PackageManagerService.java revision 376e4ba96222163be1f1cf409dc697550be4a285 
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 android.system.OsConstants.S_IRGRP;
52import static android.system.OsConstants.S_IROTH;
53import static android.system.OsConstants.S_IRWXU;
54import static android.system.OsConstants.S_IXGRP;
55import static android.system.OsConstants.S_IXOTH;
56import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_MANAGED_PROFILE;
57import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_USER_OWNER;
58import static com.android.internal.util.ArrayUtils.appendInt;
59import static com.android.internal.util.ArrayUtils.removeInt;
60
61import android.util.ArrayMap;
62
63import com.android.internal.R;
64import com.android.internal.app.IMediaContainerService;
65import com.android.internal.app.ResolverActivity;
66import com.android.internal.content.NativeLibraryHelper;
67import com.android.internal.content.PackageHelper;
68import com.android.internal.os.IParcelFileDescriptorFactory;
69import com.android.internal.util.ArrayUtils;
70import com.android.internal.util.FastPrintWriter;
71import com.android.internal.util.FastXmlSerializer;
72import com.android.internal.util.IndentingPrintWriter;
73import com.android.internal.util.Preconditions;
74import com.android.server.EventLogTags;
75import com.android.server.IntentResolver;
76import com.android.server.LocalServices;
77import com.android.server.ServiceThread;
78import com.android.server.SystemConfig;
79import com.android.server.Watchdog;
80import com.android.server.pm.Settings.DatabaseVersion;
81import com.android.server.storage.DeviceStorageMonitorInternal;
82
83import org.xmlpull.v1.XmlSerializer;
84
85import android.app.ActivityManager;
86import android.app.ActivityManagerNative;
87import android.app.IActivityManager;
88import android.app.admin.IDevicePolicyManager;
89import android.app.backup.IBackupManager;
90import android.content.BroadcastReceiver;
91import android.content.ComponentName;
92import android.content.Context;
93import android.content.IIntentReceiver;
94import android.content.Intent;
95import android.content.IntentFilter;
96import android.content.IntentSender;
97import android.content.IntentSender.SendIntentException;
98import android.content.ServiceConnection;
99import android.content.pm.ActivityInfo;
100import android.content.pm.ApplicationInfo;
101import android.content.pm.FeatureInfo;
102import android.content.pm.IPackageDataObserver;
103import android.content.pm.IPackageDeleteObserver;
104import android.content.pm.IPackageDeleteObserver2;
105import android.content.pm.IPackageInstallObserver2;
106import android.content.pm.IPackageInstaller;
107import android.content.pm.IPackageManager;
108import android.content.pm.IPackageMoveObserver;
109import android.content.pm.IPackageStatsObserver;
110import android.content.pm.InstallSessionParams;
111import android.content.pm.InstrumentationInfo;
112import android.content.pm.ManifestDigest;
113import android.content.pm.PackageCleanItem;
114import android.content.pm.PackageInfo;
115import android.content.pm.PackageInfoLite;
116import android.content.pm.PackageManager;
117import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
118import android.content.pm.PackageParser.ActivityIntentInfo;
119import android.content.pm.PackageParser.PackageLite;
120import android.content.pm.PackageParser.PackageParserException;
121import android.content.pm.PackageParser;
122import android.content.pm.PackageStats;
123import android.content.pm.PackageUserState;
124import android.content.pm.ParceledListSlice;
125import android.content.pm.PermissionGroupInfo;
126import android.content.pm.PermissionInfo;
127import android.content.pm.ProviderInfo;
128import android.content.pm.ResolveInfo;
129import android.content.pm.ServiceInfo;
130import android.content.pm.Signature;
131import android.content.pm.UserInfo;
132import android.content.pm.VerificationParams;
133import android.content.pm.VerifierDeviceIdentity;
134import android.content.pm.VerifierInfo;
135import android.content.res.Resources;
136import android.hardware.display.DisplayManager;
137import android.net.Uri;
138import android.os.Binder;
139import android.os.Build;
140import android.os.Bundle;
141import android.os.Environment;
142import android.os.Environment.UserEnvironment;
143import android.os.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.File;
180import java.io.FileDescriptor;
181import java.io.FileInputStream;
182import java.io.FileNotFoundException;
183import java.io.FileOutputStream;
184import java.io.FilenameFilter;
185import java.io.IOException;
186import java.io.InputStream;
187import java.io.PrintWriter;
188import java.nio.charset.StandardCharsets;
189import java.security.NoSuchAlgorithmException;
190import java.security.PublicKey;
191import java.security.cert.CertificateEncodingException;
192import java.security.cert.CertificateException;
193import java.text.SimpleDateFormat;
194import java.util.ArrayList;
195import java.util.Arrays;
196import java.util.Collection;
197import java.util.Collections;
198import java.util.Comparator;
199import java.util.Date;
200import java.util.HashMap;
201import java.util.HashSet;
202import java.util.Iterator;
203import java.util.List;
204import java.util.Map;
205import java.util.Set;
206import java.util.concurrent.atomic.AtomicBoolean;
207import java.util.concurrent.atomic.AtomicLong;
208
209import dalvik.system.DexFile;
210import dalvik.system.StaleDexCacheError;
211import dalvik.system.VMRuntime;
212
213import libcore.io.IoUtils;
214
215/**
216 * Keep track of all those .apks everywhere.
217 *
218 * This is very central to the platform's security; please run the unit
219 * tests whenever making modifications here:
220 *
221mmm frameworks/base/tests/AndroidTests
222adb install -r -f out/target/product/passion/data/app/AndroidTests.apk
223adb shell am instrument -w -e class com.android.unit_tests.PackageManagerTests com.android.unit_tests/android.test.InstrumentationTestRunner
224 *
225 * {@hide}
226 */
227public class PackageManagerService extends IPackageManager.Stub {
228    static final String TAG = "PackageManager";
229    static final boolean DEBUG_SETTINGS = false;
230    static final boolean DEBUG_PREFERRED = false;
231    static final boolean DEBUG_UPGRADE = false;
232    private static final boolean DEBUG_INSTALL = false;
233    private static final boolean DEBUG_REMOVE = false;
234    private static final boolean DEBUG_BROADCASTS = false;
235    private static final boolean DEBUG_SHOW_INFO = false;
236    private static final boolean DEBUG_PACKAGE_INFO = false;
237    private static final boolean DEBUG_INTENT_MATCHING = false;
238    private static final boolean DEBUG_PACKAGE_SCANNING = false;
239    private static final boolean DEBUG_VERIFY = false;
240    private static final boolean DEBUG_DEXOPT = false;
241    private static final boolean DEBUG_ABI_SELECTION = false;
242
243    private static final int RADIO_UID = Process.PHONE_UID;
244    private static final int LOG_UID = Process.LOG_UID;
245    private static final int NFC_UID = Process.NFC_UID;
246    private static final int BLUETOOTH_UID = Process.BLUETOOTH_UID;
247    private static final int SHELL_UID = Process.SHELL_UID;
248
249    // Cap the size of permission trees that 3rd party apps can define
250    private static final int MAX_PERMISSION_TREE_FOOTPRINT = 32768;     // characters of text
251
252    // Suffix used during package installation when copying/moving
253    // package apks to install directory.
254    private static final String INSTALL_PACKAGE_SUFFIX = "-";
255
256    // Special value for {@code PackageParser.Package#cpuAbiOverride} to indicate
257    // that the cpuAbiOverride must be clear.
258    private static final String CLEAR_ABI_OVERRIDE = "-";
259
260    static final int SCAN_MONITOR = 1<<0;
261    static final int SCAN_NO_DEX = 1<<1;
262    static final int SCAN_FORCE_DEX = 1<<2;
263    static final int SCAN_UPDATE_SIGNATURE = 1<<3;
264    static final int SCAN_NEW_INSTALL = 1<<4;
265    static final int SCAN_NO_PATHS = 1<<5;
266    static final int SCAN_UPDATE_TIME = 1<<6;
267    static final int SCAN_DEFER_DEX = 1<<7;
268    static final int SCAN_BOOTING = 1<<8;
269    static final int SCAN_TRUSTED_OVERLAY = 1<<9;
270    static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<10;
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 LIB_DIR_NAME = "lib";
310    private static final String LIB64_DIR_NAME = "lib64";
311
312    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
313
314    static final String mTempContainerPrefix = "smdl2tmp";
315
316    private static String sPreferredInstructionSet;
317
318    final ServiceThread mHandlerThread;
319
320    private static final String IDMAP_PREFIX = "/data/resource-cache/";
321    private static final String IDMAP_SUFFIX = "@idmap";
322
323    final PackageHandler mHandler;
324
325    final int mSdkVersion = Build.VERSION.SDK_INT;
326
327    final Context mContext;
328    final boolean mFactoryTest;
329    final boolean mOnlyCore;
330    final DisplayMetrics mMetrics;
331    final int mDefParseFlags;
332    final String[] mSeparateProcesses;
333
334    // This is where all application persistent data goes.
335    final File mAppDataDir;
336
337    // This is where all application persistent data goes for secondary users.
338    final File mUserAppDataDir;
339
340    /** The location for ASEC container files on internal storage. */
341    final String mAsecInternalPath;
342
343    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
344    // LOCK HELD.  Can be called with mInstallLock held.
345    final Installer mInstaller;
346
347    /** Directory where installed third-party apps stored */
348    final File mAppInstallDir;
349
350    /**
351     * Directory to which applications installed internally have their
352     * 32 bit native libraries copied.
353     */
354    private File mAppLib32InstallDir;
355
356    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
357    // apps.
358    final File mDrmAppPrivateInstallDir;
359
360    // ----------------------------------------------------------------
361
362    // Lock for state used when installing and doing other long running
363    // operations.  Methods that must be called with this lock held have
364    // the suffix "LI".
365    final Object mInstallLock = new Object();
366
367    // These are the directories in the 3rd party applications installed dir
368    // that we have currently loaded packages from.  Keys are the application's
369    // installed zip file (absolute codePath), and values are Package.
370    final HashMap<String, PackageParser.Package> mAppDirs =
371            new HashMap<String, PackageParser.Package>();
372
373    // ----------------------------------------------------------------
374
375    // Keys are String (package name), values are Package.  This also serves
376    // as the lock for the global state.  Methods that must be called with
377    // this lock held have the prefix "LP".
378    final HashMap<String, PackageParser.Package> mPackages =
379            new HashMap<String, PackageParser.Package>();
380
381    // Tracks available target package names -> overlay package paths.
382    final HashMap<String, HashMap<String, PackageParser.Package>> mOverlays =
383        new HashMap<String, HashMap<String, PackageParser.Package>>();
384
385    final Settings mSettings;
386    boolean mRestoredSettings;
387
388    // System configuration read by SystemConfig.
389    final int[] mGlobalGids;
390    final SparseArray<HashSet<String>> mSystemPermissions;
391    final HashMap<String, FeatureInfo> mAvailableFeatures;
392
393    // If mac_permissions.xml was found for seinfo labeling.
394    boolean mFoundPolicyFile;
395
396    // If a recursive restorecon of /data/data/<pkg> is needed.
397    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
398
399    public static final class SharedLibraryEntry {
400        public final String path;
401        public final String apk;
402
403        SharedLibraryEntry(String _path, String _apk) {
404            path = _path;
405            apk = _apk;
406        }
407    }
408
409    // Currently known shared libraries.
410    final HashMap<String, SharedLibraryEntry> mSharedLibraries =
411            new HashMap<String, SharedLibraryEntry>();
412
413    // All available activities, for your resolving pleasure.
414    final ActivityIntentResolver mActivities =
415            new ActivityIntentResolver();
416
417    // All available receivers, for your resolving pleasure.
418    final ActivityIntentResolver mReceivers =
419            new ActivityIntentResolver();
420
421    // All available services, for your resolving pleasure.
422    final ServiceIntentResolver mServices = new ServiceIntentResolver();
423
424    // All available providers, for your resolving pleasure.
425    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
426
427    // Mapping from provider base names (first directory in content URI codePath)
428    // to the provider information.
429    final HashMap<String, PackageParser.Provider> mProvidersByAuthority =
430            new HashMap<String, PackageParser.Provider>();
431
432    // Mapping from instrumentation class names to info about them.
433    final HashMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
434            new HashMap<ComponentName, PackageParser.Instrumentation>();
435
436    // Mapping from permission names to info about them.
437    final HashMap<String, PackageParser.PermissionGroup> mPermissionGroups =
438            new HashMap<String, PackageParser.PermissionGroup>();
439
440    // Packages whose data we have transfered into another package, thus
441    // should no longer exist.
442    final HashSet<String> mTransferedPackages = new HashSet<String>();
443
444    // Broadcast actions that are only available to the system.
445    final HashSet<String> mProtectedBroadcasts = new HashSet<String>();
446
447    /** List of packages waiting for verification. */
448    final SparseArray<PackageVerificationState> mPendingVerification
449            = new SparseArray<PackageVerificationState>();
450
451    /** Set of packages associated with each app op permission. */
452    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
453
454    final PackageInstallerService mInstallerService;
455
456    HashSet<PackageParser.Package> mDeferredDexOpt = null;
457
458    // Cache of users who need badging.
459    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
460
461    /** Token for keys in mPendingVerification. */
462    private int mPendingVerificationToken = 0;
463
464    boolean mSystemReady;
465    boolean mSafeMode;
466    boolean mHasSystemUidErrors;
467
468    ApplicationInfo mAndroidApplication;
469    final ActivityInfo mResolveActivity = new ActivityInfo();
470    final ResolveInfo mResolveInfo = new ResolveInfo();
471    ComponentName mResolveComponentName;
472    PackageParser.Package mPlatformPackage;
473    ComponentName mCustomResolverComponentName;
474
475    boolean mResolverReplaced = false;
476
477    // Set of pending broadcasts for aggregating enable/disable of components.
478    static class PendingPackageBroadcasts {
479        // for each user id, a map of <package name -> components within that package>
480        final SparseArray<HashMap<String, ArrayList<String>>> mUidMap;
481
482        public PendingPackageBroadcasts() {
483            mUidMap = new SparseArray<HashMap<String, ArrayList<String>>>(2);
484        }
485
486        public ArrayList<String> get(int userId, String packageName) {
487            HashMap<String, ArrayList<String>> packages = getOrAllocate(userId);
488            return packages.get(packageName);
489        }
490
491        public void put(int userId, String packageName, ArrayList<String> components) {
492            HashMap<String, ArrayList<String>> packages = getOrAllocate(userId);
493            packages.put(packageName, components);
494        }
495
496        public void remove(int userId, String packageName) {
497            HashMap<String, ArrayList<String>> packages = mUidMap.get(userId);
498            if (packages != null) {
499                packages.remove(packageName);
500            }
501        }
502
503        public void remove(int userId) {
504            mUidMap.remove(userId);
505        }
506
507        public int userIdCount() {
508            return mUidMap.size();
509        }
510
511        public int userIdAt(int n) {
512            return mUidMap.keyAt(n);
513        }
514
515        public HashMap<String, ArrayList<String>> packagesForUserId(int userId) {
516            return mUidMap.get(userId);
517        }
518
519        public int size() {
520            // total number of pending broadcast entries across all userIds
521            int num = 0;
522            for (int i = 0; i< mUidMap.size(); i++) {
523                num += mUidMap.valueAt(i).size();
524            }
525            return num;
526        }
527
528        public void clear() {
529            mUidMap.clear();
530        }
531
532        private HashMap<String, ArrayList<String>> getOrAllocate(int userId) {
533            HashMap<String, ArrayList<String>> map = mUidMap.get(userId);
534            if (map == null) {
535                map = new HashMap<String, ArrayList<String>>();
536                mUidMap.put(userId, map);
537            }
538            return map;
539        }
540    }
541    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
542
543    // Service Connection to remote media container service to copy
544    // package uri's from external media onto secure containers
545    // or internal storage.
546    private IMediaContainerService mContainerService = null;
547
548    static final int SEND_PENDING_BROADCAST = 1;
549    static final int MCS_BOUND = 3;
550    static final int END_COPY = 4;
551    static final int INIT_COPY = 5;
552    static final int MCS_UNBIND = 6;
553    static final int START_CLEANING_PACKAGE = 7;
554    static final int FIND_INSTALL_LOC = 8;
555    static final int POST_INSTALL = 9;
556    static final int MCS_RECONNECT = 10;
557    static final int MCS_GIVE_UP = 11;
558    static final int UPDATED_MEDIA_STATUS = 12;
559    static final int WRITE_SETTINGS = 13;
560    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
561    static final int PACKAGE_VERIFIED = 15;
562    static final int CHECK_PENDING_VERIFICATION = 16;
563
564    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
565
566    // Delay time in millisecs
567    static final int BROADCAST_DELAY = 10 * 1000;
568
569    static UserManagerService sUserManager;
570
571    // Stores a list of users whose package restrictions file needs to be updated
572    private HashSet<Integer> mDirtyUsers = new HashSet<Integer>();
573
574    final private DefaultContainerConnection mDefContainerConn =
575            new DefaultContainerConnection();
576    class DefaultContainerConnection implements ServiceConnection {
577        public void onServiceConnected(ComponentName name, IBinder service) {
578            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
579            IMediaContainerService imcs =
580                IMediaContainerService.Stub.asInterface(service);
581            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
582        }
583
584        public void onServiceDisconnected(ComponentName name) {
585            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
586        }
587    };
588
589    // Recordkeeping of restore-after-install operations that are currently in flight
590    // between the Package Manager and the Backup Manager
591    class PostInstallData {
592        public InstallArgs args;
593        public PackageInstalledInfo res;
594
595        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
596            args = _a;
597            res = _r;
598        }
599    };
600    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
601    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
602
603    private final String mRequiredVerifierPackage;
604
605    private final PackageUsage mPackageUsage = new PackageUsage();
606
607    private class PackageUsage {
608        private static final int WRITE_INTERVAL
609            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
610
611        private final Object mFileLock = new Object();
612        private final AtomicLong mLastWritten = new AtomicLong(0);
613        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
614
615        private boolean mIsHistoricalPackageUsageAvailable = true;
616
617        boolean isHistoricalPackageUsageAvailable() {
618            return mIsHistoricalPackageUsageAvailable;
619        }
620
621        void write(boolean force) {
622            if (force) {
623                writeInternal();
624                return;
625            }
626            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
627                && !DEBUG_DEXOPT) {
628                return;
629            }
630            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
631                new Thread("PackageUsage_DiskWriter") {
632                    @Override
633                    public void run() {
634                        try {
635                            writeInternal();
636                        } finally {
637                            mBackgroundWriteRunning.set(false);
638                        }
639                    }
640                }.start();
641            }
642        }
643
644        private void writeInternal() {
645            synchronized (mPackages) {
646                synchronized (mFileLock) {
647                    AtomicFile file = getFile();
648                    FileOutputStream f = null;
649                    try {
650                        f = file.startWrite();
651                        BufferedOutputStream out = new BufferedOutputStream(f);
652                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0660, SYSTEM_UID, PACKAGE_INFO_GID);
653                        StringBuilder sb = new StringBuilder();
654                        for (PackageParser.Package pkg : mPackages.values()) {
655                            if (pkg.mLastPackageUsageTimeInMills == 0) {
656                                continue;
657                            }
658                            sb.setLength(0);
659                            sb.append(pkg.packageName);
660                            sb.append(' ');
661                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
662                            sb.append('\n');
663                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
664                        }
665                        out.flush();
666                        file.finishWrite(f);
667                    } catch (IOException e) {
668                        if (f != null) {
669                            file.failWrite(f);
670                        }
671                        Log.e(TAG, "Failed to write package usage times", e);
672                    }
673                }
674            }
675            mLastWritten.set(SystemClock.elapsedRealtime());
676        }
677
678        void readLP() {
679            synchronized (mFileLock) {
680                AtomicFile file = getFile();
681                BufferedInputStream in = null;
682                try {
683                    in = new BufferedInputStream(file.openRead());
684                    StringBuffer sb = new StringBuffer();
685                    while (true) {
686                        String packageName = readToken(in, sb, ' ');
687                        if (packageName == null) {
688                            break;
689                        }
690                        String timeInMillisString = readToken(in, sb, '\n');
691                        if (timeInMillisString == null) {
692                            throw new IOException("Failed to find last usage time for package "
693                                                  + packageName);
694                        }
695                        PackageParser.Package pkg = mPackages.get(packageName);
696                        if (pkg == null) {
697                            continue;
698                        }
699                        long timeInMillis;
700                        try {
701                            timeInMillis = Long.parseLong(timeInMillisString.toString());
702                        } catch (NumberFormatException e) {
703                            throw new IOException("Failed to parse " + timeInMillisString
704                                                  + " as a long.", e);
705                        }
706                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
707                    }
708                } catch (FileNotFoundException expected) {
709                    mIsHistoricalPackageUsageAvailable = false;
710                } catch (IOException e) {
711                    Log.w(TAG, "Failed to read package usage times", e);
712                } finally {
713                    IoUtils.closeQuietly(in);
714                }
715            }
716            mLastWritten.set(SystemClock.elapsedRealtime());
717        }
718
719        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
720                throws IOException {
721            sb.setLength(0);
722            while (true) {
723                int ch = in.read();
724                if (ch == -1) {
725                    if (sb.length() == 0) {
726                        return null;
727                    }
728                    throw new IOException("Unexpected EOF");
729                }
730                if (ch == endOfToken) {
731                    return sb.toString();
732                }
733                sb.append((char)ch);
734            }
735        }
736
737        private AtomicFile getFile() {
738            File dataDir = Environment.getDataDirectory();
739            File systemDir = new File(dataDir, "system");
740            File fname = new File(systemDir, "package-usage.list");
741            return new AtomicFile(fname);
742        }
743    }
744
745    class PackageHandler extends Handler {
746        private boolean mBound = false;
747        final ArrayList<HandlerParams> mPendingInstalls =
748            new ArrayList<HandlerParams>();
749
750        private boolean connectToService() {
751            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
752                    " DefaultContainerService");
753            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
754            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
755            if (mContext.bindServiceAsUser(service, mDefContainerConn,
756                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
757                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
758                mBound = true;
759                return true;
760            }
761            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
762            return false;
763        }
764
765        private void disconnectService() {
766            mContainerService = null;
767            mBound = false;
768            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
769            mContext.unbindService(mDefContainerConn);
770            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
771        }
772
773        PackageHandler(Looper looper) {
774            super(looper);
775        }
776
777        public void handleMessage(Message msg) {
778            try {
779                doHandleMessage(msg);
780            } finally {
781                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
782            }
783        }
784
785        void doHandleMessage(Message msg) {
786            switch (msg.what) {
787                case INIT_COPY: {
788                    HandlerParams params = (HandlerParams) msg.obj;
789                    int idx = mPendingInstalls.size();
790                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
791                    // If a bind was already initiated we dont really
792                    // need to do anything. The pending install
793                    // will be processed later on.
794                    if (!mBound) {
795                        // If this is the only one pending we might
796                        // have to bind to the service again.
797                        if (!connectToService()) {
798                            Slog.e(TAG, "Failed to bind to media container service");
799                            params.serviceError();
800                            return;
801                        } else {
802                            // Once we bind to the service, the first
803                            // pending request will be processed.
804                            mPendingInstalls.add(idx, params);
805                        }
806                    } else {
807                        mPendingInstalls.add(idx, params);
808                        // Already bound to the service. Just make
809                        // sure we trigger off processing the first request.
810                        if (idx == 0) {
811                            mHandler.sendEmptyMessage(MCS_BOUND);
812                        }
813                    }
814                    break;
815                }
816                case MCS_BOUND: {
817                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
818                    if (msg.obj != null) {
819                        mContainerService = (IMediaContainerService) msg.obj;
820                    }
821                    if (mContainerService == null) {
822                        // Something seriously wrong. Bail out
823                        Slog.e(TAG, "Cannot bind to media container service");
824                        for (HandlerParams params : mPendingInstalls) {
825                            // Indicate service bind error
826                            params.serviceError();
827                        }
828                        mPendingInstalls.clear();
829                    } else if (mPendingInstalls.size() > 0) {
830                        HandlerParams params = mPendingInstalls.get(0);
831                        if (params != null) {
832                            if (params.startCopy()) {
833                                // We are done...  look for more work or to
834                                // go idle.
835                                if (DEBUG_SD_INSTALL) Log.i(TAG,
836                                        "Checking for more work or unbind...");
837                                // Delete pending install
838                                if (mPendingInstalls.size() > 0) {
839                                    mPendingInstalls.remove(0);
840                                }
841                                if (mPendingInstalls.size() == 0) {
842                                    if (mBound) {
843                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
844                                                "Posting delayed MCS_UNBIND");
845                                        removeMessages(MCS_UNBIND);
846                                        Message ubmsg = obtainMessage(MCS_UNBIND);
847                                        // Unbind after a little delay, to avoid
848                                        // continual thrashing.
849                                        sendMessageDelayed(ubmsg, 10000);
850                                    }
851                                } else {
852                                    // There are more pending requests in queue.
853                                    // Just post MCS_BOUND message to trigger processing
854                                    // of next pending install.
855                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
856                                            "Posting MCS_BOUND for next work");
857                                    mHandler.sendEmptyMessage(MCS_BOUND);
858                                }
859                            }
860                        }
861                    } else {
862                        // Should never happen ideally.
863                        Slog.w(TAG, "Empty queue");
864                    }
865                    break;
866                }
867                case MCS_RECONNECT: {
868                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
869                    if (mPendingInstalls.size() > 0) {
870                        if (mBound) {
871                            disconnectService();
872                        }
873                        if (!connectToService()) {
874                            Slog.e(TAG, "Failed to bind to media container service");
875                            for (HandlerParams params : mPendingInstalls) {
876                                // Indicate service bind error
877                                params.serviceError();
878                            }
879                            mPendingInstalls.clear();
880                        }
881                    }
882                    break;
883                }
884                case MCS_UNBIND: {
885                    // If there is no actual work left, then time to unbind.
886                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
887
888                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
889                        if (mBound) {
890                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
891
892                            disconnectService();
893                        }
894                    } else if (mPendingInstalls.size() > 0) {
895                        // There are more pending requests in queue.
896                        // Just post MCS_BOUND message to trigger processing
897                        // of next pending install.
898                        mHandler.sendEmptyMessage(MCS_BOUND);
899                    }
900
901                    break;
902                }
903                case MCS_GIVE_UP: {
904                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
905                    mPendingInstalls.remove(0);
906                    break;
907                }
908                case SEND_PENDING_BROADCAST: {
909                    String packages[];
910                    ArrayList<String> components[];
911                    int size = 0;
912                    int uids[];
913                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
914                    synchronized (mPackages) {
915                        if (mPendingBroadcasts == null) {
916                            return;
917                        }
918                        size = mPendingBroadcasts.size();
919                        if (size <= 0) {
920                            // Nothing to be done. Just return
921                            return;
922                        }
923                        packages = new String[size];
924                        components = new ArrayList[size];
925                        uids = new int[size];
926                        int i = 0;  // filling out the above arrays
927
928                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
929                            int packageUserId = mPendingBroadcasts.userIdAt(n);
930                            Iterator<Map.Entry<String, ArrayList<String>>> it
931                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
932                                            .entrySet().iterator();
933                            while (it.hasNext() && i < size) {
934                                Map.Entry<String, ArrayList<String>> ent = it.next();
935                                packages[i] = ent.getKey();
936                                components[i] = ent.getValue();
937                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
938                                uids[i] = (ps != null)
939                                        ? UserHandle.getUid(packageUserId, ps.appId)
940                                        : -1;
941                                i++;
942                            }
943                        }
944                        size = i;
945                        mPendingBroadcasts.clear();
946                    }
947                    // Send broadcasts
948                    for (int i = 0; i < size; i++) {
949                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
950                    }
951                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
952                    break;
953                }
954                case START_CLEANING_PACKAGE: {
955                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
956                    final String packageName = (String)msg.obj;
957                    final int userId = msg.arg1;
958                    final boolean andCode = msg.arg2 != 0;
959                    synchronized (mPackages) {
960                        if (userId == UserHandle.USER_ALL) {
961                            int[] users = sUserManager.getUserIds();
962                            for (int user : users) {
963                                mSettings.addPackageToCleanLPw(
964                                        new PackageCleanItem(user, packageName, andCode));
965                            }
966                        } else {
967                            mSettings.addPackageToCleanLPw(
968                                    new PackageCleanItem(userId, packageName, andCode));
969                        }
970                    }
971                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
972                    startCleaningPackages();
973                } break;
974                case POST_INSTALL: {
975                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
976                    PostInstallData data = mRunningInstalls.get(msg.arg1);
977                    mRunningInstalls.delete(msg.arg1);
978                    boolean deleteOld = false;
979
980                    if (data != null) {
981                        InstallArgs args = data.args;
982                        PackageInstalledInfo res = data.res;
983
984                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
985                            res.removedInfo.sendBroadcast(false, true, false);
986                            Bundle extras = new Bundle(1);
987                            extras.putInt(Intent.EXTRA_UID, res.uid);
988                            // Determine the set of users who are adding this
989                            // package for the first time vs. those who are seeing
990                            // an update.
991                            int[] firstUsers;
992                            int[] updateUsers = new int[0];
993                            if (res.origUsers == null || res.origUsers.length == 0) {
994                                firstUsers = res.newUsers;
995                            } else {
996                                firstUsers = new int[0];
997                                for (int i=0; i<res.newUsers.length; i++) {
998                                    int user = res.newUsers[i];
999                                    boolean isNew = true;
1000                                    for (int j=0; j<res.origUsers.length; j++) {
1001                                        if (res.origUsers[j] == user) {
1002                                            isNew = false;
1003                                            break;
1004                                        }
1005                                    }
1006                                    if (isNew) {
1007                                        int[] newFirst = new int[firstUsers.length+1];
1008                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1009                                                firstUsers.length);
1010                                        newFirst[firstUsers.length] = user;
1011                                        firstUsers = newFirst;
1012                                    } else {
1013                                        int[] newUpdate = new int[updateUsers.length+1];
1014                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1015                                                updateUsers.length);
1016                                        newUpdate[updateUsers.length] = user;
1017                                        updateUsers = newUpdate;
1018                                    }
1019                                }
1020                            }
1021                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1022                                    res.pkg.applicationInfo.packageName,
1023                                    extras, null, null, firstUsers);
1024                            final boolean update = res.removedInfo.removedPackage != null;
1025                            if (update) {
1026                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1027                            }
1028                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1029                                    res.pkg.applicationInfo.packageName,
1030                                    extras, null, null, updateUsers);
1031                            if (update) {
1032                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1033                                        res.pkg.applicationInfo.packageName,
1034                                        extras, null, null, updateUsers);
1035                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1036                                        null, null,
1037                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1038
1039                                // treat asec-hosted packages like removable media on upgrade
1040                                if (isForwardLocked(res.pkg) || isExternal(res.pkg)) {
1041                                    if (DEBUG_INSTALL) {
1042                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1043                                                + " is ASEC-hosted -> AVAILABLE");
1044                                    }
1045                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1046                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1047                                    pkgList.add(res.pkg.applicationInfo.packageName);
1048                                    sendResourcesChangedBroadcast(true, true,
1049                                            pkgList,uidArray, null);
1050                                }
1051                            }
1052                            if (res.removedInfo.args != null) {
1053                                // Remove the replaced package's older resources safely now
1054                                deleteOld = true;
1055                            }
1056
1057                            // Log current value of "unknown sources" setting
1058                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1059                                getUnknownSourcesSettings());
1060                        }
1061                        // Force a gc to clear up things
1062                        Runtime.getRuntime().gc();
1063                        // We delete after a gc for applications  on sdcard.
1064                        if (deleteOld) {
1065                            synchronized (mInstallLock) {
1066                                res.removedInfo.args.doPostDeleteLI(true);
1067                            }
1068                        }
1069                        if (args.observer != null) {
1070                            try {
1071                                Bundle extras = extrasForInstallResult(res);
1072                                args.observer.onPackageInstalled(res.name, res.returnCode,
1073                                        res.returnMsg, extras);
1074                            } catch (RemoteException e) {
1075                                Slog.i(TAG, "Observer no longer exists.");
1076                            }
1077                        }
1078                    } else {
1079                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1080                    }
1081                } break;
1082                case UPDATED_MEDIA_STATUS: {
1083                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1084                    boolean reportStatus = msg.arg1 == 1;
1085                    boolean doGc = msg.arg2 == 1;
1086                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1087                    if (doGc) {
1088                        // Force a gc to clear up stale containers.
1089                        Runtime.getRuntime().gc();
1090                    }
1091                    if (msg.obj != null) {
1092                        @SuppressWarnings("unchecked")
1093                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1094                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1095                        // Unload containers
1096                        unloadAllContainers(args);
1097                    }
1098                    if (reportStatus) {
1099                        try {
1100                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1101                            PackageHelper.getMountService().finishMediaUpdate();
1102                        } catch (RemoteException e) {
1103                            Log.e(TAG, "MountService not running?");
1104                        }
1105                    }
1106                } break;
1107                case WRITE_SETTINGS: {
1108                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1109                    synchronized (mPackages) {
1110                        removeMessages(WRITE_SETTINGS);
1111                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1112                        mSettings.writeLPr();
1113                        mDirtyUsers.clear();
1114                    }
1115                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1116                } break;
1117                case WRITE_PACKAGE_RESTRICTIONS: {
1118                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1119                    synchronized (mPackages) {
1120                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1121                        for (int userId : mDirtyUsers) {
1122                            mSettings.writePackageRestrictionsLPr(userId);
1123                        }
1124                        mDirtyUsers.clear();
1125                    }
1126                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1127                } break;
1128                case CHECK_PENDING_VERIFICATION: {
1129                    final int verificationId = msg.arg1;
1130                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1131
1132                    if ((state != null) && !state.timeoutExtended()) {
1133                        final InstallArgs args = state.getInstallArgs();
1134                        final Uri originUri = Uri.fromFile(args.originFile);
1135
1136                        Slog.i(TAG, "Verification timed out for " + originUri);
1137                        mPendingVerification.remove(verificationId);
1138
1139                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1140
1141                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1142                            Slog.i(TAG, "Continuing with installation of " + originUri);
1143                            state.setVerifierResponse(Binder.getCallingUid(),
1144                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1145                            broadcastPackageVerified(verificationId, originUri,
1146                                    PackageManager.VERIFICATION_ALLOW,
1147                                    state.getInstallArgs().getUser());
1148                            try {
1149                                ret = args.copyApk(mContainerService, true);
1150                            } catch (RemoteException e) {
1151                                Slog.e(TAG, "Could not contact the ContainerService");
1152                            }
1153                        } else {
1154                            broadcastPackageVerified(verificationId, originUri,
1155                                    PackageManager.VERIFICATION_REJECT,
1156                                    state.getInstallArgs().getUser());
1157                        }
1158
1159                        processPendingInstall(args, ret);
1160                        mHandler.sendEmptyMessage(MCS_UNBIND);
1161                    }
1162                    break;
1163                }
1164                case PACKAGE_VERIFIED: {
1165                    final int verificationId = msg.arg1;
1166
1167                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1168                    if (state == null) {
1169                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1170                        break;
1171                    }
1172
1173                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1174
1175                    state.setVerifierResponse(response.callerUid, response.code);
1176
1177                    if (state.isVerificationComplete()) {
1178                        mPendingVerification.remove(verificationId);
1179
1180                        final InstallArgs args = state.getInstallArgs();
1181                        final Uri originUri = Uri.fromFile(args.originFile);
1182
1183                        int ret;
1184                        if (state.isInstallAllowed()) {
1185                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1186                            broadcastPackageVerified(verificationId, originUri,
1187                                    response.code, state.getInstallArgs().getUser());
1188                            try {
1189                                ret = args.copyApk(mContainerService, true);
1190                            } catch (RemoteException e) {
1191                                Slog.e(TAG, "Could not contact the ContainerService");
1192                            }
1193                        } else {
1194                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1195                        }
1196
1197                        processPendingInstall(args, ret);
1198
1199                        mHandler.sendEmptyMessage(MCS_UNBIND);
1200                    }
1201
1202                    break;
1203                }
1204            }
1205        }
1206    }
1207
1208    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1209        Bundle extras = null;
1210        switch (res.returnCode) {
1211            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1212                extras = new Bundle();
1213                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1214                        res.origPermission);
1215                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1216                        res.origPackage);
1217                break;
1218            }
1219        }
1220        return extras;
1221    }
1222
1223    void scheduleWriteSettingsLocked() {
1224        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1225            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1226        }
1227    }
1228
1229    void scheduleWritePackageRestrictionsLocked(int userId) {
1230        if (!sUserManager.exists(userId)) return;
1231        mDirtyUsers.add(userId);
1232        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1233            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1234        }
1235    }
1236
1237    public static final PackageManagerService main(Context context, Installer installer,
1238            boolean factoryTest, boolean onlyCore) {
1239        PackageManagerService m = new PackageManagerService(context, installer,
1240                factoryTest, onlyCore);
1241        ServiceManager.addService("package", m);
1242        return m;
1243    }
1244
1245    static String[] splitString(String str, char sep) {
1246        int count = 1;
1247        int i = 0;
1248        while ((i=str.indexOf(sep, i)) >= 0) {
1249            count++;
1250            i++;
1251        }
1252
1253        String[] res = new String[count];
1254        i=0;
1255        count = 0;
1256        int lastI=0;
1257        while ((i=str.indexOf(sep, i)) >= 0) {
1258            res[count] = str.substring(lastI, i);
1259            count++;
1260            i++;
1261            lastI = i;
1262        }
1263        res[count] = str.substring(lastI, str.length());
1264        return res;
1265    }
1266
1267    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1268        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1269                Context.DISPLAY_SERVICE);
1270        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1271    }
1272
1273    public PackageManagerService(Context context, Installer installer,
1274            boolean factoryTest, boolean onlyCore) {
1275        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1276                SystemClock.uptimeMillis());
1277
1278        if (mSdkVersion <= 0) {
1279            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1280        }
1281
1282        mContext = context;
1283        mFactoryTest = factoryTest;
1284        mOnlyCore = onlyCore;
1285        mMetrics = new DisplayMetrics();
1286        mSettings = new Settings(context);
1287        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1288                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1289        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1290                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1291        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1292                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1293        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1294                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1295        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1296                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1297        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1298                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1299
1300        String separateProcesses = SystemProperties.get("debug.separate_processes");
1301        if (separateProcesses != null && separateProcesses.length() > 0) {
1302            if ("*".equals(separateProcesses)) {
1303                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1304                mSeparateProcesses = null;
1305                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1306            } else {
1307                mDefParseFlags = 0;
1308                mSeparateProcesses = separateProcesses.split(",");
1309                Slog.w(TAG, "Running with debug.separate_processes: "
1310                        + separateProcesses);
1311            }
1312        } else {
1313            mDefParseFlags = 0;
1314            mSeparateProcesses = null;
1315        }
1316
1317        mInstaller = installer;
1318
1319        getDefaultDisplayMetrics(context, mMetrics);
1320
1321        SystemConfig systemConfig = SystemConfig.getInstance();
1322        mGlobalGids = systemConfig.getGlobalGids();
1323        mSystemPermissions = systemConfig.getSystemPermissions();
1324        mAvailableFeatures = systemConfig.getAvailableFeatures();
1325
1326        synchronized (mInstallLock) {
1327        // writer
1328        synchronized (mPackages) {
1329            mHandlerThread = new ServiceThread(TAG,
1330                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1331            mHandlerThread.start();
1332            mHandler = new PackageHandler(mHandlerThread.getLooper());
1333            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1334
1335            File dataDir = Environment.getDataDirectory();
1336            mAppDataDir = new File(dataDir, "data");
1337            mAppInstallDir = new File(dataDir, "app");
1338            mAppLib32InstallDir = new File(dataDir, "app-lib");
1339            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1340            mUserAppDataDir = new File(dataDir, "user");
1341            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1342
1343            sUserManager = new UserManagerService(context, this,
1344                    mInstallLock, mPackages);
1345
1346            // Propagate permission configuration in to package manager.
1347            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1348                    = systemConfig.getPermissions();
1349            for (int i=0; i<permConfig.size(); i++) {
1350                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1351                BasePermission bp = mSettings.mPermissions.get(perm.name);
1352                if (bp == null) {
1353                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1354                    mSettings.mPermissions.put(perm.name, bp);
1355                }
1356                if (perm.gids != null) {
1357                    bp.gids = appendInts(bp.gids, perm.gids);
1358                }
1359            }
1360
1361            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1362            for (int i=0; i<libConfig.size(); i++) {
1363                mSharedLibraries.put(libConfig.keyAt(i),
1364                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1365            }
1366
1367            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1368
1369            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1370                    mSdkVersion, mOnlyCore);
1371
1372            String customResolverActivity = Resources.getSystem().getString(
1373                    R.string.config_customResolverActivity);
1374            if (TextUtils.isEmpty(customResolverActivity)) {
1375                customResolverActivity = null;
1376            } else {
1377                mCustomResolverComponentName = ComponentName.unflattenFromString(
1378                        customResolverActivity);
1379            }
1380
1381            long startTime = SystemClock.uptimeMillis();
1382
1383            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1384                    startTime);
1385
1386            // Set flag to monitor and not change apk file paths when
1387            // scanning install directories.
1388            int scanMode = SCAN_MONITOR | SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1389
1390            final HashSet<String> alreadyDexOpted = new HashSet<String>();
1391
1392            /**
1393             * Add everything in the in the boot class path to the
1394             * list of process files because dexopt will have been run
1395             * if necessary during zygote startup.
1396             */
1397            String bootClassPath = System.getProperty("java.boot.class.path");
1398            if (bootClassPath != null) {
1399                String[] paths = splitString(bootClassPath, ':');
1400                for (int i=0; i<paths.length; i++) {
1401                    alreadyDexOpted.add(paths[i]);
1402                }
1403            } else {
1404                Slog.w(TAG, "No BOOTCLASSPATH found!");
1405            }
1406
1407            boolean didDexOptLibraryOrTool = false;
1408
1409            final List<String> allInstructionSets = getAllInstructionSets();
1410            final String[] dexCodeInstructionSets =
1411                getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()]));
1412
1413            /**
1414             * Ensure all external libraries have had dexopt run on them.
1415             */
1416            if (mSharedLibraries.size() > 0) {
1417                // NOTE: For now, we're compiling these system "shared libraries"
1418                // (and framework jars) into all available architectures. It's possible
1419                // to compile them only when we come across an app that uses them (there's
1420                // already logic for that in scanPackageLI) but that adds some complexity.
1421                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1422                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1423                        final String lib = libEntry.path;
1424                        if (lib == null) {
1425                            continue;
1426                        }
1427
1428                        try {
1429                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1430                                                                                 dexCodeInstructionSet,
1431                                                                                 false);
1432                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1433                                alreadyDexOpted.add(lib);
1434
1435                                // The list of "shared libraries" we have at this point is
1436                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1437                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1438                                } else {
1439                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1440                                }
1441                                didDexOptLibraryOrTool = true;
1442                            }
1443                        } catch (FileNotFoundException e) {
1444                            Slog.w(TAG, "Library not found: " + lib);
1445                        } catch (IOException e) {
1446                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1447                                    + e.getMessage());
1448                        }
1449                    }
1450                }
1451            }
1452
1453            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1454
1455            // Gross hack for now: we know this file doesn't contain any
1456            // code, so don't dexopt it to avoid the resulting log spew.
1457            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1458
1459            // Gross hack for now: we know this file is only part of
1460            // the boot class path for art, so don't dexopt it to
1461            // avoid the resulting log spew.
1462            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1463
1464            /**
1465             * And there are a number of commands implemented in Java, which
1466             * we currently need to do the dexopt on so that they can be
1467             * run from a non-root shell.
1468             */
1469            String[] frameworkFiles = frameworkDir.list();
1470            if (frameworkFiles != null) {
1471                // TODO: We could compile these only for the most preferred ABI. We should
1472                // first double check that the dex files for these commands are not referenced
1473                // by other system apps.
1474                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1475                    for (int i=0; i<frameworkFiles.length; i++) {
1476                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1477                        String path = libPath.getPath();
1478                        // Skip the file if we already did it.
1479                        if (alreadyDexOpted.contains(path)) {
1480                            continue;
1481                        }
1482                        // Skip the file if it is not a type we want to dexopt.
1483                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1484                            continue;
1485                        }
1486                        try {
1487                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1488                                                                                 dexCodeInstructionSet,
1489                                                                                 false);
1490                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1491                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1492                                didDexOptLibraryOrTool = true;
1493                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1494                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1495                                didDexOptLibraryOrTool = true;
1496                            }
1497                        } catch (FileNotFoundException e) {
1498                            Slog.w(TAG, "Jar not found: " + path);
1499                        } catch (IOException e) {
1500                            Slog.w(TAG, "Exception reading jar: " + path, e);
1501                        }
1502                    }
1503                }
1504            }
1505
1506            if (didDexOptLibraryOrTool) {
1507                // If we dexopted a library or tool, then something on the system has
1508                // changed. Consider this significant, and wipe away all other
1509                // existing dexopt files to ensure we don't leave any dangling around.
1510                //
1511                // TODO: This should be revisited because it isn't as good an indicator
1512                // as it used to be. It used to include the boot classpath but at some point
1513                // DexFile.isDexOptNeeded started returning false for the boot
1514                // class path files in all cases. It is very possible in a
1515                // small maintenance release update that the library and tool
1516                // jars may be unchanged but APK could be removed resulting in
1517                // unused dalvik-cache files.
1518                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1519                    mInstaller.pruneDexCache(dexCodeInstructionSet);
1520                }
1521
1522                // Additionally, delete all dex files from the root directory
1523                // since there shouldn't be any there anyway, unless we're upgrading
1524                // from an older OS version or a build that contained the "old" style
1525                // flat scheme.
1526                mInstaller.pruneDexCache(".");
1527            }
1528
1529            // Collect vendor overlay packages.
1530            // (Do this before scanning any apps.)
1531            // For security and version matching reason, only consider
1532            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1533            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1534            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1535                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanMode | SCAN_TRUSTED_OVERLAY, 0);
1536
1537            // Find base frameworks (resource packages without code).
1538            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1539                    | PackageParser.PARSE_IS_SYSTEM_DIR
1540                    | PackageParser.PARSE_IS_PRIVILEGED,
1541                    scanMode | SCAN_NO_DEX, 0);
1542
1543            // Collected privileged system packages.
1544            File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1545            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1546                    | PackageParser.PARSE_IS_SYSTEM_DIR
1547                    | PackageParser.PARSE_IS_PRIVILEGED, scanMode, 0);
1548
1549            // Collect ordinary system packages.
1550            File systemAppDir = new File(Environment.getRootDirectory(), "app");
1551            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1552                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanMode, 0);
1553
1554            // Collect all vendor packages.
1555            File vendorAppDir = new File("/vendor/app");
1556            try {
1557                vendorAppDir = vendorAppDir.getCanonicalFile();
1558            } catch (IOException e) {
1559                // failed to look up canonical path, continue with original one
1560            }
1561            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1562                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanMode, 0);
1563
1564            // Collect all OEM packages.
1565            File oemAppDir = new File(Environment.getOemDirectory(), "app");
1566            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1567                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanMode, 0);
1568
1569            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1570            mInstaller.moveFiles();
1571
1572            // Prune any system packages that no longer exist.
1573            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1574            if (!mOnlyCore) {
1575                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1576                while (psit.hasNext()) {
1577                    PackageSetting ps = psit.next();
1578
1579                    /*
1580                     * If this is not a system app, it can't be a
1581                     * disable system app.
1582                     */
1583                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1584                        continue;
1585                    }
1586
1587                    /*
1588                     * If the package is scanned, it's not erased.
1589                     */
1590                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1591                    if (scannedPkg != null) {
1592                        /*
1593                         * If the system app is both scanned and in the
1594                         * disabled packages list, then it must have been
1595                         * added via OTA. Remove it from the currently
1596                         * scanned package so the previously user-installed
1597                         * application can be scanned.
1598                         */
1599                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1600                            Slog.i(TAG, "Expecting better updatd system app for " + ps.name
1601                                    + "; removing system app");
1602                            removePackageLI(ps, true);
1603                        }
1604
1605                        continue;
1606                    }
1607
1608                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1609                        psit.remove();
1610                        String msg = "System package " + ps.name
1611                                + " no longer exists; wiping its data";
1612                        reportSettingsProblem(Log.WARN, msg);
1613                        removeDataDirsLI(ps.name);
1614                    } else {
1615                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1616                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1617                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1618                        }
1619                    }
1620                }
1621            }
1622
1623            //look for any incomplete package installations
1624            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1625            //clean up list
1626            for(int i = 0; i < deletePkgsList.size(); i++) {
1627                //clean up here
1628                cleanupInstallFailedPackage(deletePkgsList.get(i));
1629            }
1630            //delete tmp files
1631            deleteTempPackageFiles();
1632
1633            // Remove any shared userIDs that have no associated packages
1634            mSettings.pruneSharedUsersLPw();
1635
1636            if (!mOnlyCore) {
1637                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1638                        SystemClock.uptimeMillis());
1639                scanDirLI(mAppInstallDir, 0, scanMode, 0);
1640
1641                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1642                        scanMode, 0);
1643
1644                /**
1645                 * Remove disable package settings for any updated system
1646                 * apps that were removed via an OTA. If they're not a
1647                 * previously-updated app, remove them completely.
1648                 * Otherwise, just revoke their system-level permissions.
1649                 */
1650                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1651                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1652                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1653
1654                    String msg;
1655                    if (deletedPkg == null) {
1656                        msg = "Updated system package " + deletedAppName
1657                                + " no longer exists; wiping its data";
1658                        removeDataDirsLI(deletedAppName);
1659                    } else {
1660                        msg = "Updated system app + " + deletedAppName
1661                                + " no longer present; removing system privileges for "
1662                                + deletedAppName;
1663
1664                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1665
1666                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1667                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1668                    }
1669                    reportSettingsProblem(Log.WARN, msg);
1670                }
1671            }
1672
1673            // Now that we know all of the shared libraries, update all clients to have
1674            // the correct library paths.
1675            updateAllSharedLibrariesLPw();
1676
1677            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1678                // NOTE: We ignore potential failures here during a system scan (like
1679                // the rest of the commands above) because there's precious little we
1680                // can do about it. A settings error is reported, though.
1681                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1682                        false /* force dexopt */, false /* defer dexopt */);
1683            }
1684
1685            // Now that we know all the packages we are keeping,
1686            // read and update their last usage times.
1687            mPackageUsage.readLP();
1688
1689            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1690                    SystemClock.uptimeMillis());
1691            Slog.i(TAG, "Time to scan packages: "
1692                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1693                    + " seconds");
1694
1695            // If the platform SDK has changed since the last time we booted,
1696            // we need to re-grant app permission to catch any new ones that
1697            // appear.  This is really a hack, and means that apps can in some
1698            // cases get permissions that the user didn't initially explicitly
1699            // allow...  it would be nice to have some better way to handle
1700            // this situation.
1701            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1702                    != mSdkVersion;
1703            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1704                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1705                    + "; regranting permissions for internal storage");
1706            mSettings.mInternalSdkPlatform = mSdkVersion;
1707
1708            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1709                    | (regrantPermissions
1710                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1711                            : 0));
1712
1713            // If this is the first boot, and it is a normal boot, then
1714            // we need to initialize the default preferred apps.
1715            if (!mRestoredSettings && !onlyCore) {
1716                mSettings.readDefaultPreferredAppsLPw(this, 0);
1717            }
1718
1719            // If this is first boot after an OTA, and a normal boot, then
1720            // we need to clear code cache directories.
1721            if (!Build.FINGERPRINT.equals(mSettings.mFingerprint) && !onlyCore) {
1722                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1723                for (String pkgName : mSettings.mPackages.keySet()) {
1724                    deleteCodeCacheDirsLI(pkgName);
1725                }
1726                mSettings.mFingerprint = Build.FINGERPRINT;
1727            }
1728
1729            // All the changes are done during package scanning.
1730            mSettings.updateInternalDatabaseVersion();
1731
1732            // can downgrade to reader
1733            mSettings.writeLPr();
1734
1735            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1736                    SystemClock.uptimeMillis());
1737
1738
1739            mRequiredVerifierPackage = getRequiredVerifierLPr();
1740        } // synchronized (mPackages)
1741        } // synchronized (mInstallLock)
1742
1743        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1744
1745        // Now after opening every single application zip, make sure they
1746        // are all flushed.  Not really needed, but keeps things nice and
1747        // tidy.
1748        Runtime.getRuntime().gc();
1749    }
1750
1751    @Override
1752    public boolean isFirstBoot() {
1753        return !mRestoredSettings;
1754    }
1755
1756    @Override
1757    public boolean isOnlyCoreApps() {
1758        return mOnlyCore;
1759    }
1760
1761    private String getRequiredVerifierLPr() {
1762        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1763        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1764                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1765
1766        String requiredVerifier = null;
1767
1768        final int N = receivers.size();
1769        for (int i = 0; i < N; i++) {
1770            final ResolveInfo info = receivers.get(i);
1771
1772            if (info.activityInfo == null) {
1773                continue;
1774            }
1775
1776            final String packageName = info.activityInfo.packageName;
1777
1778            final PackageSetting ps = mSettings.mPackages.get(packageName);
1779            if (ps == null) {
1780                continue;
1781            }
1782
1783            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1784            if (!gp.grantedPermissions
1785                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1786                continue;
1787            }
1788
1789            if (requiredVerifier != null) {
1790                throw new RuntimeException("There can be only one required verifier");
1791            }
1792
1793            requiredVerifier = packageName;
1794        }
1795
1796        return requiredVerifier;
1797    }
1798
1799    @Override
1800    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1801            throws RemoteException {
1802        try {
1803            return super.onTransact(code, data, reply, flags);
1804        } catch (RuntimeException e) {
1805            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1806                Slog.wtf(TAG, "Package Manager Crash", e);
1807            }
1808            throw e;
1809        }
1810    }
1811
1812    void cleanupInstallFailedPackage(PackageSetting ps) {
1813        Slog.i(TAG, "Cleaning up incompletely installed app: " + ps.name);
1814        removeDataDirsLI(ps.name);
1815
1816        // TODO: try cleaning up codePath directory contents first, since it
1817        // might be a cluster
1818
1819        if (ps.codePath != null) {
1820            if (!ps.codePath.delete()) {
1821                Slog.w(TAG, "Unable to remove old code file: " + ps.codePath);
1822            }
1823        }
1824        if (ps.resourcePath != null) {
1825            if (!ps.resourcePath.delete() && !ps.resourcePath.equals(ps.codePath)) {
1826                Slog.w(TAG, "Unable to remove old code file: " + ps.resourcePath);
1827            }
1828        }
1829        mSettings.removePackageLPw(ps.name);
1830    }
1831
1832    static int[] appendInts(int[] cur, int[] add) {
1833        if (add == null) return cur;
1834        if (cur == null) return add;
1835        final int N = add.length;
1836        for (int i=0; i<N; i++) {
1837            cur = appendInt(cur, add[i]);
1838        }
1839        return cur;
1840    }
1841
1842    static int[] removeInts(int[] cur, int[] rem) {
1843        if (rem == null) return cur;
1844        if (cur == null) return cur;
1845        final int N = rem.length;
1846        for (int i=0; i<N; i++) {
1847            cur = removeInt(cur, rem[i]);
1848        }
1849        return cur;
1850    }
1851
1852    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1853        if (!sUserManager.exists(userId)) return null;
1854        final PackageSetting ps = (PackageSetting) p.mExtras;
1855        if (ps == null) {
1856            return null;
1857        }
1858        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1859        final PackageUserState state = ps.readUserState(userId);
1860        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1861                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1862                state, userId);
1863    }
1864
1865    @Override
1866    public boolean isPackageAvailable(String packageName, int userId) {
1867        if (!sUserManager.exists(userId)) return false;
1868        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "is package available");
1869        synchronized (mPackages) {
1870            PackageParser.Package p = mPackages.get(packageName);
1871            if (p != null) {
1872                final PackageSetting ps = (PackageSetting) p.mExtras;
1873                if (ps != null) {
1874                    final PackageUserState state = ps.readUserState(userId);
1875                    if (state != null) {
1876                        return PackageParser.isAvailable(state);
1877                    }
1878                }
1879            }
1880        }
1881        return false;
1882    }
1883
1884    @Override
1885    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1886        if (!sUserManager.exists(userId)) return null;
1887        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get package info");
1888        // reader
1889        synchronized (mPackages) {
1890            PackageParser.Package p = mPackages.get(packageName);
1891            if (DEBUG_PACKAGE_INFO)
1892                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1893            if (p != null) {
1894                return generatePackageInfo(p, flags, userId);
1895            }
1896            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1897                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1898            }
1899        }
1900        return null;
1901    }
1902
1903    @Override
1904    public String[] currentToCanonicalPackageNames(String[] names) {
1905        String[] out = new String[names.length];
1906        // reader
1907        synchronized (mPackages) {
1908            for (int i=names.length-1; i>=0; i--) {
1909                PackageSetting ps = mSettings.mPackages.get(names[i]);
1910                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1911            }
1912        }
1913        return out;
1914    }
1915
1916    @Override
1917    public String[] canonicalToCurrentPackageNames(String[] names) {
1918        String[] out = new String[names.length];
1919        // reader
1920        synchronized (mPackages) {
1921            for (int i=names.length-1; i>=0; i--) {
1922                String cur = mSettings.mRenamedPackages.get(names[i]);
1923                out[i] = cur != null ? cur : names[i];
1924            }
1925        }
1926        return out;
1927    }
1928
1929    @Override
1930    public int getPackageUid(String packageName, int userId) {
1931        if (!sUserManager.exists(userId)) return -1;
1932        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get package uid");
1933        // reader
1934        synchronized (mPackages) {
1935            PackageParser.Package p = mPackages.get(packageName);
1936            if(p != null) {
1937                return UserHandle.getUid(userId, p.applicationInfo.uid);
1938            }
1939            PackageSetting ps = mSettings.mPackages.get(packageName);
1940            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1941                return -1;
1942            }
1943            p = ps.pkg;
1944            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
1945        }
1946    }
1947
1948    @Override
1949    public int[] getPackageGids(String packageName) {
1950        // reader
1951        synchronized (mPackages) {
1952            PackageParser.Package p = mPackages.get(packageName);
1953            if (DEBUG_PACKAGE_INFO)
1954                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
1955            if (p != null) {
1956                final PackageSetting ps = (PackageSetting)p.mExtras;
1957                return ps.getGids();
1958            }
1959        }
1960        // stupid thing to indicate an error.
1961        return new int[0];
1962    }
1963
1964    static final PermissionInfo generatePermissionInfo(
1965            BasePermission bp, int flags) {
1966        if (bp.perm != null) {
1967            return PackageParser.generatePermissionInfo(bp.perm, flags);
1968        }
1969        PermissionInfo pi = new PermissionInfo();
1970        pi.name = bp.name;
1971        pi.packageName = bp.sourcePackage;
1972        pi.nonLocalizedLabel = bp.name;
1973        pi.protectionLevel = bp.protectionLevel;
1974        return pi;
1975    }
1976
1977    @Override
1978    public PermissionInfo getPermissionInfo(String name, int flags) {
1979        // reader
1980        synchronized (mPackages) {
1981            final BasePermission p = mSettings.mPermissions.get(name);
1982            if (p != null) {
1983                return generatePermissionInfo(p, flags);
1984            }
1985            return null;
1986        }
1987    }
1988
1989    @Override
1990    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
1991        // reader
1992        synchronized (mPackages) {
1993            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
1994            for (BasePermission p : mSettings.mPermissions.values()) {
1995                if (group == null) {
1996                    if (p.perm == null || p.perm.info.group == null) {
1997                        out.add(generatePermissionInfo(p, flags));
1998                    }
1999                } else {
2000                    if (p.perm != null && group.equals(p.perm.info.group)) {
2001                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2002                    }
2003                }
2004            }
2005
2006            if (out.size() > 0) {
2007                return out;
2008            }
2009            return mPermissionGroups.containsKey(group) ? out : null;
2010        }
2011    }
2012
2013    @Override
2014    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2015        // reader
2016        synchronized (mPackages) {
2017            return PackageParser.generatePermissionGroupInfo(
2018                    mPermissionGroups.get(name), flags);
2019        }
2020    }
2021
2022    @Override
2023    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2024        // reader
2025        synchronized (mPackages) {
2026            final int N = mPermissionGroups.size();
2027            ArrayList<PermissionGroupInfo> out
2028                    = new ArrayList<PermissionGroupInfo>(N);
2029            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2030                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2031            }
2032            return out;
2033        }
2034    }
2035
2036    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2037            int userId) {
2038        if (!sUserManager.exists(userId)) return null;
2039        PackageSetting ps = mSettings.mPackages.get(packageName);
2040        if (ps != null) {
2041            if (ps.pkg == null) {
2042                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2043                        flags, userId);
2044                if (pInfo != null) {
2045                    return pInfo.applicationInfo;
2046                }
2047                return null;
2048            }
2049            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2050                    ps.readUserState(userId), userId);
2051        }
2052        return null;
2053    }
2054
2055    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2056            int userId) {
2057        if (!sUserManager.exists(userId)) return null;
2058        PackageSetting ps = mSettings.mPackages.get(packageName);
2059        if (ps != null) {
2060            PackageParser.Package pkg = ps.pkg;
2061            if (pkg == null) {
2062                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2063                    return null;
2064                }
2065                // Only data remains, so we aren't worried about code paths
2066                pkg = new PackageParser.Package(packageName);
2067                pkg.applicationInfo.packageName = packageName;
2068                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2069                pkg.applicationInfo.dataDir =
2070                        getDataPathForPackage(packageName, 0).getPath();
2071                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2072                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2073            }
2074            return generatePackageInfo(pkg, flags, userId);
2075        }
2076        return null;
2077    }
2078
2079    @Override
2080    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2081        if (!sUserManager.exists(userId)) return null;
2082        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get application info");
2083        // writer
2084        synchronized (mPackages) {
2085            PackageParser.Package p = mPackages.get(packageName);
2086            if (DEBUG_PACKAGE_INFO) Log.v(
2087                    TAG, "getApplicationInfo " + packageName
2088                    + ": " + p);
2089            if (p != null) {
2090                PackageSetting ps = mSettings.mPackages.get(packageName);
2091                if (ps == null) return null;
2092                // Note: isEnabledLP() does not apply here - always return info
2093                return PackageParser.generateApplicationInfo(
2094                        p, flags, ps.readUserState(userId), userId);
2095            }
2096            if ("android".equals(packageName)||"system".equals(packageName)) {
2097                return mAndroidApplication;
2098            }
2099            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2100                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2101            }
2102        }
2103        return null;
2104    }
2105
2106
2107    @Override
2108    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2109        mContext.enforceCallingOrSelfPermission(
2110                android.Manifest.permission.CLEAR_APP_CACHE, null);
2111        // Queue up an async operation since clearing cache may take a little while.
2112        mHandler.post(new Runnable() {
2113            public void run() {
2114                mHandler.removeCallbacks(this);
2115                int retCode = -1;
2116                synchronized (mInstallLock) {
2117                    retCode = mInstaller.freeCache(freeStorageSize);
2118                    if (retCode < 0) {
2119                        Slog.w(TAG, "Couldn't clear application caches");
2120                    }
2121                }
2122                if (observer != null) {
2123                    try {
2124                        observer.onRemoveCompleted(null, (retCode >= 0));
2125                    } catch (RemoteException e) {
2126                        Slog.w(TAG, "RemoveException when invoking call back");
2127                    }
2128                }
2129            }
2130        });
2131    }
2132
2133    @Override
2134    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2135        mContext.enforceCallingOrSelfPermission(
2136                android.Manifest.permission.CLEAR_APP_CACHE, null);
2137        // Queue up an async operation since clearing cache may take a little while.
2138        mHandler.post(new Runnable() {
2139            public void run() {
2140                mHandler.removeCallbacks(this);
2141                int retCode = -1;
2142                synchronized (mInstallLock) {
2143                    retCode = mInstaller.freeCache(freeStorageSize);
2144                    if (retCode < 0) {
2145                        Slog.w(TAG, "Couldn't clear application caches");
2146                    }
2147                }
2148                if(pi != null) {
2149                    try {
2150                        // Callback via pending intent
2151                        int code = (retCode >= 0) ? 1 : 0;
2152                        pi.sendIntent(null, code, null,
2153                                null, null);
2154                    } catch (SendIntentException e1) {
2155                        Slog.i(TAG, "Failed to send pending intent");
2156                    }
2157                }
2158            }
2159        });
2160    }
2161
2162    void freeStorage(long freeStorageSize) throws IOException {
2163        synchronized (mInstallLock) {
2164            if (mInstaller.freeCache(freeStorageSize) < 0) {
2165                throw new IOException("Failed to free enough space");
2166            }
2167        }
2168    }
2169
2170    @Override
2171    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2172        if (!sUserManager.exists(userId)) return null;
2173        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get activity info");
2174        synchronized (mPackages) {
2175            PackageParser.Activity a = mActivities.mActivities.get(component);
2176
2177            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2178            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2179                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2180                if (ps == null) return null;
2181                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2182                        userId);
2183            }
2184            if (mResolveComponentName.equals(component)) {
2185                return mResolveActivity;
2186            }
2187        }
2188        return null;
2189    }
2190
2191    @Override
2192    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2193            String resolvedType) {
2194        synchronized (mPackages) {
2195            PackageParser.Activity a = mActivities.mActivities.get(component);
2196            if (a == null) {
2197                return false;
2198            }
2199            for (int i=0; i<a.intents.size(); i++) {
2200                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2201                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2202                    return true;
2203                }
2204            }
2205            return false;
2206        }
2207    }
2208
2209    @Override
2210    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2211        if (!sUserManager.exists(userId)) return null;
2212        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get receiver info");
2213        synchronized (mPackages) {
2214            PackageParser.Activity a = mReceivers.mActivities.get(component);
2215            if (DEBUG_PACKAGE_INFO) Log.v(
2216                TAG, "getReceiverInfo " + component + ": " + a);
2217            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2218                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2219                if (ps == null) return null;
2220                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2221                        userId);
2222            }
2223        }
2224        return null;
2225    }
2226
2227    @Override
2228    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2229        if (!sUserManager.exists(userId)) return null;
2230        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get service info");
2231        synchronized (mPackages) {
2232            PackageParser.Service s = mServices.mServices.get(component);
2233            if (DEBUG_PACKAGE_INFO) Log.v(
2234                TAG, "getServiceInfo " + component + ": " + s);
2235            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2236                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2237                if (ps == null) return null;
2238                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2239                        userId);
2240            }
2241        }
2242        return null;
2243    }
2244
2245    @Override
2246    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2247        if (!sUserManager.exists(userId)) return null;
2248        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "get provider info");
2249        synchronized (mPackages) {
2250            PackageParser.Provider p = mProviders.mProviders.get(component);
2251            if (DEBUG_PACKAGE_INFO) Log.v(
2252                TAG, "getProviderInfo " + component + ": " + p);
2253            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2254                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2255                if (ps == null) return null;
2256                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2257                        userId);
2258            }
2259        }
2260        return null;
2261    }
2262
2263    @Override
2264    public String[] getSystemSharedLibraryNames() {
2265        Set<String> libSet;
2266        synchronized (mPackages) {
2267            libSet = mSharedLibraries.keySet();
2268            int size = libSet.size();
2269            if (size > 0) {
2270                String[] libs = new String[size];
2271                libSet.toArray(libs);
2272                return libs;
2273            }
2274        }
2275        return null;
2276    }
2277
2278    @Override
2279    public FeatureInfo[] getSystemAvailableFeatures() {
2280        Collection<FeatureInfo> featSet;
2281        synchronized (mPackages) {
2282            featSet = mAvailableFeatures.values();
2283            int size = featSet.size();
2284            if (size > 0) {
2285                FeatureInfo[] features = new FeatureInfo[size+1];
2286                featSet.toArray(features);
2287                FeatureInfo fi = new FeatureInfo();
2288                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2289                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2290                features[size] = fi;
2291                return features;
2292            }
2293        }
2294        return null;
2295    }
2296
2297    @Override
2298    public boolean hasSystemFeature(String name) {
2299        synchronized (mPackages) {
2300            return mAvailableFeatures.containsKey(name);
2301        }
2302    }
2303
2304    private void checkValidCaller(int uid, int userId) {
2305        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2306            return;
2307
2308        throw new SecurityException("Caller uid=" + uid
2309                + " is not privileged to communicate with user=" + userId);
2310    }
2311
2312    @Override
2313    public int checkPermission(String permName, String pkgName) {
2314        synchronized (mPackages) {
2315            PackageParser.Package p = mPackages.get(pkgName);
2316            if (p != null && p.mExtras != null) {
2317                PackageSetting ps = (PackageSetting)p.mExtras;
2318                if (ps.sharedUser != null) {
2319                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2320                        return PackageManager.PERMISSION_GRANTED;
2321                    }
2322                } else if (ps.grantedPermissions.contains(permName)) {
2323                    return PackageManager.PERMISSION_GRANTED;
2324                }
2325            }
2326        }
2327        return PackageManager.PERMISSION_DENIED;
2328    }
2329
2330    @Override
2331    public int checkUidPermission(String permName, int uid) {
2332        synchronized (mPackages) {
2333            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2334            if (obj != null) {
2335                GrantedPermissions gp = (GrantedPermissions)obj;
2336                if (gp.grantedPermissions.contains(permName)) {
2337                    return PackageManager.PERMISSION_GRANTED;
2338                }
2339            } else {
2340                HashSet<String> perms = mSystemPermissions.get(uid);
2341                if (perms != null && perms.contains(permName)) {
2342                    return PackageManager.PERMISSION_GRANTED;
2343                }
2344            }
2345        }
2346        return PackageManager.PERMISSION_DENIED;
2347    }
2348
2349    /**
2350     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2351     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2352     * @param message the message to log on security exception
2353     */
2354    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2355            String message) {
2356        if (userId < 0) {
2357            throw new IllegalArgumentException("Invalid userId " + userId);
2358        }
2359        if (userId == UserHandle.getUserId(callingUid)) return;
2360        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2361            if (requireFullPermission) {
2362                mContext.enforceCallingOrSelfPermission(
2363                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2364            } else {
2365                try {
2366                    mContext.enforceCallingOrSelfPermission(
2367                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2368                } catch (SecurityException se) {
2369                    mContext.enforceCallingOrSelfPermission(
2370                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2371                }
2372            }
2373        }
2374    }
2375
2376    private BasePermission findPermissionTreeLP(String permName) {
2377        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2378            if (permName.startsWith(bp.name) &&
2379                    permName.length() > bp.name.length() &&
2380                    permName.charAt(bp.name.length()) == '.') {
2381                return bp;
2382            }
2383        }
2384        return null;
2385    }
2386
2387    private BasePermission checkPermissionTreeLP(String permName) {
2388        if (permName != null) {
2389            BasePermission bp = findPermissionTreeLP(permName);
2390            if (bp != null) {
2391                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2392                    return bp;
2393                }
2394                throw new SecurityException("Calling uid "
2395                        + Binder.getCallingUid()
2396                        + " is not allowed to add to permission tree "
2397                        + bp.name + " owned by uid " + bp.uid);
2398            }
2399        }
2400        throw new SecurityException("No permission tree found for " + permName);
2401    }
2402
2403    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2404        if (s1 == null) {
2405            return s2 == null;
2406        }
2407        if (s2 == null) {
2408            return false;
2409        }
2410        if (s1.getClass() != s2.getClass()) {
2411            return false;
2412        }
2413        return s1.equals(s2);
2414    }
2415
2416    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2417        if (pi1.icon != pi2.icon) return false;
2418        if (pi1.logo != pi2.logo) return false;
2419        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2420        if (!compareStrings(pi1.name, pi2.name)) return false;
2421        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2422        // We'll take care of setting this one.
2423        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2424        // These are not currently stored in settings.
2425        //if (!compareStrings(pi1.group, pi2.group)) return false;
2426        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2427        //if (pi1.labelRes != pi2.labelRes) return false;
2428        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2429        return true;
2430    }
2431
2432    int permissionInfoFootprint(PermissionInfo info) {
2433        int size = info.name.length();
2434        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2435        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2436        return size;
2437    }
2438
2439    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2440        int size = 0;
2441        for (BasePermission perm : mSettings.mPermissions.values()) {
2442            if (perm.uid == tree.uid) {
2443                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2444            }
2445        }
2446        return size;
2447    }
2448
2449    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2450        // We calculate the max size of permissions defined by this uid and throw
2451        // if that plus the size of 'info' would exceed our stated maximum.
2452        if (tree.uid != Process.SYSTEM_UID) {
2453            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2454            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2455                throw new SecurityException("Permission tree size cap exceeded");
2456            }
2457        }
2458    }
2459
2460    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2461        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2462            throw new SecurityException("Label must be specified in permission");
2463        }
2464        BasePermission tree = checkPermissionTreeLP(info.name);
2465        BasePermission bp = mSettings.mPermissions.get(info.name);
2466        boolean added = bp == null;
2467        boolean changed = true;
2468        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2469        if (added) {
2470            enforcePermissionCapLocked(info, tree);
2471            bp = new BasePermission(info.name, tree.sourcePackage,
2472                    BasePermission.TYPE_DYNAMIC);
2473        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2474            throw new SecurityException(
2475                    "Not allowed to modify non-dynamic permission "
2476                    + info.name);
2477        } else {
2478            if (bp.protectionLevel == fixedLevel
2479                    && bp.perm.owner.equals(tree.perm.owner)
2480                    && bp.uid == tree.uid
2481                    && comparePermissionInfos(bp.perm.info, info)) {
2482                changed = false;
2483            }
2484        }
2485        bp.protectionLevel = fixedLevel;
2486        info = new PermissionInfo(info);
2487        info.protectionLevel = fixedLevel;
2488        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2489        bp.perm.info.packageName = tree.perm.info.packageName;
2490        bp.uid = tree.uid;
2491        if (added) {
2492            mSettings.mPermissions.put(info.name, bp);
2493        }
2494        if (changed) {
2495            if (!async) {
2496                mSettings.writeLPr();
2497            } else {
2498                scheduleWriteSettingsLocked();
2499            }
2500        }
2501        return added;
2502    }
2503
2504    @Override
2505    public boolean addPermission(PermissionInfo info) {
2506        synchronized (mPackages) {
2507            return addPermissionLocked(info, false);
2508        }
2509    }
2510
2511    @Override
2512    public boolean addPermissionAsync(PermissionInfo info) {
2513        synchronized (mPackages) {
2514            return addPermissionLocked(info, true);
2515        }
2516    }
2517
2518    @Override
2519    public void removePermission(String name) {
2520        synchronized (mPackages) {
2521            checkPermissionTreeLP(name);
2522            BasePermission bp = mSettings.mPermissions.get(name);
2523            if (bp != null) {
2524                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2525                    throw new SecurityException(
2526                            "Not allowed to modify non-dynamic permission "
2527                            + name);
2528                }
2529                mSettings.mPermissions.remove(name);
2530                mSettings.writeLPr();
2531            }
2532        }
2533    }
2534
2535    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2536        int index = pkg.requestedPermissions.indexOf(bp.name);
2537        if (index == -1) {
2538            throw new SecurityException("Package " + pkg.packageName
2539                    + " has not requested permission " + bp.name);
2540        }
2541        boolean isNormal =
2542                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2543                        == PermissionInfo.PROTECTION_NORMAL);
2544        boolean isDangerous =
2545                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2546                        == PermissionInfo.PROTECTION_DANGEROUS);
2547        boolean isDevelopment =
2548                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2549
2550        if (!isNormal && !isDangerous && !isDevelopment) {
2551            throw new SecurityException("Permission " + bp.name
2552                    + " is not a changeable permission type");
2553        }
2554
2555        if (isNormal || isDangerous) {
2556            if (pkg.requestedPermissionsRequired.get(index)) {
2557                throw new SecurityException("Can't change " + bp.name
2558                        + ". It is required by the application");
2559            }
2560        }
2561    }
2562
2563    @Override
2564    public void grantPermission(String packageName, String permissionName) {
2565        mContext.enforceCallingOrSelfPermission(
2566                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2567        synchronized (mPackages) {
2568            final PackageParser.Package pkg = mPackages.get(packageName);
2569            if (pkg == null) {
2570                throw new IllegalArgumentException("Unknown package: " + packageName);
2571            }
2572            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2573            if (bp == null) {
2574                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2575            }
2576
2577            checkGrantRevokePermissions(pkg, bp);
2578
2579            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2580            if (ps == null) {
2581                return;
2582            }
2583            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2584            if (gp.grantedPermissions.add(permissionName)) {
2585                if (ps.haveGids) {
2586                    gp.gids = appendInts(gp.gids, bp.gids);
2587                }
2588                mSettings.writeLPr();
2589            }
2590        }
2591    }
2592
2593    @Override
2594    public void revokePermission(String packageName, String permissionName) {
2595        int changedAppId = -1;
2596
2597        synchronized (mPackages) {
2598            final PackageParser.Package pkg = mPackages.get(packageName);
2599            if (pkg == null) {
2600                throw new IllegalArgumentException("Unknown package: " + packageName);
2601            }
2602            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2603                mContext.enforceCallingOrSelfPermission(
2604                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2605            }
2606            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2607            if (bp == null) {
2608                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2609            }
2610
2611            checkGrantRevokePermissions(pkg, bp);
2612
2613            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2614            if (ps == null) {
2615                return;
2616            }
2617            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2618            if (gp.grantedPermissions.remove(permissionName)) {
2619                gp.grantedPermissions.remove(permissionName);
2620                if (ps.haveGids) {
2621                    gp.gids = removeInts(gp.gids, bp.gids);
2622                }
2623                mSettings.writeLPr();
2624                changedAppId = ps.appId;
2625            }
2626        }
2627
2628        if (changedAppId >= 0) {
2629            // We changed the perm on someone, kill its processes.
2630            IActivityManager am = ActivityManagerNative.getDefault();
2631            if (am != null) {
2632                final int callingUserId = UserHandle.getCallingUserId();
2633                final long ident = Binder.clearCallingIdentity();
2634                try {
2635                    //XXX we should only revoke for the calling user's app permissions,
2636                    // but for now we impact all users.
2637                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2638                    //        "revoke " + permissionName);
2639                    int[] users = sUserManager.getUserIds();
2640                    for (int user : users) {
2641                        am.killUid(UserHandle.getUid(user, changedAppId),
2642                                "revoke " + permissionName);
2643                    }
2644                } catch (RemoteException e) {
2645                } finally {
2646                    Binder.restoreCallingIdentity(ident);
2647                }
2648            }
2649        }
2650    }
2651
2652    @Override
2653    public boolean isProtectedBroadcast(String actionName) {
2654        synchronized (mPackages) {
2655            return mProtectedBroadcasts.contains(actionName);
2656        }
2657    }
2658
2659    @Override
2660    public int checkSignatures(String pkg1, String pkg2) {
2661        synchronized (mPackages) {
2662            final PackageParser.Package p1 = mPackages.get(pkg1);
2663            final PackageParser.Package p2 = mPackages.get(pkg2);
2664            if (p1 == null || p1.mExtras == null
2665                    || p2 == null || p2.mExtras == null) {
2666                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2667            }
2668            return compareSignatures(p1.mSignatures, p2.mSignatures);
2669        }
2670    }
2671
2672    @Override
2673    public int checkUidSignatures(int uid1, int uid2) {
2674        // Map to base uids.
2675        uid1 = UserHandle.getAppId(uid1);
2676        uid2 = UserHandle.getAppId(uid2);
2677        // reader
2678        synchronized (mPackages) {
2679            Signature[] s1;
2680            Signature[] s2;
2681            Object obj = mSettings.getUserIdLPr(uid1);
2682            if (obj != null) {
2683                if (obj instanceof SharedUserSetting) {
2684                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2685                } else if (obj instanceof PackageSetting) {
2686                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2687                } else {
2688                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2689                }
2690            } else {
2691                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2692            }
2693            obj = mSettings.getUserIdLPr(uid2);
2694            if (obj != null) {
2695                if (obj instanceof SharedUserSetting) {
2696                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2697                } else if (obj instanceof PackageSetting) {
2698                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2699                } else {
2700                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2701                }
2702            } else {
2703                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2704            }
2705            return compareSignatures(s1, s2);
2706        }
2707    }
2708
2709    /**
2710     * Compares two sets of signatures. Returns:
2711     * <br />
2712     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2713     * <br />
2714     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2715     * <br />
2716     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2717     * <br />
2718     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2719     * <br />
2720     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2721     */
2722    static int compareSignatures(Signature[] s1, Signature[] s2) {
2723        if (s1 == null) {
2724            return s2 == null
2725                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2726                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2727        }
2728
2729        if (s2 == null) {
2730            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2731        }
2732
2733        if (s1.length != s2.length) {
2734            return PackageManager.SIGNATURE_NO_MATCH;
2735        }
2736
2737        // Since both signature sets are of size 1, we can compare without HashSets.
2738        if (s1.length == 1) {
2739            return s1[0].equals(s2[0]) ?
2740                    PackageManager.SIGNATURE_MATCH :
2741                    PackageManager.SIGNATURE_NO_MATCH;
2742        }
2743
2744        HashSet<Signature> set1 = new HashSet<Signature>();
2745        for (Signature sig : s1) {
2746            set1.add(sig);
2747        }
2748        HashSet<Signature> set2 = new HashSet<Signature>();
2749        for (Signature sig : s2) {
2750            set2.add(sig);
2751        }
2752        // Make sure s2 contains all signatures in s1.
2753        if (set1.equals(set2)) {
2754            return PackageManager.SIGNATURE_MATCH;
2755        }
2756        return PackageManager.SIGNATURE_NO_MATCH;
2757    }
2758
2759    /**
2760     * If the database version for this type of package (internal storage or
2761     * external storage) is less than the version where package signatures
2762     * were updated, return true.
2763     */
2764    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2765        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2766                DatabaseVersion.SIGNATURE_END_ENTITY))
2767                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2768                        DatabaseVersion.SIGNATURE_END_ENTITY));
2769    }
2770
2771    /**
2772     * Used for backward compatibility to make sure any packages with
2773     * certificate chains get upgraded to the new style. {@code existingSigs}
2774     * will be in the old format (since they were stored on disk from before the
2775     * system upgrade) and {@code scannedSigs} will be in the newer format.
2776     */
2777    private int compareSignaturesCompat(PackageSignatures existingSigs,
2778            PackageParser.Package scannedPkg) {
2779        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2780            return PackageManager.SIGNATURE_NO_MATCH;
2781        }
2782
2783        HashSet<Signature> existingSet = new HashSet<Signature>();
2784        for (Signature sig : existingSigs.mSignatures) {
2785            existingSet.add(sig);
2786        }
2787        HashSet<Signature> scannedCompatSet = new HashSet<Signature>();
2788        for (Signature sig : scannedPkg.mSignatures) {
2789            try {
2790                Signature[] chainSignatures = sig.getChainSignatures();
2791                for (Signature chainSig : chainSignatures) {
2792                    scannedCompatSet.add(chainSig);
2793                }
2794            } catch (CertificateEncodingException e) {
2795                scannedCompatSet.add(sig);
2796            }
2797        }
2798        /*
2799         * Make sure the expanded scanned set contains all signatures in the
2800         * existing one.
2801         */
2802        if (scannedCompatSet.equals(existingSet)) {
2803            // Migrate the old signatures to the new scheme.
2804            existingSigs.assignSignatures(scannedPkg.mSignatures);
2805            // The new KeySets will be re-added later in the scanning process.
2806            synchronized (mPackages) {
2807                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2808            }
2809            return PackageManager.SIGNATURE_MATCH;
2810        }
2811        return PackageManager.SIGNATURE_NO_MATCH;
2812    }
2813
2814    @Override
2815    public String[] getPackagesForUid(int uid) {
2816        uid = UserHandle.getAppId(uid);
2817        // reader
2818        synchronized (mPackages) {
2819            Object obj = mSettings.getUserIdLPr(uid);
2820            if (obj instanceof SharedUserSetting) {
2821                final SharedUserSetting sus = (SharedUserSetting) obj;
2822                final int N = sus.packages.size();
2823                final String[] res = new String[N];
2824                final Iterator<PackageSetting> it = sus.packages.iterator();
2825                int i = 0;
2826                while (it.hasNext()) {
2827                    res[i++] = it.next().name;
2828                }
2829                return res;
2830            } else if (obj instanceof PackageSetting) {
2831                final PackageSetting ps = (PackageSetting) obj;
2832                return new String[] { ps.name };
2833            }
2834        }
2835        return null;
2836    }
2837
2838    @Override
2839    public String getNameForUid(int uid) {
2840        // reader
2841        synchronized (mPackages) {
2842            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2843            if (obj instanceof SharedUserSetting) {
2844                final SharedUserSetting sus = (SharedUserSetting) obj;
2845                return sus.name + ":" + sus.userId;
2846            } else if (obj instanceof PackageSetting) {
2847                final PackageSetting ps = (PackageSetting) obj;
2848                return ps.name;
2849            }
2850        }
2851        return null;
2852    }
2853
2854    @Override
2855    public int getUidForSharedUser(String sharedUserName) {
2856        if(sharedUserName == null) {
2857            return -1;
2858        }
2859        // reader
2860        synchronized (mPackages) {
2861            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, false);
2862            if (suid == null) {
2863                return -1;
2864            }
2865            return suid.userId;
2866        }
2867    }
2868
2869    @Override
2870    public int getFlagsForUid(int uid) {
2871        synchronized (mPackages) {
2872            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2873            if (obj instanceof SharedUserSetting) {
2874                final SharedUserSetting sus = (SharedUserSetting) obj;
2875                return sus.pkgFlags;
2876            } else if (obj instanceof PackageSetting) {
2877                final PackageSetting ps = (PackageSetting) obj;
2878                return ps.pkgFlags;
2879            }
2880        }
2881        return 0;
2882    }
2883
2884    @Override
2885    public String[] getAppOpPermissionPackages(String permissionName) {
2886        synchronized (mPackages) {
2887            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
2888            if (pkgs == null) {
2889                return null;
2890            }
2891            return pkgs.toArray(new String[pkgs.size()]);
2892        }
2893    }
2894
2895    @Override
2896    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
2897            int flags, int userId) {
2898        if (!sUserManager.exists(userId)) return null;
2899        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "resolve intent");
2900        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2901        return chooseBestActivity(intent, resolvedType, flags, query, userId);
2902    }
2903
2904    @Override
2905    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
2906            IntentFilter filter, int match, ComponentName activity) {
2907        final int userId = UserHandle.getCallingUserId();
2908        if (DEBUG_PREFERRED) {
2909            Log.v(TAG, "setLastChosenActivity intent=" + intent
2910                + " resolvedType=" + resolvedType
2911                + " flags=" + flags
2912                + " filter=" + filter
2913                + " match=" + match
2914                + " activity=" + activity);
2915            filter.dump(new PrintStreamPrinter(System.out), "    ");
2916        }
2917        intent.setComponent(null);
2918        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2919        // Find any earlier preferred or last chosen entries and nuke them
2920        findPreferredActivity(intent, resolvedType,
2921                flags, query, 0, false, true, false, userId);
2922        // Add the new activity as the last chosen for this filter
2923        addPreferredActivityInternal(filter, match, null, activity, false, userId);
2924    }
2925
2926    @Override
2927    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
2928        final int userId = UserHandle.getCallingUserId();
2929        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
2930        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2931        return findPreferredActivity(intent, resolvedType, flags, query, 0,
2932                false, false, false, userId);
2933    }
2934
2935    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
2936            int flags, List<ResolveInfo> query, int userId) {
2937        if (query != null) {
2938            final int N = query.size();
2939            if (N == 1) {
2940                return query.get(0);
2941            } else if (N > 1) {
2942                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
2943                // If there is more than one activity with the same priority,
2944                // then let the user decide between them.
2945                ResolveInfo r0 = query.get(0);
2946                ResolveInfo r1 = query.get(1);
2947                if (DEBUG_INTENT_MATCHING || debug) {
2948                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
2949                            + r1.activityInfo.name + "=" + r1.priority);
2950                }
2951                // If the first activity has a higher priority, or a different
2952                // default, then it is always desireable to pick it.
2953                if (r0.priority != r1.priority
2954                        || r0.preferredOrder != r1.preferredOrder
2955                        || r0.isDefault != r1.isDefault) {
2956                    return query.get(0);
2957                }
2958                // If we have saved a preference for a preferred activity for
2959                // this Intent, use that.
2960                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
2961                        flags, query, r0.priority, true, false, debug, userId);
2962                if (ri != null) {
2963                    return ri;
2964                }
2965                if (userId != 0) {
2966                    ri = new ResolveInfo(mResolveInfo);
2967                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
2968                    ri.activityInfo.applicationInfo = new ApplicationInfo(
2969                            ri.activityInfo.applicationInfo);
2970                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
2971                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
2972                    return ri;
2973                }
2974                return mResolveInfo;
2975            }
2976        }
2977        return null;
2978    }
2979
2980    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
2981            int flags, List<ResolveInfo> query, boolean debug, int userId) {
2982        final int N = query.size();
2983        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
2984                .get(userId);
2985        // Get the list of persistent preferred activities that handle the intent
2986        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
2987        List<PersistentPreferredActivity> pprefs = ppir != null
2988                ? ppir.queryIntent(intent, resolvedType,
2989                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
2990                : null;
2991        if (pprefs != null && pprefs.size() > 0) {
2992            final int M = pprefs.size();
2993            for (int i=0; i<M; i++) {
2994                final PersistentPreferredActivity ppa = pprefs.get(i);
2995                if (DEBUG_PREFERRED || debug) {
2996                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
2997                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
2998                            + "\n  component=" + ppa.mComponent);
2999                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3000                }
3001                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3002                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3003                if (DEBUG_PREFERRED || debug) {
3004                    Slog.v(TAG, "Found persistent preferred activity:");
3005                    if (ai != null) {
3006                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3007                    } else {
3008                        Slog.v(TAG, "  null");
3009                    }
3010                }
3011                if (ai == null) {
3012                    // This previously registered persistent preferred activity
3013                    // component is no longer known. Ignore it and do NOT remove it.
3014                    continue;
3015                }
3016                for (int j=0; j<N; j++) {
3017                    final ResolveInfo ri = query.get(j);
3018                    if (!ri.activityInfo.applicationInfo.packageName
3019                            .equals(ai.applicationInfo.packageName)) {
3020                        continue;
3021                    }
3022                    if (!ri.activityInfo.name.equals(ai.name)) {
3023                        continue;
3024                    }
3025                    //  Found a persistent preference that can handle the intent.
3026                    if (DEBUG_PREFERRED || debug) {
3027                        Slog.v(TAG, "Returning persistent preferred activity: " +
3028                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3029                    }
3030                    return ri;
3031                }
3032            }
3033        }
3034        return null;
3035    }
3036
3037    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3038            List<ResolveInfo> query, int priority, boolean always,
3039            boolean removeMatches, boolean debug, int userId) {
3040        if (!sUserManager.exists(userId)) return null;
3041        // writer
3042        synchronized (mPackages) {
3043            if (intent.getSelector() != null) {
3044                intent = intent.getSelector();
3045            }
3046            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3047
3048            // Try to find a matching persistent preferred activity.
3049            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3050                    debug, userId);
3051
3052            // If a persistent preferred activity matched, use it.
3053            if (pri != null) {
3054                return pri;
3055            }
3056
3057            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3058            // Get the list of preferred activities that handle the intent
3059            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3060            List<PreferredActivity> prefs = pir != null
3061                    ? pir.queryIntent(intent, resolvedType,
3062                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3063                    : null;
3064            if (prefs != null && prefs.size() > 0) {
3065                // First figure out how good the original match set is.
3066                // We will only allow preferred activities that came
3067                // from the same match quality.
3068                int match = 0;
3069
3070                if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3071
3072                final int N = query.size();
3073                for (int j=0; j<N; j++) {
3074                    final ResolveInfo ri = query.get(j);
3075                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3076                            + ": 0x" + Integer.toHexString(match));
3077                    if (ri.match > match) {
3078                        match = ri.match;
3079                    }
3080                }
3081
3082                if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3083                        + Integer.toHexString(match));
3084
3085                match &= IntentFilter.MATCH_CATEGORY_MASK;
3086                final int M = prefs.size();
3087                for (int i=0; i<M; i++) {
3088                    final PreferredActivity pa = prefs.get(i);
3089                    if (DEBUG_PREFERRED || debug) {
3090                        Slog.v(TAG, "Checking PreferredActivity ds="
3091                                + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3092                                + "\n  component=" + pa.mPref.mComponent);
3093                        pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3094                    }
3095                    if (pa.mPref.mMatch != match) {
3096                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3097                                + Integer.toHexString(pa.mPref.mMatch));
3098                        continue;
3099                    }
3100                    // If it's not an "always" type preferred activity and that's what we're
3101                    // looking for, skip it.
3102                    if (always && !pa.mPref.mAlways) {
3103                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3104                        continue;
3105                    }
3106                    final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3107                            flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3108                    if (DEBUG_PREFERRED || debug) {
3109                        Slog.v(TAG, "Found preferred activity:");
3110                        if (ai != null) {
3111                            ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3112                        } else {
3113                            Slog.v(TAG, "  null");
3114                        }
3115                    }
3116                    if (ai == null) {
3117                        // This previously registered preferred activity
3118                        // component is no longer known.  Most likely an update
3119                        // to the app was installed and in the new version this
3120                        // component no longer exists.  Clean it up by removing
3121                        // it from the preferred activities list, and skip it.
3122                        Slog.w(TAG, "Removing dangling preferred activity: "
3123                                + pa.mPref.mComponent);
3124                        pir.removeFilter(pa);
3125                        continue;
3126                    }
3127                    for (int j=0; j<N; j++) {
3128                        final ResolveInfo ri = query.get(j);
3129                        if (!ri.activityInfo.applicationInfo.packageName
3130                                .equals(ai.applicationInfo.packageName)) {
3131                            continue;
3132                        }
3133                        if (!ri.activityInfo.name.equals(ai.name)) {
3134                            continue;
3135                        }
3136
3137                        if (removeMatches) {
3138                            pir.removeFilter(pa);
3139                            if (DEBUG_PREFERRED) {
3140                                Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3141                            }
3142                            break;
3143                        }
3144
3145                        // Okay we found a previously set preferred or last chosen app.
3146                        // If the result set is different from when this
3147                        // was created, we need to clear it and re-ask the
3148                        // user their preference, if we're looking for an "always" type entry.
3149                        if (always && !pa.mPref.sameSet(query, priority)) {
3150                            Slog.i(TAG, "Result set changed, dropping preferred activity for "
3151                                    + intent + " type " + resolvedType);
3152                            if (DEBUG_PREFERRED) {
3153                                Slog.v(TAG, "Removing preferred activity since set changed "
3154                                        + pa.mPref.mComponent);
3155                            }
3156                            pir.removeFilter(pa);
3157                            // Re-add the filter as a "last chosen" entry (!always)
3158                            PreferredActivity lastChosen = new PreferredActivity(
3159                                    pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3160                            pir.addFilter(lastChosen);
3161                            mSettings.writePackageRestrictionsLPr(userId);
3162                            return null;
3163                        }
3164
3165                        // Yay! Either the set matched or we're looking for the last chosen
3166                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3167                                + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3168                        mSettings.writePackageRestrictionsLPr(userId);
3169                        return ri;
3170                    }
3171                }
3172            }
3173            mSettings.writePackageRestrictionsLPr(userId);
3174        }
3175        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3176        return null;
3177    }
3178
3179    /*
3180     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3181     */
3182    @Override
3183    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3184            int targetUserId) {
3185        mContext.enforceCallingOrSelfPermission(
3186                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3187        List<CrossProfileIntentFilter> matches =
3188                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3189        if (matches != null) {
3190            int size = matches.size();
3191            for (int i = 0; i < size; i++) {
3192                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3193            }
3194        }
3195        ArrayList<String> packageNames = null;
3196        SparseArray<ArrayList<String>> fromSource =
3197                mSettings.mCrossProfilePackageInfo.get(sourceUserId);
3198        if (fromSource != null) {
3199            packageNames = fromSource.get(targetUserId);
3200            if (packageNames != null) {
3201                // We need the package name, so we try to resolve with the loosest flags possible
3202                List<ResolveInfo> resolveInfos = mActivities.queryIntent(intent, resolvedType,
3203                        PackageManager.GET_UNINSTALLED_PACKAGES, targetUserId);
3204                int count = resolveInfos.size();
3205                for (int i = 0; i < count; i++) {
3206                    ResolveInfo resolveInfo = resolveInfos.get(i);
3207                    if (packageNames.contains(resolveInfo.activityInfo.packageName)) {
3208                        return true;
3209                    }
3210                }
3211            }
3212        }
3213        return false;
3214    }
3215
3216    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3217            String resolvedType, int userId) {
3218        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3219        if (resolver != null) {
3220            return resolver.queryIntent(intent, resolvedType, false, userId);
3221        }
3222        return null;
3223    }
3224
3225    @Override
3226    public List<ResolveInfo> queryIntentActivities(Intent intent,
3227            String resolvedType, int flags, int userId) {
3228        if (!sUserManager.exists(userId)) return Collections.emptyList();
3229        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, "query intent activities");
3230        ComponentName comp = intent.getComponent();
3231        if (comp == null) {
3232            if (intent.getSelector() != null) {
3233                intent = intent.getSelector();
3234                comp = intent.getComponent();
3235            }
3236        }
3237
3238        if (comp != null) {
3239            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3240            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3241            if (ai != null) {
3242                final ResolveInfo ri = new ResolveInfo();
3243                ri.activityInfo = ai;
3244                list.add(ri);
3245            }
3246            return list;
3247        }
3248
3249        // reader
3250        synchronized (mPackages) {
3251            final String pkgName = intent.getPackage();
3252            boolean queryCrossProfile = (flags & PackageManager.NO_CROSS_PROFILE) == 0;
3253            if (pkgName == null) {
3254                ResolveInfo resolveInfo = null;
3255                if (queryCrossProfile) {
3256                    // Check if the intent needs to be forwarded to another user for this package
3257                    ArrayList<ResolveInfo> crossProfileResult =
3258                            queryIntentActivitiesCrossProfilePackage(
3259                                    intent, resolvedType, flags, userId);
3260                    if (!crossProfileResult.isEmpty()) {
3261                        // Skip the current profile
3262                        return crossProfileResult;
3263                    }
3264                    List<CrossProfileIntentFilter> matchingFilters =
3265                            getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3266                    // Check for results that need to skip the current profile.
3267                    resolveInfo = querySkipCurrentProfileIntents(matchingFilters, intent,
3268                            resolvedType, flags, userId);
3269                    if (resolveInfo != null) {
3270                        List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3271                        result.add(resolveInfo);
3272                        return result;
3273                    }
3274                    // Check for cross profile results.
3275                    resolveInfo = queryCrossProfileIntents(
3276                            matchingFilters, intent, resolvedType, flags, userId);
3277                }
3278                // Check for results in the current profile.
3279                List<ResolveInfo> result = mActivities.queryIntent(
3280                        intent, resolvedType, flags, userId);
3281                if (resolveInfo != null) {
3282                    result.add(resolveInfo);
3283                }
3284                return result;
3285            }
3286            final PackageParser.Package pkg = mPackages.get(pkgName);
3287            if (pkg != null) {
3288                if (queryCrossProfile) {
3289                    ArrayList<ResolveInfo> crossProfileResult =
3290                            queryIntentActivitiesCrossProfilePackage(
3291                                    intent, resolvedType, flags, userId, pkg, pkgName);
3292                    if (!crossProfileResult.isEmpty()) {
3293                        // Skip the current profile
3294                        return crossProfileResult;
3295                    }
3296                }
3297                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3298                        pkg.activities, userId);
3299            }
3300            return new ArrayList<ResolveInfo>();
3301        }
3302    }
3303
3304    private ResolveInfo querySkipCurrentProfileIntents(
3305            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3306            int flags, int sourceUserId) {
3307        if (matchingFilters != null) {
3308            int size = matchingFilters.size();
3309            for (int i = 0; i < size; i ++) {
3310                CrossProfileIntentFilter filter = matchingFilters.get(i);
3311                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3312                    // Checking if there are activities in the target user that can handle the
3313                    // intent.
3314                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3315                            flags, sourceUserId);
3316                    if (resolveInfo != null) {
3317                        return resolveInfo;
3318                    }
3319                }
3320            }
3321        }
3322        return null;
3323    }
3324
3325    private ArrayList<ResolveInfo> queryIntentActivitiesCrossProfilePackage(
3326            Intent intent, String resolvedType, int flags, int userId) {
3327        ArrayList<ResolveInfo> matchingResolveInfos = new ArrayList<ResolveInfo>();
3328        SparseArray<ArrayList<String>> sourceForwardingInfo =
3329                mSettings.mCrossProfilePackageInfo.get(userId);
3330        if (sourceForwardingInfo != null) {
3331            int NI = sourceForwardingInfo.size();
3332            for (int i = 0; i < NI; i++) {
3333                int targetUserId = sourceForwardingInfo.keyAt(i);
3334                ArrayList<String> packageNames = sourceForwardingInfo.valueAt(i);
3335                List<ResolveInfo> resolveInfos = mActivities.queryIntent(
3336                        intent, resolvedType, flags, targetUserId);
3337                int NJ = resolveInfos.size();
3338                for (int j = 0; j < NJ; j++) {
3339                    ResolveInfo resolveInfo = resolveInfos.get(j);
3340                    if (packageNames.contains(resolveInfo.activityInfo.packageName)) {
3341                        matchingResolveInfos.add(createForwardingResolveInfo(
3342                                resolveInfo.filter, userId, targetUserId));
3343                    }
3344                }
3345            }
3346        }
3347        return matchingResolveInfos;
3348    }
3349
3350    private ArrayList<ResolveInfo> queryIntentActivitiesCrossProfilePackage(
3351            Intent intent, String resolvedType, int flags, int userId, PackageParser.Package pkg,
3352            String packageName) {
3353        ArrayList<ResolveInfo> matchingResolveInfos = new ArrayList<ResolveInfo>();
3354        SparseArray<ArrayList<String>> sourceForwardingInfo =
3355                mSettings.mCrossProfilePackageInfo.get(userId);
3356        if (sourceForwardingInfo != null) {
3357            int NI = sourceForwardingInfo.size();
3358            for (int i = 0; i < NI; i++) {
3359                int targetUserId = sourceForwardingInfo.keyAt(i);
3360                if (sourceForwardingInfo.valueAt(i).contains(packageName)) {
3361                    List<ResolveInfo> resolveInfos = mActivities.queryIntentForPackage(
3362                            intent, resolvedType, flags, pkg.activities, targetUserId);
3363                    int NJ = resolveInfos.size();
3364                    for (int j = 0; j < NJ; j++) {
3365                        ResolveInfo resolveInfo = resolveInfos.get(j);
3366                        matchingResolveInfos.add(createForwardingResolveInfo(
3367                                resolveInfo.filter, userId, targetUserId));
3368                    }
3369                }
3370            }
3371        }
3372        return matchingResolveInfos;
3373    }
3374
3375    // Return matching ResolveInfo if any for skip current profile intent filters.
3376    private ResolveInfo queryCrossProfileIntents(
3377            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3378            int flags, int sourceUserId) {
3379        if (matchingFilters != null) {
3380            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3381            // match the same intent. For performance reasons, it is better not to
3382            // run queryIntent twice for the same userId
3383            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3384            int size = matchingFilters.size();
3385            for (int i = 0; i < size; i++) {
3386                CrossProfileIntentFilter filter = matchingFilters.get(i);
3387                int targetUserId = filter.getTargetUserId();
3388                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3389                        && !alreadyTriedUserIds.get(targetUserId)) {
3390                    // Checking if there are activities in the target user that can handle the
3391                    // intent.
3392                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3393                            flags, sourceUserId);
3394                    if (resolveInfo != null) return resolveInfo;
3395                    alreadyTriedUserIds.put(targetUserId, true);
3396                }
3397            }
3398        }
3399        return null;
3400    }
3401
3402    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3403            String resolvedType, int flags, int sourceUserId) {
3404        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3405                resolvedType, flags, filter.getTargetUserId());
3406        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3407            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3408        }
3409        return null;
3410    }
3411
3412    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3413            int sourceUserId, int targetUserId) {
3414        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3415        String className;
3416        if (targetUserId == UserHandle.USER_OWNER) {
3417            className = FORWARD_INTENT_TO_USER_OWNER;
3418        } else {
3419            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3420        }
3421        ComponentName forwardingActivityComponentName = new ComponentName(
3422                mAndroidApplication.packageName, className);
3423        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3424                sourceUserId);
3425        if (targetUserId == UserHandle.USER_OWNER) {
3426            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3427            forwardingResolveInfo.noResourceId = true;
3428        }
3429        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3430        forwardingResolveInfo.priority = 0;
3431        forwardingResolveInfo.preferredOrder = 0;
3432        forwardingResolveInfo.match = 0;
3433        forwardingResolveInfo.isDefault = true;
3434        forwardingResolveInfo.filter = filter;
3435        forwardingResolveInfo.targetUserId = targetUserId;
3436        return forwardingResolveInfo;
3437    }
3438
3439    @Override
3440    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3441            Intent[] specifics, String[] specificTypes, Intent intent,
3442            String resolvedType, int flags, int userId) {
3443        if (!sUserManager.exists(userId)) return Collections.emptyList();
3444        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3445                "query intent activity options");
3446        final String resultsAction = intent.getAction();
3447
3448        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3449                | PackageManager.GET_RESOLVED_FILTER, userId);
3450
3451        if (DEBUG_INTENT_MATCHING) {
3452            Log.v(TAG, "Query " + intent + ": " + results);
3453        }
3454
3455        int specificsPos = 0;
3456        int N;
3457
3458        // todo: note that the algorithm used here is O(N^2).  This
3459        // isn't a problem in our current environment, but if we start running
3460        // into situations where we have more than 5 or 10 matches then this
3461        // should probably be changed to something smarter...
3462
3463        // First we go through and resolve each of the specific items
3464        // that were supplied, taking care of removing any corresponding
3465        // duplicate items in the generic resolve list.
3466        if (specifics != null) {
3467            for (int i=0; i<specifics.length; i++) {
3468                final Intent sintent = specifics[i];
3469                if (sintent == null) {
3470                    continue;
3471                }
3472
3473                if (DEBUG_INTENT_MATCHING) {
3474                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3475                }
3476
3477                String action = sintent.getAction();
3478                if (resultsAction != null && resultsAction.equals(action)) {
3479                    // If this action was explicitly requested, then don't
3480                    // remove things that have it.
3481                    action = null;
3482                }
3483
3484                ResolveInfo ri = null;
3485                ActivityInfo ai = null;
3486
3487                ComponentName comp = sintent.getComponent();
3488                if (comp == null) {
3489                    ri = resolveIntent(
3490                        sintent,
3491                        specificTypes != null ? specificTypes[i] : null,
3492                            flags, userId);
3493                    if (ri == null) {
3494                        continue;
3495                    }
3496                    if (ri == mResolveInfo) {
3497                        // ACK!  Must do something better with this.
3498                    }
3499                    ai = ri.activityInfo;
3500                    comp = new ComponentName(ai.applicationInfo.packageName,
3501                            ai.name);
3502                } else {
3503                    ai = getActivityInfo(comp, flags, userId);
3504                    if (ai == null) {
3505                        continue;
3506                    }
3507                }
3508
3509                // Look for any generic query activities that are duplicates
3510                // of this specific one, and remove them from the results.
3511                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3512                N = results.size();
3513                int j;
3514                for (j=specificsPos; j<N; j++) {
3515                    ResolveInfo sri = results.get(j);
3516                    if ((sri.activityInfo.name.equals(comp.getClassName())
3517                            && sri.activityInfo.applicationInfo.packageName.equals(
3518                                    comp.getPackageName()))
3519                        || (action != null && sri.filter.matchAction(action))) {
3520                        results.remove(j);
3521                        if (DEBUG_INTENT_MATCHING) Log.v(
3522                            TAG, "Removing duplicate item from " + j
3523                            + " due to specific " + specificsPos);
3524                        if (ri == null) {
3525                            ri = sri;
3526                        }
3527                        j--;
3528                        N--;
3529                    }
3530                }
3531
3532                // Add this specific item to its proper place.
3533                if (ri == null) {
3534                    ri = new ResolveInfo();
3535                    ri.activityInfo = ai;
3536                }
3537                results.add(specificsPos, ri);
3538                ri.specificIndex = i;
3539                specificsPos++;
3540            }
3541        }
3542
3543        // Now we go through the remaining generic results and remove any
3544        // duplicate actions that are found here.
3545        N = results.size();
3546        for (int i=specificsPos; i<N-1; i++) {
3547            final ResolveInfo rii = results.get(i);
3548            if (rii.filter == null) {
3549                continue;
3550            }
3551
3552            // Iterate over all of the actions of this result's intent
3553            // filter...  typically this should be just one.
3554            final Iterator<String> it = rii.filter.actionsIterator();
3555            if (it == null) {
3556                continue;
3557            }
3558            while (it.hasNext()) {
3559                final String action = it.next();
3560                if (resultsAction != null && resultsAction.equals(action)) {
3561                    // If this action was explicitly requested, then don't
3562                    // remove things that have it.
3563                    continue;
3564                }
3565                for (int j=i+1; j<N; j++) {
3566                    final ResolveInfo rij = results.get(j);
3567                    if (rij.filter != null && rij.filter.hasAction(action)) {
3568                        results.remove(j);
3569                        if (DEBUG_INTENT_MATCHING) Log.v(
3570                            TAG, "Removing duplicate item from " + j
3571                            + " due to action " + action + " at " + i);
3572                        j--;
3573                        N--;
3574                    }
3575                }
3576            }
3577
3578            // If the caller didn't request filter information, drop it now
3579            // so we don't have to marshall/unmarshall it.
3580            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3581                rii.filter = null;
3582            }
3583        }
3584
3585        // Filter out the caller activity if so requested.
3586        if (caller != null) {
3587            N = results.size();
3588            for (int i=0; i<N; i++) {
3589                ActivityInfo ainfo = results.get(i).activityInfo;
3590                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3591                        && caller.getClassName().equals(ainfo.name)) {
3592                    results.remove(i);
3593                    break;
3594                }
3595            }
3596        }
3597
3598        // If the caller didn't request filter information,
3599        // drop them now so we don't have to
3600        // marshall/unmarshall it.
3601        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3602            N = results.size();
3603            for (int i=0; i<N; i++) {
3604                results.get(i).filter = null;
3605            }
3606        }
3607
3608        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3609        return results;
3610    }
3611
3612    @Override
3613    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3614            int userId) {
3615        if (!sUserManager.exists(userId)) return Collections.emptyList();
3616        ComponentName comp = intent.getComponent();
3617        if (comp == null) {
3618            if (intent.getSelector() != null) {
3619                intent = intent.getSelector();
3620                comp = intent.getComponent();
3621            }
3622        }
3623        if (comp != null) {
3624            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3625            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3626            if (ai != null) {
3627                ResolveInfo ri = new ResolveInfo();
3628                ri.activityInfo = ai;
3629                list.add(ri);
3630            }
3631            return list;
3632        }
3633
3634        // reader
3635        synchronized (mPackages) {
3636            String pkgName = intent.getPackage();
3637            if (pkgName == null) {
3638                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3639            }
3640            final PackageParser.Package pkg = mPackages.get(pkgName);
3641            if (pkg != null) {
3642                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3643                        userId);
3644            }
3645            return null;
3646        }
3647    }
3648
3649    @Override
3650    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3651        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3652        if (!sUserManager.exists(userId)) return null;
3653        if (query != null) {
3654            if (query.size() >= 1) {
3655                // If there is more than one service with the same priority,
3656                // just arbitrarily pick the first one.
3657                return query.get(0);
3658            }
3659        }
3660        return null;
3661    }
3662
3663    @Override
3664    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3665            int userId) {
3666        if (!sUserManager.exists(userId)) return Collections.emptyList();
3667        ComponentName comp = intent.getComponent();
3668        if (comp == null) {
3669            if (intent.getSelector() != null) {
3670                intent = intent.getSelector();
3671                comp = intent.getComponent();
3672            }
3673        }
3674        if (comp != null) {
3675            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3676            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3677            if (si != null) {
3678                final ResolveInfo ri = new ResolveInfo();
3679                ri.serviceInfo = si;
3680                list.add(ri);
3681            }
3682            return list;
3683        }
3684
3685        // reader
3686        synchronized (mPackages) {
3687            String pkgName = intent.getPackage();
3688            if (pkgName == null) {
3689                return mServices.queryIntent(intent, resolvedType, flags, userId);
3690            }
3691            final PackageParser.Package pkg = mPackages.get(pkgName);
3692            if (pkg != null) {
3693                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3694                        userId);
3695            }
3696            return null;
3697        }
3698    }
3699
3700    @Override
3701    public List<ResolveInfo> queryIntentContentProviders(
3702            Intent intent, String resolvedType, int flags, int userId) {
3703        if (!sUserManager.exists(userId)) return Collections.emptyList();
3704        ComponentName comp = intent.getComponent();
3705        if (comp == null) {
3706            if (intent.getSelector() != null) {
3707                intent = intent.getSelector();
3708                comp = intent.getComponent();
3709            }
3710        }
3711        if (comp != null) {
3712            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3713            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3714            if (pi != null) {
3715                final ResolveInfo ri = new ResolveInfo();
3716                ri.providerInfo = pi;
3717                list.add(ri);
3718            }
3719            return list;
3720        }
3721
3722        // reader
3723        synchronized (mPackages) {
3724            String pkgName = intent.getPackage();
3725            if (pkgName == null) {
3726                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3727            }
3728            final PackageParser.Package pkg = mPackages.get(pkgName);
3729            if (pkg != null) {
3730                return mProviders.queryIntentForPackage(
3731                        intent, resolvedType, flags, pkg.providers, userId);
3732            }
3733            return null;
3734        }
3735    }
3736
3737    @Override
3738    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3739        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3740
3741        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "get installed packages");
3742
3743        // writer
3744        synchronized (mPackages) {
3745            ArrayList<PackageInfo> list;
3746            if (listUninstalled) {
3747                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3748                for (PackageSetting ps : mSettings.mPackages.values()) {
3749                    PackageInfo pi;
3750                    if (ps.pkg != null) {
3751                        pi = generatePackageInfo(ps.pkg, flags, userId);
3752                    } else {
3753                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3754                    }
3755                    if (pi != null) {
3756                        list.add(pi);
3757                    }
3758                }
3759            } else {
3760                list = new ArrayList<PackageInfo>(mPackages.size());
3761                for (PackageParser.Package p : mPackages.values()) {
3762                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3763                    if (pi != null) {
3764                        list.add(pi);
3765                    }
3766                }
3767            }
3768
3769            return new ParceledListSlice<PackageInfo>(list);
3770        }
3771    }
3772
3773    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3774            String[] permissions, boolean[] tmp, int flags, int userId) {
3775        int numMatch = 0;
3776        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3777        for (int i=0; i<permissions.length; i++) {
3778            if (gp.grantedPermissions.contains(permissions[i])) {
3779                tmp[i] = true;
3780                numMatch++;
3781            } else {
3782                tmp[i] = false;
3783            }
3784        }
3785        if (numMatch == 0) {
3786            return;
3787        }
3788        PackageInfo pi;
3789        if (ps.pkg != null) {
3790            pi = generatePackageInfo(ps.pkg, flags, userId);
3791        } else {
3792            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3793        }
3794        if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3795            if (numMatch == permissions.length) {
3796                pi.requestedPermissions = permissions;
3797            } else {
3798                pi.requestedPermissions = new String[numMatch];
3799                numMatch = 0;
3800                for (int i=0; i<permissions.length; i++) {
3801                    if (tmp[i]) {
3802                        pi.requestedPermissions[numMatch] = permissions[i];
3803                        numMatch++;
3804                    }
3805                }
3806            }
3807        }
3808        list.add(pi);
3809    }
3810
3811    @Override
3812    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3813            String[] permissions, int flags, int userId) {
3814        if (!sUserManager.exists(userId)) return null;
3815        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3816
3817        // writer
3818        synchronized (mPackages) {
3819            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3820            boolean[] tmpBools = new boolean[permissions.length];
3821            if (listUninstalled) {
3822                for (PackageSetting ps : mSettings.mPackages.values()) {
3823                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3824                }
3825            } else {
3826                for (PackageParser.Package pkg : mPackages.values()) {
3827                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3828                    if (ps != null) {
3829                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3830                                userId);
3831                    }
3832                }
3833            }
3834
3835            return new ParceledListSlice<PackageInfo>(list);
3836        }
3837    }
3838
3839    @Override
3840    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3841        if (!sUserManager.exists(userId)) return null;
3842        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3843
3844        // writer
3845        synchronized (mPackages) {
3846            ArrayList<ApplicationInfo> list;
3847            if (listUninstalled) {
3848                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3849                for (PackageSetting ps : mSettings.mPackages.values()) {
3850                    ApplicationInfo ai;
3851                    if (ps.pkg != null) {
3852                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3853                                ps.readUserState(userId), userId);
3854                    } else {
3855                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3856                    }
3857                    if (ai != null) {
3858                        list.add(ai);
3859                    }
3860                }
3861            } else {
3862                list = new ArrayList<ApplicationInfo>(mPackages.size());
3863                for (PackageParser.Package p : mPackages.values()) {
3864                    if (p.mExtras != null) {
3865                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3866                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3867                        if (ai != null) {
3868                            list.add(ai);
3869                        }
3870                    }
3871                }
3872            }
3873
3874            return new ParceledListSlice<ApplicationInfo>(list);
3875        }
3876    }
3877
3878    public List<ApplicationInfo> getPersistentApplications(int flags) {
3879        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3880
3881        // reader
3882        synchronized (mPackages) {
3883            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3884            final int userId = UserHandle.getCallingUserId();
3885            while (i.hasNext()) {
3886                final PackageParser.Package p = i.next();
3887                if (p.applicationInfo != null
3888                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3889                        && (!mSafeMode || isSystemApp(p))) {
3890                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3891                    if (ps != null) {
3892                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3893                                ps.readUserState(userId), userId);
3894                        if (ai != null) {
3895                            finalList.add(ai);
3896                        }
3897                    }
3898                }
3899            }
3900        }
3901
3902        return finalList;
3903    }
3904
3905    @Override
3906    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3907        if (!sUserManager.exists(userId)) return null;
3908        // reader
3909        synchronized (mPackages) {
3910            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3911            PackageSetting ps = provider != null
3912                    ? mSettings.mPackages.get(provider.owner.packageName)
3913                    : null;
3914            return ps != null
3915                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3916                    && (!mSafeMode || (provider.info.applicationInfo.flags
3917                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3918                    ? PackageParser.generateProviderInfo(provider, flags,
3919                            ps.readUserState(userId), userId)
3920                    : null;
3921        }
3922    }
3923
3924    /**
3925     * @deprecated
3926     */
3927    @Deprecated
3928    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
3929        // reader
3930        synchronized (mPackages) {
3931            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
3932                    .entrySet().iterator();
3933            final int userId = UserHandle.getCallingUserId();
3934            while (i.hasNext()) {
3935                Map.Entry<String, PackageParser.Provider> entry = i.next();
3936                PackageParser.Provider p = entry.getValue();
3937                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3938
3939                if (ps != null && p.syncable
3940                        && (!mSafeMode || (p.info.applicationInfo.flags
3941                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
3942                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
3943                            ps.readUserState(userId), userId);
3944                    if (info != null) {
3945                        outNames.add(entry.getKey());
3946                        outInfo.add(info);
3947                    }
3948                }
3949            }
3950        }
3951    }
3952
3953    @Override
3954    public List<ProviderInfo> queryContentProviders(String processName,
3955            int uid, int flags) {
3956        ArrayList<ProviderInfo> finalList = null;
3957        // reader
3958        synchronized (mPackages) {
3959            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
3960            final int userId = processName != null ?
3961                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
3962            while (i.hasNext()) {
3963                final PackageParser.Provider p = i.next();
3964                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3965                if (ps != null && p.info.authority != null
3966                        && (processName == null
3967                                || (p.info.processName.equals(processName)
3968                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
3969                        && mSettings.isEnabledLPr(p.info, flags, userId)
3970                        && (!mSafeMode
3971                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
3972                    if (finalList == null) {
3973                        finalList = new ArrayList<ProviderInfo>(3);
3974                    }
3975                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
3976                            ps.readUserState(userId), userId);
3977                    if (info != null) {
3978                        finalList.add(info);
3979                    }
3980                }
3981            }
3982        }
3983
3984        if (finalList != null) {
3985            Collections.sort(finalList, mProviderInitOrderSorter);
3986        }
3987
3988        return finalList;
3989    }
3990
3991    @Override
3992    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
3993            int flags) {
3994        // reader
3995        synchronized (mPackages) {
3996            final PackageParser.Instrumentation i = mInstrumentation.get(name);
3997            return PackageParser.generateInstrumentationInfo(i, flags);
3998        }
3999    }
4000
4001    @Override
4002    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4003            int flags) {
4004        ArrayList<InstrumentationInfo> finalList =
4005            new ArrayList<InstrumentationInfo>();
4006
4007        // reader
4008        synchronized (mPackages) {
4009            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4010            while (i.hasNext()) {
4011                final PackageParser.Instrumentation p = i.next();
4012                if (targetPackage == null
4013                        || targetPackage.equals(p.info.targetPackage)) {
4014                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4015                            flags);
4016                    if (ii != null) {
4017                        finalList.add(ii);
4018                    }
4019                }
4020            }
4021        }
4022
4023        return finalList;
4024    }
4025
4026    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4027        HashMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4028        if (overlays == null) {
4029            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4030            return;
4031        }
4032        for (PackageParser.Package opkg : overlays.values()) {
4033            // Not much to do if idmap fails: we already logged the error
4034            // and we certainly don't want to abort installation of pkg simply
4035            // because an overlay didn't fit properly. For these reasons,
4036            // ignore the return value of createIdmapForPackagePairLI.
4037            createIdmapForPackagePairLI(pkg, opkg);
4038        }
4039    }
4040
4041    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4042            PackageParser.Package opkg) {
4043        if (!opkg.mTrustedOverlay) {
4044            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4045                    opkg.baseCodePath + ": overlay not trusted");
4046            return false;
4047        }
4048        HashMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4049        if (overlaySet == null) {
4050            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4051                    opkg.baseCodePath + " but target package has no known overlays");
4052            return false;
4053        }
4054        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4055        // TODO: generate idmap for split APKs
4056        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4057            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4058                    + opkg.baseCodePath);
4059            return false;
4060        }
4061        PackageParser.Package[] overlayArray =
4062            overlaySet.values().toArray(new PackageParser.Package[0]);
4063        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4064            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4065                return p1.mOverlayPriority - p2.mOverlayPriority;
4066            }
4067        };
4068        Arrays.sort(overlayArray, cmp);
4069
4070        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4071        int i = 0;
4072        for (PackageParser.Package p : overlayArray) {
4073            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4074        }
4075        return true;
4076    }
4077
4078    private void scanDirLI(File dir, int flags, int scanMode, long currentTime) {
4079        final File[] files = dir.listFiles();
4080        if (ArrayUtils.isEmpty(files)) {
4081            Log.d(TAG, "No files in app dir " + dir);
4082            return;
4083        }
4084
4085        if (DEBUG_PACKAGE_SCANNING) {
4086            Log.d(TAG, "Scanning app dir " + dir + " scanMode=" + scanMode
4087                    + " flags=0x" + Integer.toHexString(flags));
4088        }
4089
4090        for (File file : files) {
4091            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4092                    && !PackageInstallerService.isStageFile(file);
4093            if (!isPackage) {
4094                // Ignore entries which are not apk's
4095                continue;
4096            }
4097            try {
4098                scanPackageLI(file, flags | PackageParser.PARSE_MUST_BE_APK, scanMode, currentTime, null);
4099            } catch (PackageManagerException e) {
4100                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4101
4102                // Don't mess around with apps in system partition.
4103                if ((flags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4104                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4105                    // Delete the apk
4106                    Slog.w(TAG, "Cleaning up failed install of " + file);
4107                    file.delete();
4108                }
4109            }
4110        }
4111    }
4112
4113    private static File getSettingsProblemFile() {
4114        File dataDir = Environment.getDataDirectory();
4115        File systemDir = new File(dataDir, "system");
4116        File fname = new File(systemDir, "uiderrors.txt");
4117        return fname;
4118    }
4119
4120    static void reportSettingsProblem(int priority, String msg) {
4121        try {
4122            File fname = getSettingsProblemFile();
4123            FileOutputStream out = new FileOutputStream(fname, true);
4124            PrintWriter pw = new FastPrintWriter(out);
4125            SimpleDateFormat formatter = new SimpleDateFormat();
4126            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4127            pw.println(dateString + ": " + msg);
4128            pw.close();
4129            FileUtils.setPermissions(
4130                    fname.toString(),
4131                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4132                    -1, -1);
4133        } catch (java.io.IOException e) {
4134        }
4135        Slog.println(priority, TAG, msg);
4136    }
4137
4138    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4139            PackageParser.Package pkg, File srcFile, int parseFlags)
4140            throws PackageManagerException {
4141        if (ps != null
4142                && ps.codePath.equals(srcFile)
4143                && ps.timeStamp == srcFile.lastModified()
4144                && !isCompatSignatureUpdateNeeded(pkg)) {
4145            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4146            if (ps.signatures.mSignatures != null
4147                    && ps.signatures.mSignatures.length != 0
4148                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4149                // Optimization: reuse the existing cached certificates
4150                // if the package appears to be unchanged.
4151                pkg.mSignatures = ps.signatures.mSignatures;
4152                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4153                synchronized (mPackages) {
4154                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4155                }
4156                return;
4157            }
4158
4159            Slog.w(TAG, "PackageSetting for " + ps.name
4160                    + " is missing signatures.  Collecting certs again to recover them.");
4161        } else {
4162            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4163        }
4164
4165        try {
4166            pp.collectCertificates(pkg, parseFlags);
4167            pp.collectManifestDigest(pkg);
4168        } catch (PackageParserException e) {
4169            throw new PackageManagerException(e.error, "Failed to collect certificates for "
4170                    + pkg.packageName + ": " + e.getMessage());
4171        }
4172    }
4173
4174    /*
4175     *  Scan a package and return the newly parsed package.
4176     *  Returns null in case of errors and the error code is stored in mLastScanError
4177     */
4178    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanMode,
4179            long currentTime, UserHandle user) throws PackageManagerException {
4180        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4181        parseFlags |= mDefParseFlags;
4182        PackageParser pp = new PackageParser();
4183        pp.setSeparateProcesses(mSeparateProcesses);
4184        pp.setOnlyCoreApps(mOnlyCore);
4185        pp.setDisplayMetrics(mMetrics);
4186
4187        if ((scanMode & SCAN_TRUSTED_OVERLAY) != 0) {
4188            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4189        }
4190
4191        final PackageParser.Package pkg;
4192        try {
4193            pkg = pp.parsePackage(scanFile, parseFlags);
4194        } catch (PackageParserException e) {
4195            throw new PackageManagerException(e.error,
4196                    "Failed to scan " + scanFile + ": " + e.getMessage());
4197        }
4198
4199        PackageSetting ps = null;
4200        PackageSetting updatedPkg;
4201        // reader
4202        synchronized (mPackages) {
4203            // Look to see if we already know about this package.
4204            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4205            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4206                // This package has been renamed to its original name.  Let's
4207                // use that.
4208                ps = mSettings.peekPackageLPr(oldName);
4209            }
4210            // If there was no original package, see one for the real package name.
4211            if (ps == null) {
4212                ps = mSettings.peekPackageLPr(pkg.packageName);
4213            }
4214            // Check to see if this package could be hiding/updating a system
4215            // package.  Must look for it either under the original or real
4216            // package name depending on our state.
4217            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4218            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4219        }
4220        boolean updatedPkgBetter = false;
4221        // First check if this is a system package that may involve an update
4222        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4223            if (ps != null && !ps.codePath.equals(scanFile)) {
4224                // The path has changed from what was last scanned...  check the
4225                // version of the new path against what we have stored to determine
4226                // what to do.
4227                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4228                if (pkg.mVersionCode < ps.versionCode) {
4229                    // The system package has been updated and the code path does not match
4230                    // Ignore entry. Skip it.
4231                    Log.i(TAG, "Package " + ps.name + " at " + scanFile
4232                            + " ignored: updated version " + ps.versionCode
4233                            + " better than this " + pkg.mVersionCode);
4234                    if (!updatedPkg.codePath.equals(scanFile)) {
4235                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4236                                + ps.name + " changing from " + updatedPkg.codePathString
4237                                + " to " + scanFile);
4238                        updatedPkg.codePath = scanFile;
4239                        updatedPkg.codePathString = scanFile.toString();
4240                        // This is the point at which we know that the system-disk APK
4241                        // for this package has moved during a reboot (e.g. due to an OTA),
4242                        // so we need to reevaluate it for privilege policy.
4243                        if (locationIsPrivileged(scanFile)) {
4244                            updatedPkg.pkgFlags |= ApplicationInfo.FLAG_PRIVILEGED;
4245                        }
4246                    }
4247                    updatedPkg.pkg = pkg;
4248                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4249                } else {
4250                    // The current app on the system partition is better than
4251                    // what we have updated to on the data partition; switch
4252                    // back to the system partition version.
4253                    // At this point, its safely assumed that package installation for
4254                    // apps in system partition will go through. If not there won't be a working
4255                    // version of the app
4256                    // writer
4257                    synchronized (mPackages) {
4258                        // Just remove the loaded entries from package lists.
4259                        mPackages.remove(ps.name);
4260                    }
4261                    Slog.w(TAG, "Package " + ps.name + " at " + scanFile
4262                            + "reverting from " + ps.codePathString
4263                            + ": new version " + pkg.mVersionCode
4264                            + " better than installed " + ps.versionCode);
4265
4266                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4267                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4268                            getAppDexInstructionSets(ps), isMultiArch(ps));
4269                    synchronized (mInstallLock) {
4270                        args.cleanUpResourcesLI();
4271                    }
4272                    synchronized (mPackages) {
4273                        mSettings.enableSystemPackageLPw(ps.name);
4274                    }
4275                    updatedPkgBetter = true;
4276                }
4277            }
4278        }
4279
4280        if (updatedPkg != null) {
4281            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4282            // initially
4283            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4284
4285            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4286            // flag set initially
4287            if ((updatedPkg.pkgFlags & ApplicationInfo.FLAG_PRIVILEGED) != 0) {
4288                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4289            }
4290        }
4291
4292        // Verify certificates against what was last scanned
4293        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4294
4295        /*
4296         * A new system app appeared, but we already had a non-system one of the
4297         * same name installed earlier.
4298         */
4299        boolean shouldHideSystemApp = false;
4300        if (updatedPkg == null && ps != null
4301                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4302            /*
4303             * Check to make sure the signatures match first. If they don't,
4304             * wipe the installed application and its data.
4305             */
4306            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4307                    != PackageManager.SIGNATURE_MATCH) {
4308                if (DEBUG_INSTALL) Slog.d(TAG, "Signature mismatch!");
4309                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4310                ps = null;
4311            } else {
4312                /*
4313                 * If the newly-added system app is an older version than the
4314                 * already installed version, hide it. It will be scanned later
4315                 * and re-added like an update.
4316                 */
4317                if (pkg.mVersionCode < ps.versionCode) {
4318                    shouldHideSystemApp = true;
4319                } else {
4320                    /*
4321                     * The newly found system app is a newer version that the
4322                     * one previously installed. Simply remove the
4323                     * already-installed application and replace it with our own
4324                     * while keeping the application data.
4325                     */
4326                    Slog.w(TAG, "Package " + ps.name + " at " + scanFile + "reverting from "
4327                            + ps.codePathString + ": new version " + pkg.mVersionCode
4328                            + " better than installed " + ps.versionCode);
4329                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4330                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4331                            getAppDexInstructionSets(ps), isMultiArch(ps));
4332                    synchronized (mInstallLock) {
4333                        args.cleanUpResourcesLI();
4334                    }
4335                }
4336            }
4337        }
4338
4339        // The apk is forward locked (not public) if its code and resources
4340        // are kept in different files. (except for app in either system or
4341        // vendor path).
4342        // TODO grab this value from PackageSettings
4343        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4344            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4345                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4346            }
4347        }
4348
4349        // TODO: extend to support forward-locked splits
4350        String resourcePath = null;
4351        String baseResourcePath = null;
4352        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4353            if (ps != null && ps.resourcePathString != null) {
4354                resourcePath = ps.resourcePathString;
4355                baseResourcePath = ps.resourcePathString;
4356            } else {
4357                // Should not happen at all. Just log an error.
4358                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4359            }
4360        } else {
4361            resourcePath = pkg.codePath;
4362            baseResourcePath = pkg.baseCodePath;
4363        }
4364
4365        // Set application objects path explicitly.
4366        pkg.applicationInfo.setCodePath(pkg.codePath);
4367        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4368        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4369        pkg.applicationInfo.setResourcePath(resourcePath);
4370        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4371        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4372
4373        // Note that we invoke the following method only if we are about to unpack an application
4374        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanMode
4375                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4376
4377        /*
4378         * If the system app should be overridden by a previously installed
4379         * data, hide the system app now and let the /data/app scan pick it up
4380         * again.
4381         */
4382        if (shouldHideSystemApp) {
4383            synchronized (mPackages) {
4384                /*
4385                 * We have to grant systems permissions before we hide, because
4386                 * grantPermissions will assume the package update is trying to
4387                 * expand its permissions.
4388                 */
4389                grantPermissionsLPw(pkg, true);
4390                mSettings.disableSystemPackageLPw(pkg.packageName);
4391            }
4392        }
4393
4394        return scannedPkg;
4395    }
4396
4397    private static String fixProcessName(String defProcessName,
4398            String processName, int uid) {
4399        if (processName == null) {
4400            return defProcessName;
4401        }
4402        return processName;
4403    }
4404
4405    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4406            throws PackageManagerException {
4407        if (pkgSetting.signatures.mSignatures != null) {
4408            // Already existing package. Make sure signatures match
4409            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4410                    == PackageManager.SIGNATURE_MATCH;
4411            if (!match) {
4412                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4413                        == PackageManager.SIGNATURE_MATCH;
4414            }
4415            if (!match) {
4416                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4417                        + pkg.packageName + " signatures do not match the "
4418                        + "previously installed version; ignoring!");
4419            }
4420        }
4421
4422        // Check for shared user signatures
4423        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4424            // Already existing package. Make sure signatures match
4425            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4426                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4427            if (!match) {
4428                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4429                        == PackageManager.SIGNATURE_MATCH;
4430            }
4431            if (!match) {
4432                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4433                        "Package " + pkg.packageName
4434                        + " has no signatures that match those in shared user "
4435                        + pkgSetting.sharedUser.name + "; ignoring!");
4436            }
4437        }
4438    }
4439
4440    /**
4441     * Enforces that only the system UID or root's UID can call a method exposed
4442     * via Binder.
4443     *
4444     * @param message used as message if SecurityException is thrown
4445     * @throws SecurityException if the caller is not system or root
4446     */
4447    private static final void enforceSystemOrRoot(String message) {
4448        final int uid = Binder.getCallingUid();
4449        if (uid != Process.SYSTEM_UID && uid != 0) {
4450            throw new SecurityException(message);
4451        }
4452    }
4453
4454    @Override
4455    public void performBootDexOpt() {
4456        enforceSystemOrRoot("Only the system can request dexopt be performed");
4457
4458        final HashSet<PackageParser.Package> pkgs;
4459        synchronized (mPackages) {
4460            pkgs = mDeferredDexOpt;
4461            mDeferredDexOpt = null;
4462        }
4463
4464        if (pkgs != null) {
4465            // Filter out packages that aren't recently used.
4466            //
4467            // The exception is first boot of a non-eng device, which
4468            // should do a full dexopt.
4469            boolean eng = "eng".equals(SystemProperties.get("ro.build.type"));
4470            if (eng || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4471                // TODO: add a property to control this?
4472                long dexOptLRUThresholdInMinutes;
4473                if (eng) {
4474                    dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
4475                } else {
4476                    dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
4477                }
4478                long dexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
4479
4480                int total = pkgs.size();
4481                int skipped = 0;
4482                long now = System.currentTimeMillis();
4483                for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4484                    PackageParser.Package pkg = i.next();
4485                    long then = pkg.mLastPackageUsageTimeInMills;
4486                    if (then + dexOptLRUThresholdInMills < now) {
4487                        if (DEBUG_DEXOPT) {
4488                            Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4489                                  ((then == 0) ? "never" : new Date(then)));
4490                        }
4491                        i.remove();
4492                        skipped++;
4493                    }
4494                }
4495                if (DEBUG_DEXOPT) {
4496                    Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4497                }
4498            }
4499
4500            int i = 0;
4501            for (PackageParser.Package pkg : pkgs) {
4502                i++;
4503                if (DEBUG_DEXOPT) {
4504                    Log.i(TAG, "Optimizing app " + i + " of " + pkgs.size()
4505                          + ": " + pkg.packageName);
4506                }
4507                if (!isFirstBoot()) {
4508                    try {
4509                        ActivityManagerNative.getDefault().showBootMessage(
4510                                mContext.getResources().getString(
4511                                        R.string.android_upgrading_apk,
4512                                        i, pkgs.size()), true);
4513                    } catch (RemoteException e) {
4514                    }
4515                }
4516                PackageParser.Package p = pkg;
4517                synchronized (mInstallLock) {
4518                    performDexOptLI(p, null /* instruction sets */, false /* force dex */, false /* defer */,
4519                            true /* include dependencies */);
4520                }
4521            }
4522        }
4523    }
4524
4525    @Override
4526    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4527        return performDexOpt(packageName, instructionSet, true);
4528    }
4529
4530    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4531        if (info.primaryCpuAbi == null) {
4532            return getPreferredInstructionSet();
4533        }
4534
4535        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4536    }
4537
4538    public boolean performDexOpt(String packageName, String instructionSet, boolean updateUsage) {
4539        PackageParser.Package p;
4540        final String targetInstructionSet;
4541        synchronized (mPackages) {
4542            p = mPackages.get(packageName);
4543            if (p == null) {
4544                return false;
4545            }
4546            if (updateUsage) {
4547                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4548            }
4549            mPackageUsage.write(false);
4550
4551            targetInstructionSet = instructionSet != null ? instructionSet :
4552                    getPrimaryInstructionSet(p.applicationInfo);
4553            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4554                return false;
4555            }
4556        }
4557
4558        synchronized (mInstallLock) {
4559            final String[] instructionSets = new String[] { targetInstructionSet };
4560            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4561                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4562        }
4563    }
4564
4565    public HashSet<String> getPackagesThatNeedDexOpt() {
4566        HashSet<String> pkgs = null;
4567        synchronized (mPackages) {
4568            for (PackageParser.Package p : mPackages.values()) {
4569                if (DEBUG_DEXOPT) {
4570                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4571                }
4572                if (!p.mDexOptPerformed.isEmpty()) {
4573                    continue;
4574                }
4575                if (pkgs == null) {
4576                    pkgs = new HashSet<String>();
4577                }
4578                pkgs.add(p.packageName);
4579            }
4580        }
4581        return pkgs;
4582    }
4583
4584    public void shutdown() {
4585        mPackageUsage.write(true);
4586    }
4587
4588    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4589             boolean forceDex, boolean defer, HashSet<String> done) {
4590        for (int i=0; i<libs.size(); i++) {
4591            PackageParser.Package libPkg;
4592            String libName;
4593            synchronized (mPackages) {
4594                libName = libs.get(i);
4595                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4596                if (lib != null && lib.apk != null) {
4597                    libPkg = mPackages.get(lib.apk);
4598                } else {
4599                    libPkg = null;
4600                }
4601            }
4602            if (libPkg != null && !done.contains(libName)) {
4603                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4604            }
4605        }
4606    }
4607
4608    static final int DEX_OPT_SKIPPED = 0;
4609    static final int DEX_OPT_PERFORMED = 1;
4610    static final int DEX_OPT_DEFERRED = 2;
4611    static final int DEX_OPT_FAILED = -1;
4612
4613    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4614            boolean forceDex, boolean defer, HashSet<String> done) {
4615        final String[] instructionSets = targetInstructionSets != null ?
4616                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4617
4618        if (done != null) {
4619            done.add(pkg.packageName);
4620            if (pkg.usesLibraries != null) {
4621                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4622            }
4623            if (pkg.usesOptionalLibraries != null) {
4624                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4625            }
4626        }
4627
4628        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4629            return DEX_OPT_SKIPPED;
4630        }
4631
4632        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4633        boolean performedDexOpt = false;
4634        // There are three basic cases here:
4635        // 1.) we need to dexopt, either because we are forced or it is needed
4636        // 2.) we are defering a needed dexopt
4637        // 3.) we are skipping an unneeded dexopt
4638        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4639        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4640            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4641                continue;
4642            }
4643
4644            for (String path : paths) {
4645                try {
4646                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4647                    // patckage or the one we find does not match the image checksum (i.e. it was
4648                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4649                    // odex file and it matches the checksum of the image but not its base address,
4650                    // meaning we need to move it.
4651                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4652                            pkg.packageName, dexCodeInstructionSet, defer);
4653                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4654                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4655                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet);
4656                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4657                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4658                                pkg.packageName, dexCodeInstructionSet);
4659
4660                        if (ret < 0) {
4661                            // Don't bother running dexopt again if we failed, it will probably
4662                            // just result in an error again. Also, don't bother dexopting for other
4663                            // paths & ISAs.
4664                            return DEX_OPT_FAILED;
4665                        }
4666
4667                        performedDexOpt = true;
4668                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4669                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4670                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4671                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4672                                pkg.packageName, dexCodeInstructionSet);
4673
4674                        if (ret < 0) {
4675                            // Don't bother running patchoat again if we failed, it will probably
4676                            // just result in an error again. Also, don't bother dexopting for other
4677                            // paths & ISAs.
4678                            return DEX_OPT_FAILED;
4679                        }
4680
4681                        performedDexOpt = true;
4682                    }
4683
4684                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4685                    // paths and instruction sets. We'll deal with them all together when we process
4686                    // our list of deferred dexopts.
4687                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4688                        if (mDeferredDexOpt == null) {
4689                            mDeferredDexOpt = new HashSet<PackageParser.Package>();
4690                        }
4691                        mDeferredDexOpt.add(pkg);
4692                        return DEX_OPT_DEFERRED;
4693                    }
4694                } catch (FileNotFoundException e) {
4695                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4696                    return DEX_OPT_FAILED;
4697                } catch (IOException e) {
4698                    Slog.w(TAG, "IOException reading apk: " + path, e);
4699                    return DEX_OPT_FAILED;
4700                } catch (StaleDexCacheError e) {
4701                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4702                    return DEX_OPT_FAILED;
4703                } catch (Exception e) {
4704                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4705                    return DEX_OPT_FAILED;
4706                }
4707            }
4708
4709            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4710            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4711            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4712            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4713            // it.
4714            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4715        }
4716
4717        // If we've gotten here, we're sure that no error occurred and that we haven't
4718        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4719        // we've skipped all of them because they are up to date. In both cases this
4720        // package doesn't need dexopt any longer.
4721        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4722    }
4723
4724    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4725        if (info.primaryCpuAbi != null) {
4726            if (info.secondaryCpuAbi != null) {
4727                return new String[] {
4728                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4729                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4730            } else {
4731                return new String[] {
4732                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4733            }
4734        }
4735
4736        return new String[] { getPreferredInstructionSet() };
4737    }
4738
4739    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4740        if (ps.primaryCpuAbiString != null) {
4741            if (ps.secondaryCpuAbiString != null) {
4742                return new String[] {
4743                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4744                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4745            } else {
4746                return new String[] {
4747                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
4748            }
4749        }
4750
4751        return new String[] { getPreferredInstructionSet() };
4752    }
4753
4754    private static String getPreferredInstructionSet() {
4755        if (sPreferredInstructionSet == null) {
4756            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
4757        }
4758
4759        return sPreferredInstructionSet;
4760    }
4761
4762    private static List<String> getAllInstructionSets() {
4763        final String[] allAbis = Build.SUPPORTED_ABIS;
4764        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
4765
4766        for (String abi : allAbis) {
4767            final String instructionSet = VMRuntime.getInstructionSet(abi);
4768            if (!allInstructionSets.contains(instructionSet)) {
4769                allInstructionSets.add(instructionSet);
4770            }
4771        }
4772
4773        return allInstructionSets;
4774    }
4775
4776    /**
4777     * Returns the instruction set that should be used to compile dex code. In the presence of
4778     * a native bridge this might be different than the one shared libraries use.
4779     */
4780    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
4781        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
4782        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
4783    }
4784
4785    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
4786        HashSet<String> dexCodeInstructionSets = new HashSet<String>(instructionSets.length);
4787        for (String instructionSet : instructionSets) {
4788            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
4789        }
4790        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
4791    }
4792
4793    @Override
4794    public void forceDexOpt(String packageName) {
4795        enforceSystemOrRoot("forceDexOpt");
4796
4797        PackageParser.Package pkg;
4798        synchronized (mPackages) {
4799            pkg = mPackages.get(packageName);
4800            if (pkg == null) {
4801                throw new IllegalArgumentException("Missing package: " + packageName);
4802            }
4803        }
4804
4805        synchronized (mInstallLock) {
4806            final String[] instructionSets = new String[] {
4807                    getPrimaryInstructionSet(pkg.applicationInfo) };
4808            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
4809            if (res != DEX_OPT_PERFORMED) {
4810                throw new IllegalStateException("Failed to dexopt: " + res);
4811            }
4812        }
4813    }
4814
4815    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
4816                                boolean forceDex, boolean defer, boolean inclDependencies) {
4817        HashSet<String> done;
4818        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
4819            done = new HashSet<String>();
4820            done.add(pkg.packageName);
4821        } else {
4822            done = null;
4823        }
4824        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
4825    }
4826
4827    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4828        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4829            Slog.w(TAG, "Unable to update from " + oldPkg.name
4830                    + " to " + newPkg.packageName
4831                    + ": old package not in system partition");
4832            return false;
4833        } else if (mPackages.get(oldPkg.name) != null) {
4834            Slog.w(TAG, "Unable to update from " + oldPkg.name
4835                    + " to " + newPkg.packageName
4836                    + ": old package still exists");
4837            return false;
4838        }
4839        return true;
4840    }
4841
4842    File getDataPathForUser(int userId) {
4843        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
4844    }
4845
4846    private File getDataPathForPackage(String packageName, int userId) {
4847        /*
4848         * Until we fully support multiple users, return the directory we
4849         * previously would have. The PackageManagerTests will need to be
4850         * revised when this is changed back..
4851         */
4852        if (userId == 0) {
4853            return new File(mAppDataDir, packageName);
4854        } else {
4855            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4856                + File.separator + packageName);
4857        }
4858    }
4859
4860    private int createDataDirsLI(String packageName, int uid, String seinfo) {
4861        int[] users = sUserManager.getUserIds();
4862        int res = mInstaller.install(packageName, uid, uid, seinfo);
4863        if (res < 0) {
4864            return res;
4865        }
4866        for (int user : users) {
4867            if (user != 0) {
4868                res = mInstaller.createUserData(packageName,
4869                        UserHandle.getUid(user, uid), user, seinfo);
4870                if (res < 0) {
4871                    return res;
4872                }
4873            }
4874        }
4875        return res;
4876    }
4877
4878    private int removeDataDirsLI(String packageName) {
4879        int[] users = sUserManager.getUserIds();
4880        int res = 0;
4881        for (int user : users) {
4882            int resInner = mInstaller.remove(packageName, user);
4883            if (resInner < 0) {
4884                res = resInner;
4885            }
4886        }
4887
4888        return res;
4889    }
4890
4891    private int deleteCodeCacheDirsLI(String packageName) {
4892        int[] users = sUserManager.getUserIds();
4893        int res = 0;
4894        for (int user : users) {
4895            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
4896            if (resInner < 0) {
4897                res = resInner;
4898            }
4899        }
4900        return res;
4901    }
4902
4903    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
4904            PackageParser.Package changingLib) {
4905        if (file.path != null) {
4906            usesLibraryFiles.add(file.path);
4907            return;
4908        }
4909        PackageParser.Package p = mPackages.get(file.apk);
4910        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
4911            // If we are doing this while in the middle of updating a library apk,
4912            // then we need to make sure to use that new apk for determining the
4913            // dependencies here.  (We haven't yet finished committing the new apk
4914            // to the package manager state.)
4915            if (p == null || p.packageName.equals(changingLib.packageName)) {
4916                p = changingLib;
4917            }
4918        }
4919        if (p != null) {
4920            usesLibraryFiles.addAll(p.getAllCodePaths());
4921        }
4922    }
4923
4924    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
4925            PackageParser.Package changingLib) throws PackageManagerException {
4926        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
4927            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
4928            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
4929            for (int i=0; i<N; i++) {
4930                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
4931                if (file == null) {
4932                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
4933                            "Package " + pkg.packageName + " requires unavailable shared library "
4934                            + pkg.usesLibraries.get(i) + "; failing!");
4935                }
4936                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4937            }
4938            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
4939            for (int i=0; i<N; i++) {
4940                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
4941                if (file == null) {
4942                    Slog.w(TAG, "Package " + pkg.packageName
4943                            + " desires unavailable shared library "
4944                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
4945                } else {
4946                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4947                }
4948            }
4949            N = usesLibraryFiles.size();
4950            if (N > 0) {
4951                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
4952            } else {
4953                pkg.usesLibraryFiles = null;
4954            }
4955        }
4956    }
4957
4958    private static boolean hasString(List<String> list, List<String> which) {
4959        if (list == null) {
4960            return false;
4961        }
4962        for (int i=list.size()-1; i>=0; i--) {
4963            for (int j=which.size()-1; j>=0; j--) {
4964                if (which.get(j).equals(list.get(i))) {
4965                    return true;
4966                }
4967            }
4968        }
4969        return false;
4970    }
4971
4972    private void updateAllSharedLibrariesLPw() {
4973        for (PackageParser.Package pkg : mPackages.values()) {
4974            try {
4975                updateSharedLibrariesLPw(pkg, null);
4976            } catch (PackageManagerException e) {
4977                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
4978            }
4979        }
4980    }
4981
4982    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
4983            PackageParser.Package changingPkg) {
4984        ArrayList<PackageParser.Package> res = null;
4985        for (PackageParser.Package pkg : mPackages.values()) {
4986            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
4987                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
4988                if (res == null) {
4989                    res = new ArrayList<PackageParser.Package>();
4990                }
4991                res.add(pkg);
4992                try {
4993                    updateSharedLibrariesLPw(pkg, changingPkg);
4994                } catch (PackageManagerException e) {
4995                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
4996                }
4997            }
4998        }
4999        return res;
5000    }
5001
5002    /**
5003     * Derive the value of the {@code cpuAbiOverride} based on the provided
5004     * value and an optional stored value from the package settings.
5005     */
5006    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5007        String cpuAbiOverride = null;
5008
5009        if (CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5010            cpuAbiOverride = null;
5011        } else if (abiOverride != null) {
5012            cpuAbiOverride = abiOverride;
5013        } else if (settings != null) {
5014            cpuAbiOverride = settings.cpuAbiOverrideString;
5015        }
5016
5017        return cpuAbiOverride;
5018    }
5019
5020    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5021            int scanMode, long currentTime, UserHandle user)
5022            throws PackageManagerException {
5023        final File scanFile = new File(pkg.codePath);
5024        if (pkg.applicationInfo.getCodePath() == null ||
5025                pkg.applicationInfo.getResourcePath() == null) {
5026            // Bail out. The resource and code paths haven't been set.
5027            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5028                    "Code and resource paths haven't been set correctly");
5029        }
5030
5031        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5032            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5033        }
5034
5035        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5036            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_PRIVILEGED;
5037        }
5038
5039        if (mCustomResolverComponentName != null &&
5040                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5041            setUpCustomResolverActivity(pkg);
5042        }
5043
5044        if (pkg.packageName.equals("android")) {
5045            synchronized (mPackages) {
5046                if (mAndroidApplication != null) {
5047                    Slog.w(TAG, "*************************************************");
5048                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5049                    Slog.w(TAG, " file=" + scanFile);
5050                    Slog.w(TAG, "*************************************************");
5051                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5052                            "Core android package being redefined.  Skipping.");
5053                }
5054
5055                // Set up information for our fall-back user intent resolution activity.
5056                mPlatformPackage = pkg;
5057                pkg.mVersionCode = mSdkVersion;
5058                mAndroidApplication = pkg.applicationInfo;
5059
5060                if (!mResolverReplaced) {
5061                    mResolveActivity.applicationInfo = mAndroidApplication;
5062                    mResolveActivity.name = ResolverActivity.class.getName();
5063                    mResolveActivity.packageName = mAndroidApplication.packageName;
5064                    mResolveActivity.processName = "system:ui";
5065                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5066                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5067                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5068                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5069                    mResolveActivity.exported = true;
5070                    mResolveActivity.enabled = true;
5071                    mResolveInfo.activityInfo = mResolveActivity;
5072                    mResolveInfo.priority = 0;
5073                    mResolveInfo.preferredOrder = 0;
5074                    mResolveInfo.match = 0;
5075                    mResolveComponentName = new ComponentName(
5076                            mAndroidApplication.packageName, mResolveActivity.name);
5077                }
5078            }
5079        }
5080
5081        if (DEBUG_PACKAGE_SCANNING) {
5082            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5083                Log.d(TAG, "Scanning package " + pkg.packageName);
5084        }
5085
5086        if (mPackages.containsKey(pkg.packageName)
5087                || mSharedLibraries.containsKey(pkg.packageName)) {
5088            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5089                    "Application package " + pkg.packageName
5090                    + " already installed.  Skipping duplicate.");
5091        }
5092
5093        // Initialize package source and resource directories
5094        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5095        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5096
5097        SharedUserSetting suid = null;
5098        PackageSetting pkgSetting = null;
5099
5100        if (!isSystemApp(pkg)) {
5101            // Only system apps can use these features.
5102            pkg.mOriginalPackages = null;
5103            pkg.mRealPackage = null;
5104            pkg.mAdoptPermissions = null;
5105        }
5106
5107        // writer
5108        synchronized (mPackages) {
5109            if (pkg.mSharedUserId != null) {
5110                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, true);
5111                if (suid == null) {
5112                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5113                            "Creating application package " + pkg.packageName
5114                            + " for shared user failed");
5115                }
5116                if (DEBUG_PACKAGE_SCANNING) {
5117                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5118                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5119                                + "): packages=" + suid.packages);
5120                }
5121            }
5122
5123            // Check if we are renaming from an original package name.
5124            PackageSetting origPackage = null;
5125            String realName = null;
5126            if (pkg.mOriginalPackages != null) {
5127                // This package may need to be renamed to a previously
5128                // installed name.  Let's check on that...
5129                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5130                if (pkg.mOriginalPackages.contains(renamed)) {
5131                    // This package had originally been installed as the
5132                    // original name, and we have already taken care of
5133                    // transitioning to the new one.  Just update the new
5134                    // one to continue using the old name.
5135                    realName = pkg.mRealPackage;
5136                    if (!pkg.packageName.equals(renamed)) {
5137                        // Callers into this function may have already taken
5138                        // care of renaming the package; only do it here if
5139                        // it is not already done.
5140                        pkg.setPackageName(renamed);
5141                    }
5142
5143                } else {
5144                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5145                        if ((origPackage = mSettings.peekPackageLPr(
5146                                pkg.mOriginalPackages.get(i))) != null) {
5147                            // We do have the package already installed under its
5148                            // original name...  should we use it?
5149                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5150                                // New package is not compatible with original.
5151                                origPackage = null;
5152                                continue;
5153                            } else if (origPackage.sharedUser != null) {
5154                                // Make sure uid is compatible between packages.
5155                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5156                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5157                                            + " to " + pkg.packageName + ": old uid "
5158                                            + origPackage.sharedUser.name
5159                                            + " differs from " + pkg.mSharedUserId);
5160                                    origPackage = null;
5161                                    continue;
5162                                }
5163                            } else {
5164                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5165                                        + pkg.packageName + " to old name " + origPackage.name);
5166                            }
5167                            break;
5168                        }
5169                    }
5170                }
5171            }
5172
5173            if (mTransferedPackages.contains(pkg.packageName)) {
5174                Slog.w(TAG, "Package " + pkg.packageName
5175                        + " was transferred to another, but its .apk remains");
5176            }
5177
5178            // Just create the setting, don't add it yet. For already existing packages
5179            // the PkgSetting exists already and doesn't have to be created.
5180            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5181                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5182                    pkg.applicationInfo.primaryCpuAbi,
5183                    pkg.applicationInfo.secondaryCpuAbi,
5184                    pkg.applicationInfo.flags, user, false);
5185            if (pkgSetting == null) {
5186                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5187                        "Creating application package " + pkg.packageName + " failed");
5188            }
5189
5190            if (pkgSetting.origPackage != null) {
5191                // If we are first transitioning from an original package,
5192                // fix up the new package's name now.  We need to do this after
5193                // looking up the package under its new name, so getPackageLP
5194                // can take care of fiddling things correctly.
5195                pkg.setPackageName(origPackage.name);
5196
5197                // File a report about this.
5198                String msg = "New package " + pkgSetting.realName
5199                        + " renamed to replace old package " + pkgSetting.name;
5200                reportSettingsProblem(Log.WARN, msg);
5201
5202                // Make a note of it.
5203                mTransferedPackages.add(origPackage.name);
5204
5205                // No longer need to retain this.
5206                pkgSetting.origPackage = null;
5207            }
5208
5209            if (realName != null) {
5210                // Make a note of it.
5211                mTransferedPackages.add(pkg.packageName);
5212            }
5213
5214            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5215                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5216            }
5217
5218            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5219                // Check all shared libraries and map to their actual file path.
5220                // We only do this here for apps not on a system dir, because those
5221                // are the only ones that can fail an install due to this.  We
5222                // will take care of the system apps by updating all of their
5223                // library paths after the scan is done.
5224                updateSharedLibrariesLPw(pkg, null);
5225            }
5226
5227            if (mFoundPolicyFile) {
5228                SELinuxMMAC.assignSeinfoValue(pkg);
5229            }
5230
5231            pkg.applicationInfo.uid = pkgSetting.appId;
5232            pkg.mExtras = pkgSetting;
5233            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5234                try {
5235                    verifySignaturesLP(pkgSetting, pkg);
5236                } catch (PackageManagerException e) {
5237                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5238                        throw e;
5239                    }
5240                    // The signature has changed, but this package is in the system
5241                    // image...  let's recover!
5242                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5243                    // However...  if this package is part of a shared user, but it
5244                    // doesn't match the signature of the shared user, let's fail.
5245                    // What this means is that you can't change the signatures
5246                    // associated with an overall shared user, which doesn't seem all
5247                    // that unreasonable.
5248                    if (pkgSetting.sharedUser != null) {
5249                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5250                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5251                            throw new PackageManagerException(
5252                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5253                                            "Signature mismatch for shared user : "
5254                                            + pkgSetting.sharedUser);
5255                        }
5256                    }
5257                    // File a report about this.
5258                    String msg = "System package " + pkg.packageName
5259                        + " signature changed; retaining data.";
5260                    reportSettingsProblem(Log.WARN, msg);
5261                }
5262            } else {
5263                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5264                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5265                            + pkg.packageName + " upgrade keys do not match the "
5266                            + "previously installed version");
5267                } else {
5268                    // signatures may have changed as result of upgrade
5269                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5270                }
5271            }
5272            // Verify that this new package doesn't have any content providers
5273            // that conflict with existing packages.  Only do this if the
5274            // package isn't already installed, since we don't want to break
5275            // things that are installed.
5276            if ((scanMode&SCAN_NEW_INSTALL) != 0) {
5277                final int N = pkg.providers.size();
5278                int i;
5279                for (i=0; i<N; i++) {
5280                    PackageParser.Provider p = pkg.providers.get(i);
5281                    if (p.info.authority != null) {
5282                        String names[] = p.info.authority.split(";");
5283                        for (int j = 0; j < names.length; j++) {
5284                            if (mProvidersByAuthority.containsKey(names[j])) {
5285                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5286                                final String otherPackageName =
5287                                        ((other != null && other.getComponentName() != null) ?
5288                                                other.getComponentName().getPackageName() : "?");
5289                                throw new PackageManagerException(
5290                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5291                                                "Can't install because provider name " + names[j]
5292                                                + " (in package " + pkg.applicationInfo.packageName
5293                                                + ") is already used by " + otherPackageName);
5294                            }
5295                        }
5296                    }
5297                }
5298            }
5299
5300            if (pkg.mAdoptPermissions != null) {
5301                // This package wants to adopt ownership of permissions from
5302                // another package.
5303                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5304                    final String origName = pkg.mAdoptPermissions.get(i);
5305                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5306                    if (orig != null) {
5307                        if (verifyPackageUpdateLPr(orig, pkg)) {
5308                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5309                                    + pkg.packageName);
5310                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5311                        }
5312                    }
5313                }
5314            }
5315        }
5316
5317        final String pkgName = pkg.packageName;
5318
5319        final long scanFileTime = scanFile.lastModified();
5320        final boolean forceDex = (scanMode&SCAN_FORCE_DEX) != 0;
5321        pkg.applicationInfo.processName = fixProcessName(
5322                pkg.applicationInfo.packageName,
5323                pkg.applicationInfo.processName,
5324                pkg.applicationInfo.uid);
5325
5326        File dataPath;
5327        if (mPlatformPackage == pkg) {
5328            // The system package is special.
5329            dataPath = new File (Environment.getDataDirectory(), "system");
5330            pkg.applicationInfo.dataDir = dataPath.getPath();
5331
5332        } else {
5333            // This is a normal package, need to make its data directory.
5334            dataPath = getDataPathForPackage(pkg.packageName, 0);
5335
5336            boolean uidError = false;
5337
5338            if (dataPath.exists()) {
5339                int currentUid = 0;
5340                try {
5341                    StructStat stat = Os.stat(dataPath.getPath());
5342                    currentUid = stat.st_uid;
5343                } catch (ErrnoException e) {
5344                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5345                }
5346
5347                // If we have mismatched owners for the data path, we have a problem.
5348                if (currentUid != pkg.applicationInfo.uid) {
5349                    boolean recovered = false;
5350                    if (currentUid == 0) {
5351                        // The directory somehow became owned by root.  Wow.
5352                        // This is probably because the system was stopped while
5353                        // installd was in the middle of messing with its libs
5354                        // directory.  Ask installd to fix that.
5355                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5356                                pkg.applicationInfo.uid);
5357                        if (ret >= 0) {
5358                            recovered = true;
5359                            String msg = "Package " + pkg.packageName
5360                                    + " unexpectedly changed to uid 0; recovered to " +
5361                                    + pkg.applicationInfo.uid;
5362                            reportSettingsProblem(Log.WARN, msg);
5363                        }
5364                    }
5365                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5366                            || (scanMode&SCAN_BOOTING) != 0)) {
5367                        // If this is a system app, we can at least delete its
5368                        // current data so the application will still work.
5369                        int ret = removeDataDirsLI(pkgName);
5370                        if (ret >= 0) {
5371                            // TODO: Kill the processes first
5372                            // Old data gone!
5373                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5374                                    ? "System package " : "Third party package ";
5375                            String msg = prefix + pkg.packageName
5376                                    + " has changed from uid: "
5377                                    + currentUid + " to "
5378                                    + pkg.applicationInfo.uid + "; old data erased";
5379                            reportSettingsProblem(Log.WARN, msg);
5380                            recovered = true;
5381
5382                            // And now re-install the app.
5383                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5384                                                   pkg.applicationInfo.seinfo);
5385                            if (ret == -1) {
5386                                // Ack should not happen!
5387                                msg = prefix + pkg.packageName
5388                                        + " could not have data directory re-created after delete.";
5389                                reportSettingsProblem(Log.WARN, msg);
5390                                throw new PackageManagerException(
5391                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5392                            }
5393                        }
5394                        if (!recovered) {
5395                            mHasSystemUidErrors = true;
5396                        }
5397                    } else if (!recovered) {
5398                        // If we allow this install to proceed, we will be broken.
5399                        // Abort, abort!
5400                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5401                                "scanPackageLI");
5402                    }
5403                    if (!recovered) {
5404                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5405                            + pkg.applicationInfo.uid + "/fs_"
5406                            + currentUid;
5407                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5408                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5409                        String msg = "Package " + pkg.packageName
5410                                + " has mismatched uid: "
5411                                + currentUid + " on disk, "
5412                                + pkg.applicationInfo.uid + " in settings";
5413                        // writer
5414                        synchronized (mPackages) {
5415                            mSettings.mReadMessages.append(msg);
5416                            mSettings.mReadMessages.append('\n');
5417                            uidError = true;
5418                            if (!pkgSetting.uidError) {
5419                                reportSettingsProblem(Log.ERROR, msg);
5420                            }
5421                        }
5422                    }
5423                }
5424                pkg.applicationInfo.dataDir = dataPath.getPath();
5425                if (mShouldRestoreconData) {
5426                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5427                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5428                                pkg.applicationInfo.uid);
5429                }
5430            } else {
5431                if (DEBUG_PACKAGE_SCANNING) {
5432                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5433                        Log.v(TAG, "Want this data dir: " + dataPath);
5434                }
5435                //invoke installer to do the actual installation
5436                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5437                                           pkg.applicationInfo.seinfo);
5438                if (ret < 0) {
5439                    // Error from installer
5440                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5441                            "Unable to create data dirs [errorCode=" + ret + "]");
5442                }
5443
5444                if (dataPath.exists()) {
5445                    pkg.applicationInfo.dataDir = dataPath.getPath();
5446                } else {
5447                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5448                    pkg.applicationInfo.dataDir = null;
5449                }
5450            }
5451
5452            pkgSetting.uidError = uidError;
5453        }
5454
5455        final String path = scanFile.getPath();
5456        final String codePath = pkg.applicationInfo.getCodePath();
5457        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5458        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5459            setBundledAppAbisAndRoots(pkg, pkgSetting);
5460
5461            // If we haven't found any native libraries for the app, check if it has
5462            // renderscript code. We'll need to force the app to 32 bit if it has
5463            // renderscript bitcode.
5464            if (pkg.applicationInfo.primaryCpuAbi == null
5465                    && pkg.applicationInfo.secondaryCpuAbi == null
5466                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5467                NativeLibraryHelper.Handle handle = null;
5468                try {
5469                    handle = NativeLibraryHelper.Handle.create(scanFile);
5470                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5471                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5472                    }
5473                } catch (IOException ioe) {
5474                    Slog.w(TAG, "Error scanning system app : " + ioe);
5475                } finally {
5476                    IoUtils.closeQuietly(handle);
5477                }
5478            }
5479
5480            setNativeLibraryPaths(pkg);
5481        } else {
5482            // TODO: We can probably be smarter about this stuff. For installed apps,
5483            // we can calculate this information at install time once and for all. For
5484            // system apps, we can probably assume that this information doesn't change
5485            // after the first boot scan. As things stand, we do lots of unnecessary work.
5486
5487            // Give ourselves some initial paths; we'll come back for another
5488            // pass once we've determined ABI below.
5489            setNativeLibraryPaths(pkg);
5490
5491            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5492            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5493            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5494
5495            NativeLibraryHelper.Handle handle = null;
5496            try {
5497                handle = NativeLibraryHelper.Handle.create(scanFile);
5498                // TODO(multiArch): This can be null for apps that didn't go through the
5499                // usual installation process. We can calculate it again, like we
5500                // do during install time.
5501                //
5502                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5503                // unnecessary.
5504                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5505
5506                // Null out the abis so that they can be recalculated.
5507                pkg.applicationInfo.primaryCpuAbi = null;
5508                pkg.applicationInfo.secondaryCpuAbi = null;
5509                if (isMultiArch(pkg.applicationInfo)) {
5510                    // Warn if we've set an abiOverride for multi-lib packages..
5511                    // By definition, we need to copy both 32 and 64 bit libraries for
5512                    // such packages.
5513                    if (pkg.cpuAbiOverride != null && !CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5514                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5515                    }
5516
5517                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5518                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5519                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5520                        if (isAsec) {
5521                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5522                        } else {
5523                            abi32 = copyNativeLibrariesForInternalApp(handle,
5524                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS, useIsaSpecificSubdirs);
5525                        }
5526                    }
5527
5528                    maybeThrowExceptionForMultiArchCopy(
5529                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5530
5531                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5532                        if (isAsec) {
5533                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5534                        } else {
5535                            abi64 = copyNativeLibrariesForInternalApp(handle,
5536                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS, useIsaSpecificSubdirs);
5537                        }
5538                    }
5539
5540                    maybeThrowExceptionForMultiArchCopy(
5541                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5542
5543                    if (abi64 >= 0) {
5544                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5545                    }
5546
5547                    if (abi32 >= 0) {
5548                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5549                        if (abi64 >= 0) {
5550                            pkg.applicationInfo.secondaryCpuAbi = abi;
5551                        } else {
5552                            pkg.applicationInfo.primaryCpuAbi = abi;
5553                        }
5554                    }
5555                } else {
5556                    String[] abiList = (cpuAbiOverride != null) ?
5557                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5558
5559                    // Enable gross and lame hacks for apps that are built with old
5560                    // SDK tools. We must scan their APKs for renderscript bitcode and
5561                    // not launch them if it's present. Don't bother checking on devices
5562                    // that don't have 64 bit support.
5563                    boolean needsRenderScriptOverride = false;
5564                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5565                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5566                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5567                        needsRenderScriptOverride = true;
5568                    }
5569
5570                    final int copyRet;
5571                    if (isAsec) {
5572                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5573                    } else {
5574                        copyRet = copyNativeLibrariesForInternalApp(handle, nativeLibraryRoot, abiList,
5575                                useIsaSpecificSubdirs);
5576                    }
5577
5578                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5579                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5580                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5581                    }
5582
5583                    if (copyRet >= 0) {
5584                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5585                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5586                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5587                    } else if (needsRenderScriptOverride) {
5588                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5589                    }
5590                }
5591            } catch (IOException ioe) {
5592                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5593            } finally {
5594                IoUtils.closeQuietly(handle);
5595            }
5596
5597            // Now that we've calculated the ABIs and determined if it's an internal app,
5598            // we will go ahead and populate the nativeLibraryPath.
5599            setNativeLibraryPaths(pkg);
5600
5601            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5602            final int[] userIds = sUserManager.getUserIds();
5603            synchronized (mInstallLock) {
5604                // Create a native library symlink only if we have native libraries
5605                // and if the native libraries are 32 bit libraries. We do not provide
5606                // this symlink for 64 bit libraries.
5607                if (pkg.applicationInfo.primaryCpuAbi != null &&
5608                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5609                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5610                    for (int userId : userIds) {
5611                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5612                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5613                                    "Failed linking native library dir (user=" + userId + ")");
5614                        }
5615                    }
5616                }
5617            }
5618        }
5619
5620        // This is a special case for the "system" package, where the ABI is
5621        // dictated by the zygote configuration (and init.rc). We should keep track
5622        // of this ABI so that we can deal with "normal" applications that run under
5623        // the same UID correctly.
5624        if (mPlatformPackage == pkg) {
5625            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5626                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5627        }
5628
5629        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5630        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5631        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5632        // Copy the derived override back to the parsed package, so that we can
5633        // update the package settings accordingly.
5634        pkg.cpuAbiOverride = cpuAbiOverride;
5635
5636        Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5637                + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5638                + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5639
5640        // Push the derived path down into PackageSettings so we know what to
5641        // clean up at uninstall time.
5642        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5643
5644        if (DEBUG_ABI_SELECTION) {
5645            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5646                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5647                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5648        }
5649
5650        if ((scanMode&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5651            // We don't do this here during boot because we can do it all
5652            // at once after scanning all existing packages.
5653            //
5654            // We also do this *before* we perform dexopt on this package, so that
5655            // we can avoid redundant dexopts, and also to make sure we've got the
5656            // code and package path correct.
5657            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5658                    pkg, forceDex, (scanMode & SCAN_DEFER_DEX) != 0);
5659        }
5660
5661        if ((scanMode&SCAN_NO_DEX) == 0) {
5662            if (performDexOptLI(pkg, null /* instruction sets */, forceDex, (scanMode&SCAN_DEFER_DEX) != 0, false)
5663                    == DEX_OPT_FAILED) {
5664                if ((scanMode & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5665                    removeDataDirsLI(pkg.packageName);
5666                }
5667
5668                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5669            }
5670        }
5671
5672        if (mFactoryTest && pkg.requestedPermissions.contains(
5673                android.Manifest.permission.FACTORY_TEST)) {
5674            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5675        }
5676
5677        ArrayList<PackageParser.Package> clientLibPkgs = null;
5678
5679        // writer
5680        synchronized (mPackages) {
5681            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5682                // Only system apps can add new shared libraries.
5683                if (pkg.libraryNames != null) {
5684                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5685                        String name = pkg.libraryNames.get(i);
5686                        boolean allowed = false;
5687                        if (isUpdatedSystemApp(pkg)) {
5688                            // New library entries can only be added through the
5689                            // system image.  This is important to get rid of a lot
5690                            // of nasty edge cases: for example if we allowed a non-
5691                            // system update of the app to add a library, then uninstalling
5692                            // the update would make the library go away, and assumptions
5693                            // we made such as through app install filtering would now
5694                            // have allowed apps on the device which aren't compatible
5695                            // with it.  Better to just have the restriction here, be
5696                            // conservative, and create many fewer cases that can negatively
5697                            // impact the user experience.
5698                            final PackageSetting sysPs = mSettings
5699                                    .getDisabledSystemPkgLPr(pkg.packageName);
5700                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5701                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5702                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5703                                        allowed = true;
5704                                        allowed = true;
5705                                        break;
5706                                    }
5707                                }
5708                            }
5709                        } else {
5710                            allowed = true;
5711                        }
5712                        if (allowed) {
5713                            if (!mSharedLibraries.containsKey(name)) {
5714                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5715                            } else if (!name.equals(pkg.packageName)) {
5716                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5717                                        + name + " already exists; skipping");
5718                            }
5719                        } else {
5720                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5721                                    + name + " that is not declared on system image; skipping");
5722                        }
5723                    }
5724                    if ((scanMode&SCAN_BOOTING) == 0) {
5725                        // If we are not booting, we need to update any applications
5726                        // that are clients of our shared library.  If we are booting,
5727                        // this will all be done once the scan is complete.
5728                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5729                    }
5730                }
5731            }
5732        }
5733
5734        // We also need to dexopt any apps that are dependent on this library.  Note that
5735        // if these fail, we should abort the install since installing the library will
5736        // result in some apps being broken.
5737        if (clientLibPkgs != null) {
5738            if ((scanMode&SCAN_NO_DEX) == 0) {
5739                for (int i=0; i<clientLibPkgs.size(); i++) {
5740                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5741                    if (performDexOptLI(clientPkg, null /* instruction sets */,
5742                            forceDex, (scanMode&SCAN_DEFER_DEX) != 0, false)
5743                            == DEX_OPT_FAILED) {
5744                        if ((scanMode & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5745                            removeDataDirsLI(pkg.packageName);
5746                        }
5747
5748                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5749                                "scanPackageLI failed to dexopt clientLibPkgs");
5750                    }
5751                }
5752            }
5753        }
5754
5755        // Request the ActivityManager to kill the process(only for existing packages)
5756        // so that we do not end up in a confused state while the user is still using the older
5757        // version of the application while the new one gets installed.
5758        if ((parseFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
5759            // If the package lives in an asec, tell everyone that the container is going
5760            // away so they can clean up any references to its resources (which would prevent
5761            // vold from being able to unmount the asec)
5762            if (isForwardLocked(pkg) || isExternal(pkg)) {
5763                if (DEBUG_INSTALL) {
5764                    Slog.i(TAG, "upgrading pkg " + pkg + " is ASEC-hosted -> UNAVAILABLE");
5765                }
5766                final int[] uidArray = new int[] { pkg.applicationInfo.uid };
5767                final ArrayList<String> pkgList = new ArrayList<String>(1);
5768                pkgList.add(pkg.applicationInfo.packageName);
5769                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
5770            }
5771
5772            // Post the request that it be killed now that the going-away broadcast is en route
5773            killApplication(pkg.applicationInfo.packageName,
5774                        pkg.applicationInfo.uid, "update pkg");
5775        }
5776
5777        // Also need to kill any apps that are dependent on the library.
5778        if (clientLibPkgs != null) {
5779            for (int i=0; i<clientLibPkgs.size(); i++) {
5780                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5781                killApplication(clientPkg.applicationInfo.packageName,
5782                        clientPkg.applicationInfo.uid, "update lib");
5783            }
5784        }
5785
5786        // writer
5787        synchronized (mPackages) {
5788            // We don't expect installation to fail beyond this point,
5789            if ((scanMode&SCAN_MONITOR) != 0) {
5790                mAppDirs.put(pkg.codePath, pkg);
5791            }
5792            // Add the new setting to mSettings
5793            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5794            // Add the new setting to mPackages
5795            mPackages.put(pkg.applicationInfo.packageName, pkg);
5796            // Make sure we don't accidentally delete its data.
5797            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5798            while (iter.hasNext()) {
5799                PackageCleanItem item = iter.next();
5800                if (pkgName.equals(item.packageName)) {
5801                    iter.remove();
5802                }
5803            }
5804
5805            // Take care of first install / last update times.
5806            if (currentTime != 0) {
5807                if (pkgSetting.firstInstallTime == 0) {
5808                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5809                } else if ((scanMode&SCAN_UPDATE_TIME) != 0) {
5810                    pkgSetting.lastUpdateTime = currentTime;
5811                }
5812            } else if (pkgSetting.firstInstallTime == 0) {
5813                // We need *something*.  Take time time stamp of the file.
5814                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5815            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5816                if (scanFileTime != pkgSetting.timeStamp) {
5817                    // A package on the system image has changed; consider this
5818                    // to be an update.
5819                    pkgSetting.lastUpdateTime = scanFileTime;
5820                }
5821            }
5822
5823            // Add the package's KeySets to the global KeySetManagerService
5824            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5825            try {
5826                // Old KeySetData no longer valid.
5827                ksms.removeAppKeySetDataLPw(pkg.packageName);
5828                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5829                if (pkg.mKeySetMapping != null) {
5830                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5831                            pkg.mKeySetMapping.entrySet()) {
5832                        if (entry.getValue() != null) {
5833                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5834                                                          entry.getValue(), entry.getKey());
5835                        }
5836                    }
5837                    if (pkg.mUpgradeKeySets != null) {
5838                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5839                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5840                        }
5841                    }
5842                }
5843            } catch (NullPointerException e) {
5844                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5845            } catch (IllegalArgumentException e) {
5846                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5847            }
5848
5849            int N = pkg.providers.size();
5850            StringBuilder r = null;
5851            int i;
5852            for (i=0; i<N; i++) {
5853                PackageParser.Provider p = pkg.providers.get(i);
5854                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5855                        p.info.processName, pkg.applicationInfo.uid);
5856                mProviders.addProvider(p);
5857                p.syncable = p.info.isSyncable;
5858                if (p.info.authority != null) {
5859                    String names[] = p.info.authority.split(";");
5860                    p.info.authority = null;
5861                    for (int j = 0; j < names.length; j++) {
5862                        if (j == 1 && p.syncable) {
5863                            // We only want the first authority for a provider to possibly be
5864                            // syncable, so if we already added this provider using a different
5865                            // authority clear the syncable flag. We copy the provider before
5866                            // changing it because the mProviders object contains a reference
5867                            // to a provider that we don't want to change.
5868                            // Only do this for the second authority since the resulting provider
5869                            // object can be the same for all future authorities for this provider.
5870                            p = new PackageParser.Provider(p);
5871                            p.syncable = false;
5872                        }
5873                        if (!mProvidersByAuthority.containsKey(names[j])) {
5874                            mProvidersByAuthority.put(names[j], p);
5875                            if (p.info.authority == null) {
5876                                p.info.authority = names[j];
5877                            } else {
5878                                p.info.authority = p.info.authority + ";" + names[j];
5879                            }
5880                            if (DEBUG_PACKAGE_SCANNING) {
5881                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5882                                    Log.d(TAG, "Registered content provider: " + names[j]
5883                                            + ", className = " + p.info.name + ", isSyncable = "
5884                                            + p.info.isSyncable);
5885                            }
5886                        } else {
5887                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5888                            Slog.w(TAG, "Skipping provider name " + names[j] +
5889                                    " (in package " + pkg.applicationInfo.packageName +
5890                                    "): name already used by "
5891                                    + ((other != null && other.getComponentName() != null)
5892                                            ? other.getComponentName().getPackageName() : "?"));
5893                        }
5894                    }
5895                }
5896                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5897                    if (r == null) {
5898                        r = new StringBuilder(256);
5899                    } else {
5900                        r.append(' ');
5901                    }
5902                    r.append(p.info.name);
5903                }
5904            }
5905            if (r != null) {
5906                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
5907            }
5908
5909            N = pkg.services.size();
5910            r = null;
5911            for (i=0; i<N; i++) {
5912                PackageParser.Service s = pkg.services.get(i);
5913                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
5914                        s.info.processName, pkg.applicationInfo.uid);
5915                mServices.addService(s);
5916                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5917                    if (r == null) {
5918                        r = new StringBuilder(256);
5919                    } else {
5920                        r.append(' ');
5921                    }
5922                    r.append(s.info.name);
5923                }
5924            }
5925            if (r != null) {
5926                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
5927            }
5928
5929            N = pkg.receivers.size();
5930            r = null;
5931            for (i=0; i<N; i++) {
5932                PackageParser.Activity a = pkg.receivers.get(i);
5933                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5934                        a.info.processName, pkg.applicationInfo.uid);
5935                mReceivers.addActivity(a, "receiver");
5936                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5937                    if (r == null) {
5938                        r = new StringBuilder(256);
5939                    } else {
5940                        r.append(' ');
5941                    }
5942                    r.append(a.info.name);
5943                }
5944            }
5945            if (r != null) {
5946                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
5947            }
5948
5949            N = pkg.activities.size();
5950            r = null;
5951            for (i=0; i<N; i++) {
5952                PackageParser.Activity a = pkg.activities.get(i);
5953                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5954                        a.info.processName, pkg.applicationInfo.uid);
5955                mActivities.addActivity(a, "activity");
5956                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5957                    if (r == null) {
5958                        r = new StringBuilder(256);
5959                    } else {
5960                        r.append(' ');
5961                    }
5962                    r.append(a.info.name);
5963                }
5964            }
5965            if (r != null) {
5966                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
5967            }
5968
5969            N = pkg.permissionGroups.size();
5970            r = null;
5971            for (i=0; i<N; i++) {
5972                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
5973                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
5974                if (cur == null) {
5975                    mPermissionGroups.put(pg.info.name, pg);
5976                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5977                        if (r == null) {
5978                            r = new StringBuilder(256);
5979                        } else {
5980                            r.append(' ');
5981                        }
5982                        r.append(pg.info.name);
5983                    }
5984                } else {
5985                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
5986                            + pg.info.packageName + " ignored: original from "
5987                            + cur.info.packageName);
5988                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5989                        if (r == null) {
5990                            r = new StringBuilder(256);
5991                        } else {
5992                            r.append(' ');
5993                        }
5994                        r.append("DUP:");
5995                        r.append(pg.info.name);
5996                    }
5997                }
5998            }
5999            if (r != null) {
6000                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6001            }
6002
6003            N = pkg.permissions.size();
6004            r = null;
6005            for (i=0; i<N; i++) {
6006                PackageParser.Permission p = pkg.permissions.get(i);
6007                HashMap<String, BasePermission> permissionMap =
6008                        p.tree ? mSettings.mPermissionTrees
6009                        : mSettings.mPermissions;
6010                p.group = mPermissionGroups.get(p.info.group);
6011                if (p.info.group == null || p.group != null) {
6012                    BasePermission bp = permissionMap.get(p.info.name);
6013                    if (bp == null) {
6014                        bp = new BasePermission(p.info.name, p.info.packageName,
6015                                BasePermission.TYPE_NORMAL);
6016                        permissionMap.put(p.info.name, bp);
6017                    }
6018                    if (bp.perm == null) {
6019                        if (bp.sourcePackage != null
6020                                && !bp.sourcePackage.equals(p.info.packageName)) {
6021                            // If this is a permission that was formerly defined by a non-system
6022                            // app, but is now defined by a system app (following an upgrade),
6023                            // discard the previous declaration and consider the system's to be
6024                            // canonical.
6025                            if (isSystemApp(p.owner)) {
6026                                String msg = "New decl " + p.owner + " of permission  "
6027                                        + p.info.name + " is system";
6028                                reportSettingsProblem(Log.WARN, msg);
6029                                bp.sourcePackage = null;
6030                            }
6031                        }
6032                        if (bp.sourcePackage == null
6033                                || bp.sourcePackage.equals(p.info.packageName)) {
6034                            BasePermission tree = findPermissionTreeLP(p.info.name);
6035                            if (tree == null
6036                                    || tree.sourcePackage.equals(p.info.packageName)) {
6037                                bp.packageSetting = pkgSetting;
6038                                bp.perm = p;
6039                                bp.uid = pkg.applicationInfo.uid;
6040                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6041                                    if (r == null) {
6042                                        r = new StringBuilder(256);
6043                                    } else {
6044                                        r.append(' ');
6045                                    }
6046                                    r.append(p.info.name);
6047                                }
6048                            } else {
6049                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6050                                        + p.info.packageName + " ignored: base tree "
6051                                        + tree.name + " is from package "
6052                                        + tree.sourcePackage);
6053                            }
6054                        } else {
6055                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6056                                    + p.info.packageName + " ignored: original from "
6057                                    + bp.sourcePackage);
6058                        }
6059                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6060                        if (r == null) {
6061                            r = new StringBuilder(256);
6062                        } else {
6063                            r.append(' ');
6064                        }
6065                        r.append("DUP:");
6066                        r.append(p.info.name);
6067                    }
6068                    if (bp.perm == p) {
6069                        bp.protectionLevel = p.info.protectionLevel;
6070                    }
6071                } else {
6072                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6073                            + p.info.packageName + " ignored: no group "
6074                            + p.group);
6075                }
6076            }
6077            if (r != null) {
6078                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6079            }
6080
6081            N = pkg.instrumentation.size();
6082            r = null;
6083            for (i=0; i<N; i++) {
6084                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6085                a.info.packageName = pkg.applicationInfo.packageName;
6086                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6087                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6088                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6089                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6090                a.info.dataDir = pkg.applicationInfo.dataDir;
6091
6092                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6093                // need other information about the application, like the ABI and what not ?
6094                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6095                mInstrumentation.put(a.getComponentName(), a);
6096                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6097                    if (r == null) {
6098                        r = new StringBuilder(256);
6099                    } else {
6100                        r.append(' ');
6101                    }
6102                    r.append(a.info.name);
6103                }
6104            }
6105            if (r != null) {
6106                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6107            }
6108
6109            if (pkg.protectedBroadcasts != null) {
6110                N = pkg.protectedBroadcasts.size();
6111                for (i=0; i<N; i++) {
6112                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6113                }
6114            }
6115
6116            pkgSetting.setTimeStamp(scanFileTime);
6117
6118            // Create idmap files for pairs of (packages, overlay packages).
6119            // Note: "android", ie framework-res.apk, is handled by native layers.
6120            if (pkg.mOverlayTarget != null) {
6121                // This is an overlay package.
6122                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6123                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6124                        mOverlays.put(pkg.mOverlayTarget,
6125                                new HashMap<String, PackageParser.Package>());
6126                    }
6127                    HashMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6128                    map.put(pkg.packageName, pkg);
6129                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6130                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6131                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6132                                "scanPackageLI failed to createIdmap");
6133                    }
6134                }
6135            } else if (mOverlays.containsKey(pkg.packageName) &&
6136                    !pkg.packageName.equals("android")) {
6137                // This is a regular package, with one or more known overlay packages.
6138                createIdmapsForPackageLI(pkg);
6139            }
6140        }
6141
6142        return pkg;
6143    }
6144
6145    /**
6146     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6147     * i.e, so that all packages can be run inside a single process if required.
6148     *
6149     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6150     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6151     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6152     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6153     * updating a package that belongs to a shared user.
6154     *
6155     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6156     * adds unnecessary complexity.
6157     */
6158    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6159            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6160        String requiredInstructionSet = null;
6161        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6162            requiredInstructionSet = VMRuntime.getInstructionSet(
6163                     scannedPackage.applicationInfo.primaryCpuAbi);
6164        }
6165
6166        PackageSetting requirer = null;
6167        for (PackageSetting ps : packagesForUser) {
6168            // If packagesForUser contains scannedPackage, we skip it. This will happen
6169            // when scannedPackage is an update of an existing package. Without this check,
6170            // we will never be able to change the ABI of any package belonging to a shared
6171            // user, even if it's compatible with other packages.
6172            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6173                if (ps.primaryCpuAbiString == null) {
6174                    continue;
6175                }
6176
6177                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6178                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6179                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6180                    // this but there's not much we can do.
6181                    String errorMessage = "Instruction set mismatch, "
6182                            + ((requirer == null) ? "[caller]" : requirer)
6183                            + " requires " + requiredInstructionSet + " whereas " + ps
6184                            + " requires " + instructionSet;
6185                    Slog.w(TAG, errorMessage);
6186                }
6187
6188                if (requiredInstructionSet == null) {
6189                    requiredInstructionSet = instructionSet;
6190                    requirer = ps;
6191                }
6192            }
6193        }
6194
6195        if (requiredInstructionSet != null) {
6196            String adjustedAbi;
6197            if (requirer != null) {
6198                // requirer != null implies that either scannedPackage was null or that scannedPackage
6199                // did not require an ABI, in which case we have to adjust scannedPackage to match
6200                // the ABI of the set (which is the same as requirer's ABI)
6201                adjustedAbi = requirer.primaryCpuAbiString;
6202                if (scannedPackage != null) {
6203                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6204                }
6205            } else {
6206                // requirer == null implies that we're updating all ABIs in the set to
6207                // match scannedPackage.
6208                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6209            }
6210
6211            for (PackageSetting ps : packagesForUser) {
6212                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6213                    if (ps.primaryCpuAbiString != null) {
6214                        continue;
6215                    }
6216
6217                    ps.primaryCpuAbiString = adjustedAbi;
6218                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6219                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6220                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6221
6222                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6223                                deferDexOpt, true) == DEX_OPT_FAILED) {
6224                            ps.primaryCpuAbiString = null;
6225                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6226                            return;
6227                        } else {
6228                            mInstaller.rmdex(ps.codePathString,
6229                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6230                        }
6231                    }
6232                }
6233            }
6234        }
6235    }
6236
6237    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6238        synchronized (mPackages) {
6239            mResolverReplaced = true;
6240            // Set up information for custom user intent resolution activity.
6241            mResolveActivity.applicationInfo = pkg.applicationInfo;
6242            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6243            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6244            mResolveActivity.processName = null;
6245            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6246            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6247                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6248            mResolveActivity.theme = 0;
6249            mResolveActivity.exported = true;
6250            mResolveActivity.enabled = true;
6251            mResolveInfo.activityInfo = mResolveActivity;
6252            mResolveInfo.priority = 0;
6253            mResolveInfo.preferredOrder = 0;
6254            mResolveInfo.match = 0;
6255            mResolveComponentName = mCustomResolverComponentName;
6256            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6257                    mResolveComponentName);
6258        }
6259    }
6260
6261    private static String calculateBundledApkRoot(final String codePathString) {
6262        final File codePath = new File(codePathString);
6263        final File codeRoot;
6264        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6265            codeRoot = Environment.getRootDirectory();
6266        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6267            codeRoot = Environment.getOemDirectory();
6268        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6269            codeRoot = Environment.getVendorDirectory();
6270        } else {
6271            // Unrecognized code path; take its top real segment as the apk root:
6272            // e.g. /something/app/blah.apk => /something
6273            try {
6274                File f = codePath.getCanonicalFile();
6275                File parent = f.getParentFile();    // non-null because codePath is a file
6276                File tmp;
6277                while ((tmp = parent.getParentFile()) != null) {
6278                    f = parent;
6279                    parent = tmp;
6280                }
6281                codeRoot = f;
6282                Slog.w(TAG, "Unrecognized code path "
6283                        + codePath + " - using " + codeRoot);
6284            } catch (IOException e) {
6285                // Can't canonicalize the code path -- shenanigans?
6286                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6287                return Environment.getRootDirectory().getPath();
6288            }
6289        }
6290        return codeRoot.getPath();
6291    }
6292
6293    /**
6294     * Derive and set the location of native libraries for the given package,
6295     * which varies depending on where and how the package was installed.
6296     */
6297    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6298        final ApplicationInfo info = pkg.applicationInfo;
6299        final String codePath = pkg.codePath;
6300        final File codeFile = new File(codePath);
6301        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6302        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6303
6304        info.nativeLibraryRootDir = null;
6305        info.nativeLibraryRootRequiresIsa = false;
6306        info.nativeLibraryDir = null;
6307        info.secondaryNativeLibraryDir = null;
6308
6309        if (isApkFile(codeFile)) {
6310            // Monolithic install
6311            if (bundledApp) {
6312                // If "/system/lib64/apkname" exists, assume that is the per-package
6313                // native library directory to use; otherwise use "/system/lib/apkname".
6314                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6315                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6316                        getPrimaryInstructionSet(info));
6317
6318                // This is a bundled system app so choose the path based on the ABI.
6319                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6320                // is just the default path.
6321                final String apkName = deriveCodePathName(codePath);
6322                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6323                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6324                        apkName).getAbsolutePath();
6325
6326                if (info.secondaryCpuAbi != null) {
6327                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6328                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6329                            secondaryLibDir, apkName).getAbsolutePath();
6330                }
6331            } else if (asecApp) {
6332                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6333                        .getAbsolutePath();
6334            } else {
6335                final String apkName = deriveCodePathName(codePath);
6336                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6337                        .getAbsolutePath();
6338            }
6339
6340            info.nativeLibraryRootRequiresIsa = false;
6341            info.nativeLibraryDir = info.nativeLibraryRootDir;
6342        } else {
6343            // Cluster install
6344            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6345            info.nativeLibraryRootRequiresIsa = true;
6346
6347            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6348                    getPrimaryInstructionSet(info)).getAbsolutePath();
6349
6350            if (info.secondaryCpuAbi != null) {
6351                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6352                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6353            }
6354        }
6355    }
6356
6357    /**
6358     * Calculate the abis and roots for a bundled app. These can uniquely
6359     * be determined from the contents of the system partition, i.e whether
6360     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6361     * of this information, and instead assume that the system was built
6362     * sensibly.
6363     */
6364    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6365                                           PackageSetting pkgSetting) {
6366        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6367
6368        // If "/system/lib64/apkname" exists, assume that is the per-package
6369        // native library directory to use; otherwise use "/system/lib/apkname".
6370        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6371        setBundledAppAbi(pkg, apkRoot, apkName);
6372        // pkgSetting might be null during rescan following uninstall of updates
6373        // to a bundled app, so accommodate that possibility.  The settings in
6374        // that case will be established later from the parsed package.
6375        //
6376        // If the settings aren't null, sync them up with what we've just derived.
6377        // note that apkRoot isn't stored in the package settings.
6378        if (pkgSetting != null) {
6379            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6380            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6381        }
6382    }
6383
6384    /**
6385     * Deduces the ABI of a bundled app and sets the relevant fields on the
6386     * parsed pkg object.
6387     *
6388     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6389     *        under which system libraries are installed.
6390     * @param apkName the name of the installed package.
6391     */
6392    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6393        final File codeFile = new File(pkg.codePath);
6394
6395        final boolean has64BitLibs;
6396        final boolean has32BitLibs;
6397        if (isApkFile(codeFile)) {
6398            // Monolithic install
6399            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6400            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6401        } else {
6402            // Cluster install
6403            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6404            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6405                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6406                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6407                has64BitLibs = (new File(rootDir, isa)).exists();
6408            } else {
6409                has64BitLibs = false;
6410            }
6411            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6412                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6413                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6414                has32BitLibs = (new File(rootDir, isa)).exists();
6415            } else {
6416                has32BitLibs = false;
6417            }
6418        }
6419
6420        if (has64BitLibs && !has32BitLibs) {
6421            // The package has 64 bit libs, but not 32 bit libs. Its primary
6422            // ABI should be 64 bit. We can safely assume here that the bundled
6423            // native libraries correspond to the most preferred ABI in the list.
6424
6425            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6426            pkg.applicationInfo.secondaryCpuAbi = null;
6427        } else if (has32BitLibs && !has64BitLibs) {
6428            // The package has 32 bit libs but not 64 bit libs. Its primary
6429            // ABI should be 32 bit.
6430
6431            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6432            pkg.applicationInfo.secondaryCpuAbi = null;
6433        } else if (has32BitLibs && has64BitLibs) {
6434            // The application has both 64 and 32 bit bundled libraries. We check
6435            // here that the app declares multiArch support, and warn if it doesn't.
6436            //
6437            // We will be lenient here and record both ABIs. The primary will be the
6438            // ABI that's higher on the list, i.e, a device that's configured to prefer
6439            // 64 bit apps will see a 64 bit primary ABI,
6440
6441            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6442                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6443            }
6444
6445            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6446                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6447                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6448            } else {
6449                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6450                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6451            }
6452        } else {
6453            pkg.applicationInfo.primaryCpuAbi = null;
6454            pkg.applicationInfo.secondaryCpuAbi = null;
6455        }
6456    }
6457
6458    private static void createNativeLibrarySubdir(File path) throws IOException {
6459        if (!path.isDirectory()) {
6460            path.delete();
6461
6462            if (!path.mkdir()) {
6463                throw new IOException("Cannot create " + path.getPath());
6464            }
6465
6466            try {
6467                Os.chmod(path.getPath(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
6468            } catch (ErrnoException e) {
6469                throw new IOException("Cannot chmod native library directory "
6470                        + path.getPath(), e);
6471            }
6472        } else if (!SELinux.restorecon(path)) {
6473            throw new IOException("Cannot set SELinux context for " + path.getPath());
6474        }
6475    }
6476
6477    private static int copyNativeLibrariesForInternalApp(NativeLibraryHelper.Handle handle,
6478            final File nativeLibraryRoot, String[] abiList, boolean useIsaSubdir) throws IOException {
6479        createNativeLibrarySubdir(nativeLibraryRoot);
6480
6481        /*
6482         * If this is an internal application or our nativeLibraryPath points to
6483         * the app-lib directory, unpack the libraries if necessary.
6484         */
6485        int abi = NativeLibraryHelper.findSupportedAbi(handle, abiList);
6486        if (abi >= 0) {
6487            /*
6488             * If we have a matching instruction set, construct a subdir under the native
6489             * library root that corresponds to this instruction set.
6490             */
6491            final String instructionSet = VMRuntime.getInstructionSet(abiList[abi]);
6492            final File subDir;
6493            if (useIsaSubdir) {
6494                final File isaSubdir = new File(nativeLibraryRoot, instructionSet);
6495                createNativeLibrarySubdir(isaSubdir);
6496                subDir = isaSubdir;
6497            } else {
6498                subDir = nativeLibraryRoot;
6499            }
6500
6501            int copyRet = NativeLibraryHelper.copyNativeBinariesIfNeededLI(handle, subDir, abiList[abi]);
6502            if (copyRet != PackageManager.INSTALL_SUCCEEDED) {
6503                return copyRet;
6504            }
6505        }
6506
6507        return abi;
6508    }
6509
6510    private void killApplication(String pkgName, int appId, String reason) {
6511        // Request the ActivityManager to kill the process(only for existing packages)
6512        // so that we do not end up in a confused state while the user is still using the older
6513        // version of the application while the new one gets installed.
6514        IActivityManager am = ActivityManagerNative.getDefault();
6515        if (am != null) {
6516            try {
6517                am.killApplicationWithAppId(pkgName, appId, reason);
6518            } catch (RemoteException e) {
6519            }
6520        }
6521    }
6522
6523    void removePackageLI(PackageSetting ps, boolean chatty) {
6524        if (DEBUG_INSTALL) {
6525            if (chatty)
6526                Log.d(TAG, "Removing package " + ps.name);
6527        }
6528
6529        // writer
6530        synchronized (mPackages) {
6531            mPackages.remove(ps.name);
6532            if (ps.codePathString != null) {
6533                mAppDirs.remove(ps.codePathString);
6534            }
6535
6536            final PackageParser.Package pkg = ps.pkg;
6537            if (pkg != null) {
6538                cleanPackageDataStructuresLILPw(pkg, chatty);
6539            }
6540        }
6541    }
6542
6543    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6544        if (DEBUG_INSTALL) {
6545            if (chatty)
6546                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6547        }
6548
6549        // writer
6550        synchronized (mPackages) {
6551            mPackages.remove(pkg.applicationInfo.packageName);
6552            if (pkg.codePath != null) {
6553                mAppDirs.remove(pkg.codePath);
6554            }
6555            cleanPackageDataStructuresLILPw(pkg, chatty);
6556        }
6557    }
6558
6559    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6560        int N = pkg.providers.size();
6561        StringBuilder r = null;
6562        int i;
6563        for (i=0; i<N; i++) {
6564            PackageParser.Provider p = pkg.providers.get(i);
6565            mProviders.removeProvider(p);
6566            if (p.info.authority == null) {
6567
6568                /* There was another ContentProvider with this authority when
6569                 * this app was installed so this authority is null,
6570                 * Ignore it as we don't have to unregister the provider.
6571                 */
6572                continue;
6573            }
6574            String names[] = p.info.authority.split(";");
6575            for (int j = 0; j < names.length; j++) {
6576                if (mProvidersByAuthority.get(names[j]) == p) {
6577                    mProvidersByAuthority.remove(names[j]);
6578                    if (DEBUG_REMOVE) {
6579                        if (chatty)
6580                            Log.d(TAG, "Unregistered content provider: " + names[j]
6581                                    + ", className = " + p.info.name + ", isSyncable = "
6582                                    + p.info.isSyncable);
6583                    }
6584                }
6585            }
6586            if (DEBUG_REMOVE && chatty) {
6587                if (r == null) {
6588                    r = new StringBuilder(256);
6589                } else {
6590                    r.append(' ');
6591                }
6592                r.append(p.info.name);
6593            }
6594        }
6595        if (r != null) {
6596            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6597        }
6598
6599        N = pkg.services.size();
6600        r = null;
6601        for (i=0; i<N; i++) {
6602            PackageParser.Service s = pkg.services.get(i);
6603            mServices.removeService(s);
6604            if (chatty) {
6605                if (r == null) {
6606                    r = new StringBuilder(256);
6607                } else {
6608                    r.append(' ');
6609                }
6610                r.append(s.info.name);
6611            }
6612        }
6613        if (r != null) {
6614            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6615        }
6616
6617        N = pkg.receivers.size();
6618        r = null;
6619        for (i=0; i<N; i++) {
6620            PackageParser.Activity a = pkg.receivers.get(i);
6621            mReceivers.removeActivity(a, "receiver");
6622            if (DEBUG_REMOVE && chatty) {
6623                if (r == null) {
6624                    r = new StringBuilder(256);
6625                } else {
6626                    r.append(' ');
6627                }
6628                r.append(a.info.name);
6629            }
6630        }
6631        if (r != null) {
6632            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6633        }
6634
6635        N = pkg.activities.size();
6636        r = null;
6637        for (i=0; i<N; i++) {
6638            PackageParser.Activity a = pkg.activities.get(i);
6639            mActivities.removeActivity(a, "activity");
6640            if (DEBUG_REMOVE && chatty) {
6641                if (r == null) {
6642                    r = new StringBuilder(256);
6643                } else {
6644                    r.append(' ');
6645                }
6646                r.append(a.info.name);
6647            }
6648        }
6649        if (r != null) {
6650            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6651        }
6652
6653        N = pkg.permissions.size();
6654        r = null;
6655        for (i=0; i<N; i++) {
6656            PackageParser.Permission p = pkg.permissions.get(i);
6657            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6658            if (bp == null) {
6659                bp = mSettings.mPermissionTrees.get(p.info.name);
6660            }
6661            if (bp != null && bp.perm == p) {
6662                bp.perm = null;
6663                if (DEBUG_REMOVE && chatty) {
6664                    if (r == null) {
6665                        r = new StringBuilder(256);
6666                    } else {
6667                        r.append(' ');
6668                    }
6669                    r.append(p.info.name);
6670                }
6671            }
6672            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6673                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6674                if (appOpPerms != null) {
6675                    appOpPerms.remove(pkg.packageName);
6676                }
6677            }
6678        }
6679        if (r != null) {
6680            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6681        }
6682
6683        N = pkg.requestedPermissions.size();
6684        r = null;
6685        for (i=0; i<N; i++) {
6686            String perm = pkg.requestedPermissions.get(i);
6687            BasePermission bp = mSettings.mPermissions.get(perm);
6688            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6689                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6690                if (appOpPerms != null) {
6691                    appOpPerms.remove(pkg.packageName);
6692                    if (appOpPerms.isEmpty()) {
6693                        mAppOpPermissionPackages.remove(perm);
6694                    }
6695                }
6696            }
6697        }
6698        if (r != null) {
6699            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6700        }
6701
6702        N = pkg.instrumentation.size();
6703        r = null;
6704        for (i=0; i<N; i++) {
6705            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6706            mInstrumentation.remove(a.getComponentName());
6707            if (DEBUG_REMOVE && chatty) {
6708                if (r == null) {
6709                    r = new StringBuilder(256);
6710                } else {
6711                    r.append(' ');
6712                }
6713                r.append(a.info.name);
6714            }
6715        }
6716        if (r != null) {
6717            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6718        }
6719
6720        r = null;
6721        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6722            // Only system apps can hold shared libraries.
6723            if (pkg.libraryNames != null) {
6724                for (i=0; i<pkg.libraryNames.size(); i++) {
6725                    String name = pkg.libraryNames.get(i);
6726                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6727                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6728                        mSharedLibraries.remove(name);
6729                        if (DEBUG_REMOVE && chatty) {
6730                            if (r == null) {
6731                                r = new StringBuilder(256);
6732                            } else {
6733                                r.append(' ');
6734                            }
6735                            r.append(name);
6736                        }
6737                    }
6738                }
6739            }
6740        }
6741        if (r != null) {
6742            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6743        }
6744    }
6745
6746    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6747        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6748            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6749                return true;
6750            }
6751        }
6752        return false;
6753    }
6754
6755    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6756    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6757    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6758
6759    private void updatePermissionsLPw(String changingPkg,
6760            PackageParser.Package pkgInfo, int flags) {
6761        // Make sure there are no dangling permission trees.
6762        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6763        while (it.hasNext()) {
6764            final BasePermission bp = it.next();
6765            if (bp.packageSetting == null) {
6766                // We may not yet have parsed the package, so just see if
6767                // we still know about its settings.
6768                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6769            }
6770            if (bp.packageSetting == null) {
6771                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6772                        + " from package " + bp.sourcePackage);
6773                it.remove();
6774            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6775                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6776                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6777                            + " from package " + bp.sourcePackage);
6778                    flags |= UPDATE_PERMISSIONS_ALL;
6779                    it.remove();
6780                }
6781            }
6782        }
6783
6784        // Make sure all dynamic permissions have been assigned to a package,
6785        // and make sure there are no dangling permissions.
6786        it = mSettings.mPermissions.values().iterator();
6787        while (it.hasNext()) {
6788            final BasePermission bp = it.next();
6789            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6790                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6791                        + bp.name + " pkg=" + bp.sourcePackage
6792                        + " info=" + bp.pendingInfo);
6793                if (bp.packageSetting == null && bp.pendingInfo != null) {
6794                    final BasePermission tree = findPermissionTreeLP(bp.name);
6795                    if (tree != null && tree.perm != null) {
6796                        bp.packageSetting = tree.packageSetting;
6797                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6798                                new PermissionInfo(bp.pendingInfo));
6799                        bp.perm.info.packageName = tree.perm.info.packageName;
6800                        bp.perm.info.name = bp.name;
6801                        bp.uid = tree.uid;
6802                    }
6803                }
6804            }
6805            if (bp.packageSetting == null) {
6806                // We may not yet have parsed the package, so just see if
6807                // we still know about its settings.
6808                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6809            }
6810            if (bp.packageSetting == null) {
6811                Slog.w(TAG, "Removing dangling permission: " + bp.name
6812                        + " from package " + bp.sourcePackage);
6813                it.remove();
6814            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6815                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6816                    Slog.i(TAG, "Removing old permission: " + bp.name
6817                            + " from package " + bp.sourcePackage);
6818                    flags |= UPDATE_PERMISSIONS_ALL;
6819                    it.remove();
6820                }
6821            }
6822        }
6823
6824        // Now update the permissions for all packages, in particular
6825        // replace the granted permissions of the system packages.
6826        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6827            for (PackageParser.Package pkg : mPackages.values()) {
6828                if (pkg != pkgInfo) {
6829                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0);
6830                }
6831            }
6832        }
6833
6834        if (pkgInfo != null) {
6835            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0);
6836        }
6837    }
6838
6839    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace) {
6840        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6841        if (ps == null) {
6842            return;
6843        }
6844        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6845        HashSet<String> origPermissions = gp.grantedPermissions;
6846        boolean changedPermission = false;
6847
6848        if (replace) {
6849            ps.permissionsFixed = false;
6850            if (gp == ps) {
6851                origPermissions = new HashSet<String>(gp.grantedPermissions);
6852                gp.grantedPermissions.clear();
6853                gp.gids = mGlobalGids;
6854            }
6855        }
6856
6857        if (gp.gids == null) {
6858            gp.gids = mGlobalGids;
6859        }
6860
6861        final int N = pkg.requestedPermissions.size();
6862        for (int i=0; i<N; i++) {
6863            final String name = pkg.requestedPermissions.get(i);
6864            final boolean required = pkg.requestedPermissionsRequired.get(i);
6865            final BasePermission bp = mSettings.mPermissions.get(name);
6866            if (DEBUG_INSTALL) {
6867                if (gp != ps) {
6868                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6869                }
6870            }
6871
6872            if (bp == null || bp.packageSetting == null) {
6873                Slog.w(TAG, "Unknown permission " + name
6874                        + " in package " + pkg.packageName);
6875                continue;
6876            }
6877
6878            final String perm = bp.name;
6879            boolean allowed;
6880            boolean allowedSig = false;
6881            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6882                // Keep track of app op permissions.
6883                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6884                if (pkgs == null) {
6885                    pkgs = new ArraySet<>();
6886                    mAppOpPermissionPackages.put(bp.name, pkgs);
6887                }
6888                pkgs.add(pkg.packageName);
6889            }
6890            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6891            if (level == PermissionInfo.PROTECTION_NORMAL
6892                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6893                // We grant a normal or dangerous permission if any of the following
6894                // are true:
6895                // 1) The permission is required
6896                // 2) The permission is optional, but was granted in the past
6897                // 3) The permission is optional, but was requested by an
6898                //    app in /system (not /data)
6899                //
6900                // Otherwise, reject the permission.
6901                allowed = (required || origPermissions.contains(perm)
6902                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6903            } else if (bp.packageSetting == null) {
6904                // This permission is invalid; skip it.
6905                allowed = false;
6906            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
6907                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
6908                if (allowed) {
6909                    allowedSig = true;
6910                }
6911            } else {
6912                allowed = false;
6913            }
6914            if (DEBUG_INSTALL) {
6915                if (gp != ps) {
6916                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
6917                }
6918            }
6919            if (allowed) {
6920                if (!isSystemApp(ps) && ps.permissionsFixed) {
6921                    // If this is an existing, non-system package, then
6922                    // we can't add any new permissions to it.
6923                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
6924                        // Except...  if this is a permission that was added
6925                        // to the platform (note: need to only do this when
6926                        // updating the platform).
6927                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
6928                    }
6929                }
6930                if (allowed) {
6931                    if (!gp.grantedPermissions.contains(perm)) {
6932                        changedPermission = true;
6933                        gp.grantedPermissions.add(perm);
6934                        gp.gids = appendInts(gp.gids, bp.gids);
6935                    } else if (!ps.haveGids) {
6936                        gp.gids = appendInts(gp.gids, bp.gids);
6937                    }
6938                } else {
6939                    Slog.w(TAG, "Not granting permission " + perm
6940                            + " to package " + pkg.packageName
6941                            + " because it was previously installed without");
6942                }
6943            } else {
6944                if (gp.grantedPermissions.remove(perm)) {
6945                    changedPermission = true;
6946                    gp.gids = removeInts(gp.gids, bp.gids);
6947                    Slog.i(TAG, "Un-granting permission " + perm
6948                            + " from package " + pkg.packageName
6949                            + " (protectionLevel=" + bp.protectionLevel
6950                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6951                            + ")");
6952                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
6953                    // Don't print warning for app op permissions, since it is fine for them
6954                    // not to be granted, there is a UI for the user to decide.
6955                    Slog.w(TAG, "Not granting permission " + perm
6956                            + " to package " + pkg.packageName
6957                            + " (protectionLevel=" + bp.protectionLevel
6958                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6959                            + ")");
6960                }
6961            }
6962        }
6963
6964        if ((changedPermission || replace) && !ps.permissionsFixed &&
6965                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
6966            // This is the first that we have heard about this package, so the
6967            // permissions we have now selected are fixed until explicitly
6968            // changed.
6969            ps.permissionsFixed = true;
6970        }
6971        ps.haveGids = true;
6972    }
6973
6974    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
6975        boolean allowed = false;
6976        final int NP = PackageParser.NEW_PERMISSIONS.length;
6977        for (int ip=0; ip<NP; ip++) {
6978            final PackageParser.NewPermissionInfo npi
6979                    = PackageParser.NEW_PERMISSIONS[ip];
6980            if (npi.name.equals(perm)
6981                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
6982                allowed = true;
6983                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
6984                        + pkg.packageName);
6985                break;
6986            }
6987        }
6988        return allowed;
6989    }
6990
6991    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
6992                                          BasePermission bp, HashSet<String> origPermissions) {
6993        boolean allowed;
6994        allowed = (compareSignatures(
6995                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
6996                        == PackageManager.SIGNATURE_MATCH)
6997                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
6998                        == PackageManager.SIGNATURE_MATCH);
6999        if (!allowed && (bp.protectionLevel
7000                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7001            if (isSystemApp(pkg)) {
7002                // For updated system applications, a system permission
7003                // is granted only if it had been defined by the original application.
7004                if (isUpdatedSystemApp(pkg)) {
7005                    final PackageSetting sysPs = mSettings
7006                            .getDisabledSystemPkgLPr(pkg.packageName);
7007                    final GrantedPermissions origGp = sysPs.sharedUser != null
7008                            ? sysPs.sharedUser : sysPs;
7009
7010                    if (origGp.grantedPermissions.contains(perm)) {
7011                        // If the original was granted this permission, we take
7012                        // that grant decision as read and propagate it to the
7013                        // update.
7014                        allowed = true;
7015                    } else {
7016                        // The system apk may have been updated with an older
7017                        // version of the one on the data partition, but which
7018                        // granted a new system permission that it didn't have
7019                        // before.  In this case we do want to allow the app to
7020                        // now get the new permission if the ancestral apk is
7021                        // privileged to get it.
7022                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7023                            for (int j=0;
7024                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7025                                if (perm.equals(
7026                                        sysPs.pkg.requestedPermissions.get(j))) {
7027                                    allowed = true;
7028                                    break;
7029                                }
7030                            }
7031                        }
7032                    }
7033                } else {
7034                    allowed = isPrivilegedApp(pkg);
7035                }
7036            }
7037        }
7038        if (!allowed && (bp.protectionLevel
7039                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7040            // For development permissions, a development permission
7041            // is granted only if it was already granted.
7042            allowed = origPermissions.contains(perm);
7043        }
7044        return allowed;
7045    }
7046
7047    final class ActivityIntentResolver
7048            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7049        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7050                boolean defaultOnly, int userId) {
7051            if (!sUserManager.exists(userId)) return null;
7052            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7053            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7054        }
7055
7056        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7057                int userId) {
7058            if (!sUserManager.exists(userId)) return null;
7059            mFlags = flags;
7060            return super.queryIntent(intent, resolvedType,
7061                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7062        }
7063
7064        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7065                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7066            if (!sUserManager.exists(userId)) return null;
7067            if (packageActivities == null) {
7068                return null;
7069            }
7070            mFlags = flags;
7071            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7072            final int N = packageActivities.size();
7073            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7074                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7075
7076            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7077            for (int i = 0; i < N; ++i) {
7078                intentFilters = packageActivities.get(i).intents;
7079                if (intentFilters != null && intentFilters.size() > 0) {
7080                    PackageParser.ActivityIntentInfo[] array =
7081                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7082                    intentFilters.toArray(array);
7083                    listCut.add(array);
7084                }
7085            }
7086            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7087        }
7088
7089        public final void addActivity(PackageParser.Activity a, String type) {
7090            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7091            mActivities.put(a.getComponentName(), a);
7092            if (DEBUG_SHOW_INFO)
7093                Log.v(
7094                TAG, "  " + type + " " +
7095                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7096            if (DEBUG_SHOW_INFO)
7097                Log.v(TAG, "    Class=" + a.info.name);
7098            final int NI = a.intents.size();
7099            for (int j=0; j<NI; j++) {
7100                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7101                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7102                    intent.setPriority(0);
7103                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7104                            + a.className + " with priority > 0, forcing to 0");
7105                }
7106                if (DEBUG_SHOW_INFO) {
7107                    Log.v(TAG, "    IntentFilter:");
7108                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7109                }
7110                if (!intent.debugCheck()) {
7111                    Log.w(TAG, "==> For Activity " + a.info.name);
7112                }
7113                addFilter(intent);
7114            }
7115        }
7116
7117        public final void removeActivity(PackageParser.Activity a, String type) {
7118            mActivities.remove(a.getComponentName());
7119            if (DEBUG_SHOW_INFO) {
7120                Log.v(TAG, "  " + type + " "
7121                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7122                                : a.info.name) + ":");
7123                Log.v(TAG, "    Class=" + a.info.name);
7124            }
7125            final int NI = a.intents.size();
7126            for (int j=0; j<NI; j++) {
7127                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7128                if (DEBUG_SHOW_INFO) {
7129                    Log.v(TAG, "    IntentFilter:");
7130                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7131                }
7132                removeFilter(intent);
7133            }
7134        }
7135
7136        @Override
7137        protected boolean allowFilterResult(
7138                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7139            ActivityInfo filterAi = filter.activity.info;
7140            for (int i=dest.size()-1; i>=0; i--) {
7141                ActivityInfo destAi = dest.get(i).activityInfo;
7142                if (destAi.name == filterAi.name
7143                        && destAi.packageName == filterAi.packageName) {
7144                    return false;
7145                }
7146            }
7147            return true;
7148        }
7149
7150        @Override
7151        protected ActivityIntentInfo[] newArray(int size) {
7152            return new ActivityIntentInfo[size];
7153        }
7154
7155        @Override
7156        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7157            if (!sUserManager.exists(userId)) return true;
7158            PackageParser.Package p = filter.activity.owner;
7159            if (p != null) {
7160                PackageSetting ps = (PackageSetting)p.mExtras;
7161                if (ps != null) {
7162                    // System apps are never considered stopped for purposes of
7163                    // filtering, because there may be no way for the user to
7164                    // actually re-launch them.
7165                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7166                            && ps.getStopped(userId);
7167                }
7168            }
7169            return false;
7170        }
7171
7172        @Override
7173        protected boolean isPackageForFilter(String packageName,
7174                PackageParser.ActivityIntentInfo info) {
7175            return packageName.equals(info.activity.owner.packageName);
7176        }
7177
7178        @Override
7179        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7180                int match, int userId) {
7181            if (!sUserManager.exists(userId)) return null;
7182            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7183                return null;
7184            }
7185            final PackageParser.Activity activity = info.activity;
7186            if (mSafeMode && (activity.info.applicationInfo.flags
7187                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7188                return null;
7189            }
7190            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7191            if (ps == null) {
7192                return null;
7193            }
7194            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7195                    ps.readUserState(userId), userId);
7196            if (ai == null) {
7197                return null;
7198            }
7199            final ResolveInfo res = new ResolveInfo();
7200            res.activityInfo = ai;
7201            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7202                res.filter = info;
7203            }
7204            res.priority = info.getPriority();
7205            res.preferredOrder = activity.owner.mPreferredOrder;
7206            //System.out.println("Result: " + res.activityInfo.className +
7207            //                   " = " + res.priority);
7208            res.match = match;
7209            res.isDefault = info.hasDefault;
7210            res.labelRes = info.labelRes;
7211            res.nonLocalizedLabel = info.nonLocalizedLabel;
7212            if (userNeedsBadging(userId)) {
7213                res.noResourceId = true;
7214            } else {
7215                res.icon = info.icon;
7216            }
7217            res.system = isSystemApp(res.activityInfo.applicationInfo);
7218            return res;
7219        }
7220
7221        @Override
7222        protected void sortResults(List<ResolveInfo> results) {
7223            Collections.sort(results, mResolvePrioritySorter);
7224        }
7225
7226        @Override
7227        protected void dumpFilter(PrintWriter out, String prefix,
7228                PackageParser.ActivityIntentInfo filter) {
7229            out.print(prefix); out.print(
7230                    Integer.toHexString(System.identityHashCode(filter.activity)));
7231                    out.print(' ');
7232                    filter.activity.printComponentShortName(out);
7233                    out.print(" filter ");
7234                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7235        }
7236
7237//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7238//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7239//            final List<ResolveInfo> retList = Lists.newArrayList();
7240//            while (i.hasNext()) {
7241//                final ResolveInfo resolveInfo = i.next();
7242//                if (isEnabledLP(resolveInfo.activityInfo)) {
7243//                    retList.add(resolveInfo);
7244//                }
7245//            }
7246//            return retList;
7247//        }
7248
7249        // Keys are String (activity class name), values are Activity.
7250        private final HashMap<ComponentName, PackageParser.Activity> mActivities
7251                = new HashMap<ComponentName, PackageParser.Activity>();
7252        private int mFlags;
7253    }
7254
7255    private final class ServiceIntentResolver
7256            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7257        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7258                boolean defaultOnly, int userId) {
7259            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7260            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7261        }
7262
7263        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7264                int userId) {
7265            if (!sUserManager.exists(userId)) return null;
7266            mFlags = flags;
7267            return super.queryIntent(intent, resolvedType,
7268                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7269        }
7270
7271        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7272                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7273            if (!sUserManager.exists(userId)) return null;
7274            if (packageServices == null) {
7275                return null;
7276            }
7277            mFlags = flags;
7278            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7279            final int N = packageServices.size();
7280            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7281                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7282
7283            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7284            for (int i = 0; i < N; ++i) {
7285                intentFilters = packageServices.get(i).intents;
7286                if (intentFilters != null && intentFilters.size() > 0) {
7287                    PackageParser.ServiceIntentInfo[] array =
7288                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7289                    intentFilters.toArray(array);
7290                    listCut.add(array);
7291                }
7292            }
7293            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7294        }
7295
7296        public final void addService(PackageParser.Service s) {
7297            mServices.put(s.getComponentName(), s);
7298            if (DEBUG_SHOW_INFO) {
7299                Log.v(TAG, "  "
7300                        + (s.info.nonLocalizedLabel != null
7301                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7302                Log.v(TAG, "    Class=" + s.info.name);
7303            }
7304            final int NI = s.intents.size();
7305            int j;
7306            for (j=0; j<NI; j++) {
7307                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7308                if (DEBUG_SHOW_INFO) {
7309                    Log.v(TAG, "    IntentFilter:");
7310                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7311                }
7312                if (!intent.debugCheck()) {
7313                    Log.w(TAG, "==> For Service " + s.info.name);
7314                }
7315                addFilter(intent);
7316            }
7317        }
7318
7319        public final void removeService(PackageParser.Service s) {
7320            mServices.remove(s.getComponentName());
7321            if (DEBUG_SHOW_INFO) {
7322                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7323                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7324                Log.v(TAG, "    Class=" + s.info.name);
7325            }
7326            final int NI = s.intents.size();
7327            int j;
7328            for (j=0; j<NI; j++) {
7329                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7330                if (DEBUG_SHOW_INFO) {
7331                    Log.v(TAG, "    IntentFilter:");
7332                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7333                }
7334                removeFilter(intent);
7335            }
7336        }
7337
7338        @Override
7339        protected boolean allowFilterResult(
7340                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7341            ServiceInfo filterSi = filter.service.info;
7342            for (int i=dest.size()-1; i>=0; i--) {
7343                ServiceInfo destAi = dest.get(i).serviceInfo;
7344                if (destAi.name == filterSi.name
7345                        && destAi.packageName == filterSi.packageName) {
7346                    return false;
7347                }
7348            }
7349            return true;
7350        }
7351
7352        @Override
7353        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7354            return new PackageParser.ServiceIntentInfo[size];
7355        }
7356
7357        @Override
7358        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7359            if (!sUserManager.exists(userId)) return true;
7360            PackageParser.Package p = filter.service.owner;
7361            if (p != null) {
7362                PackageSetting ps = (PackageSetting)p.mExtras;
7363                if (ps != null) {
7364                    // System apps are never considered stopped for purposes of
7365                    // filtering, because there may be no way for the user to
7366                    // actually re-launch them.
7367                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7368                            && ps.getStopped(userId);
7369                }
7370            }
7371            return false;
7372        }
7373
7374        @Override
7375        protected boolean isPackageForFilter(String packageName,
7376                PackageParser.ServiceIntentInfo info) {
7377            return packageName.equals(info.service.owner.packageName);
7378        }
7379
7380        @Override
7381        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7382                int match, int userId) {
7383            if (!sUserManager.exists(userId)) return null;
7384            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7385            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7386                return null;
7387            }
7388            final PackageParser.Service service = info.service;
7389            if (mSafeMode && (service.info.applicationInfo.flags
7390                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7391                return null;
7392            }
7393            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7394            if (ps == null) {
7395                return null;
7396            }
7397            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7398                    ps.readUserState(userId), userId);
7399            if (si == null) {
7400                return null;
7401            }
7402            final ResolveInfo res = new ResolveInfo();
7403            res.serviceInfo = si;
7404            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7405                res.filter = filter;
7406            }
7407            res.priority = info.getPriority();
7408            res.preferredOrder = service.owner.mPreferredOrder;
7409            //System.out.println("Result: " + res.activityInfo.className +
7410            //                   " = " + res.priority);
7411            res.match = match;
7412            res.isDefault = info.hasDefault;
7413            res.labelRes = info.labelRes;
7414            res.nonLocalizedLabel = info.nonLocalizedLabel;
7415            res.icon = info.icon;
7416            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7417            return res;
7418        }
7419
7420        @Override
7421        protected void sortResults(List<ResolveInfo> results) {
7422            Collections.sort(results, mResolvePrioritySorter);
7423        }
7424
7425        @Override
7426        protected void dumpFilter(PrintWriter out, String prefix,
7427                PackageParser.ServiceIntentInfo filter) {
7428            out.print(prefix); out.print(
7429                    Integer.toHexString(System.identityHashCode(filter.service)));
7430                    out.print(' ');
7431                    filter.service.printComponentShortName(out);
7432                    out.print(" filter ");
7433                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7434        }
7435
7436//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7437//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7438//            final List<ResolveInfo> retList = Lists.newArrayList();
7439//            while (i.hasNext()) {
7440//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7441//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7442//                    retList.add(resolveInfo);
7443//                }
7444//            }
7445//            return retList;
7446//        }
7447
7448        // Keys are String (activity class name), values are Activity.
7449        private final HashMap<ComponentName, PackageParser.Service> mServices
7450                = new HashMap<ComponentName, PackageParser.Service>();
7451        private int mFlags;
7452    };
7453
7454    private final class ProviderIntentResolver
7455            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7456        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7457                boolean defaultOnly, int userId) {
7458            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7459            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7460        }
7461
7462        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7463                int userId) {
7464            if (!sUserManager.exists(userId))
7465                return null;
7466            mFlags = flags;
7467            return super.queryIntent(intent, resolvedType,
7468                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7469        }
7470
7471        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7472                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7473            if (!sUserManager.exists(userId))
7474                return null;
7475            if (packageProviders == null) {
7476                return null;
7477            }
7478            mFlags = flags;
7479            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7480            final int N = packageProviders.size();
7481            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7482                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7483
7484            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7485            for (int i = 0; i < N; ++i) {
7486                intentFilters = packageProviders.get(i).intents;
7487                if (intentFilters != null && intentFilters.size() > 0) {
7488                    PackageParser.ProviderIntentInfo[] array =
7489                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7490                    intentFilters.toArray(array);
7491                    listCut.add(array);
7492                }
7493            }
7494            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7495        }
7496
7497        public final void addProvider(PackageParser.Provider p) {
7498            if (mProviders.containsKey(p.getComponentName())) {
7499                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7500                return;
7501            }
7502
7503            mProviders.put(p.getComponentName(), p);
7504            if (DEBUG_SHOW_INFO) {
7505                Log.v(TAG, "  "
7506                        + (p.info.nonLocalizedLabel != null
7507                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7508                Log.v(TAG, "    Class=" + p.info.name);
7509            }
7510            final int NI = p.intents.size();
7511            int j;
7512            for (j = 0; j < NI; j++) {
7513                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7514                if (DEBUG_SHOW_INFO) {
7515                    Log.v(TAG, "    IntentFilter:");
7516                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7517                }
7518                if (!intent.debugCheck()) {
7519                    Log.w(TAG, "==> For Provider " + p.info.name);
7520                }
7521                addFilter(intent);
7522            }
7523        }
7524
7525        public final void removeProvider(PackageParser.Provider p) {
7526            mProviders.remove(p.getComponentName());
7527            if (DEBUG_SHOW_INFO) {
7528                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7529                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7530                Log.v(TAG, "    Class=" + p.info.name);
7531            }
7532            final int NI = p.intents.size();
7533            int j;
7534            for (j = 0; j < NI; j++) {
7535                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7536                if (DEBUG_SHOW_INFO) {
7537                    Log.v(TAG, "    IntentFilter:");
7538                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7539                }
7540                removeFilter(intent);
7541            }
7542        }
7543
7544        @Override
7545        protected boolean allowFilterResult(
7546                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7547            ProviderInfo filterPi = filter.provider.info;
7548            for (int i = dest.size() - 1; i >= 0; i--) {
7549                ProviderInfo destPi = dest.get(i).providerInfo;
7550                if (destPi.name == filterPi.name
7551                        && destPi.packageName == filterPi.packageName) {
7552                    return false;
7553                }
7554            }
7555            return true;
7556        }
7557
7558        @Override
7559        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7560            return new PackageParser.ProviderIntentInfo[size];
7561        }
7562
7563        @Override
7564        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7565            if (!sUserManager.exists(userId))
7566                return true;
7567            PackageParser.Package p = filter.provider.owner;
7568            if (p != null) {
7569                PackageSetting ps = (PackageSetting) p.mExtras;
7570                if (ps != null) {
7571                    // System apps are never considered stopped for purposes of
7572                    // filtering, because there may be no way for the user to
7573                    // actually re-launch them.
7574                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7575                            && ps.getStopped(userId);
7576                }
7577            }
7578            return false;
7579        }
7580
7581        @Override
7582        protected boolean isPackageForFilter(String packageName,
7583                PackageParser.ProviderIntentInfo info) {
7584            return packageName.equals(info.provider.owner.packageName);
7585        }
7586
7587        @Override
7588        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7589                int match, int userId) {
7590            if (!sUserManager.exists(userId))
7591                return null;
7592            final PackageParser.ProviderIntentInfo info = filter;
7593            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7594                return null;
7595            }
7596            final PackageParser.Provider provider = info.provider;
7597            if (mSafeMode && (provider.info.applicationInfo.flags
7598                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7599                return null;
7600            }
7601            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7602            if (ps == null) {
7603                return null;
7604            }
7605            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7606                    ps.readUserState(userId), userId);
7607            if (pi == null) {
7608                return null;
7609            }
7610            final ResolveInfo res = new ResolveInfo();
7611            res.providerInfo = pi;
7612            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7613                res.filter = filter;
7614            }
7615            res.priority = info.getPriority();
7616            res.preferredOrder = provider.owner.mPreferredOrder;
7617            res.match = match;
7618            res.isDefault = info.hasDefault;
7619            res.labelRes = info.labelRes;
7620            res.nonLocalizedLabel = info.nonLocalizedLabel;
7621            res.icon = info.icon;
7622            res.system = isSystemApp(res.providerInfo.applicationInfo);
7623            return res;
7624        }
7625
7626        @Override
7627        protected void sortResults(List<ResolveInfo> results) {
7628            Collections.sort(results, mResolvePrioritySorter);
7629        }
7630
7631        @Override
7632        protected void dumpFilter(PrintWriter out, String prefix,
7633                PackageParser.ProviderIntentInfo filter) {
7634            out.print(prefix);
7635            out.print(
7636                    Integer.toHexString(System.identityHashCode(filter.provider)));
7637            out.print(' ');
7638            filter.provider.printComponentShortName(out);
7639            out.print(" filter ");
7640            out.println(Integer.toHexString(System.identityHashCode(filter)));
7641        }
7642
7643        private final HashMap<ComponentName, PackageParser.Provider> mProviders
7644                = new HashMap<ComponentName, PackageParser.Provider>();
7645        private int mFlags;
7646    };
7647
7648    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7649            new Comparator<ResolveInfo>() {
7650        public int compare(ResolveInfo r1, ResolveInfo r2) {
7651            int v1 = r1.priority;
7652            int v2 = r2.priority;
7653            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7654            if (v1 != v2) {
7655                return (v1 > v2) ? -1 : 1;
7656            }
7657            v1 = r1.preferredOrder;
7658            v2 = r2.preferredOrder;
7659            if (v1 != v2) {
7660                return (v1 > v2) ? -1 : 1;
7661            }
7662            if (r1.isDefault != r2.isDefault) {
7663                return r1.isDefault ? -1 : 1;
7664            }
7665            v1 = r1.match;
7666            v2 = r2.match;
7667            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7668            if (v1 != v2) {
7669                return (v1 > v2) ? -1 : 1;
7670            }
7671            if (r1.system != r2.system) {
7672                return r1.system ? -1 : 1;
7673            }
7674            return 0;
7675        }
7676    };
7677
7678    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7679            new Comparator<ProviderInfo>() {
7680        public int compare(ProviderInfo p1, ProviderInfo p2) {
7681            final int v1 = p1.initOrder;
7682            final int v2 = p2.initOrder;
7683            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7684        }
7685    };
7686
7687    static final void sendPackageBroadcast(String action, String pkg,
7688            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7689            int[] userIds) {
7690        IActivityManager am = ActivityManagerNative.getDefault();
7691        if (am != null) {
7692            try {
7693                if (userIds == null) {
7694                    userIds = am.getRunningUserIds();
7695                }
7696                for (int id : userIds) {
7697                    final Intent intent = new Intent(action,
7698                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7699                    if (extras != null) {
7700                        intent.putExtras(extras);
7701                    }
7702                    if (targetPkg != null) {
7703                        intent.setPackage(targetPkg);
7704                    }
7705                    // Modify the UID when posting to other users
7706                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7707                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7708                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7709                        intent.putExtra(Intent.EXTRA_UID, uid);
7710                    }
7711                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7712                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7713                    if (DEBUG_BROADCASTS) {
7714                        RuntimeException here = new RuntimeException("here");
7715                        here.fillInStackTrace();
7716                        Slog.d(TAG, "Sending to user " + id + ": "
7717                                + intent.toShortString(false, true, false, false)
7718                                + " " + intent.getExtras(), here);
7719                    }
7720                    am.broadcastIntent(null, intent, null, finishedReceiver,
7721                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7722                            finishedReceiver != null, false, id);
7723                }
7724            } catch (RemoteException ex) {
7725            }
7726        }
7727    }
7728
7729    /**
7730     * Check if the external storage media is available. This is true if there
7731     * is a mounted external storage medium or if the external storage is
7732     * emulated.
7733     */
7734    private boolean isExternalMediaAvailable() {
7735        return mMediaMounted || Environment.isExternalStorageEmulated();
7736    }
7737
7738    @Override
7739    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7740        // writer
7741        synchronized (mPackages) {
7742            if (!isExternalMediaAvailable()) {
7743                // If the external storage is no longer mounted at this point,
7744                // the caller may not have been able to delete all of this
7745                // packages files and can not delete any more.  Bail.
7746                return null;
7747            }
7748            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7749            if (lastPackage != null) {
7750                pkgs.remove(lastPackage);
7751            }
7752            if (pkgs.size() > 0) {
7753                return pkgs.get(0);
7754            }
7755        }
7756        return null;
7757    }
7758
7759    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7760        if (false) {
7761            RuntimeException here = new RuntimeException("here");
7762            here.fillInStackTrace();
7763            Slog.d(TAG, "Schedule cleaning " + packageName + " user=" + userId
7764                    + " andCode=" + andCode, here);
7765        }
7766        mHandler.sendMessage(mHandler.obtainMessage(START_CLEANING_PACKAGE,
7767                userId, andCode ? 1 : 0, packageName));
7768    }
7769
7770    void startCleaningPackages() {
7771        // reader
7772        synchronized (mPackages) {
7773            if (!isExternalMediaAvailable()) {
7774                return;
7775            }
7776            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7777                return;
7778            }
7779        }
7780        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7781        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7782        IActivityManager am = ActivityManagerNative.getDefault();
7783        if (am != null) {
7784            try {
7785                am.startService(null, intent, null, UserHandle.USER_OWNER);
7786            } catch (RemoteException e) {
7787            }
7788        }
7789    }
7790
7791    @Override
7792    public void installPackage(String originPath, IPackageInstallObserver2 observer, int flags,
7793            String installerPackageName, VerificationParams verificationParams,
7794            String packageAbiOverride) {
7795        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
7796                null);
7797
7798        final File originFile = new File(originPath);
7799        final int uid = Binder.getCallingUid();
7800        if (isUserRestricted(UserHandle.getUserId(uid), UserManager.DISALLOW_INSTALL_APPS)) {
7801            try {
7802                if (observer != null) {
7803                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7804                }
7805            } catch (RemoteException re) {
7806            }
7807            return;
7808        }
7809
7810        UserHandle user;
7811        if ((flags&PackageManager.INSTALL_ALL_USERS) != 0) {
7812            user = UserHandle.ALL;
7813        } else {
7814            user = new UserHandle(UserHandle.getUserId(uid));
7815        }
7816
7817        final int filteredFlags;
7818        if (uid == Process.SHELL_UID || uid == 0) {
7819            if (DEBUG_INSTALL) {
7820                Slog.v(TAG, "Install from ADB");
7821            }
7822            filteredFlags = flags | PackageManager.INSTALL_FROM_ADB;
7823        } else {
7824            filteredFlags = flags & ~PackageManager.INSTALL_FROM_ADB;
7825        }
7826
7827        verificationParams.setInstallerUid(uid);
7828
7829        final Message msg = mHandler.obtainMessage(INIT_COPY);
7830        msg.obj = new InstallParams(originFile, false, observer, filteredFlags,
7831                installerPackageName, verificationParams, user, packageAbiOverride);
7832        mHandler.sendMessage(msg);
7833    }
7834
7835    void installStage(String packageName, File stageDir, IPackageInstallObserver2 observer,
7836            InstallSessionParams params, String installerPackageName, int installerUid,
7837            UserHandle user) {
7838        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7839                params.referrerUri, installerUid, null);
7840
7841        final Message msg = mHandler.obtainMessage(INIT_COPY);
7842        msg.obj = new InstallParams(stageDir, true, observer, params.installFlags,
7843                installerPackageName, verifParams, user, params.abiOverride);
7844        mHandler.sendMessage(msg);
7845    }
7846
7847    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7848        Bundle extras = new Bundle(1);
7849        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7850
7851        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7852                packageName, extras, null, null, new int[] {userId});
7853        try {
7854            IActivityManager am = ActivityManagerNative.getDefault();
7855            final boolean isSystem =
7856                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7857            if (isSystem && am.isUserRunning(userId, false)) {
7858                // The just-installed/enabled app is bundled on the system, so presumed
7859                // to be able to run automatically without needing an explicit launch.
7860                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7861                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7862                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7863                        .setPackage(packageName);
7864                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7865                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7866            }
7867        } catch (RemoteException e) {
7868            // shouldn't happen
7869            Slog.w(TAG, "Unable to bootstrap installed package", e);
7870        }
7871    }
7872
7873    @Override
7874    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7875            int userId) {
7876        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7877        PackageSetting pkgSetting;
7878        final int uid = Binder.getCallingUid();
7879        if (UserHandle.getUserId(uid) != userId) {
7880            mContext.enforceCallingOrSelfPermission(
7881                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
7882                    "setApplicationHiddenSetting for user " + userId);
7883        }
7884
7885        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
7886            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
7887            return false;
7888        }
7889
7890        long callingId = Binder.clearCallingIdentity();
7891        try {
7892            boolean sendAdded = false;
7893            boolean sendRemoved = false;
7894            // writer
7895            synchronized (mPackages) {
7896                pkgSetting = mSettings.mPackages.get(packageName);
7897                if (pkgSetting == null) {
7898                    return false;
7899                }
7900                if (pkgSetting.getHidden(userId) != hidden) {
7901                    pkgSetting.setHidden(hidden, userId);
7902                    mSettings.writePackageRestrictionsLPr(userId);
7903                    if (hidden) {
7904                        sendRemoved = true;
7905                    } else {
7906                        sendAdded = true;
7907                    }
7908                }
7909            }
7910            if (sendAdded) {
7911                sendPackageAddedForUser(packageName, pkgSetting, userId);
7912                return true;
7913            }
7914            if (sendRemoved) {
7915                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
7916                        "hiding pkg");
7917                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
7918            }
7919        } finally {
7920            Binder.restoreCallingIdentity(callingId);
7921        }
7922        return false;
7923    }
7924
7925    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
7926            int userId) {
7927        final PackageRemovedInfo info = new PackageRemovedInfo();
7928        info.removedPackage = packageName;
7929        info.removedUsers = new int[] {userId};
7930        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
7931        info.sendBroadcast(false, false, false);
7932    }
7933
7934    /**
7935     * Returns true if application is not found or there was an error. Otherwise it returns
7936     * the hidden state of the package for the given user.
7937     */
7938    @Override
7939    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
7940        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7941        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
7942                "getApplicationHidden for user " + userId);
7943        PackageSetting pkgSetting;
7944        long callingId = Binder.clearCallingIdentity();
7945        try {
7946            // writer
7947            synchronized (mPackages) {
7948                pkgSetting = mSettings.mPackages.get(packageName);
7949                if (pkgSetting == null) {
7950                    return true;
7951                }
7952                return pkgSetting.getHidden(userId);
7953            }
7954        } finally {
7955            Binder.restoreCallingIdentity(callingId);
7956        }
7957    }
7958
7959    /**
7960     * @hide
7961     */
7962    @Override
7963    public int installExistingPackageAsUser(String packageName, int userId) {
7964        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
7965                null);
7966        PackageSetting pkgSetting;
7967        final int uid = Binder.getCallingUid();
7968        enforceCrossUserPermission(uid, userId, true, "installExistingPackage for user " + userId);
7969        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7970            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
7971        }
7972
7973        long callingId = Binder.clearCallingIdentity();
7974        try {
7975            boolean sendAdded = false;
7976            Bundle extras = new Bundle(1);
7977
7978            // writer
7979            synchronized (mPackages) {
7980                pkgSetting = mSettings.mPackages.get(packageName);
7981                if (pkgSetting == null) {
7982                    return PackageManager.INSTALL_FAILED_INVALID_URI;
7983                }
7984                if (!pkgSetting.getInstalled(userId)) {
7985                    pkgSetting.setInstalled(true, userId);
7986                    pkgSetting.setHidden(false, userId);
7987                    mSettings.writePackageRestrictionsLPr(userId);
7988                    sendAdded = true;
7989                }
7990            }
7991
7992            if (sendAdded) {
7993                sendPackageAddedForUser(packageName, pkgSetting, userId);
7994            }
7995        } finally {
7996            Binder.restoreCallingIdentity(callingId);
7997        }
7998
7999        return PackageManager.INSTALL_SUCCEEDED;
8000    }
8001
8002    boolean isUserRestricted(int userId, String restrictionKey) {
8003        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8004        if (restrictions.getBoolean(restrictionKey, false)) {
8005            Log.w(TAG, "User is restricted: " + restrictionKey);
8006            return true;
8007        }
8008        return false;
8009    }
8010
8011    @Override
8012    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8013        mContext.enforceCallingOrSelfPermission(
8014                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8015                "Only package verification agents can verify applications");
8016
8017        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8018        final PackageVerificationResponse response = new PackageVerificationResponse(
8019                verificationCode, Binder.getCallingUid());
8020        msg.arg1 = id;
8021        msg.obj = response;
8022        mHandler.sendMessage(msg);
8023    }
8024
8025    @Override
8026    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8027            long millisecondsToDelay) {
8028        mContext.enforceCallingOrSelfPermission(
8029                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8030                "Only package verification agents can extend verification timeouts");
8031
8032        final PackageVerificationState state = mPendingVerification.get(id);
8033        final PackageVerificationResponse response = new PackageVerificationResponse(
8034                verificationCodeAtTimeout, Binder.getCallingUid());
8035
8036        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8037            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8038        }
8039        if (millisecondsToDelay < 0) {
8040            millisecondsToDelay = 0;
8041        }
8042        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8043                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8044            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8045        }
8046
8047        if ((state != null) && !state.timeoutExtended()) {
8048            state.extendTimeout();
8049
8050            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8051            msg.arg1 = id;
8052            msg.obj = response;
8053            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8054        }
8055    }
8056
8057    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8058            int verificationCode, UserHandle user) {
8059        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8060        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8061        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8062        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8063        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8064
8065        mContext.sendBroadcastAsUser(intent, user,
8066                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8067    }
8068
8069    private ComponentName matchComponentForVerifier(String packageName,
8070            List<ResolveInfo> receivers) {
8071        ActivityInfo targetReceiver = null;
8072
8073        final int NR = receivers.size();
8074        for (int i = 0; i < NR; i++) {
8075            final ResolveInfo info = receivers.get(i);
8076            if (info.activityInfo == null) {
8077                continue;
8078            }
8079
8080            if (packageName.equals(info.activityInfo.packageName)) {
8081                targetReceiver = info.activityInfo;
8082                break;
8083            }
8084        }
8085
8086        if (targetReceiver == null) {
8087            return null;
8088        }
8089
8090        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8091    }
8092
8093    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8094            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8095        if (pkgInfo.verifiers.length == 0) {
8096            return null;
8097        }
8098
8099        final int N = pkgInfo.verifiers.length;
8100        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8101        for (int i = 0; i < N; i++) {
8102            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8103
8104            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8105                    receivers);
8106            if (comp == null) {
8107                continue;
8108            }
8109
8110            final int verifierUid = getUidForVerifier(verifierInfo);
8111            if (verifierUid == -1) {
8112                continue;
8113            }
8114
8115            if (DEBUG_VERIFY) {
8116                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8117                        + " with the correct signature");
8118            }
8119            sufficientVerifiers.add(comp);
8120            verificationState.addSufficientVerifier(verifierUid);
8121        }
8122
8123        return sufficientVerifiers;
8124    }
8125
8126    private int getUidForVerifier(VerifierInfo verifierInfo) {
8127        synchronized (mPackages) {
8128            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8129            if (pkg == null) {
8130                return -1;
8131            } else if (pkg.mSignatures.length != 1) {
8132                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8133                        + " has more than one signature; ignoring");
8134                return -1;
8135            }
8136
8137            /*
8138             * If the public key of the package's signature does not match
8139             * our expected public key, then this is a different package and
8140             * we should skip.
8141             */
8142
8143            final byte[] expectedPublicKey;
8144            try {
8145                final Signature verifierSig = pkg.mSignatures[0];
8146                final PublicKey publicKey = verifierSig.getPublicKey();
8147                expectedPublicKey = publicKey.getEncoded();
8148            } catch (CertificateException e) {
8149                return -1;
8150            }
8151
8152            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8153
8154            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8155                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8156                        + " does not have the expected public key; ignoring");
8157                return -1;
8158            }
8159
8160            return pkg.applicationInfo.uid;
8161        }
8162    }
8163
8164    @Override
8165    public void finishPackageInstall(int token) {
8166        enforceSystemOrRoot("Only the system is allowed to finish installs");
8167
8168        if (DEBUG_INSTALL) {
8169            Slog.v(TAG, "BM finishing package install for " + token);
8170        }
8171
8172        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8173        mHandler.sendMessage(msg);
8174    }
8175
8176    /**
8177     * Get the verification agent timeout.
8178     *
8179     * @return verification timeout in milliseconds
8180     */
8181    private long getVerificationTimeout() {
8182        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8183                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8184                DEFAULT_VERIFICATION_TIMEOUT);
8185    }
8186
8187    /**
8188     * Get the default verification agent response code.
8189     *
8190     * @return default verification response code
8191     */
8192    private int getDefaultVerificationResponse() {
8193        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8194                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8195                DEFAULT_VERIFICATION_RESPONSE);
8196    }
8197
8198    /**
8199     * Check whether or not package verification has been enabled.
8200     *
8201     * @return true if verification should be performed
8202     */
8203    private boolean isVerificationEnabled(int userId, int flags) {
8204        if (!DEFAULT_VERIFY_ENABLE) {
8205            return false;
8206        }
8207
8208        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8209
8210        // Check if installing from ADB
8211        if ((flags & PackageManager.INSTALL_FROM_ADB) != 0) {
8212            // Do not run verification in a test harness environment
8213            if (ActivityManager.isRunningInTestHarness()) {
8214                return false;
8215            }
8216            if (ensureVerifyAppsEnabled) {
8217                return true;
8218            }
8219            // Check if the developer does not want package verification for ADB installs
8220            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8221                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8222                return false;
8223            }
8224        }
8225
8226        if (ensureVerifyAppsEnabled) {
8227            return true;
8228        }
8229
8230        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8231                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8232    }
8233
8234    /**
8235     * Get the "allow unknown sources" setting.
8236     *
8237     * @return the current "allow unknown sources" setting
8238     */
8239    private int getUnknownSourcesSettings() {
8240        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8241                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8242                -1);
8243    }
8244
8245    @Override
8246    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8247        final int uid = Binder.getCallingUid();
8248        // writer
8249        synchronized (mPackages) {
8250            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8251            if (targetPackageSetting == null) {
8252                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8253            }
8254
8255            PackageSetting installerPackageSetting;
8256            if (installerPackageName != null) {
8257                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8258                if (installerPackageSetting == null) {
8259                    throw new IllegalArgumentException("Unknown installer package: "
8260                            + installerPackageName);
8261                }
8262            } else {
8263                installerPackageSetting = null;
8264            }
8265
8266            Signature[] callerSignature;
8267            Object obj = mSettings.getUserIdLPr(uid);
8268            if (obj != null) {
8269                if (obj instanceof SharedUserSetting) {
8270                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8271                } else if (obj instanceof PackageSetting) {
8272                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8273                } else {
8274                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8275                }
8276            } else {
8277                throw new SecurityException("Unknown calling uid " + uid);
8278            }
8279
8280            // Verify: can't set installerPackageName to a package that is
8281            // not signed with the same cert as the caller.
8282            if (installerPackageSetting != null) {
8283                if (compareSignatures(callerSignature,
8284                        installerPackageSetting.signatures.mSignatures)
8285                        != PackageManager.SIGNATURE_MATCH) {
8286                    throw new SecurityException(
8287                            "Caller does not have same cert as new installer package "
8288                            + installerPackageName);
8289                }
8290            }
8291
8292            // Verify: if target already has an installer package, it must
8293            // be signed with the same cert as the caller.
8294            if (targetPackageSetting.installerPackageName != null) {
8295                PackageSetting setting = mSettings.mPackages.get(
8296                        targetPackageSetting.installerPackageName);
8297                // If the currently set package isn't valid, then it's always
8298                // okay to change it.
8299                if (setting != null) {
8300                    if (compareSignatures(callerSignature,
8301                            setting.signatures.mSignatures)
8302                            != PackageManager.SIGNATURE_MATCH) {
8303                        throw new SecurityException(
8304                                "Caller does not have same cert as old installer package "
8305                                + targetPackageSetting.installerPackageName);
8306                    }
8307                }
8308            }
8309
8310            // Okay!
8311            targetPackageSetting.installerPackageName = installerPackageName;
8312            scheduleWriteSettingsLocked();
8313        }
8314    }
8315
8316    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8317        // Queue up an async operation since the package installation may take a little while.
8318        mHandler.post(new Runnable() {
8319            public void run() {
8320                mHandler.removeCallbacks(this);
8321                 // Result object to be returned
8322                PackageInstalledInfo res = new PackageInstalledInfo();
8323                res.returnCode = currentStatus;
8324                res.uid = -1;
8325                res.pkg = null;
8326                res.removedInfo = new PackageRemovedInfo();
8327                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8328                    args.doPreInstall(res.returnCode);
8329                    synchronized (mInstallLock) {
8330                        installPackageLI(args, true, res);
8331                    }
8332                    args.doPostInstall(res.returnCode, res.uid);
8333                }
8334
8335                // A restore should be performed at this point if (a) the install
8336                // succeeded, (b) the operation is not an update, and (c) the new
8337                // package has not opted out of backup participation.
8338                final boolean update = res.removedInfo.removedPackage != null;
8339                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8340                boolean doRestore = !update
8341                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8342
8343                // Set up the post-install work request bookkeeping.  This will be used
8344                // and cleaned up by the post-install event handling regardless of whether
8345                // there's a restore pass performed.  Token values are >= 1.
8346                int token;
8347                if (mNextInstallToken < 0) mNextInstallToken = 1;
8348                token = mNextInstallToken++;
8349
8350                PostInstallData data = new PostInstallData(args, res);
8351                mRunningInstalls.put(token, data);
8352                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8353
8354                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8355                    // Pass responsibility to the Backup Manager.  It will perform a
8356                    // restore if appropriate, then pass responsibility back to the
8357                    // Package Manager to run the post-install observer callbacks
8358                    // and broadcasts.
8359                    IBackupManager bm = IBackupManager.Stub.asInterface(
8360                            ServiceManager.getService(Context.BACKUP_SERVICE));
8361                    if (bm != null) {
8362                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8363                                + " to BM for possible restore");
8364                        try {
8365                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8366                        } catch (RemoteException e) {
8367                            // can't happen; the backup manager is local
8368                        } catch (Exception e) {
8369                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8370                            doRestore = false;
8371                        }
8372                    } else {
8373                        Slog.e(TAG, "Backup Manager not found!");
8374                        doRestore = false;
8375                    }
8376                }
8377
8378                if (!doRestore) {
8379                    // No restore possible, or the Backup Manager was mysteriously not
8380                    // available -- just fire the post-install work request directly.
8381                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8382                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8383                    mHandler.sendMessage(msg);
8384                }
8385            }
8386        });
8387    }
8388
8389    private abstract class HandlerParams {
8390        private static final int MAX_RETRIES = 4;
8391
8392        /**
8393         * Number of times startCopy() has been attempted and had a non-fatal
8394         * error.
8395         */
8396        private int mRetries = 0;
8397
8398        /** User handle for the user requesting the information or installation. */
8399        private final UserHandle mUser;
8400
8401        HandlerParams(UserHandle user) {
8402            mUser = user;
8403        }
8404
8405        UserHandle getUser() {
8406            return mUser;
8407        }
8408
8409        final boolean startCopy() {
8410            boolean res;
8411            try {
8412                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8413
8414                if (++mRetries > MAX_RETRIES) {
8415                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8416                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8417                    handleServiceError();
8418                    return false;
8419                } else {
8420                    handleStartCopy();
8421                    res = true;
8422                }
8423            } catch (RemoteException e) {
8424                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8425                mHandler.sendEmptyMessage(MCS_RECONNECT);
8426                res = false;
8427            }
8428            handleReturnCode();
8429            return res;
8430        }
8431
8432        final void serviceError() {
8433            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8434            handleServiceError();
8435            handleReturnCode();
8436        }
8437
8438        abstract void handleStartCopy() throws RemoteException;
8439        abstract void handleServiceError();
8440        abstract void handleReturnCode();
8441    }
8442
8443    class MeasureParams extends HandlerParams {
8444        private final PackageStats mStats;
8445        private boolean mSuccess;
8446
8447        private final IPackageStatsObserver mObserver;
8448
8449        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8450            super(new UserHandle(stats.userHandle));
8451            mObserver = observer;
8452            mStats = stats;
8453        }
8454
8455        @Override
8456        public String toString() {
8457            return "MeasureParams{"
8458                + Integer.toHexString(System.identityHashCode(this))
8459                + " " + mStats.packageName + "}";
8460        }
8461
8462        @Override
8463        void handleStartCopy() throws RemoteException {
8464            synchronized (mInstallLock) {
8465                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8466            }
8467
8468            if (mSuccess) {
8469                final boolean mounted;
8470                if (Environment.isExternalStorageEmulated()) {
8471                    mounted = true;
8472                } else {
8473                    final String status = Environment.getExternalStorageState();
8474                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8475                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8476                }
8477
8478                if (mounted) {
8479                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8480
8481                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8482                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8483
8484                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8485                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8486
8487                    // Always subtract cache size, since it's a subdirectory
8488                    mStats.externalDataSize -= mStats.externalCacheSize;
8489
8490                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8491                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8492
8493                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8494                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8495                }
8496            }
8497        }
8498
8499        @Override
8500        void handleReturnCode() {
8501            if (mObserver != null) {
8502                try {
8503                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8504                } catch (RemoteException e) {
8505                    Slog.i(TAG, "Observer no longer exists.");
8506                }
8507            }
8508        }
8509
8510        @Override
8511        void handleServiceError() {
8512            Slog.e(TAG, "Could not measure application " + mStats.packageName
8513                            + " external storage");
8514        }
8515    }
8516
8517    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8518            throws RemoteException {
8519        long result = 0;
8520        for (File path : paths) {
8521            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8522        }
8523        return result;
8524    }
8525
8526    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8527        for (File path : paths) {
8528            try {
8529                mcs.clearDirectory(path.getAbsolutePath());
8530            } catch (RemoteException e) {
8531            }
8532        }
8533    }
8534
8535    class InstallParams extends HandlerParams {
8536        /**
8537         * Location where install is coming from, before it has been
8538         * copied/renamed into place. This could be a single monolithic APK
8539         * file, or a cluster directory. This location may be untrusted.
8540         */
8541        final File originFile;
8542
8543        /**
8544         * Flag indicating that {@link #originFile} has already been staged,
8545         * meaning downstream users don't need to defensively copy the contents.
8546         */
8547        boolean originStaged;
8548
8549        final IPackageInstallObserver2 observer;
8550        int flags;
8551        final String installerPackageName;
8552        final VerificationParams verificationParams;
8553        private InstallArgs mArgs;
8554        private int mRet;
8555        final String packageAbiOverride;
8556        boolean multiArch;
8557
8558        InstallParams(File originFile, boolean originStaged, IPackageInstallObserver2 observer,
8559                int flags, String installerPackageName, VerificationParams verificationParams,
8560                UserHandle user, String packageAbiOverride) {
8561            super(user);
8562            this.originFile = Preconditions.checkNotNull(originFile);
8563            this.originStaged = originStaged;
8564            this.observer = observer;
8565            this.flags = flags;
8566            this.installerPackageName = installerPackageName;
8567            this.verificationParams = verificationParams;
8568            this.packageAbiOverride = packageAbiOverride;
8569        }
8570
8571        @Override
8572        public String toString() {
8573            return "InstallParams{"
8574                + Integer.toHexString(System.identityHashCode(this))
8575                + " " + originFile + "}";
8576        }
8577
8578        public ManifestDigest getManifestDigest() {
8579            if (verificationParams == null) {
8580                return null;
8581            }
8582            return verificationParams.getManifestDigest();
8583        }
8584
8585        private int installLocationPolicy(PackageInfoLite pkgLite, int flags) {
8586            String packageName = pkgLite.packageName;
8587            int installLocation = pkgLite.installLocation;
8588            boolean onSd = (flags & PackageManager.INSTALL_EXTERNAL) != 0;
8589            // reader
8590            synchronized (mPackages) {
8591                PackageParser.Package pkg = mPackages.get(packageName);
8592                if (pkg != null) {
8593                    if ((flags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8594                        // Check for downgrading.
8595                        if ((flags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8596                            if (pkgLite.versionCode < pkg.mVersionCode) {
8597                                Slog.w(TAG, "Can't install update of " + packageName
8598                                        + " update version " + pkgLite.versionCode
8599                                        + " is older than installed version "
8600                                        + pkg.mVersionCode);
8601                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8602                            }
8603                        }
8604                        // Check for updated system application.
8605                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8606                            if (onSd) {
8607                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8608                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8609                            }
8610                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8611                        } else {
8612                            if (onSd) {
8613                                // Install flag overrides everything.
8614                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8615                            }
8616                            // If current upgrade specifies particular preference
8617                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8618                                // Application explicitly specified internal.
8619                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8620                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8621                                // App explictly prefers external. Let policy decide
8622                            } else {
8623                                // Prefer previous location
8624                                if (isExternal(pkg)) {
8625                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8626                                }
8627                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8628                            }
8629                        }
8630                    } else {
8631                        // Invalid install. Return error code
8632                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8633                    }
8634                }
8635            }
8636            // All the special cases have been taken care of.
8637            // Return result based on recommended install location.
8638            if (onSd) {
8639                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8640            }
8641            return pkgLite.recommendedInstallLocation;
8642        }
8643
8644        private long getMemoryLowThreshold() {
8645            final DeviceStorageMonitorInternal
8646                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
8647            if (dsm == null) {
8648                return 0L;
8649            }
8650            return dsm.getMemoryLowThreshold();
8651        }
8652
8653        /*
8654         * Invoke remote method to get package information and install
8655         * location values. Override install location based on default
8656         * policy if needed and then create install arguments based
8657         * on the install location.
8658         */
8659        public void handleStartCopy() throws RemoteException {
8660            int ret = PackageManager.INSTALL_SUCCEEDED;
8661            final boolean onSd = (flags & PackageManager.INSTALL_EXTERNAL) != 0;
8662            final boolean onInt = (flags & PackageManager.INSTALL_INTERNAL) != 0;
8663            PackageInfoLite pkgLite = null;
8664
8665            if (onInt && onSd) {
8666                // Check if both bits are set.
8667                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8668                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8669            } else {
8670                final long lowThreshold = getMemoryLowThreshold();
8671                if (lowThreshold == 0L) {
8672                    Log.w(TAG, "Couldn't get low memory threshold; no free limit imposed");
8673                }
8674
8675                // Remote call to find out default install location
8676                final String originPath = originFile.getAbsolutePath();
8677                pkgLite = mContainerService.getMinimalPackageInfo(originPath, flags, lowThreshold,
8678                        packageAbiOverride);
8679                // Keep track of whether this package is a multiArch package until
8680                // we perform a full scan of it. We need to do this because we might
8681                // end up extracting the package shared libraries before we perform
8682                // a full scan.
8683                multiArch = pkgLite.multiArch;
8684
8685                /*
8686                 * If we have too little free space, try to free cache
8687                 * before giving up.
8688                 */
8689                if (pkgLite.recommendedInstallLocation
8690                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8691                    final long size = mContainerService.calculateInstalledSize(
8692                            originPath, isForwardLocked(), packageAbiOverride);
8693                    if (mInstaller.freeCache(size + lowThreshold) >= 0) {
8694                        pkgLite = mContainerService.getMinimalPackageInfo(originPath, flags,
8695                                lowThreshold, packageAbiOverride);
8696                    }
8697                    /*
8698                     * The cache free must have deleted the file we
8699                     * downloaded to install.
8700                     *
8701                     * TODO: fix the "freeCache" call to not delete
8702                     *       the file we care about.
8703                     */
8704                    if (pkgLite.recommendedInstallLocation
8705                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8706                        pkgLite.recommendedInstallLocation
8707                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8708                    }
8709                }
8710            }
8711
8712            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8713                int loc = pkgLite.recommendedInstallLocation;
8714                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8715                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8716                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8717                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8718                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8719                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8720                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8721                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8722                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8723                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8724                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8725                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8726                } else {
8727                    // Override with defaults if needed.
8728                    loc = installLocationPolicy(pkgLite, flags);
8729                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8730                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8731                    } else if (!onSd && !onInt) {
8732                        // Override install location with flags
8733                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8734                            // Set the flag to install on external media.
8735                            flags |= PackageManager.INSTALL_EXTERNAL;
8736                            flags &= ~PackageManager.INSTALL_INTERNAL;
8737                        } else {
8738                            // Make sure the flag for installing on external
8739                            // media is unset
8740                            flags |= PackageManager.INSTALL_INTERNAL;
8741                            flags &= ~PackageManager.INSTALL_EXTERNAL;
8742                        }
8743                    }
8744                }
8745            }
8746
8747            final InstallArgs args = createInstallArgs(this);
8748            mArgs = args;
8749
8750            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8751                 /*
8752                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8753                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8754                 */
8755                int userIdentifier = getUser().getIdentifier();
8756                if (userIdentifier == UserHandle.USER_ALL
8757                        && ((flags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8758                    userIdentifier = UserHandle.USER_OWNER;
8759                }
8760
8761                /*
8762                 * Determine if we have any installed package verifiers. If we
8763                 * do, then we'll defer to them to verify the packages.
8764                 */
8765                final int requiredUid = mRequiredVerifierPackage == null ? -1
8766                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8767                if (requiredUid != -1 && isVerificationEnabled(userIdentifier, flags)) {
8768                    // TODO: send verifier the install session instead of uri
8769                    final Intent verification = new Intent(
8770                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8771                    verification.setDataAndType(Uri.fromFile(originFile), PACKAGE_MIME_TYPE);
8772                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8773
8774                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8775                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8776                            0 /* TODO: Which userId? */);
8777
8778                    if (DEBUG_VERIFY) {
8779                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8780                                + verification.toString() + " with " + pkgLite.verifiers.length
8781                                + " optional verifiers");
8782                    }
8783
8784                    final int verificationId = mPendingVerificationToken++;
8785
8786                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8787
8788                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8789                            installerPackageName);
8790
8791                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS, flags);
8792
8793                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8794                            pkgLite.packageName);
8795
8796                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8797                            pkgLite.versionCode);
8798
8799                    if (verificationParams != null) {
8800                        if (verificationParams.getVerificationURI() != null) {
8801                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8802                                 verificationParams.getVerificationURI());
8803                        }
8804                        if (verificationParams.getOriginatingURI() != null) {
8805                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8806                                  verificationParams.getOriginatingURI());
8807                        }
8808                        if (verificationParams.getReferrer() != null) {
8809                            verification.putExtra(Intent.EXTRA_REFERRER,
8810                                  verificationParams.getReferrer());
8811                        }
8812                        if (verificationParams.getOriginatingUid() >= 0) {
8813                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8814                                  verificationParams.getOriginatingUid());
8815                        }
8816                        if (verificationParams.getInstallerUid() >= 0) {
8817                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8818                                  verificationParams.getInstallerUid());
8819                        }
8820                    }
8821
8822                    final PackageVerificationState verificationState = new PackageVerificationState(
8823                            requiredUid, args);
8824
8825                    mPendingVerification.append(verificationId, verificationState);
8826
8827                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8828                            receivers, verificationState);
8829
8830                    /*
8831                     * If any sufficient verifiers were listed in the package
8832                     * manifest, attempt to ask them.
8833                     */
8834                    if (sufficientVerifiers != null) {
8835                        final int N = sufficientVerifiers.size();
8836                        if (N == 0) {
8837                            Slog.i(TAG, "Additional verifiers required, but none installed.");
8838                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
8839                        } else {
8840                            for (int i = 0; i < N; i++) {
8841                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
8842
8843                                final Intent sufficientIntent = new Intent(verification);
8844                                sufficientIntent.setComponent(verifierComponent);
8845
8846                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
8847                            }
8848                        }
8849                    }
8850
8851                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
8852                            mRequiredVerifierPackage, receivers);
8853                    if (ret == PackageManager.INSTALL_SUCCEEDED
8854                            && mRequiredVerifierPackage != null) {
8855                        /*
8856                         * Send the intent to the required verification agent,
8857                         * but only start the verification timeout after the
8858                         * target BroadcastReceivers have run.
8859                         */
8860                        verification.setComponent(requiredVerifierComponent);
8861                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
8862                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8863                                new BroadcastReceiver() {
8864                                    @Override
8865                                    public void onReceive(Context context, Intent intent) {
8866                                        final Message msg = mHandler
8867                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
8868                                        msg.arg1 = verificationId;
8869                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
8870                                    }
8871                                }, null, 0, null, null);
8872
8873                        /*
8874                         * We don't want the copy to proceed until verification
8875                         * succeeds, so null out this field.
8876                         */
8877                        mArgs = null;
8878                    }
8879                } else {
8880                    /*
8881                     * No package verification is enabled, so immediately start
8882                     * the remote call to initiate copy using temporary file.
8883                     */
8884                    ret = args.copyApk(mContainerService, true);
8885                }
8886            }
8887
8888            mRet = ret;
8889        }
8890
8891        @Override
8892        void handleReturnCode() {
8893            // If mArgs is null, then MCS couldn't be reached. When it
8894            // reconnects, it will try again to install. At that point, this
8895            // will succeed.
8896            if (mArgs != null) {
8897                processPendingInstall(mArgs, mRet);
8898            }
8899        }
8900
8901        @Override
8902        void handleServiceError() {
8903            mArgs = createInstallArgs(this);
8904            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
8905        }
8906
8907        public boolean isForwardLocked() {
8908            return (flags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
8909        }
8910    }
8911
8912    /*
8913     * Utility class used in movePackage api.
8914     * srcArgs and targetArgs are not set for invalid flags and make
8915     * sure to do null checks when invoking methods on them.
8916     * We probably want to return ErrorPrams for both failed installs
8917     * and moves.
8918     */
8919    class MoveParams extends HandlerParams {
8920        final IPackageMoveObserver observer;
8921        final int flags;
8922        final String packageName;
8923        final InstallArgs srcArgs;
8924        final InstallArgs targetArgs;
8925        int uid;
8926        int mRet;
8927
8928        MoveParams(InstallArgs srcArgs, IPackageMoveObserver observer, int flags,
8929                String packageName, String[] instructionSets, int uid, UserHandle user,
8930                boolean isMultiArch) {
8931            super(user);
8932            this.srcArgs = srcArgs;
8933            this.observer = observer;
8934            this.flags = flags;
8935            this.packageName = packageName;
8936            this.uid = uid;
8937            if (srcArgs != null) {
8938                final String codePath = srcArgs.getCodePath();
8939                targetArgs = createInstallArgsForMoveTarget(codePath, flags, packageName,
8940                        instructionSets, isMultiArch);
8941            } else {
8942                targetArgs = null;
8943            }
8944        }
8945
8946        @Override
8947        public String toString() {
8948            return "MoveParams{"
8949                + Integer.toHexString(System.identityHashCode(this))
8950                + " " + packageName + "}";
8951        }
8952
8953        public void handleStartCopy() throws RemoteException {
8954            mRet = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8955            // Check for storage space on target medium
8956            if (!targetArgs.checkFreeStorage(mContainerService)) {
8957                Log.w(TAG, "Insufficient storage to install");
8958                return;
8959            }
8960
8961            mRet = srcArgs.doPreCopy();
8962            if (mRet != PackageManager.INSTALL_SUCCEEDED) {
8963                return;
8964            }
8965
8966            mRet = targetArgs.copyApk(mContainerService, false);
8967            if (mRet != PackageManager.INSTALL_SUCCEEDED) {
8968                srcArgs.doPostCopy(uid);
8969                return;
8970            }
8971
8972            mRet = srcArgs.doPostCopy(uid);
8973            if (mRet != PackageManager.INSTALL_SUCCEEDED) {
8974                return;
8975            }
8976
8977            mRet = targetArgs.doPreInstall(mRet);
8978            if (mRet != PackageManager.INSTALL_SUCCEEDED) {
8979                return;
8980            }
8981
8982            if (DEBUG_SD_INSTALL) {
8983                StringBuilder builder = new StringBuilder();
8984                if (srcArgs != null) {
8985                    builder.append("src: ");
8986                    builder.append(srcArgs.getCodePath());
8987                }
8988                if (targetArgs != null) {
8989                    builder.append(" target : ");
8990                    builder.append(targetArgs.getCodePath());
8991                }
8992                Log.i(TAG, builder.toString());
8993            }
8994        }
8995
8996        @Override
8997        void handleReturnCode() {
8998            targetArgs.doPostInstall(mRet, uid);
8999            int currentStatus = PackageManager.MOVE_FAILED_INTERNAL_ERROR;
9000            if (mRet == PackageManager.INSTALL_SUCCEEDED) {
9001                currentStatus = PackageManager.MOVE_SUCCEEDED;
9002            } else if (mRet == PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE){
9003                currentStatus = PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE;
9004            }
9005            processPendingMove(this, currentStatus);
9006        }
9007
9008        @Override
9009        void handleServiceError() {
9010            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9011        }
9012    }
9013
9014    /**
9015     * Used during creation of InstallArgs
9016     *
9017     * @param flags package installation flags
9018     * @return true if should be installed on external storage
9019     */
9020    private static boolean installOnSd(int flags) {
9021        if ((flags & PackageManager.INSTALL_INTERNAL) != 0) {
9022            return false;
9023        }
9024        if ((flags & PackageManager.INSTALL_EXTERNAL) != 0) {
9025            return true;
9026        }
9027        return false;
9028    }
9029
9030    /**
9031     * Used during creation of InstallArgs
9032     *
9033     * @param flags package installation flags
9034     * @return true if should be installed as forward locked
9035     */
9036    private static boolean installForwardLocked(int flags) {
9037        return (flags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9038    }
9039
9040    private InstallArgs createInstallArgs(InstallParams params) {
9041        // TODO: extend to support incoming zero-copy locations
9042
9043        if (installOnSd(params.flags) || params.isForwardLocked()) {
9044            return new AsecInstallArgs(params);
9045        } else {
9046            return new FileInstallArgs(params);
9047        }
9048    }
9049
9050    /**
9051     * Create args that describe an existing installed package. Typically used
9052     * when cleaning up old installs, or used as a move source.
9053     */
9054    private InstallArgs createInstallArgsForExisting(int flags, String codePath,
9055            String resourcePath, String nativeLibraryRoot, String[] instructionSets,
9056            boolean isMultiArch) {
9057        final boolean isInAsec;
9058        if (installOnSd(flags)) {
9059            /* Apps on SD card are always in ASEC containers. */
9060            isInAsec = true;
9061        } else if (installForwardLocked(flags)
9062                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9063            /*
9064             * Forward-locked apps are only in ASEC containers if they're the
9065             * new style
9066             */
9067            isInAsec = true;
9068        } else {
9069            isInAsec = false;
9070        }
9071
9072        if (isInAsec) {
9073            return new AsecInstallArgs(codePath, instructionSets,
9074                    installOnSd(flags), installForwardLocked(flags), isMultiArch);
9075        } else {
9076            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9077                    instructionSets, isMultiArch);
9078        }
9079    }
9080
9081    private InstallArgs createInstallArgsForMoveTarget(String codePath, int flags, String pkgName,
9082            String[] instructionSets, boolean isMultiArch) {
9083        final File codeFile = new File(codePath);
9084        if (installOnSd(flags) || installForwardLocked(flags)) {
9085            String cid = getNextCodePath(codePath, pkgName, "/"
9086                    + AsecInstallArgs.RES_FILE_NAME);
9087            return new AsecInstallArgs(codeFile, cid, instructionSets, installOnSd(flags),
9088                    installForwardLocked(flags), isMultiArch);
9089        } else {
9090            return new FileInstallArgs(codeFile, instructionSets, isMultiArch);
9091        }
9092    }
9093
9094    static abstract class InstallArgs {
9095        /** @see InstallParams#originFile */
9096        final File originFile;
9097        /** @see InstallParams#originStaged */
9098        final boolean originStaged;
9099
9100        // TODO: define inherit location
9101
9102        final IPackageInstallObserver2 observer;
9103        // Always refers to PackageManager flags only
9104        final int flags;
9105        final String installerPackageName;
9106        final ManifestDigest manifestDigest;
9107        final UserHandle user;
9108        final String abiOverride;
9109        final boolean multiArch;
9110
9111        // The list of instruction sets supported by this app. This is currently
9112        // only used during the rmdex() phase to clean up resources. We can get rid of this
9113        // if we move dex files under the common app path.
9114        /* nullable */ String[] instructionSets;
9115
9116        InstallArgs(File originFile, boolean originStaged, IPackageInstallObserver2 observer,
9117                    int flags, String installerPackageName, ManifestDigest manifestDigest,
9118                    UserHandle user, String[] instructionSets,
9119                    String abiOverride, boolean multiArch) {
9120            this.originFile = originFile;
9121            this.originStaged = originStaged;
9122            this.flags = flags;
9123            this.observer = observer;
9124            this.installerPackageName = installerPackageName;
9125            this.manifestDigest = manifestDigest;
9126            this.user = user;
9127            this.instructionSets = instructionSets;
9128            this.abiOverride = abiOverride;
9129            this.multiArch = multiArch;
9130        }
9131
9132        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9133        abstract int doPreInstall(int status);
9134
9135        /**
9136         * Rename package into final resting place. All paths on the given
9137         * scanned package should be updated to reflect the rename.
9138         */
9139        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9140        abstract int doPostInstall(int status, int uid);
9141
9142        /** @see PackageSettingBase#codePathString */
9143        abstract String getCodePath();
9144        /** @see PackageSettingBase#resourcePathString */
9145        abstract String getResourcePath();
9146        abstract String getLegacyNativeLibraryPath();
9147
9148        // Need installer lock especially for dex file removal.
9149        abstract void cleanUpResourcesLI();
9150        abstract boolean doPostDeleteLI(boolean delete);
9151        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9152
9153        /**
9154         * Called before the source arguments are copied. This is used mostly
9155         * for MoveParams when it needs to read the source file to put it in the
9156         * destination.
9157         */
9158        int doPreCopy() {
9159            return PackageManager.INSTALL_SUCCEEDED;
9160        }
9161
9162        /**
9163         * Called after the source arguments are copied. This is used mostly for
9164         * MoveParams when it needs to read the source file to put it in the
9165         * destination.
9166         *
9167         * @return
9168         */
9169        int doPostCopy(int uid) {
9170            return PackageManager.INSTALL_SUCCEEDED;
9171        }
9172
9173        protected boolean isFwdLocked() {
9174            return (flags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9175        }
9176
9177        UserHandle getUser() {
9178            return user;
9179        }
9180    }
9181
9182    /**
9183     * Logic to handle installation of non-ASEC applications, including copying
9184     * and renaming logic.
9185     */
9186    class FileInstallArgs extends InstallArgs {
9187        private File codeFile;
9188        private File resourceFile;
9189        private File legacyNativeLibraryPath;
9190
9191        // Example topology:
9192        // /data/app/com.example/base.apk
9193        // /data/app/com.example/split_foo.apk
9194        // /data/app/com.example/lib/arm/libfoo.so
9195        // /data/app/com.example/lib/arm64/libfoo.so
9196        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9197
9198        /** New install */
9199        FileInstallArgs(InstallParams params) {
9200            super(params.originFile, params.originStaged, params.observer, params.flags,
9201                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9202                    null /* instruction sets */, params.packageAbiOverride,
9203                    params.multiArch);
9204            if (isFwdLocked()) {
9205                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9206            }
9207        }
9208
9209        /** Existing install */
9210        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9211                String[] instructionSets, boolean isMultiArch) {
9212            super(null, false, null, 0, null, null, null, instructionSets, null, isMultiArch);
9213            this.codeFile = (codePath != null) ? new File(codePath) : null;
9214            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9215            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9216                    new File(legacyNativeLibraryPath) : null;
9217        }
9218
9219        /** New install from existing */
9220        FileInstallArgs(File originFile, String[] instructionSets, boolean isMultiArch) {
9221            super(originFile, false, null, 0, null, null, null, instructionSets, null,
9222                    isMultiArch);
9223        }
9224
9225        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9226            final long lowThreshold;
9227
9228            final DeviceStorageMonitorInternal
9229                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
9230            if (dsm == null) {
9231                Log.w(TAG, "Couldn't get low memory threshold; no free limit imposed");
9232                lowThreshold = 0L;
9233            } else {
9234                if (dsm.isMemoryLow()) {
9235                    Log.w(TAG, "Memory is reported as being too low; aborting package install");
9236                    return false;
9237                }
9238
9239                lowThreshold = dsm.getMemoryLowThreshold();
9240            }
9241
9242            return imcs.checkInternalFreeStorage(originFile.getAbsolutePath(), isFwdLocked(),
9243                    lowThreshold);
9244        }
9245
9246        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9247            int ret = PackageManager.INSTALL_SUCCEEDED;
9248
9249            if (originStaged) {
9250                Slog.d(TAG, originFile + " already staged; skipping copy");
9251                codeFile = originFile;
9252                resourceFile = originFile;
9253            } else {
9254                try {
9255                    final File tempDir = mInstallerService.allocateSessionDir();
9256                    codeFile = tempDir;
9257                    resourceFile = tempDir;
9258                } catch (IOException e) {
9259                    Slog.w(TAG, "Failed to create copy file: " + e);
9260                    return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9261                }
9262
9263                final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9264                    @Override
9265                    public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9266                        if (!FileUtils.isValidExtFilename(name)) {
9267                            throw new IllegalArgumentException("Invalid filename: " + name);
9268                        }
9269                        try {
9270                            final File file = new File(codeFile, name);
9271                            final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9272                                    O_RDWR | O_CREAT, 0644);
9273                            Os.chmod(file.getAbsolutePath(), 0644);
9274                            return new ParcelFileDescriptor(fd);
9275                        } catch (ErrnoException e) {
9276                            throw new RemoteException("Failed to open: " + e.getMessage());
9277                        }
9278                    }
9279                };
9280
9281                ret = imcs.copyPackage(originFile.getAbsolutePath(), target);
9282                if (ret != PackageManager.INSTALL_SUCCEEDED) {
9283                    Slog.e(TAG, "Failed to copy package");
9284                    return ret;
9285                }
9286            }
9287
9288            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9289            NativeLibraryHelper.Handle handle = null;
9290            try {
9291                handle = NativeLibraryHelper.Handle.create(codeFile);
9292                if (multiArch) {
9293                    // Warn if we've set an abiOverride for multi-lib packages..
9294                    // By definition, we need to copy both 32 and 64 bit libraries for
9295                    // such packages.
9296                    if (abiOverride != null &&  !CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
9297                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
9298                    }
9299
9300                    int copyRet = PackageManager.NO_NATIVE_LIBRARIES;
9301                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
9302                        copyRet = copyNativeLibrariesForInternalApp(handle, libraryRoot,
9303                                Build.SUPPORTED_32_BIT_ABIS, true /* use isa specific subdirs */);
9304                        maybeThrowExceptionForMultiArchCopy("Failure copying 32 bit native libraries", copyRet);
9305                    }
9306
9307                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
9308                        copyRet = copyNativeLibrariesForInternalApp(handle, libraryRoot,
9309                                Build.SUPPORTED_64_BIT_ABIS, true /* use isa specific subdirs */);
9310                        maybeThrowExceptionForMultiArchCopy("Failure copying 64 bit native libraries", copyRet);
9311                    }
9312                } else {
9313                    final String cpuAbiOverride = deriveAbiOverride(this.abiOverride, null /* package setting */);
9314                    String[] abiList = (cpuAbiOverride != null) ?
9315                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
9316
9317                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
9318                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
9319                        abiList = Build.SUPPORTED_32_BIT_ABIS;
9320                    }
9321
9322                    int copyRet = copyNativeLibrariesForInternalApp(handle, libraryRoot, abiList,
9323                            true /* use isa specific subdirs */);
9324                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
9325                        Slog.w(TAG, "Failure copying native libraries [errorCode=" + copyRet + "]");
9326                        return copyRet;
9327                    }
9328                }
9329            } catch (IOException e) {
9330                Slog.e(TAG, "Copying native libraries failed", e);
9331                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9332            } catch (PackageManagerException pme) {
9333                Slog.e(TAG, "Copying native libraries failed", pme);
9334                ret = pme.error;
9335            } finally {
9336                IoUtils.closeQuietly(handle);
9337            }
9338
9339            return ret;
9340        }
9341
9342        int doPreInstall(int status) {
9343            if (status != PackageManager.INSTALL_SUCCEEDED) {
9344                cleanUp();
9345            }
9346            return status;
9347        }
9348
9349        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9350            if (status != PackageManager.INSTALL_SUCCEEDED) {
9351                cleanUp();
9352                return false;
9353            } else {
9354                final File beforeCodeFile = codeFile;
9355                final File afterCodeFile = getNextCodePath(pkg.packageName);
9356
9357                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9358                try {
9359                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9360                } catch (ErrnoException e) {
9361                    Slog.d(TAG, "Failed to rename", e);
9362                    return false;
9363                }
9364
9365                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9366                    Slog.d(TAG, "Failed to restorecon");
9367                    return false;
9368                }
9369
9370                // Reflect the rename internally
9371                codeFile = afterCodeFile;
9372                resourceFile = afterCodeFile;
9373
9374                // Reflect the rename in scanned details
9375                pkg.codePath = afterCodeFile.getAbsolutePath();
9376                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9377                        pkg.baseCodePath);
9378                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9379                        pkg.splitCodePaths);
9380
9381                // Reflect the rename in app info
9382                pkg.applicationInfo.setCodePath(pkg.codePath);
9383                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9384                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9385                pkg.applicationInfo.setResourcePath(pkg.codePath);
9386                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9387                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9388
9389                return true;
9390            }
9391        }
9392
9393        int doPostInstall(int status, int uid) {
9394            if (status != PackageManager.INSTALL_SUCCEEDED) {
9395                cleanUp();
9396            }
9397            return status;
9398        }
9399
9400        @Override
9401        String getCodePath() {
9402            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9403        }
9404
9405        @Override
9406        String getResourcePath() {
9407            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9408        }
9409
9410        @Override
9411        String getLegacyNativeLibraryPath() {
9412            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9413        }
9414
9415        private boolean cleanUp() {
9416            if (codeFile == null || !codeFile.exists()) {
9417                return false;
9418            }
9419
9420            if (codeFile.isDirectory()) {
9421                FileUtils.deleteContents(codeFile);
9422            }
9423            codeFile.delete();
9424
9425            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9426                resourceFile.delete();
9427            }
9428
9429            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9430                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9431                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9432                }
9433                legacyNativeLibraryPath.delete();
9434            }
9435
9436            return true;
9437        }
9438
9439        void cleanUpResourcesLI() {
9440            // Try enumerating all code paths before deleting
9441            List<String> allCodePaths = Collections.EMPTY_LIST;
9442            if (codeFile != null && codeFile.exists()) {
9443                try {
9444                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9445                    allCodePaths = pkg.getAllCodePaths();
9446                } catch (PackageParserException e) {
9447                    // Ignored; we tried our best
9448                }
9449            }
9450
9451            cleanUp();
9452
9453            if (!allCodePaths.isEmpty()) {
9454                if (instructionSets == null) {
9455                    throw new IllegalStateException("instructionSet == null");
9456                }
9457                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9458                for (String codePath : allCodePaths) {
9459                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9460                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9461                        if (retCode < 0) {
9462                            Slog.w(TAG, "Couldn't remove dex file for package: "
9463                                    + " at location " + codePath + ", retcode=" + retCode);
9464                            // we don't consider this to be a failure of the core package deletion
9465                        }
9466                    }
9467                }
9468            }
9469        }
9470
9471        boolean doPostDeleteLI(boolean delete) {
9472            // XXX err, shouldn't we respect the delete flag?
9473            cleanUpResourcesLI();
9474            return true;
9475        }
9476    }
9477
9478    private boolean isAsecExternal(String cid) {
9479        final String asecPath = PackageHelper.getSdFilesystem(cid);
9480        return !asecPath.startsWith(mAsecInternalPath);
9481    }
9482
9483    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9484            PackageManagerException {
9485        if (copyRet < 0) {
9486            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9487                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9488                throw new PackageManagerException(copyRet, message);
9489            }
9490        }
9491    }
9492
9493    /**
9494     * Extract the MountService "container ID" from the full code path of an
9495     * .apk.
9496     */
9497    static String cidFromCodePath(String fullCodePath) {
9498        int eidx = fullCodePath.lastIndexOf("/");
9499        String subStr1 = fullCodePath.substring(0, eidx);
9500        int sidx = subStr1.lastIndexOf("/");
9501        return subStr1.substring(sidx+1, eidx);
9502    }
9503
9504    /**
9505     * Logic to handle installation of ASEC applications, including copying and
9506     * renaming logic.
9507     */
9508    class AsecInstallArgs extends InstallArgs {
9509        // TODO: teach about handling cluster directories
9510
9511        static final String RES_FILE_NAME = "pkg.apk";
9512        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9513
9514        String cid;
9515        String packagePath;
9516        String resourcePath;
9517        String legacyNativeLibraryDir;
9518
9519        /** New install */
9520        AsecInstallArgs(InstallParams params) {
9521            super(params.originFile, params.originStaged, params.observer, params.flags,
9522                    params.installerPackageName, params.getManifestDigest(),
9523                    params.getUser(), null /* instruction sets */,
9524                    params.packageAbiOverride, params.multiArch);
9525        }
9526
9527        /** Existing install */
9528        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9529                        boolean isExternal, boolean isForwardLocked, boolean isMultiArch) {
9530            super(null, false, null, (isExternal ? INSTALL_EXTERNAL : 0)
9531                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9532                    instructionSets, null, isMultiArch);
9533            // Extract cid from fullCodePath
9534            int eidx = fullCodePath.lastIndexOf("/");
9535            String subStr1 = fullCodePath.substring(0, eidx);
9536            int sidx = subStr1.lastIndexOf("/");
9537            cid = subStr1.substring(sidx+1, eidx);
9538            setCachePath(subStr1);
9539        }
9540
9541        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked,
9542                        boolean isMultiArch) {
9543            super(null, false, null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9544                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9545                    instructionSets, null, isMultiArch);
9546            this.cid = cid;
9547            setCachePath(PackageHelper.getSdDir(cid));
9548        }
9549
9550        /** New install from existing */
9551        AsecInstallArgs(File originPackageFile, String cid, String[] instructionSets,
9552                boolean isExternal, boolean isForwardLocked, boolean isMultiArch) {
9553            super(originPackageFile, false, null, (isExternal ? INSTALL_EXTERNAL : 0)
9554                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9555                    instructionSets, null, isMultiArch);
9556            this.cid = cid;
9557        }
9558
9559        void createCopyFile() {
9560            cid = getTempContainerId();
9561        }
9562
9563        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9564            return imcs.checkExternalFreeStorage(originFile.getAbsolutePath(), isFwdLocked(),
9565                    abiOverride);
9566        }
9567
9568        private final boolean isExternal() {
9569            return (flags & PackageManager.INSTALL_EXTERNAL) != 0;
9570        }
9571
9572        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9573            if (temp) {
9574                createCopyFile();
9575            } else {
9576                /*
9577                 * Pre-emptively destroy the container since it's destroyed if
9578                 * copying fails due to it existing anyway.
9579                 */
9580                PackageHelper.destroySdDir(cid);
9581            }
9582
9583            final String newCachePath = imcs.copyPackageToContainer(
9584                    originFile.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9585                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9586
9587            if (newCachePath != null) {
9588                setCachePath(newCachePath);
9589                return PackageManager.INSTALL_SUCCEEDED;
9590            } else {
9591                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9592            }
9593        }
9594
9595        @Override
9596        String getCodePath() {
9597            return packagePath;
9598        }
9599
9600        @Override
9601        String getResourcePath() {
9602            return resourcePath;
9603        }
9604
9605        @Override
9606        String getLegacyNativeLibraryPath() {
9607            return legacyNativeLibraryDir;
9608        }
9609
9610        int doPreInstall(int status) {
9611            if (status != PackageManager.INSTALL_SUCCEEDED) {
9612                // Destroy container
9613                PackageHelper.destroySdDir(cid);
9614            } else {
9615                boolean mounted = PackageHelper.isContainerMounted(cid);
9616                if (!mounted) {
9617                    String newCachePath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9618                            Process.SYSTEM_UID);
9619                    if (newCachePath != null) {
9620                        setCachePath(newCachePath);
9621                    } else {
9622                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9623                    }
9624                }
9625            }
9626            return status;
9627        }
9628
9629        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9630            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9631            String newCachePath = null;
9632            if (PackageHelper.isContainerMounted(cid)) {
9633                // Unmount the container
9634                if (!PackageHelper.unMountSdDir(cid)) {
9635                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9636                    return false;
9637                }
9638            }
9639            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9640                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9641                        " which might be stale. Will try to clean up.");
9642                // Clean up the stale container and proceed to recreate.
9643                if (!PackageHelper.destroySdDir(newCacheId)) {
9644                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9645                    return false;
9646                }
9647                // Successfully cleaned up stale container. Try to rename again.
9648                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9649                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9650                            + " inspite of cleaning it up.");
9651                    return false;
9652                }
9653            }
9654            if (!PackageHelper.isContainerMounted(newCacheId)) {
9655                Slog.w(TAG, "Mounting container " + newCacheId);
9656                newCachePath = PackageHelper.mountSdDir(newCacheId,
9657                        getEncryptKey(), Process.SYSTEM_UID);
9658            } else {
9659                newCachePath = PackageHelper.getSdDir(newCacheId);
9660            }
9661            if (newCachePath == null) {
9662                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9663                return false;
9664            }
9665            Log.i(TAG, "Succesfully renamed " + cid +
9666                    " to " + newCacheId +
9667                    " at new path: " + newCachePath);
9668            cid = newCacheId;
9669            setCachePath(newCachePath);
9670
9671            // TODO: extend to support split APKs
9672            pkg.codePath = getCodePath();
9673            pkg.baseCodePath = getCodePath();
9674            pkg.splitCodePaths = null;
9675
9676            pkg.applicationInfo.setCodePath(getCodePath());
9677            pkg.applicationInfo.setBaseCodePath(getCodePath());
9678            pkg.applicationInfo.setSplitCodePaths(null);
9679            pkg.applicationInfo.setResourcePath(getResourcePath());
9680            pkg.applicationInfo.setBaseResourcePath(getResourcePath());
9681            pkg.applicationInfo.setSplitResourcePaths(null);
9682
9683            return true;
9684        }
9685
9686        private void setCachePath(String newCachePath) {
9687            File cachePath = new File(newCachePath);
9688            legacyNativeLibraryDir = new File(cachePath, LIB_DIR_NAME).getPath();
9689            packagePath = new File(cachePath, RES_FILE_NAME).getPath();
9690
9691            if (isFwdLocked()) {
9692                resourcePath = new File(cachePath, PUBLIC_RES_FILE_NAME).getPath();
9693            } else {
9694                resourcePath = packagePath;
9695            }
9696        }
9697
9698        int doPostInstall(int status, int uid) {
9699            if (status != PackageManager.INSTALL_SUCCEEDED) {
9700                cleanUp();
9701            } else {
9702                final int groupOwner;
9703                final String protectedFile;
9704                if (isFwdLocked()) {
9705                    groupOwner = UserHandle.getSharedAppGid(uid);
9706                    protectedFile = RES_FILE_NAME;
9707                } else {
9708                    groupOwner = -1;
9709                    protectedFile = null;
9710                }
9711
9712                if (uid < Process.FIRST_APPLICATION_UID
9713                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9714                    Slog.e(TAG, "Failed to finalize " + cid);
9715                    PackageHelper.destroySdDir(cid);
9716                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9717                }
9718
9719                boolean mounted = PackageHelper.isContainerMounted(cid);
9720                if (!mounted) {
9721                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9722                }
9723            }
9724            return status;
9725        }
9726
9727        private void cleanUp() {
9728            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9729
9730            // Destroy secure container
9731            PackageHelper.destroySdDir(cid);
9732        }
9733
9734        void cleanUpResourcesLI() {
9735            String sourceFile = getCodePath();
9736            // Remove dex file
9737            if (instructionSets == null) {
9738                throw new IllegalStateException("instructionSet == null");
9739            }
9740            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9741            for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9742                int retCode = mInstaller.rmdex(sourceFile, dexCodeInstructionSet);
9743                if (retCode < 0) {
9744                    Slog.w(TAG, "Couldn't remove dex file for package: "
9745                            + " at location "
9746                            + sourceFile.toString() + ", retcode=" + retCode);
9747                    // we don't consider this to be a failure of the core package deletion
9748                }
9749            }
9750            cleanUp();
9751        }
9752
9753        boolean matchContainer(String app) {
9754            if (cid.startsWith(app)) {
9755                return true;
9756            }
9757            return false;
9758        }
9759
9760        String getPackageName() {
9761            return getAsecPackageName(cid);
9762        }
9763
9764        boolean doPostDeleteLI(boolean delete) {
9765            boolean ret = false;
9766            boolean mounted = PackageHelper.isContainerMounted(cid);
9767            if (mounted) {
9768                // Unmount first
9769                ret = PackageHelper.unMountSdDir(cid);
9770            }
9771            if (ret && delete) {
9772                cleanUpResourcesLI();
9773            }
9774            return ret;
9775        }
9776
9777        @Override
9778        int doPreCopy() {
9779            if (isFwdLocked()) {
9780                if (!PackageHelper.fixSdPermissions(cid,
9781                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9782                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9783                }
9784            }
9785
9786            return PackageManager.INSTALL_SUCCEEDED;
9787        }
9788
9789        @Override
9790        int doPostCopy(int uid) {
9791            if (isFwdLocked()) {
9792                if (uid < Process.FIRST_APPLICATION_UID
9793                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9794                                RES_FILE_NAME)) {
9795                    Slog.e(TAG, "Failed to finalize " + cid);
9796                    PackageHelper.destroySdDir(cid);
9797                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9798                }
9799            }
9800
9801            return PackageManager.INSTALL_SUCCEEDED;
9802        }
9803    }
9804
9805    static String getAsecPackageName(String packageCid) {
9806        int idx = packageCid.lastIndexOf("-");
9807        if (idx == -1) {
9808            return packageCid;
9809        }
9810        return packageCid.substring(0, idx);
9811    }
9812
9813    // Utility method used to create code paths based on package name and available index.
9814    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9815        String idxStr = "";
9816        int idx = 1;
9817        // Fall back to default value of idx=1 if prefix is not
9818        // part of oldCodePath
9819        if (oldCodePath != null) {
9820            String subStr = oldCodePath;
9821            // Drop the suffix right away
9822            if (suffix != null && subStr.endsWith(suffix)) {
9823                subStr = subStr.substring(0, subStr.length() - suffix.length());
9824            }
9825            // If oldCodePath already contains prefix find out the
9826            // ending index to either increment or decrement.
9827            int sidx = subStr.lastIndexOf(prefix);
9828            if (sidx != -1) {
9829                subStr = subStr.substring(sidx + prefix.length());
9830                if (subStr != null) {
9831                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9832                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9833                    }
9834                    try {
9835                        idx = Integer.parseInt(subStr);
9836                        if (idx <= 1) {
9837                            idx++;
9838                        } else {
9839                            idx--;
9840                        }
9841                    } catch(NumberFormatException e) {
9842                    }
9843                }
9844            }
9845        }
9846        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9847        return prefix + idxStr;
9848    }
9849
9850    private File getNextCodePath(String packageName) {
9851        int suffix = 1;
9852        File result;
9853        do {
9854            result = new File(mAppInstallDir, packageName + "-" + suffix);
9855            suffix++;
9856        } while (result.exists());
9857        return result;
9858    }
9859
9860    // Utility method used to ignore ADD/REMOVE events
9861    // by directory observer.
9862    private static boolean ignoreCodePath(String fullPathStr) {
9863        String apkName = deriveCodePathName(fullPathStr);
9864        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9865        if (idx != -1 && ((idx+1) < apkName.length())) {
9866            // Make sure the package ends with a numeral
9867            String version = apkName.substring(idx+1);
9868            try {
9869                Integer.parseInt(version);
9870                return true;
9871            } catch (NumberFormatException e) {}
9872        }
9873        return false;
9874    }
9875
9876    // Utility method that returns the relative package path with respect
9877    // to the installation directory. Like say for /data/data/com.test-1.apk
9878    // string com.test-1 is returned.
9879    static String deriveCodePathName(String codePath) {
9880        if (codePath == null) {
9881            return null;
9882        }
9883        final File codeFile = new File(codePath);
9884        final String name = codeFile.getName();
9885        if (codeFile.isDirectory()) {
9886            return name;
9887        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9888            final int lastDot = name.lastIndexOf('.');
9889            return name.substring(0, lastDot);
9890        } else {
9891            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9892            return null;
9893        }
9894    }
9895
9896    class PackageInstalledInfo {
9897        String name;
9898        int uid;
9899        // The set of users that originally had this package installed.
9900        int[] origUsers;
9901        // The set of users that now have this package installed.
9902        int[] newUsers;
9903        PackageParser.Package pkg;
9904        int returnCode;
9905        String returnMsg;
9906        PackageRemovedInfo removedInfo;
9907
9908        public void setError(int code, String msg) {
9909            returnCode = code;
9910            returnMsg = msg;
9911            Slog.w(TAG, msg);
9912        }
9913
9914        public void setError(String msg, PackageParserException e) {
9915            returnCode = e.error;
9916            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9917            Slog.w(TAG, msg, e);
9918        }
9919
9920        public void setError(String msg, PackageManagerException e) {
9921            returnCode = e.error;
9922            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9923            Slog.w(TAG, msg, e);
9924        }
9925
9926        // In some error cases we want to convey more info back to the observer
9927        String origPackage;
9928        String origPermission;
9929    }
9930
9931    /*
9932     * Install a non-existing package.
9933     */
9934    private void installNewPackageLI(PackageParser.Package pkg,
9935            int parseFlags, int scanMode, UserHandle user,
9936            String installerPackageName, PackageInstalledInfo res) {
9937        // Remember this for later, in case we need to rollback this install
9938        String pkgName = pkg.packageName;
9939
9940        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9941        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9942        synchronized(mPackages) {
9943            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9944                // A package with the same name is already installed, though
9945                // it has been renamed to an older name.  The package we
9946                // are trying to install should be installed as an update to
9947                // the existing one, but that has not been requested, so bail.
9948                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9949                        + " without first uninstalling package running as "
9950                        + mSettings.mRenamedPackages.get(pkgName));
9951                return;
9952            }
9953            if (mPackages.containsKey(pkgName) || mAppDirs.containsKey(pkg.codePath)) {
9954                // Don't allow installation over an existing package with the same name.
9955                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9956                        + " without first uninstalling.");
9957                return;
9958            }
9959        }
9960
9961        try {
9962            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanMode,
9963                    System.currentTimeMillis(), user);
9964
9965            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9966            // delete the partially installed application. the data directory will have to be
9967            // restored if it was already existing
9968            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
9969                // remove package from internal structures.  Note that we want deletePackageX to
9970                // delete the package data and cache directories that it created in
9971                // scanPackageLocked, unless those directories existed before we even tried to
9972                // install.
9973                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
9974                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
9975                                res.removedInfo, true);
9976            }
9977
9978        } catch (PackageManagerException e) {
9979            res.setError("Package couldn't be installed in " + pkg.codePath, e);
9980        }
9981    }
9982
9983    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
9984        // Upgrade keysets are being used.  Determine if new package has a superset of the
9985        // required keys.
9986        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
9987        KeySetManagerService ksms = mSettings.mKeySetManagerService;
9988        for (int i = 0; i < upgradeKeySets.length; i++) {
9989            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
9990            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
9991                return true;
9992            }
9993        }
9994        return false;
9995    }
9996
9997    private void replacePackageLI(PackageParser.Package pkg,
9998            int parseFlags, int scanMode, UserHandle user,
9999            String installerPackageName, PackageInstalledInfo res) {
10000        PackageParser.Package oldPackage;
10001        String pkgName = pkg.packageName;
10002        int[] allUsers;
10003        boolean[] perUserInstalled;
10004
10005        // First find the old package info and check signatures
10006        synchronized(mPackages) {
10007            oldPackage = mPackages.get(pkgName);
10008            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10009            PackageSetting ps = mSettings.mPackages.get(pkgName);
10010            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10011                // default to original signature matching
10012                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10013                    != PackageManager.SIGNATURE_MATCH) {
10014                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10015                            "New package has a different signature: " + pkgName);
10016                    return;
10017                }
10018            } else {
10019                if(!checkUpgradeKeySetLP(ps, pkg)) {
10020                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10021                            "New package not signed by keys specified by upgrade-keysets: "
10022                            + pkgName);
10023                    return;
10024                }
10025            }
10026
10027            // In case of rollback, remember per-user/profile install state
10028            allUsers = sUserManager.getUserIds();
10029            perUserInstalled = new boolean[allUsers.length];
10030            for (int i = 0; i < allUsers.length; i++) {
10031                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10032            }
10033        }
10034
10035        boolean sysPkg = (isSystemApp(oldPackage));
10036        if (sysPkg) {
10037            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanMode,
10038                    user, allUsers, perUserInstalled, installerPackageName, res);
10039        } else {
10040            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanMode,
10041                    user, allUsers, perUserInstalled, installerPackageName, res);
10042        }
10043    }
10044
10045    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10046            PackageParser.Package pkg, int parseFlags, int scanMode, UserHandle user,
10047            int[] allUsers, boolean[] perUserInstalled,
10048            String installerPackageName, PackageInstalledInfo res) {
10049        String pkgName = deletedPackage.packageName;
10050        boolean deletedPkg = true;
10051        boolean updatedSettings = false;
10052
10053        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10054                + deletedPackage);
10055        long origUpdateTime;
10056        if (pkg.mExtras != null) {
10057            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10058        } else {
10059            origUpdateTime = 0;
10060        }
10061
10062        // First delete the existing package while retaining the data directory
10063        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10064                res.removedInfo, true)) {
10065            // If the existing package wasn't successfully deleted
10066            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10067            deletedPkg = false;
10068        } else {
10069            // Successfully deleted the old package. Now proceed with re-installation
10070            deleteCodeCacheDirsLI(pkgName);
10071            try {
10072                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10073                        scanMode | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10074                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10075                updatedSettings = true;
10076            } catch (PackageManagerException e) {
10077                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10078            }
10079        }
10080
10081        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10082            // remove package from internal structures.  Note that we want deletePackageX to
10083            // delete the package data and cache directories that it created in
10084            // scanPackageLocked, unless those directories existed before we even tried to
10085            // install.
10086            if(updatedSettings) {
10087                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10088                deletePackageLI(
10089                        pkgName, null, true, allUsers, perUserInstalled,
10090                        PackageManager.DELETE_KEEP_DATA,
10091                                res.removedInfo, true);
10092            }
10093            // Since we failed to install the new package we need to restore the old
10094            // package that we deleted.
10095            if (deletedPkg) {
10096                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10097                File restoreFile = new File(deletedPackage.codePath);
10098                // Parse old package
10099                boolean oldOnSd = isExternal(deletedPackage);
10100                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10101                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10102                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10103                int oldScanMode = (oldOnSd ? 0 : SCAN_MONITOR) | SCAN_UPDATE_SIGNATURE
10104                        | SCAN_UPDATE_TIME;
10105                try {
10106                    scanPackageLI(restoreFile, oldParseFlags, oldScanMode, origUpdateTime, null);
10107                } catch (PackageManagerException e) {
10108                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10109                            + e.getMessage());
10110                    return;
10111                }
10112                // Restore of old package succeeded. Update permissions.
10113                // writer
10114                synchronized (mPackages) {
10115                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10116                            UPDATE_PERMISSIONS_ALL);
10117                    // can downgrade to reader
10118                    mSettings.writeLPr();
10119                }
10120                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10121            }
10122        }
10123    }
10124
10125    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10126            PackageParser.Package pkg, int parseFlags, int scanMode, UserHandle user,
10127            int[] allUsers, boolean[] perUserInstalled,
10128            String installerPackageName, PackageInstalledInfo res) {
10129        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10130                + ", old=" + deletedPackage);
10131        boolean updatedSettings = false;
10132        parseFlags |= PackageManager.INSTALL_REPLACE_EXISTING |
10133                PackageParser.PARSE_IS_SYSTEM;
10134        if ((deletedPackage.applicationInfo.flags&ApplicationInfo.FLAG_PRIVILEGED) != 0) {
10135            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10136        }
10137        String packageName = deletedPackage.packageName;
10138        if (packageName == null) {
10139            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10140                    "Attempt to delete null packageName.");
10141            return;
10142        }
10143        PackageParser.Package oldPkg;
10144        PackageSetting oldPkgSetting;
10145        // reader
10146        synchronized (mPackages) {
10147            oldPkg = mPackages.get(packageName);
10148            oldPkgSetting = mSettings.mPackages.get(packageName);
10149            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10150                    (oldPkgSetting == null)) {
10151                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10152                        "Couldn't find package:" + packageName + " information");
10153                return;
10154            }
10155        }
10156
10157        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10158
10159        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10160        res.removedInfo.removedPackage = packageName;
10161        // Remove existing system package
10162        removePackageLI(oldPkgSetting, true);
10163        // writer
10164        synchronized (mPackages) {
10165            if (!mSettings.disableSystemPackageLPw(packageName) && deletedPackage != null) {
10166                // We didn't need to disable the .apk as a current system package,
10167                // which means we are replacing another update that is already
10168                // installed.  We need to make sure to delete the older one's .apk.
10169                res.removedInfo.args = createInstallArgsForExisting(0,
10170                        deletedPackage.applicationInfo.getCodePath(),
10171                        deletedPackage.applicationInfo.getResourcePath(),
10172                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10173                        getAppDexInstructionSets(deletedPackage.applicationInfo),
10174                        isMultiArch(deletedPackage.applicationInfo));
10175            } else {
10176                res.removedInfo.args = null;
10177            }
10178        }
10179
10180        // Successfully disabled the old package. Now proceed with re-installation
10181        deleteCodeCacheDirsLI(packageName);
10182
10183        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10184        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10185
10186        PackageParser.Package newPackage = null;
10187        try {
10188            newPackage = scanPackageLI(pkg, parseFlags, scanMode, 0, user);
10189            if (newPackage.mExtras != null) {
10190                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10191                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10192                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10193
10194                // is the update attempting to change shared user? that isn't going to work...
10195                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10196                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10197                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10198                            + " to " + newPkgSetting.sharedUser);
10199                    updatedSettings = true;
10200                }
10201            }
10202
10203            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10204                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10205                updatedSettings = true;
10206            }
10207
10208        } catch (PackageManagerException e) {
10209            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10210        }
10211
10212        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10213            // Re installation failed. Restore old information
10214            // Remove new pkg information
10215            if (newPackage != null) {
10216                removeInstalledPackageLI(newPackage, true);
10217            }
10218            // Add back the old system package
10219            try {
10220                scanPackageLI(oldPkg, parseFlags, SCAN_MONITOR | SCAN_UPDATE_SIGNATURE, 0, user);
10221            } catch (PackageManagerException e) {
10222                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10223            }
10224            // Restore the old system information in Settings
10225            synchronized(mPackages) {
10226                if (updatedSettings) {
10227                    mSettings.enableSystemPackageLPw(packageName);
10228                    mSettings.setInstallerPackageName(packageName,
10229                            oldPkgSetting.installerPackageName);
10230                }
10231                mSettings.writeLPr();
10232            }
10233        }
10234    }
10235
10236    // Utility method used to move dex files during install.
10237    private int moveDexFilesLI(String oldCodePath, PackageParser.Package newPackage) {
10238        // TODO: extend to move split APK dex files
10239        if ((newPackage.applicationInfo.flags&ApplicationInfo.FLAG_HAS_CODE) != 0) {
10240            final String[] instructionSets = getAppDexInstructionSets(newPackage.applicationInfo);
10241            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
10242            for (String dexCodeInstructionSet : dexCodeInstructionSets) {
10243                int retCode = mInstaller.movedex(oldCodePath, newPackage.baseCodePath,
10244                        dexCodeInstructionSet);
10245                if (retCode != 0) {
10246                /*
10247                 * Programs may be lazily run through dexopt, so the
10248                 * source may not exist. However, something seems to
10249                 * have gone wrong, so note that dexopt needs to be
10250                 * run again and remove the source file. In addition,
10251                 * remove the target to make sure there isn't a stale
10252                 * file from a previous version of the package.
10253                 */
10254                    newPackage.mDexOptPerformed.clear();
10255                    mInstaller.rmdex(oldCodePath, dexCodeInstructionSet);
10256                    mInstaller.rmdex(newPackage.baseCodePath, dexCodeInstructionSet);
10257                }
10258            }
10259        }
10260        return PackageManager.INSTALL_SUCCEEDED;
10261    }
10262
10263    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10264            int[] allUsers, boolean[] perUserInstalled,
10265            PackageInstalledInfo res) {
10266        String pkgName = newPackage.packageName;
10267        synchronized (mPackages) {
10268            //write settings. the installStatus will be incomplete at this stage.
10269            //note that the new package setting would have already been
10270            //added to mPackages. It hasn't been persisted yet.
10271            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10272            mSettings.writeLPr();
10273        }
10274
10275        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10276
10277        synchronized (mPackages) {
10278            updatePermissionsLPw(newPackage.packageName, newPackage,
10279                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10280                            ? UPDATE_PERMISSIONS_ALL : 0));
10281            // For system-bundled packages, we assume that installing an upgraded version
10282            // of the package implies that the user actually wants to run that new code,
10283            // so we enable the package.
10284            if (isSystemApp(newPackage)) {
10285                // NB: implicit assumption that system package upgrades apply to all users
10286                if (DEBUG_INSTALL) {
10287                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10288                }
10289                PackageSetting ps = mSettings.mPackages.get(pkgName);
10290                if (ps != null) {
10291                    if (res.origUsers != null) {
10292                        for (int userHandle : res.origUsers) {
10293                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10294                                    userHandle, installerPackageName);
10295                        }
10296                    }
10297                    // Also convey the prior install/uninstall state
10298                    if (allUsers != null && perUserInstalled != null) {
10299                        for (int i = 0; i < allUsers.length; i++) {
10300                            if (DEBUG_INSTALL) {
10301                                Slog.d(TAG, "    user " + allUsers[i]
10302                                        + " => " + perUserInstalled[i]);
10303                            }
10304                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10305                        }
10306                        // these install state changes will be persisted in the
10307                        // upcoming call to mSettings.writeLPr().
10308                    }
10309                }
10310            }
10311            res.name = pkgName;
10312            res.uid = newPackage.applicationInfo.uid;
10313            res.pkg = newPackage;
10314            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10315            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10316            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10317            //to update install status
10318            mSettings.writeLPr();
10319        }
10320    }
10321
10322    private void installPackageLI(InstallArgs args, boolean newInstall, PackageInstalledInfo res) {
10323        int pFlags = args.flags;
10324        String installerPackageName = args.installerPackageName;
10325        File tmpPackageFile = new File(args.getCodePath());
10326        boolean forwardLocked = ((pFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10327        boolean onSd = ((pFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10328        boolean replace = false;
10329        int scanMode = (onSd ? 0 : SCAN_MONITOR) | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE
10330                | (newInstall ? SCAN_NEW_INSTALL : 0);
10331        // Result object to be returned
10332        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10333
10334        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10335        // Retrieve PackageSettings and parse package
10336        int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10337                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10338                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10339        PackageParser pp = new PackageParser();
10340        pp.setSeparateProcesses(mSeparateProcesses);
10341        pp.setDisplayMetrics(mMetrics);
10342
10343        final PackageParser.Package pkg;
10344        try {
10345            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10346        } catch (PackageParserException e) {
10347            res.setError("Failed parse during installPackageLI", e);
10348            return;
10349        }
10350
10351        // Mark that we have an install time CPU ABI override.
10352        pkg.cpuAbiOverride = args.abiOverride;
10353
10354        String pkgName = res.name = pkg.packageName;
10355        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10356            if ((pFlags&PackageManager.INSTALL_ALLOW_TEST) == 0) {
10357                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10358                return;
10359            }
10360        }
10361
10362        try {
10363            pp.collectCertificates(pkg, parseFlags);
10364            pp.collectManifestDigest(pkg);
10365        } catch (PackageParserException e) {
10366            res.setError("Failed collect during installPackageLI", e);
10367            return;
10368        }
10369
10370        /* If the installer passed in a manifest digest, compare it now. */
10371        if (args.manifestDigest != null) {
10372            if (DEBUG_INSTALL) {
10373                final String parsedManifest = pkg.manifestDigest == null ? "null"
10374                        : pkg.manifestDigest.toString();
10375                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10376                        + parsedManifest);
10377            }
10378
10379            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10380                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10381                return;
10382            }
10383        } else if (DEBUG_INSTALL) {
10384            final String parsedManifest = pkg.manifestDigest == null
10385                    ? "null" : pkg.manifestDigest.toString();
10386            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10387        }
10388
10389        // Get rid of all references to package scan path via parser.
10390        pp = null;
10391        String oldCodePath = null;
10392        boolean systemApp = false;
10393        synchronized (mPackages) {
10394            // Check whether the newly-scanned package wants to define an already-defined perm
10395            int N = pkg.permissions.size();
10396            for (int i = N-1; i >= 0; i--) {
10397                PackageParser.Permission perm = pkg.permissions.get(i);
10398                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10399                if (bp != null) {
10400                    // If the defining package is signed with our cert, it's okay.  This
10401                    // also includes the "updating the same package" case, of course.
10402                    if (compareSignatures(bp.packageSetting.signatures.mSignatures,
10403                            pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
10404                        // If the owning package is the system itself, we log but allow
10405                        // install to proceed; we fail the install on all other permission
10406                        // redefinitions.
10407                        if (!bp.sourcePackage.equals("android")) {
10408                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10409                                    + pkg.packageName + " attempting to redeclare permission "
10410                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10411                            res.origPermission = perm.info.name;
10412                            res.origPackage = bp.sourcePackage;
10413                            return;
10414                        } else {
10415                            Slog.w(TAG, "Package " + pkg.packageName
10416                                    + " attempting to redeclare system permission "
10417                                    + perm.info.name + "; ignoring new declaration");
10418                            pkg.permissions.remove(i);
10419                        }
10420                    }
10421                }
10422            }
10423
10424            // Check if installing already existing package
10425            if ((pFlags&PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10426                String oldName = mSettings.mRenamedPackages.get(pkgName);
10427                if (pkg.mOriginalPackages != null
10428                        && pkg.mOriginalPackages.contains(oldName)
10429                        && mPackages.containsKey(oldName)) {
10430                    // This package is derived from an original package,
10431                    // and this device has been updating from that original
10432                    // name.  We must continue using the original name, so
10433                    // rename the new package here.
10434                    pkg.setPackageName(oldName);
10435                    pkgName = pkg.packageName;
10436                    replace = true;
10437                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10438                            + oldName + " pkgName=" + pkgName);
10439                } else if (mPackages.containsKey(pkgName)) {
10440                    // This package, under its official name, already exists
10441                    // on the device; we should replace it.
10442                    replace = true;
10443                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10444                }
10445            }
10446            PackageSetting ps = mSettings.mPackages.get(pkgName);
10447            if (ps != null) {
10448                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10449                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10450                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10451                    systemApp = (ps.pkg.applicationInfo.flags &
10452                            ApplicationInfo.FLAG_SYSTEM) != 0;
10453                }
10454                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10455            }
10456        }
10457
10458        if (systemApp && onSd) {
10459            // Disable updates to system apps on sdcard
10460            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10461                    "Cannot install updates to system apps on sdcard");
10462            return;
10463        }
10464
10465        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10466            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10467            return;
10468        }
10469
10470        if (replace) {
10471            replacePackageLI(pkg, parseFlags, scanMode, args.user,
10472                    installerPackageName, res);
10473        } else {
10474            installNewPackageLI(pkg, parseFlags, scanMode | SCAN_DELETE_DATA_ON_FAILURES, args.user,
10475                    installerPackageName, res);
10476        }
10477        synchronized (mPackages) {
10478            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10479            if (ps != null) {
10480                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10481            }
10482        }
10483    }
10484
10485    private static boolean isForwardLocked(PackageParser.Package pkg) {
10486        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10487    }
10488
10489    private static boolean isForwardLocked(ApplicationInfo info) {
10490        return (info.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10491    }
10492
10493    private boolean isForwardLocked(PackageSetting ps) {
10494        return (ps.pkgFlags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10495    }
10496
10497    private static boolean isMultiArch(PackageSetting ps) {
10498        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10499    }
10500
10501    private static boolean isMultiArch(ApplicationInfo info) {
10502        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10503    }
10504
10505    private static boolean isExternal(PackageParser.Package pkg) {
10506        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10507    }
10508
10509    private static boolean isExternal(PackageSetting ps) {
10510        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10511    }
10512
10513    private static boolean isExternal(ApplicationInfo info) {
10514        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10515    }
10516
10517    private static boolean isSystemApp(PackageParser.Package pkg) {
10518        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10519    }
10520
10521    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10522        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_PRIVILEGED) != 0;
10523    }
10524
10525    private static boolean isSystemApp(ApplicationInfo info) {
10526        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10527    }
10528
10529    private static boolean isSystemApp(PackageSetting ps) {
10530        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10531    }
10532
10533    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10534        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10535    }
10536
10537    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10538        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10539    }
10540
10541    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10542        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10543    }
10544
10545    private int packageFlagsToInstallFlags(PackageSetting ps) {
10546        int installFlags = 0;
10547        if (isExternal(ps)) {
10548            installFlags |= PackageManager.INSTALL_EXTERNAL;
10549        }
10550        if (isForwardLocked(ps)) {
10551            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10552        }
10553        return installFlags;
10554    }
10555
10556    private void deleteTempPackageFiles() {
10557        final FilenameFilter filter = new FilenameFilter() {
10558            public boolean accept(File dir, String name) {
10559                return name.startsWith("vmdl") && name.endsWith(".tmp");
10560            }
10561        };
10562        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10563            file.delete();
10564        }
10565    }
10566
10567    @Override
10568    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10569            int flags) {
10570        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10571                flags);
10572    }
10573
10574    @Override
10575    public void deletePackage(final String packageName,
10576            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10577        mContext.enforceCallingOrSelfPermission(
10578                android.Manifest.permission.DELETE_PACKAGES, null);
10579        final int uid = Binder.getCallingUid();
10580        if (UserHandle.getUserId(uid) != userId) {
10581            mContext.enforceCallingPermission(
10582                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10583                    "deletePackage for user " + userId);
10584        }
10585        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10586            try {
10587                observer.onPackageDeleted(packageName,
10588                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10589            } catch (RemoteException re) {
10590            }
10591            return;
10592        }
10593
10594        boolean uninstallBlocked = false;
10595        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10596            int[] users = sUserManager.getUserIds();
10597            for (int i = 0; i < users.length; ++i) {
10598                if (getBlockUninstallForUser(packageName, users[i])) {
10599                    uninstallBlocked = true;
10600                    break;
10601                }
10602            }
10603        } else {
10604            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10605        }
10606        if (uninstallBlocked) {
10607            try {
10608                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10609                        null);
10610            } catch (RemoteException re) {
10611            }
10612            return;
10613        }
10614
10615        if (DEBUG_REMOVE) {
10616            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10617        }
10618        // Queue up an async operation since the package deletion may take a little while.
10619        mHandler.post(new Runnable() {
10620            public void run() {
10621                mHandler.removeCallbacks(this);
10622                final int returnCode = deletePackageX(packageName, userId, flags);
10623                if (observer != null) {
10624                    try {
10625                        observer.onPackageDeleted(packageName, returnCode, null);
10626                    } catch (RemoteException e) {
10627                        Log.i(TAG, "Observer no longer exists.");
10628                    } //end catch
10629                } //end if
10630            } //end run
10631        });
10632    }
10633
10634    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10635        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10636                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10637        try {
10638            if (dpm != null && (dpm.packageHasActiveAdmins(packageName, userId)
10639                    || dpm.isDeviceOwner(packageName))) {
10640                return true;
10641            }
10642        } catch (RemoteException e) {
10643        }
10644        return false;
10645    }
10646
10647    /**
10648     *  This method is an internal method that could be get invoked either
10649     *  to delete an installed package or to clean up a failed installation.
10650     *  After deleting an installed package, a broadcast is sent to notify any
10651     *  listeners that the package has been installed. For cleaning up a failed
10652     *  installation, the broadcast is not necessary since the package's
10653     *  installation wouldn't have sent the initial broadcast either
10654     *  The key steps in deleting a package are
10655     *  deleting the package information in internal structures like mPackages,
10656     *  deleting the packages base directories through installd
10657     *  updating mSettings to reflect current status
10658     *  persisting settings for later use
10659     *  sending a broadcast if necessary
10660     */
10661    private int deletePackageX(String packageName, int userId, int flags) {
10662        final PackageRemovedInfo info = new PackageRemovedInfo();
10663        final boolean res;
10664
10665        if (isPackageDeviceAdmin(packageName, userId)) {
10666            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10667            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10668        }
10669
10670        boolean removedForAllUsers = false;
10671        boolean systemUpdate = false;
10672
10673        // for the uninstall-updates case and restricted profiles, remember the per-
10674        // userhandle installed state
10675        int[] allUsers;
10676        boolean[] perUserInstalled;
10677        synchronized (mPackages) {
10678            PackageSetting ps = mSettings.mPackages.get(packageName);
10679            allUsers = sUserManager.getUserIds();
10680            perUserInstalled = new boolean[allUsers.length];
10681            for (int i = 0; i < allUsers.length; i++) {
10682                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10683            }
10684        }
10685
10686        synchronized (mInstallLock) {
10687            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10688            res = deletePackageLI(packageName,
10689                    (flags & PackageManager.DELETE_ALL_USERS) != 0
10690                            ? UserHandle.ALL : new UserHandle(userId),
10691                    true, allUsers, perUserInstalled,
10692                    flags | REMOVE_CHATTY, info, true);
10693            systemUpdate = info.isRemovedPackageSystemUpdate;
10694            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10695                removedForAllUsers = true;
10696            }
10697            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10698                    + " removedForAllUsers=" + removedForAllUsers);
10699        }
10700
10701        if (res) {
10702            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10703
10704            // If the removed package was a system update, the old system package
10705            // was re-enabled; we need to broadcast this information
10706            if (systemUpdate) {
10707                Bundle extras = new Bundle(1);
10708                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10709                        ? info.removedAppId : info.uid);
10710                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10711
10712                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10713                        extras, null, null, null);
10714                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10715                        extras, null, null, null);
10716                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10717                        null, packageName, null, null);
10718            }
10719        }
10720        // Force a gc here.
10721        Runtime.getRuntime().gc();
10722        // Delete the resources here after sending the broadcast to let
10723        // other processes clean up before deleting resources.
10724        if (info.args != null) {
10725            synchronized (mInstallLock) {
10726                info.args.doPostDeleteLI(true);
10727            }
10728        }
10729
10730        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10731    }
10732
10733    static class PackageRemovedInfo {
10734        String removedPackage;
10735        int uid = -1;
10736        int removedAppId = -1;
10737        int[] removedUsers = null;
10738        boolean isRemovedPackageSystemUpdate = false;
10739        // Clean up resources deleted packages.
10740        InstallArgs args = null;
10741
10742        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10743            Bundle extras = new Bundle(1);
10744            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10745            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10746            if (replacing) {
10747                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10748            }
10749            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10750            if (removedPackage != null) {
10751                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10752                        extras, null, null, removedUsers);
10753                if (fullRemove && !replacing) {
10754                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10755                            extras, null, null, removedUsers);
10756                }
10757            }
10758            if (removedAppId >= 0) {
10759                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10760                        removedUsers);
10761            }
10762        }
10763    }
10764
10765    /*
10766     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10767     * flag is not set, the data directory is removed as well.
10768     * make sure this flag is set for partially installed apps. If not its meaningless to
10769     * delete a partially installed application.
10770     */
10771    private void removePackageDataLI(PackageSetting ps,
10772            int[] allUserHandles, boolean[] perUserInstalled,
10773            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10774        String packageName = ps.name;
10775        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10776        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10777        // Retrieve object to delete permissions for shared user later on
10778        final PackageSetting deletedPs;
10779        // reader
10780        synchronized (mPackages) {
10781            deletedPs = mSettings.mPackages.get(packageName);
10782            if (outInfo != null) {
10783                outInfo.removedPackage = packageName;
10784                outInfo.removedUsers = deletedPs != null
10785                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10786                        : null;
10787            }
10788        }
10789        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10790            removeDataDirsLI(packageName);
10791            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10792        }
10793        // writer
10794        synchronized (mPackages) {
10795            if (deletedPs != null) {
10796                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10797                    if (outInfo != null) {
10798                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10799                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10800                    }
10801                    if (deletedPs != null) {
10802                        updatePermissionsLPw(deletedPs.name, null, 0);
10803                        if (deletedPs.sharedUser != null) {
10804                            // remove permissions associated with package
10805                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10806                        }
10807                    }
10808                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10809                }
10810                // make sure to preserve per-user disabled state if this removal was just
10811                // a downgrade of a system app to the factory package
10812                if (allUserHandles != null && perUserInstalled != null) {
10813                    if (DEBUG_REMOVE) {
10814                        Slog.d(TAG, "Propagating install state across downgrade");
10815                    }
10816                    for (int i = 0; i < allUserHandles.length; i++) {
10817                        if (DEBUG_REMOVE) {
10818                            Slog.d(TAG, "    user " + allUserHandles[i]
10819                                    + " => " + perUserInstalled[i]);
10820                        }
10821                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10822                    }
10823                }
10824            }
10825            // can downgrade to reader
10826            if (writeSettings) {
10827                // Save settings now
10828                mSettings.writeLPr();
10829            }
10830        }
10831        if (outInfo != null) {
10832            // A user ID was deleted here. Go through all users and remove it
10833            // from KeyStore.
10834            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10835        }
10836    }
10837
10838    static boolean locationIsPrivileged(File path) {
10839        try {
10840            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10841                    .getCanonicalPath();
10842            return path.getCanonicalPath().startsWith(privilegedAppDir);
10843        } catch (IOException e) {
10844            Slog.e(TAG, "Unable to access code path " + path);
10845        }
10846        return false;
10847    }
10848
10849    /*
10850     * Tries to delete system package.
10851     */
10852    private boolean deleteSystemPackageLI(PackageSetting newPs,
10853            int[] allUserHandles, boolean[] perUserInstalled,
10854            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10855        final boolean applyUserRestrictions
10856                = (allUserHandles != null) && (perUserInstalled != null);
10857        PackageSetting disabledPs = null;
10858        // Confirm if the system package has been updated
10859        // An updated system app can be deleted. This will also have to restore
10860        // the system pkg from system partition
10861        // reader
10862        synchronized (mPackages) {
10863            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10864        }
10865        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10866                + " disabledPs=" + disabledPs);
10867        if (disabledPs == null) {
10868            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10869            return false;
10870        } else if (DEBUG_REMOVE) {
10871            Slog.d(TAG, "Deleting system pkg from data partition");
10872        }
10873        if (DEBUG_REMOVE) {
10874            if (applyUserRestrictions) {
10875                Slog.d(TAG, "Remembering install states:");
10876                for (int i = 0; i < allUserHandles.length; i++) {
10877                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10878                }
10879            }
10880        }
10881        // Delete the updated package
10882        outInfo.isRemovedPackageSystemUpdate = true;
10883        if (disabledPs.versionCode < newPs.versionCode) {
10884            // Delete data for downgrades
10885            flags &= ~PackageManager.DELETE_KEEP_DATA;
10886        } else {
10887            // Preserve data by setting flag
10888            flags |= PackageManager.DELETE_KEEP_DATA;
10889        }
10890        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10891                allUserHandles, perUserInstalled, outInfo, writeSettings);
10892        if (!ret) {
10893            return false;
10894        }
10895        // writer
10896        synchronized (mPackages) {
10897            // Reinstate the old system package
10898            mSettings.enableSystemPackageLPw(newPs.name);
10899            // Remove any native libraries from the upgraded package.
10900            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10901        }
10902        // Install the system package
10903        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10904        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10905        if (locationIsPrivileged(disabledPs.codePath)) {
10906            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10907        }
10908
10909        final PackageParser.Package newPkg;
10910        try {
10911            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_MONITOR | SCAN_NO_PATHS, 0, null);
10912        } catch (PackageManagerException e) {
10913            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10914            return false;
10915        }
10916
10917        // writer
10918        synchronized (mPackages) {
10919            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10920            updatePermissionsLPw(newPkg.packageName, newPkg,
10921                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10922            if (applyUserRestrictions) {
10923                if (DEBUG_REMOVE) {
10924                    Slog.d(TAG, "Propagating install state across reinstall");
10925                }
10926                for (int i = 0; i < allUserHandles.length; i++) {
10927                    if (DEBUG_REMOVE) {
10928                        Slog.d(TAG, "    user " + allUserHandles[i]
10929                                + " => " + perUserInstalled[i]);
10930                    }
10931                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10932                }
10933                // Regardless of writeSettings we need to ensure that this restriction
10934                // state propagation is persisted
10935                mSettings.writeAllUsersPackageRestrictionsLPr();
10936            }
10937            // can downgrade to reader here
10938            if (writeSettings) {
10939                mSettings.writeLPr();
10940            }
10941        }
10942        return true;
10943    }
10944
10945    private boolean deleteInstalledPackageLI(PackageSetting ps,
10946            boolean deleteCodeAndResources, int flags,
10947            int[] allUserHandles, boolean[] perUserInstalled,
10948            PackageRemovedInfo outInfo, boolean writeSettings) {
10949        if (outInfo != null) {
10950            outInfo.uid = ps.appId;
10951        }
10952
10953        // Delete package data from internal structures and also remove data if flag is set
10954        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10955
10956        // Delete application code and resources
10957        if (deleteCodeAndResources && (outInfo != null)) {
10958            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
10959                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
10960                    getAppDexInstructionSets(ps), isMultiArch(ps));
10961        }
10962        return true;
10963    }
10964
10965    @Override
10966    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
10967            int userId) {
10968        mContext.enforceCallingOrSelfPermission(
10969                android.Manifest.permission.DELETE_PACKAGES, null);
10970        synchronized (mPackages) {
10971            PackageSetting ps = mSettings.mPackages.get(packageName);
10972            if (ps == null) {
10973                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
10974                return false;
10975            }
10976            if (!ps.getInstalled(userId)) {
10977                // Can't block uninstall for an app that is not installed or enabled.
10978                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
10979                return false;
10980            }
10981            ps.setBlockUninstall(blockUninstall, userId);
10982            mSettings.writePackageRestrictionsLPr(userId);
10983        }
10984        return true;
10985    }
10986
10987    @Override
10988    public boolean getBlockUninstallForUser(String packageName, int userId) {
10989        synchronized (mPackages) {
10990            PackageSetting ps = mSettings.mPackages.get(packageName);
10991            if (ps == null) {
10992                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
10993                return false;
10994            }
10995            return ps.getBlockUninstall(userId);
10996        }
10997    }
10998
10999    /*
11000     * This method handles package deletion in general
11001     */
11002    private boolean deletePackageLI(String packageName, UserHandle user,
11003            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11004            int flags, PackageRemovedInfo outInfo,
11005            boolean writeSettings) {
11006        if (packageName == null) {
11007            Slog.w(TAG, "Attempt to delete null packageName.");
11008            return false;
11009        }
11010        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11011        PackageSetting ps;
11012        boolean dataOnly = false;
11013        int removeUser = -1;
11014        int appId = -1;
11015        synchronized (mPackages) {
11016            ps = mSettings.mPackages.get(packageName);
11017            if (ps == null) {
11018                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11019                return false;
11020            }
11021            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11022                    && user.getIdentifier() != UserHandle.USER_ALL) {
11023                // The caller is asking that the package only be deleted for a single
11024                // user.  To do this, we just mark its uninstalled state and delete
11025                // its data.  If this is a system app, we only allow this to happen if
11026                // they have set the special DELETE_SYSTEM_APP which requests different
11027                // semantics than normal for uninstalling system apps.
11028                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11029                ps.setUserState(user.getIdentifier(),
11030                        COMPONENT_ENABLED_STATE_DEFAULT,
11031                        false, //installed
11032                        true,  //stopped
11033                        true,  //notLaunched
11034                        false, //hidden
11035                        null, null, null,
11036                        false // blockUninstall
11037                        );
11038                if (!isSystemApp(ps)) {
11039                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11040                        // Other user still have this package installed, so all
11041                        // we need to do is clear this user's data and save that
11042                        // it is uninstalled.
11043                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11044                        removeUser = user.getIdentifier();
11045                        appId = ps.appId;
11046                        mSettings.writePackageRestrictionsLPr(removeUser);
11047                    } else {
11048                        // We need to set it back to 'installed' so the uninstall
11049                        // broadcasts will be sent correctly.
11050                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11051                        ps.setInstalled(true, user.getIdentifier());
11052                    }
11053                } else {
11054                    // This is a system app, so we assume that the
11055                    // other users still have this package installed, so all
11056                    // we need to do is clear this user's data and save that
11057                    // it is uninstalled.
11058                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11059                    removeUser = user.getIdentifier();
11060                    appId = ps.appId;
11061                    mSettings.writePackageRestrictionsLPr(removeUser);
11062                }
11063            }
11064        }
11065
11066        if (removeUser >= 0) {
11067            // From above, we determined that we are deleting this only
11068            // for a single user.  Continue the work here.
11069            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11070            if (outInfo != null) {
11071                outInfo.removedPackage = packageName;
11072                outInfo.removedAppId = appId;
11073                outInfo.removedUsers = new int[] {removeUser};
11074            }
11075            mInstaller.clearUserData(packageName, removeUser);
11076            removeKeystoreDataIfNeeded(removeUser, appId);
11077            schedulePackageCleaning(packageName, removeUser, false);
11078            return true;
11079        }
11080
11081        if (dataOnly) {
11082            // Delete application data first
11083            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11084            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11085            return true;
11086        }
11087
11088        boolean ret = false;
11089        if (isSystemApp(ps)) {
11090            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11091            // When an updated system application is deleted we delete the existing resources as well and
11092            // fall back to existing code in system partition
11093            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11094                    flags, outInfo, writeSettings);
11095        } else {
11096            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11097            // Kill application pre-emptively especially for apps on sd.
11098            killApplication(packageName, ps.appId, "uninstall pkg");
11099            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11100                    allUserHandles, perUserInstalled,
11101                    outInfo, writeSettings);
11102        }
11103
11104        return ret;
11105    }
11106
11107    private final class ClearStorageConnection implements ServiceConnection {
11108        IMediaContainerService mContainerService;
11109
11110        @Override
11111        public void onServiceConnected(ComponentName name, IBinder service) {
11112            synchronized (this) {
11113                mContainerService = IMediaContainerService.Stub.asInterface(service);
11114                notifyAll();
11115            }
11116        }
11117
11118        @Override
11119        public void onServiceDisconnected(ComponentName name) {
11120        }
11121    }
11122
11123    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11124        final boolean mounted;
11125        if (Environment.isExternalStorageEmulated()) {
11126            mounted = true;
11127        } else {
11128            final String status = Environment.getExternalStorageState();
11129
11130            mounted = status.equals(Environment.MEDIA_MOUNTED)
11131                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11132        }
11133
11134        if (!mounted) {
11135            return;
11136        }
11137
11138        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11139        int[] users;
11140        if (userId == UserHandle.USER_ALL) {
11141            users = sUserManager.getUserIds();
11142        } else {
11143            users = new int[] { userId };
11144        }
11145        final ClearStorageConnection conn = new ClearStorageConnection();
11146        if (mContext.bindServiceAsUser(
11147                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11148            try {
11149                for (int curUser : users) {
11150                    long timeout = SystemClock.uptimeMillis() + 5000;
11151                    synchronized (conn) {
11152                        long now = SystemClock.uptimeMillis();
11153                        while (conn.mContainerService == null && now < timeout) {
11154                            try {
11155                                conn.wait(timeout - now);
11156                            } catch (InterruptedException e) {
11157                            }
11158                        }
11159                    }
11160                    if (conn.mContainerService == null) {
11161                        return;
11162                    }
11163
11164                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11165                    clearDirectory(conn.mContainerService,
11166                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11167                    if (allData) {
11168                        clearDirectory(conn.mContainerService,
11169                                userEnv.buildExternalStorageAppDataDirs(packageName));
11170                        clearDirectory(conn.mContainerService,
11171                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11172                    }
11173                }
11174            } finally {
11175                mContext.unbindService(conn);
11176            }
11177        }
11178    }
11179
11180    @Override
11181    public void clearApplicationUserData(final String packageName,
11182            final IPackageDataObserver observer, final int userId) {
11183        mContext.enforceCallingOrSelfPermission(
11184                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11185        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, "clear application data");
11186        // Queue up an async operation since the package deletion may take a little while.
11187        mHandler.post(new Runnable() {
11188            public void run() {
11189                mHandler.removeCallbacks(this);
11190                final boolean succeeded;
11191                synchronized (mInstallLock) {
11192                    succeeded = clearApplicationUserDataLI(packageName, userId);
11193                }
11194                clearExternalStorageDataSync(packageName, userId, true);
11195                if (succeeded) {
11196                    // invoke DeviceStorageMonitor's update method to clear any notifications
11197                    DeviceStorageMonitorInternal
11198                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11199                    if (dsm != null) {
11200                        dsm.checkMemory();
11201                    }
11202                }
11203                if(observer != null) {
11204                    try {
11205                        observer.onRemoveCompleted(packageName, succeeded);
11206                    } catch (RemoteException e) {
11207                        Log.i(TAG, "Observer no longer exists.");
11208                    }
11209                } //end if observer
11210            } //end run
11211        });
11212    }
11213
11214    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11215        if (packageName == null) {
11216            Slog.w(TAG, "Attempt to delete null packageName.");
11217            return false;
11218        }
11219        PackageParser.Package p;
11220        boolean dataOnly = false;
11221        final int appId;
11222        synchronized (mPackages) {
11223            p = mPackages.get(packageName);
11224            if (p == null) {
11225                dataOnly = true;
11226                PackageSetting ps = mSettings.mPackages.get(packageName);
11227                if ((ps == null) || (ps.pkg == null)) {
11228                    Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11229                    return false;
11230                }
11231                p = ps.pkg;
11232            }
11233            if (!dataOnly) {
11234                // need to check this only for fully installed applications
11235                if (p == null) {
11236                    Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11237                    return false;
11238                }
11239                final ApplicationInfo applicationInfo = p.applicationInfo;
11240                if (applicationInfo == null) {
11241                    Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11242                    return false;
11243                }
11244            }
11245            if (p != null && p.applicationInfo != null) {
11246                appId = p.applicationInfo.uid;
11247            } else {
11248                appId = -1;
11249            }
11250        }
11251        int retCode = mInstaller.clearUserData(packageName, userId);
11252        if (retCode < 0) {
11253            Slog.w(TAG, "Couldn't remove cache files for package: "
11254                    + packageName);
11255            return false;
11256        }
11257        removeKeystoreDataIfNeeded(userId, appId);
11258        return true;
11259    }
11260
11261    /**
11262     * Remove entries from the keystore daemon. Will only remove it if the
11263     * {@code appId} is valid.
11264     */
11265    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11266        if (appId < 0) {
11267            return;
11268        }
11269
11270        final KeyStore keyStore = KeyStore.getInstance();
11271        if (keyStore != null) {
11272            if (userId == UserHandle.USER_ALL) {
11273                for (final int individual : sUserManager.getUserIds()) {
11274                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11275                }
11276            } else {
11277                keyStore.clearUid(UserHandle.getUid(userId, appId));
11278            }
11279        } else {
11280            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11281        }
11282    }
11283
11284    @Override
11285    public void deleteApplicationCacheFiles(final String packageName,
11286            final IPackageDataObserver observer) {
11287        mContext.enforceCallingOrSelfPermission(
11288                android.Manifest.permission.DELETE_CACHE_FILES, null);
11289        // Queue up an async operation since the package deletion may take a little while.
11290        final int userId = UserHandle.getCallingUserId();
11291        mHandler.post(new Runnable() {
11292            public void run() {
11293                mHandler.removeCallbacks(this);
11294                final boolean succeded;
11295                synchronized (mInstallLock) {
11296                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11297                }
11298                clearExternalStorageDataSync(packageName, userId, false);
11299                if(observer != null) {
11300                    try {
11301                        observer.onRemoveCompleted(packageName, succeded);
11302                    } catch (RemoteException e) {
11303                        Log.i(TAG, "Observer no longer exists.");
11304                    }
11305                } //end if observer
11306            } //end run
11307        });
11308    }
11309
11310    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11311        if (packageName == null) {
11312            Slog.w(TAG, "Attempt to delete null packageName.");
11313            return false;
11314        }
11315        PackageParser.Package p;
11316        synchronized (mPackages) {
11317            p = mPackages.get(packageName);
11318        }
11319        if (p == null) {
11320            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11321            return false;
11322        }
11323        final ApplicationInfo applicationInfo = p.applicationInfo;
11324        if (applicationInfo == null) {
11325            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11326            return false;
11327        }
11328        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11329        if (retCode < 0) {
11330            Slog.w(TAG, "Couldn't remove cache files for package: "
11331                       + packageName + " u" + userId);
11332            return false;
11333        }
11334        return true;
11335    }
11336
11337    @Override
11338    public void getPackageSizeInfo(final String packageName, int userHandle,
11339            final IPackageStatsObserver observer) {
11340        mContext.enforceCallingOrSelfPermission(
11341                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11342        if (packageName == null) {
11343            throw new IllegalArgumentException("Attempt to get size of null packageName");
11344        }
11345
11346        PackageStats stats = new PackageStats(packageName, userHandle);
11347
11348        /*
11349         * Queue up an async operation since the package measurement may take a
11350         * little while.
11351         */
11352        Message msg = mHandler.obtainMessage(INIT_COPY);
11353        msg.obj = new MeasureParams(stats, observer);
11354        mHandler.sendMessage(msg);
11355    }
11356
11357    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11358            PackageStats pStats) {
11359        if (packageName == null) {
11360            Slog.w(TAG, "Attempt to get size of null packageName.");
11361            return false;
11362        }
11363        PackageParser.Package p;
11364        boolean dataOnly = false;
11365        String libDirRoot = null;
11366        String asecPath = null;
11367        PackageSetting ps = null;
11368        synchronized (mPackages) {
11369            p = mPackages.get(packageName);
11370            ps = mSettings.mPackages.get(packageName);
11371            if(p == null) {
11372                dataOnly = true;
11373                if((ps == null) || (ps.pkg == null)) {
11374                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11375                    return false;
11376                }
11377                p = ps.pkg;
11378            }
11379            if (ps != null) {
11380                libDirRoot = ps.legacyNativeLibraryPathString;
11381            }
11382            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11383                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11384                if (secureContainerId != null) {
11385                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11386                }
11387            }
11388        }
11389        String publicSrcDir = null;
11390        if(!dataOnly) {
11391            final ApplicationInfo applicationInfo = p.applicationInfo;
11392            if (applicationInfo == null) {
11393                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11394                return false;
11395            }
11396            if (isForwardLocked(p)) {
11397                publicSrcDir = applicationInfo.getBaseResourcePath();
11398            }
11399        }
11400        // TODO: extend to measure size of split APKs
11401        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11402        // not just the first level.
11403        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11404        // just the primary.
11405        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11406        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11407                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11408        if (res < 0) {
11409            return false;
11410        }
11411
11412        // Fix-up for forward-locked applications in ASEC containers.
11413        if (!isExternal(p)) {
11414            pStats.codeSize += pStats.externalCodeSize;
11415            pStats.externalCodeSize = 0L;
11416        }
11417
11418        return true;
11419    }
11420
11421
11422    @Override
11423    public void addPackageToPreferred(String packageName) {
11424        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11425    }
11426
11427    @Override
11428    public void removePackageFromPreferred(String packageName) {
11429        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11430    }
11431
11432    @Override
11433    public List<PackageInfo> getPreferredPackages(int flags) {
11434        return new ArrayList<PackageInfo>();
11435    }
11436
11437    private int getUidTargetSdkVersionLockedLPr(int uid) {
11438        Object obj = mSettings.getUserIdLPr(uid);
11439        if (obj instanceof SharedUserSetting) {
11440            final SharedUserSetting sus = (SharedUserSetting) obj;
11441            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11442            final Iterator<PackageSetting> it = sus.packages.iterator();
11443            while (it.hasNext()) {
11444                final PackageSetting ps = it.next();
11445                if (ps.pkg != null) {
11446                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11447                    if (v < vers) vers = v;
11448                }
11449            }
11450            return vers;
11451        } else if (obj instanceof PackageSetting) {
11452            final PackageSetting ps = (PackageSetting) obj;
11453            if (ps.pkg != null) {
11454                return ps.pkg.applicationInfo.targetSdkVersion;
11455            }
11456        }
11457        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11458    }
11459
11460    @Override
11461    public void addPreferredActivity(IntentFilter filter, int match,
11462            ComponentName[] set, ComponentName activity, int userId) {
11463        addPreferredActivityInternal(filter, match, set, activity, true, userId);
11464    }
11465
11466    private void addPreferredActivityInternal(IntentFilter filter, int match,
11467            ComponentName[] set, ComponentName activity, boolean always, int userId) {
11468        // writer
11469        int callingUid = Binder.getCallingUid();
11470        enforceCrossUserPermission(callingUid, userId, true, "add preferred activity");
11471        if (filter.countActions() == 0) {
11472            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11473            return;
11474        }
11475        synchronized (mPackages) {
11476            if (mContext.checkCallingOrSelfPermission(
11477                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11478                    != PackageManager.PERMISSION_GRANTED) {
11479                if (getUidTargetSdkVersionLockedLPr(callingUid)
11480                        < Build.VERSION_CODES.FROYO) {
11481                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11482                            + callingUid);
11483                    return;
11484                }
11485                mContext.enforceCallingOrSelfPermission(
11486                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11487            }
11488
11489            Slog.i(TAG, "Adding preferred activity " + activity + " for user " + userId + " :");
11490            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11491            mSettings.editPreferredActivitiesLPw(userId).addFilter(
11492                    new PreferredActivity(filter, match, set, activity, always));
11493            mSettings.writePackageRestrictionsLPr(userId);
11494        }
11495    }
11496
11497    @Override
11498    public void replacePreferredActivity(IntentFilter filter, int match,
11499            ComponentName[] set, ComponentName activity, int userId) {
11500        if (filter.countActions() != 1) {
11501            throw new IllegalArgumentException(
11502                    "replacePreferredActivity expects filter to have only 1 action.");
11503        }
11504        if (filter.countDataAuthorities() != 0
11505                || filter.countDataPaths() != 0
11506                || filter.countDataSchemes() > 1
11507                || filter.countDataTypes() != 0) {
11508            throw new IllegalArgumentException(
11509                    "replacePreferredActivity expects filter to have no data authorities, " +
11510                    "paths, or types; and at most one scheme.");
11511        }
11512
11513        final int callingUid = Binder.getCallingUid();
11514        enforceCrossUserPermission(callingUid, userId, true, "replace preferred activity");
11515        final int callingUserId = UserHandle.getUserId(callingUid);
11516        synchronized (mPackages) {
11517            if (mContext.checkCallingOrSelfPermission(
11518                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11519                    != PackageManager.PERMISSION_GRANTED) {
11520                if (getUidTargetSdkVersionLockedLPr(callingUid)
11521                        < Build.VERSION_CODES.FROYO) {
11522                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11523                            + Binder.getCallingUid());
11524                    return;
11525                }
11526                mContext.enforceCallingOrSelfPermission(
11527                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11528            }
11529
11530            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(callingUserId);
11531            if (pir != null) {
11532                Intent intent = new Intent(filter.getAction(0)).addCategory(filter.getCategory(0));
11533                if (filter.countDataSchemes() == 1) {
11534                    Uri.Builder builder = new Uri.Builder();
11535                    builder.scheme(filter.getDataScheme(0));
11536                    intent.setData(builder.build());
11537                }
11538                List<PreferredActivity> matches = pir.queryIntent(
11539                        intent, null, true, callingUserId);
11540                if (DEBUG_PREFERRED) {
11541                    Slog.i(TAG, matches.size() + " preferred matches for " + intent);
11542                }
11543                for (int i = 0; i < matches.size(); i++) {
11544                    PreferredActivity pa = matches.get(i);
11545                    if (DEBUG_PREFERRED) {
11546                        Slog.i(TAG, "Removing preferred activity "
11547                                + pa.mPref.mComponent + ":");
11548                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11549                    }
11550                    pir.removeFilter(pa);
11551                }
11552            }
11553            addPreferredActivityInternal(filter, match, set, activity, true, callingUserId);
11554        }
11555    }
11556
11557    @Override
11558    public void clearPackagePreferredActivities(String packageName) {
11559        final int uid = Binder.getCallingUid();
11560        // writer
11561        synchronized (mPackages) {
11562            PackageParser.Package pkg = mPackages.get(packageName);
11563            if (pkg == null || pkg.applicationInfo.uid != uid) {
11564                if (mContext.checkCallingOrSelfPermission(
11565                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11566                        != PackageManager.PERMISSION_GRANTED) {
11567                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11568                            < Build.VERSION_CODES.FROYO) {
11569                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11570                                + Binder.getCallingUid());
11571                        return;
11572                    }
11573                    mContext.enforceCallingOrSelfPermission(
11574                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11575                }
11576            }
11577
11578            int user = UserHandle.getCallingUserId();
11579            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11580                mSettings.writePackageRestrictionsLPr(user);
11581                scheduleWriteSettingsLocked();
11582            }
11583        }
11584    }
11585
11586    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11587    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11588        ArrayList<PreferredActivity> removed = null;
11589        boolean changed = false;
11590        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11591            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11592            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11593            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11594                continue;
11595            }
11596            Iterator<PreferredActivity> it = pir.filterIterator();
11597            while (it.hasNext()) {
11598                PreferredActivity pa = it.next();
11599                // Mark entry for removal only if it matches the package name
11600                // and the entry is of type "always".
11601                if (packageName == null ||
11602                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11603                                && pa.mPref.mAlways)) {
11604                    if (removed == null) {
11605                        removed = new ArrayList<PreferredActivity>();
11606                    }
11607                    removed.add(pa);
11608                }
11609            }
11610            if (removed != null) {
11611                for (int j=0; j<removed.size(); j++) {
11612                    PreferredActivity pa = removed.get(j);
11613                    pir.removeFilter(pa);
11614                }
11615                changed = true;
11616            }
11617        }
11618        return changed;
11619    }
11620
11621    @Override
11622    public void resetPreferredActivities(int userId) {
11623        mContext.enforceCallingOrSelfPermission(
11624                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11625        // writer
11626        synchronized (mPackages) {
11627            int user = UserHandle.getCallingUserId();
11628            clearPackagePreferredActivitiesLPw(null, user);
11629            mSettings.readDefaultPreferredAppsLPw(this, user);
11630            mSettings.writePackageRestrictionsLPr(user);
11631            scheduleWriteSettingsLocked();
11632        }
11633    }
11634
11635    @Override
11636    public int getPreferredActivities(List<IntentFilter> outFilters,
11637            List<ComponentName> outActivities, String packageName) {
11638
11639        int num = 0;
11640        final int userId = UserHandle.getCallingUserId();
11641        // reader
11642        synchronized (mPackages) {
11643            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11644            if (pir != null) {
11645                final Iterator<PreferredActivity> it = pir.filterIterator();
11646                while (it.hasNext()) {
11647                    final PreferredActivity pa = it.next();
11648                    if (packageName == null
11649                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11650                                    && pa.mPref.mAlways)) {
11651                        if (outFilters != null) {
11652                            outFilters.add(new IntentFilter(pa));
11653                        }
11654                        if (outActivities != null) {
11655                            outActivities.add(pa.mPref.mComponent);
11656                        }
11657                    }
11658                }
11659            }
11660        }
11661
11662        return num;
11663    }
11664
11665    @Override
11666    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11667            int userId) {
11668        int callingUid = Binder.getCallingUid();
11669        if (callingUid != Process.SYSTEM_UID) {
11670            throw new SecurityException(
11671                    "addPersistentPreferredActivity can only be run by the system");
11672        }
11673        if (filter.countActions() == 0) {
11674            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11675            return;
11676        }
11677        synchronized (mPackages) {
11678            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11679                    " :");
11680            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11681            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11682                    new PersistentPreferredActivity(filter, activity));
11683            mSettings.writePackageRestrictionsLPr(userId);
11684        }
11685    }
11686
11687    @Override
11688    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11689        int callingUid = Binder.getCallingUid();
11690        if (callingUid != Process.SYSTEM_UID) {
11691            throw new SecurityException(
11692                    "clearPackagePersistentPreferredActivities can only be run by the system");
11693        }
11694        ArrayList<PersistentPreferredActivity> removed = null;
11695        boolean changed = false;
11696        synchronized (mPackages) {
11697            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11698                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11699                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11700                        .valueAt(i);
11701                if (userId != thisUserId) {
11702                    continue;
11703                }
11704                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11705                while (it.hasNext()) {
11706                    PersistentPreferredActivity ppa = it.next();
11707                    // Mark entry for removal only if it matches the package name.
11708                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11709                        if (removed == null) {
11710                            removed = new ArrayList<PersistentPreferredActivity>();
11711                        }
11712                        removed.add(ppa);
11713                    }
11714                }
11715                if (removed != null) {
11716                    for (int j=0; j<removed.size(); j++) {
11717                        PersistentPreferredActivity ppa = removed.get(j);
11718                        ppir.removeFilter(ppa);
11719                    }
11720                    changed = true;
11721                }
11722            }
11723
11724            if (changed) {
11725                mSettings.writePackageRestrictionsLPr(userId);
11726            }
11727        }
11728    }
11729
11730    @Override
11731    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11732            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11733        mContext.enforceCallingOrSelfPermission(
11734                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11735        int callingUid = Binder.getCallingUid();
11736        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11737        if (intentFilter.countActions() == 0) {
11738            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11739            return;
11740        }
11741        synchronized (mPackages) {
11742            CrossProfileIntentFilter filter = new CrossProfileIntentFilter(intentFilter,
11743                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11744            mSettings.editCrossProfileIntentResolverLPw(sourceUserId).addFilter(filter);
11745            mSettings.writePackageRestrictionsLPr(sourceUserId);
11746        }
11747    }
11748
11749    @Override
11750    public void addCrossProfileIntentsForPackage(String packageName,
11751            int sourceUserId, int targetUserId) {
11752        mContext.enforceCallingOrSelfPermission(
11753                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11754        mSettings.addCrossProfilePackage(packageName, sourceUserId, targetUserId);
11755        mSettings.writePackageRestrictionsLPr(sourceUserId);
11756    }
11757
11758    @Override
11759    public void removeCrossProfileIntentsForPackage(String packageName,
11760            int sourceUserId, int targetUserId) {
11761        mContext.enforceCallingOrSelfPermission(
11762                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11763        mSettings.removeCrossProfilePackage(packageName, sourceUserId, targetUserId);
11764        mSettings.writePackageRestrictionsLPr(sourceUserId);
11765    }
11766
11767    @Override
11768    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11769            int ownerUserId) {
11770        mContext.enforceCallingOrSelfPermission(
11771                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11772        int callingUid = Binder.getCallingUid();
11773        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11774        int callingUserId = UserHandle.getUserId(callingUid);
11775        synchronized (mPackages) {
11776            CrossProfileIntentResolver resolver =
11777                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11778            HashSet<CrossProfileIntentFilter> set =
11779                    new HashSet<CrossProfileIntentFilter>(resolver.filterSet());
11780            for (CrossProfileIntentFilter filter : set) {
11781                if (filter.getOwnerPackage().equals(ownerPackage)
11782                        && filter.getOwnerUserId() == callingUserId) {
11783                    resolver.removeFilter(filter);
11784                }
11785            }
11786            mSettings.writePackageRestrictionsLPr(sourceUserId);
11787        }
11788    }
11789
11790    // Enforcing that callingUid is owning pkg on userId
11791    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11792        // The system owns everything.
11793        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11794            return;
11795        }
11796        int callingUserId = UserHandle.getUserId(callingUid);
11797        if (callingUserId != userId) {
11798            throw new SecurityException("calling uid " + callingUid
11799                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11800                    + callingUserId);
11801        }
11802        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11803        if (pi == null) {
11804            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11805                    + callingUserId);
11806        }
11807        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11808            throw new SecurityException("Calling uid " + callingUid
11809                    + " does not own package " + pkg);
11810        }
11811    }
11812
11813    @Override
11814    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11815        Intent intent = new Intent(Intent.ACTION_MAIN);
11816        intent.addCategory(Intent.CATEGORY_HOME);
11817
11818        final int callingUserId = UserHandle.getCallingUserId();
11819        List<ResolveInfo> list = queryIntentActivities(intent, null,
11820                PackageManager.GET_META_DATA, callingUserId);
11821        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11822                true, false, false, callingUserId);
11823
11824        allHomeCandidates.clear();
11825        if (list != null) {
11826            for (ResolveInfo ri : list) {
11827                allHomeCandidates.add(ri);
11828            }
11829        }
11830        return (preferred == null || preferred.activityInfo == null)
11831                ? null
11832                : new ComponentName(preferred.activityInfo.packageName,
11833                        preferred.activityInfo.name);
11834    }
11835
11836    /**
11837     * Check if calling UID is the current home app. This handles both the case
11838     * where the user has selected a specific home app, and where there is only
11839     * one home app.
11840     */
11841    public boolean checkCallerIsHomeApp() {
11842        final Intent intent = new Intent(Intent.ACTION_MAIN);
11843        intent.addCategory(Intent.CATEGORY_HOME);
11844
11845        final int callingUid = Binder.getCallingUid();
11846        final int callingUserId = UserHandle.getCallingUserId();
11847        final List<ResolveInfo> allHomes = queryIntentActivities(intent, null, 0, callingUserId);
11848        final ResolveInfo preferredHome = findPreferredActivity(intent, null, 0, allHomes, 0, true,
11849                false, false, callingUserId);
11850
11851        if (preferredHome != null) {
11852            if (callingUid == preferredHome.activityInfo.applicationInfo.uid) {
11853                return true;
11854            }
11855        } else {
11856            for (ResolveInfo info : allHomes) {
11857                if (callingUid == info.activityInfo.applicationInfo.uid) {
11858                    return true;
11859                }
11860            }
11861        }
11862
11863        return false;
11864    }
11865
11866    /**
11867     * Enforce that calling UID is the current home app. This handles both the
11868     * case where the user has selected a specific home app, and where there is
11869     * only one home app.
11870     */
11871    public void enforceCallerIsHomeApp() {
11872        if (!checkCallerIsHomeApp()) {
11873            throw new SecurityException("Caller is not currently selected home app");
11874        }
11875    }
11876
11877    @Override
11878    public void setApplicationEnabledSetting(String appPackageName,
11879            int newState, int flags, int userId, String callingPackage) {
11880        if (!sUserManager.exists(userId)) return;
11881        if (callingPackage == null) {
11882            callingPackage = Integer.toString(Binder.getCallingUid());
11883        }
11884        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11885    }
11886
11887    @Override
11888    public void setComponentEnabledSetting(ComponentName componentName,
11889            int newState, int flags, int userId) {
11890        if (!sUserManager.exists(userId)) return;
11891        setEnabledSetting(componentName.getPackageName(),
11892                componentName.getClassName(), newState, flags, userId, null);
11893    }
11894
11895    private void setEnabledSetting(final String packageName, String className, int newState,
11896            final int flags, int userId, String callingPackage) {
11897        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11898              || newState == COMPONENT_ENABLED_STATE_ENABLED
11899              || newState == COMPONENT_ENABLED_STATE_DISABLED
11900              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11901              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11902            throw new IllegalArgumentException("Invalid new component state: "
11903                    + newState);
11904        }
11905        PackageSetting pkgSetting;
11906        final int uid = Binder.getCallingUid();
11907        final int permission = mContext.checkCallingOrSelfPermission(
11908                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11909        enforceCrossUserPermission(uid, userId, false, "set enabled");
11910        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11911        boolean sendNow = false;
11912        boolean isApp = (className == null);
11913        String componentName = isApp ? packageName : className;
11914        int packageUid = -1;
11915        ArrayList<String> components;
11916
11917        // writer
11918        synchronized (mPackages) {
11919            pkgSetting = mSettings.mPackages.get(packageName);
11920            if (pkgSetting == null) {
11921                if (className == null) {
11922                    throw new IllegalArgumentException(
11923                            "Unknown package: " + packageName);
11924                }
11925                throw new IllegalArgumentException(
11926                        "Unknown component: " + packageName
11927                        + "/" + className);
11928            }
11929            // Allow root and verify that userId is not being specified by a different user
11930            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11931                throw new SecurityException(
11932                        "Permission Denial: attempt to change component state from pid="
11933                        + Binder.getCallingPid()
11934                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11935            }
11936            if (className == null) {
11937                // We're dealing with an application/package level state change
11938                if (pkgSetting.getEnabled(userId) == newState) {
11939                    // Nothing to do
11940                    return;
11941                }
11942                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11943                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11944                    // Don't care about who enables an app.
11945                    callingPackage = null;
11946                }
11947                pkgSetting.setEnabled(newState, userId, callingPackage);
11948                // pkgSetting.pkg.mSetEnabled = newState;
11949            } else {
11950                // We're dealing with a component level state change
11951                // First, verify that this is a valid class name.
11952                PackageParser.Package pkg = pkgSetting.pkg;
11953                if (pkg == null || !pkg.hasComponentClassName(className)) {
11954                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11955                        throw new IllegalArgumentException("Component class " + className
11956                                + " does not exist in " + packageName);
11957                    } else {
11958                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11959                                + className + " does not exist in " + packageName);
11960                    }
11961                }
11962                switch (newState) {
11963                case COMPONENT_ENABLED_STATE_ENABLED:
11964                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11965                        return;
11966                    }
11967                    break;
11968                case COMPONENT_ENABLED_STATE_DISABLED:
11969                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11970                        return;
11971                    }
11972                    break;
11973                case COMPONENT_ENABLED_STATE_DEFAULT:
11974                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
11975                        return;
11976                    }
11977                    break;
11978                default:
11979                    Slog.e(TAG, "Invalid new component state: " + newState);
11980                    return;
11981                }
11982            }
11983            mSettings.writePackageRestrictionsLPr(userId);
11984            components = mPendingBroadcasts.get(userId, packageName);
11985            final boolean newPackage = components == null;
11986            if (newPackage) {
11987                components = new ArrayList<String>();
11988            }
11989            if (!components.contains(componentName)) {
11990                components.add(componentName);
11991            }
11992            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
11993                sendNow = true;
11994                // Purge entry from pending broadcast list if another one exists already
11995                // since we are sending one right away.
11996                mPendingBroadcasts.remove(userId, packageName);
11997            } else {
11998                if (newPackage) {
11999                    mPendingBroadcasts.put(userId, packageName, components);
12000                }
12001                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12002                    // Schedule a message
12003                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12004                }
12005            }
12006        }
12007
12008        long callingId = Binder.clearCallingIdentity();
12009        try {
12010            if (sendNow) {
12011                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12012                sendPackageChangedBroadcast(packageName,
12013                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12014            }
12015        } finally {
12016            Binder.restoreCallingIdentity(callingId);
12017        }
12018    }
12019
12020    private void sendPackageChangedBroadcast(String packageName,
12021            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12022        if (DEBUG_INSTALL)
12023            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12024                    + componentNames);
12025        Bundle extras = new Bundle(4);
12026        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12027        String nameList[] = new String[componentNames.size()];
12028        componentNames.toArray(nameList);
12029        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12030        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12031        extras.putInt(Intent.EXTRA_UID, packageUid);
12032        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12033                new int[] {UserHandle.getUserId(packageUid)});
12034    }
12035
12036    @Override
12037    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12038        if (!sUserManager.exists(userId)) return;
12039        final int uid = Binder.getCallingUid();
12040        final int permission = mContext.checkCallingOrSelfPermission(
12041                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12042        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12043        enforceCrossUserPermission(uid, userId, true, "stop package");
12044        // writer
12045        synchronized (mPackages) {
12046            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12047                    uid, userId)) {
12048                scheduleWritePackageRestrictionsLocked(userId);
12049            }
12050        }
12051    }
12052
12053    @Override
12054    public String getInstallerPackageName(String packageName) {
12055        // reader
12056        synchronized (mPackages) {
12057            return mSettings.getInstallerPackageNameLPr(packageName);
12058        }
12059    }
12060
12061    @Override
12062    public int getApplicationEnabledSetting(String packageName, int userId) {
12063        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12064        int uid = Binder.getCallingUid();
12065        enforceCrossUserPermission(uid, userId, false, "get enabled");
12066        // reader
12067        synchronized (mPackages) {
12068            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12069        }
12070    }
12071
12072    @Override
12073    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12074        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12075        int uid = Binder.getCallingUid();
12076        enforceCrossUserPermission(uid, userId, false, "get component enabled");
12077        // reader
12078        synchronized (mPackages) {
12079            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12080        }
12081    }
12082
12083    @Override
12084    public void enterSafeMode() {
12085        enforceSystemOrRoot("Only the system can request entering safe mode");
12086
12087        if (!mSystemReady) {
12088            mSafeMode = true;
12089        }
12090    }
12091
12092    @Override
12093    public void systemReady() {
12094        mSystemReady = true;
12095
12096        // Read the compatibilty setting when the system is ready.
12097        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12098                mContext.getContentResolver(),
12099                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12100        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12101        if (DEBUG_SETTINGS) {
12102            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12103        }
12104
12105        synchronized (mPackages) {
12106            // Verify that all of the preferred activity components actually
12107            // exist.  It is possible for applications to be updated and at
12108            // that point remove a previously declared activity component that
12109            // had been set as a preferred activity.  We try to clean this up
12110            // the next time we encounter that preferred activity, but it is
12111            // possible for the user flow to never be able to return to that
12112            // situation so here we do a sanity check to make sure we haven't
12113            // left any junk around.
12114            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12115            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12116                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12117                removed.clear();
12118                for (PreferredActivity pa : pir.filterSet()) {
12119                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12120                        removed.add(pa);
12121                    }
12122                }
12123                if (removed.size() > 0) {
12124                    for (int r=0; r<removed.size(); r++) {
12125                        PreferredActivity pa = removed.get(r);
12126                        Slog.w(TAG, "Removing dangling preferred activity: "
12127                                + pa.mPref.mComponent);
12128                        pir.removeFilter(pa);
12129                    }
12130                    mSettings.writePackageRestrictionsLPr(
12131                            mSettings.mPreferredActivities.keyAt(i));
12132                }
12133            }
12134        }
12135        sUserManager.systemReady();
12136    }
12137
12138    @Override
12139    public boolean isSafeMode() {
12140        return mSafeMode;
12141    }
12142
12143    @Override
12144    public boolean hasSystemUidErrors() {
12145        return mHasSystemUidErrors;
12146    }
12147
12148    static String arrayToString(int[] array) {
12149        StringBuffer buf = new StringBuffer(128);
12150        buf.append('[');
12151        if (array != null) {
12152            for (int i=0; i<array.length; i++) {
12153                if (i > 0) buf.append(", ");
12154                buf.append(array[i]);
12155            }
12156        }
12157        buf.append(']');
12158        return buf.toString();
12159    }
12160
12161    static class DumpState {
12162        public static final int DUMP_LIBS = 1 << 0;
12163        public static final int DUMP_FEATURES = 1 << 1;
12164        public static final int DUMP_RESOLVERS = 1 << 2;
12165        public static final int DUMP_PERMISSIONS = 1 << 3;
12166        public static final int DUMP_PACKAGES = 1 << 4;
12167        public static final int DUMP_SHARED_USERS = 1 << 5;
12168        public static final int DUMP_MESSAGES = 1 << 6;
12169        public static final int DUMP_PROVIDERS = 1 << 7;
12170        public static final int DUMP_VERIFIERS = 1 << 8;
12171        public static final int DUMP_PREFERRED = 1 << 9;
12172        public static final int DUMP_PREFERRED_XML = 1 << 10;
12173        public static final int DUMP_KEYSETS = 1 << 11;
12174        public static final int DUMP_VERSION = 1 << 12;
12175        public static final int DUMP_INSTALLS = 1 << 13;
12176
12177        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12178
12179        private int mTypes;
12180
12181        private int mOptions;
12182
12183        private boolean mTitlePrinted;
12184
12185        private SharedUserSetting mSharedUser;
12186
12187        public boolean isDumping(int type) {
12188            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12189                return true;
12190            }
12191
12192            return (mTypes & type) != 0;
12193        }
12194
12195        public void setDump(int type) {
12196            mTypes |= type;
12197        }
12198
12199        public boolean isOptionEnabled(int option) {
12200            return (mOptions & option) != 0;
12201        }
12202
12203        public void setOptionEnabled(int option) {
12204            mOptions |= option;
12205        }
12206
12207        public boolean onTitlePrinted() {
12208            final boolean printed = mTitlePrinted;
12209            mTitlePrinted = true;
12210            return printed;
12211        }
12212
12213        public boolean getTitlePrinted() {
12214            return mTitlePrinted;
12215        }
12216
12217        public void setTitlePrinted(boolean enabled) {
12218            mTitlePrinted = enabled;
12219        }
12220
12221        public SharedUserSetting getSharedUser() {
12222            return mSharedUser;
12223        }
12224
12225        public void setSharedUser(SharedUserSetting user) {
12226            mSharedUser = user;
12227        }
12228    }
12229
12230    @Override
12231    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12232        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12233                != PackageManager.PERMISSION_GRANTED) {
12234            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12235                    + Binder.getCallingPid()
12236                    + ", uid=" + Binder.getCallingUid()
12237                    + " without permission "
12238                    + android.Manifest.permission.DUMP);
12239            return;
12240        }
12241
12242        DumpState dumpState = new DumpState();
12243        boolean fullPreferred = false;
12244        boolean checkin = false;
12245
12246        String packageName = null;
12247
12248        int opti = 0;
12249        while (opti < args.length) {
12250            String opt = args[opti];
12251            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12252                break;
12253            }
12254            opti++;
12255            if ("-a".equals(opt)) {
12256                // Right now we only know how to print all.
12257            } else if ("-h".equals(opt)) {
12258                pw.println("Package manager dump options:");
12259                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12260                pw.println("    --checkin: dump for a checkin");
12261                pw.println("    -f: print details of intent filters");
12262                pw.println("    -h: print this help");
12263                pw.println("  cmd may be one of:");
12264                pw.println("    l[ibraries]: list known shared libraries");
12265                pw.println("    f[ibraries]: list device features");
12266                pw.println("    k[eysets]: print known keysets");
12267                pw.println("    r[esolvers]: dump intent resolvers");
12268                pw.println("    perm[issions]: dump permissions");
12269                pw.println("    pref[erred]: print preferred package settings");
12270                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12271                pw.println("    prov[iders]: dump content providers");
12272                pw.println("    p[ackages]: dump installed packages");
12273                pw.println("    s[hared-users]: dump shared user IDs");
12274                pw.println("    m[essages]: print collected runtime messages");
12275                pw.println("    v[erifiers]: print package verifier info");
12276                pw.println("    version: print database version info");
12277                pw.println("    write: write current settings now");
12278                pw.println("    <package.name>: info about given package");
12279                pw.println("    installs: details about install sessions");
12280                return;
12281            } else if ("--checkin".equals(opt)) {
12282                checkin = true;
12283            } else if ("-f".equals(opt)) {
12284                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12285            } else {
12286                pw.println("Unknown argument: " + opt + "; use -h for help");
12287            }
12288        }
12289
12290        // Is the caller requesting to dump a particular piece of data?
12291        if (opti < args.length) {
12292            String cmd = args[opti];
12293            opti++;
12294            // Is this a package name?
12295            if ("android".equals(cmd) || cmd.contains(".")) {
12296                packageName = cmd;
12297                // When dumping a single package, we always dump all of its
12298                // filter information since the amount of data will be reasonable.
12299                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12300            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12301                dumpState.setDump(DumpState.DUMP_LIBS);
12302            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12303                dumpState.setDump(DumpState.DUMP_FEATURES);
12304            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12305                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12306            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12307                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12308            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12309                dumpState.setDump(DumpState.DUMP_PREFERRED);
12310            } else if ("preferred-xml".equals(cmd)) {
12311                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12312                if (opti < args.length && "--full".equals(args[opti])) {
12313                    fullPreferred = true;
12314                    opti++;
12315                }
12316            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12317                dumpState.setDump(DumpState.DUMP_PACKAGES);
12318            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12319                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12320            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12321                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12322            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12323                dumpState.setDump(DumpState.DUMP_MESSAGES);
12324            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12325                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12326            } else if ("version".equals(cmd)) {
12327                dumpState.setDump(DumpState.DUMP_VERSION);
12328            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12329                dumpState.setDump(DumpState.DUMP_KEYSETS);
12330            } else if ("write".equals(cmd)) {
12331                synchronized (mPackages) {
12332                    mSettings.writeLPr();
12333                    pw.println("Settings written.");
12334                    return;
12335                }
12336            } else if ("installs".equals(cmd)) {
12337                dumpState.setDump(DumpState.DUMP_INSTALLS);
12338            }
12339        }
12340
12341        if (checkin) {
12342            pw.println("vers,1");
12343        }
12344
12345        // reader
12346        synchronized (mPackages) {
12347            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12348                if (!checkin) {
12349                    if (dumpState.onTitlePrinted())
12350                        pw.println();
12351                    pw.println("Database versions:");
12352                    pw.print("  SDK Version:");
12353                    pw.print(" internal=");
12354                    pw.print(mSettings.mInternalSdkPlatform);
12355                    pw.print(" external=");
12356                    pw.println(mSettings.mExternalSdkPlatform);
12357                    pw.print("  DB Version:");
12358                    pw.print(" internal=");
12359                    pw.print(mSettings.mInternalDatabaseVersion);
12360                    pw.print(" external=");
12361                    pw.println(mSettings.mExternalDatabaseVersion);
12362                }
12363            }
12364
12365            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12366                if (!checkin) {
12367                    if (dumpState.onTitlePrinted())
12368                        pw.println();
12369                    pw.println("Verifiers:");
12370                    pw.print("  Required: ");
12371                    pw.print(mRequiredVerifierPackage);
12372                    pw.print(" (uid=");
12373                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12374                    pw.println(")");
12375                } else if (mRequiredVerifierPackage != null) {
12376                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12377                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12378                }
12379            }
12380
12381            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12382                boolean printedHeader = false;
12383                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12384                while (it.hasNext()) {
12385                    String name = it.next();
12386                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12387                    if (!checkin) {
12388                        if (!printedHeader) {
12389                            if (dumpState.onTitlePrinted())
12390                                pw.println();
12391                            pw.println("Libraries:");
12392                            printedHeader = true;
12393                        }
12394                        pw.print("  ");
12395                    } else {
12396                        pw.print("lib,");
12397                    }
12398                    pw.print(name);
12399                    if (!checkin) {
12400                        pw.print(" -> ");
12401                    }
12402                    if (ent.path != null) {
12403                        if (!checkin) {
12404                            pw.print("(jar) ");
12405                            pw.print(ent.path);
12406                        } else {
12407                            pw.print(",jar,");
12408                            pw.print(ent.path);
12409                        }
12410                    } else {
12411                        if (!checkin) {
12412                            pw.print("(apk) ");
12413                            pw.print(ent.apk);
12414                        } else {
12415                            pw.print(",apk,");
12416                            pw.print(ent.apk);
12417                        }
12418                    }
12419                    pw.println();
12420                }
12421            }
12422
12423            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12424                if (dumpState.onTitlePrinted())
12425                    pw.println();
12426                if (!checkin) {
12427                    pw.println("Features:");
12428                }
12429                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12430                while (it.hasNext()) {
12431                    String name = it.next();
12432                    if (!checkin) {
12433                        pw.print("  ");
12434                    } else {
12435                        pw.print("feat,");
12436                    }
12437                    pw.println(name);
12438                }
12439            }
12440
12441            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12442                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12443                        : "Activity Resolver Table:", "  ", packageName,
12444                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12445                    dumpState.setTitlePrinted(true);
12446                }
12447                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12448                        : "Receiver Resolver Table:", "  ", packageName,
12449                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12450                    dumpState.setTitlePrinted(true);
12451                }
12452                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12453                        : "Service Resolver Table:", "  ", packageName,
12454                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12455                    dumpState.setTitlePrinted(true);
12456                }
12457                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12458                        : "Provider Resolver Table:", "  ", packageName,
12459                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12460                    dumpState.setTitlePrinted(true);
12461                }
12462            }
12463
12464            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12465                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12466                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12467                    int user = mSettings.mPreferredActivities.keyAt(i);
12468                    if (pir.dump(pw,
12469                            dumpState.getTitlePrinted()
12470                                ? "\nPreferred Activities User " + user + ":"
12471                                : "Preferred Activities User " + user + ":", "  ",
12472                            packageName, true)) {
12473                        dumpState.setTitlePrinted(true);
12474                    }
12475                }
12476            }
12477
12478            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12479                pw.flush();
12480                FileOutputStream fout = new FileOutputStream(fd);
12481                BufferedOutputStream str = new BufferedOutputStream(fout);
12482                XmlSerializer serializer = new FastXmlSerializer();
12483                try {
12484                    serializer.setOutput(str, "utf-8");
12485                    serializer.startDocument(null, true);
12486                    serializer.setFeature(
12487                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12488                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12489                    serializer.endDocument();
12490                    serializer.flush();
12491                } catch (IllegalArgumentException e) {
12492                    pw.println("Failed writing: " + e);
12493                } catch (IllegalStateException e) {
12494                    pw.println("Failed writing: " + e);
12495                } catch (IOException e) {
12496                    pw.println("Failed writing: " + e);
12497                }
12498            }
12499
12500            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12501                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12502                if (packageName == null) {
12503                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12504                        if (iperm == 0) {
12505                            if (dumpState.onTitlePrinted())
12506                                pw.println();
12507                            pw.println("AppOp Permissions:");
12508                        }
12509                        pw.print("  AppOp Permission ");
12510                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12511                        pw.println(":");
12512                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12513                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12514                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12515                        }
12516                    }
12517                }
12518            }
12519
12520            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12521                boolean printedSomething = false;
12522                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12523                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12524                        continue;
12525                    }
12526                    if (!printedSomething) {
12527                        if (dumpState.onTitlePrinted())
12528                            pw.println();
12529                        pw.println("Registered ContentProviders:");
12530                        printedSomething = true;
12531                    }
12532                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12533                    pw.print("    "); pw.println(p.toString());
12534                }
12535                printedSomething = false;
12536                for (Map.Entry<String, PackageParser.Provider> entry :
12537                        mProvidersByAuthority.entrySet()) {
12538                    PackageParser.Provider p = entry.getValue();
12539                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12540                        continue;
12541                    }
12542                    if (!printedSomething) {
12543                        if (dumpState.onTitlePrinted())
12544                            pw.println();
12545                        pw.println("ContentProvider Authorities:");
12546                        printedSomething = true;
12547                    }
12548                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12549                    pw.print("    "); pw.println(p.toString());
12550                    if (p.info != null && p.info.applicationInfo != null) {
12551                        final String appInfo = p.info.applicationInfo.toString();
12552                        pw.print("      applicationInfo="); pw.println(appInfo);
12553                    }
12554                }
12555            }
12556
12557            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12558                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12559            }
12560
12561            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12562                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12563            }
12564
12565            if (!checkin && dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12566                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState);
12567            }
12568
12569            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS)) {
12570                if (dumpState.onTitlePrinted()) pw.println();
12571                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12572            }
12573
12574            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12575                if (dumpState.onTitlePrinted()) pw.println();
12576                mSettings.dumpReadMessagesLPr(pw, dumpState);
12577
12578                pw.println();
12579                pw.println("Package warning messages:");
12580                final File fname = getSettingsProblemFile();
12581                FileInputStream in = null;
12582                try {
12583                    in = new FileInputStream(fname);
12584                    final int avail = in.available();
12585                    final byte[] data = new byte[avail];
12586                    in.read(data);
12587                    pw.print(new String(data));
12588                } catch (FileNotFoundException e) {
12589                } catch (IOException e) {
12590                } finally {
12591                    if (in != null) {
12592                        try {
12593                            in.close();
12594                        } catch (IOException e) {
12595                        }
12596                    }
12597                }
12598            }
12599        }
12600    }
12601
12602    // ------- apps on sdcard specific code -------
12603    static final boolean DEBUG_SD_INSTALL = false;
12604
12605    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12606
12607    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12608
12609    private boolean mMediaMounted = false;
12610
12611    private String getEncryptKey() {
12612        try {
12613            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12614                    SD_ENCRYPTION_KEYSTORE_NAME);
12615            if (sdEncKey == null) {
12616                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12617                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12618                if (sdEncKey == null) {
12619                    Slog.e(TAG, "Failed to create encryption keys");
12620                    return null;
12621                }
12622            }
12623            return sdEncKey;
12624        } catch (NoSuchAlgorithmException nsae) {
12625            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12626            return null;
12627        } catch (IOException ioe) {
12628            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12629            return null;
12630        }
12631
12632    }
12633
12634    /* package */static String getTempContainerId() {
12635        int tmpIdx = 1;
12636        String list[] = PackageHelper.getSecureContainerList();
12637        if (list != null) {
12638            for (final String name : list) {
12639                // Ignore null and non-temporary container entries
12640                if (name == null || !name.startsWith(mTempContainerPrefix)) {
12641                    continue;
12642                }
12643
12644                String subStr = name.substring(mTempContainerPrefix.length());
12645                try {
12646                    int cid = Integer.parseInt(subStr);
12647                    if (cid >= tmpIdx) {
12648                        tmpIdx = cid + 1;
12649                    }
12650                } catch (NumberFormatException e) {
12651                }
12652            }
12653        }
12654        return mTempContainerPrefix + tmpIdx;
12655    }
12656
12657    /*
12658     * Update media status on PackageManager.
12659     */
12660    @Override
12661    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12662        int callingUid = Binder.getCallingUid();
12663        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12664            throw new SecurityException("Media status can only be updated by the system");
12665        }
12666        // reader; this apparently protects mMediaMounted, but should probably
12667        // be a different lock in that case.
12668        synchronized (mPackages) {
12669            Log.i(TAG, "Updating external media status from "
12670                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12671                    + (mediaStatus ? "mounted" : "unmounted"));
12672            if (DEBUG_SD_INSTALL)
12673                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12674                        + ", mMediaMounted=" + mMediaMounted);
12675            if (mediaStatus == mMediaMounted) {
12676                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12677                        : 0, -1);
12678                mHandler.sendMessage(msg);
12679                return;
12680            }
12681            mMediaMounted = mediaStatus;
12682        }
12683        // Queue up an async operation since the package installation may take a
12684        // little while.
12685        mHandler.post(new Runnable() {
12686            public void run() {
12687                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12688            }
12689        });
12690    }
12691
12692    /**
12693     * Called by MountService when the initial ASECs to scan are available.
12694     * Should block until all the ASEC containers are finished being scanned.
12695     */
12696    public void scanAvailableAsecs() {
12697        updateExternalMediaStatusInner(true, false, false);
12698        if (mShouldRestoreconData) {
12699            SELinuxMMAC.setRestoreconDone();
12700            mShouldRestoreconData = false;
12701        }
12702    }
12703
12704    /*
12705     * Collect information of applications on external media, map them against
12706     * existing containers and update information based on current mount status.
12707     * Please note that we always have to report status if reportStatus has been
12708     * set to true especially when unloading packages.
12709     */
12710    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12711            boolean externalStorage) {
12712        // Collection of uids
12713        int uidArr[] = null;
12714        // Collection of stale containers
12715        HashSet<String> removeCids = new HashSet<String>();
12716        // Collection of packages on external media with valid containers.
12717        HashMap<AsecInstallArgs, String> processCids = new HashMap<AsecInstallArgs, String>();
12718        // Get list of secure containers.
12719        final String list[] = PackageHelper.getSecureContainerList();
12720        if (list == null || list.length == 0) {
12721            Log.i(TAG, "No secure containers on sdcard");
12722        } else {
12723            // Process list of secure containers and categorize them
12724            // as active or stale based on their package internal state.
12725            int uidList[] = new int[list.length];
12726            int num = 0;
12727            // reader
12728            synchronized (mPackages) {
12729                for (String cid : list) {
12730                    if (DEBUG_SD_INSTALL)
12731                        Log.i(TAG, "Processing container " + cid);
12732                    String pkgName = getAsecPackageName(cid);
12733                    if (pkgName == null) {
12734                        if (DEBUG_SD_INSTALL)
12735                            Log.i(TAG, "Container : " + cid + " stale");
12736                        removeCids.add(cid);
12737                        continue;
12738                    }
12739                    if (DEBUG_SD_INSTALL)
12740                        Log.i(TAG, "Looking for pkg : " + pkgName);
12741
12742                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12743                    if (ps == null) {
12744                        Log.i(TAG, "Deleting container with no matching settings " + cid);
12745                        removeCids.add(cid);
12746                        continue;
12747                    }
12748
12749                    /*
12750                     * Skip packages that are not external if we're unmounting
12751                     * external storage.
12752                     */
12753                    if (externalStorage && !isMounted && !isExternal(ps)) {
12754                        continue;
12755                    }
12756
12757                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12758                            getAppDexInstructionSets(ps), isForwardLocked(ps), isMultiArch(ps));
12759                    // The package status is changed only if the code path
12760                    // matches between settings and the container id.
12761                    if (ps.codePathString != null && ps.codePathString.equals(args.getCodePath())) {
12762                        if (DEBUG_SD_INSTALL) {
12763                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12764                                    + " at code path: " + ps.codePathString);
12765                        }
12766
12767                        // We do have a valid package installed on sdcard
12768                        processCids.put(args, ps.codePathString);
12769                        final int uid = ps.appId;
12770                        if (uid != -1) {
12771                            uidList[num++] = uid;
12772                        }
12773                    } else {
12774                        Log.i(TAG, "Deleting stale container for " + cid);
12775                        removeCids.add(cid);
12776                    }
12777                }
12778            }
12779
12780            if (num > 0) {
12781                // Sort uid list
12782                Arrays.sort(uidList, 0, num);
12783                // Throw away duplicates
12784                uidArr = new int[num];
12785                uidArr[0] = uidList[0];
12786                int di = 0;
12787                for (int i = 1; i < num; i++) {
12788                    if (uidList[i - 1] != uidList[i]) {
12789                        uidArr[di++] = uidList[i];
12790                    }
12791                }
12792            }
12793        }
12794        // Process packages with valid entries.
12795        if (isMounted) {
12796            if (DEBUG_SD_INSTALL)
12797                Log.i(TAG, "Loading packages");
12798            loadMediaPackages(processCids, uidArr, removeCids);
12799            startCleaningPackages();
12800        } else {
12801            if (DEBUG_SD_INSTALL)
12802                Log.i(TAG, "Unloading packages");
12803            unloadMediaPackages(processCids, uidArr, reportStatus);
12804        }
12805    }
12806
12807   private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12808           ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12809        int size = pkgList.size();
12810        if (size > 0) {
12811            // Send broadcasts here
12812            Bundle extras = new Bundle();
12813            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12814                    .toArray(new String[size]));
12815            if (uidArr != null) {
12816                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12817            }
12818            if (replacing) {
12819                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12820            }
12821            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12822                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12823            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12824        }
12825    }
12826
12827   /*
12828     * Look at potentially valid container ids from processCids If package
12829     * information doesn't match the one on record or package scanning fails,
12830     * the cid is added to list of removeCids. We currently don't delete stale
12831     * containers.
12832     */
12833   private void loadMediaPackages(HashMap<AsecInstallArgs, String> processCids, int uidArr[],
12834            HashSet<String> removeCids) {
12835        ArrayList<String> pkgList = new ArrayList<String>();
12836        Set<AsecInstallArgs> keys = processCids.keySet();
12837        boolean doGc = false;
12838        for (AsecInstallArgs args : keys) {
12839            String codePath = processCids.get(args);
12840            if (DEBUG_SD_INSTALL)
12841                Log.i(TAG, "Loading container : " + args.cid);
12842            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12843            try {
12844                // Make sure there are no container errors first.
12845                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12846                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12847                            + " when installing from sdcard");
12848                    continue;
12849                }
12850                // Check code path here.
12851                if (codePath == null || !codePath.equals(args.getCodePath())) {
12852                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12853                            + " does not match one in settings " + codePath);
12854                    continue;
12855                }
12856                // Parse package
12857                int parseFlags = mDefParseFlags;
12858                if (args.isExternal()) {
12859                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12860                }
12861                if (args.isFwdLocked()) {
12862                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12863                }
12864
12865                doGc = true;
12866                synchronized (mInstallLock) {
12867                    PackageParser.Package pkg = null;
12868                    try {
12869                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12870                    } catch (PackageManagerException e) {
12871                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12872                    }
12873                    // Scan the package
12874                    if (pkg != null) {
12875                        /*
12876                         * TODO why is the lock being held? doPostInstall is
12877                         * called in other places without the lock. This needs
12878                         * to be straightened out.
12879                         */
12880                        // writer
12881                        synchronized (mPackages) {
12882                            retCode = PackageManager.INSTALL_SUCCEEDED;
12883                            pkgList.add(pkg.packageName);
12884                            // Post process args
12885                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12886                                    pkg.applicationInfo.uid);
12887                        }
12888                    } else {
12889                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12890                    }
12891                }
12892
12893            } finally {
12894                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12895                    // Don't destroy container here. Wait till gc clears things
12896                    // up.
12897                    removeCids.add(args.cid);
12898                }
12899            }
12900        }
12901        // writer
12902        synchronized (mPackages) {
12903            // If the platform SDK has changed since the last time we booted,
12904            // we need to re-grant app permission to catch any new ones that
12905            // appear. This is really a hack, and means that apps can in some
12906            // cases get permissions that the user didn't initially explicitly
12907            // allow... it would be nice to have some better way to handle
12908            // this situation.
12909            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12910            if (regrantPermissions)
12911                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12912                        + mSdkVersion + "; regranting permissions for external storage");
12913            mSettings.mExternalSdkPlatform = mSdkVersion;
12914
12915            // Make sure group IDs have been assigned, and any permission
12916            // changes in other apps are accounted for
12917            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12918                    | (regrantPermissions
12919                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12920                            : 0));
12921
12922            mSettings.updateExternalDatabaseVersion();
12923
12924            // can downgrade to reader
12925            // Persist settings
12926            mSettings.writeLPr();
12927        }
12928        // Send a broadcast to let everyone know we are done processing
12929        if (pkgList.size() > 0) {
12930            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12931        }
12932        // Force gc to avoid any stale parser references that we might have.
12933        if (doGc) {
12934            Runtime.getRuntime().gc();
12935        }
12936        // List stale containers and destroy stale temporary containers.
12937        if (removeCids != null) {
12938            for (String cid : removeCids) {
12939                if (cid.startsWith(mTempContainerPrefix)) {
12940                    Log.i(TAG, "Destroying stale temporary container " + cid);
12941                    PackageHelper.destroySdDir(cid);
12942                } else {
12943                    Log.w(TAG, "Container " + cid + " is stale");
12944               }
12945           }
12946        }
12947    }
12948
12949   /*
12950     * Utility method to unload a list of specified containers
12951     */
12952    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12953        // Just unmount all valid containers.
12954        for (AsecInstallArgs arg : cidArgs) {
12955            synchronized (mInstallLock) {
12956                arg.doPostDeleteLI(false);
12957           }
12958       }
12959   }
12960
12961    /*
12962     * Unload packages mounted on external media. This involves deleting package
12963     * data from internal structures, sending broadcasts about diabled packages,
12964     * gc'ing to free up references, unmounting all secure containers
12965     * corresponding to packages on external media, and posting a
12966     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12967     * that we always have to post this message if status has been requested no
12968     * matter what.
12969     */
12970    private void unloadMediaPackages(HashMap<AsecInstallArgs, String> processCids, int uidArr[],
12971            final boolean reportStatus) {
12972        if (DEBUG_SD_INSTALL)
12973            Log.i(TAG, "unloading media packages");
12974        ArrayList<String> pkgList = new ArrayList<String>();
12975        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12976        final Set<AsecInstallArgs> keys = processCids.keySet();
12977        for (AsecInstallArgs args : keys) {
12978            String pkgName = args.getPackageName();
12979            if (DEBUG_SD_INSTALL)
12980                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12981            // Delete package internally
12982            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12983            synchronized (mInstallLock) {
12984                boolean res = deletePackageLI(pkgName, null, false, null, null,
12985                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12986                if (res) {
12987                    pkgList.add(pkgName);
12988                } else {
12989                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12990                    failedList.add(args);
12991                }
12992            }
12993        }
12994
12995        // reader
12996        synchronized (mPackages) {
12997            // We didn't update the settings after removing each package;
12998            // write them now for all packages.
12999            mSettings.writeLPr();
13000        }
13001
13002        // We have to absolutely send UPDATED_MEDIA_STATUS only
13003        // after confirming that all the receivers processed the ordered
13004        // broadcast when packages get disabled, force a gc to clean things up.
13005        // and unload all the containers.
13006        if (pkgList.size() > 0) {
13007            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13008                    new IIntentReceiver.Stub() {
13009                public void performReceive(Intent intent, int resultCode, String data,
13010                        Bundle extras, boolean ordered, boolean sticky,
13011                        int sendingUser) throws RemoteException {
13012                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13013                            reportStatus ? 1 : 0, 1, keys);
13014                    mHandler.sendMessage(msg);
13015                }
13016            });
13017        } else {
13018            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13019                    keys);
13020            mHandler.sendMessage(msg);
13021        }
13022    }
13023
13024    /** Binder call */
13025    @Override
13026    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13027            final int flags) {
13028        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13029        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13030        int returnCode = PackageManager.MOVE_SUCCEEDED;
13031        int currFlags = 0;
13032        int newFlags = 0;
13033        // reader
13034        synchronized (mPackages) {
13035            PackageParser.Package pkg = mPackages.get(packageName);
13036            if (pkg == null) {
13037                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13038            } else {
13039                // Disable moving fwd locked apps and system packages
13040                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13041                    Slog.w(TAG, "Cannot move system application");
13042                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13043                } else if (pkg.mOperationPending) {
13044                    Slog.w(TAG, "Attempt to move package which has pending operations");
13045                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13046                } else {
13047                    // Find install location first
13048                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13049                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13050                        Slog.w(TAG, "Ambigous flags specified for move location.");
13051                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13052                    } else {
13053                        newFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0 ? PackageManager.INSTALL_EXTERNAL
13054                                : PackageManager.INSTALL_INTERNAL;
13055                        currFlags = isExternal(pkg) ? PackageManager.INSTALL_EXTERNAL
13056                                : PackageManager.INSTALL_INTERNAL;
13057
13058                        if (newFlags == currFlags) {
13059                            Slog.w(TAG, "No move required. Trying to move to same location");
13060                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13061                        } else {
13062                            if (isForwardLocked(pkg)) {
13063                                currFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13064                                newFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13065                            }
13066                        }
13067                    }
13068                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13069                        pkg.mOperationPending = true;
13070                    }
13071                }
13072            }
13073
13074            /*
13075             * TODO this next block probably shouldn't be inside the lock. We
13076             * can't guarantee these won't change after this is fired off
13077             * anyway.
13078             */
13079            if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13080                processPendingMove(new MoveParams(null, observer, 0, packageName, null, -1, user, false),
13081                        returnCode);
13082            } else {
13083                Message msg = mHandler.obtainMessage(INIT_COPY);
13084                final String[] instructionSets = getAppDexInstructionSets(pkg.applicationInfo);
13085                final boolean multiArch = isMultiArch(pkg.applicationInfo);
13086                InstallArgs srcArgs = createInstallArgsForExisting(currFlags,
13087                        pkg.applicationInfo.getCodePath(), pkg.applicationInfo.getResourcePath(),
13088                        pkg.applicationInfo.nativeLibraryRootDir, instructionSets, multiArch);
13089                MoveParams mp = new MoveParams(srcArgs, observer, newFlags, packageName,
13090                        instructionSets, pkg.applicationInfo.uid, user, multiArch);
13091                msg.obj = mp;
13092                mHandler.sendMessage(msg);
13093            }
13094        }
13095    }
13096
13097    private void processPendingMove(final MoveParams mp, final int currentStatus) {
13098        // Queue up an async operation since the package deletion may take a
13099        // little while.
13100        mHandler.post(new Runnable() {
13101            public void run() {
13102                // TODO fix this; this does nothing.
13103                mHandler.removeCallbacks(this);
13104                int returnCode = currentStatus;
13105                if (currentStatus == PackageManager.MOVE_SUCCEEDED) {
13106                    int uidArr[] = null;
13107                    ArrayList<String> pkgList = null;
13108                    synchronized (mPackages) {
13109                        PackageParser.Package pkg = mPackages.get(mp.packageName);
13110                        if (pkg == null) {
13111                            Slog.w(TAG, " Package " + mp.packageName
13112                                    + " doesn't exist. Aborting move");
13113                            returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13114                        } else if (!mp.srcArgs.getCodePath().equals(
13115                                pkg.applicationInfo.getCodePath())) {
13116                            Slog.w(TAG, "Package " + mp.packageName + " code path changed from "
13117                                    + mp.srcArgs.getCodePath() + " to "
13118                                    + pkg.applicationInfo.getCodePath()
13119                                    + " Aborting move and returning error");
13120                            returnCode = PackageManager.MOVE_FAILED_INTERNAL_ERROR;
13121                        } else {
13122                            uidArr = new int[] {
13123                                pkg.applicationInfo.uid
13124                            };
13125                            pkgList = new ArrayList<String>();
13126                            pkgList.add(mp.packageName);
13127                        }
13128                    }
13129                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13130                        // Send resources unavailable broadcast
13131                        sendResourcesChangedBroadcast(false, true, pkgList, uidArr, null);
13132                        // Update package code and resource paths
13133                        synchronized (mInstallLock) {
13134                            synchronized (mPackages) {
13135                                PackageParser.Package pkg = mPackages.get(mp.packageName);
13136                                // Recheck for package again.
13137                                if (pkg == null) {
13138                                    Slog.w(TAG, " Package " + mp.packageName
13139                                            + " doesn't exist. Aborting move");
13140                                    returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13141                                } else if (!mp.srcArgs.getCodePath().equals(
13142                                        pkg.applicationInfo.getCodePath())) {
13143                                    Slog.w(TAG, "Package " + mp.packageName
13144                                            + " code path changed from " + mp.srcArgs.getCodePath()
13145                                            + " to " + pkg.applicationInfo.getCodePath()
13146                                            + " Aborting move and returning error");
13147                                    returnCode = PackageManager.MOVE_FAILED_INTERNAL_ERROR;
13148                                } else {
13149                                    final String oldCodePath = pkg.codePath;
13150                                    final String newCodePath = mp.targetArgs.getCodePath();
13151                                    final String newResPath = mp.targetArgs.getResourcePath();
13152                                    // TODO: This assumes the new style of installation.
13153                                    // should we look at legacyNativeLibraryPath ?
13154                                    final String newNativeRoot = new File(pkg.codePath, LIB_DIR_NAME).getAbsolutePath();
13155                                    final File newNativeDir = new File(newNativeRoot);
13156
13157                                    if (!isForwardLocked(pkg) && !isExternal(pkg)) {
13158                                        // TODO(multiArch): Fix this so that it looks at the existing
13159                                        // recorded CPU abis from the package. There's no need for a separate
13160                                        // round of ABI scanning here.
13161                                        NativeLibraryHelper.Handle handle = null;
13162                                        try {
13163                                            handle = NativeLibraryHelper.Handle.create(
13164                                                    new File(newCodePath));
13165                                            final int abi = NativeLibraryHelper.findSupportedAbi(
13166                                                    handle, Build.SUPPORTED_ABIS);
13167                                            if (abi >= 0) {
13168                                                NativeLibraryHelper.copyNativeBinariesIfNeededLI(
13169                                                        handle, newNativeDir, Build.SUPPORTED_ABIS[abi]);
13170                                            }
13171                                        } catch (IOException ioe) {
13172                                            Slog.w(TAG, "Unable to extract native libs for package :"
13173                                                    + mp.packageName, ioe);
13174                                            returnCode = PackageManager.MOVE_FAILED_INTERNAL_ERROR;
13175                                        } finally {
13176                                            IoUtils.closeQuietly(handle);
13177                                        }
13178                                    }
13179
13180                                    final int[] users = sUserManager.getUserIds();
13181                                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13182                                        for (int user : users) {
13183                                            // TODO(multiArch): Fix this so that it links to the
13184                                            // correct directory. We're currently pointing to root. but we
13185                                            // must point to the arch specific subdirectory (if applicable).
13186                                            //
13187                                            // TODO(multiArch): Bogus reference to nativeLibraryDir.
13188                                            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName,
13189                                                    newNativeRoot, user) < 0) {
13190                                                returnCode = PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE;
13191                                            }
13192                                        }
13193                                    }
13194
13195                                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13196                                        pkg.codePath = newCodePath;
13197                                        pkg.baseCodePath = newCodePath;
13198                                        // Move dex files around
13199                                        if (moveDexFilesLI(oldCodePath, pkg) != PackageManager.INSTALL_SUCCEEDED) {
13200                                            // Moving of dex files failed. Set
13201                                            // error code and abort move.
13202                                            pkg.codePath = oldCodePath;
13203                                            pkg.baseCodePath = oldCodePath;
13204                                            returnCode = PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE;
13205                                        }
13206                                    }
13207
13208                                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13209                                        pkg.applicationInfo.setCodePath(newCodePath);
13210                                        pkg.applicationInfo.setBaseCodePath(newCodePath);
13211                                        pkg.applicationInfo.setSplitCodePaths(null);
13212                                        pkg.applicationInfo.setResourcePath(newResPath);
13213                                        pkg.applicationInfo.setBaseResourcePath(newResPath);
13214                                        pkg.applicationInfo.setSplitResourcePaths(null);
13215
13216                                        PackageSetting ps = (PackageSetting) pkg.mExtras;
13217                                        ps.codePath = new File(pkg.applicationInfo.getCodePath());
13218                                        ps.codePathString = ps.codePath.getPath();
13219                                        ps.resourcePath = new File(pkg.applicationInfo.getResourcePath());
13220                                        ps.resourcePathString = ps.resourcePath.getPath();
13221
13222                                        // Note that we don't have to recalculate the primary and secondary
13223                                        // CPU ABIs because they must already have been calculated during the
13224                                        // initial install of the app.
13225                                        ps.legacyNativeLibraryPathString = null;
13226
13227                                        // Set the application info flag
13228                                        // correctly.
13229                                        if ((mp.flags & PackageManager.INSTALL_EXTERNAL) != 0) {
13230                                            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_EXTERNAL_STORAGE;
13231                                        } else {
13232                                            pkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_EXTERNAL_STORAGE;
13233                                        }
13234                                        ps.setFlags(pkg.applicationInfo.flags);
13235                                        mAppDirs.remove(oldCodePath);
13236                                        mAppDirs.put(newCodePath, pkg);
13237                                        // Persist settings
13238                                        mSettings.writeLPr();
13239                                    }
13240                                }
13241                            }
13242                        }
13243                        // Send resources available broadcast
13244                        sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
13245                    }
13246                }
13247                if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13248                    // Clean up failed installation
13249                    if (mp.targetArgs != null) {
13250                        mp.targetArgs.doPostInstall(PackageManager.INSTALL_FAILED_INTERNAL_ERROR,
13251                                -1);
13252                    }
13253                } else {
13254                    // Force a gc to clear things up.
13255                    Runtime.getRuntime().gc();
13256                    // Delete older code
13257                    synchronized (mInstallLock) {
13258                        mp.srcArgs.doPostDeleteLI(true);
13259                    }
13260                }
13261
13262                // Allow more operations on this file if we didn't fail because
13263                // an operation was already pending for this package.
13264                if (returnCode != PackageManager.MOVE_FAILED_OPERATION_PENDING) {
13265                    synchronized (mPackages) {
13266                        PackageParser.Package pkg = mPackages.get(mp.packageName);
13267                        if (pkg != null) {
13268                            pkg.mOperationPending = false;
13269                       }
13270                   }
13271                }
13272
13273                IPackageMoveObserver observer = mp.observer;
13274                if (observer != null) {
13275                    try {
13276                        observer.packageMoved(mp.packageName, returnCode);
13277                    } catch (RemoteException e) {
13278                        Log.i(TAG, "Observer no longer exists.");
13279                    }
13280                }
13281            }
13282        });
13283    }
13284
13285    @Override
13286    public boolean setInstallLocation(int loc) {
13287        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13288                null);
13289        if (getInstallLocation() == loc) {
13290            return true;
13291        }
13292        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13293                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13294            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13295                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13296            return true;
13297        }
13298        return false;
13299   }
13300
13301    @Override
13302    public int getInstallLocation() {
13303        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13304                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13305                PackageHelper.APP_INSTALL_AUTO);
13306    }
13307
13308    /** Called by UserManagerService */
13309    void cleanUpUserLILPw(int userHandle) {
13310        mDirtyUsers.remove(userHandle);
13311        mSettings.removeUserLPw(userHandle);
13312        mPendingBroadcasts.remove(userHandle);
13313        if (mInstaller != null) {
13314            // Technically, we shouldn't be doing this with the package lock
13315            // held.  However, this is very rare, and there is already so much
13316            // other disk I/O going on, that we'll let it slide for now.
13317            mInstaller.removeUserDataDirs(userHandle);
13318        }
13319        mUserNeedsBadging.delete(userHandle);
13320    }
13321
13322    /** Called by UserManagerService */
13323    void createNewUserLILPw(int userHandle, File path) {
13324        if (mInstaller != null) {
13325            mInstaller.createUserConfig(userHandle);
13326            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13327        }
13328    }
13329
13330    @Override
13331    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13332        mContext.enforceCallingOrSelfPermission(
13333                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13334                "Only package verification agents can read the verifier device identity");
13335
13336        synchronized (mPackages) {
13337            return mSettings.getVerifierDeviceIdentityLPw();
13338        }
13339    }
13340
13341    @Override
13342    public void setPermissionEnforced(String permission, boolean enforced) {
13343        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13344        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13345            synchronized (mPackages) {
13346                if (mSettings.mReadExternalStorageEnforced == null
13347                        || mSettings.mReadExternalStorageEnforced != enforced) {
13348                    mSettings.mReadExternalStorageEnforced = enforced;
13349                    mSettings.writeLPr();
13350                }
13351            }
13352            // kill any non-foreground processes so we restart them and
13353            // grant/revoke the GID.
13354            final IActivityManager am = ActivityManagerNative.getDefault();
13355            if (am != null) {
13356                final long token = Binder.clearCallingIdentity();
13357                try {
13358                    am.killProcessesBelowForeground("setPermissionEnforcement");
13359                } catch (RemoteException e) {
13360                } finally {
13361                    Binder.restoreCallingIdentity(token);
13362                }
13363            }
13364        } else {
13365            throw new IllegalArgumentException("No selective enforcement for " + permission);
13366        }
13367    }
13368
13369    @Override
13370    @Deprecated
13371    public boolean isPermissionEnforced(String permission) {
13372        return true;
13373    }
13374
13375    @Override
13376    public boolean isStorageLow() {
13377        final long token = Binder.clearCallingIdentity();
13378        try {
13379            final DeviceStorageMonitorInternal
13380                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13381            if (dsm != null) {
13382                return dsm.isMemoryLow();
13383            } else {
13384                return false;
13385            }
13386        } finally {
13387            Binder.restoreCallingIdentity(token);
13388        }
13389    }
13390
13391    @Override
13392    public IPackageInstaller getPackageInstaller() {
13393        return mInstallerService;
13394    }
13395
13396    private boolean userNeedsBadging(int userId) {
13397        int index = mUserNeedsBadging.indexOfKey(userId);
13398        if (index < 0) {
13399            final UserInfo userInfo;
13400            final long token = Binder.clearCallingIdentity();
13401            try {
13402                userInfo = sUserManager.getUserInfo(userId);
13403            } finally {
13404                Binder.restoreCallingIdentity(token);
13405            }
13406            final boolean b;
13407            if (userInfo != null && userInfo.isManagedProfile()) {
13408                b = true;
13409            } else {
13410                b = false;
13411            }
13412            mUserNeedsBadging.put(userId, b);
13413            return b;
13414        }
13415        return mUserNeedsBadging.valueAt(index);
13416    }
13417
13418    @Override
13419    public KeySetHandle getKeySetByAlias(String packageName, String alias) {
13420        if (packageName == null || alias == null) {
13421            return null;
13422        }
13423        synchronized(mPackages) {
13424            final PackageParser.Package pkg = mPackages.get(packageName);
13425            if (pkg == null) {
13426                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13427                throw new IllegalArgumentException("Unknown package: " + packageName);
13428            }
13429            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13430                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13431                throw new SecurityException("May not access KeySets defined by"
13432                        + " aliases in other applications.");
13433            }
13434            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13435            return ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias);
13436        }
13437    }
13438
13439    @Override
13440    public KeySetHandle getSigningKeySet(String packageName) {
13441        if (packageName == null) {
13442            return null;
13443        }
13444        synchronized(mPackages) {
13445            final PackageParser.Package pkg = mPackages.get(packageName);
13446            if (pkg == null) {
13447                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13448                throw new IllegalArgumentException("Unknown package: " + packageName);
13449            }
13450            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13451                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13452                throw new SecurityException("May not access signing KeySet of other apps.");
13453            }
13454            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13455            return ksms.getSigningKeySetByPackageNameLPr(packageName);
13456        }
13457    }
13458
13459    @Override
13460    public boolean isPackageSignedByKeySet(String packageName, IBinder ks) {
13461        if (packageName == null || ks == null) {
13462            return false;
13463        }
13464        synchronized(mPackages) {
13465            final PackageParser.Package pkg = mPackages.get(packageName);
13466            if (pkg == null) {
13467                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13468                throw new IllegalArgumentException("Unknown package: " + packageName);
13469            }
13470            if (ks instanceof KeySetHandle) {
13471                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13472                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ks);
13473            }
13474            return false;
13475        }
13476    }
13477
13478    @Override
13479    public boolean isPackageSignedByKeySetExactly(String packageName, IBinder ks) {
13480        if (packageName == null || ks == null) {
13481            return false;
13482        }
13483        synchronized(mPackages) {
13484            final PackageParser.Package pkg = mPackages.get(packageName);
13485            if (pkg == null) {
13486                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13487                throw new IllegalArgumentException("Unknown package: " + packageName);
13488            }
13489            if (ks instanceof KeySetHandle) {
13490                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13491                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ks);
13492            }
13493            return false;
13494        }
13495    }
13496}
13497