PackageManagerService.java revision 9837c51acc274531a4109b9973a7d7927787da6c 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.pm;
18
19import static android.Manifest.permission.GRANT_REVOKE_PERMISSIONS;
20import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
21import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
22import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
23import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED;
24import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER;
25import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
26import static android.content.pm.PackageManager.INSTALL_EXTERNAL;
27import static android.content.pm.PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
28import static android.content.pm.PackageManager.INSTALL_FAILED_CONFLICTING_PROVIDER;
29import static android.content.pm.PackageManager.INSTALL_FAILED_DEXOPT;
30import static android.content.pm.PackageManager.INSTALL_FAILED_DUPLICATE_PACKAGE;
31import static android.content.pm.PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION;
32import static android.content.pm.PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
33import static android.content.pm.PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
34import static android.content.pm.PackageManager.INSTALL_FAILED_INVALID_APK;
35import static android.content.pm.PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
36import static android.content.pm.PackageManager.INSTALL_FAILED_MISSING_SHARED_LIBRARY;
37import static android.content.pm.PackageManager.INSTALL_FAILED_PACKAGE_CHANGED;
38import static android.content.pm.PackageManager.INSTALL_FAILED_REPLACE_COULDNT_DELETE;
39import static android.content.pm.PackageManager.INSTALL_FAILED_SHARED_USER_INCOMPATIBLE;
40import static android.content.pm.PackageManager.INSTALL_FAILED_TEST_ONLY;
41import static android.content.pm.PackageManager.INSTALL_FAILED_UID_CHANGED;
42import static android.content.pm.PackageManager.INSTALL_FAILED_UPDATE_INCOMPATIBLE;
43import static android.content.pm.PackageManager.INSTALL_FAILED_USER_RESTRICTED;
44import static android.content.pm.PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
45import static android.content.pm.PackageManager.INSTALL_FORWARD_LOCK;
46import static android.content.pm.PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
47import static android.content.pm.PackageParser.isApkFile;
48import static android.os.Process.PACKAGE_INFO_GID;
49import static android.os.Process.SYSTEM_UID;
50import static android.system.OsConstants.O_CREAT;
51import static android.system.OsConstants.O_RDWR;
52import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_MANAGED_PROFILE;
53import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_USER_OWNER;
54import static com.android.internal.content.NativeLibraryHelper.LIB64_DIR_NAME;
55import static com.android.internal.content.NativeLibraryHelper.LIB_DIR_NAME;
56import static com.android.internal.util.ArrayUtils.appendInt;
57import static com.android.internal.util.ArrayUtils.removeInt;
58import static com.android.server.pm.InstructionSets.getAppDexInstructionSets;
59import static com.android.server.pm.InstructionSets.getDexCodeInstructionSet;
60import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets;
61import static com.android.server.pm.InstructionSets.getPreferredInstructionSet;
62
63import android.util.ArrayMap;
64
65import com.android.internal.R;
66import com.android.internal.app.IMediaContainerService;
67import com.android.internal.app.ResolverActivity;
68import com.android.internal.content.NativeLibraryHelper;
69import com.android.internal.content.PackageHelper;
70import com.android.internal.os.IParcelFileDescriptorFactory;
71import com.android.internal.util.ArrayUtils;
72import com.android.internal.util.FastPrintWriter;
73import com.android.internal.util.FastXmlSerializer;
74import com.android.internal.util.IndentingPrintWriter;
75import com.android.server.EventLogTags;
76import com.android.server.IntentResolver;
77import com.android.server.LocalServices;
78import com.android.server.ServiceThread;
79import com.android.server.SystemConfig;
80import com.android.server.Watchdog;
81import com.android.server.pm.Settings.DatabaseVersion;
82import com.android.server.storage.DeviceStorageMonitorInternal;
83
84import org.xmlpull.v1.XmlSerializer;
85
86import android.app.ActivityManager;
87import android.app.ActivityManagerNative;
88import android.app.AppGlobals;
89import android.app.IActivityManager;
90import android.app.admin.IDevicePolicyManager;
91import android.app.backup.IBackupManager;
92import android.app.usage.UsageStats;
93import android.app.usage.UsageStatsManager;
94import android.content.BroadcastReceiver;
95import android.content.ComponentName;
96import android.content.Context;
97import android.content.IIntentReceiver;
98import android.content.Intent;
99import android.content.IntentFilter;
100import android.content.IntentSender;
101import android.content.IntentSender.SendIntentException;
102import android.content.ServiceConnection;
103import android.content.pm.ActivityInfo;
104import android.content.pm.ApplicationInfo;
105import android.content.pm.FeatureInfo;
106import android.content.pm.IPackageDataObserver;
107import android.content.pm.IPackageDeleteObserver;
108import android.content.pm.IPackageDeleteObserver2;
109import android.content.pm.IPackageInstallObserver2;
110import android.content.pm.IPackageInstaller;
111import android.content.pm.IPackageManager;
112import android.content.pm.IPackageMoveObserver;
113import android.content.pm.IPackageStatsObserver;
114import android.content.pm.InstrumentationInfo;
115import android.content.pm.KeySet;
116import android.content.pm.ManifestDigest;
117import android.content.pm.PackageCleanItem;
118import android.content.pm.PackageInfo;
119import android.content.pm.PackageInfoLite;
120import android.content.pm.PackageInstaller;
121import android.content.pm.PackageManager;
122import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
123import android.content.pm.PackageParser.ActivityIntentInfo;
124import android.content.pm.PackageParser.PackageLite;
125import android.content.pm.PackageParser.PackageParserException;
126import android.content.pm.PackageParser;
127import android.content.pm.PackageStats;
128import android.content.pm.PackageUserState;
129import android.content.pm.ParceledListSlice;
130import android.content.pm.PermissionGroupInfo;
131import android.content.pm.PermissionInfo;
132import android.content.pm.ProviderInfo;
133import android.content.pm.ResolveInfo;
134import android.content.pm.ServiceInfo;
135import android.content.pm.Signature;
136import android.content.pm.UserInfo;
137import android.content.pm.VerificationParams;
138import android.content.pm.VerifierDeviceIdentity;
139import android.content.pm.VerifierInfo;
140import android.content.res.Resources;
141import android.hardware.display.DisplayManager;
142import android.net.Uri;
143import android.os.Binder;
144import android.os.Build;
145import android.os.Bundle;
146import android.os.Environment;
147import android.os.Environment.UserEnvironment;
148import android.os.storage.IMountService;
149import android.os.storage.StorageManager;
150import android.os.Debug;
151import android.os.FileUtils;
152import android.os.Handler;
153import android.os.IBinder;
154import android.os.Looper;
155import android.os.Message;
156import android.os.Parcel;
157import android.os.ParcelFileDescriptor;
158import android.os.Process;
159import android.os.RemoteException;
160import android.os.SELinux;
161import android.os.ServiceManager;
162import android.os.SystemClock;
163import android.os.SystemProperties;
164import android.os.UserHandle;
165import android.os.UserManager;
166import android.security.KeyStore;
167import android.security.SystemKeyStore;
168import android.system.ErrnoException;
169import android.system.Os;
170import android.system.StructStat;
171import android.text.TextUtils;
172import android.text.format.DateUtils;
173import android.util.ArraySet;
174import android.util.AtomicFile;
175import android.util.DisplayMetrics;
176import android.util.EventLog;
177import android.util.ExceptionUtils;
178import android.util.Log;
179import android.util.LogPrinter;
180import android.util.PrintStreamPrinter;
181import android.util.Slog;
182import android.util.SparseArray;
183import android.util.SparseBooleanArray;
184import android.view.Display;
185
186import java.io.BufferedInputStream;
187import java.io.BufferedOutputStream;
188import java.io.BufferedReader;
189import java.io.File;
190import java.io.FileDescriptor;
191import java.io.FileNotFoundException;
192import java.io.FileOutputStream;
193import java.io.FileReader;
194import java.io.FilenameFilter;
195import java.io.IOException;
196import java.io.InputStream;
197import java.io.PrintWriter;
198import java.nio.charset.StandardCharsets;
199import java.security.NoSuchAlgorithmException;
200import java.security.PublicKey;
201import java.security.cert.CertificateEncodingException;
202import java.security.cert.CertificateException;
203import java.text.SimpleDateFormat;
204import java.util.ArrayList;
205import java.util.Arrays;
206import java.util.Collection;
207import java.util.Collections;
208import java.util.Comparator;
209import java.util.Date;
210import java.util.Iterator;
211import java.util.List;
212import java.util.Map;
213import java.util.Objects;
214import java.util.Set;
215import java.util.concurrent.atomic.AtomicBoolean;
216import java.util.concurrent.atomic.AtomicLong;
217
218import dalvik.system.DexFile;
219import dalvik.system.VMRuntime;
220
221import libcore.io.IoUtils;
222import libcore.util.EmptyArray;
223
224/**
225 * Keep track of all those .apks everywhere.
226 *
227 * This is very central to the platform's security; please run the unit
228 * tests whenever making modifications here:
229 *
230mmm frameworks/base/tests/AndroidTests
231adb install -r -f out/target/product/passion/data/app/AndroidTests.apk
232adb shell am instrument -w -e class com.android.unit_tests.PackageManagerTests com.android.unit_tests/android.test.InstrumentationTestRunner
233 *
234 * {@hide}
235 */
236public class PackageManagerService extends IPackageManager.Stub {
237    static final String TAG = "PackageManager";
238    static final boolean DEBUG_SETTINGS = false;
239    static final boolean DEBUG_PREFERRED = false;
240    static final boolean DEBUG_UPGRADE = false;
241    private static final boolean DEBUG_INSTALL = false;
242    private static final boolean DEBUG_REMOVE = false;
243    private static final boolean DEBUG_BROADCASTS = false;
244    private static final boolean DEBUG_SHOW_INFO = false;
245    private static final boolean DEBUG_PACKAGE_INFO = false;
246    private static final boolean DEBUG_INTENT_MATCHING = false;
247    private static final boolean DEBUG_PACKAGE_SCANNING = false;
248    private static final boolean DEBUG_VERIFY = false;
249    private static final boolean DEBUG_DEXOPT = false;
250    private static final boolean DEBUG_ABI_SELECTION = false;
251
252    private static final int RADIO_UID = Process.PHONE_UID;
253    private static final int LOG_UID = Process.LOG_UID;
254    private static final int NFC_UID = Process.NFC_UID;
255    private static final int BLUETOOTH_UID = Process.BLUETOOTH_UID;
256    private static final int SHELL_UID = Process.SHELL_UID;
257
258    // Cap the size of permission trees that 3rd party apps can define
259    private static final int MAX_PERMISSION_TREE_FOOTPRINT = 32768;     // characters of text
260
261    // Suffix used during package installation when copying/moving
262    // package apks to install directory.
263    private static final String INSTALL_PACKAGE_SUFFIX = "-";
264
265    static final int SCAN_NO_DEX = 1<<1;
266    static final int SCAN_FORCE_DEX = 1<<2;
267    static final int SCAN_UPDATE_SIGNATURE = 1<<3;
268    static final int SCAN_NEW_INSTALL = 1<<4;
269    static final int SCAN_NO_PATHS = 1<<5;
270    static final int SCAN_UPDATE_TIME = 1<<6;
271    static final int SCAN_DEFER_DEX = 1<<7;
272    static final int SCAN_BOOTING = 1<<8;
273    static final int SCAN_TRUSTED_OVERLAY = 1<<9;
274    static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<10;
275    static final int SCAN_REPLACING = 1<<11;
276    static final int SCAN_REQUIRE_KNOWN = 1<<12;
277
278    static final int REMOVE_CHATTY = 1<<16;
279
280    /**
281     * Timeout (in milliseconds) after which the watchdog should declare that
282     * our handler thread is wedged.  The usual default for such things is one
283     * minute but we sometimes do very lengthy I/O operations on this thread,
284     * such as installing multi-gigabyte applications, so ours needs to be longer.
285     */
286    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
287
288    /**
289     * Wall-clock timeout (in milliseconds) after which we *require* that an fstrim
290     * be run on this device.  We use the value in the Settings.Global.MANDATORY_FSTRIM_INTERVAL
291     * settings entry if available, otherwise we use the hardcoded default.  If it's been
292     * more than this long since the last fstrim, we force one during the boot sequence.
293     *
294     * This backstops other fstrim scheduling:  if the device is alive at midnight+idle,
295     * one gets run at the next available charging+idle time.  This final mandatory
296     * no-fstrim check kicks in only of the other scheduling criteria is never met.
297     */
298    private static final long DEFAULT_MANDATORY_FSTRIM_INTERVAL = 3 * DateUtils.DAY_IN_MILLIS;
299
300    /**
301     * Whether verification is enabled by default.
302     */
303    private static final boolean DEFAULT_VERIFY_ENABLE = true;
304
305    /**
306     * The default maximum time to wait for the verification agent to return in
307     * milliseconds.
308     */
309    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
310
311    /**
312     * The default response for package verification timeout.
313     *
314     * This can be either PackageManager.VERIFICATION_ALLOW or
315     * PackageManager.VERIFICATION_REJECT.
316     */
317    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
318
319    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
320
321    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
322            DEFAULT_CONTAINER_PACKAGE,
323            "com.android.defcontainer.DefaultContainerService");
324
325    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
326
327    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
328
329    final ServiceThread mHandlerThread;
330
331    final PackageHandler mHandler;
332
333    /**
334     * Messages for {@link #mHandler} that need to wait for system ready before
335     * being dispatched.
336     */
337    private ArrayList<Message> mPostSystemReadyMessages;
338
339    final int mSdkVersion = Build.VERSION.SDK_INT;
340
341    final Context mContext;
342    final boolean mFactoryTest;
343    final boolean mOnlyCore;
344    final boolean mLazyDexOpt;
345    final long mDexOptLRUThresholdInMills;
346    final DisplayMetrics mMetrics;
347    final int mDefParseFlags;
348    final String[] mSeparateProcesses;
349    final boolean mIsUpgrade;
350
351    // This is where all application persistent data goes.
352    final File mAppDataDir;
353
354    // This is where all application persistent data goes for secondary users.
355    final File mUserAppDataDir;
356
357    /** The location for ASEC container files on internal storage. */
358    final String mAsecInternalPath;
359
360    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
361    // LOCK HELD.  Can be called with mInstallLock held.
362    final Installer mInstaller;
363
364    /** Directory where installed third-party apps stored */
365    final File mAppInstallDir;
366
367    /**
368     * Directory to which applications installed internally have their
369     * 32 bit native libraries copied.
370     */
371    private File mAppLib32InstallDir;
372
373    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
374    // apps.
375    final File mDrmAppPrivateInstallDir;
376
377    // ----------------------------------------------------------------
378
379    // Lock for state used when installing and doing other long running
380    // operations.  Methods that must be called with this lock held have
381    // the suffix "LI".
382    final Object mInstallLock = new Object();
383
384    // ----------------------------------------------------------------
385
386    // Keys are String (package name), values are Package.  This also serves
387    // as the lock for the global state.  Methods that must be called with
388    // this lock held have the prefix "LP".
389    final ArrayMap<String, PackageParser.Package> mPackages =
390            new ArrayMap<String, PackageParser.Package>();
391
392    // Tracks available target package names -> overlay package paths.
393    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
394        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
395
396    final Settings mSettings;
397    boolean mRestoredSettings;
398
399    // System configuration read by SystemConfig.
400    final int[] mGlobalGids;
401    final SparseArray<ArraySet<String>> mSystemPermissions;
402    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
403
404    // If mac_permissions.xml was found for seinfo labeling.
405    boolean mFoundPolicyFile;
406
407    // If a recursive restorecon of /data/data/<pkg> is needed.
408    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
409
410    public static final class SharedLibraryEntry {
411        public final String path;
412        public final String apk;
413
414        SharedLibraryEntry(String _path, String _apk) {
415            path = _path;
416            apk = _apk;
417        }
418    }
419
420    // Currently known shared libraries.
421    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
422            new ArrayMap<String, SharedLibraryEntry>();
423
424    // All available activities, for your resolving pleasure.
425    final ActivityIntentResolver mActivities =
426            new ActivityIntentResolver();
427
428    // All available receivers, for your resolving pleasure.
429    final ActivityIntentResolver mReceivers =
430            new ActivityIntentResolver();
431
432    // All available services, for your resolving pleasure.
433    final ServiceIntentResolver mServices = new ServiceIntentResolver();
434
435    // All available providers, for your resolving pleasure.
436    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
437
438    // Mapping from provider base names (first directory in content URI codePath)
439    // to the provider information.
440    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
441            new ArrayMap<String, PackageParser.Provider>();
442
443    // Mapping from instrumentation class names to info about them.
444    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
445            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
446
447    // Mapping from permission names to info about them.
448    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
449            new ArrayMap<String, PackageParser.PermissionGroup>();
450
451    // Packages whose data we have transfered into another package, thus
452    // should no longer exist.
453    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
454
455    // Broadcast actions that are only available to the system.
456    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
457
458    /** List of packages waiting for verification. */
459    final SparseArray<PackageVerificationState> mPendingVerification
460            = new SparseArray<PackageVerificationState>();
461
462    /** Set of packages associated with each app op permission. */
463    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
464
465    final PackageInstallerService mInstallerService;
466
467    private final PackageDexOptimizer mPackageDexOptimizer;
468    // Cache of users who need badging.
469    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
470
471    /** Token for keys in mPendingVerification. */
472    private int mPendingVerificationToken = 0;
473
474    volatile boolean mSystemReady;
475    volatile boolean mSafeMode;
476    volatile boolean mHasSystemUidErrors;
477
478    ApplicationInfo mAndroidApplication;
479    final ActivityInfo mResolveActivity = new ActivityInfo();
480    final ResolveInfo mResolveInfo = new ResolveInfo();
481    ComponentName mResolveComponentName;
482    PackageParser.Package mPlatformPackage;
483    ComponentName mCustomResolverComponentName;
484
485    boolean mResolverReplaced = false;
486
487    // Set of pending broadcasts for aggregating enable/disable of components.
488    static class PendingPackageBroadcasts {
489        // for each user id, a map of <package name -> components within that package>
490        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
491
492        public PendingPackageBroadcasts() {
493            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
494        }
495
496        public ArrayList<String> get(int userId, String packageName) {
497            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
498            return packages.get(packageName);
499        }
500
501        public void put(int userId, String packageName, ArrayList<String> components) {
502            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
503            packages.put(packageName, components);
504        }
505
506        public void remove(int userId, String packageName) {
507            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
508            if (packages != null) {
509                packages.remove(packageName);
510            }
511        }
512
513        public void remove(int userId) {
514            mUidMap.remove(userId);
515        }
516
517        public int userIdCount() {
518            return mUidMap.size();
519        }
520
521        public int userIdAt(int n) {
522            return mUidMap.keyAt(n);
523        }
524
525        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
526            return mUidMap.get(userId);
527        }
528
529        public int size() {
530            // total number of pending broadcast entries across all userIds
531            int num = 0;
532            for (int i = 0; i< mUidMap.size(); i++) {
533                num += mUidMap.valueAt(i).size();
534            }
535            return num;
536        }
537
538        public void clear() {
539            mUidMap.clear();
540        }
541
542        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
543            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
544            if (map == null) {
545                map = new ArrayMap<String, ArrayList<String>>();
546                mUidMap.put(userId, map);
547            }
548            return map;
549        }
550    }
551    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
552
553    // Service Connection to remote media container service to copy
554    // package uri's from external media onto secure containers
555    // or internal storage.
556    private IMediaContainerService mContainerService = null;
557
558    static final int SEND_PENDING_BROADCAST = 1;
559    static final int MCS_BOUND = 3;
560    static final int END_COPY = 4;
561    static final int INIT_COPY = 5;
562    static final int MCS_UNBIND = 6;
563    static final int START_CLEANING_PACKAGE = 7;
564    static final int FIND_INSTALL_LOC = 8;
565    static final int POST_INSTALL = 9;
566    static final int MCS_RECONNECT = 10;
567    static final int MCS_GIVE_UP = 11;
568    static final int UPDATED_MEDIA_STATUS = 12;
569    static final int WRITE_SETTINGS = 13;
570    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
571    static final int PACKAGE_VERIFIED = 15;
572    static final int CHECK_PENDING_VERIFICATION = 16;
573
574    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
575
576    // Delay time in millisecs
577    static final int BROADCAST_DELAY = 10 * 1000;
578
579    static UserManagerService sUserManager;
580
581    // Stores a list of users whose package restrictions file needs to be updated
582    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
583
584    final private DefaultContainerConnection mDefContainerConn =
585            new DefaultContainerConnection();
586    class DefaultContainerConnection implements ServiceConnection {
587        public void onServiceConnected(ComponentName name, IBinder service) {
588            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
589            IMediaContainerService imcs =
590                IMediaContainerService.Stub.asInterface(service);
591            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
592        }
593
594        public void onServiceDisconnected(ComponentName name) {
595            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
596        }
597    };
598
599    // Recordkeeping of restore-after-install operations that are currently in flight
600    // between the Package Manager and the Backup Manager
601    class PostInstallData {
602        public InstallArgs args;
603        public PackageInstalledInfo res;
604
605        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
606            args = _a;
607            res = _r;
608        }
609    };
610    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
611    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
612
613    private final String mRequiredVerifierPackage;
614
615    private final PackageUsage mPackageUsage = new PackageUsage();
616
617    private class PackageUsage {
618        private static final int WRITE_INTERVAL
619            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
620
621        private final Object mFileLock = new Object();
622        private final AtomicLong mLastWritten = new AtomicLong(0);
623        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
624
625        private boolean mIsHistoricalPackageUsageAvailable = true;
626
627        boolean isHistoricalPackageUsageAvailable() {
628            return mIsHistoricalPackageUsageAvailable;
629        }
630
631        void write(boolean force) {
632            if (force) {
633                writeInternal();
634                return;
635            }
636            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
637                && !DEBUG_DEXOPT) {
638                return;
639            }
640            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
641                new Thread("PackageUsage_DiskWriter") {
642                    @Override
643                    public void run() {
644                        try {
645                            writeInternal();
646                        } finally {
647                            mBackgroundWriteRunning.set(false);
648                        }
649                    }
650                }.start();
651            }
652        }
653
654        private void writeInternal() {
655            synchronized (mPackages) {
656                synchronized (mFileLock) {
657                    AtomicFile file = getFile();
658                    FileOutputStream f = null;
659                    try {
660                        f = file.startWrite();
661                        BufferedOutputStream out = new BufferedOutputStream(f);
662                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
663                        StringBuilder sb = new StringBuilder();
664                        for (PackageParser.Package pkg : mPackages.values()) {
665                            if (pkg.mLastPackageUsageTimeInMills == 0) {
666                                continue;
667                            }
668                            sb.setLength(0);
669                            sb.append(pkg.packageName);
670                            sb.append(' ');
671                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
672                            sb.append('\n');
673                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
674                        }
675                        out.flush();
676                        file.finishWrite(f);
677                    } catch (IOException e) {
678                        if (f != null) {
679                            file.failWrite(f);
680                        }
681                        Log.e(TAG, "Failed to write package usage times", e);
682                    }
683                }
684            }
685            mLastWritten.set(SystemClock.elapsedRealtime());
686        }
687
688        void readLP() {
689            synchronized (mFileLock) {
690                AtomicFile file = getFile();
691                BufferedInputStream in = null;
692                try {
693                    in = new BufferedInputStream(file.openRead());
694                    StringBuffer sb = new StringBuffer();
695                    while (true) {
696                        String packageName = readToken(in, sb, ' ');
697                        if (packageName == null) {
698                            break;
699                        }
700                        String timeInMillisString = readToken(in, sb, '\n');
701                        if (timeInMillisString == null) {
702                            throw new IOException("Failed to find last usage time for package "
703                                                  + packageName);
704                        }
705                        PackageParser.Package pkg = mPackages.get(packageName);
706                        if (pkg == null) {
707                            continue;
708                        }
709                        long timeInMillis;
710                        try {
711                            timeInMillis = Long.parseLong(timeInMillisString.toString());
712                        } catch (NumberFormatException e) {
713                            throw new IOException("Failed to parse " + timeInMillisString
714                                                  + " as a long.", e);
715                        }
716                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
717                    }
718                } catch (FileNotFoundException expected) {
719                    mIsHistoricalPackageUsageAvailable = false;
720                } catch (IOException e) {
721                    Log.w(TAG, "Failed to read package usage times", e);
722                } finally {
723                    IoUtils.closeQuietly(in);
724                }
725            }
726            mLastWritten.set(SystemClock.elapsedRealtime());
727        }
728
729        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
730                throws IOException {
731            sb.setLength(0);
732            while (true) {
733                int ch = in.read();
734                if (ch == -1) {
735                    if (sb.length() == 0) {
736                        return null;
737                    }
738                    throw new IOException("Unexpected EOF");
739                }
740                if (ch == endOfToken) {
741                    return sb.toString();
742                }
743                sb.append((char)ch);
744            }
745        }
746
747        private AtomicFile getFile() {
748            File dataDir = Environment.getDataDirectory();
749            File systemDir = new File(dataDir, "system");
750            File fname = new File(systemDir, "package-usage.list");
751            return new AtomicFile(fname);
752        }
753    }
754
755    class PackageHandler extends Handler {
756        private boolean mBound = false;
757        final ArrayList<HandlerParams> mPendingInstalls =
758            new ArrayList<HandlerParams>();
759
760        private boolean connectToService() {
761            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
762                    " DefaultContainerService");
763            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
764            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
765            if (mContext.bindServiceAsUser(service, mDefContainerConn,
766                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
767                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
768                mBound = true;
769                return true;
770            }
771            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
772            return false;
773        }
774
775        private void disconnectService() {
776            mContainerService = null;
777            mBound = false;
778            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
779            mContext.unbindService(mDefContainerConn);
780            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
781        }
782
783        PackageHandler(Looper looper) {
784            super(looper);
785        }
786
787        public void handleMessage(Message msg) {
788            try {
789                doHandleMessage(msg);
790            } finally {
791                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
792            }
793        }
794
795        void doHandleMessage(Message msg) {
796            switch (msg.what) {
797                case INIT_COPY: {
798                    HandlerParams params = (HandlerParams) msg.obj;
799                    int idx = mPendingInstalls.size();
800                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
801                    // If a bind was already initiated we dont really
802                    // need to do anything. The pending install
803                    // will be processed later on.
804                    if (!mBound) {
805                        // If this is the only one pending we might
806                        // have to bind to the service again.
807                        if (!connectToService()) {
808                            Slog.e(TAG, "Failed to bind to media container service");
809                            params.serviceError();
810                            return;
811                        } else {
812                            // Once we bind to the service, the first
813                            // pending request will be processed.
814                            mPendingInstalls.add(idx, params);
815                        }
816                    } else {
817                        mPendingInstalls.add(idx, params);
818                        // Already bound to the service. Just make
819                        // sure we trigger off processing the first request.
820                        if (idx == 0) {
821                            mHandler.sendEmptyMessage(MCS_BOUND);
822                        }
823                    }
824                    break;
825                }
826                case MCS_BOUND: {
827                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
828                    if (msg.obj != null) {
829                        mContainerService = (IMediaContainerService) msg.obj;
830                    }
831                    if (mContainerService == null) {
832                        // Something seriously wrong. Bail out
833                        Slog.e(TAG, "Cannot bind to media container service");
834                        for (HandlerParams params : mPendingInstalls) {
835                            // Indicate service bind error
836                            params.serviceError();
837                        }
838                        mPendingInstalls.clear();
839                    } else if (mPendingInstalls.size() > 0) {
840                        HandlerParams params = mPendingInstalls.get(0);
841                        if (params != null) {
842                            if (params.startCopy()) {
843                                // We are done...  look for more work or to
844                                // go idle.
845                                if (DEBUG_SD_INSTALL) Log.i(TAG,
846                                        "Checking for more work or unbind...");
847                                // Delete pending install
848                                if (mPendingInstalls.size() > 0) {
849                                    mPendingInstalls.remove(0);
850                                }
851                                if (mPendingInstalls.size() == 0) {
852                                    if (mBound) {
853                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
854                                                "Posting delayed MCS_UNBIND");
855                                        removeMessages(MCS_UNBIND);
856                                        Message ubmsg = obtainMessage(MCS_UNBIND);
857                                        // Unbind after a little delay, to avoid
858                                        // continual thrashing.
859                                        sendMessageDelayed(ubmsg, 10000);
860                                    }
861                                } else {
862                                    // There are more pending requests in queue.
863                                    // Just post MCS_BOUND message to trigger processing
864                                    // of next pending install.
865                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
866                                            "Posting MCS_BOUND for next work");
867                                    mHandler.sendEmptyMessage(MCS_BOUND);
868                                }
869                            }
870                        }
871                    } else {
872                        // Should never happen ideally.
873                        Slog.w(TAG, "Empty queue");
874                    }
875                    break;
876                }
877                case MCS_RECONNECT: {
878                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
879                    if (mPendingInstalls.size() > 0) {
880                        if (mBound) {
881                            disconnectService();
882                        }
883                        if (!connectToService()) {
884                            Slog.e(TAG, "Failed to bind to media container service");
885                            for (HandlerParams params : mPendingInstalls) {
886                                // Indicate service bind error
887                                params.serviceError();
888                            }
889                            mPendingInstalls.clear();
890                        }
891                    }
892                    break;
893                }
894                case MCS_UNBIND: {
895                    // If there is no actual work left, then time to unbind.
896                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
897
898                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
899                        if (mBound) {
900                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
901
902                            disconnectService();
903                        }
904                    } else if (mPendingInstalls.size() > 0) {
905                        // There are more pending requests in queue.
906                        // Just post MCS_BOUND message to trigger processing
907                        // of next pending install.
908                        mHandler.sendEmptyMessage(MCS_BOUND);
909                    }
910
911                    break;
912                }
913                case MCS_GIVE_UP: {
914                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
915                    mPendingInstalls.remove(0);
916                    break;
917                }
918                case SEND_PENDING_BROADCAST: {
919                    String packages[];
920                    ArrayList<String> components[];
921                    int size = 0;
922                    int uids[];
923                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
924                    synchronized (mPackages) {
925                        if (mPendingBroadcasts == null) {
926                            return;
927                        }
928                        size = mPendingBroadcasts.size();
929                        if (size <= 0) {
930                            // Nothing to be done. Just return
931                            return;
932                        }
933                        packages = new String[size];
934                        components = new ArrayList[size];
935                        uids = new int[size];
936                        int i = 0;  // filling out the above arrays
937
938                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
939                            int packageUserId = mPendingBroadcasts.userIdAt(n);
940                            Iterator<Map.Entry<String, ArrayList<String>>> it
941                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
942                                            .entrySet().iterator();
943                            while (it.hasNext() && i < size) {
944                                Map.Entry<String, ArrayList<String>> ent = it.next();
945                                packages[i] = ent.getKey();
946                                components[i] = ent.getValue();
947                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
948                                uids[i] = (ps != null)
949                                        ? UserHandle.getUid(packageUserId, ps.appId)
950                                        : -1;
951                                i++;
952                            }
953                        }
954                        size = i;
955                        mPendingBroadcasts.clear();
956                    }
957                    // Send broadcasts
958                    for (int i = 0; i < size; i++) {
959                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
960                    }
961                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
962                    break;
963                }
964                case START_CLEANING_PACKAGE: {
965                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
966                    final String packageName = (String)msg.obj;
967                    final int userId = msg.arg1;
968                    final boolean andCode = msg.arg2 != 0;
969                    synchronized (mPackages) {
970                        if (userId == UserHandle.USER_ALL) {
971                            int[] users = sUserManager.getUserIds();
972                            for (int user : users) {
973                                mSettings.addPackageToCleanLPw(
974                                        new PackageCleanItem(user, packageName, andCode));
975                            }
976                        } else {
977                            mSettings.addPackageToCleanLPw(
978                                    new PackageCleanItem(userId, packageName, andCode));
979                        }
980                    }
981                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
982                    startCleaningPackages();
983                } break;
984                case POST_INSTALL: {
985                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
986                    PostInstallData data = mRunningInstalls.get(msg.arg1);
987                    mRunningInstalls.delete(msg.arg1);
988                    boolean deleteOld = false;
989
990                    if (data != null) {
991                        InstallArgs args = data.args;
992                        PackageInstalledInfo res = data.res;
993
994                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
995                            res.removedInfo.sendBroadcast(false, true, false);
996                            Bundle extras = new Bundle(1);
997                            extras.putInt(Intent.EXTRA_UID, res.uid);
998                            // Determine the set of users who are adding this
999                            // package for the first time vs. those who are seeing
1000                            // an update.
1001                            int[] firstUsers;
1002                            int[] updateUsers = new int[0];
1003                            if (res.origUsers == null || res.origUsers.length == 0) {
1004                                firstUsers = res.newUsers;
1005                            } else {
1006                                firstUsers = new int[0];
1007                                for (int i=0; i<res.newUsers.length; i++) {
1008                                    int user = res.newUsers[i];
1009                                    boolean isNew = true;
1010                                    for (int j=0; j<res.origUsers.length; j++) {
1011                                        if (res.origUsers[j] == user) {
1012                                            isNew = false;
1013                                            break;
1014                                        }
1015                                    }
1016                                    if (isNew) {
1017                                        int[] newFirst = new int[firstUsers.length+1];
1018                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1019                                                firstUsers.length);
1020                                        newFirst[firstUsers.length] = user;
1021                                        firstUsers = newFirst;
1022                                    } else {
1023                                        int[] newUpdate = new int[updateUsers.length+1];
1024                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1025                                                updateUsers.length);
1026                                        newUpdate[updateUsers.length] = user;
1027                                        updateUsers = newUpdate;
1028                                    }
1029                                }
1030                            }
1031                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1032                                    res.pkg.applicationInfo.packageName,
1033                                    extras, null, null, firstUsers);
1034                            final boolean update = res.removedInfo.removedPackage != null;
1035                            if (update) {
1036                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1037                            }
1038                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1039                                    res.pkg.applicationInfo.packageName,
1040                                    extras, null, null, updateUsers);
1041                            if (update) {
1042                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1043                                        res.pkg.applicationInfo.packageName,
1044                                        extras, null, null, updateUsers);
1045                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1046                                        null, null,
1047                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1048
1049                                // treat asec-hosted packages like removable media on upgrade
1050                                if (res.pkg.isForwardLocked() || isExternal(res.pkg)) {
1051                                    if (DEBUG_INSTALL) {
1052                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1053                                                + " is ASEC-hosted -> AVAILABLE");
1054                                    }
1055                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1056                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1057                                    pkgList.add(res.pkg.applicationInfo.packageName);
1058                                    sendResourcesChangedBroadcast(true, true,
1059                                            pkgList,uidArray, null);
1060                                }
1061                            }
1062                            if (res.removedInfo.args != null) {
1063                                // Remove the replaced package's older resources safely now
1064                                deleteOld = true;
1065                            }
1066
1067                            // Log current value of "unknown sources" setting
1068                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1069                                getUnknownSourcesSettings());
1070                        }
1071                        // Force a gc to clear up things
1072                        Runtime.getRuntime().gc();
1073                        // We delete after a gc for applications  on sdcard.
1074                        if (deleteOld) {
1075                            synchronized (mInstallLock) {
1076                                res.removedInfo.args.doPostDeleteLI(true);
1077                            }
1078                        }
1079                        if (args.observer != null) {
1080                            try {
1081                                Bundle extras = extrasForInstallResult(res);
1082                                args.observer.onPackageInstalled(res.name, res.returnCode,
1083                                        res.returnMsg, extras);
1084                            } catch (RemoteException e) {
1085                                Slog.i(TAG, "Observer no longer exists.");
1086                            }
1087                        }
1088                    } else {
1089                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1090                    }
1091                } break;
1092                case UPDATED_MEDIA_STATUS: {
1093                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1094                    boolean reportStatus = msg.arg1 == 1;
1095                    boolean doGc = msg.arg2 == 1;
1096                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1097                    if (doGc) {
1098                        // Force a gc to clear up stale containers.
1099                        Runtime.getRuntime().gc();
1100                    }
1101                    if (msg.obj != null) {
1102                        @SuppressWarnings("unchecked")
1103                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1104                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1105                        // Unload containers
1106                        unloadAllContainers(args);
1107                    }
1108                    if (reportStatus) {
1109                        try {
1110                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1111                            PackageHelper.getMountService().finishMediaUpdate();
1112                        } catch (RemoteException e) {
1113                            Log.e(TAG, "MountService not running?");
1114                        }
1115                    }
1116                } break;
1117                case WRITE_SETTINGS: {
1118                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1119                    synchronized (mPackages) {
1120                        removeMessages(WRITE_SETTINGS);
1121                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1122                        mSettings.writeLPr();
1123                        mDirtyUsers.clear();
1124                    }
1125                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1126                } break;
1127                case WRITE_PACKAGE_RESTRICTIONS: {
1128                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1129                    synchronized (mPackages) {
1130                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1131                        for (int userId : mDirtyUsers) {
1132                            mSettings.writePackageRestrictionsLPr(userId);
1133                        }
1134                        mDirtyUsers.clear();
1135                    }
1136                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1137                } break;
1138                case CHECK_PENDING_VERIFICATION: {
1139                    final int verificationId = msg.arg1;
1140                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1141
1142                    if ((state != null) && !state.timeoutExtended()) {
1143                        final InstallArgs args = state.getInstallArgs();
1144                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1145
1146                        Slog.i(TAG, "Verification timed out for " + originUri);
1147                        mPendingVerification.remove(verificationId);
1148
1149                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1150
1151                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1152                            Slog.i(TAG, "Continuing with installation of " + originUri);
1153                            state.setVerifierResponse(Binder.getCallingUid(),
1154                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1155                            broadcastPackageVerified(verificationId, originUri,
1156                                    PackageManager.VERIFICATION_ALLOW,
1157                                    state.getInstallArgs().getUser());
1158                            try {
1159                                ret = args.copyApk(mContainerService, true);
1160                            } catch (RemoteException e) {
1161                                Slog.e(TAG, "Could not contact the ContainerService");
1162                            }
1163                        } else {
1164                            broadcastPackageVerified(verificationId, originUri,
1165                                    PackageManager.VERIFICATION_REJECT,
1166                                    state.getInstallArgs().getUser());
1167                        }
1168
1169                        processPendingInstall(args, ret);
1170                        mHandler.sendEmptyMessage(MCS_UNBIND);
1171                    }
1172                    break;
1173                }
1174                case PACKAGE_VERIFIED: {
1175                    final int verificationId = msg.arg1;
1176
1177                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1178                    if (state == null) {
1179                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1180                        break;
1181                    }
1182
1183                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1184
1185                    state.setVerifierResponse(response.callerUid, response.code);
1186
1187                    if (state.isVerificationComplete()) {
1188                        mPendingVerification.remove(verificationId);
1189
1190                        final InstallArgs args = state.getInstallArgs();
1191                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1192
1193                        int ret;
1194                        if (state.isInstallAllowed()) {
1195                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1196                            broadcastPackageVerified(verificationId, originUri,
1197                                    response.code, state.getInstallArgs().getUser());
1198                            try {
1199                                ret = args.copyApk(mContainerService, true);
1200                            } catch (RemoteException e) {
1201                                Slog.e(TAG, "Could not contact the ContainerService");
1202                            }
1203                        } else {
1204                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1205                        }
1206
1207                        processPendingInstall(args, ret);
1208
1209                        mHandler.sendEmptyMessage(MCS_UNBIND);
1210                    }
1211
1212                    break;
1213                }
1214            }
1215        }
1216    }
1217
1218    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1219        Bundle extras = null;
1220        switch (res.returnCode) {
1221            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1222                extras = new Bundle();
1223                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1224                        res.origPermission);
1225                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1226                        res.origPackage);
1227                break;
1228            }
1229        }
1230        return extras;
1231    }
1232
1233    void scheduleWriteSettingsLocked() {
1234        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1235            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1236        }
1237    }
1238
1239    void scheduleWritePackageRestrictionsLocked(int userId) {
1240        if (!sUserManager.exists(userId)) return;
1241        mDirtyUsers.add(userId);
1242        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1243            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1244        }
1245    }
1246
1247    public static final PackageManagerService main(Context context, Installer installer,
1248            boolean factoryTest, boolean onlyCore) {
1249        PackageManagerService m = new PackageManagerService(context, installer,
1250                factoryTest, onlyCore);
1251        ServiceManager.addService("package", m);
1252        return m;
1253    }
1254
1255    static String[] splitString(String str, char sep) {
1256        int count = 1;
1257        int i = 0;
1258        while ((i=str.indexOf(sep, i)) >= 0) {
1259            count++;
1260            i++;
1261        }
1262
1263        String[] res = new String[count];
1264        i=0;
1265        count = 0;
1266        int lastI=0;
1267        while ((i=str.indexOf(sep, i)) >= 0) {
1268            res[count] = str.substring(lastI, i);
1269            count++;
1270            i++;
1271            lastI = i;
1272        }
1273        res[count] = str.substring(lastI, str.length());
1274        return res;
1275    }
1276
1277    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1278        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1279                Context.DISPLAY_SERVICE);
1280        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1281    }
1282
1283    public PackageManagerService(Context context, Installer installer,
1284            boolean factoryTest, boolean onlyCore) {
1285        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1286                SystemClock.uptimeMillis());
1287
1288        if (mSdkVersion <= 0) {
1289            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1290        }
1291
1292        mContext = context;
1293        mFactoryTest = factoryTest;
1294        mOnlyCore = onlyCore;
1295        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1296        mMetrics = new DisplayMetrics();
1297        mSettings = new Settings(context);
1298        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1299                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1300        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1301                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1302        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1303                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1304        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1305                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1306        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1307                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1308        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1309                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1310
1311        // TODO: add a property to control this?
1312        long dexOptLRUThresholdInMinutes;
1313        if (mLazyDexOpt) {
1314            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1315        } else {
1316            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1317        }
1318        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1319
1320        String separateProcesses = SystemProperties.get("debug.separate_processes");
1321        if (separateProcesses != null && separateProcesses.length() > 0) {
1322            if ("*".equals(separateProcesses)) {
1323                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1324                mSeparateProcesses = null;
1325                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1326            } else {
1327                mDefParseFlags = 0;
1328                mSeparateProcesses = separateProcesses.split(",");
1329                Slog.w(TAG, "Running with debug.separate_processes: "
1330                        + separateProcesses);
1331            }
1332        } else {
1333            mDefParseFlags = 0;
1334            mSeparateProcesses = null;
1335        }
1336
1337        mInstaller = installer;
1338        mPackageDexOptimizer = new PackageDexOptimizer(this);
1339
1340        getDefaultDisplayMetrics(context, mMetrics);
1341
1342        SystemConfig systemConfig = SystemConfig.getInstance();
1343        mGlobalGids = systemConfig.getGlobalGids();
1344        mSystemPermissions = systemConfig.getSystemPermissions();
1345        mAvailableFeatures = systemConfig.getAvailableFeatures();
1346
1347        synchronized (mInstallLock) {
1348        // writer
1349        synchronized (mPackages) {
1350            mHandlerThread = new ServiceThread(TAG,
1351                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1352            mHandlerThread.start();
1353            mHandler = new PackageHandler(mHandlerThread.getLooper());
1354            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1355
1356            File dataDir = Environment.getDataDirectory();
1357            mAppDataDir = new File(dataDir, "data");
1358            mAppInstallDir = new File(dataDir, "app");
1359            mAppLib32InstallDir = new File(dataDir, "app-lib");
1360            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1361            mUserAppDataDir = new File(dataDir, "user");
1362            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1363
1364            sUserManager = new UserManagerService(context, this,
1365                    mInstallLock, mPackages);
1366
1367            // Propagate permission configuration in to package manager.
1368            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1369                    = systemConfig.getPermissions();
1370            for (int i=0; i<permConfig.size(); i++) {
1371                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1372                BasePermission bp = mSettings.mPermissions.get(perm.name);
1373                if (bp == null) {
1374                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1375                    mSettings.mPermissions.put(perm.name, bp);
1376                }
1377                if (perm.gids != null) {
1378                    bp.gids = appendInts(bp.gids, perm.gids);
1379                }
1380            }
1381
1382            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1383            for (int i=0; i<libConfig.size(); i++) {
1384                mSharedLibraries.put(libConfig.keyAt(i),
1385                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1386            }
1387
1388            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1389
1390            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1391                    mSdkVersion, mOnlyCore);
1392
1393            String customResolverActivity = Resources.getSystem().getString(
1394                    R.string.config_customResolverActivity);
1395            if (TextUtils.isEmpty(customResolverActivity)) {
1396                customResolverActivity = null;
1397            } else {
1398                mCustomResolverComponentName = ComponentName.unflattenFromString(
1399                        customResolverActivity);
1400            }
1401
1402            long startTime = SystemClock.uptimeMillis();
1403
1404            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1405                    startTime);
1406
1407            // Set flag to monitor and not change apk file paths when
1408            // scanning install directories.
1409            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1410
1411            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1412
1413            /**
1414             * Add everything in the in the boot class path to the
1415             * list of process files because dexopt will have been run
1416             * if necessary during zygote startup.
1417             */
1418            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1419            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1420
1421            if (bootClassPath != null) {
1422                String[] bootClassPathElements = splitString(bootClassPath, ':');
1423                for (String element : bootClassPathElements) {
1424                    alreadyDexOpted.add(element);
1425                }
1426            } else {
1427                Slog.w(TAG, "No BOOTCLASSPATH found!");
1428            }
1429
1430            if (systemServerClassPath != null) {
1431                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1432                for (String element : systemServerClassPathElements) {
1433                    alreadyDexOpted.add(element);
1434                }
1435            } else {
1436                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1437            }
1438
1439            final List<String> allInstructionSets = InstructionSets.getAllInstructionSets();
1440            final String[] dexCodeInstructionSets =
1441                    getDexCodeInstructionSets(
1442                            allInstructionSets.toArray(new String[allInstructionSets.size()]));
1443
1444            /**
1445             * Ensure all external libraries have had dexopt run on them.
1446             */
1447            if (mSharedLibraries.size() > 0) {
1448                // NOTE: For now, we're compiling these system "shared libraries"
1449                // (and framework jars) into all available architectures. It's possible
1450                // to compile them only when we come across an app that uses them (there's
1451                // already logic for that in scanPackageLI) but that adds some complexity.
1452                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1453                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1454                        final String lib = libEntry.path;
1455                        if (lib == null) {
1456                            continue;
1457                        }
1458
1459                        try {
1460                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1461                                                                                 dexCodeInstructionSet,
1462                                                                                 false);
1463                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1464                                alreadyDexOpted.add(lib);
1465
1466                                // The list of "shared libraries" we have at this point is
1467                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1468                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1469                                } else {
1470                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1471                                }
1472                            }
1473                        } catch (FileNotFoundException e) {
1474                            Slog.w(TAG, "Library not found: " + lib);
1475                        } catch (IOException e) {
1476                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1477                                    + e.getMessage());
1478                        }
1479                    }
1480                }
1481            }
1482
1483            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1484
1485            // Gross hack for now: we know this file doesn't contain any
1486            // code, so don't dexopt it to avoid the resulting log spew.
1487            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1488
1489            // Gross hack for now: we know this file is only part of
1490            // the boot class path for art, so don't dexopt it to
1491            // avoid the resulting log spew.
1492            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1493
1494            /**
1495             * And there are a number of commands implemented in Java, which
1496             * we currently need to do the dexopt on so that they can be
1497             * run from a non-root shell.
1498             */
1499            String[] frameworkFiles = frameworkDir.list();
1500            if (frameworkFiles != null) {
1501                // TODO: We could compile these only for the most preferred ABI. We should
1502                // first double check that the dex files for these commands are not referenced
1503                // by other system apps.
1504                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1505                    for (int i=0; i<frameworkFiles.length; i++) {
1506                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1507                        String path = libPath.getPath();
1508                        // Skip the file if we already did it.
1509                        if (alreadyDexOpted.contains(path)) {
1510                            continue;
1511                        }
1512                        // Skip the file if it is not a type we want to dexopt.
1513                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1514                            continue;
1515                        }
1516                        try {
1517                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1518                                                                                 dexCodeInstructionSet,
1519                                                                                 false);
1520                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1521                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1522                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1523                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1524                            }
1525                        } catch (FileNotFoundException e) {
1526                            Slog.w(TAG, "Jar not found: " + path);
1527                        } catch (IOException e) {
1528                            Slog.w(TAG, "Exception reading jar: " + path, e);
1529                        }
1530                    }
1531                }
1532            }
1533
1534            // Collect vendor overlay packages.
1535            // (Do this before scanning any apps.)
1536            // For security and version matching reason, only consider
1537            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1538            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1539            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1540                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1541
1542            // Find base frameworks (resource packages without code).
1543            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1544                    | PackageParser.PARSE_IS_SYSTEM_DIR
1545                    | PackageParser.PARSE_IS_PRIVILEGED,
1546                    scanFlags | SCAN_NO_DEX, 0);
1547
1548            // Collected privileged system packages.
1549            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1550            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1551                    | PackageParser.PARSE_IS_SYSTEM_DIR
1552                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1553
1554            // Collect ordinary system packages.
1555            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1556            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1557                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1558
1559            // Collect all vendor packages.
1560            File vendorAppDir = new File("/vendor/app");
1561            try {
1562                vendorAppDir = vendorAppDir.getCanonicalFile();
1563            } catch (IOException e) {
1564                // failed to look up canonical path, continue with original one
1565            }
1566            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1567                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1568
1569            // Collect all OEM packages.
1570            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1571            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1572                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1573
1574            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1575            mInstaller.moveFiles();
1576
1577            // Prune any system packages that no longer exist.
1578            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1579            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1580            if (!mOnlyCore) {
1581                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1582                while (psit.hasNext()) {
1583                    PackageSetting ps = psit.next();
1584
1585                    /*
1586                     * If this is not a system app, it can't be a
1587                     * disable system app.
1588                     */
1589                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1590                        continue;
1591                    }
1592
1593                    /*
1594                     * If the package is scanned, it's not erased.
1595                     */
1596                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1597                    if (scannedPkg != null) {
1598                        /*
1599                         * If the system app is both scanned and in the
1600                         * disabled packages list, then it must have been
1601                         * added via OTA. Remove it from the currently
1602                         * scanned package so the previously user-installed
1603                         * application can be scanned.
1604                         */
1605                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1606                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1607                                    + ps.name + "; removing system app.  Last known codePath="
1608                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1609                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1610                                    + scannedPkg.mVersionCode);
1611                            removePackageLI(ps, true);
1612                            expectingBetter.put(ps.name, ps.codePath);
1613                        }
1614
1615                        continue;
1616                    }
1617
1618                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1619                        psit.remove();
1620                        logCriticalInfo(Log.WARN, "System package " + ps.name
1621                                + " no longer exists; wiping its data");
1622                        removeDataDirsLI(ps.name);
1623                    } else {
1624                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1625                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1626                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1627                        }
1628                    }
1629                }
1630            }
1631
1632            //look for any incomplete package installations
1633            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1634            //clean up list
1635            for(int i = 0; i < deletePkgsList.size(); i++) {
1636                //clean up here
1637                cleanupInstallFailedPackage(deletePkgsList.get(i));
1638            }
1639            //delete tmp files
1640            deleteTempPackageFiles();
1641
1642            // Remove any shared userIDs that have no associated packages
1643            mSettings.pruneSharedUsersLPw();
1644
1645            if (!mOnlyCore) {
1646                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1647                        SystemClock.uptimeMillis());
1648                scanDirLI(mAppInstallDir, 0, scanFlags | SCAN_REQUIRE_KNOWN, 0);
1649
1650                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1651                        scanFlags | SCAN_REQUIRE_KNOWN, 0);
1652
1653                /**
1654                 * Remove disable package settings for any updated system
1655                 * apps that were removed via an OTA. If they're not a
1656                 * previously-updated app, remove them completely.
1657                 * Otherwise, just revoke their system-level permissions.
1658                 */
1659                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1660                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1661                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1662
1663                    String msg;
1664                    if (deletedPkg == null) {
1665                        msg = "Updated system package " + deletedAppName
1666                                + " no longer exists; wiping its data";
1667                        removeDataDirsLI(deletedAppName);
1668                    } else {
1669                        msg = "Updated system app + " + deletedAppName
1670                                + " no longer present; removing system privileges for "
1671                                + deletedAppName;
1672
1673                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1674
1675                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1676                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1677                    }
1678                    logCriticalInfo(Log.WARN, msg);
1679                }
1680
1681                /**
1682                 * Make sure all system apps that we expected to appear on
1683                 * the userdata partition actually showed up. If they never
1684                 * appeared, crawl back and revive the system version.
1685                 */
1686                for (int i = 0; i < expectingBetter.size(); i++) {
1687                    final String packageName = expectingBetter.keyAt(i);
1688                    if (!mPackages.containsKey(packageName)) {
1689                        final File scanFile = expectingBetter.valueAt(i);
1690
1691                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1692                                + " but never showed up; reverting to system");
1693
1694                        final int reparseFlags;
1695                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1696                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1697                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1698                                    | PackageParser.PARSE_IS_PRIVILEGED;
1699                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1700                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1701                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1702                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1703                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1704                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1705                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1706                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1707                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1708                        } else {
1709                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1710                            continue;
1711                        }
1712
1713                        mSettings.enableSystemPackageLPw(packageName);
1714
1715                        try {
1716                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1717                        } catch (PackageManagerException e) {
1718                            Slog.e(TAG, "Failed to parse original system package: "
1719                                    + e.getMessage());
1720                        }
1721                    }
1722                }
1723            }
1724
1725            // Now that we know all of the shared libraries, update all clients to have
1726            // the correct library paths.
1727            updateAllSharedLibrariesLPw();
1728
1729            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1730                // NOTE: We ignore potential failures here during a system scan (like
1731                // the rest of the commands above) because there's precious little we
1732                // can do about it. A settings error is reported, though.
1733                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1734                        false /* force dexopt */, false /* defer dexopt */);
1735            }
1736
1737            // Now that we know all the packages we are keeping,
1738            // read and update their last usage times.
1739            mPackageUsage.readLP();
1740
1741            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1742                    SystemClock.uptimeMillis());
1743            Slog.i(TAG, "Time to scan packages: "
1744                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1745                    + " seconds");
1746
1747            // If the platform SDK has changed since the last time we booted,
1748            // we need to re-grant app permission to catch any new ones that
1749            // appear.  This is really a hack, and means that apps can in some
1750            // cases get permissions that the user didn't initially explicitly
1751            // allow...  it would be nice to have some better way to handle
1752            // this situation.
1753            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1754                    != mSdkVersion;
1755            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1756                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1757                    + "; regranting permissions for internal storage");
1758            mSettings.mInternalSdkPlatform = mSdkVersion;
1759
1760            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1761                    | (regrantPermissions
1762                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1763                            : 0));
1764
1765            // If this is the first boot, and it is a normal boot, then
1766            // we need to initialize the default preferred apps.
1767            if (!mRestoredSettings && !onlyCore) {
1768                mSettings.readDefaultPreferredAppsLPw(this, 0);
1769            }
1770
1771            // If this is first boot after an OTA, and a normal boot, then
1772            // we need to clear code cache directories.
1773            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1774            if (mIsUpgrade && !onlyCore) {
1775                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1776                for (String pkgName : mSettings.mPackages.keySet()) {
1777                    deleteCodeCacheDirsLI(pkgName);
1778                }
1779                mSettings.mFingerprint = Build.FINGERPRINT;
1780            }
1781
1782            // All the changes are done during package scanning.
1783            mSettings.updateInternalDatabaseVersion();
1784
1785            // can downgrade to reader
1786            mSettings.writeLPr();
1787
1788            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1789                    SystemClock.uptimeMillis());
1790
1791
1792            mRequiredVerifierPackage = getRequiredVerifierLPr();
1793        } // synchronized (mPackages)
1794        } // synchronized (mInstallLock)
1795
1796        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1797
1798        // Now after opening every single application zip, make sure they
1799        // are all flushed.  Not really needed, but keeps things nice and
1800        // tidy.
1801        Runtime.getRuntime().gc();
1802    }
1803
1804    @Override
1805    public boolean isFirstBoot() {
1806        return !mRestoredSettings;
1807    }
1808
1809    @Override
1810    public boolean isOnlyCoreApps() {
1811        return mOnlyCore;
1812    }
1813
1814    @Override
1815    public boolean isUpgrade() {
1816        return mIsUpgrade;
1817    }
1818
1819    private String getRequiredVerifierLPr() {
1820        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1821        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1822                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1823
1824        String requiredVerifier = null;
1825
1826        final int N = receivers.size();
1827        for (int i = 0; i < N; i++) {
1828            final ResolveInfo info = receivers.get(i);
1829
1830            if (info.activityInfo == null) {
1831                continue;
1832            }
1833
1834            final String packageName = info.activityInfo.packageName;
1835
1836            final PackageSetting ps = mSettings.mPackages.get(packageName);
1837            if (ps == null) {
1838                continue;
1839            }
1840
1841            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1842            if (!gp.grantedPermissions
1843                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1844                continue;
1845            }
1846
1847            if (requiredVerifier != null) {
1848                throw new RuntimeException("There can be only one required verifier");
1849            }
1850
1851            requiredVerifier = packageName;
1852        }
1853
1854        return requiredVerifier;
1855    }
1856
1857    @Override
1858    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1859            throws RemoteException {
1860        try {
1861            return super.onTransact(code, data, reply, flags);
1862        } catch (RuntimeException e) {
1863            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1864                Slog.wtf(TAG, "Package Manager Crash", e);
1865            }
1866            throw e;
1867        }
1868    }
1869
1870    void cleanupInstallFailedPackage(PackageSetting ps) {
1871        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1872
1873        removeDataDirsLI(ps.name);
1874        if (ps.codePath != null) {
1875            if (ps.codePath.isDirectory()) {
1876                FileUtils.deleteContents(ps.codePath);
1877            }
1878            ps.codePath.delete();
1879        }
1880        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1881            if (ps.resourcePath.isDirectory()) {
1882                FileUtils.deleteContents(ps.resourcePath);
1883            }
1884            ps.resourcePath.delete();
1885        }
1886        mSettings.removePackageLPw(ps.name);
1887    }
1888
1889    static int[] appendInts(int[] cur, int[] add) {
1890        if (add == null) return cur;
1891        if (cur == null) return add;
1892        final int N = add.length;
1893        for (int i=0; i<N; i++) {
1894            cur = appendInt(cur, add[i]);
1895        }
1896        return cur;
1897    }
1898
1899    static int[] removeInts(int[] cur, int[] rem) {
1900        if (rem == null) return cur;
1901        if (cur == null) return cur;
1902        final int N = rem.length;
1903        for (int i=0; i<N; i++) {
1904            cur = removeInt(cur, rem[i]);
1905        }
1906        return cur;
1907    }
1908
1909    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1910        if (!sUserManager.exists(userId)) return null;
1911        final PackageSetting ps = (PackageSetting) p.mExtras;
1912        if (ps == null) {
1913            return null;
1914        }
1915        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1916        final PackageUserState state = ps.readUserState(userId);
1917        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1918                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1919                state, userId);
1920    }
1921
1922    @Override
1923    public boolean isPackageAvailable(String packageName, int userId) {
1924        if (!sUserManager.exists(userId)) return false;
1925        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1926        synchronized (mPackages) {
1927            PackageParser.Package p = mPackages.get(packageName);
1928            if (p != null) {
1929                final PackageSetting ps = (PackageSetting) p.mExtras;
1930                if (ps != null) {
1931                    final PackageUserState state = ps.readUserState(userId);
1932                    if (state != null) {
1933                        return PackageParser.isAvailable(state);
1934                    }
1935                }
1936            }
1937        }
1938        return false;
1939    }
1940
1941    @Override
1942    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1943        if (!sUserManager.exists(userId)) return null;
1944        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1945        // reader
1946        synchronized (mPackages) {
1947            PackageParser.Package p = mPackages.get(packageName);
1948            if (DEBUG_PACKAGE_INFO)
1949                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1950            if (p != null) {
1951                return generatePackageInfo(p, flags, userId);
1952            }
1953            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1954                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1955            }
1956        }
1957        return null;
1958    }
1959
1960    @Override
1961    public String[] currentToCanonicalPackageNames(String[] names) {
1962        String[] out = new String[names.length];
1963        // reader
1964        synchronized (mPackages) {
1965            for (int i=names.length-1; i>=0; i--) {
1966                PackageSetting ps = mSettings.mPackages.get(names[i]);
1967                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1968            }
1969        }
1970        return out;
1971    }
1972
1973    @Override
1974    public String[] canonicalToCurrentPackageNames(String[] names) {
1975        String[] out = new String[names.length];
1976        // reader
1977        synchronized (mPackages) {
1978            for (int i=names.length-1; i>=0; i--) {
1979                String cur = mSettings.mRenamedPackages.get(names[i]);
1980                out[i] = cur != null ? cur : names[i];
1981            }
1982        }
1983        return out;
1984    }
1985
1986    @Override
1987    public int getPackageUid(String packageName, int userId) {
1988        if (!sUserManager.exists(userId)) return -1;
1989        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1990        // reader
1991        synchronized (mPackages) {
1992            PackageParser.Package p = mPackages.get(packageName);
1993            if(p != null) {
1994                return UserHandle.getUid(userId, p.applicationInfo.uid);
1995            }
1996            PackageSetting ps = mSettings.mPackages.get(packageName);
1997            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1998                return -1;
1999            }
2000            p = ps.pkg;
2001            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
2002        }
2003    }
2004
2005    @Override
2006    public int[] getPackageGids(String packageName) {
2007        // reader
2008        synchronized (mPackages) {
2009            PackageParser.Package p = mPackages.get(packageName);
2010            if (DEBUG_PACKAGE_INFO)
2011                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2012            if (p != null) {
2013                final PackageSetting ps = (PackageSetting)p.mExtras;
2014                return ps.getGids();
2015            }
2016        }
2017        // stupid thing to indicate an error.
2018        return new int[0];
2019    }
2020
2021    static final PermissionInfo generatePermissionInfo(
2022            BasePermission bp, int flags) {
2023        if (bp.perm != null) {
2024            return PackageParser.generatePermissionInfo(bp.perm, flags);
2025        }
2026        PermissionInfo pi = new PermissionInfo();
2027        pi.name = bp.name;
2028        pi.packageName = bp.sourcePackage;
2029        pi.nonLocalizedLabel = bp.name;
2030        pi.protectionLevel = bp.protectionLevel;
2031        return pi;
2032    }
2033
2034    @Override
2035    public PermissionInfo getPermissionInfo(String name, int flags) {
2036        // reader
2037        synchronized (mPackages) {
2038            final BasePermission p = mSettings.mPermissions.get(name);
2039            if (p != null) {
2040                return generatePermissionInfo(p, flags);
2041            }
2042            return null;
2043        }
2044    }
2045
2046    @Override
2047    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2048        // reader
2049        synchronized (mPackages) {
2050            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2051            for (BasePermission p : mSettings.mPermissions.values()) {
2052                if (group == null) {
2053                    if (p.perm == null || p.perm.info.group == null) {
2054                        out.add(generatePermissionInfo(p, flags));
2055                    }
2056                } else {
2057                    if (p.perm != null && group.equals(p.perm.info.group)) {
2058                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2059                    }
2060                }
2061            }
2062
2063            if (out.size() > 0) {
2064                return out;
2065            }
2066            return mPermissionGroups.containsKey(group) ? out : null;
2067        }
2068    }
2069
2070    @Override
2071    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2072        // reader
2073        synchronized (mPackages) {
2074            return PackageParser.generatePermissionGroupInfo(
2075                    mPermissionGroups.get(name), flags);
2076        }
2077    }
2078
2079    @Override
2080    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2081        // reader
2082        synchronized (mPackages) {
2083            final int N = mPermissionGroups.size();
2084            ArrayList<PermissionGroupInfo> out
2085                    = new ArrayList<PermissionGroupInfo>(N);
2086            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2087                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2088            }
2089            return out;
2090        }
2091    }
2092
2093    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2094            int userId) {
2095        if (!sUserManager.exists(userId)) return null;
2096        PackageSetting ps = mSettings.mPackages.get(packageName);
2097        if (ps != null) {
2098            if (ps.pkg == null) {
2099                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2100                        flags, userId);
2101                if (pInfo != null) {
2102                    return pInfo.applicationInfo;
2103                }
2104                return null;
2105            }
2106            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2107                    ps.readUserState(userId), userId);
2108        }
2109        return null;
2110    }
2111
2112    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2113            int userId) {
2114        if (!sUserManager.exists(userId)) return null;
2115        PackageSetting ps = mSettings.mPackages.get(packageName);
2116        if (ps != null) {
2117            PackageParser.Package pkg = ps.pkg;
2118            if (pkg == null) {
2119                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2120                    return null;
2121                }
2122                // Only data remains, so we aren't worried about code paths
2123                pkg = new PackageParser.Package(packageName);
2124                pkg.applicationInfo.packageName = packageName;
2125                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2126                pkg.applicationInfo.privateFlags = ps.pkgPrivateFlags;
2127                pkg.applicationInfo.dataDir =
2128                        getDataPathForPackage(packageName, 0).getPath();
2129                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2130                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2131            }
2132            return generatePackageInfo(pkg, flags, userId);
2133        }
2134        return null;
2135    }
2136
2137    @Override
2138    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2139        if (!sUserManager.exists(userId)) return null;
2140        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2141        // writer
2142        synchronized (mPackages) {
2143            PackageParser.Package p = mPackages.get(packageName);
2144            if (DEBUG_PACKAGE_INFO) Log.v(
2145                    TAG, "getApplicationInfo " + packageName
2146                    + ": " + p);
2147            if (p != null) {
2148                PackageSetting ps = mSettings.mPackages.get(packageName);
2149                if (ps == null) return null;
2150                // Note: isEnabledLP() does not apply here - always return info
2151                return PackageParser.generateApplicationInfo(
2152                        p, flags, ps.readUserState(userId), userId);
2153            }
2154            if ("android".equals(packageName)||"system".equals(packageName)) {
2155                return mAndroidApplication;
2156            }
2157            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2158                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2159            }
2160        }
2161        return null;
2162    }
2163
2164
2165    @Override
2166    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2167        mContext.enforceCallingOrSelfPermission(
2168                android.Manifest.permission.CLEAR_APP_CACHE, null);
2169        // Queue up an async operation since clearing cache may take a little while.
2170        mHandler.post(new Runnable() {
2171            public void run() {
2172                mHandler.removeCallbacks(this);
2173                int retCode = -1;
2174                synchronized (mInstallLock) {
2175                    retCode = mInstaller.freeCache(freeStorageSize);
2176                    if (retCode < 0) {
2177                        Slog.w(TAG, "Couldn't clear application caches");
2178                    }
2179                }
2180                if (observer != null) {
2181                    try {
2182                        observer.onRemoveCompleted(null, (retCode >= 0));
2183                    } catch (RemoteException e) {
2184                        Slog.w(TAG, "RemoveException when invoking call back");
2185                    }
2186                }
2187            }
2188        });
2189    }
2190
2191    @Override
2192    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2193        mContext.enforceCallingOrSelfPermission(
2194                android.Manifest.permission.CLEAR_APP_CACHE, null);
2195        // Queue up an async operation since clearing cache may take a little while.
2196        mHandler.post(new Runnable() {
2197            public void run() {
2198                mHandler.removeCallbacks(this);
2199                int retCode = -1;
2200                synchronized (mInstallLock) {
2201                    retCode = mInstaller.freeCache(freeStorageSize);
2202                    if (retCode < 0) {
2203                        Slog.w(TAG, "Couldn't clear application caches");
2204                    }
2205                }
2206                if(pi != null) {
2207                    try {
2208                        // Callback via pending intent
2209                        int code = (retCode >= 0) ? 1 : 0;
2210                        pi.sendIntent(null, code, null,
2211                                null, null);
2212                    } catch (SendIntentException e1) {
2213                        Slog.i(TAG, "Failed to send pending intent");
2214                    }
2215                }
2216            }
2217        });
2218    }
2219
2220    void freeStorage(long freeStorageSize) throws IOException {
2221        synchronized (mInstallLock) {
2222            if (mInstaller.freeCache(freeStorageSize) < 0) {
2223                throw new IOException("Failed to free enough space");
2224            }
2225        }
2226    }
2227
2228    @Override
2229    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2230        if (!sUserManager.exists(userId)) return null;
2231        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2232        synchronized (mPackages) {
2233            PackageParser.Activity a = mActivities.mActivities.get(component);
2234
2235            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2236            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2237                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2238                if (ps == null) return null;
2239                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2240                        userId);
2241            }
2242            if (mResolveComponentName.equals(component)) {
2243                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2244                        new PackageUserState(), userId);
2245            }
2246        }
2247        return null;
2248    }
2249
2250    @Override
2251    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2252            String resolvedType) {
2253        synchronized (mPackages) {
2254            PackageParser.Activity a = mActivities.mActivities.get(component);
2255            if (a == null) {
2256                return false;
2257            }
2258            for (int i=0; i<a.intents.size(); i++) {
2259                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2260                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2261                    return true;
2262                }
2263            }
2264            return false;
2265        }
2266    }
2267
2268    @Override
2269    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2270        if (!sUserManager.exists(userId)) return null;
2271        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2272        synchronized (mPackages) {
2273            PackageParser.Activity a = mReceivers.mActivities.get(component);
2274            if (DEBUG_PACKAGE_INFO) Log.v(
2275                TAG, "getReceiverInfo " + component + ": " + a);
2276            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2277                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2278                if (ps == null) return null;
2279                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2280                        userId);
2281            }
2282        }
2283        return null;
2284    }
2285
2286    @Override
2287    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2288        if (!sUserManager.exists(userId)) return null;
2289        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2290        synchronized (mPackages) {
2291            PackageParser.Service s = mServices.mServices.get(component);
2292            if (DEBUG_PACKAGE_INFO) Log.v(
2293                TAG, "getServiceInfo " + component + ": " + s);
2294            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2295                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2296                if (ps == null) return null;
2297                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2298                        userId);
2299            }
2300        }
2301        return null;
2302    }
2303
2304    @Override
2305    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2306        if (!sUserManager.exists(userId)) return null;
2307        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2308        synchronized (mPackages) {
2309            PackageParser.Provider p = mProviders.mProviders.get(component);
2310            if (DEBUG_PACKAGE_INFO) Log.v(
2311                TAG, "getProviderInfo " + component + ": " + p);
2312            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2313                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2314                if (ps == null) return null;
2315                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2316                        userId);
2317            }
2318        }
2319        return null;
2320    }
2321
2322    @Override
2323    public String[] getSystemSharedLibraryNames() {
2324        Set<String> libSet;
2325        synchronized (mPackages) {
2326            libSet = mSharedLibraries.keySet();
2327            int size = libSet.size();
2328            if (size > 0) {
2329                String[] libs = new String[size];
2330                libSet.toArray(libs);
2331                return libs;
2332            }
2333        }
2334        return null;
2335    }
2336
2337    /**
2338     * @hide
2339     */
2340    PackageParser.Package findSharedNonSystemLibrary(String libName) {
2341        synchronized (mPackages) {
2342            PackageManagerService.SharedLibraryEntry lib = mSharedLibraries.get(libName);
2343            if (lib != null && lib.apk != null) {
2344                return mPackages.get(lib.apk);
2345            }
2346        }
2347        return null;
2348    }
2349
2350    @Override
2351    public FeatureInfo[] getSystemAvailableFeatures() {
2352        Collection<FeatureInfo> featSet;
2353        synchronized (mPackages) {
2354            featSet = mAvailableFeatures.values();
2355            int size = featSet.size();
2356            if (size > 0) {
2357                FeatureInfo[] features = new FeatureInfo[size+1];
2358                featSet.toArray(features);
2359                FeatureInfo fi = new FeatureInfo();
2360                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2361                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2362                features[size] = fi;
2363                return features;
2364            }
2365        }
2366        return null;
2367    }
2368
2369    @Override
2370    public boolean hasSystemFeature(String name) {
2371        synchronized (mPackages) {
2372            return mAvailableFeatures.containsKey(name);
2373        }
2374    }
2375
2376    private void checkValidCaller(int uid, int userId) {
2377        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2378            return;
2379
2380        throw new SecurityException("Caller uid=" + uid
2381                + " is not privileged to communicate with user=" + userId);
2382    }
2383
2384    @Override
2385    public int checkPermission(String permName, String pkgName) {
2386        synchronized (mPackages) {
2387            PackageParser.Package p = mPackages.get(pkgName);
2388            if (p != null && p.mExtras != null) {
2389                PackageSetting ps = (PackageSetting)p.mExtras;
2390                if (ps.sharedUser != null) {
2391                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2392                        return PackageManager.PERMISSION_GRANTED;
2393                    }
2394                } else if (ps.grantedPermissions.contains(permName)) {
2395                    return PackageManager.PERMISSION_GRANTED;
2396                }
2397            }
2398        }
2399        return PackageManager.PERMISSION_DENIED;
2400    }
2401
2402    @Override
2403    public int checkUidPermission(String permName, int uid) {
2404        synchronized (mPackages) {
2405            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2406            if (obj != null) {
2407                GrantedPermissions gp = (GrantedPermissions)obj;
2408                if (gp.grantedPermissions.contains(permName)) {
2409                    return PackageManager.PERMISSION_GRANTED;
2410                }
2411            } else {
2412                ArraySet<String> perms = mSystemPermissions.get(uid);
2413                if (perms != null && perms.contains(permName)) {
2414                    return PackageManager.PERMISSION_GRANTED;
2415                }
2416            }
2417        }
2418        return PackageManager.PERMISSION_DENIED;
2419    }
2420
2421    /**
2422     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2423     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2424     * @param checkShell TODO(yamasani):
2425     * @param message the message to log on security exception
2426     */
2427    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2428            boolean checkShell, String message) {
2429        if (userId < 0) {
2430            throw new IllegalArgumentException("Invalid userId " + userId);
2431        }
2432        if (checkShell) {
2433            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2434        }
2435        if (userId == UserHandle.getUserId(callingUid)) return;
2436        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2437            if (requireFullPermission) {
2438                mContext.enforceCallingOrSelfPermission(
2439                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2440            } else {
2441                try {
2442                    mContext.enforceCallingOrSelfPermission(
2443                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2444                } catch (SecurityException se) {
2445                    mContext.enforceCallingOrSelfPermission(
2446                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2447                }
2448            }
2449        }
2450    }
2451
2452    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2453        if (callingUid == Process.SHELL_UID) {
2454            if (userHandle >= 0
2455                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2456                throw new SecurityException("Shell does not have permission to access user "
2457                        + userHandle);
2458            } else if (userHandle < 0) {
2459                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2460                        + Debug.getCallers(3));
2461            }
2462        }
2463    }
2464
2465    private BasePermission findPermissionTreeLP(String permName) {
2466        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2467            if (permName.startsWith(bp.name) &&
2468                    permName.length() > bp.name.length() &&
2469                    permName.charAt(bp.name.length()) == '.') {
2470                return bp;
2471            }
2472        }
2473        return null;
2474    }
2475
2476    private BasePermission checkPermissionTreeLP(String permName) {
2477        if (permName != null) {
2478            BasePermission bp = findPermissionTreeLP(permName);
2479            if (bp != null) {
2480                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2481                    return bp;
2482                }
2483                throw new SecurityException("Calling uid "
2484                        + Binder.getCallingUid()
2485                        + " is not allowed to add to permission tree "
2486                        + bp.name + " owned by uid " + bp.uid);
2487            }
2488        }
2489        throw new SecurityException("No permission tree found for " + permName);
2490    }
2491
2492    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2493        if (s1 == null) {
2494            return s2 == null;
2495        }
2496        if (s2 == null) {
2497            return false;
2498        }
2499        if (s1.getClass() != s2.getClass()) {
2500            return false;
2501        }
2502        return s1.equals(s2);
2503    }
2504
2505    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2506        if (pi1.icon != pi2.icon) return false;
2507        if (pi1.logo != pi2.logo) return false;
2508        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2509        if (!compareStrings(pi1.name, pi2.name)) return false;
2510        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2511        // We'll take care of setting this one.
2512        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2513        // These are not currently stored in settings.
2514        //if (!compareStrings(pi1.group, pi2.group)) return false;
2515        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2516        //if (pi1.labelRes != pi2.labelRes) return false;
2517        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2518        return true;
2519    }
2520
2521    int permissionInfoFootprint(PermissionInfo info) {
2522        int size = info.name.length();
2523        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2524        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2525        return size;
2526    }
2527
2528    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2529        int size = 0;
2530        for (BasePermission perm : mSettings.mPermissions.values()) {
2531            if (perm.uid == tree.uid) {
2532                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2533            }
2534        }
2535        return size;
2536    }
2537
2538    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2539        // We calculate the max size of permissions defined by this uid and throw
2540        // if that plus the size of 'info' would exceed our stated maximum.
2541        if (tree.uid != Process.SYSTEM_UID) {
2542            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2543            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2544                throw new SecurityException("Permission tree size cap exceeded");
2545            }
2546        }
2547    }
2548
2549    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2550        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2551            throw new SecurityException("Label must be specified in permission");
2552        }
2553        BasePermission tree = checkPermissionTreeLP(info.name);
2554        BasePermission bp = mSettings.mPermissions.get(info.name);
2555        boolean added = bp == null;
2556        boolean changed = true;
2557        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2558        if (added) {
2559            enforcePermissionCapLocked(info, tree);
2560            bp = new BasePermission(info.name, tree.sourcePackage,
2561                    BasePermission.TYPE_DYNAMIC);
2562        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2563            throw new SecurityException(
2564                    "Not allowed to modify non-dynamic permission "
2565                    + info.name);
2566        } else {
2567            if (bp.protectionLevel == fixedLevel
2568                    && bp.perm.owner.equals(tree.perm.owner)
2569                    && bp.uid == tree.uid
2570                    && comparePermissionInfos(bp.perm.info, info)) {
2571                changed = false;
2572            }
2573        }
2574        bp.protectionLevel = fixedLevel;
2575        info = new PermissionInfo(info);
2576        info.protectionLevel = fixedLevel;
2577        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2578        bp.perm.info.packageName = tree.perm.info.packageName;
2579        bp.uid = tree.uid;
2580        if (added) {
2581            mSettings.mPermissions.put(info.name, bp);
2582        }
2583        if (changed) {
2584            if (!async) {
2585                mSettings.writeLPr();
2586            } else {
2587                scheduleWriteSettingsLocked();
2588            }
2589        }
2590        return added;
2591    }
2592
2593    @Override
2594    public boolean addPermission(PermissionInfo info) {
2595        synchronized (mPackages) {
2596            return addPermissionLocked(info, false);
2597        }
2598    }
2599
2600    @Override
2601    public boolean addPermissionAsync(PermissionInfo info) {
2602        synchronized (mPackages) {
2603            return addPermissionLocked(info, true);
2604        }
2605    }
2606
2607    @Override
2608    public void removePermission(String name) {
2609        synchronized (mPackages) {
2610            checkPermissionTreeLP(name);
2611            BasePermission bp = mSettings.mPermissions.get(name);
2612            if (bp != null) {
2613                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2614                    throw new SecurityException(
2615                            "Not allowed to modify non-dynamic permission "
2616                            + name);
2617                }
2618                mSettings.mPermissions.remove(name);
2619                mSettings.writeLPr();
2620            }
2621        }
2622    }
2623
2624    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2625        int index = pkg.requestedPermissions.indexOf(bp.name);
2626        if (index == -1) {
2627            throw new SecurityException("Package " + pkg.packageName
2628                    + " has not requested permission " + bp.name);
2629        }
2630        boolean isNormal =
2631                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2632                        == PermissionInfo.PROTECTION_NORMAL);
2633        boolean isDangerous =
2634                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2635                        == PermissionInfo.PROTECTION_DANGEROUS);
2636        boolean isDevelopment =
2637                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2638
2639        if (!isNormal && !isDangerous && !isDevelopment) {
2640            throw new SecurityException("Permission " + bp.name
2641                    + " is not a changeable permission type");
2642        }
2643
2644        if (isNormal || isDangerous) {
2645            if (pkg.requestedPermissionsRequired.get(index)) {
2646                throw new SecurityException("Can't change " + bp.name
2647                        + ". It is required by the application");
2648            }
2649        }
2650    }
2651
2652    @Override
2653    public void grantPermission(String packageName, String permissionName) {
2654        mContext.enforceCallingOrSelfPermission(
2655                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2656        synchronized (mPackages) {
2657            final PackageParser.Package pkg = mPackages.get(packageName);
2658            if (pkg == null) {
2659                throw new IllegalArgumentException("Unknown package: " + packageName);
2660            }
2661            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2662            if (bp == null) {
2663                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2664            }
2665
2666            checkGrantRevokePermissions(pkg, bp);
2667
2668            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2669            if (ps == null) {
2670                return;
2671            }
2672            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2673            if (gp.grantedPermissions.add(permissionName)) {
2674                if (ps.haveGids) {
2675                    gp.gids = appendInts(gp.gids, bp.gids);
2676                }
2677                mSettings.writeLPr();
2678            }
2679        }
2680    }
2681
2682    @Override
2683    public void revokePermission(String packageName, String permissionName) {
2684        int changedAppId = -1;
2685
2686        synchronized (mPackages) {
2687            final PackageParser.Package pkg = mPackages.get(packageName);
2688            if (pkg == null) {
2689                throw new IllegalArgumentException("Unknown package: " + packageName);
2690            }
2691            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2692                mContext.enforceCallingOrSelfPermission(
2693                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2694            }
2695            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2696            if (bp == null) {
2697                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2698            }
2699
2700            checkGrantRevokePermissions(pkg, bp);
2701
2702            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2703            if (ps == null) {
2704                return;
2705            }
2706            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2707            if (gp.grantedPermissions.remove(permissionName)) {
2708                gp.grantedPermissions.remove(permissionName);
2709                if (ps.haveGids) {
2710                    gp.gids = removeInts(gp.gids, bp.gids);
2711                }
2712                mSettings.writeLPr();
2713                changedAppId = ps.appId;
2714            }
2715        }
2716
2717        if (changedAppId >= 0) {
2718            // We changed the perm on someone, kill its processes.
2719            IActivityManager am = ActivityManagerNative.getDefault();
2720            if (am != null) {
2721                final int callingUserId = UserHandle.getCallingUserId();
2722                final long ident = Binder.clearCallingIdentity();
2723                try {
2724                    //XXX we should only revoke for the calling user's app permissions,
2725                    // but for now we impact all users.
2726                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2727                    //        "revoke " + permissionName);
2728                    int[] users = sUserManager.getUserIds();
2729                    for (int user : users) {
2730                        am.killUid(UserHandle.getUid(user, changedAppId),
2731                                "revoke " + permissionName);
2732                    }
2733                } catch (RemoteException e) {
2734                } finally {
2735                    Binder.restoreCallingIdentity(ident);
2736                }
2737            }
2738        }
2739    }
2740
2741    @Override
2742    public boolean isProtectedBroadcast(String actionName) {
2743        synchronized (mPackages) {
2744            return mProtectedBroadcasts.contains(actionName);
2745        }
2746    }
2747
2748    @Override
2749    public int checkSignatures(String pkg1, String pkg2) {
2750        synchronized (mPackages) {
2751            final PackageParser.Package p1 = mPackages.get(pkg1);
2752            final PackageParser.Package p2 = mPackages.get(pkg2);
2753            if (p1 == null || p1.mExtras == null
2754                    || p2 == null || p2.mExtras == null) {
2755                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2756            }
2757            return compareSignatures(p1.mSignatures, p2.mSignatures);
2758        }
2759    }
2760
2761    @Override
2762    public int checkUidSignatures(int uid1, int uid2) {
2763        // Map to base uids.
2764        uid1 = UserHandle.getAppId(uid1);
2765        uid2 = UserHandle.getAppId(uid2);
2766        // reader
2767        synchronized (mPackages) {
2768            Signature[] s1;
2769            Signature[] s2;
2770            Object obj = mSettings.getUserIdLPr(uid1);
2771            if (obj != null) {
2772                if (obj instanceof SharedUserSetting) {
2773                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2774                } else if (obj instanceof PackageSetting) {
2775                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2776                } else {
2777                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2778                }
2779            } else {
2780                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2781            }
2782            obj = mSettings.getUserIdLPr(uid2);
2783            if (obj != null) {
2784                if (obj instanceof SharedUserSetting) {
2785                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2786                } else if (obj instanceof PackageSetting) {
2787                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2788                } else {
2789                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2790                }
2791            } else {
2792                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2793            }
2794            return compareSignatures(s1, s2);
2795        }
2796    }
2797
2798    /**
2799     * Compares two sets of signatures. Returns:
2800     * <br />
2801     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2802     * <br />
2803     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2804     * <br />
2805     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2806     * <br />
2807     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2808     * <br />
2809     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2810     */
2811    static int compareSignatures(Signature[] s1, Signature[] s2) {
2812        if (s1 == null) {
2813            return s2 == null
2814                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2815                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2816        }
2817
2818        if (s2 == null) {
2819            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2820        }
2821
2822        if (s1.length != s2.length) {
2823            return PackageManager.SIGNATURE_NO_MATCH;
2824        }
2825
2826        // Since both signature sets are of size 1, we can compare without HashSets.
2827        if (s1.length == 1) {
2828            return s1[0].equals(s2[0]) ?
2829                    PackageManager.SIGNATURE_MATCH :
2830                    PackageManager.SIGNATURE_NO_MATCH;
2831        }
2832
2833        ArraySet<Signature> set1 = new ArraySet<Signature>();
2834        for (Signature sig : s1) {
2835            set1.add(sig);
2836        }
2837        ArraySet<Signature> set2 = new ArraySet<Signature>();
2838        for (Signature sig : s2) {
2839            set2.add(sig);
2840        }
2841        // Make sure s2 contains all signatures in s1.
2842        if (set1.equals(set2)) {
2843            return PackageManager.SIGNATURE_MATCH;
2844        }
2845        return PackageManager.SIGNATURE_NO_MATCH;
2846    }
2847
2848    /**
2849     * If the database version for this type of package (internal storage or
2850     * external storage) is less than the version where package signatures
2851     * were updated, return true.
2852     */
2853    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2854        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2855                DatabaseVersion.SIGNATURE_END_ENTITY))
2856                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2857                        DatabaseVersion.SIGNATURE_END_ENTITY));
2858    }
2859
2860    /**
2861     * Used for backward compatibility to make sure any packages with
2862     * certificate chains get upgraded to the new style. {@code existingSigs}
2863     * will be in the old format (since they were stored on disk from before the
2864     * system upgrade) and {@code scannedSigs} will be in the newer format.
2865     */
2866    private int compareSignaturesCompat(PackageSignatures existingSigs,
2867            PackageParser.Package scannedPkg) {
2868        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2869            return PackageManager.SIGNATURE_NO_MATCH;
2870        }
2871
2872        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2873        for (Signature sig : existingSigs.mSignatures) {
2874            existingSet.add(sig);
2875        }
2876        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2877        for (Signature sig : scannedPkg.mSignatures) {
2878            try {
2879                Signature[] chainSignatures = sig.getChainSignatures();
2880                for (Signature chainSig : chainSignatures) {
2881                    scannedCompatSet.add(chainSig);
2882                }
2883            } catch (CertificateEncodingException e) {
2884                scannedCompatSet.add(sig);
2885            }
2886        }
2887        /*
2888         * Make sure the expanded scanned set contains all signatures in the
2889         * existing one.
2890         */
2891        if (scannedCompatSet.equals(existingSet)) {
2892            // Migrate the old signatures to the new scheme.
2893            existingSigs.assignSignatures(scannedPkg.mSignatures);
2894            // The new KeySets will be re-added later in the scanning process.
2895            synchronized (mPackages) {
2896                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2897            }
2898            return PackageManager.SIGNATURE_MATCH;
2899        }
2900        return PackageManager.SIGNATURE_NO_MATCH;
2901    }
2902
2903    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2904        if (isExternal(scannedPkg)) {
2905            return mSettings.isExternalDatabaseVersionOlderThan(
2906                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2907        } else {
2908            return mSettings.isInternalDatabaseVersionOlderThan(
2909                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2910        }
2911    }
2912
2913    private int compareSignaturesRecover(PackageSignatures existingSigs,
2914            PackageParser.Package scannedPkg) {
2915        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2916            return PackageManager.SIGNATURE_NO_MATCH;
2917        }
2918
2919        String msg = null;
2920        try {
2921            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2922                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2923                        + scannedPkg.packageName);
2924                return PackageManager.SIGNATURE_MATCH;
2925            }
2926        } catch (CertificateException e) {
2927            msg = e.getMessage();
2928        }
2929
2930        logCriticalInfo(Log.INFO,
2931                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2932        return PackageManager.SIGNATURE_NO_MATCH;
2933    }
2934
2935    @Override
2936    public String[] getPackagesForUid(int uid) {
2937        uid = UserHandle.getAppId(uid);
2938        // reader
2939        synchronized (mPackages) {
2940            Object obj = mSettings.getUserIdLPr(uid);
2941            if (obj instanceof SharedUserSetting) {
2942                final SharedUserSetting sus = (SharedUserSetting) obj;
2943                final int N = sus.packages.size();
2944                final String[] res = new String[N];
2945                final Iterator<PackageSetting> it = sus.packages.iterator();
2946                int i = 0;
2947                while (it.hasNext()) {
2948                    res[i++] = it.next().name;
2949                }
2950                return res;
2951            } else if (obj instanceof PackageSetting) {
2952                final PackageSetting ps = (PackageSetting) obj;
2953                return new String[] { ps.name };
2954            }
2955        }
2956        return null;
2957    }
2958
2959    @Override
2960    public String getNameForUid(int uid) {
2961        // reader
2962        synchronized (mPackages) {
2963            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2964            if (obj instanceof SharedUserSetting) {
2965                final SharedUserSetting sus = (SharedUserSetting) obj;
2966                return sus.name + ":" + sus.userId;
2967            } else if (obj instanceof PackageSetting) {
2968                final PackageSetting ps = (PackageSetting) obj;
2969                return ps.name;
2970            }
2971        }
2972        return null;
2973    }
2974
2975    @Override
2976    public int getUidForSharedUser(String sharedUserName) {
2977        if(sharedUserName == null) {
2978            return -1;
2979        }
2980        // reader
2981        synchronized (mPackages) {
2982            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, 0, false);
2983            if (suid == null) {
2984                return -1;
2985            }
2986            return suid.userId;
2987        }
2988    }
2989
2990    @Override
2991    public int getFlagsForUid(int uid) {
2992        synchronized (mPackages) {
2993            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2994            if (obj instanceof SharedUserSetting) {
2995                final SharedUserSetting sus = (SharedUserSetting) obj;
2996                return sus.pkgFlags;
2997            } else if (obj instanceof PackageSetting) {
2998                final PackageSetting ps = (PackageSetting) obj;
2999                return ps.pkgFlags;
3000            }
3001        }
3002        return 0;
3003    }
3004
3005    @Override
3006    public int getPrivateFlagsForUid(int uid) {
3007        synchronized (mPackages) {
3008            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
3009            if (obj instanceof SharedUserSetting) {
3010                final SharedUserSetting sus = (SharedUserSetting) obj;
3011                return sus.pkgPrivateFlags;
3012            } else if (obj instanceof PackageSetting) {
3013                final PackageSetting ps = (PackageSetting) obj;
3014                return ps.pkgPrivateFlags;
3015            }
3016        }
3017        return 0;
3018    }
3019
3020    @Override
3021    public boolean isUidPrivileged(int uid) {
3022        uid = UserHandle.getAppId(uid);
3023        // reader
3024        synchronized (mPackages) {
3025            Object obj = mSettings.getUserIdLPr(uid);
3026            if (obj instanceof SharedUserSetting) {
3027                final SharedUserSetting sus = (SharedUserSetting) obj;
3028                final Iterator<PackageSetting> it = sus.packages.iterator();
3029                while (it.hasNext()) {
3030                    if (it.next().isPrivileged()) {
3031                        return true;
3032                    }
3033                }
3034            } else if (obj instanceof PackageSetting) {
3035                final PackageSetting ps = (PackageSetting) obj;
3036                return ps.isPrivileged();
3037            }
3038        }
3039        return false;
3040    }
3041
3042    @Override
3043    public String[] getAppOpPermissionPackages(String permissionName) {
3044        synchronized (mPackages) {
3045            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3046            if (pkgs == null) {
3047                return null;
3048            }
3049            return pkgs.toArray(new String[pkgs.size()]);
3050        }
3051    }
3052
3053    @Override
3054    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3055            int flags, int userId) {
3056        if (!sUserManager.exists(userId)) return null;
3057        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3058        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3059        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3060    }
3061
3062    @Override
3063    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3064            IntentFilter filter, int match, ComponentName activity) {
3065        final int userId = UserHandle.getCallingUserId();
3066        if (DEBUG_PREFERRED) {
3067            Log.v(TAG, "setLastChosenActivity intent=" + intent
3068                + " resolvedType=" + resolvedType
3069                + " flags=" + flags
3070                + " filter=" + filter
3071                + " match=" + match
3072                + " activity=" + activity);
3073            filter.dump(new PrintStreamPrinter(System.out), "    ");
3074        }
3075        intent.setComponent(null);
3076        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3077        // Find any earlier preferred or last chosen entries and nuke them
3078        findPreferredActivity(intent, resolvedType,
3079                flags, query, 0, false, true, false, userId);
3080        // Add the new activity as the last chosen for this filter
3081        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3082                "Setting last chosen");
3083    }
3084
3085    @Override
3086    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3087        final int userId = UserHandle.getCallingUserId();
3088        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3089        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3090        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3091                false, false, false, userId);
3092    }
3093
3094    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3095            int flags, List<ResolveInfo> query, int userId) {
3096        if (query != null) {
3097            final int N = query.size();
3098            if (N == 1) {
3099                return query.get(0);
3100            } else if (N > 1) {
3101                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3102                // If there is more than one activity with the same priority,
3103                // then let the user decide between them.
3104                ResolveInfo r0 = query.get(0);
3105                ResolveInfo r1 = query.get(1);
3106                if (DEBUG_INTENT_MATCHING || debug) {
3107                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3108                            + r1.activityInfo.name + "=" + r1.priority);
3109                }
3110                // If the first activity has a higher priority, or a different
3111                // default, then it is always desireable to pick it.
3112                if (r0.priority != r1.priority
3113                        || r0.preferredOrder != r1.preferredOrder
3114                        || r0.isDefault != r1.isDefault) {
3115                    return query.get(0);
3116                }
3117                // If we have saved a preference for a preferred activity for
3118                // this Intent, use that.
3119                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3120                        flags, query, r0.priority, true, false, debug, userId);
3121                if (ri != null) {
3122                    return ri;
3123                }
3124                if (userId != 0) {
3125                    ri = new ResolveInfo(mResolveInfo);
3126                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3127                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3128                            ri.activityInfo.applicationInfo);
3129                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3130                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3131                    return ri;
3132                }
3133                return mResolveInfo;
3134            }
3135        }
3136        return null;
3137    }
3138
3139    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3140            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3141        final int N = query.size();
3142        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3143                .get(userId);
3144        // Get the list of persistent preferred activities that handle the intent
3145        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3146        List<PersistentPreferredActivity> pprefs = ppir != null
3147                ? ppir.queryIntent(intent, resolvedType,
3148                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3149                : null;
3150        if (pprefs != null && pprefs.size() > 0) {
3151            final int M = pprefs.size();
3152            for (int i=0; i<M; i++) {
3153                final PersistentPreferredActivity ppa = pprefs.get(i);
3154                if (DEBUG_PREFERRED || debug) {
3155                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3156                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3157                            + "\n  component=" + ppa.mComponent);
3158                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3159                }
3160                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3161                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3162                if (DEBUG_PREFERRED || debug) {
3163                    Slog.v(TAG, "Found persistent preferred activity:");
3164                    if (ai != null) {
3165                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3166                    } else {
3167                        Slog.v(TAG, "  null");
3168                    }
3169                }
3170                if (ai == null) {
3171                    // This previously registered persistent preferred activity
3172                    // component is no longer known. Ignore it and do NOT remove it.
3173                    continue;
3174                }
3175                for (int j=0; j<N; j++) {
3176                    final ResolveInfo ri = query.get(j);
3177                    if (!ri.activityInfo.applicationInfo.packageName
3178                            .equals(ai.applicationInfo.packageName)) {
3179                        continue;
3180                    }
3181                    if (!ri.activityInfo.name.equals(ai.name)) {
3182                        continue;
3183                    }
3184                    //  Found a persistent preference that can handle the intent.
3185                    if (DEBUG_PREFERRED || debug) {
3186                        Slog.v(TAG, "Returning persistent preferred activity: " +
3187                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3188                    }
3189                    return ri;
3190                }
3191            }
3192        }
3193        return null;
3194    }
3195
3196    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3197            List<ResolveInfo> query, int priority, boolean always,
3198            boolean removeMatches, boolean debug, int userId) {
3199        if (!sUserManager.exists(userId)) return null;
3200        // writer
3201        synchronized (mPackages) {
3202            if (intent.getSelector() != null) {
3203                intent = intent.getSelector();
3204            }
3205            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3206
3207            // Try to find a matching persistent preferred activity.
3208            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3209                    debug, userId);
3210
3211            // If a persistent preferred activity matched, use it.
3212            if (pri != null) {
3213                return pri;
3214            }
3215
3216            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3217            // Get the list of preferred activities that handle the intent
3218            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3219            List<PreferredActivity> prefs = pir != null
3220                    ? pir.queryIntent(intent, resolvedType,
3221                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3222                    : null;
3223            if (prefs != null && prefs.size() > 0) {
3224                boolean changed = false;
3225                try {
3226                    // First figure out how good the original match set is.
3227                    // We will only allow preferred activities that came
3228                    // from the same match quality.
3229                    int match = 0;
3230
3231                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3232
3233                    final int N = query.size();
3234                    for (int j=0; j<N; j++) {
3235                        final ResolveInfo ri = query.get(j);
3236                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3237                                + ": 0x" + Integer.toHexString(match));
3238                        if (ri.match > match) {
3239                            match = ri.match;
3240                        }
3241                    }
3242
3243                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3244                            + Integer.toHexString(match));
3245
3246                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3247                    final int M = prefs.size();
3248                    for (int i=0; i<M; i++) {
3249                        final PreferredActivity pa = prefs.get(i);
3250                        if (DEBUG_PREFERRED || debug) {
3251                            Slog.v(TAG, "Checking PreferredActivity ds="
3252                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3253                                    + "\n  component=" + pa.mPref.mComponent);
3254                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3255                        }
3256                        if (pa.mPref.mMatch != match) {
3257                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3258                                    + Integer.toHexString(pa.mPref.mMatch));
3259                            continue;
3260                        }
3261                        // If it's not an "always" type preferred activity and that's what we're
3262                        // looking for, skip it.
3263                        if (always && !pa.mPref.mAlways) {
3264                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3265                            continue;
3266                        }
3267                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3268                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3269                        if (DEBUG_PREFERRED || debug) {
3270                            Slog.v(TAG, "Found preferred activity:");
3271                            if (ai != null) {
3272                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3273                            } else {
3274                                Slog.v(TAG, "  null");
3275                            }
3276                        }
3277                        if (ai == null) {
3278                            // This previously registered preferred activity
3279                            // component is no longer known.  Most likely an update
3280                            // to the app was installed and in the new version this
3281                            // component no longer exists.  Clean it up by removing
3282                            // it from the preferred activities list, and skip it.
3283                            Slog.w(TAG, "Removing dangling preferred activity: "
3284                                    + pa.mPref.mComponent);
3285                            pir.removeFilter(pa);
3286                            changed = true;
3287                            continue;
3288                        }
3289                        for (int j=0; j<N; j++) {
3290                            final ResolveInfo ri = query.get(j);
3291                            if (!ri.activityInfo.applicationInfo.packageName
3292                                    .equals(ai.applicationInfo.packageName)) {
3293                                continue;
3294                            }
3295                            if (!ri.activityInfo.name.equals(ai.name)) {
3296                                continue;
3297                            }
3298
3299                            if (removeMatches) {
3300                                pir.removeFilter(pa);
3301                                changed = true;
3302                                if (DEBUG_PREFERRED) {
3303                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3304                                }
3305                                break;
3306                            }
3307
3308                            // Okay we found a previously set preferred or last chosen app.
3309                            // If the result set is different from when this
3310                            // was created, we need to clear it and re-ask the
3311                            // user their preference, if we're looking for an "always" type entry.
3312                            if (always && !pa.mPref.sameSet(query)) {
3313                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3314                                        + intent + " type " + resolvedType);
3315                                if (DEBUG_PREFERRED) {
3316                                    Slog.v(TAG, "Removing preferred activity since set changed "
3317                                            + pa.mPref.mComponent);
3318                                }
3319                                pir.removeFilter(pa);
3320                                // Re-add the filter as a "last chosen" entry (!always)
3321                                PreferredActivity lastChosen = new PreferredActivity(
3322                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3323                                pir.addFilter(lastChosen);
3324                                changed = true;
3325                                return null;
3326                            }
3327
3328                            // Yay! Either the set matched or we're looking for the last chosen
3329                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3330                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3331                            return ri;
3332                        }
3333                    }
3334                } finally {
3335                    if (changed) {
3336                        if (DEBUG_PREFERRED) {
3337                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3338                        }
3339                        scheduleWritePackageRestrictionsLocked(userId);
3340                    }
3341                }
3342            }
3343        }
3344        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3345        return null;
3346    }
3347
3348    /*
3349     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3350     */
3351    @Override
3352    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3353            int targetUserId) {
3354        mContext.enforceCallingOrSelfPermission(
3355                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3356        List<CrossProfileIntentFilter> matches =
3357                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3358        if (matches != null) {
3359            int size = matches.size();
3360            for (int i = 0; i < size; i++) {
3361                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3362            }
3363        }
3364        return false;
3365    }
3366
3367    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3368            String resolvedType, int userId) {
3369        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3370        if (resolver != null) {
3371            return resolver.queryIntent(intent, resolvedType, false, userId);
3372        }
3373        return null;
3374    }
3375
3376    @Override
3377    public List<ResolveInfo> queryIntentActivities(Intent intent,
3378            String resolvedType, int flags, int userId) {
3379        if (!sUserManager.exists(userId)) return Collections.emptyList();
3380        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3381        ComponentName comp = intent.getComponent();
3382        if (comp == null) {
3383            if (intent.getSelector() != null) {
3384                intent = intent.getSelector();
3385                comp = intent.getComponent();
3386            }
3387        }
3388
3389        if (comp != null) {
3390            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3391            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3392            if (ai != null) {
3393                final ResolveInfo ri = new ResolveInfo();
3394                ri.activityInfo = ai;
3395                list.add(ri);
3396            }
3397            return list;
3398        }
3399
3400        // reader
3401        synchronized (mPackages) {
3402            final String pkgName = intent.getPackage();
3403            if (pkgName == null) {
3404                List<CrossProfileIntentFilter> matchingFilters =
3405                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3406                // Check for results that need to skip the current profile.
3407                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3408                        resolvedType, flags, userId);
3409                if (resolveInfo != null) {
3410                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3411                    result.add(resolveInfo);
3412                    return result;
3413                }
3414                // Check for cross profile results.
3415                resolveInfo = queryCrossProfileIntents(
3416                        matchingFilters, intent, resolvedType, flags, userId);
3417
3418                // Check for results in the current profile.
3419                List<ResolveInfo> result = mActivities.queryIntent(
3420                        intent, resolvedType, flags, userId);
3421                if (resolveInfo != null) {
3422                    result.add(resolveInfo);
3423                    Collections.sort(result, mResolvePrioritySorter);
3424                }
3425                return result;
3426            }
3427            final PackageParser.Package pkg = mPackages.get(pkgName);
3428            if (pkg != null) {
3429                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3430                        pkg.activities, userId);
3431            }
3432            return new ArrayList<ResolveInfo>();
3433        }
3434    }
3435
3436    private ResolveInfo querySkipCurrentProfileIntents(
3437            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3438            int flags, int sourceUserId) {
3439        if (matchingFilters != null) {
3440            int size = matchingFilters.size();
3441            for (int i = 0; i < size; i ++) {
3442                CrossProfileIntentFilter filter = matchingFilters.get(i);
3443                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3444                    // Checking if there are activities in the target user that can handle the
3445                    // intent.
3446                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3447                            flags, sourceUserId);
3448                    if (resolveInfo != null) {
3449                        return resolveInfo;
3450                    }
3451                }
3452            }
3453        }
3454        return null;
3455    }
3456
3457    // Return matching ResolveInfo if any for skip current profile intent filters.
3458    private ResolveInfo queryCrossProfileIntents(
3459            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3460            int flags, int sourceUserId) {
3461        if (matchingFilters != null) {
3462            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3463            // match the same intent. For performance reasons, it is better not to
3464            // run queryIntent twice for the same userId
3465            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3466            int size = matchingFilters.size();
3467            for (int i = 0; i < size; i++) {
3468                CrossProfileIntentFilter filter = matchingFilters.get(i);
3469                int targetUserId = filter.getTargetUserId();
3470                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3471                        && !alreadyTriedUserIds.get(targetUserId)) {
3472                    // Checking if there are activities in the target user that can handle the
3473                    // intent.
3474                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3475                            flags, sourceUserId);
3476                    if (resolveInfo != null) return resolveInfo;
3477                    alreadyTriedUserIds.put(targetUserId, true);
3478                }
3479            }
3480        }
3481        return null;
3482    }
3483
3484    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3485            String resolvedType, int flags, int sourceUserId) {
3486        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3487                resolvedType, flags, filter.getTargetUserId());
3488        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3489            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3490        }
3491        return null;
3492    }
3493
3494    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3495            int sourceUserId, int targetUserId) {
3496        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3497        String className;
3498        if (targetUserId == UserHandle.USER_OWNER) {
3499            className = FORWARD_INTENT_TO_USER_OWNER;
3500        } else {
3501            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3502        }
3503        ComponentName forwardingActivityComponentName = new ComponentName(
3504                mAndroidApplication.packageName, className);
3505        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3506                sourceUserId);
3507        if (targetUserId == UserHandle.USER_OWNER) {
3508            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3509            forwardingResolveInfo.noResourceId = true;
3510        }
3511        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3512        forwardingResolveInfo.priority = 0;
3513        forwardingResolveInfo.preferredOrder = 0;
3514        forwardingResolveInfo.match = 0;
3515        forwardingResolveInfo.isDefault = true;
3516        forwardingResolveInfo.filter = filter;
3517        forwardingResolveInfo.targetUserId = targetUserId;
3518        return forwardingResolveInfo;
3519    }
3520
3521    @Override
3522    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3523            Intent[] specifics, String[] specificTypes, Intent intent,
3524            String resolvedType, int flags, int userId) {
3525        if (!sUserManager.exists(userId)) return Collections.emptyList();
3526        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3527                false, "query intent activity options");
3528        final String resultsAction = intent.getAction();
3529
3530        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3531                | PackageManager.GET_RESOLVED_FILTER, userId);
3532
3533        if (DEBUG_INTENT_MATCHING) {
3534            Log.v(TAG, "Query " + intent + ": " + results);
3535        }
3536
3537        int specificsPos = 0;
3538        int N;
3539
3540        // todo: note that the algorithm used here is O(N^2).  This
3541        // isn't a problem in our current environment, but if we start running
3542        // into situations where we have more than 5 or 10 matches then this
3543        // should probably be changed to something smarter...
3544
3545        // First we go through and resolve each of the specific items
3546        // that were supplied, taking care of removing any corresponding
3547        // duplicate items in the generic resolve list.
3548        if (specifics != null) {
3549            for (int i=0; i<specifics.length; i++) {
3550                final Intent sintent = specifics[i];
3551                if (sintent == null) {
3552                    continue;
3553                }
3554
3555                if (DEBUG_INTENT_MATCHING) {
3556                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3557                }
3558
3559                String action = sintent.getAction();
3560                if (resultsAction != null && resultsAction.equals(action)) {
3561                    // If this action was explicitly requested, then don't
3562                    // remove things that have it.
3563                    action = null;
3564                }
3565
3566                ResolveInfo ri = null;
3567                ActivityInfo ai = null;
3568
3569                ComponentName comp = sintent.getComponent();
3570                if (comp == null) {
3571                    ri = resolveIntent(
3572                        sintent,
3573                        specificTypes != null ? specificTypes[i] : null,
3574                            flags, userId);
3575                    if (ri == null) {
3576                        continue;
3577                    }
3578                    if (ri == mResolveInfo) {
3579                        // ACK!  Must do something better with this.
3580                    }
3581                    ai = ri.activityInfo;
3582                    comp = new ComponentName(ai.applicationInfo.packageName,
3583                            ai.name);
3584                } else {
3585                    ai = getActivityInfo(comp, flags, userId);
3586                    if (ai == null) {
3587                        continue;
3588                    }
3589                }
3590
3591                // Look for any generic query activities that are duplicates
3592                // of this specific one, and remove them from the results.
3593                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3594                N = results.size();
3595                int j;
3596                for (j=specificsPos; j<N; j++) {
3597                    ResolveInfo sri = results.get(j);
3598                    if ((sri.activityInfo.name.equals(comp.getClassName())
3599                            && sri.activityInfo.applicationInfo.packageName.equals(
3600                                    comp.getPackageName()))
3601                        || (action != null && sri.filter.matchAction(action))) {
3602                        results.remove(j);
3603                        if (DEBUG_INTENT_MATCHING) Log.v(
3604                            TAG, "Removing duplicate item from " + j
3605                            + " due to specific " + specificsPos);
3606                        if (ri == null) {
3607                            ri = sri;
3608                        }
3609                        j--;
3610                        N--;
3611                    }
3612                }
3613
3614                // Add this specific item to its proper place.
3615                if (ri == null) {
3616                    ri = new ResolveInfo();
3617                    ri.activityInfo = ai;
3618                }
3619                results.add(specificsPos, ri);
3620                ri.specificIndex = i;
3621                specificsPos++;
3622            }
3623        }
3624
3625        // Now we go through the remaining generic results and remove any
3626        // duplicate actions that are found here.
3627        N = results.size();
3628        for (int i=specificsPos; i<N-1; i++) {
3629            final ResolveInfo rii = results.get(i);
3630            if (rii.filter == null) {
3631                continue;
3632            }
3633
3634            // Iterate over all of the actions of this result's intent
3635            // filter...  typically this should be just one.
3636            final Iterator<String> it = rii.filter.actionsIterator();
3637            if (it == null) {
3638                continue;
3639            }
3640            while (it.hasNext()) {
3641                final String action = it.next();
3642                if (resultsAction != null && resultsAction.equals(action)) {
3643                    // If this action was explicitly requested, then don't
3644                    // remove things that have it.
3645                    continue;
3646                }
3647                for (int j=i+1; j<N; j++) {
3648                    final ResolveInfo rij = results.get(j);
3649                    if (rij.filter != null && rij.filter.hasAction(action)) {
3650                        results.remove(j);
3651                        if (DEBUG_INTENT_MATCHING) Log.v(
3652                            TAG, "Removing duplicate item from " + j
3653                            + " due to action " + action + " at " + i);
3654                        j--;
3655                        N--;
3656                    }
3657                }
3658            }
3659
3660            // If the caller didn't request filter information, drop it now
3661            // so we don't have to marshall/unmarshall it.
3662            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3663                rii.filter = null;
3664            }
3665        }
3666
3667        // Filter out the caller activity if so requested.
3668        if (caller != null) {
3669            N = results.size();
3670            for (int i=0; i<N; i++) {
3671                ActivityInfo ainfo = results.get(i).activityInfo;
3672                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3673                        && caller.getClassName().equals(ainfo.name)) {
3674                    results.remove(i);
3675                    break;
3676                }
3677            }
3678        }
3679
3680        // If the caller didn't request filter information,
3681        // drop them now so we don't have to
3682        // marshall/unmarshall it.
3683        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3684            N = results.size();
3685            for (int i=0; i<N; i++) {
3686                results.get(i).filter = null;
3687            }
3688        }
3689
3690        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3691        return results;
3692    }
3693
3694    @Override
3695    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3696            int userId) {
3697        if (!sUserManager.exists(userId)) return Collections.emptyList();
3698        ComponentName comp = intent.getComponent();
3699        if (comp == null) {
3700            if (intent.getSelector() != null) {
3701                intent = intent.getSelector();
3702                comp = intent.getComponent();
3703            }
3704        }
3705        if (comp != null) {
3706            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3707            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3708            if (ai != null) {
3709                ResolveInfo ri = new ResolveInfo();
3710                ri.activityInfo = ai;
3711                list.add(ri);
3712            }
3713            return list;
3714        }
3715
3716        // reader
3717        synchronized (mPackages) {
3718            String pkgName = intent.getPackage();
3719            if (pkgName == null) {
3720                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3721            }
3722            final PackageParser.Package pkg = mPackages.get(pkgName);
3723            if (pkg != null) {
3724                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3725                        userId);
3726            }
3727            return null;
3728        }
3729    }
3730
3731    @Override
3732    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3733        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3734        if (!sUserManager.exists(userId)) return null;
3735        if (query != null) {
3736            if (query.size() >= 1) {
3737                // If there is more than one service with the same priority,
3738                // just arbitrarily pick the first one.
3739                return query.get(0);
3740            }
3741        }
3742        return null;
3743    }
3744
3745    @Override
3746    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3747            int userId) {
3748        if (!sUserManager.exists(userId)) return Collections.emptyList();
3749        ComponentName comp = intent.getComponent();
3750        if (comp == null) {
3751            if (intent.getSelector() != null) {
3752                intent = intent.getSelector();
3753                comp = intent.getComponent();
3754            }
3755        }
3756        if (comp != null) {
3757            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3758            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3759            if (si != null) {
3760                final ResolveInfo ri = new ResolveInfo();
3761                ri.serviceInfo = si;
3762                list.add(ri);
3763            }
3764            return list;
3765        }
3766
3767        // reader
3768        synchronized (mPackages) {
3769            String pkgName = intent.getPackage();
3770            if (pkgName == null) {
3771                return mServices.queryIntent(intent, resolvedType, flags, userId);
3772            }
3773            final PackageParser.Package pkg = mPackages.get(pkgName);
3774            if (pkg != null) {
3775                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3776                        userId);
3777            }
3778            return null;
3779        }
3780    }
3781
3782    @Override
3783    public List<ResolveInfo> queryIntentContentProviders(
3784            Intent intent, String resolvedType, int flags, int userId) {
3785        if (!sUserManager.exists(userId)) return Collections.emptyList();
3786        ComponentName comp = intent.getComponent();
3787        if (comp == null) {
3788            if (intent.getSelector() != null) {
3789                intent = intent.getSelector();
3790                comp = intent.getComponent();
3791            }
3792        }
3793        if (comp != null) {
3794            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3795            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3796            if (pi != null) {
3797                final ResolveInfo ri = new ResolveInfo();
3798                ri.providerInfo = pi;
3799                list.add(ri);
3800            }
3801            return list;
3802        }
3803
3804        // reader
3805        synchronized (mPackages) {
3806            String pkgName = intent.getPackage();
3807            if (pkgName == null) {
3808                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3809            }
3810            final PackageParser.Package pkg = mPackages.get(pkgName);
3811            if (pkg != null) {
3812                return mProviders.queryIntentForPackage(
3813                        intent, resolvedType, flags, pkg.providers, userId);
3814            }
3815            return null;
3816        }
3817    }
3818
3819    @Override
3820    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3821        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3822
3823        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3824
3825        // writer
3826        synchronized (mPackages) {
3827            ArrayList<PackageInfo> list;
3828            if (listUninstalled) {
3829                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3830                for (PackageSetting ps : mSettings.mPackages.values()) {
3831                    PackageInfo pi;
3832                    if (ps.pkg != null) {
3833                        pi = generatePackageInfo(ps.pkg, flags, userId);
3834                    } else {
3835                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3836                    }
3837                    if (pi != null) {
3838                        list.add(pi);
3839                    }
3840                }
3841            } else {
3842                list = new ArrayList<PackageInfo>(mPackages.size());
3843                for (PackageParser.Package p : mPackages.values()) {
3844                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3845                    if (pi != null) {
3846                        list.add(pi);
3847                    }
3848                }
3849            }
3850
3851            return new ParceledListSlice<PackageInfo>(list);
3852        }
3853    }
3854
3855    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3856            String[] permissions, boolean[] tmp, int flags, int userId) {
3857        int numMatch = 0;
3858        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3859        for (int i=0; i<permissions.length; i++) {
3860            if (gp.grantedPermissions.contains(permissions[i])) {
3861                tmp[i] = true;
3862                numMatch++;
3863            } else {
3864                tmp[i] = false;
3865            }
3866        }
3867        if (numMatch == 0) {
3868            return;
3869        }
3870        PackageInfo pi;
3871        if (ps.pkg != null) {
3872            pi = generatePackageInfo(ps.pkg, flags, userId);
3873        } else {
3874            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3875        }
3876        // The above might return null in cases of uninstalled apps or install-state
3877        // skew across users/profiles.
3878        if (pi != null) {
3879            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3880                if (numMatch == permissions.length) {
3881                    pi.requestedPermissions = permissions;
3882                } else {
3883                    pi.requestedPermissions = new String[numMatch];
3884                    numMatch = 0;
3885                    for (int i=0; i<permissions.length; i++) {
3886                        if (tmp[i]) {
3887                            pi.requestedPermissions[numMatch] = permissions[i];
3888                            numMatch++;
3889                        }
3890                    }
3891                }
3892            }
3893            list.add(pi);
3894        }
3895    }
3896
3897    @Override
3898    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3899            String[] permissions, int flags, int userId) {
3900        if (!sUserManager.exists(userId)) return null;
3901        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3902
3903        // writer
3904        synchronized (mPackages) {
3905            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3906            boolean[] tmpBools = new boolean[permissions.length];
3907            if (listUninstalled) {
3908                for (PackageSetting ps : mSettings.mPackages.values()) {
3909                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3910                }
3911            } else {
3912                for (PackageParser.Package pkg : mPackages.values()) {
3913                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3914                    if (ps != null) {
3915                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3916                                userId);
3917                    }
3918                }
3919            }
3920
3921            return new ParceledListSlice<PackageInfo>(list);
3922        }
3923    }
3924
3925    @Override
3926    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3927        if (!sUserManager.exists(userId)) return null;
3928        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3929
3930        // writer
3931        synchronized (mPackages) {
3932            ArrayList<ApplicationInfo> list;
3933            if (listUninstalled) {
3934                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3935                for (PackageSetting ps : mSettings.mPackages.values()) {
3936                    ApplicationInfo ai;
3937                    if (ps.pkg != null) {
3938                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3939                                ps.readUserState(userId), userId);
3940                    } else {
3941                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3942                    }
3943                    if (ai != null) {
3944                        list.add(ai);
3945                    }
3946                }
3947            } else {
3948                list = new ArrayList<ApplicationInfo>(mPackages.size());
3949                for (PackageParser.Package p : mPackages.values()) {
3950                    if (p.mExtras != null) {
3951                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3952                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3953                        if (ai != null) {
3954                            list.add(ai);
3955                        }
3956                    }
3957                }
3958            }
3959
3960            return new ParceledListSlice<ApplicationInfo>(list);
3961        }
3962    }
3963
3964    public List<ApplicationInfo> getPersistentApplications(int flags) {
3965        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3966
3967        // reader
3968        synchronized (mPackages) {
3969            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3970            final int userId = UserHandle.getCallingUserId();
3971            while (i.hasNext()) {
3972                final PackageParser.Package p = i.next();
3973                if (p.applicationInfo != null
3974                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3975                        && (!mSafeMode || isSystemApp(p))) {
3976                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3977                    if (ps != null) {
3978                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3979                                ps.readUserState(userId), userId);
3980                        if (ai != null) {
3981                            finalList.add(ai);
3982                        }
3983                    }
3984                }
3985            }
3986        }
3987
3988        return finalList;
3989    }
3990
3991    @Override
3992    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3993        if (!sUserManager.exists(userId)) return null;
3994        // reader
3995        synchronized (mPackages) {
3996            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3997            PackageSetting ps = provider != null
3998                    ? mSettings.mPackages.get(provider.owner.packageName)
3999                    : null;
4000            return ps != null
4001                    && mSettings.isEnabledLPr(provider.info, flags, userId)
4002                    && (!mSafeMode || (provider.info.applicationInfo.flags
4003                            &ApplicationInfo.FLAG_SYSTEM) != 0)
4004                    ? PackageParser.generateProviderInfo(provider, flags,
4005                            ps.readUserState(userId), userId)
4006                    : null;
4007        }
4008    }
4009
4010    /**
4011     * @deprecated
4012     */
4013    @Deprecated
4014    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
4015        // reader
4016        synchronized (mPackages) {
4017            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
4018                    .entrySet().iterator();
4019            final int userId = UserHandle.getCallingUserId();
4020            while (i.hasNext()) {
4021                Map.Entry<String, PackageParser.Provider> entry = i.next();
4022                PackageParser.Provider p = entry.getValue();
4023                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4024
4025                if (ps != null && p.syncable
4026                        && (!mSafeMode || (p.info.applicationInfo.flags
4027                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
4028                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
4029                            ps.readUserState(userId), userId);
4030                    if (info != null) {
4031                        outNames.add(entry.getKey());
4032                        outInfo.add(info);
4033                    }
4034                }
4035            }
4036        }
4037    }
4038
4039    @Override
4040    public List<ProviderInfo> queryContentProviders(String processName,
4041            int uid, int flags) {
4042        ArrayList<ProviderInfo> finalList = null;
4043        // reader
4044        synchronized (mPackages) {
4045            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4046            final int userId = processName != null ?
4047                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4048            while (i.hasNext()) {
4049                final PackageParser.Provider p = i.next();
4050                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4051                if (ps != null && p.info.authority != null
4052                        && (processName == null
4053                                || (p.info.processName.equals(processName)
4054                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4055                        && mSettings.isEnabledLPr(p.info, flags, userId)
4056                        && (!mSafeMode
4057                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4058                    if (finalList == null) {
4059                        finalList = new ArrayList<ProviderInfo>(3);
4060                    }
4061                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4062                            ps.readUserState(userId), userId);
4063                    if (info != null) {
4064                        finalList.add(info);
4065                    }
4066                }
4067            }
4068        }
4069
4070        if (finalList != null) {
4071            Collections.sort(finalList, mProviderInitOrderSorter);
4072        }
4073
4074        return finalList;
4075    }
4076
4077    @Override
4078    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4079            int flags) {
4080        // reader
4081        synchronized (mPackages) {
4082            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4083            return PackageParser.generateInstrumentationInfo(i, flags);
4084        }
4085    }
4086
4087    @Override
4088    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4089            int flags) {
4090        ArrayList<InstrumentationInfo> finalList =
4091            new ArrayList<InstrumentationInfo>();
4092
4093        // reader
4094        synchronized (mPackages) {
4095            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4096            while (i.hasNext()) {
4097                final PackageParser.Instrumentation p = i.next();
4098                if (targetPackage == null
4099                        || targetPackage.equals(p.info.targetPackage)) {
4100                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4101                            flags);
4102                    if (ii != null) {
4103                        finalList.add(ii);
4104                    }
4105                }
4106            }
4107        }
4108
4109        return finalList;
4110    }
4111
4112    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4113        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4114        if (overlays == null) {
4115            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4116            return;
4117        }
4118        for (PackageParser.Package opkg : overlays.values()) {
4119            // Not much to do if idmap fails: we already logged the error
4120            // and we certainly don't want to abort installation of pkg simply
4121            // because an overlay didn't fit properly. For these reasons,
4122            // ignore the return value of createIdmapForPackagePairLI.
4123            createIdmapForPackagePairLI(pkg, opkg);
4124        }
4125    }
4126
4127    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4128            PackageParser.Package opkg) {
4129        if (!opkg.mTrustedOverlay) {
4130            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4131                    opkg.baseCodePath + ": overlay not trusted");
4132            return false;
4133        }
4134        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4135        if (overlaySet == null) {
4136            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4137                    opkg.baseCodePath + " but target package has no known overlays");
4138            return false;
4139        }
4140        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4141        // TODO: generate idmap for split APKs
4142        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4143            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4144                    + opkg.baseCodePath);
4145            return false;
4146        }
4147        PackageParser.Package[] overlayArray =
4148            overlaySet.values().toArray(new PackageParser.Package[0]);
4149        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4150            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4151                return p1.mOverlayPriority - p2.mOverlayPriority;
4152            }
4153        };
4154        Arrays.sort(overlayArray, cmp);
4155
4156        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4157        int i = 0;
4158        for (PackageParser.Package p : overlayArray) {
4159            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4160        }
4161        return true;
4162    }
4163
4164    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4165        final File[] files = dir.listFiles();
4166        if (ArrayUtils.isEmpty(files)) {
4167            Log.d(TAG, "No files in app dir " + dir);
4168            return;
4169        }
4170
4171        if (DEBUG_PACKAGE_SCANNING) {
4172            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4173                    + " flags=0x" + Integer.toHexString(parseFlags));
4174        }
4175
4176        for (File file : files) {
4177            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4178                    && !PackageInstallerService.isStageName(file.getName());
4179            if (!isPackage) {
4180                // Ignore entries which are not packages
4181                continue;
4182            }
4183            try {
4184                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4185                        scanFlags, currentTime, null);
4186            } catch (PackageManagerException e) {
4187                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4188
4189                // Delete invalid userdata apps
4190                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4191                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4192                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4193                    if (file.isDirectory()) {
4194                        FileUtils.deleteContents(file);
4195                    }
4196                    file.delete();
4197                }
4198            }
4199        }
4200    }
4201
4202    private static File getSettingsProblemFile() {
4203        File dataDir = Environment.getDataDirectory();
4204        File systemDir = new File(dataDir, "system");
4205        File fname = new File(systemDir, "uiderrors.txt");
4206        return fname;
4207    }
4208
4209    static void reportSettingsProblem(int priority, String msg) {
4210        logCriticalInfo(priority, msg);
4211    }
4212
4213    static void logCriticalInfo(int priority, String msg) {
4214        Slog.println(priority, TAG, msg);
4215        EventLogTags.writePmCriticalInfo(msg);
4216        try {
4217            File fname = getSettingsProblemFile();
4218            FileOutputStream out = new FileOutputStream(fname, true);
4219            PrintWriter pw = new FastPrintWriter(out);
4220            SimpleDateFormat formatter = new SimpleDateFormat();
4221            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4222            pw.println(dateString + ": " + msg);
4223            pw.close();
4224            FileUtils.setPermissions(
4225                    fname.toString(),
4226                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4227                    -1, -1);
4228        } catch (java.io.IOException e) {
4229        }
4230    }
4231
4232    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4233            PackageParser.Package pkg, File srcFile, int parseFlags)
4234            throws PackageManagerException {
4235        if (ps != null
4236                && ps.codePath.equals(srcFile)
4237                && ps.timeStamp == srcFile.lastModified()
4238                && !isCompatSignatureUpdateNeeded(pkg)
4239                && !isRecoverSignatureUpdateNeeded(pkg)) {
4240            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4241            if (ps.signatures.mSignatures != null
4242                    && ps.signatures.mSignatures.length != 0
4243                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4244                // Optimization: reuse the existing cached certificates
4245                // if the package appears to be unchanged.
4246                pkg.mSignatures = ps.signatures.mSignatures;
4247                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4248                synchronized (mPackages) {
4249                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4250                }
4251                return;
4252            }
4253
4254            Slog.w(TAG, "PackageSetting for " + ps.name
4255                    + " is missing signatures.  Collecting certs again to recover them.");
4256        } else {
4257            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4258        }
4259
4260        try {
4261            pp.collectCertificates(pkg, parseFlags);
4262            pp.collectManifestDigest(pkg);
4263        } catch (PackageParserException e) {
4264            throw PackageManagerException.from(e);
4265        }
4266    }
4267
4268    /*
4269     *  Scan a package and return the newly parsed package.
4270     *  Returns null in case of errors and the error code is stored in mLastScanError
4271     */
4272    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4273            long currentTime, UserHandle user) throws PackageManagerException {
4274        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4275        parseFlags |= mDefParseFlags;
4276        PackageParser pp = new PackageParser();
4277        pp.setSeparateProcesses(mSeparateProcesses);
4278        pp.setOnlyCoreApps(mOnlyCore);
4279        pp.setDisplayMetrics(mMetrics);
4280
4281        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4282            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4283        }
4284
4285        final PackageParser.Package pkg;
4286        try {
4287            pkg = pp.parsePackage(scanFile, parseFlags);
4288        } catch (PackageParserException e) {
4289            throw PackageManagerException.from(e);
4290        }
4291
4292        PackageSetting ps = null;
4293        PackageSetting updatedPkg;
4294        // reader
4295        synchronized (mPackages) {
4296            // Look to see if we already know about this package.
4297            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4298            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4299                // This package has been renamed to its original name.  Let's
4300                // use that.
4301                ps = mSettings.peekPackageLPr(oldName);
4302            }
4303            // If there was no original package, see one for the real package name.
4304            if (ps == null) {
4305                ps = mSettings.peekPackageLPr(pkg.packageName);
4306            }
4307            // Check to see if this package could be hiding/updating a system
4308            // package.  Must look for it either under the original or real
4309            // package name depending on our state.
4310            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4311            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4312        }
4313        boolean updatedPkgBetter = false;
4314        // First check if this is a system package that may involve an update
4315        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4316            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4317            // it needs to drop FLAG_PRIVILEGED.
4318            if (locationIsPrivileged(scanFile)) {
4319                updatedPkg.pkgPrivateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4320            } else {
4321                updatedPkg.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4322            }
4323
4324            if (ps != null && !ps.codePath.equals(scanFile)) {
4325                // The path has changed from what was last scanned...  check the
4326                // version of the new path against what we have stored to determine
4327                // what to do.
4328                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4329                if (pkg.mVersionCode <= ps.versionCode) {
4330                    // The system package has been updated and the code path does not match
4331                    // Ignore entry. Skip it.
4332                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4333                            + " ignored: updated version " + ps.versionCode
4334                            + " better than this " + pkg.mVersionCode);
4335                    if (!updatedPkg.codePath.equals(scanFile)) {
4336                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4337                                + ps.name + " changing from " + updatedPkg.codePathString
4338                                + " to " + scanFile);
4339                        updatedPkg.codePath = scanFile;
4340                        updatedPkg.codePathString = scanFile.toString();
4341                        updatedPkg.resourcePath = scanFile;
4342                        updatedPkg.resourcePathString = scanFile.toString();
4343                    }
4344                    updatedPkg.pkg = pkg;
4345                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4346                } else {
4347                    // The current app on the system partition is better than
4348                    // what we have updated to on the data partition; switch
4349                    // back to the system partition version.
4350                    // At this point, its safely assumed that package installation for
4351                    // apps in system partition will go through. If not there won't be a working
4352                    // version of the app
4353                    // writer
4354                    synchronized (mPackages) {
4355                        // Just remove the loaded entries from package lists.
4356                        mPackages.remove(ps.name);
4357                    }
4358
4359                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4360                            + " reverting from " + ps.codePathString
4361                            + ": new version " + pkg.mVersionCode
4362                            + " better than installed " + ps.versionCode);
4363
4364                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4365                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4366                            getAppDexInstructionSets(ps));
4367                    synchronized (mInstallLock) {
4368                        args.cleanUpResourcesLI();
4369                    }
4370                    synchronized (mPackages) {
4371                        mSettings.enableSystemPackageLPw(ps.name);
4372                    }
4373                    updatedPkgBetter = true;
4374                }
4375            }
4376        }
4377
4378        if (updatedPkg != null) {
4379            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4380            // initially
4381            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4382
4383            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4384            // flag set initially
4385            if ((updatedPkg.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0) {
4386                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4387            }
4388        }
4389
4390        // Verify certificates against what was last scanned
4391        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4392
4393        /*
4394         * A new system app appeared, but we already had a non-system one of the
4395         * same name installed earlier.
4396         */
4397        boolean shouldHideSystemApp = false;
4398        if (updatedPkg == null && ps != null
4399                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4400            /*
4401             * Check to make sure the signatures match first. If they don't,
4402             * wipe the installed application and its data.
4403             */
4404            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4405                    != PackageManager.SIGNATURE_MATCH) {
4406                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4407                        + " signatures don't match existing userdata copy; removing");
4408                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4409                ps = null;
4410            } else {
4411                /*
4412                 * If the newly-added system app is an older version than the
4413                 * already installed version, hide it. It will be scanned later
4414                 * and re-added like an update.
4415                 */
4416                if (pkg.mVersionCode <= ps.versionCode) {
4417                    shouldHideSystemApp = true;
4418                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4419                            + " but new version " + pkg.mVersionCode + " better than installed "
4420                            + ps.versionCode + "; hiding system");
4421                } else {
4422                    /*
4423                     * The newly found system app is a newer version that the
4424                     * one previously installed. Simply remove the
4425                     * already-installed application and replace it with our own
4426                     * while keeping the application data.
4427                     */
4428                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4429                            + " reverting from " + ps.codePathString + ": new version "
4430                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4431                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4432                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4433                            getAppDexInstructionSets(ps));
4434                    synchronized (mInstallLock) {
4435                        args.cleanUpResourcesLI();
4436                    }
4437                }
4438            }
4439        }
4440
4441        // The apk is forward locked (not public) if its code and resources
4442        // are kept in different files. (except for app in either system or
4443        // vendor path).
4444        // TODO grab this value from PackageSettings
4445        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4446            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4447                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4448            }
4449        }
4450
4451        // TODO: extend to support forward-locked splits
4452        String resourcePath = null;
4453        String baseResourcePath = null;
4454        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4455            if (ps != null && ps.resourcePathString != null) {
4456                resourcePath = ps.resourcePathString;
4457                baseResourcePath = ps.resourcePathString;
4458            } else {
4459                // Should not happen at all. Just log an error.
4460                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4461            }
4462        } else {
4463            resourcePath = pkg.codePath;
4464            baseResourcePath = pkg.baseCodePath;
4465        }
4466
4467        // Set application objects path explicitly.
4468        pkg.applicationInfo.setCodePath(pkg.codePath);
4469        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4470        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4471        pkg.applicationInfo.setResourcePath(resourcePath);
4472        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4473        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4474
4475        // Note that we invoke the following method only if we are about to unpack an application
4476        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4477                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4478
4479        /*
4480         * If the system app should be overridden by a previously installed
4481         * data, hide the system app now and let the /data/app scan pick it up
4482         * again.
4483         */
4484        if (shouldHideSystemApp) {
4485            synchronized (mPackages) {
4486                /*
4487                 * We have to grant systems permissions before we hide, because
4488                 * grantPermissions will assume the package update is trying to
4489                 * expand its permissions.
4490                 */
4491                grantPermissionsLPw(pkg, true, pkg.packageName);
4492                mSettings.disableSystemPackageLPw(pkg.packageName);
4493            }
4494        }
4495
4496        return scannedPkg;
4497    }
4498
4499    private static String fixProcessName(String defProcessName,
4500            String processName, int uid) {
4501        if (processName == null) {
4502            return defProcessName;
4503        }
4504        return processName;
4505    }
4506
4507    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4508            throws PackageManagerException {
4509        if (pkgSetting.signatures.mSignatures != null) {
4510            // Already existing package. Make sure signatures match
4511            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4512                    == PackageManager.SIGNATURE_MATCH;
4513            if (!match) {
4514                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4515                        == PackageManager.SIGNATURE_MATCH;
4516            }
4517            if (!match) {
4518                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4519                        == PackageManager.SIGNATURE_MATCH;
4520            }
4521            if (!match) {
4522                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4523                        + pkg.packageName + " signatures do not match the "
4524                        + "previously installed version; ignoring!");
4525            }
4526        }
4527
4528        // Check for shared user signatures
4529        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4530            // Already existing package. Make sure signatures match
4531            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4532                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4533            if (!match) {
4534                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4535                        == PackageManager.SIGNATURE_MATCH;
4536            }
4537            if (!match) {
4538                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4539                        == PackageManager.SIGNATURE_MATCH;
4540            }
4541            if (!match) {
4542                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4543                        "Package " + pkg.packageName
4544                        + " has no signatures that match those in shared user "
4545                        + pkgSetting.sharedUser.name + "; ignoring!");
4546            }
4547        }
4548    }
4549
4550    /**
4551     * Enforces that only the system UID or root's UID can call a method exposed
4552     * via Binder.
4553     *
4554     * @param message used as message if SecurityException is thrown
4555     * @throws SecurityException if the caller is not system or root
4556     */
4557    private static final void enforceSystemOrRoot(String message) {
4558        final int uid = Binder.getCallingUid();
4559        if (uid != Process.SYSTEM_UID && uid != 0) {
4560            throw new SecurityException(message);
4561        }
4562    }
4563
4564    @Override
4565    public void performBootDexOpt() {
4566        enforceSystemOrRoot("Only the system can request dexopt be performed");
4567
4568        // Before everything else, see whether we need to fstrim.
4569        try {
4570            IMountService ms = PackageHelper.getMountService();
4571            if (ms != null) {
4572                final boolean isUpgrade = isUpgrade();
4573                boolean doTrim = isUpgrade;
4574                if (doTrim) {
4575                    Slog.w(TAG, "Running disk maintenance immediately due to system update");
4576                } else {
4577                    final long interval = android.provider.Settings.Global.getLong(
4578                            mContext.getContentResolver(),
4579                            android.provider.Settings.Global.FSTRIM_MANDATORY_INTERVAL,
4580                            DEFAULT_MANDATORY_FSTRIM_INTERVAL);
4581                    if (interval > 0) {
4582                        final long timeSinceLast = System.currentTimeMillis() - ms.lastMaintenance();
4583                        if (timeSinceLast > interval) {
4584                            doTrim = true;
4585                            Slog.w(TAG, "No disk maintenance in " + timeSinceLast
4586                                    + "; running immediately");
4587                        }
4588                    }
4589                }
4590                if (doTrim) {
4591                    if (!isFirstBoot()) {
4592                        try {
4593                            ActivityManagerNative.getDefault().showBootMessage(
4594                                    mContext.getResources().getString(
4595                                            R.string.android_upgrading_fstrim), true);
4596                        } catch (RemoteException e) {
4597                        }
4598                    }
4599                    ms.runMaintenance();
4600                }
4601            } else {
4602                Slog.e(TAG, "Mount service unavailable!");
4603            }
4604        } catch (RemoteException e) {
4605            // Can't happen; MountService is local
4606        }
4607
4608        final ArraySet<PackageParser.Package> pkgs;
4609        synchronized (mPackages) {
4610            pkgs = mPackageDexOptimizer.clearDeferredDexOptPackages();
4611        }
4612
4613        if (pkgs != null) {
4614            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4615            // in case the device runs out of space.
4616            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4617            // Give priority to core apps.
4618            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4619                PackageParser.Package pkg = it.next();
4620                if (pkg.coreApp) {
4621                    if (DEBUG_DEXOPT) {
4622                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4623                    }
4624                    sortedPkgs.add(pkg);
4625                    it.remove();
4626                }
4627            }
4628            // Give priority to system apps that listen for pre boot complete.
4629            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4630            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4631            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4632                PackageParser.Package pkg = it.next();
4633                if (pkgNames.contains(pkg.packageName)) {
4634                    if (DEBUG_DEXOPT) {
4635                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4636                    }
4637                    sortedPkgs.add(pkg);
4638                    it.remove();
4639                }
4640            }
4641            // Give priority to system apps.
4642            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4643                PackageParser.Package pkg = it.next();
4644                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4645                    if (DEBUG_DEXOPT) {
4646                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4647                    }
4648                    sortedPkgs.add(pkg);
4649                    it.remove();
4650                }
4651            }
4652            // Give priority to updated system apps.
4653            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4654                PackageParser.Package pkg = it.next();
4655                if (isUpdatedSystemApp(pkg)) {
4656                    if (DEBUG_DEXOPT) {
4657                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4658                    }
4659                    sortedPkgs.add(pkg);
4660                    it.remove();
4661                }
4662            }
4663            // Give priority to apps that listen for boot complete.
4664            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4665            pkgNames = getPackageNamesForIntent(intent);
4666            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4667                PackageParser.Package pkg = it.next();
4668                if (pkgNames.contains(pkg.packageName)) {
4669                    if (DEBUG_DEXOPT) {
4670                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4671                    }
4672                    sortedPkgs.add(pkg);
4673                    it.remove();
4674                }
4675            }
4676            // Filter out packages that aren't recently used.
4677            filterRecentlyUsedApps(pkgs);
4678            // Add all remaining apps.
4679            for (PackageParser.Package pkg : pkgs) {
4680                if (DEBUG_DEXOPT) {
4681                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4682                }
4683                sortedPkgs.add(pkg);
4684            }
4685
4686            // If we want to be lazy, filter everything that wasn't recently used.
4687            if (mLazyDexOpt) {
4688                filterRecentlyUsedApps(sortedPkgs);
4689            }
4690
4691            int i = 0;
4692            int total = sortedPkgs.size();
4693            File dataDir = Environment.getDataDirectory();
4694            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4695            if (lowThreshold == 0) {
4696                throw new IllegalStateException("Invalid low memory threshold");
4697            }
4698            for (PackageParser.Package pkg : sortedPkgs) {
4699                long usableSpace = dataDir.getUsableSpace();
4700                if (usableSpace < lowThreshold) {
4701                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4702                    break;
4703                }
4704                performBootDexOpt(pkg, ++i, total);
4705            }
4706        }
4707    }
4708
4709    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4710        // Filter out packages that aren't recently used.
4711        //
4712        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4713        // should do a full dexopt.
4714        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4715            int total = pkgs.size();
4716            int skipped = 0;
4717            long now = System.currentTimeMillis();
4718            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4719                PackageParser.Package pkg = i.next();
4720                long then = pkg.mLastPackageUsageTimeInMills;
4721                if (then + mDexOptLRUThresholdInMills < now) {
4722                    if (DEBUG_DEXOPT) {
4723                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4724                              ((then == 0) ? "never" : new Date(then)));
4725                    }
4726                    i.remove();
4727                    skipped++;
4728                }
4729            }
4730            if (DEBUG_DEXOPT) {
4731                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4732            }
4733        }
4734    }
4735
4736    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4737        List<ResolveInfo> ris = null;
4738        try {
4739            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4740                    intent, null, 0, UserHandle.USER_OWNER);
4741        } catch (RemoteException e) {
4742        }
4743        ArraySet<String> pkgNames = new ArraySet<String>();
4744        if (ris != null) {
4745            for (ResolveInfo ri : ris) {
4746                pkgNames.add(ri.activityInfo.packageName);
4747            }
4748        }
4749        return pkgNames;
4750    }
4751
4752    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4753        if (DEBUG_DEXOPT) {
4754            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4755        }
4756        if (!isFirstBoot()) {
4757            try {
4758                ActivityManagerNative.getDefault().showBootMessage(
4759                        mContext.getResources().getString(R.string.android_upgrading_apk,
4760                                curr, total), true);
4761            } catch (RemoteException e) {
4762            }
4763        }
4764        PackageParser.Package p = pkg;
4765        synchronized (mInstallLock) {
4766            mPackageDexOptimizer.performDexOpt(p, null /* instruction sets */,
4767                    false /* force dex */, false /* defer */, true /* include dependencies */);
4768        }
4769    }
4770
4771    @Override
4772    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4773        return performDexOpt(packageName, instructionSet, false);
4774    }
4775
4776    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4777        if (info.primaryCpuAbi == null) {
4778            return getPreferredInstructionSet();
4779        }
4780
4781        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4782    }
4783
4784    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4785        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4786        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4787        if (!dexopt && !updateUsage) {
4788            // We aren't going to dexopt or update usage, so bail early.
4789            return false;
4790        }
4791        PackageParser.Package p;
4792        final String targetInstructionSet;
4793        synchronized (mPackages) {
4794            p = mPackages.get(packageName);
4795            if (p == null) {
4796                return false;
4797            }
4798            if (updateUsage) {
4799                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4800            }
4801            mPackageUsage.write(false);
4802            if (!dexopt) {
4803                // We aren't going to dexopt, so bail early.
4804                return false;
4805            }
4806
4807            targetInstructionSet = instructionSet != null ? instructionSet :
4808                    getPrimaryInstructionSet(p.applicationInfo);
4809            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4810                return false;
4811            }
4812        }
4813
4814        synchronized (mInstallLock) {
4815            final String[] instructionSets = new String[] { targetInstructionSet };
4816            int result = mPackageDexOptimizer.performDexOpt(p, instructionSets,
4817                    false /* forceDex */, false /* defer */, true /* inclDependencies */);
4818            return result == PackageDexOptimizer.DEX_OPT_PERFORMED;
4819        }
4820    }
4821
4822    public ArraySet<String> getPackagesThatNeedDexOpt() {
4823        ArraySet<String> pkgs = null;
4824        synchronized (mPackages) {
4825            for (PackageParser.Package p : mPackages.values()) {
4826                if (DEBUG_DEXOPT) {
4827                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4828                }
4829                if (!p.mDexOptPerformed.isEmpty()) {
4830                    continue;
4831                }
4832                if (pkgs == null) {
4833                    pkgs = new ArraySet<String>();
4834                }
4835                pkgs.add(p.packageName);
4836            }
4837        }
4838        return pkgs;
4839    }
4840
4841    public void shutdown() {
4842        mPackageUsage.write(true);
4843    }
4844
4845    @Override
4846    public void forceDexOpt(String packageName) {
4847        enforceSystemOrRoot("forceDexOpt");
4848
4849        PackageParser.Package pkg;
4850        synchronized (mPackages) {
4851            pkg = mPackages.get(packageName);
4852            if (pkg == null) {
4853                throw new IllegalArgumentException("Missing package: " + packageName);
4854            }
4855        }
4856
4857        synchronized (mInstallLock) {
4858            final String[] instructionSets = new String[] {
4859                    getPrimaryInstructionSet(pkg.applicationInfo) };
4860            final int res = mPackageDexOptimizer.performDexOpt(pkg, instructionSets,
4861                    true /*forceDex*/, false /* defer */, true /* inclDependencies */);
4862            if (res != PackageDexOptimizer.DEX_OPT_PERFORMED) {
4863                throw new IllegalStateException("Failed to dexopt: " + res);
4864            }
4865        }
4866    }
4867
4868    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4869        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4870            Slog.w(TAG, "Unable to update from " + oldPkg.name
4871                    + " to " + newPkg.packageName
4872                    + ": old package not in system partition");
4873            return false;
4874        } else if (mPackages.get(oldPkg.name) != null) {
4875            Slog.w(TAG, "Unable to update from " + oldPkg.name
4876                    + " to " + newPkg.packageName
4877                    + ": old package still exists");
4878            return false;
4879        }
4880        return true;
4881    }
4882
4883    private File getDataPathForPackage(String packageName, int userId) {
4884        /*
4885         * Until we fully support multiple users, return the directory we
4886         * previously would have. The PackageManagerTests will need to be
4887         * revised when this is changed back..
4888         */
4889        if (userId == 0) {
4890            return new File(mAppDataDir, packageName);
4891        } else {
4892            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4893                + File.separator + packageName);
4894        }
4895    }
4896
4897    private int createDataDirsLI(String packageName, int uid, String seinfo) {
4898        int[] users = sUserManager.getUserIds();
4899        int res = mInstaller.install(packageName, uid, uid, seinfo);
4900        if (res < 0) {
4901            return res;
4902        }
4903        for (int user : users) {
4904            if (user != 0) {
4905                res = mInstaller.createUserData(packageName,
4906                        UserHandle.getUid(user, uid), user, seinfo);
4907                if (res < 0) {
4908                    return res;
4909                }
4910            }
4911        }
4912        return res;
4913    }
4914
4915    private int removeDataDirsLI(String packageName) {
4916        int[] users = sUserManager.getUserIds();
4917        int res = 0;
4918        for (int user : users) {
4919            int resInner = mInstaller.remove(packageName, user);
4920            if (resInner < 0) {
4921                res = resInner;
4922            }
4923        }
4924
4925        return res;
4926    }
4927
4928    private int deleteCodeCacheDirsLI(String packageName) {
4929        int[] users = sUserManager.getUserIds();
4930        int res = 0;
4931        for (int user : users) {
4932            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
4933            if (resInner < 0) {
4934                res = resInner;
4935            }
4936        }
4937        return res;
4938    }
4939
4940    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
4941            PackageParser.Package changingLib) {
4942        if (file.path != null) {
4943            usesLibraryFiles.add(file.path);
4944            return;
4945        }
4946        PackageParser.Package p = mPackages.get(file.apk);
4947        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
4948            // If we are doing this while in the middle of updating a library apk,
4949            // then we need to make sure to use that new apk for determining the
4950            // dependencies here.  (We haven't yet finished committing the new apk
4951            // to the package manager state.)
4952            if (p == null || p.packageName.equals(changingLib.packageName)) {
4953                p = changingLib;
4954            }
4955        }
4956        if (p != null) {
4957            usesLibraryFiles.addAll(p.getAllCodePaths());
4958        }
4959    }
4960
4961    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
4962            PackageParser.Package changingLib) throws PackageManagerException {
4963        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
4964            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
4965            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
4966            for (int i=0; i<N; i++) {
4967                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
4968                if (file == null) {
4969                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
4970                            "Package " + pkg.packageName + " requires unavailable shared library "
4971                            + pkg.usesLibraries.get(i) + "; failing!");
4972                }
4973                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4974            }
4975            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
4976            for (int i=0; i<N; i++) {
4977                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
4978                if (file == null) {
4979                    Slog.w(TAG, "Package " + pkg.packageName
4980                            + " desires unavailable shared library "
4981                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
4982                } else {
4983                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4984                }
4985            }
4986            N = usesLibraryFiles.size();
4987            if (N > 0) {
4988                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
4989            } else {
4990                pkg.usesLibraryFiles = null;
4991            }
4992        }
4993    }
4994
4995    private static boolean hasString(List<String> list, List<String> which) {
4996        if (list == null) {
4997            return false;
4998        }
4999        for (int i=list.size()-1; i>=0; i--) {
5000            for (int j=which.size()-1; j>=0; j--) {
5001                if (which.get(j).equals(list.get(i))) {
5002                    return true;
5003                }
5004            }
5005        }
5006        return false;
5007    }
5008
5009    private void updateAllSharedLibrariesLPw() {
5010        for (PackageParser.Package pkg : mPackages.values()) {
5011            try {
5012                updateSharedLibrariesLPw(pkg, null);
5013            } catch (PackageManagerException e) {
5014                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5015            }
5016        }
5017    }
5018
5019    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5020            PackageParser.Package changingPkg) {
5021        ArrayList<PackageParser.Package> res = null;
5022        for (PackageParser.Package pkg : mPackages.values()) {
5023            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5024                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5025                if (res == null) {
5026                    res = new ArrayList<PackageParser.Package>();
5027                }
5028                res.add(pkg);
5029                try {
5030                    updateSharedLibrariesLPw(pkg, changingPkg);
5031                } catch (PackageManagerException e) {
5032                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5033                }
5034            }
5035        }
5036        return res;
5037    }
5038
5039    /**
5040     * Derive the value of the {@code cpuAbiOverride} based on the provided
5041     * value and an optional stored value from the package settings.
5042     */
5043    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5044        String cpuAbiOverride = null;
5045
5046        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5047            cpuAbiOverride = null;
5048        } else if (abiOverride != null) {
5049            cpuAbiOverride = abiOverride;
5050        } else if (settings != null) {
5051            cpuAbiOverride = settings.cpuAbiOverrideString;
5052        }
5053
5054        return cpuAbiOverride;
5055    }
5056
5057    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5058            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5059        boolean success = false;
5060        try {
5061            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5062                    currentTime, user);
5063            success = true;
5064            return res;
5065        } finally {
5066            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5067                removeDataDirsLI(pkg.packageName);
5068            }
5069        }
5070    }
5071
5072    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5073            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5074        final File scanFile = new File(pkg.codePath);
5075        if (pkg.applicationInfo.getCodePath() == null ||
5076                pkg.applicationInfo.getResourcePath() == null) {
5077            // Bail out. The resource and code paths haven't been set.
5078            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5079                    "Code and resource paths haven't been set correctly");
5080        }
5081
5082        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5083            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5084        } else {
5085            // Only allow system apps to be flagged as core apps.
5086            pkg.coreApp = false;
5087        }
5088
5089        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5090            pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
5091        }
5092
5093        if (mCustomResolverComponentName != null &&
5094                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5095            setUpCustomResolverActivity(pkg);
5096        }
5097
5098        if (pkg.packageName.equals("android")) {
5099            synchronized (mPackages) {
5100                if (mAndroidApplication != null) {
5101                    Slog.w(TAG, "*************************************************");
5102                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5103                    Slog.w(TAG, " file=" + scanFile);
5104                    Slog.w(TAG, "*************************************************");
5105                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5106                            "Core android package being redefined.  Skipping.");
5107                }
5108
5109                // Set up information for our fall-back user intent resolution activity.
5110                mPlatformPackage = pkg;
5111                pkg.mVersionCode = mSdkVersion;
5112                mAndroidApplication = pkg.applicationInfo;
5113
5114                if (!mResolverReplaced) {
5115                    mResolveActivity.applicationInfo = mAndroidApplication;
5116                    mResolveActivity.name = ResolverActivity.class.getName();
5117                    mResolveActivity.packageName = mAndroidApplication.packageName;
5118                    mResolveActivity.processName = "system:ui";
5119                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5120                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5121                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5122                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5123                    mResolveActivity.exported = true;
5124                    mResolveActivity.enabled = true;
5125                    mResolveInfo.activityInfo = mResolveActivity;
5126                    mResolveInfo.priority = 0;
5127                    mResolveInfo.preferredOrder = 0;
5128                    mResolveInfo.match = 0;
5129                    mResolveComponentName = new ComponentName(
5130                            mAndroidApplication.packageName, mResolveActivity.name);
5131                }
5132            }
5133        }
5134
5135        if (DEBUG_PACKAGE_SCANNING) {
5136            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5137                Log.d(TAG, "Scanning package " + pkg.packageName);
5138        }
5139
5140        if (mPackages.containsKey(pkg.packageName)
5141                || mSharedLibraries.containsKey(pkg.packageName)) {
5142            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5143                    "Application package " + pkg.packageName
5144                    + " already installed.  Skipping duplicate.");
5145        }
5146
5147        // If we're only installing presumed-existing packages, require that the
5148        // scanned APK is both already known and at the path previously established
5149        // for it.  Previously unknown packages we pick up normally, but if we have an
5150        // a priori expectation about this package's install presence, enforce it.
5151        if ((scanFlags & SCAN_REQUIRE_KNOWN) != 0) {
5152            PackageSetting known = mSettings.peekPackageLPr(pkg.packageName);
5153            if (known != null) {
5154                if (DEBUG_PACKAGE_SCANNING) {
5155                    Log.d(TAG, "Examining " + pkg.codePath
5156                            + " and requiring known paths " + known.codePathString
5157                            + " & " + known.resourcePathString);
5158                }
5159                if (!pkg.applicationInfo.getCodePath().equals(known.codePathString)
5160                        || !pkg.applicationInfo.getResourcePath().equals(known.resourcePathString)) {
5161                    throw new PackageManagerException(INSTALL_FAILED_PACKAGE_CHANGED,
5162                            "Application package " + pkg.packageName
5163                            + " found at " + pkg.applicationInfo.getCodePath()
5164                            + " but expected at " + known.codePathString + "; ignoring.");
5165                }
5166            }
5167        }
5168
5169        // Initialize package source and resource directories
5170        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5171        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5172
5173        SharedUserSetting suid = null;
5174        PackageSetting pkgSetting = null;
5175
5176        if (!isSystemApp(pkg)) {
5177            // Only system apps can use these features.
5178            pkg.mOriginalPackages = null;
5179            pkg.mRealPackage = null;
5180            pkg.mAdoptPermissions = null;
5181        }
5182
5183        // writer
5184        synchronized (mPackages) {
5185            if (pkg.mSharedUserId != null) {
5186                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, 0, true);
5187                if (suid == null) {
5188                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5189                            "Creating application package " + pkg.packageName
5190                            + " for shared user failed");
5191                }
5192                if (DEBUG_PACKAGE_SCANNING) {
5193                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5194                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5195                                + "): packages=" + suid.packages);
5196                }
5197            }
5198
5199            // Check if we are renaming from an original package name.
5200            PackageSetting origPackage = null;
5201            String realName = null;
5202            if (pkg.mOriginalPackages != null) {
5203                // This package may need to be renamed to a previously
5204                // installed name.  Let's check on that...
5205                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5206                if (pkg.mOriginalPackages.contains(renamed)) {
5207                    // This package had originally been installed as the
5208                    // original name, and we have already taken care of
5209                    // transitioning to the new one.  Just update the new
5210                    // one to continue using the old name.
5211                    realName = pkg.mRealPackage;
5212                    if (!pkg.packageName.equals(renamed)) {
5213                        // Callers into this function may have already taken
5214                        // care of renaming the package; only do it here if
5215                        // it is not already done.
5216                        pkg.setPackageName(renamed);
5217                    }
5218
5219                } else {
5220                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5221                        if ((origPackage = mSettings.peekPackageLPr(
5222                                pkg.mOriginalPackages.get(i))) != null) {
5223                            // We do have the package already installed under its
5224                            // original name...  should we use it?
5225                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5226                                // New package is not compatible with original.
5227                                origPackage = null;
5228                                continue;
5229                            } else if (origPackage.sharedUser != null) {
5230                                // Make sure uid is compatible between packages.
5231                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5232                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5233                                            + " to " + pkg.packageName + ": old uid "
5234                                            + origPackage.sharedUser.name
5235                                            + " differs from " + pkg.mSharedUserId);
5236                                    origPackage = null;
5237                                    continue;
5238                                }
5239                            } else {
5240                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5241                                        + pkg.packageName + " to old name " + origPackage.name);
5242                            }
5243                            break;
5244                        }
5245                    }
5246                }
5247            }
5248
5249            if (mTransferedPackages.contains(pkg.packageName)) {
5250                Slog.w(TAG, "Package " + pkg.packageName
5251                        + " was transferred to another, but its .apk remains");
5252            }
5253
5254            // Just create the setting, don't add it yet. For already existing packages
5255            // the PkgSetting exists already and doesn't have to be created.
5256            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5257                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5258                    pkg.applicationInfo.primaryCpuAbi,
5259                    pkg.applicationInfo.secondaryCpuAbi,
5260                    pkg.applicationInfo.flags, pkg.applicationInfo.privateFlags,
5261                    user, false);
5262            if (pkgSetting == null) {
5263                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5264                        "Creating application package " + pkg.packageName + " failed");
5265            }
5266
5267            if (pkgSetting.origPackage != null) {
5268                // If we are first transitioning from an original package,
5269                // fix up the new package's name now.  We need to do this after
5270                // looking up the package under its new name, so getPackageLP
5271                // can take care of fiddling things correctly.
5272                pkg.setPackageName(origPackage.name);
5273
5274                // File a report about this.
5275                String msg = "New package " + pkgSetting.realName
5276                        + " renamed to replace old package " + pkgSetting.name;
5277                reportSettingsProblem(Log.WARN, msg);
5278
5279                // Make a note of it.
5280                mTransferedPackages.add(origPackage.name);
5281
5282                // No longer need to retain this.
5283                pkgSetting.origPackage = null;
5284            }
5285
5286            if (realName != null) {
5287                // Make a note of it.
5288                mTransferedPackages.add(pkg.packageName);
5289            }
5290
5291            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5292                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5293            }
5294
5295            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5296                // Check all shared libraries and map to their actual file path.
5297                // We only do this here for apps not on a system dir, because those
5298                // are the only ones that can fail an install due to this.  We
5299                // will take care of the system apps by updating all of their
5300                // library paths after the scan is done.
5301                updateSharedLibrariesLPw(pkg, null);
5302            }
5303
5304            if (mFoundPolicyFile) {
5305                SELinuxMMAC.assignSeinfoValue(pkg);
5306            }
5307
5308            pkg.applicationInfo.uid = pkgSetting.appId;
5309            pkg.mExtras = pkgSetting;
5310            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5311                try {
5312                    verifySignaturesLP(pkgSetting, pkg);
5313                    // We just determined the app is signed correctly, so bring
5314                    // over the latest parsed certs.
5315                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5316                } catch (PackageManagerException e) {
5317                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5318                        throw e;
5319                    }
5320                    // The signature has changed, but this package is in the system
5321                    // image...  let's recover!
5322                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5323                    // However...  if this package is part of a shared user, but it
5324                    // doesn't match the signature of the shared user, let's fail.
5325                    // What this means is that you can't change the signatures
5326                    // associated with an overall shared user, which doesn't seem all
5327                    // that unreasonable.
5328                    if (pkgSetting.sharedUser != null) {
5329                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5330                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5331                            throw new PackageManagerException(
5332                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5333                                            "Signature mismatch for shared user : "
5334                                            + pkgSetting.sharedUser);
5335                        }
5336                    }
5337                    // File a report about this.
5338                    String msg = "System package " + pkg.packageName
5339                        + " signature changed; retaining data.";
5340                    reportSettingsProblem(Log.WARN, msg);
5341                }
5342            } else {
5343                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5344                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5345                            + pkg.packageName + " upgrade keys do not match the "
5346                            + "previously installed version");
5347                } else {
5348                    // We just determined the app is signed correctly, so bring
5349                    // over the latest parsed certs.
5350                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5351                }
5352            }
5353            // Verify that this new package doesn't have any content providers
5354            // that conflict with existing packages.  Only do this if the
5355            // package isn't already installed, since we don't want to break
5356            // things that are installed.
5357            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5358                final int N = pkg.providers.size();
5359                int i;
5360                for (i=0; i<N; i++) {
5361                    PackageParser.Provider p = pkg.providers.get(i);
5362                    if (p.info.authority != null) {
5363                        String names[] = p.info.authority.split(";");
5364                        for (int j = 0; j < names.length; j++) {
5365                            if (mProvidersByAuthority.containsKey(names[j])) {
5366                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5367                                final String otherPackageName =
5368                                        ((other != null && other.getComponentName() != null) ?
5369                                                other.getComponentName().getPackageName() : "?");
5370                                throw new PackageManagerException(
5371                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5372                                                "Can't install because provider name " + names[j]
5373                                                + " (in package " + pkg.applicationInfo.packageName
5374                                                + ") is already used by " + otherPackageName);
5375                            }
5376                        }
5377                    }
5378                }
5379            }
5380
5381            if (pkg.mAdoptPermissions != null) {
5382                // This package wants to adopt ownership of permissions from
5383                // another package.
5384                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5385                    final String origName = pkg.mAdoptPermissions.get(i);
5386                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5387                    if (orig != null) {
5388                        if (verifyPackageUpdateLPr(orig, pkg)) {
5389                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5390                                    + pkg.packageName);
5391                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5392                        }
5393                    }
5394                }
5395            }
5396        }
5397
5398        final String pkgName = pkg.packageName;
5399
5400        final long scanFileTime = scanFile.lastModified();
5401        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5402        pkg.applicationInfo.processName = fixProcessName(
5403                pkg.applicationInfo.packageName,
5404                pkg.applicationInfo.processName,
5405                pkg.applicationInfo.uid);
5406
5407        File dataPath;
5408        if (mPlatformPackage == pkg) {
5409            // The system package is special.
5410            dataPath = new File(Environment.getDataDirectory(), "system");
5411
5412            pkg.applicationInfo.dataDir = dataPath.getPath();
5413
5414        } else {
5415            // This is a normal package, need to make its data directory.
5416            dataPath = getDataPathForPackage(pkg.packageName, 0);
5417
5418            boolean uidError = false;
5419            if (dataPath.exists()) {
5420                int currentUid = 0;
5421                try {
5422                    StructStat stat = Os.stat(dataPath.getPath());
5423                    currentUid = stat.st_uid;
5424                } catch (ErrnoException e) {
5425                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5426                }
5427
5428                // If we have mismatched owners for the data path, we have a problem.
5429                if (currentUid != pkg.applicationInfo.uid) {
5430                    boolean recovered = false;
5431                    if (currentUid == 0) {
5432                        // The directory somehow became owned by root.  Wow.
5433                        // This is probably because the system was stopped while
5434                        // installd was in the middle of messing with its libs
5435                        // directory.  Ask installd to fix that.
5436                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5437                                pkg.applicationInfo.uid);
5438                        if (ret >= 0) {
5439                            recovered = true;
5440                            String msg = "Package " + pkg.packageName
5441                                    + " unexpectedly changed to uid 0; recovered to " +
5442                                    + pkg.applicationInfo.uid;
5443                            reportSettingsProblem(Log.WARN, msg);
5444                        }
5445                    }
5446                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5447                            || (scanFlags&SCAN_BOOTING) != 0)) {
5448                        // If this is a system app, we can at least delete its
5449                        // current data so the application will still work.
5450                        int ret = removeDataDirsLI(pkgName);
5451                        if (ret >= 0) {
5452                            // TODO: Kill the processes first
5453                            // Old data gone!
5454                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5455                                    ? "System package " : "Third party package ";
5456                            String msg = prefix + pkg.packageName
5457                                    + " has changed from uid: "
5458                                    + currentUid + " to "
5459                                    + pkg.applicationInfo.uid + "; old data erased";
5460                            reportSettingsProblem(Log.WARN, msg);
5461                            recovered = true;
5462
5463                            // And now re-install the app.
5464                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5465                                                   pkg.applicationInfo.seinfo);
5466                            if (ret == -1) {
5467                                // Ack should not happen!
5468                                msg = prefix + pkg.packageName
5469                                        + " could not have data directory re-created after delete.";
5470                                reportSettingsProblem(Log.WARN, msg);
5471                                throw new PackageManagerException(
5472                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5473                            }
5474                        }
5475                        if (!recovered) {
5476                            mHasSystemUidErrors = true;
5477                        }
5478                    } else if (!recovered) {
5479                        // If we allow this install to proceed, we will be broken.
5480                        // Abort, abort!
5481                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5482                                "scanPackageLI");
5483                    }
5484                    if (!recovered) {
5485                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5486                            + pkg.applicationInfo.uid + "/fs_"
5487                            + currentUid;
5488                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5489                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5490                        String msg = "Package " + pkg.packageName
5491                                + " has mismatched uid: "
5492                                + currentUid + " on disk, "
5493                                + pkg.applicationInfo.uid + " in settings";
5494                        // writer
5495                        synchronized (mPackages) {
5496                            mSettings.mReadMessages.append(msg);
5497                            mSettings.mReadMessages.append('\n');
5498                            uidError = true;
5499                            if (!pkgSetting.uidError) {
5500                                reportSettingsProblem(Log.ERROR, msg);
5501                            }
5502                        }
5503                    }
5504                }
5505                pkg.applicationInfo.dataDir = dataPath.getPath();
5506                if (mShouldRestoreconData) {
5507                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5508                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5509                                pkg.applicationInfo.uid);
5510                }
5511            } else {
5512                if (DEBUG_PACKAGE_SCANNING) {
5513                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5514                        Log.v(TAG, "Want this data dir: " + dataPath);
5515                }
5516                //invoke installer to do the actual installation
5517                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5518                                           pkg.applicationInfo.seinfo);
5519                if (ret < 0) {
5520                    // Error from installer
5521                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5522                            "Unable to create data dirs [errorCode=" + ret + "]");
5523                }
5524
5525                if (dataPath.exists()) {
5526                    pkg.applicationInfo.dataDir = dataPath.getPath();
5527                } else {
5528                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5529                    pkg.applicationInfo.dataDir = null;
5530                }
5531            }
5532
5533            pkgSetting.uidError = uidError;
5534        }
5535
5536        final String path = scanFile.getPath();
5537        final String codePath = pkg.applicationInfo.getCodePath();
5538        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5539        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5540            setBundledAppAbisAndRoots(pkg, pkgSetting);
5541
5542            // If we haven't found any native libraries for the app, check if it has
5543            // renderscript code. We'll need to force the app to 32 bit if it has
5544            // renderscript bitcode.
5545            if (pkg.applicationInfo.primaryCpuAbi == null
5546                    && pkg.applicationInfo.secondaryCpuAbi == null
5547                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5548                NativeLibraryHelper.Handle handle = null;
5549                try {
5550                    handle = NativeLibraryHelper.Handle.create(scanFile);
5551                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5552                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5553                    }
5554                } catch (IOException ioe) {
5555                    Slog.w(TAG, "Error scanning system app : " + ioe);
5556                } finally {
5557                    IoUtils.closeQuietly(handle);
5558                }
5559            }
5560
5561            setNativeLibraryPaths(pkg);
5562        } else {
5563            // TODO: We can probably be smarter about this stuff. For installed apps,
5564            // we can calculate this information at install time once and for all. For
5565            // system apps, we can probably assume that this information doesn't change
5566            // after the first boot scan. As things stand, we do lots of unnecessary work.
5567
5568            // Give ourselves some initial paths; we'll come back for another
5569            // pass once we've determined ABI below.
5570            setNativeLibraryPaths(pkg);
5571
5572            final boolean isAsec = pkg.isForwardLocked() || isExternal(pkg);
5573            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5574            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5575
5576            NativeLibraryHelper.Handle handle = null;
5577            try {
5578                handle = NativeLibraryHelper.Handle.create(scanFile);
5579                // TODO(multiArch): This can be null for apps that didn't go through the
5580                // usual installation process. We can calculate it again, like we
5581                // do during install time.
5582                //
5583                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5584                // unnecessary.
5585                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5586
5587                // Null out the abis so that they can be recalculated.
5588                pkg.applicationInfo.primaryCpuAbi = null;
5589                pkg.applicationInfo.secondaryCpuAbi = null;
5590                if (isMultiArch(pkg.applicationInfo)) {
5591                    // Warn if we've set an abiOverride for multi-lib packages..
5592                    // By definition, we need to copy both 32 and 64 bit libraries for
5593                    // such packages.
5594                    if (pkg.cpuAbiOverride != null
5595                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5596                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5597                    }
5598
5599                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5600                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5601                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5602                        if (isAsec) {
5603                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5604                        } else {
5605                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5606                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5607                                    useIsaSpecificSubdirs);
5608                        }
5609                    }
5610
5611                    maybeThrowExceptionForMultiArchCopy(
5612                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5613
5614                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5615                        if (isAsec) {
5616                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5617                        } else {
5618                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5619                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5620                                    useIsaSpecificSubdirs);
5621                        }
5622                    }
5623
5624                    maybeThrowExceptionForMultiArchCopy(
5625                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5626
5627                    if (abi64 >= 0) {
5628                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5629                    }
5630
5631                    if (abi32 >= 0) {
5632                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5633                        if (abi64 >= 0) {
5634                            pkg.applicationInfo.secondaryCpuAbi = abi;
5635                        } else {
5636                            pkg.applicationInfo.primaryCpuAbi = abi;
5637                        }
5638                    }
5639                } else {
5640                    String[] abiList = (cpuAbiOverride != null) ?
5641                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5642
5643                    // Enable gross and lame hacks for apps that are built with old
5644                    // SDK tools. We must scan their APKs for renderscript bitcode and
5645                    // not launch them if it's present. Don't bother checking on devices
5646                    // that don't have 64 bit support.
5647                    boolean needsRenderScriptOverride = false;
5648                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5649                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5650                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5651                        needsRenderScriptOverride = true;
5652                    }
5653
5654                    final int copyRet;
5655                    if (isAsec) {
5656                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5657                    } else {
5658                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5659                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5660                    }
5661
5662                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5663                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5664                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5665                    }
5666
5667                    if (copyRet >= 0) {
5668                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5669                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5670                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5671                    } else if (needsRenderScriptOverride) {
5672                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5673                    }
5674                }
5675            } catch (IOException ioe) {
5676                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5677            } finally {
5678                IoUtils.closeQuietly(handle);
5679            }
5680
5681            // Now that we've calculated the ABIs and determined if it's an internal app,
5682            // we will go ahead and populate the nativeLibraryPath.
5683            setNativeLibraryPaths(pkg);
5684
5685            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5686            final int[] userIds = sUserManager.getUserIds();
5687            synchronized (mInstallLock) {
5688                // Create a native library symlink only if we have native libraries
5689                // and if the native libraries are 32 bit libraries. We do not provide
5690                // this symlink for 64 bit libraries.
5691                if (pkg.applicationInfo.primaryCpuAbi != null &&
5692                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5693                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5694                    for (int userId : userIds) {
5695                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5696                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5697                                    "Failed linking native library dir (user=" + userId + ")");
5698                        }
5699                    }
5700                }
5701            }
5702        }
5703
5704        // This is a special case for the "system" package, where the ABI is
5705        // dictated by the zygote configuration (and init.rc). We should keep track
5706        // of this ABI so that we can deal with "normal" applications that run under
5707        // the same UID correctly.
5708        if (mPlatformPackage == pkg) {
5709            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5710                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5711        }
5712
5713        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5714        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5715        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5716        // Copy the derived override back to the parsed package, so that we can
5717        // update the package settings accordingly.
5718        pkg.cpuAbiOverride = cpuAbiOverride;
5719
5720        if (DEBUG_ABI_SELECTION) {
5721            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5722                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5723                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5724        }
5725
5726        // Push the derived path down into PackageSettings so we know what to
5727        // clean up at uninstall time.
5728        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5729
5730        if (DEBUG_ABI_SELECTION) {
5731            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5732                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5733                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5734        }
5735
5736        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5737            // We don't do this here during boot because we can do it all
5738            // at once after scanning all existing packages.
5739            //
5740            // We also do this *before* we perform dexopt on this package, so that
5741            // we can avoid redundant dexopts, and also to make sure we've got the
5742            // code and package path correct.
5743            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5744                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5745        }
5746
5747        if ((scanFlags & SCAN_NO_DEX) == 0) {
5748            int result = mPackageDexOptimizer.performDexOpt(pkg, null /* instruction sets */,
5749                    forceDex, (scanFlags & SCAN_DEFER_DEX) != 0, false /* inclDependencies */);
5750            if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5751                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5752            }
5753        }
5754
5755        if (mFactoryTest && pkg.requestedPermissions.contains(
5756                android.Manifest.permission.FACTORY_TEST)) {
5757            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5758        }
5759
5760        ArrayList<PackageParser.Package> clientLibPkgs = null;
5761
5762        // writer
5763        synchronized (mPackages) {
5764            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5765                // Only system apps can add new shared libraries.
5766                if (pkg.libraryNames != null) {
5767                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5768                        String name = pkg.libraryNames.get(i);
5769                        boolean allowed = false;
5770                        if (isUpdatedSystemApp(pkg)) {
5771                            // New library entries can only be added through the
5772                            // system image.  This is important to get rid of a lot
5773                            // of nasty edge cases: for example if we allowed a non-
5774                            // system update of the app to add a library, then uninstalling
5775                            // the update would make the library go away, and assumptions
5776                            // we made such as through app install filtering would now
5777                            // have allowed apps on the device which aren't compatible
5778                            // with it.  Better to just have the restriction here, be
5779                            // conservative, and create many fewer cases that can negatively
5780                            // impact the user experience.
5781                            final PackageSetting sysPs = mSettings
5782                                    .getDisabledSystemPkgLPr(pkg.packageName);
5783                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5784                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5785                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5786                                        allowed = true;
5787                                        allowed = true;
5788                                        break;
5789                                    }
5790                                }
5791                            }
5792                        } else {
5793                            allowed = true;
5794                        }
5795                        if (allowed) {
5796                            if (!mSharedLibraries.containsKey(name)) {
5797                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5798                            } else if (!name.equals(pkg.packageName)) {
5799                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5800                                        + name + " already exists; skipping");
5801                            }
5802                        } else {
5803                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5804                                    + name + " that is not declared on system image; skipping");
5805                        }
5806                    }
5807                    if ((scanFlags&SCAN_BOOTING) == 0) {
5808                        // If we are not booting, we need to update any applications
5809                        // that are clients of our shared library.  If we are booting,
5810                        // this will all be done once the scan is complete.
5811                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5812                    }
5813                }
5814            }
5815        }
5816
5817        // We also need to dexopt any apps that are dependent on this library.  Note that
5818        // if these fail, we should abort the install since installing the library will
5819        // result in some apps being broken.
5820        if (clientLibPkgs != null) {
5821            if ((scanFlags & SCAN_NO_DEX) == 0) {
5822                for (int i = 0; i < clientLibPkgs.size(); i++) {
5823                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5824                    int result = mPackageDexOptimizer.performDexOpt(clientPkg,
5825                            null /* instruction sets */, forceDex,
5826                            (scanFlags & SCAN_DEFER_DEX) != 0, false);
5827                    if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5828                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5829                                "scanPackageLI failed to dexopt clientLibPkgs");
5830                    }
5831                }
5832            }
5833        }
5834
5835        // Request the ActivityManager to kill the process(only for existing packages)
5836        // so that we do not end up in a confused state while the user is still using the older
5837        // version of the application while the new one gets installed.
5838        if ((scanFlags & SCAN_REPLACING) != 0) {
5839            killApplication(pkg.applicationInfo.packageName,
5840                        pkg.applicationInfo.uid, "update pkg");
5841        }
5842
5843        // Also need to kill any apps that are dependent on the library.
5844        if (clientLibPkgs != null) {
5845            for (int i=0; i<clientLibPkgs.size(); i++) {
5846                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5847                killApplication(clientPkg.applicationInfo.packageName,
5848                        clientPkg.applicationInfo.uid, "update lib");
5849            }
5850        }
5851
5852        // writer
5853        synchronized (mPackages) {
5854            // We don't expect installation to fail beyond this point
5855
5856            // Add the new setting to mSettings
5857            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5858            // Add the new setting to mPackages
5859            mPackages.put(pkg.applicationInfo.packageName, pkg);
5860            // Make sure we don't accidentally delete its data.
5861            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5862            while (iter.hasNext()) {
5863                PackageCleanItem item = iter.next();
5864                if (pkgName.equals(item.packageName)) {
5865                    iter.remove();
5866                }
5867            }
5868
5869            // Take care of first install / last update times.
5870            if (currentTime != 0) {
5871                if (pkgSetting.firstInstallTime == 0) {
5872                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5873                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5874                    pkgSetting.lastUpdateTime = currentTime;
5875                }
5876            } else if (pkgSetting.firstInstallTime == 0) {
5877                // We need *something*.  Take time time stamp of the file.
5878                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5879            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5880                if (scanFileTime != pkgSetting.timeStamp) {
5881                    // A package on the system image has changed; consider this
5882                    // to be an update.
5883                    pkgSetting.lastUpdateTime = scanFileTime;
5884                }
5885            }
5886
5887            // Add the package's KeySets to the global KeySetManagerService
5888            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5889            try {
5890                // Old KeySetData no longer valid.
5891                ksms.removeAppKeySetDataLPw(pkg.packageName);
5892                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5893                if (pkg.mKeySetMapping != null) {
5894                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5895                            pkg.mKeySetMapping.entrySet()) {
5896                        if (entry.getValue() != null) {
5897                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5898                                                          entry.getValue(), entry.getKey());
5899                        }
5900                    }
5901                    if (pkg.mUpgradeKeySets != null) {
5902                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5903                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5904                        }
5905                    }
5906                }
5907            } catch (NullPointerException e) {
5908                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5909            } catch (IllegalArgumentException e) {
5910                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5911            }
5912
5913            int N = pkg.providers.size();
5914            StringBuilder r = null;
5915            int i;
5916            for (i=0; i<N; i++) {
5917                PackageParser.Provider p = pkg.providers.get(i);
5918                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5919                        p.info.processName, pkg.applicationInfo.uid);
5920                mProviders.addProvider(p);
5921                p.syncable = p.info.isSyncable;
5922                if (p.info.authority != null) {
5923                    String names[] = p.info.authority.split(";");
5924                    p.info.authority = null;
5925                    for (int j = 0; j < names.length; j++) {
5926                        if (j == 1 && p.syncable) {
5927                            // We only want the first authority for a provider to possibly be
5928                            // syncable, so if we already added this provider using a different
5929                            // authority clear the syncable flag. We copy the provider before
5930                            // changing it because the mProviders object contains a reference
5931                            // to a provider that we don't want to change.
5932                            // Only do this for the second authority since the resulting provider
5933                            // object can be the same for all future authorities for this provider.
5934                            p = new PackageParser.Provider(p);
5935                            p.syncable = false;
5936                        }
5937                        if (!mProvidersByAuthority.containsKey(names[j])) {
5938                            mProvidersByAuthority.put(names[j], p);
5939                            if (p.info.authority == null) {
5940                                p.info.authority = names[j];
5941                            } else {
5942                                p.info.authority = p.info.authority + ";" + names[j];
5943                            }
5944                            if (DEBUG_PACKAGE_SCANNING) {
5945                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5946                                    Log.d(TAG, "Registered content provider: " + names[j]
5947                                            + ", className = " + p.info.name + ", isSyncable = "
5948                                            + p.info.isSyncable);
5949                            }
5950                        } else {
5951                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5952                            Slog.w(TAG, "Skipping provider name " + names[j] +
5953                                    " (in package " + pkg.applicationInfo.packageName +
5954                                    "): name already used by "
5955                                    + ((other != null && other.getComponentName() != null)
5956                                            ? other.getComponentName().getPackageName() : "?"));
5957                        }
5958                    }
5959                }
5960                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5961                    if (r == null) {
5962                        r = new StringBuilder(256);
5963                    } else {
5964                        r.append(' ');
5965                    }
5966                    r.append(p.info.name);
5967                }
5968            }
5969            if (r != null) {
5970                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
5971            }
5972
5973            N = pkg.services.size();
5974            r = null;
5975            for (i=0; i<N; i++) {
5976                PackageParser.Service s = pkg.services.get(i);
5977                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
5978                        s.info.processName, pkg.applicationInfo.uid);
5979                mServices.addService(s);
5980                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5981                    if (r == null) {
5982                        r = new StringBuilder(256);
5983                    } else {
5984                        r.append(' ');
5985                    }
5986                    r.append(s.info.name);
5987                }
5988            }
5989            if (r != null) {
5990                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
5991            }
5992
5993            N = pkg.receivers.size();
5994            r = null;
5995            for (i=0; i<N; i++) {
5996                PackageParser.Activity a = pkg.receivers.get(i);
5997                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5998                        a.info.processName, pkg.applicationInfo.uid);
5999                mReceivers.addActivity(a, "receiver");
6000                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6001                    if (r == null) {
6002                        r = new StringBuilder(256);
6003                    } else {
6004                        r.append(' ');
6005                    }
6006                    r.append(a.info.name);
6007                }
6008            }
6009            if (r != null) {
6010                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6011            }
6012
6013            N = pkg.activities.size();
6014            r = null;
6015            for (i=0; i<N; i++) {
6016                PackageParser.Activity a = pkg.activities.get(i);
6017                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6018                        a.info.processName, pkg.applicationInfo.uid);
6019                mActivities.addActivity(a, "activity");
6020                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6021                    if (r == null) {
6022                        r = new StringBuilder(256);
6023                    } else {
6024                        r.append(' ');
6025                    }
6026                    r.append(a.info.name);
6027                }
6028            }
6029            if (r != null) {
6030                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6031            }
6032
6033            N = pkg.permissionGroups.size();
6034            r = null;
6035            for (i=0; i<N; i++) {
6036                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6037                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6038                if (cur == null) {
6039                    mPermissionGroups.put(pg.info.name, pg);
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(pg.info.name);
6047                    }
6048                } else {
6049                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6050                            + pg.info.packageName + " ignored: original from "
6051                            + cur.info.packageName);
6052                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6053                        if (r == null) {
6054                            r = new StringBuilder(256);
6055                        } else {
6056                            r.append(' ');
6057                        }
6058                        r.append("DUP:");
6059                        r.append(pg.info.name);
6060                    }
6061                }
6062            }
6063            if (r != null) {
6064                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6065            }
6066
6067            N = pkg.permissions.size();
6068            r = null;
6069            for (i=0; i<N; i++) {
6070                PackageParser.Permission p = pkg.permissions.get(i);
6071                ArrayMap<String, BasePermission> permissionMap =
6072                        p.tree ? mSettings.mPermissionTrees
6073                        : mSettings.mPermissions;
6074                p.group = mPermissionGroups.get(p.info.group);
6075                if (p.info.group == null || p.group != null) {
6076                    BasePermission bp = permissionMap.get(p.info.name);
6077
6078                    // Allow system apps to redefine non-system permissions
6079                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6080                        final boolean currentOwnerIsSystem = (bp.perm != null
6081                                && isSystemApp(bp.perm.owner));
6082                        if (isSystemApp(p.owner)) {
6083                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6084                                // It's a built-in permission and no owner, take ownership now
6085                                bp.packageSetting = pkgSetting;
6086                                bp.perm = p;
6087                                bp.uid = pkg.applicationInfo.uid;
6088                                bp.sourcePackage = p.info.packageName;
6089                            } else if (!currentOwnerIsSystem) {
6090                                String msg = "New decl " + p.owner + " of permission  "
6091                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6092                                reportSettingsProblem(Log.WARN, msg);
6093                                bp = null;
6094                            }
6095                        }
6096                    }
6097
6098                    if (bp == null) {
6099                        bp = new BasePermission(p.info.name, p.info.packageName,
6100                                BasePermission.TYPE_NORMAL);
6101                        permissionMap.put(p.info.name, bp);
6102                    }
6103
6104                    if (bp.perm == null) {
6105                        if (bp.sourcePackage == null
6106                                || bp.sourcePackage.equals(p.info.packageName)) {
6107                            BasePermission tree = findPermissionTreeLP(p.info.name);
6108                            if (tree == null
6109                                    || tree.sourcePackage.equals(p.info.packageName)) {
6110                                bp.packageSetting = pkgSetting;
6111                                bp.perm = p;
6112                                bp.uid = pkg.applicationInfo.uid;
6113                                bp.sourcePackage = p.info.packageName;
6114                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6115                                    if (r == null) {
6116                                        r = new StringBuilder(256);
6117                                    } else {
6118                                        r.append(' ');
6119                                    }
6120                                    r.append(p.info.name);
6121                                }
6122                            } else {
6123                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6124                                        + p.info.packageName + " ignored: base tree "
6125                                        + tree.name + " is from package "
6126                                        + tree.sourcePackage);
6127                            }
6128                        } else {
6129                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6130                                    + p.info.packageName + " ignored: original from "
6131                                    + bp.sourcePackage);
6132                        }
6133                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6134                        if (r == null) {
6135                            r = new StringBuilder(256);
6136                        } else {
6137                            r.append(' ');
6138                        }
6139                        r.append("DUP:");
6140                        r.append(p.info.name);
6141                    }
6142                    if (bp.perm == p) {
6143                        bp.protectionLevel = p.info.protectionLevel;
6144                    }
6145                } else {
6146                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6147                            + p.info.packageName + " ignored: no group "
6148                            + p.group);
6149                }
6150            }
6151            if (r != null) {
6152                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6153            }
6154
6155            N = pkg.instrumentation.size();
6156            r = null;
6157            for (i=0; i<N; i++) {
6158                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6159                a.info.packageName = pkg.applicationInfo.packageName;
6160                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6161                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6162                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6163                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6164                a.info.dataDir = pkg.applicationInfo.dataDir;
6165
6166                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6167                // need other information about the application, like the ABI and what not ?
6168                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6169                mInstrumentation.put(a.getComponentName(), a);
6170                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6171                    if (r == null) {
6172                        r = new StringBuilder(256);
6173                    } else {
6174                        r.append(' ');
6175                    }
6176                    r.append(a.info.name);
6177                }
6178            }
6179            if (r != null) {
6180                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6181            }
6182
6183            if (pkg.protectedBroadcasts != null) {
6184                N = pkg.protectedBroadcasts.size();
6185                for (i=0; i<N; i++) {
6186                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6187                }
6188            }
6189
6190            pkgSetting.setTimeStamp(scanFileTime);
6191
6192            // Create idmap files for pairs of (packages, overlay packages).
6193            // Note: "android", ie framework-res.apk, is handled by native layers.
6194            if (pkg.mOverlayTarget != null) {
6195                // This is an overlay package.
6196                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6197                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6198                        mOverlays.put(pkg.mOverlayTarget,
6199                                new ArrayMap<String, PackageParser.Package>());
6200                    }
6201                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6202                    map.put(pkg.packageName, pkg);
6203                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6204                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6205                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6206                                "scanPackageLI failed to createIdmap");
6207                    }
6208                }
6209            } else if (mOverlays.containsKey(pkg.packageName) &&
6210                    !pkg.packageName.equals("android")) {
6211                // This is a regular package, with one or more known overlay packages.
6212                createIdmapsForPackageLI(pkg);
6213            }
6214        }
6215
6216        return pkg;
6217    }
6218
6219    /**
6220     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6221     * i.e, so that all packages can be run inside a single process if required.
6222     *
6223     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6224     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6225     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6226     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6227     * updating a package that belongs to a shared user.
6228     *
6229     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6230     * adds unnecessary complexity.
6231     */
6232    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6233            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6234        String requiredInstructionSet = null;
6235        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6236            requiredInstructionSet = VMRuntime.getInstructionSet(
6237                     scannedPackage.applicationInfo.primaryCpuAbi);
6238        }
6239
6240        PackageSetting requirer = null;
6241        for (PackageSetting ps : packagesForUser) {
6242            // If packagesForUser contains scannedPackage, we skip it. This will happen
6243            // when scannedPackage is an update of an existing package. Without this check,
6244            // we will never be able to change the ABI of any package belonging to a shared
6245            // user, even if it's compatible with other packages.
6246            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6247                if (ps.primaryCpuAbiString == null) {
6248                    continue;
6249                }
6250
6251                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6252                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6253                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6254                    // this but there's not much we can do.
6255                    String errorMessage = "Instruction set mismatch, "
6256                            + ((requirer == null) ? "[caller]" : requirer)
6257                            + " requires " + requiredInstructionSet + " whereas " + ps
6258                            + " requires " + instructionSet;
6259                    Slog.w(TAG, errorMessage);
6260                }
6261
6262                if (requiredInstructionSet == null) {
6263                    requiredInstructionSet = instructionSet;
6264                    requirer = ps;
6265                }
6266            }
6267        }
6268
6269        if (requiredInstructionSet != null) {
6270            String adjustedAbi;
6271            if (requirer != null) {
6272                // requirer != null implies that either scannedPackage was null or that scannedPackage
6273                // did not require an ABI, in which case we have to adjust scannedPackage to match
6274                // the ABI of the set (which is the same as requirer's ABI)
6275                adjustedAbi = requirer.primaryCpuAbiString;
6276                if (scannedPackage != null) {
6277                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6278                }
6279            } else {
6280                // requirer == null implies that we're updating all ABIs in the set to
6281                // match scannedPackage.
6282                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6283            }
6284
6285            for (PackageSetting ps : packagesForUser) {
6286                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6287                    if (ps.primaryCpuAbiString != null) {
6288                        continue;
6289                    }
6290
6291                    ps.primaryCpuAbiString = adjustedAbi;
6292                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6293                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6294                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6295
6296                        int result = mPackageDexOptimizer.performDexOpt(ps.pkg,
6297                                null /* instruction sets */, forceDexOpt, deferDexOpt, true);
6298                        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
6299                            ps.primaryCpuAbiString = null;
6300                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6301                            return;
6302                        } else {
6303                            mInstaller.rmdex(ps.codePathString,
6304                                    getDexCodeInstructionSet(getPreferredInstructionSet()));
6305                        }
6306                    }
6307                }
6308            }
6309        }
6310    }
6311
6312    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6313        synchronized (mPackages) {
6314            mResolverReplaced = true;
6315            // Set up information for custom user intent resolution activity.
6316            mResolveActivity.applicationInfo = pkg.applicationInfo;
6317            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6318            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6319            mResolveActivity.processName = pkg.applicationInfo.packageName;
6320            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6321            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6322                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6323            mResolveActivity.theme = 0;
6324            mResolveActivity.exported = true;
6325            mResolveActivity.enabled = true;
6326            mResolveInfo.activityInfo = mResolveActivity;
6327            mResolveInfo.priority = 0;
6328            mResolveInfo.preferredOrder = 0;
6329            mResolveInfo.match = 0;
6330            mResolveComponentName = mCustomResolverComponentName;
6331            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6332                    mResolveComponentName);
6333        }
6334    }
6335
6336    private static String calculateBundledApkRoot(final String codePathString) {
6337        final File codePath = new File(codePathString);
6338        final File codeRoot;
6339        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6340            codeRoot = Environment.getRootDirectory();
6341        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6342            codeRoot = Environment.getOemDirectory();
6343        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6344            codeRoot = Environment.getVendorDirectory();
6345        } else {
6346            // Unrecognized code path; take its top real segment as the apk root:
6347            // e.g. /something/app/blah.apk => /something
6348            try {
6349                File f = codePath.getCanonicalFile();
6350                File parent = f.getParentFile();    // non-null because codePath is a file
6351                File tmp;
6352                while ((tmp = parent.getParentFile()) != null) {
6353                    f = parent;
6354                    parent = tmp;
6355                }
6356                codeRoot = f;
6357                Slog.w(TAG, "Unrecognized code path "
6358                        + codePath + " - using " + codeRoot);
6359            } catch (IOException e) {
6360                // Can't canonicalize the code path -- shenanigans?
6361                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6362                return Environment.getRootDirectory().getPath();
6363            }
6364        }
6365        return codeRoot.getPath();
6366    }
6367
6368    /**
6369     * Derive and set the location of native libraries for the given package,
6370     * which varies depending on where and how the package was installed.
6371     */
6372    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6373        final ApplicationInfo info = pkg.applicationInfo;
6374        final String codePath = pkg.codePath;
6375        final File codeFile = new File(codePath);
6376        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6377        final boolean asecApp = info.isForwardLocked() || isExternal(info);
6378
6379        info.nativeLibraryRootDir = null;
6380        info.nativeLibraryRootRequiresIsa = false;
6381        info.nativeLibraryDir = null;
6382        info.secondaryNativeLibraryDir = null;
6383
6384        if (isApkFile(codeFile)) {
6385            // Monolithic install
6386            if (bundledApp) {
6387                // If "/system/lib64/apkname" exists, assume that is the per-package
6388                // native library directory to use; otherwise use "/system/lib/apkname".
6389                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6390                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6391                        getPrimaryInstructionSet(info));
6392
6393                // This is a bundled system app so choose the path based on the ABI.
6394                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6395                // is just the default path.
6396                final String apkName = deriveCodePathName(codePath);
6397                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6398                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6399                        apkName).getAbsolutePath();
6400
6401                if (info.secondaryCpuAbi != null) {
6402                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6403                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6404                            secondaryLibDir, apkName).getAbsolutePath();
6405                }
6406            } else if (asecApp) {
6407                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6408                        .getAbsolutePath();
6409            } else {
6410                final String apkName = deriveCodePathName(codePath);
6411                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6412                        .getAbsolutePath();
6413            }
6414
6415            info.nativeLibraryRootRequiresIsa = false;
6416            info.nativeLibraryDir = info.nativeLibraryRootDir;
6417        } else {
6418            // Cluster install
6419            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6420            info.nativeLibraryRootRequiresIsa = true;
6421
6422            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6423                    getPrimaryInstructionSet(info)).getAbsolutePath();
6424
6425            if (info.secondaryCpuAbi != null) {
6426                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6427                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6428            }
6429        }
6430    }
6431
6432    /**
6433     * Calculate the abis and roots for a bundled app. These can uniquely
6434     * be determined from the contents of the system partition, i.e whether
6435     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6436     * of this information, and instead assume that the system was built
6437     * sensibly.
6438     */
6439    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6440                                           PackageSetting pkgSetting) {
6441        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6442
6443        // If "/system/lib64/apkname" exists, assume that is the per-package
6444        // native library directory to use; otherwise use "/system/lib/apkname".
6445        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6446        setBundledAppAbi(pkg, apkRoot, apkName);
6447        // pkgSetting might be null during rescan following uninstall of updates
6448        // to a bundled app, so accommodate that possibility.  The settings in
6449        // that case will be established later from the parsed package.
6450        //
6451        // If the settings aren't null, sync them up with what we've just derived.
6452        // note that apkRoot isn't stored in the package settings.
6453        if (pkgSetting != null) {
6454            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6455            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6456        }
6457    }
6458
6459    /**
6460     * Deduces the ABI of a bundled app and sets the relevant fields on the
6461     * parsed pkg object.
6462     *
6463     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6464     *        under which system libraries are installed.
6465     * @param apkName the name of the installed package.
6466     */
6467    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6468        final File codeFile = new File(pkg.codePath);
6469
6470        final boolean has64BitLibs;
6471        final boolean has32BitLibs;
6472        if (isApkFile(codeFile)) {
6473            // Monolithic install
6474            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6475            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6476        } else {
6477            // Cluster install
6478            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6479            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6480                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6481                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6482                has64BitLibs = (new File(rootDir, isa)).exists();
6483            } else {
6484                has64BitLibs = false;
6485            }
6486            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6487                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6488                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6489                has32BitLibs = (new File(rootDir, isa)).exists();
6490            } else {
6491                has32BitLibs = false;
6492            }
6493        }
6494
6495        if (has64BitLibs && !has32BitLibs) {
6496            // The package has 64 bit libs, but not 32 bit libs. Its primary
6497            // ABI should be 64 bit. We can safely assume here that the bundled
6498            // native libraries correspond to the most preferred ABI in the list.
6499
6500            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6501            pkg.applicationInfo.secondaryCpuAbi = null;
6502        } else if (has32BitLibs && !has64BitLibs) {
6503            // The package has 32 bit libs but not 64 bit libs. Its primary
6504            // ABI should be 32 bit.
6505
6506            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6507            pkg.applicationInfo.secondaryCpuAbi = null;
6508        } else if (has32BitLibs && has64BitLibs) {
6509            // The application has both 64 and 32 bit bundled libraries. We check
6510            // here that the app declares multiArch support, and warn if it doesn't.
6511            //
6512            // We will be lenient here and record both ABIs. The primary will be the
6513            // ABI that's higher on the list, i.e, a device that's configured to prefer
6514            // 64 bit apps will see a 64 bit primary ABI,
6515
6516            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6517                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6518            }
6519
6520            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6521                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6522                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6523            } else {
6524                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6525                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6526            }
6527        } else {
6528            pkg.applicationInfo.primaryCpuAbi = null;
6529            pkg.applicationInfo.secondaryCpuAbi = null;
6530        }
6531    }
6532
6533    private void killApplication(String pkgName, int appId, String reason) {
6534        // Request the ActivityManager to kill the process(only for existing packages)
6535        // so that we do not end up in a confused state while the user is still using the older
6536        // version of the application while the new one gets installed.
6537        IActivityManager am = ActivityManagerNative.getDefault();
6538        if (am != null) {
6539            try {
6540                am.killApplicationWithAppId(pkgName, appId, reason);
6541            } catch (RemoteException e) {
6542            }
6543        }
6544    }
6545
6546    void removePackageLI(PackageSetting ps, boolean chatty) {
6547        if (DEBUG_INSTALL) {
6548            if (chatty)
6549                Log.d(TAG, "Removing package " + ps.name);
6550        }
6551
6552        // writer
6553        synchronized (mPackages) {
6554            mPackages.remove(ps.name);
6555            final PackageParser.Package pkg = ps.pkg;
6556            if (pkg != null) {
6557                cleanPackageDataStructuresLILPw(pkg, chatty);
6558            }
6559        }
6560    }
6561
6562    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6563        if (DEBUG_INSTALL) {
6564            if (chatty)
6565                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6566        }
6567
6568        // writer
6569        synchronized (mPackages) {
6570            mPackages.remove(pkg.applicationInfo.packageName);
6571            cleanPackageDataStructuresLILPw(pkg, chatty);
6572        }
6573    }
6574
6575    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6576        int N = pkg.providers.size();
6577        StringBuilder r = null;
6578        int i;
6579        for (i=0; i<N; i++) {
6580            PackageParser.Provider p = pkg.providers.get(i);
6581            mProviders.removeProvider(p);
6582            if (p.info.authority == null) {
6583
6584                /* There was another ContentProvider with this authority when
6585                 * this app was installed so this authority is null,
6586                 * Ignore it as we don't have to unregister the provider.
6587                 */
6588                continue;
6589            }
6590            String names[] = p.info.authority.split(";");
6591            for (int j = 0; j < names.length; j++) {
6592                if (mProvidersByAuthority.get(names[j]) == p) {
6593                    mProvidersByAuthority.remove(names[j]);
6594                    if (DEBUG_REMOVE) {
6595                        if (chatty)
6596                            Log.d(TAG, "Unregistered content provider: " + names[j]
6597                                    + ", className = " + p.info.name + ", isSyncable = "
6598                                    + p.info.isSyncable);
6599                    }
6600                }
6601            }
6602            if (DEBUG_REMOVE && chatty) {
6603                if (r == null) {
6604                    r = new StringBuilder(256);
6605                } else {
6606                    r.append(' ');
6607                }
6608                r.append(p.info.name);
6609            }
6610        }
6611        if (r != null) {
6612            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6613        }
6614
6615        N = pkg.services.size();
6616        r = null;
6617        for (i=0; i<N; i++) {
6618            PackageParser.Service s = pkg.services.get(i);
6619            mServices.removeService(s);
6620            if (chatty) {
6621                if (r == null) {
6622                    r = new StringBuilder(256);
6623                } else {
6624                    r.append(' ');
6625                }
6626                r.append(s.info.name);
6627            }
6628        }
6629        if (r != null) {
6630            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6631        }
6632
6633        N = pkg.receivers.size();
6634        r = null;
6635        for (i=0; i<N; i++) {
6636            PackageParser.Activity a = pkg.receivers.get(i);
6637            mReceivers.removeActivity(a, "receiver");
6638            if (DEBUG_REMOVE && chatty) {
6639                if (r == null) {
6640                    r = new StringBuilder(256);
6641                } else {
6642                    r.append(' ');
6643                }
6644                r.append(a.info.name);
6645            }
6646        }
6647        if (r != null) {
6648            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6649        }
6650
6651        N = pkg.activities.size();
6652        r = null;
6653        for (i=0; i<N; i++) {
6654            PackageParser.Activity a = pkg.activities.get(i);
6655            mActivities.removeActivity(a, "activity");
6656            if (DEBUG_REMOVE && chatty) {
6657                if (r == null) {
6658                    r = new StringBuilder(256);
6659                } else {
6660                    r.append(' ');
6661                }
6662                r.append(a.info.name);
6663            }
6664        }
6665        if (r != null) {
6666            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6667        }
6668
6669        N = pkg.permissions.size();
6670        r = null;
6671        for (i=0; i<N; i++) {
6672            PackageParser.Permission p = pkg.permissions.get(i);
6673            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6674            if (bp == null) {
6675                bp = mSettings.mPermissionTrees.get(p.info.name);
6676            }
6677            if (bp != null && bp.perm == p) {
6678                bp.perm = null;
6679                if (DEBUG_REMOVE && chatty) {
6680                    if (r == null) {
6681                        r = new StringBuilder(256);
6682                    } else {
6683                        r.append(' ');
6684                    }
6685                    r.append(p.info.name);
6686                }
6687            }
6688            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6689                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6690                if (appOpPerms != null) {
6691                    appOpPerms.remove(pkg.packageName);
6692                }
6693            }
6694        }
6695        if (r != null) {
6696            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6697        }
6698
6699        N = pkg.requestedPermissions.size();
6700        r = null;
6701        for (i=0; i<N; i++) {
6702            String perm = pkg.requestedPermissions.get(i);
6703            BasePermission bp = mSettings.mPermissions.get(perm);
6704            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6705                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6706                if (appOpPerms != null) {
6707                    appOpPerms.remove(pkg.packageName);
6708                    if (appOpPerms.isEmpty()) {
6709                        mAppOpPermissionPackages.remove(perm);
6710                    }
6711                }
6712            }
6713        }
6714        if (r != null) {
6715            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6716        }
6717
6718        N = pkg.instrumentation.size();
6719        r = null;
6720        for (i=0; i<N; i++) {
6721            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6722            mInstrumentation.remove(a.getComponentName());
6723            if (DEBUG_REMOVE && chatty) {
6724                if (r == null) {
6725                    r = new StringBuilder(256);
6726                } else {
6727                    r.append(' ');
6728                }
6729                r.append(a.info.name);
6730            }
6731        }
6732        if (r != null) {
6733            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6734        }
6735
6736        r = null;
6737        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6738            // Only system apps can hold shared libraries.
6739            if (pkg.libraryNames != null) {
6740                for (i=0; i<pkg.libraryNames.size(); i++) {
6741                    String name = pkg.libraryNames.get(i);
6742                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6743                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6744                        mSharedLibraries.remove(name);
6745                        if (DEBUG_REMOVE && chatty) {
6746                            if (r == null) {
6747                                r = new StringBuilder(256);
6748                            } else {
6749                                r.append(' ');
6750                            }
6751                            r.append(name);
6752                        }
6753                    }
6754                }
6755            }
6756        }
6757        if (r != null) {
6758            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6759        }
6760    }
6761
6762    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6763        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6764            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6765                return true;
6766            }
6767        }
6768        return false;
6769    }
6770
6771    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6772    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6773    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6774
6775    private void updatePermissionsLPw(String changingPkg,
6776            PackageParser.Package pkgInfo, int flags) {
6777        // Make sure there are no dangling permission trees.
6778        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6779        while (it.hasNext()) {
6780            final BasePermission bp = it.next();
6781            if (bp.packageSetting == null) {
6782                // We may not yet have parsed the package, so just see if
6783                // we still know about its settings.
6784                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6785            }
6786            if (bp.packageSetting == null) {
6787                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6788                        + " from package " + bp.sourcePackage);
6789                it.remove();
6790            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6791                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6792                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6793                            + " from package " + bp.sourcePackage);
6794                    flags |= UPDATE_PERMISSIONS_ALL;
6795                    it.remove();
6796                }
6797            }
6798        }
6799
6800        // Make sure all dynamic permissions have been assigned to a package,
6801        // and make sure there are no dangling permissions.
6802        it = mSettings.mPermissions.values().iterator();
6803        while (it.hasNext()) {
6804            final BasePermission bp = it.next();
6805            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6806                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6807                        + bp.name + " pkg=" + bp.sourcePackage
6808                        + " info=" + bp.pendingInfo);
6809                if (bp.packageSetting == null && bp.pendingInfo != null) {
6810                    final BasePermission tree = findPermissionTreeLP(bp.name);
6811                    if (tree != null && tree.perm != null) {
6812                        bp.packageSetting = tree.packageSetting;
6813                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6814                                new PermissionInfo(bp.pendingInfo));
6815                        bp.perm.info.packageName = tree.perm.info.packageName;
6816                        bp.perm.info.name = bp.name;
6817                        bp.uid = tree.uid;
6818                    }
6819                }
6820            }
6821            if (bp.packageSetting == null) {
6822                // We may not yet have parsed the package, so just see if
6823                // we still know about its settings.
6824                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6825            }
6826            if (bp.packageSetting == null) {
6827                Slog.w(TAG, "Removing dangling permission: " + bp.name
6828                        + " from package " + bp.sourcePackage);
6829                it.remove();
6830            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6831                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6832                    Slog.i(TAG, "Removing old permission: " + bp.name
6833                            + " from package " + bp.sourcePackage);
6834                    flags |= UPDATE_PERMISSIONS_ALL;
6835                    it.remove();
6836                }
6837            }
6838        }
6839
6840        // Now update the permissions for all packages, in particular
6841        // replace the granted permissions of the system packages.
6842        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6843            for (PackageParser.Package pkg : mPackages.values()) {
6844                if (pkg != pkgInfo) {
6845                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6846                            changingPkg);
6847                }
6848            }
6849        }
6850
6851        if (pkgInfo != null) {
6852            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6853        }
6854    }
6855
6856    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6857            String packageOfInterest) {
6858        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6859        if (ps == null) {
6860            return;
6861        }
6862        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6863        ArraySet<String> origPermissions = gp.grantedPermissions;
6864        boolean changedPermission = false;
6865
6866        if (replace) {
6867            ps.permissionsFixed = false;
6868            if (gp == ps) {
6869                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6870                gp.grantedPermissions.clear();
6871                gp.gids = mGlobalGids;
6872            }
6873        }
6874
6875        if (gp.gids == null) {
6876            gp.gids = mGlobalGids;
6877        }
6878
6879        final int N = pkg.requestedPermissions.size();
6880        for (int i=0; i<N; i++) {
6881            final String name = pkg.requestedPermissions.get(i);
6882            final boolean required = pkg.requestedPermissionsRequired.get(i);
6883            final BasePermission bp = mSettings.mPermissions.get(name);
6884            if (DEBUG_INSTALL) {
6885                if (gp != ps) {
6886                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6887                }
6888            }
6889
6890            if (bp == null || bp.packageSetting == null) {
6891                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6892                    Slog.w(TAG, "Unknown permission " + name
6893                            + " in package " + pkg.packageName);
6894                }
6895                continue;
6896            }
6897
6898            final String perm = bp.name;
6899            boolean allowed;
6900            boolean allowedSig = false;
6901            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6902                // Keep track of app op permissions.
6903                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6904                if (pkgs == null) {
6905                    pkgs = new ArraySet<>();
6906                    mAppOpPermissionPackages.put(bp.name, pkgs);
6907                }
6908                pkgs.add(pkg.packageName);
6909            }
6910            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6911            if (level == PermissionInfo.PROTECTION_NORMAL
6912                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6913                // We grant a normal or dangerous permission if any of the following
6914                // are true:
6915                // 1) The permission is required
6916                // 2) The permission is optional, but was granted in the past
6917                // 3) The permission is optional, but was requested by an
6918                //    app in /system (not /data)
6919                //
6920                // Otherwise, reject the permission.
6921                allowed = (required || origPermissions.contains(perm)
6922                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6923            } else if (bp.packageSetting == null) {
6924                // This permission is invalid; skip it.
6925                allowed = false;
6926            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
6927                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
6928                if (allowed) {
6929                    allowedSig = true;
6930                }
6931            } else {
6932                allowed = false;
6933            }
6934            if (DEBUG_INSTALL) {
6935                if (gp != ps) {
6936                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
6937                }
6938            }
6939            if (allowed) {
6940                if (!isSystemApp(ps) && ps.permissionsFixed) {
6941                    // If this is an existing, non-system package, then
6942                    // we can't add any new permissions to it.
6943                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
6944                        // Except...  if this is a permission that was added
6945                        // to the platform (note: need to only do this when
6946                        // updating the platform).
6947                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
6948                    }
6949                }
6950                if (allowed) {
6951                    if (!gp.grantedPermissions.contains(perm)) {
6952                        changedPermission = true;
6953                        gp.grantedPermissions.add(perm);
6954                        gp.gids = appendInts(gp.gids, bp.gids);
6955                    } else if (!ps.haveGids) {
6956                        gp.gids = appendInts(gp.gids, bp.gids);
6957                    }
6958                } else {
6959                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6960                        Slog.w(TAG, "Not granting permission " + perm
6961                                + " to package " + pkg.packageName
6962                                + " because it was previously installed without");
6963                    }
6964                }
6965            } else {
6966                if (gp.grantedPermissions.remove(perm)) {
6967                    changedPermission = true;
6968                    gp.gids = removeInts(gp.gids, bp.gids);
6969                    Slog.i(TAG, "Un-granting permission " + perm
6970                            + " from package " + pkg.packageName
6971                            + " (protectionLevel=" + bp.protectionLevel
6972                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6973                            + ")");
6974                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
6975                    // Don't print warning for app op permissions, since it is fine for them
6976                    // not to be granted, there is a UI for the user to decide.
6977                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6978                        Slog.w(TAG, "Not granting permission " + perm
6979                                + " to package " + pkg.packageName
6980                                + " (protectionLevel=" + bp.protectionLevel
6981                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6982                                + ")");
6983                    }
6984                }
6985            }
6986        }
6987
6988        if ((changedPermission || replace) && !ps.permissionsFixed &&
6989                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
6990            // This is the first that we have heard about this package, so the
6991            // permissions we have now selected are fixed until explicitly
6992            // changed.
6993            ps.permissionsFixed = true;
6994        }
6995        ps.haveGids = true;
6996    }
6997
6998    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
6999        boolean allowed = false;
7000        final int NP = PackageParser.NEW_PERMISSIONS.length;
7001        for (int ip=0; ip<NP; ip++) {
7002            final PackageParser.NewPermissionInfo npi
7003                    = PackageParser.NEW_PERMISSIONS[ip];
7004            if (npi.name.equals(perm)
7005                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7006                allowed = true;
7007                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7008                        + pkg.packageName);
7009                break;
7010            }
7011        }
7012        return allowed;
7013    }
7014
7015    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7016                                          BasePermission bp, ArraySet<String> origPermissions) {
7017        boolean allowed;
7018        allowed = (compareSignatures(
7019                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7020                        == PackageManager.SIGNATURE_MATCH)
7021                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7022                        == PackageManager.SIGNATURE_MATCH);
7023        if (!allowed && (bp.protectionLevel
7024                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7025            if (isSystemApp(pkg)) {
7026                // For updated system applications, a system permission
7027                // is granted only if it had been defined by the original application.
7028                if (isUpdatedSystemApp(pkg)) {
7029                    final PackageSetting sysPs = mSettings
7030                            .getDisabledSystemPkgLPr(pkg.packageName);
7031                    final GrantedPermissions origGp = sysPs.sharedUser != null
7032                            ? sysPs.sharedUser : sysPs;
7033
7034                    if (origGp.grantedPermissions.contains(perm)) {
7035                        // If the original was granted this permission, we take
7036                        // that grant decision as read and propagate it to the
7037                        // update.
7038                        if (sysPs.isPrivileged()) {
7039                            allowed = true;
7040                        }
7041                    } else {
7042                        // The system apk may have been updated with an older
7043                        // version of the one on the data partition, but which
7044                        // granted a new system permission that it didn't have
7045                        // before.  In this case we do want to allow the app to
7046                        // now get the new permission if the ancestral apk is
7047                        // privileged to get it.
7048                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7049                            for (int j=0;
7050                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7051                                if (perm.equals(
7052                                        sysPs.pkg.requestedPermissions.get(j))) {
7053                                    allowed = true;
7054                                    break;
7055                                }
7056                            }
7057                        }
7058                    }
7059                } else {
7060                    allowed = isPrivilegedApp(pkg);
7061                }
7062            }
7063        }
7064        if (!allowed && (bp.protectionLevel
7065                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7066            // For development permissions, a development permission
7067            // is granted only if it was already granted.
7068            allowed = origPermissions.contains(perm);
7069        }
7070        return allowed;
7071    }
7072
7073    final class ActivityIntentResolver
7074            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7075        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7076                boolean defaultOnly, int userId) {
7077            if (!sUserManager.exists(userId)) return null;
7078            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7079            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7080        }
7081
7082        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7083                int userId) {
7084            if (!sUserManager.exists(userId)) return null;
7085            mFlags = flags;
7086            return super.queryIntent(intent, resolvedType,
7087                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7088        }
7089
7090        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7091                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7092            if (!sUserManager.exists(userId)) return null;
7093            if (packageActivities == null) {
7094                return null;
7095            }
7096            mFlags = flags;
7097            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7098            final int N = packageActivities.size();
7099            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7100                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7101
7102            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7103            for (int i = 0; i < N; ++i) {
7104                intentFilters = packageActivities.get(i).intents;
7105                if (intentFilters != null && intentFilters.size() > 0) {
7106                    PackageParser.ActivityIntentInfo[] array =
7107                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7108                    intentFilters.toArray(array);
7109                    listCut.add(array);
7110                }
7111            }
7112            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7113        }
7114
7115        public final void addActivity(PackageParser.Activity a, String type) {
7116            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7117            mActivities.put(a.getComponentName(), a);
7118            if (DEBUG_SHOW_INFO)
7119                Log.v(
7120                TAG, "  " + type + " " +
7121                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7122            if (DEBUG_SHOW_INFO)
7123                Log.v(TAG, "    Class=" + a.info.name);
7124            final int NI = a.intents.size();
7125            for (int j=0; j<NI; j++) {
7126                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7127                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7128                    intent.setPriority(0);
7129                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7130                            + a.className + " with priority > 0, forcing to 0");
7131                }
7132                if (DEBUG_SHOW_INFO) {
7133                    Log.v(TAG, "    IntentFilter:");
7134                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7135                }
7136                if (!intent.debugCheck()) {
7137                    Log.w(TAG, "==> For Activity " + a.info.name);
7138                }
7139                addFilter(intent);
7140            }
7141        }
7142
7143        public final void removeActivity(PackageParser.Activity a, String type) {
7144            mActivities.remove(a.getComponentName());
7145            if (DEBUG_SHOW_INFO) {
7146                Log.v(TAG, "  " + type + " "
7147                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7148                                : a.info.name) + ":");
7149                Log.v(TAG, "    Class=" + a.info.name);
7150            }
7151            final int NI = a.intents.size();
7152            for (int j=0; j<NI; j++) {
7153                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7154                if (DEBUG_SHOW_INFO) {
7155                    Log.v(TAG, "    IntentFilter:");
7156                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7157                }
7158                removeFilter(intent);
7159            }
7160        }
7161
7162        @Override
7163        protected boolean allowFilterResult(
7164                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7165            ActivityInfo filterAi = filter.activity.info;
7166            for (int i=dest.size()-1; i>=0; i--) {
7167                ActivityInfo destAi = dest.get(i).activityInfo;
7168                if (destAi.name == filterAi.name
7169                        && destAi.packageName == filterAi.packageName) {
7170                    return false;
7171                }
7172            }
7173            return true;
7174        }
7175
7176        @Override
7177        protected ActivityIntentInfo[] newArray(int size) {
7178            return new ActivityIntentInfo[size];
7179        }
7180
7181        @Override
7182        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7183            if (!sUserManager.exists(userId)) return true;
7184            PackageParser.Package p = filter.activity.owner;
7185            if (p != null) {
7186                PackageSetting ps = (PackageSetting)p.mExtras;
7187                if (ps != null) {
7188                    // System apps are never considered stopped for purposes of
7189                    // filtering, because there may be no way for the user to
7190                    // actually re-launch them.
7191                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7192                            && ps.getStopped(userId);
7193                }
7194            }
7195            return false;
7196        }
7197
7198        @Override
7199        protected boolean isPackageForFilter(String packageName,
7200                PackageParser.ActivityIntentInfo info) {
7201            return packageName.equals(info.activity.owner.packageName);
7202        }
7203
7204        @Override
7205        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7206                int match, int userId) {
7207            if (!sUserManager.exists(userId)) return null;
7208            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7209                return null;
7210            }
7211            final PackageParser.Activity activity = info.activity;
7212            if (mSafeMode && (activity.info.applicationInfo.flags
7213                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7214                return null;
7215            }
7216            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7217            if (ps == null) {
7218                return null;
7219            }
7220            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7221                    ps.readUserState(userId), userId);
7222            if (ai == null) {
7223                return null;
7224            }
7225            final ResolveInfo res = new ResolveInfo();
7226            res.activityInfo = ai;
7227            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7228                res.filter = info;
7229            }
7230            res.priority = info.getPriority();
7231            res.preferredOrder = activity.owner.mPreferredOrder;
7232            //System.out.println("Result: " + res.activityInfo.className +
7233            //                   " = " + res.priority);
7234            res.match = match;
7235            res.isDefault = info.hasDefault;
7236            res.labelRes = info.labelRes;
7237            res.nonLocalizedLabel = info.nonLocalizedLabel;
7238            if (userNeedsBadging(userId)) {
7239                res.noResourceId = true;
7240            } else {
7241                res.icon = info.icon;
7242            }
7243            res.system = isSystemApp(res.activityInfo.applicationInfo);
7244            return res;
7245        }
7246
7247        @Override
7248        protected void sortResults(List<ResolveInfo> results) {
7249            Collections.sort(results, mResolvePrioritySorter);
7250        }
7251
7252        @Override
7253        protected void dumpFilter(PrintWriter out, String prefix,
7254                PackageParser.ActivityIntentInfo filter) {
7255            out.print(prefix); out.print(
7256                    Integer.toHexString(System.identityHashCode(filter.activity)));
7257                    out.print(' ');
7258                    filter.activity.printComponentShortName(out);
7259                    out.print(" filter ");
7260                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7261        }
7262
7263        @Override
7264        protected Object filterToLabel(PackageParser.ActivityIntentInfo filter) {
7265            return filter.activity;
7266        }
7267
7268        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7269            PackageParser.Activity activity = (PackageParser.Activity)label;
7270            out.print(prefix); out.print(
7271                    Integer.toHexString(System.identityHashCode(activity)));
7272                    out.print(' ');
7273                    activity.printComponentShortName(out);
7274            if (count > 1) {
7275                out.print(" ("); out.print(count); out.print(" filters)");
7276            }
7277            out.println();
7278        }
7279
7280//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7281//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7282//            final List<ResolveInfo> retList = Lists.newArrayList();
7283//            while (i.hasNext()) {
7284//                final ResolveInfo resolveInfo = i.next();
7285//                if (isEnabledLP(resolveInfo.activityInfo)) {
7286//                    retList.add(resolveInfo);
7287//                }
7288//            }
7289//            return retList;
7290//        }
7291
7292        // Keys are String (activity class name), values are Activity.
7293        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7294                = new ArrayMap<ComponentName, PackageParser.Activity>();
7295        private int mFlags;
7296    }
7297
7298    private final class ServiceIntentResolver
7299            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7300        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7301                boolean defaultOnly, int userId) {
7302            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7303            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7304        }
7305
7306        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7307                int userId) {
7308            if (!sUserManager.exists(userId)) return null;
7309            mFlags = flags;
7310            return super.queryIntent(intent, resolvedType,
7311                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7312        }
7313
7314        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7315                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7316            if (!sUserManager.exists(userId)) return null;
7317            if (packageServices == null) {
7318                return null;
7319            }
7320            mFlags = flags;
7321            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7322            final int N = packageServices.size();
7323            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7324                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7325
7326            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7327            for (int i = 0; i < N; ++i) {
7328                intentFilters = packageServices.get(i).intents;
7329                if (intentFilters != null && intentFilters.size() > 0) {
7330                    PackageParser.ServiceIntentInfo[] array =
7331                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7332                    intentFilters.toArray(array);
7333                    listCut.add(array);
7334                }
7335            }
7336            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7337        }
7338
7339        public final void addService(PackageParser.Service s) {
7340            mServices.put(s.getComponentName(), s);
7341            if (DEBUG_SHOW_INFO) {
7342                Log.v(TAG, "  "
7343                        + (s.info.nonLocalizedLabel != null
7344                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7345                Log.v(TAG, "    Class=" + s.info.name);
7346            }
7347            final int NI = s.intents.size();
7348            int j;
7349            for (j=0; j<NI; j++) {
7350                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7351                if (DEBUG_SHOW_INFO) {
7352                    Log.v(TAG, "    IntentFilter:");
7353                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7354                }
7355                if (!intent.debugCheck()) {
7356                    Log.w(TAG, "==> For Service " + s.info.name);
7357                }
7358                addFilter(intent);
7359            }
7360        }
7361
7362        public final void removeService(PackageParser.Service s) {
7363            mServices.remove(s.getComponentName());
7364            if (DEBUG_SHOW_INFO) {
7365                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7366                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7367                Log.v(TAG, "    Class=" + s.info.name);
7368            }
7369            final int NI = s.intents.size();
7370            int j;
7371            for (j=0; j<NI; j++) {
7372                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7373                if (DEBUG_SHOW_INFO) {
7374                    Log.v(TAG, "    IntentFilter:");
7375                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7376                }
7377                removeFilter(intent);
7378            }
7379        }
7380
7381        @Override
7382        protected boolean allowFilterResult(
7383                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7384            ServiceInfo filterSi = filter.service.info;
7385            for (int i=dest.size()-1; i>=0; i--) {
7386                ServiceInfo destAi = dest.get(i).serviceInfo;
7387                if (destAi.name == filterSi.name
7388                        && destAi.packageName == filterSi.packageName) {
7389                    return false;
7390                }
7391            }
7392            return true;
7393        }
7394
7395        @Override
7396        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7397            return new PackageParser.ServiceIntentInfo[size];
7398        }
7399
7400        @Override
7401        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7402            if (!sUserManager.exists(userId)) return true;
7403            PackageParser.Package p = filter.service.owner;
7404            if (p != null) {
7405                PackageSetting ps = (PackageSetting)p.mExtras;
7406                if (ps != null) {
7407                    // System apps are never considered stopped for purposes of
7408                    // filtering, because there may be no way for the user to
7409                    // actually re-launch them.
7410                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7411                            && ps.getStopped(userId);
7412                }
7413            }
7414            return false;
7415        }
7416
7417        @Override
7418        protected boolean isPackageForFilter(String packageName,
7419                PackageParser.ServiceIntentInfo info) {
7420            return packageName.equals(info.service.owner.packageName);
7421        }
7422
7423        @Override
7424        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7425                int match, int userId) {
7426            if (!sUserManager.exists(userId)) return null;
7427            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7428            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7429                return null;
7430            }
7431            final PackageParser.Service service = info.service;
7432            if (mSafeMode && (service.info.applicationInfo.flags
7433                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7434                return null;
7435            }
7436            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7437            if (ps == null) {
7438                return null;
7439            }
7440            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7441                    ps.readUserState(userId), userId);
7442            if (si == null) {
7443                return null;
7444            }
7445            final ResolveInfo res = new ResolveInfo();
7446            res.serviceInfo = si;
7447            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7448                res.filter = filter;
7449            }
7450            res.priority = info.getPriority();
7451            res.preferredOrder = service.owner.mPreferredOrder;
7452            //System.out.println("Result: " + res.activityInfo.className +
7453            //                   " = " + res.priority);
7454            res.match = match;
7455            res.isDefault = info.hasDefault;
7456            res.labelRes = info.labelRes;
7457            res.nonLocalizedLabel = info.nonLocalizedLabel;
7458            res.icon = info.icon;
7459            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7460            return res;
7461        }
7462
7463        @Override
7464        protected void sortResults(List<ResolveInfo> results) {
7465            Collections.sort(results, mResolvePrioritySorter);
7466        }
7467
7468        @Override
7469        protected void dumpFilter(PrintWriter out, String prefix,
7470                PackageParser.ServiceIntentInfo filter) {
7471            out.print(prefix); out.print(
7472                    Integer.toHexString(System.identityHashCode(filter.service)));
7473                    out.print(' ');
7474                    filter.service.printComponentShortName(out);
7475                    out.print(" filter ");
7476                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7477        }
7478
7479        @Override
7480        protected Object filterToLabel(PackageParser.ServiceIntentInfo filter) {
7481            return filter.service;
7482        }
7483
7484        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7485            PackageParser.Service service = (PackageParser.Service)label;
7486            out.print(prefix); out.print(
7487                    Integer.toHexString(System.identityHashCode(service)));
7488                    out.print(' ');
7489                    service.printComponentShortName(out);
7490            if (count > 1) {
7491                out.print(" ("); out.print(count); out.print(" filters)");
7492            }
7493            out.println();
7494        }
7495
7496//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7497//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7498//            final List<ResolveInfo> retList = Lists.newArrayList();
7499//            while (i.hasNext()) {
7500//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7501//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7502//                    retList.add(resolveInfo);
7503//                }
7504//            }
7505//            return retList;
7506//        }
7507
7508        // Keys are String (activity class name), values are Activity.
7509        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7510                = new ArrayMap<ComponentName, PackageParser.Service>();
7511        private int mFlags;
7512    };
7513
7514    private final class ProviderIntentResolver
7515            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7516        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7517                boolean defaultOnly, int userId) {
7518            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7519            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7520        }
7521
7522        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7523                int userId) {
7524            if (!sUserManager.exists(userId))
7525                return null;
7526            mFlags = flags;
7527            return super.queryIntent(intent, resolvedType,
7528                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7529        }
7530
7531        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7532                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7533            if (!sUserManager.exists(userId))
7534                return null;
7535            if (packageProviders == null) {
7536                return null;
7537            }
7538            mFlags = flags;
7539            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7540            final int N = packageProviders.size();
7541            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7542                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7543
7544            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7545            for (int i = 0; i < N; ++i) {
7546                intentFilters = packageProviders.get(i).intents;
7547                if (intentFilters != null && intentFilters.size() > 0) {
7548                    PackageParser.ProviderIntentInfo[] array =
7549                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7550                    intentFilters.toArray(array);
7551                    listCut.add(array);
7552                }
7553            }
7554            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7555        }
7556
7557        public final void addProvider(PackageParser.Provider p) {
7558            if (mProviders.containsKey(p.getComponentName())) {
7559                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7560                return;
7561            }
7562
7563            mProviders.put(p.getComponentName(), p);
7564            if (DEBUG_SHOW_INFO) {
7565                Log.v(TAG, "  "
7566                        + (p.info.nonLocalizedLabel != null
7567                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7568                Log.v(TAG, "    Class=" + p.info.name);
7569            }
7570            final int NI = p.intents.size();
7571            int j;
7572            for (j = 0; j < NI; j++) {
7573                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7574                if (DEBUG_SHOW_INFO) {
7575                    Log.v(TAG, "    IntentFilter:");
7576                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7577                }
7578                if (!intent.debugCheck()) {
7579                    Log.w(TAG, "==> For Provider " + p.info.name);
7580                }
7581                addFilter(intent);
7582            }
7583        }
7584
7585        public final void removeProvider(PackageParser.Provider p) {
7586            mProviders.remove(p.getComponentName());
7587            if (DEBUG_SHOW_INFO) {
7588                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7589                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7590                Log.v(TAG, "    Class=" + p.info.name);
7591            }
7592            final int NI = p.intents.size();
7593            int j;
7594            for (j = 0; j < NI; j++) {
7595                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7596                if (DEBUG_SHOW_INFO) {
7597                    Log.v(TAG, "    IntentFilter:");
7598                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7599                }
7600                removeFilter(intent);
7601            }
7602        }
7603
7604        @Override
7605        protected boolean allowFilterResult(
7606                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7607            ProviderInfo filterPi = filter.provider.info;
7608            for (int i = dest.size() - 1; i >= 0; i--) {
7609                ProviderInfo destPi = dest.get(i).providerInfo;
7610                if (destPi.name == filterPi.name
7611                        && destPi.packageName == filterPi.packageName) {
7612                    return false;
7613                }
7614            }
7615            return true;
7616        }
7617
7618        @Override
7619        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7620            return new PackageParser.ProviderIntentInfo[size];
7621        }
7622
7623        @Override
7624        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7625            if (!sUserManager.exists(userId))
7626                return true;
7627            PackageParser.Package p = filter.provider.owner;
7628            if (p != null) {
7629                PackageSetting ps = (PackageSetting) p.mExtras;
7630                if (ps != null) {
7631                    // System apps are never considered stopped for purposes of
7632                    // filtering, because there may be no way for the user to
7633                    // actually re-launch them.
7634                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7635                            && ps.getStopped(userId);
7636                }
7637            }
7638            return false;
7639        }
7640
7641        @Override
7642        protected boolean isPackageForFilter(String packageName,
7643                PackageParser.ProviderIntentInfo info) {
7644            return packageName.equals(info.provider.owner.packageName);
7645        }
7646
7647        @Override
7648        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7649                int match, int userId) {
7650            if (!sUserManager.exists(userId))
7651                return null;
7652            final PackageParser.ProviderIntentInfo info = filter;
7653            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7654                return null;
7655            }
7656            final PackageParser.Provider provider = info.provider;
7657            if (mSafeMode && (provider.info.applicationInfo.flags
7658                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7659                return null;
7660            }
7661            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7662            if (ps == null) {
7663                return null;
7664            }
7665            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7666                    ps.readUserState(userId), userId);
7667            if (pi == null) {
7668                return null;
7669            }
7670            final ResolveInfo res = new ResolveInfo();
7671            res.providerInfo = pi;
7672            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7673                res.filter = filter;
7674            }
7675            res.priority = info.getPriority();
7676            res.preferredOrder = provider.owner.mPreferredOrder;
7677            res.match = match;
7678            res.isDefault = info.hasDefault;
7679            res.labelRes = info.labelRes;
7680            res.nonLocalizedLabel = info.nonLocalizedLabel;
7681            res.icon = info.icon;
7682            res.system = isSystemApp(res.providerInfo.applicationInfo);
7683            return res;
7684        }
7685
7686        @Override
7687        protected void sortResults(List<ResolveInfo> results) {
7688            Collections.sort(results, mResolvePrioritySorter);
7689        }
7690
7691        @Override
7692        protected void dumpFilter(PrintWriter out, String prefix,
7693                PackageParser.ProviderIntentInfo filter) {
7694            out.print(prefix);
7695            out.print(
7696                    Integer.toHexString(System.identityHashCode(filter.provider)));
7697            out.print(' ');
7698            filter.provider.printComponentShortName(out);
7699            out.print(" filter ");
7700            out.println(Integer.toHexString(System.identityHashCode(filter)));
7701        }
7702
7703        @Override
7704        protected Object filterToLabel(PackageParser.ProviderIntentInfo filter) {
7705            return filter.provider;
7706        }
7707
7708        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7709            PackageParser.Provider provider = (PackageParser.Provider)label;
7710            out.print(prefix); out.print(
7711                    Integer.toHexString(System.identityHashCode(provider)));
7712                    out.print(' ');
7713                    provider.printComponentShortName(out);
7714            if (count > 1) {
7715                out.print(" ("); out.print(count); out.print(" filters)");
7716            }
7717            out.println();
7718        }
7719
7720        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7721                = new ArrayMap<ComponentName, PackageParser.Provider>();
7722        private int mFlags;
7723    };
7724
7725    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7726            new Comparator<ResolveInfo>() {
7727        public int compare(ResolveInfo r1, ResolveInfo r2) {
7728            int v1 = r1.priority;
7729            int v2 = r2.priority;
7730            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7731            if (v1 != v2) {
7732                return (v1 > v2) ? -1 : 1;
7733            }
7734            v1 = r1.preferredOrder;
7735            v2 = r2.preferredOrder;
7736            if (v1 != v2) {
7737                return (v1 > v2) ? -1 : 1;
7738            }
7739            if (r1.isDefault != r2.isDefault) {
7740                return r1.isDefault ? -1 : 1;
7741            }
7742            v1 = r1.match;
7743            v2 = r2.match;
7744            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7745            if (v1 != v2) {
7746                return (v1 > v2) ? -1 : 1;
7747            }
7748            if (r1.system != r2.system) {
7749                return r1.system ? -1 : 1;
7750            }
7751            return 0;
7752        }
7753    };
7754
7755    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7756            new Comparator<ProviderInfo>() {
7757        public int compare(ProviderInfo p1, ProviderInfo p2) {
7758            final int v1 = p1.initOrder;
7759            final int v2 = p2.initOrder;
7760            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7761        }
7762    };
7763
7764    static final void sendPackageBroadcast(String action, String pkg,
7765            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7766            int[] userIds) {
7767        IActivityManager am = ActivityManagerNative.getDefault();
7768        if (am != null) {
7769            try {
7770                if (userIds == null) {
7771                    userIds = am.getRunningUserIds();
7772                }
7773                for (int id : userIds) {
7774                    final Intent intent = new Intent(action,
7775                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7776                    if (extras != null) {
7777                        intent.putExtras(extras);
7778                    }
7779                    if (targetPkg != null) {
7780                        intent.setPackage(targetPkg);
7781                    }
7782                    // Modify the UID when posting to other users
7783                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7784                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7785                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7786                        intent.putExtra(Intent.EXTRA_UID, uid);
7787                    }
7788                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7789                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7790                    if (DEBUG_BROADCASTS) {
7791                        RuntimeException here = new RuntimeException("here");
7792                        here.fillInStackTrace();
7793                        Slog.d(TAG, "Sending to user " + id + ": "
7794                                + intent.toShortString(false, true, false, false)
7795                                + " " + intent.getExtras(), here);
7796                    }
7797                    am.broadcastIntent(null, intent, null, finishedReceiver,
7798                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7799                            finishedReceiver != null, false, id);
7800                }
7801            } catch (RemoteException ex) {
7802            }
7803        }
7804    }
7805
7806    /**
7807     * Check if the external storage media is available. This is true if there
7808     * is a mounted external storage medium or if the external storage is
7809     * emulated.
7810     */
7811    private boolean isExternalMediaAvailable() {
7812        return mMediaMounted || Environment.isExternalStorageEmulated();
7813    }
7814
7815    @Override
7816    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7817        // writer
7818        synchronized (mPackages) {
7819            if (!isExternalMediaAvailable()) {
7820                // If the external storage is no longer mounted at this point,
7821                // the caller may not have been able to delete all of this
7822                // packages files and can not delete any more.  Bail.
7823                return null;
7824            }
7825            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7826            if (lastPackage != null) {
7827                pkgs.remove(lastPackage);
7828            }
7829            if (pkgs.size() > 0) {
7830                return pkgs.get(0);
7831            }
7832        }
7833        return null;
7834    }
7835
7836    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7837        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7838                userId, andCode ? 1 : 0, packageName);
7839        if (mSystemReady) {
7840            msg.sendToTarget();
7841        } else {
7842            if (mPostSystemReadyMessages == null) {
7843                mPostSystemReadyMessages = new ArrayList<>();
7844            }
7845            mPostSystemReadyMessages.add(msg);
7846        }
7847    }
7848
7849    void startCleaningPackages() {
7850        // reader
7851        synchronized (mPackages) {
7852            if (!isExternalMediaAvailable()) {
7853                return;
7854            }
7855            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7856                return;
7857            }
7858        }
7859        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7860        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7861        IActivityManager am = ActivityManagerNative.getDefault();
7862        if (am != null) {
7863            try {
7864                am.startService(null, intent, null, UserHandle.USER_OWNER);
7865            } catch (RemoteException e) {
7866            }
7867        }
7868    }
7869
7870    @Override
7871    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7872            int installFlags, String installerPackageName, VerificationParams verificationParams,
7873            String packageAbiOverride) {
7874        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7875                packageAbiOverride, UserHandle.getCallingUserId());
7876    }
7877
7878    @Override
7879    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7880            int installFlags, String installerPackageName, VerificationParams verificationParams,
7881            String packageAbiOverride, int userId) {
7882        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7883
7884        final int callingUid = Binder.getCallingUid();
7885        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7886
7887        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7888            try {
7889                if (observer != null) {
7890                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7891                }
7892            } catch (RemoteException re) {
7893            }
7894            return;
7895        }
7896
7897        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7898            installFlags |= PackageManager.INSTALL_FROM_ADB;
7899
7900        } else {
7901            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7902            // about installerPackageName.
7903
7904            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7905            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7906        }
7907
7908        UserHandle user;
7909        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7910            user = UserHandle.ALL;
7911        } else {
7912            user = new UserHandle(userId);
7913        }
7914
7915        verificationParams.setInstallerUid(callingUid);
7916
7917        final File originFile = new File(originPath);
7918        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7919
7920        final Message msg = mHandler.obtainMessage(INIT_COPY);
7921        msg.obj = new InstallParams(origin, observer, installFlags,
7922                installerPackageName, verificationParams, user, packageAbiOverride);
7923        mHandler.sendMessage(msg);
7924    }
7925
7926    void installStage(String packageName, File stagedDir, String stagedCid,
7927            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7928            String installerPackageName, int installerUid, UserHandle user) {
7929        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7930                params.referrerUri, installerUid, null);
7931
7932        final OriginInfo origin;
7933        if (stagedDir != null) {
7934            origin = OriginInfo.fromStagedFile(stagedDir);
7935        } else {
7936            origin = OriginInfo.fromStagedContainer(stagedCid);
7937        }
7938
7939        final Message msg = mHandler.obtainMessage(INIT_COPY);
7940        msg.obj = new InstallParams(origin, observer, params.installFlags,
7941                installerPackageName, verifParams, user, params.abiOverride);
7942        mHandler.sendMessage(msg);
7943    }
7944
7945    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7946        Bundle extras = new Bundle(1);
7947        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7948
7949        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7950                packageName, extras, null, null, new int[] {userId});
7951        try {
7952            IActivityManager am = ActivityManagerNative.getDefault();
7953            final boolean isSystem =
7954                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7955            if (isSystem && am.isUserRunning(userId, false)) {
7956                // The just-installed/enabled app is bundled on the system, so presumed
7957                // to be able to run automatically without needing an explicit launch.
7958                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7959                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7960                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7961                        .setPackage(packageName);
7962                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7963                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7964            }
7965        } catch (RemoteException e) {
7966            // shouldn't happen
7967            Slog.w(TAG, "Unable to bootstrap installed package", e);
7968        }
7969    }
7970
7971    @Override
7972    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7973            int userId) {
7974        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7975        PackageSetting pkgSetting;
7976        final int uid = Binder.getCallingUid();
7977        enforceCrossUserPermission(uid, userId, true, true,
7978                "setApplicationHiddenSetting for user " + userId);
7979
7980        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
7981            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
7982            return false;
7983        }
7984
7985        long callingId = Binder.clearCallingIdentity();
7986        try {
7987            boolean sendAdded = false;
7988            boolean sendRemoved = false;
7989            // writer
7990            synchronized (mPackages) {
7991                pkgSetting = mSettings.mPackages.get(packageName);
7992                if (pkgSetting == null) {
7993                    return false;
7994                }
7995                if (pkgSetting.getHidden(userId) != hidden) {
7996                    pkgSetting.setHidden(hidden, userId);
7997                    mSettings.writePackageRestrictionsLPr(userId);
7998                    if (hidden) {
7999                        sendRemoved = true;
8000                    } else {
8001                        sendAdded = true;
8002                    }
8003                }
8004            }
8005            if (sendAdded) {
8006                sendPackageAddedForUser(packageName, pkgSetting, userId);
8007                return true;
8008            }
8009            if (sendRemoved) {
8010                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8011                        "hiding pkg");
8012                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8013            }
8014        } finally {
8015            Binder.restoreCallingIdentity(callingId);
8016        }
8017        return false;
8018    }
8019
8020    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8021            int userId) {
8022        final PackageRemovedInfo info = new PackageRemovedInfo();
8023        info.removedPackage = packageName;
8024        info.removedUsers = new int[] {userId};
8025        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8026        info.sendBroadcast(false, false, false);
8027    }
8028
8029    /**
8030     * Returns true if application is not found or there was an error. Otherwise it returns
8031     * the hidden state of the package for the given user.
8032     */
8033    @Override
8034    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8035        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8036        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8037                false, "getApplicationHidden for user " + userId);
8038        PackageSetting pkgSetting;
8039        long callingId = Binder.clearCallingIdentity();
8040        try {
8041            // writer
8042            synchronized (mPackages) {
8043                pkgSetting = mSettings.mPackages.get(packageName);
8044                if (pkgSetting == null) {
8045                    return true;
8046                }
8047                return pkgSetting.getHidden(userId);
8048            }
8049        } finally {
8050            Binder.restoreCallingIdentity(callingId);
8051        }
8052    }
8053
8054    /**
8055     * @hide
8056     */
8057    @Override
8058    public int installExistingPackageAsUser(String packageName, int userId) {
8059        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8060                null);
8061        PackageSetting pkgSetting;
8062        final int uid = Binder.getCallingUid();
8063        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8064                + userId);
8065        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8066            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8067        }
8068
8069        long callingId = Binder.clearCallingIdentity();
8070        try {
8071            boolean sendAdded = false;
8072            Bundle extras = new Bundle(1);
8073
8074            // writer
8075            synchronized (mPackages) {
8076                pkgSetting = mSettings.mPackages.get(packageName);
8077                if (pkgSetting == null) {
8078                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8079                }
8080                if (!pkgSetting.getInstalled(userId)) {
8081                    pkgSetting.setInstalled(true, userId);
8082                    pkgSetting.setHidden(false, userId);
8083                    mSettings.writePackageRestrictionsLPr(userId);
8084                    sendAdded = true;
8085                }
8086            }
8087
8088            if (sendAdded) {
8089                sendPackageAddedForUser(packageName, pkgSetting, userId);
8090            }
8091        } finally {
8092            Binder.restoreCallingIdentity(callingId);
8093        }
8094
8095        return PackageManager.INSTALL_SUCCEEDED;
8096    }
8097
8098    boolean isUserRestricted(int userId, String restrictionKey) {
8099        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8100        if (restrictions.getBoolean(restrictionKey, false)) {
8101            Log.w(TAG, "User is restricted: " + restrictionKey);
8102            return true;
8103        }
8104        return false;
8105    }
8106
8107    @Override
8108    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8109        mContext.enforceCallingOrSelfPermission(
8110                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8111                "Only package verification agents can verify applications");
8112
8113        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8114        final PackageVerificationResponse response = new PackageVerificationResponse(
8115                verificationCode, Binder.getCallingUid());
8116        msg.arg1 = id;
8117        msg.obj = response;
8118        mHandler.sendMessage(msg);
8119    }
8120
8121    @Override
8122    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8123            long millisecondsToDelay) {
8124        mContext.enforceCallingOrSelfPermission(
8125                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8126                "Only package verification agents can extend verification timeouts");
8127
8128        final PackageVerificationState state = mPendingVerification.get(id);
8129        final PackageVerificationResponse response = new PackageVerificationResponse(
8130                verificationCodeAtTimeout, Binder.getCallingUid());
8131
8132        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8133            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8134        }
8135        if (millisecondsToDelay < 0) {
8136            millisecondsToDelay = 0;
8137        }
8138        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8139                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8140            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8141        }
8142
8143        if ((state != null) && !state.timeoutExtended()) {
8144            state.extendTimeout();
8145
8146            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8147            msg.arg1 = id;
8148            msg.obj = response;
8149            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8150        }
8151    }
8152
8153    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8154            int verificationCode, UserHandle user) {
8155        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8156        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8157        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8158        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8159        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8160
8161        mContext.sendBroadcastAsUser(intent, user,
8162                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8163    }
8164
8165    private ComponentName matchComponentForVerifier(String packageName,
8166            List<ResolveInfo> receivers) {
8167        ActivityInfo targetReceiver = null;
8168
8169        final int NR = receivers.size();
8170        for (int i = 0; i < NR; i++) {
8171            final ResolveInfo info = receivers.get(i);
8172            if (info.activityInfo == null) {
8173                continue;
8174            }
8175
8176            if (packageName.equals(info.activityInfo.packageName)) {
8177                targetReceiver = info.activityInfo;
8178                break;
8179            }
8180        }
8181
8182        if (targetReceiver == null) {
8183            return null;
8184        }
8185
8186        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8187    }
8188
8189    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8190            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8191        if (pkgInfo.verifiers.length == 0) {
8192            return null;
8193        }
8194
8195        final int N = pkgInfo.verifiers.length;
8196        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8197        for (int i = 0; i < N; i++) {
8198            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8199
8200            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8201                    receivers);
8202            if (comp == null) {
8203                continue;
8204            }
8205
8206            final int verifierUid = getUidForVerifier(verifierInfo);
8207            if (verifierUid == -1) {
8208                continue;
8209            }
8210
8211            if (DEBUG_VERIFY) {
8212                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8213                        + " with the correct signature");
8214            }
8215            sufficientVerifiers.add(comp);
8216            verificationState.addSufficientVerifier(verifierUid);
8217        }
8218
8219        return sufficientVerifiers;
8220    }
8221
8222    private int getUidForVerifier(VerifierInfo verifierInfo) {
8223        synchronized (mPackages) {
8224            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8225            if (pkg == null) {
8226                return -1;
8227            } else if (pkg.mSignatures.length != 1) {
8228                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8229                        + " has more than one signature; ignoring");
8230                return -1;
8231            }
8232
8233            /*
8234             * If the public key of the package's signature does not match
8235             * our expected public key, then this is a different package and
8236             * we should skip.
8237             */
8238
8239            final byte[] expectedPublicKey;
8240            try {
8241                final Signature verifierSig = pkg.mSignatures[0];
8242                final PublicKey publicKey = verifierSig.getPublicKey();
8243                expectedPublicKey = publicKey.getEncoded();
8244            } catch (CertificateException e) {
8245                return -1;
8246            }
8247
8248            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8249
8250            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8251                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8252                        + " does not have the expected public key; ignoring");
8253                return -1;
8254            }
8255
8256            return pkg.applicationInfo.uid;
8257        }
8258    }
8259
8260    @Override
8261    public void finishPackageInstall(int token) {
8262        enforceSystemOrRoot("Only the system is allowed to finish installs");
8263
8264        if (DEBUG_INSTALL) {
8265            Slog.v(TAG, "BM finishing package install for " + token);
8266        }
8267
8268        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8269        mHandler.sendMessage(msg);
8270    }
8271
8272    /**
8273     * Get the verification agent timeout.
8274     *
8275     * @return verification timeout in milliseconds
8276     */
8277    private long getVerificationTimeout() {
8278        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8279                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8280                DEFAULT_VERIFICATION_TIMEOUT);
8281    }
8282
8283    /**
8284     * Get the default verification agent response code.
8285     *
8286     * @return default verification response code
8287     */
8288    private int getDefaultVerificationResponse() {
8289        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8290                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8291                DEFAULT_VERIFICATION_RESPONSE);
8292    }
8293
8294    /**
8295     * Check whether or not package verification has been enabled.
8296     *
8297     * @return true if verification should be performed
8298     */
8299    private boolean isVerificationEnabled(int userId, int installFlags) {
8300        if (!DEFAULT_VERIFY_ENABLE) {
8301            return false;
8302        }
8303
8304        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8305
8306        // Check if installing from ADB
8307        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8308            // Do not run verification in a test harness environment
8309            if (ActivityManager.isRunningInTestHarness()) {
8310                return false;
8311            }
8312            if (ensureVerifyAppsEnabled) {
8313                return true;
8314            }
8315            // Check if the developer does not want package verification for ADB installs
8316            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8317                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8318                return false;
8319            }
8320        }
8321
8322        if (ensureVerifyAppsEnabled) {
8323            return true;
8324        }
8325
8326        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8327                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8328    }
8329
8330    /**
8331     * Get the "allow unknown sources" setting.
8332     *
8333     * @return the current "allow unknown sources" setting
8334     */
8335    private int getUnknownSourcesSettings() {
8336        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8337                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8338                -1);
8339    }
8340
8341    @Override
8342    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8343        final int uid = Binder.getCallingUid();
8344        // writer
8345        synchronized (mPackages) {
8346            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8347            if (targetPackageSetting == null) {
8348                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8349            }
8350
8351            PackageSetting installerPackageSetting;
8352            if (installerPackageName != null) {
8353                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8354                if (installerPackageSetting == null) {
8355                    throw new IllegalArgumentException("Unknown installer package: "
8356                            + installerPackageName);
8357                }
8358            } else {
8359                installerPackageSetting = null;
8360            }
8361
8362            Signature[] callerSignature;
8363            Object obj = mSettings.getUserIdLPr(uid);
8364            if (obj != null) {
8365                if (obj instanceof SharedUserSetting) {
8366                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8367                } else if (obj instanceof PackageSetting) {
8368                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8369                } else {
8370                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8371                }
8372            } else {
8373                throw new SecurityException("Unknown calling uid " + uid);
8374            }
8375
8376            // Verify: can't set installerPackageName to a package that is
8377            // not signed with the same cert as the caller.
8378            if (installerPackageSetting != null) {
8379                if (compareSignatures(callerSignature,
8380                        installerPackageSetting.signatures.mSignatures)
8381                        != PackageManager.SIGNATURE_MATCH) {
8382                    throw new SecurityException(
8383                            "Caller does not have same cert as new installer package "
8384                            + installerPackageName);
8385                }
8386            }
8387
8388            // Verify: if target already has an installer package, it must
8389            // be signed with the same cert as the caller.
8390            if (targetPackageSetting.installerPackageName != null) {
8391                PackageSetting setting = mSettings.mPackages.get(
8392                        targetPackageSetting.installerPackageName);
8393                // If the currently set package isn't valid, then it's always
8394                // okay to change it.
8395                if (setting != null) {
8396                    if (compareSignatures(callerSignature,
8397                            setting.signatures.mSignatures)
8398                            != PackageManager.SIGNATURE_MATCH) {
8399                        throw new SecurityException(
8400                                "Caller does not have same cert as old installer package "
8401                                + targetPackageSetting.installerPackageName);
8402                    }
8403                }
8404            }
8405
8406            // Okay!
8407            targetPackageSetting.installerPackageName = installerPackageName;
8408            scheduleWriteSettingsLocked();
8409        }
8410    }
8411
8412    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8413        // Queue up an async operation since the package installation may take a little while.
8414        mHandler.post(new Runnable() {
8415            public void run() {
8416                mHandler.removeCallbacks(this);
8417                 // Result object to be returned
8418                PackageInstalledInfo res = new PackageInstalledInfo();
8419                res.returnCode = currentStatus;
8420                res.uid = -1;
8421                res.pkg = null;
8422                res.removedInfo = new PackageRemovedInfo();
8423                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8424                    args.doPreInstall(res.returnCode);
8425                    synchronized (mInstallLock) {
8426                        installPackageLI(args, res);
8427                    }
8428                    args.doPostInstall(res.returnCode, res.uid);
8429                }
8430
8431                // A restore should be performed at this point if (a) the install
8432                // succeeded, (b) the operation is not an update, and (c) the new
8433                // package has not opted out of backup participation.
8434                final boolean update = res.removedInfo.removedPackage != null;
8435                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8436                boolean doRestore = !update
8437                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8438
8439                // Set up the post-install work request bookkeeping.  This will be used
8440                // and cleaned up by the post-install event handling regardless of whether
8441                // there's a restore pass performed.  Token values are >= 1.
8442                int token;
8443                if (mNextInstallToken < 0) mNextInstallToken = 1;
8444                token = mNextInstallToken++;
8445
8446                PostInstallData data = new PostInstallData(args, res);
8447                mRunningInstalls.put(token, data);
8448                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8449
8450                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8451                    // Pass responsibility to the Backup Manager.  It will perform a
8452                    // restore if appropriate, then pass responsibility back to the
8453                    // Package Manager to run the post-install observer callbacks
8454                    // and broadcasts.
8455                    IBackupManager bm = IBackupManager.Stub.asInterface(
8456                            ServiceManager.getService(Context.BACKUP_SERVICE));
8457                    if (bm != null) {
8458                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8459                                + " to BM for possible restore");
8460                        try {
8461                            if (bm.isBackupServiceActive(UserHandle.USER_OWNER)) {
8462                                bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8463                            } else {
8464                                doRestore = false;
8465                            }
8466                        } catch (RemoteException e) {
8467                            // can't happen; the backup manager is local
8468                        } catch (Exception e) {
8469                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8470                            doRestore = false;
8471                        }
8472                    } else {
8473                        Slog.e(TAG, "Backup Manager not found!");
8474                        doRestore = false;
8475                    }
8476                }
8477
8478                if (!doRestore) {
8479                    // No restore possible, or the Backup Manager was mysteriously not
8480                    // available -- just fire the post-install work request directly.
8481                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8482                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8483                    mHandler.sendMessage(msg);
8484                }
8485            }
8486        });
8487    }
8488
8489    private abstract class HandlerParams {
8490        private static final int MAX_RETRIES = 4;
8491
8492        /**
8493         * Number of times startCopy() has been attempted and had a non-fatal
8494         * error.
8495         */
8496        private int mRetries = 0;
8497
8498        /** User handle for the user requesting the information or installation. */
8499        private final UserHandle mUser;
8500
8501        HandlerParams(UserHandle user) {
8502            mUser = user;
8503        }
8504
8505        UserHandle getUser() {
8506            return mUser;
8507        }
8508
8509        final boolean startCopy() {
8510            boolean res;
8511            try {
8512                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8513
8514                if (++mRetries > MAX_RETRIES) {
8515                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8516                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8517                    handleServiceError();
8518                    return false;
8519                } else {
8520                    handleStartCopy();
8521                    res = true;
8522                }
8523            } catch (RemoteException e) {
8524                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8525                mHandler.sendEmptyMessage(MCS_RECONNECT);
8526                res = false;
8527            }
8528            handleReturnCode();
8529            return res;
8530        }
8531
8532        final void serviceError() {
8533            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8534            handleServiceError();
8535            handleReturnCode();
8536        }
8537
8538        abstract void handleStartCopy() throws RemoteException;
8539        abstract void handleServiceError();
8540        abstract void handleReturnCode();
8541    }
8542
8543    class MeasureParams extends HandlerParams {
8544        private final PackageStats mStats;
8545        private boolean mSuccess;
8546
8547        private final IPackageStatsObserver mObserver;
8548
8549        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8550            super(new UserHandle(stats.userHandle));
8551            mObserver = observer;
8552            mStats = stats;
8553        }
8554
8555        @Override
8556        public String toString() {
8557            return "MeasureParams{"
8558                + Integer.toHexString(System.identityHashCode(this))
8559                + " " + mStats.packageName + "}";
8560        }
8561
8562        @Override
8563        void handleStartCopy() throws RemoteException {
8564            synchronized (mInstallLock) {
8565                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8566            }
8567
8568            if (mSuccess) {
8569                final boolean mounted;
8570                if (Environment.isExternalStorageEmulated()) {
8571                    mounted = true;
8572                } else {
8573                    final String status = Environment.getExternalStorageState();
8574                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8575                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8576                }
8577
8578                if (mounted) {
8579                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8580
8581                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8582                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8583
8584                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8585                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8586
8587                    // Always subtract cache size, since it's a subdirectory
8588                    mStats.externalDataSize -= mStats.externalCacheSize;
8589
8590                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8591                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8592
8593                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8594                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8595                }
8596            }
8597        }
8598
8599        @Override
8600        void handleReturnCode() {
8601            if (mObserver != null) {
8602                try {
8603                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8604                } catch (RemoteException e) {
8605                    Slog.i(TAG, "Observer no longer exists.");
8606                }
8607            }
8608        }
8609
8610        @Override
8611        void handleServiceError() {
8612            Slog.e(TAG, "Could not measure application " + mStats.packageName
8613                            + " external storage");
8614        }
8615    }
8616
8617    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8618            throws RemoteException {
8619        long result = 0;
8620        for (File path : paths) {
8621            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8622        }
8623        return result;
8624    }
8625
8626    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8627        for (File path : paths) {
8628            try {
8629                mcs.clearDirectory(path.getAbsolutePath());
8630            } catch (RemoteException e) {
8631            }
8632        }
8633    }
8634
8635    static class OriginInfo {
8636        /**
8637         * Location where install is coming from, before it has been
8638         * copied/renamed into place. This could be a single monolithic APK
8639         * file, or a cluster directory. This location may be untrusted.
8640         */
8641        final File file;
8642        final String cid;
8643
8644        /**
8645         * Flag indicating that {@link #file} or {@link #cid} has already been
8646         * staged, meaning downstream users don't need to defensively copy the
8647         * contents.
8648         */
8649        final boolean staged;
8650
8651        /**
8652         * Flag indicating that {@link #file} or {@link #cid} is an already
8653         * installed app that is being moved.
8654         */
8655        final boolean existing;
8656
8657        final String resolvedPath;
8658        final File resolvedFile;
8659
8660        static OriginInfo fromNothing() {
8661            return new OriginInfo(null, null, false, false);
8662        }
8663
8664        static OriginInfo fromUntrustedFile(File file) {
8665            return new OriginInfo(file, null, false, false);
8666        }
8667
8668        static OriginInfo fromExistingFile(File file) {
8669            return new OriginInfo(file, null, false, true);
8670        }
8671
8672        static OriginInfo fromStagedFile(File file) {
8673            return new OriginInfo(file, null, true, false);
8674        }
8675
8676        static OriginInfo fromStagedContainer(String cid) {
8677            return new OriginInfo(null, cid, true, false);
8678        }
8679
8680        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8681            this.file = file;
8682            this.cid = cid;
8683            this.staged = staged;
8684            this.existing = existing;
8685
8686            if (cid != null) {
8687                resolvedPath = PackageHelper.getSdDir(cid);
8688                resolvedFile = new File(resolvedPath);
8689            } else if (file != null) {
8690                resolvedPath = file.getAbsolutePath();
8691                resolvedFile = file;
8692            } else {
8693                resolvedPath = null;
8694                resolvedFile = null;
8695            }
8696        }
8697    }
8698
8699    class InstallParams extends HandlerParams {
8700        final OriginInfo origin;
8701        final IPackageInstallObserver2 observer;
8702        int installFlags;
8703        final String installerPackageName;
8704        final VerificationParams verificationParams;
8705        private InstallArgs mArgs;
8706        private int mRet;
8707        final String packageAbiOverride;
8708
8709        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8710                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8711                String packageAbiOverride) {
8712            super(user);
8713            this.origin = origin;
8714            this.observer = observer;
8715            this.installFlags = installFlags;
8716            this.installerPackageName = installerPackageName;
8717            this.verificationParams = verificationParams;
8718            this.packageAbiOverride = packageAbiOverride;
8719        }
8720
8721        @Override
8722        public String toString() {
8723            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8724                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8725        }
8726
8727        public ManifestDigest getManifestDigest() {
8728            if (verificationParams == null) {
8729                return null;
8730            }
8731            return verificationParams.getManifestDigest();
8732        }
8733
8734        private int installLocationPolicy(PackageInfoLite pkgLite) {
8735            String packageName = pkgLite.packageName;
8736            int installLocation = pkgLite.installLocation;
8737            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8738            // reader
8739            synchronized (mPackages) {
8740                PackageParser.Package pkg = mPackages.get(packageName);
8741                if (pkg != null) {
8742                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8743                        // Check for downgrading.
8744                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8745                            try {
8746                                checkDowngrade(pkg, pkgLite);
8747                            } catch (PackageManagerException e) {
8748                                Slog.w(TAG, "Downgrade detected: " + e.getMessage());
8749                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8750                            }
8751                        }
8752                        // Check for updated system application.
8753                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8754                            if (onSd) {
8755                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8756                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8757                            }
8758                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8759                        } else {
8760                            if (onSd) {
8761                                // Install flag overrides everything.
8762                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8763                            }
8764                            // If current upgrade specifies particular preference
8765                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8766                                // Application explicitly specified internal.
8767                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8768                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8769                                // App explictly prefers external. Let policy decide
8770                            } else {
8771                                // Prefer previous location
8772                                if (isExternal(pkg)) {
8773                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8774                                }
8775                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8776                            }
8777                        }
8778                    } else {
8779                        // Invalid install. Return error code
8780                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8781                    }
8782                }
8783            }
8784            // All the special cases have been taken care of.
8785            // Return result based on recommended install location.
8786            if (onSd) {
8787                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8788            }
8789            return pkgLite.recommendedInstallLocation;
8790        }
8791
8792        /*
8793         * Invoke remote method to get package information and install
8794         * location values. Override install location based on default
8795         * policy if needed and then create install arguments based
8796         * on the install location.
8797         */
8798        public void handleStartCopy() throws RemoteException {
8799            int ret = PackageManager.INSTALL_SUCCEEDED;
8800
8801            // If we're already staged, we've firmly committed to an install location
8802            if (origin.staged) {
8803                if (origin.file != null) {
8804                    installFlags |= PackageManager.INSTALL_INTERNAL;
8805                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8806                } else if (origin.cid != null) {
8807                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8808                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8809                } else {
8810                    throw new IllegalStateException("Invalid stage location");
8811                }
8812            }
8813
8814            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8815            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8816
8817            PackageInfoLite pkgLite = null;
8818
8819            if (onInt && onSd) {
8820                // Check if both bits are set.
8821                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8822                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8823            } else {
8824                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8825                        packageAbiOverride);
8826
8827                /*
8828                 * If we have too little free space, try to free cache
8829                 * before giving up.
8830                 */
8831                if (!origin.staged && pkgLite.recommendedInstallLocation
8832                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8833                    // TODO: focus freeing disk space on the target device
8834                    final StorageManager storage = StorageManager.from(mContext);
8835                    final long lowThreshold = storage.getStorageLowBytes(
8836                            Environment.getDataDirectory());
8837
8838                    final long sizeBytes = mContainerService.calculateInstalledSize(
8839                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8840
8841                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8842                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8843                                installFlags, packageAbiOverride);
8844                    }
8845
8846                    /*
8847                     * The cache free must have deleted the file we
8848                     * downloaded to install.
8849                     *
8850                     * TODO: fix the "freeCache" call to not delete
8851                     *       the file we care about.
8852                     */
8853                    if (pkgLite.recommendedInstallLocation
8854                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8855                        pkgLite.recommendedInstallLocation
8856                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8857                    }
8858                }
8859            }
8860
8861            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8862                int loc = pkgLite.recommendedInstallLocation;
8863                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8864                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8865                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8866                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8867                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8868                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8869                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8870                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8871                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8872                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8873                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8874                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8875                } else {
8876                    // Override with defaults if needed.
8877                    loc = installLocationPolicy(pkgLite);
8878                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8879                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8880                    } else if (!onSd && !onInt) {
8881                        // Override install location with flags
8882                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8883                            // Set the flag to install on external media.
8884                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8885                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8886                        } else {
8887                            // Make sure the flag for installing on external
8888                            // media is unset
8889                            installFlags |= PackageManager.INSTALL_INTERNAL;
8890                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8891                        }
8892                    }
8893                }
8894            }
8895
8896            final InstallArgs args = createInstallArgs(this);
8897            mArgs = args;
8898
8899            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8900                 /*
8901                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8902                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8903                 */
8904                int userIdentifier = getUser().getIdentifier();
8905                if (userIdentifier == UserHandle.USER_ALL
8906                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8907                    userIdentifier = UserHandle.USER_OWNER;
8908                }
8909
8910                /*
8911                 * Determine if we have any installed package verifiers. If we
8912                 * do, then we'll defer to them to verify the packages.
8913                 */
8914                final int requiredUid = mRequiredVerifierPackage == null ? -1
8915                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8916                if (!origin.existing && requiredUid != -1
8917                        && isVerificationEnabled(userIdentifier, installFlags)) {
8918                    final Intent verification = new Intent(
8919                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8920                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
8921                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8922                            PACKAGE_MIME_TYPE);
8923                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8924
8925                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8926                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8927                            0 /* TODO: Which userId? */);
8928
8929                    if (DEBUG_VERIFY) {
8930                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8931                                + verification.toString() + " with " + pkgLite.verifiers.length
8932                                + " optional verifiers");
8933                    }
8934
8935                    final int verificationId = mPendingVerificationToken++;
8936
8937                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8938
8939                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8940                            installerPackageName);
8941
8942                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8943                            installFlags);
8944
8945                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8946                            pkgLite.packageName);
8947
8948                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8949                            pkgLite.versionCode);
8950
8951                    if (verificationParams != null) {
8952                        if (verificationParams.getVerificationURI() != null) {
8953                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8954                                 verificationParams.getVerificationURI());
8955                        }
8956                        if (verificationParams.getOriginatingURI() != null) {
8957                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8958                                  verificationParams.getOriginatingURI());
8959                        }
8960                        if (verificationParams.getReferrer() != null) {
8961                            verification.putExtra(Intent.EXTRA_REFERRER,
8962                                  verificationParams.getReferrer());
8963                        }
8964                        if (verificationParams.getOriginatingUid() >= 0) {
8965                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8966                                  verificationParams.getOriginatingUid());
8967                        }
8968                        if (verificationParams.getInstallerUid() >= 0) {
8969                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8970                                  verificationParams.getInstallerUid());
8971                        }
8972                    }
8973
8974                    final PackageVerificationState verificationState = new PackageVerificationState(
8975                            requiredUid, args);
8976
8977                    mPendingVerification.append(verificationId, verificationState);
8978
8979                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8980                            receivers, verificationState);
8981
8982                    /*
8983                     * If any sufficient verifiers were listed in the package
8984                     * manifest, attempt to ask them.
8985                     */
8986                    if (sufficientVerifiers != null) {
8987                        final int N = sufficientVerifiers.size();
8988                        if (N == 0) {
8989                            Slog.i(TAG, "Additional verifiers required, but none installed.");
8990                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
8991                        } else {
8992                            for (int i = 0; i < N; i++) {
8993                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
8994
8995                                final Intent sufficientIntent = new Intent(verification);
8996                                sufficientIntent.setComponent(verifierComponent);
8997
8998                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
8999                            }
9000                        }
9001                    }
9002
9003                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9004                            mRequiredVerifierPackage, receivers);
9005                    if (ret == PackageManager.INSTALL_SUCCEEDED
9006                            && mRequiredVerifierPackage != null) {
9007                        /*
9008                         * Send the intent to the required verification agent,
9009                         * but only start the verification timeout after the
9010                         * target BroadcastReceivers have run.
9011                         */
9012                        verification.setComponent(requiredVerifierComponent);
9013                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9014                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9015                                new BroadcastReceiver() {
9016                                    @Override
9017                                    public void onReceive(Context context, Intent intent) {
9018                                        final Message msg = mHandler
9019                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9020                                        msg.arg1 = verificationId;
9021                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9022                                    }
9023                                }, null, 0, null, null);
9024
9025                        /*
9026                         * We don't want the copy to proceed until verification
9027                         * succeeds, so null out this field.
9028                         */
9029                        mArgs = null;
9030                    }
9031                } else {
9032                    /*
9033                     * No package verification is enabled, so immediately start
9034                     * the remote call to initiate copy using temporary file.
9035                     */
9036                    ret = args.copyApk(mContainerService, true);
9037                }
9038            }
9039
9040            mRet = ret;
9041        }
9042
9043        @Override
9044        void handleReturnCode() {
9045            // If mArgs is null, then MCS couldn't be reached. When it
9046            // reconnects, it will try again to install. At that point, this
9047            // will succeed.
9048            if (mArgs != null) {
9049                processPendingInstall(mArgs, mRet);
9050            }
9051        }
9052
9053        @Override
9054        void handleServiceError() {
9055            mArgs = createInstallArgs(this);
9056            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9057        }
9058
9059        public boolean isForwardLocked() {
9060            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9061        }
9062    }
9063
9064    /**
9065     * Used during creation of InstallArgs
9066     *
9067     * @param installFlags package installation flags
9068     * @return true if should be installed on external storage
9069     */
9070    private static boolean installOnSd(int installFlags) {
9071        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9072            return false;
9073        }
9074        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9075            return true;
9076        }
9077        return false;
9078    }
9079
9080    /**
9081     * Used during creation of InstallArgs
9082     *
9083     * @param installFlags package installation flags
9084     * @return true if should be installed as forward locked
9085     */
9086    private static boolean installForwardLocked(int installFlags) {
9087        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9088    }
9089
9090    private InstallArgs createInstallArgs(InstallParams params) {
9091        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9092            return new AsecInstallArgs(params);
9093        } else {
9094            return new FileInstallArgs(params);
9095        }
9096    }
9097
9098    /**
9099     * Create args that describe an existing installed package. Typically used
9100     * when cleaning up old installs, or used as a move source.
9101     */
9102    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9103            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9104        final boolean isInAsec;
9105        if (installOnSd(installFlags)) {
9106            /* Apps on SD card are always in ASEC containers. */
9107            isInAsec = true;
9108        } else if (installForwardLocked(installFlags)
9109                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9110            /*
9111             * Forward-locked apps are only in ASEC containers if they're the
9112             * new style
9113             */
9114            isInAsec = true;
9115        } else {
9116            isInAsec = false;
9117        }
9118
9119        if (isInAsec) {
9120            return new AsecInstallArgs(codePath, instructionSets,
9121                    installOnSd(installFlags), installForwardLocked(installFlags));
9122        } else {
9123            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9124                    instructionSets);
9125        }
9126    }
9127
9128    static abstract class InstallArgs {
9129        /** @see InstallParams#origin */
9130        final OriginInfo origin;
9131
9132        final IPackageInstallObserver2 observer;
9133        // Always refers to PackageManager flags only
9134        final int installFlags;
9135        final String installerPackageName;
9136        final ManifestDigest manifestDigest;
9137        final UserHandle user;
9138        final String abiOverride;
9139
9140        // The list of instruction sets supported by this app. This is currently
9141        // only used during the rmdex() phase to clean up resources. We can get rid of this
9142        // if we move dex files under the common app path.
9143        /* nullable */ String[] instructionSets;
9144
9145        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9146                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9147                String[] instructionSets, String abiOverride) {
9148            this.origin = origin;
9149            this.installFlags = installFlags;
9150            this.observer = observer;
9151            this.installerPackageName = installerPackageName;
9152            this.manifestDigest = manifestDigest;
9153            this.user = user;
9154            this.instructionSets = instructionSets;
9155            this.abiOverride = abiOverride;
9156        }
9157
9158        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9159        abstract int doPreInstall(int status);
9160
9161        /**
9162         * Rename package into final resting place. All paths on the given
9163         * scanned package should be updated to reflect the rename.
9164         */
9165        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9166        abstract int doPostInstall(int status, int uid);
9167
9168        /** @see PackageSettingBase#codePathString */
9169        abstract String getCodePath();
9170        /** @see PackageSettingBase#resourcePathString */
9171        abstract String getResourcePath();
9172        abstract String getLegacyNativeLibraryPath();
9173
9174        // Need installer lock especially for dex file removal.
9175        abstract void cleanUpResourcesLI();
9176        abstract boolean doPostDeleteLI(boolean delete);
9177        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9178
9179        /**
9180         * Called before the source arguments are copied. This is used mostly
9181         * for MoveParams when it needs to read the source file to put it in the
9182         * destination.
9183         */
9184        int doPreCopy() {
9185            return PackageManager.INSTALL_SUCCEEDED;
9186        }
9187
9188        /**
9189         * Called after the source arguments are copied. This is used mostly for
9190         * MoveParams when it needs to read the source file to put it in the
9191         * destination.
9192         *
9193         * @return
9194         */
9195        int doPostCopy(int uid) {
9196            return PackageManager.INSTALL_SUCCEEDED;
9197        }
9198
9199        protected boolean isFwdLocked() {
9200            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9201        }
9202
9203        protected boolean isExternal() {
9204            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9205        }
9206
9207        UserHandle getUser() {
9208            return user;
9209        }
9210    }
9211
9212    private void removeDexFiles(List<String> allCodePaths, String[] instructionSets) {
9213        if (!allCodePaths.isEmpty()) {
9214            if (instructionSets == null) {
9215                throw new IllegalStateException("instructionSet == null");
9216            }
9217            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9218            for (String codePath : allCodePaths) {
9219                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9220                    int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9221                    if (retCode < 0) {
9222                        Slog.w(TAG, "Couldn't remove dex file for package: "
9223                                + " at location " + codePath + ", retcode=" + retCode);
9224                        // we don't consider this to be a failure of the core package deletion
9225                    }
9226                }
9227            }
9228        }
9229    }
9230
9231    /**
9232     * Logic to handle installation of non-ASEC applications, including copying
9233     * and renaming logic.
9234     */
9235    class FileInstallArgs extends InstallArgs {
9236        private File codeFile;
9237        private File resourceFile;
9238        private File legacyNativeLibraryPath;
9239
9240        // Example topology:
9241        // /data/app/com.example/base.apk
9242        // /data/app/com.example/split_foo.apk
9243        // /data/app/com.example/lib/arm/libfoo.so
9244        // /data/app/com.example/lib/arm64/libfoo.so
9245        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9246
9247        /** New install */
9248        FileInstallArgs(InstallParams params) {
9249            super(params.origin, params.observer, params.installFlags,
9250                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9251                    null /* instruction sets */, params.packageAbiOverride);
9252            if (isFwdLocked()) {
9253                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9254            }
9255        }
9256
9257        /** Existing install */
9258        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9259                String[] instructionSets) {
9260            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9261            this.codeFile = (codePath != null) ? new File(codePath) : null;
9262            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9263            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9264                    new File(legacyNativeLibraryPath) : null;
9265        }
9266
9267        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9268            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9269                    isFwdLocked(), abiOverride);
9270
9271            final StorageManager storage = StorageManager.from(mContext);
9272            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9273        }
9274
9275        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9276            if (origin.staged) {
9277                Slog.d(TAG, origin.file + " already staged; skipping copy");
9278                codeFile = origin.file;
9279                resourceFile = origin.file;
9280                return PackageManager.INSTALL_SUCCEEDED;
9281            }
9282
9283            try {
9284                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9285                codeFile = tempDir;
9286                resourceFile = tempDir;
9287            } catch (IOException e) {
9288                Slog.w(TAG, "Failed to create copy file: " + e);
9289                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9290            }
9291
9292            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9293                @Override
9294                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9295                    if (!FileUtils.isValidExtFilename(name)) {
9296                        throw new IllegalArgumentException("Invalid filename: " + name);
9297                    }
9298                    try {
9299                        final File file = new File(codeFile, name);
9300                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9301                                O_RDWR | O_CREAT, 0644);
9302                        Os.chmod(file.getAbsolutePath(), 0644);
9303                        return new ParcelFileDescriptor(fd);
9304                    } catch (ErrnoException e) {
9305                        throw new RemoteException("Failed to open: " + e.getMessage());
9306                    }
9307                }
9308            };
9309
9310            int ret = PackageManager.INSTALL_SUCCEEDED;
9311            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9312            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9313                Slog.e(TAG, "Failed to copy package");
9314                return ret;
9315            }
9316
9317            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9318            NativeLibraryHelper.Handle handle = null;
9319            try {
9320                handle = NativeLibraryHelper.Handle.create(codeFile);
9321                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9322                        abiOverride);
9323            } catch (IOException e) {
9324                Slog.e(TAG, "Copying native libraries failed", e);
9325                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9326            } finally {
9327                IoUtils.closeQuietly(handle);
9328            }
9329
9330            return ret;
9331        }
9332
9333        int doPreInstall(int status) {
9334            if (status != PackageManager.INSTALL_SUCCEEDED) {
9335                cleanUp();
9336            }
9337            return status;
9338        }
9339
9340        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9341            if (status != PackageManager.INSTALL_SUCCEEDED) {
9342                cleanUp();
9343                return false;
9344            } else {
9345                final File beforeCodeFile = codeFile;
9346                final File afterCodeFile = getNextCodePath(pkg.packageName);
9347
9348                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9349                try {
9350                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9351                } catch (ErrnoException e) {
9352                    Slog.d(TAG, "Failed to rename", e);
9353                    return false;
9354                }
9355
9356                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9357                    Slog.d(TAG, "Failed to restorecon");
9358                    return false;
9359                }
9360
9361                // Reflect the rename internally
9362                codeFile = afterCodeFile;
9363                resourceFile = afterCodeFile;
9364
9365                // Reflect the rename in scanned details
9366                pkg.codePath = afterCodeFile.getAbsolutePath();
9367                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9368                        pkg.baseCodePath);
9369                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9370                        pkg.splitCodePaths);
9371
9372                // Reflect the rename in app info
9373                pkg.applicationInfo.setCodePath(pkg.codePath);
9374                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9375                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9376                pkg.applicationInfo.setResourcePath(pkg.codePath);
9377                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9378                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9379
9380                return true;
9381            }
9382        }
9383
9384        int doPostInstall(int status, int uid) {
9385            if (status != PackageManager.INSTALL_SUCCEEDED) {
9386                cleanUp();
9387            }
9388            return status;
9389        }
9390
9391        @Override
9392        String getCodePath() {
9393            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9394        }
9395
9396        @Override
9397        String getResourcePath() {
9398            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9399        }
9400
9401        @Override
9402        String getLegacyNativeLibraryPath() {
9403            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9404        }
9405
9406        private boolean cleanUp() {
9407            if (codeFile == null || !codeFile.exists()) {
9408                return false;
9409            }
9410
9411            if (codeFile.isDirectory()) {
9412                FileUtils.deleteContents(codeFile);
9413            }
9414            codeFile.delete();
9415
9416            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9417                resourceFile.delete();
9418            }
9419
9420            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9421                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9422                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9423                }
9424                legacyNativeLibraryPath.delete();
9425            }
9426
9427            return true;
9428        }
9429
9430        void cleanUpResourcesLI() {
9431            // Try enumerating all code paths before deleting
9432            List<String> allCodePaths = Collections.EMPTY_LIST;
9433            if (codeFile != null && codeFile.exists()) {
9434                try {
9435                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9436                    allCodePaths = pkg.getAllCodePaths();
9437                } catch (PackageParserException e) {
9438                    // Ignored; we tried our best
9439                }
9440            }
9441
9442            cleanUp();
9443            removeDexFiles(allCodePaths, instructionSets);
9444        }
9445
9446        boolean doPostDeleteLI(boolean delete) {
9447            // XXX err, shouldn't we respect the delete flag?
9448            cleanUpResourcesLI();
9449            return true;
9450        }
9451    }
9452
9453    private boolean isAsecExternal(String cid) {
9454        final String asecPath = PackageHelper.getSdFilesystem(cid);
9455        return !asecPath.startsWith(mAsecInternalPath);
9456    }
9457
9458    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9459            PackageManagerException {
9460        if (copyRet < 0) {
9461            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9462                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9463                throw new PackageManagerException(copyRet, message);
9464            }
9465        }
9466    }
9467
9468    /**
9469     * Extract the MountService "container ID" from the full code path of an
9470     * .apk.
9471     */
9472    static String cidFromCodePath(String fullCodePath) {
9473        int eidx = fullCodePath.lastIndexOf("/");
9474        String subStr1 = fullCodePath.substring(0, eidx);
9475        int sidx = subStr1.lastIndexOf("/");
9476        return subStr1.substring(sidx+1, eidx);
9477    }
9478
9479    /**
9480     * Logic to handle installation of ASEC applications, including copying and
9481     * renaming logic.
9482     */
9483    class AsecInstallArgs extends InstallArgs {
9484        static final String RES_FILE_NAME = "pkg.apk";
9485        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9486
9487        String cid;
9488        String packagePath;
9489        String resourcePath;
9490        String legacyNativeLibraryDir;
9491
9492        /** New install */
9493        AsecInstallArgs(InstallParams params) {
9494            super(params.origin, params.observer, params.installFlags,
9495                    params.installerPackageName, params.getManifestDigest(),
9496                    params.getUser(), null /* instruction sets */,
9497                    params.packageAbiOverride);
9498        }
9499
9500        /** Existing install */
9501        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9502                        boolean isExternal, boolean isForwardLocked) {
9503            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9504                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9505                    instructionSets, null);
9506            // Hackily pretend we're still looking at a full code path
9507            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9508                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9509            }
9510
9511            // Extract cid from fullCodePath
9512            int eidx = fullCodePath.lastIndexOf("/");
9513            String subStr1 = fullCodePath.substring(0, eidx);
9514            int sidx = subStr1.lastIndexOf("/");
9515            cid = subStr1.substring(sidx+1, eidx);
9516            setMountPath(subStr1);
9517        }
9518
9519        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9520            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9521                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9522                    instructionSets, null);
9523            this.cid = cid;
9524            setMountPath(PackageHelper.getSdDir(cid));
9525        }
9526
9527        void createCopyFile() {
9528            cid = mInstallerService.allocateExternalStageCidLegacy();
9529        }
9530
9531        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9532            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9533                    abiOverride);
9534
9535            final File target;
9536            if (isExternal()) {
9537                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9538            } else {
9539                target = Environment.getDataDirectory();
9540            }
9541
9542            final StorageManager storage = StorageManager.from(mContext);
9543            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9544        }
9545
9546        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9547            if (origin.staged) {
9548                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9549                cid = origin.cid;
9550                setMountPath(PackageHelper.getSdDir(cid));
9551                return PackageManager.INSTALL_SUCCEEDED;
9552            }
9553
9554            if (temp) {
9555                createCopyFile();
9556            } else {
9557                /*
9558                 * Pre-emptively destroy the container since it's destroyed if
9559                 * copying fails due to it existing anyway.
9560                 */
9561                PackageHelper.destroySdDir(cid);
9562            }
9563
9564            final String newMountPath = imcs.copyPackageToContainer(
9565                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9566                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9567
9568            if (newMountPath != null) {
9569                setMountPath(newMountPath);
9570                return PackageManager.INSTALL_SUCCEEDED;
9571            } else {
9572                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9573            }
9574        }
9575
9576        @Override
9577        String getCodePath() {
9578            return packagePath;
9579        }
9580
9581        @Override
9582        String getResourcePath() {
9583            return resourcePath;
9584        }
9585
9586        @Override
9587        String getLegacyNativeLibraryPath() {
9588            return legacyNativeLibraryDir;
9589        }
9590
9591        int doPreInstall(int status) {
9592            if (status != PackageManager.INSTALL_SUCCEEDED) {
9593                // Destroy container
9594                PackageHelper.destroySdDir(cid);
9595            } else {
9596                boolean mounted = PackageHelper.isContainerMounted(cid);
9597                if (!mounted) {
9598                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9599                            Process.SYSTEM_UID);
9600                    if (newMountPath != null) {
9601                        setMountPath(newMountPath);
9602                    } else {
9603                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9604                    }
9605                }
9606            }
9607            return status;
9608        }
9609
9610        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9611            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9612            String newMountPath = null;
9613            if (PackageHelper.isContainerMounted(cid)) {
9614                // Unmount the container
9615                if (!PackageHelper.unMountSdDir(cid)) {
9616                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9617                    return false;
9618                }
9619            }
9620            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9621                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9622                        " which might be stale. Will try to clean up.");
9623                // Clean up the stale container and proceed to recreate.
9624                if (!PackageHelper.destroySdDir(newCacheId)) {
9625                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9626                    return false;
9627                }
9628                // Successfully cleaned up stale container. Try to rename again.
9629                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9630                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9631                            + " inspite of cleaning it up.");
9632                    return false;
9633                }
9634            }
9635            if (!PackageHelper.isContainerMounted(newCacheId)) {
9636                Slog.w(TAG, "Mounting container " + newCacheId);
9637                newMountPath = PackageHelper.mountSdDir(newCacheId,
9638                        getEncryptKey(), Process.SYSTEM_UID);
9639            } else {
9640                newMountPath = PackageHelper.getSdDir(newCacheId);
9641            }
9642            if (newMountPath == null) {
9643                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9644                return false;
9645            }
9646            Log.i(TAG, "Succesfully renamed " + cid +
9647                    " to " + newCacheId +
9648                    " at new path: " + newMountPath);
9649            cid = newCacheId;
9650
9651            final File beforeCodeFile = new File(packagePath);
9652            setMountPath(newMountPath);
9653            final File afterCodeFile = new File(packagePath);
9654
9655            // Reflect the rename in scanned details
9656            pkg.codePath = afterCodeFile.getAbsolutePath();
9657            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9658                    pkg.baseCodePath);
9659            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9660                    pkg.splitCodePaths);
9661
9662            // Reflect the rename in app info
9663            pkg.applicationInfo.setCodePath(pkg.codePath);
9664            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9665            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9666            pkg.applicationInfo.setResourcePath(pkg.codePath);
9667            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9668            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9669
9670            return true;
9671        }
9672
9673        private void setMountPath(String mountPath) {
9674            final File mountFile = new File(mountPath);
9675
9676            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9677            if (monolithicFile.exists()) {
9678                packagePath = monolithicFile.getAbsolutePath();
9679                if (isFwdLocked()) {
9680                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9681                } else {
9682                    resourcePath = packagePath;
9683                }
9684            } else {
9685                packagePath = mountFile.getAbsolutePath();
9686                resourcePath = packagePath;
9687            }
9688
9689            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9690        }
9691
9692        int doPostInstall(int status, int uid) {
9693            if (status != PackageManager.INSTALL_SUCCEEDED) {
9694                cleanUp();
9695            } else {
9696                final int groupOwner;
9697                final String protectedFile;
9698                if (isFwdLocked()) {
9699                    groupOwner = UserHandle.getSharedAppGid(uid);
9700                    protectedFile = RES_FILE_NAME;
9701                } else {
9702                    groupOwner = -1;
9703                    protectedFile = null;
9704                }
9705
9706                if (uid < Process.FIRST_APPLICATION_UID
9707                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9708                    Slog.e(TAG, "Failed to finalize " + cid);
9709                    PackageHelper.destroySdDir(cid);
9710                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9711                }
9712
9713                boolean mounted = PackageHelper.isContainerMounted(cid);
9714                if (!mounted) {
9715                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9716                }
9717            }
9718            return status;
9719        }
9720
9721        private void cleanUp() {
9722            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9723
9724            // Destroy secure container
9725            PackageHelper.destroySdDir(cid);
9726        }
9727
9728        private List<String> getAllCodePaths() {
9729            final File codeFile = new File(getCodePath());
9730            if (codeFile != null && codeFile.exists()) {
9731                try {
9732                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9733                    return pkg.getAllCodePaths();
9734                } catch (PackageParserException e) {
9735                    // Ignored; we tried our best
9736                }
9737            }
9738            return Collections.EMPTY_LIST;
9739        }
9740
9741        void cleanUpResourcesLI() {
9742            // Enumerate all code paths before deleting
9743            cleanUpResourcesLI(getAllCodePaths());
9744        }
9745
9746        private void cleanUpResourcesLI(List<String> allCodePaths) {
9747            cleanUp();
9748            removeDexFiles(allCodePaths, instructionSets);
9749        }
9750
9751
9752
9753        String getPackageName() {
9754            return getAsecPackageName(cid);
9755        }
9756
9757        boolean doPostDeleteLI(boolean delete) {
9758            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9759            final List<String> allCodePaths = getAllCodePaths();
9760            boolean mounted = PackageHelper.isContainerMounted(cid);
9761            if (mounted) {
9762                // Unmount first
9763                if (PackageHelper.unMountSdDir(cid)) {
9764                    mounted = false;
9765                }
9766            }
9767            if (!mounted && delete) {
9768                cleanUpResourcesLI(allCodePaths);
9769            }
9770            return !mounted;
9771        }
9772
9773        @Override
9774        int doPreCopy() {
9775            if (isFwdLocked()) {
9776                if (!PackageHelper.fixSdPermissions(cid,
9777                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9778                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9779                }
9780            }
9781
9782            return PackageManager.INSTALL_SUCCEEDED;
9783        }
9784
9785        @Override
9786        int doPostCopy(int uid) {
9787            if (isFwdLocked()) {
9788                if (uid < Process.FIRST_APPLICATION_UID
9789                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9790                                RES_FILE_NAME)) {
9791                    Slog.e(TAG, "Failed to finalize " + cid);
9792                    PackageHelper.destroySdDir(cid);
9793                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9794                }
9795            }
9796
9797            return PackageManager.INSTALL_SUCCEEDED;
9798        }
9799    }
9800
9801    static String getAsecPackageName(String packageCid) {
9802        int idx = packageCid.lastIndexOf("-");
9803        if (idx == -1) {
9804            return packageCid;
9805        }
9806        return packageCid.substring(0, idx);
9807    }
9808
9809    // Utility method used to create code paths based on package name and available index.
9810    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9811        String idxStr = "";
9812        int idx = 1;
9813        // Fall back to default value of idx=1 if prefix is not
9814        // part of oldCodePath
9815        if (oldCodePath != null) {
9816            String subStr = oldCodePath;
9817            // Drop the suffix right away
9818            if (suffix != null && subStr.endsWith(suffix)) {
9819                subStr = subStr.substring(0, subStr.length() - suffix.length());
9820            }
9821            // If oldCodePath already contains prefix find out the
9822            // ending index to either increment or decrement.
9823            int sidx = subStr.lastIndexOf(prefix);
9824            if (sidx != -1) {
9825                subStr = subStr.substring(sidx + prefix.length());
9826                if (subStr != null) {
9827                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9828                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9829                    }
9830                    try {
9831                        idx = Integer.parseInt(subStr);
9832                        if (idx <= 1) {
9833                            idx++;
9834                        } else {
9835                            idx--;
9836                        }
9837                    } catch(NumberFormatException e) {
9838                    }
9839                }
9840            }
9841        }
9842        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9843        return prefix + idxStr;
9844    }
9845
9846    private File getNextCodePath(String packageName) {
9847        int suffix = 1;
9848        File result;
9849        do {
9850            result = new File(mAppInstallDir, packageName + "-" + suffix);
9851            suffix++;
9852        } while (result.exists());
9853        return result;
9854    }
9855
9856    // Utility method used to ignore ADD/REMOVE events
9857    // by directory observer.
9858    private static boolean ignoreCodePath(String fullPathStr) {
9859        String apkName = deriveCodePathName(fullPathStr);
9860        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9861        if (idx != -1 && ((idx+1) < apkName.length())) {
9862            // Make sure the package ends with a numeral
9863            String version = apkName.substring(idx+1);
9864            try {
9865                Integer.parseInt(version);
9866                return true;
9867            } catch (NumberFormatException e) {}
9868        }
9869        return false;
9870    }
9871
9872    // Utility method that returns the relative package path with respect
9873    // to the installation directory. Like say for /data/data/com.test-1.apk
9874    // string com.test-1 is returned.
9875    static String deriveCodePathName(String codePath) {
9876        if (codePath == null) {
9877            return null;
9878        }
9879        final File codeFile = new File(codePath);
9880        final String name = codeFile.getName();
9881        if (codeFile.isDirectory()) {
9882            return name;
9883        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9884            final int lastDot = name.lastIndexOf('.');
9885            return name.substring(0, lastDot);
9886        } else {
9887            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9888            return null;
9889        }
9890    }
9891
9892    class PackageInstalledInfo {
9893        String name;
9894        int uid;
9895        // The set of users that originally had this package installed.
9896        int[] origUsers;
9897        // The set of users that now have this package installed.
9898        int[] newUsers;
9899        PackageParser.Package pkg;
9900        int returnCode;
9901        String returnMsg;
9902        PackageRemovedInfo removedInfo;
9903
9904        public void setError(int code, String msg) {
9905            returnCode = code;
9906            returnMsg = msg;
9907            Slog.w(TAG, msg);
9908        }
9909
9910        public void setError(String msg, PackageParserException e) {
9911            returnCode = e.error;
9912            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9913            Slog.w(TAG, msg, e);
9914        }
9915
9916        public void setError(String msg, PackageManagerException e) {
9917            returnCode = e.error;
9918            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9919            Slog.w(TAG, msg, e);
9920        }
9921
9922        // In some error cases we want to convey more info back to the observer
9923        String origPackage;
9924        String origPermission;
9925    }
9926
9927    /*
9928     * Install a non-existing package.
9929     */
9930    private void installNewPackageLI(PackageParser.Package pkg,
9931            int parseFlags, int scanFlags, UserHandle user,
9932            String installerPackageName, PackageInstalledInfo res) {
9933        // Remember this for later, in case we need to rollback this install
9934        String pkgName = pkg.packageName;
9935
9936        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9937        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9938        synchronized(mPackages) {
9939            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9940                // A package with the same name is already installed, though
9941                // it has been renamed to an older name.  The package we
9942                // are trying to install should be installed as an update to
9943                // the existing one, but that has not been requested, so bail.
9944                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9945                        + " without first uninstalling package running as "
9946                        + mSettings.mRenamedPackages.get(pkgName));
9947                return;
9948            }
9949            if (mPackages.containsKey(pkgName)) {
9950                // Don't allow installation over an existing package with the same name.
9951                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9952                        + " without first uninstalling.");
9953                return;
9954            }
9955        }
9956
9957        try {
9958            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9959                    System.currentTimeMillis(), user);
9960
9961            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9962            // delete the partially installed application. the data directory will have to be
9963            // restored if it was already existing
9964            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
9965                // remove package from internal structures.  Note that we want deletePackageX to
9966                // delete the package data and cache directories that it created in
9967                // scanPackageLocked, unless those directories existed before we even tried to
9968                // install.
9969                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
9970                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
9971                                res.removedInfo, true);
9972            }
9973
9974        } catch (PackageManagerException e) {
9975            res.setError("Package couldn't be installed in " + pkg.codePath, e);
9976        }
9977    }
9978
9979    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
9980        // Upgrade keysets are being used.  Determine if new package has a superset of the
9981        // required keys.
9982        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
9983        KeySetManagerService ksms = mSettings.mKeySetManagerService;
9984        for (int i = 0; i < upgradeKeySets.length; i++) {
9985            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
9986            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
9987                return true;
9988            }
9989        }
9990        return false;
9991    }
9992
9993    private void replacePackageLI(PackageParser.Package pkg,
9994            int parseFlags, int scanFlags, UserHandle user,
9995            String installerPackageName, PackageInstalledInfo res) {
9996        PackageParser.Package oldPackage;
9997        String pkgName = pkg.packageName;
9998        int[] allUsers;
9999        boolean[] perUserInstalled;
10000
10001        // First find the old package info and check signatures
10002        synchronized(mPackages) {
10003            oldPackage = mPackages.get(pkgName);
10004            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10005            PackageSetting ps = mSettings.mPackages.get(pkgName);
10006            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10007                // default to original signature matching
10008                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10009                    != PackageManager.SIGNATURE_MATCH) {
10010                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10011                            "New package has a different signature: " + pkgName);
10012                    return;
10013                }
10014            } else {
10015                if(!checkUpgradeKeySetLP(ps, pkg)) {
10016                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10017                            "New package not signed by keys specified by upgrade-keysets: "
10018                            + pkgName);
10019                    return;
10020                }
10021            }
10022
10023            // In case of rollback, remember per-user/profile install state
10024            allUsers = sUserManager.getUserIds();
10025            perUserInstalled = new boolean[allUsers.length];
10026            for (int i = 0; i < allUsers.length; i++) {
10027                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10028            }
10029        }
10030
10031        boolean sysPkg = (isSystemApp(oldPackage));
10032        if (sysPkg) {
10033            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10034                    user, allUsers, perUserInstalled, installerPackageName, res);
10035        } else {
10036            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10037                    user, allUsers, perUserInstalled, installerPackageName, res);
10038        }
10039    }
10040
10041    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10042            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10043            int[] allUsers, boolean[] perUserInstalled,
10044            String installerPackageName, PackageInstalledInfo res) {
10045        String pkgName = deletedPackage.packageName;
10046        boolean deletedPkg = true;
10047        boolean updatedSettings = false;
10048
10049        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10050                + deletedPackage);
10051        long origUpdateTime;
10052        if (pkg.mExtras != null) {
10053            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10054        } else {
10055            origUpdateTime = 0;
10056        }
10057
10058        // First delete the existing package while retaining the data directory
10059        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10060                res.removedInfo, true)) {
10061            // If the existing package wasn't successfully deleted
10062            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10063            deletedPkg = false;
10064        } else {
10065            // Successfully deleted the old package; proceed with replace.
10066
10067            // If deleted package lived in a container, give users a chance to
10068            // relinquish resources before killing.
10069            if (deletedPackage.isForwardLocked() || isExternal(deletedPackage)) {
10070                if (DEBUG_INSTALL) {
10071                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10072                }
10073                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10074                final ArrayList<String> pkgList = new ArrayList<String>(1);
10075                pkgList.add(deletedPackage.applicationInfo.packageName);
10076                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10077            }
10078
10079            deleteCodeCacheDirsLI(pkgName);
10080            try {
10081                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10082                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10083                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10084                updatedSettings = true;
10085            } catch (PackageManagerException e) {
10086                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10087            }
10088        }
10089
10090        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10091            // remove package from internal structures.  Note that we want deletePackageX to
10092            // delete the package data and cache directories that it created in
10093            // scanPackageLocked, unless those directories existed before we even tried to
10094            // install.
10095            if(updatedSettings) {
10096                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10097                deletePackageLI(
10098                        pkgName, null, true, allUsers, perUserInstalled,
10099                        PackageManager.DELETE_KEEP_DATA,
10100                                res.removedInfo, true);
10101            }
10102            // Since we failed to install the new package we need to restore the old
10103            // package that we deleted.
10104            if (deletedPkg) {
10105                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10106                File restoreFile = new File(deletedPackage.codePath);
10107                // Parse old package
10108                boolean oldOnSd = isExternal(deletedPackage);
10109                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10110                        (deletedPackage.isForwardLocked() ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10111                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10112                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10113                try {
10114                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10115                } catch (PackageManagerException e) {
10116                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10117                            + e.getMessage());
10118                    return;
10119                }
10120                // Restore of old package succeeded. Update permissions.
10121                // writer
10122                synchronized (mPackages) {
10123                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10124                            UPDATE_PERMISSIONS_ALL);
10125                    // can downgrade to reader
10126                    mSettings.writeLPr();
10127                }
10128                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10129            }
10130        }
10131    }
10132
10133    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10134            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10135            int[] allUsers, boolean[] perUserInstalled,
10136            String installerPackageName, PackageInstalledInfo res) {
10137        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10138                + ", old=" + deletedPackage);
10139        boolean disabledSystem = false;
10140        boolean updatedSettings = false;
10141        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10142        if ((deletedPackage.applicationInfo.privateFlags&ApplicationInfo.PRIVATE_FLAG_PRIVILEGED)
10143                != 0) {
10144            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10145        }
10146        String packageName = deletedPackage.packageName;
10147        if (packageName == null) {
10148            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10149                    "Attempt to delete null packageName.");
10150            return;
10151        }
10152        PackageParser.Package oldPkg;
10153        PackageSetting oldPkgSetting;
10154        // reader
10155        synchronized (mPackages) {
10156            oldPkg = mPackages.get(packageName);
10157            oldPkgSetting = mSettings.mPackages.get(packageName);
10158            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10159                    (oldPkgSetting == null)) {
10160                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10161                        "Couldn't find package:" + packageName + " information");
10162                return;
10163            }
10164        }
10165
10166        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10167
10168        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10169        res.removedInfo.removedPackage = packageName;
10170        // Remove existing system package
10171        removePackageLI(oldPkgSetting, true);
10172        // writer
10173        synchronized (mPackages) {
10174            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10175            if (!disabledSystem && deletedPackage != null) {
10176                // We didn't need to disable the .apk as a current system package,
10177                // which means we are replacing another update that is already
10178                // installed.  We need to make sure to delete the older one's .apk.
10179                res.removedInfo.args = createInstallArgsForExisting(0,
10180                        deletedPackage.applicationInfo.getCodePath(),
10181                        deletedPackage.applicationInfo.getResourcePath(),
10182                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10183                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10184            } else {
10185                res.removedInfo.args = null;
10186            }
10187        }
10188
10189        // Successfully disabled the old package. Now proceed with re-installation
10190        deleteCodeCacheDirsLI(packageName);
10191
10192        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10193        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10194
10195        PackageParser.Package newPackage = null;
10196        try {
10197            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10198            if (newPackage.mExtras != null) {
10199                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10200                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10201                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10202
10203                // is the update attempting to change shared user? that isn't going to work...
10204                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10205                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10206                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10207                            + " to " + newPkgSetting.sharedUser);
10208                    updatedSettings = true;
10209                }
10210            }
10211
10212            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10213                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10214                updatedSettings = true;
10215            }
10216
10217        } catch (PackageManagerException e) {
10218            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10219        }
10220
10221        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10222            // Re installation failed. Restore old information
10223            // Remove new pkg information
10224            if (newPackage != null) {
10225                removeInstalledPackageLI(newPackage, true);
10226            }
10227            // Add back the old system package
10228            try {
10229                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10230            } catch (PackageManagerException e) {
10231                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10232            }
10233            // Restore the old system information in Settings
10234            synchronized (mPackages) {
10235                if (disabledSystem) {
10236                    mSettings.enableSystemPackageLPw(packageName);
10237                }
10238                if (updatedSettings) {
10239                    mSettings.setInstallerPackageName(packageName,
10240                            oldPkgSetting.installerPackageName);
10241                }
10242                mSettings.writeLPr();
10243            }
10244        }
10245    }
10246
10247    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10248            int[] allUsers, boolean[] perUserInstalled,
10249            PackageInstalledInfo res) {
10250        String pkgName = newPackage.packageName;
10251        synchronized (mPackages) {
10252            //write settings. the installStatus will be incomplete at this stage.
10253            //note that the new package setting would have already been
10254            //added to mPackages. It hasn't been persisted yet.
10255            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10256            mSettings.writeLPr();
10257        }
10258
10259        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10260
10261        synchronized (mPackages) {
10262            updatePermissionsLPw(newPackage.packageName, newPackage,
10263                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10264                            ? UPDATE_PERMISSIONS_ALL : 0));
10265            // For system-bundled packages, we assume that installing an upgraded version
10266            // of the package implies that the user actually wants to run that new code,
10267            // so we enable the package.
10268            if (isSystemApp(newPackage)) {
10269                // NB: implicit assumption that system package upgrades apply to all users
10270                if (DEBUG_INSTALL) {
10271                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10272                }
10273                PackageSetting ps = mSettings.mPackages.get(pkgName);
10274                if (ps != null) {
10275                    if (res.origUsers != null) {
10276                        for (int userHandle : res.origUsers) {
10277                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10278                                    userHandle, installerPackageName);
10279                        }
10280                    }
10281                    // Also convey the prior install/uninstall state
10282                    if (allUsers != null && perUserInstalled != null) {
10283                        for (int i = 0; i < allUsers.length; i++) {
10284                            if (DEBUG_INSTALL) {
10285                                Slog.d(TAG, "    user " + allUsers[i]
10286                                        + " => " + perUserInstalled[i]);
10287                            }
10288                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10289                        }
10290                        // these install state changes will be persisted in the
10291                        // upcoming call to mSettings.writeLPr().
10292                    }
10293                }
10294            }
10295            res.name = pkgName;
10296            res.uid = newPackage.applicationInfo.uid;
10297            res.pkg = newPackage;
10298            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10299            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10300            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10301            //to update install status
10302            mSettings.writeLPr();
10303        }
10304    }
10305
10306    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10307        final int installFlags = args.installFlags;
10308        String installerPackageName = args.installerPackageName;
10309        File tmpPackageFile = new File(args.getCodePath());
10310        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10311        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10312        boolean replace = false;
10313        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10314        // Result object to be returned
10315        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10316
10317        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10318        // Retrieve PackageSettings and parse package
10319        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10320                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10321                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10322        PackageParser pp = new PackageParser();
10323        pp.setSeparateProcesses(mSeparateProcesses);
10324        pp.setDisplayMetrics(mMetrics);
10325
10326        final PackageParser.Package pkg;
10327        try {
10328            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10329        } catch (PackageParserException e) {
10330            res.setError("Failed parse during installPackageLI", e);
10331            return;
10332        }
10333
10334        // Mark that we have an install time CPU ABI override.
10335        pkg.cpuAbiOverride = args.abiOverride;
10336
10337        String pkgName = res.name = pkg.packageName;
10338        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10339            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10340                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10341                return;
10342            }
10343        }
10344
10345        try {
10346            pp.collectCertificates(pkg, parseFlags);
10347            pp.collectManifestDigest(pkg);
10348        } catch (PackageParserException e) {
10349            res.setError("Failed collect during installPackageLI", e);
10350            return;
10351        }
10352
10353        /* If the installer passed in a manifest digest, compare it now. */
10354        if (args.manifestDigest != null) {
10355            if (DEBUG_INSTALL) {
10356                final String parsedManifest = pkg.manifestDigest == null ? "null"
10357                        : pkg.manifestDigest.toString();
10358                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10359                        + parsedManifest);
10360            }
10361
10362            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10363                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10364                return;
10365            }
10366        } else if (DEBUG_INSTALL) {
10367            final String parsedManifest = pkg.manifestDigest == null
10368                    ? "null" : pkg.manifestDigest.toString();
10369            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10370        }
10371
10372        // Get rid of all references to package scan path via parser.
10373        pp = null;
10374        String oldCodePath = null;
10375        boolean systemApp = false;
10376        synchronized (mPackages) {
10377            // Check if installing already existing package
10378            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10379                String oldName = mSettings.mRenamedPackages.get(pkgName);
10380                if (pkg.mOriginalPackages != null
10381                        && pkg.mOriginalPackages.contains(oldName)
10382                        && mPackages.containsKey(oldName)) {
10383                    // This package is derived from an original package,
10384                    // and this device has been updating from that original
10385                    // name.  We must continue using the original name, so
10386                    // rename the new package here.
10387                    pkg.setPackageName(oldName);
10388                    pkgName = pkg.packageName;
10389                    replace = true;
10390                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10391                            + oldName + " pkgName=" + pkgName);
10392                } else if (mPackages.containsKey(pkgName)) {
10393                    // This package, under its official name, already exists
10394                    // on the device; we should replace it.
10395                    replace = true;
10396                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10397                }
10398            }
10399
10400            PackageSetting ps = mSettings.mPackages.get(pkgName);
10401            if (ps != null) {
10402                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10403
10404                // Quick sanity check that we're signed correctly if updating;
10405                // we'll check this again later when scanning, but we want to
10406                // bail early here before tripping over redefined permissions.
10407                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10408                    try {
10409                        verifySignaturesLP(ps, pkg);
10410                    } catch (PackageManagerException e) {
10411                        res.setError(e.error, e.getMessage());
10412                        return;
10413                    }
10414                } else {
10415                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10416                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10417                                + pkg.packageName + " upgrade keys do not match the "
10418                                + "previously installed version");
10419                        return;
10420                    }
10421                }
10422
10423                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10424                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10425                    systemApp = (ps.pkg.applicationInfo.flags &
10426                            ApplicationInfo.FLAG_SYSTEM) != 0;
10427                }
10428                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10429            }
10430
10431            // Check whether the newly-scanned package wants to define an already-defined perm
10432            int N = pkg.permissions.size();
10433            for (int i = N-1; i >= 0; i--) {
10434                PackageParser.Permission perm = pkg.permissions.get(i);
10435                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10436                if (bp != null) {
10437                    // If the defining package is signed with our cert, it's okay.  This
10438                    // also includes the "updating the same package" case, of course.
10439                    // "updating same package" could also involve key-rotation.
10440                    final boolean sigsOk;
10441                    if (!bp.sourcePackage.equals(pkg.packageName)
10442                            || !(bp.packageSetting instanceof PackageSetting)
10443                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10444                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10445                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10446                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10447                    } else {
10448                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10449                    }
10450                    if (!sigsOk) {
10451                        // If the owning package is the system itself, we log but allow
10452                        // install to proceed; we fail the install on all other permission
10453                        // redefinitions.
10454                        if (!bp.sourcePackage.equals("android")) {
10455                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10456                                    + pkg.packageName + " attempting to redeclare permission "
10457                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10458                            res.origPermission = perm.info.name;
10459                            res.origPackage = bp.sourcePackage;
10460                            return;
10461                        } else {
10462                            Slog.w(TAG, "Package " + pkg.packageName
10463                                    + " attempting to redeclare system permission "
10464                                    + perm.info.name + "; ignoring new declaration");
10465                            pkg.permissions.remove(i);
10466                        }
10467                    }
10468                }
10469            }
10470
10471        }
10472
10473        if (systemApp && onSd) {
10474            // Disable updates to system apps on sdcard
10475            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10476                    "Cannot install updates to system apps on sdcard");
10477            return;
10478        }
10479
10480        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10481            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10482            return;
10483        }
10484
10485        if (replace) {
10486            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10487                    installerPackageName, res);
10488        } else {
10489            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10490                    args.user, installerPackageName, res);
10491        }
10492        synchronized (mPackages) {
10493            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10494            if (ps != null) {
10495                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10496            }
10497        }
10498    }
10499
10500    private static boolean isMultiArch(PackageSetting ps) {
10501        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10502    }
10503
10504    private static boolean isMultiArch(ApplicationInfo info) {
10505        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10506    }
10507
10508    private static boolean isExternal(PackageParser.Package pkg) {
10509        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10510    }
10511
10512    private static boolean isExternal(PackageSetting ps) {
10513        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10514    }
10515
10516    private static boolean isExternal(ApplicationInfo info) {
10517        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10518    }
10519
10520    private static boolean isSystemApp(PackageParser.Package pkg) {
10521        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10522    }
10523
10524    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10525        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0;
10526    }
10527
10528    private static boolean isSystemApp(ApplicationInfo info) {
10529        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10530    }
10531
10532    private static boolean isSystemApp(PackageSetting ps) {
10533        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10534    }
10535
10536    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10537        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10538    }
10539
10540    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10541        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10542    }
10543
10544    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10545        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10546    }
10547
10548    private int packageFlagsToInstallFlags(PackageSetting ps) {
10549        int installFlags = 0;
10550        if (isExternal(ps)) {
10551            installFlags |= PackageManager.INSTALL_EXTERNAL;
10552        }
10553        if (ps.isForwardLocked()) {
10554            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10555        }
10556        return installFlags;
10557    }
10558
10559    private void deleteTempPackageFiles() {
10560        final FilenameFilter filter = new FilenameFilter() {
10561            public boolean accept(File dir, String name) {
10562                return name.startsWith("vmdl") && name.endsWith(".tmp");
10563            }
10564        };
10565        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10566            file.delete();
10567        }
10568    }
10569
10570    @Override
10571    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10572            int flags) {
10573        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10574                flags);
10575    }
10576
10577    @Override
10578    public void deletePackage(final String packageName,
10579            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10580        mContext.enforceCallingOrSelfPermission(
10581                android.Manifest.permission.DELETE_PACKAGES, null);
10582        final int uid = Binder.getCallingUid();
10583        if (UserHandle.getUserId(uid) != userId) {
10584            mContext.enforceCallingPermission(
10585                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10586                    "deletePackage for user " + userId);
10587        }
10588        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10589            try {
10590                observer.onPackageDeleted(packageName,
10591                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10592            } catch (RemoteException re) {
10593            }
10594            return;
10595        }
10596
10597        boolean uninstallBlocked = false;
10598        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10599            int[] users = sUserManager.getUserIds();
10600            for (int i = 0; i < users.length; ++i) {
10601                if (getBlockUninstallForUser(packageName, users[i])) {
10602                    uninstallBlocked = true;
10603                    break;
10604                }
10605            }
10606        } else {
10607            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10608        }
10609        if (uninstallBlocked) {
10610            try {
10611                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10612                        null);
10613            } catch (RemoteException re) {
10614            }
10615            return;
10616        }
10617
10618        if (DEBUG_REMOVE) {
10619            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10620        }
10621        // Queue up an async operation since the package deletion may take a little while.
10622        mHandler.post(new Runnable() {
10623            public void run() {
10624                mHandler.removeCallbacks(this);
10625                final int returnCode = deletePackageX(packageName, userId, flags);
10626                if (observer != null) {
10627                    try {
10628                        observer.onPackageDeleted(packageName, returnCode, null);
10629                    } catch (RemoteException e) {
10630                        Log.i(TAG, "Observer no longer exists.");
10631                    } //end catch
10632                } //end if
10633            } //end run
10634        });
10635    }
10636
10637    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10638        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10639                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10640        try {
10641            if (dpm != null) {
10642                if (dpm.isDeviceOwner(packageName)) {
10643                    return true;
10644                }
10645                int[] users;
10646                if (userId == UserHandle.USER_ALL) {
10647                    users = sUserManager.getUserIds();
10648                } else {
10649                    users = new int[]{userId};
10650                }
10651                for (int i = 0; i < users.length; ++i) {
10652                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10653                        return true;
10654                    }
10655                }
10656            }
10657        } catch (RemoteException e) {
10658        }
10659        return false;
10660    }
10661
10662    /**
10663     *  This method is an internal method that could be get invoked either
10664     *  to delete an installed package or to clean up a failed installation.
10665     *  After deleting an installed package, a broadcast is sent to notify any
10666     *  listeners that the package has been installed. For cleaning up a failed
10667     *  installation, the broadcast is not necessary since the package's
10668     *  installation wouldn't have sent the initial broadcast either
10669     *  The key steps in deleting a package are
10670     *  deleting the package information in internal structures like mPackages,
10671     *  deleting the packages base directories through installd
10672     *  updating mSettings to reflect current status
10673     *  persisting settings for later use
10674     *  sending a broadcast if necessary
10675     */
10676    private int deletePackageX(String packageName, int userId, int flags) {
10677        final PackageRemovedInfo info = new PackageRemovedInfo();
10678        final boolean res;
10679
10680        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10681                ? UserHandle.ALL : new UserHandle(userId);
10682
10683        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10684            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10685            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10686        }
10687
10688        boolean removedForAllUsers = false;
10689        boolean systemUpdate = false;
10690
10691        // for the uninstall-updates case and restricted profiles, remember the per-
10692        // userhandle installed state
10693        int[] allUsers;
10694        boolean[] perUserInstalled;
10695        synchronized (mPackages) {
10696            PackageSetting ps = mSettings.mPackages.get(packageName);
10697            allUsers = sUserManager.getUserIds();
10698            perUserInstalled = new boolean[allUsers.length];
10699            for (int i = 0; i < allUsers.length; i++) {
10700                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10701            }
10702        }
10703
10704        synchronized (mInstallLock) {
10705            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10706            res = deletePackageLI(packageName, removeForUser,
10707                    true, allUsers, perUserInstalled,
10708                    flags | REMOVE_CHATTY, info, true);
10709            systemUpdate = info.isRemovedPackageSystemUpdate;
10710            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10711                removedForAllUsers = true;
10712            }
10713            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10714                    + " removedForAllUsers=" + removedForAllUsers);
10715        }
10716
10717        if (res) {
10718            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10719
10720            // If the removed package was a system update, the old system package
10721            // was re-enabled; we need to broadcast this information
10722            if (systemUpdate) {
10723                Bundle extras = new Bundle(1);
10724                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10725                        ? info.removedAppId : info.uid);
10726                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10727
10728                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10729                        extras, null, null, null);
10730                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10731                        extras, null, null, null);
10732                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10733                        null, packageName, null, null);
10734            }
10735        }
10736        // Force a gc here.
10737        Runtime.getRuntime().gc();
10738        // Delete the resources here after sending the broadcast to let
10739        // other processes clean up before deleting resources.
10740        if (info.args != null) {
10741            synchronized (mInstallLock) {
10742                info.args.doPostDeleteLI(true);
10743            }
10744        }
10745
10746        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10747    }
10748
10749    static class PackageRemovedInfo {
10750        String removedPackage;
10751        int uid = -1;
10752        int removedAppId = -1;
10753        int[] removedUsers = null;
10754        boolean isRemovedPackageSystemUpdate = false;
10755        // Clean up resources deleted packages.
10756        InstallArgs args = null;
10757
10758        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10759            Bundle extras = new Bundle(1);
10760            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10761            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10762            if (replacing) {
10763                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10764            }
10765            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10766            if (removedPackage != null) {
10767                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10768                        extras, null, null, removedUsers);
10769                if (fullRemove && !replacing) {
10770                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10771                            extras, null, null, removedUsers);
10772                }
10773            }
10774            if (removedAppId >= 0) {
10775                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10776                        removedUsers);
10777            }
10778        }
10779    }
10780
10781    /*
10782     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10783     * flag is not set, the data directory is removed as well.
10784     * make sure this flag is set for partially installed apps. If not its meaningless to
10785     * delete a partially installed application.
10786     */
10787    private void removePackageDataLI(PackageSetting ps,
10788            int[] allUserHandles, boolean[] perUserInstalled,
10789            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10790        String packageName = ps.name;
10791        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10792        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10793        // Retrieve object to delete permissions for shared user later on
10794        final PackageSetting deletedPs;
10795        // reader
10796        synchronized (mPackages) {
10797            deletedPs = mSettings.mPackages.get(packageName);
10798            if (outInfo != null) {
10799                outInfo.removedPackage = packageName;
10800                outInfo.removedUsers = deletedPs != null
10801                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10802                        : null;
10803            }
10804        }
10805        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10806            removeDataDirsLI(packageName);
10807            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10808        }
10809        // writer
10810        synchronized (mPackages) {
10811            if (deletedPs != null) {
10812                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10813                    if (outInfo != null) {
10814                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10815                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10816                    }
10817                    if (deletedPs != null) {
10818                        updatePermissionsLPw(deletedPs.name, null, 0);
10819                        if (deletedPs.sharedUser != null) {
10820                            // remove permissions associated with package
10821                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10822                        }
10823                    }
10824                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10825                }
10826                // make sure to preserve per-user disabled state if this removal was just
10827                // a downgrade of a system app to the factory package
10828                if (allUserHandles != null && perUserInstalled != null) {
10829                    if (DEBUG_REMOVE) {
10830                        Slog.d(TAG, "Propagating install state across downgrade");
10831                    }
10832                    for (int i = 0; i < allUserHandles.length; i++) {
10833                        if (DEBUG_REMOVE) {
10834                            Slog.d(TAG, "    user " + allUserHandles[i]
10835                                    + " => " + perUserInstalled[i]);
10836                        }
10837                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10838                    }
10839                }
10840            }
10841            // can downgrade to reader
10842            if (writeSettings) {
10843                // Save settings now
10844                mSettings.writeLPr();
10845            }
10846        }
10847        if (outInfo != null) {
10848            // A user ID was deleted here. Go through all users and remove it
10849            // from KeyStore.
10850            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10851        }
10852    }
10853
10854    static boolean locationIsPrivileged(File path) {
10855        try {
10856            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10857                    .getCanonicalPath();
10858            return path.getCanonicalPath().startsWith(privilegedAppDir);
10859        } catch (IOException e) {
10860            Slog.e(TAG, "Unable to access code path " + path);
10861        }
10862        return false;
10863    }
10864
10865    /*
10866     * Tries to delete system package.
10867     */
10868    private boolean deleteSystemPackageLI(PackageSetting newPs,
10869            int[] allUserHandles, boolean[] perUserInstalled,
10870            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10871        final boolean applyUserRestrictions
10872                = (allUserHandles != null) && (perUserInstalled != null);
10873        PackageSetting disabledPs = null;
10874        // Confirm if the system package has been updated
10875        // An updated system app can be deleted. This will also have to restore
10876        // the system pkg from system partition
10877        // reader
10878        synchronized (mPackages) {
10879            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10880        }
10881        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10882                + " disabledPs=" + disabledPs);
10883        if (disabledPs == null) {
10884            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10885            return false;
10886        } else if (DEBUG_REMOVE) {
10887            Slog.d(TAG, "Deleting system pkg from data partition");
10888        }
10889        if (DEBUG_REMOVE) {
10890            if (applyUserRestrictions) {
10891                Slog.d(TAG, "Remembering install states:");
10892                for (int i = 0; i < allUserHandles.length; i++) {
10893                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10894                }
10895            }
10896        }
10897        // Delete the updated package
10898        outInfo.isRemovedPackageSystemUpdate = true;
10899        if (disabledPs.versionCode < newPs.versionCode) {
10900            // Delete data for downgrades
10901            flags &= ~PackageManager.DELETE_KEEP_DATA;
10902        } else {
10903            // Preserve data by setting flag
10904            flags |= PackageManager.DELETE_KEEP_DATA;
10905        }
10906        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10907                allUserHandles, perUserInstalled, outInfo, writeSettings);
10908        if (!ret) {
10909            return false;
10910        }
10911        // writer
10912        synchronized (mPackages) {
10913            // Reinstate the old system package
10914            mSettings.enableSystemPackageLPw(newPs.name);
10915            // Remove any native libraries from the upgraded package.
10916            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10917        }
10918        // Install the system package
10919        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10920        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10921        if (locationIsPrivileged(disabledPs.codePath)) {
10922            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10923        }
10924
10925        final PackageParser.Package newPkg;
10926        try {
10927            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10928        } catch (PackageManagerException e) {
10929            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10930            return false;
10931        }
10932
10933        // writer
10934        synchronized (mPackages) {
10935            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10936            updatePermissionsLPw(newPkg.packageName, newPkg,
10937                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10938            if (applyUserRestrictions) {
10939                if (DEBUG_REMOVE) {
10940                    Slog.d(TAG, "Propagating install state across reinstall");
10941                }
10942                for (int i = 0; i < allUserHandles.length; i++) {
10943                    if (DEBUG_REMOVE) {
10944                        Slog.d(TAG, "    user " + allUserHandles[i]
10945                                + " => " + perUserInstalled[i]);
10946                    }
10947                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10948                }
10949                // Regardless of writeSettings we need to ensure that this restriction
10950                // state propagation is persisted
10951                mSettings.writeAllUsersPackageRestrictionsLPr();
10952            }
10953            // can downgrade to reader here
10954            if (writeSettings) {
10955                mSettings.writeLPr();
10956            }
10957        }
10958        return true;
10959    }
10960
10961    private boolean deleteInstalledPackageLI(PackageSetting ps,
10962            boolean deleteCodeAndResources, int flags,
10963            int[] allUserHandles, boolean[] perUserInstalled,
10964            PackageRemovedInfo outInfo, boolean writeSettings) {
10965        if (outInfo != null) {
10966            outInfo.uid = ps.appId;
10967        }
10968
10969        // Delete package data from internal structures and also remove data if flag is set
10970        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10971
10972        // Delete application code and resources
10973        if (deleteCodeAndResources && (outInfo != null)) {
10974            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
10975                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
10976                    getAppDexInstructionSets(ps));
10977            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
10978        }
10979        return true;
10980    }
10981
10982    @Override
10983    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
10984            int userId) {
10985        mContext.enforceCallingOrSelfPermission(
10986                android.Manifest.permission.DELETE_PACKAGES, null);
10987        synchronized (mPackages) {
10988            PackageSetting ps = mSettings.mPackages.get(packageName);
10989            if (ps == null) {
10990                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
10991                return false;
10992            }
10993            if (!ps.getInstalled(userId)) {
10994                // Can't block uninstall for an app that is not installed or enabled.
10995                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
10996                return false;
10997            }
10998            ps.setBlockUninstall(blockUninstall, userId);
10999            mSettings.writePackageRestrictionsLPr(userId);
11000        }
11001        return true;
11002    }
11003
11004    @Override
11005    public boolean getBlockUninstallForUser(String packageName, int userId) {
11006        synchronized (mPackages) {
11007            PackageSetting ps = mSettings.mPackages.get(packageName);
11008            if (ps == null) {
11009                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11010                return false;
11011            }
11012            return ps.getBlockUninstall(userId);
11013        }
11014    }
11015
11016    /*
11017     * This method handles package deletion in general
11018     */
11019    private boolean deletePackageLI(String packageName, UserHandle user,
11020            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11021            int flags, PackageRemovedInfo outInfo,
11022            boolean writeSettings) {
11023        if (packageName == null) {
11024            Slog.w(TAG, "Attempt to delete null packageName.");
11025            return false;
11026        }
11027        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11028        PackageSetting ps;
11029        boolean dataOnly = false;
11030        int removeUser = -1;
11031        int appId = -1;
11032        synchronized (mPackages) {
11033            ps = mSettings.mPackages.get(packageName);
11034            if (ps == null) {
11035                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11036                return false;
11037            }
11038            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11039                    && user.getIdentifier() != UserHandle.USER_ALL) {
11040                // The caller is asking that the package only be deleted for a single
11041                // user.  To do this, we just mark its uninstalled state and delete
11042                // its data.  If this is a system app, we only allow this to happen if
11043                // they have set the special DELETE_SYSTEM_APP which requests different
11044                // semantics than normal for uninstalling system apps.
11045                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11046                ps.setUserState(user.getIdentifier(),
11047                        COMPONENT_ENABLED_STATE_DEFAULT,
11048                        false, //installed
11049                        true,  //stopped
11050                        true,  //notLaunched
11051                        false, //hidden
11052                        null, null, null,
11053                        false // blockUninstall
11054                        );
11055                if (!isSystemApp(ps)) {
11056                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11057                        // Other user still have this package installed, so all
11058                        // we need to do is clear this user's data and save that
11059                        // it is uninstalled.
11060                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11061                        removeUser = user.getIdentifier();
11062                        appId = ps.appId;
11063                        mSettings.writePackageRestrictionsLPr(removeUser);
11064                    } else {
11065                        // We need to set it back to 'installed' so the uninstall
11066                        // broadcasts will be sent correctly.
11067                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11068                        ps.setInstalled(true, user.getIdentifier());
11069                    }
11070                } else {
11071                    // This is a system app, so we assume that the
11072                    // other users still have this package installed, so all
11073                    // we need to do is clear this user's data and save that
11074                    // it is uninstalled.
11075                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11076                    removeUser = user.getIdentifier();
11077                    appId = ps.appId;
11078                    mSettings.writePackageRestrictionsLPr(removeUser);
11079                }
11080            }
11081        }
11082
11083        if (removeUser >= 0) {
11084            // From above, we determined that we are deleting this only
11085            // for a single user.  Continue the work here.
11086            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11087            if (outInfo != null) {
11088                outInfo.removedPackage = packageName;
11089                outInfo.removedAppId = appId;
11090                outInfo.removedUsers = new int[] {removeUser};
11091            }
11092            mInstaller.clearUserData(packageName, removeUser);
11093            removeKeystoreDataIfNeeded(removeUser, appId);
11094            schedulePackageCleaning(packageName, removeUser, false);
11095            return true;
11096        }
11097
11098        if (dataOnly) {
11099            // Delete application data first
11100            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11101            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11102            return true;
11103        }
11104
11105        boolean ret = false;
11106        if (isSystemApp(ps)) {
11107            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11108            // When an updated system application is deleted we delete the existing resources as well and
11109            // fall back to existing code in system partition
11110            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11111                    flags, outInfo, writeSettings);
11112        } else {
11113            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11114            // Kill application pre-emptively especially for apps on sd.
11115            killApplication(packageName, ps.appId, "uninstall pkg");
11116            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11117                    allUserHandles, perUserInstalled,
11118                    outInfo, writeSettings);
11119        }
11120
11121        return ret;
11122    }
11123
11124    private final class ClearStorageConnection implements ServiceConnection {
11125        IMediaContainerService mContainerService;
11126
11127        @Override
11128        public void onServiceConnected(ComponentName name, IBinder service) {
11129            synchronized (this) {
11130                mContainerService = IMediaContainerService.Stub.asInterface(service);
11131                notifyAll();
11132            }
11133        }
11134
11135        @Override
11136        public void onServiceDisconnected(ComponentName name) {
11137        }
11138    }
11139
11140    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11141        final boolean mounted;
11142        if (Environment.isExternalStorageEmulated()) {
11143            mounted = true;
11144        } else {
11145            final String status = Environment.getExternalStorageState();
11146
11147            mounted = status.equals(Environment.MEDIA_MOUNTED)
11148                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11149        }
11150
11151        if (!mounted) {
11152            return;
11153        }
11154
11155        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11156        int[] users;
11157        if (userId == UserHandle.USER_ALL) {
11158            users = sUserManager.getUserIds();
11159        } else {
11160            users = new int[] { userId };
11161        }
11162        final ClearStorageConnection conn = new ClearStorageConnection();
11163        if (mContext.bindServiceAsUser(
11164                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11165            try {
11166                for (int curUser : users) {
11167                    long timeout = SystemClock.uptimeMillis() + 5000;
11168                    synchronized (conn) {
11169                        long now = SystemClock.uptimeMillis();
11170                        while (conn.mContainerService == null && now < timeout) {
11171                            try {
11172                                conn.wait(timeout - now);
11173                            } catch (InterruptedException e) {
11174                            }
11175                        }
11176                    }
11177                    if (conn.mContainerService == null) {
11178                        return;
11179                    }
11180
11181                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11182                    clearDirectory(conn.mContainerService,
11183                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11184                    if (allData) {
11185                        clearDirectory(conn.mContainerService,
11186                                userEnv.buildExternalStorageAppDataDirs(packageName));
11187                        clearDirectory(conn.mContainerService,
11188                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11189                    }
11190                }
11191            } finally {
11192                mContext.unbindService(conn);
11193            }
11194        }
11195    }
11196
11197    @Override
11198    public void clearApplicationUserData(final String packageName,
11199            final IPackageDataObserver observer, final int userId) {
11200        mContext.enforceCallingOrSelfPermission(
11201                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11202        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11203        // Queue up an async operation since the package deletion may take a little while.
11204        mHandler.post(new Runnable() {
11205            public void run() {
11206                mHandler.removeCallbacks(this);
11207                final boolean succeeded;
11208                synchronized (mInstallLock) {
11209                    succeeded = clearApplicationUserDataLI(packageName, userId);
11210                }
11211                clearExternalStorageDataSync(packageName, userId, true);
11212                if (succeeded) {
11213                    // invoke DeviceStorageMonitor's update method to clear any notifications
11214                    DeviceStorageMonitorInternal
11215                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11216                    if (dsm != null) {
11217                        dsm.checkMemory();
11218                    }
11219                }
11220                if(observer != null) {
11221                    try {
11222                        observer.onRemoveCompleted(packageName, succeeded);
11223                    } catch (RemoteException e) {
11224                        Log.i(TAG, "Observer no longer exists.");
11225                    }
11226                } //end if observer
11227            } //end run
11228        });
11229    }
11230
11231    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11232        if (packageName == null) {
11233            Slog.w(TAG, "Attempt to delete null packageName.");
11234            return false;
11235        }
11236
11237        // Try finding details about the requested package
11238        PackageParser.Package pkg;
11239        synchronized (mPackages) {
11240            pkg = mPackages.get(packageName);
11241            if (pkg == null) {
11242                final PackageSetting ps = mSettings.mPackages.get(packageName);
11243                if (ps != null) {
11244                    pkg = ps.pkg;
11245                }
11246            }
11247        }
11248
11249        if (pkg == null) {
11250            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11251        }
11252
11253        // Always delete data directories for package, even if we found no other
11254        // record of app. This helps users recover from UID mismatches without
11255        // resorting to a full data wipe.
11256        int retCode = mInstaller.clearUserData(packageName, userId);
11257        if (retCode < 0) {
11258            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11259            return false;
11260        }
11261
11262        if (pkg == null) {
11263            return false;
11264        }
11265
11266        if (pkg != null && pkg.applicationInfo != null) {
11267            final int appId = pkg.applicationInfo.uid;
11268            removeKeystoreDataIfNeeded(userId, appId);
11269        }
11270
11271        // Create a native library symlink only if we have native libraries
11272        // and if the native libraries are 32 bit libraries. We do not provide
11273        // this symlink for 64 bit libraries.
11274        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11275                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11276            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11277            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11278                Slog.w(TAG, "Failed linking native library dir");
11279                return false;
11280            }
11281        }
11282
11283        return true;
11284    }
11285
11286    /**
11287     * Remove entries from the keystore daemon. Will only remove it if the
11288     * {@code appId} is valid.
11289     */
11290    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11291        if (appId < 0) {
11292            return;
11293        }
11294
11295        final KeyStore keyStore = KeyStore.getInstance();
11296        if (keyStore != null) {
11297            if (userId == UserHandle.USER_ALL) {
11298                for (final int individual : sUserManager.getUserIds()) {
11299                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11300                }
11301            } else {
11302                keyStore.clearUid(UserHandle.getUid(userId, appId));
11303            }
11304        } else {
11305            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11306        }
11307    }
11308
11309    @Override
11310    public void deleteApplicationCacheFiles(final String packageName,
11311            final IPackageDataObserver observer) {
11312        mContext.enforceCallingOrSelfPermission(
11313                android.Manifest.permission.DELETE_CACHE_FILES, null);
11314        // Queue up an async operation since the package deletion may take a little while.
11315        final int userId = UserHandle.getCallingUserId();
11316        mHandler.post(new Runnable() {
11317            public void run() {
11318                mHandler.removeCallbacks(this);
11319                final boolean succeded;
11320                synchronized (mInstallLock) {
11321                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11322                }
11323                clearExternalStorageDataSync(packageName, userId, false);
11324                if(observer != null) {
11325                    try {
11326                        observer.onRemoveCompleted(packageName, succeded);
11327                    } catch (RemoteException e) {
11328                        Log.i(TAG, "Observer no longer exists.");
11329                    }
11330                } //end if observer
11331            } //end run
11332        });
11333    }
11334
11335    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11336        if (packageName == null) {
11337            Slog.w(TAG, "Attempt to delete null packageName.");
11338            return false;
11339        }
11340        PackageParser.Package p;
11341        synchronized (mPackages) {
11342            p = mPackages.get(packageName);
11343        }
11344        if (p == null) {
11345            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11346            return false;
11347        }
11348        final ApplicationInfo applicationInfo = p.applicationInfo;
11349        if (applicationInfo == null) {
11350            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11351            return false;
11352        }
11353        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11354        if (retCode < 0) {
11355            Slog.w(TAG, "Couldn't remove cache files for package: "
11356                       + packageName + " u" + userId);
11357            return false;
11358        }
11359        return true;
11360    }
11361
11362    @Override
11363    public void getPackageSizeInfo(final String packageName, int userHandle,
11364            final IPackageStatsObserver observer) {
11365        mContext.enforceCallingOrSelfPermission(
11366                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11367        if (packageName == null) {
11368            throw new IllegalArgumentException("Attempt to get size of null packageName");
11369        }
11370
11371        PackageStats stats = new PackageStats(packageName, userHandle);
11372
11373        /*
11374         * Queue up an async operation since the package measurement may take a
11375         * little while.
11376         */
11377        Message msg = mHandler.obtainMessage(INIT_COPY);
11378        msg.obj = new MeasureParams(stats, observer);
11379        mHandler.sendMessage(msg);
11380    }
11381
11382    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11383            PackageStats pStats) {
11384        if (packageName == null) {
11385            Slog.w(TAG, "Attempt to get size of null packageName.");
11386            return false;
11387        }
11388        PackageParser.Package p;
11389        boolean dataOnly = false;
11390        String libDirRoot = null;
11391        String asecPath = null;
11392        PackageSetting ps = null;
11393        synchronized (mPackages) {
11394            p = mPackages.get(packageName);
11395            ps = mSettings.mPackages.get(packageName);
11396            if(p == null) {
11397                dataOnly = true;
11398                if((ps == null) || (ps.pkg == null)) {
11399                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11400                    return false;
11401                }
11402                p = ps.pkg;
11403            }
11404            if (ps != null) {
11405                libDirRoot = ps.legacyNativeLibraryPathString;
11406            }
11407            if (p != null && (isExternal(p) || p.isForwardLocked())) {
11408                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11409                if (secureContainerId != null) {
11410                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11411                }
11412            }
11413        }
11414        String publicSrcDir = null;
11415        if(!dataOnly) {
11416            final ApplicationInfo applicationInfo = p.applicationInfo;
11417            if (applicationInfo == null) {
11418                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11419                return false;
11420            }
11421            if (p.isForwardLocked()) {
11422                publicSrcDir = applicationInfo.getBaseResourcePath();
11423            }
11424        }
11425        // TODO: extend to measure size of split APKs
11426        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11427        // not just the first level.
11428        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11429        // just the primary.
11430        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11431        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11432                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11433        if (res < 0) {
11434            return false;
11435        }
11436
11437        // Fix-up for forward-locked applications in ASEC containers.
11438        if (!isExternal(p)) {
11439            pStats.codeSize += pStats.externalCodeSize;
11440            pStats.externalCodeSize = 0L;
11441        }
11442
11443        return true;
11444    }
11445
11446
11447    @Override
11448    public void addPackageToPreferred(String packageName) {
11449        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11450    }
11451
11452    @Override
11453    public void removePackageFromPreferred(String packageName) {
11454        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11455    }
11456
11457    @Override
11458    public List<PackageInfo> getPreferredPackages(int flags) {
11459        return new ArrayList<PackageInfo>();
11460    }
11461
11462    private int getUidTargetSdkVersionLockedLPr(int uid) {
11463        Object obj = mSettings.getUserIdLPr(uid);
11464        if (obj instanceof SharedUserSetting) {
11465            final SharedUserSetting sus = (SharedUserSetting) obj;
11466            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11467            final Iterator<PackageSetting> it = sus.packages.iterator();
11468            while (it.hasNext()) {
11469                final PackageSetting ps = it.next();
11470                if (ps.pkg != null) {
11471                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11472                    if (v < vers) vers = v;
11473                }
11474            }
11475            return vers;
11476        } else if (obj instanceof PackageSetting) {
11477            final PackageSetting ps = (PackageSetting) obj;
11478            if (ps.pkg != null) {
11479                return ps.pkg.applicationInfo.targetSdkVersion;
11480            }
11481        }
11482        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11483    }
11484
11485    @Override
11486    public void addPreferredActivity(IntentFilter filter, int match,
11487            ComponentName[] set, ComponentName activity, int userId) {
11488        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11489                "Adding preferred");
11490    }
11491
11492    private void addPreferredActivityInternal(IntentFilter filter, int match,
11493            ComponentName[] set, ComponentName activity, boolean always, int userId,
11494            String opname) {
11495        // writer
11496        int callingUid = Binder.getCallingUid();
11497        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11498        if (filter.countActions() == 0) {
11499            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11500            return;
11501        }
11502        synchronized (mPackages) {
11503            if (mContext.checkCallingOrSelfPermission(
11504                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11505                    != PackageManager.PERMISSION_GRANTED) {
11506                if (getUidTargetSdkVersionLockedLPr(callingUid)
11507                        < Build.VERSION_CODES.FROYO) {
11508                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11509                            + callingUid);
11510                    return;
11511                }
11512                mContext.enforceCallingOrSelfPermission(
11513                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11514            }
11515
11516            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11517            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11518                    + userId + ":");
11519            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11520            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11521            scheduleWritePackageRestrictionsLocked(userId);
11522        }
11523    }
11524
11525    @Override
11526    public void replacePreferredActivity(IntentFilter filter, int match,
11527            ComponentName[] set, ComponentName activity, int userId) {
11528        if (filter.countActions() != 1) {
11529            throw new IllegalArgumentException(
11530                    "replacePreferredActivity expects filter to have only 1 action.");
11531        }
11532        if (filter.countDataAuthorities() != 0
11533                || filter.countDataPaths() != 0
11534                || filter.countDataSchemes() > 1
11535                || filter.countDataTypes() != 0) {
11536            throw new IllegalArgumentException(
11537                    "replacePreferredActivity expects filter to have no data authorities, " +
11538                    "paths, or types; and at most one scheme.");
11539        }
11540
11541        final int callingUid = Binder.getCallingUid();
11542        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11543        synchronized (mPackages) {
11544            if (mContext.checkCallingOrSelfPermission(
11545                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11546                    != PackageManager.PERMISSION_GRANTED) {
11547                if (getUidTargetSdkVersionLockedLPr(callingUid)
11548                        < Build.VERSION_CODES.FROYO) {
11549                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11550                            + Binder.getCallingUid());
11551                    return;
11552                }
11553                mContext.enforceCallingOrSelfPermission(
11554                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11555            }
11556
11557            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11558            if (pir != null) {
11559                // Get all of the existing entries that exactly match this filter.
11560                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11561                if (existing != null && existing.size() == 1) {
11562                    PreferredActivity cur = existing.get(0);
11563                    if (DEBUG_PREFERRED) {
11564                        Slog.i(TAG, "Checking replace of preferred:");
11565                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11566                        if (!cur.mPref.mAlways) {
11567                            Slog.i(TAG, "  -- CUR; not mAlways!");
11568                        } else {
11569                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11570                            Slog.i(TAG, "  -- CUR: mSet="
11571                                    + Arrays.toString(cur.mPref.mSetComponents));
11572                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11573                            Slog.i(TAG, "  -- NEW: mMatch="
11574                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11575                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11576                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11577                        }
11578                    }
11579                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11580                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11581                            && cur.mPref.sameSet(set)) {
11582                        // Setting the preferred activity to what it happens to be already
11583                        if (DEBUG_PREFERRED) {
11584                            Slog.i(TAG, "Replacing with same preferred activity "
11585                                    + cur.mPref.mShortComponent + " for user "
11586                                    + userId + ":");
11587                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11588                        }
11589                        return;
11590                    }
11591                }
11592
11593                if (existing != null) {
11594                    if (DEBUG_PREFERRED) {
11595                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11596                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11597                    }
11598                    for (int i = 0; i < existing.size(); i++) {
11599                        PreferredActivity pa = existing.get(i);
11600                        if (DEBUG_PREFERRED) {
11601                            Slog.i(TAG, "Removing existing preferred activity "
11602                                    + pa.mPref.mComponent + ":");
11603                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11604                        }
11605                        pir.removeFilter(pa);
11606                    }
11607                }
11608            }
11609            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11610                    "Replacing preferred");
11611        }
11612    }
11613
11614    @Override
11615    public void clearPackagePreferredActivities(String packageName) {
11616        final int uid = Binder.getCallingUid();
11617        // writer
11618        synchronized (mPackages) {
11619            PackageParser.Package pkg = mPackages.get(packageName);
11620            if (pkg == null || pkg.applicationInfo.uid != uid) {
11621                if (mContext.checkCallingOrSelfPermission(
11622                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11623                        != PackageManager.PERMISSION_GRANTED) {
11624                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11625                            < Build.VERSION_CODES.FROYO) {
11626                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11627                                + Binder.getCallingUid());
11628                        return;
11629                    }
11630                    mContext.enforceCallingOrSelfPermission(
11631                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11632                }
11633            }
11634
11635            int user = UserHandle.getCallingUserId();
11636            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11637                scheduleWritePackageRestrictionsLocked(user);
11638            }
11639        }
11640    }
11641
11642    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11643    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11644        ArrayList<PreferredActivity> removed = null;
11645        boolean changed = false;
11646        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11647            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11648            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11649            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11650                continue;
11651            }
11652            Iterator<PreferredActivity> it = pir.filterIterator();
11653            while (it.hasNext()) {
11654                PreferredActivity pa = it.next();
11655                // Mark entry for removal only if it matches the package name
11656                // and the entry is of type "always".
11657                if (packageName == null ||
11658                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11659                                && pa.mPref.mAlways)) {
11660                    if (removed == null) {
11661                        removed = new ArrayList<PreferredActivity>();
11662                    }
11663                    removed.add(pa);
11664                }
11665            }
11666            if (removed != null) {
11667                for (int j=0; j<removed.size(); j++) {
11668                    PreferredActivity pa = removed.get(j);
11669                    pir.removeFilter(pa);
11670                }
11671                changed = true;
11672            }
11673        }
11674        return changed;
11675    }
11676
11677    @Override
11678    public void resetPreferredActivities(int userId) {
11679        /* TODO: Actually use userId. Why is it being passed in? */
11680        mContext.enforceCallingOrSelfPermission(
11681                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11682        // writer
11683        synchronized (mPackages) {
11684            int user = UserHandle.getCallingUserId();
11685            clearPackagePreferredActivitiesLPw(null, user);
11686            mSettings.readDefaultPreferredAppsLPw(this, user);
11687            scheduleWritePackageRestrictionsLocked(user);
11688        }
11689    }
11690
11691    @Override
11692    public int getPreferredActivities(List<IntentFilter> outFilters,
11693            List<ComponentName> outActivities, String packageName) {
11694
11695        int num = 0;
11696        final int userId = UserHandle.getCallingUserId();
11697        // reader
11698        synchronized (mPackages) {
11699            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11700            if (pir != null) {
11701                final Iterator<PreferredActivity> it = pir.filterIterator();
11702                while (it.hasNext()) {
11703                    final PreferredActivity pa = it.next();
11704                    if (packageName == null
11705                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11706                                    && pa.mPref.mAlways)) {
11707                        if (outFilters != null) {
11708                            outFilters.add(new IntentFilter(pa));
11709                        }
11710                        if (outActivities != null) {
11711                            outActivities.add(pa.mPref.mComponent);
11712                        }
11713                    }
11714                }
11715            }
11716        }
11717
11718        return num;
11719    }
11720
11721    @Override
11722    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11723            int userId) {
11724        int callingUid = Binder.getCallingUid();
11725        if (callingUid != Process.SYSTEM_UID) {
11726            throw new SecurityException(
11727                    "addPersistentPreferredActivity can only be run by the system");
11728        }
11729        if (filter.countActions() == 0) {
11730            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11731            return;
11732        }
11733        synchronized (mPackages) {
11734            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11735                    " :");
11736            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11737            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11738                    new PersistentPreferredActivity(filter, activity));
11739            scheduleWritePackageRestrictionsLocked(userId);
11740        }
11741    }
11742
11743    @Override
11744    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11745        int callingUid = Binder.getCallingUid();
11746        if (callingUid != Process.SYSTEM_UID) {
11747            throw new SecurityException(
11748                    "clearPackagePersistentPreferredActivities can only be run by the system");
11749        }
11750        ArrayList<PersistentPreferredActivity> removed = null;
11751        boolean changed = false;
11752        synchronized (mPackages) {
11753            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11754                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11755                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11756                        .valueAt(i);
11757                if (userId != thisUserId) {
11758                    continue;
11759                }
11760                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11761                while (it.hasNext()) {
11762                    PersistentPreferredActivity ppa = it.next();
11763                    // Mark entry for removal only if it matches the package name.
11764                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11765                        if (removed == null) {
11766                            removed = new ArrayList<PersistentPreferredActivity>();
11767                        }
11768                        removed.add(ppa);
11769                    }
11770                }
11771                if (removed != null) {
11772                    for (int j=0; j<removed.size(); j++) {
11773                        PersistentPreferredActivity ppa = removed.get(j);
11774                        ppir.removeFilter(ppa);
11775                    }
11776                    changed = true;
11777                }
11778            }
11779
11780            if (changed) {
11781                scheduleWritePackageRestrictionsLocked(userId);
11782            }
11783        }
11784    }
11785
11786    @Override
11787    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11788            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11789        mContext.enforceCallingOrSelfPermission(
11790                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11791        int callingUid = Binder.getCallingUid();
11792        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11793        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11794        if (intentFilter.countActions() == 0) {
11795            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11796            return;
11797        }
11798        synchronized (mPackages) {
11799            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11800                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11801            CrossProfileIntentResolver resolver =
11802                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11803            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11804            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11805            if (existing != null) {
11806                int size = existing.size();
11807                for (int i = 0; i < size; i++) {
11808                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11809                        return;
11810                    }
11811                }
11812            }
11813            resolver.addFilter(newFilter);
11814            scheduleWritePackageRestrictionsLocked(sourceUserId);
11815        }
11816    }
11817
11818    @Override
11819    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11820            int ownerUserId) {
11821        mContext.enforceCallingOrSelfPermission(
11822                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11823        int callingUid = Binder.getCallingUid();
11824        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11825        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11826        int callingUserId = UserHandle.getUserId(callingUid);
11827        synchronized (mPackages) {
11828            CrossProfileIntentResolver resolver =
11829                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11830            ArraySet<CrossProfileIntentFilter> set =
11831                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11832            for (CrossProfileIntentFilter filter : set) {
11833                if (filter.getOwnerPackage().equals(ownerPackage)
11834                        && filter.getOwnerUserId() == callingUserId) {
11835                    resolver.removeFilter(filter);
11836                }
11837            }
11838            scheduleWritePackageRestrictionsLocked(sourceUserId);
11839        }
11840    }
11841
11842    // Enforcing that callingUid is owning pkg on userId
11843    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11844        // The system owns everything.
11845        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11846            return;
11847        }
11848        int callingUserId = UserHandle.getUserId(callingUid);
11849        if (callingUserId != userId) {
11850            throw new SecurityException("calling uid " + callingUid
11851                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11852                    + callingUserId);
11853        }
11854        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11855        if (pi == null) {
11856            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11857                    + callingUserId);
11858        }
11859        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11860            throw new SecurityException("Calling uid " + callingUid
11861                    + " does not own package " + pkg);
11862        }
11863    }
11864
11865    @Override
11866    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11867        Intent intent = new Intent(Intent.ACTION_MAIN);
11868        intent.addCategory(Intent.CATEGORY_HOME);
11869
11870        final int callingUserId = UserHandle.getCallingUserId();
11871        List<ResolveInfo> list = queryIntentActivities(intent, null,
11872                PackageManager.GET_META_DATA, callingUserId);
11873        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11874                true, false, false, callingUserId);
11875
11876        allHomeCandidates.clear();
11877        if (list != null) {
11878            for (ResolveInfo ri : list) {
11879                allHomeCandidates.add(ri);
11880            }
11881        }
11882        return (preferred == null || preferred.activityInfo == null)
11883                ? null
11884                : new ComponentName(preferred.activityInfo.packageName,
11885                        preferred.activityInfo.name);
11886    }
11887
11888    @Override
11889    public void setApplicationEnabledSetting(String appPackageName,
11890            int newState, int flags, int userId, String callingPackage) {
11891        if (!sUserManager.exists(userId)) return;
11892        if (callingPackage == null) {
11893            callingPackage = Integer.toString(Binder.getCallingUid());
11894        }
11895        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11896    }
11897
11898    @Override
11899    public void setComponentEnabledSetting(ComponentName componentName,
11900            int newState, int flags, int userId) {
11901        if (!sUserManager.exists(userId)) return;
11902        setEnabledSetting(componentName.getPackageName(),
11903                componentName.getClassName(), newState, flags, userId, null);
11904    }
11905
11906    private void setEnabledSetting(final String packageName, String className, int newState,
11907            final int flags, int userId, String callingPackage) {
11908        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11909              || newState == COMPONENT_ENABLED_STATE_ENABLED
11910              || newState == COMPONENT_ENABLED_STATE_DISABLED
11911              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11912              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11913            throw new IllegalArgumentException("Invalid new component state: "
11914                    + newState);
11915        }
11916        PackageSetting pkgSetting;
11917        final int uid = Binder.getCallingUid();
11918        final int permission = mContext.checkCallingOrSelfPermission(
11919                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11920        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11921        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11922        boolean sendNow = false;
11923        boolean isApp = (className == null);
11924        String componentName = isApp ? packageName : className;
11925        int packageUid = -1;
11926        ArrayList<String> components;
11927
11928        // writer
11929        synchronized (mPackages) {
11930            pkgSetting = mSettings.mPackages.get(packageName);
11931            if (pkgSetting == null) {
11932                if (className == null) {
11933                    throw new IllegalArgumentException(
11934                            "Unknown package: " + packageName);
11935                }
11936                throw new IllegalArgumentException(
11937                        "Unknown component: " + packageName
11938                        + "/" + className);
11939            }
11940            // Allow root and verify that userId is not being specified by a different user
11941            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11942                throw new SecurityException(
11943                        "Permission Denial: attempt to change component state from pid="
11944                        + Binder.getCallingPid()
11945                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11946            }
11947            if (className == null) {
11948                // We're dealing with an application/package level state change
11949                if (pkgSetting.getEnabled(userId) == newState) {
11950                    // Nothing to do
11951                    return;
11952                }
11953                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11954                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11955                    // Don't care about who enables an app.
11956                    callingPackage = null;
11957                }
11958                pkgSetting.setEnabled(newState, userId, callingPackage);
11959                // pkgSetting.pkg.mSetEnabled = newState;
11960            } else {
11961                // We're dealing with a component level state change
11962                // First, verify that this is a valid class name.
11963                PackageParser.Package pkg = pkgSetting.pkg;
11964                if (pkg == null || !pkg.hasComponentClassName(className)) {
11965                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11966                        throw new IllegalArgumentException("Component class " + className
11967                                + " does not exist in " + packageName);
11968                    } else {
11969                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11970                                + className + " does not exist in " + packageName);
11971                    }
11972                }
11973                switch (newState) {
11974                case COMPONENT_ENABLED_STATE_ENABLED:
11975                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11976                        return;
11977                    }
11978                    break;
11979                case COMPONENT_ENABLED_STATE_DISABLED:
11980                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11981                        return;
11982                    }
11983                    break;
11984                case COMPONENT_ENABLED_STATE_DEFAULT:
11985                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
11986                        return;
11987                    }
11988                    break;
11989                default:
11990                    Slog.e(TAG, "Invalid new component state: " + newState);
11991                    return;
11992                }
11993            }
11994            mSettings.writePackageRestrictionsLPr(userId);
11995            components = mPendingBroadcasts.get(userId, packageName);
11996            final boolean newPackage = components == null;
11997            if (newPackage) {
11998                components = new ArrayList<String>();
11999            }
12000            if (!components.contains(componentName)) {
12001                components.add(componentName);
12002            }
12003            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12004                sendNow = true;
12005                // Purge entry from pending broadcast list if another one exists already
12006                // since we are sending one right away.
12007                mPendingBroadcasts.remove(userId, packageName);
12008            } else {
12009                if (newPackage) {
12010                    mPendingBroadcasts.put(userId, packageName, components);
12011                }
12012                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12013                    // Schedule a message
12014                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12015                }
12016            }
12017        }
12018
12019        long callingId = Binder.clearCallingIdentity();
12020        try {
12021            if (sendNow) {
12022                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12023                sendPackageChangedBroadcast(packageName,
12024                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12025            }
12026        } finally {
12027            Binder.restoreCallingIdentity(callingId);
12028        }
12029    }
12030
12031    private void sendPackageChangedBroadcast(String packageName,
12032            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12033        if (DEBUG_INSTALL)
12034            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12035                    + componentNames);
12036        Bundle extras = new Bundle(4);
12037        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12038        String nameList[] = new String[componentNames.size()];
12039        componentNames.toArray(nameList);
12040        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12041        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12042        extras.putInt(Intent.EXTRA_UID, packageUid);
12043        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12044                new int[] {UserHandle.getUserId(packageUid)});
12045    }
12046
12047    @Override
12048    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12049        if (!sUserManager.exists(userId)) return;
12050        final int uid = Binder.getCallingUid();
12051        final int permission = mContext.checkCallingOrSelfPermission(
12052                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12053        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12054        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12055        // writer
12056        synchronized (mPackages) {
12057            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12058                    uid, userId)) {
12059                scheduleWritePackageRestrictionsLocked(userId);
12060            }
12061        }
12062    }
12063
12064    @Override
12065    public String getInstallerPackageName(String packageName) {
12066        // reader
12067        synchronized (mPackages) {
12068            return mSettings.getInstallerPackageNameLPr(packageName);
12069        }
12070    }
12071
12072    @Override
12073    public int getApplicationEnabledSetting(String packageName, int userId) {
12074        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12075        int uid = Binder.getCallingUid();
12076        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12077        // reader
12078        synchronized (mPackages) {
12079            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12080        }
12081    }
12082
12083    @Override
12084    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12085        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12086        int uid = Binder.getCallingUid();
12087        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12088        // reader
12089        synchronized (mPackages) {
12090            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12091        }
12092    }
12093
12094    @Override
12095    public void enterSafeMode() {
12096        enforceSystemOrRoot("Only the system can request entering safe mode");
12097
12098        if (!mSystemReady) {
12099            mSafeMode = true;
12100        }
12101    }
12102
12103    @Override
12104    public void systemReady() {
12105        mSystemReady = true;
12106
12107        // Read the compatibilty setting when the system is ready.
12108        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12109                mContext.getContentResolver(),
12110                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12111        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12112        if (DEBUG_SETTINGS) {
12113            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12114        }
12115
12116        synchronized (mPackages) {
12117            // Verify that all of the preferred activity components actually
12118            // exist.  It is possible for applications to be updated and at
12119            // that point remove a previously declared activity component that
12120            // had been set as a preferred activity.  We try to clean this up
12121            // the next time we encounter that preferred activity, but it is
12122            // possible for the user flow to never be able to return to that
12123            // situation so here we do a sanity check to make sure we haven't
12124            // left any junk around.
12125            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12126            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12127                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12128                removed.clear();
12129                for (PreferredActivity pa : pir.filterSet()) {
12130                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12131                        removed.add(pa);
12132                    }
12133                }
12134                if (removed.size() > 0) {
12135                    for (int r=0; r<removed.size(); r++) {
12136                        PreferredActivity pa = removed.get(r);
12137                        Slog.w(TAG, "Removing dangling preferred activity: "
12138                                + pa.mPref.mComponent);
12139                        pir.removeFilter(pa);
12140                    }
12141                    mSettings.writePackageRestrictionsLPr(
12142                            mSettings.mPreferredActivities.keyAt(i));
12143                }
12144            }
12145        }
12146        sUserManager.systemReady();
12147
12148        // Kick off any messages waiting for system ready
12149        if (mPostSystemReadyMessages != null) {
12150            for (Message msg : mPostSystemReadyMessages) {
12151                msg.sendToTarget();
12152            }
12153            mPostSystemReadyMessages = null;
12154        }
12155    }
12156
12157    @Override
12158    public boolean isSafeMode() {
12159        return mSafeMode;
12160    }
12161
12162    @Override
12163    public boolean hasSystemUidErrors() {
12164        return mHasSystemUidErrors;
12165    }
12166
12167    static String arrayToString(int[] array) {
12168        StringBuffer buf = new StringBuffer(128);
12169        buf.append('[');
12170        if (array != null) {
12171            for (int i=0; i<array.length; i++) {
12172                if (i > 0) buf.append(", ");
12173                buf.append(array[i]);
12174            }
12175        }
12176        buf.append(']');
12177        return buf.toString();
12178    }
12179
12180    static class DumpState {
12181        public static final int DUMP_LIBS = 1 << 0;
12182        public static final int DUMP_FEATURES = 1 << 1;
12183        public static final int DUMP_RESOLVERS = 1 << 2;
12184        public static final int DUMP_PERMISSIONS = 1 << 3;
12185        public static final int DUMP_PACKAGES = 1 << 4;
12186        public static final int DUMP_SHARED_USERS = 1 << 5;
12187        public static final int DUMP_MESSAGES = 1 << 6;
12188        public static final int DUMP_PROVIDERS = 1 << 7;
12189        public static final int DUMP_VERIFIERS = 1 << 8;
12190        public static final int DUMP_PREFERRED = 1 << 9;
12191        public static final int DUMP_PREFERRED_XML = 1 << 10;
12192        public static final int DUMP_KEYSETS = 1 << 11;
12193        public static final int DUMP_VERSION = 1 << 12;
12194        public static final int DUMP_INSTALLS = 1 << 13;
12195
12196        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12197
12198        private int mTypes;
12199
12200        private int mOptions;
12201
12202        private boolean mTitlePrinted;
12203
12204        private SharedUserSetting mSharedUser;
12205
12206        public boolean isDumping(int type) {
12207            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12208                return true;
12209            }
12210
12211            return (mTypes & type) != 0;
12212        }
12213
12214        public void setDump(int type) {
12215            mTypes |= type;
12216        }
12217
12218        public boolean isOptionEnabled(int option) {
12219            return (mOptions & option) != 0;
12220        }
12221
12222        public void setOptionEnabled(int option) {
12223            mOptions |= option;
12224        }
12225
12226        public boolean onTitlePrinted() {
12227            final boolean printed = mTitlePrinted;
12228            mTitlePrinted = true;
12229            return printed;
12230        }
12231
12232        public boolean getTitlePrinted() {
12233            return mTitlePrinted;
12234        }
12235
12236        public void setTitlePrinted(boolean enabled) {
12237            mTitlePrinted = enabled;
12238        }
12239
12240        public SharedUserSetting getSharedUser() {
12241            return mSharedUser;
12242        }
12243
12244        public void setSharedUser(SharedUserSetting user) {
12245            mSharedUser = user;
12246        }
12247    }
12248
12249    @Override
12250    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12251        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12252                != PackageManager.PERMISSION_GRANTED) {
12253            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12254                    + Binder.getCallingPid()
12255                    + ", uid=" + Binder.getCallingUid()
12256                    + " without permission "
12257                    + android.Manifest.permission.DUMP);
12258            return;
12259        }
12260
12261        DumpState dumpState = new DumpState();
12262        boolean fullPreferred = false;
12263        boolean checkin = false;
12264
12265        String packageName = null;
12266
12267        int opti = 0;
12268        while (opti < args.length) {
12269            String opt = args[opti];
12270            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12271                break;
12272            }
12273            opti++;
12274
12275            if ("-a".equals(opt)) {
12276                // Right now we only know how to print all.
12277            } else if ("-h".equals(opt)) {
12278                pw.println("Package manager dump options:");
12279                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12280                pw.println("    --checkin: dump for a checkin");
12281                pw.println("    -f: print details of intent filters");
12282                pw.println("    -h: print this help");
12283                pw.println("  cmd may be one of:");
12284                pw.println("    l[ibraries]: list known shared libraries");
12285                pw.println("    f[ibraries]: list device features");
12286                pw.println("    k[eysets]: print known keysets");
12287                pw.println("    r[esolvers]: dump intent resolvers");
12288                pw.println("    perm[issions]: dump permissions");
12289                pw.println("    pref[erred]: print preferred package settings");
12290                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12291                pw.println("    prov[iders]: dump content providers");
12292                pw.println("    p[ackages]: dump installed packages");
12293                pw.println("    s[hared-users]: dump shared user IDs");
12294                pw.println("    m[essages]: print collected runtime messages");
12295                pw.println("    v[erifiers]: print package verifier info");
12296                pw.println("    version: print database version info");
12297                pw.println("    write: write current settings now");
12298                pw.println("    <package.name>: info about given package");
12299                pw.println("    installs: details about install sessions");
12300                return;
12301            } else if ("--checkin".equals(opt)) {
12302                checkin = true;
12303            } else if ("-f".equals(opt)) {
12304                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12305            } else {
12306                pw.println("Unknown argument: " + opt + "; use -h for help");
12307            }
12308        }
12309
12310        // Is the caller requesting to dump a particular piece of data?
12311        if (opti < args.length) {
12312            String cmd = args[opti];
12313            opti++;
12314            // Is this a package name?
12315            if ("android".equals(cmd) || cmd.contains(".")) {
12316                packageName = cmd;
12317                // When dumping a single package, we always dump all of its
12318                // filter information since the amount of data will be reasonable.
12319                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12320            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12321                dumpState.setDump(DumpState.DUMP_LIBS);
12322            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12323                dumpState.setDump(DumpState.DUMP_FEATURES);
12324            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12325                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12326            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12327                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12328            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12329                dumpState.setDump(DumpState.DUMP_PREFERRED);
12330            } else if ("preferred-xml".equals(cmd)) {
12331                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12332                if (opti < args.length && "--full".equals(args[opti])) {
12333                    fullPreferred = true;
12334                    opti++;
12335                }
12336            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12337                dumpState.setDump(DumpState.DUMP_PACKAGES);
12338            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12339                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12340            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12341                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12342            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12343                dumpState.setDump(DumpState.DUMP_MESSAGES);
12344            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12345                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12346            } else if ("version".equals(cmd)) {
12347                dumpState.setDump(DumpState.DUMP_VERSION);
12348            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12349                dumpState.setDump(DumpState.DUMP_KEYSETS);
12350            } else if ("installs".equals(cmd)) {
12351                dumpState.setDump(DumpState.DUMP_INSTALLS);
12352            } else if ("write".equals(cmd)) {
12353                synchronized (mPackages) {
12354                    mSettings.writeLPr();
12355                    pw.println("Settings written.");
12356                    return;
12357                }
12358            }
12359        }
12360
12361        if (checkin) {
12362            pw.println("vers,1");
12363        }
12364
12365        // reader
12366        synchronized (mPackages) {
12367            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12368                if (!checkin) {
12369                    if (dumpState.onTitlePrinted())
12370                        pw.println();
12371                    pw.println("Database versions:");
12372                    pw.print("  SDK Version:");
12373                    pw.print(" internal=");
12374                    pw.print(mSettings.mInternalSdkPlatform);
12375                    pw.print(" external=");
12376                    pw.println(mSettings.mExternalSdkPlatform);
12377                    pw.print("  DB Version:");
12378                    pw.print(" internal=");
12379                    pw.print(mSettings.mInternalDatabaseVersion);
12380                    pw.print(" external=");
12381                    pw.println(mSettings.mExternalDatabaseVersion);
12382                }
12383            }
12384
12385            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12386                if (!checkin) {
12387                    if (dumpState.onTitlePrinted())
12388                        pw.println();
12389                    pw.println("Verifiers:");
12390                    pw.print("  Required: ");
12391                    pw.print(mRequiredVerifierPackage);
12392                    pw.print(" (uid=");
12393                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12394                    pw.println(")");
12395                } else if (mRequiredVerifierPackage != null) {
12396                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12397                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12398                }
12399            }
12400
12401            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12402                boolean printedHeader = false;
12403                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12404                while (it.hasNext()) {
12405                    String name = it.next();
12406                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12407                    if (!checkin) {
12408                        if (!printedHeader) {
12409                            if (dumpState.onTitlePrinted())
12410                                pw.println();
12411                            pw.println("Libraries:");
12412                            printedHeader = true;
12413                        }
12414                        pw.print("  ");
12415                    } else {
12416                        pw.print("lib,");
12417                    }
12418                    pw.print(name);
12419                    if (!checkin) {
12420                        pw.print(" -> ");
12421                    }
12422                    if (ent.path != null) {
12423                        if (!checkin) {
12424                            pw.print("(jar) ");
12425                            pw.print(ent.path);
12426                        } else {
12427                            pw.print(",jar,");
12428                            pw.print(ent.path);
12429                        }
12430                    } else {
12431                        if (!checkin) {
12432                            pw.print("(apk) ");
12433                            pw.print(ent.apk);
12434                        } else {
12435                            pw.print(",apk,");
12436                            pw.print(ent.apk);
12437                        }
12438                    }
12439                    pw.println();
12440                }
12441            }
12442
12443            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12444                if (dumpState.onTitlePrinted())
12445                    pw.println();
12446                if (!checkin) {
12447                    pw.println("Features:");
12448                }
12449                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12450                while (it.hasNext()) {
12451                    String name = it.next();
12452                    if (!checkin) {
12453                        pw.print("  ");
12454                    } else {
12455                        pw.print("feat,");
12456                    }
12457                    pw.println(name);
12458                }
12459            }
12460
12461            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12462                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12463                        : "Activity Resolver Table:", "  ", packageName,
12464                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12465                    dumpState.setTitlePrinted(true);
12466                }
12467                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12468                        : "Receiver Resolver Table:", "  ", packageName,
12469                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12470                    dumpState.setTitlePrinted(true);
12471                }
12472                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12473                        : "Service Resolver Table:", "  ", packageName,
12474                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12475                    dumpState.setTitlePrinted(true);
12476                }
12477                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12478                        : "Provider Resolver Table:", "  ", packageName,
12479                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12480                    dumpState.setTitlePrinted(true);
12481                }
12482            }
12483
12484            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12485                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12486                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12487                    int user = mSettings.mPreferredActivities.keyAt(i);
12488                    if (pir.dump(pw,
12489                            dumpState.getTitlePrinted()
12490                                ? "\nPreferred Activities User " + user + ":"
12491                                : "Preferred Activities User " + user + ":", "  ",
12492                            packageName, true, false)) {
12493                        dumpState.setTitlePrinted(true);
12494                    }
12495                }
12496            }
12497
12498            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12499                pw.flush();
12500                FileOutputStream fout = new FileOutputStream(fd);
12501                BufferedOutputStream str = new BufferedOutputStream(fout);
12502                XmlSerializer serializer = new FastXmlSerializer();
12503                try {
12504                    serializer.setOutput(str, "utf-8");
12505                    serializer.startDocument(null, true);
12506                    serializer.setFeature(
12507                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12508                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12509                    serializer.endDocument();
12510                    serializer.flush();
12511                } catch (IllegalArgumentException e) {
12512                    pw.println("Failed writing: " + e);
12513                } catch (IllegalStateException e) {
12514                    pw.println("Failed writing: " + e);
12515                } catch (IOException e) {
12516                    pw.println("Failed writing: " + e);
12517                }
12518            }
12519
12520            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12521                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12522                if (packageName == null) {
12523                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12524                        if (iperm == 0) {
12525                            if (dumpState.onTitlePrinted())
12526                                pw.println();
12527                            pw.println("AppOp Permissions:");
12528                        }
12529                        pw.print("  AppOp Permission ");
12530                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12531                        pw.println(":");
12532                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12533                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12534                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12535                        }
12536                    }
12537                }
12538            }
12539
12540            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12541                boolean printedSomething = false;
12542                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12543                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12544                        continue;
12545                    }
12546                    if (!printedSomething) {
12547                        if (dumpState.onTitlePrinted())
12548                            pw.println();
12549                        pw.println("Registered ContentProviders:");
12550                        printedSomething = true;
12551                    }
12552                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12553                    pw.print("    "); pw.println(p.toString());
12554                }
12555                printedSomething = false;
12556                for (Map.Entry<String, PackageParser.Provider> entry :
12557                        mProvidersByAuthority.entrySet()) {
12558                    PackageParser.Provider p = entry.getValue();
12559                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12560                        continue;
12561                    }
12562                    if (!printedSomething) {
12563                        if (dumpState.onTitlePrinted())
12564                            pw.println();
12565                        pw.println("ContentProvider Authorities:");
12566                        printedSomething = true;
12567                    }
12568                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12569                    pw.print("    "); pw.println(p.toString());
12570                    if (p.info != null && p.info.applicationInfo != null) {
12571                        final String appInfo = p.info.applicationInfo.toString();
12572                        pw.print("      applicationInfo="); pw.println(appInfo);
12573                    }
12574                }
12575            }
12576
12577            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12578                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12579            }
12580
12581            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12582                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12583            }
12584
12585            if (dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12586                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState, checkin);
12587            }
12588
12589            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12590                // XXX should handle packageName != null by dumping only install data that
12591                // the given package is involved with.
12592                if (dumpState.onTitlePrinted()) pw.println();
12593                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12594            }
12595
12596            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12597                if (dumpState.onTitlePrinted()) pw.println();
12598                mSettings.dumpReadMessagesLPr(pw, dumpState);
12599
12600                pw.println();
12601                pw.println("Package warning messages:");
12602                BufferedReader in = null;
12603                String line = null;
12604                try {
12605                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12606                    while ((line = in.readLine()) != null) {
12607                        if (line.contains("ignored: updated version")) continue;
12608                        pw.println(line);
12609                    }
12610                } catch (IOException ignored) {
12611                } finally {
12612                    IoUtils.closeQuietly(in);
12613                }
12614            }
12615
12616            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12617                BufferedReader in = null;
12618                String line = null;
12619                try {
12620                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12621                    while ((line = in.readLine()) != null) {
12622                        if (line.contains("ignored: updated version")) continue;
12623                        pw.print("msg,");
12624                        pw.println(line);
12625                    }
12626                } catch (IOException ignored) {
12627                } finally {
12628                    IoUtils.closeQuietly(in);
12629                }
12630            }
12631        }
12632    }
12633
12634    // ------- apps on sdcard specific code -------
12635    static final boolean DEBUG_SD_INSTALL = false;
12636
12637    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12638
12639    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12640
12641    private boolean mMediaMounted = false;
12642
12643    static String getEncryptKey() {
12644        try {
12645            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12646                    SD_ENCRYPTION_KEYSTORE_NAME);
12647            if (sdEncKey == null) {
12648                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12649                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12650                if (sdEncKey == null) {
12651                    Slog.e(TAG, "Failed to create encryption keys");
12652                    return null;
12653                }
12654            }
12655            return sdEncKey;
12656        } catch (NoSuchAlgorithmException nsae) {
12657            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12658            return null;
12659        } catch (IOException ioe) {
12660            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12661            return null;
12662        }
12663    }
12664
12665    /*
12666     * Update media status on PackageManager.
12667     */
12668    @Override
12669    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12670        int callingUid = Binder.getCallingUid();
12671        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12672            throw new SecurityException("Media status can only be updated by the system");
12673        }
12674        // reader; this apparently protects mMediaMounted, but should probably
12675        // be a different lock in that case.
12676        synchronized (mPackages) {
12677            Log.i(TAG, "Updating external media status from "
12678                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12679                    + (mediaStatus ? "mounted" : "unmounted"));
12680            if (DEBUG_SD_INSTALL)
12681                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12682                        + ", mMediaMounted=" + mMediaMounted);
12683            if (mediaStatus == mMediaMounted) {
12684                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12685                        : 0, -1);
12686                mHandler.sendMessage(msg);
12687                return;
12688            }
12689            mMediaMounted = mediaStatus;
12690        }
12691        // Queue up an async operation since the package installation may take a
12692        // little while.
12693        mHandler.post(new Runnable() {
12694            public void run() {
12695                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12696            }
12697        });
12698    }
12699
12700    /**
12701     * Called by MountService when the initial ASECs to scan are available.
12702     * Should block until all the ASEC containers are finished being scanned.
12703     */
12704    public void scanAvailableAsecs() {
12705        updateExternalMediaStatusInner(true, false, false);
12706        if (mShouldRestoreconData) {
12707            SELinuxMMAC.setRestoreconDone();
12708            mShouldRestoreconData = false;
12709        }
12710    }
12711
12712    /*
12713     * Collect information of applications on external media, map them against
12714     * existing containers and update information based on current mount status.
12715     * Please note that we always have to report status if reportStatus has been
12716     * set to true especially when unloading packages.
12717     */
12718    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12719            boolean externalStorage) {
12720        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12721        int[] uidArr = EmptyArray.INT;
12722
12723        final String[] list = PackageHelper.getSecureContainerList();
12724        if (ArrayUtils.isEmpty(list)) {
12725            Log.i(TAG, "No secure containers found");
12726        } else {
12727            // Process list of secure containers and categorize them
12728            // as active or stale based on their package internal state.
12729
12730            // reader
12731            synchronized (mPackages) {
12732                for (String cid : list) {
12733                    // Leave stages untouched for now; installer service owns them
12734                    if (PackageInstallerService.isStageName(cid)) continue;
12735
12736                    if (DEBUG_SD_INSTALL)
12737                        Log.i(TAG, "Processing container " + cid);
12738                    String pkgName = getAsecPackageName(cid);
12739                    if (pkgName == null) {
12740                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12741                        continue;
12742                    }
12743                    if (DEBUG_SD_INSTALL)
12744                        Log.i(TAG, "Looking for pkg : " + pkgName);
12745
12746                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12747                    if (ps == null) {
12748                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12749                        continue;
12750                    }
12751
12752                    /*
12753                     * Skip packages that are not external if we're unmounting
12754                     * external storage.
12755                     */
12756                    if (externalStorage && !isMounted && !isExternal(ps)) {
12757                        continue;
12758                    }
12759
12760                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12761                            getAppDexInstructionSets(ps), ps.isForwardLocked());
12762                    // The package status is changed only if the code path
12763                    // matches between settings and the container id.
12764                    if (ps.codePathString != null
12765                            && ps.codePathString.startsWith(args.getCodePath())) {
12766                        if (DEBUG_SD_INSTALL) {
12767                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12768                                    + " at code path: " + ps.codePathString);
12769                        }
12770
12771                        // We do have a valid package installed on sdcard
12772                        processCids.put(args, ps.codePathString);
12773                        final int uid = ps.appId;
12774                        if (uid != -1) {
12775                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12776                        }
12777                    } else {
12778                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12779                                + ps.codePathString);
12780                    }
12781                }
12782            }
12783
12784            Arrays.sort(uidArr);
12785        }
12786
12787        // Process packages with valid entries.
12788        if (isMounted) {
12789            if (DEBUG_SD_INSTALL)
12790                Log.i(TAG, "Loading packages");
12791            loadMediaPackages(processCids, uidArr);
12792            startCleaningPackages();
12793            mInstallerService.onSecureContainersAvailable();
12794        } else {
12795            if (DEBUG_SD_INSTALL)
12796                Log.i(TAG, "Unloading packages");
12797            unloadMediaPackages(processCids, uidArr, reportStatus);
12798        }
12799    }
12800
12801    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12802            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12803        int size = pkgList.size();
12804        if (size > 0) {
12805            // Send broadcasts here
12806            Bundle extras = new Bundle();
12807            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12808                    .toArray(new String[size]));
12809            if (uidArr != null) {
12810                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12811            }
12812            if (replacing) {
12813                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12814            }
12815            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12816                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12817            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12818        }
12819    }
12820
12821   /*
12822     * Look at potentially valid container ids from processCids If package
12823     * information doesn't match the one on record or package scanning fails,
12824     * the cid is added to list of removeCids. We currently don't delete stale
12825     * containers.
12826     */
12827    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12828        ArrayList<String> pkgList = new ArrayList<String>();
12829        Set<AsecInstallArgs> keys = processCids.keySet();
12830
12831        for (AsecInstallArgs args : keys) {
12832            String codePath = processCids.get(args);
12833            if (DEBUG_SD_INSTALL)
12834                Log.i(TAG, "Loading container : " + args.cid);
12835            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12836            try {
12837                // Make sure there are no container errors first.
12838                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12839                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12840                            + " when installing from sdcard");
12841                    continue;
12842                }
12843                // Check code path here.
12844                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12845                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12846                            + " does not match one in settings " + codePath);
12847                    continue;
12848                }
12849                // Parse package
12850                int parseFlags = mDefParseFlags;
12851                if (args.isExternal()) {
12852                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12853                }
12854                if (args.isFwdLocked()) {
12855                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12856                }
12857
12858                synchronized (mInstallLock) {
12859                    PackageParser.Package pkg = null;
12860                    try {
12861                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12862                    } catch (PackageManagerException e) {
12863                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12864                    }
12865                    // Scan the package
12866                    if (pkg != null) {
12867                        /*
12868                         * TODO why is the lock being held? doPostInstall is
12869                         * called in other places without the lock. This needs
12870                         * to be straightened out.
12871                         */
12872                        // writer
12873                        synchronized (mPackages) {
12874                            retCode = PackageManager.INSTALL_SUCCEEDED;
12875                            pkgList.add(pkg.packageName);
12876                            // Post process args
12877                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12878                                    pkg.applicationInfo.uid);
12879                        }
12880                    } else {
12881                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12882                    }
12883                }
12884
12885            } finally {
12886                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12887                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12888                }
12889            }
12890        }
12891        // writer
12892        synchronized (mPackages) {
12893            // If the platform SDK has changed since the last time we booted,
12894            // we need to re-grant app permission to catch any new ones that
12895            // appear. This is really a hack, and means that apps can in some
12896            // cases get permissions that the user didn't initially explicitly
12897            // allow... it would be nice to have some better way to handle
12898            // this situation.
12899            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12900            if (regrantPermissions)
12901                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12902                        + mSdkVersion + "; regranting permissions for external storage");
12903            mSettings.mExternalSdkPlatform = mSdkVersion;
12904
12905            // Make sure group IDs have been assigned, and any permission
12906            // changes in other apps are accounted for
12907            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12908                    | (regrantPermissions
12909                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12910                            : 0));
12911
12912            mSettings.updateExternalDatabaseVersion();
12913
12914            // can downgrade to reader
12915            // Persist settings
12916            mSettings.writeLPr();
12917        }
12918        // Send a broadcast to let everyone know we are done processing
12919        if (pkgList.size() > 0) {
12920            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12921        }
12922    }
12923
12924   /*
12925     * Utility method to unload a list of specified containers
12926     */
12927    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12928        // Just unmount all valid containers.
12929        for (AsecInstallArgs arg : cidArgs) {
12930            synchronized (mInstallLock) {
12931                arg.doPostDeleteLI(false);
12932           }
12933       }
12934   }
12935
12936    /*
12937     * Unload packages mounted on external media. This involves deleting package
12938     * data from internal structures, sending broadcasts about diabled packages,
12939     * gc'ing to free up references, unmounting all secure containers
12940     * corresponding to packages on external media, and posting a
12941     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12942     * that we always have to post this message if status has been requested no
12943     * matter what.
12944     */
12945    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12946            final boolean reportStatus) {
12947        if (DEBUG_SD_INSTALL)
12948            Log.i(TAG, "unloading media packages");
12949        ArrayList<String> pkgList = new ArrayList<String>();
12950        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12951        final Set<AsecInstallArgs> keys = processCids.keySet();
12952        for (AsecInstallArgs args : keys) {
12953            String pkgName = args.getPackageName();
12954            if (DEBUG_SD_INSTALL)
12955                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12956            // Delete package internally
12957            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12958            synchronized (mInstallLock) {
12959                boolean res = deletePackageLI(pkgName, null, false, null, null,
12960                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12961                if (res) {
12962                    pkgList.add(pkgName);
12963                } else {
12964                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12965                    failedList.add(args);
12966                }
12967            }
12968        }
12969
12970        // reader
12971        synchronized (mPackages) {
12972            // We didn't update the settings after removing each package;
12973            // write them now for all packages.
12974            mSettings.writeLPr();
12975        }
12976
12977        // We have to absolutely send UPDATED_MEDIA_STATUS only
12978        // after confirming that all the receivers processed the ordered
12979        // broadcast when packages get disabled, force a gc to clean things up.
12980        // and unload all the containers.
12981        if (pkgList.size() > 0) {
12982            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
12983                    new IIntentReceiver.Stub() {
12984                public void performReceive(Intent intent, int resultCode, String data,
12985                        Bundle extras, boolean ordered, boolean sticky,
12986                        int sendingUser) throws RemoteException {
12987                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
12988                            reportStatus ? 1 : 0, 1, keys);
12989                    mHandler.sendMessage(msg);
12990                }
12991            });
12992        } else {
12993            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
12994                    keys);
12995            mHandler.sendMessage(msg);
12996        }
12997    }
12998
12999    /** Binder call */
13000    @Override
13001    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13002            final int flags) {
13003        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13004        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13005        int returnCode = PackageManager.MOVE_SUCCEEDED;
13006        int currInstallFlags = 0;
13007        int newInstallFlags = 0;
13008
13009        File codeFile = null;
13010        String installerPackageName = null;
13011        String packageAbiOverride = null;
13012
13013        // reader
13014        synchronized (mPackages) {
13015            final PackageParser.Package pkg = mPackages.get(packageName);
13016            final PackageSetting ps = mSettings.mPackages.get(packageName);
13017            if (pkg == null || ps == null) {
13018                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13019            } else {
13020                // Disable moving fwd locked apps and system packages
13021                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13022                    Slog.w(TAG, "Cannot move system application");
13023                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13024                } else if (pkg.mOperationPending) {
13025                    Slog.w(TAG, "Attempt to move package which has pending operations");
13026                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13027                } else {
13028                    // Find install location first
13029                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13030                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13031                        Slog.w(TAG, "Ambigous flags specified for move location.");
13032                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13033                    } else {
13034                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13035                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13036                        currInstallFlags = isExternal(pkg)
13037                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13038
13039                        if (newInstallFlags == currInstallFlags) {
13040                            Slog.w(TAG, "No move required. Trying to move to same location");
13041                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13042                        } else {
13043                            if (pkg.isForwardLocked()) {
13044                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13045                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13046                            }
13047                        }
13048                    }
13049                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13050                        pkg.mOperationPending = true;
13051                    }
13052                }
13053
13054                codeFile = new File(pkg.codePath);
13055                installerPackageName = ps.installerPackageName;
13056                packageAbiOverride = ps.cpuAbiOverrideString;
13057            }
13058        }
13059
13060        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13061            try {
13062                observer.packageMoved(packageName, returnCode);
13063            } catch (RemoteException ignored) {
13064            }
13065            return;
13066        }
13067
13068        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13069            @Override
13070            public void onUserActionRequired(Intent intent) throws RemoteException {
13071                throw new IllegalStateException();
13072            }
13073
13074            @Override
13075            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13076                    Bundle extras) throws RemoteException {
13077                Slog.d(TAG, "Install result for move: "
13078                        + PackageManager.installStatusToString(returnCode, msg));
13079
13080                // We usually have a new package now after the install, but if
13081                // we failed we need to clear the pending flag on the original
13082                // package object.
13083                synchronized (mPackages) {
13084                    final PackageParser.Package pkg = mPackages.get(packageName);
13085                    if (pkg != null) {
13086                        pkg.mOperationPending = false;
13087                    }
13088                }
13089
13090                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13091                switch (status) {
13092                    case PackageInstaller.STATUS_SUCCESS:
13093                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13094                        break;
13095                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13096                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13097                        break;
13098                    default:
13099                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13100                        break;
13101                }
13102            }
13103        };
13104
13105        // Treat a move like reinstalling an existing app, which ensures that we
13106        // process everythign uniformly, like unpacking native libraries.
13107        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13108
13109        final Message msg = mHandler.obtainMessage(INIT_COPY);
13110        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13111        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13112                installerPackageName, null, user, packageAbiOverride);
13113        mHandler.sendMessage(msg);
13114    }
13115
13116    @Override
13117    public boolean setInstallLocation(int loc) {
13118        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13119                null);
13120        if (getInstallLocation() == loc) {
13121            return true;
13122        }
13123        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13124                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13125            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13126                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13127            return true;
13128        }
13129        return false;
13130   }
13131
13132    @Override
13133    public int getInstallLocation() {
13134        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13135                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13136                PackageHelper.APP_INSTALL_AUTO);
13137    }
13138
13139    /** Called by UserManagerService */
13140    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13141        mDirtyUsers.remove(userHandle);
13142        mSettings.removeUserLPw(userHandle);
13143        mPendingBroadcasts.remove(userHandle);
13144        if (mInstaller != null) {
13145            // Technically, we shouldn't be doing this with the package lock
13146            // held.  However, this is very rare, and there is already so much
13147            // other disk I/O going on, that we'll let it slide for now.
13148            mInstaller.removeUserDataDirs(userHandle);
13149        }
13150        mUserNeedsBadging.delete(userHandle);
13151        removeUnusedPackagesLILPw(userManager, userHandle);
13152    }
13153
13154    /**
13155     * We're removing userHandle and would like to remove any downloaded packages
13156     * that are no longer in use by any other user.
13157     * @param userHandle the user being removed
13158     */
13159    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13160        final boolean DEBUG_CLEAN_APKS = false;
13161        int [] users = userManager.getUserIdsLPr();
13162        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13163        while (psit.hasNext()) {
13164            PackageSetting ps = psit.next();
13165            if (ps.pkg == null) {
13166                continue;
13167            }
13168            final String packageName = ps.pkg.packageName;
13169            // Skip over if system app
13170            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13171                continue;
13172            }
13173            if (DEBUG_CLEAN_APKS) {
13174                Slog.i(TAG, "Checking package " + packageName);
13175            }
13176            boolean keep = false;
13177            for (int i = 0; i < users.length; i++) {
13178                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13179                    keep = true;
13180                    if (DEBUG_CLEAN_APKS) {
13181                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13182                                + users[i]);
13183                    }
13184                    break;
13185                }
13186            }
13187            if (!keep) {
13188                if (DEBUG_CLEAN_APKS) {
13189                    Slog.i(TAG, "  Removing package " + packageName);
13190                }
13191                mHandler.post(new Runnable() {
13192                    public void run() {
13193                        deletePackageX(packageName, userHandle, 0);
13194                    } //end run
13195                });
13196            }
13197        }
13198    }
13199
13200    /** Called by UserManagerService */
13201    void createNewUserLILPw(int userHandle, File path) {
13202        if (mInstaller != null) {
13203            mInstaller.createUserConfig(userHandle);
13204            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13205        }
13206    }
13207
13208    @Override
13209    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13210        mContext.enforceCallingOrSelfPermission(
13211                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13212                "Only package verification agents can read the verifier device identity");
13213
13214        synchronized (mPackages) {
13215            return mSettings.getVerifierDeviceIdentityLPw();
13216        }
13217    }
13218
13219    @Override
13220    public void setPermissionEnforced(String permission, boolean enforced) {
13221        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13222        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13223            synchronized (mPackages) {
13224                if (mSettings.mReadExternalStorageEnforced == null
13225                        || mSettings.mReadExternalStorageEnforced != enforced) {
13226                    mSettings.mReadExternalStorageEnforced = enforced;
13227                    mSettings.writeLPr();
13228                }
13229            }
13230            // kill any non-foreground processes so we restart them and
13231            // grant/revoke the GID.
13232            final IActivityManager am = ActivityManagerNative.getDefault();
13233            if (am != null) {
13234                final long token = Binder.clearCallingIdentity();
13235                try {
13236                    am.killProcessesBelowForeground("setPermissionEnforcement");
13237                } catch (RemoteException e) {
13238                } finally {
13239                    Binder.restoreCallingIdentity(token);
13240                }
13241            }
13242        } else {
13243            throw new IllegalArgumentException("No selective enforcement for " + permission);
13244        }
13245    }
13246
13247    @Override
13248    @Deprecated
13249    public boolean isPermissionEnforced(String permission) {
13250        return true;
13251    }
13252
13253    @Override
13254    public boolean isStorageLow() {
13255        final long token = Binder.clearCallingIdentity();
13256        try {
13257            final DeviceStorageMonitorInternal
13258                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13259            if (dsm != null) {
13260                return dsm.isMemoryLow();
13261            } else {
13262                return false;
13263            }
13264        } finally {
13265            Binder.restoreCallingIdentity(token);
13266        }
13267    }
13268
13269    @Override
13270    public IPackageInstaller getPackageInstaller() {
13271        return mInstallerService;
13272    }
13273
13274    private boolean userNeedsBadging(int userId) {
13275        int index = mUserNeedsBadging.indexOfKey(userId);
13276        if (index < 0) {
13277            final UserInfo userInfo;
13278            final long token = Binder.clearCallingIdentity();
13279            try {
13280                userInfo = sUserManager.getUserInfo(userId);
13281            } finally {
13282                Binder.restoreCallingIdentity(token);
13283            }
13284            final boolean b;
13285            if (userInfo != null && userInfo.isManagedProfile()) {
13286                b = true;
13287            } else {
13288                b = false;
13289            }
13290            mUserNeedsBadging.put(userId, b);
13291            return b;
13292        }
13293        return mUserNeedsBadging.valueAt(index);
13294    }
13295
13296    @Override
13297    public KeySet getKeySetByAlias(String packageName, String alias) {
13298        if (packageName == null || alias == null) {
13299            return null;
13300        }
13301        synchronized(mPackages) {
13302            final PackageParser.Package pkg = mPackages.get(packageName);
13303            if (pkg == null) {
13304                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13305                throw new IllegalArgumentException("Unknown package: " + packageName);
13306            }
13307            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13308            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13309        }
13310    }
13311
13312    @Override
13313    public KeySet getSigningKeySet(String packageName) {
13314        if (packageName == null) {
13315            return null;
13316        }
13317        synchronized(mPackages) {
13318            final PackageParser.Package pkg = mPackages.get(packageName);
13319            if (pkg == null) {
13320                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13321                throw new IllegalArgumentException("Unknown package: " + packageName);
13322            }
13323            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13324                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13325                throw new SecurityException("May not access signing KeySet of other apps.");
13326            }
13327            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13328            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13329        }
13330    }
13331
13332    @Override
13333    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13334        if (packageName == null || ks == null) {
13335            return false;
13336        }
13337        synchronized(mPackages) {
13338            final PackageParser.Package pkg = mPackages.get(packageName);
13339            if (pkg == null) {
13340                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13341                throw new IllegalArgumentException("Unknown package: " + packageName);
13342            }
13343            IBinder ksh = ks.getToken();
13344            if (ksh instanceof KeySetHandle) {
13345                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13346                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13347            }
13348            return false;
13349        }
13350    }
13351
13352    @Override
13353    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13354        if (packageName == null || ks == null) {
13355            return false;
13356        }
13357        synchronized(mPackages) {
13358            final PackageParser.Package pkg = mPackages.get(packageName);
13359            if (pkg == null) {
13360                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13361                throw new IllegalArgumentException("Unknown package: " + packageName);
13362            }
13363            IBinder ksh = ks.getToken();
13364            if (ksh instanceof KeySetHandle) {
13365                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13366                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13367            }
13368            return false;
13369        }
13370    }
13371
13372    public void getUsageStatsIfNoPackageUsageInfo() {
13373        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13374            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13375            if (usm == null) {
13376                throw new IllegalStateException("UsageStatsManager must be initialized");
13377            }
13378            long now = System.currentTimeMillis();
13379            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13380            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13381                String packageName = entry.getKey();
13382                PackageParser.Package pkg = mPackages.get(packageName);
13383                if (pkg == null) {
13384                    continue;
13385                }
13386                UsageStats usage = entry.getValue();
13387                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13388                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13389            }
13390        }
13391    }
13392
13393    /**
13394     * Check and throw if the given before/after packages would be considered a
13395     * downgrade.
13396     */
13397    private static void checkDowngrade(PackageParser.Package before, PackageInfoLite after)
13398            throws PackageManagerException {
13399        if (after.versionCode < before.mVersionCode) {
13400            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13401                    "Update version code " + after.versionCode + " is older than current "
13402                    + before.mVersionCode);
13403        } else if (after.versionCode == before.mVersionCode) {
13404            if (after.baseRevisionCode < before.baseRevisionCode) {
13405                throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13406                        "Update base revision code " + after.baseRevisionCode
13407                        + " is older than current " + before.baseRevisionCode);
13408            }
13409
13410            if (!ArrayUtils.isEmpty(after.splitNames)) {
13411                for (int i = 0; i < after.splitNames.length; i++) {
13412                    final String splitName = after.splitNames[i];
13413                    final int j = ArrayUtils.indexOf(before.splitNames, splitName);
13414                    if (j != -1) {
13415                        if (after.splitRevisionCodes[i] < before.splitRevisionCodes[j]) {
13416                            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13417                                    "Update split " + splitName + " revision code "
13418                                    + after.splitRevisionCodes[i] + " is older than current "
13419                                    + before.splitRevisionCodes[j]);
13420                        }
13421                    }
13422                }
13423            }
13424        }
13425    }
13426}
13427