PackageManagerService.java revision 8c04facdf5e76fb34c55cfe3dc9a0216322b91b8 
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
277    static final int REMOVE_CHATTY = 1<<16;
278
279    /**
280     * Timeout (in milliseconds) after which the watchdog should declare that
281     * our handler thread is wedged.  The usual default for such things is one
282     * minute but we sometimes do very lengthy I/O operations on this thread,
283     * such as installing multi-gigabyte applications, so ours needs to be longer.
284     */
285    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
286
287    /**
288     * Wall-clock timeout (in milliseconds) after which we *require* that an fstrim
289     * be run on this device.  We use the value in the Settings.Global.MANDATORY_FSTRIM_INTERVAL
290     * settings entry if available, otherwise we use the hardcoded default.  If it's been
291     * more than this long since the last fstrim, we force one during the boot sequence.
292     *
293     * This backstops other fstrim scheduling:  if the device is alive at midnight+idle,
294     * one gets run at the next available charging+idle time.  This final mandatory
295     * no-fstrim check kicks in only of the other scheduling criteria is never met.
296     */
297    private static final long DEFAULT_MANDATORY_FSTRIM_INTERVAL = 3 * DateUtils.DAY_IN_MILLIS;
298
299    /**
300     * Whether verification is enabled by default.
301     */
302    private static final boolean DEFAULT_VERIFY_ENABLE = true;
303
304    /**
305     * The default maximum time to wait for the verification agent to return in
306     * milliseconds.
307     */
308    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
309
310    /**
311     * The default response for package verification timeout.
312     *
313     * This can be either PackageManager.VERIFICATION_ALLOW or
314     * PackageManager.VERIFICATION_REJECT.
315     */
316    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
317
318    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
319
320    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
321            DEFAULT_CONTAINER_PACKAGE,
322            "com.android.defcontainer.DefaultContainerService");
323
324    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
325
326    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
327
328    final ServiceThread mHandlerThread;
329
330    final PackageHandler mHandler;
331
332    /**
333     * Messages for {@link #mHandler} that need to wait for system ready before
334     * being dispatched.
335     */
336    private ArrayList<Message> mPostSystemReadyMessages;
337
338    final int mSdkVersion = Build.VERSION.SDK_INT;
339
340    final Context mContext;
341    final boolean mFactoryTest;
342    final boolean mOnlyCore;
343    final boolean mLazyDexOpt;
344    final long mDexOptLRUThresholdInMills;
345    final DisplayMetrics mMetrics;
346    final int mDefParseFlags;
347    final String[] mSeparateProcesses;
348    final boolean mIsUpgrade;
349
350    // This is where all application persistent data goes.
351    final File mAppDataDir;
352
353    // This is where all application persistent data goes for secondary users.
354    final File mUserAppDataDir;
355
356    /** The location for ASEC container files on internal storage. */
357    final String mAsecInternalPath;
358
359    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
360    // LOCK HELD.  Can be called with mInstallLock held.
361    final Installer mInstaller;
362
363    /** Directory where installed third-party apps stored */
364    final File mAppInstallDir;
365
366    /**
367     * Directory to which applications installed internally have their
368     * 32 bit native libraries copied.
369     */
370    private File mAppLib32InstallDir;
371
372    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
373    // apps.
374    final File mDrmAppPrivateInstallDir;
375
376    // ----------------------------------------------------------------
377
378    // Lock for state used when installing and doing other long running
379    // operations.  Methods that must be called with this lock held have
380    // the suffix "LI".
381    final Object mInstallLock = new Object();
382
383    // ----------------------------------------------------------------
384
385    // Keys are String (package name), values are Package.  This also serves
386    // as the lock for the global state.  Methods that must be called with
387    // this lock held have the prefix "LP".
388    final ArrayMap<String, PackageParser.Package> mPackages =
389            new ArrayMap<String, PackageParser.Package>();
390
391    // Tracks available target package names -> overlay package paths.
392    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
393        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
394
395    final Settings mSettings;
396    boolean mRestoredSettings;
397
398    // System configuration read by SystemConfig.
399    final int[] mGlobalGids;
400    final SparseArray<ArraySet<String>> mSystemPermissions;
401    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
402
403    // If mac_permissions.xml was found for seinfo labeling.
404    boolean mFoundPolicyFile;
405
406    // If a recursive restorecon of /data/data/<pkg> is needed.
407    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
408
409    public static final class SharedLibraryEntry {
410        public final String path;
411        public final String apk;
412
413        SharedLibraryEntry(String _path, String _apk) {
414            path = _path;
415            apk = _apk;
416        }
417    }
418
419    // Currently known shared libraries.
420    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
421            new ArrayMap<String, SharedLibraryEntry>();
422
423    // All available activities, for your resolving pleasure.
424    final ActivityIntentResolver mActivities =
425            new ActivityIntentResolver();
426
427    // All available receivers, for your resolving pleasure.
428    final ActivityIntentResolver mReceivers =
429            new ActivityIntentResolver();
430
431    // All available services, for your resolving pleasure.
432    final ServiceIntentResolver mServices = new ServiceIntentResolver();
433
434    // All available providers, for your resolving pleasure.
435    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
436
437    // Mapping from provider base names (first directory in content URI codePath)
438    // to the provider information.
439    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
440            new ArrayMap<String, PackageParser.Provider>();
441
442    // Mapping from instrumentation class names to info about them.
443    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
444            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
445
446    // Mapping from permission names to info about them.
447    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
448            new ArrayMap<String, PackageParser.PermissionGroup>();
449
450    // Packages whose data we have transfered into another package, thus
451    // should no longer exist.
452    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
453
454    // Broadcast actions that are only available to the system.
455    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
456
457    /** List of packages waiting for verification. */
458    final SparseArray<PackageVerificationState> mPendingVerification
459            = new SparseArray<PackageVerificationState>();
460
461    /** Set of packages associated with each app op permission. */
462    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
463
464    final PackageInstallerService mInstallerService;
465
466    private final PackageDexOptimizer mPackageDexOptimizer;
467    // Cache of users who need badging.
468    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
469
470    /** Token for keys in mPendingVerification. */
471    private int mPendingVerificationToken = 0;
472
473    volatile boolean mSystemReady;
474    volatile boolean mSafeMode;
475    volatile boolean mHasSystemUidErrors;
476
477    ApplicationInfo mAndroidApplication;
478    final ActivityInfo mResolveActivity = new ActivityInfo();
479    final ResolveInfo mResolveInfo = new ResolveInfo();
480    ComponentName mResolveComponentName;
481    PackageParser.Package mPlatformPackage;
482    ComponentName mCustomResolverComponentName;
483
484    boolean mResolverReplaced = false;
485
486    // Set of pending broadcasts for aggregating enable/disable of components.
487    static class PendingPackageBroadcasts {
488        // for each user id, a map of <package name -> components within that package>
489        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
490
491        public PendingPackageBroadcasts() {
492            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
493        }
494
495        public ArrayList<String> get(int userId, String packageName) {
496            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
497            return packages.get(packageName);
498        }
499
500        public void put(int userId, String packageName, ArrayList<String> components) {
501            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
502            packages.put(packageName, components);
503        }
504
505        public void remove(int userId, String packageName) {
506            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
507            if (packages != null) {
508                packages.remove(packageName);
509            }
510        }
511
512        public void remove(int userId) {
513            mUidMap.remove(userId);
514        }
515
516        public int userIdCount() {
517            return mUidMap.size();
518        }
519
520        public int userIdAt(int n) {
521            return mUidMap.keyAt(n);
522        }
523
524        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
525            return mUidMap.get(userId);
526        }
527
528        public int size() {
529            // total number of pending broadcast entries across all userIds
530            int num = 0;
531            for (int i = 0; i< mUidMap.size(); i++) {
532                num += mUidMap.valueAt(i).size();
533            }
534            return num;
535        }
536
537        public void clear() {
538            mUidMap.clear();
539        }
540
541        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
542            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
543            if (map == null) {
544                map = new ArrayMap<String, ArrayList<String>>();
545                mUidMap.put(userId, map);
546            }
547            return map;
548        }
549    }
550    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
551
552    // Service Connection to remote media container service to copy
553    // package uri's from external media onto secure containers
554    // or internal storage.
555    private IMediaContainerService mContainerService = null;
556
557    static final int SEND_PENDING_BROADCAST = 1;
558    static final int MCS_BOUND = 3;
559    static final int END_COPY = 4;
560    static final int INIT_COPY = 5;
561    static final int MCS_UNBIND = 6;
562    static final int START_CLEANING_PACKAGE = 7;
563    static final int FIND_INSTALL_LOC = 8;
564    static final int POST_INSTALL = 9;
565    static final int MCS_RECONNECT = 10;
566    static final int MCS_GIVE_UP = 11;
567    static final int UPDATED_MEDIA_STATUS = 12;
568    static final int WRITE_SETTINGS = 13;
569    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
570    static final int PACKAGE_VERIFIED = 15;
571    static final int CHECK_PENDING_VERIFICATION = 16;
572
573    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
574
575    // Delay time in millisecs
576    static final int BROADCAST_DELAY = 10 * 1000;
577
578    static UserManagerService sUserManager;
579
580    // Stores a list of users whose package restrictions file needs to be updated
581    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
582
583    final private DefaultContainerConnection mDefContainerConn =
584            new DefaultContainerConnection();
585    class DefaultContainerConnection implements ServiceConnection {
586        public void onServiceConnected(ComponentName name, IBinder service) {
587            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
588            IMediaContainerService imcs =
589                IMediaContainerService.Stub.asInterface(service);
590            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
591        }
592
593        public void onServiceDisconnected(ComponentName name) {
594            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
595        }
596    };
597
598    // Recordkeeping of restore-after-install operations that are currently in flight
599    // between the Package Manager and the Backup Manager
600    class PostInstallData {
601        public InstallArgs args;
602        public PackageInstalledInfo res;
603
604        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
605            args = _a;
606            res = _r;
607        }
608    };
609    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
610    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
611
612    private final String mRequiredVerifierPackage;
613
614    private final PackageUsage mPackageUsage = new PackageUsage();
615
616    private class PackageUsage {
617        private static final int WRITE_INTERVAL
618            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
619
620        private final Object mFileLock = new Object();
621        private final AtomicLong mLastWritten = new AtomicLong(0);
622        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
623
624        private boolean mIsHistoricalPackageUsageAvailable = true;
625
626        boolean isHistoricalPackageUsageAvailable() {
627            return mIsHistoricalPackageUsageAvailable;
628        }
629
630        void write(boolean force) {
631            if (force) {
632                writeInternal();
633                return;
634            }
635            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
636                && !DEBUG_DEXOPT) {
637                return;
638            }
639            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
640                new Thread("PackageUsage_DiskWriter") {
641                    @Override
642                    public void run() {
643                        try {
644                            writeInternal();
645                        } finally {
646                            mBackgroundWriteRunning.set(false);
647                        }
648                    }
649                }.start();
650            }
651        }
652
653        private void writeInternal() {
654            synchronized (mPackages) {
655                synchronized (mFileLock) {
656                    AtomicFile file = getFile();
657                    FileOutputStream f = null;
658                    try {
659                        f = file.startWrite();
660                        BufferedOutputStream out = new BufferedOutputStream(f);
661                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
662                        StringBuilder sb = new StringBuilder();
663                        for (PackageParser.Package pkg : mPackages.values()) {
664                            if (pkg.mLastPackageUsageTimeInMills == 0) {
665                                continue;
666                            }
667                            sb.setLength(0);
668                            sb.append(pkg.packageName);
669                            sb.append(' ');
670                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
671                            sb.append('\n');
672                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
673                        }
674                        out.flush();
675                        file.finishWrite(f);
676                    } catch (IOException e) {
677                        if (f != null) {
678                            file.failWrite(f);
679                        }
680                        Log.e(TAG, "Failed to write package usage times", e);
681                    }
682                }
683            }
684            mLastWritten.set(SystemClock.elapsedRealtime());
685        }
686
687        void readLP() {
688            synchronized (mFileLock) {
689                AtomicFile file = getFile();
690                BufferedInputStream in = null;
691                try {
692                    in = new BufferedInputStream(file.openRead());
693                    StringBuffer sb = new StringBuffer();
694                    while (true) {
695                        String packageName = readToken(in, sb, ' ');
696                        if (packageName == null) {
697                            break;
698                        }
699                        String timeInMillisString = readToken(in, sb, '\n');
700                        if (timeInMillisString == null) {
701                            throw new IOException("Failed to find last usage time for package "
702                                                  + packageName);
703                        }
704                        PackageParser.Package pkg = mPackages.get(packageName);
705                        if (pkg == null) {
706                            continue;
707                        }
708                        long timeInMillis;
709                        try {
710                            timeInMillis = Long.parseLong(timeInMillisString.toString());
711                        } catch (NumberFormatException e) {
712                            throw new IOException("Failed to parse " + timeInMillisString
713                                                  + " as a long.", e);
714                        }
715                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
716                    }
717                } catch (FileNotFoundException expected) {
718                    mIsHistoricalPackageUsageAvailable = false;
719                } catch (IOException e) {
720                    Log.w(TAG, "Failed to read package usage times", e);
721                } finally {
722                    IoUtils.closeQuietly(in);
723                }
724            }
725            mLastWritten.set(SystemClock.elapsedRealtime());
726        }
727
728        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
729                throws IOException {
730            sb.setLength(0);
731            while (true) {
732                int ch = in.read();
733                if (ch == -1) {
734                    if (sb.length() == 0) {
735                        return null;
736                    }
737                    throw new IOException("Unexpected EOF");
738                }
739                if (ch == endOfToken) {
740                    return sb.toString();
741                }
742                sb.append((char)ch);
743            }
744        }
745
746        private AtomicFile getFile() {
747            File dataDir = Environment.getDataDirectory();
748            File systemDir = new File(dataDir, "system");
749            File fname = new File(systemDir, "package-usage.list");
750            return new AtomicFile(fname);
751        }
752    }
753
754    class PackageHandler extends Handler {
755        private boolean mBound = false;
756        final ArrayList<HandlerParams> mPendingInstalls =
757            new ArrayList<HandlerParams>();
758
759        private boolean connectToService() {
760            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
761                    " DefaultContainerService");
762            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
763            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
764            if (mContext.bindServiceAsUser(service, mDefContainerConn,
765                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
766                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
767                mBound = true;
768                return true;
769            }
770            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
771            return false;
772        }
773
774        private void disconnectService() {
775            mContainerService = null;
776            mBound = false;
777            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
778            mContext.unbindService(mDefContainerConn);
779            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
780        }
781
782        PackageHandler(Looper looper) {
783            super(looper);
784        }
785
786        public void handleMessage(Message msg) {
787            try {
788                doHandleMessage(msg);
789            } finally {
790                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
791            }
792        }
793
794        void doHandleMessage(Message msg) {
795            switch (msg.what) {
796                case INIT_COPY: {
797                    HandlerParams params = (HandlerParams) msg.obj;
798                    int idx = mPendingInstalls.size();
799                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
800                    // If a bind was already initiated we dont really
801                    // need to do anything. The pending install
802                    // will be processed later on.
803                    if (!mBound) {
804                        // If this is the only one pending we might
805                        // have to bind to the service again.
806                        if (!connectToService()) {
807                            Slog.e(TAG, "Failed to bind to media container service");
808                            params.serviceError();
809                            return;
810                        } else {
811                            // Once we bind to the service, the first
812                            // pending request will be processed.
813                            mPendingInstalls.add(idx, params);
814                        }
815                    } else {
816                        mPendingInstalls.add(idx, params);
817                        // Already bound to the service. Just make
818                        // sure we trigger off processing the first request.
819                        if (idx == 0) {
820                            mHandler.sendEmptyMessage(MCS_BOUND);
821                        }
822                    }
823                    break;
824                }
825                case MCS_BOUND: {
826                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
827                    if (msg.obj != null) {
828                        mContainerService = (IMediaContainerService) msg.obj;
829                    }
830                    if (mContainerService == null) {
831                        // Something seriously wrong. Bail out
832                        Slog.e(TAG, "Cannot bind to media container service");
833                        for (HandlerParams params : mPendingInstalls) {
834                            // Indicate service bind error
835                            params.serviceError();
836                        }
837                        mPendingInstalls.clear();
838                    } else if (mPendingInstalls.size() > 0) {
839                        HandlerParams params = mPendingInstalls.get(0);
840                        if (params != null) {
841                            if (params.startCopy()) {
842                                // We are done...  look for more work or to
843                                // go idle.
844                                if (DEBUG_SD_INSTALL) Log.i(TAG,
845                                        "Checking for more work or unbind...");
846                                // Delete pending install
847                                if (mPendingInstalls.size() > 0) {
848                                    mPendingInstalls.remove(0);
849                                }
850                                if (mPendingInstalls.size() == 0) {
851                                    if (mBound) {
852                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
853                                                "Posting delayed MCS_UNBIND");
854                                        removeMessages(MCS_UNBIND);
855                                        Message ubmsg = obtainMessage(MCS_UNBIND);
856                                        // Unbind after a little delay, to avoid
857                                        // continual thrashing.
858                                        sendMessageDelayed(ubmsg, 10000);
859                                    }
860                                } else {
861                                    // There are more pending requests in queue.
862                                    // Just post MCS_BOUND message to trigger processing
863                                    // of next pending install.
864                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
865                                            "Posting MCS_BOUND for next work");
866                                    mHandler.sendEmptyMessage(MCS_BOUND);
867                                }
868                            }
869                        }
870                    } else {
871                        // Should never happen ideally.
872                        Slog.w(TAG, "Empty queue");
873                    }
874                    break;
875                }
876                case MCS_RECONNECT: {
877                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
878                    if (mPendingInstalls.size() > 0) {
879                        if (mBound) {
880                            disconnectService();
881                        }
882                        if (!connectToService()) {
883                            Slog.e(TAG, "Failed to bind to media container service");
884                            for (HandlerParams params : mPendingInstalls) {
885                                // Indicate service bind error
886                                params.serviceError();
887                            }
888                            mPendingInstalls.clear();
889                        }
890                    }
891                    break;
892                }
893                case MCS_UNBIND: {
894                    // If there is no actual work left, then time to unbind.
895                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
896
897                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
898                        if (mBound) {
899                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
900
901                            disconnectService();
902                        }
903                    } else if (mPendingInstalls.size() > 0) {
904                        // There are more pending requests in queue.
905                        // Just post MCS_BOUND message to trigger processing
906                        // of next pending install.
907                        mHandler.sendEmptyMessage(MCS_BOUND);
908                    }
909
910                    break;
911                }
912                case MCS_GIVE_UP: {
913                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
914                    mPendingInstalls.remove(0);
915                    break;
916                }
917                case SEND_PENDING_BROADCAST: {
918                    String packages[];
919                    ArrayList<String> components[];
920                    int size = 0;
921                    int uids[];
922                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
923                    synchronized (mPackages) {
924                        if (mPendingBroadcasts == null) {
925                            return;
926                        }
927                        size = mPendingBroadcasts.size();
928                        if (size <= 0) {
929                            // Nothing to be done. Just return
930                            return;
931                        }
932                        packages = new String[size];
933                        components = new ArrayList[size];
934                        uids = new int[size];
935                        int i = 0;  // filling out the above arrays
936
937                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
938                            int packageUserId = mPendingBroadcasts.userIdAt(n);
939                            Iterator<Map.Entry<String, ArrayList<String>>> it
940                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
941                                            .entrySet().iterator();
942                            while (it.hasNext() && i < size) {
943                                Map.Entry<String, ArrayList<String>> ent = it.next();
944                                packages[i] = ent.getKey();
945                                components[i] = ent.getValue();
946                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
947                                uids[i] = (ps != null)
948                                        ? UserHandle.getUid(packageUserId, ps.appId)
949                                        : -1;
950                                i++;
951                            }
952                        }
953                        size = i;
954                        mPendingBroadcasts.clear();
955                    }
956                    // Send broadcasts
957                    for (int i = 0; i < size; i++) {
958                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
959                    }
960                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
961                    break;
962                }
963                case START_CLEANING_PACKAGE: {
964                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
965                    final String packageName = (String)msg.obj;
966                    final int userId = msg.arg1;
967                    final boolean andCode = msg.arg2 != 0;
968                    synchronized (mPackages) {
969                        if (userId == UserHandle.USER_ALL) {
970                            int[] users = sUserManager.getUserIds();
971                            for (int user : users) {
972                                mSettings.addPackageToCleanLPw(
973                                        new PackageCleanItem(user, packageName, andCode));
974                            }
975                        } else {
976                            mSettings.addPackageToCleanLPw(
977                                    new PackageCleanItem(userId, packageName, andCode));
978                        }
979                    }
980                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
981                    startCleaningPackages();
982                } break;
983                case POST_INSTALL: {
984                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
985                    PostInstallData data = mRunningInstalls.get(msg.arg1);
986                    mRunningInstalls.delete(msg.arg1);
987                    boolean deleteOld = false;
988
989                    if (data != null) {
990                        InstallArgs args = data.args;
991                        PackageInstalledInfo res = data.res;
992
993                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
994                            res.removedInfo.sendBroadcast(false, true, false);
995                            Bundle extras = new Bundle(1);
996                            extras.putInt(Intent.EXTRA_UID, res.uid);
997                            // Determine the set of users who are adding this
998                            // package for the first time vs. those who are seeing
999                            // an update.
1000                            int[] firstUsers;
1001                            int[] updateUsers = new int[0];
1002                            if (res.origUsers == null || res.origUsers.length == 0) {
1003                                firstUsers = res.newUsers;
1004                            } else {
1005                                firstUsers = new int[0];
1006                                for (int i=0; i<res.newUsers.length; i++) {
1007                                    int user = res.newUsers[i];
1008                                    boolean isNew = true;
1009                                    for (int j=0; j<res.origUsers.length; j++) {
1010                                        if (res.origUsers[j] == user) {
1011                                            isNew = false;
1012                                            break;
1013                                        }
1014                                    }
1015                                    if (isNew) {
1016                                        int[] newFirst = new int[firstUsers.length+1];
1017                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1018                                                firstUsers.length);
1019                                        newFirst[firstUsers.length] = user;
1020                                        firstUsers = newFirst;
1021                                    } else {
1022                                        int[] newUpdate = new int[updateUsers.length+1];
1023                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1024                                                updateUsers.length);
1025                                        newUpdate[updateUsers.length] = user;
1026                                        updateUsers = newUpdate;
1027                                    }
1028                                }
1029                            }
1030                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1031                                    res.pkg.applicationInfo.packageName,
1032                                    extras, null, null, firstUsers);
1033                            final boolean update = res.removedInfo.removedPackage != null;
1034                            if (update) {
1035                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1036                            }
1037                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1038                                    res.pkg.applicationInfo.packageName,
1039                                    extras, null, null, updateUsers);
1040                            if (update) {
1041                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1042                                        res.pkg.applicationInfo.packageName,
1043                                        extras, null, null, updateUsers);
1044                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1045                                        null, null,
1046                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1047
1048                                // treat asec-hosted packages like removable media on upgrade
1049                                if (res.pkg.isForwardLocked() || isExternal(res.pkg)) {
1050                                    if (DEBUG_INSTALL) {
1051                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1052                                                + " is ASEC-hosted -> AVAILABLE");
1053                                    }
1054                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1055                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1056                                    pkgList.add(res.pkg.applicationInfo.packageName);
1057                                    sendResourcesChangedBroadcast(true, true,
1058                                            pkgList,uidArray, null);
1059                                }
1060                            }
1061                            if (res.removedInfo.args != null) {
1062                                // Remove the replaced package's older resources safely now
1063                                deleteOld = true;
1064                            }
1065
1066                            // Log current value of "unknown sources" setting
1067                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1068                                getUnknownSourcesSettings());
1069                        }
1070                        // Force a gc to clear up things
1071                        Runtime.getRuntime().gc();
1072                        // We delete after a gc for applications  on sdcard.
1073                        if (deleteOld) {
1074                            synchronized (mInstallLock) {
1075                                res.removedInfo.args.doPostDeleteLI(true);
1076                            }
1077                        }
1078                        if (args.observer != null) {
1079                            try {
1080                                Bundle extras = extrasForInstallResult(res);
1081                                args.observer.onPackageInstalled(res.name, res.returnCode,
1082                                        res.returnMsg, extras);
1083                            } catch (RemoteException e) {
1084                                Slog.i(TAG, "Observer no longer exists.");
1085                            }
1086                        }
1087                    } else {
1088                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1089                    }
1090                } break;
1091                case UPDATED_MEDIA_STATUS: {
1092                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1093                    boolean reportStatus = msg.arg1 == 1;
1094                    boolean doGc = msg.arg2 == 1;
1095                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1096                    if (doGc) {
1097                        // Force a gc to clear up stale containers.
1098                        Runtime.getRuntime().gc();
1099                    }
1100                    if (msg.obj != null) {
1101                        @SuppressWarnings("unchecked")
1102                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1103                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1104                        // Unload containers
1105                        unloadAllContainers(args);
1106                    }
1107                    if (reportStatus) {
1108                        try {
1109                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1110                            PackageHelper.getMountService().finishMediaUpdate();
1111                        } catch (RemoteException e) {
1112                            Log.e(TAG, "MountService not running?");
1113                        }
1114                    }
1115                } break;
1116                case WRITE_SETTINGS: {
1117                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1118                    synchronized (mPackages) {
1119                        removeMessages(WRITE_SETTINGS);
1120                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1121                        mSettings.writeLPr();
1122                        mDirtyUsers.clear();
1123                    }
1124                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1125                } break;
1126                case WRITE_PACKAGE_RESTRICTIONS: {
1127                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1128                    synchronized (mPackages) {
1129                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1130                        for (int userId : mDirtyUsers) {
1131                            mSettings.writePackageRestrictionsLPr(userId);
1132                        }
1133                        mDirtyUsers.clear();
1134                    }
1135                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1136                } break;
1137                case CHECK_PENDING_VERIFICATION: {
1138                    final int verificationId = msg.arg1;
1139                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1140
1141                    if ((state != null) && !state.timeoutExtended()) {
1142                        final InstallArgs args = state.getInstallArgs();
1143                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1144
1145                        Slog.i(TAG, "Verification timed out for " + originUri);
1146                        mPendingVerification.remove(verificationId);
1147
1148                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1149
1150                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1151                            Slog.i(TAG, "Continuing with installation of " + originUri);
1152                            state.setVerifierResponse(Binder.getCallingUid(),
1153                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1154                            broadcastPackageVerified(verificationId, originUri,
1155                                    PackageManager.VERIFICATION_ALLOW,
1156                                    state.getInstallArgs().getUser());
1157                            try {
1158                                ret = args.copyApk(mContainerService, true);
1159                            } catch (RemoteException e) {
1160                                Slog.e(TAG, "Could not contact the ContainerService");
1161                            }
1162                        } else {
1163                            broadcastPackageVerified(verificationId, originUri,
1164                                    PackageManager.VERIFICATION_REJECT,
1165                                    state.getInstallArgs().getUser());
1166                        }
1167
1168                        processPendingInstall(args, ret);
1169                        mHandler.sendEmptyMessage(MCS_UNBIND);
1170                    }
1171                    break;
1172                }
1173                case PACKAGE_VERIFIED: {
1174                    final int verificationId = msg.arg1;
1175
1176                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1177                    if (state == null) {
1178                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1179                        break;
1180                    }
1181
1182                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1183
1184                    state.setVerifierResponse(response.callerUid, response.code);
1185
1186                    if (state.isVerificationComplete()) {
1187                        mPendingVerification.remove(verificationId);
1188
1189                        final InstallArgs args = state.getInstallArgs();
1190                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1191
1192                        int ret;
1193                        if (state.isInstallAllowed()) {
1194                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1195                            broadcastPackageVerified(verificationId, originUri,
1196                                    response.code, state.getInstallArgs().getUser());
1197                            try {
1198                                ret = args.copyApk(mContainerService, true);
1199                            } catch (RemoteException e) {
1200                                Slog.e(TAG, "Could not contact the ContainerService");
1201                            }
1202                        } else {
1203                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1204                        }
1205
1206                        processPendingInstall(args, ret);
1207
1208                        mHandler.sendEmptyMessage(MCS_UNBIND);
1209                    }
1210
1211                    break;
1212                }
1213            }
1214        }
1215    }
1216
1217    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1218        Bundle extras = null;
1219        switch (res.returnCode) {
1220            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1221                extras = new Bundle();
1222                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1223                        res.origPermission);
1224                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1225                        res.origPackage);
1226                break;
1227            }
1228        }
1229        return extras;
1230    }
1231
1232    void scheduleWriteSettingsLocked() {
1233        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1234            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1235        }
1236    }
1237
1238    void scheduleWritePackageRestrictionsLocked(int userId) {
1239        if (!sUserManager.exists(userId)) return;
1240        mDirtyUsers.add(userId);
1241        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1242            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1243        }
1244    }
1245
1246    public static final PackageManagerService main(Context context, Installer installer,
1247            boolean factoryTest, boolean onlyCore) {
1248        PackageManagerService m = new PackageManagerService(context, installer,
1249                factoryTest, onlyCore);
1250        ServiceManager.addService("package", m);
1251        return m;
1252    }
1253
1254    static String[] splitString(String str, char sep) {
1255        int count = 1;
1256        int i = 0;
1257        while ((i=str.indexOf(sep, i)) >= 0) {
1258            count++;
1259            i++;
1260        }
1261
1262        String[] res = new String[count];
1263        i=0;
1264        count = 0;
1265        int lastI=0;
1266        while ((i=str.indexOf(sep, i)) >= 0) {
1267            res[count] = str.substring(lastI, i);
1268            count++;
1269            i++;
1270            lastI = i;
1271        }
1272        res[count] = str.substring(lastI, str.length());
1273        return res;
1274    }
1275
1276    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1277        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1278                Context.DISPLAY_SERVICE);
1279        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1280    }
1281
1282    public PackageManagerService(Context context, Installer installer,
1283            boolean factoryTest, boolean onlyCore) {
1284        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1285                SystemClock.uptimeMillis());
1286
1287        if (mSdkVersion <= 0) {
1288            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1289        }
1290
1291        mContext = context;
1292        mFactoryTest = factoryTest;
1293        mOnlyCore = onlyCore;
1294        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1295        mMetrics = new DisplayMetrics();
1296        mSettings = new Settings(context);
1297        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1298                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1299        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1300                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1301        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1302                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1303        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1304                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1305        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1306                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1307        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1308                ApplicationInfo.FLAG_SYSTEM, ApplicationInfo.PRIVATE_FLAG_PRIVILEGED);
1309
1310        // TODO: add a property to control this?
1311        long dexOptLRUThresholdInMinutes;
1312        if (mLazyDexOpt) {
1313            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1314        } else {
1315            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1316        }
1317        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1318
1319        String separateProcesses = SystemProperties.get("debug.separate_processes");
1320        if (separateProcesses != null && separateProcesses.length() > 0) {
1321            if ("*".equals(separateProcesses)) {
1322                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1323                mSeparateProcesses = null;
1324                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1325            } else {
1326                mDefParseFlags = 0;
1327                mSeparateProcesses = separateProcesses.split(",");
1328                Slog.w(TAG, "Running with debug.separate_processes: "
1329                        + separateProcesses);
1330            }
1331        } else {
1332            mDefParseFlags = 0;
1333            mSeparateProcesses = null;
1334        }
1335
1336        mInstaller = installer;
1337        mPackageDexOptimizer = new PackageDexOptimizer(this);
1338
1339        getDefaultDisplayMetrics(context, mMetrics);
1340
1341        SystemConfig systemConfig = SystemConfig.getInstance();
1342        mGlobalGids = systemConfig.getGlobalGids();
1343        mSystemPermissions = systemConfig.getSystemPermissions();
1344        mAvailableFeatures = systemConfig.getAvailableFeatures();
1345
1346        synchronized (mInstallLock) {
1347        // writer
1348        synchronized (mPackages) {
1349            mHandlerThread = new ServiceThread(TAG,
1350                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1351            mHandlerThread.start();
1352            mHandler = new PackageHandler(mHandlerThread.getLooper());
1353            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1354
1355            File dataDir = Environment.getDataDirectory();
1356            mAppDataDir = new File(dataDir, "data");
1357            mAppInstallDir = new File(dataDir, "app");
1358            mAppLib32InstallDir = new File(dataDir, "app-lib");
1359            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1360            mUserAppDataDir = new File(dataDir, "user");
1361            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1362
1363            sUserManager = new UserManagerService(context, this,
1364                    mInstallLock, mPackages);
1365
1366            // Propagate permission configuration in to package manager.
1367            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1368                    = systemConfig.getPermissions();
1369            for (int i=0; i<permConfig.size(); i++) {
1370                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1371                BasePermission bp = mSettings.mPermissions.get(perm.name);
1372                if (bp == null) {
1373                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1374                    mSettings.mPermissions.put(perm.name, bp);
1375                }
1376                if (perm.gids != null) {
1377                    bp.gids = appendInts(bp.gids, perm.gids);
1378                }
1379            }
1380
1381            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1382            for (int i=0; i<libConfig.size(); i++) {
1383                mSharedLibraries.put(libConfig.keyAt(i),
1384                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1385            }
1386
1387            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1388
1389            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1390                    mSdkVersion, mOnlyCore);
1391
1392            String customResolverActivity = Resources.getSystem().getString(
1393                    R.string.config_customResolverActivity);
1394            if (TextUtils.isEmpty(customResolverActivity)) {
1395                customResolverActivity = null;
1396            } else {
1397                mCustomResolverComponentName = ComponentName.unflattenFromString(
1398                        customResolverActivity);
1399            }
1400
1401            long startTime = SystemClock.uptimeMillis();
1402
1403            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1404                    startTime);
1405
1406            // Set flag to monitor and not change apk file paths when
1407            // scanning install directories.
1408            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1409
1410            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1411
1412            /**
1413             * Add everything in the in the boot class path to the
1414             * list of process files because dexopt will have been run
1415             * if necessary during zygote startup.
1416             */
1417            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1418            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1419
1420            if (bootClassPath != null) {
1421                String[] bootClassPathElements = splitString(bootClassPath, ':');
1422                for (String element : bootClassPathElements) {
1423                    alreadyDexOpted.add(element);
1424                }
1425            } else {
1426                Slog.w(TAG, "No BOOTCLASSPATH found!");
1427            }
1428
1429            if (systemServerClassPath != null) {
1430                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1431                for (String element : systemServerClassPathElements) {
1432                    alreadyDexOpted.add(element);
1433                }
1434            } else {
1435                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1436            }
1437
1438            final List<String> allInstructionSets = InstructionSets.getAllInstructionSets();
1439            final String[] dexCodeInstructionSets =
1440                    getDexCodeInstructionSets(
1441                            allInstructionSets.toArray(new String[allInstructionSets.size()]));
1442
1443            /**
1444             * Ensure all external libraries have had dexopt run on them.
1445             */
1446            if (mSharedLibraries.size() > 0) {
1447                // NOTE: For now, we're compiling these system "shared libraries"
1448                // (and framework jars) into all available architectures. It's possible
1449                // to compile them only when we come across an app that uses them (there's
1450                // already logic for that in scanPackageLI) but that adds some complexity.
1451                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1452                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1453                        final String lib = libEntry.path;
1454                        if (lib == null) {
1455                            continue;
1456                        }
1457
1458                        try {
1459                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1460                                                                                 dexCodeInstructionSet,
1461                                                                                 false);
1462                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1463                                alreadyDexOpted.add(lib);
1464
1465                                // The list of "shared libraries" we have at this point is
1466                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1467                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1468                                } else {
1469                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1470                                }
1471                            }
1472                        } catch (FileNotFoundException e) {
1473                            Slog.w(TAG, "Library not found: " + lib);
1474                        } catch (IOException e) {
1475                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1476                                    + e.getMessage());
1477                        }
1478                    }
1479                }
1480            }
1481
1482            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1483
1484            // Gross hack for now: we know this file doesn't contain any
1485            // code, so don't dexopt it to avoid the resulting log spew.
1486            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1487
1488            // Gross hack for now: we know this file is only part of
1489            // the boot class path for art, so don't dexopt it to
1490            // avoid the resulting log spew.
1491            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1492
1493            /**
1494             * And there are a number of commands implemented in Java, which
1495             * we currently need to do the dexopt on so that they can be
1496             * run from a non-root shell.
1497             */
1498            String[] frameworkFiles = frameworkDir.list();
1499            if (frameworkFiles != null) {
1500                // TODO: We could compile these only for the most preferred ABI. We should
1501                // first double check that the dex files for these commands are not referenced
1502                // by other system apps.
1503                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1504                    for (int i=0; i<frameworkFiles.length; i++) {
1505                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1506                        String path = libPath.getPath();
1507                        // Skip the file if we already did it.
1508                        if (alreadyDexOpted.contains(path)) {
1509                            continue;
1510                        }
1511                        // Skip the file if it is not a type we want to dexopt.
1512                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1513                            continue;
1514                        }
1515                        try {
1516                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1517                                                                                 dexCodeInstructionSet,
1518                                                                                 false);
1519                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1520                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1521                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1522                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1523                            }
1524                        } catch (FileNotFoundException e) {
1525                            Slog.w(TAG, "Jar not found: " + path);
1526                        } catch (IOException e) {
1527                            Slog.w(TAG, "Exception reading jar: " + path, e);
1528                        }
1529                    }
1530                }
1531            }
1532
1533            // Collect vendor overlay packages.
1534            // (Do this before scanning any apps.)
1535            // For security and version matching reason, only consider
1536            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1537            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1538            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1539                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1540
1541            // Find base frameworks (resource packages without code).
1542            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1543                    | PackageParser.PARSE_IS_SYSTEM_DIR
1544                    | PackageParser.PARSE_IS_PRIVILEGED,
1545                    scanFlags | SCAN_NO_DEX, 0);
1546
1547            // Collected privileged system packages.
1548            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1549            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1550                    | PackageParser.PARSE_IS_SYSTEM_DIR
1551                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1552
1553            // Collect ordinary system packages.
1554            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1555            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1556                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1557
1558            // Collect all vendor packages.
1559            File vendorAppDir = new File("/vendor/app");
1560            try {
1561                vendorAppDir = vendorAppDir.getCanonicalFile();
1562            } catch (IOException e) {
1563                // failed to look up canonical path, continue with original one
1564            }
1565            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1566                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1567
1568            // Collect all OEM packages.
1569            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1570            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1571                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1572
1573            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1574            mInstaller.moveFiles();
1575
1576            // Prune any system packages that no longer exist.
1577            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1578            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1579            if (!mOnlyCore) {
1580                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1581                while (psit.hasNext()) {
1582                    PackageSetting ps = psit.next();
1583
1584                    /*
1585                     * If this is not a system app, it can't be a
1586                     * disable system app.
1587                     */
1588                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1589                        continue;
1590                    }
1591
1592                    /*
1593                     * If the package is scanned, it's not erased.
1594                     */
1595                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1596                    if (scannedPkg != null) {
1597                        /*
1598                         * If the system app is both scanned and in the
1599                         * disabled packages list, then it must have been
1600                         * added via OTA. Remove it from the currently
1601                         * scanned package so the previously user-installed
1602                         * application can be scanned.
1603                         */
1604                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1605                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1606                                    + ps.name + "; removing system app.  Last known codePath="
1607                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1608                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1609                                    + scannedPkg.mVersionCode);
1610                            removePackageLI(ps, true);
1611                            expectingBetter.put(ps.name, ps.codePath);
1612                        }
1613
1614                        continue;
1615                    }
1616
1617                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1618                        psit.remove();
1619                        logCriticalInfo(Log.WARN, "System package " + ps.name
1620                                + " no longer exists; wiping its data");
1621                        removeDataDirsLI(ps.name);
1622                    } else {
1623                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1624                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1625                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1626                        }
1627                    }
1628                }
1629            }
1630
1631            //look for any incomplete package installations
1632            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1633            //clean up list
1634            for(int i = 0; i < deletePkgsList.size(); i++) {
1635                //clean up here
1636                cleanupInstallFailedPackage(deletePkgsList.get(i));
1637            }
1638            //delete tmp files
1639            deleteTempPackageFiles();
1640
1641            // Remove any shared userIDs that have no associated packages
1642            mSettings.pruneSharedUsersLPw();
1643
1644            if (!mOnlyCore) {
1645                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1646                        SystemClock.uptimeMillis());
1647                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1648
1649                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1650                        scanFlags, 0);
1651
1652                /**
1653                 * Remove disable package settings for any updated system
1654                 * apps that were removed via an OTA. If they're not a
1655                 * previously-updated app, remove them completely.
1656                 * Otherwise, just revoke their system-level permissions.
1657                 */
1658                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1659                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1660                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1661
1662                    String msg;
1663                    if (deletedPkg == null) {
1664                        msg = "Updated system package " + deletedAppName
1665                                + " no longer exists; wiping its data";
1666                        removeDataDirsLI(deletedAppName);
1667                    } else {
1668                        msg = "Updated system app + " + deletedAppName
1669                                + " no longer present; removing system privileges for "
1670                                + deletedAppName;
1671
1672                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1673
1674                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1675                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1676                    }
1677                    logCriticalInfo(Log.WARN, msg);
1678                }
1679
1680                /**
1681                 * Make sure all system apps that we expected to appear on
1682                 * the userdata partition actually showed up. If they never
1683                 * appeared, crawl back and revive the system version.
1684                 */
1685                for (int i = 0; i < expectingBetter.size(); i++) {
1686                    final String packageName = expectingBetter.keyAt(i);
1687                    if (!mPackages.containsKey(packageName)) {
1688                        final File scanFile = expectingBetter.valueAt(i);
1689
1690                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1691                                + " but never showed up; reverting to system");
1692
1693                        final int reparseFlags;
1694                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1695                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1696                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1697                                    | PackageParser.PARSE_IS_PRIVILEGED;
1698                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1699                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1700                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1701                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1702                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1703                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1704                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1705                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1706                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1707                        } else {
1708                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1709                            continue;
1710                        }
1711
1712                        mSettings.enableSystemPackageLPw(packageName);
1713
1714                        try {
1715                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1716                        } catch (PackageManagerException e) {
1717                            Slog.e(TAG, "Failed to parse original system package: "
1718                                    + e.getMessage());
1719                        }
1720                    }
1721                }
1722            }
1723
1724            // Now that we know all of the shared libraries, update all clients to have
1725            // the correct library paths.
1726            updateAllSharedLibrariesLPw();
1727
1728            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1729                // NOTE: We ignore potential failures here during a system scan (like
1730                // the rest of the commands above) because there's precious little we
1731                // can do about it. A settings error is reported, though.
1732                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1733                        false /* force dexopt */, false /* defer dexopt */);
1734            }
1735
1736            // Now that we know all the packages we are keeping,
1737            // read and update their last usage times.
1738            mPackageUsage.readLP();
1739
1740            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1741                    SystemClock.uptimeMillis());
1742            Slog.i(TAG, "Time to scan packages: "
1743                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1744                    + " seconds");
1745
1746            // If the platform SDK has changed since the last time we booted,
1747            // we need to re-grant app permission to catch any new ones that
1748            // appear.  This is really a hack, and means that apps can in some
1749            // cases get permissions that the user didn't initially explicitly
1750            // allow...  it would be nice to have some better way to handle
1751            // this situation.
1752            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1753                    != mSdkVersion;
1754            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1755                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1756                    + "; regranting permissions for internal storage");
1757            mSettings.mInternalSdkPlatform = mSdkVersion;
1758
1759            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1760                    | (regrantPermissions
1761                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1762                            : 0));
1763
1764            // If this is the first boot, and it is a normal boot, then
1765            // we need to initialize the default preferred apps.
1766            if (!mRestoredSettings && !onlyCore) {
1767                mSettings.readDefaultPreferredAppsLPw(this, 0);
1768            }
1769
1770            // If this is first boot after an OTA, and a normal boot, then
1771            // we need to clear code cache directories.
1772            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1773            if (mIsUpgrade && !onlyCore) {
1774                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1775                for (String pkgName : mSettings.mPackages.keySet()) {
1776                    deleteCodeCacheDirsLI(pkgName);
1777                }
1778                mSettings.mFingerprint = Build.FINGERPRINT;
1779            }
1780
1781            // All the changes are done during package scanning.
1782            mSettings.updateInternalDatabaseVersion();
1783
1784            // can downgrade to reader
1785            mSettings.writeLPr();
1786
1787            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1788                    SystemClock.uptimeMillis());
1789
1790
1791            mRequiredVerifierPackage = getRequiredVerifierLPr();
1792        } // synchronized (mPackages)
1793        } // synchronized (mInstallLock)
1794
1795        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1796
1797        // Now after opening every single application zip, make sure they
1798        // are all flushed.  Not really needed, but keeps things nice and
1799        // tidy.
1800        Runtime.getRuntime().gc();
1801    }
1802
1803    @Override
1804    public boolean isFirstBoot() {
1805        return !mRestoredSettings;
1806    }
1807
1808    @Override
1809    public boolean isOnlyCoreApps() {
1810        return mOnlyCore;
1811    }
1812
1813    @Override
1814    public boolean isUpgrade() {
1815        return mIsUpgrade;
1816    }
1817
1818    private String getRequiredVerifierLPr() {
1819        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1820        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1821                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1822
1823        String requiredVerifier = null;
1824
1825        final int N = receivers.size();
1826        for (int i = 0; i < N; i++) {
1827            final ResolveInfo info = receivers.get(i);
1828
1829            if (info.activityInfo == null) {
1830                continue;
1831            }
1832
1833            final String packageName = info.activityInfo.packageName;
1834
1835            final PackageSetting ps = mSettings.mPackages.get(packageName);
1836            if (ps == null) {
1837                continue;
1838            }
1839
1840            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1841            if (!gp.grantedPermissions
1842                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1843                continue;
1844            }
1845
1846            if (requiredVerifier != null) {
1847                throw new RuntimeException("There can be only one required verifier");
1848            }
1849
1850            requiredVerifier = packageName;
1851        }
1852
1853        return requiredVerifier;
1854    }
1855
1856    @Override
1857    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1858            throws RemoteException {
1859        try {
1860            return super.onTransact(code, data, reply, flags);
1861        } catch (RuntimeException e) {
1862            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1863                Slog.wtf(TAG, "Package Manager Crash", e);
1864            }
1865            throw e;
1866        }
1867    }
1868
1869    void cleanupInstallFailedPackage(PackageSetting ps) {
1870        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1871
1872        removeDataDirsLI(ps.name);
1873        if (ps.codePath != null) {
1874            if (ps.codePath.isDirectory()) {
1875                FileUtils.deleteContents(ps.codePath);
1876            }
1877            ps.codePath.delete();
1878        }
1879        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1880            if (ps.resourcePath.isDirectory()) {
1881                FileUtils.deleteContents(ps.resourcePath);
1882            }
1883            ps.resourcePath.delete();
1884        }
1885        mSettings.removePackageLPw(ps.name);
1886    }
1887
1888    static int[] appendInts(int[] cur, int[] add) {
1889        if (add == null) return cur;
1890        if (cur == null) return add;
1891        final int N = add.length;
1892        for (int i=0; i<N; i++) {
1893            cur = appendInt(cur, add[i]);
1894        }
1895        return cur;
1896    }
1897
1898    static int[] removeInts(int[] cur, int[] rem) {
1899        if (rem == null) return cur;
1900        if (cur == null) return cur;
1901        final int N = rem.length;
1902        for (int i=0; i<N; i++) {
1903            cur = removeInt(cur, rem[i]);
1904        }
1905        return cur;
1906    }
1907
1908    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1909        if (!sUserManager.exists(userId)) return null;
1910        final PackageSetting ps = (PackageSetting) p.mExtras;
1911        if (ps == null) {
1912            return null;
1913        }
1914        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1915        final PackageUserState state = ps.readUserState(userId);
1916        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1917                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1918                state, userId);
1919    }
1920
1921    @Override
1922    public boolean isPackageAvailable(String packageName, int userId) {
1923        if (!sUserManager.exists(userId)) return false;
1924        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1925        synchronized (mPackages) {
1926            PackageParser.Package p = mPackages.get(packageName);
1927            if (p != null) {
1928                final PackageSetting ps = (PackageSetting) p.mExtras;
1929                if (ps != null) {
1930                    final PackageUserState state = ps.readUserState(userId);
1931                    if (state != null) {
1932                        return PackageParser.isAvailable(state);
1933                    }
1934                }
1935            }
1936        }
1937        return false;
1938    }
1939
1940    @Override
1941    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1942        if (!sUserManager.exists(userId)) return null;
1943        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1944        // reader
1945        synchronized (mPackages) {
1946            PackageParser.Package p = mPackages.get(packageName);
1947            if (DEBUG_PACKAGE_INFO)
1948                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1949            if (p != null) {
1950                return generatePackageInfo(p, flags, userId);
1951            }
1952            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1953                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1954            }
1955        }
1956        return null;
1957    }
1958
1959    @Override
1960    public String[] currentToCanonicalPackageNames(String[] names) {
1961        String[] out = new String[names.length];
1962        // reader
1963        synchronized (mPackages) {
1964            for (int i=names.length-1; i>=0; i--) {
1965                PackageSetting ps = mSettings.mPackages.get(names[i]);
1966                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1967            }
1968        }
1969        return out;
1970    }
1971
1972    @Override
1973    public String[] canonicalToCurrentPackageNames(String[] names) {
1974        String[] out = new String[names.length];
1975        // reader
1976        synchronized (mPackages) {
1977            for (int i=names.length-1; i>=0; i--) {
1978                String cur = mSettings.mRenamedPackages.get(names[i]);
1979                out[i] = cur != null ? cur : names[i];
1980            }
1981        }
1982        return out;
1983    }
1984
1985    @Override
1986    public int getPackageUid(String packageName, int userId) {
1987        if (!sUserManager.exists(userId)) return -1;
1988        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1989        // reader
1990        synchronized (mPackages) {
1991            PackageParser.Package p = mPackages.get(packageName);
1992            if(p != null) {
1993                return UserHandle.getUid(userId, p.applicationInfo.uid);
1994            }
1995            PackageSetting ps = mSettings.mPackages.get(packageName);
1996            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1997                return -1;
1998            }
1999            p = ps.pkg;
2000            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
2001        }
2002    }
2003
2004    @Override
2005    public int[] getPackageGids(String packageName) {
2006        // reader
2007        synchronized (mPackages) {
2008            PackageParser.Package p = mPackages.get(packageName);
2009            if (DEBUG_PACKAGE_INFO)
2010                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
2011            if (p != null) {
2012                final PackageSetting ps = (PackageSetting)p.mExtras;
2013                return ps.getGids();
2014            }
2015        }
2016        // stupid thing to indicate an error.
2017        return new int[0];
2018    }
2019
2020    static final PermissionInfo generatePermissionInfo(
2021            BasePermission bp, int flags) {
2022        if (bp.perm != null) {
2023            return PackageParser.generatePermissionInfo(bp.perm, flags);
2024        }
2025        PermissionInfo pi = new PermissionInfo();
2026        pi.name = bp.name;
2027        pi.packageName = bp.sourcePackage;
2028        pi.nonLocalizedLabel = bp.name;
2029        pi.protectionLevel = bp.protectionLevel;
2030        return pi;
2031    }
2032
2033    @Override
2034    public PermissionInfo getPermissionInfo(String name, int flags) {
2035        // reader
2036        synchronized (mPackages) {
2037            final BasePermission p = mSettings.mPermissions.get(name);
2038            if (p != null) {
2039                return generatePermissionInfo(p, flags);
2040            }
2041            return null;
2042        }
2043    }
2044
2045    @Override
2046    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2047        // reader
2048        synchronized (mPackages) {
2049            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2050            for (BasePermission p : mSettings.mPermissions.values()) {
2051                if (group == null) {
2052                    if (p.perm == null || p.perm.info.group == null) {
2053                        out.add(generatePermissionInfo(p, flags));
2054                    }
2055                } else {
2056                    if (p.perm != null && group.equals(p.perm.info.group)) {
2057                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2058                    }
2059                }
2060            }
2061
2062            if (out.size() > 0) {
2063                return out;
2064            }
2065            return mPermissionGroups.containsKey(group) ? out : null;
2066        }
2067    }
2068
2069    @Override
2070    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2071        // reader
2072        synchronized (mPackages) {
2073            return PackageParser.generatePermissionGroupInfo(
2074                    mPermissionGroups.get(name), flags);
2075        }
2076    }
2077
2078    @Override
2079    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2080        // reader
2081        synchronized (mPackages) {
2082            final int N = mPermissionGroups.size();
2083            ArrayList<PermissionGroupInfo> out
2084                    = new ArrayList<PermissionGroupInfo>(N);
2085            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2086                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2087            }
2088            return out;
2089        }
2090    }
2091
2092    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2093            int userId) {
2094        if (!sUserManager.exists(userId)) return null;
2095        PackageSetting ps = mSettings.mPackages.get(packageName);
2096        if (ps != null) {
2097            if (ps.pkg == null) {
2098                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2099                        flags, userId);
2100                if (pInfo != null) {
2101                    return pInfo.applicationInfo;
2102                }
2103                return null;
2104            }
2105            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2106                    ps.readUserState(userId), userId);
2107        }
2108        return null;
2109    }
2110
2111    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2112            int userId) {
2113        if (!sUserManager.exists(userId)) return null;
2114        PackageSetting ps = mSettings.mPackages.get(packageName);
2115        if (ps != null) {
2116            PackageParser.Package pkg = ps.pkg;
2117            if (pkg == null) {
2118                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2119                    return null;
2120                }
2121                // Only data remains, so we aren't worried about code paths
2122                pkg = new PackageParser.Package(packageName);
2123                pkg.applicationInfo.packageName = packageName;
2124                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2125                pkg.applicationInfo.privateFlags = ps.pkgPrivateFlags;
2126                pkg.applicationInfo.dataDir =
2127                        getDataPathForPackage(packageName, 0).getPath();
2128                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2129                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2130            }
2131            return generatePackageInfo(pkg, flags, userId);
2132        }
2133        return null;
2134    }
2135
2136    @Override
2137    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2138        if (!sUserManager.exists(userId)) return null;
2139        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2140        // writer
2141        synchronized (mPackages) {
2142            PackageParser.Package p = mPackages.get(packageName);
2143            if (DEBUG_PACKAGE_INFO) Log.v(
2144                    TAG, "getApplicationInfo " + packageName
2145                    + ": " + p);
2146            if (p != null) {
2147                PackageSetting ps = mSettings.mPackages.get(packageName);
2148                if (ps == null) return null;
2149                // Note: isEnabledLP() does not apply here - always return info
2150                return PackageParser.generateApplicationInfo(
2151                        p, flags, ps.readUserState(userId), userId);
2152            }
2153            if ("android".equals(packageName)||"system".equals(packageName)) {
2154                return mAndroidApplication;
2155            }
2156            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2157                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2158            }
2159        }
2160        return null;
2161    }
2162
2163
2164    @Override
2165    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2166        mContext.enforceCallingOrSelfPermission(
2167                android.Manifest.permission.CLEAR_APP_CACHE, null);
2168        // Queue up an async operation since clearing cache may take a little while.
2169        mHandler.post(new Runnable() {
2170            public void run() {
2171                mHandler.removeCallbacks(this);
2172                int retCode = -1;
2173                synchronized (mInstallLock) {
2174                    retCode = mInstaller.freeCache(freeStorageSize);
2175                    if (retCode < 0) {
2176                        Slog.w(TAG, "Couldn't clear application caches");
2177                    }
2178                }
2179                if (observer != null) {
2180                    try {
2181                        observer.onRemoveCompleted(null, (retCode >= 0));
2182                    } catch (RemoteException e) {
2183                        Slog.w(TAG, "RemoveException when invoking call back");
2184                    }
2185                }
2186            }
2187        });
2188    }
2189
2190    @Override
2191    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2192        mContext.enforceCallingOrSelfPermission(
2193                android.Manifest.permission.CLEAR_APP_CACHE, null);
2194        // Queue up an async operation since clearing cache may take a little while.
2195        mHandler.post(new Runnable() {
2196            public void run() {
2197                mHandler.removeCallbacks(this);
2198                int retCode = -1;
2199                synchronized (mInstallLock) {
2200                    retCode = mInstaller.freeCache(freeStorageSize);
2201                    if (retCode < 0) {
2202                        Slog.w(TAG, "Couldn't clear application caches");
2203                    }
2204                }
2205                if(pi != null) {
2206                    try {
2207                        // Callback via pending intent
2208                        int code = (retCode >= 0) ? 1 : 0;
2209                        pi.sendIntent(null, code, null,
2210                                null, null);
2211                    } catch (SendIntentException e1) {
2212                        Slog.i(TAG, "Failed to send pending intent");
2213                    }
2214                }
2215            }
2216        });
2217    }
2218
2219    void freeStorage(long freeStorageSize) throws IOException {
2220        synchronized (mInstallLock) {
2221            if (mInstaller.freeCache(freeStorageSize) < 0) {
2222                throw new IOException("Failed to free enough space");
2223            }
2224        }
2225    }
2226
2227    @Override
2228    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2229        if (!sUserManager.exists(userId)) return null;
2230        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2231        synchronized (mPackages) {
2232            PackageParser.Activity a = mActivities.mActivities.get(component);
2233
2234            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2235            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2236                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2237                if (ps == null) return null;
2238                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2239                        userId);
2240            }
2241            if (mResolveComponentName.equals(component)) {
2242                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2243                        new PackageUserState(), userId);
2244            }
2245        }
2246        return null;
2247    }
2248
2249    @Override
2250    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2251            String resolvedType) {
2252        synchronized (mPackages) {
2253            PackageParser.Activity a = mActivities.mActivities.get(component);
2254            if (a == null) {
2255                return false;
2256            }
2257            for (int i=0; i<a.intents.size(); i++) {
2258                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2259                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2260                    return true;
2261                }
2262            }
2263            return false;
2264        }
2265    }
2266
2267    @Override
2268    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2269        if (!sUserManager.exists(userId)) return null;
2270        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2271        synchronized (mPackages) {
2272            PackageParser.Activity a = mReceivers.mActivities.get(component);
2273            if (DEBUG_PACKAGE_INFO) Log.v(
2274                TAG, "getReceiverInfo " + component + ": " + a);
2275            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2276                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2277                if (ps == null) return null;
2278                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2279                        userId);
2280            }
2281        }
2282        return null;
2283    }
2284
2285    @Override
2286    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2287        if (!sUserManager.exists(userId)) return null;
2288        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2289        synchronized (mPackages) {
2290            PackageParser.Service s = mServices.mServices.get(component);
2291            if (DEBUG_PACKAGE_INFO) Log.v(
2292                TAG, "getServiceInfo " + component + ": " + s);
2293            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2294                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2295                if (ps == null) return null;
2296                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2297                        userId);
2298            }
2299        }
2300        return null;
2301    }
2302
2303    @Override
2304    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2305        if (!sUserManager.exists(userId)) return null;
2306        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2307        synchronized (mPackages) {
2308            PackageParser.Provider p = mProviders.mProviders.get(component);
2309            if (DEBUG_PACKAGE_INFO) Log.v(
2310                TAG, "getProviderInfo " + component + ": " + p);
2311            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2312                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2313                if (ps == null) return null;
2314                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2315                        userId);
2316            }
2317        }
2318        return null;
2319    }
2320
2321    @Override
2322    public String[] getSystemSharedLibraryNames() {
2323        Set<String> libSet;
2324        synchronized (mPackages) {
2325            libSet = mSharedLibraries.keySet();
2326            int size = libSet.size();
2327            if (size > 0) {
2328                String[] libs = new String[size];
2329                libSet.toArray(libs);
2330                return libs;
2331            }
2332        }
2333        return null;
2334    }
2335
2336    /**
2337     * @hide
2338     */
2339    PackageParser.Package findSharedNonSystemLibrary(String libName) {
2340        synchronized (mPackages) {
2341            PackageManagerService.SharedLibraryEntry lib = mSharedLibraries.get(libName);
2342            if (lib != null && lib.apk != null) {
2343                return mPackages.get(lib.apk);
2344            }
2345        }
2346        return null;
2347    }
2348
2349    @Override
2350    public FeatureInfo[] getSystemAvailableFeatures() {
2351        Collection<FeatureInfo> featSet;
2352        synchronized (mPackages) {
2353            featSet = mAvailableFeatures.values();
2354            int size = featSet.size();
2355            if (size > 0) {
2356                FeatureInfo[] features = new FeatureInfo[size+1];
2357                featSet.toArray(features);
2358                FeatureInfo fi = new FeatureInfo();
2359                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2360                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2361                features[size] = fi;
2362                return features;
2363            }
2364        }
2365        return null;
2366    }
2367
2368    @Override
2369    public boolean hasSystemFeature(String name) {
2370        synchronized (mPackages) {
2371            return mAvailableFeatures.containsKey(name);
2372        }
2373    }
2374
2375    private void checkValidCaller(int uid, int userId) {
2376        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2377            return;
2378
2379        throw new SecurityException("Caller uid=" + uid
2380                + " is not privileged to communicate with user=" + userId);
2381    }
2382
2383    @Override
2384    public int checkPermission(String permName, String pkgName) {
2385        synchronized (mPackages) {
2386            PackageParser.Package p = mPackages.get(pkgName);
2387            if (p != null && p.mExtras != null) {
2388                PackageSetting ps = (PackageSetting)p.mExtras;
2389                if (ps.sharedUser != null) {
2390                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2391                        return PackageManager.PERMISSION_GRANTED;
2392                    }
2393                } else if (ps.grantedPermissions.contains(permName)) {
2394                    return PackageManager.PERMISSION_GRANTED;
2395                }
2396            }
2397        }
2398        return PackageManager.PERMISSION_DENIED;
2399    }
2400
2401    @Override
2402    public int checkUidPermission(String permName, int uid) {
2403        synchronized (mPackages) {
2404            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2405            if (obj != null) {
2406                GrantedPermissions gp = (GrantedPermissions)obj;
2407                if (gp.grantedPermissions.contains(permName)) {
2408                    return PackageManager.PERMISSION_GRANTED;
2409                }
2410            } else {
2411                ArraySet<String> perms = mSystemPermissions.get(uid);
2412                if (perms != null && perms.contains(permName)) {
2413                    return PackageManager.PERMISSION_GRANTED;
2414                }
2415            }
2416        }
2417        return PackageManager.PERMISSION_DENIED;
2418    }
2419
2420    /**
2421     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2422     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2423     * @param checkShell TODO(yamasani):
2424     * @param message the message to log on security exception
2425     */
2426    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2427            boolean checkShell, String message) {
2428        if (userId < 0) {
2429            throw new IllegalArgumentException("Invalid userId " + userId);
2430        }
2431        if (checkShell) {
2432            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2433        }
2434        if (userId == UserHandle.getUserId(callingUid)) return;
2435        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2436            if (requireFullPermission) {
2437                mContext.enforceCallingOrSelfPermission(
2438                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2439            } else {
2440                try {
2441                    mContext.enforceCallingOrSelfPermission(
2442                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2443                } catch (SecurityException se) {
2444                    mContext.enforceCallingOrSelfPermission(
2445                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2446                }
2447            }
2448        }
2449    }
2450
2451    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2452        if (callingUid == Process.SHELL_UID) {
2453            if (userHandle >= 0
2454                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2455                throw new SecurityException("Shell does not have permission to access user "
2456                        + userHandle);
2457            } else if (userHandle < 0) {
2458                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2459                        + Debug.getCallers(3));
2460            }
2461        }
2462    }
2463
2464    private BasePermission findPermissionTreeLP(String permName) {
2465        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2466            if (permName.startsWith(bp.name) &&
2467                    permName.length() > bp.name.length() &&
2468                    permName.charAt(bp.name.length()) == '.') {
2469                return bp;
2470            }
2471        }
2472        return null;
2473    }
2474
2475    private BasePermission checkPermissionTreeLP(String permName) {
2476        if (permName != null) {
2477            BasePermission bp = findPermissionTreeLP(permName);
2478            if (bp != null) {
2479                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2480                    return bp;
2481                }
2482                throw new SecurityException("Calling uid "
2483                        + Binder.getCallingUid()
2484                        + " is not allowed to add to permission tree "
2485                        + bp.name + " owned by uid " + bp.uid);
2486            }
2487        }
2488        throw new SecurityException("No permission tree found for " + permName);
2489    }
2490
2491    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2492        if (s1 == null) {
2493            return s2 == null;
2494        }
2495        if (s2 == null) {
2496            return false;
2497        }
2498        if (s1.getClass() != s2.getClass()) {
2499            return false;
2500        }
2501        return s1.equals(s2);
2502    }
2503
2504    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2505        if (pi1.icon != pi2.icon) return false;
2506        if (pi1.logo != pi2.logo) return false;
2507        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2508        if (!compareStrings(pi1.name, pi2.name)) return false;
2509        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2510        // We'll take care of setting this one.
2511        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2512        // These are not currently stored in settings.
2513        //if (!compareStrings(pi1.group, pi2.group)) return false;
2514        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2515        //if (pi1.labelRes != pi2.labelRes) return false;
2516        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2517        return true;
2518    }
2519
2520    int permissionInfoFootprint(PermissionInfo info) {
2521        int size = info.name.length();
2522        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2523        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2524        return size;
2525    }
2526
2527    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2528        int size = 0;
2529        for (BasePermission perm : mSettings.mPermissions.values()) {
2530            if (perm.uid == tree.uid) {
2531                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2532            }
2533        }
2534        return size;
2535    }
2536
2537    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2538        // We calculate the max size of permissions defined by this uid and throw
2539        // if that plus the size of 'info' would exceed our stated maximum.
2540        if (tree.uid != Process.SYSTEM_UID) {
2541            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2542            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2543                throw new SecurityException("Permission tree size cap exceeded");
2544            }
2545        }
2546    }
2547
2548    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2549        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2550            throw new SecurityException("Label must be specified in permission");
2551        }
2552        BasePermission tree = checkPermissionTreeLP(info.name);
2553        BasePermission bp = mSettings.mPermissions.get(info.name);
2554        boolean added = bp == null;
2555        boolean changed = true;
2556        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2557        if (added) {
2558            enforcePermissionCapLocked(info, tree);
2559            bp = new BasePermission(info.name, tree.sourcePackage,
2560                    BasePermission.TYPE_DYNAMIC);
2561        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2562            throw new SecurityException(
2563                    "Not allowed to modify non-dynamic permission "
2564                    + info.name);
2565        } else {
2566            if (bp.protectionLevel == fixedLevel
2567                    && bp.perm.owner.equals(tree.perm.owner)
2568                    && bp.uid == tree.uid
2569                    && comparePermissionInfos(bp.perm.info, info)) {
2570                changed = false;
2571            }
2572        }
2573        bp.protectionLevel = fixedLevel;
2574        info = new PermissionInfo(info);
2575        info.protectionLevel = fixedLevel;
2576        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2577        bp.perm.info.packageName = tree.perm.info.packageName;
2578        bp.uid = tree.uid;
2579        if (added) {
2580            mSettings.mPermissions.put(info.name, bp);
2581        }
2582        if (changed) {
2583            if (!async) {
2584                mSettings.writeLPr();
2585            } else {
2586                scheduleWriteSettingsLocked();
2587            }
2588        }
2589        return added;
2590    }
2591
2592    @Override
2593    public boolean addPermission(PermissionInfo info) {
2594        synchronized (mPackages) {
2595            return addPermissionLocked(info, false);
2596        }
2597    }
2598
2599    @Override
2600    public boolean addPermissionAsync(PermissionInfo info) {
2601        synchronized (mPackages) {
2602            return addPermissionLocked(info, true);
2603        }
2604    }
2605
2606    @Override
2607    public void removePermission(String name) {
2608        synchronized (mPackages) {
2609            checkPermissionTreeLP(name);
2610            BasePermission bp = mSettings.mPermissions.get(name);
2611            if (bp != null) {
2612                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2613                    throw new SecurityException(
2614                            "Not allowed to modify non-dynamic permission "
2615                            + name);
2616                }
2617                mSettings.mPermissions.remove(name);
2618                mSettings.writeLPr();
2619            }
2620        }
2621    }
2622
2623    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2624        int index = pkg.requestedPermissions.indexOf(bp.name);
2625        if (index == -1) {
2626            throw new SecurityException("Package " + pkg.packageName
2627                    + " has not requested permission " + bp.name);
2628        }
2629        boolean isNormal =
2630                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2631                        == PermissionInfo.PROTECTION_NORMAL);
2632        boolean isDangerous =
2633                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2634                        == PermissionInfo.PROTECTION_DANGEROUS);
2635        boolean isDevelopment =
2636                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2637
2638        if (!isNormal && !isDangerous && !isDevelopment) {
2639            throw new SecurityException("Permission " + bp.name
2640                    + " is not a changeable permission type");
2641        }
2642
2643        if (isNormal || isDangerous) {
2644            if (pkg.requestedPermissionsRequired.get(index)) {
2645                throw new SecurityException("Can't change " + bp.name
2646                        + ". It is required by the application");
2647            }
2648        }
2649    }
2650
2651    @Override
2652    public void grantPermission(String packageName, String permissionName) {
2653        mContext.enforceCallingOrSelfPermission(
2654                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2655        synchronized (mPackages) {
2656            final PackageParser.Package pkg = mPackages.get(packageName);
2657            if (pkg == null) {
2658                throw new IllegalArgumentException("Unknown package: " + packageName);
2659            }
2660            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2661            if (bp == null) {
2662                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2663            }
2664
2665            checkGrantRevokePermissions(pkg, bp);
2666
2667            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2668            if (ps == null) {
2669                return;
2670            }
2671            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2672            if (gp.grantedPermissions.add(permissionName)) {
2673                if (ps.haveGids) {
2674                    gp.gids = appendInts(gp.gids, bp.gids);
2675                }
2676                mSettings.writeLPr();
2677            }
2678        }
2679    }
2680
2681    @Override
2682    public void revokePermission(String packageName, String permissionName) {
2683        int changedAppId = -1;
2684
2685        synchronized (mPackages) {
2686            final PackageParser.Package pkg = mPackages.get(packageName);
2687            if (pkg == null) {
2688                throw new IllegalArgumentException("Unknown package: " + packageName);
2689            }
2690            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2691                mContext.enforceCallingOrSelfPermission(
2692                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2693            }
2694            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2695            if (bp == null) {
2696                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2697            }
2698
2699            checkGrantRevokePermissions(pkg, bp);
2700
2701            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2702            if (ps == null) {
2703                return;
2704            }
2705            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2706            if (gp.grantedPermissions.remove(permissionName)) {
2707                gp.grantedPermissions.remove(permissionName);
2708                if (ps.haveGids) {
2709                    gp.gids = removeInts(gp.gids, bp.gids);
2710                }
2711                mSettings.writeLPr();
2712                changedAppId = ps.appId;
2713            }
2714        }
2715
2716        if (changedAppId >= 0) {
2717            // We changed the perm on someone, kill its processes.
2718            IActivityManager am = ActivityManagerNative.getDefault();
2719            if (am != null) {
2720                final int callingUserId = UserHandle.getCallingUserId();
2721                final long ident = Binder.clearCallingIdentity();
2722                try {
2723                    //XXX we should only revoke for the calling user's app permissions,
2724                    // but for now we impact all users.
2725                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2726                    //        "revoke " + permissionName);
2727                    int[] users = sUserManager.getUserIds();
2728                    for (int user : users) {
2729                        am.killUid(UserHandle.getUid(user, changedAppId),
2730                                "revoke " + permissionName);
2731                    }
2732                } catch (RemoteException e) {
2733                } finally {
2734                    Binder.restoreCallingIdentity(ident);
2735                }
2736            }
2737        }
2738    }
2739
2740    @Override
2741    public boolean isProtectedBroadcast(String actionName) {
2742        synchronized (mPackages) {
2743            return mProtectedBroadcasts.contains(actionName);
2744        }
2745    }
2746
2747    @Override
2748    public int checkSignatures(String pkg1, String pkg2) {
2749        synchronized (mPackages) {
2750            final PackageParser.Package p1 = mPackages.get(pkg1);
2751            final PackageParser.Package p2 = mPackages.get(pkg2);
2752            if (p1 == null || p1.mExtras == null
2753                    || p2 == null || p2.mExtras == null) {
2754                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2755            }
2756            return compareSignatures(p1.mSignatures, p2.mSignatures);
2757        }
2758    }
2759
2760    @Override
2761    public int checkUidSignatures(int uid1, int uid2) {
2762        // Map to base uids.
2763        uid1 = UserHandle.getAppId(uid1);
2764        uid2 = UserHandle.getAppId(uid2);
2765        // reader
2766        synchronized (mPackages) {
2767            Signature[] s1;
2768            Signature[] s2;
2769            Object obj = mSettings.getUserIdLPr(uid1);
2770            if (obj != null) {
2771                if (obj instanceof SharedUserSetting) {
2772                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2773                } else if (obj instanceof PackageSetting) {
2774                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2775                } else {
2776                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2777                }
2778            } else {
2779                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2780            }
2781            obj = mSettings.getUserIdLPr(uid2);
2782            if (obj != null) {
2783                if (obj instanceof SharedUserSetting) {
2784                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2785                } else if (obj instanceof PackageSetting) {
2786                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2787                } else {
2788                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2789                }
2790            } else {
2791                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2792            }
2793            return compareSignatures(s1, s2);
2794        }
2795    }
2796
2797    /**
2798     * Compares two sets of signatures. Returns:
2799     * <br />
2800     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2801     * <br />
2802     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2803     * <br />
2804     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2805     * <br />
2806     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2807     * <br />
2808     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2809     */
2810    static int compareSignatures(Signature[] s1, Signature[] s2) {
2811        if (s1 == null) {
2812            return s2 == null
2813                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2814                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2815        }
2816
2817        if (s2 == null) {
2818            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2819        }
2820
2821        if (s1.length != s2.length) {
2822            return PackageManager.SIGNATURE_NO_MATCH;
2823        }
2824
2825        // Since both signature sets are of size 1, we can compare without HashSets.
2826        if (s1.length == 1) {
2827            return s1[0].equals(s2[0]) ?
2828                    PackageManager.SIGNATURE_MATCH :
2829                    PackageManager.SIGNATURE_NO_MATCH;
2830        }
2831
2832        ArraySet<Signature> set1 = new ArraySet<Signature>();
2833        for (Signature sig : s1) {
2834            set1.add(sig);
2835        }
2836        ArraySet<Signature> set2 = new ArraySet<Signature>();
2837        for (Signature sig : s2) {
2838            set2.add(sig);
2839        }
2840        // Make sure s2 contains all signatures in s1.
2841        if (set1.equals(set2)) {
2842            return PackageManager.SIGNATURE_MATCH;
2843        }
2844        return PackageManager.SIGNATURE_NO_MATCH;
2845    }
2846
2847    /**
2848     * If the database version for this type of package (internal storage or
2849     * external storage) is less than the version where package signatures
2850     * were updated, return true.
2851     */
2852    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2853        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2854                DatabaseVersion.SIGNATURE_END_ENTITY))
2855                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2856                        DatabaseVersion.SIGNATURE_END_ENTITY));
2857    }
2858
2859    /**
2860     * Used for backward compatibility to make sure any packages with
2861     * certificate chains get upgraded to the new style. {@code existingSigs}
2862     * will be in the old format (since they were stored on disk from before the
2863     * system upgrade) and {@code scannedSigs} will be in the newer format.
2864     */
2865    private int compareSignaturesCompat(PackageSignatures existingSigs,
2866            PackageParser.Package scannedPkg) {
2867        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2868            return PackageManager.SIGNATURE_NO_MATCH;
2869        }
2870
2871        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2872        for (Signature sig : existingSigs.mSignatures) {
2873            existingSet.add(sig);
2874        }
2875        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2876        for (Signature sig : scannedPkg.mSignatures) {
2877            try {
2878                Signature[] chainSignatures = sig.getChainSignatures();
2879                for (Signature chainSig : chainSignatures) {
2880                    scannedCompatSet.add(chainSig);
2881                }
2882            } catch (CertificateEncodingException e) {
2883                scannedCompatSet.add(sig);
2884            }
2885        }
2886        /*
2887         * Make sure the expanded scanned set contains all signatures in the
2888         * existing one.
2889         */
2890        if (scannedCompatSet.equals(existingSet)) {
2891            // Migrate the old signatures to the new scheme.
2892            existingSigs.assignSignatures(scannedPkg.mSignatures);
2893            // The new KeySets will be re-added later in the scanning process.
2894            synchronized (mPackages) {
2895                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2896            }
2897            return PackageManager.SIGNATURE_MATCH;
2898        }
2899        return PackageManager.SIGNATURE_NO_MATCH;
2900    }
2901
2902    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2903        if (isExternal(scannedPkg)) {
2904            return mSettings.isExternalDatabaseVersionOlderThan(
2905                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2906        } else {
2907            return mSettings.isInternalDatabaseVersionOlderThan(
2908                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2909        }
2910    }
2911
2912    private int compareSignaturesRecover(PackageSignatures existingSigs,
2913            PackageParser.Package scannedPkg) {
2914        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2915            return PackageManager.SIGNATURE_NO_MATCH;
2916        }
2917
2918        String msg = null;
2919        try {
2920            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2921                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2922                        + scannedPkg.packageName);
2923                return PackageManager.SIGNATURE_MATCH;
2924            }
2925        } catch (CertificateException e) {
2926            msg = e.getMessage();
2927        }
2928
2929        logCriticalInfo(Log.INFO,
2930                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2931        return PackageManager.SIGNATURE_NO_MATCH;
2932    }
2933
2934    @Override
2935    public String[] getPackagesForUid(int uid) {
2936        uid = UserHandle.getAppId(uid);
2937        // reader
2938        synchronized (mPackages) {
2939            Object obj = mSettings.getUserIdLPr(uid);
2940            if (obj instanceof SharedUserSetting) {
2941                final SharedUserSetting sus = (SharedUserSetting) obj;
2942                final int N = sus.packages.size();
2943                final String[] res = new String[N];
2944                final Iterator<PackageSetting> it = sus.packages.iterator();
2945                int i = 0;
2946                while (it.hasNext()) {
2947                    res[i++] = it.next().name;
2948                }
2949                return res;
2950            } else if (obj instanceof PackageSetting) {
2951                final PackageSetting ps = (PackageSetting) obj;
2952                return new String[] { ps.name };
2953            }
2954        }
2955        return null;
2956    }
2957
2958    @Override
2959    public String getNameForUid(int uid) {
2960        // reader
2961        synchronized (mPackages) {
2962            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2963            if (obj instanceof SharedUserSetting) {
2964                final SharedUserSetting sus = (SharedUserSetting) obj;
2965                return sus.name + ":" + sus.userId;
2966            } else if (obj instanceof PackageSetting) {
2967                final PackageSetting ps = (PackageSetting) obj;
2968                return ps.name;
2969            }
2970        }
2971        return null;
2972    }
2973
2974    @Override
2975    public int getUidForSharedUser(String sharedUserName) {
2976        if(sharedUserName == null) {
2977            return -1;
2978        }
2979        // reader
2980        synchronized (mPackages) {
2981            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, 0, false);
2982            if (suid == null) {
2983                return -1;
2984            }
2985            return suid.userId;
2986        }
2987    }
2988
2989    @Override
2990    public int getFlagsForUid(int uid) {
2991        synchronized (mPackages) {
2992            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2993            if (obj instanceof SharedUserSetting) {
2994                final SharedUserSetting sus = (SharedUserSetting) obj;
2995                return sus.pkgFlags;
2996            } else if (obj instanceof PackageSetting) {
2997                final PackageSetting ps = (PackageSetting) obj;
2998                return ps.pkgFlags;
2999            }
3000        }
3001        return 0;
3002    }
3003
3004    @Override
3005    public int getPrivateFlagsForUid(int uid) {
3006        synchronized (mPackages) {
3007            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
3008            if (obj instanceof SharedUserSetting) {
3009                final SharedUserSetting sus = (SharedUserSetting) obj;
3010                return sus.pkgPrivateFlags;
3011            } else if (obj instanceof PackageSetting) {
3012                final PackageSetting ps = (PackageSetting) obj;
3013                return ps.pkgPrivateFlags;
3014            }
3015        }
3016        return 0;
3017    }
3018
3019    @Override
3020    public boolean isUidPrivileged(int uid) {
3021        uid = UserHandle.getAppId(uid);
3022        // reader
3023        synchronized (mPackages) {
3024            Object obj = mSettings.getUserIdLPr(uid);
3025            if (obj instanceof SharedUserSetting) {
3026                final SharedUserSetting sus = (SharedUserSetting) obj;
3027                final Iterator<PackageSetting> it = sus.packages.iterator();
3028                while (it.hasNext()) {
3029                    if (it.next().isPrivileged()) {
3030                        return true;
3031                    }
3032                }
3033            } else if (obj instanceof PackageSetting) {
3034                final PackageSetting ps = (PackageSetting) obj;
3035                return ps.isPrivileged();
3036            }
3037        }
3038        return false;
3039    }
3040
3041    @Override
3042    public String[] getAppOpPermissionPackages(String permissionName) {
3043        synchronized (mPackages) {
3044            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3045            if (pkgs == null) {
3046                return null;
3047            }
3048            return pkgs.toArray(new String[pkgs.size()]);
3049        }
3050    }
3051
3052    @Override
3053    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3054            int flags, int userId) {
3055        if (!sUserManager.exists(userId)) return null;
3056        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3057        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3058        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3059    }
3060
3061    @Override
3062    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3063            IntentFilter filter, int match, ComponentName activity) {
3064        final int userId = UserHandle.getCallingUserId();
3065        if (DEBUG_PREFERRED) {
3066            Log.v(TAG, "setLastChosenActivity intent=" + intent
3067                + " resolvedType=" + resolvedType
3068                + " flags=" + flags
3069                + " filter=" + filter
3070                + " match=" + match
3071                + " activity=" + activity);
3072            filter.dump(new PrintStreamPrinter(System.out), "    ");
3073        }
3074        intent.setComponent(null);
3075        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3076        // Find any earlier preferred or last chosen entries and nuke them
3077        findPreferredActivity(intent, resolvedType,
3078                flags, query, 0, false, true, false, userId);
3079        // Add the new activity as the last chosen for this filter
3080        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3081                "Setting last chosen");
3082    }
3083
3084    @Override
3085    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3086        final int userId = UserHandle.getCallingUserId();
3087        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3088        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3089        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3090                false, false, false, userId);
3091    }
3092
3093    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3094            int flags, List<ResolveInfo> query, int userId) {
3095        if (query != null) {
3096            final int N = query.size();
3097            if (N == 1) {
3098                return query.get(0);
3099            } else if (N > 1) {
3100                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3101                // If there is more than one activity with the same priority,
3102                // then let the user decide between them.
3103                ResolveInfo r0 = query.get(0);
3104                ResolveInfo r1 = query.get(1);
3105                if (DEBUG_INTENT_MATCHING || debug) {
3106                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3107                            + r1.activityInfo.name + "=" + r1.priority);
3108                }
3109                // If the first activity has a higher priority, or a different
3110                // default, then it is always desireable to pick it.
3111                if (r0.priority != r1.priority
3112                        || r0.preferredOrder != r1.preferredOrder
3113                        || r0.isDefault != r1.isDefault) {
3114                    return query.get(0);
3115                }
3116                // If we have saved a preference for a preferred activity for
3117                // this Intent, use that.
3118                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3119                        flags, query, r0.priority, true, false, debug, userId);
3120                if (ri != null) {
3121                    return ri;
3122                }
3123                if (userId != 0) {
3124                    ri = new ResolveInfo(mResolveInfo);
3125                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3126                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3127                            ri.activityInfo.applicationInfo);
3128                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3129                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3130                    return ri;
3131                }
3132                return mResolveInfo;
3133            }
3134        }
3135        return null;
3136    }
3137
3138    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3139            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3140        final int N = query.size();
3141        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3142                .get(userId);
3143        // Get the list of persistent preferred activities that handle the intent
3144        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3145        List<PersistentPreferredActivity> pprefs = ppir != null
3146                ? ppir.queryIntent(intent, resolvedType,
3147                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3148                : null;
3149        if (pprefs != null && pprefs.size() > 0) {
3150            final int M = pprefs.size();
3151            for (int i=0; i<M; i++) {
3152                final PersistentPreferredActivity ppa = pprefs.get(i);
3153                if (DEBUG_PREFERRED || debug) {
3154                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3155                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3156                            + "\n  component=" + ppa.mComponent);
3157                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3158                }
3159                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3160                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3161                if (DEBUG_PREFERRED || debug) {
3162                    Slog.v(TAG, "Found persistent preferred activity:");
3163                    if (ai != null) {
3164                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3165                    } else {
3166                        Slog.v(TAG, "  null");
3167                    }
3168                }
3169                if (ai == null) {
3170                    // This previously registered persistent preferred activity
3171                    // component is no longer known. Ignore it and do NOT remove it.
3172                    continue;
3173                }
3174                for (int j=0; j<N; j++) {
3175                    final ResolveInfo ri = query.get(j);
3176                    if (!ri.activityInfo.applicationInfo.packageName
3177                            .equals(ai.applicationInfo.packageName)) {
3178                        continue;
3179                    }
3180                    if (!ri.activityInfo.name.equals(ai.name)) {
3181                        continue;
3182                    }
3183                    //  Found a persistent preference that can handle the intent.
3184                    if (DEBUG_PREFERRED || debug) {
3185                        Slog.v(TAG, "Returning persistent preferred activity: " +
3186                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3187                    }
3188                    return ri;
3189                }
3190            }
3191        }
3192        return null;
3193    }
3194
3195    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3196            List<ResolveInfo> query, int priority, boolean always,
3197            boolean removeMatches, boolean debug, int userId) {
3198        if (!sUserManager.exists(userId)) return null;
3199        // writer
3200        synchronized (mPackages) {
3201            if (intent.getSelector() != null) {
3202                intent = intent.getSelector();
3203            }
3204            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3205
3206            // Try to find a matching persistent preferred activity.
3207            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3208                    debug, userId);
3209
3210            // If a persistent preferred activity matched, use it.
3211            if (pri != null) {
3212                return pri;
3213            }
3214
3215            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3216            // Get the list of preferred activities that handle the intent
3217            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3218            List<PreferredActivity> prefs = pir != null
3219                    ? pir.queryIntent(intent, resolvedType,
3220                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3221                    : null;
3222            if (prefs != null && prefs.size() > 0) {
3223                boolean changed = false;
3224                try {
3225                    // First figure out how good the original match set is.
3226                    // We will only allow preferred activities that came
3227                    // from the same match quality.
3228                    int match = 0;
3229
3230                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3231
3232                    final int N = query.size();
3233                    for (int j=0; j<N; j++) {
3234                        final ResolveInfo ri = query.get(j);
3235                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3236                                + ": 0x" + Integer.toHexString(match));
3237                        if (ri.match > match) {
3238                            match = ri.match;
3239                        }
3240                    }
3241
3242                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3243                            + Integer.toHexString(match));
3244
3245                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3246                    final int M = prefs.size();
3247                    for (int i=0; i<M; i++) {
3248                        final PreferredActivity pa = prefs.get(i);
3249                        if (DEBUG_PREFERRED || debug) {
3250                            Slog.v(TAG, "Checking PreferredActivity ds="
3251                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3252                                    + "\n  component=" + pa.mPref.mComponent);
3253                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3254                        }
3255                        if (pa.mPref.mMatch != match) {
3256                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3257                                    + Integer.toHexString(pa.mPref.mMatch));
3258                            continue;
3259                        }
3260                        // If it's not an "always" type preferred activity and that's what we're
3261                        // looking for, skip it.
3262                        if (always && !pa.mPref.mAlways) {
3263                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3264                            continue;
3265                        }
3266                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3267                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3268                        if (DEBUG_PREFERRED || debug) {
3269                            Slog.v(TAG, "Found preferred activity:");
3270                            if (ai != null) {
3271                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3272                            } else {
3273                                Slog.v(TAG, "  null");
3274                            }
3275                        }
3276                        if (ai == null) {
3277                            // This previously registered preferred activity
3278                            // component is no longer known.  Most likely an update
3279                            // to the app was installed and in the new version this
3280                            // component no longer exists.  Clean it up by removing
3281                            // it from the preferred activities list, and skip it.
3282                            Slog.w(TAG, "Removing dangling preferred activity: "
3283                                    + pa.mPref.mComponent);
3284                            pir.removeFilter(pa);
3285                            changed = true;
3286                            continue;
3287                        }
3288                        for (int j=0; j<N; j++) {
3289                            final ResolveInfo ri = query.get(j);
3290                            if (!ri.activityInfo.applicationInfo.packageName
3291                                    .equals(ai.applicationInfo.packageName)) {
3292                                continue;
3293                            }
3294                            if (!ri.activityInfo.name.equals(ai.name)) {
3295                                continue;
3296                            }
3297
3298                            if (removeMatches) {
3299                                pir.removeFilter(pa);
3300                                changed = true;
3301                                if (DEBUG_PREFERRED) {
3302                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3303                                }
3304                                break;
3305                            }
3306
3307                            // Okay we found a previously set preferred or last chosen app.
3308                            // If the result set is different from when this
3309                            // was created, we need to clear it and re-ask the
3310                            // user their preference, if we're looking for an "always" type entry.
3311                            if (always && !pa.mPref.sameSet(query)) {
3312                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3313                                        + intent + " type " + resolvedType);
3314                                if (DEBUG_PREFERRED) {
3315                                    Slog.v(TAG, "Removing preferred activity since set changed "
3316                                            + pa.mPref.mComponent);
3317                                }
3318                                pir.removeFilter(pa);
3319                                // Re-add the filter as a "last chosen" entry (!always)
3320                                PreferredActivity lastChosen = new PreferredActivity(
3321                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3322                                pir.addFilter(lastChosen);
3323                                changed = true;
3324                                return null;
3325                            }
3326
3327                            // Yay! Either the set matched or we're looking for the last chosen
3328                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3329                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3330                            return ri;
3331                        }
3332                    }
3333                } finally {
3334                    if (changed) {
3335                        if (DEBUG_PREFERRED) {
3336                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3337                        }
3338                        scheduleWritePackageRestrictionsLocked(userId);
3339                    }
3340                }
3341            }
3342        }
3343        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3344        return null;
3345    }
3346
3347    /*
3348     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3349     */
3350    @Override
3351    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3352            int targetUserId) {
3353        mContext.enforceCallingOrSelfPermission(
3354                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3355        List<CrossProfileIntentFilter> matches =
3356                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3357        if (matches != null) {
3358            int size = matches.size();
3359            for (int i = 0; i < size; i++) {
3360                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3361            }
3362        }
3363        return false;
3364    }
3365
3366    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3367            String resolvedType, int userId) {
3368        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3369        if (resolver != null) {
3370            return resolver.queryIntent(intent, resolvedType, false, userId);
3371        }
3372        return null;
3373    }
3374
3375    @Override
3376    public List<ResolveInfo> queryIntentActivities(Intent intent,
3377            String resolvedType, int flags, int userId) {
3378        if (!sUserManager.exists(userId)) return Collections.emptyList();
3379        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3380        ComponentName comp = intent.getComponent();
3381        if (comp == null) {
3382            if (intent.getSelector() != null) {
3383                intent = intent.getSelector();
3384                comp = intent.getComponent();
3385            }
3386        }
3387
3388        if (comp != null) {
3389            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3390            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3391            if (ai != null) {
3392                final ResolveInfo ri = new ResolveInfo();
3393                ri.activityInfo = ai;
3394                list.add(ri);
3395            }
3396            return list;
3397        }
3398
3399        // reader
3400        synchronized (mPackages) {
3401            final String pkgName = intent.getPackage();
3402            if (pkgName == null) {
3403                List<CrossProfileIntentFilter> matchingFilters =
3404                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3405                // Check for results that need to skip the current profile.
3406                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3407                        resolvedType, flags, userId);
3408                if (resolveInfo != null) {
3409                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3410                    result.add(resolveInfo);
3411                    return filterIfNotPrimaryUser(result, userId);
3412                }
3413                // Check for cross profile results.
3414                resolveInfo = queryCrossProfileIntents(
3415                        matchingFilters, intent, resolvedType, flags, userId);
3416
3417                // Check for results in the current profile.
3418                List<ResolveInfo> result = mActivities.queryIntent(
3419                        intent, resolvedType, flags, userId);
3420                if (resolveInfo != null) {
3421                    result.add(resolveInfo);
3422                    Collections.sort(result, mResolvePrioritySorter);
3423                }
3424                return filterIfNotPrimaryUser(result, userId);
3425            }
3426            final PackageParser.Package pkg = mPackages.get(pkgName);
3427            if (pkg != null) {
3428                return filterIfNotPrimaryUser(
3429                        mActivities.queryIntentForPackage(
3430                                intent, resolvedType, flags, pkg.activities, userId),
3431                        userId);
3432            }
3433            return new ArrayList<ResolveInfo>();
3434        }
3435    }
3436
3437    /**
3438     * Filter out activities with primaryUserOnly flag set, when current user is not the owner.
3439     *
3440     * @return filtered list
3441     */
3442    private List<ResolveInfo> filterIfNotPrimaryUser(List<ResolveInfo> resolveInfos, int userId) {
3443        if (userId == UserHandle.USER_OWNER) {
3444            return resolveInfos;
3445        }
3446        for (int i = resolveInfos.size() - 1; i >= 0; i--) {
3447            ResolveInfo info = resolveInfos.get(i);
3448            if ((info.activityInfo.flags & ActivityInfo.FLAG_PRIMARY_USER_ONLY) != 0) {
3449                resolveInfos.remove(i);
3450            }
3451        }
3452        return resolveInfos;
3453    }
3454
3455
3456    private ResolveInfo querySkipCurrentProfileIntents(
3457            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3458            int flags, int sourceUserId) {
3459        if (matchingFilters != null) {
3460            int size = matchingFilters.size();
3461            for (int i = 0; i < size; i ++) {
3462                CrossProfileIntentFilter filter = matchingFilters.get(i);
3463                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3464                    // Checking if there are activities in the target user that can handle the
3465                    // intent.
3466                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3467                            flags, sourceUserId);
3468                    if (resolveInfo != null) {
3469                        return resolveInfo;
3470                    }
3471                }
3472            }
3473        }
3474        return null;
3475    }
3476
3477    // Return matching ResolveInfo if any for skip current profile intent filters.
3478    private ResolveInfo queryCrossProfileIntents(
3479            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3480            int flags, int sourceUserId) {
3481        if (matchingFilters != null) {
3482            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3483            // match the same intent. For performance reasons, it is better not to
3484            // run queryIntent twice for the same userId
3485            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3486            int size = matchingFilters.size();
3487            for (int i = 0; i < size; i++) {
3488                CrossProfileIntentFilter filter = matchingFilters.get(i);
3489                int targetUserId = filter.getTargetUserId();
3490                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3491                        && !alreadyTriedUserIds.get(targetUserId)) {
3492                    // Checking if there are activities in the target user that can handle the
3493                    // intent.
3494                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3495                            flags, sourceUserId);
3496                    if (resolveInfo != null) return resolveInfo;
3497                    alreadyTriedUserIds.put(targetUserId, true);
3498                }
3499            }
3500        }
3501        return null;
3502    }
3503
3504    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3505            String resolvedType, int flags, int sourceUserId) {
3506        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3507                resolvedType, flags, filter.getTargetUserId());
3508        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3509            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3510        }
3511        return null;
3512    }
3513
3514    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3515            int sourceUserId, int targetUserId) {
3516        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3517        String className;
3518        if (targetUserId == UserHandle.USER_OWNER) {
3519            className = FORWARD_INTENT_TO_USER_OWNER;
3520        } else {
3521            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3522        }
3523        ComponentName forwardingActivityComponentName = new ComponentName(
3524                mAndroidApplication.packageName, className);
3525        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3526                sourceUserId);
3527        if (targetUserId == UserHandle.USER_OWNER) {
3528            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3529            forwardingResolveInfo.noResourceId = true;
3530        }
3531        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3532        forwardingResolveInfo.priority = 0;
3533        forwardingResolveInfo.preferredOrder = 0;
3534        forwardingResolveInfo.match = 0;
3535        forwardingResolveInfo.isDefault = true;
3536        forwardingResolveInfo.filter = filter;
3537        forwardingResolveInfo.targetUserId = targetUserId;
3538        return forwardingResolveInfo;
3539    }
3540
3541    @Override
3542    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3543            Intent[] specifics, String[] specificTypes, Intent intent,
3544            String resolvedType, int flags, int userId) {
3545        if (!sUserManager.exists(userId)) return Collections.emptyList();
3546        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3547                false, "query intent activity options");
3548        final String resultsAction = intent.getAction();
3549
3550        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3551                | PackageManager.GET_RESOLVED_FILTER, userId);
3552
3553        if (DEBUG_INTENT_MATCHING) {
3554            Log.v(TAG, "Query " + intent + ": " + results);
3555        }
3556
3557        int specificsPos = 0;
3558        int N;
3559
3560        // todo: note that the algorithm used here is O(N^2).  This
3561        // isn't a problem in our current environment, but if we start running
3562        // into situations where we have more than 5 or 10 matches then this
3563        // should probably be changed to something smarter...
3564
3565        // First we go through and resolve each of the specific items
3566        // that were supplied, taking care of removing any corresponding
3567        // duplicate items in the generic resolve list.
3568        if (specifics != null) {
3569            for (int i=0; i<specifics.length; i++) {
3570                final Intent sintent = specifics[i];
3571                if (sintent == null) {
3572                    continue;
3573                }
3574
3575                if (DEBUG_INTENT_MATCHING) {
3576                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3577                }
3578
3579                String action = sintent.getAction();
3580                if (resultsAction != null && resultsAction.equals(action)) {
3581                    // If this action was explicitly requested, then don't
3582                    // remove things that have it.
3583                    action = null;
3584                }
3585
3586                ResolveInfo ri = null;
3587                ActivityInfo ai = null;
3588
3589                ComponentName comp = sintent.getComponent();
3590                if (comp == null) {
3591                    ri = resolveIntent(
3592                        sintent,
3593                        specificTypes != null ? specificTypes[i] : null,
3594                            flags, userId);
3595                    if (ri == null) {
3596                        continue;
3597                    }
3598                    if (ri == mResolveInfo) {
3599                        // ACK!  Must do something better with this.
3600                    }
3601                    ai = ri.activityInfo;
3602                    comp = new ComponentName(ai.applicationInfo.packageName,
3603                            ai.name);
3604                } else {
3605                    ai = getActivityInfo(comp, flags, userId);
3606                    if (ai == null) {
3607                        continue;
3608                    }
3609                }
3610
3611                // Look for any generic query activities that are duplicates
3612                // of this specific one, and remove them from the results.
3613                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3614                N = results.size();
3615                int j;
3616                for (j=specificsPos; j<N; j++) {
3617                    ResolveInfo sri = results.get(j);
3618                    if ((sri.activityInfo.name.equals(comp.getClassName())
3619                            && sri.activityInfo.applicationInfo.packageName.equals(
3620                                    comp.getPackageName()))
3621                        || (action != null && sri.filter.matchAction(action))) {
3622                        results.remove(j);
3623                        if (DEBUG_INTENT_MATCHING) Log.v(
3624                            TAG, "Removing duplicate item from " + j
3625                            + " due to specific " + specificsPos);
3626                        if (ri == null) {
3627                            ri = sri;
3628                        }
3629                        j--;
3630                        N--;
3631                    }
3632                }
3633
3634                // Add this specific item to its proper place.
3635                if (ri == null) {
3636                    ri = new ResolveInfo();
3637                    ri.activityInfo = ai;
3638                }
3639                results.add(specificsPos, ri);
3640                ri.specificIndex = i;
3641                specificsPos++;
3642            }
3643        }
3644
3645        // Now we go through the remaining generic results and remove any
3646        // duplicate actions that are found here.
3647        N = results.size();
3648        for (int i=specificsPos; i<N-1; i++) {
3649            final ResolveInfo rii = results.get(i);
3650            if (rii.filter == null) {
3651                continue;
3652            }
3653
3654            // Iterate over all of the actions of this result's intent
3655            // filter...  typically this should be just one.
3656            final Iterator<String> it = rii.filter.actionsIterator();
3657            if (it == null) {
3658                continue;
3659            }
3660            while (it.hasNext()) {
3661                final String action = it.next();
3662                if (resultsAction != null && resultsAction.equals(action)) {
3663                    // If this action was explicitly requested, then don't
3664                    // remove things that have it.
3665                    continue;
3666                }
3667                for (int j=i+1; j<N; j++) {
3668                    final ResolveInfo rij = results.get(j);
3669                    if (rij.filter != null && rij.filter.hasAction(action)) {
3670                        results.remove(j);
3671                        if (DEBUG_INTENT_MATCHING) Log.v(
3672                            TAG, "Removing duplicate item from " + j
3673                            + " due to action " + action + " at " + i);
3674                        j--;
3675                        N--;
3676                    }
3677                }
3678            }
3679
3680            // If the caller didn't request filter information, drop it now
3681            // so we don't have to marshall/unmarshall it.
3682            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3683                rii.filter = null;
3684            }
3685        }
3686
3687        // Filter out the caller activity if so requested.
3688        if (caller != null) {
3689            N = results.size();
3690            for (int i=0; i<N; i++) {
3691                ActivityInfo ainfo = results.get(i).activityInfo;
3692                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3693                        && caller.getClassName().equals(ainfo.name)) {
3694                    results.remove(i);
3695                    break;
3696                }
3697            }
3698        }
3699
3700        // If the caller didn't request filter information,
3701        // drop them now so we don't have to
3702        // marshall/unmarshall it.
3703        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3704            N = results.size();
3705            for (int i=0; i<N; i++) {
3706                results.get(i).filter = null;
3707            }
3708        }
3709
3710        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3711        return results;
3712    }
3713
3714    @Override
3715    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3716            int userId) {
3717        if (!sUserManager.exists(userId)) return Collections.emptyList();
3718        ComponentName comp = intent.getComponent();
3719        if (comp == null) {
3720            if (intent.getSelector() != null) {
3721                intent = intent.getSelector();
3722                comp = intent.getComponent();
3723            }
3724        }
3725        if (comp != null) {
3726            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3727            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3728            if (ai != null) {
3729                ResolveInfo ri = new ResolveInfo();
3730                ri.activityInfo = ai;
3731                list.add(ri);
3732            }
3733            return list;
3734        }
3735
3736        // reader
3737        synchronized (mPackages) {
3738            String pkgName = intent.getPackage();
3739            if (pkgName == null) {
3740                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3741            }
3742            final PackageParser.Package pkg = mPackages.get(pkgName);
3743            if (pkg != null) {
3744                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3745                        userId);
3746            }
3747            return null;
3748        }
3749    }
3750
3751    @Override
3752    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3753        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3754        if (!sUserManager.exists(userId)) return null;
3755        if (query != null) {
3756            if (query.size() >= 1) {
3757                // If there is more than one service with the same priority,
3758                // just arbitrarily pick the first one.
3759                return query.get(0);
3760            }
3761        }
3762        return null;
3763    }
3764
3765    @Override
3766    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3767            int userId) {
3768        if (!sUserManager.exists(userId)) return Collections.emptyList();
3769        ComponentName comp = intent.getComponent();
3770        if (comp == null) {
3771            if (intent.getSelector() != null) {
3772                intent = intent.getSelector();
3773                comp = intent.getComponent();
3774            }
3775        }
3776        if (comp != null) {
3777            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3778            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3779            if (si != null) {
3780                final ResolveInfo ri = new ResolveInfo();
3781                ri.serviceInfo = si;
3782                list.add(ri);
3783            }
3784            return list;
3785        }
3786
3787        // reader
3788        synchronized (mPackages) {
3789            String pkgName = intent.getPackage();
3790            if (pkgName == null) {
3791                return mServices.queryIntent(intent, resolvedType, flags, userId);
3792            }
3793            final PackageParser.Package pkg = mPackages.get(pkgName);
3794            if (pkg != null) {
3795                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3796                        userId);
3797            }
3798            return null;
3799        }
3800    }
3801
3802    @Override
3803    public List<ResolveInfo> queryIntentContentProviders(
3804            Intent intent, String resolvedType, int flags, int userId) {
3805        if (!sUserManager.exists(userId)) return Collections.emptyList();
3806        ComponentName comp = intent.getComponent();
3807        if (comp == null) {
3808            if (intent.getSelector() != null) {
3809                intent = intent.getSelector();
3810                comp = intent.getComponent();
3811            }
3812        }
3813        if (comp != null) {
3814            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3815            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3816            if (pi != null) {
3817                final ResolveInfo ri = new ResolveInfo();
3818                ri.providerInfo = pi;
3819                list.add(ri);
3820            }
3821            return list;
3822        }
3823
3824        // reader
3825        synchronized (mPackages) {
3826            String pkgName = intent.getPackage();
3827            if (pkgName == null) {
3828                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3829            }
3830            final PackageParser.Package pkg = mPackages.get(pkgName);
3831            if (pkg != null) {
3832                return mProviders.queryIntentForPackage(
3833                        intent, resolvedType, flags, pkg.providers, userId);
3834            }
3835            return null;
3836        }
3837    }
3838
3839    @Override
3840    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3841        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3842
3843        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3844
3845        // writer
3846        synchronized (mPackages) {
3847            ArrayList<PackageInfo> list;
3848            if (listUninstalled) {
3849                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3850                for (PackageSetting ps : mSettings.mPackages.values()) {
3851                    PackageInfo pi;
3852                    if (ps.pkg != null) {
3853                        pi = generatePackageInfo(ps.pkg, flags, userId);
3854                    } else {
3855                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3856                    }
3857                    if (pi != null) {
3858                        list.add(pi);
3859                    }
3860                }
3861            } else {
3862                list = new ArrayList<PackageInfo>(mPackages.size());
3863                for (PackageParser.Package p : mPackages.values()) {
3864                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3865                    if (pi != null) {
3866                        list.add(pi);
3867                    }
3868                }
3869            }
3870
3871            return new ParceledListSlice<PackageInfo>(list);
3872        }
3873    }
3874
3875    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3876            String[] permissions, boolean[] tmp, int flags, int userId) {
3877        int numMatch = 0;
3878        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3879        for (int i=0; i<permissions.length; i++) {
3880            if (gp.grantedPermissions.contains(permissions[i])) {
3881                tmp[i] = true;
3882                numMatch++;
3883            } else {
3884                tmp[i] = false;
3885            }
3886        }
3887        if (numMatch == 0) {
3888            return;
3889        }
3890        PackageInfo pi;
3891        if (ps.pkg != null) {
3892            pi = generatePackageInfo(ps.pkg, flags, userId);
3893        } else {
3894            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3895        }
3896        // The above might return null in cases of uninstalled apps or install-state
3897        // skew across users/profiles.
3898        if (pi != null) {
3899            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3900                if (numMatch == permissions.length) {
3901                    pi.requestedPermissions = permissions;
3902                } else {
3903                    pi.requestedPermissions = new String[numMatch];
3904                    numMatch = 0;
3905                    for (int i=0; i<permissions.length; i++) {
3906                        if (tmp[i]) {
3907                            pi.requestedPermissions[numMatch] = permissions[i];
3908                            numMatch++;
3909                        }
3910                    }
3911                }
3912            }
3913            list.add(pi);
3914        }
3915    }
3916
3917    @Override
3918    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3919            String[] permissions, int flags, int userId) {
3920        if (!sUserManager.exists(userId)) return null;
3921        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3922
3923        // writer
3924        synchronized (mPackages) {
3925            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3926            boolean[] tmpBools = new boolean[permissions.length];
3927            if (listUninstalled) {
3928                for (PackageSetting ps : mSettings.mPackages.values()) {
3929                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3930                }
3931            } else {
3932                for (PackageParser.Package pkg : mPackages.values()) {
3933                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3934                    if (ps != null) {
3935                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3936                                userId);
3937                    }
3938                }
3939            }
3940
3941            return new ParceledListSlice<PackageInfo>(list);
3942        }
3943    }
3944
3945    @Override
3946    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3947        if (!sUserManager.exists(userId)) return null;
3948        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3949
3950        // writer
3951        synchronized (mPackages) {
3952            ArrayList<ApplicationInfo> list;
3953            if (listUninstalled) {
3954                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3955                for (PackageSetting ps : mSettings.mPackages.values()) {
3956                    ApplicationInfo ai;
3957                    if (ps.pkg != null) {
3958                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3959                                ps.readUserState(userId), userId);
3960                    } else {
3961                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3962                    }
3963                    if (ai != null) {
3964                        list.add(ai);
3965                    }
3966                }
3967            } else {
3968                list = new ArrayList<ApplicationInfo>(mPackages.size());
3969                for (PackageParser.Package p : mPackages.values()) {
3970                    if (p.mExtras != null) {
3971                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3972                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3973                        if (ai != null) {
3974                            list.add(ai);
3975                        }
3976                    }
3977                }
3978            }
3979
3980            return new ParceledListSlice<ApplicationInfo>(list);
3981        }
3982    }
3983
3984    public List<ApplicationInfo> getPersistentApplications(int flags) {
3985        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3986
3987        // reader
3988        synchronized (mPackages) {
3989            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3990            final int userId = UserHandle.getCallingUserId();
3991            while (i.hasNext()) {
3992                final PackageParser.Package p = i.next();
3993                if (p.applicationInfo != null
3994                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3995                        && (!mSafeMode || isSystemApp(p))) {
3996                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3997                    if (ps != null) {
3998                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3999                                ps.readUserState(userId), userId);
4000                        if (ai != null) {
4001                            finalList.add(ai);
4002                        }
4003                    }
4004                }
4005            }
4006        }
4007
4008        return finalList;
4009    }
4010
4011    @Override
4012    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
4013        if (!sUserManager.exists(userId)) return null;
4014        // reader
4015        synchronized (mPackages) {
4016            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
4017            PackageSetting ps = provider != null
4018                    ? mSettings.mPackages.get(provider.owner.packageName)
4019                    : null;
4020            return ps != null
4021                    && mSettings.isEnabledLPr(provider.info, flags, userId)
4022                    && (!mSafeMode || (provider.info.applicationInfo.flags
4023                            &ApplicationInfo.FLAG_SYSTEM) != 0)
4024                    ? PackageParser.generateProviderInfo(provider, flags,
4025                            ps.readUserState(userId), userId)
4026                    : null;
4027        }
4028    }
4029
4030    /**
4031     * @deprecated
4032     */
4033    @Deprecated
4034    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
4035        // reader
4036        synchronized (mPackages) {
4037            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
4038                    .entrySet().iterator();
4039            final int userId = UserHandle.getCallingUserId();
4040            while (i.hasNext()) {
4041                Map.Entry<String, PackageParser.Provider> entry = i.next();
4042                PackageParser.Provider p = entry.getValue();
4043                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4044
4045                if (ps != null && p.syncable
4046                        && (!mSafeMode || (p.info.applicationInfo.flags
4047                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
4048                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
4049                            ps.readUserState(userId), userId);
4050                    if (info != null) {
4051                        outNames.add(entry.getKey());
4052                        outInfo.add(info);
4053                    }
4054                }
4055            }
4056        }
4057    }
4058
4059    @Override
4060    public List<ProviderInfo> queryContentProviders(String processName,
4061            int uid, int flags) {
4062        ArrayList<ProviderInfo> finalList = null;
4063        // reader
4064        synchronized (mPackages) {
4065            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4066            final int userId = processName != null ?
4067                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4068            while (i.hasNext()) {
4069                final PackageParser.Provider p = i.next();
4070                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4071                if (ps != null && p.info.authority != null
4072                        && (processName == null
4073                                || (p.info.processName.equals(processName)
4074                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4075                        && mSettings.isEnabledLPr(p.info, flags, userId)
4076                        && (!mSafeMode
4077                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4078                    if (finalList == null) {
4079                        finalList = new ArrayList<ProviderInfo>(3);
4080                    }
4081                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4082                            ps.readUserState(userId), userId);
4083                    if (info != null) {
4084                        finalList.add(info);
4085                    }
4086                }
4087            }
4088        }
4089
4090        if (finalList != null) {
4091            Collections.sort(finalList, mProviderInitOrderSorter);
4092        }
4093
4094        return finalList;
4095    }
4096
4097    @Override
4098    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4099            int flags) {
4100        // reader
4101        synchronized (mPackages) {
4102            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4103            return PackageParser.generateInstrumentationInfo(i, flags);
4104        }
4105    }
4106
4107    @Override
4108    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4109            int flags) {
4110        ArrayList<InstrumentationInfo> finalList =
4111            new ArrayList<InstrumentationInfo>();
4112
4113        // reader
4114        synchronized (mPackages) {
4115            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4116            while (i.hasNext()) {
4117                final PackageParser.Instrumentation p = i.next();
4118                if (targetPackage == null
4119                        || targetPackage.equals(p.info.targetPackage)) {
4120                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4121                            flags);
4122                    if (ii != null) {
4123                        finalList.add(ii);
4124                    }
4125                }
4126            }
4127        }
4128
4129        return finalList;
4130    }
4131
4132    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4133        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4134        if (overlays == null) {
4135            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4136            return;
4137        }
4138        for (PackageParser.Package opkg : overlays.values()) {
4139            // Not much to do if idmap fails: we already logged the error
4140            // and we certainly don't want to abort installation of pkg simply
4141            // because an overlay didn't fit properly. For these reasons,
4142            // ignore the return value of createIdmapForPackagePairLI.
4143            createIdmapForPackagePairLI(pkg, opkg);
4144        }
4145    }
4146
4147    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4148            PackageParser.Package opkg) {
4149        if (!opkg.mTrustedOverlay) {
4150            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4151                    opkg.baseCodePath + ": overlay not trusted");
4152            return false;
4153        }
4154        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4155        if (overlaySet == null) {
4156            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4157                    opkg.baseCodePath + " but target package has no known overlays");
4158            return false;
4159        }
4160        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4161        // TODO: generate idmap for split APKs
4162        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4163            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4164                    + opkg.baseCodePath);
4165            return false;
4166        }
4167        PackageParser.Package[] overlayArray =
4168            overlaySet.values().toArray(new PackageParser.Package[0]);
4169        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4170            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4171                return p1.mOverlayPriority - p2.mOverlayPriority;
4172            }
4173        };
4174        Arrays.sort(overlayArray, cmp);
4175
4176        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4177        int i = 0;
4178        for (PackageParser.Package p : overlayArray) {
4179            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4180        }
4181        return true;
4182    }
4183
4184    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4185        final File[] files = dir.listFiles();
4186        if (ArrayUtils.isEmpty(files)) {
4187            Log.d(TAG, "No files in app dir " + dir);
4188            return;
4189        }
4190
4191        if (DEBUG_PACKAGE_SCANNING) {
4192            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4193                    + " flags=0x" + Integer.toHexString(parseFlags));
4194        }
4195
4196        for (File file : files) {
4197            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4198                    && !PackageInstallerService.isStageName(file.getName());
4199            if (!isPackage) {
4200                // Ignore entries which are not packages
4201                continue;
4202            }
4203            try {
4204                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4205                        scanFlags, currentTime, null);
4206            } catch (PackageManagerException e) {
4207                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4208
4209                // Delete invalid userdata apps
4210                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4211                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4212                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4213                    if (file.isDirectory()) {
4214                        FileUtils.deleteContents(file);
4215                    }
4216                    file.delete();
4217                }
4218            }
4219        }
4220    }
4221
4222    private static File getSettingsProblemFile() {
4223        File dataDir = Environment.getDataDirectory();
4224        File systemDir = new File(dataDir, "system");
4225        File fname = new File(systemDir, "uiderrors.txt");
4226        return fname;
4227    }
4228
4229    static void reportSettingsProblem(int priority, String msg) {
4230        logCriticalInfo(priority, msg);
4231    }
4232
4233    static void logCriticalInfo(int priority, String msg) {
4234        Slog.println(priority, TAG, msg);
4235        EventLogTags.writePmCriticalInfo(msg);
4236        try {
4237            File fname = getSettingsProblemFile();
4238            FileOutputStream out = new FileOutputStream(fname, true);
4239            PrintWriter pw = new FastPrintWriter(out);
4240            SimpleDateFormat formatter = new SimpleDateFormat();
4241            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4242            pw.println(dateString + ": " + msg);
4243            pw.close();
4244            FileUtils.setPermissions(
4245                    fname.toString(),
4246                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4247                    -1, -1);
4248        } catch (java.io.IOException e) {
4249        }
4250    }
4251
4252    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4253            PackageParser.Package pkg, File srcFile, int parseFlags)
4254            throws PackageManagerException {
4255        if (ps != null
4256                && ps.codePath.equals(srcFile)
4257                && ps.timeStamp == srcFile.lastModified()
4258                && !isCompatSignatureUpdateNeeded(pkg)
4259                && !isRecoverSignatureUpdateNeeded(pkg)) {
4260            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4261            if (ps.signatures.mSignatures != null
4262                    && ps.signatures.mSignatures.length != 0
4263                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4264                // Optimization: reuse the existing cached certificates
4265                // if the package appears to be unchanged.
4266                pkg.mSignatures = ps.signatures.mSignatures;
4267                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4268                synchronized (mPackages) {
4269                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4270                }
4271                return;
4272            }
4273
4274            Slog.w(TAG, "PackageSetting for " + ps.name
4275                    + " is missing signatures.  Collecting certs again to recover them.");
4276        } else {
4277            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4278        }
4279
4280        try {
4281            pp.collectCertificates(pkg, parseFlags);
4282            pp.collectManifestDigest(pkg);
4283        } catch (PackageParserException e) {
4284            throw PackageManagerException.from(e);
4285        }
4286    }
4287
4288    /*
4289     *  Scan a package and return the newly parsed package.
4290     *  Returns null in case of errors and the error code is stored in mLastScanError
4291     */
4292    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4293            long currentTime, UserHandle user) throws PackageManagerException {
4294        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4295        parseFlags |= mDefParseFlags;
4296        PackageParser pp = new PackageParser();
4297        pp.setSeparateProcesses(mSeparateProcesses);
4298        pp.setOnlyCoreApps(mOnlyCore);
4299        pp.setDisplayMetrics(mMetrics);
4300
4301        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4302            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4303        }
4304
4305        final PackageParser.Package pkg;
4306        try {
4307            pkg = pp.parsePackage(scanFile, parseFlags);
4308        } catch (PackageParserException e) {
4309            throw PackageManagerException.from(e);
4310        }
4311
4312        PackageSetting ps = null;
4313        PackageSetting updatedPkg;
4314        // reader
4315        synchronized (mPackages) {
4316            // Look to see if we already know about this package.
4317            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4318            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4319                // This package has been renamed to its original name.  Let's
4320                // use that.
4321                ps = mSettings.peekPackageLPr(oldName);
4322            }
4323            // If there was no original package, see one for the real package name.
4324            if (ps == null) {
4325                ps = mSettings.peekPackageLPr(pkg.packageName);
4326            }
4327            // Check to see if this package could be hiding/updating a system
4328            // package.  Must look for it either under the original or real
4329            // package name depending on our state.
4330            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4331            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4332        }
4333        boolean updatedPkgBetter = false;
4334        // First check if this is a system package that may involve an update
4335        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4336            // If new package is not located in "/system/priv-app" (e.g. due to an OTA),
4337            // it needs to drop FLAG_PRIVILEGED.
4338            if (locationIsPrivileged(scanFile)) {
4339                updatedPkg.pkgPrivateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4340            } else {
4341                updatedPkg.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
4342            }
4343
4344            if (ps != null && !ps.codePath.equals(scanFile)) {
4345                // The path has changed from what was last scanned...  check the
4346                // version of the new path against what we have stored to determine
4347                // what to do.
4348                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4349                if (pkg.mVersionCode <= ps.versionCode) {
4350                    // The system package has been updated and the code path does not match
4351                    // Ignore entry. Skip it.
4352                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4353                            + " ignored: updated version " + ps.versionCode
4354                            + " better than this " + pkg.mVersionCode);
4355                    if (!updatedPkg.codePath.equals(scanFile)) {
4356                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4357                                + ps.name + " changing from " + updatedPkg.codePathString
4358                                + " to " + scanFile);
4359                        updatedPkg.codePath = scanFile;
4360                        updatedPkg.codePathString = scanFile.toString();
4361                        updatedPkg.resourcePath = scanFile;
4362                        updatedPkg.resourcePathString = scanFile.toString();
4363                    }
4364                    updatedPkg.pkg = pkg;
4365                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4366                } else {
4367                    // The current app on the system partition is better than
4368                    // what we have updated to on the data partition; switch
4369                    // back to the system partition version.
4370                    // At this point, its safely assumed that package installation for
4371                    // apps in system partition will go through. If not there won't be a working
4372                    // version of the app
4373                    // writer
4374                    synchronized (mPackages) {
4375                        // Just remove the loaded entries from package lists.
4376                        mPackages.remove(ps.name);
4377                    }
4378
4379                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4380                            + " reverting from " + ps.codePathString
4381                            + ": new version " + pkg.mVersionCode
4382                            + " better than installed " + ps.versionCode);
4383
4384                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4385                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4386                            getAppDexInstructionSets(ps));
4387                    synchronized (mInstallLock) {
4388                        args.cleanUpResourcesLI();
4389                    }
4390                    synchronized (mPackages) {
4391                        mSettings.enableSystemPackageLPw(ps.name);
4392                    }
4393                    updatedPkgBetter = true;
4394                }
4395            }
4396        }
4397
4398        if (updatedPkg != null) {
4399            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4400            // initially
4401            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4402
4403            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4404            // flag set initially
4405            if ((updatedPkg.pkgPrivateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0) {
4406                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4407            }
4408        }
4409
4410        // Verify certificates against what was last scanned
4411        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4412
4413        /*
4414         * A new system app appeared, but we already had a non-system one of the
4415         * same name installed earlier.
4416         */
4417        boolean shouldHideSystemApp = false;
4418        if (updatedPkg == null && ps != null
4419                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4420            /*
4421             * Check to make sure the signatures match first. If they don't,
4422             * wipe the installed application and its data.
4423             */
4424            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4425                    != PackageManager.SIGNATURE_MATCH) {
4426                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4427                        + " signatures don't match existing userdata copy; removing");
4428                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4429                ps = null;
4430            } else {
4431                /*
4432                 * If the newly-added system app is an older version than the
4433                 * already installed version, hide it. It will be scanned later
4434                 * and re-added like an update.
4435                 */
4436                if (pkg.mVersionCode <= ps.versionCode) {
4437                    shouldHideSystemApp = true;
4438                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4439                            + " but new version " + pkg.mVersionCode + " better than installed "
4440                            + ps.versionCode + "; hiding system");
4441                } else {
4442                    /*
4443                     * The newly found system app is a newer version that the
4444                     * one previously installed. Simply remove the
4445                     * already-installed application and replace it with our own
4446                     * while keeping the application data.
4447                     */
4448                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4449                            + " reverting from " + ps.codePathString + ": new version "
4450                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4451                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4452                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4453                            getAppDexInstructionSets(ps));
4454                    synchronized (mInstallLock) {
4455                        args.cleanUpResourcesLI();
4456                    }
4457                }
4458            }
4459        }
4460
4461        // The apk is forward locked (not public) if its code and resources
4462        // are kept in different files. (except for app in either system or
4463        // vendor path).
4464        // TODO grab this value from PackageSettings
4465        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4466            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4467                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4468            }
4469        }
4470
4471        // TODO: extend to support forward-locked splits
4472        String resourcePath = null;
4473        String baseResourcePath = null;
4474        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4475            if (ps != null && ps.resourcePathString != null) {
4476                resourcePath = ps.resourcePathString;
4477                baseResourcePath = ps.resourcePathString;
4478            } else {
4479                // Should not happen at all. Just log an error.
4480                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4481            }
4482        } else {
4483            resourcePath = pkg.codePath;
4484            baseResourcePath = pkg.baseCodePath;
4485        }
4486
4487        // Set application objects path explicitly.
4488        pkg.applicationInfo.setCodePath(pkg.codePath);
4489        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4490        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4491        pkg.applicationInfo.setResourcePath(resourcePath);
4492        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4493        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4494
4495        // Note that we invoke the following method only if we are about to unpack an application
4496        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4497                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4498
4499        /*
4500         * If the system app should be overridden by a previously installed
4501         * data, hide the system app now and let the /data/app scan pick it up
4502         * again.
4503         */
4504        if (shouldHideSystemApp) {
4505            synchronized (mPackages) {
4506                /*
4507                 * We have to grant systems permissions before we hide, because
4508                 * grantPermissions will assume the package update is trying to
4509                 * expand its permissions.
4510                 */
4511                grantPermissionsLPw(pkg, true, pkg.packageName);
4512                mSettings.disableSystemPackageLPw(pkg.packageName);
4513            }
4514        }
4515
4516        return scannedPkg;
4517    }
4518
4519    private static String fixProcessName(String defProcessName,
4520            String processName, int uid) {
4521        if (processName == null) {
4522            return defProcessName;
4523        }
4524        return processName;
4525    }
4526
4527    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4528            throws PackageManagerException {
4529        if (pkgSetting.signatures.mSignatures != null) {
4530            // Already existing package. Make sure signatures match
4531            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4532                    == PackageManager.SIGNATURE_MATCH;
4533            if (!match) {
4534                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4535                        == PackageManager.SIGNATURE_MATCH;
4536            }
4537            if (!match) {
4538                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4539                        == PackageManager.SIGNATURE_MATCH;
4540            }
4541            if (!match) {
4542                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4543                        + pkg.packageName + " signatures do not match the "
4544                        + "previously installed version; ignoring!");
4545            }
4546        }
4547
4548        // Check for shared user signatures
4549        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4550            // Already existing package. Make sure signatures match
4551            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4552                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4553            if (!match) {
4554                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4555                        == PackageManager.SIGNATURE_MATCH;
4556            }
4557            if (!match) {
4558                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4559                        == PackageManager.SIGNATURE_MATCH;
4560            }
4561            if (!match) {
4562                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4563                        "Package " + pkg.packageName
4564                        + " has no signatures that match those in shared user "
4565                        + pkgSetting.sharedUser.name + "; ignoring!");
4566            }
4567        }
4568    }
4569
4570    /**
4571     * Enforces that only the system UID or root's UID can call a method exposed
4572     * via Binder.
4573     *
4574     * @param message used as message if SecurityException is thrown
4575     * @throws SecurityException if the caller is not system or root
4576     */
4577    private static final void enforceSystemOrRoot(String message) {
4578        final int uid = Binder.getCallingUid();
4579        if (uid != Process.SYSTEM_UID && uid != 0) {
4580            throw new SecurityException(message);
4581        }
4582    }
4583
4584    @Override
4585    public void performBootDexOpt() {
4586        enforceSystemOrRoot("Only the system can request dexopt be performed");
4587
4588        // Before everything else, see whether we need to fstrim.
4589        try {
4590            IMountService ms = PackageHelper.getMountService();
4591            if (ms != null) {
4592                final boolean isUpgrade = isUpgrade();
4593                boolean doTrim = isUpgrade;
4594                if (doTrim) {
4595                    Slog.w(TAG, "Running disk maintenance immediately due to system update");
4596                } else {
4597                    final long interval = android.provider.Settings.Global.getLong(
4598                            mContext.getContentResolver(),
4599                            android.provider.Settings.Global.FSTRIM_MANDATORY_INTERVAL,
4600                            DEFAULT_MANDATORY_FSTRIM_INTERVAL);
4601                    if (interval > 0) {
4602                        final long timeSinceLast = System.currentTimeMillis() - ms.lastMaintenance();
4603                        if (timeSinceLast > interval) {
4604                            doTrim = true;
4605                            Slog.w(TAG, "No disk maintenance in " + timeSinceLast
4606                                    + "; running immediately");
4607                        }
4608                    }
4609                }
4610                if (doTrim) {
4611                    if (!isFirstBoot()) {
4612                        try {
4613                            ActivityManagerNative.getDefault().showBootMessage(
4614                                    mContext.getResources().getString(
4615                                            R.string.android_upgrading_fstrim), true);
4616                        } catch (RemoteException e) {
4617                        }
4618                    }
4619                    ms.runMaintenance();
4620                }
4621            } else {
4622                Slog.e(TAG, "Mount service unavailable!");
4623            }
4624        } catch (RemoteException e) {
4625            // Can't happen; MountService is local
4626        }
4627
4628        final ArraySet<PackageParser.Package> pkgs;
4629        synchronized (mPackages) {
4630            pkgs = mPackageDexOptimizer.clearDeferredDexOptPackages();
4631        }
4632
4633        if (pkgs != null) {
4634            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4635            // in case the device runs out of space.
4636            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4637            // Give priority to core apps.
4638            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4639                PackageParser.Package pkg = it.next();
4640                if (pkg.coreApp) {
4641                    if (DEBUG_DEXOPT) {
4642                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4643                    }
4644                    sortedPkgs.add(pkg);
4645                    it.remove();
4646                }
4647            }
4648            // Give priority to system apps that listen for pre boot complete.
4649            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4650            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4651            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4652                PackageParser.Package pkg = it.next();
4653                if (pkgNames.contains(pkg.packageName)) {
4654                    if (DEBUG_DEXOPT) {
4655                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4656                    }
4657                    sortedPkgs.add(pkg);
4658                    it.remove();
4659                }
4660            }
4661            // Give priority to system apps.
4662            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4663                PackageParser.Package pkg = it.next();
4664                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4665                    if (DEBUG_DEXOPT) {
4666                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4667                    }
4668                    sortedPkgs.add(pkg);
4669                    it.remove();
4670                }
4671            }
4672            // Give priority to updated system apps.
4673            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4674                PackageParser.Package pkg = it.next();
4675                if (isUpdatedSystemApp(pkg)) {
4676                    if (DEBUG_DEXOPT) {
4677                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4678                    }
4679                    sortedPkgs.add(pkg);
4680                    it.remove();
4681                }
4682            }
4683            // Give priority to apps that listen for boot complete.
4684            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4685            pkgNames = getPackageNamesForIntent(intent);
4686            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4687                PackageParser.Package pkg = it.next();
4688                if (pkgNames.contains(pkg.packageName)) {
4689                    if (DEBUG_DEXOPT) {
4690                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4691                    }
4692                    sortedPkgs.add(pkg);
4693                    it.remove();
4694                }
4695            }
4696            // Filter out packages that aren't recently used.
4697            filterRecentlyUsedApps(pkgs);
4698            // Add all remaining apps.
4699            for (PackageParser.Package pkg : pkgs) {
4700                if (DEBUG_DEXOPT) {
4701                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4702                }
4703                sortedPkgs.add(pkg);
4704            }
4705
4706            // If we want to be lazy, filter everything that wasn't recently used.
4707            if (mLazyDexOpt) {
4708                filterRecentlyUsedApps(sortedPkgs);
4709            }
4710
4711            int i = 0;
4712            int total = sortedPkgs.size();
4713            File dataDir = Environment.getDataDirectory();
4714            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4715            if (lowThreshold == 0) {
4716                throw new IllegalStateException("Invalid low memory threshold");
4717            }
4718            for (PackageParser.Package pkg : sortedPkgs) {
4719                long usableSpace = dataDir.getUsableSpace();
4720                if (usableSpace < lowThreshold) {
4721                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4722                    break;
4723                }
4724                performBootDexOpt(pkg, ++i, total);
4725            }
4726        }
4727    }
4728
4729    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4730        // Filter out packages that aren't recently used.
4731        //
4732        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4733        // should do a full dexopt.
4734        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4735            int total = pkgs.size();
4736            int skipped = 0;
4737            long now = System.currentTimeMillis();
4738            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4739                PackageParser.Package pkg = i.next();
4740                long then = pkg.mLastPackageUsageTimeInMills;
4741                if (then + mDexOptLRUThresholdInMills < now) {
4742                    if (DEBUG_DEXOPT) {
4743                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4744                              ((then == 0) ? "never" : new Date(then)));
4745                    }
4746                    i.remove();
4747                    skipped++;
4748                }
4749            }
4750            if (DEBUG_DEXOPT) {
4751                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4752            }
4753        }
4754    }
4755
4756    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4757        List<ResolveInfo> ris = null;
4758        try {
4759            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4760                    intent, null, 0, UserHandle.USER_OWNER);
4761        } catch (RemoteException e) {
4762        }
4763        ArraySet<String> pkgNames = new ArraySet<String>();
4764        if (ris != null) {
4765            for (ResolveInfo ri : ris) {
4766                pkgNames.add(ri.activityInfo.packageName);
4767            }
4768        }
4769        return pkgNames;
4770    }
4771
4772    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4773        if (DEBUG_DEXOPT) {
4774            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4775        }
4776        if (!isFirstBoot()) {
4777            try {
4778                ActivityManagerNative.getDefault().showBootMessage(
4779                        mContext.getResources().getString(R.string.android_upgrading_apk,
4780                                curr, total), true);
4781            } catch (RemoteException e) {
4782            }
4783        }
4784        PackageParser.Package p = pkg;
4785        synchronized (mInstallLock) {
4786            mPackageDexOptimizer.performDexOpt(p, null /* instruction sets */,
4787                    false /* force dex */, false /* defer */, true /* include dependencies */);
4788        }
4789    }
4790
4791    @Override
4792    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4793        return performDexOpt(packageName, instructionSet, false);
4794    }
4795
4796    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4797        if (info.primaryCpuAbi == null) {
4798            return getPreferredInstructionSet();
4799        }
4800
4801        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4802    }
4803
4804    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4805        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4806        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4807        if (!dexopt && !updateUsage) {
4808            // We aren't going to dexopt or update usage, so bail early.
4809            return false;
4810        }
4811        PackageParser.Package p;
4812        final String targetInstructionSet;
4813        synchronized (mPackages) {
4814            p = mPackages.get(packageName);
4815            if (p == null) {
4816                return false;
4817            }
4818            if (updateUsage) {
4819                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4820            }
4821            mPackageUsage.write(false);
4822            if (!dexopt) {
4823                // We aren't going to dexopt, so bail early.
4824                return false;
4825            }
4826
4827            targetInstructionSet = instructionSet != null ? instructionSet :
4828                    getPrimaryInstructionSet(p.applicationInfo);
4829            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4830                return false;
4831            }
4832        }
4833
4834        synchronized (mInstallLock) {
4835            final String[] instructionSets = new String[] { targetInstructionSet };
4836            int result = mPackageDexOptimizer.performDexOpt(p, instructionSets,
4837                    false /* forceDex */, false /* defer */, true /* inclDependencies */);
4838            return result == PackageDexOptimizer.DEX_OPT_PERFORMED;
4839        }
4840    }
4841
4842    public ArraySet<String> getPackagesThatNeedDexOpt() {
4843        ArraySet<String> pkgs = null;
4844        synchronized (mPackages) {
4845            for (PackageParser.Package p : mPackages.values()) {
4846                if (DEBUG_DEXOPT) {
4847                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4848                }
4849                if (!p.mDexOptPerformed.isEmpty()) {
4850                    continue;
4851                }
4852                if (pkgs == null) {
4853                    pkgs = new ArraySet<String>();
4854                }
4855                pkgs.add(p.packageName);
4856            }
4857        }
4858        return pkgs;
4859    }
4860
4861    public void shutdown() {
4862        mPackageUsage.write(true);
4863    }
4864
4865    @Override
4866    public void forceDexOpt(String packageName) {
4867        enforceSystemOrRoot("forceDexOpt");
4868
4869        PackageParser.Package pkg;
4870        synchronized (mPackages) {
4871            pkg = mPackages.get(packageName);
4872            if (pkg == null) {
4873                throw new IllegalArgumentException("Missing package: " + packageName);
4874            }
4875        }
4876
4877        synchronized (mInstallLock) {
4878            final String[] instructionSets = new String[] {
4879                    getPrimaryInstructionSet(pkg.applicationInfo) };
4880            final int res = mPackageDexOptimizer.performDexOpt(pkg, instructionSets,
4881                    true /*forceDex*/, false /* defer */, true /* inclDependencies */);
4882            if (res != PackageDexOptimizer.DEX_OPT_PERFORMED) {
4883                throw new IllegalStateException("Failed to dexopt: " + res);
4884            }
4885        }
4886    }
4887
4888    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4889        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4890            Slog.w(TAG, "Unable to update from " + oldPkg.name
4891                    + " to " + newPkg.packageName
4892                    + ": old package not in system partition");
4893            return false;
4894        } else if (mPackages.get(oldPkg.name) != null) {
4895            Slog.w(TAG, "Unable to update from " + oldPkg.name
4896                    + " to " + newPkg.packageName
4897                    + ": old package still exists");
4898            return false;
4899        }
4900        return true;
4901    }
4902
4903    private File getDataPathForPackage(String packageName, int userId) {
4904        /*
4905         * Until we fully support multiple users, return the directory we
4906         * previously would have. The PackageManagerTests will need to be
4907         * revised when this is changed back..
4908         */
4909        if (userId == 0) {
4910            return new File(mAppDataDir, packageName);
4911        } else {
4912            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4913                + File.separator + packageName);
4914        }
4915    }
4916
4917    private int createDataDirsLI(String packageName, int uid, String seinfo) {
4918        int[] users = sUserManager.getUserIds();
4919        int res = mInstaller.install(packageName, uid, uid, seinfo);
4920        if (res < 0) {
4921            return res;
4922        }
4923        for (int user : users) {
4924            if (user != 0) {
4925                res = mInstaller.createUserData(packageName,
4926                        UserHandle.getUid(user, uid), user, seinfo);
4927                if (res < 0) {
4928                    return res;
4929                }
4930            }
4931        }
4932        return res;
4933    }
4934
4935    private int removeDataDirsLI(String packageName) {
4936        int[] users = sUserManager.getUserIds();
4937        int res = 0;
4938        for (int user : users) {
4939            int resInner = mInstaller.remove(packageName, user);
4940            if (resInner < 0) {
4941                res = resInner;
4942            }
4943        }
4944
4945        return res;
4946    }
4947
4948    private int deleteCodeCacheDirsLI(String packageName) {
4949        int[] users = sUserManager.getUserIds();
4950        int res = 0;
4951        for (int user : users) {
4952            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
4953            if (resInner < 0) {
4954                res = resInner;
4955            }
4956        }
4957        return res;
4958    }
4959
4960    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
4961            PackageParser.Package changingLib) {
4962        if (file.path != null) {
4963            usesLibraryFiles.add(file.path);
4964            return;
4965        }
4966        PackageParser.Package p = mPackages.get(file.apk);
4967        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
4968            // If we are doing this while in the middle of updating a library apk,
4969            // then we need to make sure to use that new apk for determining the
4970            // dependencies here.  (We haven't yet finished committing the new apk
4971            // to the package manager state.)
4972            if (p == null || p.packageName.equals(changingLib.packageName)) {
4973                p = changingLib;
4974            }
4975        }
4976        if (p != null) {
4977            usesLibraryFiles.addAll(p.getAllCodePaths());
4978        }
4979    }
4980
4981    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
4982            PackageParser.Package changingLib) throws PackageManagerException {
4983        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
4984            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
4985            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
4986            for (int i=0; i<N; i++) {
4987                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
4988                if (file == null) {
4989                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
4990                            "Package " + pkg.packageName + " requires unavailable shared library "
4991                            + pkg.usesLibraries.get(i) + "; failing!");
4992                }
4993                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
4994            }
4995            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
4996            for (int i=0; i<N; i++) {
4997                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
4998                if (file == null) {
4999                    Slog.w(TAG, "Package " + pkg.packageName
5000                            + " desires unavailable shared library "
5001                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5002                } else {
5003                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5004                }
5005            }
5006            N = usesLibraryFiles.size();
5007            if (N > 0) {
5008                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5009            } else {
5010                pkg.usesLibraryFiles = null;
5011            }
5012        }
5013    }
5014
5015    private static boolean hasString(List<String> list, List<String> which) {
5016        if (list == null) {
5017            return false;
5018        }
5019        for (int i=list.size()-1; i>=0; i--) {
5020            for (int j=which.size()-1; j>=0; j--) {
5021                if (which.get(j).equals(list.get(i))) {
5022                    return true;
5023                }
5024            }
5025        }
5026        return false;
5027    }
5028
5029    private void updateAllSharedLibrariesLPw() {
5030        for (PackageParser.Package pkg : mPackages.values()) {
5031            try {
5032                updateSharedLibrariesLPw(pkg, null);
5033            } catch (PackageManagerException e) {
5034                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5035            }
5036        }
5037    }
5038
5039    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5040            PackageParser.Package changingPkg) {
5041        ArrayList<PackageParser.Package> res = null;
5042        for (PackageParser.Package pkg : mPackages.values()) {
5043            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5044                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5045                if (res == null) {
5046                    res = new ArrayList<PackageParser.Package>();
5047                }
5048                res.add(pkg);
5049                try {
5050                    updateSharedLibrariesLPw(pkg, changingPkg);
5051                } catch (PackageManagerException e) {
5052                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5053                }
5054            }
5055        }
5056        return res;
5057    }
5058
5059    /**
5060     * Derive the value of the {@code cpuAbiOverride} based on the provided
5061     * value and an optional stored value from the package settings.
5062     */
5063    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5064        String cpuAbiOverride = null;
5065
5066        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5067            cpuAbiOverride = null;
5068        } else if (abiOverride != null) {
5069            cpuAbiOverride = abiOverride;
5070        } else if (settings != null) {
5071            cpuAbiOverride = settings.cpuAbiOverrideString;
5072        }
5073
5074        return cpuAbiOverride;
5075    }
5076
5077    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5078            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5079        boolean success = false;
5080        try {
5081            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5082                    currentTime, user);
5083            success = true;
5084            return res;
5085        } finally {
5086            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5087                removeDataDirsLI(pkg.packageName);
5088            }
5089        }
5090    }
5091
5092    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5093            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5094        final File scanFile = new File(pkg.codePath);
5095        if (pkg.applicationInfo.getCodePath() == null ||
5096                pkg.applicationInfo.getResourcePath() == null) {
5097            // Bail out. The resource and code paths haven't been set.
5098            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5099                    "Code and resource paths haven't been set correctly");
5100        }
5101
5102        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5103            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5104        } else {
5105            // Only allow system apps to be flagged as core apps.
5106            pkg.coreApp = false;
5107        }
5108
5109        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5110            pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
5111        }
5112
5113        if (mCustomResolverComponentName != null &&
5114                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5115            setUpCustomResolverActivity(pkg);
5116        }
5117
5118        if (pkg.packageName.equals("android")) {
5119            synchronized (mPackages) {
5120                if (mAndroidApplication != null) {
5121                    Slog.w(TAG, "*************************************************");
5122                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5123                    Slog.w(TAG, " file=" + scanFile);
5124                    Slog.w(TAG, "*************************************************");
5125                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5126                            "Core android package being redefined.  Skipping.");
5127                }
5128
5129                // Set up information for our fall-back user intent resolution activity.
5130                mPlatformPackage = pkg;
5131                pkg.mVersionCode = mSdkVersion;
5132                mAndroidApplication = pkg.applicationInfo;
5133
5134                if (!mResolverReplaced) {
5135                    mResolveActivity.applicationInfo = mAndroidApplication;
5136                    mResolveActivity.name = ResolverActivity.class.getName();
5137                    mResolveActivity.packageName = mAndroidApplication.packageName;
5138                    mResolveActivity.processName = "system:ui";
5139                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5140                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5141                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5142                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5143                    mResolveActivity.exported = true;
5144                    mResolveActivity.enabled = true;
5145                    mResolveInfo.activityInfo = mResolveActivity;
5146                    mResolveInfo.priority = 0;
5147                    mResolveInfo.preferredOrder = 0;
5148                    mResolveInfo.match = 0;
5149                    mResolveComponentName = new ComponentName(
5150                            mAndroidApplication.packageName, mResolveActivity.name);
5151                }
5152            }
5153        }
5154
5155        if (DEBUG_PACKAGE_SCANNING) {
5156            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5157                Log.d(TAG, "Scanning package " + pkg.packageName);
5158        }
5159
5160        if (mPackages.containsKey(pkg.packageName)
5161                || mSharedLibraries.containsKey(pkg.packageName)) {
5162            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5163                    "Application package " + pkg.packageName
5164                    + " already installed.  Skipping duplicate.");
5165        }
5166
5167        // Initialize package source and resource directories
5168        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5169        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5170
5171        SharedUserSetting suid = null;
5172        PackageSetting pkgSetting = null;
5173
5174        if (!isSystemApp(pkg)) {
5175            // Only system apps can use these features.
5176            pkg.mOriginalPackages = null;
5177            pkg.mRealPackage = null;
5178            pkg.mAdoptPermissions = null;
5179        }
5180
5181        // writer
5182        synchronized (mPackages) {
5183            if (pkg.mSharedUserId != null) {
5184                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, 0, true);
5185                if (suid == null) {
5186                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5187                            "Creating application package " + pkg.packageName
5188                            + " for shared user failed");
5189                }
5190                if (DEBUG_PACKAGE_SCANNING) {
5191                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5192                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5193                                + "): packages=" + suid.packages);
5194                }
5195            }
5196
5197            // Check if we are renaming from an original package name.
5198            PackageSetting origPackage = null;
5199            String realName = null;
5200            if (pkg.mOriginalPackages != null) {
5201                // This package may need to be renamed to a previously
5202                // installed name.  Let's check on that...
5203                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5204                if (pkg.mOriginalPackages.contains(renamed)) {
5205                    // This package had originally been installed as the
5206                    // original name, and we have already taken care of
5207                    // transitioning to the new one.  Just update the new
5208                    // one to continue using the old name.
5209                    realName = pkg.mRealPackage;
5210                    if (!pkg.packageName.equals(renamed)) {
5211                        // Callers into this function may have already taken
5212                        // care of renaming the package; only do it here if
5213                        // it is not already done.
5214                        pkg.setPackageName(renamed);
5215                    }
5216
5217                } else {
5218                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5219                        if ((origPackage = mSettings.peekPackageLPr(
5220                                pkg.mOriginalPackages.get(i))) != null) {
5221                            // We do have the package already installed under its
5222                            // original name...  should we use it?
5223                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5224                                // New package is not compatible with original.
5225                                origPackage = null;
5226                                continue;
5227                            } else if (origPackage.sharedUser != null) {
5228                                // Make sure uid is compatible between packages.
5229                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5230                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5231                                            + " to " + pkg.packageName + ": old uid "
5232                                            + origPackage.sharedUser.name
5233                                            + " differs from " + pkg.mSharedUserId);
5234                                    origPackage = null;
5235                                    continue;
5236                                }
5237                            } else {
5238                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5239                                        + pkg.packageName + " to old name " + origPackage.name);
5240                            }
5241                            break;
5242                        }
5243                    }
5244                }
5245            }
5246
5247            if (mTransferedPackages.contains(pkg.packageName)) {
5248                Slog.w(TAG, "Package " + pkg.packageName
5249                        + " was transferred to another, but its .apk remains");
5250            }
5251
5252            // Just create the setting, don't add it yet. For already existing packages
5253            // the PkgSetting exists already and doesn't have to be created.
5254            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5255                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5256                    pkg.applicationInfo.primaryCpuAbi,
5257                    pkg.applicationInfo.secondaryCpuAbi,
5258                    pkg.applicationInfo.flags, pkg.applicationInfo.privateFlags,
5259                    user, false);
5260            if (pkgSetting == null) {
5261                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5262                        "Creating application package " + pkg.packageName + " failed");
5263            }
5264
5265            if (pkgSetting.origPackage != null) {
5266                // If we are first transitioning from an original package,
5267                // fix up the new package's name now.  We need to do this after
5268                // looking up the package under its new name, so getPackageLP
5269                // can take care of fiddling things correctly.
5270                pkg.setPackageName(origPackage.name);
5271
5272                // File a report about this.
5273                String msg = "New package " + pkgSetting.realName
5274                        + " renamed to replace old package " + pkgSetting.name;
5275                reportSettingsProblem(Log.WARN, msg);
5276
5277                // Make a note of it.
5278                mTransferedPackages.add(origPackage.name);
5279
5280                // No longer need to retain this.
5281                pkgSetting.origPackage = null;
5282            }
5283
5284            if (realName != null) {
5285                // Make a note of it.
5286                mTransferedPackages.add(pkg.packageName);
5287            }
5288
5289            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5290                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5291            }
5292
5293            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5294                // Check all shared libraries and map to their actual file path.
5295                // We only do this here for apps not on a system dir, because those
5296                // are the only ones that can fail an install due to this.  We
5297                // will take care of the system apps by updating all of their
5298                // library paths after the scan is done.
5299                updateSharedLibrariesLPw(pkg, null);
5300            }
5301
5302            if (mFoundPolicyFile) {
5303                SELinuxMMAC.assignSeinfoValue(pkg);
5304            }
5305
5306            pkg.applicationInfo.uid = pkgSetting.appId;
5307            pkg.mExtras = pkgSetting;
5308            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5309                try {
5310                    verifySignaturesLP(pkgSetting, pkg);
5311                    // We just determined the app is signed correctly, so bring
5312                    // over the latest parsed certs.
5313                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5314                } catch (PackageManagerException e) {
5315                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5316                        throw e;
5317                    }
5318                    // The signature has changed, but this package is in the system
5319                    // image...  let's recover!
5320                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5321                    // However...  if this package is part of a shared user, but it
5322                    // doesn't match the signature of the shared user, let's fail.
5323                    // What this means is that you can't change the signatures
5324                    // associated with an overall shared user, which doesn't seem all
5325                    // that unreasonable.
5326                    if (pkgSetting.sharedUser != null) {
5327                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5328                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5329                            throw new PackageManagerException(
5330                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5331                                            "Signature mismatch for shared user : "
5332                                            + pkgSetting.sharedUser);
5333                        }
5334                    }
5335                    // File a report about this.
5336                    String msg = "System package " + pkg.packageName
5337                        + " signature changed; retaining data.";
5338                    reportSettingsProblem(Log.WARN, msg);
5339                }
5340            } else {
5341                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5342                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5343                            + pkg.packageName + " upgrade keys do not match the "
5344                            + "previously installed version");
5345                } else {
5346                    // We just determined the app is signed correctly, so bring
5347                    // over the latest parsed certs.
5348                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5349                }
5350            }
5351            // Verify that this new package doesn't have any content providers
5352            // that conflict with existing packages.  Only do this if the
5353            // package isn't already installed, since we don't want to break
5354            // things that are installed.
5355            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5356                final int N = pkg.providers.size();
5357                int i;
5358                for (i=0; i<N; i++) {
5359                    PackageParser.Provider p = pkg.providers.get(i);
5360                    if (p.info.authority != null) {
5361                        String names[] = p.info.authority.split(";");
5362                        for (int j = 0; j < names.length; j++) {
5363                            if (mProvidersByAuthority.containsKey(names[j])) {
5364                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5365                                final String otherPackageName =
5366                                        ((other != null && other.getComponentName() != null) ?
5367                                                other.getComponentName().getPackageName() : "?");
5368                                throw new PackageManagerException(
5369                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5370                                                "Can't install because provider name " + names[j]
5371                                                + " (in package " + pkg.applicationInfo.packageName
5372                                                + ") is already used by " + otherPackageName);
5373                            }
5374                        }
5375                    }
5376                }
5377            }
5378
5379            if (pkg.mAdoptPermissions != null) {
5380                // This package wants to adopt ownership of permissions from
5381                // another package.
5382                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5383                    final String origName = pkg.mAdoptPermissions.get(i);
5384                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5385                    if (orig != null) {
5386                        if (verifyPackageUpdateLPr(orig, pkg)) {
5387                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5388                                    + pkg.packageName);
5389                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5390                        }
5391                    }
5392                }
5393            }
5394        }
5395
5396        final String pkgName = pkg.packageName;
5397
5398        final long scanFileTime = scanFile.lastModified();
5399        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5400        pkg.applicationInfo.processName = fixProcessName(
5401                pkg.applicationInfo.packageName,
5402                pkg.applicationInfo.processName,
5403                pkg.applicationInfo.uid);
5404
5405        File dataPath;
5406        if (mPlatformPackage == pkg) {
5407            // The system package is special.
5408            dataPath = new File(Environment.getDataDirectory(), "system");
5409
5410            pkg.applicationInfo.dataDir = dataPath.getPath();
5411
5412        } else {
5413            // This is a normal package, need to make its data directory.
5414            dataPath = getDataPathForPackage(pkg.packageName, 0);
5415
5416            boolean uidError = false;
5417            if (dataPath.exists()) {
5418                int currentUid = 0;
5419                try {
5420                    StructStat stat = Os.stat(dataPath.getPath());
5421                    currentUid = stat.st_uid;
5422                } catch (ErrnoException e) {
5423                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5424                }
5425
5426                // If we have mismatched owners for the data path, we have a problem.
5427                if (currentUid != pkg.applicationInfo.uid) {
5428                    boolean recovered = false;
5429                    if (currentUid == 0) {
5430                        // The directory somehow became owned by root.  Wow.
5431                        // This is probably because the system was stopped while
5432                        // installd was in the middle of messing with its libs
5433                        // directory.  Ask installd to fix that.
5434                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5435                                pkg.applicationInfo.uid);
5436                        if (ret >= 0) {
5437                            recovered = true;
5438                            String msg = "Package " + pkg.packageName
5439                                    + " unexpectedly changed to uid 0; recovered to " +
5440                                    + pkg.applicationInfo.uid;
5441                            reportSettingsProblem(Log.WARN, msg);
5442                        }
5443                    }
5444                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5445                            || (scanFlags&SCAN_BOOTING) != 0)) {
5446                        // If this is a system app, we can at least delete its
5447                        // current data so the application will still work.
5448                        int ret = removeDataDirsLI(pkgName);
5449                        if (ret >= 0) {
5450                            // TODO: Kill the processes first
5451                            // Old data gone!
5452                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5453                                    ? "System package " : "Third party package ";
5454                            String msg = prefix + pkg.packageName
5455                                    + " has changed from uid: "
5456                                    + currentUid + " to "
5457                                    + pkg.applicationInfo.uid + "; old data erased";
5458                            reportSettingsProblem(Log.WARN, msg);
5459                            recovered = true;
5460
5461                            // And now re-install the app.
5462                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5463                                                   pkg.applicationInfo.seinfo);
5464                            if (ret == -1) {
5465                                // Ack should not happen!
5466                                msg = prefix + pkg.packageName
5467                                        + " could not have data directory re-created after delete.";
5468                                reportSettingsProblem(Log.WARN, msg);
5469                                throw new PackageManagerException(
5470                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5471                            }
5472                        }
5473                        if (!recovered) {
5474                            mHasSystemUidErrors = true;
5475                        }
5476                    } else if (!recovered) {
5477                        // If we allow this install to proceed, we will be broken.
5478                        // Abort, abort!
5479                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5480                                "scanPackageLI");
5481                    }
5482                    if (!recovered) {
5483                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5484                            + pkg.applicationInfo.uid + "/fs_"
5485                            + currentUid;
5486                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5487                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5488                        String msg = "Package " + pkg.packageName
5489                                + " has mismatched uid: "
5490                                + currentUid + " on disk, "
5491                                + pkg.applicationInfo.uid + " in settings";
5492                        // writer
5493                        synchronized (mPackages) {
5494                            mSettings.mReadMessages.append(msg);
5495                            mSettings.mReadMessages.append('\n');
5496                            uidError = true;
5497                            if (!pkgSetting.uidError) {
5498                                reportSettingsProblem(Log.ERROR, msg);
5499                            }
5500                        }
5501                    }
5502                }
5503                pkg.applicationInfo.dataDir = dataPath.getPath();
5504                if (mShouldRestoreconData) {
5505                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5506                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5507                                pkg.applicationInfo.uid);
5508                }
5509            } else {
5510                if (DEBUG_PACKAGE_SCANNING) {
5511                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5512                        Log.v(TAG, "Want this data dir: " + dataPath);
5513                }
5514                //invoke installer to do the actual installation
5515                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5516                                           pkg.applicationInfo.seinfo);
5517                if (ret < 0) {
5518                    // Error from installer
5519                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5520                            "Unable to create data dirs [errorCode=" + ret + "]");
5521                }
5522
5523                if (dataPath.exists()) {
5524                    pkg.applicationInfo.dataDir = dataPath.getPath();
5525                } else {
5526                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5527                    pkg.applicationInfo.dataDir = null;
5528                }
5529            }
5530
5531            pkgSetting.uidError = uidError;
5532        }
5533
5534        final String path = scanFile.getPath();
5535        final String codePath = pkg.applicationInfo.getCodePath();
5536        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5537        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5538            setBundledAppAbisAndRoots(pkg, pkgSetting);
5539
5540            // If we haven't found any native libraries for the app, check if it has
5541            // renderscript code. We'll need to force the app to 32 bit if it has
5542            // renderscript bitcode.
5543            if (pkg.applicationInfo.primaryCpuAbi == null
5544                    && pkg.applicationInfo.secondaryCpuAbi == null
5545                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5546                NativeLibraryHelper.Handle handle = null;
5547                try {
5548                    handle = NativeLibraryHelper.Handle.create(scanFile);
5549                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5550                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5551                    }
5552                } catch (IOException ioe) {
5553                    Slog.w(TAG, "Error scanning system app : " + ioe);
5554                } finally {
5555                    IoUtils.closeQuietly(handle);
5556                }
5557            }
5558
5559            setNativeLibraryPaths(pkg);
5560        } else {
5561            // TODO: We can probably be smarter about this stuff. For installed apps,
5562            // we can calculate this information at install time once and for all. For
5563            // system apps, we can probably assume that this information doesn't change
5564            // after the first boot scan. As things stand, we do lots of unnecessary work.
5565
5566            // Give ourselves some initial paths; we'll come back for another
5567            // pass once we've determined ABI below.
5568            setNativeLibraryPaths(pkg);
5569
5570            final boolean isAsec = pkg.isForwardLocked() || isExternal(pkg);
5571            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5572            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5573
5574            NativeLibraryHelper.Handle handle = null;
5575            try {
5576                handle = NativeLibraryHelper.Handle.create(scanFile);
5577                // TODO(multiArch): This can be null for apps that didn't go through the
5578                // usual installation process. We can calculate it again, like we
5579                // do during install time.
5580                //
5581                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5582                // unnecessary.
5583                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5584
5585                // Null out the abis so that they can be recalculated.
5586                pkg.applicationInfo.primaryCpuAbi = null;
5587                pkg.applicationInfo.secondaryCpuAbi = null;
5588                if (isMultiArch(pkg.applicationInfo)) {
5589                    // Warn if we've set an abiOverride for multi-lib packages..
5590                    // By definition, we need to copy both 32 and 64 bit libraries for
5591                    // such packages.
5592                    if (pkg.cpuAbiOverride != null
5593                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5594                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5595                    }
5596
5597                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5598                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5599                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5600                        if (isAsec) {
5601                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5602                        } else {
5603                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5604                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5605                                    useIsaSpecificSubdirs);
5606                        }
5607                    }
5608
5609                    maybeThrowExceptionForMultiArchCopy(
5610                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5611
5612                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5613                        if (isAsec) {
5614                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5615                        } else {
5616                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5617                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5618                                    useIsaSpecificSubdirs);
5619                        }
5620                    }
5621
5622                    maybeThrowExceptionForMultiArchCopy(
5623                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5624
5625                    if (abi64 >= 0) {
5626                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5627                    }
5628
5629                    if (abi32 >= 0) {
5630                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5631                        if (abi64 >= 0) {
5632                            pkg.applicationInfo.secondaryCpuAbi = abi;
5633                        } else {
5634                            pkg.applicationInfo.primaryCpuAbi = abi;
5635                        }
5636                    }
5637                } else {
5638                    String[] abiList = (cpuAbiOverride != null) ?
5639                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5640
5641                    // Enable gross and lame hacks for apps that are built with old
5642                    // SDK tools. We must scan their APKs for renderscript bitcode and
5643                    // not launch them if it's present. Don't bother checking on devices
5644                    // that don't have 64 bit support.
5645                    boolean needsRenderScriptOverride = false;
5646                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5647                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5648                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5649                        needsRenderScriptOverride = true;
5650                    }
5651
5652                    final int copyRet;
5653                    if (isAsec) {
5654                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5655                    } else {
5656                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5657                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5658                    }
5659
5660                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5661                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5662                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5663                    }
5664
5665                    if (copyRet >= 0) {
5666                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5667                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5668                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5669                    } else if (needsRenderScriptOverride) {
5670                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5671                    }
5672                }
5673            } catch (IOException ioe) {
5674                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5675            } finally {
5676                IoUtils.closeQuietly(handle);
5677            }
5678
5679            // Now that we've calculated the ABIs and determined if it's an internal app,
5680            // we will go ahead and populate the nativeLibraryPath.
5681            setNativeLibraryPaths(pkg);
5682
5683            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5684            final int[] userIds = sUserManager.getUserIds();
5685            synchronized (mInstallLock) {
5686                // Create a native library symlink only if we have native libraries
5687                // and if the native libraries are 32 bit libraries. We do not provide
5688                // this symlink for 64 bit libraries.
5689                if (pkg.applicationInfo.primaryCpuAbi != null &&
5690                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5691                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5692                    for (int userId : userIds) {
5693                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5694                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5695                                    "Failed linking native library dir (user=" + userId + ")");
5696                        }
5697                    }
5698                }
5699            }
5700        }
5701
5702        // This is a special case for the "system" package, where the ABI is
5703        // dictated by the zygote configuration (and init.rc). We should keep track
5704        // of this ABI so that we can deal with "normal" applications that run under
5705        // the same UID correctly.
5706        if (mPlatformPackage == pkg) {
5707            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5708                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5709        }
5710
5711        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5712        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5713        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5714        // Copy the derived override back to the parsed package, so that we can
5715        // update the package settings accordingly.
5716        pkg.cpuAbiOverride = cpuAbiOverride;
5717
5718        if (DEBUG_ABI_SELECTION) {
5719            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5720                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5721                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5722        }
5723
5724        // Push the derived path down into PackageSettings so we know what to
5725        // clean up at uninstall time.
5726        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5727
5728        if (DEBUG_ABI_SELECTION) {
5729            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5730                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5731                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5732        }
5733
5734        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5735            // We don't do this here during boot because we can do it all
5736            // at once after scanning all existing packages.
5737            //
5738            // We also do this *before* we perform dexopt on this package, so that
5739            // we can avoid redundant dexopts, and also to make sure we've got the
5740            // code and package path correct.
5741            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5742                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5743        }
5744
5745        if ((scanFlags & SCAN_NO_DEX) == 0) {
5746            int result = mPackageDexOptimizer.performDexOpt(pkg, null /* instruction sets */,
5747                    forceDex, (scanFlags & SCAN_DEFER_DEX) != 0, false /* inclDependencies */);
5748            if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5749                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5750            }
5751        }
5752
5753        if (mFactoryTest && pkg.requestedPermissions.contains(
5754                android.Manifest.permission.FACTORY_TEST)) {
5755            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5756        }
5757
5758        ArrayList<PackageParser.Package> clientLibPkgs = null;
5759
5760        // writer
5761        synchronized (mPackages) {
5762            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5763                // Only system apps can add new shared libraries.
5764                if (pkg.libraryNames != null) {
5765                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5766                        String name = pkg.libraryNames.get(i);
5767                        boolean allowed = false;
5768                        if (isUpdatedSystemApp(pkg)) {
5769                            // New library entries can only be added through the
5770                            // system image.  This is important to get rid of a lot
5771                            // of nasty edge cases: for example if we allowed a non-
5772                            // system update of the app to add a library, then uninstalling
5773                            // the update would make the library go away, and assumptions
5774                            // we made such as through app install filtering would now
5775                            // have allowed apps on the device which aren't compatible
5776                            // with it.  Better to just have the restriction here, be
5777                            // conservative, and create many fewer cases that can negatively
5778                            // impact the user experience.
5779                            final PackageSetting sysPs = mSettings
5780                                    .getDisabledSystemPkgLPr(pkg.packageName);
5781                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5782                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5783                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5784                                        allowed = true;
5785                                        allowed = true;
5786                                        break;
5787                                    }
5788                                }
5789                            }
5790                        } else {
5791                            allowed = true;
5792                        }
5793                        if (allowed) {
5794                            if (!mSharedLibraries.containsKey(name)) {
5795                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5796                            } else if (!name.equals(pkg.packageName)) {
5797                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5798                                        + name + " already exists; skipping");
5799                            }
5800                        } else {
5801                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5802                                    + name + " that is not declared on system image; skipping");
5803                        }
5804                    }
5805                    if ((scanFlags&SCAN_BOOTING) == 0) {
5806                        // If we are not booting, we need to update any applications
5807                        // that are clients of our shared library.  If we are booting,
5808                        // this will all be done once the scan is complete.
5809                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5810                    }
5811                }
5812            }
5813        }
5814
5815        // We also need to dexopt any apps that are dependent on this library.  Note that
5816        // if these fail, we should abort the install since installing the library will
5817        // result in some apps being broken.
5818        if (clientLibPkgs != null) {
5819            if ((scanFlags & SCAN_NO_DEX) == 0) {
5820                for (int i = 0; i < clientLibPkgs.size(); i++) {
5821                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5822                    int result = mPackageDexOptimizer.performDexOpt(clientPkg,
5823                            null /* instruction sets */, forceDex,
5824                            (scanFlags & SCAN_DEFER_DEX) != 0, false);
5825                    if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
5826                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5827                                "scanPackageLI failed to dexopt clientLibPkgs");
5828                    }
5829                }
5830            }
5831        }
5832
5833        // Request the ActivityManager to kill the process(only for existing packages)
5834        // so that we do not end up in a confused state while the user is still using the older
5835        // version of the application while the new one gets installed.
5836        if ((scanFlags & SCAN_REPLACING) != 0) {
5837            killApplication(pkg.applicationInfo.packageName,
5838                        pkg.applicationInfo.uid, "update pkg");
5839        }
5840
5841        // Also need to kill any apps that are dependent on the library.
5842        if (clientLibPkgs != null) {
5843            for (int i=0; i<clientLibPkgs.size(); i++) {
5844                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5845                killApplication(clientPkg.applicationInfo.packageName,
5846                        clientPkg.applicationInfo.uid, "update lib");
5847            }
5848        }
5849
5850        // writer
5851        synchronized (mPackages) {
5852            // We don't expect installation to fail beyond this point
5853
5854            // Add the new setting to mSettings
5855            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5856            // Add the new setting to mPackages
5857            mPackages.put(pkg.applicationInfo.packageName, pkg);
5858            // Make sure we don't accidentally delete its data.
5859            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5860            while (iter.hasNext()) {
5861                PackageCleanItem item = iter.next();
5862                if (pkgName.equals(item.packageName)) {
5863                    iter.remove();
5864                }
5865            }
5866
5867            // Take care of first install / last update times.
5868            if (currentTime != 0) {
5869                if (pkgSetting.firstInstallTime == 0) {
5870                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5871                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5872                    pkgSetting.lastUpdateTime = currentTime;
5873                }
5874            } else if (pkgSetting.firstInstallTime == 0) {
5875                // We need *something*.  Take time time stamp of the file.
5876                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5877            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5878                if (scanFileTime != pkgSetting.timeStamp) {
5879                    // A package on the system image has changed; consider this
5880                    // to be an update.
5881                    pkgSetting.lastUpdateTime = scanFileTime;
5882                }
5883            }
5884
5885            // Add the package's KeySets to the global KeySetManagerService
5886            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5887            try {
5888                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5889                if (pkg.mKeySetMapping != null) {
5890                    ksms.addDefinedKeySetsToPackageLPw(pkg.packageName, pkg.mKeySetMapping);
5891                    if (pkg.mUpgradeKeySets != null) {
5892                        ksms.addUpgradeKeySetsToPackageLPw(pkg.packageName, pkg.mUpgradeKeySets);
5893                    }
5894                }
5895            } catch (NullPointerException e) {
5896                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5897            } catch (IllegalArgumentException e) {
5898                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5899            }
5900
5901            int N = pkg.providers.size();
5902            StringBuilder r = null;
5903            int i;
5904            for (i=0; i<N; i++) {
5905                PackageParser.Provider p = pkg.providers.get(i);
5906                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5907                        p.info.processName, pkg.applicationInfo.uid);
5908                mProviders.addProvider(p);
5909                p.syncable = p.info.isSyncable;
5910                if (p.info.authority != null) {
5911                    String names[] = p.info.authority.split(";");
5912                    p.info.authority = null;
5913                    for (int j = 0; j < names.length; j++) {
5914                        if (j == 1 && p.syncable) {
5915                            // We only want the first authority for a provider to possibly be
5916                            // syncable, so if we already added this provider using a different
5917                            // authority clear the syncable flag. We copy the provider before
5918                            // changing it because the mProviders object contains a reference
5919                            // to a provider that we don't want to change.
5920                            // Only do this for the second authority since the resulting provider
5921                            // object can be the same for all future authorities for this provider.
5922                            p = new PackageParser.Provider(p);
5923                            p.syncable = false;
5924                        }
5925                        if (!mProvidersByAuthority.containsKey(names[j])) {
5926                            mProvidersByAuthority.put(names[j], p);
5927                            if (p.info.authority == null) {
5928                                p.info.authority = names[j];
5929                            } else {
5930                                p.info.authority = p.info.authority + ";" + names[j];
5931                            }
5932                            if (DEBUG_PACKAGE_SCANNING) {
5933                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5934                                    Log.d(TAG, "Registered content provider: " + names[j]
5935                                            + ", className = " + p.info.name + ", isSyncable = "
5936                                            + p.info.isSyncable);
5937                            }
5938                        } else {
5939                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5940                            Slog.w(TAG, "Skipping provider name " + names[j] +
5941                                    " (in package " + pkg.applicationInfo.packageName +
5942                                    "): name already used by "
5943                                    + ((other != null && other.getComponentName() != null)
5944                                            ? other.getComponentName().getPackageName() : "?"));
5945                        }
5946                    }
5947                }
5948                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5949                    if (r == null) {
5950                        r = new StringBuilder(256);
5951                    } else {
5952                        r.append(' ');
5953                    }
5954                    r.append(p.info.name);
5955                }
5956            }
5957            if (r != null) {
5958                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
5959            }
5960
5961            N = pkg.services.size();
5962            r = null;
5963            for (i=0; i<N; i++) {
5964                PackageParser.Service s = pkg.services.get(i);
5965                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
5966                        s.info.processName, pkg.applicationInfo.uid);
5967                mServices.addService(s);
5968                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5969                    if (r == null) {
5970                        r = new StringBuilder(256);
5971                    } else {
5972                        r.append(' ');
5973                    }
5974                    r.append(s.info.name);
5975                }
5976            }
5977            if (r != null) {
5978                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
5979            }
5980
5981            N = pkg.receivers.size();
5982            r = null;
5983            for (i=0; i<N; i++) {
5984                PackageParser.Activity a = pkg.receivers.get(i);
5985                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
5986                        a.info.processName, pkg.applicationInfo.uid);
5987                mReceivers.addActivity(a, "receiver");
5988                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
5989                    if (r == null) {
5990                        r = new StringBuilder(256);
5991                    } else {
5992                        r.append(' ');
5993                    }
5994                    r.append(a.info.name);
5995                }
5996            }
5997            if (r != null) {
5998                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
5999            }
6000
6001            N = pkg.activities.size();
6002            r = null;
6003            for (i=0; i<N; i++) {
6004                PackageParser.Activity a = pkg.activities.get(i);
6005                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6006                        a.info.processName, pkg.applicationInfo.uid);
6007                mActivities.addActivity(a, "activity");
6008                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6009                    if (r == null) {
6010                        r = new StringBuilder(256);
6011                    } else {
6012                        r.append(' ');
6013                    }
6014                    r.append(a.info.name);
6015                }
6016            }
6017            if (r != null) {
6018                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6019            }
6020
6021            N = pkg.permissionGroups.size();
6022            r = null;
6023            for (i=0; i<N; i++) {
6024                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6025                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6026                if (cur == null) {
6027                    mPermissionGroups.put(pg.info.name, pg);
6028                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6029                        if (r == null) {
6030                            r = new StringBuilder(256);
6031                        } else {
6032                            r.append(' ');
6033                        }
6034                        r.append(pg.info.name);
6035                    }
6036                } else {
6037                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6038                            + pg.info.packageName + " ignored: original from "
6039                            + cur.info.packageName);
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("DUP:");
6047                        r.append(pg.info.name);
6048                    }
6049                }
6050            }
6051            if (r != null) {
6052                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6053            }
6054
6055            N = pkg.permissions.size();
6056            r = null;
6057            for (i=0; i<N; i++) {
6058                PackageParser.Permission p = pkg.permissions.get(i);
6059                ArrayMap<String, BasePermission> permissionMap =
6060                        p.tree ? mSettings.mPermissionTrees
6061                        : mSettings.mPermissions;
6062                p.group = mPermissionGroups.get(p.info.group);
6063                if (p.info.group == null || p.group != null) {
6064                    BasePermission bp = permissionMap.get(p.info.name);
6065
6066                    // Allow system apps to redefine non-system permissions
6067                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6068                        final boolean currentOwnerIsSystem = (bp.perm != null
6069                                && isSystemApp(bp.perm.owner));
6070                        if (isSystemApp(p.owner)) {
6071                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6072                                // It's a built-in permission and no owner, take ownership now
6073                                bp.packageSetting = pkgSetting;
6074                                bp.perm = p;
6075                                bp.uid = pkg.applicationInfo.uid;
6076                                bp.sourcePackage = p.info.packageName;
6077                            } else if (!currentOwnerIsSystem) {
6078                                String msg = "New decl " + p.owner + " of permission  "
6079                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6080                                reportSettingsProblem(Log.WARN, msg);
6081                                bp = null;
6082                            }
6083                        }
6084                    }
6085
6086                    if (bp == null) {
6087                        bp = new BasePermission(p.info.name, p.info.packageName,
6088                                BasePermission.TYPE_NORMAL);
6089                        permissionMap.put(p.info.name, bp);
6090                    }
6091
6092                    if (bp.perm == null) {
6093                        if (bp.sourcePackage == null
6094                                || bp.sourcePackage.equals(p.info.packageName)) {
6095                            BasePermission tree = findPermissionTreeLP(p.info.name);
6096                            if (tree == null
6097                                    || tree.sourcePackage.equals(p.info.packageName)) {
6098                                bp.packageSetting = pkgSetting;
6099                                bp.perm = p;
6100                                bp.uid = pkg.applicationInfo.uid;
6101                                bp.sourcePackage = p.info.packageName;
6102                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6103                                    if (r == null) {
6104                                        r = new StringBuilder(256);
6105                                    } else {
6106                                        r.append(' ');
6107                                    }
6108                                    r.append(p.info.name);
6109                                }
6110                            } else {
6111                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6112                                        + p.info.packageName + " ignored: base tree "
6113                                        + tree.name + " is from package "
6114                                        + tree.sourcePackage);
6115                            }
6116                        } else {
6117                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6118                                    + p.info.packageName + " ignored: original from "
6119                                    + bp.sourcePackage);
6120                        }
6121                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6122                        if (r == null) {
6123                            r = new StringBuilder(256);
6124                        } else {
6125                            r.append(' ');
6126                        }
6127                        r.append("DUP:");
6128                        r.append(p.info.name);
6129                    }
6130                    if (bp.perm == p) {
6131                        bp.protectionLevel = p.info.protectionLevel;
6132                    }
6133                } else {
6134                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6135                            + p.info.packageName + " ignored: no group "
6136                            + p.group);
6137                }
6138            }
6139            if (r != null) {
6140                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6141            }
6142
6143            N = pkg.instrumentation.size();
6144            r = null;
6145            for (i=0; i<N; i++) {
6146                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6147                a.info.packageName = pkg.applicationInfo.packageName;
6148                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6149                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6150                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6151                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6152                a.info.dataDir = pkg.applicationInfo.dataDir;
6153
6154                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6155                // need other information about the application, like the ABI and what not ?
6156                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6157                mInstrumentation.put(a.getComponentName(), a);
6158                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6159                    if (r == null) {
6160                        r = new StringBuilder(256);
6161                    } else {
6162                        r.append(' ');
6163                    }
6164                    r.append(a.info.name);
6165                }
6166            }
6167            if (r != null) {
6168                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6169            }
6170
6171            if (pkg.protectedBroadcasts != null) {
6172                N = pkg.protectedBroadcasts.size();
6173                for (i=0; i<N; i++) {
6174                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6175                }
6176            }
6177
6178            pkgSetting.setTimeStamp(scanFileTime);
6179
6180            // Create idmap files for pairs of (packages, overlay packages).
6181            // Note: "android", ie framework-res.apk, is handled by native layers.
6182            if (pkg.mOverlayTarget != null) {
6183                // This is an overlay package.
6184                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6185                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6186                        mOverlays.put(pkg.mOverlayTarget,
6187                                new ArrayMap<String, PackageParser.Package>());
6188                    }
6189                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6190                    map.put(pkg.packageName, pkg);
6191                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6192                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6193                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6194                                "scanPackageLI failed to createIdmap");
6195                    }
6196                }
6197            } else if (mOverlays.containsKey(pkg.packageName) &&
6198                    !pkg.packageName.equals("android")) {
6199                // This is a regular package, with one or more known overlay packages.
6200                createIdmapsForPackageLI(pkg);
6201            }
6202        }
6203
6204        return pkg;
6205    }
6206
6207    /**
6208     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6209     * i.e, so that all packages can be run inside a single process if required.
6210     *
6211     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6212     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6213     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6214     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6215     * updating a package that belongs to a shared user.
6216     *
6217     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6218     * adds unnecessary complexity.
6219     */
6220    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6221            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6222        String requiredInstructionSet = null;
6223        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6224            requiredInstructionSet = VMRuntime.getInstructionSet(
6225                     scannedPackage.applicationInfo.primaryCpuAbi);
6226        }
6227
6228        PackageSetting requirer = null;
6229        for (PackageSetting ps : packagesForUser) {
6230            // If packagesForUser contains scannedPackage, we skip it. This will happen
6231            // when scannedPackage is an update of an existing package. Without this check,
6232            // we will never be able to change the ABI of any package belonging to a shared
6233            // user, even if it's compatible with other packages.
6234            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6235                if (ps.primaryCpuAbiString == null) {
6236                    continue;
6237                }
6238
6239                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6240                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6241                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6242                    // this but there's not much we can do.
6243                    String errorMessage = "Instruction set mismatch, "
6244                            + ((requirer == null) ? "[caller]" : requirer)
6245                            + " requires " + requiredInstructionSet + " whereas " + ps
6246                            + " requires " + instructionSet;
6247                    Slog.w(TAG, errorMessage);
6248                }
6249
6250                if (requiredInstructionSet == null) {
6251                    requiredInstructionSet = instructionSet;
6252                    requirer = ps;
6253                }
6254            }
6255        }
6256
6257        if (requiredInstructionSet != null) {
6258            String adjustedAbi;
6259            if (requirer != null) {
6260                // requirer != null implies that either scannedPackage was null or that scannedPackage
6261                // did not require an ABI, in which case we have to adjust scannedPackage to match
6262                // the ABI of the set (which is the same as requirer's ABI)
6263                adjustedAbi = requirer.primaryCpuAbiString;
6264                if (scannedPackage != null) {
6265                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6266                }
6267            } else {
6268                // requirer == null implies that we're updating all ABIs in the set to
6269                // match scannedPackage.
6270                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6271            }
6272
6273            for (PackageSetting ps : packagesForUser) {
6274                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6275                    if (ps.primaryCpuAbiString != null) {
6276                        continue;
6277                    }
6278
6279                    ps.primaryCpuAbiString = adjustedAbi;
6280                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6281                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6282                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6283
6284                        int result = mPackageDexOptimizer.performDexOpt(ps.pkg,
6285                                null /* instruction sets */, forceDexOpt, deferDexOpt, true);
6286                        if (result == PackageDexOptimizer.DEX_OPT_FAILED) {
6287                            ps.primaryCpuAbiString = null;
6288                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6289                            return;
6290                        } else {
6291                            mInstaller.rmdex(ps.codePathString,
6292                                    getDexCodeInstructionSet(getPreferredInstructionSet()));
6293                        }
6294                    }
6295                }
6296            }
6297        }
6298    }
6299
6300    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6301        synchronized (mPackages) {
6302            mResolverReplaced = true;
6303            // Set up information for custom user intent resolution activity.
6304            mResolveActivity.applicationInfo = pkg.applicationInfo;
6305            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6306            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6307            mResolveActivity.processName = pkg.applicationInfo.packageName;
6308            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6309            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6310                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6311            mResolveActivity.theme = 0;
6312            mResolveActivity.exported = true;
6313            mResolveActivity.enabled = true;
6314            mResolveInfo.activityInfo = mResolveActivity;
6315            mResolveInfo.priority = 0;
6316            mResolveInfo.preferredOrder = 0;
6317            mResolveInfo.match = 0;
6318            mResolveComponentName = mCustomResolverComponentName;
6319            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6320                    mResolveComponentName);
6321        }
6322    }
6323
6324    private static String calculateBundledApkRoot(final String codePathString) {
6325        final File codePath = new File(codePathString);
6326        final File codeRoot;
6327        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6328            codeRoot = Environment.getRootDirectory();
6329        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6330            codeRoot = Environment.getOemDirectory();
6331        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6332            codeRoot = Environment.getVendorDirectory();
6333        } else {
6334            // Unrecognized code path; take its top real segment as the apk root:
6335            // e.g. /something/app/blah.apk => /something
6336            try {
6337                File f = codePath.getCanonicalFile();
6338                File parent = f.getParentFile();    // non-null because codePath is a file
6339                File tmp;
6340                while ((tmp = parent.getParentFile()) != null) {
6341                    f = parent;
6342                    parent = tmp;
6343                }
6344                codeRoot = f;
6345                Slog.w(TAG, "Unrecognized code path "
6346                        + codePath + " - using " + codeRoot);
6347            } catch (IOException e) {
6348                // Can't canonicalize the code path -- shenanigans?
6349                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6350                return Environment.getRootDirectory().getPath();
6351            }
6352        }
6353        return codeRoot.getPath();
6354    }
6355
6356    /**
6357     * Derive and set the location of native libraries for the given package,
6358     * which varies depending on where and how the package was installed.
6359     */
6360    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6361        final ApplicationInfo info = pkg.applicationInfo;
6362        final String codePath = pkg.codePath;
6363        final File codeFile = new File(codePath);
6364        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6365        final boolean asecApp = info.isForwardLocked() || isExternal(info);
6366
6367        info.nativeLibraryRootDir = null;
6368        info.nativeLibraryRootRequiresIsa = false;
6369        info.nativeLibraryDir = null;
6370        info.secondaryNativeLibraryDir = null;
6371
6372        if (isApkFile(codeFile)) {
6373            // Monolithic install
6374            if (bundledApp) {
6375                // If "/system/lib64/apkname" exists, assume that is the per-package
6376                // native library directory to use; otherwise use "/system/lib/apkname".
6377                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6378                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6379                        getPrimaryInstructionSet(info));
6380
6381                // This is a bundled system app so choose the path based on the ABI.
6382                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6383                // is just the default path.
6384                final String apkName = deriveCodePathName(codePath);
6385                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6386                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6387                        apkName).getAbsolutePath();
6388
6389                if (info.secondaryCpuAbi != null) {
6390                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6391                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6392                            secondaryLibDir, apkName).getAbsolutePath();
6393                }
6394            } else if (asecApp) {
6395                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6396                        .getAbsolutePath();
6397            } else {
6398                final String apkName = deriveCodePathName(codePath);
6399                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6400                        .getAbsolutePath();
6401            }
6402
6403            info.nativeLibraryRootRequiresIsa = false;
6404            info.nativeLibraryDir = info.nativeLibraryRootDir;
6405        } else {
6406            // Cluster install
6407            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6408            info.nativeLibraryRootRequiresIsa = true;
6409
6410            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6411                    getPrimaryInstructionSet(info)).getAbsolutePath();
6412
6413            if (info.secondaryCpuAbi != null) {
6414                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6415                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6416            }
6417        }
6418    }
6419
6420    /**
6421     * Calculate the abis and roots for a bundled app. These can uniquely
6422     * be determined from the contents of the system partition, i.e whether
6423     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6424     * of this information, and instead assume that the system was built
6425     * sensibly.
6426     */
6427    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6428                                           PackageSetting pkgSetting) {
6429        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6430
6431        // If "/system/lib64/apkname" exists, assume that is the per-package
6432        // native library directory to use; otherwise use "/system/lib/apkname".
6433        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6434        setBundledAppAbi(pkg, apkRoot, apkName);
6435        // pkgSetting might be null during rescan following uninstall of updates
6436        // to a bundled app, so accommodate that possibility.  The settings in
6437        // that case will be established later from the parsed package.
6438        //
6439        // If the settings aren't null, sync them up with what we've just derived.
6440        // note that apkRoot isn't stored in the package settings.
6441        if (pkgSetting != null) {
6442            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6443            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6444        }
6445    }
6446
6447    /**
6448     * Deduces the ABI of a bundled app and sets the relevant fields on the
6449     * parsed pkg object.
6450     *
6451     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6452     *        under which system libraries are installed.
6453     * @param apkName the name of the installed package.
6454     */
6455    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6456        final File codeFile = new File(pkg.codePath);
6457
6458        final boolean has64BitLibs;
6459        final boolean has32BitLibs;
6460        if (isApkFile(codeFile)) {
6461            // Monolithic install
6462            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6463            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6464        } else {
6465            // Cluster install
6466            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6467            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6468                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6469                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6470                has64BitLibs = (new File(rootDir, isa)).exists();
6471            } else {
6472                has64BitLibs = false;
6473            }
6474            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6475                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6476                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6477                has32BitLibs = (new File(rootDir, isa)).exists();
6478            } else {
6479                has32BitLibs = false;
6480            }
6481        }
6482
6483        if (has64BitLibs && !has32BitLibs) {
6484            // The package has 64 bit libs, but not 32 bit libs. Its primary
6485            // ABI should be 64 bit. We can safely assume here that the bundled
6486            // native libraries correspond to the most preferred ABI in the list.
6487
6488            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6489            pkg.applicationInfo.secondaryCpuAbi = null;
6490        } else if (has32BitLibs && !has64BitLibs) {
6491            // The package has 32 bit libs but not 64 bit libs. Its primary
6492            // ABI should be 32 bit.
6493
6494            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6495            pkg.applicationInfo.secondaryCpuAbi = null;
6496        } else if (has32BitLibs && has64BitLibs) {
6497            // The application has both 64 and 32 bit bundled libraries. We check
6498            // here that the app declares multiArch support, and warn if it doesn't.
6499            //
6500            // We will be lenient here and record both ABIs. The primary will be the
6501            // ABI that's higher on the list, i.e, a device that's configured to prefer
6502            // 64 bit apps will see a 64 bit primary ABI,
6503
6504            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6505                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6506            }
6507
6508            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6509                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6510                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6511            } else {
6512                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6513                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6514            }
6515        } else {
6516            pkg.applicationInfo.primaryCpuAbi = null;
6517            pkg.applicationInfo.secondaryCpuAbi = null;
6518        }
6519    }
6520
6521    private void killApplication(String pkgName, int appId, String reason) {
6522        // Request the ActivityManager to kill the process(only for existing packages)
6523        // so that we do not end up in a confused state while the user is still using the older
6524        // version of the application while the new one gets installed.
6525        IActivityManager am = ActivityManagerNative.getDefault();
6526        if (am != null) {
6527            try {
6528                am.killApplicationWithAppId(pkgName, appId, reason);
6529            } catch (RemoteException e) {
6530            }
6531        }
6532    }
6533
6534    void removePackageLI(PackageSetting ps, boolean chatty) {
6535        if (DEBUG_INSTALL) {
6536            if (chatty)
6537                Log.d(TAG, "Removing package " + ps.name);
6538        }
6539
6540        // writer
6541        synchronized (mPackages) {
6542            mPackages.remove(ps.name);
6543            final PackageParser.Package pkg = ps.pkg;
6544            if (pkg != null) {
6545                cleanPackageDataStructuresLILPw(pkg, chatty);
6546            }
6547        }
6548    }
6549
6550    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6551        if (DEBUG_INSTALL) {
6552            if (chatty)
6553                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6554        }
6555
6556        // writer
6557        synchronized (mPackages) {
6558            mPackages.remove(pkg.applicationInfo.packageName);
6559            cleanPackageDataStructuresLILPw(pkg, chatty);
6560        }
6561    }
6562
6563    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6564        int N = pkg.providers.size();
6565        StringBuilder r = null;
6566        int i;
6567        for (i=0; i<N; i++) {
6568            PackageParser.Provider p = pkg.providers.get(i);
6569            mProviders.removeProvider(p);
6570            if (p.info.authority == null) {
6571
6572                /* There was another ContentProvider with this authority when
6573                 * this app was installed so this authority is null,
6574                 * Ignore it as we don't have to unregister the provider.
6575                 */
6576                continue;
6577            }
6578            String names[] = p.info.authority.split(";");
6579            for (int j = 0; j < names.length; j++) {
6580                if (mProvidersByAuthority.get(names[j]) == p) {
6581                    mProvidersByAuthority.remove(names[j]);
6582                    if (DEBUG_REMOVE) {
6583                        if (chatty)
6584                            Log.d(TAG, "Unregistered content provider: " + names[j]
6585                                    + ", className = " + p.info.name + ", isSyncable = "
6586                                    + p.info.isSyncable);
6587                    }
6588                }
6589            }
6590            if (DEBUG_REMOVE && chatty) {
6591                if (r == null) {
6592                    r = new StringBuilder(256);
6593                } else {
6594                    r.append(' ');
6595                }
6596                r.append(p.info.name);
6597            }
6598        }
6599        if (r != null) {
6600            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6601        }
6602
6603        N = pkg.services.size();
6604        r = null;
6605        for (i=0; i<N; i++) {
6606            PackageParser.Service s = pkg.services.get(i);
6607            mServices.removeService(s);
6608            if (chatty) {
6609                if (r == null) {
6610                    r = new StringBuilder(256);
6611                } else {
6612                    r.append(' ');
6613                }
6614                r.append(s.info.name);
6615            }
6616        }
6617        if (r != null) {
6618            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6619        }
6620
6621        N = pkg.receivers.size();
6622        r = null;
6623        for (i=0; i<N; i++) {
6624            PackageParser.Activity a = pkg.receivers.get(i);
6625            mReceivers.removeActivity(a, "receiver");
6626            if (DEBUG_REMOVE && chatty) {
6627                if (r == null) {
6628                    r = new StringBuilder(256);
6629                } else {
6630                    r.append(' ');
6631                }
6632                r.append(a.info.name);
6633            }
6634        }
6635        if (r != null) {
6636            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6637        }
6638
6639        N = pkg.activities.size();
6640        r = null;
6641        for (i=0; i<N; i++) {
6642            PackageParser.Activity a = pkg.activities.get(i);
6643            mActivities.removeActivity(a, "activity");
6644            if (DEBUG_REMOVE && chatty) {
6645                if (r == null) {
6646                    r = new StringBuilder(256);
6647                } else {
6648                    r.append(' ');
6649                }
6650                r.append(a.info.name);
6651            }
6652        }
6653        if (r != null) {
6654            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6655        }
6656
6657        N = pkg.permissions.size();
6658        r = null;
6659        for (i=0; i<N; i++) {
6660            PackageParser.Permission p = pkg.permissions.get(i);
6661            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6662            if (bp == null) {
6663                bp = mSettings.mPermissionTrees.get(p.info.name);
6664            }
6665            if (bp != null && bp.perm == p) {
6666                bp.perm = null;
6667                if (DEBUG_REMOVE && chatty) {
6668                    if (r == null) {
6669                        r = new StringBuilder(256);
6670                    } else {
6671                        r.append(' ');
6672                    }
6673                    r.append(p.info.name);
6674                }
6675            }
6676            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6677                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6678                if (appOpPerms != null) {
6679                    appOpPerms.remove(pkg.packageName);
6680                }
6681            }
6682        }
6683        if (r != null) {
6684            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6685        }
6686
6687        N = pkg.requestedPermissions.size();
6688        r = null;
6689        for (i=0; i<N; i++) {
6690            String perm = pkg.requestedPermissions.get(i);
6691            BasePermission bp = mSettings.mPermissions.get(perm);
6692            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6693                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6694                if (appOpPerms != null) {
6695                    appOpPerms.remove(pkg.packageName);
6696                    if (appOpPerms.isEmpty()) {
6697                        mAppOpPermissionPackages.remove(perm);
6698                    }
6699                }
6700            }
6701        }
6702        if (r != null) {
6703            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6704        }
6705
6706        N = pkg.instrumentation.size();
6707        r = null;
6708        for (i=0; i<N; i++) {
6709            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6710            mInstrumentation.remove(a.getComponentName());
6711            if (DEBUG_REMOVE && chatty) {
6712                if (r == null) {
6713                    r = new StringBuilder(256);
6714                } else {
6715                    r.append(' ');
6716                }
6717                r.append(a.info.name);
6718            }
6719        }
6720        if (r != null) {
6721            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6722        }
6723
6724        r = null;
6725        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6726            // Only system apps can hold shared libraries.
6727            if (pkg.libraryNames != null) {
6728                for (i=0; i<pkg.libraryNames.size(); i++) {
6729                    String name = pkg.libraryNames.get(i);
6730                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6731                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6732                        mSharedLibraries.remove(name);
6733                        if (DEBUG_REMOVE && chatty) {
6734                            if (r == null) {
6735                                r = new StringBuilder(256);
6736                            } else {
6737                                r.append(' ');
6738                            }
6739                            r.append(name);
6740                        }
6741                    }
6742                }
6743            }
6744        }
6745        if (r != null) {
6746            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6747        }
6748    }
6749
6750    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6751        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6752            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6753                return true;
6754            }
6755        }
6756        return false;
6757    }
6758
6759    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6760    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6761    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6762
6763    private void updatePermissionsLPw(String changingPkg,
6764            PackageParser.Package pkgInfo, int flags) {
6765        // Make sure there are no dangling permission trees.
6766        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6767        while (it.hasNext()) {
6768            final BasePermission bp = it.next();
6769            if (bp.packageSetting == null) {
6770                // We may not yet have parsed the package, so just see if
6771                // we still know about its settings.
6772                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6773            }
6774            if (bp.packageSetting == null) {
6775                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6776                        + " from package " + bp.sourcePackage);
6777                it.remove();
6778            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6779                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6780                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6781                            + " from package " + bp.sourcePackage);
6782                    flags |= UPDATE_PERMISSIONS_ALL;
6783                    it.remove();
6784                }
6785            }
6786        }
6787
6788        // Make sure all dynamic permissions have been assigned to a package,
6789        // and make sure there are no dangling permissions.
6790        it = mSettings.mPermissions.values().iterator();
6791        while (it.hasNext()) {
6792            final BasePermission bp = it.next();
6793            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6794                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6795                        + bp.name + " pkg=" + bp.sourcePackage
6796                        + " info=" + bp.pendingInfo);
6797                if (bp.packageSetting == null && bp.pendingInfo != null) {
6798                    final BasePermission tree = findPermissionTreeLP(bp.name);
6799                    if (tree != null && tree.perm != null) {
6800                        bp.packageSetting = tree.packageSetting;
6801                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6802                                new PermissionInfo(bp.pendingInfo));
6803                        bp.perm.info.packageName = tree.perm.info.packageName;
6804                        bp.perm.info.name = bp.name;
6805                        bp.uid = tree.uid;
6806                    }
6807                }
6808            }
6809            if (bp.packageSetting == null) {
6810                // We may not yet have parsed the package, so just see if
6811                // we still know about its settings.
6812                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6813            }
6814            if (bp.packageSetting == null) {
6815                Slog.w(TAG, "Removing dangling permission: " + bp.name
6816                        + " from package " + bp.sourcePackage);
6817                it.remove();
6818            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6819                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6820                    Slog.i(TAG, "Removing old permission: " + bp.name
6821                            + " from package " + bp.sourcePackage);
6822                    flags |= UPDATE_PERMISSIONS_ALL;
6823                    it.remove();
6824                }
6825            }
6826        }
6827
6828        // Now update the permissions for all packages, in particular
6829        // replace the granted permissions of the system packages.
6830        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6831            for (PackageParser.Package pkg : mPackages.values()) {
6832                if (pkg != pkgInfo) {
6833                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6834                            changingPkg);
6835                }
6836            }
6837        }
6838
6839        if (pkgInfo != null) {
6840            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6841        }
6842    }
6843
6844    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6845            String packageOfInterest) {
6846        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6847        if (ps == null) {
6848            return;
6849        }
6850        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6851        ArraySet<String> origPermissions = gp.grantedPermissions;
6852        boolean changedPermission = false;
6853
6854        if (replace) {
6855            ps.permissionsFixed = false;
6856            if (gp == ps) {
6857                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6858                gp.grantedPermissions.clear();
6859                gp.gids = mGlobalGids;
6860            }
6861        }
6862
6863        if (gp.gids == null) {
6864            gp.gids = mGlobalGids;
6865        }
6866
6867        final int N = pkg.requestedPermissions.size();
6868        for (int i=0; i<N; i++) {
6869            final String name = pkg.requestedPermissions.get(i);
6870            final boolean required = pkg.requestedPermissionsRequired.get(i);
6871            final BasePermission bp = mSettings.mPermissions.get(name);
6872            if (DEBUG_INSTALL) {
6873                if (gp != ps) {
6874                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6875                }
6876            }
6877
6878            if (bp == null || bp.packageSetting == null) {
6879                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6880                    Slog.w(TAG, "Unknown permission " + name
6881                            + " in package " + pkg.packageName);
6882                }
6883                continue;
6884            }
6885
6886            final String perm = bp.name;
6887            boolean allowed;
6888            boolean allowedSig = false;
6889            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6890                // Keep track of app op permissions.
6891                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6892                if (pkgs == null) {
6893                    pkgs = new ArraySet<>();
6894                    mAppOpPermissionPackages.put(bp.name, pkgs);
6895                }
6896                pkgs.add(pkg.packageName);
6897            }
6898            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6899            if (level == PermissionInfo.PROTECTION_NORMAL
6900                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6901                // We grant a normal or dangerous permission if any of the following
6902                // are true:
6903                // 1) The permission is required
6904                // 2) The permission is optional, but was granted in the past
6905                // 3) The permission is optional, but was requested by an
6906                //    app in /system (not /data)
6907                //
6908                // Otherwise, reject the permission.
6909                allowed = (required || origPermissions.contains(perm)
6910                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6911            } else if (bp.packageSetting == null) {
6912                // This permission is invalid; skip it.
6913                allowed = false;
6914            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
6915                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
6916                if (allowed) {
6917                    allowedSig = true;
6918                }
6919            } else {
6920                allowed = false;
6921            }
6922            if (DEBUG_INSTALL) {
6923                if (gp != ps) {
6924                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
6925                }
6926            }
6927            if (allowed) {
6928                if (!isSystemApp(ps) && ps.permissionsFixed) {
6929                    // If this is an existing, non-system package, then
6930                    // we can't add any new permissions to it.
6931                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
6932                        // Except...  if this is a permission that was added
6933                        // to the platform (note: need to only do this when
6934                        // updating the platform).
6935                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
6936                    }
6937                }
6938                if (allowed) {
6939                    if (!gp.grantedPermissions.contains(perm)) {
6940                        changedPermission = true;
6941                        gp.grantedPermissions.add(perm);
6942                        gp.gids = appendInts(gp.gids, bp.gids);
6943                    } else if (!ps.haveGids) {
6944                        gp.gids = appendInts(gp.gids, bp.gids);
6945                    }
6946                } else {
6947                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6948                        Slog.w(TAG, "Not granting permission " + perm
6949                                + " to package " + pkg.packageName
6950                                + " because it was previously installed without");
6951                    }
6952                }
6953            } else {
6954                if (gp.grantedPermissions.remove(perm)) {
6955                    changedPermission = true;
6956                    gp.gids = removeInts(gp.gids, bp.gids);
6957                    Slog.i(TAG, "Un-granting permission " + perm
6958                            + " from package " + pkg.packageName
6959                            + " (protectionLevel=" + bp.protectionLevel
6960                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6961                            + ")");
6962                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
6963                    // Don't print warning for app op permissions, since it is fine for them
6964                    // not to be granted, there is a UI for the user to decide.
6965                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6966                        Slog.w(TAG, "Not granting permission " + perm
6967                                + " to package " + pkg.packageName
6968                                + " (protectionLevel=" + bp.protectionLevel
6969                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
6970                                + ")");
6971                    }
6972                }
6973            }
6974        }
6975
6976        if ((changedPermission || replace) && !ps.permissionsFixed &&
6977                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
6978            // This is the first that we have heard about this package, so the
6979            // permissions we have now selected are fixed until explicitly
6980            // changed.
6981            ps.permissionsFixed = true;
6982        }
6983        ps.haveGids = true;
6984    }
6985
6986    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
6987        boolean allowed = false;
6988        final int NP = PackageParser.NEW_PERMISSIONS.length;
6989        for (int ip=0; ip<NP; ip++) {
6990            final PackageParser.NewPermissionInfo npi
6991                    = PackageParser.NEW_PERMISSIONS[ip];
6992            if (npi.name.equals(perm)
6993                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
6994                allowed = true;
6995                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
6996                        + pkg.packageName);
6997                break;
6998            }
6999        }
7000        return allowed;
7001    }
7002
7003    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7004                                          BasePermission bp, ArraySet<String> origPermissions) {
7005        boolean allowed;
7006        allowed = (compareSignatures(
7007                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7008                        == PackageManager.SIGNATURE_MATCH)
7009                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7010                        == PackageManager.SIGNATURE_MATCH);
7011        if (!allowed && (bp.protectionLevel
7012                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7013            if (isSystemApp(pkg)) {
7014                // For updated system applications, a system permission
7015                // is granted only if it had been defined by the original application.
7016                if (isUpdatedSystemApp(pkg)) {
7017                    final PackageSetting sysPs = mSettings
7018                            .getDisabledSystemPkgLPr(pkg.packageName);
7019                    final GrantedPermissions origGp = sysPs.sharedUser != null
7020                            ? sysPs.sharedUser : sysPs;
7021
7022                    if (origGp.grantedPermissions.contains(perm)) {
7023                        // If the original was granted this permission, we take
7024                        // that grant decision as read and propagate it to the
7025                        // update.
7026                        if (sysPs.isPrivileged()) {
7027                            allowed = true;
7028                        }
7029                    } else {
7030                        // The system apk may have been updated with an older
7031                        // version of the one on the data partition, but which
7032                        // granted a new system permission that it didn't have
7033                        // before.  In this case we do want to allow the app to
7034                        // now get the new permission if the ancestral apk is
7035                        // privileged to get it.
7036                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7037                            for (int j=0;
7038                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7039                                if (perm.equals(
7040                                        sysPs.pkg.requestedPermissions.get(j))) {
7041                                    allowed = true;
7042                                    break;
7043                                }
7044                            }
7045                        }
7046                    }
7047                } else {
7048                    allowed = isPrivilegedApp(pkg);
7049                }
7050            }
7051        }
7052        if (!allowed && (bp.protectionLevel
7053                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7054            // For development permissions, a development permission
7055            // is granted only if it was already granted.
7056            allowed = origPermissions.contains(perm);
7057        }
7058        return allowed;
7059    }
7060
7061    final class ActivityIntentResolver
7062            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7063        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7064                boolean defaultOnly, int userId) {
7065            if (!sUserManager.exists(userId)) return null;
7066            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7067            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7068        }
7069
7070        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7071                int userId) {
7072            if (!sUserManager.exists(userId)) return null;
7073            mFlags = flags;
7074            return super.queryIntent(intent, resolvedType,
7075                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7076        }
7077
7078        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7079                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7080            if (!sUserManager.exists(userId)) return null;
7081            if (packageActivities == null) {
7082                return null;
7083            }
7084            mFlags = flags;
7085            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7086            final int N = packageActivities.size();
7087            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7088                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7089
7090            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7091            for (int i = 0; i < N; ++i) {
7092                intentFilters = packageActivities.get(i).intents;
7093                if (intentFilters != null && intentFilters.size() > 0) {
7094                    PackageParser.ActivityIntentInfo[] array =
7095                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7096                    intentFilters.toArray(array);
7097                    listCut.add(array);
7098                }
7099            }
7100            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7101        }
7102
7103        public final void addActivity(PackageParser.Activity a, String type) {
7104            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7105            mActivities.put(a.getComponentName(), a);
7106            if (DEBUG_SHOW_INFO)
7107                Log.v(
7108                TAG, "  " + type + " " +
7109                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7110            if (DEBUG_SHOW_INFO)
7111                Log.v(TAG, "    Class=" + a.info.name);
7112            final int NI = a.intents.size();
7113            for (int j=0; j<NI; j++) {
7114                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7115                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7116                    intent.setPriority(0);
7117                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7118                            + a.className + " with priority > 0, forcing to 0");
7119                }
7120                if (DEBUG_SHOW_INFO) {
7121                    Log.v(TAG, "    IntentFilter:");
7122                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7123                }
7124                if (!intent.debugCheck()) {
7125                    Log.w(TAG, "==> For Activity " + a.info.name);
7126                }
7127                addFilter(intent);
7128            }
7129        }
7130
7131        public final void removeActivity(PackageParser.Activity a, String type) {
7132            mActivities.remove(a.getComponentName());
7133            if (DEBUG_SHOW_INFO) {
7134                Log.v(TAG, "  " + type + " "
7135                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7136                                : a.info.name) + ":");
7137                Log.v(TAG, "    Class=" + a.info.name);
7138            }
7139            final int NI = a.intents.size();
7140            for (int j=0; j<NI; j++) {
7141                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7142                if (DEBUG_SHOW_INFO) {
7143                    Log.v(TAG, "    IntentFilter:");
7144                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7145                }
7146                removeFilter(intent);
7147            }
7148        }
7149
7150        @Override
7151        protected boolean allowFilterResult(
7152                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7153            ActivityInfo filterAi = filter.activity.info;
7154            for (int i=dest.size()-1; i>=0; i--) {
7155                ActivityInfo destAi = dest.get(i).activityInfo;
7156                if (destAi.name == filterAi.name
7157                        && destAi.packageName == filterAi.packageName) {
7158                    return false;
7159                }
7160            }
7161            return true;
7162        }
7163
7164        @Override
7165        protected ActivityIntentInfo[] newArray(int size) {
7166            return new ActivityIntentInfo[size];
7167        }
7168
7169        @Override
7170        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7171            if (!sUserManager.exists(userId)) return true;
7172            PackageParser.Package p = filter.activity.owner;
7173            if (p != null) {
7174                PackageSetting ps = (PackageSetting)p.mExtras;
7175                if (ps != null) {
7176                    // System apps are never considered stopped for purposes of
7177                    // filtering, because there may be no way for the user to
7178                    // actually re-launch them.
7179                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7180                            && ps.getStopped(userId);
7181                }
7182            }
7183            return false;
7184        }
7185
7186        @Override
7187        protected boolean isPackageForFilter(String packageName,
7188                PackageParser.ActivityIntentInfo info) {
7189            return packageName.equals(info.activity.owner.packageName);
7190        }
7191
7192        @Override
7193        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7194                int match, int userId) {
7195            if (!sUserManager.exists(userId)) return null;
7196            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7197                return null;
7198            }
7199            final PackageParser.Activity activity = info.activity;
7200            if (mSafeMode && (activity.info.applicationInfo.flags
7201                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7202                return null;
7203            }
7204            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7205            if (ps == null) {
7206                return null;
7207            }
7208            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7209                    ps.readUserState(userId), userId);
7210            if (ai == null) {
7211                return null;
7212            }
7213            final ResolveInfo res = new ResolveInfo();
7214            res.activityInfo = ai;
7215            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7216                res.filter = info;
7217            }
7218            res.priority = info.getPriority();
7219            res.preferredOrder = activity.owner.mPreferredOrder;
7220            //System.out.println("Result: " + res.activityInfo.className +
7221            //                   " = " + res.priority);
7222            res.match = match;
7223            res.isDefault = info.hasDefault;
7224            res.labelRes = info.labelRes;
7225            res.nonLocalizedLabel = info.nonLocalizedLabel;
7226            if (userNeedsBadging(userId)) {
7227                res.noResourceId = true;
7228            } else {
7229                res.icon = info.icon;
7230            }
7231            res.system = isSystemApp(res.activityInfo.applicationInfo);
7232            return res;
7233        }
7234
7235        @Override
7236        protected void sortResults(List<ResolveInfo> results) {
7237            Collections.sort(results, mResolvePrioritySorter);
7238        }
7239
7240        @Override
7241        protected void dumpFilter(PrintWriter out, String prefix,
7242                PackageParser.ActivityIntentInfo filter) {
7243            out.print(prefix); out.print(
7244                    Integer.toHexString(System.identityHashCode(filter.activity)));
7245                    out.print(' ');
7246                    filter.activity.printComponentShortName(out);
7247                    out.print(" filter ");
7248                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7249        }
7250
7251        @Override
7252        protected Object filterToLabel(PackageParser.ActivityIntentInfo filter) {
7253            return filter.activity;
7254        }
7255
7256        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7257            PackageParser.Activity activity = (PackageParser.Activity)label;
7258            out.print(prefix); out.print(
7259                    Integer.toHexString(System.identityHashCode(activity)));
7260                    out.print(' ');
7261                    activity.printComponentShortName(out);
7262            if (count > 1) {
7263                out.print(" ("); out.print(count); out.print(" filters)");
7264            }
7265            out.println();
7266        }
7267
7268//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7269//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7270//            final List<ResolveInfo> retList = Lists.newArrayList();
7271//            while (i.hasNext()) {
7272//                final ResolveInfo resolveInfo = i.next();
7273//                if (isEnabledLP(resolveInfo.activityInfo)) {
7274//                    retList.add(resolveInfo);
7275//                }
7276//            }
7277//            return retList;
7278//        }
7279
7280        // Keys are String (activity class name), values are Activity.
7281        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7282                = new ArrayMap<ComponentName, PackageParser.Activity>();
7283        private int mFlags;
7284    }
7285
7286    private final class ServiceIntentResolver
7287            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7288        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7289                boolean defaultOnly, int userId) {
7290            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7291            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7292        }
7293
7294        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7295                int userId) {
7296            if (!sUserManager.exists(userId)) return null;
7297            mFlags = flags;
7298            return super.queryIntent(intent, resolvedType,
7299                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7300        }
7301
7302        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7303                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7304            if (!sUserManager.exists(userId)) return null;
7305            if (packageServices == null) {
7306                return null;
7307            }
7308            mFlags = flags;
7309            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7310            final int N = packageServices.size();
7311            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7312                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7313
7314            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7315            for (int i = 0; i < N; ++i) {
7316                intentFilters = packageServices.get(i).intents;
7317                if (intentFilters != null && intentFilters.size() > 0) {
7318                    PackageParser.ServiceIntentInfo[] array =
7319                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7320                    intentFilters.toArray(array);
7321                    listCut.add(array);
7322                }
7323            }
7324            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7325        }
7326
7327        public final void addService(PackageParser.Service s) {
7328            mServices.put(s.getComponentName(), s);
7329            if (DEBUG_SHOW_INFO) {
7330                Log.v(TAG, "  "
7331                        + (s.info.nonLocalizedLabel != null
7332                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7333                Log.v(TAG, "    Class=" + s.info.name);
7334            }
7335            final int NI = s.intents.size();
7336            int j;
7337            for (j=0; j<NI; j++) {
7338                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7339                if (DEBUG_SHOW_INFO) {
7340                    Log.v(TAG, "    IntentFilter:");
7341                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7342                }
7343                if (!intent.debugCheck()) {
7344                    Log.w(TAG, "==> For Service " + s.info.name);
7345                }
7346                addFilter(intent);
7347            }
7348        }
7349
7350        public final void removeService(PackageParser.Service s) {
7351            mServices.remove(s.getComponentName());
7352            if (DEBUG_SHOW_INFO) {
7353                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7354                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7355                Log.v(TAG, "    Class=" + s.info.name);
7356            }
7357            final int NI = s.intents.size();
7358            int j;
7359            for (j=0; j<NI; j++) {
7360                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7361                if (DEBUG_SHOW_INFO) {
7362                    Log.v(TAG, "    IntentFilter:");
7363                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7364                }
7365                removeFilter(intent);
7366            }
7367        }
7368
7369        @Override
7370        protected boolean allowFilterResult(
7371                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7372            ServiceInfo filterSi = filter.service.info;
7373            for (int i=dest.size()-1; i>=0; i--) {
7374                ServiceInfo destAi = dest.get(i).serviceInfo;
7375                if (destAi.name == filterSi.name
7376                        && destAi.packageName == filterSi.packageName) {
7377                    return false;
7378                }
7379            }
7380            return true;
7381        }
7382
7383        @Override
7384        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7385            return new PackageParser.ServiceIntentInfo[size];
7386        }
7387
7388        @Override
7389        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7390            if (!sUserManager.exists(userId)) return true;
7391            PackageParser.Package p = filter.service.owner;
7392            if (p != null) {
7393                PackageSetting ps = (PackageSetting)p.mExtras;
7394                if (ps != null) {
7395                    // System apps are never considered stopped for purposes of
7396                    // filtering, because there may be no way for the user to
7397                    // actually re-launch them.
7398                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7399                            && ps.getStopped(userId);
7400                }
7401            }
7402            return false;
7403        }
7404
7405        @Override
7406        protected boolean isPackageForFilter(String packageName,
7407                PackageParser.ServiceIntentInfo info) {
7408            return packageName.equals(info.service.owner.packageName);
7409        }
7410
7411        @Override
7412        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7413                int match, int userId) {
7414            if (!sUserManager.exists(userId)) return null;
7415            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7416            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7417                return null;
7418            }
7419            final PackageParser.Service service = info.service;
7420            if (mSafeMode && (service.info.applicationInfo.flags
7421                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7422                return null;
7423            }
7424            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7425            if (ps == null) {
7426                return null;
7427            }
7428            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7429                    ps.readUserState(userId), userId);
7430            if (si == null) {
7431                return null;
7432            }
7433            final ResolveInfo res = new ResolveInfo();
7434            res.serviceInfo = si;
7435            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7436                res.filter = filter;
7437            }
7438            res.priority = info.getPriority();
7439            res.preferredOrder = service.owner.mPreferredOrder;
7440            //System.out.println("Result: " + res.activityInfo.className +
7441            //                   " = " + res.priority);
7442            res.match = match;
7443            res.isDefault = info.hasDefault;
7444            res.labelRes = info.labelRes;
7445            res.nonLocalizedLabel = info.nonLocalizedLabel;
7446            res.icon = info.icon;
7447            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7448            return res;
7449        }
7450
7451        @Override
7452        protected void sortResults(List<ResolveInfo> results) {
7453            Collections.sort(results, mResolvePrioritySorter);
7454        }
7455
7456        @Override
7457        protected void dumpFilter(PrintWriter out, String prefix,
7458                PackageParser.ServiceIntentInfo filter) {
7459            out.print(prefix); out.print(
7460                    Integer.toHexString(System.identityHashCode(filter.service)));
7461                    out.print(' ');
7462                    filter.service.printComponentShortName(out);
7463                    out.print(" filter ");
7464                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7465        }
7466
7467        @Override
7468        protected Object filterToLabel(PackageParser.ServiceIntentInfo filter) {
7469            return filter.service;
7470        }
7471
7472        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7473            PackageParser.Service service = (PackageParser.Service)label;
7474            out.print(prefix); out.print(
7475                    Integer.toHexString(System.identityHashCode(service)));
7476                    out.print(' ');
7477                    service.printComponentShortName(out);
7478            if (count > 1) {
7479                out.print(" ("); out.print(count); out.print(" filters)");
7480            }
7481            out.println();
7482        }
7483
7484//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7485//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7486//            final List<ResolveInfo> retList = Lists.newArrayList();
7487//            while (i.hasNext()) {
7488//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7489//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7490//                    retList.add(resolveInfo);
7491//                }
7492//            }
7493//            return retList;
7494//        }
7495
7496        // Keys are String (activity class name), values are Activity.
7497        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7498                = new ArrayMap<ComponentName, PackageParser.Service>();
7499        private int mFlags;
7500    };
7501
7502    private final class ProviderIntentResolver
7503            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7504        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7505                boolean defaultOnly, int userId) {
7506            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7507            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7508        }
7509
7510        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7511                int userId) {
7512            if (!sUserManager.exists(userId))
7513                return null;
7514            mFlags = flags;
7515            return super.queryIntent(intent, resolvedType,
7516                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7517        }
7518
7519        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7520                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7521            if (!sUserManager.exists(userId))
7522                return null;
7523            if (packageProviders == null) {
7524                return null;
7525            }
7526            mFlags = flags;
7527            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7528            final int N = packageProviders.size();
7529            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7530                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7531
7532            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7533            for (int i = 0; i < N; ++i) {
7534                intentFilters = packageProviders.get(i).intents;
7535                if (intentFilters != null && intentFilters.size() > 0) {
7536                    PackageParser.ProviderIntentInfo[] array =
7537                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7538                    intentFilters.toArray(array);
7539                    listCut.add(array);
7540                }
7541            }
7542            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7543        }
7544
7545        public final void addProvider(PackageParser.Provider p) {
7546            if (mProviders.containsKey(p.getComponentName())) {
7547                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7548                return;
7549            }
7550
7551            mProviders.put(p.getComponentName(), p);
7552            if (DEBUG_SHOW_INFO) {
7553                Log.v(TAG, "  "
7554                        + (p.info.nonLocalizedLabel != null
7555                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7556                Log.v(TAG, "    Class=" + p.info.name);
7557            }
7558            final int NI = p.intents.size();
7559            int j;
7560            for (j = 0; j < NI; j++) {
7561                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7562                if (DEBUG_SHOW_INFO) {
7563                    Log.v(TAG, "    IntentFilter:");
7564                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7565                }
7566                if (!intent.debugCheck()) {
7567                    Log.w(TAG, "==> For Provider " + p.info.name);
7568                }
7569                addFilter(intent);
7570            }
7571        }
7572
7573        public final void removeProvider(PackageParser.Provider p) {
7574            mProviders.remove(p.getComponentName());
7575            if (DEBUG_SHOW_INFO) {
7576                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7577                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7578                Log.v(TAG, "    Class=" + p.info.name);
7579            }
7580            final int NI = p.intents.size();
7581            int j;
7582            for (j = 0; j < NI; j++) {
7583                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7584                if (DEBUG_SHOW_INFO) {
7585                    Log.v(TAG, "    IntentFilter:");
7586                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7587                }
7588                removeFilter(intent);
7589            }
7590        }
7591
7592        @Override
7593        protected boolean allowFilterResult(
7594                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7595            ProviderInfo filterPi = filter.provider.info;
7596            for (int i = dest.size() - 1; i >= 0; i--) {
7597                ProviderInfo destPi = dest.get(i).providerInfo;
7598                if (destPi.name == filterPi.name
7599                        && destPi.packageName == filterPi.packageName) {
7600                    return false;
7601                }
7602            }
7603            return true;
7604        }
7605
7606        @Override
7607        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7608            return new PackageParser.ProviderIntentInfo[size];
7609        }
7610
7611        @Override
7612        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7613            if (!sUserManager.exists(userId))
7614                return true;
7615            PackageParser.Package p = filter.provider.owner;
7616            if (p != null) {
7617                PackageSetting ps = (PackageSetting) p.mExtras;
7618                if (ps != null) {
7619                    // System apps are never considered stopped for purposes of
7620                    // filtering, because there may be no way for the user to
7621                    // actually re-launch them.
7622                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7623                            && ps.getStopped(userId);
7624                }
7625            }
7626            return false;
7627        }
7628
7629        @Override
7630        protected boolean isPackageForFilter(String packageName,
7631                PackageParser.ProviderIntentInfo info) {
7632            return packageName.equals(info.provider.owner.packageName);
7633        }
7634
7635        @Override
7636        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7637                int match, int userId) {
7638            if (!sUserManager.exists(userId))
7639                return null;
7640            final PackageParser.ProviderIntentInfo info = filter;
7641            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7642                return null;
7643            }
7644            final PackageParser.Provider provider = info.provider;
7645            if (mSafeMode && (provider.info.applicationInfo.flags
7646                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7647                return null;
7648            }
7649            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7650            if (ps == null) {
7651                return null;
7652            }
7653            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7654                    ps.readUserState(userId), userId);
7655            if (pi == null) {
7656                return null;
7657            }
7658            final ResolveInfo res = new ResolveInfo();
7659            res.providerInfo = pi;
7660            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7661                res.filter = filter;
7662            }
7663            res.priority = info.getPriority();
7664            res.preferredOrder = provider.owner.mPreferredOrder;
7665            res.match = match;
7666            res.isDefault = info.hasDefault;
7667            res.labelRes = info.labelRes;
7668            res.nonLocalizedLabel = info.nonLocalizedLabel;
7669            res.icon = info.icon;
7670            res.system = isSystemApp(res.providerInfo.applicationInfo);
7671            return res;
7672        }
7673
7674        @Override
7675        protected void sortResults(List<ResolveInfo> results) {
7676            Collections.sort(results, mResolvePrioritySorter);
7677        }
7678
7679        @Override
7680        protected void dumpFilter(PrintWriter out, String prefix,
7681                PackageParser.ProviderIntentInfo filter) {
7682            out.print(prefix);
7683            out.print(
7684                    Integer.toHexString(System.identityHashCode(filter.provider)));
7685            out.print(' ');
7686            filter.provider.printComponentShortName(out);
7687            out.print(" filter ");
7688            out.println(Integer.toHexString(System.identityHashCode(filter)));
7689        }
7690
7691        @Override
7692        protected Object filterToLabel(PackageParser.ProviderIntentInfo filter) {
7693            return filter.provider;
7694        }
7695
7696        protected void dumpFilterLabel(PrintWriter out, String prefix, Object label, int count) {
7697            PackageParser.Provider provider = (PackageParser.Provider)label;
7698            out.print(prefix); out.print(
7699                    Integer.toHexString(System.identityHashCode(provider)));
7700                    out.print(' ');
7701                    provider.printComponentShortName(out);
7702            if (count > 1) {
7703                out.print(" ("); out.print(count); out.print(" filters)");
7704            }
7705            out.println();
7706        }
7707
7708        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7709                = new ArrayMap<ComponentName, PackageParser.Provider>();
7710        private int mFlags;
7711    };
7712
7713    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7714            new Comparator<ResolveInfo>() {
7715        public int compare(ResolveInfo r1, ResolveInfo r2) {
7716            int v1 = r1.priority;
7717            int v2 = r2.priority;
7718            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7719            if (v1 != v2) {
7720                return (v1 > v2) ? -1 : 1;
7721            }
7722            v1 = r1.preferredOrder;
7723            v2 = r2.preferredOrder;
7724            if (v1 != v2) {
7725                return (v1 > v2) ? -1 : 1;
7726            }
7727            if (r1.isDefault != r2.isDefault) {
7728                return r1.isDefault ? -1 : 1;
7729            }
7730            v1 = r1.match;
7731            v2 = r2.match;
7732            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7733            if (v1 != v2) {
7734                return (v1 > v2) ? -1 : 1;
7735            }
7736            if (r1.system != r2.system) {
7737                return r1.system ? -1 : 1;
7738            }
7739            return 0;
7740        }
7741    };
7742
7743    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7744            new Comparator<ProviderInfo>() {
7745        public int compare(ProviderInfo p1, ProviderInfo p2) {
7746            final int v1 = p1.initOrder;
7747            final int v2 = p2.initOrder;
7748            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7749        }
7750    };
7751
7752    static final void sendPackageBroadcast(String action, String pkg,
7753            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7754            int[] userIds) {
7755        IActivityManager am = ActivityManagerNative.getDefault();
7756        if (am != null) {
7757            try {
7758                if (userIds == null) {
7759                    userIds = am.getRunningUserIds();
7760                }
7761                for (int id : userIds) {
7762                    final Intent intent = new Intent(action,
7763                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7764                    if (extras != null) {
7765                        intent.putExtras(extras);
7766                    }
7767                    if (targetPkg != null) {
7768                        intent.setPackage(targetPkg);
7769                    }
7770                    // Modify the UID when posting to other users
7771                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7772                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7773                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7774                        intent.putExtra(Intent.EXTRA_UID, uid);
7775                    }
7776                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7777                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7778                    if (DEBUG_BROADCASTS) {
7779                        RuntimeException here = new RuntimeException("here");
7780                        here.fillInStackTrace();
7781                        Slog.d(TAG, "Sending to user " + id + ": "
7782                                + intent.toShortString(false, true, false, false)
7783                                + " " + intent.getExtras(), here);
7784                    }
7785                    am.broadcastIntent(null, intent, null, finishedReceiver,
7786                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7787                            finishedReceiver != null, false, id);
7788                }
7789            } catch (RemoteException ex) {
7790            }
7791        }
7792    }
7793
7794    /**
7795     * Check if the external storage media is available. This is true if there
7796     * is a mounted external storage medium or if the external storage is
7797     * emulated.
7798     */
7799    private boolean isExternalMediaAvailable() {
7800        return mMediaMounted || Environment.isExternalStorageEmulated();
7801    }
7802
7803    @Override
7804    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7805        // writer
7806        synchronized (mPackages) {
7807            if (!isExternalMediaAvailable()) {
7808                // If the external storage is no longer mounted at this point,
7809                // the caller may not have been able to delete all of this
7810                // packages files and can not delete any more.  Bail.
7811                return null;
7812            }
7813            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7814            if (lastPackage != null) {
7815                pkgs.remove(lastPackage);
7816            }
7817            if (pkgs.size() > 0) {
7818                return pkgs.get(0);
7819            }
7820        }
7821        return null;
7822    }
7823
7824    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7825        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7826                userId, andCode ? 1 : 0, packageName);
7827        if (mSystemReady) {
7828            msg.sendToTarget();
7829        } else {
7830            if (mPostSystemReadyMessages == null) {
7831                mPostSystemReadyMessages = new ArrayList<>();
7832            }
7833            mPostSystemReadyMessages.add(msg);
7834        }
7835    }
7836
7837    void startCleaningPackages() {
7838        // reader
7839        synchronized (mPackages) {
7840            if (!isExternalMediaAvailable()) {
7841                return;
7842            }
7843            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7844                return;
7845            }
7846        }
7847        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7848        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7849        IActivityManager am = ActivityManagerNative.getDefault();
7850        if (am != null) {
7851            try {
7852                am.startService(null, intent, null, UserHandle.USER_OWNER);
7853            } catch (RemoteException e) {
7854            }
7855        }
7856    }
7857
7858    @Override
7859    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7860            int installFlags, String installerPackageName, VerificationParams verificationParams,
7861            String packageAbiOverride) {
7862        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7863                packageAbiOverride, UserHandle.getCallingUserId());
7864    }
7865
7866    @Override
7867    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7868            int installFlags, String installerPackageName, VerificationParams verificationParams,
7869            String packageAbiOverride, int userId) {
7870        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7871
7872        final int callingUid = Binder.getCallingUid();
7873        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7874
7875        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7876            try {
7877                if (observer != null) {
7878                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7879                }
7880            } catch (RemoteException re) {
7881            }
7882            return;
7883        }
7884
7885        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7886            installFlags |= PackageManager.INSTALL_FROM_ADB;
7887
7888        } else {
7889            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7890            // about installerPackageName.
7891
7892            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7893            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7894        }
7895
7896        UserHandle user;
7897        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7898            user = UserHandle.ALL;
7899        } else {
7900            user = new UserHandle(userId);
7901        }
7902
7903        verificationParams.setInstallerUid(callingUid);
7904
7905        final File originFile = new File(originPath);
7906        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7907
7908        final Message msg = mHandler.obtainMessage(INIT_COPY);
7909        msg.obj = new InstallParams(origin, observer, installFlags,
7910                installerPackageName, verificationParams, user, packageAbiOverride);
7911        mHandler.sendMessage(msg);
7912    }
7913
7914    void installStage(String packageName, File stagedDir, String stagedCid,
7915            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7916            String installerPackageName, int installerUid, UserHandle user) {
7917        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7918                params.referrerUri, installerUid, null);
7919
7920        final OriginInfo origin;
7921        if (stagedDir != null) {
7922            origin = OriginInfo.fromStagedFile(stagedDir);
7923        } else {
7924            origin = OriginInfo.fromStagedContainer(stagedCid);
7925        }
7926
7927        final Message msg = mHandler.obtainMessage(INIT_COPY);
7928        msg.obj = new InstallParams(origin, observer, params.installFlags,
7929                installerPackageName, verifParams, user, params.abiOverride);
7930        mHandler.sendMessage(msg);
7931    }
7932
7933    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7934        Bundle extras = new Bundle(1);
7935        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7936
7937        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7938                packageName, extras, null, null, new int[] {userId});
7939        try {
7940            IActivityManager am = ActivityManagerNative.getDefault();
7941            final boolean isSystem =
7942                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7943            if (isSystem && am.isUserRunning(userId, false)) {
7944                // The just-installed/enabled app is bundled on the system, so presumed
7945                // to be able to run automatically without needing an explicit launch.
7946                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7947                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7948                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7949                        .setPackage(packageName);
7950                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7951                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7952            }
7953        } catch (RemoteException e) {
7954            // shouldn't happen
7955            Slog.w(TAG, "Unable to bootstrap installed package", e);
7956        }
7957    }
7958
7959    @Override
7960    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7961            int userId) {
7962        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7963        PackageSetting pkgSetting;
7964        final int uid = Binder.getCallingUid();
7965        enforceCrossUserPermission(uid, userId, true, true,
7966                "setApplicationHiddenSetting for user " + userId);
7967
7968        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
7969            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
7970            return false;
7971        }
7972
7973        long callingId = Binder.clearCallingIdentity();
7974        try {
7975            boolean sendAdded = false;
7976            boolean sendRemoved = false;
7977            // writer
7978            synchronized (mPackages) {
7979                pkgSetting = mSettings.mPackages.get(packageName);
7980                if (pkgSetting == null) {
7981                    return false;
7982                }
7983                if (pkgSetting.getHidden(userId) != hidden) {
7984                    pkgSetting.setHidden(hidden, userId);
7985                    mSettings.writePackageRestrictionsLPr(userId);
7986                    if (hidden) {
7987                        sendRemoved = true;
7988                    } else {
7989                        sendAdded = true;
7990                    }
7991                }
7992            }
7993            if (sendAdded) {
7994                sendPackageAddedForUser(packageName, pkgSetting, userId);
7995                return true;
7996            }
7997            if (sendRemoved) {
7998                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
7999                        "hiding pkg");
8000                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8001            }
8002        } finally {
8003            Binder.restoreCallingIdentity(callingId);
8004        }
8005        return false;
8006    }
8007
8008    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8009            int userId) {
8010        final PackageRemovedInfo info = new PackageRemovedInfo();
8011        info.removedPackage = packageName;
8012        info.removedUsers = new int[] {userId};
8013        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8014        info.sendBroadcast(false, false, false);
8015    }
8016
8017    /**
8018     * Returns true if application is not found or there was an error. Otherwise it returns
8019     * the hidden state of the package for the given user.
8020     */
8021    @Override
8022    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8023        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8024        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8025                false, "getApplicationHidden for user " + userId);
8026        PackageSetting pkgSetting;
8027        long callingId = Binder.clearCallingIdentity();
8028        try {
8029            // writer
8030            synchronized (mPackages) {
8031                pkgSetting = mSettings.mPackages.get(packageName);
8032                if (pkgSetting == null) {
8033                    return true;
8034                }
8035                return pkgSetting.getHidden(userId);
8036            }
8037        } finally {
8038            Binder.restoreCallingIdentity(callingId);
8039        }
8040    }
8041
8042    /**
8043     * @hide
8044     */
8045    @Override
8046    public int installExistingPackageAsUser(String packageName, int userId) {
8047        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8048                null);
8049        PackageSetting pkgSetting;
8050        final int uid = Binder.getCallingUid();
8051        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8052                + userId);
8053        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8054            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8055        }
8056
8057        long callingId = Binder.clearCallingIdentity();
8058        try {
8059            boolean sendAdded = false;
8060            Bundle extras = new Bundle(1);
8061
8062            // writer
8063            synchronized (mPackages) {
8064                pkgSetting = mSettings.mPackages.get(packageName);
8065                if (pkgSetting == null) {
8066                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8067                }
8068                if (!pkgSetting.getInstalled(userId)) {
8069                    pkgSetting.setInstalled(true, userId);
8070                    pkgSetting.setHidden(false, userId);
8071                    mSettings.writePackageRestrictionsLPr(userId);
8072                    sendAdded = true;
8073                }
8074            }
8075
8076            if (sendAdded) {
8077                sendPackageAddedForUser(packageName, pkgSetting, userId);
8078            }
8079        } finally {
8080            Binder.restoreCallingIdentity(callingId);
8081        }
8082
8083        return PackageManager.INSTALL_SUCCEEDED;
8084    }
8085
8086    boolean isUserRestricted(int userId, String restrictionKey) {
8087        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8088        if (restrictions.getBoolean(restrictionKey, false)) {
8089            Log.w(TAG, "User is restricted: " + restrictionKey);
8090            return true;
8091        }
8092        return false;
8093    }
8094
8095    @Override
8096    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8097        mContext.enforceCallingOrSelfPermission(
8098                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8099                "Only package verification agents can verify applications");
8100
8101        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8102        final PackageVerificationResponse response = new PackageVerificationResponse(
8103                verificationCode, Binder.getCallingUid());
8104        msg.arg1 = id;
8105        msg.obj = response;
8106        mHandler.sendMessage(msg);
8107    }
8108
8109    @Override
8110    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8111            long millisecondsToDelay) {
8112        mContext.enforceCallingOrSelfPermission(
8113                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8114                "Only package verification agents can extend verification timeouts");
8115
8116        final PackageVerificationState state = mPendingVerification.get(id);
8117        final PackageVerificationResponse response = new PackageVerificationResponse(
8118                verificationCodeAtTimeout, Binder.getCallingUid());
8119
8120        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8121            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8122        }
8123        if (millisecondsToDelay < 0) {
8124            millisecondsToDelay = 0;
8125        }
8126        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8127                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8128            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8129        }
8130
8131        if ((state != null) && !state.timeoutExtended()) {
8132            state.extendTimeout();
8133
8134            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8135            msg.arg1 = id;
8136            msg.obj = response;
8137            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8138        }
8139    }
8140
8141    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8142            int verificationCode, UserHandle user) {
8143        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8144        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8145        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8146        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8147        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8148
8149        mContext.sendBroadcastAsUser(intent, user,
8150                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8151    }
8152
8153    private ComponentName matchComponentForVerifier(String packageName,
8154            List<ResolveInfo> receivers) {
8155        ActivityInfo targetReceiver = null;
8156
8157        final int NR = receivers.size();
8158        for (int i = 0; i < NR; i++) {
8159            final ResolveInfo info = receivers.get(i);
8160            if (info.activityInfo == null) {
8161                continue;
8162            }
8163
8164            if (packageName.equals(info.activityInfo.packageName)) {
8165                targetReceiver = info.activityInfo;
8166                break;
8167            }
8168        }
8169
8170        if (targetReceiver == null) {
8171            return null;
8172        }
8173
8174        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8175    }
8176
8177    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8178            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8179        if (pkgInfo.verifiers.length == 0) {
8180            return null;
8181        }
8182
8183        final int N = pkgInfo.verifiers.length;
8184        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8185        for (int i = 0; i < N; i++) {
8186            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8187
8188            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8189                    receivers);
8190            if (comp == null) {
8191                continue;
8192            }
8193
8194            final int verifierUid = getUidForVerifier(verifierInfo);
8195            if (verifierUid == -1) {
8196                continue;
8197            }
8198
8199            if (DEBUG_VERIFY) {
8200                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8201                        + " with the correct signature");
8202            }
8203            sufficientVerifiers.add(comp);
8204            verificationState.addSufficientVerifier(verifierUid);
8205        }
8206
8207        return sufficientVerifiers;
8208    }
8209
8210    private int getUidForVerifier(VerifierInfo verifierInfo) {
8211        synchronized (mPackages) {
8212            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8213            if (pkg == null) {
8214                return -1;
8215            } else if (pkg.mSignatures.length != 1) {
8216                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8217                        + " has more than one signature; ignoring");
8218                return -1;
8219            }
8220
8221            /*
8222             * If the public key of the package's signature does not match
8223             * our expected public key, then this is a different package and
8224             * we should skip.
8225             */
8226
8227            final byte[] expectedPublicKey;
8228            try {
8229                final Signature verifierSig = pkg.mSignatures[0];
8230                final PublicKey publicKey = verifierSig.getPublicKey();
8231                expectedPublicKey = publicKey.getEncoded();
8232            } catch (CertificateException e) {
8233                return -1;
8234            }
8235
8236            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8237
8238            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8239                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8240                        + " does not have the expected public key; ignoring");
8241                return -1;
8242            }
8243
8244            return pkg.applicationInfo.uid;
8245        }
8246    }
8247
8248    @Override
8249    public void finishPackageInstall(int token) {
8250        enforceSystemOrRoot("Only the system is allowed to finish installs");
8251
8252        if (DEBUG_INSTALL) {
8253            Slog.v(TAG, "BM finishing package install for " + token);
8254        }
8255
8256        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8257        mHandler.sendMessage(msg);
8258    }
8259
8260    /**
8261     * Get the verification agent timeout.
8262     *
8263     * @return verification timeout in milliseconds
8264     */
8265    private long getVerificationTimeout() {
8266        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8267                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8268                DEFAULT_VERIFICATION_TIMEOUT);
8269    }
8270
8271    /**
8272     * Get the default verification agent response code.
8273     *
8274     * @return default verification response code
8275     */
8276    private int getDefaultVerificationResponse() {
8277        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8278                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8279                DEFAULT_VERIFICATION_RESPONSE);
8280    }
8281
8282    /**
8283     * Check whether or not package verification has been enabled.
8284     *
8285     * @return true if verification should be performed
8286     */
8287    private boolean isVerificationEnabled(int userId, int installFlags) {
8288        if (!DEFAULT_VERIFY_ENABLE) {
8289            return false;
8290        }
8291
8292        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8293
8294        // Check if installing from ADB
8295        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8296            // Do not run verification in a test harness environment
8297            if (ActivityManager.isRunningInTestHarness()) {
8298                return false;
8299            }
8300            if (ensureVerifyAppsEnabled) {
8301                return true;
8302            }
8303            // Check if the developer does not want package verification for ADB installs
8304            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8305                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8306                return false;
8307            }
8308        }
8309
8310        if (ensureVerifyAppsEnabled) {
8311            return true;
8312        }
8313
8314        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8315                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8316    }
8317
8318    /**
8319     * Get the "allow unknown sources" setting.
8320     *
8321     * @return the current "allow unknown sources" setting
8322     */
8323    private int getUnknownSourcesSettings() {
8324        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8325                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8326                -1);
8327    }
8328
8329    @Override
8330    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8331        final int uid = Binder.getCallingUid();
8332        // writer
8333        synchronized (mPackages) {
8334            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8335            if (targetPackageSetting == null) {
8336                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8337            }
8338
8339            PackageSetting installerPackageSetting;
8340            if (installerPackageName != null) {
8341                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8342                if (installerPackageSetting == null) {
8343                    throw new IllegalArgumentException("Unknown installer package: "
8344                            + installerPackageName);
8345                }
8346            } else {
8347                installerPackageSetting = null;
8348            }
8349
8350            Signature[] callerSignature;
8351            Object obj = mSettings.getUserIdLPr(uid);
8352            if (obj != null) {
8353                if (obj instanceof SharedUserSetting) {
8354                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8355                } else if (obj instanceof PackageSetting) {
8356                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8357                } else {
8358                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8359                }
8360            } else {
8361                throw new SecurityException("Unknown calling uid " + uid);
8362            }
8363
8364            // Verify: can't set installerPackageName to a package that is
8365            // not signed with the same cert as the caller.
8366            if (installerPackageSetting != null) {
8367                if (compareSignatures(callerSignature,
8368                        installerPackageSetting.signatures.mSignatures)
8369                        != PackageManager.SIGNATURE_MATCH) {
8370                    throw new SecurityException(
8371                            "Caller does not have same cert as new installer package "
8372                            + installerPackageName);
8373                }
8374            }
8375
8376            // Verify: if target already has an installer package, it must
8377            // be signed with the same cert as the caller.
8378            if (targetPackageSetting.installerPackageName != null) {
8379                PackageSetting setting = mSettings.mPackages.get(
8380                        targetPackageSetting.installerPackageName);
8381                // If the currently set package isn't valid, then it's always
8382                // okay to change it.
8383                if (setting != null) {
8384                    if (compareSignatures(callerSignature,
8385                            setting.signatures.mSignatures)
8386                            != PackageManager.SIGNATURE_MATCH) {
8387                        throw new SecurityException(
8388                                "Caller does not have same cert as old installer package "
8389                                + targetPackageSetting.installerPackageName);
8390                    }
8391                }
8392            }
8393
8394            // Okay!
8395            targetPackageSetting.installerPackageName = installerPackageName;
8396            scheduleWriteSettingsLocked();
8397        }
8398    }
8399
8400    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8401        // Queue up an async operation since the package installation may take a little while.
8402        mHandler.post(new Runnable() {
8403            public void run() {
8404                mHandler.removeCallbacks(this);
8405                 // Result object to be returned
8406                PackageInstalledInfo res = new PackageInstalledInfo();
8407                res.returnCode = currentStatus;
8408                res.uid = -1;
8409                res.pkg = null;
8410                res.removedInfo = new PackageRemovedInfo();
8411                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8412                    args.doPreInstall(res.returnCode);
8413                    synchronized (mInstallLock) {
8414                        installPackageLI(args, res);
8415                    }
8416                    args.doPostInstall(res.returnCode, res.uid);
8417                }
8418
8419                // A restore should be performed at this point if (a) the install
8420                // succeeded, (b) the operation is not an update, and (c) the new
8421                // package has not opted out of backup participation.
8422                final boolean update = res.removedInfo.removedPackage != null;
8423                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8424                boolean doRestore = !update
8425                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8426
8427                // Set up the post-install work request bookkeeping.  This will be used
8428                // and cleaned up by the post-install event handling regardless of whether
8429                // there's a restore pass performed.  Token values are >= 1.
8430                int token;
8431                if (mNextInstallToken < 0) mNextInstallToken = 1;
8432                token = mNextInstallToken++;
8433
8434                PostInstallData data = new PostInstallData(args, res);
8435                mRunningInstalls.put(token, data);
8436                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8437
8438                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8439                    // Pass responsibility to the Backup Manager.  It will perform a
8440                    // restore if appropriate, then pass responsibility back to the
8441                    // Package Manager to run the post-install observer callbacks
8442                    // and broadcasts.
8443                    IBackupManager bm = IBackupManager.Stub.asInterface(
8444                            ServiceManager.getService(Context.BACKUP_SERVICE));
8445                    if (bm != null) {
8446                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8447                                + " to BM for possible restore");
8448                        try {
8449                            if (bm.isBackupServiceActive(UserHandle.USER_OWNER)) {
8450                                bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8451                            } else {
8452                                doRestore = false;
8453                            }
8454                        } catch (RemoteException e) {
8455                            // can't happen; the backup manager is local
8456                        } catch (Exception e) {
8457                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8458                            doRestore = false;
8459                        }
8460                    } else {
8461                        Slog.e(TAG, "Backup Manager not found!");
8462                        doRestore = false;
8463                    }
8464                }
8465
8466                if (!doRestore) {
8467                    // No restore possible, or the Backup Manager was mysteriously not
8468                    // available -- just fire the post-install work request directly.
8469                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8470                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8471                    mHandler.sendMessage(msg);
8472                }
8473            }
8474        });
8475    }
8476
8477    private abstract class HandlerParams {
8478        private static final int MAX_RETRIES = 4;
8479
8480        /**
8481         * Number of times startCopy() has been attempted and had a non-fatal
8482         * error.
8483         */
8484        private int mRetries = 0;
8485
8486        /** User handle for the user requesting the information or installation. */
8487        private final UserHandle mUser;
8488
8489        HandlerParams(UserHandle user) {
8490            mUser = user;
8491        }
8492
8493        UserHandle getUser() {
8494            return mUser;
8495        }
8496
8497        final boolean startCopy() {
8498            boolean res;
8499            try {
8500                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8501
8502                if (++mRetries > MAX_RETRIES) {
8503                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8504                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8505                    handleServiceError();
8506                    return false;
8507                } else {
8508                    handleStartCopy();
8509                    res = true;
8510                }
8511            } catch (RemoteException e) {
8512                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8513                mHandler.sendEmptyMessage(MCS_RECONNECT);
8514                res = false;
8515            }
8516            handleReturnCode();
8517            return res;
8518        }
8519
8520        final void serviceError() {
8521            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8522            handleServiceError();
8523            handleReturnCode();
8524        }
8525
8526        abstract void handleStartCopy() throws RemoteException;
8527        abstract void handleServiceError();
8528        abstract void handleReturnCode();
8529    }
8530
8531    class MeasureParams extends HandlerParams {
8532        private final PackageStats mStats;
8533        private boolean mSuccess;
8534
8535        private final IPackageStatsObserver mObserver;
8536
8537        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8538            super(new UserHandle(stats.userHandle));
8539            mObserver = observer;
8540            mStats = stats;
8541        }
8542
8543        @Override
8544        public String toString() {
8545            return "MeasureParams{"
8546                + Integer.toHexString(System.identityHashCode(this))
8547                + " " + mStats.packageName + "}";
8548        }
8549
8550        @Override
8551        void handleStartCopy() throws RemoteException {
8552            synchronized (mInstallLock) {
8553                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8554            }
8555
8556            if (mSuccess) {
8557                final boolean mounted;
8558                if (Environment.isExternalStorageEmulated()) {
8559                    mounted = true;
8560                } else {
8561                    final String status = Environment.getExternalStorageState();
8562                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8563                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8564                }
8565
8566                if (mounted) {
8567                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8568
8569                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8570                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8571
8572                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8573                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8574
8575                    // Always subtract cache size, since it's a subdirectory
8576                    mStats.externalDataSize -= mStats.externalCacheSize;
8577
8578                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8579                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8580
8581                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8582                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8583                }
8584            }
8585        }
8586
8587        @Override
8588        void handleReturnCode() {
8589            if (mObserver != null) {
8590                try {
8591                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8592                } catch (RemoteException e) {
8593                    Slog.i(TAG, "Observer no longer exists.");
8594                }
8595            }
8596        }
8597
8598        @Override
8599        void handleServiceError() {
8600            Slog.e(TAG, "Could not measure application " + mStats.packageName
8601                            + " external storage");
8602        }
8603    }
8604
8605    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8606            throws RemoteException {
8607        long result = 0;
8608        for (File path : paths) {
8609            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8610        }
8611        return result;
8612    }
8613
8614    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8615        for (File path : paths) {
8616            try {
8617                mcs.clearDirectory(path.getAbsolutePath());
8618            } catch (RemoteException e) {
8619            }
8620        }
8621    }
8622
8623    static class OriginInfo {
8624        /**
8625         * Location where install is coming from, before it has been
8626         * copied/renamed into place. This could be a single monolithic APK
8627         * file, or a cluster directory. This location may be untrusted.
8628         */
8629        final File file;
8630        final String cid;
8631
8632        /**
8633         * Flag indicating that {@link #file} or {@link #cid} has already been
8634         * staged, meaning downstream users don't need to defensively copy the
8635         * contents.
8636         */
8637        final boolean staged;
8638
8639        /**
8640         * Flag indicating that {@link #file} or {@link #cid} is an already
8641         * installed app that is being moved.
8642         */
8643        final boolean existing;
8644
8645        final String resolvedPath;
8646        final File resolvedFile;
8647
8648        static OriginInfo fromNothing() {
8649            return new OriginInfo(null, null, false, false);
8650        }
8651
8652        static OriginInfo fromUntrustedFile(File file) {
8653            return new OriginInfo(file, null, false, false);
8654        }
8655
8656        static OriginInfo fromExistingFile(File file) {
8657            return new OriginInfo(file, null, false, true);
8658        }
8659
8660        static OriginInfo fromStagedFile(File file) {
8661            return new OriginInfo(file, null, true, false);
8662        }
8663
8664        static OriginInfo fromStagedContainer(String cid) {
8665            return new OriginInfo(null, cid, true, false);
8666        }
8667
8668        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8669            this.file = file;
8670            this.cid = cid;
8671            this.staged = staged;
8672            this.existing = existing;
8673
8674            if (cid != null) {
8675                resolvedPath = PackageHelper.getSdDir(cid);
8676                resolvedFile = new File(resolvedPath);
8677            } else if (file != null) {
8678                resolvedPath = file.getAbsolutePath();
8679                resolvedFile = file;
8680            } else {
8681                resolvedPath = null;
8682                resolvedFile = null;
8683            }
8684        }
8685    }
8686
8687    class InstallParams extends HandlerParams {
8688        final OriginInfo origin;
8689        final IPackageInstallObserver2 observer;
8690        int installFlags;
8691        final String installerPackageName;
8692        final VerificationParams verificationParams;
8693        private InstallArgs mArgs;
8694        private int mRet;
8695        final String packageAbiOverride;
8696
8697        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8698                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8699                String packageAbiOverride) {
8700            super(user);
8701            this.origin = origin;
8702            this.observer = observer;
8703            this.installFlags = installFlags;
8704            this.installerPackageName = installerPackageName;
8705            this.verificationParams = verificationParams;
8706            this.packageAbiOverride = packageAbiOverride;
8707        }
8708
8709        @Override
8710        public String toString() {
8711            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8712                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8713        }
8714
8715        public ManifestDigest getManifestDigest() {
8716            if (verificationParams == null) {
8717                return null;
8718            }
8719            return verificationParams.getManifestDigest();
8720        }
8721
8722        private int installLocationPolicy(PackageInfoLite pkgLite) {
8723            String packageName = pkgLite.packageName;
8724            int installLocation = pkgLite.installLocation;
8725            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8726            // reader
8727            synchronized (mPackages) {
8728                PackageParser.Package pkg = mPackages.get(packageName);
8729                if (pkg != null) {
8730                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8731                        // Check for downgrading.
8732                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8733                            try {
8734                                checkDowngrade(pkg, pkgLite);
8735                            } catch (PackageManagerException e) {
8736                                Slog.w(TAG, "Downgrade detected: " + e.getMessage());
8737                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8738                            }
8739                        }
8740                        // Check for updated system application.
8741                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8742                            if (onSd) {
8743                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8744                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8745                            }
8746                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8747                        } else {
8748                            if (onSd) {
8749                                // Install flag overrides everything.
8750                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8751                            }
8752                            // If current upgrade specifies particular preference
8753                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8754                                // Application explicitly specified internal.
8755                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8756                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8757                                // App explictly prefers external. Let policy decide
8758                            } else {
8759                                // Prefer previous location
8760                                if (isExternal(pkg)) {
8761                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8762                                }
8763                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8764                            }
8765                        }
8766                    } else {
8767                        // Invalid install. Return error code
8768                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8769                    }
8770                }
8771            }
8772            // All the special cases have been taken care of.
8773            // Return result based on recommended install location.
8774            if (onSd) {
8775                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8776            }
8777            return pkgLite.recommendedInstallLocation;
8778        }
8779
8780        /*
8781         * Invoke remote method to get package information and install
8782         * location values. Override install location based on default
8783         * policy if needed and then create install arguments based
8784         * on the install location.
8785         */
8786        public void handleStartCopy() throws RemoteException {
8787            int ret = PackageManager.INSTALL_SUCCEEDED;
8788
8789            // If we're already staged, we've firmly committed to an install location
8790            if (origin.staged) {
8791                if (origin.file != null) {
8792                    installFlags |= PackageManager.INSTALL_INTERNAL;
8793                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8794                } else if (origin.cid != null) {
8795                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8796                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8797                } else {
8798                    throw new IllegalStateException("Invalid stage location");
8799                }
8800            }
8801
8802            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8803            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8804
8805            PackageInfoLite pkgLite = null;
8806
8807            if (onInt && onSd) {
8808                // Check if both bits are set.
8809                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8810                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8811            } else {
8812                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8813                        packageAbiOverride);
8814
8815                /*
8816                 * If we have too little free space, try to free cache
8817                 * before giving up.
8818                 */
8819                if (!origin.staged && pkgLite.recommendedInstallLocation
8820                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8821                    // TODO: focus freeing disk space on the target device
8822                    final StorageManager storage = StorageManager.from(mContext);
8823                    final long lowThreshold = storage.getStorageLowBytes(
8824                            Environment.getDataDirectory());
8825
8826                    final long sizeBytes = mContainerService.calculateInstalledSize(
8827                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8828
8829                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8830                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8831                                installFlags, packageAbiOverride);
8832                    }
8833
8834                    /*
8835                     * The cache free must have deleted the file we
8836                     * downloaded to install.
8837                     *
8838                     * TODO: fix the "freeCache" call to not delete
8839                     *       the file we care about.
8840                     */
8841                    if (pkgLite.recommendedInstallLocation
8842                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8843                        pkgLite.recommendedInstallLocation
8844                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8845                    }
8846                }
8847            }
8848
8849            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8850                int loc = pkgLite.recommendedInstallLocation;
8851                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8852                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8853                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8854                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8855                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8856                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8857                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8858                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8859                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8860                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8861                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8862                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8863                } else {
8864                    // Override with defaults if needed.
8865                    loc = installLocationPolicy(pkgLite);
8866                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8867                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8868                    } else if (!onSd && !onInt) {
8869                        // Override install location with flags
8870                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8871                            // Set the flag to install on external media.
8872                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8873                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8874                        } else {
8875                            // Make sure the flag for installing on external
8876                            // media is unset
8877                            installFlags |= PackageManager.INSTALL_INTERNAL;
8878                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8879                        }
8880                    }
8881                }
8882            }
8883
8884            final InstallArgs args = createInstallArgs(this);
8885            mArgs = args;
8886
8887            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8888                 /*
8889                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8890                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8891                 */
8892                int userIdentifier = getUser().getIdentifier();
8893                if (userIdentifier == UserHandle.USER_ALL
8894                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8895                    userIdentifier = UserHandle.USER_OWNER;
8896                }
8897
8898                /*
8899                 * Determine if we have any installed package verifiers. If we
8900                 * do, then we'll defer to them to verify the packages.
8901                 */
8902                final int requiredUid = mRequiredVerifierPackage == null ? -1
8903                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8904                if (!origin.existing && requiredUid != -1
8905                        && isVerificationEnabled(userIdentifier, installFlags)) {
8906                    final Intent verification = new Intent(
8907                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8908                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
8909                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8910                            PACKAGE_MIME_TYPE);
8911                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8912
8913                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8914                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8915                            0 /* TODO: Which userId? */);
8916
8917                    if (DEBUG_VERIFY) {
8918                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8919                                + verification.toString() + " with " + pkgLite.verifiers.length
8920                                + " optional verifiers");
8921                    }
8922
8923                    final int verificationId = mPendingVerificationToken++;
8924
8925                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8926
8927                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8928                            installerPackageName);
8929
8930                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8931                            installFlags);
8932
8933                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8934                            pkgLite.packageName);
8935
8936                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8937                            pkgLite.versionCode);
8938
8939                    if (verificationParams != null) {
8940                        if (verificationParams.getVerificationURI() != null) {
8941                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8942                                 verificationParams.getVerificationURI());
8943                        }
8944                        if (verificationParams.getOriginatingURI() != null) {
8945                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8946                                  verificationParams.getOriginatingURI());
8947                        }
8948                        if (verificationParams.getReferrer() != null) {
8949                            verification.putExtra(Intent.EXTRA_REFERRER,
8950                                  verificationParams.getReferrer());
8951                        }
8952                        if (verificationParams.getOriginatingUid() >= 0) {
8953                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8954                                  verificationParams.getOriginatingUid());
8955                        }
8956                        if (verificationParams.getInstallerUid() >= 0) {
8957                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8958                                  verificationParams.getInstallerUid());
8959                        }
8960                    }
8961
8962                    final PackageVerificationState verificationState = new PackageVerificationState(
8963                            requiredUid, args);
8964
8965                    mPendingVerification.append(verificationId, verificationState);
8966
8967                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8968                            receivers, verificationState);
8969
8970                    /*
8971                     * If any sufficient verifiers were listed in the package
8972                     * manifest, attempt to ask them.
8973                     */
8974                    if (sufficientVerifiers != null) {
8975                        final int N = sufficientVerifiers.size();
8976                        if (N == 0) {
8977                            Slog.i(TAG, "Additional verifiers required, but none installed.");
8978                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
8979                        } else {
8980                            for (int i = 0; i < N; i++) {
8981                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
8982
8983                                final Intent sufficientIntent = new Intent(verification);
8984                                sufficientIntent.setComponent(verifierComponent);
8985
8986                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
8987                            }
8988                        }
8989                    }
8990
8991                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
8992                            mRequiredVerifierPackage, receivers);
8993                    if (ret == PackageManager.INSTALL_SUCCEEDED
8994                            && mRequiredVerifierPackage != null) {
8995                        /*
8996                         * Send the intent to the required verification agent,
8997                         * but only start the verification timeout after the
8998                         * target BroadcastReceivers have run.
8999                         */
9000                        verification.setComponent(requiredVerifierComponent);
9001                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9002                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9003                                new BroadcastReceiver() {
9004                                    @Override
9005                                    public void onReceive(Context context, Intent intent) {
9006                                        final Message msg = mHandler
9007                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9008                                        msg.arg1 = verificationId;
9009                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9010                                    }
9011                                }, null, 0, null, null);
9012
9013                        /*
9014                         * We don't want the copy to proceed until verification
9015                         * succeeds, so null out this field.
9016                         */
9017                        mArgs = null;
9018                    }
9019                } else {
9020                    /*
9021                     * No package verification is enabled, so immediately start
9022                     * the remote call to initiate copy using temporary file.
9023                     */
9024                    ret = args.copyApk(mContainerService, true);
9025                }
9026            }
9027
9028            mRet = ret;
9029        }
9030
9031        @Override
9032        void handleReturnCode() {
9033            // If mArgs is null, then MCS couldn't be reached. When it
9034            // reconnects, it will try again to install. At that point, this
9035            // will succeed.
9036            if (mArgs != null) {
9037                processPendingInstall(mArgs, mRet);
9038            }
9039        }
9040
9041        @Override
9042        void handleServiceError() {
9043            mArgs = createInstallArgs(this);
9044            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9045        }
9046
9047        public boolean isForwardLocked() {
9048            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9049        }
9050    }
9051
9052    /**
9053     * Used during creation of InstallArgs
9054     *
9055     * @param installFlags package installation flags
9056     * @return true if should be installed on external storage
9057     */
9058    private static boolean installOnSd(int installFlags) {
9059        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9060            return false;
9061        }
9062        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9063            return true;
9064        }
9065        return false;
9066    }
9067
9068    /**
9069     * Used during creation of InstallArgs
9070     *
9071     * @param installFlags package installation flags
9072     * @return true if should be installed as forward locked
9073     */
9074    private static boolean installForwardLocked(int installFlags) {
9075        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9076    }
9077
9078    private InstallArgs createInstallArgs(InstallParams params) {
9079        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9080            return new AsecInstallArgs(params);
9081        } else {
9082            return new FileInstallArgs(params);
9083        }
9084    }
9085
9086    /**
9087     * Create args that describe an existing installed package. Typically used
9088     * when cleaning up old installs, or used as a move source.
9089     */
9090    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9091            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9092        final boolean isInAsec;
9093        if (installOnSd(installFlags)) {
9094            /* Apps on SD card are always in ASEC containers. */
9095            isInAsec = true;
9096        } else if (installForwardLocked(installFlags)
9097                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9098            /*
9099             * Forward-locked apps are only in ASEC containers if they're the
9100             * new style
9101             */
9102            isInAsec = true;
9103        } else {
9104            isInAsec = false;
9105        }
9106
9107        if (isInAsec) {
9108            return new AsecInstallArgs(codePath, instructionSets,
9109                    installOnSd(installFlags), installForwardLocked(installFlags));
9110        } else {
9111            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9112                    instructionSets);
9113        }
9114    }
9115
9116    static abstract class InstallArgs {
9117        /** @see InstallParams#origin */
9118        final OriginInfo origin;
9119
9120        final IPackageInstallObserver2 observer;
9121        // Always refers to PackageManager flags only
9122        final int installFlags;
9123        final String installerPackageName;
9124        final ManifestDigest manifestDigest;
9125        final UserHandle user;
9126        final String abiOverride;
9127
9128        // The list of instruction sets supported by this app. This is currently
9129        // only used during the rmdex() phase to clean up resources. We can get rid of this
9130        // if we move dex files under the common app path.
9131        /* nullable */ String[] instructionSets;
9132
9133        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9134                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9135                String[] instructionSets, String abiOverride) {
9136            this.origin = origin;
9137            this.installFlags = installFlags;
9138            this.observer = observer;
9139            this.installerPackageName = installerPackageName;
9140            this.manifestDigest = manifestDigest;
9141            this.user = user;
9142            this.instructionSets = instructionSets;
9143            this.abiOverride = abiOverride;
9144        }
9145
9146        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9147        abstract int doPreInstall(int status);
9148
9149        /**
9150         * Rename package into final resting place. All paths on the given
9151         * scanned package should be updated to reflect the rename.
9152         */
9153        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9154        abstract int doPostInstall(int status, int uid);
9155
9156        /** @see PackageSettingBase#codePathString */
9157        abstract String getCodePath();
9158        /** @see PackageSettingBase#resourcePathString */
9159        abstract String getResourcePath();
9160        abstract String getLegacyNativeLibraryPath();
9161
9162        // Need installer lock especially for dex file removal.
9163        abstract void cleanUpResourcesLI();
9164        abstract boolean doPostDeleteLI(boolean delete);
9165        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9166
9167        /**
9168         * Called before the source arguments are copied. This is used mostly
9169         * for MoveParams when it needs to read the source file to put it in the
9170         * destination.
9171         */
9172        int doPreCopy() {
9173            return PackageManager.INSTALL_SUCCEEDED;
9174        }
9175
9176        /**
9177         * Called after the source arguments are copied. This is used mostly for
9178         * MoveParams when it needs to read the source file to put it in the
9179         * destination.
9180         *
9181         * @return
9182         */
9183        int doPostCopy(int uid) {
9184            return PackageManager.INSTALL_SUCCEEDED;
9185        }
9186
9187        protected boolean isFwdLocked() {
9188            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9189        }
9190
9191        protected boolean isExternal() {
9192            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9193        }
9194
9195        UserHandle getUser() {
9196            return user;
9197        }
9198    }
9199
9200    private void removeDexFiles(List<String> allCodePaths, String[] instructionSets) {
9201        if (!allCodePaths.isEmpty()) {
9202            if (instructionSets == null) {
9203                throw new IllegalStateException("instructionSet == null");
9204            }
9205            String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9206            for (String codePath : allCodePaths) {
9207                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9208                    int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9209                    if (retCode < 0) {
9210                        Slog.w(TAG, "Couldn't remove dex file for package: "
9211                                + " at location " + codePath + ", retcode=" + retCode);
9212                        // we don't consider this to be a failure of the core package deletion
9213                    }
9214                }
9215            }
9216        }
9217    }
9218
9219    /**
9220     * Logic to handle installation of non-ASEC applications, including copying
9221     * and renaming logic.
9222     */
9223    class FileInstallArgs extends InstallArgs {
9224        private File codeFile;
9225        private File resourceFile;
9226        private File legacyNativeLibraryPath;
9227
9228        // Example topology:
9229        // /data/app/com.example/base.apk
9230        // /data/app/com.example/split_foo.apk
9231        // /data/app/com.example/lib/arm/libfoo.so
9232        // /data/app/com.example/lib/arm64/libfoo.so
9233        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9234
9235        /** New install */
9236        FileInstallArgs(InstallParams params) {
9237            super(params.origin, params.observer, params.installFlags,
9238                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9239                    null /* instruction sets */, params.packageAbiOverride);
9240            if (isFwdLocked()) {
9241                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9242            }
9243        }
9244
9245        /** Existing install */
9246        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9247                String[] instructionSets) {
9248            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9249            this.codeFile = (codePath != null) ? new File(codePath) : null;
9250            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9251            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9252                    new File(legacyNativeLibraryPath) : null;
9253        }
9254
9255        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9256            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9257                    isFwdLocked(), abiOverride);
9258
9259            final StorageManager storage = StorageManager.from(mContext);
9260            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9261        }
9262
9263        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9264            if (origin.staged) {
9265                Slog.d(TAG, origin.file + " already staged; skipping copy");
9266                codeFile = origin.file;
9267                resourceFile = origin.file;
9268                return PackageManager.INSTALL_SUCCEEDED;
9269            }
9270
9271            try {
9272                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9273                codeFile = tempDir;
9274                resourceFile = tempDir;
9275            } catch (IOException e) {
9276                Slog.w(TAG, "Failed to create copy file: " + e);
9277                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9278            }
9279
9280            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9281                @Override
9282                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9283                    if (!FileUtils.isValidExtFilename(name)) {
9284                        throw new IllegalArgumentException("Invalid filename: " + name);
9285                    }
9286                    try {
9287                        final File file = new File(codeFile, name);
9288                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9289                                O_RDWR | O_CREAT, 0644);
9290                        Os.chmod(file.getAbsolutePath(), 0644);
9291                        return new ParcelFileDescriptor(fd);
9292                    } catch (ErrnoException e) {
9293                        throw new RemoteException("Failed to open: " + e.getMessage());
9294                    }
9295                }
9296            };
9297
9298            int ret = PackageManager.INSTALL_SUCCEEDED;
9299            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9300            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9301                Slog.e(TAG, "Failed to copy package");
9302                return ret;
9303            }
9304
9305            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9306            NativeLibraryHelper.Handle handle = null;
9307            try {
9308                handle = NativeLibraryHelper.Handle.create(codeFile);
9309                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9310                        abiOverride);
9311            } catch (IOException e) {
9312                Slog.e(TAG, "Copying native libraries failed", e);
9313                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9314            } finally {
9315                IoUtils.closeQuietly(handle);
9316            }
9317
9318            return ret;
9319        }
9320
9321        int doPreInstall(int status) {
9322            if (status != PackageManager.INSTALL_SUCCEEDED) {
9323                cleanUp();
9324            }
9325            return status;
9326        }
9327
9328        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9329            if (status != PackageManager.INSTALL_SUCCEEDED) {
9330                cleanUp();
9331                return false;
9332            } else {
9333                final File beforeCodeFile = codeFile;
9334                final File afterCodeFile = getNextCodePath(pkg.packageName);
9335
9336                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9337                try {
9338                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9339                } catch (ErrnoException e) {
9340                    Slog.d(TAG, "Failed to rename", e);
9341                    return false;
9342                }
9343
9344                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9345                    Slog.d(TAG, "Failed to restorecon");
9346                    return false;
9347                }
9348
9349                // Reflect the rename internally
9350                codeFile = afterCodeFile;
9351                resourceFile = afterCodeFile;
9352
9353                // Reflect the rename in scanned details
9354                pkg.codePath = afterCodeFile.getAbsolutePath();
9355                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9356                        pkg.baseCodePath);
9357                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9358                        pkg.splitCodePaths);
9359
9360                // Reflect the rename in app info
9361                pkg.applicationInfo.setCodePath(pkg.codePath);
9362                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9363                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9364                pkg.applicationInfo.setResourcePath(pkg.codePath);
9365                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9366                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9367
9368                return true;
9369            }
9370        }
9371
9372        int doPostInstall(int status, int uid) {
9373            if (status != PackageManager.INSTALL_SUCCEEDED) {
9374                cleanUp();
9375            }
9376            return status;
9377        }
9378
9379        @Override
9380        String getCodePath() {
9381            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9382        }
9383
9384        @Override
9385        String getResourcePath() {
9386            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9387        }
9388
9389        @Override
9390        String getLegacyNativeLibraryPath() {
9391            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9392        }
9393
9394        private boolean cleanUp() {
9395            if (codeFile == null || !codeFile.exists()) {
9396                return false;
9397            }
9398
9399            if (codeFile.isDirectory()) {
9400                FileUtils.deleteContents(codeFile);
9401            }
9402            codeFile.delete();
9403
9404            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9405                resourceFile.delete();
9406            }
9407
9408            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9409                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9410                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9411                }
9412                legacyNativeLibraryPath.delete();
9413            }
9414
9415            return true;
9416        }
9417
9418        void cleanUpResourcesLI() {
9419            // Try enumerating all code paths before deleting
9420            List<String> allCodePaths = Collections.EMPTY_LIST;
9421            if (codeFile != null && codeFile.exists()) {
9422                try {
9423                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9424                    allCodePaths = pkg.getAllCodePaths();
9425                } catch (PackageParserException e) {
9426                    // Ignored; we tried our best
9427                }
9428            }
9429
9430            cleanUp();
9431            removeDexFiles(allCodePaths, instructionSets);
9432        }
9433
9434        boolean doPostDeleteLI(boolean delete) {
9435            // XXX err, shouldn't we respect the delete flag?
9436            cleanUpResourcesLI();
9437            return true;
9438        }
9439    }
9440
9441    private boolean isAsecExternal(String cid) {
9442        final String asecPath = PackageHelper.getSdFilesystem(cid);
9443        return !asecPath.startsWith(mAsecInternalPath);
9444    }
9445
9446    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9447            PackageManagerException {
9448        if (copyRet < 0) {
9449            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9450                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9451                throw new PackageManagerException(copyRet, message);
9452            }
9453        }
9454    }
9455
9456    /**
9457     * Extract the MountService "container ID" from the full code path of an
9458     * .apk.
9459     */
9460    static String cidFromCodePath(String fullCodePath) {
9461        int eidx = fullCodePath.lastIndexOf("/");
9462        String subStr1 = fullCodePath.substring(0, eidx);
9463        int sidx = subStr1.lastIndexOf("/");
9464        return subStr1.substring(sidx+1, eidx);
9465    }
9466
9467    /**
9468     * Logic to handle installation of ASEC applications, including copying and
9469     * renaming logic.
9470     */
9471    class AsecInstallArgs extends InstallArgs {
9472        static final String RES_FILE_NAME = "pkg.apk";
9473        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9474
9475        String cid;
9476        String packagePath;
9477        String resourcePath;
9478        String legacyNativeLibraryDir;
9479
9480        /** New install */
9481        AsecInstallArgs(InstallParams params) {
9482            super(params.origin, params.observer, params.installFlags,
9483                    params.installerPackageName, params.getManifestDigest(),
9484                    params.getUser(), null /* instruction sets */,
9485                    params.packageAbiOverride);
9486        }
9487
9488        /** Existing install */
9489        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9490                        boolean isExternal, boolean isForwardLocked) {
9491            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9492                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9493                    instructionSets, null);
9494            // Hackily pretend we're still looking at a full code path
9495            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9496                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9497            }
9498
9499            // Extract cid from fullCodePath
9500            int eidx = fullCodePath.lastIndexOf("/");
9501            String subStr1 = fullCodePath.substring(0, eidx);
9502            int sidx = subStr1.lastIndexOf("/");
9503            cid = subStr1.substring(sidx+1, eidx);
9504            setMountPath(subStr1);
9505        }
9506
9507        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9508            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9509                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9510                    instructionSets, null);
9511            this.cid = cid;
9512            setMountPath(PackageHelper.getSdDir(cid));
9513        }
9514
9515        void createCopyFile() {
9516            cid = mInstallerService.allocateExternalStageCidLegacy();
9517        }
9518
9519        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9520            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9521                    abiOverride);
9522
9523            final File target;
9524            if (isExternal()) {
9525                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9526            } else {
9527                target = Environment.getDataDirectory();
9528            }
9529
9530            final StorageManager storage = StorageManager.from(mContext);
9531            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9532        }
9533
9534        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9535            if (origin.staged) {
9536                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9537                cid = origin.cid;
9538                setMountPath(PackageHelper.getSdDir(cid));
9539                return PackageManager.INSTALL_SUCCEEDED;
9540            }
9541
9542            if (temp) {
9543                createCopyFile();
9544            } else {
9545                /*
9546                 * Pre-emptively destroy the container since it's destroyed if
9547                 * copying fails due to it existing anyway.
9548                 */
9549                PackageHelper.destroySdDir(cid);
9550            }
9551
9552            final String newMountPath = imcs.copyPackageToContainer(
9553                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9554                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9555
9556            if (newMountPath != null) {
9557                setMountPath(newMountPath);
9558                return PackageManager.INSTALL_SUCCEEDED;
9559            } else {
9560                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9561            }
9562        }
9563
9564        @Override
9565        String getCodePath() {
9566            return packagePath;
9567        }
9568
9569        @Override
9570        String getResourcePath() {
9571            return resourcePath;
9572        }
9573
9574        @Override
9575        String getLegacyNativeLibraryPath() {
9576            return legacyNativeLibraryDir;
9577        }
9578
9579        int doPreInstall(int status) {
9580            if (status != PackageManager.INSTALL_SUCCEEDED) {
9581                // Destroy container
9582                PackageHelper.destroySdDir(cid);
9583            } else {
9584                boolean mounted = PackageHelper.isContainerMounted(cid);
9585                if (!mounted) {
9586                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9587                            Process.SYSTEM_UID);
9588                    if (newMountPath != null) {
9589                        setMountPath(newMountPath);
9590                    } else {
9591                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9592                    }
9593                }
9594            }
9595            return status;
9596        }
9597
9598        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9599            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9600            String newMountPath = null;
9601            if (PackageHelper.isContainerMounted(cid)) {
9602                // Unmount the container
9603                if (!PackageHelper.unMountSdDir(cid)) {
9604                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9605                    return false;
9606                }
9607            }
9608            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9609                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9610                        " which might be stale. Will try to clean up.");
9611                // Clean up the stale container and proceed to recreate.
9612                if (!PackageHelper.destroySdDir(newCacheId)) {
9613                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9614                    return false;
9615                }
9616                // Successfully cleaned up stale container. Try to rename again.
9617                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9618                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9619                            + " inspite of cleaning it up.");
9620                    return false;
9621                }
9622            }
9623            if (!PackageHelper.isContainerMounted(newCacheId)) {
9624                Slog.w(TAG, "Mounting container " + newCacheId);
9625                newMountPath = PackageHelper.mountSdDir(newCacheId,
9626                        getEncryptKey(), Process.SYSTEM_UID);
9627            } else {
9628                newMountPath = PackageHelper.getSdDir(newCacheId);
9629            }
9630            if (newMountPath == null) {
9631                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9632                return false;
9633            }
9634            Log.i(TAG, "Succesfully renamed " + cid +
9635                    " to " + newCacheId +
9636                    " at new path: " + newMountPath);
9637            cid = newCacheId;
9638
9639            final File beforeCodeFile = new File(packagePath);
9640            setMountPath(newMountPath);
9641            final File afterCodeFile = new File(packagePath);
9642
9643            // Reflect the rename in scanned details
9644            pkg.codePath = afterCodeFile.getAbsolutePath();
9645            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9646                    pkg.baseCodePath);
9647            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9648                    pkg.splitCodePaths);
9649
9650            // Reflect the rename in app info
9651            pkg.applicationInfo.setCodePath(pkg.codePath);
9652            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9653            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9654            pkg.applicationInfo.setResourcePath(pkg.codePath);
9655            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9656            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9657
9658            return true;
9659        }
9660
9661        private void setMountPath(String mountPath) {
9662            final File mountFile = new File(mountPath);
9663
9664            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9665            if (monolithicFile.exists()) {
9666                packagePath = monolithicFile.getAbsolutePath();
9667                if (isFwdLocked()) {
9668                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9669                } else {
9670                    resourcePath = packagePath;
9671                }
9672            } else {
9673                packagePath = mountFile.getAbsolutePath();
9674                resourcePath = packagePath;
9675            }
9676
9677            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9678        }
9679
9680        int doPostInstall(int status, int uid) {
9681            if (status != PackageManager.INSTALL_SUCCEEDED) {
9682                cleanUp();
9683            } else {
9684                final int groupOwner;
9685                final String protectedFile;
9686                if (isFwdLocked()) {
9687                    groupOwner = UserHandle.getSharedAppGid(uid);
9688                    protectedFile = RES_FILE_NAME;
9689                } else {
9690                    groupOwner = -1;
9691                    protectedFile = null;
9692                }
9693
9694                if (uid < Process.FIRST_APPLICATION_UID
9695                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9696                    Slog.e(TAG, "Failed to finalize " + cid);
9697                    PackageHelper.destroySdDir(cid);
9698                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9699                }
9700
9701                boolean mounted = PackageHelper.isContainerMounted(cid);
9702                if (!mounted) {
9703                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9704                }
9705            }
9706            return status;
9707        }
9708
9709        private void cleanUp() {
9710            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9711
9712            // Destroy secure container
9713            PackageHelper.destroySdDir(cid);
9714        }
9715
9716        private List<String> getAllCodePaths() {
9717            final File codeFile = new File(getCodePath());
9718            if (codeFile != null && codeFile.exists()) {
9719                try {
9720                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9721                    return pkg.getAllCodePaths();
9722                } catch (PackageParserException e) {
9723                    // Ignored; we tried our best
9724                }
9725            }
9726            return Collections.EMPTY_LIST;
9727        }
9728
9729        void cleanUpResourcesLI() {
9730            // Enumerate all code paths before deleting
9731            cleanUpResourcesLI(getAllCodePaths());
9732        }
9733
9734        private void cleanUpResourcesLI(List<String> allCodePaths) {
9735            cleanUp();
9736            removeDexFiles(allCodePaths, instructionSets);
9737        }
9738
9739
9740
9741        String getPackageName() {
9742            return getAsecPackageName(cid);
9743        }
9744
9745        boolean doPostDeleteLI(boolean delete) {
9746            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9747            final List<String> allCodePaths = getAllCodePaths();
9748            boolean mounted = PackageHelper.isContainerMounted(cid);
9749            if (mounted) {
9750                // Unmount first
9751                if (PackageHelper.unMountSdDir(cid)) {
9752                    mounted = false;
9753                }
9754            }
9755            if (!mounted && delete) {
9756                cleanUpResourcesLI(allCodePaths);
9757            }
9758            return !mounted;
9759        }
9760
9761        @Override
9762        int doPreCopy() {
9763            if (isFwdLocked()) {
9764                if (!PackageHelper.fixSdPermissions(cid,
9765                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9766                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9767                }
9768            }
9769
9770            return PackageManager.INSTALL_SUCCEEDED;
9771        }
9772
9773        @Override
9774        int doPostCopy(int uid) {
9775            if (isFwdLocked()) {
9776                if (uid < Process.FIRST_APPLICATION_UID
9777                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9778                                RES_FILE_NAME)) {
9779                    Slog.e(TAG, "Failed to finalize " + cid);
9780                    PackageHelper.destroySdDir(cid);
9781                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9782                }
9783            }
9784
9785            return PackageManager.INSTALL_SUCCEEDED;
9786        }
9787    }
9788
9789    static String getAsecPackageName(String packageCid) {
9790        int idx = packageCid.lastIndexOf("-");
9791        if (idx == -1) {
9792            return packageCid;
9793        }
9794        return packageCid.substring(0, idx);
9795    }
9796
9797    // Utility method used to create code paths based on package name and available index.
9798    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9799        String idxStr = "";
9800        int idx = 1;
9801        // Fall back to default value of idx=1 if prefix is not
9802        // part of oldCodePath
9803        if (oldCodePath != null) {
9804            String subStr = oldCodePath;
9805            // Drop the suffix right away
9806            if (suffix != null && subStr.endsWith(suffix)) {
9807                subStr = subStr.substring(0, subStr.length() - suffix.length());
9808            }
9809            // If oldCodePath already contains prefix find out the
9810            // ending index to either increment or decrement.
9811            int sidx = subStr.lastIndexOf(prefix);
9812            if (sidx != -1) {
9813                subStr = subStr.substring(sidx + prefix.length());
9814                if (subStr != null) {
9815                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9816                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9817                    }
9818                    try {
9819                        idx = Integer.parseInt(subStr);
9820                        if (idx <= 1) {
9821                            idx++;
9822                        } else {
9823                            idx--;
9824                        }
9825                    } catch(NumberFormatException e) {
9826                    }
9827                }
9828            }
9829        }
9830        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9831        return prefix + idxStr;
9832    }
9833
9834    private File getNextCodePath(String packageName) {
9835        int suffix = 1;
9836        File result;
9837        do {
9838            result = new File(mAppInstallDir, packageName + "-" + suffix);
9839            suffix++;
9840        } while (result.exists());
9841        return result;
9842    }
9843
9844    // Utility method used to ignore ADD/REMOVE events
9845    // by directory observer.
9846    private static boolean ignoreCodePath(String fullPathStr) {
9847        String apkName = deriveCodePathName(fullPathStr);
9848        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9849        if (idx != -1 && ((idx+1) < apkName.length())) {
9850            // Make sure the package ends with a numeral
9851            String version = apkName.substring(idx+1);
9852            try {
9853                Integer.parseInt(version);
9854                return true;
9855            } catch (NumberFormatException e) {}
9856        }
9857        return false;
9858    }
9859
9860    // Utility method that returns the relative package path with respect
9861    // to the installation directory. Like say for /data/data/com.test-1.apk
9862    // string com.test-1 is returned.
9863    static String deriveCodePathName(String codePath) {
9864        if (codePath == null) {
9865            return null;
9866        }
9867        final File codeFile = new File(codePath);
9868        final String name = codeFile.getName();
9869        if (codeFile.isDirectory()) {
9870            return name;
9871        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9872            final int lastDot = name.lastIndexOf('.');
9873            return name.substring(0, lastDot);
9874        } else {
9875            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9876            return null;
9877        }
9878    }
9879
9880    class PackageInstalledInfo {
9881        String name;
9882        int uid;
9883        // The set of users that originally had this package installed.
9884        int[] origUsers;
9885        // The set of users that now have this package installed.
9886        int[] newUsers;
9887        PackageParser.Package pkg;
9888        int returnCode;
9889        String returnMsg;
9890        PackageRemovedInfo removedInfo;
9891
9892        public void setError(int code, String msg) {
9893            returnCode = code;
9894            returnMsg = msg;
9895            Slog.w(TAG, msg);
9896        }
9897
9898        public void setError(String msg, PackageParserException e) {
9899            returnCode = e.error;
9900            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9901            Slog.w(TAG, msg, e);
9902        }
9903
9904        public void setError(String msg, PackageManagerException e) {
9905            returnCode = e.error;
9906            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9907            Slog.w(TAG, msg, e);
9908        }
9909
9910        // In some error cases we want to convey more info back to the observer
9911        String origPackage;
9912        String origPermission;
9913    }
9914
9915    /*
9916     * Install a non-existing package.
9917     */
9918    private void installNewPackageLI(PackageParser.Package pkg,
9919            int parseFlags, int scanFlags, UserHandle user,
9920            String installerPackageName, PackageInstalledInfo res) {
9921        // Remember this for later, in case we need to rollback this install
9922        String pkgName = pkg.packageName;
9923
9924        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9925        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9926        synchronized(mPackages) {
9927            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9928                // A package with the same name is already installed, though
9929                // it has been renamed to an older name.  The package we
9930                // are trying to install should be installed as an update to
9931                // the existing one, but that has not been requested, so bail.
9932                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9933                        + " without first uninstalling package running as "
9934                        + mSettings.mRenamedPackages.get(pkgName));
9935                return;
9936            }
9937            if (mPackages.containsKey(pkgName)) {
9938                // Don't allow installation over an existing package with the same name.
9939                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9940                        + " without first uninstalling.");
9941                return;
9942            }
9943        }
9944
9945        try {
9946            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9947                    System.currentTimeMillis(), user);
9948
9949            updateSettingsLI(newPackage, installerPackageName, null, null, res, user);
9950            // delete the partially installed application. the data directory will have to be
9951            // restored if it was already existing
9952            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
9953                // remove package from internal structures.  Note that we want deletePackageX to
9954                // delete the package data and cache directories that it created in
9955                // scanPackageLocked, unless those directories existed before we even tried to
9956                // install.
9957                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
9958                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
9959                                res.removedInfo, true);
9960            }
9961
9962        } catch (PackageManagerException e) {
9963            res.setError("Package couldn't be installed in " + pkg.codePath, e);
9964        }
9965    }
9966
9967    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
9968        // Upgrade keysets are being used.  Determine if new package has a superset of the
9969        // required keys.
9970        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
9971        KeySetManagerService ksms = mSettings.mKeySetManagerService;
9972        for (int i = 0; i < upgradeKeySets.length; i++) {
9973            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
9974            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
9975                return true;
9976            }
9977        }
9978        return false;
9979    }
9980
9981    private void replacePackageLI(PackageParser.Package pkg,
9982            int parseFlags, int scanFlags, UserHandle user,
9983            String installerPackageName, PackageInstalledInfo res) {
9984        PackageParser.Package oldPackage;
9985        String pkgName = pkg.packageName;
9986        int[] allUsers;
9987        boolean[] perUserInstalled;
9988
9989        // First find the old package info and check signatures
9990        synchronized(mPackages) {
9991            oldPackage = mPackages.get(pkgName);
9992            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
9993            PackageSetting ps = mSettings.mPackages.get(pkgName);
9994            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
9995                // default to original signature matching
9996                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
9997                    != PackageManager.SIGNATURE_MATCH) {
9998                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
9999                            "New package has a different signature: " + pkgName);
10000                    return;
10001                }
10002            } else {
10003                if(!checkUpgradeKeySetLP(ps, pkg)) {
10004                    res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
10005                            "New package not signed by keys specified by upgrade-keysets: "
10006                            + pkgName);
10007                    return;
10008                }
10009            }
10010
10011            // In case of rollback, remember per-user/profile install state
10012            allUsers = sUserManager.getUserIds();
10013            perUserInstalled = new boolean[allUsers.length];
10014            for (int i = 0; i < allUsers.length; i++) {
10015                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10016            }
10017        }
10018
10019        boolean sysPkg = (isSystemApp(oldPackage));
10020        if (sysPkg) {
10021            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10022                    user, allUsers, perUserInstalled, installerPackageName, res);
10023        } else {
10024            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10025                    user, allUsers, perUserInstalled, installerPackageName, res);
10026        }
10027    }
10028
10029    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10030            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10031            int[] allUsers, boolean[] perUserInstalled,
10032            String installerPackageName, PackageInstalledInfo res) {
10033        String pkgName = deletedPackage.packageName;
10034        boolean deletedPkg = true;
10035        boolean updatedSettings = false;
10036
10037        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10038                + deletedPackage);
10039        long origUpdateTime;
10040        if (pkg.mExtras != null) {
10041            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10042        } else {
10043            origUpdateTime = 0;
10044        }
10045
10046        // First delete the existing package while retaining the data directory
10047        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10048                res.removedInfo, true)) {
10049            // If the existing package wasn't successfully deleted
10050            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10051            deletedPkg = false;
10052        } else {
10053            // Successfully deleted the old package; proceed with replace.
10054
10055            // If deleted package lived in a container, give users a chance to
10056            // relinquish resources before killing.
10057            if (deletedPackage.isForwardLocked() || isExternal(deletedPackage)) {
10058                if (DEBUG_INSTALL) {
10059                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10060                }
10061                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10062                final ArrayList<String> pkgList = new ArrayList<String>(1);
10063                pkgList.add(deletedPackage.applicationInfo.packageName);
10064                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10065            }
10066
10067            deleteCodeCacheDirsLI(pkgName);
10068            try {
10069                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10070                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10071                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res,
10072                        user);
10073                updatedSettings = true;
10074            } catch (PackageManagerException e) {
10075                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10076            }
10077        }
10078
10079        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10080            // remove package from internal structures.  Note that we want deletePackageX to
10081            // delete the package data and cache directories that it created in
10082            // scanPackageLocked, unless those directories existed before we even tried to
10083            // install.
10084            if(updatedSettings) {
10085                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10086                deletePackageLI(
10087                        pkgName, null, true, allUsers, perUserInstalled,
10088                        PackageManager.DELETE_KEEP_DATA,
10089                                res.removedInfo, true);
10090            }
10091            // Since we failed to install the new package we need to restore the old
10092            // package that we deleted.
10093            if (deletedPkg) {
10094                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10095                File restoreFile = new File(deletedPackage.codePath);
10096                // Parse old package
10097                boolean oldOnSd = isExternal(deletedPackage);
10098                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10099                        (deletedPackage.isForwardLocked() ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10100                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10101                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10102                try {
10103                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10104                } catch (PackageManagerException e) {
10105                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10106                            + e.getMessage());
10107                    return;
10108                }
10109                // Restore of old package succeeded. Update permissions.
10110                // writer
10111                synchronized (mPackages) {
10112                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10113                            UPDATE_PERMISSIONS_ALL);
10114                    // can downgrade to reader
10115                    mSettings.writeLPr();
10116                }
10117                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10118            }
10119        }
10120    }
10121
10122    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10123            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10124            int[] allUsers, boolean[] perUserInstalled,
10125            String installerPackageName, PackageInstalledInfo res) {
10126        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10127                + ", old=" + deletedPackage);
10128        boolean disabledSystem = false;
10129        boolean updatedSettings = false;
10130        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10131        if ((deletedPackage.applicationInfo.privateFlags&ApplicationInfo.PRIVATE_FLAG_PRIVILEGED)
10132                != 0) {
10133            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10134        }
10135        String packageName = deletedPackage.packageName;
10136        if (packageName == null) {
10137            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10138                    "Attempt to delete null packageName.");
10139            return;
10140        }
10141        PackageParser.Package oldPkg;
10142        PackageSetting oldPkgSetting;
10143        // reader
10144        synchronized (mPackages) {
10145            oldPkg = mPackages.get(packageName);
10146            oldPkgSetting = mSettings.mPackages.get(packageName);
10147            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10148                    (oldPkgSetting == null)) {
10149                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10150                        "Couldn't find package:" + packageName + " information");
10151                return;
10152            }
10153        }
10154
10155        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10156
10157        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10158        res.removedInfo.removedPackage = packageName;
10159        // Remove existing system package
10160        removePackageLI(oldPkgSetting, true);
10161        // writer
10162        synchronized (mPackages) {
10163            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10164            if (!disabledSystem && deletedPackage != null) {
10165                // We didn't need to disable the .apk as a current system package,
10166                // which means we are replacing another update that is already
10167                // installed.  We need to make sure to delete the older one's .apk.
10168                res.removedInfo.args = createInstallArgsForExisting(0,
10169                        deletedPackage.applicationInfo.getCodePath(),
10170                        deletedPackage.applicationInfo.getResourcePath(),
10171                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10172                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10173            } else {
10174                res.removedInfo.args = null;
10175            }
10176        }
10177
10178        // Successfully disabled the old package. Now proceed with re-installation
10179        deleteCodeCacheDirsLI(packageName);
10180
10181        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10182        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10183
10184        PackageParser.Package newPackage = null;
10185        try {
10186            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10187            if (newPackage.mExtras != null) {
10188                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10189                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10190                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10191
10192                // is the update attempting to change shared user? that isn't going to work...
10193                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10194                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10195                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10196                            + " to " + newPkgSetting.sharedUser);
10197                    updatedSettings = true;
10198                }
10199            }
10200
10201            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10202                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res,
10203                        user);
10204                updatedSettings = true;
10205            }
10206
10207        } catch (PackageManagerException e) {
10208            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10209        }
10210
10211        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10212            // Re installation failed. Restore old information
10213            // Remove new pkg information
10214            if (newPackage != null) {
10215                removeInstalledPackageLI(newPackage, true);
10216            }
10217            // Add back the old system package
10218            try {
10219                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10220            } catch (PackageManagerException e) {
10221                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10222            }
10223            // Restore the old system information in Settings
10224            synchronized (mPackages) {
10225                if (disabledSystem) {
10226                    mSettings.enableSystemPackageLPw(packageName);
10227                }
10228                if (updatedSettings) {
10229                    mSettings.setInstallerPackageName(packageName,
10230                            oldPkgSetting.installerPackageName);
10231                }
10232                mSettings.writeLPr();
10233            }
10234        }
10235    }
10236
10237    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10238            int[] allUsers, boolean[] perUserInstalled,
10239            PackageInstalledInfo res, UserHandle user) {
10240        String pkgName = newPackage.packageName;
10241        synchronized (mPackages) {
10242            //write settings. the installStatus will be incomplete at this stage.
10243            //note that the new package setting would have already been
10244            //added to mPackages. It hasn't been persisted yet.
10245            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10246            mSettings.writeLPr();
10247        }
10248
10249        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10250
10251        synchronized (mPackages) {
10252            updatePermissionsLPw(newPackage.packageName, newPackage,
10253                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10254                            ? UPDATE_PERMISSIONS_ALL : 0));
10255            // For system-bundled packages, we assume that installing an upgraded version
10256            // of the package implies that the user actually wants to run that new code,
10257            // so we enable the package.
10258            PackageSetting ps = mSettings.mPackages.get(pkgName);
10259            if (ps != null) {
10260                if (isSystemApp(newPackage)) {
10261                    // NB: implicit assumption that system package upgrades apply to all users
10262                    if (DEBUG_INSTALL) {
10263                        Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10264                    }
10265                    if (res.origUsers != null) {
10266                        for (int userHandle : res.origUsers) {
10267                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10268                                    userHandle, installerPackageName);
10269                        }
10270                    }
10271                    // Also convey the prior install/uninstall state
10272                    if (allUsers != null && perUserInstalled != null) {
10273                        for (int i = 0; i < allUsers.length; i++) {
10274                            if (DEBUG_INSTALL) {
10275                                Slog.d(TAG, "    user " + allUsers[i]
10276                                        + " => " + perUserInstalled[i]);
10277                            }
10278                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10279                        }
10280                        // these install state changes will be persisted in the
10281                        // upcoming call to mSettings.writeLPr().
10282                    }
10283                }
10284                // It's implied that when a user requests installation, they want the app to be
10285                // installed and enabled.
10286                int userId = user.getIdentifier();
10287                if (userId != UserHandle.USER_ALL) {
10288                    ps.setInstalled(true, userId);
10289                    ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT, userId, installerPackageName);
10290                }
10291            }
10292            res.name = pkgName;
10293            res.uid = newPackage.applicationInfo.uid;
10294            res.pkg = newPackage;
10295            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10296            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10297            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10298            //to update install status
10299            mSettings.writeLPr();
10300        }
10301    }
10302
10303    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10304        final int installFlags = args.installFlags;
10305        String installerPackageName = args.installerPackageName;
10306        File tmpPackageFile = new File(args.getCodePath());
10307        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10308        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10309        boolean replace = false;
10310        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10311        // Result object to be returned
10312        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10313
10314        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10315        // Retrieve PackageSettings and parse package
10316        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10317                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10318                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10319        PackageParser pp = new PackageParser();
10320        pp.setSeparateProcesses(mSeparateProcesses);
10321        pp.setDisplayMetrics(mMetrics);
10322
10323        final PackageParser.Package pkg;
10324        try {
10325            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10326        } catch (PackageParserException e) {
10327            res.setError("Failed parse during installPackageLI", e);
10328            return;
10329        }
10330
10331        // Mark that we have an install time CPU ABI override.
10332        pkg.cpuAbiOverride = args.abiOverride;
10333
10334        String pkgName = res.name = pkg.packageName;
10335        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10336            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10337                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10338                return;
10339            }
10340        }
10341
10342        try {
10343            pp.collectCertificates(pkg, parseFlags);
10344            pp.collectManifestDigest(pkg);
10345        } catch (PackageParserException e) {
10346            res.setError("Failed collect during installPackageLI", e);
10347            return;
10348        }
10349
10350        /* If the installer passed in a manifest digest, compare it now. */
10351        if (args.manifestDigest != null) {
10352            if (DEBUG_INSTALL) {
10353                final String parsedManifest = pkg.manifestDigest == null ? "null"
10354                        : pkg.manifestDigest.toString();
10355                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10356                        + parsedManifest);
10357            }
10358
10359            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10360                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10361                return;
10362            }
10363        } else if (DEBUG_INSTALL) {
10364            final String parsedManifest = pkg.manifestDigest == null
10365                    ? "null" : pkg.manifestDigest.toString();
10366            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10367        }
10368
10369        // Get rid of all references to package scan path via parser.
10370        pp = null;
10371        String oldCodePath = null;
10372        boolean systemApp = false;
10373        synchronized (mPackages) {
10374            // Check if installing already existing package
10375            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10376                String oldName = mSettings.mRenamedPackages.get(pkgName);
10377                if (pkg.mOriginalPackages != null
10378                        && pkg.mOriginalPackages.contains(oldName)
10379                        && mPackages.containsKey(oldName)) {
10380                    // This package is derived from an original package,
10381                    // and this device has been updating from that original
10382                    // name.  We must continue using the original name, so
10383                    // rename the new package here.
10384                    pkg.setPackageName(oldName);
10385                    pkgName = pkg.packageName;
10386                    replace = true;
10387                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10388                            + oldName + " pkgName=" + pkgName);
10389                } else if (mPackages.containsKey(pkgName)) {
10390                    // This package, under its official name, already exists
10391                    // on the device; we should replace it.
10392                    replace = true;
10393                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10394                }
10395            }
10396
10397            PackageSetting ps = mSettings.mPackages.get(pkgName);
10398            if (ps != null) {
10399                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10400
10401                // Quick sanity check that we're signed correctly if updating;
10402                // we'll check this again later when scanning, but we want to
10403                // bail early here before tripping over redefined permissions.
10404                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10405                    try {
10406                        verifySignaturesLP(ps, pkg);
10407                    } catch (PackageManagerException e) {
10408                        res.setError(e.error, e.getMessage());
10409                        return;
10410                    }
10411                } else {
10412                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10413                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10414                                + pkg.packageName + " upgrade keys do not match the "
10415                                + "previously installed version");
10416                        return;
10417                    }
10418                }
10419
10420                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10421                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10422                    systemApp = (ps.pkg.applicationInfo.flags &
10423                            ApplicationInfo.FLAG_SYSTEM) != 0;
10424                }
10425                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10426            }
10427
10428            // Check whether the newly-scanned package wants to define an already-defined perm
10429            int N = pkg.permissions.size();
10430            for (int i = N-1; i >= 0; i--) {
10431                PackageParser.Permission perm = pkg.permissions.get(i);
10432                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10433                if (bp != null) {
10434                    // If the defining package is signed with our cert, it's okay.  This
10435                    // also includes the "updating the same package" case, of course.
10436                    // "updating same package" could also involve key-rotation.
10437                    final boolean sigsOk;
10438                    if (!bp.sourcePackage.equals(pkg.packageName)
10439                            || !(bp.packageSetting instanceof PackageSetting)
10440                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10441                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10442                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10443                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10444                    } else {
10445                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10446                    }
10447                    if (!sigsOk) {
10448                        // If the owning package is the system itself, we log but allow
10449                        // install to proceed; we fail the install on all other permission
10450                        // redefinitions.
10451                        if (!bp.sourcePackage.equals("android")) {
10452                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10453                                    + pkg.packageName + " attempting to redeclare permission "
10454                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10455                            res.origPermission = perm.info.name;
10456                            res.origPackage = bp.sourcePackage;
10457                            return;
10458                        } else {
10459                            Slog.w(TAG, "Package " + pkg.packageName
10460                                    + " attempting to redeclare system permission "
10461                                    + perm.info.name + "; ignoring new declaration");
10462                            pkg.permissions.remove(i);
10463                        }
10464                    }
10465                }
10466            }
10467
10468        }
10469
10470        if (systemApp && onSd) {
10471            // Disable updates to system apps on sdcard
10472            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10473                    "Cannot install updates to system apps on sdcard");
10474            return;
10475        }
10476
10477        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10478            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10479            return;
10480        }
10481
10482        if (replace) {
10483            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10484                    installerPackageName, res);
10485        } else {
10486            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10487                    args.user, installerPackageName, res);
10488        }
10489        synchronized (mPackages) {
10490            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10491            if (ps != null) {
10492                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10493            }
10494        }
10495    }
10496
10497    private static boolean isMultiArch(PackageSetting ps) {
10498        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10499    }
10500
10501    private static boolean isMultiArch(ApplicationInfo info) {
10502        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10503    }
10504
10505    private static boolean isExternal(PackageParser.Package pkg) {
10506        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10507    }
10508
10509    private static boolean isExternal(PackageSetting ps) {
10510        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10511    }
10512
10513    private static boolean isExternal(ApplicationInfo info) {
10514        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10515    }
10516
10517    private static boolean isSystemApp(PackageParser.Package pkg) {
10518        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10519    }
10520
10521    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10522        return (pkg.applicationInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_PRIVILEGED) != 0;
10523    }
10524
10525    private static boolean isSystemApp(ApplicationInfo info) {
10526        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10527    }
10528
10529    private static boolean isSystemApp(PackageSetting ps) {
10530        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10531    }
10532
10533    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10534        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10535    }
10536
10537    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10538        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10539    }
10540
10541    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10542        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10543    }
10544
10545    private int packageFlagsToInstallFlags(PackageSetting ps) {
10546        int installFlags = 0;
10547        if (isExternal(ps)) {
10548            installFlags |= PackageManager.INSTALL_EXTERNAL;
10549        }
10550        if (ps.isForwardLocked()) {
10551            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10552        }
10553        return installFlags;
10554    }
10555
10556    private void deleteTempPackageFiles() {
10557        final FilenameFilter filter = new FilenameFilter() {
10558            public boolean accept(File dir, String name) {
10559                return name.startsWith("vmdl") && name.endsWith(".tmp");
10560            }
10561        };
10562        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10563            file.delete();
10564        }
10565    }
10566
10567    @Override
10568    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10569            int flags) {
10570        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10571                flags);
10572    }
10573
10574    @Override
10575    public void deletePackage(final String packageName,
10576            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10577        mContext.enforceCallingOrSelfPermission(
10578                android.Manifest.permission.DELETE_PACKAGES, null);
10579        final int uid = Binder.getCallingUid();
10580        if (UserHandle.getUserId(uid) != userId) {
10581            mContext.enforceCallingPermission(
10582                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10583                    "deletePackage for user " + userId);
10584        }
10585        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10586            try {
10587                observer.onPackageDeleted(packageName,
10588                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10589            } catch (RemoteException re) {
10590            }
10591            return;
10592        }
10593
10594        boolean uninstallBlocked = false;
10595        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10596            int[] users = sUserManager.getUserIds();
10597            for (int i = 0; i < users.length; ++i) {
10598                if (getBlockUninstallForUser(packageName, users[i])) {
10599                    uninstallBlocked = true;
10600                    break;
10601                }
10602            }
10603        } else {
10604            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10605        }
10606        if (uninstallBlocked) {
10607            try {
10608                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10609                        null);
10610            } catch (RemoteException re) {
10611            }
10612            return;
10613        }
10614
10615        if (DEBUG_REMOVE) {
10616            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10617        }
10618        // Queue up an async operation since the package deletion may take a little while.
10619        mHandler.post(new Runnable() {
10620            public void run() {
10621                mHandler.removeCallbacks(this);
10622                final int returnCode = deletePackageX(packageName, userId, flags);
10623                if (observer != null) {
10624                    try {
10625                        observer.onPackageDeleted(packageName, returnCode, null);
10626                    } catch (RemoteException e) {
10627                        Log.i(TAG, "Observer no longer exists.");
10628                    } //end catch
10629                } //end if
10630            } //end run
10631        });
10632    }
10633
10634    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10635        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10636                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10637        try {
10638            if (dpm != null) {
10639                if (dpm.isDeviceOwner(packageName)) {
10640                    return true;
10641                }
10642                int[] users;
10643                if (userId == UserHandle.USER_ALL) {
10644                    users = sUserManager.getUserIds();
10645                } else {
10646                    users = new int[]{userId};
10647                }
10648                for (int i = 0; i < users.length; ++i) {
10649                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10650                        return true;
10651                    }
10652                }
10653            }
10654        } catch (RemoteException e) {
10655        }
10656        return false;
10657    }
10658
10659    /**
10660     *  This method is an internal method that could be get invoked either
10661     *  to delete an installed package or to clean up a failed installation.
10662     *  After deleting an installed package, a broadcast is sent to notify any
10663     *  listeners that the package has been installed. For cleaning up a failed
10664     *  installation, the broadcast is not necessary since the package's
10665     *  installation wouldn't have sent the initial broadcast either
10666     *  The key steps in deleting a package are
10667     *  deleting the package information in internal structures like mPackages,
10668     *  deleting the packages base directories through installd
10669     *  updating mSettings to reflect current status
10670     *  persisting settings for later use
10671     *  sending a broadcast if necessary
10672     */
10673    private int deletePackageX(String packageName, int userId, int flags) {
10674        final PackageRemovedInfo info = new PackageRemovedInfo();
10675        final boolean res;
10676
10677        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10678                ? UserHandle.ALL : new UserHandle(userId);
10679
10680        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10681            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10682            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10683        }
10684
10685        boolean removedForAllUsers = false;
10686        boolean systemUpdate = false;
10687
10688        // for the uninstall-updates case and restricted profiles, remember the per-
10689        // userhandle installed state
10690        int[] allUsers;
10691        boolean[] perUserInstalled;
10692        synchronized (mPackages) {
10693            PackageSetting ps = mSettings.mPackages.get(packageName);
10694            allUsers = sUserManager.getUserIds();
10695            perUserInstalled = new boolean[allUsers.length];
10696            for (int i = 0; i < allUsers.length; i++) {
10697                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10698            }
10699        }
10700
10701        synchronized (mInstallLock) {
10702            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10703            res = deletePackageLI(packageName, removeForUser,
10704                    true, allUsers, perUserInstalled,
10705                    flags | REMOVE_CHATTY, info, true);
10706            systemUpdate = info.isRemovedPackageSystemUpdate;
10707            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10708                removedForAllUsers = true;
10709            }
10710            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10711                    + " removedForAllUsers=" + removedForAllUsers);
10712        }
10713
10714        if (res) {
10715            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10716
10717            // If the removed package was a system update, the old system package
10718            // was re-enabled; we need to broadcast this information
10719            if (systemUpdate) {
10720                Bundle extras = new Bundle(1);
10721                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10722                        ? info.removedAppId : info.uid);
10723                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10724
10725                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10726                        extras, null, null, null);
10727                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10728                        extras, null, null, null);
10729                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10730                        null, packageName, null, null);
10731            }
10732        }
10733        // Force a gc here.
10734        Runtime.getRuntime().gc();
10735        // Delete the resources here after sending the broadcast to let
10736        // other processes clean up before deleting resources.
10737        if (info.args != null) {
10738            synchronized (mInstallLock) {
10739                info.args.doPostDeleteLI(true);
10740            }
10741        }
10742
10743        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10744    }
10745
10746    static class PackageRemovedInfo {
10747        String removedPackage;
10748        int uid = -1;
10749        int removedAppId = -1;
10750        int[] removedUsers = null;
10751        boolean isRemovedPackageSystemUpdate = false;
10752        // Clean up resources deleted packages.
10753        InstallArgs args = null;
10754
10755        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10756            Bundle extras = new Bundle(1);
10757            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10758            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10759            if (replacing) {
10760                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10761            }
10762            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10763            if (removedPackage != null) {
10764                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10765                        extras, null, null, removedUsers);
10766                if (fullRemove && !replacing) {
10767                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10768                            extras, null, null, removedUsers);
10769                }
10770            }
10771            if (removedAppId >= 0) {
10772                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10773                        removedUsers);
10774            }
10775        }
10776    }
10777
10778    /*
10779     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10780     * flag is not set, the data directory is removed as well.
10781     * make sure this flag is set for partially installed apps. If not its meaningless to
10782     * delete a partially installed application.
10783     */
10784    private void removePackageDataLI(PackageSetting ps,
10785            int[] allUserHandles, boolean[] perUserInstalled,
10786            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10787        String packageName = ps.name;
10788        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10789        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10790        // Retrieve object to delete permissions for shared user later on
10791        final PackageSetting deletedPs;
10792        // reader
10793        synchronized (mPackages) {
10794            deletedPs = mSettings.mPackages.get(packageName);
10795            if (outInfo != null) {
10796                outInfo.removedPackage = packageName;
10797                outInfo.removedUsers = deletedPs != null
10798                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10799                        : null;
10800            }
10801        }
10802        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10803            removeDataDirsLI(packageName);
10804            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10805        }
10806        // writer
10807        synchronized (mPackages) {
10808            if (deletedPs != null) {
10809                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10810                    if (outInfo != null) {
10811                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10812                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10813                    }
10814                    if (deletedPs != null) {
10815                        updatePermissionsLPw(deletedPs.name, null, 0);
10816                        if (deletedPs.sharedUser != null) {
10817                            // remove permissions associated with package
10818                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10819                        }
10820                    }
10821                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10822                }
10823                // make sure to preserve per-user disabled state if this removal was just
10824                // a downgrade of a system app to the factory package
10825                if (allUserHandles != null && perUserInstalled != null) {
10826                    if (DEBUG_REMOVE) {
10827                        Slog.d(TAG, "Propagating install state across downgrade");
10828                    }
10829                    for (int i = 0; i < allUserHandles.length; i++) {
10830                        if (DEBUG_REMOVE) {
10831                            Slog.d(TAG, "    user " + allUserHandles[i]
10832                                    + " => " + perUserInstalled[i]);
10833                        }
10834                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10835                    }
10836                }
10837            }
10838            // can downgrade to reader
10839            if (writeSettings) {
10840                // Save settings now
10841                mSettings.writeLPr();
10842            }
10843        }
10844        if (outInfo != null) {
10845            // A user ID was deleted here. Go through all users and remove it
10846            // from KeyStore.
10847            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10848        }
10849    }
10850
10851    static boolean locationIsPrivileged(File path) {
10852        try {
10853            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10854                    .getCanonicalPath();
10855            return path.getCanonicalPath().startsWith(privilegedAppDir);
10856        } catch (IOException e) {
10857            Slog.e(TAG, "Unable to access code path " + path);
10858        }
10859        return false;
10860    }
10861
10862    /*
10863     * Tries to delete system package.
10864     */
10865    private boolean deleteSystemPackageLI(PackageSetting newPs,
10866            int[] allUserHandles, boolean[] perUserInstalled,
10867            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10868        final boolean applyUserRestrictions
10869                = (allUserHandles != null) && (perUserInstalled != null);
10870        PackageSetting disabledPs = null;
10871        // Confirm if the system package has been updated
10872        // An updated system app can be deleted. This will also have to restore
10873        // the system pkg from system partition
10874        // reader
10875        synchronized (mPackages) {
10876            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10877        }
10878        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10879                + " disabledPs=" + disabledPs);
10880        if (disabledPs == null) {
10881            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10882            return false;
10883        } else if (DEBUG_REMOVE) {
10884            Slog.d(TAG, "Deleting system pkg from data partition");
10885        }
10886        if (DEBUG_REMOVE) {
10887            if (applyUserRestrictions) {
10888                Slog.d(TAG, "Remembering install states:");
10889                for (int i = 0; i < allUserHandles.length; i++) {
10890                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10891                }
10892            }
10893        }
10894        // Delete the updated package
10895        outInfo.isRemovedPackageSystemUpdate = true;
10896        if (disabledPs.versionCode < newPs.versionCode) {
10897            // Delete data for downgrades
10898            flags &= ~PackageManager.DELETE_KEEP_DATA;
10899        } else {
10900            // Preserve data by setting flag
10901            flags |= PackageManager.DELETE_KEEP_DATA;
10902        }
10903        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10904                allUserHandles, perUserInstalled, outInfo, writeSettings);
10905        if (!ret) {
10906            return false;
10907        }
10908        // writer
10909        synchronized (mPackages) {
10910            // Reinstate the old system package
10911            mSettings.enableSystemPackageLPw(newPs.name);
10912            // Remove any native libraries from the upgraded package.
10913            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10914        }
10915        // Install the system package
10916        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10917        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10918        if (locationIsPrivileged(disabledPs.codePath)) {
10919            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10920        }
10921
10922        final PackageParser.Package newPkg;
10923        try {
10924            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10925        } catch (PackageManagerException e) {
10926            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10927            return false;
10928        }
10929
10930        // writer
10931        synchronized (mPackages) {
10932            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10933            updatePermissionsLPw(newPkg.packageName, newPkg,
10934                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10935            if (applyUserRestrictions) {
10936                if (DEBUG_REMOVE) {
10937                    Slog.d(TAG, "Propagating install state across reinstall");
10938                }
10939                for (int i = 0; i < allUserHandles.length; i++) {
10940                    if (DEBUG_REMOVE) {
10941                        Slog.d(TAG, "    user " + allUserHandles[i]
10942                                + " => " + perUserInstalled[i]);
10943                    }
10944                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10945                }
10946                // Regardless of writeSettings we need to ensure that this restriction
10947                // state propagation is persisted
10948                mSettings.writeAllUsersPackageRestrictionsLPr();
10949            }
10950            // can downgrade to reader here
10951            if (writeSettings) {
10952                mSettings.writeLPr();
10953            }
10954        }
10955        return true;
10956    }
10957
10958    private boolean deleteInstalledPackageLI(PackageSetting ps,
10959            boolean deleteCodeAndResources, int flags,
10960            int[] allUserHandles, boolean[] perUserInstalled,
10961            PackageRemovedInfo outInfo, boolean writeSettings) {
10962        if (outInfo != null) {
10963            outInfo.uid = ps.appId;
10964        }
10965
10966        // Delete package data from internal structures and also remove data if flag is set
10967        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10968
10969        // Delete application code and resources
10970        if (deleteCodeAndResources && (outInfo != null)) {
10971            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
10972                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
10973                    getAppDexInstructionSets(ps));
10974            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
10975        }
10976        return true;
10977    }
10978
10979    @Override
10980    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
10981            int userId) {
10982        mContext.enforceCallingOrSelfPermission(
10983                android.Manifest.permission.DELETE_PACKAGES, null);
10984        synchronized (mPackages) {
10985            PackageSetting ps = mSettings.mPackages.get(packageName);
10986            if (ps == null) {
10987                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
10988                return false;
10989            }
10990            if (!ps.getInstalled(userId)) {
10991                // Can't block uninstall for an app that is not installed or enabled.
10992                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
10993                return false;
10994            }
10995            ps.setBlockUninstall(blockUninstall, userId);
10996            mSettings.writePackageRestrictionsLPr(userId);
10997        }
10998        return true;
10999    }
11000
11001    @Override
11002    public boolean getBlockUninstallForUser(String packageName, int userId) {
11003        synchronized (mPackages) {
11004            PackageSetting ps = mSettings.mPackages.get(packageName);
11005            if (ps == null) {
11006                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11007                return false;
11008            }
11009            return ps.getBlockUninstall(userId);
11010        }
11011    }
11012
11013    /*
11014     * This method handles package deletion in general
11015     */
11016    private boolean deletePackageLI(String packageName, UserHandle user,
11017            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11018            int flags, PackageRemovedInfo outInfo,
11019            boolean writeSettings) {
11020        if (packageName == null) {
11021            Slog.w(TAG, "Attempt to delete null packageName.");
11022            return false;
11023        }
11024        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11025        PackageSetting ps;
11026        boolean dataOnly = false;
11027        int removeUser = -1;
11028        int appId = -1;
11029        synchronized (mPackages) {
11030            ps = mSettings.mPackages.get(packageName);
11031            if (ps == null) {
11032                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11033                return false;
11034            }
11035            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11036                    && user.getIdentifier() != UserHandle.USER_ALL) {
11037                // The caller is asking that the package only be deleted for a single
11038                // user.  To do this, we just mark its uninstalled state and delete
11039                // its data.  If this is a system app, we only allow this to happen if
11040                // they have set the special DELETE_SYSTEM_APP which requests different
11041                // semantics than normal for uninstalling system apps.
11042                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11043                ps.setUserState(user.getIdentifier(),
11044                        COMPONENT_ENABLED_STATE_DEFAULT,
11045                        false, //installed
11046                        true,  //stopped
11047                        true,  //notLaunched
11048                        false, //hidden
11049                        null, null, null,
11050                        false // blockUninstall
11051                        );
11052                if (!isSystemApp(ps)) {
11053                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11054                        // Other user still have this package installed, so all
11055                        // we need to do is clear this user's data and save that
11056                        // it is uninstalled.
11057                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11058                        removeUser = user.getIdentifier();
11059                        appId = ps.appId;
11060                        mSettings.writePackageRestrictionsLPr(removeUser);
11061                    } else {
11062                        // We need to set it back to 'installed' so the uninstall
11063                        // broadcasts will be sent correctly.
11064                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11065                        ps.setInstalled(true, user.getIdentifier());
11066                    }
11067                } else {
11068                    // This is a system app, so we assume that the
11069                    // other users still have this package installed, so all
11070                    // we need to do is clear this user's data and save that
11071                    // it is uninstalled.
11072                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11073                    removeUser = user.getIdentifier();
11074                    appId = ps.appId;
11075                    mSettings.writePackageRestrictionsLPr(removeUser);
11076                }
11077            }
11078        }
11079
11080        if (removeUser >= 0) {
11081            // From above, we determined that we are deleting this only
11082            // for a single user.  Continue the work here.
11083            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11084            if (outInfo != null) {
11085                outInfo.removedPackage = packageName;
11086                outInfo.removedAppId = appId;
11087                outInfo.removedUsers = new int[] {removeUser};
11088            }
11089            mInstaller.clearUserData(packageName, removeUser);
11090            removeKeystoreDataIfNeeded(removeUser, appId);
11091            schedulePackageCleaning(packageName, removeUser, false);
11092            return true;
11093        }
11094
11095        if (dataOnly) {
11096            // Delete application data first
11097            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11098            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11099            return true;
11100        }
11101
11102        boolean ret = false;
11103        if (isSystemApp(ps)) {
11104            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11105            // When an updated system application is deleted we delete the existing resources as well and
11106            // fall back to existing code in system partition
11107            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11108                    flags, outInfo, writeSettings);
11109        } else {
11110            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11111            // Kill application pre-emptively especially for apps on sd.
11112            killApplication(packageName, ps.appId, "uninstall pkg");
11113            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11114                    allUserHandles, perUserInstalled,
11115                    outInfo, writeSettings);
11116        }
11117
11118        return ret;
11119    }
11120
11121    private final class ClearStorageConnection implements ServiceConnection {
11122        IMediaContainerService mContainerService;
11123
11124        @Override
11125        public void onServiceConnected(ComponentName name, IBinder service) {
11126            synchronized (this) {
11127                mContainerService = IMediaContainerService.Stub.asInterface(service);
11128                notifyAll();
11129            }
11130        }
11131
11132        @Override
11133        public void onServiceDisconnected(ComponentName name) {
11134        }
11135    }
11136
11137    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11138        final boolean mounted;
11139        if (Environment.isExternalStorageEmulated()) {
11140            mounted = true;
11141        } else {
11142            final String status = Environment.getExternalStorageState();
11143
11144            mounted = status.equals(Environment.MEDIA_MOUNTED)
11145                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11146        }
11147
11148        if (!mounted) {
11149            return;
11150        }
11151
11152        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11153        int[] users;
11154        if (userId == UserHandle.USER_ALL) {
11155            users = sUserManager.getUserIds();
11156        } else {
11157            users = new int[] { userId };
11158        }
11159        final ClearStorageConnection conn = new ClearStorageConnection();
11160        if (mContext.bindServiceAsUser(
11161                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11162            try {
11163                for (int curUser : users) {
11164                    long timeout = SystemClock.uptimeMillis() + 5000;
11165                    synchronized (conn) {
11166                        long now = SystemClock.uptimeMillis();
11167                        while (conn.mContainerService == null && now < timeout) {
11168                            try {
11169                                conn.wait(timeout - now);
11170                            } catch (InterruptedException e) {
11171                            }
11172                        }
11173                    }
11174                    if (conn.mContainerService == null) {
11175                        return;
11176                    }
11177
11178                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11179                    clearDirectory(conn.mContainerService,
11180                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11181                    if (allData) {
11182                        clearDirectory(conn.mContainerService,
11183                                userEnv.buildExternalStorageAppDataDirs(packageName));
11184                        clearDirectory(conn.mContainerService,
11185                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11186                    }
11187                }
11188            } finally {
11189                mContext.unbindService(conn);
11190            }
11191        }
11192    }
11193
11194    @Override
11195    public void clearApplicationUserData(final String packageName,
11196            final IPackageDataObserver observer, final int userId) {
11197        mContext.enforceCallingOrSelfPermission(
11198                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11199        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11200        // Queue up an async operation since the package deletion may take a little while.
11201        mHandler.post(new Runnable() {
11202            public void run() {
11203                mHandler.removeCallbacks(this);
11204                final boolean succeeded;
11205                synchronized (mInstallLock) {
11206                    succeeded = clearApplicationUserDataLI(packageName, userId);
11207                }
11208                clearExternalStorageDataSync(packageName, userId, true);
11209                if (succeeded) {
11210                    // invoke DeviceStorageMonitor's update method to clear any notifications
11211                    DeviceStorageMonitorInternal
11212                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11213                    if (dsm != null) {
11214                        dsm.checkMemory();
11215                    }
11216                }
11217                if(observer != null) {
11218                    try {
11219                        observer.onRemoveCompleted(packageName, succeeded);
11220                    } catch (RemoteException e) {
11221                        Log.i(TAG, "Observer no longer exists.");
11222                    }
11223                } //end if observer
11224            } //end run
11225        });
11226    }
11227
11228    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11229        if (packageName == null) {
11230            Slog.w(TAG, "Attempt to delete null packageName.");
11231            return false;
11232        }
11233
11234        // Try finding details about the requested package
11235        PackageParser.Package pkg;
11236        synchronized (mPackages) {
11237            pkg = mPackages.get(packageName);
11238            if (pkg == null) {
11239                final PackageSetting ps = mSettings.mPackages.get(packageName);
11240                if (ps != null) {
11241                    pkg = ps.pkg;
11242                }
11243            }
11244        }
11245
11246        if (pkg == null) {
11247            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11248        }
11249
11250        // Always delete data directories for package, even if we found no other
11251        // record of app. This helps users recover from UID mismatches without
11252        // resorting to a full data wipe.
11253        int retCode = mInstaller.clearUserData(packageName, userId);
11254        if (retCode < 0) {
11255            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11256            return false;
11257        }
11258
11259        if (pkg == null) {
11260            return false;
11261        }
11262
11263        if (pkg != null && pkg.applicationInfo != null) {
11264            final int appId = pkg.applicationInfo.uid;
11265            removeKeystoreDataIfNeeded(userId, appId);
11266        }
11267
11268        // Create a native library symlink only if we have native libraries
11269        // and if the native libraries are 32 bit libraries. We do not provide
11270        // this symlink for 64 bit libraries.
11271        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11272                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11273            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11274            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11275                Slog.w(TAG, "Failed linking native library dir");
11276                return false;
11277            }
11278        }
11279
11280        return true;
11281    }
11282
11283    /**
11284     * Remove entries from the keystore daemon. Will only remove it if the
11285     * {@code appId} is valid.
11286     */
11287    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11288        if (appId < 0) {
11289            return;
11290        }
11291
11292        final KeyStore keyStore = KeyStore.getInstance();
11293        if (keyStore != null) {
11294            if (userId == UserHandle.USER_ALL) {
11295                for (final int individual : sUserManager.getUserIds()) {
11296                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11297                }
11298            } else {
11299                keyStore.clearUid(UserHandle.getUid(userId, appId));
11300            }
11301        } else {
11302            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11303        }
11304    }
11305
11306    @Override
11307    public void deleteApplicationCacheFiles(final String packageName,
11308            final IPackageDataObserver observer) {
11309        mContext.enforceCallingOrSelfPermission(
11310                android.Manifest.permission.DELETE_CACHE_FILES, null);
11311        // Queue up an async operation since the package deletion may take a little while.
11312        final int userId = UserHandle.getCallingUserId();
11313        mHandler.post(new Runnable() {
11314            public void run() {
11315                mHandler.removeCallbacks(this);
11316                final boolean succeded;
11317                synchronized (mInstallLock) {
11318                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11319                }
11320                clearExternalStorageDataSync(packageName, userId, false);
11321                if(observer != null) {
11322                    try {
11323                        observer.onRemoveCompleted(packageName, succeded);
11324                    } catch (RemoteException e) {
11325                        Log.i(TAG, "Observer no longer exists.");
11326                    }
11327                } //end if observer
11328            } //end run
11329        });
11330    }
11331
11332    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11333        if (packageName == null) {
11334            Slog.w(TAG, "Attempt to delete null packageName.");
11335            return false;
11336        }
11337        PackageParser.Package p;
11338        synchronized (mPackages) {
11339            p = mPackages.get(packageName);
11340        }
11341        if (p == null) {
11342            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11343            return false;
11344        }
11345        final ApplicationInfo applicationInfo = p.applicationInfo;
11346        if (applicationInfo == null) {
11347            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11348            return false;
11349        }
11350        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11351        if (retCode < 0) {
11352            Slog.w(TAG, "Couldn't remove cache files for package: "
11353                       + packageName + " u" + userId);
11354            return false;
11355        }
11356        return true;
11357    }
11358
11359    @Override
11360    public void getPackageSizeInfo(final String packageName, int userHandle,
11361            final IPackageStatsObserver observer) {
11362        mContext.enforceCallingOrSelfPermission(
11363                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11364        if (packageName == null) {
11365            throw new IllegalArgumentException("Attempt to get size of null packageName");
11366        }
11367
11368        PackageStats stats = new PackageStats(packageName, userHandle);
11369
11370        /*
11371         * Queue up an async operation since the package measurement may take a
11372         * little while.
11373         */
11374        Message msg = mHandler.obtainMessage(INIT_COPY);
11375        msg.obj = new MeasureParams(stats, observer);
11376        mHandler.sendMessage(msg);
11377    }
11378
11379    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11380            PackageStats pStats) {
11381        if (packageName == null) {
11382            Slog.w(TAG, "Attempt to get size of null packageName.");
11383            return false;
11384        }
11385        PackageParser.Package p;
11386        boolean dataOnly = false;
11387        String libDirRoot = null;
11388        String asecPath = null;
11389        PackageSetting ps = null;
11390        synchronized (mPackages) {
11391            p = mPackages.get(packageName);
11392            ps = mSettings.mPackages.get(packageName);
11393            if(p == null) {
11394                dataOnly = true;
11395                if((ps == null) || (ps.pkg == null)) {
11396                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11397                    return false;
11398                }
11399                p = ps.pkg;
11400            }
11401            if (ps != null) {
11402                libDirRoot = ps.legacyNativeLibraryPathString;
11403            }
11404            if (p != null && (isExternal(p) || p.isForwardLocked())) {
11405                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11406                if (secureContainerId != null) {
11407                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11408                }
11409            }
11410        }
11411        String publicSrcDir = null;
11412        if(!dataOnly) {
11413            final ApplicationInfo applicationInfo = p.applicationInfo;
11414            if (applicationInfo == null) {
11415                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11416                return false;
11417            }
11418            if (p.isForwardLocked()) {
11419                publicSrcDir = applicationInfo.getBaseResourcePath();
11420            }
11421        }
11422        // TODO: extend to measure size of split APKs
11423        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11424        // not just the first level.
11425        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11426        // just the primary.
11427        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11428        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11429                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11430        if (res < 0) {
11431            return false;
11432        }
11433
11434        // Fix-up for forward-locked applications in ASEC containers.
11435        if (!isExternal(p)) {
11436            pStats.codeSize += pStats.externalCodeSize;
11437            pStats.externalCodeSize = 0L;
11438        }
11439
11440        return true;
11441    }
11442
11443
11444    @Override
11445    public void addPackageToPreferred(String packageName) {
11446        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11447    }
11448
11449    @Override
11450    public void removePackageFromPreferred(String packageName) {
11451        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11452    }
11453
11454    @Override
11455    public List<PackageInfo> getPreferredPackages(int flags) {
11456        return new ArrayList<PackageInfo>();
11457    }
11458
11459    private int getUidTargetSdkVersionLockedLPr(int uid) {
11460        Object obj = mSettings.getUserIdLPr(uid);
11461        if (obj instanceof SharedUserSetting) {
11462            final SharedUserSetting sus = (SharedUserSetting) obj;
11463            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11464            final Iterator<PackageSetting> it = sus.packages.iterator();
11465            while (it.hasNext()) {
11466                final PackageSetting ps = it.next();
11467                if (ps.pkg != null) {
11468                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11469                    if (v < vers) vers = v;
11470                }
11471            }
11472            return vers;
11473        } else if (obj instanceof PackageSetting) {
11474            final PackageSetting ps = (PackageSetting) obj;
11475            if (ps.pkg != null) {
11476                return ps.pkg.applicationInfo.targetSdkVersion;
11477            }
11478        }
11479        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11480    }
11481
11482    @Override
11483    public void addPreferredActivity(IntentFilter filter, int match,
11484            ComponentName[] set, ComponentName activity, int userId) {
11485        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11486                "Adding preferred");
11487    }
11488
11489    private void addPreferredActivityInternal(IntentFilter filter, int match,
11490            ComponentName[] set, ComponentName activity, boolean always, int userId,
11491            String opname) {
11492        // writer
11493        int callingUid = Binder.getCallingUid();
11494        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11495        if (filter.countActions() == 0) {
11496            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11497            return;
11498        }
11499        synchronized (mPackages) {
11500            if (mContext.checkCallingOrSelfPermission(
11501                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11502                    != PackageManager.PERMISSION_GRANTED) {
11503                if (getUidTargetSdkVersionLockedLPr(callingUid)
11504                        < Build.VERSION_CODES.FROYO) {
11505                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11506                            + callingUid);
11507                    return;
11508                }
11509                mContext.enforceCallingOrSelfPermission(
11510                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11511            }
11512
11513            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11514            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11515                    + userId + ":");
11516            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11517            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11518            scheduleWritePackageRestrictionsLocked(userId);
11519        }
11520    }
11521
11522    @Override
11523    public void replacePreferredActivity(IntentFilter filter, int match,
11524            ComponentName[] set, ComponentName activity, int userId) {
11525        if (filter.countActions() != 1) {
11526            throw new IllegalArgumentException(
11527                    "replacePreferredActivity expects filter to have only 1 action.");
11528        }
11529        if (filter.countDataAuthorities() != 0
11530                || filter.countDataPaths() != 0
11531                || filter.countDataSchemes() > 1
11532                || filter.countDataTypes() != 0) {
11533            throw new IllegalArgumentException(
11534                    "replacePreferredActivity expects filter to have no data authorities, " +
11535                    "paths, or types; and at most one scheme.");
11536        }
11537
11538        final int callingUid = Binder.getCallingUid();
11539        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11540        synchronized (mPackages) {
11541            if (mContext.checkCallingOrSelfPermission(
11542                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11543                    != PackageManager.PERMISSION_GRANTED) {
11544                if (getUidTargetSdkVersionLockedLPr(callingUid)
11545                        < Build.VERSION_CODES.FROYO) {
11546                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11547                            + Binder.getCallingUid());
11548                    return;
11549                }
11550                mContext.enforceCallingOrSelfPermission(
11551                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11552            }
11553
11554            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11555            if (pir != null) {
11556                // Get all of the existing entries that exactly match this filter.
11557                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11558                if (existing != null && existing.size() == 1) {
11559                    PreferredActivity cur = existing.get(0);
11560                    if (DEBUG_PREFERRED) {
11561                        Slog.i(TAG, "Checking replace of preferred:");
11562                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11563                        if (!cur.mPref.mAlways) {
11564                            Slog.i(TAG, "  -- CUR; not mAlways!");
11565                        } else {
11566                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11567                            Slog.i(TAG, "  -- CUR: mSet="
11568                                    + Arrays.toString(cur.mPref.mSetComponents));
11569                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11570                            Slog.i(TAG, "  -- NEW: mMatch="
11571                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11572                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11573                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11574                        }
11575                    }
11576                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11577                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11578                            && cur.mPref.sameSet(set)) {
11579                        // Setting the preferred activity to what it happens to be already
11580                        if (DEBUG_PREFERRED) {
11581                            Slog.i(TAG, "Replacing with same preferred activity "
11582                                    + cur.mPref.mShortComponent + " for user "
11583                                    + userId + ":");
11584                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11585                        }
11586                        return;
11587                    }
11588                }
11589
11590                if (existing != null) {
11591                    if (DEBUG_PREFERRED) {
11592                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11593                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11594                    }
11595                    for (int i = 0; i < existing.size(); i++) {
11596                        PreferredActivity pa = existing.get(i);
11597                        if (DEBUG_PREFERRED) {
11598                            Slog.i(TAG, "Removing existing preferred activity "
11599                                    + pa.mPref.mComponent + ":");
11600                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11601                        }
11602                        pir.removeFilter(pa);
11603                    }
11604                }
11605            }
11606            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11607                    "Replacing preferred");
11608        }
11609    }
11610
11611    @Override
11612    public void clearPackagePreferredActivities(String packageName) {
11613        final int uid = Binder.getCallingUid();
11614        // writer
11615        synchronized (mPackages) {
11616            PackageParser.Package pkg = mPackages.get(packageName);
11617            if (pkg == null || pkg.applicationInfo.uid != uid) {
11618                if (mContext.checkCallingOrSelfPermission(
11619                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11620                        != PackageManager.PERMISSION_GRANTED) {
11621                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11622                            < Build.VERSION_CODES.FROYO) {
11623                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11624                                + Binder.getCallingUid());
11625                        return;
11626                    }
11627                    mContext.enforceCallingOrSelfPermission(
11628                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11629                }
11630            }
11631
11632            int user = UserHandle.getCallingUserId();
11633            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11634                scheduleWritePackageRestrictionsLocked(user);
11635            }
11636        }
11637    }
11638
11639    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11640    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11641        ArrayList<PreferredActivity> removed = null;
11642        boolean changed = false;
11643        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11644            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11645            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11646            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11647                continue;
11648            }
11649            Iterator<PreferredActivity> it = pir.filterIterator();
11650            while (it.hasNext()) {
11651                PreferredActivity pa = it.next();
11652                // Mark entry for removal only if it matches the package name
11653                // and the entry is of type "always".
11654                if (packageName == null ||
11655                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11656                                && pa.mPref.mAlways)) {
11657                    if (removed == null) {
11658                        removed = new ArrayList<PreferredActivity>();
11659                    }
11660                    removed.add(pa);
11661                }
11662            }
11663            if (removed != null) {
11664                for (int j=0; j<removed.size(); j++) {
11665                    PreferredActivity pa = removed.get(j);
11666                    pir.removeFilter(pa);
11667                }
11668                changed = true;
11669            }
11670        }
11671        return changed;
11672    }
11673
11674    @Override
11675    public void resetPreferredActivities(int userId) {
11676        /* TODO: Actually use userId. Why is it being passed in? */
11677        mContext.enforceCallingOrSelfPermission(
11678                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11679        // writer
11680        synchronized (mPackages) {
11681            int user = UserHandle.getCallingUserId();
11682            clearPackagePreferredActivitiesLPw(null, user);
11683            mSettings.readDefaultPreferredAppsLPw(this, user);
11684            scheduleWritePackageRestrictionsLocked(user);
11685        }
11686    }
11687
11688    @Override
11689    public int getPreferredActivities(List<IntentFilter> outFilters,
11690            List<ComponentName> outActivities, String packageName) {
11691
11692        int num = 0;
11693        final int userId = UserHandle.getCallingUserId();
11694        // reader
11695        synchronized (mPackages) {
11696            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11697            if (pir != null) {
11698                final Iterator<PreferredActivity> it = pir.filterIterator();
11699                while (it.hasNext()) {
11700                    final PreferredActivity pa = it.next();
11701                    if (packageName == null
11702                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11703                                    && pa.mPref.mAlways)) {
11704                        if (outFilters != null) {
11705                            outFilters.add(new IntentFilter(pa));
11706                        }
11707                        if (outActivities != null) {
11708                            outActivities.add(pa.mPref.mComponent);
11709                        }
11710                    }
11711                }
11712            }
11713        }
11714
11715        return num;
11716    }
11717
11718    @Override
11719    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11720            int userId) {
11721        int callingUid = Binder.getCallingUid();
11722        if (callingUid != Process.SYSTEM_UID) {
11723            throw new SecurityException(
11724                    "addPersistentPreferredActivity can only be run by the system");
11725        }
11726        if (filter.countActions() == 0) {
11727            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11728            return;
11729        }
11730        synchronized (mPackages) {
11731            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11732                    " :");
11733            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11734            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11735                    new PersistentPreferredActivity(filter, activity));
11736            scheduleWritePackageRestrictionsLocked(userId);
11737        }
11738    }
11739
11740    @Override
11741    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11742        int callingUid = Binder.getCallingUid();
11743        if (callingUid != Process.SYSTEM_UID) {
11744            throw new SecurityException(
11745                    "clearPackagePersistentPreferredActivities can only be run by the system");
11746        }
11747        ArrayList<PersistentPreferredActivity> removed = null;
11748        boolean changed = false;
11749        synchronized (mPackages) {
11750            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11751                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11752                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11753                        .valueAt(i);
11754                if (userId != thisUserId) {
11755                    continue;
11756                }
11757                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11758                while (it.hasNext()) {
11759                    PersistentPreferredActivity ppa = it.next();
11760                    // Mark entry for removal only if it matches the package name.
11761                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11762                        if (removed == null) {
11763                            removed = new ArrayList<PersistentPreferredActivity>();
11764                        }
11765                        removed.add(ppa);
11766                    }
11767                }
11768                if (removed != null) {
11769                    for (int j=0; j<removed.size(); j++) {
11770                        PersistentPreferredActivity ppa = removed.get(j);
11771                        ppir.removeFilter(ppa);
11772                    }
11773                    changed = true;
11774                }
11775            }
11776
11777            if (changed) {
11778                scheduleWritePackageRestrictionsLocked(userId);
11779            }
11780        }
11781    }
11782
11783    @Override
11784    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11785            int sourceUserId, int targetUserId, int flags) {
11786        mContext.enforceCallingOrSelfPermission(
11787                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11788        int callingUid = Binder.getCallingUid();
11789        enforceOwnerRights(ownerPackage, callingUid);
11790        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11791        if (intentFilter.countActions() == 0) {
11792            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11793            return;
11794        }
11795        synchronized (mPackages) {
11796            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11797                    ownerPackage, targetUserId, flags);
11798            CrossProfileIntentResolver resolver =
11799                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11800            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11801            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11802            if (existing != null) {
11803                int size = existing.size();
11804                for (int i = 0; i < size; i++) {
11805                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11806                        return;
11807                    }
11808                }
11809            }
11810            resolver.addFilter(newFilter);
11811            scheduleWritePackageRestrictionsLocked(sourceUserId);
11812        }
11813    }
11814
11815    @Override
11816    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage) {
11817        mContext.enforceCallingOrSelfPermission(
11818                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11819        int callingUid = Binder.getCallingUid();
11820        enforceOwnerRights(ownerPackage, callingUid);
11821        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11822        synchronized (mPackages) {
11823            CrossProfileIntentResolver resolver =
11824                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11825            ArraySet<CrossProfileIntentFilter> set =
11826                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11827            for (CrossProfileIntentFilter filter : set) {
11828                if (filter.getOwnerPackage().equals(ownerPackage)) {
11829                    resolver.removeFilter(filter);
11830                }
11831            }
11832            scheduleWritePackageRestrictionsLocked(sourceUserId);
11833        }
11834    }
11835
11836    // Enforcing that callingUid is owning pkg on userId
11837    private void enforceOwnerRights(String pkg, int callingUid) {
11838        // The system owns everything.
11839        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11840            return;
11841        }
11842        int callingUserId = UserHandle.getUserId(callingUid);
11843        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11844        if (pi == null) {
11845            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11846                    + callingUserId);
11847        }
11848        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11849            throw new SecurityException("Calling uid " + callingUid
11850                    + " does not own package " + pkg);
11851        }
11852    }
11853
11854    @Override
11855    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11856        Intent intent = new Intent(Intent.ACTION_MAIN);
11857        intent.addCategory(Intent.CATEGORY_HOME);
11858
11859        final int callingUserId = UserHandle.getCallingUserId();
11860        List<ResolveInfo> list = queryIntentActivities(intent, null,
11861                PackageManager.GET_META_DATA, callingUserId);
11862        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11863                true, false, false, callingUserId);
11864
11865        allHomeCandidates.clear();
11866        if (list != null) {
11867            for (ResolveInfo ri : list) {
11868                allHomeCandidates.add(ri);
11869            }
11870        }
11871        return (preferred == null || preferred.activityInfo == null)
11872                ? null
11873                : new ComponentName(preferred.activityInfo.packageName,
11874                        preferred.activityInfo.name);
11875    }
11876
11877    @Override
11878    public void setApplicationEnabledSetting(String appPackageName,
11879            int newState, int flags, int userId, String callingPackage) {
11880        if (!sUserManager.exists(userId)) return;
11881        if (callingPackage == null) {
11882            callingPackage = Integer.toString(Binder.getCallingUid());
11883        }
11884        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11885    }
11886
11887    @Override
11888    public void setComponentEnabledSetting(ComponentName componentName,
11889            int newState, int flags, int userId) {
11890        if (!sUserManager.exists(userId)) return;
11891        setEnabledSetting(componentName.getPackageName(),
11892                componentName.getClassName(), newState, flags, userId, null);
11893    }
11894
11895    private void setEnabledSetting(final String packageName, String className, int newState,
11896            final int flags, int userId, String callingPackage) {
11897        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11898              || newState == COMPONENT_ENABLED_STATE_ENABLED
11899              || newState == COMPONENT_ENABLED_STATE_DISABLED
11900              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11901              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11902            throw new IllegalArgumentException("Invalid new component state: "
11903                    + newState);
11904        }
11905        PackageSetting pkgSetting;
11906        final int uid = Binder.getCallingUid();
11907        final int permission = mContext.checkCallingOrSelfPermission(
11908                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11909        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11910        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11911        boolean sendNow = false;
11912        boolean isApp = (className == null);
11913        String componentName = isApp ? packageName : className;
11914        int packageUid = -1;
11915        ArrayList<String> components;
11916
11917        // writer
11918        synchronized (mPackages) {
11919            pkgSetting = mSettings.mPackages.get(packageName);
11920            if (pkgSetting == null) {
11921                if (className == null) {
11922                    throw new IllegalArgumentException(
11923                            "Unknown package: " + packageName);
11924                }
11925                throw new IllegalArgumentException(
11926                        "Unknown component: " + packageName
11927                        + "/" + className);
11928            }
11929            // Allow root and verify that userId is not being specified by a different user
11930            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11931                throw new SecurityException(
11932                        "Permission Denial: attempt to change component state from pid="
11933                        + Binder.getCallingPid()
11934                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11935            }
11936            if (className == null) {
11937                // We're dealing with an application/package level state change
11938                if (pkgSetting.getEnabled(userId) == newState) {
11939                    // Nothing to do
11940                    return;
11941                }
11942                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11943                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11944                    // Don't care about who enables an app.
11945                    callingPackage = null;
11946                }
11947                pkgSetting.setEnabled(newState, userId, callingPackage);
11948                // pkgSetting.pkg.mSetEnabled = newState;
11949            } else {
11950                // We're dealing with a component level state change
11951                // First, verify that this is a valid class name.
11952                PackageParser.Package pkg = pkgSetting.pkg;
11953                if (pkg == null || !pkg.hasComponentClassName(className)) {
11954                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11955                        throw new IllegalArgumentException("Component class " + className
11956                                + " does not exist in " + packageName);
11957                    } else {
11958                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11959                                + className + " does not exist in " + packageName);
11960                    }
11961                }
11962                switch (newState) {
11963                case COMPONENT_ENABLED_STATE_ENABLED:
11964                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11965                        return;
11966                    }
11967                    break;
11968                case COMPONENT_ENABLED_STATE_DISABLED:
11969                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11970                        return;
11971                    }
11972                    break;
11973                case COMPONENT_ENABLED_STATE_DEFAULT:
11974                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
11975                        return;
11976                    }
11977                    break;
11978                default:
11979                    Slog.e(TAG, "Invalid new component state: " + newState);
11980                    return;
11981                }
11982            }
11983            scheduleWritePackageRestrictionsLocked(userId);
11984            components = mPendingBroadcasts.get(userId, packageName);
11985            final boolean newPackage = components == null;
11986            if (newPackage) {
11987                components = new ArrayList<String>();
11988            }
11989            if (!components.contains(componentName)) {
11990                components.add(componentName);
11991            }
11992            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
11993                sendNow = true;
11994                // Purge entry from pending broadcast list if another one exists already
11995                // since we are sending one right away.
11996                mPendingBroadcasts.remove(userId, packageName);
11997            } else {
11998                if (newPackage) {
11999                    mPendingBroadcasts.put(userId, packageName, components);
12000                }
12001                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12002                    // Schedule a message
12003                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12004                }
12005            }
12006        }
12007
12008        long callingId = Binder.clearCallingIdentity();
12009        try {
12010            if (sendNow) {
12011                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12012                sendPackageChangedBroadcast(packageName,
12013                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12014            }
12015        } finally {
12016            Binder.restoreCallingIdentity(callingId);
12017        }
12018    }
12019
12020    private void sendPackageChangedBroadcast(String packageName,
12021            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12022        if (DEBUG_INSTALL)
12023            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12024                    + componentNames);
12025        Bundle extras = new Bundle(4);
12026        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12027        String nameList[] = new String[componentNames.size()];
12028        componentNames.toArray(nameList);
12029        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12030        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12031        extras.putInt(Intent.EXTRA_UID, packageUid);
12032        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12033                new int[] {UserHandle.getUserId(packageUid)});
12034    }
12035
12036    @Override
12037    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12038        if (!sUserManager.exists(userId)) return;
12039        final int uid = Binder.getCallingUid();
12040        final int permission = mContext.checkCallingOrSelfPermission(
12041                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12042        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12043        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12044        // writer
12045        synchronized (mPackages) {
12046            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12047                    uid, userId)) {
12048                scheduleWritePackageRestrictionsLocked(userId);
12049            }
12050        }
12051    }
12052
12053    @Override
12054    public String getInstallerPackageName(String packageName) {
12055        // reader
12056        synchronized (mPackages) {
12057            return mSettings.getInstallerPackageNameLPr(packageName);
12058        }
12059    }
12060
12061    @Override
12062    public int getApplicationEnabledSetting(String packageName, int userId) {
12063        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12064        int uid = Binder.getCallingUid();
12065        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12066        // reader
12067        synchronized (mPackages) {
12068            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12069        }
12070    }
12071
12072    @Override
12073    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12074        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12075        int uid = Binder.getCallingUid();
12076        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12077        // reader
12078        synchronized (mPackages) {
12079            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12080        }
12081    }
12082
12083    @Override
12084    public void enterSafeMode() {
12085        enforceSystemOrRoot("Only the system can request entering safe mode");
12086
12087        if (!mSystemReady) {
12088            mSafeMode = true;
12089        }
12090    }
12091
12092    @Override
12093    public void systemReady() {
12094        mSystemReady = true;
12095
12096        // Read the compatibilty setting when the system is ready.
12097        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12098                mContext.getContentResolver(),
12099                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12100        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12101        if (DEBUG_SETTINGS) {
12102            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12103        }
12104
12105        synchronized (mPackages) {
12106            // Verify that all of the preferred activity components actually
12107            // exist.  It is possible for applications to be updated and at
12108            // that point remove a previously declared activity component that
12109            // had been set as a preferred activity.  We try to clean this up
12110            // the next time we encounter that preferred activity, but it is
12111            // possible for the user flow to never be able to return to that
12112            // situation so here we do a sanity check to make sure we haven't
12113            // left any junk around.
12114            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12115            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12116                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12117                removed.clear();
12118                for (PreferredActivity pa : pir.filterSet()) {
12119                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12120                        removed.add(pa);
12121                    }
12122                }
12123                if (removed.size() > 0) {
12124                    for (int r=0; r<removed.size(); r++) {
12125                        PreferredActivity pa = removed.get(r);
12126                        Slog.w(TAG, "Removing dangling preferred activity: "
12127                                + pa.mPref.mComponent);
12128                        pir.removeFilter(pa);
12129                    }
12130                    mSettings.writePackageRestrictionsLPr(
12131                            mSettings.mPreferredActivities.keyAt(i));
12132                }
12133            }
12134        }
12135        sUserManager.systemReady();
12136
12137        // Kick off any messages waiting for system ready
12138        if (mPostSystemReadyMessages != null) {
12139            for (Message msg : mPostSystemReadyMessages) {
12140                msg.sendToTarget();
12141            }
12142            mPostSystemReadyMessages = null;
12143        }
12144    }
12145
12146    @Override
12147    public boolean isSafeMode() {
12148        return mSafeMode;
12149    }
12150
12151    @Override
12152    public boolean hasSystemUidErrors() {
12153        return mHasSystemUidErrors;
12154    }
12155
12156    static String arrayToString(int[] array) {
12157        StringBuffer buf = new StringBuffer(128);
12158        buf.append('[');
12159        if (array != null) {
12160            for (int i=0; i<array.length; i++) {
12161                if (i > 0) buf.append(", ");
12162                buf.append(array[i]);
12163            }
12164        }
12165        buf.append(']');
12166        return buf.toString();
12167    }
12168
12169    static class DumpState {
12170        public static final int DUMP_LIBS = 1 << 0;
12171        public static final int DUMP_FEATURES = 1 << 1;
12172        public static final int DUMP_RESOLVERS = 1 << 2;
12173        public static final int DUMP_PERMISSIONS = 1 << 3;
12174        public static final int DUMP_PACKAGES = 1 << 4;
12175        public static final int DUMP_SHARED_USERS = 1 << 5;
12176        public static final int DUMP_MESSAGES = 1 << 6;
12177        public static final int DUMP_PROVIDERS = 1 << 7;
12178        public static final int DUMP_VERIFIERS = 1 << 8;
12179        public static final int DUMP_PREFERRED = 1 << 9;
12180        public static final int DUMP_PREFERRED_XML = 1 << 10;
12181        public static final int DUMP_KEYSETS = 1 << 11;
12182        public static final int DUMP_VERSION = 1 << 12;
12183        public static final int DUMP_INSTALLS = 1 << 13;
12184
12185        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12186
12187        private int mTypes;
12188
12189        private int mOptions;
12190
12191        private boolean mTitlePrinted;
12192
12193        private SharedUserSetting mSharedUser;
12194
12195        public boolean isDumping(int type) {
12196            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12197                return true;
12198            }
12199
12200            return (mTypes & type) != 0;
12201        }
12202
12203        public void setDump(int type) {
12204            mTypes |= type;
12205        }
12206
12207        public boolean isOptionEnabled(int option) {
12208            return (mOptions & option) != 0;
12209        }
12210
12211        public void setOptionEnabled(int option) {
12212            mOptions |= option;
12213        }
12214
12215        public boolean onTitlePrinted() {
12216            final boolean printed = mTitlePrinted;
12217            mTitlePrinted = true;
12218            return printed;
12219        }
12220
12221        public boolean getTitlePrinted() {
12222            return mTitlePrinted;
12223        }
12224
12225        public void setTitlePrinted(boolean enabled) {
12226            mTitlePrinted = enabled;
12227        }
12228
12229        public SharedUserSetting getSharedUser() {
12230            return mSharedUser;
12231        }
12232
12233        public void setSharedUser(SharedUserSetting user) {
12234            mSharedUser = user;
12235        }
12236    }
12237
12238    @Override
12239    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12240        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12241                != PackageManager.PERMISSION_GRANTED) {
12242            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12243                    + Binder.getCallingPid()
12244                    + ", uid=" + Binder.getCallingUid()
12245                    + " without permission "
12246                    + android.Manifest.permission.DUMP);
12247            return;
12248        }
12249
12250        DumpState dumpState = new DumpState();
12251        boolean fullPreferred = false;
12252        boolean checkin = false;
12253
12254        String packageName = null;
12255
12256        int opti = 0;
12257        while (opti < args.length) {
12258            String opt = args[opti];
12259            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12260                break;
12261            }
12262            opti++;
12263
12264            if ("-a".equals(opt)) {
12265                // Right now we only know how to print all.
12266            } else if ("-h".equals(opt)) {
12267                pw.println("Package manager dump options:");
12268                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12269                pw.println("    --checkin: dump for a checkin");
12270                pw.println("    -f: print details of intent filters");
12271                pw.println("    -h: print this help");
12272                pw.println("  cmd may be one of:");
12273                pw.println("    l[ibraries]: list known shared libraries");
12274                pw.println("    f[ibraries]: list device features");
12275                pw.println("    k[eysets]: print known keysets");
12276                pw.println("    r[esolvers]: dump intent resolvers");
12277                pw.println("    perm[issions]: dump permissions");
12278                pw.println("    pref[erred]: print preferred package settings");
12279                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12280                pw.println("    prov[iders]: dump content providers");
12281                pw.println("    p[ackages]: dump installed packages");
12282                pw.println("    s[hared-users]: dump shared user IDs");
12283                pw.println("    m[essages]: print collected runtime messages");
12284                pw.println("    v[erifiers]: print package verifier info");
12285                pw.println("    version: print database version info");
12286                pw.println("    write: write current settings now");
12287                pw.println("    <package.name>: info about given package");
12288                pw.println("    installs: details about install sessions");
12289                return;
12290            } else if ("--checkin".equals(opt)) {
12291                checkin = true;
12292            } else if ("-f".equals(opt)) {
12293                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12294            } else {
12295                pw.println("Unknown argument: " + opt + "; use -h for help");
12296            }
12297        }
12298
12299        // Is the caller requesting to dump a particular piece of data?
12300        if (opti < args.length) {
12301            String cmd = args[opti];
12302            opti++;
12303            // Is this a package name?
12304            if ("android".equals(cmd) || cmd.contains(".")) {
12305                packageName = cmd;
12306                // When dumping a single package, we always dump all of its
12307                // filter information since the amount of data will be reasonable.
12308                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12309            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12310                dumpState.setDump(DumpState.DUMP_LIBS);
12311            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12312                dumpState.setDump(DumpState.DUMP_FEATURES);
12313            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12314                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12315            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12316                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12317            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12318                dumpState.setDump(DumpState.DUMP_PREFERRED);
12319            } else if ("preferred-xml".equals(cmd)) {
12320                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12321                if (opti < args.length && "--full".equals(args[opti])) {
12322                    fullPreferred = true;
12323                    opti++;
12324                }
12325            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12326                dumpState.setDump(DumpState.DUMP_PACKAGES);
12327            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12328                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12329            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12330                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12331            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12332                dumpState.setDump(DumpState.DUMP_MESSAGES);
12333            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12334                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12335            } else if ("version".equals(cmd)) {
12336                dumpState.setDump(DumpState.DUMP_VERSION);
12337            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12338                dumpState.setDump(DumpState.DUMP_KEYSETS);
12339            } else if ("installs".equals(cmd)) {
12340                dumpState.setDump(DumpState.DUMP_INSTALLS);
12341            } else if ("write".equals(cmd)) {
12342                synchronized (mPackages) {
12343                    mSettings.writeLPr();
12344                    pw.println("Settings written.");
12345                    return;
12346                }
12347            }
12348        }
12349
12350        if (checkin) {
12351            pw.println("vers,1");
12352        }
12353
12354        // reader
12355        synchronized (mPackages) {
12356            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12357                if (!checkin) {
12358                    if (dumpState.onTitlePrinted())
12359                        pw.println();
12360                    pw.println("Database versions:");
12361                    pw.print("  SDK Version:");
12362                    pw.print(" internal=");
12363                    pw.print(mSettings.mInternalSdkPlatform);
12364                    pw.print(" external=");
12365                    pw.println(mSettings.mExternalSdkPlatform);
12366                    pw.print("  DB Version:");
12367                    pw.print(" internal=");
12368                    pw.print(mSettings.mInternalDatabaseVersion);
12369                    pw.print(" external=");
12370                    pw.println(mSettings.mExternalDatabaseVersion);
12371                }
12372            }
12373
12374            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12375                if (!checkin) {
12376                    if (dumpState.onTitlePrinted())
12377                        pw.println();
12378                    pw.println("Verifiers:");
12379                    pw.print("  Required: ");
12380                    pw.print(mRequiredVerifierPackage);
12381                    pw.print(" (uid=");
12382                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12383                    pw.println(")");
12384                } else if (mRequiredVerifierPackage != null) {
12385                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12386                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12387                }
12388            }
12389
12390            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12391                boolean printedHeader = false;
12392                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12393                while (it.hasNext()) {
12394                    String name = it.next();
12395                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12396                    if (!checkin) {
12397                        if (!printedHeader) {
12398                            if (dumpState.onTitlePrinted())
12399                                pw.println();
12400                            pw.println("Libraries:");
12401                            printedHeader = true;
12402                        }
12403                        pw.print("  ");
12404                    } else {
12405                        pw.print("lib,");
12406                    }
12407                    pw.print(name);
12408                    if (!checkin) {
12409                        pw.print(" -> ");
12410                    }
12411                    if (ent.path != null) {
12412                        if (!checkin) {
12413                            pw.print("(jar) ");
12414                            pw.print(ent.path);
12415                        } else {
12416                            pw.print(",jar,");
12417                            pw.print(ent.path);
12418                        }
12419                    } else {
12420                        if (!checkin) {
12421                            pw.print("(apk) ");
12422                            pw.print(ent.apk);
12423                        } else {
12424                            pw.print(",apk,");
12425                            pw.print(ent.apk);
12426                        }
12427                    }
12428                    pw.println();
12429                }
12430            }
12431
12432            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12433                if (dumpState.onTitlePrinted())
12434                    pw.println();
12435                if (!checkin) {
12436                    pw.println("Features:");
12437                }
12438                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12439                while (it.hasNext()) {
12440                    String name = it.next();
12441                    if (!checkin) {
12442                        pw.print("  ");
12443                    } else {
12444                        pw.print("feat,");
12445                    }
12446                    pw.println(name);
12447                }
12448            }
12449
12450            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12451                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12452                        : "Activity Resolver Table:", "  ", packageName,
12453                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12454                    dumpState.setTitlePrinted(true);
12455                }
12456                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12457                        : "Receiver Resolver Table:", "  ", packageName,
12458                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12459                    dumpState.setTitlePrinted(true);
12460                }
12461                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12462                        : "Service Resolver Table:", "  ", packageName,
12463                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12464                    dumpState.setTitlePrinted(true);
12465                }
12466                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12467                        : "Provider Resolver Table:", "  ", packageName,
12468                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS), true)) {
12469                    dumpState.setTitlePrinted(true);
12470                }
12471            }
12472
12473            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12474                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12475                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12476                    int user = mSettings.mPreferredActivities.keyAt(i);
12477                    if (pir.dump(pw,
12478                            dumpState.getTitlePrinted()
12479                                ? "\nPreferred Activities User " + user + ":"
12480                                : "Preferred Activities User " + user + ":", "  ",
12481                            packageName, true, false)) {
12482                        dumpState.setTitlePrinted(true);
12483                    }
12484                }
12485            }
12486
12487            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12488                pw.flush();
12489                FileOutputStream fout = new FileOutputStream(fd);
12490                BufferedOutputStream str = new BufferedOutputStream(fout);
12491                XmlSerializer serializer = new FastXmlSerializer();
12492                try {
12493                    serializer.setOutput(str, "utf-8");
12494                    serializer.startDocument(null, true);
12495                    serializer.setFeature(
12496                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12497                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12498                    serializer.endDocument();
12499                    serializer.flush();
12500                } catch (IllegalArgumentException e) {
12501                    pw.println("Failed writing: " + e);
12502                } catch (IllegalStateException e) {
12503                    pw.println("Failed writing: " + e);
12504                } catch (IOException e) {
12505                    pw.println("Failed writing: " + e);
12506                }
12507            }
12508
12509            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12510                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12511                if (packageName == null) {
12512                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12513                        if (iperm == 0) {
12514                            if (dumpState.onTitlePrinted())
12515                                pw.println();
12516                            pw.println("AppOp Permissions:");
12517                        }
12518                        pw.print("  AppOp Permission ");
12519                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12520                        pw.println(":");
12521                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12522                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12523                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12524                        }
12525                    }
12526                }
12527            }
12528
12529            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12530                boolean printedSomething = false;
12531                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12532                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12533                        continue;
12534                    }
12535                    if (!printedSomething) {
12536                        if (dumpState.onTitlePrinted())
12537                            pw.println();
12538                        pw.println("Registered ContentProviders:");
12539                        printedSomething = true;
12540                    }
12541                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12542                    pw.print("    "); pw.println(p.toString());
12543                }
12544                printedSomething = false;
12545                for (Map.Entry<String, PackageParser.Provider> entry :
12546                        mProvidersByAuthority.entrySet()) {
12547                    PackageParser.Provider p = entry.getValue();
12548                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12549                        continue;
12550                    }
12551                    if (!printedSomething) {
12552                        if (dumpState.onTitlePrinted())
12553                            pw.println();
12554                        pw.println("ContentProvider Authorities:");
12555                        printedSomething = true;
12556                    }
12557                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12558                    pw.print("    "); pw.println(p.toString());
12559                    if (p.info != null && p.info.applicationInfo != null) {
12560                        final String appInfo = p.info.applicationInfo.toString();
12561                        pw.print("      applicationInfo="); pw.println(appInfo);
12562                    }
12563                }
12564            }
12565
12566            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12567                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12568            }
12569
12570            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12571                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12572            }
12573
12574            if (dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12575                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState, checkin);
12576            }
12577
12578            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12579                // XXX should handle packageName != null by dumping only install data that
12580                // the given package is involved with.
12581                if (dumpState.onTitlePrinted()) pw.println();
12582                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12583            }
12584
12585            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12586                if (dumpState.onTitlePrinted()) pw.println();
12587                mSettings.dumpReadMessagesLPr(pw, dumpState);
12588
12589                pw.println();
12590                pw.println("Package warning messages:");
12591                BufferedReader in = null;
12592                String line = null;
12593                try {
12594                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12595                    while ((line = in.readLine()) != null) {
12596                        if (line.contains("ignored: updated version")) continue;
12597                        pw.println(line);
12598                    }
12599                } catch (IOException ignored) {
12600                } finally {
12601                    IoUtils.closeQuietly(in);
12602                }
12603            }
12604
12605            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12606                BufferedReader in = null;
12607                String line = null;
12608                try {
12609                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12610                    while ((line = in.readLine()) != null) {
12611                        if (line.contains("ignored: updated version")) continue;
12612                        pw.print("msg,");
12613                        pw.println(line);
12614                    }
12615                } catch (IOException ignored) {
12616                } finally {
12617                    IoUtils.closeQuietly(in);
12618                }
12619            }
12620        }
12621    }
12622
12623    // ------- apps on sdcard specific code -------
12624    static final boolean DEBUG_SD_INSTALL = false;
12625
12626    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12627
12628    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12629
12630    private boolean mMediaMounted = false;
12631
12632    static String getEncryptKey() {
12633        try {
12634            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12635                    SD_ENCRYPTION_KEYSTORE_NAME);
12636            if (sdEncKey == null) {
12637                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12638                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12639                if (sdEncKey == null) {
12640                    Slog.e(TAG, "Failed to create encryption keys");
12641                    return null;
12642                }
12643            }
12644            return sdEncKey;
12645        } catch (NoSuchAlgorithmException nsae) {
12646            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12647            return null;
12648        } catch (IOException ioe) {
12649            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12650            return null;
12651        }
12652    }
12653
12654    /*
12655     * Update media status on PackageManager.
12656     */
12657    @Override
12658    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12659        int callingUid = Binder.getCallingUid();
12660        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12661            throw new SecurityException("Media status can only be updated by the system");
12662        }
12663        // reader; this apparently protects mMediaMounted, but should probably
12664        // be a different lock in that case.
12665        synchronized (mPackages) {
12666            Log.i(TAG, "Updating external media status from "
12667                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12668                    + (mediaStatus ? "mounted" : "unmounted"));
12669            if (DEBUG_SD_INSTALL)
12670                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12671                        + ", mMediaMounted=" + mMediaMounted);
12672            if (mediaStatus == mMediaMounted) {
12673                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12674                        : 0, -1);
12675                mHandler.sendMessage(msg);
12676                return;
12677            }
12678            mMediaMounted = mediaStatus;
12679        }
12680        // Queue up an async operation since the package installation may take a
12681        // little while.
12682        mHandler.post(new Runnable() {
12683            public void run() {
12684                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12685            }
12686        });
12687    }
12688
12689    /**
12690     * Called by MountService when the initial ASECs to scan are available.
12691     * Should block until all the ASEC containers are finished being scanned.
12692     */
12693    public void scanAvailableAsecs() {
12694        updateExternalMediaStatusInner(true, false, false);
12695        if (mShouldRestoreconData) {
12696            SELinuxMMAC.setRestoreconDone();
12697            mShouldRestoreconData = false;
12698        }
12699    }
12700
12701    /*
12702     * Collect information of applications on external media, map them against
12703     * existing containers and update information based on current mount status.
12704     * Please note that we always have to report status if reportStatus has been
12705     * set to true especially when unloading packages.
12706     */
12707    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12708            boolean externalStorage) {
12709        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12710        int[] uidArr = EmptyArray.INT;
12711
12712        final String[] list = PackageHelper.getSecureContainerList();
12713        if (ArrayUtils.isEmpty(list)) {
12714            Log.i(TAG, "No secure containers found");
12715        } else {
12716            // Process list of secure containers and categorize them
12717            // as active or stale based on their package internal state.
12718
12719            // reader
12720            synchronized (mPackages) {
12721                for (String cid : list) {
12722                    // Leave stages untouched for now; installer service owns them
12723                    if (PackageInstallerService.isStageName(cid)) continue;
12724
12725                    if (DEBUG_SD_INSTALL)
12726                        Log.i(TAG, "Processing container " + cid);
12727                    String pkgName = getAsecPackageName(cid);
12728                    if (pkgName == null) {
12729                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12730                        continue;
12731                    }
12732                    if (DEBUG_SD_INSTALL)
12733                        Log.i(TAG, "Looking for pkg : " + pkgName);
12734
12735                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12736                    if (ps == null) {
12737                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12738                        continue;
12739                    }
12740
12741                    /*
12742                     * Skip packages that are not external if we're unmounting
12743                     * external storage.
12744                     */
12745                    if (externalStorage && !isMounted && !isExternal(ps)) {
12746                        continue;
12747                    }
12748
12749                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12750                            getAppDexInstructionSets(ps), ps.isForwardLocked());
12751                    // The package status is changed only if the code path
12752                    // matches between settings and the container id.
12753                    if (ps.codePathString != null
12754                            && ps.codePathString.startsWith(args.getCodePath())) {
12755                        if (DEBUG_SD_INSTALL) {
12756                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12757                                    + " at code path: " + ps.codePathString);
12758                        }
12759
12760                        // We do have a valid package installed on sdcard
12761                        processCids.put(args, ps.codePathString);
12762                        final int uid = ps.appId;
12763                        if (uid != -1) {
12764                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12765                        }
12766                    } else {
12767                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12768                                + ps.codePathString);
12769                    }
12770                }
12771            }
12772
12773            Arrays.sort(uidArr);
12774        }
12775
12776        // Process packages with valid entries.
12777        if (isMounted) {
12778            if (DEBUG_SD_INSTALL)
12779                Log.i(TAG, "Loading packages");
12780            loadMediaPackages(processCids, uidArr);
12781            startCleaningPackages();
12782            mInstallerService.onSecureContainersAvailable();
12783        } else {
12784            if (DEBUG_SD_INSTALL)
12785                Log.i(TAG, "Unloading packages");
12786            unloadMediaPackages(processCids, uidArr, reportStatus);
12787        }
12788    }
12789
12790    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12791            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12792        int size = pkgList.size();
12793        if (size > 0) {
12794            // Send broadcasts here
12795            Bundle extras = new Bundle();
12796            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12797                    .toArray(new String[size]));
12798            if (uidArr != null) {
12799                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12800            }
12801            if (replacing) {
12802                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12803            }
12804            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12805                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12806            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12807        }
12808    }
12809
12810   /*
12811     * Look at potentially valid container ids from processCids If package
12812     * information doesn't match the one on record or package scanning fails,
12813     * the cid is added to list of removeCids. We currently don't delete stale
12814     * containers.
12815     */
12816    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12817        ArrayList<String> pkgList = new ArrayList<String>();
12818        Set<AsecInstallArgs> keys = processCids.keySet();
12819
12820        for (AsecInstallArgs args : keys) {
12821            String codePath = processCids.get(args);
12822            if (DEBUG_SD_INSTALL)
12823                Log.i(TAG, "Loading container : " + args.cid);
12824            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12825            try {
12826                // Make sure there are no container errors first.
12827                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12828                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12829                            + " when installing from sdcard");
12830                    continue;
12831                }
12832                // Check code path here.
12833                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12834                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12835                            + " does not match one in settings " + codePath);
12836                    continue;
12837                }
12838                // Parse package
12839                int parseFlags = mDefParseFlags;
12840                if (args.isExternal()) {
12841                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12842                }
12843                if (args.isFwdLocked()) {
12844                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12845                }
12846
12847                synchronized (mInstallLock) {
12848                    PackageParser.Package pkg = null;
12849                    try {
12850                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12851                    } catch (PackageManagerException e) {
12852                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12853                    }
12854                    // Scan the package
12855                    if (pkg != null) {
12856                        /*
12857                         * TODO why is the lock being held? doPostInstall is
12858                         * called in other places without the lock. This needs
12859                         * to be straightened out.
12860                         */
12861                        // writer
12862                        synchronized (mPackages) {
12863                            retCode = PackageManager.INSTALL_SUCCEEDED;
12864                            pkgList.add(pkg.packageName);
12865                            // Post process args
12866                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12867                                    pkg.applicationInfo.uid);
12868                        }
12869                    } else {
12870                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12871                    }
12872                }
12873
12874            } finally {
12875                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12876                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12877                }
12878            }
12879        }
12880        // writer
12881        synchronized (mPackages) {
12882            // If the platform SDK has changed since the last time we booted,
12883            // we need to re-grant app permission to catch any new ones that
12884            // appear. This is really a hack, and means that apps can in some
12885            // cases get permissions that the user didn't initially explicitly
12886            // allow... it would be nice to have some better way to handle
12887            // this situation.
12888            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12889            if (regrantPermissions)
12890                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12891                        + mSdkVersion + "; regranting permissions for external storage");
12892            mSettings.mExternalSdkPlatform = mSdkVersion;
12893
12894            // Make sure group IDs have been assigned, and any permission
12895            // changes in other apps are accounted for
12896            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12897                    | (regrantPermissions
12898                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12899                            : 0));
12900
12901            mSettings.updateExternalDatabaseVersion();
12902
12903            // can downgrade to reader
12904            // Persist settings
12905            mSettings.writeLPr();
12906        }
12907        // Send a broadcast to let everyone know we are done processing
12908        if (pkgList.size() > 0) {
12909            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12910        }
12911    }
12912
12913   /*
12914     * Utility method to unload a list of specified containers
12915     */
12916    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12917        // Just unmount all valid containers.
12918        for (AsecInstallArgs arg : cidArgs) {
12919            synchronized (mInstallLock) {
12920                arg.doPostDeleteLI(false);
12921           }
12922       }
12923   }
12924
12925    /*
12926     * Unload packages mounted on external media. This involves deleting package
12927     * data from internal structures, sending broadcasts about diabled packages,
12928     * gc'ing to free up references, unmounting all secure containers
12929     * corresponding to packages on external media, and posting a
12930     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12931     * that we always have to post this message if status has been requested no
12932     * matter what.
12933     */
12934    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12935            final boolean reportStatus) {
12936        if (DEBUG_SD_INSTALL)
12937            Log.i(TAG, "unloading media packages");
12938        ArrayList<String> pkgList = new ArrayList<String>();
12939        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12940        final Set<AsecInstallArgs> keys = processCids.keySet();
12941        for (AsecInstallArgs args : keys) {
12942            String pkgName = args.getPackageName();
12943            if (DEBUG_SD_INSTALL)
12944                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12945            // Delete package internally
12946            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12947            synchronized (mInstallLock) {
12948                boolean res = deletePackageLI(pkgName, null, false, null, null,
12949                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12950                if (res) {
12951                    pkgList.add(pkgName);
12952                } else {
12953                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12954                    failedList.add(args);
12955                }
12956            }
12957        }
12958
12959        // reader
12960        synchronized (mPackages) {
12961            // We didn't update the settings after removing each package;
12962            // write them now for all packages.
12963            mSettings.writeLPr();
12964        }
12965
12966        // We have to absolutely send UPDATED_MEDIA_STATUS only
12967        // after confirming that all the receivers processed the ordered
12968        // broadcast when packages get disabled, force a gc to clean things up.
12969        // and unload all the containers.
12970        if (pkgList.size() > 0) {
12971            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
12972                    new IIntentReceiver.Stub() {
12973                public void performReceive(Intent intent, int resultCode, String data,
12974                        Bundle extras, boolean ordered, boolean sticky,
12975                        int sendingUser) throws RemoteException {
12976                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
12977                            reportStatus ? 1 : 0, 1, keys);
12978                    mHandler.sendMessage(msg);
12979                }
12980            });
12981        } else {
12982            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
12983                    keys);
12984            mHandler.sendMessage(msg);
12985        }
12986    }
12987
12988    /** Binder call */
12989    @Override
12990    public void movePackage(final String packageName, final IPackageMoveObserver observer,
12991            final int flags) {
12992        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
12993        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
12994        int returnCode = PackageManager.MOVE_SUCCEEDED;
12995        int currInstallFlags = 0;
12996        int newInstallFlags = 0;
12997
12998        File codeFile = null;
12999        String installerPackageName = null;
13000        String packageAbiOverride = null;
13001
13002        // reader
13003        synchronized (mPackages) {
13004            final PackageParser.Package pkg = mPackages.get(packageName);
13005            final PackageSetting ps = mSettings.mPackages.get(packageName);
13006            if (pkg == null || ps == null) {
13007                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13008            } else {
13009                // Disable moving fwd locked apps and system packages
13010                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13011                    Slog.w(TAG, "Cannot move system application");
13012                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13013                } else if (pkg.mOperationPending) {
13014                    Slog.w(TAG, "Attempt to move package which has pending operations");
13015                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13016                } else {
13017                    // Find install location first
13018                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13019                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13020                        Slog.w(TAG, "Ambigous flags specified for move location.");
13021                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13022                    } else {
13023                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13024                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13025                        currInstallFlags = isExternal(pkg)
13026                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13027
13028                        if (newInstallFlags == currInstallFlags) {
13029                            Slog.w(TAG, "No move required. Trying to move to same location");
13030                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13031                        } else {
13032                            if (pkg.isForwardLocked()) {
13033                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13034                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13035                            }
13036                        }
13037                    }
13038                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13039                        pkg.mOperationPending = true;
13040                    }
13041                }
13042
13043                codeFile = new File(pkg.codePath);
13044                installerPackageName = ps.installerPackageName;
13045                packageAbiOverride = ps.cpuAbiOverrideString;
13046            }
13047        }
13048
13049        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13050            try {
13051                observer.packageMoved(packageName, returnCode);
13052            } catch (RemoteException ignored) {
13053            }
13054            return;
13055        }
13056
13057        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13058            @Override
13059            public void onUserActionRequired(Intent intent) throws RemoteException {
13060                throw new IllegalStateException();
13061            }
13062
13063            @Override
13064            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13065                    Bundle extras) throws RemoteException {
13066                Slog.d(TAG, "Install result for move: "
13067                        + PackageManager.installStatusToString(returnCode, msg));
13068
13069                // We usually have a new package now after the install, but if
13070                // we failed we need to clear the pending flag on the original
13071                // package object.
13072                synchronized (mPackages) {
13073                    final PackageParser.Package pkg = mPackages.get(packageName);
13074                    if (pkg != null) {
13075                        pkg.mOperationPending = false;
13076                    }
13077                }
13078
13079                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13080                switch (status) {
13081                    case PackageInstaller.STATUS_SUCCESS:
13082                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13083                        break;
13084                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13085                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13086                        break;
13087                    default:
13088                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13089                        break;
13090                }
13091            }
13092        };
13093
13094        // Treat a move like reinstalling an existing app, which ensures that we
13095        // process everythign uniformly, like unpacking native libraries.
13096        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13097
13098        final Message msg = mHandler.obtainMessage(INIT_COPY);
13099        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13100        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13101                installerPackageName, null, user, packageAbiOverride);
13102        mHandler.sendMessage(msg);
13103    }
13104
13105    @Override
13106    public boolean setInstallLocation(int loc) {
13107        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13108                null);
13109        if (getInstallLocation() == loc) {
13110            return true;
13111        }
13112        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13113                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13114            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13115                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13116            return true;
13117        }
13118        return false;
13119   }
13120
13121    @Override
13122    public int getInstallLocation() {
13123        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13124                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13125                PackageHelper.APP_INSTALL_AUTO);
13126    }
13127
13128    /** Called by UserManagerService */
13129    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13130        mDirtyUsers.remove(userHandle);
13131        mSettings.removeUserLPw(userHandle);
13132        mPendingBroadcasts.remove(userHandle);
13133        if (mInstaller != null) {
13134            // Technically, we shouldn't be doing this with the package lock
13135            // held.  However, this is very rare, and there is already so much
13136            // other disk I/O going on, that we'll let it slide for now.
13137            mInstaller.removeUserDataDirs(userHandle);
13138        }
13139        mUserNeedsBadging.delete(userHandle);
13140        removeUnusedPackagesLILPw(userManager, userHandle);
13141    }
13142
13143    /**
13144     * We're removing userHandle and would like to remove any downloaded packages
13145     * that are no longer in use by any other user.
13146     * @param userHandle the user being removed
13147     */
13148    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13149        final boolean DEBUG_CLEAN_APKS = false;
13150        int [] users = userManager.getUserIdsLPr();
13151        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13152        while (psit.hasNext()) {
13153            PackageSetting ps = psit.next();
13154            if (ps.pkg == null) {
13155                continue;
13156            }
13157            final String packageName = ps.pkg.packageName;
13158            // Skip over if system app
13159            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13160                continue;
13161            }
13162            if (DEBUG_CLEAN_APKS) {
13163                Slog.i(TAG, "Checking package " + packageName);
13164            }
13165            boolean keep = false;
13166            for (int i = 0; i < users.length; i++) {
13167                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13168                    keep = true;
13169                    if (DEBUG_CLEAN_APKS) {
13170                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13171                                + users[i]);
13172                    }
13173                    break;
13174                }
13175            }
13176            if (!keep) {
13177                if (DEBUG_CLEAN_APKS) {
13178                    Slog.i(TAG, "  Removing package " + packageName);
13179                }
13180                mHandler.post(new Runnable() {
13181                    public void run() {
13182                        deletePackageX(packageName, userHandle, 0);
13183                    } //end run
13184                });
13185            }
13186        }
13187    }
13188
13189    /** Called by UserManagerService */
13190    void createNewUserLILPw(int userHandle, File path) {
13191        if (mInstaller != null) {
13192            mInstaller.createUserConfig(userHandle);
13193            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13194        }
13195    }
13196
13197    @Override
13198    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13199        mContext.enforceCallingOrSelfPermission(
13200                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13201                "Only package verification agents can read the verifier device identity");
13202
13203        synchronized (mPackages) {
13204            return mSettings.getVerifierDeviceIdentityLPw();
13205        }
13206    }
13207
13208    @Override
13209    public void setPermissionEnforced(String permission, boolean enforced) {
13210        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13211        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13212            synchronized (mPackages) {
13213                if (mSettings.mReadExternalStorageEnforced == null
13214                        || mSettings.mReadExternalStorageEnforced != enforced) {
13215                    mSettings.mReadExternalStorageEnforced = enforced;
13216                    mSettings.writeLPr();
13217                }
13218            }
13219            // kill any non-foreground processes so we restart them and
13220            // grant/revoke the GID.
13221            final IActivityManager am = ActivityManagerNative.getDefault();
13222            if (am != null) {
13223                final long token = Binder.clearCallingIdentity();
13224                try {
13225                    am.killProcessesBelowForeground("setPermissionEnforcement");
13226                } catch (RemoteException e) {
13227                } finally {
13228                    Binder.restoreCallingIdentity(token);
13229                }
13230            }
13231        } else {
13232            throw new IllegalArgumentException("No selective enforcement for " + permission);
13233        }
13234    }
13235
13236    @Override
13237    @Deprecated
13238    public boolean isPermissionEnforced(String permission) {
13239        return true;
13240    }
13241
13242    @Override
13243    public boolean isStorageLow() {
13244        final long token = Binder.clearCallingIdentity();
13245        try {
13246            final DeviceStorageMonitorInternal
13247                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13248            if (dsm != null) {
13249                return dsm.isMemoryLow();
13250            } else {
13251                return false;
13252            }
13253        } finally {
13254            Binder.restoreCallingIdentity(token);
13255        }
13256    }
13257
13258    @Override
13259    public IPackageInstaller getPackageInstaller() {
13260        return mInstallerService;
13261    }
13262
13263    private boolean userNeedsBadging(int userId) {
13264        int index = mUserNeedsBadging.indexOfKey(userId);
13265        if (index < 0) {
13266            final UserInfo userInfo;
13267            final long token = Binder.clearCallingIdentity();
13268            try {
13269                userInfo = sUserManager.getUserInfo(userId);
13270            } finally {
13271                Binder.restoreCallingIdentity(token);
13272            }
13273            final boolean b;
13274            if (userInfo != null && userInfo.isManagedProfile()) {
13275                b = true;
13276            } else {
13277                b = false;
13278            }
13279            mUserNeedsBadging.put(userId, b);
13280            return b;
13281        }
13282        return mUserNeedsBadging.valueAt(index);
13283    }
13284
13285    @Override
13286    public KeySet getKeySetByAlias(String packageName, String alias) {
13287        if (packageName == null || alias == null) {
13288            return null;
13289        }
13290        synchronized(mPackages) {
13291            final PackageParser.Package pkg = mPackages.get(packageName);
13292            if (pkg == null) {
13293                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13294                throw new IllegalArgumentException("Unknown package: " + packageName);
13295            }
13296            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13297            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13298        }
13299    }
13300
13301    @Override
13302    public KeySet getSigningKeySet(String packageName) {
13303        if (packageName == null) {
13304            return null;
13305        }
13306        synchronized(mPackages) {
13307            final PackageParser.Package pkg = mPackages.get(packageName);
13308            if (pkg == null) {
13309                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13310                throw new IllegalArgumentException("Unknown package: " + packageName);
13311            }
13312            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13313                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13314                throw new SecurityException("May not access signing KeySet of other apps.");
13315            }
13316            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13317            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13318        }
13319    }
13320
13321    @Override
13322    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13323        if (packageName == null || ks == null) {
13324            return false;
13325        }
13326        synchronized(mPackages) {
13327            final PackageParser.Package pkg = mPackages.get(packageName);
13328            if (pkg == null) {
13329                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13330                throw new IllegalArgumentException("Unknown package: " + packageName);
13331            }
13332            IBinder ksh = ks.getToken();
13333            if (ksh instanceof KeySetHandle) {
13334                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13335                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13336            }
13337            return false;
13338        }
13339    }
13340
13341    @Override
13342    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13343        if (packageName == null || ks == null) {
13344            return false;
13345        }
13346        synchronized(mPackages) {
13347            final PackageParser.Package pkg = mPackages.get(packageName);
13348            if (pkg == null) {
13349                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13350                throw new IllegalArgumentException("Unknown package: " + packageName);
13351            }
13352            IBinder ksh = ks.getToken();
13353            if (ksh instanceof KeySetHandle) {
13354                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13355                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13356            }
13357            return false;
13358        }
13359    }
13360
13361    public void getUsageStatsIfNoPackageUsageInfo() {
13362        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13363            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13364            if (usm == null) {
13365                throw new IllegalStateException("UsageStatsManager must be initialized");
13366            }
13367            long now = System.currentTimeMillis();
13368            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13369            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13370                String packageName = entry.getKey();
13371                PackageParser.Package pkg = mPackages.get(packageName);
13372                if (pkg == null) {
13373                    continue;
13374                }
13375                UsageStats usage = entry.getValue();
13376                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13377                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13378            }
13379        }
13380    }
13381
13382    /**
13383     * Check and throw if the given before/after packages would be considered a
13384     * downgrade.
13385     */
13386    private static void checkDowngrade(PackageParser.Package before, PackageInfoLite after)
13387            throws PackageManagerException {
13388        if (after.versionCode < before.mVersionCode) {
13389            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13390                    "Update version code " + after.versionCode + " is older than current "
13391                    + before.mVersionCode);
13392        } else if (after.versionCode == before.mVersionCode) {
13393            if (after.baseRevisionCode < before.baseRevisionCode) {
13394                throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13395                        "Update base revision code " + after.baseRevisionCode
13396                        + " is older than current " + before.baseRevisionCode);
13397            }
13398
13399            if (!ArrayUtils.isEmpty(after.splitNames)) {
13400                for (int i = 0; i < after.splitNames.length; i++) {
13401                    final String splitName = after.splitNames[i];
13402                    final int j = ArrayUtils.indexOf(before.splitNames, splitName);
13403                    if (j != -1) {
13404                        if (after.splitRevisionCodes[i] < before.splitRevisionCodes[j]) {
13405                            throw new PackageManagerException(INSTALL_FAILED_VERSION_DOWNGRADE,
13406                                    "Update split " + splitName + " revision code "
13407                                    + after.splitRevisionCodes[i] + " is older than current "
13408                                    + before.splitRevisionCodes[j]);
13409                        }
13410                    }
13411                }
13412            }
13413        }
13414    }
13415}
13416