PackageManagerService.java revision b9f8a5204a1b0b3919fa921e858d04124c582828 
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.content.BroadcastReceiver;
88import android.content.ComponentName;
89import android.content.Context;
90import android.content.IIntentReceiver;
91import android.content.Intent;
92import android.content.IntentFilter;
93import android.content.IntentSender;
94import android.content.IntentSender.SendIntentException;
95import android.content.ServiceConnection;
96import android.content.pm.ActivityInfo;
97import android.content.pm.ApplicationInfo;
98import android.content.pm.FeatureInfo;
99import android.content.pm.IPackageDataObserver;
100import android.content.pm.IPackageDeleteObserver;
101import android.content.pm.IPackageDeleteObserver2;
102import android.content.pm.IPackageInstallObserver2;
103import android.content.pm.IPackageInstaller;
104import android.content.pm.IPackageManager;
105import android.content.pm.IPackageMoveObserver;
106import android.content.pm.IPackageStatsObserver;
107import android.content.pm.InstrumentationInfo;
108import android.content.pm.KeySet;
109import android.content.pm.ManifestDigest;
110import android.content.pm.PackageCleanItem;
111import android.content.pm.PackageInfo;
112import android.content.pm.PackageInfoLite;
113import android.content.pm.PackageInstaller;
114import android.content.pm.PackageManager;
115import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
116import android.content.pm.PackageParser.ActivityIntentInfo;
117import android.content.pm.PackageParser.PackageLite;
118import android.content.pm.PackageParser.PackageParserException;
119import android.content.pm.PackageParser;
120import android.content.pm.PackageStats;
121import android.content.pm.PackageUserState;
122import android.content.pm.ParceledListSlice;
123import android.content.pm.PermissionGroupInfo;
124import android.content.pm.PermissionInfo;
125import android.content.pm.ProviderInfo;
126import android.content.pm.ResolveInfo;
127import android.content.pm.ServiceInfo;
128import android.content.pm.Signature;
129import android.content.pm.UserInfo;
130import android.content.pm.VerificationParams;
131import android.content.pm.VerifierDeviceIdentity;
132import android.content.pm.VerifierInfo;
133import android.content.res.Resources;
134import android.hardware.display.DisplayManager;
135import android.net.Uri;
136import android.os.Binder;
137import android.os.Build;
138import android.os.Bundle;
139import android.os.Environment;
140import android.os.Environment.UserEnvironment;
141import android.os.storage.StorageManager;
142import android.os.Debug;
143import android.os.FileUtils;
144import android.os.Handler;
145import android.os.IBinder;
146import android.os.Looper;
147import android.os.Message;
148import android.os.Parcel;
149import android.os.ParcelFileDescriptor;
150import android.os.Process;
151import android.os.RemoteException;
152import android.os.SELinux;
153import android.os.ServiceManager;
154import android.os.SystemClock;
155import android.os.SystemProperties;
156import android.os.UserHandle;
157import android.os.UserManager;
158import android.security.KeyStore;
159import android.security.SystemKeyStore;
160import android.system.ErrnoException;
161import android.system.Os;
162import android.system.StructStat;
163import android.text.TextUtils;
164import android.util.ArraySet;
165import android.util.AtomicFile;
166import android.util.DisplayMetrics;
167import android.util.EventLog;
168import android.util.ExceptionUtils;
169import android.util.Log;
170import android.util.LogPrinter;
171import android.util.PrintStreamPrinter;
172import android.util.Slog;
173import android.util.SparseArray;
174import android.util.SparseBooleanArray;
175import android.view.Display;
176
177import java.io.BufferedInputStream;
178import java.io.BufferedOutputStream;
179import java.io.BufferedReader;
180import java.io.File;
181import java.io.FileDescriptor;
182import java.io.FileInputStream;
183import java.io.FileNotFoundException;
184import java.io.FileOutputStream;
185import java.io.FileReader;
186import java.io.FilenameFilter;
187import java.io.IOException;
188import java.io.InputStream;
189import java.io.PrintWriter;
190import java.nio.charset.StandardCharsets;
191import java.security.NoSuchAlgorithmException;
192import java.security.PublicKey;
193import java.security.cert.CertificateEncodingException;
194import java.security.cert.CertificateException;
195import java.text.SimpleDateFormat;
196import java.util.ArrayList;
197import java.util.Arrays;
198import java.util.Collection;
199import java.util.Collections;
200import java.util.Comparator;
201import java.util.Date;
202import java.util.HashMap;
203import java.util.HashSet;
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 DisplayMetrics mMetrics;
333    final int mDefParseFlags;
334    final String[] mSeparateProcesses;
335
336    // This is where all application persistent data goes.
337    final File mAppDataDir;
338
339    // This is where all application persistent data goes for secondary users.
340    final File mUserAppDataDir;
341
342    /** The location for ASEC container files on internal storage. */
343    final String mAsecInternalPath;
344
345    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
346    // LOCK HELD.  Can be called with mInstallLock held.
347    final Installer mInstaller;
348
349    /** Directory where installed third-party apps stored */
350    final File mAppInstallDir;
351
352    /**
353     * Directory to which applications installed internally have their
354     * 32 bit native libraries copied.
355     */
356    private File mAppLib32InstallDir;
357
358    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
359    // apps.
360    final File mDrmAppPrivateInstallDir;
361
362    // ----------------------------------------------------------------
363
364    // Lock for state used when installing and doing other long running
365    // operations.  Methods that must be called with this lock held have
366    // the suffix "LI".
367    final Object mInstallLock = new Object();
368
369    // ----------------------------------------------------------------
370
371    // Keys are String (package name), values are Package.  This also serves
372    // as the lock for the global state.  Methods that must be called with
373    // this lock held have the prefix "LP".
374    final HashMap<String, PackageParser.Package> mPackages =
375            new HashMap<String, PackageParser.Package>();
376
377    // Tracks available target package names -> overlay package paths.
378    final HashMap<String, HashMap<String, PackageParser.Package>> mOverlays =
379        new HashMap<String, HashMap<String, PackageParser.Package>>();
380
381    final Settings mSettings;
382    boolean mRestoredSettings;
383
384    // System configuration read by SystemConfig.
385    final int[] mGlobalGids;
386    final SparseArray<HashSet<String>> mSystemPermissions;
387    final HashMap<String, FeatureInfo> mAvailableFeatures;
388
389    // If mac_permissions.xml was found for seinfo labeling.
390    boolean mFoundPolicyFile;
391
392    // If a recursive restorecon of /data/data/<pkg> is needed.
393    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
394
395    public static final class SharedLibraryEntry {
396        public final String path;
397        public final String apk;
398
399        SharedLibraryEntry(String _path, String _apk) {
400            path = _path;
401            apk = _apk;
402        }
403    }
404
405    // Currently known shared libraries.
406    final HashMap<String, SharedLibraryEntry> mSharedLibraries =
407            new HashMap<String, SharedLibraryEntry>();
408
409    // All available activities, for your resolving pleasure.
410    final ActivityIntentResolver mActivities =
411            new ActivityIntentResolver();
412
413    // All available receivers, for your resolving pleasure.
414    final ActivityIntentResolver mReceivers =
415            new ActivityIntentResolver();
416
417    // All available services, for your resolving pleasure.
418    final ServiceIntentResolver mServices = new ServiceIntentResolver();
419
420    // All available providers, for your resolving pleasure.
421    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
422
423    // Mapping from provider base names (first directory in content URI codePath)
424    // to the provider information.
425    final HashMap<String, PackageParser.Provider> mProvidersByAuthority =
426            new HashMap<String, PackageParser.Provider>();
427
428    // Mapping from instrumentation class names to info about them.
429    final HashMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
430            new HashMap<ComponentName, PackageParser.Instrumentation>();
431
432    // Mapping from permission names to info about them.
433    final HashMap<String, PackageParser.PermissionGroup> mPermissionGroups =
434            new HashMap<String, PackageParser.PermissionGroup>();
435
436    // Packages whose data we have transfered into another package, thus
437    // should no longer exist.
438    final HashSet<String> mTransferedPackages = new HashSet<String>();
439
440    // Broadcast actions that are only available to the system.
441    final HashSet<String> mProtectedBroadcasts = new HashSet<String>();
442
443    /** List of packages waiting for verification. */
444    final SparseArray<PackageVerificationState> mPendingVerification
445            = new SparseArray<PackageVerificationState>();
446
447    /** Set of packages associated with each app op permission. */
448    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
449
450    final PackageInstallerService mInstallerService;
451
452    HashSet<PackageParser.Package> mDeferredDexOpt = null;
453
454    // Cache of users who need badging.
455    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
456
457    /** Token for keys in mPendingVerification. */
458    private int mPendingVerificationToken = 0;
459
460    volatile boolean mSystemReady;
461    volatile boolean mSafeMode;
462    volatile boolean mHasSystemUidErrors;
463
464    ApplicationInfo mAndroidApplication;
465    final ActivityInfo mResolveActivity = new ActivityInfo();
466    final ResolveInfo mResolveInfo = new ResolveInfo();
467    ComponentName mResolveComponentName;
468    PackageParser.Package mPlatformPackage;
469    ComponentName mCustomResolverComponentName;
470
471    boolean mResolverReplaced = false;
472
473    // Set of pending broadcasts for aggregating enable/disable of components.
474    static class PendingPackageBroadcasts {
475        // for each user id, a map of <package name -> components within that package>
476        final SparseArray<HashMap<String, ArrayList<String>>> mUidMap;
477
478        public PendingPackageBroadcasts() {
479            mUidMap = new SparseArray<HashMap<String, ArrayList<String>>>(2);
480        }
481
482        public ArrayList<String> get(int userId, String packageName) {
483            HashMap<String, ArrayList<String>> packages = getOrAllocate(userId);
484            return packages.get(packageName);
485        }
486
487        public void put(int userId, String packageName, ArrayList<String> components) {
488            HashMap<String, ArrayList<String>> packages = getOrAllocate(userId);
489            packages.put(packageName, components);
490        }
491
492        public void remove(int userId, String packageName) {
493            HashMap<String, ArrayList<String>> packages = mUidMap.get(userId);
494            if (packages != null) {
495                packages.remove(packageName);
496            }
497        }
498
499        public void remove(int userId) {
500            mUidMap.remove(userId);
501        }
502
503        public int userIdCount() {
504            return mUidMap.size();
505        }
506
507        public int userIdAt(int n) {
508            return mUidMap.keyAt(n);
509        }
510
511        public HashMap<String, ArrayList<String>> packagesForUserId(int userId) {
512            return mUidMap.get(userId);
513        }
514
515        public int size() {
516            // total number of pending broadcast entries across all userIds
517            int num = 0;
518            for (int i = 0; i< mUidMap.size(); i++) {
519                num += mUidMap.valueAt(i).size();
520            }
521            return num;
522        }
523
524        public void clear() {
525            mUidMap.clear();
526        }
527
528        private HashMap<String, ArrayList<String>> getOrAllocate(int userId) {
529            HashMap<String, ArrayList<String>> map = mUidMap.get(userId);
530            if (map == null) {
531                map = new HashMap<String, ArrayList<String>>();
532                mUidMap.put(userId, map);
533            }
534            return map;
535        }
536    }
537    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
538
539    // Service Connection to remote media container service to copy
540    // package uri's from external media onto secure containers
541    // or internal storage.
542    private IMediaContainerService mContainerService = null;
543
544    static final int SEND_PENDING_BROADCAST = 1;
545    static final int MCS_BOUND = 3;
546    static final int END_COPY = 4;
547    static final int INIT_COPY = 5;
548    static final int MCS_UNBIND = 6;
549    static final int START_CLEANING_PACKAGE = 7;
550    static final int FIND_INSTALL_LOC = 8;
551    static final int POST_INSTALL = 9;
552    static final int MCS_RECONNECT = 10;
553    static final int MCS_GIVE_UP = 11;
554    static final int UPDATED_MEDIA_STATUS = 12;
555    static final int WRITE_SETTINGS = 13;
556    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
557    static final int PACKAGE_VERIFIED = 15;
558    static final int CHECK_PENDING_VERIFICATION = 16;
559
560    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
561
562    // Delay time in millisecs
563    static final int BROADCAST_DELAY = 10 * 1000;
564
565    static UserManagerService sUserManager;
566
567    // Stores a list of users whose package restrictions file needs to be updated
568    private HashSet<Integer> mDirtyUsers = new HashSet<Integer>();
569
570    final private DefaultContainerConnection mDefContainerConn =
571            new DefaultContainerConnection();
572    class DefaultContainerConnection implements ServiceConnection {
573        public void onServiceConnected(ComponentName name, IBinder service) {
574            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
575            IMediaContainerService imcs =
576                IMediaContainerService.Stub.asInterface(service);
577            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
578        }
579
580        public void onServiceDisconnected(ComponentName name) {
581            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
582        }
583    };
584
585    // Recordkeeping of restore-after-install operations that are currently in flight
586    // between the Package Manager and the Backup Manager
587    class PostInstallData {
588        public InstallArgs args;
589        public PackageInstalledInfo res;
590
591        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
592            args = _a;
593            res = _r;
594        }
595    };
596    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
597    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
598
599    private final String mRequiredVerifierPackage;
600
601    private final PackageUsage mPackageUsage = new PackageUsage();
602
603    private class PackageUsage {
604        private static final int WRITE_INTERVAL
605            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
606
607        private final Object mFileLock = new Object();
608        private final AtomicLong mLastWritten = new AtomicLong(0);
609        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
610
611        private boolean mIsHistoricalPackageUsageAvailable = true;
612
613        boolean isHistoricalPackageUsageAvailable() {
614            return mIsHistoricalPackageUsageAvailable;
615        }
616
617        void write(boolean force) {
618            if (force) {
619                writeInternal();
620                return;
621            }
622            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
623                && !DEBUG_DEXOPT) {
624                return;
625            }
626            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
627                new Thread("PackageUsage_DiskWriter") {
628                    @Override
629                    public void run() {
630                        try {
631                            writeInternal();
632                        } finally {
633                            mBackgroundWriteRunning.set(false);
634                        }
635                    }
636                }.start();
637            }
638        }
639
640        private void writeInternal() {
641            synchronized (mPackages) {
642                synchronized (mFileLock) {
643                    AtomicFile file = getFile();
644                    FileOutputStream f = null;
645                    try {
646                        f = file.startWrite();
647                        BufferedOutputStream out = new BufferedOutputStream(f);
648                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0660, SYSTEM_UID, PACKAGE_INFO_GID);
649                        StringBuilder sb = new StringBuilder();
650                        for (PackageParser.Package pkg : mPackages.values()) {
651                            if (pkg.mLastPackageUsageTimeInMills == 0) {
652                                continue;
653                            }
654                            sb.setLength(0);
655                            sb.append(pkg.packageName);
656                            sb.append(' ');
657                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
658                            sb.append('\n');
659                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
660                        }
661                        out.flush();
662                        file.finishWrite(f);
663                    } catch (IOException e) {
664                        if (f != null) {
665                            file.failWrite(f);
666                        }
667                        Log.e(TAG, "Failed to write package usage times", e);
668                    }
669                }
670            }
671            mLastWritten.set(SystemClock.elapsedRealtime());
672        }
673
674        void readLP() {
675            synchronized (mFileLock) {
676                AtomicFile file = getFile();
677                BufferedInputStream in = null;
678                try {
679                    in = new BufferedInputStream(file.openRead());
680                    StringBuffer sb = new StringBuffer();
681                    while (true) {
682                        String packageName = readToken(in, sb, ' ');
683                        if (packageName == null) {
684                            break;
685                        }
686                        String timeInMillisString = readToken(in, sb, '\n');
687                        if (timeInMillisString == null) {
688                            throw new IOException("Failed to find last usage time for package "
689                                                  + packageName);
690                        }
691                        PackageParser.Package pkg = mPackages.get(packageName);
692                        if (pkg == null) {
693                            continue;
694                        }
695                        long timeInMillis;
696                        try {
697                            timeInMillis = Long.parseLong(timeInMillisString.toString());
698                        } catch (NumberFormatException e) {
699                            throw new IOException("Failed to parse " + timeInMillisString
700                                                  + " as a long.", e);
701                        }
702                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
703                    }
704                } catch (FileNotFoundException expected) {
705                    mIsHistoricalPackageUsageAvailable = false;
706                } catch (IOException e) {
707                    Log.w(TAG, "Failed to read package usage times", e);
708                } finally {
709                    IoUtils.closeQuietly(in);
710                }
711            }
712            mLastWritten.set(SystemClock.elapsedRealtime());
713        }
714
715        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
716                throws IOException {
717            sb.setLength(0);
718            while (true) {
719                int ch = in.read();
720                if (ch == -1) {
721                    if (sb.length() == 0) {
722                        return null;
723                    }
724                    throw new IOException("Unexpected EOF");
725                }
726                if (ch == endOfToken) {
727                    return sb.toString();
728                }
729                sb.append((char)ch);
730            }
731        }
732
733        private AtomicFile getFile() {
734            File dataDir = Environment.getDataDirectory();
735            File systemDir = new File(dataDir, "system");
736            File fname = new File(systemDir, "package-usage.list");
737            return new AtomicFile(fname);
738        }
739    }
740
741    class PackageHandler extends Handler {
742        private boolean mBound = false;
743        final ArrayList<HandlerParams> mPendingInstalls =
744            new ArrayList<HandlerParams>();
745
746        private boolean connectToService() {
747            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
748                    " DefaultContainerService");
749            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
750            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
751            if (mContext.bindServiceAsUser(service, mDefContainerConn,
752                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
753                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
754                mBound = true;
755                return true;
756            }
757            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
758            return false;
759        }
760
761        private void disconnectService() {
762            mContainerService = null;
763            mBound = false;
764            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
765            mContext.unbindService(mDefContainerConn);
766            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
767        }
768
769        PackageHandler(Looper looper) {
770            super(looper);
771        }
772
773        public void handleMessage(Message msg) {
774            try {
775                doHandleMessage(msg);
776            } finally {
777                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
778            }
779        }
780
781        void doHandleMessage(Message msg) {
782            switch (msg.what) {
783                case INIT_COPY: {
784                    HandlerParams params = (HandlerParams) msg.obj;
785                    int idx = mPendingInstalls.size();
786                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
787                    // If a bind was already initiated we dont really
788                    // need to do anything. The pending install
789                    // will be processed later on.
790                    if (!mBound) {
791                        // If this is the only one pending we might
792                        // have to bind to the service again.
793                        if (!connectToService()) {
794                            Slog.e(TAG, "Failed to bind to media container service");
795                            params.serviceError();
796                            return;
797                        } else {
798                            // Once we bind to the service, the first
799                            // pending request will be processed.
800                            mPendingInstalls.add(idx, params);
801                        }
802                    } else {
803                        mPendingInstalls.add(idx, params);
804                        // Already bound to the service. Just make
805                        // sure we trigger off processing the first request.
806                        if (idx == 0) {
807                            mHandler.sendEmptyMessage(MCS_BOUND);
808                        }
809                    }
810                    break;
811                }
812                case MCS_BOUND: {
813                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
814                    if (msg.obj != null) {
815                        mContainerService = (IMediaContainerService) msg.obj;
816                    }
817                    if (mContainerService == null) {
818                        // Something seriously wrong. Bail out
819                        Slog.e(TAG, "Cannot bind to media container service");
820                        for (HandlerParams params : mPendingInstalls) {
821                            // Indicate service bind error
822                            params.serviceError();
823                        }
824                        mPendingInstalls.clear();
825                    } else if (mPendingInstalls.size() > 0) {
826                        HandlerParams params = mPendingInstalls.get(0);
827                        if (params != null) {
828                            if (params.startCopy()) {
829                                // We are done...  look for more work or to
830                                // go idle.
831                                if (DEBUG_SD_INSTALL) Log.i(TAG,
832                                        "Checking for more work or unbind...");
833                                // Delete pending install
834                                if (mPendingInstalls.size() > 0) {
835                                    mPendingInstalls.remove(0);
836                                }
837                                if (mPendingInstalls.size() == 0) {
838                                    if (mBound) {
839                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
840                                                "Posting delayed MCS_UNBIND");
841                                        removeMessages(MCS_UNBIND);
842                                        Message ubmsg = obtainMessage(MCS_UNBIND);
843                                        // Unbind after a little delay, to avoid
844                                        // continual thrashing.
845                                        sendMessageDelayed(ubmsg, 10000);
846                                    }
847                                } else {
848                                    // There are more pending requests in queue.
849                                    // Just post MCS_BOUND message to trigger processing
850                                    // of next pending install.
851                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
852                                            "Posting MCS_BOUND for next work");
853                                    mHandler.sendEmptyMessage(MCS_BOUND);
854                                }
855                            }
856                        }
857                    } else {
858                        // Should never happen ideally.
859                        Slog.w(TAG, "Empty queue");
860                    }
861                    break;
862                }
863                case MCS_RECONNECT: {
864                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
865                    if (mPendingInstalls.size() > 0) {
866                        if (mBound) {
867                            disconnectService();
868                        }
869                        if (!connectToService()) {
870                            Slog.e(TAG, "Failed to bind to media container service");
871                            for (HandlerParams params : mPendingInstalls) {
872                                // Indicate service bind error
873                                params.serviceError();
874                            }
875                            mPendingInstalls.clear();
876                        }
877                    }
878                    break;
879                }
880                case MCS_UNBIND: {
881                    // If there is no actual work left, then time to unbind.
882                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
883
884                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
885                        if (mBound) {
886                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
887
888                            disconnectService();
889                        }
890                    } else if (mPendingInstalls.size() > 0) {
891                        // There are more pending requests in queue.
892                        // Just post MCS_BOUND message to trigger processing
893                        // of next pending install.
894                        mHandler.sendEmptyMessage(MCS_BOUND);
895                    }
896
897                    break;
898                }
899                case MCS_GIVE_UP: {
900                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
901                    mPendingInstalls.remove(0);
902                    break;
903                }
904                case SEND_PENDING_BROADCAST: {
905                    String packages[];
906                    ArrayList<String> components[];
907                    int size = 0;
908                    int uids[];
909                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
910                    synchronized (mPackages) {
911                        if (mPendingBroadcasts == null) {
912                            return;
913                        }
914                        size = mPendingBroadcasts.size();
915                        if (size <= 0) {
916                            // Nothing to be done. Just return
917                            return;
918                        }
919                        packages = new String[size];
920                        components = new ArrayList[size];
921                        uids = new int[size];
922                        int i = 0;  // filling out the above arrays
923
924                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
925                            int packageUserId = mPendingBroadcasts.userIdAt(n);
926                            Iterator<Map.Entry<String, ArrayList<String>>> it
927                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
928                                            .entrySet().iterator();
929                            while (it.hasNext() && i < size) {
930                                Map.Entry<String, ArrayList<String>> ent = it.next();
931                                packages[i] = ent.getKey();
932                                components[i] = ent.getValue();
933                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
934                                uids[i] = (ps != null)
935                                        ? UserHandle.getUid(packageUserId, ps.appId)
936                                        : -1;
937                                i++;
938                            }
939                        }
940                        size = i;
941                        mPendingBroadcasts.clear();
942                    }
943                    // Send broadcasts
944                    for (int i = 0; i < size; i++) {
945                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
946                    }
947                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
948                    break;
949                }
950                case START_CLEANING_PACKAGE: {
951                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
952                    final String packageName = (String)msg.obj;
953                    final int userId = msg.arg1;
954                    final boolean andCode = msg.arg2 != 0;
955                    synchronized (mPackages) {
956                        if (userId == UserHandle.USER_ALL) {
957                            int[] users = sUserManager.getUserIds();
958                            for (int user : users) {
959                                mSettings.addPackageToCleanLPw(
960                                        new PackageCleanItem(user, packageName, andCode));
961                            }
962                        } else {
963                            mSettings.addPackageToCleanLPw(
964                                    new PackageCleanItem(userId, packageName, andCode));
965                        }
966                    }
967                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
968                    startCleaningPackages();
969                } break;
970                case POST_INSTALL: {
971                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
972                    PostInstallData data = mRunningInstalls.get(msg.arg1);
973                    mRunningInstalls.delete(msg.arg1);
974                    boolean deleteOld = false;
975
976                    if (data != null) {
977                        InstallArgs args = data.args;
978                        PackageInstalledInfo res = data.res;
979
980                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
981                            res.removedInfo.sendBroadcast(false, true, false);
982                            Bundle extras = new Bundle(1);
983                            extras.putInt(Intent.EXTRA_UID, res.uid);
984                            // Determine the set of users who are adding this
985                            // package for the first time vs. those who are seeing
986                            // an update.
987                            int[] firstUsers;
988                            int[] updateUsers = new int[0];
989                            if (res.origUsers == null || res.origUsers.length == 0) {
990                                firstUsers = res.newUsers;
991                            } else {
992                                firstUsers = new int[0];
993                                for (int i=0; i<res.newUsers.length; i++) {
994                                    int user = res.newUsers[i];
995                                    boolean isNew = true;
996                                    for (int j=0; j<res.origUsers.length; j++) {
997                                        if (res.origUsers[j] == user) {
998                                            isNew = false;
999                                            break;
1000                                        }
1001                                    }
1002                                    if (isNew) {
1003                                        int[] newFirst = new int[firstUsers.length+1];
1004                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1005                                                firstUsers.length);
1006                                        newFirst[firstUsers.length] = user;
1007                                        firstUsers = newFirst;
1008                                    } else {
1009                                        int[] newUpdate = new int[updateUsers.length+1];
1010                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1011                                                updateUsers.length);
1012                                        newUpdate[updateUsers.length] = user;
1013                                        updateUsers = newUpdate;
1014                                    }
1015                                }
1016                            }
1017                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1018                                    res.pkg.applicationInfo.packageName,
1019                                    extras, null, null, firstUsers);
1020                            final boolean update = res.removedInfo.removedPackage != null;
1021                            if (update) {
1022                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1023                            }
1024                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1025                                    res.pkg.applicationInfo.packageName,
1026                                    extras, null, null, updateUsers);
1027                            if (update) {
1028                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1029                                        res.pkg.applicationInfo.packageName,
1030                                        extras, null, null, updateUsers);
1031                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1032                                        null, null,
1033                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1034
1035                                // treat asec-hosted packages like removable media on upgrade
1036                                if (isForwardLocked(res.pkg) || isExternal(res.pkg)) {
1037                                    if (DEBUG_INSTALL) {
1038                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1039                                                + " is ASEC-hosted -> AVAILABLE");
1040                                    }
1041                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1042                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1043                                    pkgList.add(res.pkg.applicationInfo.packageName);
1044                                    sendResourcesChangedBroadcast(true, true,
1045                                            pkgList,uidArray, null);
1046                                }
1047                            }
1048                            if (res.removedInfo.args != null) {
1049                                // Remove the replaced package's older resources safely now
1050                                deleteOld = true;
1051                            }
1052
1053                            // Log current value of "unknown sources" setting
1054                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1055                                getUnknownSourcesSettings());
1056                        }
1057                        // Force a gc to clear up things
1058                        Runtime.getRuntime().gc();
1059                        // We delete after a gc for applications  on sdcard.
1060                        if (deleteOld) {
1061                            synchronized (mInstallLock) {
1062                                res.removedInfo.args.doPostDeleteLI(true);
1063                            }
1064                        }
1065                        if (args.observer != null) {
1066                            try {
1067                                Bundle extras = extrasForInstallResult(res);
1068                                args.observer.onPackageInstalled(res.name, res.returnCode,
1069                                        res.returnMsg, extras);
1070                            } catch (RemoteException e) {
1071                                Slog.i(TAG, "Observer no longer exists.");
1072                            }
1073                        }
1074                    } else {
1075                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1076                    }
1077                } break;
1078                case UPDATED_MEDIA_STATUS: {
1079                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1080                    boolean reportStatus = msg.arg1 == 1;
1081                    boolean doGc = msg.arg2 == 1;
1082                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1083                    if (doGc) {
1084                        // Force a gc to clear up stale containers.
1085                        Runtime.getRuntime().gc();
1086                    }
1087                    if (msg.obj != null) {
1088                        @SuppressWarnings("unchecked")
1089                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1090                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1091                        // Unload containers
1092                        unloadAllContainers(args);
1093                    }
1094                    if (reportStatus) {
1095                        try {
1096                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1097                            PackageHelper.getMountService().finishMediaUpdate();
1098                        } catch (RemoteException e) {
1099                            Log.e(TAG, "MountService not running?");
1100                        }
1101                    }
1102                } break;
1103                case WRITE_SETTINGS: {
1104                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1105                    synchronized (mPackages) {
1106                        removeMessages(WRITE_SETTINGS);
1107                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1108                        mSettings.writeLPr();
1109                        mDirtyUsers.clear();
1110                    }
1111                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1112                } break;
1113                case WRITE_PACKAGE_RESTRICTIONS: {
1114                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1115                    synchronized (mPackages) {
1116                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1117                        for (int userId : mDirtyUsers) {
1118                            mSettings.writePackageRestrictionsLPr(userId);
1119                        }
1120                        mDirtyUsers.clear();
1121                    }
1122                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1123                } break;
1124                case CHECK_PENDING_VERIFICATION: {
1125                    final int verificationId = msg.arg1;
1126                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1127
1128                    if ((state != null) && !state.timeoutExtended()) {
1129                        final InstallArgs args = state.getInstallArgs();
1130                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1131
1132                        Slog.i(TAG, "Verification timed out for " + originUri);
1133                        mPendingVerification.remove(verificationId);
1134
1135                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1136
1137                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1138                            Slog.i(TAG, "Continuing with installation of " + originUri);
1139                            state.setVerifierResponse(Binder.getCallingUid(),
1140                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1141                            broadcastPackageVerified(verificationId, originUri,
1142                                    PackageManager.VERIFICATION_ALLOW,
1143                                    state.getInstallArgs().getUser());
1144                            try {
1145                                ret = args.copyApk(mContainerService, true);
1146                            } catch (RemoteException e) {
1147                                Slog.e(TAG, "Could not contact the ContainerService");
1148                            }
1149                        } else {
1150                            broadcastPackageVerified(verificationId, originUri,
1151                                    PackageManager.VERIFICATION_REJECT,
1152                                    state.getInstallArgs().getUser());
1153                        }
1154
1155                        processPendingInstall(args, ret);
1156                        mHandler.sendEmptyMessage(MCS_UNBIND);
1157                    }
1158                    break;
1159                }
1160                case PACKAGE_VERIFIED: {
1161                    final int verificationId = msg.arg1;
1162
1163                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1164                    if (state == null) {
1165                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1166                        break;
1167                    }
1168
1169                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1170
1171                    state.setVerifierResponse(response.callerUid, response.code);
1172
1173                    if (state.isVerificationComplete()) {
1174                        mPendingVerification.remove(verificationId);
1175
1176                        final InstallArgs args = state.getInstallArgs();
1177                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1178
1179                        int ret;
1180                        if (state.isInstallAllowed()) {
1181                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1182                            broadcastPackageVerified(verificationId, originUri,
1183                                    response.code, state.getInstallArgs().getUser());
1184                            try {
1185                                ret = args.copyApk(mContainerService, true);
1186                            } catch (RemoteException e) {
1187                                Slog.e(TAG, "Could not contact the ContainerService");
1188                            }
1189                        } else {
1190                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1191                        }
1192
1193                        processPendingInstall(args, ret);
1194
1195                        mHandler.sendEmptyMessage(MCS_UNBIND);
1196                    }
1197
1198                    break;
1199                }
1200            }
1201        }
1202    }
1203
1204    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1205        Bundle extras = null;
1206        switch (res.returnCode) {
1207            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1208                extras = new Bundle();
1209                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1210                        res.origPermission);
1211                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1212                        res.origPackage);
1213                break;
1214            }
1215        }
1216        return extras;
1217    }
1218
1219    void scheduleWriteSettingsLocked() {
1220        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1221            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1222        }
1223    }
1224
1225    void scheduleWritePackageRestrictionsLocked(int userId) {
1226        if (!sUserManager.exists(userId)) return;
1227        mDirtyUsers.add(userId);
1228        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1229            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1230        }
1231    }
1232
1233    public static final PackageManagerService main(Context context, Installer installer,
1234            boolean factoryTest, boolean onlyCore) {
1235        PackageManagerService m = new PackageManagerService(context, installer,
1236                factoryTest, onlyCore);
1237        ServiceManager.addService("package", m);
1238        return m;
1239    }
1240
1241    static String[] splitString(String str, char sep) {
1242        int count = 1;
1243        int i = 0;
1244        while ((i=str.indexOf(sep, i)) >= 0) {
1245            count++;
1246            i++;
1247        }
1248
1249        String[] res = new String[count];
1250        i=0;
1251        count = 0;
1252        int lastI=0;
1253        while ((i=str.indexOf(sep, i)) >= 0) {
1254            res[count] = str.substring(lastI, i);
1255            count++;
1256            i++;
1257            lastI = i;
1258        }
1259        res[count] = str.substring(lastI, str.length());
1260        return res;
1261    }
1262
1263    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1264        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1265                Context.DISPLAY_SERVICE);
1266        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1267    }
1268
1269    public PackageManagerService(Context context, Installer installer,
1270            boolean factoryTest, boolean onlyCore) {
1271        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1272                SystemClock.uptimeMillis());
1273
1274        if (mSdkVersion <= 0) {
1275            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1276        }
1277
1278        mContext = context;
1279        mFactoryTest = factoryTest;
1280        mOnlyCore = onlyCore;
1281        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1282        mMetrics = new DisplayMetrics();
1283        mSettings = new Settings(context);
1284        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1285                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1286        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1287                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1288        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1289                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1290        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1291                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1292        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1293                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1294        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1295                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1296
1297        String separateProcesses = SystemProperties.get("debug.separate_processes");
1298        if (separateProcesses != null && separateProcesses.length() > 0) {
1299            if ("*".equals(separateProcesses)) {
1300                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1301                mSeparateProcesses = null;
1302                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1303            } else {
1304                mDefParseFlags = 0;
1305                mSeparateProcesses = separateProcesses.split(",");
1306                Slog.w(TAG, "Running with debug.separate_processes: "
1307                        + separateProcesses);
1308            }
1309        } else {
1310            mDefParseFlags = 0;
1311            mSeparateProcesses = null;
1312        }
1313
1314        mInstaller = installer;
1315
1316        getDefaultDisplayMetrics(context, mMetrics);
1317
1318        SystemConfig systemConfig = SystemConfig.getInstance();
1319        mGlobalGids = systemConfig.getGlobalGids();
1320        mSystemPermissions = systemConfig.getSystemPermissions();
1321        mAvailableFeatures = systemConfig.getAvailableFeatures();
1322
1323        synchronized (mInstallLock) {
1324        // writer
1325        synchronized (mPackages) {
1326            mHandlerThread = new ServiceThread(TAG,
1327                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1328            mHandlerThread.start();
1329            mHandler = new PackageHandler(mHandlerThread.getLooper());
1330            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1331
1332            File dataDir = Environment.getDataDirectory();
1333            mAppDataDir = new File(dataDir, "data");
1334            mAppInstallDir = new File(dataDir, "app");
1335            mAppLib32InstallDir = new File(dataDir, "app-lib");
1336            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1337            mUserAppDataDir = new File(dataDir, "user");
1338            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1339
1340            sUserManager = new UserManagerService(context, this,
1341                    mInstallLock, mPackages);
1342
1343            // Propagate permission configuration in to package manager.
1344            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1345                    = systemConfig.getPermissions();
1346            for (int i=0; i<permConfig.size(); i++) {
1347                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1348                BasePermission bp = mSettings.mPermissions.get(perm.name);
1349                if (bp == null) {
1350                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1351                    mSettings.mPermissions.put(perm.name, bp);
1352                }
1353                if (perm.gids != null) {
1354                    bp.gids = appendInts(bp.gids, perm.gids);
1355                }
1356            }
1357
1358            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1359            for (int i=0; i<libConfig.size(); i++) {
1360                mSharedLibraries.put(libConfig.keyAt(i),
1361                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1362            }
1363
1364            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1365
1366            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1367                    mSdkVersion, mOnlyCore);
1368
1369            String customResolverActivity = Resources.getSystem().getString(
1370                    R.string.config_customResolverActivity);
1371            if (TextUtils.isEmpty(customResolverActivity)) {
1372                customResolverActivity = null;
1373            } else {
1374                mCustomResolverComponentName = ComponentName.unflattenFromString(
1375                        customResolverActivity);
1376            }
1377
1378            long startTime = SystemClock.uptimeMillis();
1379
1380            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1381                    startTime);
1382
1383            // Set flag to monitor and not change apk file paths when
1384            // scanning install directories.
1385            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1386
1387            final HashSet<String> alreadyDexOpted = new HashSet<String>();
1388
1389            /**
1390             * Add everything in the in the boot class path to the
1391             * list of process files because dexopt will have been run
1392             * if necessary during zygote startup.
1393             */
1394            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1395            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1396
1397            if (bootClassPath != null) {
1398                String[] bootClassPathElements = splitString(bootClassPath, ':');
1399                for (String element : bootClassPathElements) {
1400                    alreadyDexOpted.add(element);
1401                }
1402            } else {
1403                Slog.w(TAG, "No BOOTCLASSPATH found!");
1404            }
1405
1406            if (systemServerClassPath != null) {
1407                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1408                for (String element : systemServerClassPathElements) {
1409                    alreadyDexOpted.add(element);
1410                }
1411            } else {
1412                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1413            }
1414
1415            boolean didDexOptLibraryOrTool = false;
1416
1417            final List<String> allInstructionSets = getAllInstructionSets();
1418            final String[] dexCodeInstructionSets =
1419                getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()]));
1420
1421            /**
1422             * Ensure all external libraries have had dexopt run on them.
1423             */
1424            if (mSharedLibraries.size() > 0) {
1425                // NOTE: For now, we're compiling these system "shared libraries"
1426                // (and framework jars) into all available architectures. It's possible
1427                // to compile them only when we come across an app that uses them (there's
1428                // already logic for that in scanPackageLI) but that adds some complexity.
1429                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1430                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1431                        final String lib = libEntry.path;
1432                        if (lib == null) {
1433                            continue;
1434                        }
1435
1436                        try {
1437                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1438                                                                                 dexCodeInstructionSet,
1439                                                                                 false);
1440                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1441                                alreadyDexOpted.add(lib);
1442
1443                                // The list of "shared libraries" we have at this point is
1444                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1445                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1446                                } else {
1447                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1448                                }
1449                                didDexOptLibraryOrTool = true;
1450                            }
1451                        } catch (FileNotFoundException e) {
1452                            Slog.w(TAG, "Library not found: " + lib);
1453                        } catch (IOException e) {
1454                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1455                                    + e.getMessage());
1456                        }
1457                    }
1458                }
1459            }
1460
1461            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1462
1463            // Gross hack for now: we know this file doesn't contain any
1464            // code, so don't dexopt it to avoid the resulting log spew.
1465            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1466
1467            // Gross hack for now: we know this file is only part of
1468            // the boot class path for art, so don't dexopt it to
1469            // avoid the resulting log spew.
1470            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1471
1472            /**
1473             * And there are a number of commands implemented in Java, which
1474             * we currently need to do the dexopt on so that they can be
1475             * run from a non-root shell.
1476             */
1477            String[] frameworkFiles = frameworkDir.list();
1478            if (frameworkFiles != null) {
1479                // TODO: We could compile these only for the most preferred ABI. We should
1480                // first double check that the dex files for these commands are not referenced
1481                // by other system apps.
1482                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1483                    for (int i=0; i<frameworkFiles.length; i++) {
1484                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1485                        String path = libPath.getPath();
1486                        // Skip the file if we already did it.
1487                        if (alreadyDexOpted.contains(path)) {
1488                            continue;
1489                        }
1490                        // Skip the file if it is not a type we want to dexopt.
1491                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1492                            continue;
1493                        }
1494                        try {
1495                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1496                                                                                 dexCodeInstructionSet,
1497                                                                                 false);
1498                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1499                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1500                                didDexOptLibraryOrTool = true;
1501                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1502                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1503                                didDexOptLibraryOrTool = true;
1504                            }
1505                        } catch (FileNotFoundException e) {
1506                            Slog.w(TAG, "Jar not found: " + path);
1507                        } catch (IOException e) {
1508                            Slog.w(TAG, "Exception reading jar: " + path, e);
1509                        }
1510                    }
1511                }
1512            }
1513
1514            // Collect vendor overlay packages.
1515            // (Do this before scanning any apps.)
1516            // For security and version matching reason, only consider
1517            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1518            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1519            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1520                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1521
1522            // Find base frameworks (resource packages without code).
1523            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1524                    | PackageParser.PARSE_IS_SYSTEM_DIR
1525                    | PackageParser.PARSE_IS_PRIVILEGED,
1526                    scanFlags | SCAN_NO_DEX, 0);
1527
1528            // Collected privileged system packages.
1529            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1530            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1531                    | PackageParser.PARSE_IS_SYSTEM_DIR
1532                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1533
1534            // Collect ordinary system packages.
1535            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1536            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1537                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1538
1539            // Collect all vendor packages.
1540            File vendorAppDir = new File("/vendor/app");
1541            try {
1542                vendorAppDir = vendorAppDir.getCanonicalFile();
1543            } catch (IOException e) {
1544                // failed to look up canonical path, continue with original one
1545            }
1546            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1547                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1548
1549            // Collect all OEM packages.
1550            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1551            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1552                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1553
1554            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1555            mInstaller.moveFiles();
1556
1557            // Prune any system packages that no longer exist.
1558            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1559            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1560            if (!mOnlyCore) {
1561                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1562                while (psit.hasNext()) {
1563                    PackageSetting ps = psit.next();
1564
1565                    /*
1566                     * If this is not a system app, it can't be a
1567                     * disable system app.
1568                     */
1569                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1570                        continue;
1571                    }
1572
1573                    /*
1574                     * If the package is scanned, it's not erased.
1575                     */
1576                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1577                    if (scannedPkg != null) {
1578                        /*
1579                         * If the system app is both scanned and in the
1580                         * disabled packages list, then it must have been
1581                         * added via OTA. Remove it from the currently
1582                         * scanned package so the previously user-installed
1583                         * application can be scanned.
1584                         */
1585                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1586                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1587                                    + ps.name + "; removing system app.  Last known codePath="
1588                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1589                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1590                                    + scannedPkg.mVersionCode);
1591                            removePackageLI(ps, true);
1592                            expectingBetter.put(ps.name, ps.codePath);
1593                        }
1594
1595                        continue;
1596                    }
1597
1598                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1599                        psit.remove();
1600                        logCriticalInfo(Log.WARN, "System package " + ps.name
1601                                + " no longer exists; wiping its data");
1602                        removeDataDirsLI(ps.name);
1603                    } else {
1604                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1605                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1606                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1607                        }
1608                    }
1609                }
1610            }
1611
1612            //look for any incomplete package installations
1613            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1614            //clean up list
1615            for(int i = 0; i < deletePkgsList.size(); i++) {
1616                //clean up here
1617                cleanupInstallFailedPackage(deletePkgsList.get(i));
1618            }
1619            //delete tmp files
1620            deleteTempPackageFiles();
1621
1622            // Remove any shared userIDs that have no associated packages
1623            mSettings.pruneSharedUsersLPw();
1624
1625            if (!mOnlyCore) {
1626                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1627                        SystemClock.uptimeMillis());
1628                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1629
1630                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1631                        scanFlags, 0);
1632
1633                /**
1634                 * Remove disable package settings for any updated system
1635                 * apps that were removed via an OTA. If they're not a
1636                 * previously-updated app, remove them completely.
1637                 * Otherwise, just revoke their system-level permissions.
1638                 */
1639                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1640                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1641                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1642
1643                    String msg;
1644                    if (deletedPkg == null) {
1645                        msg = "Updated system package " + deletedAppName
1646                                + " no longer exists; wiping its data";
1647                        removeDataDirsLI(deletedAppName);
1648                    } else {
1649                        msg = "Updated system app + " + deletedAppName
1650                                + " no longer present; removing system privileges for "
1651                                + deletedAppName;
1652
1653                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1654
1655                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1656                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1657                    }
1658                    logCriticalInfo(Log.WARN, msg);
1659                }
1660
1661                /**
1662                 * Make sure all system apps that we expected to appear on
1663                 * the userdata partition actually showed up. If they never
1664                 * appeared, crawl back and revive the system version.
1665                 */
1666                for (int i = 0; i < expectingBetter.size(); i++) {
1667                    final String packageName = expectingBetter.keyAt(i);
1668                    if (!mPackages.containsKey(packageName)) {
1669                        final File scanFile = expectingBetter.valueAt(i);
1670
1671                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1672                                + " but never showed up; reverting to system");
1673
1674                        final int reparseFlags;
1675                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1676                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1677                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1678                                    | PackageParser.PARSE_IS_PRIVILEGED;
1679                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1680                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1681                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1682                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1683                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1684                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1685                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1686                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1687                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1688                        } else {
1689                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1690                            continue;
1691                        }
1692
1693                        mSettings.enableSystemPackageLPw(packageName);
1694
1695                        try {
1696                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1697                        } catch (PackageManagerException e) {
1698                            Slog.e(TAG, "Failed to parse original system package: "
1699                                    + e.getMessage());
1700                        }
1701                    }
1702                }
1703            }
1704
1705            // Now that we know all of the shared libraries, update all clients to have
1706            // the correct library paths.
1707            updateAllSharedLibrariesLPw();
1708
1709            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1710                // NOTE: We ignore potential failures here during a system scan (like
1711                // the rest of the commands above) because there's precious little we
1712                // can do about it. A settings error is reported, though.
1713                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1714                        false /* force dexopt */, false /* defer dexopt */);
1715            }
1716
1717            // Now that we know all the packages we are keeping,
1718            // read and update their last usage times.
1719            mPackageUsage.readLP();
1720
1721            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1722                    SystemClock.uptimeMillis());
1723            Slog.i(TAG, "Time to scan packages: "
1724                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1725                    + " seconds");
1726
1727            // If the platform SDK has changed since the last time we booted,
1728            // we need to re-grant app permission to catch any new ones that
1729            // appear.  This is really a hack, and means that apps can in some
1730            // cases get permissions that the user didn't initially explicitly
1731            // allow...  it would be nice to have some better way to handle
1732            // this situation.
1733            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1734                    != mSdkVersion;
1735            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1736                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1737                    + "; regranting permissions for internal storage");
1738            mSettings.mInternalSdkPlatform = mSdkVersion;
1739
1740            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1741                    | (regrantPermissions
1742                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1743                            : 0));
1744
1745            // If this is the first boot, and it is a normal boot, then
1746            // we need to initialize the default preferred apps.
1747            if (!mRestoredSettings && !onlyCore) {
1748                mSettings.readDefaultPreferredAppsLPw(this, 0);
1749            }
1750
1751            // If this is first boot after an OTA, and a normal boot, then
1752            // we need to clear code cache directories.
1753            if (!Build.FINGERPRINT.equals(mSettings.mFingerprint) && !onlyCore) {
1754                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1755                for (String pkgName : mSettings.mPackages.keySet()) {
1756                    deleteCodeCacheDirsLI(pkgName);
1757                }
1758                mSettings.mFingerprint = Build.FINGERPRINT;
1759            }
1760
1761            // All the changes are done during package scanning.
1762            mSettings.updateInternalDatabaseVersion();
1763
1764            // can downgrade to reader
1765            mSettings.writeLPr();
1766
1767            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1768                    SystemClock.uptimeMillis());
1769
1770
1771            mRequiredVerifierPackage = getRequiredVerifierLPr();
1772        } // synchronized (mPackages)
1773        } // synchronized (mInstallLock)
1774
1775        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1776
1777        // Now after opening every single application zip, make sure they
1778        // are all flushed.  Not really needed, but keeps things nice and
1779        // tidy.
1780        Runtime.getRuntime().gc();
1781    }
1782
1783    @Override
1784    public boolean isFirstBoot() {
1785        return !mRestoredSettings;
1786    }
1787
1788    @Override
1789    public boolean isOnlyCoreApps() {
1790        return mOnlyCore;
1791    }
1792
1793    private String getRequiredVerifierLPr() {
1794        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1795        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1796                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1797
1798        String requiredVerifier = null;
1799
1800        final int N = receivers.size();
1801        for (int i = 0; i < N; i++) {
1802            final ResolveInfo info = receivers.get(i);
1803
1804            if (info.activityInfo == null) {
1805                continue;
1806            }
1807
1808            final String packageName = info.activityInfo.packageName;
1809
1810            final PackageSetting ps = mSettings.mPackages.get(packageName);
1811            if (ps == null) {
1812                continue;
1813            }
1814
1815            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1816            if (!gp.grantedPermissions
1817                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1818                continue;
1819            }
1820
1821            if (requiredVerifier != null) {
1822                throw new RuntimeException("There can be only one required verifier");
1823            }
1824
1825            requiredVerifier = packageName;
1826        }
1827
1828        return requiredVerifier;
1829    }
1830
1831    @Override
1832    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1833            throws RemoteException {
1834        try {
1835            return super.onTransact(code, data, reply, flags);
1836        } catch (RuntimeException e) {
1837            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1838                Slog.wtf(TAG, "Package Manager Crash", e);
1839            }
1840            throw e;
1841        }
1842    }
1843
1844    void cleanupInstallFailedPackage(PackageSetting ps) {
1845        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1846
1847        removeDataDirsLI(ps.name);
1848        if (ps.codePath != null) {
1849            if (ps.codePath.isDirectory()) {
1850                FileUtils.deleteContents(ps.codePath);
1851            }
1852            ps.codePath.delete();
1853        }
1854        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1855            if (ps.resourcePath.isDirectory()) {
1856                FileUtils.deleteContents(ps.resourcePath);
1857            }
1858            ps.resourcePath.delete();
1859        }
1860        mSettings.removePackageLPw(ps.name);
1861    }
1862
1863    static int[] appendInts(int[] cur, int[] add) {
1864        if (add == null) return cur;
1865        if (cur == null) return add;
1866        final int N = add.length;
1867        for (int i=0; i<N; i++) {
1868            cur = appendInt(cur, add[i]);
1869        }
1870        return cur;
1871    }
1872
1873    static int[] removeInts(int[] cur, int[] rem) {
1874        if (rem == null) return cur;
1875        if (cur == null) return cur;
1876        final int N = rem.length;
1877        for (int i=0; i<N; i++) {
1878            cur = removeInt(cur, rem[i]);
1879        }
1880        return cur;
1881    }
1882
1883    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1884        if (!sUserManager.exists(userId)) return null;
1885        final PackageSetting ps = (PackageSetting) p.mExtras;
1886        if (ps == null) {
1887            return null;
1888        }
1889        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1890        final PackageUserState state = ps.readUserState(userId);
1891        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1892                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1893                state, userId);
1894    }
1895
1896    @Override
1897    public boolean isPackageAvailable(String packageName, int userId) {
1898        if (!sUserManager.exists(userId)) return false;
1899        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1900        synchronized (mPackages) {
1901            PackageParser.Package p = mPackages.get(packageName);
1902            if (p != null) {
1903                final PackageSetting ps = (PackageSetting) p.mExtras;
1904                if (ps != null) {
1905                    final PackageUserState state = ps.readUserState(userId);
1906                    if (state != null) {
1907                        return PackageParser.isAvailable(state);
1908                    }
1909                }
1910            }
1911        }
1912        return false;
1913    }
1914
1915    @Override
1916    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1917        if (!sUserManager.exists(userId)) return null;
1918        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1919        // reader
1920        synchronized (mPackages) {
1921            PackageParser.Package p = mPackages.get(packageName);
1922            if (DEBUG_PACKAGE_INFO)
1923                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1924            if (p != null) {
1925                return generatePackageInfo(p, flags, userId);
1926            }
1927            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1928                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1929            }
1930        }
1931        return null;
1932    }
1933
1934    @Override
1935    public String[] currentToCanonicalPackageNames(String[] names) {
1936        String[] out = new String[names.length];
1937        // reader
1938        synchronized (mPackages) {
1939            for (int i=names.length-1; i>=0; i--) {
1940                PackageSetting ps = mSettings.mPackages.get(names[i]);
1941                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1942            }
1943        }
1944        return out;
1945    }
1946
1947    @Override
1948    public String[] canonicalToCurrentPackageNames(String[] names) {
1949        String[] out = new String[names.length];
1950        // reader
1951        synchronized (mPackages) {
1952            for (int i=names.length-1; i>=0; i--) {
1953                String cur = mSettings.mRenamedPackages.get(names[i]);
1954                out[i] = cur != null ? cur : names[i];
1955            }
1956        }
1957        return out;
1958    }
1959
1960    @Override
1961    public int getPackageUid(String packageName, int userId) {
1962        if (!sUserManager.exists(userId)) return -1;
1963        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1964        // reader
1965        synchronized (mPackages) {
1966            PackageParser.Package p = mPackages.get(packageName);
1967            if(p != null) {
1968                return UserHandle.getUid(userId, p.applicationInfo.uid);
1969            }
1970            PackageSetting ps = mSettings.mPackages.get(packageName);
1971            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1972                return -1;
1973            }
1974            p = ps.pkg;
1975            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
1976        }
1977    }
1978
1979    @Override
1980    public int[] getPackageGids(String packageName) {
1981        // reader
1982        synchronized (mPackages) {
1983            PackageParser.Package p = mPackages.get(packageName);
1984            if (DEBUG_PACKAGE_INFO)
1985                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
1986            if (p != null) {
1987                final PackageSetting ps = (PackageSetting)p.mExtras;
1988                return ps.getGids();
1989            }
1990        }
1991        // stupid thing to indicate an error.
1992        return new int[0];
1993    }
1994
1995    static final PermissionInfo generatePermissionInfo(
1996            BasePermission bp, int flags) {
1997        if (bp.perm != null) {
1998            return PackageParser.generatePermissionInfo(bp.perm, flags);
1999        }
2000        PermissionInfo pi = new PermissionInfo();
2001        pi.name = bp.name;
2002        pi.packageName = bp.sourcePackage;
2003        pi.nonLocalizedLabel = bp.name;
2004        pi.protectionLevel = bp.protectionLevel;
2005        return pi;
2006    }
2007
2008    @Override
2009    public PermissionInfo getPermissionInfo(String name, int flags) {
2010        // reader
2011        synchronized (mPackages) {
2012            final BasePermission p = mSettings.mPermissions.get(name);
2013            if (p != null) {
2014                return generatePermissionInfo(p, flags);
2015            }
2016            return null;
2017        }
2018    }
2019
2020    @Override
2021    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2022        // reader
2023        synchronized (mPackages) {
2024            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2025            for (BasePermission p : mSettings.mPermissions.values()) {
2026                if (group == null) {
2027                    if (p.perm == null || p.perm.info.group == null) {
2028                        out.add(generatePermissionInfo(p, flags));
2029                    }
2030                } else {
2031                    if (p.perm != null && group.equals(p.perm.info.group)) {
2032                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2033                    }
2034                }
2035            }
2036
2037            if (out.size() > 0) {
2038                return out;
2039            }
2040            return mPermissionGroups.containsKey(group) ? out : null;
2041        }
2042    }
2043
2044    @Override
2045    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2046        // reader
2047        synchronized (mPackages) {
2048            return PackageParser.generatePermissionGroupInfo(
2049                    mPermissionGroups.get(name), flags);
2050        }
2051    }
2052
2053    @Override
2054    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2055        // reader
2056        synchronized (mPackages) {
2057            final int N = mPermissionGroups.size();
2058            ArrayList<PermissionGroupInfo> out
2059                    = new ArrayList<PermissionGroupInfo>(N);
2060            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2061                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2062            }
2063            return out;
2064        }
2065    }
2066
2067    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2068            int userId) {
2069        if (!sUserManager.exists(userId)) return null;
2070        PackageSetting ps = mSettings.mPackages.get(packageName);
2071        if (ps != null) {
2072            if (ps.pkg == null) {
2073                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2074                        flags, userId);
2075                if (pInfo != null) {
2076                    return pInfo.applicationInfo;
2077                }
2078                return null;
2079            }
2080            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2081                    ps.readUserState(userId), userId);
2082        }
2083        return null;
2084    }
2085
2086    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2087            int userId) {
2088        if (!sUserManager.exists(userId)) return null;
2089        PackageSetting ps = mSettings.mPackages.get(packageName);
2090        if (ps != null) {
2091            PackageParser.Package pkg = ps.pkg;
2092            if (pkg == null) {
2093                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2094                    return null;
2095                }
2096                // Only data remains, so we aren't worried about code paths
2097                pkg = new PackageParser.Package(packageName);
2098                pkg.applicationInfo.packageName = packageName;
2099                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2100                pkg.applicationInfo.privateFlags = ps.pkgPrivateFlags;
2101                pkg.applicationInfo.dataDir =
2102                        getDataPathForPackage(packageName, 0).getPath();
2103                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2104                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2105            }
2106            return generatePackageInfo(pkg, flags, userId);
2107        }
2108        return null;
2109    }
2110
2111    @Override
2112    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2113        if (!sUserManager.exists(userId)) return null;
2114        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2115        // writer
2116        synchronized (mPackages) {
2117            PackageParser.Package p = mPackages.get(packageName);
2118            if (DEBUG_PACKAGE_INFO) Log.v(
2119                    TAG, "getApplicationInfo " + packageName
2120                    + ": " + p);
2121            if (p != null) {
2122                PackageSetting ps = mSettings.mPackages.get(packageName);
2123                if (ps == null) return null;
2124                // Note: isEnabledLP() does not apply here - always return info
2125                return PackageParser.generateApplicationInfo(
2126                        p, flags, ps.readUserState(userId), userId);
2127            }
2128            if ("android".equals(packageName)||"system".equals(packageName)) {
2129                return mAndroidApplication;
2130            }
2131            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2132                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2133            }
2134        }
2135        return null;
2136    }
2137
2138
2139    @Override
2140    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2141        mContext.enforceCallingOrSelfPermission(
2142                android.Manifest.permission.CLEAR_APP_CACHE, null);
2143        // Queue up an async operation since clearing cache may take a little while.
2144        mHandler.post(new Runnable() {
2145            public void run() {
2146                mHandler.removeCallbacks(this);
2147                int retCode = -1;
2148                synchronized (mInstallLock) {
2149                    retCode = mInstaller.freeCache(freeStorageSize);
2150                    if (retCode < 0) {
2151                        Slog.w(TAG, "Couldn't clear application caches");
2152                    }
2153                }
2154                if (observer != null) {
2155                    try {
2156                        observer.onRemoveCompleted(null, (retCode >= 0));
2157                    } catch (RemoteException e) {
2158                        Slog.w(TAG, "RemoveException when invoking call back");
2159                    }
2160                }
2161            }
2162        });
2163    }
2164
2165    @Override
2166    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2167        mContext.enforceCallingOrSelfPermission(
2168                android.Manifest.permission.CLEAR_APP_CACHE, null);
2169        // Queue up an async operation since clearing cache may take a little while.
2170        mHandler.post(new Runnable() {
2171            public void run() {
2172                mHandler.removeCallbacks(this);
2173                int retCode = -1;
2174                synchronized (mInstallLock) {
2175                    retCode = mInstaller.freeCache(freeStorageSize);
2176                    if (retCode < 0) {
2177                        Slog.w(TAG, "Couldn't clear application caches");
2178                    }
2179                }
2180                if(pi != null) {
2181                    try {
2182                        // Callback via pending intent
2183                        int code = (retCode >= 0) ? 1 : 0;
2184                        pi.sendIntent(null, code, null,
2185                                null, null);
2186                    } catch (SendIntentException e1) {
2187                        Slog.i(TAG, "Failed to send pending intent");
2188                    }
2189                }
2190            }
2191        });
2192    }
2193
2194    void freeStorage(long freeStorageSize) throws IOException {
2195        synchronized (mInstallLock) {
2196            if (mInstaller.freeCache(freeStorageSize) < 0) {
2197                throw new IOException("Failed to free enough space");
2198            }
2199        }
2200    }
2201
2202    @Override
2203    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2204        if (!sUserManager.exists(userId)) return null;
2205        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2206        synchronized (mPackages) {
2207            PackageParser.Activity a = mActivities.mActivities.get(component);
2208
2209            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2210            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2211                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2212                if (ps == null) return null;
2213                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2214                        userId);
2215            }
2216            if (mResolveComponentName.equals(component)) {
2217                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2218                        new PackageUserState(), userId);
2219            }
2220        }
2221        return null;
2222    }
2223
2224    @Override
2225    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2226            String resolvedType) {
2227        synchronized (mPackages) {
2228            PackageParser.Activity a = mActivities.mActivities.get(component);
2229            if (a == null) {
2230                return false;
2231            }
2232            for (int i=0; i<a.intents.size(); i++) {
2233                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2234                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2235                    return true;
2236                }
2237            }
2238            return false;
2239        }
2240    }
2241
2242    @Override
2243    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2244        if (!sUserManager.exists(userId)) return null;
2245        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2246        synchronized (mPackages) {
2247            PackageParser.Activity a = mReceivers.mActivities.get(component);
2248            if (DEBUG_PACKAGE_INFO) Log.v(
2249                TAG, "getReceiverInfo " + component + ": " + a);
2250            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2251                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2252                if (ps == null) return null;
2253                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2254                        userId);
2255            }
2256        }
2257        return null;
2258    }
2259
2260    @Override
2261    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2262        if (!sUserManager.exists(userId)) return null;
2263        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2264        synchronized (mPackages) {
2265            PackageParser.Service s = mServices.mServices.get(component);
2266            if (DEBUG_PACKAGE_INFO) Log.v(
2267                TAG, "getServiceInfo " + component + ": " + s);
2268            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2269                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2270                if (ps == null) return null;
2271                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2272                        userId);
2273            }
2274        }
2275        return null;
2276    }
2277
2278    @Override
2279    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2280        if (!sUserManager.exists(userId)) return null;
2281        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2282        synchronized (mPackages) {
2283            PackageParser.Provider p = mProviders.mProviders.get(component);
2284            if (DEBUG_PACKAGE_INFO) Log.v(
2285                TAG, "getProviderInfo " + component + ": " + p);
2286            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2287                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2288                if (ps == null) return null;
2289                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2290                        userId);
2291            }
2292        }
2293        return null;
2294    }
2295
2296    @Override
2297    public String[] getSystemSharedLibraryNames() {
2298        Set<String> libSet;
2299        synchronized (mPackages) {
2300            libSet = mSharedLibraries.keySet();
2301            int size = libSet.size();
2302            if (size > 0) {
2303                String[] libs = new String[size];
2304                libSet.toArray(libs);
2305                return libs;
2306            }
2307        }
2308        return null;
2309    }
2310
2311    @Override
2312    public FeatureInfo[] getSystemAvailableFeatures() {
2313        Collection<FeatureInfo> featSet;
2314        synchronized (mPackages) {
2315            featSet = mAvailableFeatures.values();
2316            int size = featSet.size();
2317            if (size > 0) {
2318                FeatureInfo[] features = new FeatureInfo[size+1];
2319                featSet.toArray(features);
2320                FeatureInfo fi = new FeatureInfo();
2321                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2322                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2323                features[size] = fi;
2324                return features;
2325            }
2326        }
2327        return null;
2328    }
2329
2330    @Override
2331    public boolean hasSystemFeature(String name) {
2332        synchronized (mPackages) {
2333            return mAvailableFeatures.containsKey(name);
2334        }
2335    }
2336
2337    private void checkValidCaller(int uid, int userId) {
2338        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2339            return;
2340
2341        throw new SecurityException("Caller uid=" + uid
2342                + " is not privileged to communicate with user=" + userId);
2343    }
2344
2345    @Override
2346    public int checkPermission(String permName, String pkgName) {
2347        synchronized (mPackages) {
2348            PackageParser.Package p = mPackages.get(pkgName);
2349            if (p != null && p.mExtras != null) {
2350                PackageSetting ps = (PackageSetting)p.mExtras;
2351                if (ps.sharedUser != null) {
2352                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2353                        return PackageManager.PERMISSION_GRANTED;
2354                    }
2355                } else if (ps.grantedPermissions.contains(permName)) {
2356                    return PackageManager.PERMISSION_GRANTED;
2357                }
2358            }
2359        }
2360        return PackageManager.PERMISSION_DENIED;
2361    }
2362
2363    @Override
2364    public int checkUidPermission(String permName, int uid) {
2365        synchronized (mPackages) {
2366            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2367            if (obj != null) {
2368                GrantedPermissions gp = (GrantedPermissions)obj;
2369                if (gp.grantedPermissions.contains(permName)) {
2370                    return PackageManager.PERMISSION_GRANTED;
2371                }
2372            } else {
2373                HashSet<String> perms = mSystemPermissions.get(uid);
2374                if (perms != null && perms.contains(permName)) {
2375                    return PackageManager.PERMISSION_GRANTED;
2376                }
2377            }
2378        }
2379        return PackageManager.PERMISSION_DENIED;
2380    }
2381
2382    /**
2383     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2384     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2385     * @param checkShell TODO(yamasani):
2386     * @param message the message to log on security exception
2387     */
2388    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2389            boolean checkShell, String message) {
2390        if (userId < 0) {
2391            throw new IllegalArgumentException("Invalid userId " + userId);
2392        }
2393        if (checkShell) {
2394            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2395        }
2396        if (userId == UserHandle.getUserId(callingUid)) return;
2397        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2398            if (requireFullPermission) {
2399                mContext.enforceCallingOrSelfPermission(
2400                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2401            } else {
2402                try {
2403                    mContext.enforceCallingOrSelfPermission(
2404                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2405                } catch (SecurityException se) {
2406                    mContext.enforceCallingOrSelfPermission(
2407                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2408                }
2409            }
2410        }
2411    }
2412
2413    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2414        if (callingUid == Process.SHELL_UID) {
2415            if (userHandle >= 0
2416                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2417                throw new SecurityException("Shell does not have permission to access user "
2418                        + userHandle);
2419            } else if (userHandle < 0) {
2420                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2421                        + Debug.getCallers(3));
2422            }
2423        }
2424    }
2425
2426    private BasePermission findPermissionTreeLP(String permName) {
2427        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2428            if (permName.startsWith(bp.name) &&
2429                    permName.length() > bp.name.length() &&
2430                    permName.charAt(bp.name.length()) == '.') {
2431                return bp;
2432            }
2433        }
2434        return null;
2435    }
2436
2437    private BasePermission checkPermissionTreeLP(String permName) {
2438        if (permName != null) {
2439            BasePermission bp = findPermissionTreeLP(permName);
2440            if (bp != null) {
2441                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2442                    return bp;
2443                }
2444                throw new SecurityException("Calling uid "
2445                        + Binder.getCallingUid()
2446                        + " is not allowed to add to permission tree "
2447                        + bp.name + " owned by uid " + bp.uid);
2448            }
2449        }
2450        throw new SecurityException("No permission tree found for " + permName);
2451    }
2452
2453    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2454        if (s1 == null) {
2455            return s2 == null;
2456        }
2457        if (s2 == null) {
2458            return false;
2459        }
2460        if (s1.getClass() != s2.getClass()) {
2461            return false;
2462        }
2463        return s1.equals(s2);
2464    }
2465
2466    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2467        if (pi1.icon != pi2.icon) return false;
2468        if (pi1.logo != pi2.logo) return false;
2469        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2470        if (!compareStrings(pi1.name, pi2.name)) return false;
2471        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2472        // We'll take care of setting this one.
2473        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2474        // These are not currently stored in settings.
2475        //if (!compareStrings(pi1.group, pi2.group)) return false;
2476        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2477        //if (pi1.labelRes != pi2.labelRes) return false;
2478        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2479        return true;
2480    }
2481
2482    int permissionInfoFootprint(PermissionInfo info) {
2483        int size = info.name.length();
2484        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2485        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2486        return size;
2487    }
2488
2489    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2490        int size = 0;
2491        for (BasePermission perm : mSettings.mPermissions.values()) {
2492            if (perm.uid == tree.uid) {
2493                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2494            }
2495        }
2496        return size;
2497    }
2498
2499    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2500        // We calculate the max size of permissions defined by this uid and throw
2501        // if that plus the size of 'info' would exceed our stated maximum.
2502        if (tree.uid != Process.SYSTEM_UID) {
2503            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2504            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2505                throw new SecurityException("Permission tree size cap exceeded");
2506            }
2507        }
2508    }
2509
2510    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2511        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2512            throw new SecurityException("Label must be specified in permission");
2513        }
2514        BasePermission tree = checkPermissionTreeLP(info.name);
2515        BasePermission bp = mSettings.mPermissions.get(info.name);
2516        boolean added = bp == null;
2517        boolean changed = true;
2518        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2519        if (added) {
2520            enforcePermissionCapLocked(info, tree);
2521            bp = new BasePermission(info.name, tree.sourcePackage,
2522                    BasePermission.TYPE_DYNAMIC);
2523        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2524            throw new SecurityException(
2525                    "Not allowed to modify non-dynamic permission "
2526                    + info.name);
2527        } else {
2528            if (bp.protectionLevel == fixedLevel
2529                    && bp.perm.owner.equals(tree.perm.owner)
2530                    && bp.uid == tree.uid
2531                    && comparePermissionInfos(bp.perm.info, info)) {
2532                changed = false;
2533            }
2534        }
2535        bp.protectionLevel = fixedLevel;
2536        info = new PermissionInfo(info);
2537        info.protectionLevel = fixedLevel;
2538        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2539        bp.perm.info.packageName = tree.perm.info.packageName;
2540        bp.uid = tree.uid;
2541        if (added) {
2542            mSettings.mPermissions.put(info.name, bp);
2543        }
2544        if (changed) {
2545            if (!async) {
2546                mSettings.writeLPr();
2547            } else {
2548                scheduleWriteSettingsLocked();
2549            }
2550        }
2551        return added;
2552    }
2553
2554    @Override
2555    public boolean addPermission(PermissionInfo info) {
2556        synchronized (mPackages) {
2557            return addPermissionLocked(info, false);
2558        }
2559    }
2560
2561    @Override
2562    public boolean addPermissionAsync(PermissionInfo info) {
2563        synchronized (mPackages) {
2564            return addPermissionLocked(info, true);
2565        }
2566    }
2567
2568    @Override
2569    public void removePermission(String name) {
2570        synchronized (mPackages) {
2571            checkPermissionTreeLP(name);
2572            BasePermission bp = mSettings.mPermissions.get(name);
2573            if (bp != null) {
2574                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2575                    throw new SecurityException(
2576                            "Not allowed to modify non-dynamic permission "
2577                            + name);
2578                }
2579                mSettings.mPermissions.remove(name);
2580                mSettings.writeLPr();
2581            }
2582        }
2583    }
2584
2585    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2586        int index = pkg.requestedPermissions.indexOf(bp.name);
2587        if (index == -1) {
2588            throw new SecurityException("Package " + pkg.packageName
2589                    + " has not requested permission " + bp.name);
2590        }
2591        boolean isNormal =
2592                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2593                        == PermissionInfo.PROTECTION_NORMAL);
2594        boolean isDangerous =
2595                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2596                        == PermissionInfo.PROTECTION_DANGEROUS);
2597        boolean isDevelopment =
2598                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2599
2600        if (!isNormal && !isDangerous && !isDevelopment) {
2601            throw new SecurityException("Permission " + bp.name
2602                    + " is not a changeable permission type");
2603        }
2604
2605        if (isNormal || isDangerous) {
2606            if (pkg.requestedPermissionsRequired.get(index)) {
2607                throw new SecurityException("Can't change " + bp.name
2608                        + ". It is required by the application");
2609            }
2610        }
2611    }
2612
2613    @Override
2614    public void grantPermission(String packageName, String permissionName) {
2615        mContext.enforceCallingOrSelfPermission(
2616                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2617        synchronized (mPackages) {
2618            final PackageParser.Package pkg = mPackages.get(packageName);
2619            if (pkg == null) {
2620                throw new IllegalArgumentException("Unknown package: " + packageName);
2621            }
2622            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2623            if (bp == null) {
2624                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2625            }
2626
2627            checkGrantRevokePermissions(pkg, bp);
2628
2629            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2630            if (ps == null) {
2631                return;
2632            }
2633            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2634            if (gp.grantedPermissions.add(permissionName)) {
2635                if (ps.haveGids) {
2636                    gp.gids = appendInts(gp.gids, bp.gids);
2637                }
2638                mSettings.writeLPr();
2639            }
2640        }
2641    }
2642
2643    @Override
2644    public void revokePermission(String packageName, String permissionName) {
2645        int changedAppId = -1;
2646
2647        synchronized (mPackages) {
2648            final PackageParser.Package pkg = mPackages.get(packageName);
2649            if (pkg == null) {
2650                throw new IllegalArgumentException("Unknown package: " + packageName);
2651            }
2652            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2653                mContext.enforceCallingOrSelfPermission(
2654                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2655            }
2656            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2657            if (bp == null) {
2658                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2659            }
2660
2661            checkGrantRevokePermissions(pkg, bp);
2662
2663            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2664            if (ps == null) {
2665                return;
2666            }
2667            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2668            if (gp.grantedPermissions.remove(permissionName)) {
2669                gp.grantedPermissions.remove(permissionName);
2670                if (ps.haveGids) {
2671                    gp.gids = removeInts(gp.gids, bp.gids);
2672                }
2673                mSettings.writeLPr();
2674                changedAppId = ps.appId;
2675            }
2676        }
2677
2678        if (changedAppId >= 0) {
2679            // We changed the perm on someone, kill its processes.
2680            IActivityManager am = ActivityManagerNative.getDefault();
2681            if (am != null) {
2682                final int callingUserId = UserHandle.getCallingUserId();
2683                final long ident = Binder.clearCallingIdentity();
2684                try {
2685                    //XXX we should only revoke for the calling user's app permissions,
2686                    // but for now we impact all users.
2687                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2688                    //        "revoke " + permissionName);
2689                    int[] users = sUserManager.getUserIds();
2690                    for (int user : users) {
2691                        am.killUid(UserHandle.getUid(user, changedAppId),
2692                                "revoke " + permissionName);
2693                    }
2694                } catch (RemoteException e) {
2695                } finally {
2696                    Binder.restoreCallingIdentity(ident);
2697                }
2698            }
2699        }
2700    }
2701
2702    @Override
2703    public boolean isProtectedBroadcast(String actionName) {
2704        synchronized (mPackages) {
2705            return mProtectedBroadcasts.contains(actionName);
2706        }
2707    }
2708
2709    @Override
2710    public int checkSignatures(String pkg1, String pkg2) {
2711        synchronized (mPackages) {
2712            final PackageParser.Package p1 = mPackages.get(pkg1);
2713            final PackageParser.Package p2 = mPackages.get(pkg2);
2714            if (p1 == null || p1.mExtras == null
2715                    || p2 == null || p2.mExtras == null) {
2716                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2717            }
2718            return compareSignatures(p1.mSignatures, p2.mSignatures);
2719        }
2720    }
2721
2722    @Override
2723    public int checkUidSignatures(int uid1, int uid2) {
2724        // Map to base uids.
2725        uid1 = UserHandle.getAppId(uid1);
2726        uid2 = UserHandle.getAppId(uid2);
2727        // reader
2728        synchronized (mPackages) {
2729            Signature[] s1;
2730            Signature[] s2;
2731            Object obj = mSettings.getUserIdLPr(uid1);
2732            if (obj != null) {
2733                if (obj instanceof SharedUserSetting) {
2734                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2735                } else if (obj instanceof PackageSetting) {
2736                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2737                } else {
2738                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2739                }
2740            } else {
2741                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2742            }
2743            obj = mSettings.getUserIdLPr(uid2);
2744            if (obj != null) {
2745                if (obj instanceof SharedUserSetting) {
2746                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2747                } else if (obj instanceof PackageSetting) {
2748                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2749                } else {
2750                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2751                }
2752            } else {
2753                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2754            }
2755            return compareSignatures(s1, s2);
2756        }
2757    }
2758
2759    /**
2760     * Compares two sets of signatures. Returns:
2761     * <br />
2762     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2763     * <br />
2764     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2765     * <br />
2766     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2767     * <br />
2768     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2769     * <br />
2770     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2771     */
2772    static int compareSignatures(Signature[] s1, Signature[] s2) {
2773        if (s1 == null) {
2774            return s2 == null
2775                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2776                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2777        }
2778
2779        if (s2 == null) {
2780            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2781        }
2782
2783        if (s1.length != s2.length) {
2784            return PackageManager.SIGNATURE_NO_MATCH;
2785        }
2786
2787        // Since both signature sets are of size 1, we can compare without HashSets.
2788        if (s1.length == 1) {
2789            return s1[0].equals(s2[0]) ?
2790                    PackageManager.SIGNATURE_MATCH :
2791                    PackageManager.SIGNATURE_NO_MATCH;
2792        }
2793
2794        HashSet<Signature> set1 = new HashSet<Signature>();
2795        for (Signature sig : s1) {
2796            set1.add(sig);
2797        }
2798        HashSet<Signature> set2 = new HashSet<Signature>();
2799        for (Signature sig : s2) {
2800            set2.add(sig);
2801        }
2802        // Make sure s2 contains all signatures in s1.
2803        if (set1.equals(set2)) {
2804            return PackageManager.SIGNATURE_MATCH;
2805        }
2806        return PackageManager.SIGNATURE_NO_MATCH;
2807    }
2808
2809    /**
2810     * If the database version for this type of package (internal storage or
2811     * external storage) is less than the version where package signatures
2812     * were updated, return true.
2813     */
2814    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2815        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2816                DatabaseVersion.SIGNATURE_END_ENTITY))
2817                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2818                        DatabaseVersion.SIGNATURE_END_ENTITY));
2819    }
2820
2821    /**
2822     * Used for backward compatibility to make sure any packages with
2823     * certificate chains get upgraded to the new style. {@code existingSigs}
2824     * will be in the old format (since they were stored on disk from before the
2825     * system upgrade) and {@code scannedSigs} will be in the newer format.
2826     */
2827    private int compareSignaturesCompat(PackageSignatures existingSigs,
2828            PackageParser.Package scannedPkg) {
2829        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2830            return PackageManager.SIGNATURE_NO_MATCH;
2831        }
2832
2833        HashSet<Signature> existingSet = new HashSet<Signature>();
2834        for (Signature sig : existingSigs.mSignatures) {
2835            existingSet.add(sig);
2836        }
2837        HashSet<Signature> scannedCompatSet = new HashSet<Signature>();
2838        for (Signature sig : scannedPkg.mSignatures) {
2839            try {
2840                Signature[] chainSignatures = sig.getChainSignatures();
2841                for (Signature chainSig : chainSignatures) {
2842                    scannedCompatSet.add(chainSig);
2843                }
2844            } catch (CertificateEncodingException e) {
2845                scannedCompatSet.add(sig);
2846            }
2847        }
2848        /*
2849         * Make sure the expanded scanned set contains all signatures in the
2850         * existing one.
2851         */
2852        if (scannedCompatSet.equals(existingSet)) {
2853            // Migrate the old signatures to the new scheme.
2854            existingSigs.assignSignatures(scannedPkg.mSignatures);
2855            // The new KeySets will be re-added later in the scanning process.
2856            synchronized (mPackages) {
2857                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2858            }
2859            return PackageManager.SIGNATURE_MATCH;
2860        }
2861        return PackageManager.SIGNATURE_NO_MATCH;
2862    }
2863
2864    @Override
2865    public String[] getPackagesForUid(int uid) {
2866        uid = UserHandle.getAppId(uid);
2867        // reader
2868        synchronized (mPackages) {
2869            Object obj = mSettings.getUserIdLPr(uid);
2870            if (obj instanceof SharedUserSetting) {
2871                final SharedUserSetting sus = (SharedUserSetting) obj;
2872                final int N = sus.packages.size();
2873                final String[] res = new String[N];
2874                final Iterator<PackageSetting> it = sus.packages.iterator();
2875                int i = 0;
2876                while (it.hasNext()) {
2877                    res[i++] = it.next().name;
2878                }
2879                return res;
2880            } else if (obj instanceof PackageSetting) {
2881                final PackageSetting ps = (PackageSetting) obj;
2882                return new String[] { ps.name };
2883            }
2884        }
2885        return null;
2886    }
2887
2888    @Override
2889    public String getNameForUid(int uid) {
2890        // reader
2891        synchronized (mPackages) {
2892            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2893            if (obj instanceof SharedUserSetting) {
2894                final SharedUserSetting sus = (SharedUserSetting) obj;
2895                return sus.name + ":" + sus.userId;
2896            } else if (obj instanceof PackageSetting) {
2897                final PackageSetting ps = (PackageSetting) obj;
2898                return ps.name;
2899            }
2900        }
2901        return null;
2902    }
2903
2904    @Override
2905    public int getUidForSharedUser(String sharedUserName) {
2906        if(sharedUserName == null) {
2907            return -1;
2908        }
2909        // reader
2910        synchronized (mPackages) {
2911            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, 0, false);
2912            if (suid == null) {
2913                return -1;
2914            }
2915            return suid.userId;
2916        }
2917    }
2918
2919    @Override
2920    public int getFlagsForUid(int uid) {
2921        synchronized (mPackages) {
2922            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2923            if (obj instanceof SharedUserSetting) {
2924                final SharedUserSetting sus = (SharedUserSetting) obj;
2925                return sus.pkgFlags;
2926            } else if (obj instanceof PackageSetting) {
2927                final PackageSetting ps = (PackageSetting) obj;
2928                return ps.pkgFlags;
2929            }
2930        }
2931        return 0;
2932    }
2933
2934    @Override
2935    public int getPrivateFlagsForUid(int uid) {
2936        synchronized (mPackages) {
2937            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2938            if (obj instanceof SharedUserSetting) {
2939                final SharedUserSetting sus = (SharedUserSetting) obj;
2940                return sus.pkgPrivateFlags;
2941            } else if (obj instanceof PackageSetting) {
2942                final PackageSetting ps = (PackageSetting) obj;
2943                return ps.pkgPrivateFlags;
2944            }
2945        }
2946        return 0;
2947    }
2948
2949    @Override
2950    public boolean isUidPrivileged(int uid) {
2951        uid = UserHandle.getAppId(uid);
2952        // reader
2953        synchronized (mPackages) {
2954            Object obj = mSettings.getUserIdLPr(uid);
2955            if (obj instanceof SharedUserSetting) {
2956                final SharedUserSetting sus = (SharedUserSetting) obj;
2957                final Iterator<PackageSetting> it = sus.packages.iterator();
2958                while (it.hasNext()) {
2959                    if (it.next().isPrivileged()) {
2960                        return true;
2961                    }
2962                }
2963            } else if (obj instanceof PackageSetting) {
2964                final PackageSetting ps = (PackageSetting) obj;
2965                return ps.isPrivileged();
2966            }
2967        }
2968        return false;
2969    }
2970
2971    @Override
2972    public String[] getAppOpPermissionPackages(String permissionName) {
2973        synchronized (mPackages) {
2974            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
2975            if (pkgs == null) {
2976                return null;
2977            }
2978            return pkgs.toArray(new String[pkgs.size()]);
2979        }
2980    }
2981
2982    @Override
2983    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
2984            int flags, int userId) {
2985        if (!sUserManager.exists(userId)) return null;
2986        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
2987        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2988        return chooseBestActivity(intent, resolvedType, flags, query, userId);
2989    }
2990
2991    @Override
2992    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
2993            IntentFilter filter, int match, ComponentName activity) {
2994        final int userId = UserHandle.getCallingUserId();
2995        if (DEBUG_PREFERRED) {
2996            Log.v(TAG, "setLastChosenActivity intent=" + intent
2997                + " resolvedType=" + resolvedType
2998                + " flags=" + flags
2999                + " filter=" + filter
3000                + " match=" + match
3001                + " activity=" + activity);
3002            filter.dump(new PrintStreamPrinter(System.out), "    ");
3003        }
3004        intent.setComponent(null);
3005        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3006        // Find any earlier preferred or last chosen entries and nuke them
3007        findPreferredActivity(intent, resolvedType,
3008                flags, query, 0, false, true, false, userId);
3009        // Add the new activity as the last chosen for this filter
3010        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3011                "Setting last chosen");
3012    }
3013
3014    @Override
3015    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3016        final int userId = UserHandle.getCallingUserId();
3017        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3018        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3019        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3020                false, false, false, userId);
3021    }
3022
3023    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3024            int flags, List<ResolveInfo> query, int userId) {
3025        if (query != null) {
3026            final int N = query.size();
3027            if (N == 1) {
3028                return query.get(0);
3029            } else if (N > 1) {
3030                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3031                // If there is more than one activity with the same priority,
3032                // then let the user decide between them.
3033                ResolveInfo r0 = query.get(0);
3034                ResolveInfo r1 = query.get(1);
3035                if (DEBUG_INTENT_MATCHING || debug) {
3036                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3037                            + r1.activityInfo.name + "=" + r1.priority);
3038                }
3039                // If the first activity has a higher priority, or a different
3040                // default, then it is always desireable to pick it.
3041                if (r0.priority != r1.priority
3042                        || r0.preferredOrder != r1.preferredOrder
3043                        || r0.isDefault != r1.isDefault) {
3044                    return query.get(0);
3045                }
3046                // If we have saved a preference for a preferred activity for
3047                // this Intent, use that.
3048                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3049                        flags, query, r0.priority, true, false, debug, userId);
3050                if (ri != null) {
3051                    return ri;
3052                }
3053                if (userId != 0) {
3054                    ri = new ResolveInfo(mResolveInfo);
3055                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3056                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3057                            ri.activityInfo.applicationInfo);
3058                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3059                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3060                    return ri;
3061                }
3062                return mResolveInfo;
3063            }
3064        }
3065        return null;
3066    }
3067
3068    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3069            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3070        final int N = query.size();
3071        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3072                .get(userId);
3073        // Get the list of persistent preferred activities that handle the intent
3074        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3075        List<PersistentPreferredActivity> pprefs = ppir != null
3076                ? ppir.queryIntent(intent, resolvedType,
3077                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3078                : null;
3079        if (pprefs != null && pprefs.size() > 0) {
3080            final int M = pprefs.size();
3081            for (int i=0; i<M; i++) {
3082                final PersistentPreferredActivity ppa = pprefs.get(i);
3083                if (DEBUG_PREFERRED || debug) {
3084                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3085                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3086                            + "\n  component=" + ppa.mComponent);
3087                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3088                }
3089                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3090                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3091                if (DEBUG_PREFERRED || debug) {
3092                    Slog.v(TAG, "Found persistent preferred activity:");
3093                    if (ai != null) {
3094                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3095                    } else {
3096                        Slog.v(TAG, "  null");
3097                    }
3098                }
3099                if (ai == null) {
3100                    // This previously registered persistent preferred activity
3101                    // component is no longer known. Ignore it and do NOT remove it.
3102                    continue;
3103                }
3104                for (int j=0; j<N; j++) {
3105                    final ResolveInfo ri = query.get(j);
3106                    if (!ri.activityInfo.applicationInfo.packageName
3107                            .equals(ai.applicationInfo.packageName)) {
3108                        continue;
3109                    }
3110                    if (!ri.activityInfo.name.equals(ai.name)) {
3111                        continue;
3112                    }
3113                    //  Found a persistent preference that can handle the intent.
3114                    if (DEBUG_PREFERRED || debug) {
3115                        Slog.v(TAG, "Returning persistent preferred activity: " +
3116                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3117                    }
3118                    return ri;
3119                }
3120            }
3121        }
3122        return null;
3123    }
3124
3125    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3126            List<ResolveInfo> query, int priority, boolean always,
3127            boolean removeMatches, boolean debug, int userId) {
3128        if (!sUserManager.exists(userId)) return null;
3129        // writer
3130        synchronized (mPackages) {
3131            if (intent.getSelector() != null) {
3132                intent = intent.getSelector();
3133            }
3134            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3135
3136            // Try to find a matching persistent preferred activity.
3137            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3138                    debug, userId);
3139
3140            // If a persistent preferred activity matched, use it.
3141            if (pri != null) {
3142                return pri;
3143            }
3144
3145            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3146            // Get the list of preferred activities that handle the intent
3147            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3148            List<PreferredActivity> prefs = pir != null
3149                    ? pir.queryIntent(intent, resolvedType,
3150                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3151                    : null;
3152            if (prefs != null && prefs.size() > 0) {
3153                boolean changed = false;
3154                try {
3155                    // First figure out how good the original match set is.
3156                    // We will only allow preferred activities that came
3157                    // from the same match quality.
3158                    int match = 0;
3159
3160                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3161
3162                    final int N = query.size();
3163                    for (int j=0; j<N; j++) {
3164                        final ResolveInfo ri = query.get(j);
3165                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3166                                + ": 0x" + Integer.toHexString(match));
3167                        if (ri.match > match) {
3168                            match = ri.match;
3169                        }
3170                    }
3171
3172                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3173                            + Integer.toHexString(match));
3174
3175                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3176                    final int M = prefs.size();
3177                    for (int i=0; i<M; i++) {
3178                        final PreferredActivity pa = prefs.get(i);
3179                        if (DEBUG_PREFERRED || debug) {
3180                            Slog.v(TAG, "Checking PreferredActivity ds="
3181                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3182                                    + "\n  component=" + pa.mPref.mComponent);
3183                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3184                        }
3185                        if (pa.mPref.mMatch != match) {
3186                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3187                                    + Integer.toHexString(pa.mPref.mMatch));
3188                            continue;
3189                        }
3190                        // If it's not an "always" type preferred activity and that's what we're
3191                        // looking for, skip it.
3192                        if (always && !pa.mPref.mAlways) {
3193                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3194                            continue;
3195                        }
3196                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3197                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3198                        if (DEBUG_PREFERRED || debug) {
3199                            Slog.v(TAG, "Found preferred activity:");
3200                            if (ai != null) {
3201                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3202                            } else {
3203                                Slog.v(TAG, "  null");
3204                            }
3205                        }
3206                        if (ai == null) {
3207                            // This previously registered preferred activity
3208                            // component is no longer known.  Most likely an update
3209                            // to the app was installed and in the new version this
3210                            // component no longer exists.  Clean it up by removing
3211                            // it from the preferred activities list, and skip it.
3212                            Slog.w(TAG, "Removing dangling preferred activity: "
3213                                    + pa.mPref.mComponent);
3214                            pir.removeFilter(pa);
3215                            changed = true;
3216                            continue;
3217                        }
3218                        for (int j=0; j<N; j++) {
3219                            final ResolveInfo ri = query.get(j);
3220                            if (!ri.activityInfo.applicationInfo.packageName
3221                                    .equals(ai.applicationInfo.packageName)) {
3222                                continue;
3223                            }
3224                            if (!ri.activityInfo.name.equals(ai.name)) {
3225                                continue;
3226                            }
3227
3228                            if (removeMatches) {
3229                                pir.removeFilter(pa);
3230                                changed = true;
3231                                if (DEBUG_PREFERRED) {
3232                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3233                                }
3234                                break;
3235                            }
3236
3237                            // Okay we found a previously set preferred or last chosen app.
3238                            // If the result set is different from when this
3239                            // was created, we need to clear it and re-ask the
3240                            // user their preference, if we're looking for an "always" type entry.
3241                            if (always && !pa.mPref.sameSet(query, priority)) {
3242                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3243                                        + intent + " type " + resolvedType);
3244                                if (DEBUG_PREFERRED) {
3245                                    Slog.v(TAG, "Removing preferred activity since set changed "
3246                                            + pa.mPref.mComponent);
3247                                }
3248                                pir.removeFilter(pa);
3249                                // Re-add the filter as a "last chosen" entry (!always)
3250                                PreferredActivity lastChosen = new PreferredActivity(
3251                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3252                                pir.addFilter(lastChosen);
3253                                changed = true;
3254                                return null;
3255                            }
3256
3257                            // Yay! Either the set matched or we're looking for the last chosen
3258                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3259                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3260                            return ri;
3261                        }
3262                    }
3263                } finally {
3264                    if (changed) {
3265                        if (DEBUG_PREFERRED) {
3266                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3267                        }
3268                        mSettings.writePackageRestrictionsLPr(userId);
3269                    }
3270                }
3271            }
3272        }
3273        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3274        return null;
3275    }
3276
3277    /*
3278     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3279     */
3280    @Override
3281    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3282            int targetUserId) {
3283        mContext.enforceCallingOrSelfPermission(
3284                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3285        List<CrossProfileIntentFilter> matches =
3286                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3287        if (matches != null) {
3288            int size = matches.size();
3289            for (int i = 0; i < size; i++) {
3290                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3291            }
3292        }
3293        return false;
3294    }
3295
3296    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3297            String resolvedType, int userId) {
3298        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3299        if (resolver != null) {
3300            return resolver.queryIntent(intent, resolvedType, false, userId);
3301        }
3302        return null;
3303    }
3304
3305    @Override
3306    public List<ResolveInfo> queryIntentActivities(Intent intent,
3307            String resolvedType, int flags, int userId) {
3308        if (!sUserManager.exists(userId)) return Collections.emptyList();
3309        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3310        ComponentName comp = intent.getComponent();
3311        if (comp == null) {
3312            if (intent.getSelector() != null) {
3313                intent = intent.getSelector();
3314                comp = intent.getComponent();
3315            }
3316        }
3317
3318        if (comp != null) {
3319            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3320            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3321            if (ai != null) {
3322                final ResolveInfo ri = new ResolveInfo();
3323                ri.activityInfo = ai;
3324                list.add(ri);
3325            }
3326            return list;
3327        }
3328
3329        // reader
3330        synchronized (mPackages) {
3331            final String pkgName = intent.getPackage();
3332            if (pkgName == null) {
3333                List<CrossProfileIntentFilter> matchingFilters =
3334                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3335                // Check for results that need to skip the current profile.
3336                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3337                        resolvedType, flags, userId);
3338                if (resolveInfo != null) {
3339                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3340                    result.add(resolveInfo);
3341                    return result;
3342                }
3343                // Check for cross profile results.
3344                resolveInfo = queryCrossProfileIntents(
3345                        matchingFilters, intent, resolvedType, flags, userId);
3346
3347                // Check for results in the current profile.
3348                List<ResolveInfo> result = mActivities.queryIntent(
3349                        intent, resolvedType, flags, userId);
3350                if (resolveInfo != null) {
3351                    result.add(resolveInfo);
3352                    Collections.sort(result, mResolvePrioritySorter);
3353                }
3354                return result;
3355            }
3356            final PackageParser.Package pkg = mPackages.get(pkgName);
3357            if (pkg != null) {
3358                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3359                        pkg.activities, userId);
3360            }
3361            return new ArrayList<ResolveInfo>();
3362        }
3363    }
3364
3365    private ResolveInfo querySkipCurrentProfileIntents(
3366            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3367            int flags, int sourceUserId) {
3368        if (matchingFilters != null) {
3369            int size = matchingFilters.size();
3370            for (int i = 0; i < size; i ++) {
3371                CrossProfileIntentFilter filter = matchingFilters.get(i);
3372                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3373                    // Checking if there are activities in the target user that can handle the
3374                    // intent.
3375                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3376                            flags, sourceUserId);
3377                    if (resolveInfo != null) {
3378                        return resolveInfo;
3379                    }
3380                }
3381            }
3382        }
3383        return null;
3384    }
3385
3386    // Return matching ResolveInfo if any for skip current profile intent filters.
3387    private ResolveInfo queryCrossProfileIntents(
3388            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3389            int flags, int sourceUserId) {
3390        if (matchingFilters != null) {
3391            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3392            // match the same intent. For performance reasons, it is better not to
3393            // run queryIntent twice for the same userId
3394            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3395            int size = matchingFilters.size();
3396            for (int i = 0; i < size; i++) {
3397                CrossProfileIntentFilter filter = matchingFilters.get(i);
3398                int targetUserId = filter.getTargetUserId();
3399                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3400                        && !alreadyTriedUserIds.get(targetUserId)) {
3401                    // Checking if there are activities in the target user that can handle the
3402                    // intent.
3403                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3404                            flags, sourceUserId);
3405                    if (resolveInfo != null) return resolveInfo;
3406                    alreadyTriedUserIds.put(targetUserId, true);
3407                }
3408            }
3409        }
3410        return null;
3411    }
3412
3413    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3414            String resolvedType, int flags, int sourceUserId) {
3415        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3416                resolvedType, flags, filter.getTargetUserId());
3417        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3418            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3419        }
3420        return null;
3421    }
3422
3423    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3424            int sourceUserId, int targetUserId) {
3425        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3426        String className;
3427        if (targetUserId == UserHandle.USER_OWNER) {
3428            className = FORWARD_INTENT_TO_USER_OWNER;
3429        } else {
3430            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3431        }
3432        ComponentName forwardingActivityComponentName = new ComponentName(
3433                mAndroidApplication.packageName, className);
3434        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3435                sourceUserId);
3436        if (targetUserId == UserHandle.USER_OWNER) {
3437            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3438            forwardingResolveInfo.noResourceId = true;
3439        }
3440        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3441        forwardingResolveInfo.priority = 0;
3442        forwardingResolveInfo.preferredOrder = 0;
3443        forwardingResolveInfo.match = 0;
3444        forwardingResolveInfo.isDefault = true;
3445        forwardingResolveInfo.filter = filter;
3446        forwardingResolveInfo.targetUserId = targetUserId;
3447        return forwardingResolveInfo;
3448    }
3449
3450    @Override
3451    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3452            Intent[] specifics, String[] specificTypes, Intent intent,
3453            String resolvedType, int flags, int userId) {
3454        if (!sUserManager.exists(userId)) return Collections.emptyList();
3455        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3456                false, "query intent activity options");
3457        final String resultsAction = intent.getAction();
3458
3459        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3460                | PackageManager.GET_RESOLVED_FILTER, userId);
3461
3462        if (DEBUG_INTENT_MATCHING) {
3463            Log.v(TAG, "Query " + intent + ": " + results);
3464        }
3465
3466        int specificsPos = 0;
3467        int N;
3468
3469        // todo: note that the algorithm used here is O(N^2).  This
3470        // isn't a problem in our current environment, but if we start running
3471        // into situations where we have more than 5 or 10 matches then this
3472        // should probably be changed to something smarter...
3473
3474        // First we go through and resolve each of the specific items
3475        // that were supplied, taking care of removing any corresponding
3476        // duplicate items in the generic resolve list.
3477        if (specifics != null) {
3478            for (int i=0; i<specifics.length; i++) {
3479                final Intent sintent = specifics[i];
3480                if (sintent == null) {
3481                    continue;
3482                }
3483
3484                if (DEBUG_INTENT_MATCHING) {
3485                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3486                }
3487
3488                String action = sintent.getAction();
3489                if (resultsAction != null && resultsAction.equals(action)) {
3490                    // If this action was explicitly requested, then don't
3491                    // remove things that have it.
3492                    action = null;
3493                }
3494
3495                ResolveInfo ri = null;
3496                ActivityInfo ai = null;
3497
3498                ComponentName comp = sintent.getComponent();
3499                if (comp == null) {
3500                    ri = resolveIntent(
3501                        sintent,
3502                        specificTypes != null ? specificTypes[i] : null,
3503                            flags, userId);
3504                    if (ri == null) {
3505                        continue;
3506                    }
3507                    if (ri == mResolveInfo) {
3508                        // ACK!  Must do something better with this.
3509                    }
3510                    ai = ri.activityInfo;
3511                    comp = new ComponentName(ai.applicationInfo.packageName,
3512                            ai.name);
3513                } else {
3514                    ai = getActivityInfo(comp, flags, userId);
3515                    if (ai == null) {
3516                        continue;
3517                    }
3518                }
3519
3520                // Look for any generic query activities that are duplicates
3521                // of this specific one, and remove them from the results.
3522                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3523                N = results.size();
3524                int j;
3525                for (j=specificsPos; j<N; j++) {
3526                    ResolveInfo sri = results.get(j);
3527                    if ((sri.activityInfo.name.equals(comp.getClassName())
3528                            && sri.activityInfo.applicationInfo.packageName.equals(
3529                                    comp.getPackageName()))
3530                        || (action != null && sri.filter.matchAction(action))) {
3531                        results.remove(j);
3532                        if (DEBUG_INTENT_MATCHING) Log.v(
3533                            TAG, "Removing duplicate item from " + j
3534                            + " due to specific " + specificsPos);
3535                        if (ri == null) {
3536                            ri = sri;
3537                        }
3538                        j--;
3539                        N--;
3540                    }
3541                }
3542
3543                // Add this specific item to its proper place.
3544                if (ri == null) {
3545                    ri = new ResolveInfo();
3546                    ri.activityInfo = ai;
3547                }
3548                results.add(specificsPos, ri);
3549                ri.specificIndex = i;
3550                specificsPos++;
3551            }
3552        }
3553
3554        // Now we go through the remaining generic results and remove any
3555        // duplicate actions that are found here.
3556        N = results.size();
3557        for (int i=specificsPos; i<N-1; i++) {
3558            final ResolveInfo rii = results.get(i);
3559            if (rii.filter == null) {
3560                continue;
3561            }
3562
3563            // Iterate over all of the actions of this result's intent
3564            // filter...  typically this should be just one.
3565            final Iterator<String> it = rii.filter.actionsIterator();
3566            if (it == null) {
3567                continue;
3568            }
3569            while (it.hasNext()) {
3570                final String action = it.next();
3571                if (resultsAction != null && resultsAction.equals(action)) {
3572                    // If this action was explicitly requested, then don't
3573                    // remove things that have it.
3574                    continue;
3575                }
3576                for (int j=i+1; j<N; j++) {
3577                    final ResolveInfo rij = results.get(j);
3578                    if (rij.filter != null && rij.filter.hasAction(action)) {
3579                        results.remove(j);
3580                        if (DEBUG_INTENT_MATCHING) Log.v(
3581                            TAG, "Removing duplicate item from " + j
3582                            + " due to action " + action + " at " + i);
3583                        j--;
3584                        N--;
3585                    }
3586                }
3587            }
3588
3589            // If the caller didn't request filter information, drop it now
3590            // so we don't have to marshall/unmarshall it.
3591            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3592                rii.filter = null;
3593            }
3594        }
3595
3596        // Filter out the caller activity if so requested.
3597        if (caller != null) {
3598            N = results.size();
3599            for (int i=0; i<N; i++) {
3600                ActivityInfo ainfo = results.get(i).activityInfo;
3601                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3602                        && caller.getClassName().equals(ainfo.name)) {
3603                    results.remove(i);
3604                    break;
3605                }
3606            }
3607        }
3608
3609        // If the caller didn't request filter information,
3610        // drop them now so we don't have to
3611        // marshall/unmarshall it.
3612        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3613            N = results.size();
3614            for (int i=0; i<N; i++) {
3615                results.get(i).filter = null;
3616            }
3617        }
3618
3619        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3620        return results;
3621    }
3622
3623    @Override
3624    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3625            int userId) {
3626        if (!sUserManager.exists(userId)) return Collections.emptyList();
3627        ComponentName comp = intent.getComponent();
3628        if (comp == null) {
3629            if (intent.getSelector() != null) {
3630                intent = intent.getSelector();
3631                comp = intent.getComponent();
3632            }
3633        }
3634        if (comp != null) {
3635            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3636            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3637            if (ai != null) {
3638                ResolveInfo ri = new ResolveInfo();
3639                ri.activityInfo = ai;
3640                list.add(ri);
3641            }
3642            return list;
3643        }
3644
3645        // reader
3646        synchronized (mPackages) {
3647            String pkgName = intent.getPackage();
3648            if (pkgName == null) {
3649                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3650            }
3651            final PackageParser.Package pkg = mPackages.get(pkgName);
3652            if (pkg != null) {
3653                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3654                        userId);
3655            }
3656            return null;
3657        }
3658    }
3659
3660    @Override
3661    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3662        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3663        if (!sUserManager.exists(userId)) return null;
3664        if (query != null) {
3665            if (query.size() >= 1) {
3666                // If there is more than one service with the same priority,
3667                // just arbitrarily pick the first one.
3668                return query.get(0);
3669            }
3670        }
3671        return null;
3672    }
3673
3674    @Override
3675    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3676            int userId) {
3677        if (!sUserManager.exists(userId)) return Collections.emptyList();
3678        ComponentName comp = intent.getComponent();
3679        if (comp == null) {
3680            if (intent.getSelector() != null) {
3681                intent = intent.getSelector();
3682                comp = intent.getComponent();
3683            }
3684        }
3685        if (comp != null) {
3686            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3687            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3688            if (si != null) {
3689                final ResolveInfo ri = new ResolveInfo();
3690                ri.serviceInfo = si;
3691                list.add(ri);
3692            }
3693            return list;
3694        }
3695
3696        // reader
3697        synchronized (mPackages) {
3698            String pkgName = intent.getPackage();
3699            if (pkgName == null) {
3700                return mServices.queryIntent(intent, resolvedType, flags, userId);
3701            }
3702            final PackageParser.Package pkg = mPackages.get(pkgName);
3703            if (pkg != null) {
3704                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3705                        userId);
3706            }
3707            return null;
3708        }
3709    }
3710
3711    @Override
3712    public List<ResolveInfo> queryIntentContentProviders(
3713            Intent intent, String resolvedType, int flags, int userId) {
3714        if (!sUserManager.exists(userId)) return Collections.emptyList();
3715        ComponentName comp = intent.getComponent();
3716        if (comp == null) {
3717            if (intent.getSelector() != null) {
3718                intent = intent.getSelector();
3719                comp = intent.getComponent();
3720            }
3721        }
3722        if (comp != null) {
3723            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3724            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3725            if (pi != null) {
3726                final ResolveInfo ri = new ResolveInfo();
3727                ri.providerInfo = pi;
3728                list.add(ri);
3729            }
3730            return list;
3731        }
3732
3733        // reader
3734        synchronized (mPackages) {
3735            String pkgName = intent.getPackage();
3736            if (pkgName == null) {
3737                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3738            }
3739            final PackageParser.Package pkg = mPackages.get(pkgName);
3740            if (pkg != null) {
3741                return mProviders.queryIntentForPackage(
3742                        intent, resolvedType, flags, pkg.providers, userId);
3743            }
3744            return null;
3745        }
3746    }
3747
3748    @Override
3749    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3750        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3751
3752        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3753
3754        // writer
3755        synchronized (mPackages) {
3756            ArrayList<PackageInfo> list;
3757            if (listUninstalled) {
3758                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3759                for (PackageSetting ps : mSettings.mPackages.values()) {
3760                    PackageInfo pi;
3761                    if (ps.pkg != null) {
3762                        pi = generatePackageInfo(ps.pkg, flags, userId);
3763                    } else {
3764                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3765                    }
3766                    if (pi != null) {
3767                        list.add(pi);
3768                    }
3769                }
3770            } else {
3771                list = new ArrayList<PackageInfo>(mPackages.size());
3772                for (PackageParser.Package p : mPackages.values()) {
3773                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3774                    if (pi != null) {
3775                        list.add(pi);
3776                    }
3777                }
3778            }
3779
3780            return new ParceledListSlice<PackageInfo>(list);
3781        }
3782    }
3783
3784    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3785            String[] permissions, boolean[] tmp, int flags, int userId) {
3786        int numMatch = 0;
3787        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3788        for (int i=0; i<permissions.length; i++) {
3789            if (gp.grantedPermissions.contains(permissions[i])) {
3790                tmp[i] = true;
3791                numMatch++;
3792            } else {
3793                tmp[i] = false;
3794            }
3795        }
3796        if (numMatch == 0) {
3797            return;
3798        }
3799        PackageInfo pi;
3800        if (ps.pkg != null) {
3801            pi = generatePackageInfo(ps.pkg, flags, userId);
3802        } else {
3803            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3804        }
3805        // The above might return null in cases of uninstalled apps or install-state
3806        // skew across users/profiles.
3807        if (pi != null) {
3808            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3809                if (numMatch == permissions.length) {
3810                    pi.requestedPermissions = permissions;
3811                } else {
3812                    pi.requestedPermissions = new String[numMatch];
3813                    numMatch = 0;
3814                    for (int i=0; i<permissions.length; i++) {
3815                        if (tmp[i]) {
3816                            pi.requestedPermissions[numMatch] = permissions[i];
3817                            numMatch++;
3818                        }
3819                    }
3820                }
3821            }
3822            list.add(pi);
3823        }
3824    }
3825
3826    @Override
3827    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3828            String[] permissions, int flags, int userId) {
3829        if (!sUserManager.exists(userId)) return null;
3830        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3831
3832        // writer
3833        synchronized (mPackages) {
3834            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3835            boolean[] tmpBools = new boolean[permissions.length];
3836            if (listUninstalled) {
3837                for (PackageSetting ps : mSettings.mPackages.values()) {
3838                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3839                }
3840            } else {
3841                for (PackageParser.Package pkg : mPackages.values()) {
3842                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3843                    if (ps != null) {
3844                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3845                                userId);
3846                    }
3847                }
3848            }
3849
3850            return new ParceledListSlice<PackageInfo>(list);
3851        }
3852    }
3853
3854    @Override
3855    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3856        if (!sUserManager.exists(userId)) return null;
3857        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3858
3859        // writer
3860        synchronized (mPackages) {
3861            ArrayList<ApplicationInfo> list;
3862            if (listUninstalled) {
3863                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3864                for (PackageSetting ps : mSettings.mPackages.values()) {
3865                    ApplicationInfo ai;
3866                    if (ps.pkg != null) {
3867                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3868                                ps.readUserState(userId), userId);
3869                    } else {
3870                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3871                    }
3872                    if (ai != null) {
3873                        list.add(ai);
3874                    }
3875                }
3876            } else {
3877                list = new ArrayList<ApplicationInfo>(mPackages.size());
3878                for (PackageParser.Package p : mPackages.values()) {
3879                    if (p.mExtras != null) {
3880                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3881                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3882                        if (ai != null) {
3883                            list.add(ai);
3884                        }
3885                    }
3886                }
3887            }
3888
3889            return new ParceledListSlice<ApplicationInfo>(list);
3890        }
3891    }
3892
3893    public List<ApplicationInfo> getPersistentApplications(int flags) {
3894        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3895
3896        // reader
3897        synchronized (mPackages) {
3898            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3899            final int userId = UserHandle.getCallingUserId();
3900            while (i.hasNext()) {
3901                final PackageParser.Package p = i.next();
3902                if (p.applicationInfo != null
3903                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3904                        && (!mSafeMode || isSystemApp(p))) {
3905                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3906                    if (ps != null) {
3907                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3908                                ps.readUserState(userId), userId);
3909                        if (ai != null) {
3910                            finalList.add(ai);
3911                        }
3912                    }
3913                }
3914            }
3915        }
3916
3917        return finalList;
3918    }
3919
3920    @Override
3921    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3922        if (!sUserManager.exists(userId)) return null;
3923        // reader
3924        synchronized (mPackages) {
3925            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3926            PackageSetting ps = provider != null
3927                    ? mSettings.mPackages.get(provider.owner.packageName)
3928                    : null;
3929            return ps != null
3930                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3931                    && (!mSafeMode || (provider.info.applicationInfo.flags
3932                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3933                    ? PackageParser.generateProviderInfo(provider, flags,
3934                            ps.readUserState(userId), userId)
3935                    : null;
3936        }
3937    }
3938
3939    /**
3940     * @deprecated
3941     */
3942    @Deprecated
3943    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
3944        // reader
3945        synchronized (mPackages) {
3946            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
3947                    .entrySet().iterator();
3948            final int userId = UserHandle.getCallingUserId();
3949            while (i.hasNext()) {
3950                Map.Entry<String, PackageParser.Provider> entry = i.next();
3951                PackageParser.Provider p = entry.getValue();
3952                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3953
3954                if (ps != null && p.syncable
3955                        && (!mSafeMode || (p.info.applicationInfo.flags
3956                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
3957                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
3958                            ps.readUserState(userId), userId);
3959                    if (info != null) {
3960                        outNames.add(entry.getKey());
3961                        outInfo.add(info);
3962                    }
3963                }
3964            }
3965        }
3966    }
3967
3968    @Override
3969    public List<ProviderInfo> queryContentProviders(String processName,
3970            int uid, int flags) {
3971        ArrayList<ProviderInfo> finalList = null;
3972        // reader
3973        synchronized (mPackages) {
3974            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
3975            final int userId = processName != null ?
3976                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
3977            while (i.hasNext()) {
3978                final PackageParser.Provider p = i.next();
3979                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3980                if (ps != null && p.info.authority != null
3981                        && (processName == null
3982                                || (p.info.processName.equals(processName)
3983                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
3984                        && mSettings.isEnabledLPr(p.info, flags, userId)
3985                        && (!mSafeMode
3986                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
3987                    if (finalList == null) {
3988                        finalList = new ArrayList<ProviderInfo>(3);
3989                    }
3990                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
3991                            ps.readUserState(userId), userId);
3992                    if (info != null) {
3993                        finalList.add(info);
3994                    }
3995                }
3996            }
3997        }
3998
3999        if (finalList != null) {
4000            Collections.sort(finalList, mProviderInitOrderSorter);
4001        }
4002
4003        return finalList;
4004    }
4005
4006    @Override
4007    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4008            int flags) {
4009        // reader
4010        synchronized (mPackages) {
4011            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4012            return PackageParser.generateInstrumentationInfo(i, flags);
4013        }
4014    }
4015
4016    @Override
4017    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4018            int flags) {
4019        ArrayList<InstrumentationInfo> finalList =
4020            new ArrayList<InstrumentationInfo>();
4021
4022        // reader
4023        synchronized (mPackages) {
4024            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4025            while (i.hasNext()) {
4026                final PackageParser.Instrumentation p = i.next();
4027                if (targetPackage == null
4028                        || targetPackage.equals(p.info.targetPackage)) {
4029                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4030                            flags);
4031                    if (ii != null) {
4032                        finalList.add(ii);
4033                    }
4034                }
4035            }
4036        }
4037
4038        return finalList;
4039    }
4040
4041    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4042        HashMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4043        if (overlays == null) {
4044            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4045            return;
4046        }
4047        for (PackageParser.Package opkg : overlays.values()) {
4048            // Not much to do if idmap fails: we already logged the error
4049            // and we certainly don't want to abort installation of pkg simply
4050            // because an overlay didn't fit properly. For these reasons,
4051            // ignore the return value of createIdmapForPackagePairLI.
4052            createIdmapForPackagePairLI(pkg, opkg);
4053        }
4054    }
4055
4056    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4057            PackageParser.Package opkg) {
4058        if (!opkg.mTrustedOverlay) {
4059            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4060                    opkg.baseCodePath + ": overlay not trusted");
4061            return false;
4062        }
4063        HashMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4064        if (overlaySet == null) {
4065            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4066                    opkg.baseCodePath + " but target package has no known overlays");
4067            return false;
4068        }
4069        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4070        // TODO: generate idmap for split APKs
4071        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4072            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4073                    + opkg.baseCodePath);
4074            return false;
4075        }
4076        PackageParser.Package[] overlayArray =
4077            overlaySet.values().toArray(new PackageParser.Package[0]);
4078        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4079            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4080                return p1.mOverlayPriority - p2.mOverlayPriority;
4081            }
4082        };
4083        Arrays.sort(overlayArray, cmp);
4084
4085        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4086        int i = 0;
4087        for (PackageParser.Package p : overlayArray) {
4088            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4089        }
4090        return true;
4091    }
4092
4093    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4094        final File[] files = dir.listFiles();
4095        if (ArrayUtils.isEmpty(files)) {
4096            Log.d(TAG, "No files in app dir " + dir);
4097            return;
4098        }
4099
4100        if (DEBUG_PACKAGE_SCANNING) {
4101            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4102                    + " flags=0x" + Integer.toHexString(parseFlags));
4103        }
4104
4105        for (File file : files) {
4106            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4107                    && !PackageInstallerService.isStageName(file.getName());
4108            if (!isPackage) {
4109                // Ignore entries which are not packages
4110                continue;
4111            }
4112            try {
4113                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4114                        scanFlags, currentTime, null);
4115            } catch (PackageManagerException e) {
4116                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4117
4118                // Delete invalid userdata apps
4119                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4120                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4121                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4122                    if (file.isDirectory()) {
4123                        FileUtils.deleteContents(file);
4124                    }
4125                    file.delete();
4126                }
4127            }
4128        }
4129    }
4130
4131    private static File getSettingsProblemFile() {
4132        File dataDir = Environment.getDataDirectory();
4133        File systemDir = new File(dataDir, "system");
4134        File fname = new File(systemDir, "uiderrors.txt");
4135        return fname;
4136    }
4137
4138    static void reportSettingsProblem(int priority, String msg) {
4139        logCriticalInfo(priority, msg);
4140    }
4141
4142    static void logCriticalInfo(int priority, String msg) {
4143        Slog.println(priority, TAG, msg);
4144        EventLogTags.writePmCriticalInfo(msg);
4145        try {
4146            File fname = getSettingsProblemFile();
4147            FileOutputStream out = new FileOutputStream(fname, true);
4148            PrintWriter pw = new FastPrintWriter(out);
4149            SimpleDateFormat formatter = new SimpleDateFormat();
4150            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4151            pw.println(dateString + ": " + msg);
4152            pw.close();
4153            FileUtils.setPermissions(
4154                    fname.toString(),
4155                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4156                    -1, -1);
4157        } catch (java.io.IOException e) {
4158        }
4159    }
4160
4161    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4162            PackageParser.Package pkg, File srcFile, int parseFlags)
4163            throws PackageManagerException {
4164        if (ps != null
4165                && ps.codePath.equals(srcFile)
4166                && ps.timeStamp == srcFile.lastModified()
4167                && !isCompatSignatureUpdateNeeded(pkg)) {
4168            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4169            if (ps.signatures.mSignatures != null
4170                    && ps.signatures.mSignatures.length != 0
4171                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4172                // Optimization: reuse the existing cached certificates
4173                // if the package appears to be unchanged.
4174                pkg.mSignatures = ps.signatures.mSignatures;
4175                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4176                synchronized (mPackages) {
4177                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4178                }
4179                return;
4180            }
4181
4182            Slog.w(TAG, "PackageSetting for " + ps.name
4183                    + " is missing signatures.  Collecting certs again to recover them.");
4184        } else {
4185            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4186        }
4187
4188        try {
4189            pp.collectCertificates(pkg, parseFlags);
4190            pp.collectManifestDigest(pkg);
4191        } catch (PackageParserException e) {
4192            throw PackageManagerException.from(e);
4193        }
4194    }
4195
4196    /*
4197     *  Scan a package and return the newly parsed package.
4198     *  Returns null in case of errors and the error code is stored in mLastScanError
4199     */
4200    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4201            long currentTime, UserHandle user) throws PackageManagerException {
4202        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4203        parseFlags |= mDefParseFlags;
4204        PackageParser pp = new PackageParser();
4205        pp.setSeparateProcesses(mSeparateProcesses);
4206        pp.setOnlyCoreApps(mOnlyCore);
4207        pp.setDisplayMetrics(mMetrics);
4208
4209        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4210            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4211        }
4212
4213        final PackageParser.Package pkg;
4214        try {
4215            pkg = pp.parsePackage(scanFile, parseFlags);
4216        } catch (PackageParserException e) {
4217            throw PackageManagerException.from(e);
4218        }
4219
4220        PackageSetting ps = null;
4221        PackageSetting updatedPkg;
4222        // reader
4223        synchronized (mPackages) {
4224            // Look to see if we already know about this package.
4225            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4226            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4227                // This package has been renamed to its original name.  Let's
4228                // use that.
4229                ps = mSettings.peekPackageLPr(oldName);
4230            }
4231            // If there was no original package, see one for the real package name.
4232            if (ps == null) {
4233                ps = mSettings.peekPackageLPr(pkg.packageName);
4234            }
4235            // Check to see if this package could be hiding/updating a system
4236            // package.  Must look for it either under the original or real
4237            // package name depending on our state.
4238            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4239            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4240        }
4241        boolean updatedPkgBetter = false;
4242        // First check if this is a system package that may involve an update
4243        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4244            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4245            // it needs to drop FLAG_PRIVILEGED.
4246            if (locationIsPrivileged(scanFile)) {
4247                updatedPkg.pkgPrivateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4248            } else {
4249                updatedPkg.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4250            }
4251
4252            if (ps != null && !ps.codePath.equals(scanFile)) {
4253                // The path has changed from what was last scanned...  check the
4254                // version of the new path against what we have stored to determine
4255                // what to do.
4256                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4257                if (pkg.mVersionCode < ps.versionCode) {
4258                    // The system package has been updated and the code path does not match
4259                    // Ignore entry. Skip it.
4260                    logCriticalInfo(Log.INFO, "Package " + ps.name + " at " + scanFile
4261                            + " ignored: updated version " + ps.versionCode
4262                            + " better than this " + pkg.mVersionCode);
4263                    if (!updatedPkg.codePath.equals(scanFile)) {
4264                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4265                                + ps.name + " changing from " + updatedPkg.codePathString
4266                                + " to " + scanFile);
4267                        updatedPkg.codePath = scanFile;
4268                        updatedPkg.codePathString = scanFile.toString();
4269                        updatedPkg.resourcePath = scanFile;
4270                        updatedPkg.resourcePathString = scanFile.toString();
4271                    }
4272                    updatedPkg.pkg = pkg;
4273                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4274                } else {
4275                    // The current app on the system partition is better than
4276                    // what we have updated to on the data partition; switch
4277                    // back to the system partition version.
4278                    // At this point, its safely assumed that package installation for
4279                    // apps in system partition will go through. If not there won't be a working
4280                    // version of the app
4281                    // writer
4282                    synchronized (mPackages) {
4283                        // Just remove the loaded entries from package lists.
4284                        mPackages.remove(ps.name);
4285                    }
4286
4287                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4288                            + " reverting from " + ps.codePathString
4289                            + ": new version " + pkg.mVersionCode
4290                            + " better than installed " + ps.versionCode);
4291
4292                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4293                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4294                            getAppDexInstructionSets(ps));
4295                    synchronized (mInstallLock) {
4296                        args.cleanUpResourcesLI();
4297                    }
4298                    synchronized (mPackages) {
4299                        mSettings.enableSystemPackageLPw(ps.name);
4300                    }
4301                    updatedPkgBetter = true;
4302                }
4303            }
4304        }
4305
4306        if (updatedPkg != null) {
4307            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4308            // initially
4309            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4310
4311            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4312            // flag set initially
4313            if ((updatedPkg.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0) {
4314                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4315            }
4316        }
4317
4318        // Verify certificates against what was last scanned
4319        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4320
4321        /*
4322         * A new system app appeared, but we already had a non-system one of the
4323         * same name installed earlier.
4324         */
4325        boolean shouldHideSystemApp = false;
4326        if (updatedPkg == null && ps != null
4327                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4328            /*
4329             * Check to make sure the signatures match first. If they don't,
4330             * wipe the installed application and its data.
4331             */
4332            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4333                    != PackageManager.SIGNATURE_MATCH) {
4334                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4335                        + " signatures don't match existing userdata copy; removing");
4336                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4337                ps = null;
4338            } else {
4339                /*
4340                 * If the newly-added system app is an older version than the
4341                 * already installed version, hide it. It will be scanned later
4342                 * and re-added like an update.
4343                 */
4344                if (pkg.mVersionCode < ps.versionCode) {
4345                    shouldHideSystemApp = true;
4346                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4347                            + " but new version " + pkg.mVersionCode + " better than installed "
4348                            + ps.versionCode + "; hiding system");
4349                } else {
4350                    /*
4351                     * The newly found system app is a newer version that the
4352                     * one previously installed. Simply remove the
4353                     * already-installed application and replace it with our own
4354                     * while keeping the application data.
4355                     */
4356                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4357                            + " reverting from " + ps.codePathString + ": new version "
4358                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4359                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4360                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4361                            getAppDexInstructionSets(ps));
4362                    synchronized (mInstallLock) {
4363                        args.cleanUpResourcesLI();
4364                    }
4365                }
4366            }
4367        }
4368
4369        // The apk is forward locked (not public) if its code and resources
4370        // are kept in different files. (except for app in either system or
4371        // vendor path).
4372        // TODO grab this value from PackageSettings
4373        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4374            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4375                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4376            }
4377        }
4378
4379        // TODO: extend to support forward-locked splits
4380        String resourcePath = null;
4381        String baseResourcePath = null;
4382        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4383            if (ps != null && ps.resourcePathString != null) {
4384                resourcePath = ps.resourcePathString;
4385                baseResourcePath = ps.resourcePathString;
4386            } else {
4387                // Should not happen at all. Just log an error.
4388                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4389            }
4390        } else {
4391            resourcePath = pkg.codePath;
4392            baseResourcePath = pkg.baseCodePath;
4393        }
4394
4395        // Set application objects path explicitly.
4396        pkg.applicationInfo.setCodePath(pkg.codePath);
4397        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4398        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4399        pkg.applicationInfo.setResourcePath(resourcePath);
4400        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4401        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4402
4403        // Note that we invoke the following method only if we are about to unpack an application
4404        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4405                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4406
4407        /*
4408         * If the system app should be overridden by a previously installed
4409         * data, hide the system app now and let the /data/app scan pick it up
4410         * again.
4411         */
4412        if (shouldHideSystemApp) {
4413            synchronized (mPackages) {
4414                /*
4415                 * We have to grant systems permissions before we hide, because
4416                 * grantPermissions will assume the package update is trying to
4417                 * expand its permissions.
4418                 */
4419                grantPermissionsLPw(pkg, true, pkg.packageName);
4420                mSettings.disableSystemPackageLPw(pkg.packageName);
4421            }
4422        }
4423
4424        return scannedPkg;
4425    }
4426
4427    private static String fixProcessName(String defProcessName,
4428            String processName, int uid) {
4429        if (processName == null) {
4430            return defProcessName;
4431        }
4432        return processName;
4433    }
4434
4435    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4436            throws PackageManagerException {
4437        if (pkgSetting.signatures.mSignatures != null) {
4438            // Already existing package. Make sure signatures match
4439            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4440                    == PackageManager.SIGNATURE_MATCH;
4441            if (!match) {
4442                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4443                        == PackageManager.SIGNATURE_MATCH;
4444            }
4445            if (!match) {
4446                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4447                        + pkg.packageName + " signatures do not match the "
4448                        + "previously installed version; ignoring!");
4449            }
4450        }
4451
4452        // Check for shared user signatures
4453        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4454            // Already existing package. Make sure signatures match
4455            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4456                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4457            if (!match) {
4458                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4459                        == PackageManager.SIGNATURE_MATCH;
4460            }
4461            if (!match) {
4462                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4463                        "Package " + pkg.packageName
4464                        + " has no signatures that match those in shared user "
4465                        + pkgSetting.sharedUser.name + "; ignoring!");
4466            }
4467        }
4468    }
4469
4470    /**
4471     * Enforces that only the system UID or root's UID can call a method exposed
4472     * via Binder.
4473     *
4474     * @param message used as message if SecurityException is thrown
4475     * @throws SecurityException if the caller is not system or root
4476     */
4477    private static final void enforceSystemOrRoot(String message) {
4478        final int uid = Binder.getCallingUid();
4479        if (uid != Process.SYSTEM_UID && uid != 0) {
4480            throw new SecurityException(message);
4481        }
4482    }
4483
4484    @Override
4485    public void performBootDexOpt() {
4486        enforceSystemOrRoot("Only the system can request dexopt be performed");
4487
4488        final HashSet<PackageParser.Package> pkgs;
4489        synchronized (mPackages) {
4490            pkgs = mDeferredDexOpt;
4491            mDeferredDexOpt = null;
4492        }
4493
4494        if (pkgs != null) {
4495            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4496            // in case the device runs out of space.
4497            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4498            // Give priority to core apps.
4499            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4500                PackageParser.Package pkg = it.next();
4501                if (pkg.coreApp) {
4502                    if (DEBUG_DEXOPT) {
4503                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4504                    }
4505                    sortedPkgs.add(pkg);
4506                    it.remove();
4507                }
4508            }
4509            // Give priority to system apps that listen for pre boot complete.
4510            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4511            HashSet<String> pkgNames = getPackageNamesForIntent(intent);
4512            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4513                PackageParser.Package pkg = it.next();
4514                if (pkgNames.contains(pkg.packageName)) {
4515                    if (DEBUG_DEXOPT) {
4516                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4517                    }
4518                    sortedPkgs.add(pkg);
4519                    it.remove();
4520                }
4521            }
4522            // Give priority to system apps.
4523            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4524                PackageParser.Package pkg = it.next();
4525                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4526                    if (DEBUG_DEXOPT) {
4527                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4528                    }
4529                    sortedPkgs.add(pkg);
4530                    it.remove();
4531                }
4532            }
4533            // Give priority to updated system apps.
4534            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4535                PackageParser.Package pkg = it.next();
4536                if (isUpdatedSystemApp(pkg)) {
4537                    if (DEBUG_DEXOPT) {
4538                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4539                    }
4540                    sortedPkgs.add(pkg);
4541                    it.remove();
4542                }
4543            }
4544            // Give priority to apps that listen for boot complete.
4545            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4546            pkgNames = getPackageNamesForIntent(intent);
4547            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4548                PackageParser.Package pkg = it.next();
4549                if (pkgNames.contains(pkg.packageName)) {
4550                    if (DEBUG_DEXOPT) {
4551                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4552                    }
4553                    sortedPkgs.add(pkg);
4554                    it.remove();
4555                }
4556            }
4557            // Filter out packages that aren't recently used.
4558            filterRecentlyUsedApps(pkgs);
4559            // Add all remaining apps.
4560            for (PackageParser.Package pkg : pkgs) {
4561                if (DEBUG_DEXOPT) {
4562                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4563                }
4564                sortedPkgs.add(pkg);
4565            }
4566
4567            int i = 0;
4568            int total = sortedPkgs.size();
4569            File dataDir = Environment.getDataDirectory();
4570            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4571            if (lowThreshold == 0) {
4572                throw new IllegalStateException("Invalid low memory threshold");
4573            }
4574            for (PackageParser.Package pkg : sortedPkgs) {
4575                long usableSpace = dataDir.getUsableSpace();
4576                if (usableSpace < lowThreshold) {
4577                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4578                    break;
4579                }
4580                performBootDexOpt(pkg, ++i, total);
4581            }
4582        }
4583    }
4584
4585    private void filterRecentlyUsedApps(HashSet<PackageParser.Package> pkgs) {
4586        // Filter out packages that aren't recently used.
4587        //
4588        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4589        // should do a full dexopt.
4590        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4591            // TODO: add a property to control this?
4592            long dexOptLRUThresholdInMinutes;
4593            if (mLazyDexOpt) {
4594                dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
4595            } else {
4596                dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
4597            }
4598            long dexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
4599
4600            int total = pkgs.size();
4601            int skipped = 0;
4602            long now = System.currentTimeMillis();
4603            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4604                PackageParser.Package pkg = i.next();
4605                long then = pkg.mLastPackageUsageTimeInMills;
4606                if (then + dexOptLRUThresholdInMills < now) {
4607                    if (DEBUG_DEXOPT) {
4608                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4609                              ((then == 0) ? "never" : new Date(then)));
4610                    }
4611                    i.remove();
4612                    skipped++;
4613                }
4614            }
4615            if (DEBUG_DEXOPT) {
4616                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4617            }
4618        }
4619    }
4620
4621    private HashSet<String> getPackageNamesForIntent(Intent intent) {
4622        List<ResolveInfo> ris = null;
4623        try {
4624            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4625                    intent, null, 0, UserHandle.USER_OWNER);
4626        } catch (RemoteException e) {
4627        }
4628        HashSet<String> pkgNames = new HashSet<String>();
4629        if (ris != null) {
4630            for (ResolveInfo ri : ris) {
4631                pkgNames.add(ri.activityInfo.packageName);
4632            }
4633        }
4634        return pkgNames;
4635    }
4636
4637    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4638        if (DEBUG_DEXOPT) {
4639            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4640        }
4641        if (!isFirstBoot()) {
4642            try {
4643                ActivityManagerNative.getDefault().showBootMessage(
4644                        mContext.getResources().getString(R.string.android_upgrading_apk,
4645                                curr, total), true);
4646            } catch (RemoteException e) {
4647            }
4648        }
4649        PackageParser.Package p = pkg;
4650        synchronized (mInstallLock) {
4651            performDexOptLI(p, null /* instruction sets */, false /* force dex */,
4652                            false /* defer */, true /* include dependencies */);
4653        }
4654    }
4655
4656    @Override
4657    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4658        return performDexOpt(packageName, instructionSet, false);
4659    }
4660
4661    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4662        if (info.primaryCpuAbi == null) {
4663            return getPreferredInstructionSet();
4664        }
4665
4666        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4667    }
4668
4669    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4670        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4671        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4672        if (!dexopt && !updateUsage) {
4673            // We aren't going to dexopt or update usage, so bail early.
4674            return false;
4675        }
4676        PackageParser.Package p;
4677        final String targetInstructionSet;
4678        synchronized (mPackages) {
4679            p = mPackages.get(packageName);
4680            if (p == null) {
4681                return false;
4682            }
4683            if (updateUsage) {
4684                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4685            }
4686            mPackageUsage.write(false);
4687            if (!dexopt) {
4688                // We aren't going to dexopt, so bail early.
4689                return false;
4690            }
4691
4692            targetInstructionSet = instructionSet != null ? instructionSet :
4693                    getPrimaryInstructionSet(p.applicationInfo);
4694            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4695                return false;
4696            }
4697        }
4698
4699        synchronized (mInstallLock) {
4700            final String[] instructionSets = new String[] { targetInstructionSet };
4701            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4702                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4703        }
4704    }
4705
4706    public HashSet<String> getPackagesThatNeedDexOpt() {
4707        HashSet<String> pkgs = null;
4708        synchronized (mPackages) {
4709            for (PackageParser.Package p : mPackages.values()) {
4710                if (DEBUG_DEXOPT) {
4711                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4712                }
4713                if (!p.mDexOptPerformed.isEmpty()) {
4714                    continue;
4715                }
4716                if (pkgs == null) {
4717                    pkgs = new HashSet<String>();
4718                }
4719                pkgs.add(p.packageName);
4720            }
4721        }
4722        return pkgs;
4723    }
4724
4725    public void shutdown() {
4726        mPackageUsage.write(true);
4727    }
4728
4729    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4730             boolean forceDex, boolean defer, HashSet<String> done) {
4731        for (int i=0; i<libs.size(); i++) {
4732            PackageParser.Package libPkg;
4733            String libName;
4734            synchronized (mPackages) {
4735                libName = libs.get(i);
4736                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4737                if (lib != null && lib.apk != null) {
4738                    libPkg = mPackages.get(lib.apk);
4739                } else {
4740                    libPkg = null;
4741                }
4742            }
4743            if (libPkg != null && !done.contains(libName)) {
4744                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4745            }
4746        }
4747    }
4748
4749    static final int DEX_OPT_SKIPPED = 0;
4750    static final int DEX_OPT_PERFORMED = 1;
4751    static final int DEX_OPT_DEFERRED = 2;
4752    static final int DEX_OPT_FAILED = -1;
4753
4754    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4755            boolean forceDex, boolean defer, HashSet<String> done) {
4756        final String[] instructionSets = targetInstructionSets != null ?
4757                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4758
4759        if (done != null) {
4760            done.add(pkg.packageName);
4761            if (pkg.usesLibraries != null) {
4762                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4763            }
4764            if (pkg.usesOptionalLibraries != null) {
4765                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4766            }
4767        }
4768
4769        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4770            return DEX_OPT_SKIPPED;
4771        }
4772
4773        final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
4774
4775        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4776        boolean performedDexOpt = false;
4777        // There are three basic cases here:
4778        // 1.) we need to dexopt, either because we are forced or it is needed
4779        // 2.) we are defering a needed dexopt
4780        // 3.) we are skipping an unneeded dexopt
4781        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4782        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4783            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4784                continue;
4785            }
4786
4787            for (String path : paths) {
4788                try {
4789                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4790                    // patckage or the one we find does not match the image checksum (i.e. it was
4791                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4792                    // odex file and it matches the checksum of the image but not its base address,
4793                    // meaning we need to move it.
4794                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4795                            pkg.packageName, dexCodeInstructionSet, defer);
4796                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4797                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4798                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
4799                                + " vmSafeMode=" + vmSafeMode);
4800                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4801                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4802                                pkg.packageName, dexCodeInstructionSet, vmSafeMode);
4803
4804                        if (ret < 0) {
4805                            // Don't bother running dexopt again if we failed, it will probably
4806                            // just result in an error again. Also, don't bother dexopting for other
4807                            // paths & ISAs.
4808                            return DEX_OPT_FAILED;
4809                        }
4810
4811                        performedDexOpt = true;
4812                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4813                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4814                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4815                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4816                                pkg.packageName, dexCodeInstructionSet);
4817
4818                        if (ret < 0) {
4819                            // Don't bother running patchoat again if we failed, it will probably
4820                            // just result in an error again. Also, don't bother dexopting for other
4821                            // paths & ISAs.
4822                            return DEX_OPT_FAILED;
4823                        }
4824
4825                        performedDexOpt = true;
4826                    }
4827
4828                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4829                    // paths and instruction sets. We'll deal with them all together when we process
4830                    // our list of deferred dexopts.
4831                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4832                        if (mDeferredDexOpt == null) {
4833                            mDeferredDexOpt = new HashSet<PackageParser.Package>();
4834                        }
4835                        mDeferredDexOpt.add(pkg);
4836                        return DEX_OPT_DEFERRED;
4837                    }
4838                } catch (FileNotFoundException e) {
4839                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4840                    return DEX_OPT_FAILED;
4841                } catch (IOException e) {
4842                    Slog.w(TAG, "IOException reading apk: " + path, e);
4843                    return DEX_OPT_FAILED;
4844                } catch (StaleDexCacheError e) {
4845                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4846                    return DEX_OPT_FAILED;
4847                } catch (Exception e) {
4848                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4849                    return DEX_OPT_FAILED;
4850                }
4851            }
4852
4853            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4854            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4855            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4856            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4857            // it.
4858            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4859        }
4860
4861        // If we've gotten here, we're sure that no error occurred and that we haven't
4862        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4863        // we've skipped all of them because they are up to date. In both cases this
4864        // package doesn't need dexopt any longer.
4865        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4866    }
4867
4868    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4869        if (info.primaryCpuAbi != null) {
4870            if (info.secondaryCpuAbi != null) {
4871                return new String[] {
4872                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4873                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4874            } else {
4875                return new String[] {
4876                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4877            }
4878        }
4879
4880        return new String[] { getPreferredInstructionSet() };
4881    }
4882
4883    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4884        if (ps.primaryCpuAbiString != null) {
4885            if (ps.secondaryCpuAbiString != null) {
4886                return new String[] {
4887                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4888                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4889            } else {
4890                return new String[] {
4891                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
4892            }
4893        }
4894
4895        return new String[] { getPreferredInstructionSet() };
4896    }
4897
4898    private static String getPreferredInstructionSet() {
4899        if (sPreferredInstructionSet == null) {
4900            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
4901        }
4902
4903        return sPreferredInstructionSet;
4904    }
4905
4906    private static List<String> getAllInstructionSets() {
4907        final String[] allAbis = Build.SUPPORTED_ABIS;
4908        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
4909
4910        for (String abi : allAbis) {
4911            final String instructionSet = VMRuntime.getInstructionSet(abi);
4912            if (!allInstructionSets.contains(instructionSet)) {
4913                allInstructionSets.add(instructionSet);
4914            }
4915        }
4916
4917        return allInstructionSets;
4918    }
4919
4920    /**
4921     * Returns the instruction set that should be used to compile dex code. In the presence of
4922     * a native bridge this might be different than the one shared libraries use.
4923     */
4924    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
4925        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
4926        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
4927    }
4928
4929    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
4930        HashSet<String> dexCodeInstructionSets = new HashSet<String>(instructionSets.length);
4931        for (String instructionSet : instructionSets) {
4932            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
4933        }
4934        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
4935    }
4936
4937    /**
4938     * Returns deduplicated list of supported instructions for dex code.
4939     */
4940    public static String[] getAllDexCodeInstructionSets() {
4941        String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length];
4942        for (int i = 0; i < supportedInstructionSets.length; i++) {
4943            String abi = Build.SUPPORTED_ABIS[i];
4944            supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi);
4945        }
4946        return getDexCodeInstructionSets(supportedInstructionSets);
4947    }
4948
4949    @Override
4950    public void forceDexOpt(String packageName) {
4951        enforceSystemOrRoot("forceDexOpt");
4952
4953        PackageParser.Package pkg;
4954        synchronized (mPackages) {
4955            pkg = mPackages.get(packageName);
4956            if (pkg == null) {
4957                throw new IllegalArgumentException("Missing package: " + packageName);
4958            }
4959        }
4960
4961        synchronized (mInstallLock) {
4962            final String[] instructionSets = new String[] {
4963                    getPrimaryInstructionSet(pkg.applicationInfo) };
4964            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
4965            if (res != DEX_OPT_PERFORMED) {
4966                throw new IllegalStateException("Failed to dexopt: " + res);
4967            }
4968        }
4969    }
4970
4971    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
4972                                boolean forceDex, boolean defer, boolean inclDependencies) {
4973        HashSet<String> done;
4974        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
4975            done = new HashSet<String>();
4976            done.add(pkg.packageName);
4977        } else {
4978            done = null;
4979        }
4980        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
4981    }
4982
4983    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4984        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4985            Slog.w(TAG, "Unable to update from " + oldPkg.name
4986                    + " to " + newPkg.packageName
4987                    + ": old package not in system partition");
4988            return false;
4989        } else if (mPackages.get(oldPkg.name) != null) {
4990            Slog.w(TAG, "Unable to update from " + oldPkg.name
4991                    + " to " + newPkg.packageName
4992                    + ": old package still exists");
4993            return false;
4994        }
4995        return true;
4996    }
4997
4998    File getDataPathForUser(int userId) {
4999        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
5000    }
5001
5002    private File getDataPathForPackage(String packageName, int userId) {
5003        /*
5004         * Until we fully support multiple users, return the directory we
5005         * previously would have. The PackageManagerTests will need to be
5006         * revised when this is changed back..
5007         */
5008        if (userId == 0) {
5009            return new File(mAppDataDir, packageName);
5010        } else {
5011            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
5012                + File.separator + packageName);
5013        }
5014    }
5015
5016    private int createDataDirsLI(String packageName, int uid, String seinfo) {
5017        int[] users = sUserManager.getUserIds();
5018        int res = mInstaller.install(packageName, uid, uid, seinfo);
5019        if (res < 0) {
5020            return res;
5021        }
5022        for (int user : users) {
5023            if (user != 0) {
5024                res = mInstaller.createUserData(packageName,
5025                        UserHandle.getUid(user, uid), user, seinfo);
5026                if (res < 0) {
5027                    return res;
5028                }
5029            }
5030        }
5031        return res;
5032    }
5033
5034    private int removeDataDirsLI(String packageName) {
5035        int[] users = sUserManager.getUserIds();
5036        int res = 0;
5037        for (int user : users) {
5038            int resInner = mInstaller.remove(packageName, user);
5039            if (resInner < 0) {
5040                res = resInner;
5041            }
5042        }
5043
5044        return res;
5045    }
5046
5047    private int deleteCodeCacheDirsLI(String packageName) {
5048        int[] users = sUserManager.getUserIds();
5049        int res = 0;
5050        for (int user : users) {
5051            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
5052            if (resInner < 0) {
5053                res = resInner;
5054            }
5055        }
5056        return res;
5057    }
5058
5059    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
5060            PackageParser.Package changingLib) {
5061        if (file.path != null) {
5062            usesLibraryFiles.add(file.path);
5063            return;
5064        }
5065        PackageParser.Package p = mPackages.get(file.apk);
5066        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
5067            // If we are doing this while in the middle of updating a library apk,
5068            // then we need to make sure to use that new apk for determining the
5069            // dependencies here.  (We haven't yet finished committing the new apk
5070            // to the package manager state.)
5071            if (p == null || p.packageName.equals(changingLib.packageName)) {
5072                p = changingLib;
5073            }
5074        }
5075        if (p != null) {
5076            usesLibraryFiles.addAll(p.getAllCodePaths());
5077        }
5078    }
5079
5080    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
5081            PackageParser.Package changingLib) throws PackageManagerException {
5082        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
5083            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
5084            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
5085            for (int i=0; i<N; i++) {
5086                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
5087                if (file == null) {
5088                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
5089                            "Package " + pkg.packageName + " requires unavailable shared library "
5090                            + pkg.usesLibraries.get(i) + "; failing!");
5091                }
5092                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5093            }
5094            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
5095            for (int i=0; i<N; i++) {
5096                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
5097                if (file == null) {
5098                    Slog.w(TAG, "Package " + pkg.packageName
5099                            + " desires unavailable shared library "
5100                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5101                } else {
5102                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5103                }
5104            }
5105            N = usesLibraryFiles.size();
5106            if (N > 0) {
5107                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5108            } else {
5109                pkg.usesLibraryFiles = null;
5110            }
5111        }
5112    }
5113
5114    private static boolean hasString(List<String> list, List<String> which) {
5115        if (list == null) {
5116            return false;
5117        }
5118        for (int i=list.size()-1; i>=0; i--) {
5119            for (int j=which.size()-1; j>=0; j--) {
5120                if (which.get(j).equals(list.get(i))) {
5121                    return true;
5122                }
5123            }
5124        }
5125        return false;
5126    }
5127
5128    private void updateAllSharedLibrariesLPw() {
5129        for (PackageParser.Package pkg : mPackages.values()) {
5130            try {
5131                updateSharedLibrariesLPw(pkg, null);
5132            } catch (PackageManagerException e) {
5133                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5134            }
5135        }
5136    }
5137
5138    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5139            PackageParser.Package changingPkg) {
5140        ArrayList<PackageParser.Package> res = null;
5141        for (PackageParser.Package pkg : mPackages.values()) {
5142            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5143                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5144                if (res == null) {
5145                    res = new ArrayList<PackageParser.Package>();
5146                }
5147                res.add(pkg);
5148                try {
5149                    updateSharedLibrariesLPw(pkg, changingPkg);
5150                } catch (PackageManagerException e) {
5151                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5152                }
5153            }
5154        }
5155        return res;
5156    }
5157
5158    /**
5159     * Derive the value of the {@code cpuAbiOverride} based on the provided
5160     * value and an optional stored value from the package settings.
5161     */
5162    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5163        String cpuAbiOverride = null;
5164
5165        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5166            cpuAbiOverride = null;
5167        } else if (abiOverride != null) {
5168            cpuAbiOverride = abiOverride;
5169        } else if (settings != null) {
5170            cpuAbiOverride = settings.cpuAbiOverrideString;
5171        }
5172
5173        return cpuAbiOverride;
5174    }
5175
5176    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5177            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5178        boolean success = false;
5179        try {
5180            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5181                    currentTime, user);
5182            success = true;
5183            return res;
5184        } finally {
5185            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5186                removeDataDirsLI(pkg.packageName);
5187            }
5188        }
5189    }
5190
5191    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5192            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5193        final File scanFile = new File(pkg.codePath);
5194        if (pkg.applicationInfo.getCodePath() == null ||
5195                pkg.applicationInfo.getResourcePath() == null) {
5196            // Bail out. The resource and code paths haven't been set.
5197            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5198                    "Code and resource paths haven't been set correctly");
5199        }
5200
5201        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5202            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5203        } else {
5204            // Only allow system apps to be flagged as core apps.
5205            pkg.coreApp = false;
5206        }
5207
5208        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5209            pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
5210        }
5211
5212        if (mCustomResolverComponentName != null &&
5213                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5214            setUpCustomResolverActivity(pkg);
5215        }
5216
5217        if (pkg.packageName.equals("android")) {
5218            synchronized (mPackages) {
5219                if (mAndroidApplication != null) {
5220                    Slog.w(TAG, "*************************************************");
5221                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5222                    Slog.w(TAG, " file=" + scanFile);
5223                    Slog.w(TAG, "*************************************************");
5224                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5225                            "Core android package being redefined.  Skipping.");
5226                }
5227
5228                // Set up information for our fall-back user intent resolution activity.
5229                mPlatformPackage = pkg;
5230                pkg.mVersionCode = mSdkVersion;
5231                mAndroidApplication = pkg.applicationInfo;
5232
5233                if (!mResolverReplaced) {
5234                    mResolveActivity.applicationInfo = mAndroidApplication;
5235                    mResolveActivity.name = ResolverActivity.class.getName();
5236                    mResolveActivity.packageName = mAndroidApplication.packageName;
5237                    mResolveActivity.processName = "system:ui";
5238                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5239                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5240                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5241                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5242                    mResolveActivity.exported = true;
5243                    mResolveActivity.enabled = true;
5244                    mResolveInfo.activityInfo = mResolveActivity;
5245                    mResolveInfo.priority = 0;
5246                    mResolveInfo.preferredOrder = 0;
5247                    mResolveInfo.match = 0;
5248                    mResolveComponentName = new ComponentName(
5249                            mAndroidApplication.packageName, mResolveActivity.name);
5250                }
5251            }
5252        }
5253
5254        if (DEBUG_PACKAGE_SCANNING) {
5255            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5256                Log.d(TAG, "Scanning package " + pkg.packageName);
5257        }
5258
5259        if (mPackages.containsKey(pkg.packageName)
5260                || mSharedLibraries.containsKey(pkg.packageName)) {
5261            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5262                    "Application package " + pkg.packageName
5263                    + " already installed.  Skipping duplicate.");
5264        }
5265
5266        // Initialize package source and resource directories
5267        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5268        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5269
5270        SharedUserSetting suid = null;
5271        PackageSetting pkgSetting = null;
5272
5273        if (!isSystemApp(pkg)) {
5274            // Only system apps can use these features.
5275            pkg.mOriginalPackages = null;
5276            pkg.mRealPackage = null;
5277            pkg.mAdoptPermissions = null;
5278        }
5279
5280        // writer
5281        synchronized (mPackages) {
5282            if (pkg.mSharedUserId != null) {
5283                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, 0, true);
5284                if (suid == null) {
5285                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5286                            "Creating application package " + pkg.packageName
5287                            + " for shared user failed");
5288                }
5289                if (DEBUG_PACKAGE_SCANNING) {
5290                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5291                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5292                                + "): packages=" + suid.packages);
5293                }
5294            }
5295
5296            // Check if we are renaming from an original package name.
5297            PackageSetting origPackage = null;
5298            String realName = null;
5299            if (pkg.mOriginalPackages != null) {
5300                // This package may need to be renamed to a previously
5301                // installed name.  Let's check on that...
5302                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5303                if (pkg.mOriginalPackages.contains(renamed)) {
5304                    // This package had originally been installed as the
5305                    // original name, and we have already taken care of
5306                    // transitioning to the new one.  Just update the new
5307                    // one to continue using the old name.
5308                    realName = pkg.mRealPackage;
5309                    if (!pkg.packageName.equals(renamed)) {
5310                        // Callers into this function may have already taken
5311                        // care of renaming the package; only do it here if
5312                        // it is not already done.
5313                        pkg.setPackageName(renamed);
5314                    }
5315
5316                } else {
5317                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5318                        if ((origPackage = mSettings.peekPackageLPr(
5319                                pkg.mOriginalPackages.get(i))) != null) {
5320                            // We do have the package already installed under its
5321                            // original name...  should we use it?
5322                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5323                                // New package is not compatible with original.
5324                                origPackage = null;
5325                                continue;
5326                            } else if (origPackage.sharedUser != null) {
5327                                // Make sure uid is compatible between packages.
5328                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5329                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5330                                            + " to " + pkg.packageName + ": old uid "
5331                                            + origPackage.sharedUser.name
5332                                            + " differs from " + pkg.mSharedUserId);
5333                                    origPackage = null;
5334                                    continue;
5335                                }
5336                            } else {
5337                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5338                                        + pkg.packageName + " to old name " + origPackage.name);
5339                            }
5340                            break;
5341                        }
5342                    }
5343                }
5344            }
5345
5346            if (mTransferedPackages.contains(pkg.packageName)) {
5347                Slog.w(TAG, "Package " + pkg.packageName
5348                        + " was transferred to another, but its .apk remains");
5349            }
5350
5351            // Just create the setting, don't add it yet. For already existing packages
5352            // the PkgSetting exists already and doesn't have to be created.
5353            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5354                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5355                    pkg.applicationInfo.primaryCpuAbi,
5356                    pkg.applicationInfo.secondaryCpuAbi,
5357                    pkg.applicationInfo.flags, pkg.applicationInfo.privateFlags,
5358                    user, false);
5359            if (pkgSetting == null) {
5360                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5361                        "Creating application package " + pkg.packageName + " failed");
5362            }
5363
5364            if (pkgSetting.origPackage != null) {
5365                // If we are first transitioning from an original package,
5366                // fix up the new package's name now.  We need to do this after
5367                // looking up the package under its new name, so getPackageLP
5368                // can take care of fiddling things correctly.
5369                pkg.setPackageName(origPackage.name);
5370
5371                // File a report about this.
5372                String msg = "New package " + pkgSetting.realName
5373                        + " renamed to replace old package " + pkgSetting.name;
5374                reportSettingsProblem(Log.WARN, msg);
5375
5376                // Make a note of it.
5377                mTransferedPackages.add(origPackage.name);
5378
5379                // No longer need to retain this.
5380                pkgSetting.origPackage = null;
5381            }
5382
5383            if (realName != null) {
5384                // Make a note of it.
5385                mTransferedPackages.add(pkg.packageName);
5386            }
5387
5388            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5389                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5390            }
5391
5392            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5393                // Check all shared libraries and map to their actual file path.
5394                // We only do this here for apps not on a system dir, because those
5395                // are the only ones that can fail an install due to this.  We
5396                // will take care of the system apps by updating all of their
5397                // library paths after the scan is done.
5398                updateSharedLibrariesLPw(pkg, null);
5399            }
5400
5401            if (mFoundPolicyFile) {
5402                SELinuxMMAC.assignSeinfoValue(pkg);
5403            }
5404
5405            pkg.applicationInfo.uid = pkgSetting.appId;
5406            pkg.mExtras = pkgSetting;
5407            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5408                try {
5409                    verifySignaturesLP(pkgSetting, pkg);
5410                } catch (PackageManagerException e) {
5411                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5412                        throw e;
5413                    }
5414                    // The signature has changed, but this package is in the system
5415                    // image...  let's recover!
5416                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5417                    // However...  if this package is part of a shared user, but it
5418                    // doesn't match the signature of the shared user, let's fail.
5419                    // What this means is that you can't change the signatures
5420                    // associated with an overall shared user, which doesn't seem all
5421                    // that unreasonable.
5422                    if (pkgSetting.sharedUser != null) {
5423                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5424                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5425                            throw new PackageManagerException(
5426                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5427                                            "Signature mismatch for shared user : "
5428                                            + pkgSetting.sharedUser);
5429                        }
5430                    }
5431                    // File a report about this.
5432                    String msg = "System package " + pkg.packageName
5433                        + " signature changed; retaining data.";
5434                    reportSettingsProblem(Log.WARN, msg);
5435                }
5436            } else {
5437                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5438                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5439                            + pkg.packageName + " upgrade keys do not match the "
5440                            + "previously installed version");
5441                } else {
5442                    // signatures may have changed as result of upgrade
5443                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5444                }
5445            }
5446            // Verify that this new package doesn't have any content providers
5447            // that conflict with existing packages.  Only do this if the
5448            // package isn't already installed, since we don't want to break
5449            // things that are installed.
5450            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5451                final int N = pkg.providers.size();
5452                int i;
5453                for (i=0; i<N; i++) {
5454                    PackageParser.Provider p = pkg.providers.get(i);
5455                    if (p.info.authority != null) {
5456                        String names[] = p.info.authority.split(";");
5457                        for (int j = 0; j < names.length; j++) {
5458                            if (mProvidersByAuthority.containsKey(names[j])) {
5459                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5460                                final String otherPackageName =
5461                                        ((other != null && other.getComponentName() != null) ?
5462                                                other.getComponentName().getPackageName() : "?");
5463                                throw new PackageManagerException(
5464                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5465                                                "Can't install because provider name " + names[j]
5466                                                + " (in package " + pkg.applicationInfo.packageName
5467                                                + ") is already used by " + otherPackageName);
5468                            }
5469                        }
5470                    }
5471                }
5472            }
5473
5474            if (pkg.mAdoptPermissions != null) {
5475                // This package wants to adopt ownership of permissions from
5476                // another package.
5477                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5478                    final String origName = pkg.mAdoptPermissions.get(i);
5479                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5480                    if (orig != null) {
5481                        if (verifyPackageUpdateLPr(orig, pkg)) {
5482                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5483                                    + pkg.packageName);
5484                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5485                        }
5486                    }
5487                }
5488            }
5489        }
5490
5491        final String pkgName = pkg.packageName;
5492
5493        final long scanFileTime = scanFile.lastModified();
5494        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5495        pkg.applicationInfo.processName = fixProcessName(
5496                pkg.applicationInfo.packageName,
5497                pkg.applicationInfo.processName,
5498                pkg.applicationInfo.uid);
5499
5500        File dataPath;
5501        if (mPlatformPackage == pkg) {
5502            // The system package is special.
5503            dataPath = new File(Environment.getDataDirectory(), "system");
5504
5505            pkg.applicationInfo.dataDir = dataPath.getPath();
5506
5507        } else {
5508            // This is a normal package, need to make its data directory.
5509            dataPath = getDataPathForPackage(pkg.packageName, 0);
5510
5511            boolean uidError = false;
5512            if (dataPath.exists()) {
5513                int currentUid = 0;
5514                try {
5515                    StructStat stat = Os.stat(dataPath.getPath());
5516                    currentUid = stat.st_uid;
5517                } catch (ErrnoException e) {
5518                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5519                }
5520
5521                // If we have mismatched owners for the data path, we have a problem.
5522                if (currentUid != pkg.applicationInfo.uid) {
5523                    boolean recovered = false;
5524                    if (currentUid == 0) {
5525                        // The directory somehow became owned by root.  Wow.
5526                        // This is probably because the system was stopped while
5527                        // installd was in the middle of messing with its libs
5528                        // directory.  Ask installd to fix that.
5529                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5530                                pkg.applicationInfo.uid);
5531                        if (ret >= 0) {
5532                            recovered = true;
5533                            String msg = "Package " + pkg.packageName
5534                                    + " unexpectedly changed to uid 0; recovered to " +
5535                                    + pkg.applicationInfo.uid;
5536                            reportSettingsProblem(Log.WARN, msg);
5537                        }
5538                    }
5539                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5540                            || (scanFlags&SCAN_BOOTING) != 0)) {
5541                        // If this is a system app, we can at least delete its
5542                        // current data so the application will still work.
5543                        int ret = removeDataDirsLI(pkgName);
5544                        if (ret >= 0) {
5545                            // TODO: Kill the processes first
5546                            // Old data gone!
5547                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5548                                    ? "System package " : "Third party package ";
5549                            String msg = prefix + pkg.packageName
5550                                    + " has changed from uid: "
5551                                    + currentUid + " to "
5552                                    + pkg.applicationInfo.uid + "; old data erased";
5553                            reportSettingsProblem(Log.WARN, msg);
5554                            recovered = true;
5555
5556                            // And now re-install the app.
5557                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5558                                                   pkg.applicationInfo.seinfo);
5559                            if (ret == -1) {
5560                                // Ack should not happen!
5561                                msg = prefix + pkg.packageName
5562                                        + " could not have data directory re-created after delete.";
5563                                reportSettingsProblem(Log.WARN, msg);
5564                                throw new PackageManagerException(
5565                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5566                            }
5567                        }
5568                        if (!recovered) {
5569                            mHasSystemUidErrors = true;
5570                        }
5571                    } else if (!recovered) {
5572                        // If we allow this install to proceed, we will be broken.
5573                        // Abort, abort!
5574                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5575                                "scanPackageLI");
5576                    }
5577                    if (!recovered) {
5578                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5579                            + pkg.applicationInfo.uid + "/fs_"
5580                            + currentUid;
5581                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5582                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5583                        String msg = "Package " + pkg.packageName
5584                                + " has mismatched uid: "
5585                                + currentUid + " on disk, "
5586                                + pkg.applicationInfo.uid + " in settings";
5587                        // writer
5588                        synchronized (mPackages) {
5589                            mSettings.mReadMessages.append(msg);
5590                            mSettings.mReadMessages.append('\n');
5591                            uidError = true;
5592                            if (!pkgSetting.uidError) {
5593                                reportSettingsProblem(Log.ERROR, msg);
5594                            }
5595                        }
5596                    }
5597                }
5598                pkg.applicationInfo.dataDir = dataPath.getPath();
5599                if (mShouldRestoreconData) {
5600                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5601                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5602                                pkg.applicationInfo.uid);
5603                }
5604            } else {
5605                if (DEBUG_PACKAGE_SCANNING) {
5606                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5607                        Log.v(TAG, "Want this data dir: " + dataPath);
5608                }
5609                //invoke installer to do the actual installation
5610                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5611                                           pkg.applicationInfo.seinfo);
5612                if (ret < 0) {
5613                    // Error from installer
5614                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5615                            "Unable to create data dirs [errorCode=" + ret + "]");
5616                }
5617
5618                if (dataPath.exists()) {
5619                    pkg.applicationInfo.dataDir = dataPath.getPath();
5620                } else {
5621                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5622                    pkg.applicationInfo.dataDir = null;
5623                }
5624            }
5625
5626            pkgSetting.uidError = uidError;
5627        }
5628
5629        final String path = scanFile.getPath();
5630        final String codePath = pkg.applicationInfo.getCodePath();
5631        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5632        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5633            setBundledAppAbisAndRoots(pkg, pkgSetting);
5634
5635            // If we haven't found any native libraries for the app, check if it has
5636            // renderscript code. We'll need to force the app to 32 bit if it has
5637            // renderscript bitcode.
5638            if (pkg.applicationInfo.primaryCpuAbi == null
5639                    && pkg.applicationInfo.secondaryCpuAbi == null
5640                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5641                NativeLibraryHelper.Handle handle = null;
5642                try {
5643                    handle = NativeLibraryHelper.Handle.create(scanFile);
5644                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5645                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5646                    }
5647                } catch (IOException ioe) {
5648                    Slog.w(TAG, "Error scanning system app : " + ioe);
5649                } finally {
5650                    IoUtils.closeQuietly(handle);
5651                }
5652            }
5653
5654            setNativeLibraryPaths(pkg);
5655        } else {
5656            // TODO: We can probably be smarter about this stuff. For installed apps,
5657            // we can calculate this information at install time once and for all. For
5658            // system apps, we can probably assume that this information doesn't change
5659            // after the first boot scan. As things stand, we do lots of unnecessary work.
5660
5661            // Give ourselves some initial paths; we'll come back for another
5662            // pass once we've determined ABI below.
5663            setNativeLibraryPaths(pkg);
5664
5665            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5666            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5667            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5668
5669            NativeLibraryHelper.Handle handle = null;
5670            try {
5671                handle = NativeLibraryHelper.Handle.create(scanFile);
5672                // TODO(multiArch): This can be null for apps that didn't go through the
5673                // usual installation process. We can calculate it again, like we
5674                // do during install time.
5675                //
5676                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5677                // unnecessary.
5678                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5679
5680                // Null out the abis so that they can be recalculated.
5681                pkg.applicationInfo.primaryCpuAbi = null;
5682                pkg.applicationInfo.secondaryCpuAbi = null;
5683                if (isMultiArch(pkg.applicationInfo)) {
5684                    // Warn if we've set an abiOverride for multi-lib packages..
5685                    // By definition, we need to copy both 32 and 64 bit libraries for
5686                    // such packages.
5687                    if (pkg.cpuAbiOverride != null
5688                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5689                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5690                    }
5691
5692                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5693                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5694                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5695                        if (isAsec) {
5696                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5697                        } else {
5698                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5699                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5700                                    useIsaSpecificSubdirs);
5701                        }
5702                    }
5703
5704                    maybeThrowExceptionForMultiArchCopy(
5705                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5706
5707                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5708                        if (isAsec) {
5709                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5710                        } else {
5711                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5712                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5713                                    useIsaSpecificSubdirs);
5714                        }
5715                    }
5716
5717                    maybeThrowExceptionForMultiArchCopy(
5718                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5719
5720                    if (abi64 >= 0) {
5721                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5722                    }
5723
5724                    if (abi32 >= 0) {
5725                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5726                        if (abi64 >= 0) {
5727                            pkg.applicationInfo.secondaryCpuAbi = abi;
5728                        } else {
5729                            pkg.applicationInfo.primaryCpuAbi = abi;
5730                        }
5731                    }
5732                } else {
5733                    String[] abiList = (cpuAbiOverride != null) ?
5734                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5735
5736                    // Enable gross and lame hacks for apps that are built with old
5737                    // SDK tools. We must scan their APKs for renderscript bitcode and
5738                    // not launch them if it's present. Don't bother checking on devices
5739                    // that don't have 64 bit support.
5740                    boolean needsRenderScriptOverride = false;
5741                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5742                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5743                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5744                        needsRenderScriptOverride = true;
5745                    }
5746
5747                    final int copyRet;
5748                    if (isAsec) {
5749                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5750                    } else {
5751                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5752                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5753                    }
5754
5755                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5756                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5757                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5758                    }
5759
5760                    if (copyRet >= 0) {
5761                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5762                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5763                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5764                    } else if (needsRenderScriptOverride) {
5765                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5766                    }
5767                }
5768            } catch (IOException ioe) {
5769                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5770            } finally {
5771                IoUtils.closeQuietly(handle);
5772            }
5773
5774            // Now that we've calculated the ABIs and determined if it's an internal app,
5775            // we will go ahead and populate the nativeLibraryPath.
5776            setNativeLibraryPaths(pkg);
5777
5778            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5779            final int[] userIds = sUserManager.getUserIds();
5780            synchronized (mInstallLock) {
5781                // Create a native library symlink only if we have native libraries
5782                // and if the native libraries are 32 bit libraries. We do not provide
5783                // this symlink for 64 bit libraries.
5784                if (pkg.applicationInfo.primaryCpuAbi != null &&
5785                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5786                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5787                    for (int userId : userIds) {
5788                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5789                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5790                                    "Failed linking native library dir (user=" + userId + ")");
5791                        }
5792                    }
5793                }
5794            }
5795        }
5796
5797        // This is a special case for the "system" package, where the ABI is
5798        // dictated by the zygote configuration (and init.rc). We should keep track
5799        // of this ABI so that we can deal with "normal" applications that run under
5800        // the same UID correctly.
5801        if (mPlatformPackage == pkg) {
5802            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5803                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5804        }
5805
5806        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5807        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5808        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5809        // Copy the derived override back to the parsed package, so that we can
5810        // update the package settings accordingly.
5811        pkg.cpuAbiOverride = cpuAbiOverride;
5812
5813        if (DEBUG_ABI_SELECTION) {
5814            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5815                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5816                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5817        }
5818
5819        // Push the derived path down into PackageSettings so we know what to
5820        // clean up at uninstall time.
5821        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5822
5823        if (DEBUG_ABI_SELECTION) {
5824            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5825                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5826                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5827        }
5828
5829        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5830            // We don't do this here during boot because we can do it all
5831            // at once after scanning all existing packages.
5832            //
5833            // We also do this *before* we perform dexopt on this package, so that
5834            // we can avoid redundant dexopts, and also to make sure we've got the
5835            // code and package path correct.
5836            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5837                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5838        }
5839
5840        if ((scanFlags & SCAN_NO_DEX) == 0) {
5841            if (performDexOptLI(pkg, null /* instruction sets */, forceDex,
5842                    (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5843                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5844            }
5845        }
5846
5847        if (mFactoryTest && pkg.requestedPermissions.contains(
5848                android.Manifest.permission.FACTORY_TEST)) {
5849            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5850        }
5851
5852        ArrayList<PackageParser.Package> clientLibPkgs = null;
5853
5854        // writer
5855        synchronized (mPackages) {
5856            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5857                // Only system apps can add new shared libraries.
5858                if (pkg.libraryNames != null) {
5859                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5860                        String name = pkg.libraryNames.get(i);
5861                        boolean allowed = false;
5862                        if (isUpdatedSystemApp(pkg)) {
5863                            // New library entries can only be added through the
5864                            // system image.  This is important to get rid of a lot
5865                            // of nasty edge cases: for example if we allowed a non-
5866                            // system update of the app to add a library, then uninstalling
5867                            // the update would make the library go away, and assumptions
5868                            // we made such as through app install filtering would now
5869                            // have allowed apps on the device which aren't compatible
5870                            // with it.  Better to just have the restriction here, be
5871                            // conservative, and create many fewer cases that can negatively
5872                            // impact the user experience.
5873                            final PackageSetting sysPs = mSettings
5874                                    .getDisabledSystemPkgLPr(pkg.packageName);
5875                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5876                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5877                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5878                                        allowed = true;
5879                                        allowed = true;
5880                                        break;
5881                                    }
5882                                }
5883                            }
5884                        } else {
5885                            allowed = true;
5886                        }
5887                        if (allowed) {
5888                            if (!mSharedLibraries.containsKey(name)) {
5889                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5890                            } else if (!name.equals(pkg.packageName)) {
5891                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5892                                        + name + " already exists; skipping");
5893                            }
5894                        } else {
5895                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5896                                    + name + " that is not declared on system image; skipping");
5897                        }
5898                    }
5899                    if ((scanFlags&SCAN_BOOTING) == 0) {
5900                        // If we are not booting, we need to update any applications
5901                        // that are clients of our shared library.  If we are booting,
5902                        // this will all be done once the scan is complete.
5903                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5904                    }
5905                }
5906            }
5907        }
5908
5909        // We also need to dexopt any apps that are dependent on this library.  Note that
5910        // if these fail, we should abort the install since installing the library will
5911        // result in some apps being broken.
5912        if (clientLibPkgs != null) {
5913            if ((scanFlags & SCAN_NO_DEX) == 0) {
5914                for (int i = 0; i < clientLibPkgs.size(); i++) {
5915                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5916                    if (performDexOptLI(clientPkg, null /* instruction sets */, forceDex,
5917                            (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5918                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5919                                "scanPackageLI failed to dexopt clientLibPkgs");
5920                    }
5921                }
5922            }
5923        }
5924
5925        // Request the ActivityManager to kill the process(only for existing packages)
5926        // so that we do not end up in a confused state while the user is still using the older
5927        // version of the application while the new one gets installed.
5928        if ((scanFlags & SCAN_REPLACING) != 0) {
5929            killApplication(pkg.applicationInfo.packageName,
5930                        pkg.applicationInfo.uid, "update pkg");
5931        }
5932
5933        // Also need to kill any apps that are dependent on the library.
5934        if (clientLibPkgs != null) {
5935            for (int i=0; i<clientLibPkgs.size(); i++) {
5936                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5937                killApplication(clientPkg.applicationInfo.packageName,
5938                        clientPkg.applicationInfo.uid, "update lib");
5939            }
5940        }
5941
5942        // writer
5943        synchronized (mPackages) {
5944            // We don't expect installation to fail beyond this point
5945
5946            // Add the new setting to mSettings
5947            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5948            // Add the new setting to mPackages
5949            mPackages.put(pkg.applicationInfo.packageName, pkg);
5950            // Make sure we don't accidentally delete its data.
5951            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5952            while (iter.hasNext()) {
5953                PackageCleanItem item = iter.next();
5954                if (pkgName.equals(item.packageName)) {
5955                    iter.remove();
5956                }
5957            }
5958
5959            // Take care of first install / last update times.
5960            if (currentTime != 0) {
5961                if (pkgSetting.firstInstallTime == 0) {
5962                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5963                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5964                    pkgSetting.lastUpdateTime = currentTime;
5965                }
5966            } else if (pkgSetting.firstInstallTime == 0) {
5967                // We need *something*.  Take time time stamp of the file.
5968                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5969            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5970                if (scanFileTime != pkgSetting.timeStamp) {
5971                    // A package on the system image has changed; consider this
5972                    // to be an update.
5973                    pkgSetting.lastUpdateTime = scanFileTime;
5974                }
5975            }
5976
5977            // Add the package's KeySets to the global KeySetManagerService
5978            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5979            try {
5980                // Old KeySetData no longer valid.
5981                ksms.removeAppKeySetDataLPw(pkg.packageName);
5982                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5983                if (pkg.mKeySetMapping != null) {
5984                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5985                            pkg.mKeySetMapping.entrySet()) {
5986                        if (entry.getValue() != null) {
5987                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5988                                                          entry.getValue(), entry.getKey());
5989                        }
5990                    }
5991                    if (pkg.mUpgradeKeySets != null) {
5992                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5993                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5994                        }
5995                    }
5996                }
5997            } catch (NullPointerException e) {
5998                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5999            } catch (IllegalArgumentException e) {
6000                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
6001            }
6002
6003            int N = pkg.providers.size();
6004            StringBuilder r = null;
6005            int i;
6006            for (i=0; i<N; i++) {
6007                PackageParser.Provider p = pkg.providers.get(i);
6008                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
6009                        p.info.processName, pkg.applicationInfo.uid);
6010                mProviders.addProvider(p);
6011                p.syncable = p.info.isSyncable;
6012                if (p.info.authority != null) {
6013                    String names[] = p.info.authority.split(";");
6014                    p.info.authority = null;
6015                    for (int j = 0; j < names.length; j++) {
6016                        if (j == 1 && p.syncable) {
6017                            // We only want the first authority for a provider to possibly be
6018                            // syncable, so if we already added this provider using a different
6019                            // authority clear the syncable flag. We copy the provider before
6020                            // changing it because the mProviders object contains a reference
6021                            // to a provider that we don't want to change.
6022                            // Only do this for the second authority since the resulting provider
6023                            // object can be the same for all future authorities for this provider.
6024                            p = new PackageParser.Provider(p);
6025                            p.syncable = false;
6026                        }
6027                        if (!mProvidersByAuthority.containsKey(names[j])) {
6028                            mProvidersByAuthority.put(names[j], p);
6029                            if (p.info.authority == null) {
6030                                p.info.authority = names[j];
6031                            } else {
6032                                p.info.authority = p.info.authority + ";" + names[j];
6033                            }
6034                            if (DEBUG_PACKAGE_SCANNING) {
6035                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
6036                                    Log.d(TAG, "Registered content provider: " + names[j]
6037                                            + ", className = " + p.info.name + ", isSyncable = "
6038                                            + p.info.isSyncable);
6039                            }
6040                        } else {
6041                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
6042                            Slog.w(TAG, "Skipping provider name " + names[j] +
6043                                    " (in package " + pkg.applicationInfo.packageName +
6044                                    "): name already used by "
6045                                    + ((other != null && other.getComponentName() != null)
6046                                            ? other.getComponentName().getPackageName() : "?"));
6047                        }
6048                    }
6049                }
6050                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6051                    if (r == null) {
6052                        r = new StringBuilder(256);
6053                    } else {
6054                        r.append(' ');
6055                    }
6056                    r.append(p.info.name);
6057                }
6058            }
6059            if (r != null) {
6060                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
6061            }
6062
6063            N = pkg.services.size();
6064            r = null;
6065            for (i=0; i<N; i++) {
6066                PackageParser.Service s = pkg.services.get(i);
6067                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
6068                        s.info.processName, pkg.applicationInfo.uid);
6069                mServices.addService(s);
6070                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6071                    if (r == null) {
6072                        r = new StringBuilder(256);
6073                    } else {
6074                        r.append(' ');
6075                    }
6076                    r.append(s.info.name);
6077                }
6078            }
6079            if (r != null) {
6080                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
6081            }
6082
6083            N = pkg.receivers.size();
6084            r = null;
6085            for (i=0; i<N; i++) {
6086                PackageParser.Activity a = pkg.receivers.get(i);
6087                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6088                        a.info.processName, pkg.applicationInfo.uid);
6089                mReceivers.addActivity(a, "receiver");
6090                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6091                    if (r == null) {
6092                        r = new StringBuilder(256);
6093                    } else {
6094                        r.append(' ');
6095                    }
6096                    r.append(a.info.name);
6097                }
6098            }
6099            if (r != null) {
6100                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6101            }
6102
6103            N = pkg.activities.size();
6104            r = null;
6105            for (i=0; i<N; i++) {
6106                PackageParser.Activity a = pkg.activities.get(i);
6107                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6108                        a.info.processName, pkg.applicationInfo.uid);
6109                mActivities.addActivity(a, "activity");
6110                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6111                    if (r == null) {
6112                        r = new StringBuilder(256);
6113                    } else {
6114                        r.append(' ');
6115                    }
6116                    r.append(a.info.name);
6117                }
6118            }
6119            if (r != null) {
6120                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6121            }
6122
6123            N = pkg.permissionGroups.size();
6124            r = null;
6125            for (i=0; i<N; i++) {
6126                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6127                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6128                if (cur == null) {
6129                    mPermissionGroups.put(pg.info.name, pg);
6130                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6131                        if (r == null) {
6132                            r = new StringBuilder(256);
6133                        } else {
6134                            r.append(' ');
6135                        }
6136                        r.append(pg.info.name);
6137                    }
6138                } else {
6139                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6140                            + pg.info.packageName + " ignored: original from "
6141                            + cur.info.packageName);
6142                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6143                        if (r == null) {
6144                            r = new StringBuilder(256);
6145                        } else {
6146                            r.append(' ');
6147                        }
6148                        r.append("DUP:");
6149                        r.append(pg.info.name);
6150                    }
6151                }
6152            }
6153            if (r != null) {
6154                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6155            }
6156
6157            N = pkg.permissions.size();
6158            r = null;
6159            for (i=0; i<N; i++) {
6160                PackageParser.Permission p = pkg.permissions.get(i);
6161                HashMap<String, BasePermission> permissionMap =
6162                        p.tree ? mSettings.mPermissionTrees
6163                        : mSettings.mPermissions;
6164                p.group = mPermissionGroups.get(p.info.group);
6165                if (p.info.group == null || p.group != null) {
6166                    BasePermission bp = permissionMap.get(p.info.name);
6167
6168                    // Allow system apps to redefine non-system permissions
6169                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6170                        final boolean currentOwnerIsSystem = (bp.perm != null
6171                                && isSystemApp(bp.perm.owner));
6172                        if (isSystemApp(p.owner)) {
6173                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6174                                // It's a built-in permission and no owner, take ownership now
6175                                bp.packageSetting = pkgSetting;
6176                                bp.perm = p;
6177                                bp.uid = pkg.applicationInfo.uid;
6178                                bp.sourcePackage = p.info.packageName;
6179                            } else if (!currentOwnerIsSystem) {
6180                                String msg = "New decl " + p.owner + " of permission  "
6181                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6182                                reportSettingsProblem(Log.WARN, msg);
6183                                bp = null;
6184                            }
6185                        }
6186                    }
6187
6188                    if (bp == null) {
6189                        bp = new BasePermission(p.info.name, p.info.packageName,
6190                                BasePermission.TYPE_NORMAL);
6191                        permissionMap.put(p.info.name, bp);
6192                    }
6193
6194                    if (bp.perm == null) {
6195                        if (bp.sourcePackage == null
6196                                || bp.sourcePackage.equals(p.info.packageName)) {
6197                            BasePermission tree = findPermissionTreeLP(p.info.name);
6198                            if (tree == null
6199                                    || tree.sourcePackage.equals(p.info.packageName)) {
6200                                bp.packageSetting = pkgSetting;
6201                                bp.perm = p;
6202                                bp.uid = pkg.applicationInfo.uid;
6203                                bp.sourcePackage = p.info.packageName;
6204                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6205                                    if (r == null) {
6206                                        r = new StringBuilder(256);
6207                                    } else {
6208                                        r.append(' ');
6209                                    }
6210                                    r.append(p.info.name);
6211                                }
6212                            } else {
6213                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6214                                        + p.info.packageName + " ignored: base tree "
6215                                        + tree.name + " is from package "
6216                                        + tree.sourcePackage);
6217                            }
6218                        } else {
6219                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6220                                    + p.info.packageName + " ignored: original from "
6221                                    + bp.sourcePackage);
6222                        }
6223                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6224                        if (r == null) {
6225                            r = new StringBuilder(256);
6226                        } else {
6227                            r.append(' ');
6228                        }
6229                        r.append("DUP:");
6230                        r.append(p.info.name);
6231                    }
6232                    if (bp.perm == p) {
6233                        bp.protectionLevel = p.info.protectionLevel;
6234                    }
6235                } else {
6236                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6237                            + p.info.packageName + " ignored: no group "
6238                            + p.group);
6239                }
6240            }
6241            if (r != null) {
6242                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6243            }
6244
6245            N = pkg.instrumentation.size();
6246            r = null;
6247            for (i=0; i<N; i++) {
6248                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6249                a.info.packageName = pkg.applicationInfo.packageName;
6250                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6251                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6252                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6253                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6254                a.info.dataDir = pkg.applicationInfo.dataDir;
6255
6256                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6257                // need other information about the application, like the ABI and what not ?
6258                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6259                mInstrumentation.put(a.getComponentName(), a);
6260                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6261                    if (r == null) {
6262                        r = new StringBuilder(256);
6263                    } else {
6264                        r.append(' ');
6265                    }
6266                    r.append(a.info.name);
6267                }
6268            }
6269            if (r != null) {
6270                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6271            }
6272
6273            if (pkg.protectedBroadcasts != null) {
6274                N = pkg.protectedBroadcasts.size();
6275                for (i=0; i<N; i++) {
6276                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6277                }
6278            }
6279
6280            pkgSetting.setTimeStamp(scanFileTime);
6281
6282            // Create idmap files for pairs of (packages, overlay packages).
6283            // Note: "android", ie framework-res.apk, is handled by native layers.
6284            if (pkg.mOverlayTarget != null) {
6285                // This is an overlay package.
6286                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6287                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6288                        mOverlays.put(pkg.mOverlayTarget,
6289                                new HashMap<String, PackageParser.Package>());
6290                    }
6291                    HashMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6292                    map.put(pkg.packageName, pkg);
6293                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6294                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6295                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6296                                "scanPackageLI failed to createIdmap");
6297                    }
6298                }
6299            } else if (mOverlays.containsKey(pkg.packageName) &&
6300                    !pkg.packageName.equals("android")) {
6301                // This is a regular package, with one or more known overlay packages.
6302                createIdmapsForPackageLI(pkg);
6303            }
6304        }
6305
6306        return pkg;
6307    }
6308
6309    /**
6310     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6311     * i.e, so that all packages can be run inside a single process if required.
6312     *
6313     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6314     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6315     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6316     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6317     * updating a package that belongs to a shared user.
6318     *
6319     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6320     * adds unnecessary complexity.
6321     */
6322    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6323            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6324        String requiredInstructionSet = null;
6325        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6326            requiredInstructionSet = VMRuntime.getInstructionSet(
6327                     scannedPackage.applicationInfo.primaryCpuAbi);
6328        }
6329
6330        PackageSetting requirer = null;
6331        for (PackageSetting ps : packagesForUser) {
6332            // If packagesForUser contains scannedPackage, we skip it. This will happen
6333            // when scannedPackage is an update of an existing package. Without this check,
6334            // we will never be able to change the ABI of any package belonging to a shared
6335            // user, even if it's compatible with other packages.
6336            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6337                if (ps.primaryCpuAbiString == null) {
6338                    continue;
6339                }
6340
6341                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6342                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6343                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6344                    // this but there's not much we can do.
6345                    String errorMessage = "Instruction set mismatch, "
6346                            + ((requirer == null) ? "[caller]" : requirer)
6347                            + " requires " + requiredInstructionSet + " whereas " + ps
6348                            + " requires " + instructionSet;
6349                    Slog.w(TAG, errorMessage);
6350                }
6351
6352                if (requiredInstructionSet == null) {
6353                    requiredInstructionSet = instructionSet;
6354                    requirer = ps;
6355                }
6356            }
6357        }
6358
6359        if (requiredInstructionSet != null) {
6360            String adjustedAbi;
6361            if (requirer != null) {
6362                // requirer != null implies that either scannedPackage was null or that scannedPackage
6363                // did not require an ABI, in which case we have to adjust scannedPackage to match
6364                // the ABI of the set (which is the same as requirer's ABI)
6365                adjustedAbi = requirer.primaryCpuAbiString;
6366                if (scannedPackage != null) {
6367                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6368                }
6369            } else {
6370                // requirer == null implies that we're updating all ABIs in the set to
6371                // match scannedPackage.
6372                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6373            }
6374
6375            for (PackageSetting ps : packagesForUser) {
6376                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6377                    if (ps.primaryCpuAbiString != null) {
6378                        continue;
6379                    }
6380
6381                    ps.primaryCpuAbiString = adjustedAbi;
6382                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6383                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6384                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6385
6386                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6387                                deferDexOpt, true) == DEX_OPT_FAILED) {
6388                            ps.primaryCpuAbiString = null;
6389                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6390                            return;
6391                        } else {
6392                            mInstaller.rmdex(ps.codePathString,
6393                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6394                        }
6395                    }
6396                }
6397            }
6398        }
6399    }
6400
6401    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6402        synchronized (mPackages) {
6403            mResolverReplaced = true;
6404            // Set up information for custom user intent resolution activity.
6405            mResolveActivity.applicationInfo = pkg.applicationInfo;
6406            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6407            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6408            mResolveActivity.processName = null;
6409            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6410            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6411                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6412            mResolveActivity.theme = 0;
6413            mResolveActivity.exported = true;
6414            mResolveActivity.enabled = true;
6415            mResolveInfo.activityInfo = mResolveActivity;
6416            mResolveInfo.priority = 0;
6417            mResolveInfo.preferredOrder = 0;
6418            mResolveInfo.match = 0;
6419            mResolveComponentName = mCustomResolverComponentName;
6420            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6421                    mResolveComponentName);
6422        }
6423    }
6424
6425    private static String calculateBundledApkRoot(final String codePathString) {
6426        final File codePath = new File(codePathString);
6427        final File codeRoot;
6428        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6429            codeRoot = Environment.getRootDirectory();
6430        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6431            codeRoot = Environment.getOemDirectory();
6432        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6433            codeRoot = Environment.getVendorDirectory();
6434        } else {
6435            // Unrecognized code path; take its top real segment as the apk root:
6436            // e.g. /something/app/blah.apk => /something
6437            try {
6438                File f = codePath.getCanonicalFile();
6439                File parent = f.getParentFile();    // non-null because codePath is a file
6440                File tmp;
6441                while ((tmp = parent.getParentFile()) != null) {
6442                    f = parent;
6443                    parent = tmp;
6444                }
6445                codeRoot = f;
6446                Slog.w(TAG, "Unrecognized code path "
6447                        + codePath + " - using " + codeRoot);
6448            } catch (IOException e) {
6449                // Can't canonicalize the code path -- shenanigans?
6450                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6451                return Environment.getRootDirectory().getPath();
6452            }
6453        }
6454        return codeRoot.getPath();
6455    }
6456
6457    /**
6458     * Derive and set the location of native libraries for the given package,
6459     * which varies depending on where and how the package was installed.
6460     */
6461    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6462        final ApplicationInfo info = pkg.applicationInfo;
6463        final String codePath = pkg.codePath;
6464        final File codeFile = new File(codePath);
6465        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6466        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6467
6468        info.nativeLibraryRootDir = null;
6469        info.nativeLibraryRootRequiresIsa = false;
6470        info.nativeLibraryDir = null;
6471        info.secondaryNativeLibraryDir = null;
6472
6473        if (isApkFile(codeFile)) {
6474            // Monolithic install
6475            if (bundledApp) {
6476                // If "/system/lib64/apkname" exists, assume that is the per-package
6477                // native library directory to use; otherwise use "/system/lib/apkname".
6478                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6479                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6480                        getPrimaryInstructionSet(info));
6481
6482                // This is a bundled system app so choose the path based on the ABI.
6483                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6484                // is just the default path.
6485                final String apkName = deriveCodePathName(codePath);
6486                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6487                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6488                        apkName).getAbsolutePath();
6489
6490                if (info.secondaryCpuAbi != null) {
6491                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6492                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6493                            secondaryLibDir, apkName).getAbsolutePath();
6494                }
6495            } else if (asecApp) {
6496                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6497                        .getAbsolutePath();
6498            } else {
6499                final String apkName = deriveCodePathName(codePath);
6500                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6501                        .getAbsolutePath();
6502            }
6503
6504            info.nativeLibraryRootRequiresIsa = false;
6505            info.nativeLibraryDir = info.nativeLibraryRootDir;
6506        } else {
6507            // Cluster install
6508            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6509            info.nativeLibraryRootRequiresIsa = true;
6510
6511            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6512                    getPrimaryInstructionSet(info)).getAbsolutePath();
6513
6514            if (info.secondaryCpuAbi != null) {
6515                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6516                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6517            }
6518        }
6519    }
6520
6521    /**
6522     * Calculate the abis and roots for a bundled app. These can uniquely
6523     * be determined from the contents of the system partition, i.e whether
6524     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6525     * of this information, and instead assume that the system was built
6526     * sensibly.
6527     */
6528    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6529                                           PackageSetting pkgSetting) {
6530        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6531
6532        // If "/system/lib64/apkname" exists, assume that is the per-package
6533        // native library directory to use; otherwise use "/system/lib/apkname".
6534        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6535        setBundledAppAbi(pkg, apkRoot, apkName);
6536        // pkgSetting might be null during rescan following uninstall of updates
6537        // to a bundled app, so accommodate that possibility.  The settings in
6538        // that case will be established later from the parsed package.
6539        //
6540        // If the settings aren't null, sync them up with what we've just derived.
6541        // note that apkRoot isn't stored in the package settings.
6542        if (pkgSetting != null) {
6543            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6544            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6545        }
6546    }
6547
6548    /**
6549     * Deduces the ABI of a bundled app and sets the relevant fields on the
6550     * parsed pkg object.
6551     *
6552     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6553     *        under which system libraries are installed.
6554     * @param apkName the name of the installed package.
6555     */
6556    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6557        final File codeFile = new File(pkg.codePath);
6558
6559        final boolean has64BitLibs;
6560        final boolean has32BitLibs;
6561        if (isApkFile(codeFile)) {
6562            // Monolithic install
6563            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6564            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6565        } else {
6566            // Cluster install
6567            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6568            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6569                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6570                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6571                has64BitLibs = (new File(rootDir, isa)).exists();
6572            } else {
6573                has64BitLibs = false;
6574            }
6575            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6576                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6577                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6578                has32BitLibs = (new File(rootDir, isa)).exists();
6579            } else {
6580                has32BitLibs = false;
6581            }
6582        }
6583
6584        if (has64BitLibs && !has32BitLibs) {
6585            // The package has 64 bit libs, but not 32 bit libs. Its primary
6586            // ABI should be 64 bit. We can safely assume here that the bundled
6587            // native libraries correspond to the most preferred ABI in the list.
6588
6589            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6590            pkg.applicationInfo.secondaryCpuAbi = null;
6591        } else if (has32BitLibs && !has64BitLibs) {
6592            // The package has 32 bit libs but not 64 bit libs. Its primary
6593            // ABI should be 32 bit.
6594
6595            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6596            pkg.applicationInfo.secondaryCpuAbi = null;
6597        } else if (has32BitLibs && has64BitLibs) {
6598            // The application has both 64 and 32 bit bundled libraries. We check
6599            // here that the app declares multiArch support, and warn if it doesn't.
6600            //
6601            // We will be lenient here and record both ABIs. The primary will be the
6602            // ABI that's higher on the list, i.e, a device that's configured to prefer
6603            // 64 bit apps will see a 64 bit primary ABI,
6604
6605            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6606                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6607            }
6608
6609            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6610                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6611                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6612            } else {
6613                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6614                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6615            }
6616        } else {
6617            pkg.applicationInfo.primaryCpuAbi = null;
6618            pkg.applicationInfo.secondaryCpuAbi = null;
6619        }
6620    }
6621
6622    private void killApplication(String pkgName, int appId, String reason) {
6623        // Request the ActivityManager to kill the process(only for existing packages)
6624        // so that we do not end up in a confused state while the user is still using the older
6625        // version of the application while the new one gets installed.
6626        IActivityManager am = ActivityManagerNative.getDefault();
6627        if (am != null) {
6628            try {
6629                am.killApplicationWithAppId(pkgName, appId, reason);
6630            } catch (RemoteException e) {
6631            }
6632        }
6633    }
6634
6635    void removePackageLI(PackageSetting ps, boolean chatty) {
6636        if (DEBUG_INSTALL) {
6637            if (chatty)
6638                Log.d(TAG, "Removing package " + ps.name);
6639        }
6640
6641        // writer
6642        synchronized (mPackages) {
6643            mPackages.remove(ps.name);
6644            final PackageParser.Package pkg = ps.pkg;
6645            if (pkg != null) {
6646                cleanPackageDataStructuresLILPw(pkg, chatty);
6647            }
6648        }
6649    }
6650
6651    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6652        if (DEBUG_INSTALL) {
6653            if (chatty)
6654                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6655        }
6656
6657        // writer
6658        synchronized (mPackages) {
6659            mPackages.remove(pkg.applicationInfo.packageName);
6660            cleanPackageDataStructuresLILPw(pkg, chatty);
6661        }
6662    }
6663
6664    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6665        int N = pkg.providers.size();
6666        StringBuilder r = null;
6667        int i;
6668        for (i=0; i<N; i++) {
6669            PackageParser.Provider p = pkg.providers.get(i);
6670            mProviders.removeProvider(p);
6671            if (p.info.authority == null) {
6672
6673                /* There was another ContentProvider with this authority when
6674                 * this app was installed so this authority is null,
6675                 * Ignore it as we don't have to unregister the provider.
6676                 */
6677                continue;
6678            }
6679            String names[] = p.info.authority.split(";");
6680            for (int j = 0; j < names.length; j++) {
6681                if (mProvidersByAuthority.get(names[j]) == p) {
6682                    mProvidersByAuthority.remove(names[j]);
6683                    if (DEBUG_REMOVE) {
6684                        if (chatty)
6685                            Log.d(TAG, "Unregistered content provider: " + names[j]
6686                                    + ", className = " + p.info.name + ", isSyncable = "
6687                                    + p.info.isSyncable);
6688                    }
6689                }
6690            }
6691            if (DEBUG_REMOVE && chatty) {
6692                if (r == null) {
6693                    r = new StringBuilder(256);
6694                } else {
6695                    r.append(' ');
6696                }
6697                r.append(p.info.name);
6698            }
6699        }
6700        if (r != null) {
6701            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6702        }
6703
6704        N = pkg.services.size();
6705        r = null;
6706        for (i=0; i<N; i++) {
6707            PackageParser.Service s = pkg.services.get(i);
6708            mServices.removeService(s);
6709            if (chatty) {
6710                if (r == null) {
6711                    r = new StringBuilder(256);
6712                } else {
6713                    r.append(' ');
6714                }
6715                r.append(s.info.name);
6716            }
6717        }
6718        if (r != null) {
6719            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6720        }
6721
6722        N = pkg.receivers.size();
6723        r = null;
6724        for (i=0; i<N; i++) {
6725            PackageParser.Activity a = pkg.receivers.get(i);
6726            mReceivers.removeActivity(a, "receiver");
6727            if (DEBUG_REMOVE && chatty) {
6728                if (r == null) {
6729                    r = new StringBuilder(256);
6730                } else {
6731                    r.append(' ');
6732                }
6733                r.append(a.info.name);
6734            }
6735        }
6736        if (r != null) {
6737            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6738        }
6739
6740        N = pkg.activities.size();
6741        r = null;
6742        for (i=0; i<N; i++) {
6743            PackageParser.Activity a = pkg.activities.get(i);
6744            mActivities.removeActivity(a, "activity");
6745            if (DEBUG_REMOVE && chatty) {
6746                if (r == null) {
6747                    r = new StringBuilder(256);
6748                } else {
6749                    r.append(' ');
6750                }
6751                r.append(a.info.name);
6752            }
6753        }
6754        if (r != null) {
6755            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6756        }
6757
6758        N = pkg.permissions.size();
6759        r = null;
6760        for (i=0; i<N; i++) {
6761            PackageParser.Permission p = pkg.permissions.get(i);
6762            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6763            if (bp == null) {
6764                bp = mSettings.mPermissionTrees.get(p.info.name);
6765            }
6766            if (bp != null && bp.perm == p) {
6767                bp.perm = null;
6768                if (DEBUG_REMOVE && chatty) {
6769                    if (r == null) {
6770                        r = new StringBuilder(256);
6771                    } else {
6772                        r.append(' ');
6773                    }
6774                    r.append(p.info.name);
6775                }
6776            }
6777            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6778                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6779                if (appOpPerms != null) {
6780                    appOpPerms.remove(pkg.packageName);
6781                }
6782            }
6783        }
6784        if (r != null) {
6785            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6786        }
6787
6788        N = pkg.requestedPermissions.size();
6789        r = null;
6790        for (i=0; i<N; i++) {
6791            String perm = pkg.requestedPermissions.get(i);
6792            BasePermission bp = mSettings.mPermissions.get(perm);
6793            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6794                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6795                if (appOpPerms != null) {
6796                    appOpPerms.remove(pkg.packageName);
6797                    if (appOpPerms.isEmpty()) {
6798                        mAppOpPermissionPackages.remove(perm);
6799                    }
6800                }
6801            }
6802        }
6803        if (r != null) {
6804            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6805        }
6806
6807        N = pkg.instrumentation.size();
6808        r = null;
6809        for (i=0; i<N; i++) {
6810            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6811            mInstrumentation.remove(a.getComponentName());
6812            if (DEBUG_REMOVE && chatty) {
6813                if (r == null) {
6814                    r = new StringBuilder(256);
6815                } else {
6816                    r.append(' ');
6817                }
6818                r.append(a.info.name);
6819            }
6820        }
6821        if (r != null) {
6822            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6823        }
6824
6825        r = null;
6826        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6827            // Only system apps can hold shared libraries.
6828            if (pkg.libraryNames != null) {
6829                for (i=0; i<pkg.libraryNames.size(); i++) {
6830                    String name = pkg.libraryNames.get(i);
6831                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6832                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6833                        mSharedLibraries.remove(name);
6834                        if (DEBUG_REMOVE && chatty) {
6835                            if (r == null) {
6836                                r = new StringBuilder(256);
6837                            } else {
6838                                r.append(' ');
6839                            }
6840                            r.append(name);
6841                        }
6842                    }
6843                }
6844            }
6845        }
6846        if (r != null) {
6847            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6848        }
6849    }
6850
6851    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6852        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6853            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6854                return true;
6855            }
6856        }
6857        return false;
6858    }
6859
6860    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6861    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6862    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6863
6864    private void updatePermissionsLPw(String changingPkg,
6865            PackageParser.Package pkgInfo, int flags) {
6866        // Make sure there are no dangling permission trees.
6867        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6868        while (it.hasNext()) {
6869            final BasePermission bp = it.next();
6870            if (bp.packageSetting == null) {
6871                // We may not yet have parsed the package, so just see if
6872                // we still know about its settings.
6873                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6874            }
6875            if (bp.packageSetting == null) {
6876                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6877                        + " from package " + bp.sourcePackage);
6878                it.remove();
6879            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6880                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6881                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6882                            + " from package " + bp.sourcePackage);
6883                    flags |= UPDATE_PERMISSIONS_ALL;
6884                    it.remove();
6885                }
6886            }
6887        }
6888
6889        // Make sure all dynamic permissions have been assigned to a package,
6890        // and make sure there are no dangling permissions.
6891        it = mSettings.mPermissions.values().iterator();
6892        while (it.hasNext()) {
6893            final BasePermission bp = it.next();
6894            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6895                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6896                        + bp.name + " pkg=" + bp.sourcePackage
6897                        + " info=" + bp.pendingInfo);
6898                if (bp.packageSetting == null && bp.pendingInfo != null) {
6899                    final BasePermission tree = findPermissionTreeLP(bp.name);
6900                    if (tree != null && tree.perm != null) {
6901                        bp.packageSetting = tree.packageSetting;
6902                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6903                                new PermissionInfo(bp.pendingInfo));
6904                        bp.perm.info.packageName = tree.perm.info.packageName;
6905                        bp.perm.info.name = bp.name;
6906                        bp.uid = tree.uid;
6907                    }
6908                }
6909            }
6910            if (bp.packageSetting == null) {
6911                // We may not yet have parsed the package, so just see if
6912                // we still know about its settings.
6913                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6914            }
6915            if (bp.packageSetting == null) {
6916                Slog.w(TAG, "Removing dangling permission: " + bp.name
6917                        + " from package " + bp.sourcePackage);
6918                it.remove();
6919            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6920                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6921                    Slog.i(TAG, "Removing old permission: " + bp.name
6922                            + " from package " + bp.sourcePackage);
6923                    flags |= UPDATE_PERMISSIONS_ALL;
6924                    it.remove();
6925                }
6926            }
6927        }
6928
6929        // Now update the permissions for all packages, in particular
6930        // replace the granted permissions of the system packages.
6931        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6932            for (PackageParser.Package pkg : mPackages.values()) {
6933                if (pkg != pkgInfo) {
6934                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6935                            changingPkg);
6936                }
6937            }
6938        }
6939
6940        if (pkgInfo != null) {
6941            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6942        }
6943    }
6944
6945    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6946            String packageOfInterest) {
6947        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6948        if (ps == null) {
6949            return;
6950        }
6951        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6952        HashSet<String> origPermissions = gp.grantedPermissions;
6953        boolean changedPermission = false;
6954
6955        if (replace) {
6956            ps.permissionsFixed = false;
6957            if (gp == ps) {
6958                origPermissions = new HashSet<String>(gp.grantedPermissions);
6959                gp.grantedPermissions.clear();
6960                gp.gids = mGlobalGids;
6961            }
6962        }
6963
6964        if (gp.gids == null) {
6965            gp.gids = mGlobalGids;
6966        }
6967
6968        final int N = pkg.requestedPermissions.size();
6969        for (int i=0; i<N; i++) {
6970            final String name = pkg.requestedPermissions.get(i);
6971            final boolean required = pkg.requestedPermissionsRequired.get(i);
6972            final BasePermission bp = mSettings.mPermissions.get(name);
6973            if (DEBUG_INSTALL) {
6974                if (gp != ps) {
6975                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6976                }
6977            }
6978
6979            if (bp == null || bp.packageSetting == null) {
6980                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6981                    Slog.w(TAG, "Unknown permission " + name
6982                            + " in package " + pkg.packageName);
6983                }
6984                continue;
6985            }
6986
6987            final String perm = bp.name;
6988            boolean allowed;
6989            boolean allowedSig = false;
6990            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6991                // Keep track of app op permissions.
6992                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6993                if (pkgs == null) {
6994                    pkgs = new ArraySet<>();
6995                    mAppOpPermissionPackages.put(bp.name, pkgs);
6996                }
6997                pkgs.add(pkg.packageName);
6998            }
6999            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
7000            if (level == PermissionInfo.PROTECTION_NORMAL
7001                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
7002                // We grant a normal or dangerous permission if any of the following
7003                // are true:
7004                // 1) The permission is required
7005                // 2) The permission is optional, but was granted in the past
7006                // 3) The permission is optional, but was requested by an
7007                //    app in /system (not /data)
7008                //
7009                // Otherwise, reject the permission.
7010                allowed = (required || origPermissions.contains(perm)
7011                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
7012            } else if (bp.packageSetting == null) {
7013                // This permission is invalid; skip it.
7014                allowed = false;
7015            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
7016                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
7017                if (allowed) {
7018                    allowedSig = true;
7019                }
7020            } else {
7021                allowed = false;
7022            }
7023            if (DEBUG_INSTALL) {
7024                if (gp != ps) {
7025                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
7026                }
7027            }
7028            if (allowed) {
7029                if (!isSystemApp(ps) && ps.permissionsFixed) {
7030                    // If this is an existing, non-system package, then
7031                    // we can't add any new permissions to it.
7032                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
7033                        // Except...  if this is a permission that was added
7034                        // to the platform (note: need to only do this when
7035                        // updating the platform).
7036                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
7037                    }
7038                }
7039                if (allowed) {
7040                    if (!gp.grantedPermissions.contains(perm)) {
7041                        changedPermission = true;
7042                        gp.grantedPermissions.add(perm);
7043                        gp.gids = appendInts(gp.gids, bp.gids);
7044                    } else if (!ps.haveGids) {
7045                        gp.gids = appendInts(gp.gids, bp.gids);
7046                    }
7047                } else {
7048                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7049                        Slog.w(TAG, "Not granting permission " + perm
7050                                + " to package " + pkg.packageName
7051                                + " because it was previously installed without");
7052                    }
7053                }
7054            } else {
7055                if (gp.grantedPermissions.remove(perm)) {
7056                    changedPermission = true;
7057                    gp.gids = removeInts(gp.gids, bp.gids);
7058                    Slog.i(TAG, "Un-granting permission " + perm
7059                            + " from package " + pkg.packageName
7060                            + " (protectionLevel=" + bp.protectionLevel
7061                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7062                            + ")");
7063                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
7064                    // Don't print warning for app op permissions, since it is fine for them
7065                    // not to be granted, there is a UI for the user to decide.
7066                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7067                        Slog.w(TAG, "Not granting permission " + perm
7068                                + " to package " + pkg.packageName
7069                                + " (protectionLevel=" + bp.protectionLevel
7070                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7071                                + ")");
7072                    }
7073                }
7074            }
7075        }
7076
7077        if ((changedPermission || replace) && !ps.permissionsFixed &&
7078                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
7079            // This is the first that we have heard about this package, so the
7080            // permissions we have now selected are fixed until explicitly
7081            // changed.
7082            ps.permissionsFixed = true;
7083        }
7084        ps.haveGids = true;
7085    }
7086
7087    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7088        boolean allowed = false;
7089        final int NP = PackageParser.NEW_PERMISSIONS.length;
7090        for (int ip=0; ip<NP; ip++) {
7091            final PackageParser.NewPermissionInfo npi
7092                    = PackageParser.NEW_PERMISSIONS[ip];
7093            if (npi.name.equals(perm)
7094                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7095                allowed = true;
7096                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7097                        + pkg.packageName);
7098                break;
7099            }
7100        }
7101        return allowed;
7102    }
7103
7104    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7105                                          BasePermission bp, HashSet<String> origPermissions) {
7106        boolean allowed;
7107        allowed = (compareSignatures(
7108                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7109                        == PackageManager.SIGNATURE_MATCH)
7110                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7111                        == PackageManager.SIGNATURE_MATCH);
7112        if (!allowed && (bp.protectionLevel
7113                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7114            if (isSystemApp(pkg)) {
7115                // For updated system applications, a system permission
7116                // is granted only if it had been defined by the original application.
7117                if (isUpdatedSystemApp(pkg)) {
7118                    final PackageSetting sysPs = mSettings
7119                            .getDisabledSystemPkgLPr(pkg.packageName);
7120                    final GrantedPermissions origGp = sysPs.sharedUser != null
7121                            ? sysPs.sharedUser : sysPs;
7122
7123                    if (origGp.grantedPermissions.contains(perm)) {
7124                        // If the original was granted this permission, we take
7125                        // that grant decision as read and propagate it to the
7126                        // update.
7127                        if (sysPs.isPrivileged()) {
7128                            allowed = true;
7129                        }
7130                    } else {
7131                        // The system apk may have been updated with an older
7132                        // version of the one on the data partition, but which
7133                        // granted a new system permission that it didn't have
7134                        // before.  In this case we do want to allow the app to
7135                        // now get the new permission if the ancestral apk is
7136                        // privileged to get it.
7137                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7138                            for (int j=0;
7139                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7140                                if (perm.equals(
7141                                        sysPs.pkg.requestedPermissions.get(j))) {
7142                                    allowed = true;
7143                                    break;
7144                                }
7145                            }
7146                        }
7147                    }
7148                } else {
7149                    allowed = isPrivilegedApp(pkg);
7150                }
7151            }
7152        }
7153        if (!allowed && (bp.protectionLevel
7154                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7155            // For development permissions, a development permission
7156            // is granted only if it was already granted.
7157            allowed = origPermissions.contains(perm);
7158        }
7159        return allowed;
7160    }
7161
7162    final class ActivityIntentResolver
7163            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7164        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7165                boolean defaultOnly, int userId) {
7166            if (!sUserManager.exists(userId)) return null;
7167            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7168            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7169        }
7170
7171        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7172                int userId) {
7173            if (!sUserManager.exists(userId)) return null;
7174            mFlags = flags;
7175            return super.queryIntent(intent, resolvedType,
7176                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7177        }
7178
7179        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7180                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7181            if (!sUserManager.exists(userId)) return null;
7182            if (packageActivities == null) {
7183                return null;
7184            }
7185            mFlags = flags;
7186            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7187            final int N = packageActivities.size();
7188            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7189                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7190
7191            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7192            for (int i = 0; i < N; ++i) {
7193                intentFilters = packageActivities.get(i).intents;
7194                if (intentFilters != null && intentFilters.size() > 0) {
7195                    PackageParser.ActivityIntentInfo[] array =
7196                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7197                    intentFilters.toArray(array);
7198                    listCut.add(array);
7199                }
7200            }
7201            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7202        }
7203
7204        public final void addActivity(PackageParser.Activity a, String type) {
7205            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7206            mActivities.put(a.getComponentName(), a);
7207            if (DEBUG_SHOW_INFO)
7208                Log.v(
7209                TAG, "  " + type + " " +
7210                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7211            if (DEBUG_SHOW_INFO)
7212                Log.v(TAG, "    Class=" + a.info.name);
7213            final int NI = a.intents.size();
7214            for (int j=0; j<NI; j++) {
7215                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7216                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7217                    intent.setPriority(0);
7218                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7219                            + a.className + " with priority > 0, forcing to 0");
7220                }
7221                if (DEBUG_SHOW_INFO) {
7222                    Log.v(TAG, "    IntentFilter:");
7223                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7224                }
7225                if (!intent.debugCheck()) {
7226                    Log.w(TAG, "==> For Activity " + a.info.name);
7227                }
7228                addFilter(intent);
7229            }
7230        }
7231
7232        public final void removeActivity(PackageParser.Activity a, String type) {
7233            mActivities.remove(a.getComponentName());
7234            if (DEBUG_SHOW_INFO) {
7235                Log.v(TAG, "  " + type + " "
7236                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7237                                : a.info.name) + ":");
7238                Log.v(TAG, "    Class=" + a.info.name);
7239            }
7240            final int NI = a.intents.size();
7241            for (int j=0; j<NI; j++) {
7242                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7243                if (DEBUG_SHOW_INFO) {
7244                    Log.v(TAG, "    IntentFilter:");
7245                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7246                }
7247                removeFilter(intent);
7248            }
7249        }
7250
7251        @Override
7252        protected boolean allowFilterResult(
7253                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7254            ActivityInfo filterAi = filter.activity.info;
7255            for (int i=dest.size()-1; i>=0; i--) {
7256                ActivityInfo destAi = dest.get(i).activityInfo;
7257                if (destAi.name == filterAi.name
7258                        && destAi.packageName == filterAi.packageName) {
7259                    return false;
7260                }
7261            }
7262            return true;
7263        }
7264
7265        @Override
7266        protected ActivityIntentInfo[] newArray(int size) {
7267            return new ActivityIntentInfo[size];
7268        }
7269
7270        @Override
7271        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7272            if (!sUserManager.exists(userId)) return true;
7273            PackageParser.Package p = filter.activity.owner;
7274            if (p != null) {
7275                PackageSetting ps = (PackageSetting)p.mExtras;
7276                if (ps != null) {
7277                    // System apps are never considered stopped for purposes of
7278                    // filtering, because there may be no way for the user to
7279                    // actually re-launch them.
7280                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7281                            && ps.getStopped(userId);
7282                }
7283            }
7284            return false;
7285        }
7286
7287        @Override
7288        protected boolean isPackageForFilter(String packageName,
7289                PackageParser.ActivityIntentInfo info) {
7290            return packageName.equals(info.activity.owner.packageName);
7291        }
7292
7293        @Override
7294        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7295                int match, int userId) {
7296            if (!sUserManager.exists(userId)) return null;
7297            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7298                return null;
7299            }
7300            final PackageParser.Activity activity = info.activity;
7301            if (mSafeMode && (activity.info.applicationInfo.flags
7302                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7303                return null;
7304            }
7305            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7306            if (ps == null) {
7307                return null;
7308            }
7309            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7310                    ps.readUserState(userId), userId);
7311            if (ai == null) {
7312                return null;
7313            }
7314            final ResolveInfo res = new ResolveInfo();
7315            res.activityInfo = ai;
7316            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7317                res.filter = info;
7318            }
7319            res.priority = info.getPriority();
7320            res.preferredOrder = activity.owner.mPreferredOrder;
7321            //System.out.println("Result: " + res.activityInfo.className +
7322            //                   " = " + res.priority);
7323            res.match = match;
7324            res.isDefault = info.hasDefault;
7325            res.labelRes = info.labelRes;
7326            res.nonLocalizedLabel = info.nonLocalizedLabel;
7327            if (userNeedsBadging(userId)) {
7328                res.noResourceId = true;
7329            } else {
7330                res.icon = info.icon;
7331            }
7332            res.system = isSystemApp(res.activityInfo.applicationInfo);
7333            return res;
7334        }
7335
7336        @Override
7337        protected void sortResults(List<ResolveInfo> results) {
7338            Collections.sort(results, mResolvePrioritySorter);
7339        }
7340
7341        @Override
7342        protected void dumpFilter(PrintWriter out, String prefix,
7343                PackageParser.ActivityIntentInfo filter) {
7344            out.print(prefix); out.print(
7345                    Integer.toHexString(System.identityHashCode(filter.activity)));
7346                    out.print(' ');
7347                    filter.activity.printComponentShortName(out);
7348                    out.print(" filter ");
7349                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7350        }
7351
7352//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7353//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7354//            final List<ResolveInfo> retList = Lists.newArrayList();
7355//            while (i.hasNext()) {
7356//                final ResolveInfo resolveInfo = i.next();
7357//                if (isEnabledLP(resolveInfo.activityInfo)) {
7358//                    retList.add(resolveInfo);
7359//                }
7360//            }
7361//            return retList;
7362//        }
7363
7364        // Keys are String (activity class name), values are Activity.
7365        private final HashMap<ComponentName, PackageParser.Activity> mActivities
7366                = new HashMap<ComponentName, PackageParser.Activity>();
7367        private int mFlags;
7368    }
7369
7370    private final class ServiceIntentResolver
7371            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7372        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7373                boolean defaultOnly, int userId) {
7374            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7375            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7376        }
7377
7378        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7379                int userId) {
7380            if (!sUserManager.exists(userId)) return null;
7381            mFlags = flags;
7382            return super.queryIntent(intent, resolvedType,
7383                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7384        }
7385
7386        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7387                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7388            if (!sUserManager.exists(userId)) return null;
7389            if (packageServices == null) {
7390                return null;
7391            }
7392            mFlags = flags;
7393            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7394            final int N = packageServices.size();
7395            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7396                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7397
7398            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7399            for (int i = 0; i < N; ++i) {
7400                intentFilters = packageServices.get(i).intents;
7401                if (intentFilters != null && intentFilters.size() > 0) {
7402                    PackageParser.ServiceIntentInfo[] array =
7403                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7404                    intentFilters.toArray(array);
7405                    listCut.add(array);
7406                }
7407            }
7408            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7409        }
7410
7411        public final void addService(PackageParser.Service s) {
7412            mServices.put(s.getComponentName(), s);
7413            if (DEBUG_SHOW_INFO) {
7414                Log.v(TAG, "  "
7415                        + (s.info.nonLocalizedLabel != null
7416                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7417                Log.v(TAG, "    Class=" + s.info.name);
7418            }
7419            final int NI = s.intents.size();
7420            int j;
7421            for (j=0; j<NI; j++) {
7422                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7423                if (DEBUG_SHOW_INFO) {
7424                    Log.v(TAG, "    IntentFilter:");
7425                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7426                }
7427                if (!intent.debugCheck()) {
7428                    Log.w(TAG, "==> For Service " + s.info.name);
7429                }
7430                addFilter(intent);
7431            }
7432        }
7433
7434        public final void removeService(PackageParser.Service s) {
7435            mServices.remove(s.getComponentName());
7436            if (DEBUG_SHOW_INFO) {
7437                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7438                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7439                Log.v(TAG, "    Class=" + s.info.name);
7440            }
7441            final int NI = s.intents.size();
7442            int j;
7443            for (j=0; j<NI; j++) {
7444                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7445                if (DEBUG_SHOW_INFO) {
7446                    Log.v(TAG, "    IntentFilter:");
7447                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7448                }
7449                removeFilter(intent);
7450            }
7451        }
7452
7453        @Override
7454        protected boolean allowFilterResult(
7455                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7456            ServiceInfo filterSi = filter.service.info;
7457            for (int i=dest.size()-1; i>=0; i--) {
7458                ServiceInfo destAi = dest.get(i).serviceInfo;
7459                if (destAi.name == filterSi.name
7460                        && destAi.packageName == filterSi.packageName) {
7461                    return false;
7462                }
7463            }
7464            return true;
7465        }
7466
7467        @Override
7468        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7469            return new PackageParser.ServiceIntentInfo[size];
7470        }
7471
7472        @Override
7473        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7474            if (!sUserManager.exists(userId)) return true;
7475            PackageParser.Package p = filter.service.owner;
7476            if (p != null) {
7477                PackageSetting ps = (PackageSetting)p.mExtras;
7478                if (ps != null) {
7479                    // System apps are never considered stopped for purposes of
7480                    // filtering, because there may be no way for the user to
7481                    // actually re-launch them.
7482                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7483                            && ps.getStopped(userId);
7484                }
7485            }
7486            return false;
7487        }
7488
7489        @Override
7490        protected boolean isPackageForFilter(String packageName,
7491                PackageParser.ServiceIntentInfo info) {
7492            return packageName.equals(info.service.owner.packageName);
7493        }
7494
7495        @Override
7496        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7497                int match, int userId) {
7498            if (!sUserManager.exists(userId)) return null;
7499            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7500            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7501                return null;
7502            }
7503            final PackageParser.Service service = info.service;
7504            if (mSafeMode && (service.info.applicationInfo.flags
7505                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7506                return null;
7507            }
7508            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7509            if (ps == null) {
7510                return null;
7511            }
7512            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7513                    ps.readUserState(userId), userId);
7514            if (si == null) {
7515                return null;
7516            }
7517            final ResolveInfo res = new ResolveInfo();
7518            res.serviceInfo = si;
7519            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7520                res.filter = filter;
7521            }
7522            res.priority = info.getPriority();
7523            res.preferredOrder = service.owner.mPreferredOrder;
7524            //System.out.println("Result: " + res.activityInfo.className +
7525            //                   " = " + res.priority);
7526            res.match = match;
7527            res.isDefault = info.hasDefault;
7528            res.labelRes = info.labelRes;
7529            res.nonLocalizedLabel = info.nonLocalizedLabel;
7530            res.icon = info.icon;
7531            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7532            return res;
7533        }
7534
7535        @Override
7536        protected void sortResults(List<ResolveInfo> results) {
7537            Collections.sort(results, mResolvePrioritySorter);
7538        }
7539
7540        @Override
7541        protected void dumpFilter(PrintWriter out, String prefix,
7542                PackageParser.ServiceIntentInfo filter) {
7543            out.print(prefix); out.print(
7544                    Integer.toHexString(System.identityHashCode(filter.service)));
7545                    out.print(' ');
7546                    filter.service.printComponentShortName(out);
7547                    out.print(" filter ");
7548                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7549        }
7550
7551//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7552//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7553//            final List<ResolveInfo> retList = Lists.newArrayList();
7554//            while (i.hasNext()) {
7555//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7556//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7557//                    retList.add(resolveInfo);
7558//                }
7559//            }
7560//            return retList;
7561//        }
7562
7563        // Keys are String (activity class name), values are Activity.
7564        private final HashMap<ComponentName, PackageParser.Service> mServices
7565                = new HashMap<ComponentName, PackageParser.Service>();
7566        private int mFlags;
7567    };
7568
7569    private final class ProviderIntentResolver
7570            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7571        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7572                boolean defaultOnly, int userId) {
7573            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7574            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7575        }
7576
7577        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7578                int userId) {
7579            if (!sUserManager.exists(userId))
7580                return null;
7581            mFlags = flags;
7582            return super.queryIntent(intent, resolvedType,
7583                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7584        }
7585
7586        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7587                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7588            if (!sUserManager.exists(userId))
7589                return null;
7590            if (packageProviders == null) {
7591                return null;
7592            }
7593            mFlags = flags;
7594            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7595            final int N = packageProviders.size();
7596            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7597                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7598
7599            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7600            for (int i = 0; i < N; ++i) {
7601                intentFilters = packageProviders.get(i).intents;
7602                if (intentFilters != null && intentFilters.size() > 0) {
7603                    PackageParser.ProviderIntentInfo[] array =
7604                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7605                    intentFilters.toArray(array);
7606                    listCut.add(array);
7607                }
7608            }
7609            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7610        }
7611
7612        public final void addProvider(PackageParser.Provider p) {
7613            if (mProviders.containsKey(p.getComponentName())) {
7614                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7615                return;
7616            }
7617
7618            mProviders.put(p.getComponentName(), p);
7619            if (DEBUG_SHOW_INFO) {
7620                Log.v(TAG, "  "
7621                        + (p.info.nonLocalizedLabel != null
7622                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7623                Log.v(TAG, "    Class=" + p.info.name);
7624            }
7625            final int NI = p.intents.size();
7626            int j;
7627            for (j = 0; j < NI; j++) {
7628                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7629                if (DEBUG_SHOW_INFO) {
7630                    Log.v(TAG, "    IntentFilter:");
7631                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7632                }
7633                if (!intent.debugCheck()) {
7634                    Log.w(TAG, "==> For Provider " + p.info.name);
7635                }
7636                addFilter(intent);
7637            }
7638        }
7639
7640        public final void removeProvider(PackageParser.Provider p) {
7641            mProviders.remove(p.getComponentName());
7642            if (DEBUG_SHOW_INFO) {
7643                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7644                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7645                Log.v(TAG, "    Class=" + p.info.name);
7646            }
7647            final int NI = p.intents.size();
7648            int j;
7649            for (j = 0; j < NI; j++) {
7650                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7651                if (DEBUG_SHOW_INFO) {
7652                    Log.v(TAG, "    IntentFilter:");
7653                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7654                }
7655                removeFilter(intent);
7656            }
7657        }
7658
7659        @Override
7660        protected boolean allowFilterResult(
7661                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7662            ProviderInfo filterPi = filter.provider.info;
7663            for (int i = dest.size() - 1; i >= 0; i--) {
7664                ProviderInfo destPi = dest.get(i).providerInfo;
7665                if (destPi.name == filterPi.name
7666                        && destPi.packageName == filterPi.packageName) {
7667                    return false;
7668                }
7669            }
7670            return true;
7671        }
7672
7673        @Override
7674        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7675            return new PackageParser.ProviderIntentInfo[size];
7676        }
7677
7678        @Override
7679        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7680            if (!sUserManager.exists(userId))
7681                return true;
7682            PackageParser.Package p = filter.provider.owner;
7683            if (p != null) {
7684                PackageSetting ps = (PackageSetting) p.mExtras;
7685                if (ps != null) {
7686                    // System apps are never considered stopped for purposes of
7687                    // filtering, because there may be no way for the user to
7688                    // actually re-launch them.
7689                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7690                            && ps.getStopped(userId);
7691                }
7692            }
7693            return false;
7694        }
7695
7696        @Override
7697        protected boolean isPackageForFilter(String packageName,
7698                PackageParser.ProviderIntentInfo info) {
7699            return packageName.equals(info.provider.owner.packageName);
7700        }
7701
7702        @Override
7703        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7704                int match, int userId) {
7705            if (!sUserManager.exists(userId))
7706                return null;
7707            final PackageParser.ProviderIntentInfo info = filter;
7708            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7709                return null;
7710            }
7711            final PackageParser.Provider provider = info.provider;
7712            if (mSafeMode && (provider.info.applicationInfo.flags
7713                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7714                return null;
7715            }
7716            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7717            if (ps == null) {
7718                return null;
7719            }
7720            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7721                    ps.readUserState(userId), userId);
7722            if (pi == null) {
7723                return null;
7724            }
7725            final ResolveInfo res = new ResolveInfo();
7726            res.providerInfo = pi;
7727            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7728                res.filter = filter;
7729            }
7730            res.priority = info.getPriority();
7731            res.preferredOrder = provider.owner.mPreferredOrder;
7732            res.match = match;
7733            res.isDefault = info.hasDefault;
7734            res.labelRes = info.labelRes;
7735            res.nonLocalizedLabel = info.nonLocalizedLabel;
7736            res.icon = info.icon;
7737            res.system = isSystemApp(res.providerInfo.applicationInfo);
7738            return res;
7739        }
7740
7741        @Override
7742        protected void sortResults(List<ResolveInfo> results) {
7743            Collections.sort(results, mResolvePrioritySorter);
7744        }
7745
7746        @Override
7747        protected void dumpFilter(PrintWriter out, String prefix,
7748                PackageParser.ProviderIntentInfo filter) {
7749            out.print(prefix);
7750            out.print(
7751                    Integer.toHexString(System.identityHashCode(filter.provider)));
7752            out.print(' ');
7753            filter.provider.printComponentShortName(out);
7754            out.print(" filter ");
7755            out.println(Integer.toHexString(System.identityHashCode(filter)));
7756        }
7757
7758        private final HashMap<ComponentName, PackageParser.Provider> mProviders
7759                = new HashMap<ComponentName, PackageParser.Provider>();
7760        private int mFlags;
7761    };
7762
7763    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7764            new Comparator<ResolveInfo>() {
7765        public int compare(ResolveInfo r1, ResolveInfo r2) {
7766            int v1 = r1.priority;
7767            int v2 = r2.priority;
7768            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7769            if (v1 != v2) {
7770                return (v1 > v2) ? -1 : 1;
7771            }
7772            v1 = r1.preferredOrder;
7773            v2 = r2.preferredOrder;
7774            if (v1 != v2) {
7775                return (v1 > v2) ? -1 : 1;
7776            }
7777            if (r1.isDefault != r2.isDefault) {
7778                return r1.isDefault ? -1 : 1;
7779            }
7780            v1 = r1.match;
7781            v2 = r2.match;
7782            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7783            if (v1 != v2) {
7784                return (v1 > v2) ? -1 : 1;
7785            }
7786            if (r1.system != r2.system) {
7787                return r1.system ? -1 : 1;
7788            }
7789            return 0;
7790        }
7791    };
7792
7793    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7794            new Comparator<ProviderInfo>() {
7795        public int compare(ProviderInfo p1, ProviderInfo p2) {
7796            final int v1 = p1.initOrder;
7797            final int v2 = p2.initOrder;
7798            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7799        }
7800    };
7801
7802    static final void sendPackageBroadcast(String action, String pkg,
7803            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7804            int[] userIds) {
7805        IActivityManager am = ActivityManagerNative.getDefault();
7806        if (am != null) {
7807            try {
7808                if (userIds == null) {
7809                    userIds = am.getRunningUserIds();
7810                }
7811                for (int id : userIds) {
7812                    final Intent intent = new Intent(action,
7813                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7814                    if (extras != null) {
7815                        intent.putExtras(extras);
7816                    }
7817                    if (targetPkg != null) {
7818                        intent.setPackage(targetPkg);
7819                    }
7820                    // Modify the UID when posting to other users
7821                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7822                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7823                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7824                        intent.putExtra(Intent.EXTRA_UID, uid);
7825                    }
7826                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7827                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7828                    if (DEBUG_BROADCASTS) {
7829                        RuntimeException here = new RuntimeException("here");
7830                        here.fillInStackTrace();
7831                        Slog.d(TAG, "Sending to user " + id + ": "
7832                                + intent.toShortString(false, true, false, false)
7833                                + " " + intent.getExtras(), here);
7834                    }
7835                    am.broadcastIntent(null, intent, null, finishedReceiver,
7836                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7837                            finishedReceiver != null, false, id);
7838                }
7839            } catch (RemoteException ex) {
7840            }
7841        }
7842    }
7843
7844    /**
7845     * Check if the external storage media is available. This is true if there
7846     * is a mounted external storage medium or if the external storage is
7847     * emulated.
7848     */
7849    private boolean isExternalMediaAvailable() {
7850        return mMediaMounted || Environment.isExternalStorageEmulated();
7851    }
7852
7853    @Override
7854    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7855        // writer
7856        synchronized (mPackages) {
7857            if (!isExternalMediaAvailable()) {
7858                // If the external storage is no longer mounted at this point,
7859                // the caller may not have been able to delete all of this
7860                // packages files and can not delete any more.  Bail.
7861                return null;
7862            }
7863            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7864            if (lastPackage != null) {
7865                pkgs.remove(lastPackage);
7866            }
7867            if (pkgs.size() > 0) {
7868                return pkgs.get(0);
7869            }
7870        }
7871        return null;
7872    }
7873
7874    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7875        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7876                userId, andCode ? 1 : 0, packageName);
7877        if (mSystemReady) {
7878            msg.sendToTarget();
7879        } else {
7880            if (mPostSystemReadyMessages == null) {
7881                mPostSystemReadyMessages = new ArrayList<>();
7882            }
7883            mPostSystemReadyMessages.add(msg);
7884        }
7885    }
7886
7887    void startCleaningPackages() {
7888        // reader
7889        synchronized (mPackages) {
7890            if (!isExternalMediaAvailable()) {
7891                return;
7892            }
7893            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7894                return;
7895            }
7896        }
7897        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7898        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7899        IActivityManager am = ActivityManagerNative.getDefault();
7900        if (am != null) {
7901            try {
7902                am.startService(null, intent, null, UserHandle.USER_OWNER);
7903            } catch (RemoteException e) {
7904            }
7905        }
7906    }
7907
7908    @Override
7909    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7910            int installFlags, String installerPackageName, VerificationParams verificationParams,
7911            String packageAbiOverride) {
7912        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7913                packageAbiOverride, UserHandle.getCallingUserId());
7914    }
7915
7916    @Override
7917    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7918            int installFlags, String installerPackageName, VerificationParams verificationParams,
7919            String packageAbiOverride, int userId) {
7920        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7921
7922        final int callingUid = Binder.getCallingUid();
7923        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7924
7925        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7926            try {
7927                if (observer != null) {
7928                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7929                }
7930            } catch (RemoteException re) {
7931            }
7932            return;
7933        }
7934
7935        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7936            installFlags |= PackageManager.INSTALL_FROM_ADB;
7937
7938        } else {
7939            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7940            // about installerPackageName.
7941
7942            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7943            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7944        }
7945
7946        UserHandle user;
7947        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7948            user = UserHandle.ALL;
7949        } else {
7950            user = new UserHandle(userId);
7951        }
7952
7953        verificationParams.setInstallerUid(callingUid);
7954
7955        final File originFile = new File(originPath);
7956        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7957
7958        final Message msg = mHandler.obtainMessage(INIT_COPY);
7959        msg.obj = new InstallParams(origin, observer, installFlags,
7960                installerPackageName, verificationParams, user, packageAbiOverride);
7961        mHandler.sendMessage(msg);
7962    }
7963
7964    void installStage(String packageName, File stagedDir, String stagedCid,
7965            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7966            String installerPackageName, int installerUid, UserHandle user) {
7967        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7968                params.referrerUri, installerUid, null);
7969
7970        final OriginInfo origin;
7971        if (stagedDir != null) {
7972            origin = OriginInfo.fromStagedFile(stagedDir);
7973        } else {
7974            origin = OriginInfo.fromStagedContainer(stagedCid);
7975        }
7976
7977        final Message msg = mHandler.obtainMessage(INIT_COPY);
7978        msg.obj = new InstallParams(origin, observer, params.installFlags,
7979                installerPackageName, verifParams, user, params.abiOverride);
7980        mHandler.sendMessage(msg);
7981    }
7982
7983    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7984        Bundle extras = new Bundle(1);
7985        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7986
7987        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7988                packageName, extras, null, null, new int[] {userId});
7989        try {
7990            IActivityManager am = ActivityManagerNative.getDefault();
7991            final boolean isSystem =
7992                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7993            if (isSystem && am.isUserRunning(userId, false)) {
7994                // The just-installed/enabled app is bundled on the system, so presumed
7995                // to be able to run automatically without needing an explicit launch.
7996                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7997                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7998                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7999                        .setPackage(packageName);
8000                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
8001                        android.app.AppOpsManager.OP_NONE, false, false, userId);
8002            }
8003        } catch (RemoteException e) {
8004            // shouldn't happen
8005            Slog.w(TAG, "Unable to bootstrap installed package", e);
8006        }
8007    }
8008
8009    @Override
8010    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
8011            int userId) {
8012        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8013        PackageSetting pkgSetting;
8014        final int uid = Binder.getCallingUid();
8015        enforceCrossUserPermission(uid, userId, true, true,
8016                "setApplicationHiddenSetting for user " + userId);
8017
8018        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
8019            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
8020            return false;
8021        }
8022
8023        long callingId = Binder.clearCallingIdentity();
8024        try {
8025            boolean sendAdded = false;
8026            boolean sendRemoved = false;
8027            // writer
8028            synchronized (mPackages) {
8029                pkgSetting = mSettings.mPackages.get(packageName);
8030                if (pkgSetting == null) {
8031                    return false;
8032                }
8033                if (pkgSetting.getHidden(userId) != hidden) {
8034                    pkgSetting.setHidden(hidden, userId);
8035                    mSettings.writePackageRestrictionsLPr(userId);
8036                    if (hidden) {
8037                        sendRemoved = true;
8038                    } else {
8039                        sendAdded = true;
8040                    }
8041                }
8042            }
8043            if (sendAdded) {
8044                sendPackageAddedForUser(packageName, pkgSetting, userId);
8045                return true;
8046            }
8047            if (sendRemoved) {
8048                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8049                        "hiding pkg");
8050                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8051            }
8052        } finally {
8053            Binder.restoreCallingIdentity(callingId);
8054        }
8055        return false;
8056    }
8057
8058    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8059            int userId) {
8060        final PackageRemovedInfo info = new PackageRemovedInfo();
8061        info.removedPackage = packageName;
8062        info.removedUsers = new int[] {userId};
8063        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8064        info.sendBroadcast(false, false, false);
8065    }
8066
8067    /**
8068     * Returns true if application is not found or there was an error. Otherwise it returns
8069     * the hidden state of the package for the given user.
8070     */
8071    @Override
8072    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8073        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8074        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8075                false, "getApplicationHidden for user " + userId);
8076        PackageSetting pkgSetting;
8077        long callingId = Binder.clearCallingIdentity();
8078        try {
8079            // writer
8080            synchronized (mPackages) {
8081                pkgSetting = mSettings.mPackages.get(packageName);
8082                if (pkgSetting == null) {
8083                    return true;
8084                }
8085                return pkgSetting.getHidden(userId);
8086            }
8087        } finally {
8088            Binder.restoreCallingIdentity(callingId);
8089        }
8090    }
8091
8092    /**
8093     * @hide
8094     */
8095    @Override
8096    public int installExistingPackageAsUser(String packageName, int userId) {
8097        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8098                null);
8099        PackageSetting pkgSetting;
8100        final int uid = Binder.getCallingUid();
8101        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8102                + userId);
8103        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8104            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8105        }
8106
8107        long callingId = Binder.clearCallingIdentity();
8108        try {
8109            boolean sendAdded = false;
8110            Bundle extras = new Bundle(1);
8111
8112            // writer
8113            synchronized (mPackages) {
8114                pkgSetting = mSettings.mPackages.get(packageName);
8115                if (pkgSetting == null) {
8116                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8117                }
8118                if (!pkgSetting.getInstalled(userId)) {
8119                    pkgSetting.setInstalled(true, userId);
8120                    pkgSetting.setHidden(false, userId);
8121                    mSettings.writePackageRestrictionsLPr(userId);
8122                    sendAdded = true;
8123                }
8124            }
8125
8126            if (sendAdded) {
8127                sendPackageAddedForUser(packageName, pkgSetting, userId);
8128            }
8129        } finally {
8130            Binder.restoreCallingIdentity(callingId);
8131        }
8132
8133        return PackageManager.INSTALL_SUCCEEDED;
8134    }
8135
8136    boolean isUserRestricted(int userId, String restrictionKey) {
8137        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8138        if (restrictions.getBoolean(restrictionKey, false)) {
8139            Log.w(TAG, "User is restricted: " + restrictionKey);
8140            return true;
8141        }
8142        return false;
8143    }
8144
8145    @Override
8146    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8147        mContext.enforceCallingOrSelfPermission(
8148                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8149                "Only package verification agents can verify applications");
8150
8151        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8152        final PackageVerificationResponse response = new PackageVerificationResponse(
8153                verificationCode, Binder.getCallingUid());
8154        msg.arg1 = id;
8155        msg.obj = response;
8156        mHandler.sendMessage(msg);
8157    }
8158
8159    @Override
8160    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8161            long millisecondsToDelay) {
8162        mContext.enforceCallingOrSelfPermission(
8163                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8164                "Only package verification agents can extend verification timeouts");
8165
8166        final PackageVerificationState state = mPendingVerification.get(id);
8167        final PackageVerificationResponse response = new PackageVerificationResponse(
8168                verificationCodeAtTimeout, Binder.getCallingUid());
8169
8170        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8171            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8172        }
8173        if (millisecondsToDelay < 0) {
8174            millisecondsToDelay = 0;
8175        }
8176        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8177                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8178            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8179        }
8180
8181        if ((state != null) && !state.timeoutExtended()) {
8182            state.extendTimeout();
8183
8184            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8185            msg.arg1 = id;
8186            msg.obj = response;
8187            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8188        }
8189    }
8190
8191    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8192            int verificationCode, UserHandle user) {
8193        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8194        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8195        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8196        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8197        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8198
8199        mContext.sendBroadcastAsUser(intent, user,
8200                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8201    }
8202
8203    private ComponentName matchComponentForVerifier(String packageName,
8204            List<ResolveInfo> receivers) {
8205        ActivityInfo targetReceiver = null;
8206
8207        final int NR = receivers.size();
8208        for (int i = 0; i < NR; i++) {
8209            final ResolveInfo info = receivers.get(i);
8210            if (info.activityInfo == null) {
8211                continue;
8212            }
8213
8214            if (packageName.equals(info.activityInfo.packageName)) {
8215                targetReceiver = info.activityInfo;
8216                break;
8217            }
8218        }
8219
8220        if (targetReceiver == null) {
8221            return null;
8222        }
8223
8224        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8225    }
8226
8227    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8228            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8229        if (pkgInfo.verifiers.length == 0) {
8230            return null;
8231        }
8232
8233        final int N = pkgInfo.verifiers.length;
8234        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8235        for (int i = 0; i < N; i++) {
8236            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8237
8238            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8239                    receivers);
8240            if (comp == null) {
8241                continue;
8242            }
8243
8244            final int verifierUid = getUidForVerifier(verifierInfo);
8245            if (verifierUid == -1) {
8246                continue;
8247            }
8248
8249            if (DEBUG_VERIFY) {
8250                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8251                        + " with the correct signature");
8252            }
8253            sufficientVerifiers.add(comp);
8254            verificationState.addSufficientVerifier(verifierUid);
8255        }
8256
8257        return sufficientVerifiers;
8258    }
8259
8260    private int getUidForVerifier(VerifierInfo verifierInfo) {
8261        synchronized (mPackages) {
8262            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8263            if (pkg == null) {
8264                return -1;
8265            } else if (pkg.mSignatures.length != 1) {
8266                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8267                        + " has more than one signature; ignoring");
8268                return -1;
8269            }
8270
8271            /*
8272             * If the public key of the package's signature does not match
8273             * our expected public key, then this is a different package and
8274             * we should skip.
8275             */
8276
8277            final byte[] expectedPublicKey;
8278            try {
8279                final Signature verifierSig = pkg.mSignatures[0];
8280                final PublicKey publicKey = verifierSig.getPublicKey();
8281                expectedPublicKey = publicKey.getEncoded();
8282            } catch (CertificateException e) {
8283                return -1;
8284            }
8285
8286            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8287
8288            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8289                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8290                        + " does not have the expected public key; ignoring");
8291                return -1;
8292            }
8293
8294            return pkg.applicationInfo.uid;
8295        }
8296    }
8297
8298    @Override
8299    public void finishPackageInstall(int token) {
8300        enforceSystemOrRoot("Only the system is allowed to finish installs");
8301
8302        if (DEBUG_INSTALL) {
8303            Slog.v(TAG, "BM finishing package install for " + token);
8304        }
8305
8306        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8307        mHandler.sendMessage(msg);
8308    }
8309
8310    /**
8311     * Get the verification agent timeout.
8312     *
8313     * @return verification timeout in milliseconds
8314     */
8315    private long getVerificationTimeout() {
8316        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8317                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8318                DEFAULT_VERIFICATION_TIMEOUT);
8319    }
8320
8321    /**
8322     * Get the default verification agent response code.
8323     *
8324     * @return default verification response code
8325     */
8326    private int getDefaultVerificationResponse() {
8327        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8328                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8329                DEFAULT_VERIFICATION_RESPONSE);
8330    }
8331
8332    /**
8333     * Check whether or not package verification has been enabled.
8334     *
8335     * @return true if verification should be performed
8336     */
8337    private boolean isVerificationEnabled(int userId, int installFlags) {
8338        if (!DEFAULT_VERIFY_ENABLE) {
8339            return false;
8340        }
8341
8342        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8343
8344        // Check if installing from ADB
8345        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8346            // Do not run verification in a test harness environment
8347            if (ActivityManager.isRunningInTestHarness()) {
8348                return false;
8349            }
8350            if (ensureVerifyAppsEnabled) {
8351                return true;
8352            }
8353            // Check if the developer does not want package verification for ADB installs
8354            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8355                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8356                return false;
8357            }
8358        }
8359
8360        if (ensureVerifyAppsEnabled) {
8361            return true;
8362        }
8363
8364        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8365                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8366    }
8367
8368    /**
8369     * Get the "allow unknown sources" setting.
8370     *
8371     * @return the current "allow unknown sources" setting
8372     */
8373    private int getUnknownSourcesSettings() {
8374        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8375                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8376                -1);
8377    }
8378
8379    @Override
8380    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8381        final int uid = Binder.getCallingUid();
8382        // writer
8383        synchronized (mPackages) {
8384            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8385            if (targetPackageSetting == null) {
8386                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8387            }
8388
8389            PackageSetting installerPackageSetting;
8390            if (installerPackageName != null) {
8391                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8392                if (installerPackageSetting == null) {
8393                    throw new IllegalArgumentException("Unknown installer package: "
8394                            + installerPackageName);
8395                }
8396            } else {
8397                installerPackageSetting = null;
8398            }
8399
8400            Signature[] callerSignature;
8401            Object obj = mSettings.getUserIdLPr(uid);
8402            if (obj != null) {
8403                if (obj instanceof SharedUserSetting) {
8404                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8405                } else if (obj instanceof PackageSetting) {
8406                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8407                } else {
8408                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8409                }
8410            } else {
8411                throw new SecurityException("Unknown calling uid " + uid);
8412            }
8413
8414            // Verify: can't set installerPackageName to a package that is
8415            // not signed with the same cert as the caller.
8416            if (installerPackageSetting != null) {
8417                if (compareSignatures(callerSignature,
8418                        installerPackageSetting.signatures.mSignatures)
8419                        != PackageManager.SIGNATURE_MATCH) {
8420                    throw new SecurityException(
8421                            "Caller does not have same cert as new installer package "
8422                            + installerPackageName);
8423                }
8424            }
8425
8426            // Verify: if target already has an installer package, it must
8427            // be signed with the same cert as the caller.
8428            if (targetPackageSetting.installerPackageName != null) {
8429                PackageSetting setting = mSettings.mPackages.get(
8430                        targetPackageSetting.installerPackageName);
8431                // If the currently set package isn't valid, then it's always
8432                // okay to change it.
8433                if (setting != null) {
8434                    if (compareSignatures(callerSignature,
8435                            setting.signatures.mSignatures)
8436                            != PackageManager.SIGNATURE_MATCH) {
8437                        throw new SecurityException(
8438                                "Caller does not have same cert as old installer package "
8439                                + targetPackageSetting.installerPackageName);
8440                    }
8441                }
8442            }
8443
8444            // Okay!
8445            targetPackageSetting.installerPackageName = installerPackageName;
8446            scheduleWriteSettingsLocked();
8447        }
8448    }
8449
8450    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8451        // Queue up an async operation since the package installation may take a little while.
8452        mHandler.post(new Runnable() {
8453            public void run() {
8454                mHandler.removeCallbacks(this);
8455                 // Result object to be returned
8456                PackageInstalledInfo res = new PackageInstalledInfo();
8457                res.returnCode = currentStatus;
8458                res.uid = -1;
8459                res.pkg = null;
8460                res.removedInfo = new PackageRemovedInfo();
8461                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8462                    args.doPreInstall(res.returnCode);
8463                    synchronized (mInstallLock) {
8464                        installPackageLI(args, res);
8465                    }
8466                    args.doPostInstall(res.returnCode, res.uid);
8467                }
8468
8469                // A restore should be performed at this point if (a) the install
8470                // succeeded, (b) the operation is not an update, and (c) the new
8471                // package has not opted out of backup participation.
8472                final boolean update = res.removedInfo.removedPackage != null;
8473                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8474                boolean doRestore = !update
8475                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8476
8477                // Set up the post-install work request bookkeeping.  This will be used
8478                // and cleaned up by the post-install event handling regardless of whether
8479                // there's a restore pass performed.  Token values are >= 1.
8480                int token;
8481                if (mNextInstallToken < 0) mNextInstallToken = 1;
8482                token = mNextInstallToken++;
8483
8484                PostInstallData data = new PostInstallData(args, res);
8485                mRunningInstalls.put(token, data);
8486                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8487
8488                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8489                    // Pass responsibility to the Backup Manager.  It will perform a
8490                    // restore if appropriate, then pass responsibility back to the
8491                    // Package Manager to run the post-install observer callbacks
8492                    // and broadcasts.
8493                    IBackupManager bm = IBackupManager.Stub.asInterface(
8494                            ServiceManager.getService(Context.BACKUP_SERVICE));
8495                    if (bm != null) {
8496                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8497                                + " to BM for possible restore");
8498                        try {
8499                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8500                        } catch (RemoteException e) {
8501                            // can't happen; the backup manager is local
8502                        } catch (Exception e) {
8503                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8504                            doRestore = false;
8505                        }
8506                    } else {
8507                        Slog.e(TAG, "Backup Manager not found!");
8508                        doRestore = false;
8509                    }
8510                }
8511
8512                if (!doRestore) {
8513                    // No restore possible, or the Backup Manager was mysteriously not
8514                    // available -- just fire the post-install work request directly.
8515                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8516                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8517                    mHandler.sendMessage(msg);
8518                }
8519            }
8520        });
8521    }
8522
8523    private abstract class HandlerParams {
8524        private static final int MAX_RETRIES = 4;
8525
8526        /**
8527         * Number of times startCopy() has been attempted and had a non-fatal
8528         * error.
8529         */
8530        private int mRetries = 0;
8531
8532        /** User handle for the user requesting the information or installation. */
8533        private final UserHandle mUser;
8534
8535        HandlerParams(UserHandle user) {
8536            mUser = user;
8537        }
8538
8539        UserHandle getUser() {
8540            return mUser;
8541        }
8542
8543        final boolean startCopy() {
8544            boolean res;
8545            try {
8546                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8547
8548                if (++mRetries > MAX_RETRIES) {
8549                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8550                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8551                    handleServiceError();
8552                    return false;
8553                } else {
8554                    handleStartCopy();
8555                    res = true;
8556                }
8557            } catch (RemoteException e) {
8558                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8559                mHandler.sendEmptyMessage(MCS_RECONNECT);
8560                res = false;
8561            }
8562            handleReturnCode();
8563            return res;
8564        }
8565
8566        final void serviceError() {
8567            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8568            handleServiceError();
8569            handleReturnCode();
8570        }
8571
8572        abstract void handleStartCopy() throws RemoteException;
8573        abstract void handleServiceError();
8574        abstract void handleReturnCode();
8575    }
8576
8577    class MeasureParams extends HandlerParams {
8578        private final PackageStats mStats;
8579        private boolean mSuccess;
8580
8581        private final IPackageStatsObserver mObserver;
8582
8583        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8584            super(new UserHandle(stats.userHandle));
8585            mObserver = observer;
8586            mStats = stats;
8587        }
8588
8589        @Override
8590        public String toString() {
8591            return "MeasureParams{"
8592                + Integer.toHexString(System.identityHashCode(this))
8593                + " " + mStats.packageName + "}";
8594        }
8595
8596        @Override
8597        void handleStartCopy() throws RemoteException {
8598            synchronized (mInstallLock) {
8599                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8600            }
8601
8602            if (mSuccess) {
8603                final boolean mounted;
8604                if (Environment.isExternalStorageEmulated()) {
8605                    mounted = true;
8606                } else {
8607                    final String status = Environment.getExternalStorageState();
8608                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8609                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8610                }
8611
8612                if (mounted) {
8613                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8614
8615                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8616                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8617
8618                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8619                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8620
8621                    // Always subtract cache size, since it's a subdirectory
8622                    mStats.externalDataSize -= mStats.externalCacheSize;
8623
8624                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8625                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8626
8627                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8628                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8629                }
8630            }
8631        }
8632
8633        @Override
8634        void handleReturnCode() {
8635            if (mObserver != null) {
8636                try {
8637                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8638                } catch (RemoteException e) {
8639                    Slog.i(TAG, "Observer no longer exists.");
8640                }
8641            }
8642        }
8643
8644        @Override
8645        void handleServiceError() {
8646            Slog.e(TAG, "Could not measure application " + mStats.packageName
8647                            + " external storage");
8648        }
8649    }
8650
8651    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8652            throws RemoteException {
8653        long result = 0;
8654        for (File path : paths) {
8655            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8656        }
8657        return result;
8658    }
8659
8660    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8661        for (File path : paths) {
8662            try {
8663                mcs.clearDirectory(path.getAbsolutePath());
8664            } catch (RemoteException e) {
8665            }
8666        }
8667    }
8668
8669    static class OriginInfo {
8670        /**
8671         * Location where install is coming from, before it has been
8672         * copied/renamed into place. This could be a single monolithic APK
8673         * file, or a cluster directory. This location may be untrusted.
8674         */
8675        final File file;
8676        final String cid;
8677
8678        /**
8679         * Flag indicating that {@link #file} or {@link #cid} has already been
8680         * staged, meaning downstream users don't need to defensively copy the
8681         * contents.
8682         */
8683        final boolean staged;
8684
8685        /**
8686         * Flag indicating that {@link #file} or {@link #cid} is an already
8687         * installed app that is being moved.
8688         */
8689        final boolean existing;
8690
8691        final String resolvedPath;
8692        final File resolvedFile;
8693
8694        static OriginInfo fromNothing() {
8695            return new OriginInfo(null, null, false, false);
8696        }
8697
8698        static OriginInfo fromUntrustedFile(File file) {
8699            return new OriginInfo(file, null, false, false);
8700        }
8701
8702        static OriginInfo fromExistingFile(File file) {
8703            return new OriginInfo(file, null, false, true);
8704        }
8705
8706        static OriginInfo fromStagedFile(File file) {
8707            return new OriginInfo(file, null, true, false);
8708        }
8709
8710        static OriginInfo fromStagedContainer(String cid) {
8711            return new OriginInfo(null, cid, true, false);
8712        }
8713
8714        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8715            this.file = file;
8716            this.cid = cid;
8717            this.staged = staged;
8718            this.existing = existing;
8719
8720            if (cid != null) {
8721                resolvedPath = PackageHelper.getSdDir(cid);
8722                resolvedFile = new File(resolvedPath);
8723            } else if (file != null) {
8724                resolvedPath = file.getAbsolutePath();
8725                resolvedFile = file;
8726            } else {
8727                resolvedPath = null;
8728                resolvedFile = null;
8729            }
8730        }
8731    }
8732
8733    class InstallParams extends HandlerParams {
8734        final OriginInfo origin;
8735        final IPackageInstallObserver2 observer;
8736        int installFlags;
8737        final String installerPackageName;
8738        final VerificationParams verificationParams;
8739        private InstallArgs mArgs;
8740        private int mRet;
8741        final String packageAbiOverride;
8742
8743        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8744                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8745                String packageAbiOverride) {
8746            super(user);
8747            this.origin = origin;
8748            this.observer = observer;
8749            this.installFlags = installFlags;
8750            this.installerPackageName = installerPackageName;
8751            this.verificationParams = verificationParams;
8752            this.packageAbiOverride = packageAbiOverride;
8753        }
8754
8755        @Override
8756        public String toString() {
8757            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8758                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8759        }
8760
8761        public ManifestDigest getManifestDigest() {
8762            if (verificationParams == null) {
8763                return null;
8764            }
8765            return verificationParams.getManifestDigest();
8766        }
8767
8768        private int installLocationPolicy(PackageInfoLite pkgLite) {
8769            String packageName = pkgLite.packageName;
8770            int installLocation = pkgLite.installLocation;
8771            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8772            // reader
8773            synchronized (mPackages) {
8774                PackageParser.Package pkg = mPackages.get(packageName);
8775                if (pkg != null) {
8776                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8777                        // Check for downgrading.
8778                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8779                            if (pkgLite.versionCode < pkg.mVersionCode) {
8780                                Slog.w(TAG, "Can't install update of " + packageName
8781                                        + " update version " + pkgLite.versionCode
8782                                        + " is older than installed version "
8783                                        + pkg.mVersionCode);
8784                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8785                            }
8786                        }
8787                        // Check for updated system application.
8788                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8789                            if (onSd) {
8790                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8791                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8792                            }
8793                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8794                        } else {
8795                            if (onSd) {
8796                                // Install flag overrides everything.
8797                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8798                            }
8799                            // If current upgrade specifies particular preference
8800                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8801                                // Application explicitly specified internal.
8802                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8803                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8804                                // App explictly prefers external. Let policy decide
8805                            } else {
8806                                // Prefer previous location
8807                                if (isExternal(pkg)) {
8808                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8809                                }
8810                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8811                            }
8812                        }
8813                    } else {
8814                        // Invalid install. Return error code
8815                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8816                    }
8817                }
8818            }
8819            // All the special cases have been taken care of.
8820            // Return result based on recommended install location.
8821            if (onSd) {
8822                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8823            }
8824            return pkgLite.recommendedInstallLocation;
8825        }
8826
8827        /*
8828         * Invoke remote method to get package information and install
8829         * location values. Override install location based on default
8830         * policy if needed and then create install arguments based
8831         * on the install location.
8832         */
8833        public void handleStartCopy() throws RemoteException {
8834            int ret = PackageManager.INSTALL_SUCCEEDED;
8835
8836            // If we're already staged, we've firmly committed to an install location
8837            if (origin.staged) {
8838                if (origin.file != null) {
8839                    installFlags |= PackageManager.INSTALL_INTERNAL;
8840                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8841                } else if (origin.cid != null) {
8842                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8843                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8844                } else {
8845                    throw new IllegalStateException("Invalid stage location");
8846                }
8847            }
8848
8849            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8850            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8851
8852            PackageInfoLite pkgLite = null;
8853
8854            if (onInt && onSd) {
8855                // Check if both bits are set.
8856                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8857                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8858            } else {
8859                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8860                        packageAbiOverride);
8861
8862                /*
8863                 * If we have too little free space, try to free cache
8864                 * before giving up.
8865                 */
8866                if (!origin.staged && pkgLite.recommendedInstallLocation
8867                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8868                    // TODO: focus freeing disk space on the target device
8869                    final StorageManager storage = StorageManager.from(mContext);
8870                    final long lowThreshold = storage.getStorageLowBytes(
8871                            Environment.getDataDirectory());
8872
8873                    final long sizeBytes = mContainerService.calculateInstalledSize(
8874                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8875
8876                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8877                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8878                                installFlags, packageAbiOverride);
8879                    }
8880
8881                    /*
8882                     * The cache free must have deleted the file we
8883                     * downloaded to install.
8884                     *
8885                     * TODO: fix the "freeCache" call to not delete
8886                     *       the file we care about.
8887                     */
8888                    if (pkgLite.recommendedInstallLocation
8889                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8890                        pkgLite.recommendedInstallLocation
8891                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8892                    }
8893                }
8894            }
8895
8896            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8897                int loc = pkgLite.recommendedInstallLocation;
8898                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8899                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8900                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8901                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8902                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8903                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8904                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8905                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8906                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8907                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8908                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8909                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8910                } else {
8911                    // Override with defaults if needed.
8912                    loc = installLocationPolicy(pkgLite);
8913                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8914                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8915                    } else if (!onSd && !onInt) {
8916                        // Override install location with flags
8917                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8918                            // Set the flag to install on external media.
8919                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8920                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8921                        } else {
8922                            // Make sure the flag for installing on external
8923                            // media is unset
8924                            installFlags |= PackageManager.INSTALL_INTERNAL;
8925                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8926                        }
8927                    }
8928                }
8929            }
8930
8931            final InstallArgs args = createInstallArgs(this);
8932            mArgs = args;
8933
8934            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8935                 /*
8936                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8937                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8938                 */
8939                int userIdentifier = getUser().getIdentifier();
8940                if (userIdentifier == UserHandle.USER_ALL
8941                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8942                    userIdentifier = UserHandle.USER_OWNER;
8943                }
8944
8945                /*
8946                 * Determine if we have any installed package verifiers. If we
8947                 * do, then we'll defer to them to verify the packages.
8948                 */
8949                final int requiredUid = mRequiredVerifierPackage == null ? -1
8950                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8951                if (!origin.existing && requiredUid != -1
8952                        && isVerificationEnabled(userIdentifier, installFlags)) {
8953                    final Intent verification = new Intent(
8954                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8955                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8956                            PACKAGE_MIME_TYPE);
8957                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8958
8959                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8960                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8961                            0 /* TODO: Which userId? */);
8962
8963                    if (DEBUG_VERIFY) {
8964                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8965                                + verification.toString() + " with " + pkgLite.verifiers.length
8966                                + " optional verifiers");
8967                    }
8968
8969                    final int verificationId = mPendingVerificationToken++;
8970
8971                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8972
8973                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8974                            installerPackageName);
8975
8976                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8977                            installFlags);
8978
8979                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8980                            pkgLite.packageName);
8981
8982                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8983                            pkgLite.versionCode);
8984
8985                    if (verificationParams != null) {
8986                        if (verificationParams.getVerificationURI() != null) {
8987                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8988                                 verificationParams.getVerificationURI());
8989                        }
8990                        if (verificationParams.getOriginatingURI() != null) {
8991                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8992                                  verificationParams.getOriginatingURI());
8993                        }
8994                        if (verificationParams.getReferrer() != null) {
8995                            verification.putExtra(Intent.EXTRA_REFERRER,
8996                                  verificationParams.getReferrer());
8997                        }
8998                        if (verificationParams.getOriginatingUid() >= 0) {
8999                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
9000                                  verificationParams.getOriginatingUid());
9001                        }
9002                        if (verificationParams.getInstallerUid() >= 0) {
9003                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
9004                                  verificationParams.getInstallerUid());
9005                        }
9006                    }
9007
9008                    final PackageVerificationState verificationState = new PackageVerificationState(
9009                            requiredUid, args);
9010
9011                    mPendingVerification.append(verificationId, verificationState);
9012
9013                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
9014                            receivers, verificationState);
9015
9016                    /*
9017                     * If any sufficient verifiers were listed in the package
9018                     * manifest, attempt to ask them.
9019                     */
9020                    if (sufficientVerifiers != null) {
9021                        final int N = sufficientVerifiers.size();
9022                        if (N == 0) {
9023                            Slog.i(TAG, "Additional verifiers required, but none installed.");
9024                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9025                        } else {
9026                            for (int i = 0; i < N; i++) {
9027                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9028
9029                                final Intent sufficientIntent = new Intent(verification);
9030                                sufficientIntent.setComponent(verifierComponent);
9031
9032                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9033                            }
9034                        }
9035                    }
9036
9037                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9038                            mRequiredVerifierPackage, receivers);
9039                    if (ret == PackageManager.INSTALL_SUCCEEDED
9040                            && mRequiredVerifierPackage != null) {
9041                        /*
9042                         * Send the intent to the required verification agent,
9043                         * but only start the verification timeout after the
9044                         * target BroadcastReceivers have run.
9045                         */
9046                        verification.setComponent(requiredVerifierComponent);
9047                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9048                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9049                                new BroadcastReceiver() {
9050                                    @Override
9051                                    public void onReceive(Context context, Intent intent) {
9052                                        final Message msg = mHandler
9053                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9054                                        msg.arg1 = verificationId;
9055                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9056                                    }
9057                                }, null, 0, null, null);
9058
9059                        /*
9060                         * We don't want the copy to proceed until verification
9061                         * succeeds, so null out this field.
9062                         */
9063                        mArgs = null;
9064                    }
9065                } else {
9066                    /*
9067                     * No package verification is enabled, so immediately start
9068                     * the remote call to initiate copy using temporary file.
9069                     */
9070                    ret = args.copyApk(mContainerService, true);
9071                }
9072            }
9073
9074            mRet = ret;
9075        }
9076
9077        @Override
9078        void handleReturnCode() {
9079            // If mArgs is null, then MCS couldn't be reached. When it
9080            // reconnects, it will try again to install. At that point, this
9081            // will succeed.
9082            if (mArgs != null) {
9083                processPendingInstall(mArgs, mRet);
9084            }
9085        }
9086
9087        @Override
9088        void handleServiceError() {
9089            mArgs = createInstallArgs(this);
9090            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9091        }
9092
9093        public boolean isForwardLocked() {
9094            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9095        }
9096    }
9097
9098    /**
9099     * Used during creation of InstallArgs
9100     *
9101     * @param installFlags package installation flags
9102     * @return true if should be installed on external storage
9103     */
9104    private static boolean installOnSd(int installFlags) {
9105        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9106            return false;
9107        }
9108        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9109            return true;
9110        }
9111        return false;
9112    }
9113
9114    /**
9115     * Used during creation of InstallArgs
9116     *
9117     * @param installFlags package installation flags
9118     * @return true if should be installed as forward locked
9119     */
9120    private static boolean installForwardLocked(int installFlags) {
9121        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9122    }
9123
9124    private InstallArgs createInstallArgs(InstallParams params) {
9125        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9126            return new AsecInstallArgs(params);
9127        } else {
9128            return new FileInstallArgs(params);
9129        }
9130    }
9131
9132    /**
9133     * Create args that describe an existing installed package. Typically used
9134     * when cleaning up old installs, or used as a move source.
9135     */
9136    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9137            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9138        final boolean isInAsec;
9139        if (installOnSd(installFlags)) {
9140            /* Apps on SD card are always in ASEC containers. */
9141            isInAsec = true;
9142        } else if (installForwardLocked(installFlags)
9143                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9144            /*
9145             * Forward-locked apps are only in ASEC containers if they're the
9146             * new style
9147             */
9148            isInAsec = true;
9149        } else {
9150            isInAsec = false;
9151        }
9152
9153        if (isInAsec) {
9154            return new AsecInstallArgs(codePath, instructionSets,
9155                    installOnSd(installFlags), installForwardLocked(installFlags));
9156        } else {
9157            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9158                    instructionSets);
9159        }
9160    }
9161
9162    static abstract class InstallArgs {
9163        /** @see InstallParams#origin */
9164        final OriginInfo origin;
9165
9166        final IPackageInstallObserver2 observer;
9167        // Always refers to PackageManager flags only
9168        final int installFlags;
9169        final String installerPackageName;
9170        final ManifestDigest manifestDigest;
9171        final UserHandle user;
9172        final String abiOverride;
9173
9174        // The list of instruction sets supported by this app. This is currently
9175        // only used during the rmdex() phase to clean up resources. We can get rid of this
9176        // if we move dex files under the common app path.
9177        /* nullable */ String[] instructionSets;
9178
9179        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9180                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9181                String[] instructionSets, String abiOverride) {
9182            this.origin = origin;
9183            this.installFlags = installFlags;
9184            this.observer = observer;
9185            this.installerPackageName = installerPackageName;
9186            this.manifestDigest = manifestDigest;
9187            this.user = user;
9188            this.instructionSets = instructionSets;
9189            this.abiOverride = abiOverride;
9190        }
9191
9192        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9193        abstract int doPreInstall(int status);
9194
9195        /**
9196         * Rename package into final resting place. All paths on the given
9197         * scanned package should be updated to reflect the rename.
9198         */
9199        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9200        abstract int doPostInstall(int status, int uid);
9201
9202        /** @see PackageSettingBase#codePathString */
9203        abstract String getCodePath();
9204        /** @see PackageSettingBase#resourcePathString */
9205        abstract String getResourcePath();
9206        abstract String getLegacyNativeLibraryPath();
9207
9208        // Need installer lock especially for dex file removal.
9209        abstract void cleanUpResourcesLI();
9210        abstract boolean doPostDeleteLI(boolean delete);
9211        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9212
9213        /**
9214         * Called before the source arguments are copied. This is used mostly
9215         * for MoveParams when it needs to read the source file to put it in the
9216         * destination.
9217         */
9218        int doPreCopy() {
9219            return PackageManager.INSTALL_SUCCEEDED;
9220        }
9221
9222        /**
9223         * Called after the source arguments are copied. This is used mostly for
9224         * MoveParams when it needs to read the source file to put it in the
9225         * destination.
9226         *
9227         * @return
9228         */
9229        int doPostCopy(int uid) {
9230            return PackageManager.INSTALL_SUCCEEDED;
9231        }
9232
9233        protected boolean isFwdLocked() {
9234            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9235        }
9236
9237        protected boolean isExternal() {
9238            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9239        }
9240
9241        UserHandle getUser() {
9242            return user;
9243        }
9244    }
9245
9246    /**
9247     * Logic to handle installation of non-ASEC applications, including copying
9248     * and renaming logic.
9249     */
9250    class FileInstallArgs extends InstallArgs {
9251        private File codeFile;
9252        private File resourceFile;
9253        private File legacyNativeLibraryPath;
9254
9255        // Example topology:
9256        // /data/app/com.example/base.apk
9257        // /data/app/com.example/split_foo.apk
9258        // /data/app/com.example/lib/arm/libfoo.so
9259        // /data/app/com.example/lib/arm64/libfoo.so
9260        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9261
9262        /** New install */
9263        FileInstallArgs(InstallParams params) {
9264            super(params.origin, params.observer, params.installFlags,
9265                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9266                    null /* instruction sets */, params.packageAbiOverride);
9267            if (isFwdLocked()) {
9268                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9269            }
9270        }
9271
9272        /** Existing install */
9273        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9274                String[] instructionSets) {
9275            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9276            this.codeFile = (codePath != null) ? new File(codePath) : null;
9277            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9278            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9279                    new File(legacyNativeLibraryPath) : null;
9280        }
9281
9282        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9283            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9284                    isFwdLocked(), abiOverride);
9285
9286            final StorageManager storage = StorageManager.from(mContext);
9287            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9288        }
9289
9290        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9291            if (origin.staged) {
9292                Slog.d(TAG, origin.file + " already staged; skipping copy");
9293                codeFile = origin.file;
9294                resourceFile = origin.file;
9295                return PackageManager.INSTALL_SUCCEEDED;
9296            }
9297
9298            try {
9299                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9300                codeFile = tempDir;
9301                resourceFile = tempDir;
9302            } catch (IOException e) {
9303                Slog.w(TAG, "Failed to create copy file: " + e);
9304                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9305            }
9306
9307            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9308                @Override
9309                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9310                    if (!FileUtils.isValidExtFilename(name)) {
9311                        throw new IllegalArgumentException("Invalid filename: " + name);
9312                    }
9313                    try {
9314                        final File file = new File(codeFile, name);
9315                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9316                                O_RDWR | O_CREAT, 0644);
9317                        Os.chmod(file.getAbsolutePath(), 0644);
9318                        return new ParcelFileDescriptor(fd);
9319                    } catch (ErrnoException e) {
9320                        throw new RemoteException("Failed to open: " + e.getMessage());
9321                    }
9322                }
9323            };
9324
9325            int ret = PackageManager.INSTALL_SUCCEEDED;
9326            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9327            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9328                Slog.e(TAG, "Failed to copy package");
9329                return ret;
9330            }
9331
9332            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9333            NativeLibraryHelper.Handle handle = null;
9334            try {
9335                handle = NativeLibraryHelper.Handle.create(codeFile);
9336                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9337                        abiOverride);
9338            } catch (IOException e) {
9339                Slog.e(TAG, "Copying native libraries failed", e);
9340                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9341            } finally {
9342                IoUtils.closeQuietly(handle);
9343            }
9344
9345            return ret;
9346        }
9347
9348        int doPreInstall(int status) {
9349            if (status != PackageManager.INSTALL_SUCCEEDED) {
9350                cleanUp();
9351            }
9352            return status;
9353        }
9354
9355        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9356            if (status != PackageManager.INSTALL_SUCCEEDED) {
9357                cleanUp();
9358                return false;
9359            } else {
9360                final File beforeCodeFile = codeFile;
9361                final File afterCodeFile = getNextCodePath(pkg.packageName);
9362
9363                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9364                try {
9365                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9366                } catch (ErrnoException e) {
9367                    Slog.d(TAG, "Failed to rename", e);
9368                    return false;
9369                }
9370
9371                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9372                    Slog.d(TAG, "Failed to restorecon");
9373                    return false;
9374                }
9375
9376                // Reflect the rename internally
9377                codeFile = afterCodeFile;
9378                resourceFile = afterCodeFile;
9379
9380                // Reflect the rename in scanned details
9381                pkg.codePath = afterCodeFile.getAbsolutePath();
9382                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9383                        pkg.baseCodePath);
9384                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9385                        pkg.splitCodePaths);
9386
9387                // Reflect the rename in app info
9388                pkg.applicationInfo.setCodePath(pkg.codePath);
9389                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9390                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9391                pkg.applicationInfo.setResourcePath(pkg.codePath);
9392                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9393                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9394
9395                return true;
9396            }
9397        }
9398
9399        int doPostInstall(int status, int uid) {
9400            if (status != PackageManager.INSTALL_SUCCEEDED) {
9401                cleanUp();
9402            }
9403            return status;
9404        }
9405
9406        @Override
9407        String getCodePath() {
9408            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9409        }
9410
9411        @Override
9412        String getResourcePath() {
9413            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9414        }
9415
9416        @Override
9417        String getLegacyNativeLibraryPath() {
9418            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9419        }
9420
9421        private boolean cleanUp() {
9422            if (codeFile == null || !codeFile.exists()) {
9423                return false;
9424            }
9425
9426            if (codeFile.isDirectory()) {
9427                FileUtils.deleteContents(codeFile);
9428            }
9429            codeFile.delete();
9430
9431            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9432                resourceFile.delete();
9433            }
9434
9435            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9436                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9437                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9438                }
9439                legacyNativeLibraryPath.delete();
9440            }
9441
9442            return true;
9443        }
9444
9445        void cleanUpResourcesLI() {
9446            // Try enumerating all code paths before deleting
9447            List<String> allCodePaths = Collections.EMPTY_LIST;
9448            if (codeFile != null && codeFile.exists()) {
9449                try {
9450                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9451                    allCodePaths = pkg.getAllCodePaths();
9452                } catch (PackageParserException e) {
9453                    // Ignored; we tried our best
9454                }
9455            }
9456
9457            cleanUp();
9458
9459            if (!allCodePaths.isEmpty()) {
9460                if (instructionSets == null) {
9461                    throw new IllegalStateException("instructionSet == null");
9462                }
9463                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9464                for (String codePath : allCodePaths) {
9465                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9466                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9467                        if (retCode < 0) {
9468                            Slog.w(TAG, "Couldn't remove dex file for package: "
9469                                    + " at location " + codePath + ", retcode=" + retCode);
9470                            // we don't consider this to be a failure of the core package deletion
9471                        }
9472                    }
9473                }
9474            }
9475        }
9476
9477        boolean doPostDeleteLI(boolean delete) {
9478            // XXX err, shouldn't we respect the delete flag?
9479            cleanUpResourcesLI();
9480            return true;
9481        }
9482    }
9483
9484    private boolean isAsecExternal(String cid) {
9485        final String asecPath = PackageHelper.getSdFilesystem(cid);
9486        return !asecPath.startsWith(mAsecInternalPath);
9487    }
9488
9489    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9490            PackageManagerException {
9491        if (copyRet < 0) {
9492            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9493                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9494                throw new PackageManagerException(copyRet, message);
9495            }
9496        }
9497    }
9498
9499    /**
9500     * Extract the MountService "container ID" from the full code path of an
9501     * .apk.
9502     */
9503    static String cidFromCodePath(String fullCodePath) {
9504        int eidx = fullCodePath.lastIndexOf("/");
9505        String subStr1 = fullCodePath.substring(0, eidx);
9506        int sidx = subStr1.lastIndexOf("/");
9507        return subStr1.substring(sidx+1, eidx);
9508    }
9509
9510    /**
9511     * Logic to handle installation of ASEC applications, including copying and
9512     * renaming logic.
9513     */
9514    class AsecInstallArgs extends InstallArgs {
9515        static final String RES_FILE_NAME = "pkg.apk";
9516        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9517
9518        String cid;
9519        String packagePath;
9520        String resourcePath;
9521        String legacyNativeLibraryDir;
9522
9523        /** New install */
9524        AsecInstallArgs(InstallParams params) {
9525            super(params.origin, params.observer, params.installFlags,
9526                    params.installerPackageName, params.getManifestDigest(),
9527                    params.getUser(), null /* instruction sets */,
9528                    params.packageAbiOverride);
9529        }
9530
9531        /** Existing install */
9532        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9533                        boolean isExternal, boolean isForwardLocked) {
9534            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9535                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9536                    instructionSets, null);
9537            // Hackily pretend we're still looking at a full code path
9538            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9539                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9540            }
9541
9542            // Extract cid from fullCodePath
9543            int eidx = fullCodePath.lastIndexOf("/");
9544            String subStr1 = fullCodePath.substring(0, eidx);
9545            int sidx = subStr1.lastIndexOf("/");
9546            cid = subStr1.substring(sidx+1, eidx);
9547            setMountPath(subStr1);
9548        }
9549
9550        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9551            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9552                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9553                    instructionSets, null);
9554            this.cid = cid;
9555            setMountPath(PackageHelper.getSdDir(cid));
9556        }
9557
9558        void createCopyFile() {
9559            cid = mInstallerService.allocateExternalStageCidLegacy();
9560        }
9561
9562        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9563            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9564                    abiOverride);
9565
9566            final File target;
9567            if (isExternal()) {
9568                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9569            } else {
9570                target = Environment.getDataDirectory();
9571            }
9572
9573            final StorageManager storage = StorageManager.from(mContext);
9574            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9575        }
9576
9577        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9578            if (origin.staged) {
9579                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9580                cid = origin.cid;
9581                setMountPath(PackageHelper.getSdDir(cid));
9582                return PackageManager.INSTALL_SUCCEEDED;
9583            }
9584
9585            if (temp) {
9586                createCopyFile();
9587            } else {
9588                /*
9589                 * Pre-emptively destroy the container since it's destroyed if
9590                 * copying fails due to it existing anyway.
9591                 */
9592                PackageHelper.destroySdDir(cid);
9593            }
9594
9595            final String newMountPath = imcs.copyPackageToContainer(
9596                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9597                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9598
9599            if (newMountPath != null) {
9600                setMountPath(newMountPath);
9601                return PackageManager.INSTALL_SUCCEEDED;
9602            } else {
9603                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9604            }
9605        }
9606
9607        @Override
9608        String getCodePath() {
9609            return packagePath;
9610        }
9611
9612        @Override
9613        String getResourcePath() {
9614            return resourcePath;
9615        }
9616
9617        @Override
9618        String getLegacyNativeLibraryPath() {
9619            return legacyNativeLibraryDir;
9620        }
9621
9622        int doPreInstall(int status) {
9623            if (status != PackageManager.INSTALL_SUCCEEDED) {
9624                // Destroy container
9625                PackageHelper.destroySdDir(cid);
9626            } else {
9627                boolean mounted = PackageHelper.isContainerMounted(cid);
9628                if (!mounted) {
9629                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9630                            Process.SYSTEM_UID);
9631                    if (newMountPath != null) {
9632                        setMountPath(newMountPath);
9633                    } else {
9634                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9635                    }
9636                }
9637            }
9638            return status;
9639        }
9640
9641        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9642            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9643            String newMountPath = null;
9644            if (PackageHelper.isContainerMounted(cid)) {
9645                // Unmount the container
9646                if (!PackageHelper.unMountSdDir(cid)) {
9647                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9648                    return false;
9649                }
9650            }
9651            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9652                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9653                        " which might be stale. Will try to clean up.");
9654                // Clean up the stale container and proceed to recreate.
9655                if (!PackageHelper.destroySdDir(newCacheId)) {
9656                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9657                    return false;
9658                }
9659                // Successfully cleaned up stale container. Try to rename again.
9660                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9661                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9662                            + " inspite of cleaning it up.");
9663                    return false;
9664                }
9665            }
9666            if (!PackageHelper.isContainerMounted(newCacheId)) {
9667                Slog.w(TAG, "Mounting container " + newCacheId);
9668                newMountPath = PackageHelper.mountSdDir(newCacheId,
9669                        getEncryptKey(), Process.SYSTEM_UID);
9670            } else {
9671                newMountPath = PackageHelper.getSdDir(newCacheId);
9672            }
9673            if (newMountPath == null) {
9674                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9675                return false;
9676            }
9677            Log.i(TAG, "Succesfully renamed " + cid +
9678                    " to " + newCacheId +
9679                    " at new path: " + newMountPath);
9680            cid = newCacheId;
9681
9682            final File beforeCodeFile = new File(packagePath);
9683            setMountPath(newMountPath);
9684            final File afterCodeFile = new File(packagePath);
9685
9686            // Reflect the rename in scanned details
9687            pkg.codePath = afterCodeFile.getAbsolutePath();
9688            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9689                    pkg.baseCodePath);
9690            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9691                    pkg.splitCodePaths);
9692
9693            // Reflect the rename in app info
9694            pkg.applicationInfo.setCodePath(pkg.codePath);
9695            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9696            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9697            pkg.applicationInfo.setResourcePath(pkg.codePath);
9698            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9699            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9700
9701            return true;
9702        }
9703
9704        private void setMountPath(String mountPath) {
9705            final File mountFile = new File(mountPath);
9706
9707            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9708            if (monolithicFile.exists()) {
9709                packagePath = monolithicFile.getAbsolutePath();
9710                if (isFwdLocked()) {
9711                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9712                } else {
9713                    resourcePath = packagePath;
9714                }
9715            } else {
9716                packagePath = mountFile.getAbsolutePath();
9717                resourcePath = packagePath;
9718            }
9719
9720            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9721        }
9722
9723        int doPostInstall(int status, int uid) {
9724            if (status != PackageManager.INSTALL_SUCCEEDED) {
9725                cleanUp();
9726            } else {
9727                final int groupOwner;
9728                final String protectedFile;
9729                if (isFwdLocked()) {
9730                    groupOwner = UserHandle.getSharedAppGid(uid);
9731                    protectedFile = RES_FILE_NAME;
9732                } else {
9733                    groupOwner = -1;
9734                    protectedFile = null;
9735                }
9736
9737                if (uid < Process.FIRST_APPLICATION_UID
9738                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9739                    Slog.e(TAG, "Failed to finalize " + cid);
9740                    PackageHelper.destroySdDir(cid);
9741                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9742                }
9743
9744                boolean mounted = PackageHelper.isContainerMounted(cid);
9745                if (!mounted) {
9746                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9747                }
9748            }
9749            return status;
9750        }
9751
9752        private void cleanUp() {
9753            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9754
9755            // Destroy secure container
9756            PackageHelper.destroySdDir(cid);
9757        }
9758
9759        private List<String> getAllCodePaths() {
9760            final File codeFile = new File(getCodePath());
9761            if (codeFile != null && codeFile.exists()) {
9762                try {
9763                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9764                    return pkg.getAllCodePaths();
9765                } catch (PackageParserException e) {
9766                    // Ignored; we tried our best
9767                }
9768            }
9769            return Collections.EMPTY_LIST;
9770        }
9771
9772        void cleanUpResourcesLI() {
9773            // Enumerate all code paths before deleting
9774            cleanUpResourcesLI(getAllCodePaths());
9775        }
9776
9777        private void cleanUpResourcesLI(List<String> allCodePaths) {
9778            cleanUp();
9779
9780            if (!allCodePaths.isEmpty()) {
9781                if (instructionSets == null) {
9782                    throw new IllegalStateException("instructionSet == null");
9783                }
9784                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9785                for (String codePath : allCodePaths) {
9786                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9787                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9788                        if (retCode < 0) {
9789                            Slog.w(TAG, "Couldn't remove dex file for package: "
9790                                    + " at location " + codePath + ", retcode=" + retCode);
9791                            // we don't consider this to be a failure of the core package deletion
9792                        }
9793                    }
9794                }
9795            }
9796        }
9797
9798        boolean matchContainer(String app) {
9799            if (cid.startsWith(app)) {
9800                return true;
9801            }
9802            return false;
9803        }
9804
9805        String getPackageName() {
9806            return getAsecPackageName(cid);
9807        }
9808
9809        boolean doPostDeleteLI(boolean delete) {
9810            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9811            final List<String> allCodePaths = getAllCodePaths();
9812            boolean mounted = PackageHelper.isContainerMounted(cid);
9813            if (mounted) {
9814                // Unmount first
9815                if (PackageHelper.unMountSdDir(cid)) {
9816                    mounted = false;
9817                }
9818            }
9819            if (!mounted && delete) {
9820                cleanUpResourcesLI(allCodePaths);
9821            }
9822            return !mounted;
9823        }
9824
9825        @Override
9826        int doPreCopy() {
9827            if (isFwdLocked()) {
9828                if (!PackageHelper.fixSdPermissions(cid,
9829                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9830                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9831                }
9832            }
9833
9834            return PackageManager.INSTALL_SUCCEEDED;
9835        }
9836
9837        @Override
9838        int doPostCopy(int uid) {
9839            if (isFwdLocked()) {
9840                if (uid < Process.FIRST_APPLICATION_UID
9841                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9842                                RES_FILE_NAME)) {
9843                    Slog.e(TAG, "Failed to finalize " + cid);
9844                    PackageHelper.destroySdDir(cid);
9845                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9846                }
9847            }
9848
9849            return PackageManager.INSTALL_SUCCEEDED;
9850        }
9851    }
9852
9853    static String getAsecPackageName(String packageCid) {
9854        int idx = packageCid.lastIndexOf("-");
9855        if (idx == -1) {
9856            return packageCid;
9857        }
9858        return packageCid.substring(0, idx);
9859    }
9860
9861    // Utility method used to create code paths based on package name and available index.
9862    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9863        String idxStr = "";
9864        int idx = 1;
9865        // Fall back to default value of idx=1 if prefix is not
9866        // part of oldCodePath
9867        if (oldCodePath != null) {
9868            String subStr = oldCodePath;
9869            // Drop the suffix right away
9870            if (suffix != null && subStr.endsWith(suffix)) {
9871                subStr = subStr.substring(0, subStr.length() - suffix.length());
9872            }
9873            // If oldCodePath already contains prefix find out the
9874            // ending index to either increment or decrement.
9875            int sidx = subStr.lastIndexOf(prefix);
9876            if (sidx != -1) {
9877                subStr = subStr.substring(sidx + prefix.length());
9878                if (subStr != null) {
9879                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9880                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9881                    }
9882                    try {
9883                        idx = Integer.parseInt(subStr);
9884                        if (idx <= 1) {
9885                            idx++;
9886                        } else {
9887                            idx--;
9888                        }
9889                    } catch(NumberFormatException e) {
9890                    }
9891                }
9892            }
9893        }
9894        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9895        return prefix + idxStr;
9896    }
9897
9898    private File getNextCodePath(String packageName) {
9899        int suffix = 1;
9900        File result;
9901        do {
9902            result = new File(mAppInstallDir, packageName + "-" + suffix);
9903            suffix++;
9904        } while (result.exists());
9905        return result;
9906    }
9907
9908    // Utility method used to ignore ADD/REMOVE events
9909    // by directory observer.
9910    private static boolean ignoreCodePath(String fullPathStr) {
9911        String apkName = deriveCodePathName(fullPathStr);
9912        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9913        if (idx != -1 && ((idx+1) < apkName.length())) {
9914            // Make sure the package ends with a numeral
9915            String version = apkName.substring(idx+1);
9916            try {
9917                Integer.parseInt(version);
9918                return true;
9919            } catch (NumberFormatException e) {}
9920        }
9921        return false;
9922    }
9923
9924    // Utility method that returns the relative package path with respect
9925    // to the installation directory. Like say for /data/data/com.test-1.apk
9926    // string com.test-1 is returned.
9927    static String deriveCodePathName(String codePath) {
9928        if (codePath == null) {
9929            return null;
9930        }
9931        final File codeFile = new File(codePath);
9932        final String name = codeFile.getName();
9933        if (codeFile.isDirectory()) {
9934            return name;
9935        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9936            final int lastDot = name.lastIndexOf('.');
9937            return name.substring(0, lastDot);
9938        } else {
9939            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9940            return null;
9941        }
9942    }
9943
9944    class PackageInstalledInfo {
9945        String name;
9946        int uid;
9947        // The set of users that originally had this package installed.
9948        int[] origUsers;
9949        // The set of users that now have this package installed.
9950        int[] newUsers;
9951        PackageParser.Package pkg;
9952        int returnCode;
9953        String returnMsg;
9954        PackageRemovedInfo removedInfo;
9955
9956        public void setError(int code, String msg) {
9957            returnCode = code;
9958            returnMsg = msg;
9959            Slog.w(TAG, msg);
9960        }
9961
9962        public void setError(String msg, PackageParserException e) {
9963            returnCode = e.error;
9964            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9965            Slog.w(TAG, msg, e);
9966        }
9967
9968        public void setError(String msg, PackageManagerException e) {
9969            returnCode = e.error;
9970            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9971            Slog.w(TAG, msg, e);
9972        }
9973
9974        // In some error cases we want to convey more info back to the observer
9975        String origPackage;
9976        String origPermission;
9977    }
9978
9979    /*
9980     * Install a non-existing package.
9981     */
9982    private void installNewPackageLI(PackageParser.Package pkg,
9983            int parseFlags, int scanFlags, UserHandle user,
9984            String installerPackageName, PackageInstalledInfo res) {
9985        // Remember this for later, in case we need to rollback this install
9986        String pkgName = pkg.packageName;
9987
9988        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9989        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9990        synchronized(mPackages) {
9991            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9992                // A package with the same name is already installed, though
9993                // it has been renamed to an older name.  The package we
9994                // are trying to install should be installed as an update to
9995                // the existing one, but that has not been requested, so bail.
9996                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9997                        + " without first uninstalling package running as "
9998                        + mSettings.mRenamedPackages.get(pkgName));
9999                return;
10000            }
10001            if (mPackages.containsKey(pkgName)) {
10002                // Don't allow installation over an existing package with the same name.
10003                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10004                        + " without first uninstalling.");
10005                return;
10006            }
10007        }
10008
10009        try {
10010            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
10011                    System.currentTimeMillis(), user);
10012
10013            updateSettingsLI(newPackage, installerPackageName, null, null, res);
10014            // delete the partially installed application. the data directory will have to be
10015            // restored if it was already existing
10016            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10017                // remove package from internal structures.  Note that we want deletePackageX to
10018                // delete the package data and cache directories that it created in
10019                // scanPackageLocked, unless those directories existed before we even tried to
10020                // install.
10021                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
10022                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
10023                                res.removedInfo, true);
10024            }
10025
10026        } catch (PackageManagerException e) {
10027            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10028        }
10029    }
10030
10031    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
10032        // Upgrade keysets are being used.  Determine if new package has a superset of the
10033        // required keys.
10034        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
10035        KeySetManagerService ksms = mSettings.mKeySetManagerService;
10036        for (int i = 0; i < upgradeKeySets.length; i++) {
10037            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
10038            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
10039                return true;
10040            }
10041        }
10042        return false;
10043    }
10044
10045    private void replacePackageLI(PackageParser.Package pkg,
10046            int parseFlags, int scanFlags, UserHandle user,
10047            String installerPackageName, PackageInstalledInfo res) {
10048        PackageParser.Package oldPackage;
10049        String pkgName = pkg.packageName;
10050        int[] allUsers;
10051        boolean[] perUserInstalled;
10052
10053        // First find the old package info and check signatures
10054        synchronized(mPackages) {
10055            oldPackage = mPackages.get(pkgName);
10056            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10057            PackageSetting ps = mSettings.mPackages.get(pkgName);
10058            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10059                // default to original signature matching
10060                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10061                    != PackageManager.SIGNATURE_MATCH) {
10062                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10063                            "New package has a different signature: " + pkgName);
10064                    return;
10065                }
10066            } else {
10067                if(!checkUpgradeKeySetLP(ps, pkg)) {
10068                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10069                            "New package not signed by keys specified by upgrade-keysets: "
10070                            + pkgName);
10071                    return;
10072                }
10073            }
10074
10075            // In case of rollback, remember per-user/profile install state
10076            allUsers = sUserManager.getUserIds();
10077            perUserInstalled = new boolean[allUsers.length];
10078            for (int i = 0; i < allUsers.length; i++) {
10079                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10080            }
10081        }
10082
10083        boolean sysPkg = (isSystemApp(oldPackage));
10084        if (sysPkg) {
10085            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10086                    user, allUsers, perUserInstalled, installerPackageName, res);
10087        } else {
10088            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10089                    user, allUsers, perUserInstalled, installerPackageName, res);
10090        }
10091    }
10092
10093    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10094            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10095            int[] allUsers, boolean[] perUserInstalled,
10096            String installerPackageName, PackageInstalledInfo res) {
10097        String pkgName = deletedPackage.packageName;
10098        boolean deletedPkg = true;
10099        boolean updatedSettings = false;
10100
10101        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10102                + deletedPackage);
10103        long origUpdateTime;
10104        if (pkg.mExtras != null) {
10105            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10106        } else {
10107            origUpdateTime = 0;
10108        }
10109
10110        // First delete the existing package while retaining the data directory
10111        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10112                res.removedInfo, true)) {
10113            // If the existing package wasn't successfully deleted
10114            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10115            deletedPkg = false;
10116        } else {
10117            // Successfully deleted the old package; proceed with replace.
10118
10119            // If deleted package lived in a container, give users a chance to
10120            // relinquish resources before killing.
10121            if (isForwardLocked(deletedPackage) || isExternal(deletedPackage)) {
10122                if (DEBUG_INSTALL) {
10123                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10124                }
10125                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10126                final ArrayList<String> pkgList = new ArrayList<String>(1);
10127                pkgList.add(deletedPackage.applicationInfo.packageName);
10128                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10129            }
10130
10131            deleteCodeCacheDirsLI(pkgName);
10132            try {
10133                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10134                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10135                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10136                updatedSettings = true;
10137            } catch (PackageManagerException e) {
10138                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10139            }
10140        }
10141
10142        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10143            // remove package from internal structures.  Note that we want deletePackageX to
10144            // delete the package data and cache directories that it created in
10145            // scanPackageLocked, unless those directories existed before we even tried to
10146            // install.
10147            if(updatedSettings) {
10148                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10149                deletePackageLI(
10150                        pkgName, null, true, allUsers, perUserInstalled,
10151                        PackageManager.DELETE_KEEP_DATA,
10152                                res.removedInfo, true);
10153            }
10154            // Since we failed to install the new package we need to restore the old
10155            // package that we deleted.
10156            if (deletedPkg) {
10157                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10158                File restoreFile = new File(deletedPackage.codePath);
10159                // Parse old package
10160                boolean oldOnSd = isExternal(deletedPackage);
10161                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10162                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10163                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10164                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10165                try {
10166                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10167                } catch (PackageManagerException e) {
10168                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10169                            + e.getMessage());
10170                    return;
10171                }
10172                // Restore of old package succeeded. Update permissions.
10173                // writer
10174                synchronized (mPackages) {
10175                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10176                            UPDATE_PERMISSIONS_ALL);
10177                    // can downgrade to reader
10178                    mSettings.writeLPr();
10179                }
10180                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10181            }
10182        }
10183    }
10184
10185    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10186            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10187            int[] allUsers, boolean[] perUserInstalled,
10188            String installerPackageName, PackageInstalledInfo res) {
10189        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10190                + ", old=" + deletedPackage);
10191        boolean disabledSystem = false;
10192        boolean updatedSettings = false;
10193        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10194        if ((deletedPackage.applicationInfo.privateFlags&ApplicationInfo.PRIVATE_FLAG_PRIVILEGED)
10195                != 0) {
10196            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10197        }
10198        String packageName = deletedPackage.packageName;
10199        if (packageName == null) {
10200            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10201                    "Attempt to delete null packageName.");
10202            return;
10203        }
10204        PackageParser.Package oldPkg;
10205        PackageSetting oldPkgSetting;
10206        // reader
10207        synchronized (mPackages) {
10208            oldPkg = mPackages.get(packageName);
10209            oldPkgSetting = mSettings.mPackages.get(packageName);
10210            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10211                    (oldPkgSetting == null)) {
10212                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10213                        "Couldn't find package:" + packageName + " information");
10214                return;
10215            }
10216        }
10217
10218        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10219
10220        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10221        res.removedInfo.removedPackage = packageName;
10222        // Remove existing system package
10223        removePackageLI(oldPkgSetting, true);
10224        // writer
10225        synchronized (mPackages) {
10226            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10227            if (!disabledSystem && deletedPackage != null) {
10228                // We didn't need to disable the .apk as a current system package,
10229                // which means we are replacing another update that is already
10230                // installed.  We need to make sure to delete the older one's .apk.
10231                res.removedInfo.args = createInstallArgsForExisting(0,
10232                        deletedPackage.applicationInfo.getCodePath(),
10233                        deletedPackage.applicationInfo.getResourcePath(),
10234                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10235                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10236            } else {
10237                res.removedInfo.args = null;
10238            }
10239        }
10240
10241        // Successfully disabled the old package. Now proceed with re-installation
10242        deleteCodeCacheDirsLI(packageName);
10243
10244        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10245        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10246
10247        PackageParser.Package newPackage = null;
10248        try {
10249            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10250            if (newPackage.mExtras != null) {
10251                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10252                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10253                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10254
10255                // is the update attempting to change shared user? that isn't going to work...
10256                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10257                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10258                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10259                            + " to " + newPkgSetting.sharedUser);
10260                    updatedSettings = true;
10261                }
10262            }
10263
10264            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10265                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10266                updatedSettings = true;
10267            }
10268
10269        } catch (PackageManagerException e) {
10270            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10271        }
10272
10273        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10274            // Re installation failed. Restore old information
10275            // Remove new pkg information
10276            if (newPackage != null) {
10277                removeInstalledPackageLI(newPackage, true);
10278            }
10279            // Add back the old system package
10280            try {
10281                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10282            } catch (PackageManagerException e) {
10283                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10284            }
10285            // Restore the old system information in Settings
10286            synchronized (mPackages) {
10287                if (disabledSystem) {
10288                    mSettings.enableSystemPackageLPw(packageName);
10289                }
10290                if (updatedSettings) {
10291                    mSettings.setInstallerPackageName(packageName,
10292                            oldPkgSetting.installerPackageName);
10293                }
10294                mSettings.writeLPr();
10295            }
10296        }
10297    }
10298
10299    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10300            int[] allUsers, boolean[] perUserInstalled,
10301            PackageInstalledInfo res) {
10302        String pkgName = newPackage.packageName;
10303        synchronized (mPackages) {
10304            //write settings. the installStatus will be incomplete at this stage.
10305            //note that the new package setting would have already been
10306            //added to mPackages. It hasn't been persisted yet.
10307            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10308            mSettings.writeLPr();
10309        }
10310
10311        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10312
10313        synchronized (mPackages) {
10314            updatePermissionsLPw(newPackage.packageName, newPackage,
10315                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10316                            ? UPDATE_PERMISSIONS_ALL : 0));
10317            // For system-bundled packages, we assume that installing an upgraded version
10318            // of the package implies that the user actually wants to run that new code,
10319            // so we enable the package.
10320            if (isSystemApp(newPackage)) {
10321                // NB: implicit assumption that system package upgrades apply to all users
10322                if (DEBUG_INSTALL) {
10323                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10324                }
10325                PackageSetting ps = mSettings.mPackages.get(pkgName);
10326                if (ps != null) {
10327                    if (res.origUsers != null) {
10328                        for (int userHandle : res.origUsers) {
10329                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10330                                    userHandle, installerPackageName);
10331                        }
10332                    }
10333                    // Also convey the prior install/uninstall state
10334                    if (allUsers != null && perUserInstalled != null) {
10335                        for (int i = 0; i < allUsers.length; i++) {
10336                            if (DEBUG_INSTALL) {
10337                                Slog.d(TAG, "    user " + allUsers[i]
10338                                        + " => " + perUserInstalled[i]);
10339                            }
10340                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10341                        }
10342                        // these install state changes will be persisted in the
10343                        // upcoming call to mSettings.writeLPr().
10344                    }
10345                }
10346            }
10347            res.name = pkgName;
10348            res.uid = newPackage.applicationInfo.uid;
10349            res.pkg = newPackage;
10350            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10351            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10352            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10353            //to update install status
10354            mSettings.writeLPr();
10355        }
10356    }
10357
10358    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10359        final int installFlags = args.installFlags;
10360        String installerPackageName = args.installerPackageName;
10361        File tmpPackageFile = new File(args.getCodePath());
10362        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10363        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10364        boolean replace = false;
10365        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10366        // Result object to be returned
10367        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10368
10369        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10370        // Retrieve PackageSettings and parse package
10371        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10372                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10373                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10374        PackageParser pp = new PackageParser();
10375        pp.setSeparateProcesses(mSeparateProcesses);
10376        pp.setDisplayMetrics(mMetrics);
10377
10378        final PackageParser.Package pkg;
10379        try {
10380            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10381        } catch (PackageParserException e) {
10382            res.setError("Failed parse during installPackageLI", e);
10383            return;
10384        }
10385
10386        // Mark that we have an install time CPU ABI override.
10387        pkg.cpuAbiOverride = args.abiOverride;
10388
10389        String pkgName = res.name = pkg.packageName;
10390        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10391            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10392                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10393                return;
10394            }
10395        }
10396
10397        try {
10398            pp.collectCertificates(pkg, parseFlags);
10399            pp.collectManifestDigest(pkg);
10400        } catch (PackageParserException e) {
10401            res.setError("Failed collect during installPackageLI", e);
10402            return;
10403        }
10404
10405        /* If the installer passed in a manifest digest, compare it now. */
10406        if (args.manifestDigest != null) {
10407            if (DEBUG_INSTALL) {
10408                final String parsedManifest = pkg.manifestDigest == null ? "null"
10409                        : pkg.manifestDigest.toString();
10410                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10411                        + parsedManifest);
10412            }
10413
10414            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10415                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10416                return;
10417            }
10418        } else if (DEBUG_INSTALL) {
10419            final String parsedManifest = pkg.manifestDigest == null
10420                    ? "null" : pkg.manifestDigest.toString();
10421            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10422        }
10423
10424        // Get rid of all references to package scan path via parser.
10425        pp = null;
10426        String oldCodePath = null;
10427        boolean systemApp = false;
10428        synchronized (mPackages) {
10429            // Check whether the newly-scanned package wants to define an already-defined perm
10430            int N = pkg.permissions.size();
10431            for (int i = N-1; i >= 0; i--) {
10432                PackageParser.Permission perm = pkg.permissions.get(i);
10433                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10434                if (bp != null) {
10435                    // If the defining package is signed with our cert, it's okay.  This
10436                    // also includes the "updating the same package" case, of course.
10437                    // "updating same package" could also involve key-rotation.
10438                    final boolean sigsOk;
10439                    if (!bp.sourcePackage.equals(pkg.packageName)
10440                            || !(bp.packageSetting instanceof PackageSetting)
10441                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10442                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10443                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10444                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10445                    } else {
10446                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10447                    }
10448                    if (!sigsOk) {
10449                        // If the owning package is the system itself, we log but allow
10450                        // install to proceed; we fail the install on all other permission
10451                        // redefinitions.
10452                        if (!bp.sourcePackage.equals("android")) {
10453                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10454                                    + pkg.packageName + " attempting to redeclare permission "
10455                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10456                            res.origPermission = perm.info.name;
10457                            res.origPackage = bp.sourcePackage;
10458                            return;
10459                        } else {
10460                            Slog.w(TAG, "Package " + pkg.packageName
10461                                    + " attempting to redeclare system permission "
10462                                    + perm.info.name + "; ignoring new declaration");
10463                            pkg.permissions.remove(i);
10464                        }
10465                    }
10466                }
10467            }
10468
10469            // Check if installing already existing package
10470            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10471                String oldName = mSettings.mRenamedPackages.get(pkgName);
10472                if (pkg.mOriginalPackages != null
10473                        && pkg.mOriginalPackages.contains(oldName)
10474                        && mPackages.containsKey(oldName)) {
10475                    // This package is derived from an original package,
10476                    // and this device has been updating from that original
10477                    // name.  We must continue using the original name, so
10478                    // rename the new package here.
10479                    pkg.setPackageName(oldName);
10480                    pkgName = pkg.packageName;
10481                    replace = true;
10482                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10483                            + oldName + " pkgName=" + pkgName);
10484                } else if (mPackages.containsKey(pkgName)) {
10485                    // This package, under its official name, already exists
10486                    // on the device; we should replace it.
10487                    replace = true;
10488                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10489                }
10490            }
10491            PackageSetting ps = mSettings.mPackages.get(pkgName);
10492            if (ps != null) {
10493                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10494                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10495                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10496                    systemApp = (ps.pkg.applicationInfo.flags &
10497                            ApplicationInfo.FLAG_SYSTEM) != 0;
10498                }
10499                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10500            }
10501        }
10502
10503        if (systemApp && onSd) {
10504            // Disable updates to system apps on sdcard
10505            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10506                    "Cannot install updates to system apps on sdcard");
10507            return;
10508        }
10509
10510        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10511            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10512            return;
10513        }
10514
10515        if (replace) {
10516            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10517                    installerPackageName, res);
10518        } else {
10519            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10520                    args.user, installerPackageName, res);
10521        }
10522        synchronized (mPackages) {
10523            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10524            if (ps != null) {
10525                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10526            }
10527        }
10528    }
10529
10530    private static boolean isForwardLocked(PackageParser.Package pkg) {
10531        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK) != 0;
10532    }
10533
10534    private static boolean isForwardLocked(ApplicationInfo info) {
10535        return (info.privateFlags & ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK) != 0;
10536    }
10537
10538    private boolean isForwardLocked(PackageSetting ps) {
10539        return (ps.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK) != 0;
10540    }
10541
10542    private static boolean isMultiArch(PackageSetting ps) {
10543        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10544    }
10545
10546    private static boolean isMultiArch(ApplicationInfo info) {
10547        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10548    }
10549
10550    private static boolean isExternal(PackageParser.Package pkg) {
10551        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10552    }
10553
10554    private static boolean isExternal(PackageSetting ps) {
10555        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10556    }
10557
10558    private static boolean isExternal(ApplicationInfo info) {
10559        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10560    }
10561
10562    private static boolean isSystemApp(PackageParser.Package pkg) {
10563        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10564    }
10565
10566    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10567        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0;
10568    }
10569
10570    private static boolean isSystemApp(ApplicationInfo info) {
10571        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10572    }
10573
10574    private static boolean isSystemApp(PackageSetting ps) {
10575        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10576    }
10577
10578    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10579        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10580    }
10581
10582    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10583        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10584    }
10585
10586    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10587        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10588    }
10589
10590    private int packageFlagsToInstallFlags(PackageSetting ps) {
10591        int installFlags = 0;
10592        if (isExternal(ps)) {
10593            installFlags |= PackageManager.INSTALL_EXTERNAL;
10594        }
10595        if (isForwardLocked(ps)) {
10596            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10597        }
10598        return installFlags;
10599    }
10600
10601    private void deleteTempPackageFiles() {
10602        final FilenameFilter filter = new FilenameFilter() {
10603            public boolean accept(File dir, String name) {
10604                return name.startsWith("vmdl") && name.endsWith(".tmp");
10605            }
10606        };
10607        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10608            file.delete();
10609        }
10610    }
10611
10612    @Override
10613    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10614            int flags) {
10615        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10616                flags);
10617    }
10618
10619    @Override
10620    public void deletePackage(final String packageName,
10621            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10622        mContext.enforceCallingOrSelfPermission(
10623                android.Manifest.permission.DELETE_PACKAGES, null);
10624        final int uid = Binder.getCallingUid();
10625        if (UserHandle.getUserId(uid) != userId) {
10626            mContext.enforceCallingPermission(
10627                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10628                    "deletePackage for user " + userId);
10629        }
10630        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10631            try {
10632                observer.onPackageDeleted(packageName,
10633                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10634            } catch (RemoteException re) {
10635            }
10636            return;
10637        }
10638
10639        boolean uninstallBlocked = false;
10640        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10641            int[] users = sUserManager.getUserIds();
10642            for (int i = 0; i < users.length; ++i) {
10643                if (getBlockUninstallForUser(packageName, users[i])) {
10644                    uninstallBlocked = true;
10645                    break;
10646                }
10647            }
10648        } else {
10649            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10650        }
10651        if (uninstallBlocked) {
10652            try {
10653                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10654                        null);
10655            } catch (RemoteException re) {
10656            }
10657            return;
10658        }
10659
10660        if (DEBUG_REMOVE) {
10661            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10662        }
10663        // Queue up an async operation since the package deletion may take a little while.
10664        mHandler.post(new Runnable() {
10665            public void run() {
10666                mHandler.removeCallbacks(this);
10667                final int returnCode = deletePackageX(packageName, userId, flags);
10668                if (observer != null) {
10669                    try {
10670                        observer.onPackageDeleted(packageName, returnCode, null);
10671                    } catch (RemoteException e) {
10672                        Log.i(TAG, "Observer no longer exists.");
10673                    } //end catch
10674                } //end if
10675            } //end run
10676        });
10677    }
10678
10679    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10680        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10681                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10682        try {
10683            if (dpm != null) {
10684                if (dpm.isDeviceOwner(packageName)) {
10685                    return true;
10686                }
10687                int[] users;
10688                if (userId == UserHandle.USER_ALL) {
10689                    users = sUserManager.getUserIds();
10690                } else {
10691                    users = new int[]{userId};
10692                }
10693                for (int i = 0; i < users.length; ++i) {
10694                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10695                        return true;
10696                    }
10697                }
10698            }
10699        } catch (RemoteException e) {
10700        }
10701        return false;
10702    }
10703
10704    /**
10705     *  This method is an internal method that could be get invoked either
10706     *  to delete an installed package or to clean up a failed installation.
10707     *  After deleting an installed package, a broadcast is sent to notify any
10708     *  listeners that the package has been installed. For cleaning up a failed
10709     *  installation, the broadcast is not necessary since the package's
10710     *  installation wouldn't have sent the initial broadcast either
10711     *  The key steps in deleting a package are
10712     *  deleting the package information in internal structures like mPackages,
10713     *  deleting the packages base directories through installd
10714     *  updating mSettings to reflect current status
10715     *  persisting settings for later use
10716     *  sending a broadcast if necessary
10717     */
10718    private int deletePackageX(String packageName, int userId, int flags) {
10719        final PackageRemovedInfo info = new PackageRemovedInfo();
10720        final boolean res;
10721
10722        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10723                ? UserHandle.ALL : new UserHandle(userId);
10724
10725        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10726            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10727            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10728        }
10729
10730        boolean removedForAllUsers = false;
10731        boolean systemUpdate = false;
10732
10733        // for the uninstall-updates case and restricted profiles, remember the per-
10734        // userhandle installed state
10735        int[] allUsers;
10736        boolean[] perUserInstalled;
10737        synchronized (mPackages) {
10738            PackageSetting ps = mSettings.mPackages.get(packageName);
10739            allUsers = sUserManager.getUserIds();
10740            perUserInstalled = new boolean[allUsers.length];
10741            for (int i = 0; i < allUsers.length; i++) {
10742                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10743            }
10744        }
10745
10746        synchronized (mInstallLock) {
10747            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10748            res = deletePackageLI(packageName, removeForUser,
10749                    true, allUsers, perUserInstalled,
10750                    flags | REMOVE_CHATTY, info, true);
10751            systemUpdate = info.isRemovedPackageSystemUpdate;
10752            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10753                removedForAllUsers = true;
10754            }
10755            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10756                    + " removedForAllUsers=" + removedForAllUsers);
10757        }
10758
10759        if (res) {
10760            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10761
10762            // If the removed package was a system update, the old system package
10763            // was re-enabled; we need to broadcast this information
10764            if (systemUpdate) {
10765                Bundle extras = new Bundle(1);
10766                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10767                        ? info.removedAppId : info.uid);
10768                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10769
10770                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10771                        extras, null, null, null);
10772                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10773                        extras, null, null, null);
10774                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10775                        null, packageName, null, null);
10776            }
10777        }
10778        // Force a gc here.
10779        Runtime.getRuntime().gc();
10780        // Delete the resources here after sending the broadcast to let
10781        // other processes clean up before deleting resources.
10782        if (info.args != null) {
10783            synchronized (mInstallLock) {
10784                info.args.doPostDeleteLI(true);
10785            }
10786        }
10787
10788        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10789    }
10790
10791    static class PackageRemovedInfo {
10792        String removedPackage;
10793        int uid = -1;
10794        int removedAppId = -1;
10795        int[] removedUsers = null;
10796        boolean isRemovedPackageSystemUpdate = false;
10797        // Clean up resources deleted packages.
10798        InstallArgs args = null;
10799
10800        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10801            Bundle extras = new Bundle(1);
10802            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10803            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10804            if (replacing) {
10805                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10806            }
10807            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10808            if (removedPackage != null) {
10809                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10810                        extras, null, null, removedUsers);
10811                if (fullRemove && !replacing) {
10812                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10813                            extras, null, null, removedUsers);
10814                }
10815            }
10816            if (removedAppId >= 0) {
10817                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10818                        removedUsers);
10819            }
10820        }
10821    }
10822
10823    /*
10824     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10825     * flag is not set, the data directory is removed as well.
10826     * make sure this flag is set for partially installed apps. If not its meaningless to
10827     * delete a partially installed application.
10828     */
10829    private void removePackageDataLI(PackageSetting ps,
10830            int[] allUserHandles, boolean[] perUserInstalled,
10831            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10832        String packageName = ps.name;
10833        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10834        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10835        // Retrieve object to delete permissions for shared user later on
10836        final PackageSetting deletedPs;
10837        // reader
10838        synchronized (mPackages) {
10839            deletedPs = mSettings.mPackages.get(packageName);
10840            if (outInfo != null) {
10841                outInfo.removedPackage = packageName;
10842                outInfo.removedUsers = deletedPs != null
10843                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10844                        : null;
10845            }
10846        }
10847        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10848            removeDataDirsLI(packageName);
10849            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10850        }
10851        // writer
10852        synchronized (mPackages) {
10853            if (deletedPs != null) {
10854                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10855                    if (outInfo != null) {
10856                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10857                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10858                    }
10859                    if (deletedPs != null) {
10860                        updatePermissionsLPw(deletedPs.name, null, 0);
10861                        if (deletedPs.sharedUser != null) {
10862                            // remove permissions associated with package
10863                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10864                        }
10865                    }
10866                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10867                }
10868                // make sure to preserve per-user disabled state if this removal was just
10869                // a downgrade of a system app to the factory package
10870                if (allUserHandles != null && perUserInstalled != null) {
10871                    if (DEBUG_REMOVE) {
10872                        Slog.d(TAG, "Propagating install state across downgrade");
10873                    }
10874                    for (int i = 0; i < allUserHandles.length; i++) {
10875                        if (DEBUG_REMOVE) {
10876                            Slog.d(TAG, "    user " + allUserHandles[i]
10877                                    + " => " + perUserInstalled[i]);
10878                        }
10879                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10880                    }
10881                }
10882            }
10883            // can downgrade to reader
10884            if (writeSettings) {
10885                // Save settings now
10886                mSettings.writeLPr();
10887            }
10888        }
10889        if (outInfo != null) {
10890            // A user ID was deleted here. Go through all users and remove it
10891            // from KeyStore.
10892            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10893        }
10894    }
10895
10896    static boolean locationIsPrivileged(File path) {
10897        try {
10898            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10899                    .getCanonicalPath();
10900            return path.getCanonicalPath().startsWith(privilegedAppDir);
10901        } catch (IOException e) {
10902            Slog.e(TAG, "Unable to access code path " + path);
10903        }
10904        return false;
10905    }
10906
10907    /*
10908     * Tries to delete system package.
10909     */
10910    private boolean deleteSystemPackageLI(PackageSetting newPs,
10911            int[] allUserHandles, boolean[] perUserInstalled,
10912            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10913        final boolean applyUserRestrictions
10914                = (allUserHandles != null) && (perUserInstalled != null);
10915        PackageSetting disabledPs = null;
10916        // Confirm if the system package has been updated
10917        // An updated system app can be deleted. This will also have to restore
10918        // the system pkg from system partition
10919        // reader
10920        synchronized (mPackages) {
10921            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10922        }
10923        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10924                + " disabledPs=" + disabledPs);
10925        if (disabledPs == null) {
10926            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10927            return false;
10928        } else if (DEBUG_REMOVE) {
10929            Slog.d(TAG, "Deleting system pkg from data partition");
10930        }
10931        if (DEBUG_REMOVE) {
10932            if (applyUserRestrictions) {
10933                Slog.d(TAG, "Remembering install states:");
10934                for (int i = 0; i < allUserHandles.length; i++) {
10935                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10936                }
10937            }
10938        }
10939        // Delete the updated package
10940        outInfo.isRemovedPackageSystemUpdate = true;
10941        if (disabledPs.versionCode < newPs.versionCode) {
10942            // Delete data for downgrades
10943            flags &= ~PackageManager.DELETE_KEEP_DATA;
10944        } else {
10945            // Preserve data by setting flag
10946            flags |= PackageManager.DELETE_KEEP_DATA;
10947        }
10948        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10949                allUserHandles, perUserInstalled, outInfo, writeSettings);
10950        if (!ret) {
10951            return false;
10952        }
10953        // writer
10954        synchronized (mPackages) {
10955            // Reinstate the old system package
10956            mSettings.enableSystemPackageLPw(newPs.name);
10957            // Remove any native libraries from the upgraded package.
10958            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10959        }
10960        // Install the system package
10961        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10962        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10963        if (locationIsPrivileged(disabledPs.codePath)) {
10964            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10965        }
10966
10967        final PackageParser.Package newPkg;
10968        try {
10969            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10970        } catch (PackageManagerException e) {
10971            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10972            return false;
10973        }
10974
10975        // writer
10976        synchronized (mPackages) {
10977            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10978            updatePermissionsLPw(newPkg.packageName, newPkg,
10979                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10980            if (applyUserRestrictions) {
10981                if (DEBUG_REMOVE) {
10982                    Slog.d(TAG, "Propagating install state across reinstall");
10983                }
10984                for (int i = 0; i < allUserHandles.length; i++) {
10985                    if (DEBUG_REMOVE) {
10986                        Slog.d(TAG, "    user " + allUserHandles[i]
10987                                + " => " + perUserInstalled[i]);
10988                    }
10989                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10990                }
10991                // Regardless of writeSettings we need to ensure that this restriction
10992                // state propagation is persisted
10993                mSettings.writeAllUsersPackageRestrictionsLPr();
10994            }
10995            // can downgrade to reader here
10996            if (writeSettings) {
10997                mSettings.writeLPr();
10998            }
10999        }
11000        return true;
11001    }
11002
11003    private boolean deleteInstalledPackageLI(PackageSetting ps,
11004            boolean deleteCodeAndResources, int flags,
11005            int[] allUserHandles, boolean[] perUserInstalled,
11006            PackageRemovedInfo outInfo, boolean writeSettings) {
11007        if (outInfo != null) {
11008            outInfo.uid = ps.appId;
11009        }
11010
11011        // Delete package data from internal structures and also remove data if flag is set
11012        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
11013
11014        // Delete application code and resources
11015        if (deleteCodeAndResources && (outInfo != null)) {
11016            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
11017                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
11018                    getAppDexInstructionSets(ps));
11019            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
11020        }
11021        return true;
11022    }
11023
11024    @Override
11025    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
11026            int userId) {
11027        mContext.enforceCallingOrSelfPermission(
11028                android.Manifest.permission.DELETE_PACKAGES, null);
11029        synchronized (mPackages) {
11030            PackageSetting ps = mSettings.mPackages.get(packageName);
11031            if (ps == null) {
11032                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
11033                return false;
11034            }
11035            if (!ps.getInstalled(userId)) {
11036                // Can't block uninstall for an app that is not installed or enabled.
11037                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11038                return false;
11039            }
11040            ps.setBlockUninstall(blockUninstall, userId);
11041            mSettings.writePackageRestrictionsLPr(userId);
11042        }
11043        return true;
11044    }
11045
11046    @Override
11047    public boolean getBlockUninstallForUser(String packageName, int userId) {
11048        synchronized (mPackages) {
11049            PackageSetting ps = mSettings.mPackages.get(packageName);
11050            if (ps == null) {
11051                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11052                return false;
11053            }
11054            return ps.getBlockUninstall(userId);
11055        }
11056    }
11057
11058    /*
11059     * This method handles package deletion in general
11060     */
11061    private boolean deletePackageLI(String packageName, UserHandle user,
11062            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11063            int flags, PackageRemovedInfo outInfo,
11064            boolean writeSettings) {
11065        if (packageName == null) {
11066            Slog.w(TAG, "Attempt to delete null packageName.");
11067            return false;
11068        }
11069        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11070        PackageSetting ps;
11071        boolean dataOnly = false;
11072        int removeUser = -1;
11073        int appId = -1;
11074        synchronized (mPackages) {
11075            ps = mSettings.mPackages.get(packageName);
11076            if (ps == null) {
11077                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11078                return false;
11079            }
11080            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11081                    && user.getIdentifier() != UserHandle.USER_ALL) {
11082                // The caller is asking that the package only be deleted for a single
11083                // user.  To do this, we just mark its uninstalled state and delete
11084                // its data.  If this is a system app, we only allow this to happen if
11085                // they have set the special DELETE_SYSTEM_APP which requests different
11086                // semantics than normal for uninstalling system apps.
11087                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11088                ps.setUserState(user.getIdentifier(),
11089                        COMPONENT_ENABLED_STATE_DEFAULT,
11090                        false, //installed
11091                        true,  //stopped
11092                        true,  //notLaunched
11093                        false, //hidden
11094                        null, null, null,
11095                        false // blockUninstall
11096                        );
11097                if (!isSystemApp(ps)) {
11098                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11099                        // Other user still have this package installed, so all
11100                        // we need to do is clear this user's data and save that
11101                        // it is uninstalled.
11102                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11103                        removeUser = user.getIdentifier();
11104                        appId = ps.appId;
11105                        mSettings.writePackageRestrictionsLPr(removeUser);
11106                    } else {
11107                        // We need to set it back to 'installed' so the uninstall
11108                        // broadcasts will be sent correctly.
11109                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11110                        ps.setInstalled(true, user.getIdentifier());
11111                    }
11112                } else {
11113                    // This is a system app, so we assume that the
11114                    // other users still have this package installed, so all
11115                    // we need to do is clear this user's data and save that
11116                    // it is uninstalled.
11117                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11118                    removeUser = user.getIdentifier();
11119                    appId = ps.appId;
11120                    mSettings.writePackageRestrictionsLPr(removeUser);
11121                }
11122            }
11123        }
11124
11125        if (removeUser >= 0) {
11126            // From above, we determined that we are deleting this only
11127            // for a single user.  Continue the work here.
11128            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11129            if (outInfo != null) {
11130                outInfo.removedPackage = packageName;
11131                outInfo.removedAppId = appId;
11132                outInfo.removedUsers = new int[] {removeUser};
11133            }
11134            mInstaller.clearUserData(packageName, removeUser);
11135            removeKeystoreDataIfNeeded(removeUser, appId);
11136            schedulePackageCleaning(packageName, removeUser, false);
11137            return true;
11138        }
11139
11140        if (dataOnly) {
11141            // Delete application data first
11142            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11143            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11144            return true;
11145        }
11146
11147        boolean ret = false;
11148        if (isSystemApp(ps)) {
11149            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11150            // When an updated system application is deleted we delete the existing resources as well and
11151            // fall back to existing code in system partition
11152            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11153                    flags, outInfo, writeSettings);
11154        } else {
11155            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11156            // Kill application pre-emptively especially for apps on sd.
11157            killApplication(packageName, ps.appId, "uninstall pkg");
11158            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11159                    allUserHandles, perUserInstalled,
11160                    outInfo, writeSettings);
11161        }
11162
11163        return ret;
11164    }
11165
11166    private final class ClearStorageConnection implements ServiceConnection {
11167        IMediaContainerService mContainerService;
11168
11169        @Override
11170        public void onServiceConnected(ComponentName name, IBinder service) {
11171            synchronized (this) {
11172                mContainerService = IMediaContainerService.Stub.asInterface(service);
11173                notifyAll();
11174            }
11175        }
11176
11177        @Override
11178        public void onServiceDisconnected(ComponentName name) {
11179        }
11180    }
11181
11182    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11183        final boolean mounted;
11184        if (Environment.isExternalStorageEmulated()) {
11185            mounted = true;
11186        } else {
11187            final String status = Environment.getExternalStorageState();
11188
11189            mounted = status.equals(Environment.MEDIA_MOUNTED)
11190                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11191        }
11192
11193        if (!mounted) {
11194            return;
11195        }
11196
11197        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11198        int[] users;
11199        if (userId == UserHandle.USER_ALL) {
11200            users = sUserManager.getUserIds();
11201        } else {
11202            users = new int[] { userId };
11203        }
11204        final ClearStorageConnection conn = new ClearStorageConnection();
11205        if (mContext.bindServiceAsUser(
11206                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11207            try {
11208                for (int curUser : users) {
11209                    long timeout = SystemClock.uptimeMillis() + 5000;
11210                    synchronized (conn) {
11211                        long now = SystemClock.uptimeMillis();
11212                        while (conn.mContainerService == null && now < timeout) {
11213                            try {
11214                                conn.wait(timeout - now);
11215                            } catch (InterruptedException e) {
11216                            }
11217                        }
11218                    }
11219                    if (conn.mContainerService == null) {
11220                        return;
11221                    }
11222
11223                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11224                    clearDirectory(conn.mContainerService,
11225                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11226                    if (allData) {
11227                        clearDirectory(conn.mContainerService,
11228                                userEnv.buildExternalStorageAppDataDirs(packageName));
11229                        clearDirectory(conn.mContainerService,
11230                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11231                    }
11232                }
11233            } finally {
11234                mContext.unbindService(conn);
11235            }
11236        }
11237    }
11238
11239    @Override
11240    public void clearApplicationUserData(final String packageName,
11241            final IPackageDataObserver observer, final int userId) {
11242        mContext.enforceCallingOrSelfPermission(
11243                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11244        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11245        // Queue up an async operation since the package deletion may take a little while.
11246        mHandler.post(new Runnable() {
11247            public void run() {
11248                mHandler.removeCallbacks(this);
11249                final boolean succeeded;
11250                synchronized (mInstallLock) {
11251                    succeeded = clearApplicationUserDataLI(packageName, userId);
11252                }
11253                clearExternalStorageDataSync(packageName, userId, true);
11254                if (succeeded) {
11255                    // invoke DeviceStorageMonitor's update method to clear any notifications
11256                    DeviceStorageMonitorInternal
11257                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11258                    if (dsm != null) {
11259                        dsm.checkMemory();
11260                    }
11261                }
11262                if(observer != null) {
11263                    try {
11264                        observer.onRemoveCompleted(packageName, succeeded);
11265                    } catch (RemoteException e) {
11266                        Log.i(TAG, "Observer no longer exists.");
11267                    }
11268                } //end if observer
11269            } //end run
11270        });
11271    }
11272
11273    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11274        if (packageName == null) {
11275            Slog.w(TAG, "Attempt to delete null packageName.");
11276            return false;
11277        }
11278
11279        // Try finding details about the requested package
11280        PackageParser.Package pkg;
11281        synchronized (mPackages) {
11282            pkg = mPackages.get(packageName);
11283            if (pkg == null) {
11284                final PackageSetting ps = mSettings.mPackages.get(packageName);
11285                if (ps != null) {
11286                    pkg = ps.pkg;
11287                }
11288            }
11289        }
11290
11291        if (pkg == null) {
11292            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11293        }
11294
11295        // Always delete data directories for package, even if we found no other
11296        // record of app. This helps users recover from UID mismatches without
11297        // resorting to a full data wipe.
11298        int retCode = mInstaller.clearUserData(packageName, userId);
11299        if (retCode < 0) {
11300            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11301            return false;
11302        }
11303
11304        if (pkg == null) {
11305            return false;
11306        }
11307
11308        if (pkg != null && pkg.applicationInfo != null) {
11309            final int appId = pkg.applicationInfo.uid;
11310            removeKeystoreDataIfNeeded(userId, appId);
11311        }
11312
11313        // Create a native library symlink only if we have native libraries
11314        // and if the native libraries are 32 bit libraries. We do not provide
11315        // this symlink for 64 bit libraries.
11316        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11317                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11318            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11319            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11320                Slog.w(TAG, "Failed linking native library dir");
11321                return false;
11322            }
11323        }
11324
11325        return true;
11326    }
11327
11328    /**
11329     * Remove entries from the keystore daemon. Will only remove it if the
11330     * {@code appId} is valid.
11331     */
11332    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11333        if (appId < 0) {
11334            return;
11335        }
11336
11337        final KeyStore keyStore = KeyStore.getInstance();
11338        if (keyStore != null) {
11339            if (userId == UserHandle.USER_ALL) {
11340                for (final int individual : sUserManager.getUserIds()) {
11341                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11342                }
11343            } else {
11344                keyStore.clearUid(UserHandle.getUid(userId, appId));
11345            }
11346        } else {
11347            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11348        }
11349    }
11350
11351    @Override
11352    public void deleteApplicationCacheFiles(final String packageName,
11353            final IPackageDataObserver observer) {
11354        mContext.enforceCallingOrSelfPermission(
11355                android.Manifest.permission.DELETE_CACHE_FILES, null);
11356        // Queue up an async operation since the package deletion may take a little while.
11357        final int userId = UserHandle.getCallingUserId();
11358        mHandler.post(new Runnable() {
11359            public void run() {
11360                mHandler.removeCallbacks(this);
11361                final boolean succeded;
11362                synchronized (mInstallLock) {
11363                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11364                }
11365                clearExternalStorageDataSync(packageName, userId, false);
11366                if(observer != null) {
11367                    try {
11368                        observer.onRemoveCompleted(packageName, succeded);
11369                    } catch (RemoteException e) {
11370                        Log.i(TAG, "Observer no longer exists.");
11371                    }
11372                } //end if observer
11373            } //end run
11374        });
11375    }
11376
11377    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11378        if (packageName == null) {
11379            Slog.w(TAG, "Attempt to delete null packageName.");
11380            return false;
11381        }
11382        PackageParser.Package p;
11383        synchronized (mPackages) {
11384            p = mPackages.get(packageName);
11385        }
11386        if (p == null) {
11387            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11388            return false;
11389        }
11390        final ApplicationInfo applicationInfo = p.applicationInfo;
11391        if (applicationInfo == null) {
11392            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11393            return false;
11394        }
11395        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11396        if (retCode < 0) {
11397            Slog.w(TAG, "Couldn't remove cache files for package: "
11398                       + packageName + " u" + userId);
11399            return false;
11400        }
11401        return true;
11402    }
11403
11404    @Override
11405    public void getPackageSizeInfo(final String packageName, int userHandle,
11406            final IPackageStatsObserver observer) {
11407        mContext.enforceCallingOrSelfPermission(
11408                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11409        if (packageName == null) {
11410            throw new IllegalArgumentException("Attempt to get size of null packageName");
11411        }
11412
11413        PackageStats stats = new PackageStats(packageName, userHandle);
11414
11415        /*
11416         * Queue up an async operation since the package measurement may take a
11417         * little while.
11418         */
11419        Message msg = mHandler.obtainMessage(INIT_COPY);
11420        msg.obj = new MeasureParams(stats, observer);
11421        mHandler.sendMessage(msg);
11422    }
11423
11424    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11425            PackageStats pStats) {
11426        if (packageName == null) {
11427            Slog.w(TAG, "Attempt to get size of null packageName.");
11428            return false;
11429        }
11430        PackageParser.Package p;
11431        boolean dataOnly = false;
11432        String libDirRoot = null;
11433        String asecPath = null;
11434        PackageSetting ps = null;
11435        synchronized (mPackages) {
11436            p = mPackages.get(packageName);
11437            ps = mSettings.mPackages.get(packageName);
11438            if(p == null) {
11439                dataOnly = true;
11440                if((ps == null) || (ps.pkg == null)) {
11441                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11442                    return false;
11443                }
11444                p = ps.pkg;
11445            }
11446            if (ps != null) {
11447                libDirRoot = ps.legacyNativeLibraryPathString;
11448            }
11449            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11450                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11451                if (secureContainerId != null) {
11452                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11453                }
11454            }
11455        }
11456        String publicSrcDir = null;
11457        if(!dataOnly) {
11458            final ApplicationInfo applicationInfo = p.applicationInfo;
11459            if (applicationInfo == null) {
11460                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11461                return false;
11462            }
11463            if (isForwardLocked(p)) {
11464                publicSrcDir = applicationInfo.getBaseResourcePath();
11465            }
11466        }
11467        // TODO: extend to measure size of split APKs
11468        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11469        // not just the first level.
11470        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11471        // just the primary.
11472        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11473        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11474                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11475        if (res < 0) {
11476            return false;
11477        }
11478
11479        // Fix-up for forward-locked applications in ASEC containers.
11480        if (!isExternal(p)) {
11481            pStats.codeSize += pStats.externalCodeSize;
11482            pStats.externalCodeSize = 0L;
11483        }
11484
11485        return true;
11486    }
11487
11488
11489    @Override
11490    public void addPackageToPreferred(String packageName) {
11491        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11492    }
11493
11494    @Override
11495    public void removePackageFromPreferred(String packageName) {
11496        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11497    }
11498
11499    @Override
11500    public List<PackageInfo> getPreferredPackages(int flags) {
11501        return new ArrayList<PackageInfo>();
11502    }
11503
11504    private int getUidTargetSdkVersionLockedLPr(int uid) {
11505        Object obj = mSettings.getUserIdLPr(uid);
11506        if (obj instanceof SharedUserSetting) {
11507            final SharedUserSetting sus = (SharedUserSetting) obj;
11508            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11509            final Iterator<PackageSetting> it = sus.packages.iterator();
11510            while (it.hasNext()) {
11511                final PackageSetting ps = it.next();
11512                if (ps.pkg != null) {
11513                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11514                    if (v < vers) vers = v;
11515                }
11516            }
11517            return vers;
11518        } else if (obj instanceof PackageSetting) {
11519            final PackageSetting ps = (PackageSetting) obj;
11520            if (ps.pkg != null) {
11521                return ps.pkg.applicationInfo.targetSdkVersion;
11522            }
11523        }
11524        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11525    }
11526
11527    @Override
11528    public void addPreferredActivity(IntentFilter filter, int match,
11529            ComponentName[] set, ComponentName activity, int userId) {
11530        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11531                "Adding preferred");
11532    }
11533
11534    private void addPreferredActivityInternal(IntentFilter filter, int match,
11535            ComponentName[] set, ComponentName activity, boolean always, int userId,
11536            String opname) {
11537        // writer
11538        int callingUid = Binder.getCallingUid();
11539        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11540        if (filter.countActions() == 0) {
11541            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11542            return;
11543        }
11544        synchronized (mPackages) {
11545            if (mContext.checkCallingOrSelfPermission(
11546                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11547                    != PackageManager.PERMISSION_GRANTED) {
11548                if (getUidTargetSdkVersionLockedLPr(callingUid)
11549                        < Build.VERSION_CODES.FROYO) {
11550                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11551                            + callingUid);
11552                    return;
11553                }
11554                mContext.enforceCallingOrSelfPermission(
11555                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11556            }
11557
11558            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11559            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11560                    + userId + ":");
11561            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11562            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11563            mSettings.writePackageRestrictionsLPr(userId);
11564        }
11565    }
11566
11567    @Override
11568    public void replacePreferredActivity(IntentFilter filter, int match,
11569            ComponentName[] set, ComponentName activity, int userId) {
11570        if (filter.countActions() != 1) {
11571            throw new IllegalArgumentException(
11572                    "replacePreferredActivity expects filter to have only 1 action.");
11573        }
11574        if (filter.countDataAuthorities() != 0
11575                || filter.countDataPaths() != 0
11576                || filter.countDataSchemes() > 1
11577                || filter.countDataTypes() != 0) {
11578            throw new IllegalArgumentException(
11579                    "replacePreferredActivity expects filter to have no data authorities, " +
11580                    "paths, or types; and at most one scheme.");
11581        }
11582
11583        final int callingUid = Binder.getCallingUid();
11584        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11585        synchronized (mPackages) {
11586            if (mContext.checkCallingOrSelfPermission(
11587                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11588                    != PackageManager.PERMISSION_GRANTED) {
11589                if (getUidTargetSdkVersionLockedLPr(callingUid)
11590                        < Build.VERSION_CODES.FROYO) {
11591                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11592                            + Binder.getCallingUid());
11593                    return;
11594                }
11595                mContext.enforceCallingOrSelfPermission(
11596                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11597            }
11598
11599            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11600            if (pir != null) {
11601                // Get all of the existing entries that exactly match this filter.
11602                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11603                if (existing != null && existing.size() == 1) {
11604                    PreferredActivity cur = existing.get(0);
11605                    if (DEBUG_PREFERRED) {
11606                        Slog.i(TAG, "Checking replace of preferred:");
11607                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11608                        if (!cur.mPref.mAlways) {
11609                            Slog.i(TAG, "  -- CUR; not mAlways!");
11610                        } else {
11611                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11612                            Slog.i(TAG, "  -- CUR: mSet="
11613                                    + Arrays.toString(cur.mPref.mSetComponents));
11614                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11615                            Slog.i(TAG, "  -- NEW: mMatch="
11616                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11617                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11618                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11619                        }
11620                    }
11621                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11622                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11623                            && cur.mPref.sameSet(set)) {
11624                        // Setting the preferred activity to what it happens to be already
11625                        if (DEBUG_PREFERRED) {
11626                            Slog.i(TAG, "Replacing with same preferred activity "
11627                                    + cur.mPref.mShortComponent + " for user "
11628                                    + userId + ":");
11629                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11630                        }
11631                        return;
11632                    }
11633                }
11634
11635                if (existing != null) {
11636                    if (DEBUG_PREFERRED) {
11637                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11638                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11639                    }
11640                    for (int i = 0; i < existing.size(); i++) {
11641                        PreferredActivity pa = existing.get(i);
11642                        if (DEBUG_PREFERRED) {
11643                            Slog.i(TAG, "Removing existing preferred activity "
11644                                    + pa.mPref.mComponent + ":");
11645                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11646                        }
11647                        pir.removeFilter(pa);
11648                    }
11649                }
11650            }
11651            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11652                    "Replacing preferred");
11653        }
11654    }
11655
11656    @Override
11657    public void clearPackagePreferredActivities(String packageName) {
11658        final int uid = Binder.getCallingUid();
11659        // writer
11660        synchronized (mPackages) {
11661            PackageParser.Package pkg = mPackages.get(packageName);
11662            if (pkg == null || pkg.applicationInfo.uid != uid) {
11663                if (mContext.checkCallingOrSelfPermission(
11664                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11665                        != PackageManager.PERMISSION_GRANTED) {
11666                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11667                            < Build.VERSION_CODES.FROYO) {
11668                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11669                                + Binder.getCallingUid());
11670                        return;
11671                    }
11672                    mContext.enforceCallingOrSelfPermission(
11673                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11674                }
11675            }
11676
11677            int user = UserHandle.getCallingUserId();
11678            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11679                mSettings.writePackageRestrictionsLPr(user);
11680                scheduleWriteSettingsLocked();
11681            }
11682        }
11683    }
11684
11685    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11686    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11687        ArrayList<PreferredActivity> removed = null;
11688        boolean changed = false;
11689        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11690            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11691            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11692            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11693                continue;
11694            }
11695            Iterator<PreferredActivity> it = pir.filterIterator();
11696            while (it.hasNext()) {
11697                PreferredActivity pa = it.next();
11698                // Mark entry for removal only if it matches the package name
11699                // and the entry is of type "always".
11700                if (packageName == null ||
11701                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11702                                && pa.mPref.mAlways)) {
11703                    if (removed == null) {
11704                        removed = new ArrayList<PreferredActivity>();
11705                    }
11706                    removed.add(pa);
11707                }
11708            }
11709            if (removed != null) {
11710                for (int j=0; j<removed.size(); j++) {
11711                    PreferredActivity pa = removed.get(j);
11712                    pir.removeFilter(pa);
11713                }
11714                changed = true;
11715            }
11716        }
11717        return changed;
11718    }
11719
11720    @Override
11721    public void resetPreferredActivities(int userId) {
11722        /* TODO: Actually use userId. Why is it being passed in? */
11723        mContext.enforceCallingOrSelfPermission(
11724                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11725        // writer
11726        synchronized (mPackages) {
11727            int user = UserHandle.getCallingUserId();
11728            clearPackagePreferredActivitiesLPw(null, user);
11729            mSettings.readDefaultPreferredAppsLPw(this, user);
11730            mSettings.writePackageRestrictionsLPr(user);
11731            scheduleWriteSettingsLocked();
11732        }
11733    }
11734
11735    @Override
11736    public int getPreferredActivities(List<IntentFilter> outFilters,
11737            List<ComponentName> outActivities, String packageName) {
11738
11739        int num = 0;
11740        final int userId = UserHandle.getCallingUserId();
11741        // reader
11742        synchronized (mPackages) {
11743            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11744            if (pir != null) {
11745                final Iterator<PreferredActivity> it = pir.filterIterator();
11746                while (it.hasNext()) {
11747                    final PreferredActivity pa = it.next();
11748                    if (packageName == null
11749                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11750                                    && pa.mPref.mAlways)) {
11751                        if (outFilters != null) {
11752                            outFilters.add(new IntentFilter(pa));
11753                        }
11754                        if (outActivities != null) {
11755                            outActivities.add(pa.mPref.mComponent);
11756                        }
11757                    }
11758                }
11759            }
11760        }
11761
11762        return num;
11763    }
11764
11765    @Override
11766    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11767            int userId) {
11768        int callingUid = Binder.getCallingUid();
11769        if (callingUid != Process.SYSTEM_UID) {
11770            throw new SecurityException(
11771                    "addPersistentPreferredActivity can only be run by the system");
11772        }
11773        if (filter.countActions() == 0) {
11774            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11775            return;
11776        }
11777        synchronized (mPackages) {
11778            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11779                    " :");
11780            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11781            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11782                    new PersistentPreferredActivity(filter, activity));
11783            mSettings.writePackageRestrictionsLPr(userId);
11784        }
11785    }
11786
11787    @Override
11788    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11789        int callingUid = Binder.getCallingUid();
11790        if (callingUid != Process.SYSTEM_UID) {
11791            throw new SecurityException(
11792                    "clearPackagePersistentPreferredActivities can only be run by the system");
11793        }
11794        ArrayList<PersistentPreferredActivity> removed = null;
11795        boolean changed = false;
11796        synchronized (mPackages) {
11797            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11798                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11799                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11800                        .valueAt(i);
11801                if (userId != thisUserId) {
11802                    continue;
11803                }
11804                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11805                while (it.hasNext()) {
11806                    PersistentPreferredActivity ppa = it.next();
11807                    // Mark entry for removal only if it matches the package name.
11808                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11809                        if (removed == null) {
11810                            removed = new ArrayList<PersistentPreferredActivity>();
11811                        }
11812                        removed.add(ppa);
11813                    }
11814                }
11815                if (removed != null) {
11816                    for (int j=0; j<removed.size(); j++) {
11817                        PersistentPreferredActivity ppa = removed.get(j);
11818                        ppir.removeFilter(ppa);
11819                    }
11820                    changed = true;
11821                }
11822            }
11823
11824            if (changed) {
11825                mSettings.writePackageRestrictionsLPr(userId);
11826            }
11827        }
11828    }
11829
11830    @Override
11831    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11832            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11833        mContext.enforceCallingOrSelfPermission(
11834                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11835        int callingUid = Binder.getCallingUid();
11836        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11837        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11838        if (intentFilter.countActions() == 0) {
11839            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11840            return;
11841        }
11842        synchronized (mPackages) {
11843            CrossProfileIntentFilter filter = new CrossProfileIntentFilter(intentFilter,
11844                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11845            mSettings.editCrossProfileIntentResolverLPw(sourceUserId).addFilter(filter);
11846            mSettings.writePackageRestrictionsLPr(sourceUserId);
11847        }
11848    }
11849
11850    @Override
11851    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11852            int ownerUserId) {
11853        mContext.enforceCallingOrSelfPermission(
11854                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11855        int callingUid = Binder.getCallingUid();
11856        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11857        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11858        int callingUserId = UserHandle.getUserId(callingUid);
11859        synchronized (mPackages) {
11860            CrossProfileIntentResolver resolver =
11861                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11862            HashSet<CrossProfileIntentFilter> set =
11863                    new HashSet<CrossProfileIntentFilter>(resolver.filterSet());
11864            for (CrossProfileIntentFilter filter : set) {
11865                if (filter.getOwnerPackage().equals(ownerPackage)
11866                        && filter.getOwnerUserId() == callingUserId) {
11867                    resolver.removeFilter(filter);
11868                }
11869            }
11870            mSettings.writePackageRestrictionsLPr(sourceUserId);
11871        }
11872    }
11873
11874    // Enforcing that callingUid is owning pkg on userId
11875    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11876        // The system owns everything.
11877        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11878            return;
11879        }
11880        int callingUserId = UserHandle.getUserId(callingUid);
11881        if (callingUserId != userId) {
11882            throw new SecurityException("calling uid " + callingUid
11883                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11884                    + callingUserId);
11885        }
11886        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11887        if (pi == null) {
11888            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11889                    + callingUserId);
11890        }
11891        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11892            throw new SecurityException("Calling uid " + callingUid
11893                    + " does not own package " + pkg);
11894        }
11895    }
11896
11897    @Override
11898    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11899        Intent intent = new Intent(Intent.ACTION_MAIN);
11900        intent.addCategory(Intent.CATEGORY_HOME);
11901
11902        final int callingUserId = UserHandle.getCallingUserId();
11903        List<ResolveInfo> list = queryIntentActivities(intent, null,
11904                PackageManager.GET_META_DATA, callingUserId);
11905        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11906                true, false, false, callingUserId);
11907
11908        allHomeCandidates.clear();
11909        if (list != null) {
11910            for (ResolveInfo ri : list) {
11911                allHomeCandidates.add(ri);
11912            }
11913        }
11914        return (preferred == null || preferred.activityInfo == null)
11915                ? null
11916                : new ComponentName(preferred.activityInfo.packageName,
11917                        preferred.activityInfo.name);
11918    }
11919
11920    @Override
11921    public void setApplicationEnabledSetting(String appPackageName,
11922            int newState, int flags, int userId, String callingPackage) {
11923        if (!sUserManager.exists(userId)) return;
11924        if (callingPackage == null) {
11925            callingPackage = Integer.toString(Binder.getCallingUid());
11926        }
11927        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11928    }
11929
11930    @Override
11931    public void setComponentEnabledSetting(ComponentName componentName,
11932            int newState, int flags, int userId) {
11933        if (!sUserManager.exists(userId)) return;
11934        setEnabledSetting(componentName.getPackageName(),
11935                componentName.getClassName(), newState, flags, userId, null);
11936    }
11937
11938    private void setEnabledSetting(final String packageName, String className, int newState,
11939            final int flags, int userId, String callingPackage) {
11940        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11941              || newState == COMPONENT_ENABLED_STATE_ENABLED
11942              || newState == COMPONENT_ENABLED_STATE_DISABLED
11943              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11944              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11945            throw new IllegalArgumentException("Invalid new component state: "
11946                    + newState);
11947        }
11948        PackageSetting pkgSetting;
11949        final int uid = Binder.getCallingUid();
11950        final int permission = mContext.checkCallingOrSelfPermission(
11951                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11952        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11953        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11954        boolean sendNow = false;
11955        boolean isApp = (className == null);
11956        String componentName = isApp ? packageName : className;
11957        int packageUid = -1;
11958        ArrayList<String> components;
11959
11960        // writer
11961        synchronized (mPackages) {
11962            pkgSetting = mSettings.mPackages.get(packageName);
11963            if (pkgSetting == null) {
11964                if (className == null) {
11965                    throw new IllegalArgumentException(
11966                            "Unknown package: " + packageName);
11967                }
11968                throw new IllegalArgumentException(
11969                        "Unknown component: " + packageName
11970                        + "/" + className);
11971            }
11972            // Allow root and verify that userId is not being specified by a different user
11973            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11974                throw new SecurityException(
11975                        "Permission Denial: attempt to change component state from pid="
11976                        + Binder.getCallingPid()
11977                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11978            }
11979            if (className == null) {
11980                // We're dealing with an application/package level state change
11981                if (pkgSetting.getEnabled(userId) == newState) {
11982                    // Nothing to do
11983                    return;
11984                }
11985                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11986                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11987                    // Don't care about who enables an app.
11988                    callingPackage = null;
11989                }
11990                pkgSetting.setEnabled(newState, userId, callingPackage);
11991                // pkgSetting.pkg.mSetEnabled = newState;
11992            } else {
11993                // We're dealing with a component level state change
11994                // First, verify that this is a valid class name.
11995                PackageParser.Package pkg = pkgSetting.pkg;
11996                if (pkg == null || !pkg.hasComponentClassName(className)) {
11997                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11998                        throw new IllegalArgumentException("Component class " + className
11999                                + " does not exist in " + packageName);
12000                    } else {
12001                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
12002                                + className + " does not exist in " + packageName);
12003                    }
12004                }
12005                switch (newState) {
12006                case COMPONENT_ENABLED_STATE_ENABLED:
12007                    if (!pkgSetting.enableComponentLPw(className, userId)) {
12008                        return;
12009                    }
12010                    break;
12011                case COMPONENT_ENABLED_STATE_DISABLED:
12012                    if (!pkgSetting.disableComponentLPw(className, userId)) {
12013                        return;
12014                    }
12015                    break;
12016                case COMPONENT_ENABLED_STATE_DEFAULT:
12017                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
12018                        return;
12019                    }
12020                    break;
12021                default:
12022                    Slog.e(TAG, "Invalid new component state: " + newState);
12023                    return;
12024                }
12025            }
12026            mSettings.writePackageRestrictionsLPr(userId);
12027            components = mPendingBroadcasts.get(userId, packageName);
12028            final boolean newPackage = components == null;
12029            if (newPackage) {
12030                components = new ArrayList<String>();
12031            }
12032            if (!components.contains(componentName)) {
12033                components.add(componentName);
12034            }
12035            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12036                sendNow = true;
12037                // Purge entry from pending broadcast list if another one exists already
12038                // since we are sending one right away.
12039                mPendingBroadcasts.remove(userId, packageName);
12040            } else {
12041                if (newPackage) {
12042                    mPendingBroadcasts.put(userId, packageName, components);
12043                }
12044                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12045                    // Schedule a message
12046                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12047                }
12048            }
12049        }
12050
12051        long callingId = Binder.clearCallingIdentity();
12052        try {
12053            if (sendNow) {
12054                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12055                sendPackageChangedBroadcast(packageName,
12056                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12057            }
12058        } finally {
12059            Binder.restoreCallingIdentity(callingId);
12060        }
12061    }
12062
12063    private void sendPackageChangedBroadcast(String packageName,
12064            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12065        if (DEBUG_INSTALL)
12066            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12067                    + componentNames);
12068        Bundle extras = new Bundle(4);
12069        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12070        String nameList[] = new String[componentNames.size()];
12071        componentNames.toArray(nameList);
12072        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12073        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12074        extras.putInt(Intent.EXTRA_UID, packageUid);
12075        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12076                new int[] {UserHandle.getUserId(packageUid)});
12077    }
12078
12079    @Override
12080    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12081        if (!sUserManager.exists(userId)) return;
12082        final int uid = Binder.getCallingUid();
12083        final int permission = mContext.checkCallingOrSelfPermission(
12084                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12085        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12086        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12087        // writer
12088        synchronized (mPackages) {
12089            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12090                    uid, userId)) {
12091                scheduleWritePackageRestrictionsLocked(userId);
12092            }
12093        }
12094    }
12095
12096    @Override
12097    public String getInstallerPackageName(String packageName) {
12098        // reader
12099        synchronized (mPackages) {
12100            return mSettings.getInstallerPackageNameLPr(packageName);
12101        }
12102    }
12103
12104    @Override
12105    public int getApplicationEnabledSetting(String packageName, int userId) {
12106        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12107        int uid = Binder.getCallingUid();
12108        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12109        // reader
12110        synchronized (mPackages) {
12111            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12112        }
12113    }
12114
12115    @Override
12116    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12117        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12118        int uid = Binder.getCallingUid();
12119        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12120        // reader
12121        synchronized (mPackages) {
12122            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12123        }
12124    }
12125
12126    @Override
12127    public void enterSafeMode() {
12128        enforceSystemOrRoot("Only the system can request entering safe mode");
12129
12130        if (!mSystemReady) {
12131            mSafeMode = true;
12132        }
12133    }
12134
12135    @Override
12136    public void systemReady() {
12137        mSystemReady = true;
12138
12139        // Read the compatibilty setting when the system is ready.
12140        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12141                mContext.getContentResolver(),
12142                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12143        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12144        if (DEBUG_SETTINGS) {
12145            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12146        }
12147
12148        synchronized (mPackages) {
12149            // Verify that all of the preferred activity components actually
12150            // exist.  It is possible for applications to be updated and at
12151            // that point remove a previously declared activity component that
12152            // had been set as a preferred activity.  We try to clean this up
12153            // the next time we encounter that preferred activity, but it is
12154            // possible for the user flow to never be able to return to that
12155            // situation so here we do a sanity check to make sure we haven't
12156            // left any junk around.
12157            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12158            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12159                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12160                removed.clear();
12161                for (PreferredActivity pa : pir.filterSet()) {
12162                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12163                        removed.add(pa);
12164                    }
12165                }
12166                if (removed.size() > 0) {
12167                    for (int r=0; r<removed.size(); r++) {
12168                        PreferredActivity pa = removed.get(r);
12169                        Slog.w(TAG, "Removing dangling preferred activity: "
12170                                + pa.mPref.mComponent);
12171                        pir.removeFilter(pa);
12172                    }
12173                    mSettings.writePackageRestrictionsLPr(
12174                            mSettings.mPreferredActivities.keyAt(i));
12175                }
12176            }
12177        }
12178        sUserManager.systemReady();
12179
12180        // Kick off any messages waiting for system ready
12181        if (mPostSystemReadyMessages != null) {
12182            for (Message msg : mPostSystemReadyMessages) {
12183                msg.sendToTarget();
12184            }
12185            mPostSystemReadyMessages = null;
12186        }
12187    }
12188
12189    @Override
12190    public boolean isSafeMode() {
12191        return mSafeMode;
12192    }
12193
12194    @Override
12195    public boolean hasSystemUidErrors() {
12196        return mHasSystemUidErrors;
12197    }
12198
12199    static String arrayToString(int[] array) {
12200        StringBuffer buf = new StringBuffer(128);
12201        buf.append('[');
12202        if (array != null) {
12203            for (int i=0; i<array.length; i++) {
12204                if (i > 0) buf.append(", ");
12205                buf.append(array[i]);
12206            }
12207        }
12208        buf.append(']');
12209        return buf.toString();
12210    }
12211
12212    static class DumpState {
12213        public static final int DUMP_LIBS = 1 << 0;
12214        public static final int DUMP_FEATURES = 1 << 1;
12215        public static final int DUMP_RESOLVERS = 1 << 2;
12216        public static final int DUMP_PERMISSIONS = 1 << 3;
12217        public static final int DUMP_PACKAGES = 1 << 4;
12218        public static final int DUMP_SHARED_USERS = 1 << 5;
12219        public static final int DUMP_MESSAGES = 1 << 6;
12220        public static final int DUMP_PROVIDERS = 1 << 7;
12221        public static final int DUMP_VERIFIERS = 1 << 8;
12222        public static final int DUMP_PREFERRED = 1 << 9;
12223        public static final int DUMP_PREFERRED_XML = 1 << 10;
12224        public static final int DUMP_KEYSETS = 1 << 11;
12225        public static final int DUMP_VERSION = 1 << 12;
12226        public static final int DUMP_INSTALLS = 1 << 13;
12227
12228        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12229
12230        private int mTypes;
12231
12232        private int mOptions;
12233
12234        private boolean mTitlePrinted;
12235
12236        private SharedUserSetting mSharedUser;
12237
12238        public boolean isDumping(int type) {
12239            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12240                return true;
12241            }
12242
12243            return (mTypes & type) != 0;
12244        }
12245
12246        public void setDump(int type) {
12247            mTypes |= type;
12248        }
12249
12250        public boolean isOptionEnabled(int option) {
12251            return (mOptions & option) != 0;
12252        }
12253
12254        public void setOptionEnabled(int option) {
12255            mOptions |= option;
12256        }
12257
12258        public boolean onTitlePrinted() {
12259            final boolean printed = mTitlePrinted;
12260            mTitlePrinted = true;
12261            return printed;
12262        }
12263
12264        public boolean getTitlePrinted() {
12265            return mTitlePrinted;
12266        }
12267
12268        public void setTitlePrinted(boolean enabled) {
12269            mTitlePrinted = enabled;
12270        }
12271
12272        public SharedUserSetting getSharedUser() {
12273            return mSharedUser;
12274        }
12275
12276        public void setSharedUser(SharedUserSetting user) {
12277            mSharedUser = user;
12278        }
12279    }
12280
12281    @Override
12282    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12283        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12284                != PackageManager.PERMISSION_GRANTED) {
12285            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12286                    + Binder.getCallingPid()
12287                    + ", uid=" + Binder.getCallingUid()
12288                    + " without permission "
12289                    + android.Manifest.permission.DUMP);
12290            return;
12291        }
12292
12293        DumpState dumpState = new DumpState();
12294        boolean fullPreferred = false;
12295        boolean checkin = false;
12296
12297        String packageName = null;
12298
12299        int opti = 0;
12300        while (opti < args.length) {
12301            String opt = args[opti];
12302            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12303                break;
12304            }
12305            opti++;
12306
12307            if ("-a".equals(opt)) {
12308                // Right now we only know how to print all.
12309            } else if ("-h".equals(opt)) {
12310                pw.println("Package manager dump options:");
12311                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12312                pw.println("    --checkin: dump for a checkin");
12313                pw.println("    -f: print details of intent filters");
12314                pw.println("    -h: print this help");
12315                pw.println("  cmd may be one of:");
12316                pw.println("    l[ibraries]: list known shared libraries");
12317                pw.println("    f[ibraries]: list device features");
12318                pw.println("    k[eysets]: print known keysets");
12319                pw.println("    r[esolvers]: dump intent resolvers");
12320                pw.println("    perm[issions]: dump permissions");
12321                pw.println("    pref[erred]: print preferred package settings");
12322                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12323                pw.println("    prov[iders]: dump content providers");
12324                pw.println("    p[ackages]: dump installed packages");
12325                pw.println("    s[hared-users]: dump shared user IDs");
12326                pw.println("    m[essages]: print collected runtime messages");
12327                pw.println("    v[erifiers]: print package verifier info");
12328                pw.println("    version: print database version info");
12329                pw.println("    write: write current settings now");
12330                pw.println("    <package.name>: info about given package");
12331                pw.println("    installs: details about install sessions");
12332                return;
12333            } else if ("--checkin".equals(opt)) {
12334                checkin = true;
12335            } else if ("-f".equals(opt)) {
12336                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12337            } else {
12338                pw.println("Unknown argument: " + opt + "; use -h for help");
12339            }
12340        }
12341
12342        // Is the caller requesting to dump a particular piece of data?
12343        if (opti < args.length) {
12344            String cmd = args[opti];
12345            opti++;
12346            // Is this a package name?
12347            if ("android".equals(cmd) || cmd.contains(".")) {
12348                packageName = cmd;
12349                // When dumping a single package, we always dump all of its
12350                // filter information since the amount of data will be reasonable.
12351                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12352            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12353                dumpState.setDump(DumpState.DUMP_LIBS);
12354            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12355                dumpState.setDump(DumpState.DUMP_FEATURES);
12356            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12357                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12358            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12359                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12360            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12361                dumpState.setDump(DumpState.DUMP_PREFERRED);
12362            } else if ("preferred-xml".equals(cmd)) {
12363                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12364                if (opti < args.length && "--full".equals(args[opti])) {
12365                    fullPreferred = true;
12366                    opti++;
12367                }
12368            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12369                dumpState.setDump(DumpState.DUMP_PACKAGES);
12370            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12371                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12372            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12373                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12374            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12375                dumpState.setDump(DumpState.DUMP_MESSAGES);
12376            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12377                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12378            } else if ("version".equals(cmd)) {
12379                dumpState.setDump(DumpState.DUMP_VERSION);
12380            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12381                dumpState.setDump(DumpState.DUMP_KEYSETS);
12382            } else if ("installs".equals(cmd)) {
12383                dumpState.setDump(DumpState.DUMP_INSTALLS);
12384            } else if ("write".equals(cmd)) {
12385                synchronized (mPackages) {
12386                    mSettings.writeLPr();
12387                    pw.println("Settings written.");
12388                    return;
12389                }
12390            }
12391        }
12392
12393        if (checkin) {
12394            pw.println("vers,1");
12395        }
12396
12397        // reader
12398        synchronized (mPackages) {
12399            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12400                if (!checkin) {
12401                    if (dumpState.onTitlePrinted())
12402                        pw.println();
12403                    pw.println("Database versions:");
12404                    pw.print("  SDK Version:");
12405                    pw.print(" internal=");
12406                    pw.print(mSettings.mInternalSdkPlatform);
12407                    pw.print(" external=");
12408                    pw.println(mSettings.mExternalSdkPlatform);
12409                    pw.print("  DB Version:");
12410                    pw.print(" internal=");
12411                    pw.print(mSettings.mInternalDatabaseVersion);
12412                    pw.print(" external=");
12413                    pw.println(mSettings.mExternalDatabaseVersion);
12414                }
12415            }
12416
12417            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12418                if (!checkin) {
12419                    if (dumpState.onTitlePrinted())
12420                        pw.println();
12421                    pw.println("Verifiers:");
12422                    pw.print("  Required: ");
12423                    pw.print(mRequiredVerifierPackage);
12424                    pw.print(" (uid=");
12425                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12426                    pw.println(")");
12427                } else if (mRequiredVerifierPackage != null) {
12428                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12429                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12430                }
12431            }
12432
12433            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12434                boolean printedHeader = false;
12435                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12436                while (it.hasNext()) {
12437                    String name = it.next();
12438                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12439                    if (!checkin) {
12440                        if (!printedHeader) {
12441                            if (dumpState.onTitlePrinted())
12442                                pw.println();
12443                            pw.println("Libraries:");
12444                            printedHeader = true;
12445                        }
12446                        pw.print("  ");
12447                    } else {
12448                        pw.print("lib,");
12449                    }
12450                    pw.print(name);
12451                    if (!checkin) {
12452                        pw.print(" -> ");
12453                    }
12454                    if (ent.path != null) {
12455                        if (!checkin) {
12456                            pw.print("(jar) ");
12457                            pw.print(ent.path);
12458                        } else {
12459                            pw.print(",jar,");
12460                            pw.print(ent.path);
12461                        }
12462                    } else {
12463                        if (!checkin) {
12464                            pw.print("(apk) ");
12465                            pw.print(ent.apk);
12466                        } else {
12467                            pw.print(",apk,");
12468                            pw.print(ent.apk);
12469                        }
12470                    }
12471                    pw.println();
12472                }
12473            }
12474
12475            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12476                if (dumpState.onTitlePrinted())
12477                    pw.println();
12478                if (!checkin) {
12479                    pw.println("Features:");
12480                }
12481                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12482                while (it.hasNext()) {
12483                    String name = it.next();
12484                    if (!checkin) {
12485                        pw.print("  ");
12486                    } else {
12487                        pw.print("feat,");
12488                    }
12489                    pw.println(name);
12490                }
12491            }
12492
12493            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12494                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12495                        : "Activity Resolver Table:", "  ", packageName,
12496                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12497                    dumpState.setTitlePrinted(true);
12498                }
12499                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12500                        : "Receiver Resolver Table:", "  ", packageName,
12501                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12502                    dumpState.setTitlePrinted(true);
12503                }
12504                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12505                        : "Service Resolver Table:", "  ", packageName,
12506                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12507                    dumpState.setTitlePrinted(true);
12508                }
12509                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12510                        : "Provider Resolver Table:", "  ", packageName,
12511                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12512                    dumpState.setTitlePrinted(true);
12513                }
12514            }
12515
12516            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12517                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12518                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12519                    int user = mSettings.mPreferredActivities.keyAt(i);
12520                    if (pir.dump(pw,
12521                            dumpState.getTitlePrinted()
12522                                ? "\nPreferred Activities User " + user + ":"
12523                                : "Preferred Activities User " + user + ":", "  ",
12524                            packageName, true)) {
12525                        dumpState.setTitlePrinted(true);
12526                    }
12527                }
12528            }
12529
12530            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12531                pw.flush();
12532                FileOutputStream fout = new FileOutputStream(fd);
12533                BufferedOutputStream str = new BufferedOutputStream(fout);
12534                XmlSerializer serializer = new FastXmlSerializer();
12535                try {
12536                    serializer.setOutput(str, "utf-8");
12537                    serializer.startDocument(null, true);
12538                    serializer.setFeature(
12539                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12540                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12541                    serializer.endDocument();
12542                    serializer.flush();
12543                } catch (IllegalArgumentException e) {
12544                    pw.println("Failed writing: " + e);
12545                } catch (IllegalStateException e) {
12546                    pw.println("Failed writing: " + e);
12547                } catch (IOException e) {
12548                    pw.println("Failed writing: " + e);
12549                }
12550            }
12551
12552            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12553                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12554                if (packageName == null) {
12555                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12556                        if (iperm == 0) {
12557                            if (dumpState.onTitlePrinted())
12558                                pw.println();
12559                            pw.println("AppOp Permissions:");
12560                        }
12561                        pw.print("  AppOp Permission ");
12562                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12563                        pw.println(":");
12564                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12565                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12566                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12567                        }
12568                    }
12569                }
12570            }
12571
12572            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12573                boolean printedSomething = false;
12574                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12575                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12576                        continue;
12577                    }
12578                    if (!printedSomething) {
12579                        if (dumpState.onTitlePrinted())
12580                            pw.println();
12581                        pw.println("Registered ContentProviders:");
12582                        printedSomething = true;
12583                    }
12584                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12585                    pw.print("    "); pw.println(p.toString());
12586                }
12587                printedSomething = false;
12588                for (Map.Entry<String, PackageParser.Provider> entry :
12589                        mProvidersByAuthority.entrySet()) {
12590                    PackageParser.Provider p = entry.getValue();
12591                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12592                        continue;
12593                    }
12594                    if (!printedSomething) {
12595                        if (dumpState.onTitlePrinted())
12596                            pw.println();
12597                        pw.println("ContentProvider Authorities:");
12598                        printedSomething = true;
12599                    }
12600                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12601                    pw.print("    "); pw.println(p.toString());
12602                    if (p.info != null && p.info.applicationInfo != null) {
12603                        final String appInfo = p.info.applicationInfo.toString();
12604                        pw.print("      applicationInfo="); pw.println(appInfo);
12605                    }
12606                }
12607            }
12608
12609            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12610                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12611            }
12612
12613            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12614                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12615            }
12616
12617            if (!checkin && dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12618                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState);
12619            }
12620
12621            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12622                // XXX should handle packageName != null by dumping only install data that
12623                // the given package is involved with.
12624                if (dumpState.onTitlePrinted()) pw.println();
12625                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12626            }
12627
12628            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12629                if (dumpState.onTitlePrinted()) pw.println();
12630                mSettings.dumpReadMessagesLPr(pw, dumpState);
12631
12632                pw.println();
12633                pw.println("Package warning messages:");
12634                final File fname = getSettingsProblemFile();
12635                FileInputStream in = null;
12636                try {
12637                    in = new FileInputStream(fname);
12638                    final int avail = in.available();
12639                    final byte[] data = new byte[avail];
12640                    in.read(data);
12641                    pw.print(new String(data));
12642                } catch (FileNotFoundException e) {
12643                } catch (IOException e) {
12644                } finally {
12645                    if (in != null) {
12646                        try {
12647                            in.close();
12648                        } catch (IOException e) {
12649                        }
12650                    }
12651                }
12652            }
12653
12654            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12655                BufferedReader in = null;
12656                String line = null;
12657                try {
12658                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12659                    while ((line = in.readLine()) != null) {
12660                        pw.print("msg,");
12661                        pw.println(line);
12662                    }
12663                } catch (IOException ignored) {
12664                } finally {
12665                    IoUtils.closeQuietly(in);
12666                }
12667            }
12668        }
12669    }
12670
12671    // ------- apps on sdcard specific code -------
12672    static final boolean DEBUG_SD_INSTALL = false;
12673
12674    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12675
12676    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12677
12678    private boolean mMediaMounted = false;
12679
12680    static String getEncryptKey() {
12681        try {
12682            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12683                    SD_ENCRYPTION_KEYSTORE_NAME);
12684            if (sdEncKey == null) {
12685                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12686                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12687                if (sdEncKey == null) {
12688                    Slog.e(TAG, "Failed to create encryption keys");
12689                    return null;
12690                }
12691            }
12692            return sdEncKey;
12693        } catch (NoSuchAlgorithmException nsae) {
12694            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12695            return null;
12696        } catch (IOException ioe) {
12697            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12698            return null;
12699        }
12700    }
12701
12702    /*
12703     * Update media status on PackageManager.
12704     */
12705    @Override
12706    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12707        int callingUid = Binder.getCallingUid();
12708        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12709            throw new SecurityException("Media status can only be updated by the system");
12710        }
12711        // reader; this apparently protects mMediaMounted, but should probably
12712        // be a different lock in that case.
12713        synchronized (mPackages) {
12714            Log.i(TAG, "Updating external media status from "
12715                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12716                    + (mediaStatus ? "mounted" : "unmounted"));
12717            if (DEBUG_SD_INSTALL)
12718                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12719                        + ", mMediaMounted=" + mMediaMounted);
12720            if (mediaStatus == mMediaMounted) {
12721                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12722                        : 0, -1);
12723                mHandler.sendMessage(msg);
12724                return;
12725            }
12726            mMediaMounted = mediaStatus;
12727        }
12728        // Queue up an async operation since the package installation may take a
12729        // little while.
12730        mHandler.post(new Runnable() {
12731            public void run() {
12732                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12733            }
12734        });
12735    }
12736
12737    /**
12738     * Called by MountService when the initial ASECs to scan are available.
12739     * Should block until all the ASEC containers are finished being scanned.
12740     */
12741    public void scanAvailableAsecs() {
12742        updateExternalMediaStatusInner(true, false, false);
12743        if (mShouldRestoreconData) {
12744            SELinuxMMAC.setRestoreconDone();
12745            mShouldRestoreconData = false;
12746        }
12747    }
12748
12749    /*
12750     * Collect information of applications on external media, map them against
12751     * existing containers and update information based on current mount status.
12752     * Please note that we always have to report status if reportStatus has been
12753     * set to true especially when unloading packages.
12754     */
12755    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12756            boolean externalStorage) {
12757        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12758        int[] uidArr = EmptyArray.INT;
12759
12760        final String[] list = PackageHelper.getSecureContainerList();
12761        if (ArrayUtils.isEmpty(list)) {
12762            Log.i(TAG, "No secure containers found");
12763        } else {
12764            // Process list of secure containers and categorize them
12765            // as active or stale based on their package internal state.
12766
12767            // reader
12768            synchronized (mPackages) {
12769                for (String cid : list) {
12770                    // Leave stages untouched for now; installer service owns them
12771                    if (PackageInstallerService.isStageName(cid)) continue;
12772
12773                    if (DEBUG_SD_INSTALL)
12774                        Log.i(TAG, "Processing container " + cid);
12775                    String pkgName = getAsecPackageName(cid);
12776                    if (pkgName == null) {
12777                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12778                        continue;
12779                    }
12780                    if (DEBUG_SD_INSTALL)
12781                        Log.i(TAG, "Looking for pkg : " + pkgName);
12782
12783                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12784                    if (ps == null) {
12785                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12786                        continue;
12787                    }
12788
12789                    /*
12790                     * Skip packages that are not external if we're unmounting
12791                     * external storage.
12792                     */
12793                    if (externalStorage && !isMounted && !isExternal(ps)) {
12794                        continue;
12795                    }
12796
12797                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12798                            getAppDexInstructionSets(ps), isForwardLocked(ps));
12799                    // The package status is changed only if the code path
12800                    // matches between settings and the container id.
12801                    if (ps.codePathString != null
12802                            && ps.codePathString.startsWith(args.getCodePath())) {
12803                        if (DEBUG_SD_INSTALL) {
12804                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12805                                    + " at code path: " + ps.codePathString);
12806                        }
12807
12808                        // We do have a valid package installed on sdcard
12809                        processCids.put(args, ps.codePathString);
12810                        final int uid = ps.appId;
12811                        if (uid != -1) {
12812                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12813                        }
12814                    } else {
12815                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12816                                + ps.codePathString);
12817                    }
12818                }
12819            }
12820
12821            Arrays.sort(uidArr);
12822        }
12823
12824        // Process packages with valid entries.
12825        if (isMounted) {
12826            if (DEBUG_SD_INSTALL)
12827                Log.i(TAG, "Loading packages");
12828            loadMediaPackages(processCids, uidArr);
12829            startCleaningPackages();
12830            mInstallerService.onSecureContainersAvailable();
12831        } else {
12832            if (DEBUG_SD_INSTALL)
12833                Log.i(TAG, "Unloading packages");
12834            unloadMediaPackages(processCids, uidArr, reportStatus);
12835        }
12836    }
12837
12838    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12839            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12840        int size = pkgList.size();
12841        if (size > 0) {
12842            // Send broadcasts here
12843            Bundle extras = new Bundle();
12844            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12845                    .toArray(new String[size]));
12846            if (uidArr != null) {
12847                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12848            }
12849            if (replacing) {
12850                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12851            }
12852            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12853                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12854            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12855        }
12856    }
12857
12858   /*
12859     * Look at potentially valid container ids from processCids If package
12860     * information doesn't match the one on record or package scanning fails,
12861     * the cid is added to list of removeCids. We currently don't delete stale
12862     * containers.
12863     */
12864    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12865        ArrayList<String> pkgList = new ArrayList<String>();
12866        Set<AsecInstallArgs> keys = processCids.keySet();
12867
12868        for (AsecInstallArgs args : keys) {
12869            String codePath = processCids.get(args);
12870            if (DEBUG_SD_INSTALL)
12871                Log.i(TAG, "Loading container : " + args.cid);
12872            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12873            try {
12874                // Make sure there are no container errors first.
12875                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12876                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12877                            + " when installing from sdcard");
12878                    continue;
12879                }
12880                // Check code path here.
12881                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12882                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12883                            + " does not match one in settings " + codePath);
12884                    continue;
12885                }
12886                // Parse package
12887                int parseFlags = mDefParseFlags;
12888                if (args.isExternal()) {
12889                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12890                }
12891                if (args.isFwdLocked()) {
12892                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12893                }
12894
12895                synchronized (mInstallLock) {
12896                    PackageParser.Package pkg = null;
12897                    try {
12898                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12899                    } catch (PackageManagerException e) {
12900                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12901                    }
12902                    // Scan the package
12903                    if (pkg != null) {
12904                        /*
12905                         * TODO why is the lock being held? doPostInstall is
12906                         * called in other places without the lock. This needs
12907                         * to be straightened out.
12908                         */
12909                        // writer
12910                        synchronized (mPackages) {
12911                            retCode = PackageManager.INSTALL_SUCCEEDED;
12912                            pkgList.add(pkg.packageName);
12913                            // Post process args
12914                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12915                                    pkg.applicationInfo.uid);
12916                        }
12917                    } else {
12918                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12919                    }
12920                }
12921
12922            } finally {
12923                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12924                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12925                }
12926            }
12927        }
12928        // writer
12929        synchronized (mPackages) {
12930            // If the platform SDK has changed since the last time we booted,
12931            // we need to re-grant app permission to catch any new ones that
12932            // appear. This is really a hack, and means that apps can in some
12933            // cases get permissions that the user didn't initially explicitly
12934            // allow... it would be nice to have some better way to handle
12935            // this situation.
12936            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12937            if (regrantPermissions)
12938                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12939                        + mSdkVersion + "; regranting permissions for external storage");
12940            mSettings.mExternalSdkPlatform = mSdkVersion;
12941
12942            // Make sure group IDs have been assigned, and any permission
12943            // changes in other apps are accounted for
12944            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12945                    | (regrantPermissions
12946                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12947                            : 0));
12948
12949            mSettings.updateExternalDatabaseVersion();
12950
12951            // can downgrade to reader
12952            // Persist settings
12953            mSettings.writeLPr();
12954        }
12955        // Send a broadcast to let everyone know we are done processing
12956        if (pkgList.size() > 0) {
12957            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12958        }
12959    }
12960
12961   /*
12962     * Utility method to unload a list of specified containers
12963     */
12964    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12965        // Just unmount all valid containers.
12966        for (AsecInstallArgs arg : cidArgs) {
12967            synchronized (mInstallLock) {
12968                arg.doPostDeleteLI(false);
12969           }
12970       }
12971   }
12972
12973    /*
12974     * Unload packages mounted on external media. This involves deleting package
12975     * data from internal structures, sending broadcasts about diabled packages,
12976     * gc'ing to free up references, unmounting all secure containers
12977     * corresponding to packages on external media, and posting a
12978     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12979     * that we always have to post this message if status has been requested no
12980     * matter what.
12981     */
12982    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12983            final boolean reportStatus) {
12984        if (DEBUG_SD_INSTALL)
12985            Log.i(TAG, "unloading media packages");
12986        ArrayList<String> pkgList = new ArrayList<String>();
12987        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12988        final Set<AsecInstallArgs> keys = processCids.keySet();
12989        for (AsecInstallArgs args : keys) {
12990            String pkgName = args.getPackageName();
12991            if (DEBUG_SD_INSTALL)
12992                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12993            // Delete package internally
12994            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12995            synchronized (mInstallLock) {
12996                boolean res = deletePackageLI(pkgName, null, false, null, null,
12997                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12998                if (res) {
12999                    pkgList.add(pkgName);
13000                } else {
13001                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
13002                    failedList.add(args);
13003                }
13004            }
13005        }
13006
13007        // reader
13008        synchronized (mPackages) {
13009            // We didn't update the settings after removing each package;
13010            // write them now for all packages.
13011            mSettings.writeLPr();
13012        }
13013
13014        // We have to absolutely send UPDATED_MEDIA_STATUS only
13015        // after confirming that all the receivers processed the ordered
13016        // broadcast when packages get disabled, force a gc to clean things up.
13017        // and unload all the containers.
13018        if (pkgList.size() > 0) {
13019            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13020                    new IIntentReceiver.Stub() {
13021                public void performReceive(Intent intent, int resultCode, String data,
13022                        Bundle extras, boolean ordered, boolean sticky,
13023                        int sendingUser) throws RemoteException {
13024                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13025                            reportStatus ? 1 : 0, 1, keys);
13026                    mHandler.sendMessage(msg);
13027                }
13028            });
13029        } else {
13030            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13031                    keys);
13032            mHandler.sendMessage(msg);
13033        }
13034    }
13035
13036    /** Binder call */
13037    @Override
13038    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13039            final int flags) {
13040        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13041        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13042        int returnCode = PackageManager.MOVE_SUCCEEDED;
13043        int currInstallFlags = 0;
13044        int newInstallFlags = 0;
13045
13046        File codeFile = null;
13047        String installerPackageName = null;
13048        String packageAbiOverride = null;
13049
13050        // reader
13051        synchronized (mPackages) {
13052            final PackageParser.Package pkg = mPackages.get(packageName);
13053            final PackageSetting ps = mSettings.mPackages.get(packageName);
13054            if (pkg == null || ps == null) {
13055                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13056            } else {
13057                // Disable moving fwd locked apps and system packages
13058                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13059                    Slog.w(TAG, "Cannot move system application");
13060                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13061                } else if (pkg.mOperationPending) {
13062                    Slog.w(TAG, "Attempt to move package which has pending operations");
13063                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13064                } else {
13065                    // Find install location first
13066                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13067                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13068                        Slog.w(TAG, "Ambigous flags specified for move location.");
13069                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13070                    } else {
13071                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13072                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13073                        currInstallFlags = isExternal(pkg)
13074                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13075
13076                        if (newInstallFlags == currInstallFlags) {
13077                            Slog.w(TAG, "No move required. Trying to move to same location");
13078                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13079                        } else {
13080                            if (isForwardLocked(pkg)) {
13081                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13082                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13083                            }
13084                        }
13085                    }
13086                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13087                        pkg.mOperationPending = true;
13088                    }
13089                }
13090
13091                codeFile = new File(pkg.codePath);
13092                installerPackageName = ps.installerPackageName;
13093                packageAbiOverride = ps.cpuAbiOverrideString;
13094            }
13095        }
13096
13097        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13098            try {
13099                observer.packageMoved(packageName, returnCode);
13100            } catch (RemoteException ignored) {
13101            }
13102            return;
13103        }
13104
13105        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13106            @Override
13107            public void onUserActionRequired(Intent intent) throws RemoteException {
13108                throw new IllegalStateException();
13109            }
13110
13111            @Override
13112            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13113                    Bundle extras) throws RemoteException {
13114                Slog.d(TAG, "Install result for move: "
13115                        + PackageManager.installStatusToString(returnCode, msg));
13116
13117                // We usually have a new package now after the install, but if
13118                // we failed we need to clear the pending flag on the original
13119                // package object.
13120                synchronized (mPackages) {
13121                    final PackageParser.Package pkg = mPackages.get(packageName);
13122                    if (pkg != null) {
13123                        pkg.mOperationPending = false;
13124                    }
13125                }
13126
13127                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13128                switch (status) {
13129                    case PackageInstaller.STATUS_SUCCESS:
13130                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13131                        break;
13132                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13133                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13134                        break;
13135                    default:
13136                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13137                        break;
13138                }
13139            }
13140        };
13141
13142        // Treat a move like reinstalling an existing app, which ensures that we
13143        // process everythign uniformly, like unpacking native libraries.
13144        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13145
13146        final Message msg = mHandler.obtainMessage(INIT_COPY);
13147        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13148        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13149                installerPackageName, null, user, packageAbiOverride);
13150        mHandler.sendMessage(msg);
13151    }
13152
13153    @Override
13154    public boolean setInstallLocation(int loc) {
13155        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13156                null);
13157        if (getInstallLocation() == loc) {
13158            return true;
13159        }
13160        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13161                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13162            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13163                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13164            return true;
13165        }
13166        return false;
13167   }
13168
13169    @Override
13170    public int getInstallLocation() {
13171        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13172                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13173                PackageHelper.APP_INSTALL_AUTO);
13174    }
13175
13176    /** Called by UserManagerService */
13177    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13178        mDirtyUsers.remove(userHandle);
13179        mSettings.removeUserLPw(userHandle);
13180        mPendingBroadcasts.remove(userHandle);
13181        if (mInstaller != null) {
13182            // Technically, we shouldn't be doing this with the package lock
13183            // held.  However, this is very rare, and there is already so much
13184            // other disk I/O going on, that we'll let it slide for now.
13185            mInstaller.removeUserDataDirs(userHandle);
13186        }
13187        mUserNeedsBadging.delete(userHandle);
13188        removeUnusedPackagesLILPw(userManager, userHandle);
13189    }
13190
13191    /**
13192     * We're removing userHandle and would like to remove any downloaded packages
13193     * that are no longer in use by any other user.
13194     * @param userHandle the user being removed
13195     */
13196    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13197        final boolean DEBUG_CLEAN_APKS = false;
13198        int [] users = userManager.getUserIdsLPr();
13199        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13200        while (psit.hasNext()) {
13201            PackageSetting ps = psit.next();
13202            if (ps.pkg == null) {
13203                continue;
13204            }
13205            final String packageName = ps.pkg.packageName;
13206            // Skip over if system app
13207            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13208                continue;
13209            }
13210            if (DEBUG_CLEAN_APKS) {
13211                Slog.i(TAG, "Checking package " + packageName);
13212            }
13213            boolean keep = false;
13214            for (int i = 0; i < users.length; i++) {
13215                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13216                    keep = true;
13217                    if (DEBUG_CLEAN_APKS) {
13218                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13219                                + users[i]);
13220                    }
13221                    break;
13222                }
13223            }
13224            if (!keep) {
13225                if (DEBUG_CLEAN_APKS) {
13226                    Slog.i(TAG, "  Removing package " + packageName);
13227                }
13228                mHandler.post(new Runnable() {
13229                    public void run() {
13230                        deletePackageX(packageName, userHandle, 0);
13231                    } //end run
13232                });
13233            }
13234        }
13235    }
13236
13237    /** Called by UserManagerService */
13238    void createNewUserLILPw(int userHandle, File path) {
13239        if (mInstaller != null) {
13240            mInstaller.createUserConfig(userHandle);
13241            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13242        }
13243    }
13244
13245    @Override
13246    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13247        mContext.enforceCallingOrSelfPermission(
13248                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13249                "Only package verification agents can read the verifier device identity");
13250
13251        synchronized (mPackages) {
13252            return mSettings.getVerifierDeviceIdentityLPw();
13253        }
13254    }
13255
13256    @Override
13257    public void setPermissionEnforced(String permission, boolean enforced) {
13258        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13259        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13260            synchronized (mPackages) {
13261                if (mSettings.mReadExternalStorageEnforced == null
13262                        || mSettings.mReadExternalStorageEnforced != enforced) {
13263                    mSettings.mReadExternalStorageEnforced = enforced;
13264                    mSettings.writeLPr();
13265                }
13266            }
13267            // kill any non-foreground processes so we restart them and
13268            // grant/revoke the GID.
13269            final IActivityManager am = ActivityManagerNative.getDefault();
13270            if (am != null) {
13271                final long token = Binder.clearCallingIdentity();
13272                try {
13273                    am.killProcessesBelowForeground("setPermissionEnforcement");
13274                } catch (RemoteException e) {
13275                } finally {
13276                    Binder.restoreCallingIdentity(token);
13277                }
13278            }
13279        } else {
13280            throw new IllegalArgumentException("No selective enforcement for " + permission);
13281        }
13282    }
13283
13284    @Override
13285    @Deprecated
13286    public boolean isPermissionEnforced(String permission) {
13287        return true;
13288    }
13289
13290    @Override
13291    public boolean isStorageLow() {
13292        final long token = Binder.clearCallingIdentity();
13293        try {
13294            final DeviceStorageMonitorInternal
13295                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13296            if (dsm != null) {
13297                return dsm.isMemoryLow();
13298            } else {
13299                return false;
13300            }
13301        } finally {
13302            Binder.restoreCallingIdentity(token);
13303        }
13304    }
13305
13306    @Override
13307    public IPackageInstaller getPackageInstaller() {
13308        return mInstallerService;
13309    }
13310
13311    private boolean userNeedsBadging(int userId) {
13312        int index = mUserNeedsBadging.indexOfKey(userId);
13313        if (index < 0) {
13314            final UserInfo userInfo;
13315            final long token = Binder.clearCallingIdentity();
13316            try {
13317                userInfo = sUserManager.getUserInfo(userId);
13318            } finally {
13319                Binder.restoreCallingIdentity(token);
13320            }
13321            final boolean b;
13322            if (userInfo != null && userInfo.isManagedProfile()) {
13323                b = true;
13324            } else {
13325                b = false;
13326            }
13327            mUserNeedsBadging.put(userId, b);
13328            return b;
13329        }
13330        return mUserNeedsBadging.valueAt(index);
13331    }
13332
13333    @Override
13334    public KeySet getKeySetByAlias(String packageName, String alias) {
13335        if (packageName == null || alias == null) {
13336            return null;
13337        }
13338        synchronized(mPackages) {
13339            final PackageParser.Package pkg = mPackages.get(packageName);
13340            if (pkg == null) {
13341                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13342                throw new IllegalArgumentException("Unknown package: " + packageName);
13343            }
13344            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13345            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13346        }
13347    }
13348
13349    @Override
13350    public KeySet getSigningKeySet(String packageName) {
13351        if (packageName == null) {
13352            return null;
13353        }
13354        synchronized(mPackages) {
13355            final PackageParser.Package pkg = mPackages.get(packageName);
13356            if (pkg == null) {
13357                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13358                throw new IllegalArgumentException("Unknown package: " + packageName);
13359            }
13360            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13361                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13362                throw new SecurityException("May not access signing KeySet of other apps.");
13363            }
13364            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13365            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13366        }
13367    }
13368
13369    @Override
13370    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13371        if (packageName == null || ks == null) {
13372            return false;
13373        }
13374        synchronized(mPackages) {
13375            final PackageParser.Package pkg = mPackages.get(packageName);
13376            if (pkg == null) {
13377                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13378                throw new IllegalArgumentException("Unknown package: " + packageName);
13379            }
13380            IBinder ksh = ks.getToken();
13381            if (ksh instanceof KeySetHandle) {
13382                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13383                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13384            }
13385            return false;
13386        }
13387    }
13388
13389    @Override
13390    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13391        if (packageName == null || ks == null) {
13392            return false;
13393        }
13394        synchronized(mPackages) {
13395            final PackageParser.Package pkg = mPackages.get(packageName);
13396            if (pkg == null) {
13397                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13398                throw new IllegalArgumentException("Unknown package: " + packageName);
13399            }
13400            IBinder ksh = ks.getToken();
13401            if (ksh instanceof KeySetHandle) {
13402                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13403                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13404            }
13405            return false;
13406        }
13407    }
13408}
13409