PackageManagerService.java revision e5186c12ec1c95b75d0fef1a38f94483e31aae6f 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.pm;
18
19import static android.Manifest.permission.GRANT_REVOKE_PERMISSIONS;
20import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
21import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
22import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
23import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED;
24import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER;
25import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
26import static android.content.pm.PackageManager.INSTALL_EXTERNAL;
27import static android.content.pm.PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
28import static android.content.pm.PackageManager.INSTALL_FAILED_CONFLICTING_PROVIDER;
29import static android.content.pm.PackageManager.INSTALL_FAILED_DEXOPT;
30import static android.content.pm.PackageManager.INSTALL_FAILED_DUPLICATE_PACKAGE;
31import static android.content.pm.PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION;
32import static android.content.pm.PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
33import static android.content.pm.PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
34import static android.content.pm.PackageManager.INSTALL_FAILED_INVALID_APK;
35import static android.content.pm.PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
36import static android.content.pm.PackageManager.INSTALL_FAILED_MISSING_SHARED_LIBRARY;
37import static android.content.pm.PackageManager.INSTALL_FAILED_PACKAGE_CHANGED;
38import static android.content.pm.PackageManager.INSTALL_FAILED_REPLACE_COULDNT_DELETE;
39import static android.content.pm.PackageManager.INSTALL_FAILED_SHARED_USER_INCOMPATIBLE;
40import static android.content.pm.PackageManager.INSTALL_FAILED_TEST_ONLY;
41import static android.content.pm.PackageManager.INSTALL_FAILED_UID_CHANGED;
42import static android.content.pm.PackageManager.INSTALL_FAILED_UPDATE_INCOMPATIBLE;
43import static android.content.pm.PackageManager.INSTALL_FAILED_USER_RESTRICTED;
44import static android.content.pm.PackageManager.INSTALL_FORWARD_LOCK;
45import static android.content.pm.PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
46import static android.content.pm.PackageParser.isApkFile;
47import static android.os.Process.PACKAGE_INFO_GID;
48import static android.os.Process.SYSTEM_UID;
49import static android.system.OsConstants.O_CREAT;
50import static android.system.OsConstants.O_RDWR;
51import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_MANAGED_PROFILE;
52import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_USER_OWNER;
53import static com.android.internal.content.NativeLibraryHelper.LIB64_DIR_NAME;
54import static com.android.internal.content.NativeLibraryHelper.LIB_DIR_NAME;
55import static com.android.internal.util.ArrayUtils.appendInt;
56import static com.android.internal.util.ArrayUtils.removeInt;
57
58import android.util.ArrayMap;
59
60import com.android.internal.R;
61import com.android.internal.app.IMediaContainerService;
62import com.android.internal.app.ResolverActivity;
63import com.android.internal.content.NativeLibraryHelper;
64import com.android.internal.content.PackageHelper;
65import com.android.internal.os.IParcelFileDescriptorFactory;
66import com.android.internal.util.ArrayUtils;
67import com.android.internal.util.FastPrintWriter;
68import com.android.internal.util.FastXmlSerializer;
69import com.android.internal.util.IndentingPrintWriter;
70import com.android.server.EventLogTags;
71import com.android.server.IntentResolver;
72import com.android.server.LocalServices;
73import com.android.server.ServiceThread;
74import com.android.server.SystemConfig;
75import com.android.server.Watchdog;
76import com.android.server.pm.Settings.DatabaseVersion;
77import com.android.server.storage.DeviceStorageMonitorInternal;
78
79import org.xmlpull.v1.XmlSerializer;
80
81import android.app.ActivityManager;
82import android.app.ActivityManagerNative;
83import android.app.AppGlobals;
84import android.app.IActivityManager;
85import android.app.admin.IDevicePolicyManager;
86import android.app.backup.IBackupManager;
87import android.app.usage.UsageStats;
88import android.app.usage.UsageStatsManager;
89import android.content.BroadcastReceiver;
90import android.content.ComponentName;
91import android.content.Context;
92import android.content.IIntentReceiver;
93import android.content.Intent;
94import android.content.IntentFilter;
95import android.content.IntentSender;
96import android.content.IntentSender.SendIntentException;
97import android.content.ServiceConnection;
98import android.content.pm.ActivityInfo;
99import android.content.pm.ApplicationInfo;
100import android.content.pm.FeatureInfo;
101import android.content.pm.IPackageDataObserver;
102import android.content.pm.IPackageDeleteObserver;
103import android.content.pm.IPackageDeleteObserver2;
104import android.content.pm.IPackageInstallObserver2;
105import android.content.pm.IPackageInstaller;
106import android.content.pm.IPackageManager;
107import android.content.pm.IPackageMoveObserver;
108import android.content.pm.IPackageStatsObserver;
109import android.content.pm.InstrumentationInfo;
110import android.content.pm.KeySet;
111import android.content.pm.ManifestDigest;
112import android.content.pm.PackageCleanItem;
113import android.content.pm.PackageInfo;
114import android.content.pm.PackageInfoLite;
115import android.content.pm.PackageInstaller;
116import android.content.pm.PackageManager;
117import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
118import android.content.pm.PackageParser.ActivityIntentInfo;
119import android.content.pm.PackageParser.PackageLite;
120import android.content.pm.PackageParser.PackageParserException;
121import android.content.pm.PackageParser;
122import android.content.pm.PackageStats;
123import android.content.pm.PackageUserState;
124import android.content.pm.ParceledListSlice;
125import android.content.pm.PermissionGroupInfo;
126import android.content.pm.PermissionInfo;
127import android.content.pm.ProviderInfo;
128import android.content.pm.ResolveInfo;
129import android.content.pm.ServiceInfo;
130import android.content.pm.Signature;
131import android.content.pm.UserInfo;
132import android.content.pm.VerificationParams;
133import android.content.pm.VerifierDeviceIdentity;
134import android.content.pm.VerifierInfo;
135import android.content.res.Resources;
136import android.hardware.display.DisplayManager;
137import android.net.Uri;
138import android.os.Binder;
139import android.os.Build;
140import android.os.Bundle;
141import android.os.Environment;
142import android.os.Environment.UserEnvironment;
143import android.os.storage.StorageManager;
144import android.os.Debug;
145import android.os.FileUtils;
146import android.os.Handler;
147import android.os.IBinder;
148import android.os.Looper;
149import android.os.Message;
150import android.os.Parcel;
151import android.os.ParcelFileDescriptor;
152import android.os.Process;
153import android.os.RemoteException;
154import android.os.SELinux;
155import android.os.ServiceManager;
156import android.os.SystemClock;
157import android.os.SystemProperties;
158import android.os.UserHandle;
159import android.os.UserManager;
160import android.security.KeyStore;
161import android.security.SystemKeyStore;
162import android.system.ErrnoException;
163import android.system.Os;
164import android.system.StructStat;
165import android.text.TextUtils;
166import android.util.ArraySet;
167import android.util.AtomicFile;
168import android.util.DisplayMetrics;
169import android.util.EventLog;
170import android.util.ExceptionUtils;
171import android.util.Log;
172import android.util.LogPrinter;
173import android.util.PrintStreamPrinter;
174import android.util.Slog;
175import android.util.SparseArray;
176import android.util.SparseBooleanArray;
177import android.view.Display;
178
179import java.io.BufferedInputStream;
180import java.io.BufferedOutputStream;
181import java.io.BufferedReader;
182import java.io.File;
183import java.io.FileDescriptor;
184import java.io.FileInputStream;
185import java.io.FileNotFoundException;
186import java.io.FileOutputStream;
187import java.io.FileReader;
188import java.io.FilenameFilter;
189import java.io.IOException;
190import java.io.InputStream;
191import java.io.PrintWriter;
192import java.nio.charset.StandardCharsets;
193import java.security.NoSuchAlgorithmException;
194import java.security.PublicKey;
195import java.security.cert.CertificateEncodingException;
196import java.security.cert.CertificateException;
197import java.text.SimpleDateFormat;
198import java.util.ArrayList;
199import java.util.Arrays;
200import java.util.Collection;
201import java.util.Collections;
202import java.util.Comparator;
203import java.util.Date;
204import java.util.Iterator;
205import java.util.List;
206import java.util.Map;
207import java.util.Objects;
208import java.util.Set;
209import java.util.concurrent.atomic.AtomicBoolean;
210import java.util.concurrent.atomic.AtomicLong;
211
212import dalvik.system.DexFile;
213import dalvik.system.StaleDexCacheError;
214import dalvik.system.VMRuntime;
215
216import libcore.io.IoUtils;
217import libcore.util.EmptyArray;
218
219/**
220 * Keep track of all those .apks everywhere.
221 *
222 * This is very central to the platform's security; please run the unit
223 * tests whenever making modifications here:
224 *
225mmm frameworks/base/tests/AndroidTests
226adb install -r -f out/target/product/passion/data/app/AndroidTests.apk
227adb shell am instrument -w -e class com.android.unit_tests.PackageManagerTests com.android.unit_tests/android.test.InstrumentationTestRunner
228 *
229 * {@hide}
230 */
231public class PackageManagerService extends IPackageManager.Stub {
232    static final String TAG = "PackageManager";
233    static final boolean DEBUG_SETTINGS = false;
234    static final boolean DEBUG_PREFERRED = false;
235    static final boolean DEBUG_UPGRADE = false;
236    private static final boolean DEBUG_INSTALL = false;
237    private static final boolean DEBUG_REMOVE = false;
238    private static final boolean DEBUG_BROADCASTS = false;
239    private static final boolean DEBUG_SHOW_INFO = false;
240    private static final boolean DEBUG_PACKAGE_INFO = false;
241    private static final boolean DEBUG_INTENT_MATCHING = false;
242    private static final boolean DEBUG_PACKAGE_SCANNING = false;
243    private static final boolean DEBUG_VERIFY = false;
244    private static final boolean DEBUG_DEXOPT = false;
245    private static final boolean DEBUG_ABI_SELECTION = false;
246
247    private static final int RADIO_UID = Process.PHONE_UID;
248    private static final int LOG_UID = Process.LOG_UID;
249    private static final int NFC_UID = Process.NFC_UID;
250    private static final int BLUETOOTH_UID = Process.BLUETOOTH_UID;
251    private static final int SHELL_UID = Process.SHELL_UID;
252
253    // Cap the size of permission trees that 3rd party apps can define
254    private static final int MAX_PERMISSION_TREE_FOOTPRINT = 32768;     // characters of text
255
256    // Suffix used during package installation when copying/moving
257    // package apks to install directory.
258    private static final String INSTALL_PACKAGE_SUFFIX = "-";
259
260    static final int SCAN_NO_DEX = 1<<1;
261    static final int SCAN_FORCE_DEX = 1<<2;
262    static final int SCAN_UPDATE_SIGNATURE = 1<<3;
263    static final int SCAN_NEW_INSTALL = 1<<4;
264    static final int SCAN_NO_PATHS = 1<<5;
265    static final int SCAN_UPDATE_TIME = 1<<6;
266    static final int SCAN_DEFER_DEX = 1<<7;
267    static final int SCAN_BOOTING = 1<<8;
268    static final int SCAN_TRUSTED_OVERLAY = 1<<9;
269    static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<10;
270    static final int SCAN_REPLACING = 1<<11;
271
272    static final int REMOVE_CHATTY = 1<<16;
273
274    /**
275     * Timeout (in milliseconds) after which the watchdog should declare that
276     * our handler thread is wedged.  The usual default for such things is one
277     * minute but we sometimes do very lengthy I/O operations on this thread,
278     * such as installing multi-gigabyte applications, so ours needs to be longer.
279     */
280    private static final long WATCHDOG_TIMEOUT = 1000*60*10;     // ten minutes
281
282    /**
283     * Whether verification is enabled by default.
284     */
285    private static final boolean DEFAULT_VERIFY_ENABLE = true;
286
287    /**
288     * The default maximum time to wait for the verification agent to return in
289     * milliseconds.
290     */
291    private static final long DEFAULT_VERIFICATION_TIMEOUT = 10 * 1000;
292
293    /**
294     * The default response for package verification timeout.
295     *
296     * This can be either PackageManager.VERIFICATION_ALLOW or
297     * PackageManager.VERIFICATION_REJECT.
298     */
299    private static final int DEFAULT_VERIFICATION_RESPONSE = PackageManager.VERIFICATION_ALLOW;
300
301    static final String DEFAULT_CONTAINER_PACKAGE = "com.android.defcontainer";
302
303    static final ComponentName DEFAULT_CONTAINER_COMPONENT = new ComponentName(
304            DEFAULT_CONTAINER_PACKAGE,
305            "com.android.defcontainer.DefaultContainerService");
306
307    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
308
309    private static final String VENDOR_OVERLAY_DIR = "/vendor/overlay";
310
311    private static String sPreferredInstructionSet;
312
313    final ServiceThread mHandlerThread;
314
315    private static final String IDMAP_PREFIX = "/data/resource-cache/";
316    private static final String IDMAP_SUFFIX = "@idmap";
317
318    final PackageHandler mHandler;
319
320    /**
321     * Messages for {@link #mHandler} that need to wait for system ready before
322     * being dispatched.
323     */
324    private ArrayList<Message> mPostSystemReadyMessages;
325
326    final int mSdkVersion = Build.VERSION.SDK_INT;
327
328    final Context mContext;
329    final boolean mFactoryTest;
330    final boolean mOnlyCore;
331    final boolean mLazyDexOpt;
332    final long mDexOptLRUThresholdInMills;
333    final DisplayMetrics mMetrics;
334    final int mDefParseFlags;
335    final String[] mSeparateProcesses;
336    final boolean mIsUpgrade;
337
338    // This is where all application persistent data goes.
339    final File mAppDataDir;
340
341    // This is where all application persistent data goes for secondary users.
342    final File mUserAppDataDir;
343
344    /** The location for ASEC container files on internal storage. */
345    final String mAsecInternalPath;
346
347    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
348    // LOCK HELD.  Can be called with mInstallLock held.
349    final Installer mInstaller;
350
351    /** Directory where installed third-party apps stored */
352    final File mAppInstallDir;
353
354    /**
355     * Directory to which applications installed internally have their
356     * 32 bit native libraries copied.
357     */
358    private File mAppLib32InstallDir;
359
360    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
361    // apps.
362    final File mDrmAppPrivateInstallDir;
363
364    // ----------------------------------------------------------------
365
366    // Lock for state used when installing and doing other long running
367    // operations.  Methods that must be called with this lock held have
368    // the suffix "LI".
369    final Object mInstallLock = new Object();
370
371    // ----------------------------------------------------------------
372
373    // Keys are String (package name), values are Package.  This also serves
374    // as the lock for the global state.  Methods that must be called with
375    // this lock held have the prefix "LP".
376    final ArrayMap<String, PackageParser.Package> mPackages =
377            new ArrayMap<String, PackageParser.Package>();
378
379    // Tracks available target package names -> overlay package paths.
380    final ArrayMap<String, ArrayMap<String, PackageParser.Package>> mOverlays =
381        new ArrayMap<String, ArrayMap<String, PackageParser.Package>>();
382
383    final Settings mSettings;
384    boolean mRestoredSettings;
385
386    // System configuration read by SystemConfig.
387    final int[] mGlobalGids;
388    final SparseArray<ArraySet<String>> mSystemPermissions;
389    final ArrayMap<String, FeatureInfo> mAvailableFeatures;
390
391    // If mac_permissions.xml was found for seinfo labeling.
392    boolean mFoundPolicyFile;
393
394    // If a recursive restorecon of /data/data/<pkg> is needed.
395    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
396
397    public static final class SharedLibraryEntry {
398        public final String path;
399        public final String apk;
400
401        SharedLibraryEntry(String _path, String _apk) {
402            path = _path;
403            apk = _apk;
404        }
405    }
406
407    // Currently known shared libraries.
408    final ArrayMap<String, SharedLibraryEntry> mSharedLibraries =
409            new ArrayMap<String, SharedLibraryEntry>();
410
411    // All available activities, for your resolving pleasure.
412    final ActivityIntentResolver mActivities =
413            new ActivityIntentResolver();
414
415    // All available receivers, for your resolving pleasure.
416    final ActivityIntentResolver mReceivers =
417            new ActivityIntentResolver();
418
419    // All available services, for your resolving pleasure.
420    final ServiceIntentResolver mServices = new ServiceIntentResolver();
421
422    // All available providers, for your resolving pleasure.
423    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
424
425    // Mapping from provider base names (first directory in content URI codePath)
426    // to the provider information.
427    final ArrayMap<String, PackageParser.Provider> mProvidersByAuthority =
428            new ArrayMap<String, PackageParser.Provider>();
429
430    // Mapping from instrumentation class names to info about them.
431    final ArrayMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
432            new ArrayMap<ComponentName, PackageParser.Instrumentation>();
433
434    // Mapping from permission names to info about them.
435    final ArrayMap<String, PackageParser.PermissionGroup> mPermissionGroups =
436            new ArrayMap<String, PackageParser.PermissionGroup>();
437
438    // Packages whose data we have transfered into another package, thus
439    // should no longer exist.
440    final ArraySet<String> mTransferedPackages = new ArraySet<String>();
441
442    // Broadcast actions that are only available to the system.
443    final ArraySet<String> mProtectedBroadcasts = new ArraySet<String>();
444
445    /** List of packages waiting for verification. */
446    final SparseArray<PackageVerificationState> mPendingVerification
447            = new SparseArray<PackageVerificationState>();
448
449    /** Set of packages associated with each app op permission. */
450    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
451
452    final PackageInstallerService mInstallerService;
453
454    ArraySet<PackageParser.Package> mDeferredDexOpt = null;
455
456    // Cache of users who need badging.
457    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
458
459    /** Token for keys in mPendingVerification. */
460    private int mPendingVerificationToken = 0;
461
462    volatile boolean mSystemReady;
463    volatile boolean mSafeMode;
464    volatile boolean mHasSystemUidErrors;
465
466    ApplicationInfo mAndroidApplication;
467    final ActivityInfo mResolveActivity = new ActivityInfo();
468    final ResolveInfo mResolveInfo = new ResolveInfo();
469    ComponentName mResolveComponentName;
470    PackageParser.Package mPlatformPackage;
471    ComponentName mCustomResolverComponentName;
472
473    boolean mResolverReplaced = false;
474
475    // Set of pending broadcasts for aggregating enable/disable of components.
476    static class PendingPackageBroadcasts {
477        // for each user id, a map of <package name -> components within that package>
478        final SparseArray<ArrayMap<String, ArrayList<String>>> mUidMap;
479
480        public PendingPackageBroadcasts() {
481            mUidMap = new SparseArray<ArrayMap<String, ArrayList<String>>>(2);
482        }
483
484        public ArrayList<String> get(int userId, String packageName) {
485            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
486            return packages.get(packageName);
487        }
488
489        public void put(int userId, String packageName, ArrayList<String> components) {
490            ArrayMap<String, ArrayList<String>> packages = getOrAllocate(userId);
491            packages.put(packageName, components);
492        }
493
494        public void remove(int userId, String packageName) {
495            ArrayMap<String, ArrayList<String>> packages = mUidMap.get(userId);
496            if (packages != null) {
497                packages.remove(packageName);
498            }
499        }
500
501        public void remove(int userId) {
502            mUidMap.remove(userId);
503        }
504
505        public int userIdCount() {
506            return mUidMap.size();
507        }
508
509        public int userIdAt(int n) {
510            return mUidMap.keyAt(n);
511        }
512
513        public ArrayMap<String, ArrayList<String>> packagesForUserId(int userId) {
514            return mUidMap.get(userId);
515        }
516
517        public int size() {
518            // total number of pending broadcast entries across all userIds
519            int num = 0;
520            for (int i = 0; i< mUidMap.size(); i++) {
521                num += mUidMap.valueAt(i).size();
522            }
523            return num;
524        }
525
526        public void clear() {
527            mUidMap.clear();
528        }
529
530        private ArrayMap<String, ArrayList<String>> getOrAllocate(int userId) {
531            ArrayMap<String, ArrayList<String>> map = mUidMap.get(userId);
532            if (map == null) {
533                map = new ArrayMap<String, ArrayList<String>>();
534                mUidMap.put(userId, map);
535            }
536            return map;
537        }
538    }
539    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
540
541    // Service Connection to remote media container service to copy
542    // package uri's from external media onto secure containers
543    // or internal storage.
544    private IMediaContainerService mContainerService = null;
545
546    static final int SEND_PENDING_BROADCAST = 1;
547    static final int MCS_BOUND = 3;
548    static final int END_COPY = 4;
549    static final int INIT_COPY = 5;
550    static final int MCS_UNBIND = 6;
551    static final int START_CLEANING_PACKAGE = 7;
552    static final int FIND_INSTALL_LOC = 8;
553    static final int POST_INSTALL = 9;
554    static final int MCS_RECONNECT = 10;
555    static final int MCS_GIVE_UP = 11;
556    static final int UPDATED_MEDIA_STATUS = 12;
557    static final int WRITE_SETTINGS = 13;
558    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
559    static final int PACKAGE_VERIFIED = 15;
560    static final int CHECK_PENDING_VERIFICATION = 16;
561
562    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
563
564    // Delay time in millisecs
565    static final int BROADCAST_DELAY = 10 * 1000;
566
567    static UserManagerService sUserManager;
568
569    // Stores a list of users whose package restrictions file needs to be updated
570    private ArraySet<Integer> mDirtyUsers = new ArraySet<Integer>();
571
572    final private DefaultContainerConnection mDefContainerConn =
573            new DefaultContainerConnection();
574    class DefaultContainerConnection implements ServiceConnection {
575        public void onServiceConnected(ComponentName name, IBinder service) {
576            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
577            IMediaContainerService imcs =
578                IMediaContainerService.Stub.asInterface(service);
579            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
580        }
581
582        public void onServiceDisconnected(ComponentName name) {
583            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
584        }
585    };
586
587    // Recordkeeping of restore-after-install operations that are currently in flight
588    // between the Package Manager and the Backup Manager
589    class PostInstallData {
590        public InstallArgs args;
591        public PackageInstalledInfo res;
592
593        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
594            args = _a;
595            res = _r;
596        }
597    };
598    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
599    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
600
601    private final String mRequiredVerifierPackage;
602
603    private final PackageUsage mPackageUsage = new PackageUsage();
604
605    private class PackageUsage {
606        private static final int WRITE_INTERVAL
607            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
608
609        private final Object mFileLock = new Object();
610        private final AtomicLong mLastWritten = new AtomicLong(0);
611        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
612
613        private boolean mIsHistoricalPackageUsageAvailable = true;
614
615        boolean isHistoricalPackageUsageAvailable() {
616            return mIsHistoricalPackageUsageAvailable;
617        }
618
619        void write(boolean force) {
620            if (force) {
621                writeInternal();
622                return;
623            }
624            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
625                && !DEBUG_DEXOPT) {
626                return;
627            }
628            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
629                new Thread("PackageUsage_DiskWriter") {
630                    @Override
631                    public void run() {
632                        try {
633                            writeInternal();
634                        } finally {
635                            mBackgroundWriteRunning.set(false);
636                        }
637                    }
638                }.start();
639            }
640        }
641
642        private void writeInternal() {
643            synchronized (mPackages) {
644                synchronized (mFileLock) {
645                    AtomicFile file = getFile();
646                    FileOutputStream f = null;
647                    try {
648                        f = file.startWrite();
649                        BufferedOutputStream out = new BufferedOutputStream(f);
650                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0660, SYSTEM_UID, PACKAGE_INFO_GID);
651                        StringBuilder sb = new StringBuilder();
652                        for (PackageParser.Package pkg : mPackages.values()) {
653                            if (pkg.mLastPackageUsageTimeInMills == 0) {
654                                continue;
655                            }
656                            sb.setLength(0);
657                            sb.append(pkg.packageName);
658                            sb.append(' ');
659                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
660                            sb.append('\n');
661                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
662                        }
663                        out.flush();
664                        file.finishWrite(f);
665                    } catch (IOException e) {
666                        if (f != null) {
667                            file.failWrite(f);
668                        }
669                        Log.e(TAG, "Failed to write package usage times", e);
670                    }
671                }
672            }
673            mLastWritten.set(SystemClock.elapsedRealtime());
674        }
675
676        void readLP() {
677            synchronized (mFileLock) {
678                AtomicFile file = getFile();
679                BufferedInputStream in = null;
680                try {
681                    in = new BufferedInputStream(file.openRead());
682                    StringBuffer sb = new StringBuffer();
683                    while (true) {
684                        String packageName = readToken(in, sb, ' ');
685                        if (packageName == null) {
686                            break;
687                        }
688                        String timeInMillisString = readToken(in, sb, '\n');
689                        if (timeInMillisString == null) {
690                            throw new IOException("Failed to find last usage time for package "
691                                                  + packageName);
692                        }
693                        PackageParser.Package pkg = mPackages.get(packageName);
694                        if (pkg == null) {
695                            continue;
696                        }
697                        long timeInMillis;
698                        try {
699                            timeInMillis = Long.parseLong(timeInMillisString.toString());
700                        } catch (NumberFormatException e) {
701                            throw new IOException("Failed to parse " + timeInMillisString
702                                                  + " as a long.", e);
703                        }
704                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
705                    }
706                } catch (FileNotFoundException expected) {
707                    mIsHistoricalPackageUsageAvailable = false;
708                } catch (IOException e) {
709                    Log.w(TAG, "Failed to read package usage times", e);
710                } finally {
711                    IoUtils.closeQuietly(in);
712                }
713            }
714            mLastWritten.set(SystemClock.elapsedRealtime());
715        }
716
717        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
718                throws IOException {
719            sb.setLength(0);
720            while (true) {
721                int ch = in.read();
722                if (ch == -1) {
723                    if (sb.length() == 0) {
724                        return null;
725                    }
726                    throw new IOException("Unexpected EOF");
727                }
728                if (ch == endOfToken) {
729                    return sb.toString();
730                }
731                sb.append((char)ch);
732            }
733        }
734
735        private AtomicFile getFile() {
736            File dataDir = Environment.getDataDirectory();
737            File systemDir = new File(dataDir, "system");
738            File fname = new File(systemDir, "package-usage.list");
739            return new AtomicFile(fname);
740        }
741    }
742
743    class PackageHandler extends Handler {
744        private boolean mBound = false;
745        final ArrayList<HandlerParams> mPendingInstalls =
746            new ArrayList<HandlerParams>();
747
748        private boolean connectToService() {
749            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
750                    " DefaultContainerService");
751            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
752            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
753            if (mContext.bindServiceAsUser(service, mDefContainerConn,
754                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
755                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
756                mBound = true;
757                return true;
758            }
759            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
760            return false;
761        }
762
763        private void disconnectService() {
764            mContainerService = null;
765            mBound = false;
766            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
767            mContext.unbindService(mDefContainerConn);
768            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
769        }
770
771        PackageHandler(Looper looper) {
772            super(looper);
773        }
774
775        public void handleMessage(Message msg) {
776            try {
777                doHandleMessage(msg);
778            } finally {
779                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
780            }
781        }
782
783        void doHandleMessage(Message msg) {
784            switch (msg.what) {
785                case INIT_COPY: {
786                    HandlerParams params = (HandlerParams) msg.obj;
787                    int idx = mPendingInstalls.size();
788                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
789                    // If a bind was already initiated we dont really
790                    // need to do anything. The pending install
791                    // will be processed later on.
792                    if (!mBound) {
793                        // If this is the only one pending we might
794                        // have to bind to the service again.
795                        if (!connectToService()) {
796                            Slog.e(TAG, "Failed to bind to media container service");
797                            params.serviceError();
798                            return;
799                        } else {
800                            // Once we bind to the service, the first
801                            // pending request will be processed.
802                            mPendingInstalls.add(idx, params);
803                        }
804                    } else {
805                        mPendingInstalls.add(idx, params);
806                        // Already bound to the service. Just make
807                        // sure we trigger off processing the first request.
808                        if (idx == 0) {
809                            mHandler.sendEmptyMessage(MCS_BOUND);
810                        }
811                    }
812                    break;
813                }
814                case MCS_BOUND: {
815                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
816                    if (msg.obj != null) {
817                        mContainerService = (IMediaContainerService) msg.obj;
818                    }
819                    if (mContainerService == null) {
820                        // Something seriously wrong. Bail out
821                        Slog.e(TAG, "Cannot bind to media container service");
822                        for (HandlerParams params : mPendingInstalls) {
823                            // Indicate service bind error
824                            params.serviceError();
825                        }
826                        mPendingInstalls.clear();
827                    } else if (mPendingInstalls.size() > 0) {
828                        HandlerParams params = mPendingInstalls.get(0);
829                        if (params != null) {
830                            if (params.startCopy()) {
831                                // We are done...  look for more work or to
832                                // go idle.
833                                if (DEBUG_SD_INSTALL) Log.i(TAG,
834                                        "Checking for more work or unbind...");
835                                // Delete pending install
836                                if (mPendingInstalls.size() > 0) {
837                                    mPendingInstalls.remove(0);
838                                }
839                                if (mPendingInstalls.size() == 0) {
840                                    if (mBound) {
841                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
842                                                "Posting delayed MCS_UNBIND");
843                                        removeMessages(MCS_UNBIND);
844                                        Message ubmsg = obtainMessage(MCS_UNBIND);
845                                        // Unbind after a little delay, to avoid
846                                        // continual thrashing.
847                                        sendMessageDelayed(ubmsg, 10000);
848                                    }
849                                } else {
850                                    // There are more pending requests in queue.
851                                    // Just post MCS_BOUND message to trigger processing
852                                    // of next pending install.
853                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
854                                            "Posting MCS_BOUND for next work");
855                                    mHandler.sendEmptyMessage(MCS_BOUND);
856                                }
857                            }
858                        }
859                    } else {
860                        // Should never happen ideally.
861                        Slog.w(TAG, "Empty queue");
862                    }
863                    break;
864                }
865                case MCS_RECONNECT: {
866                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
867                    if (mPendingInstalls.size() > 0) {
868                        if (mBound) {
869                            disconnectService();
870                        }
871                        if (!connectToService()) {
872                            Slog.e(TAG, "Failed to bind to media container service");
873                            for (HandlerParams params : mPendingInstalls) {
874                                // Indicate service bind error
875                                params.serviceError();
876                            }
877                            mPendingInstalls.clear();
878                        }
879                    }
880                    break;
881                }
882                case MCS_UNBIND: {
883                    // If there is no actual work left, then time to unbind.
884                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
885
886                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
887                        if (mBound) {
888                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
889
890                            disconnectService();
891                        }
892                    } else if (mPendingInstalls.size() > 0) {
893                        // There are more pending requests in queue.
894                        // Just post MCS_BOUND message to trigger processing
895                        // of next pending install.
896                        mHandler.sendEmptyMessage(MCS_BOUND);
897                    }
898
899                    break;
900                }
901                case MCS_GIVE_UP: {
902                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
903                    mPendingInstalls.remove(0);
904                    break;
905                }
906                case SEND_PENDING_BROADCAST: {
907                    String packages[];
908                    ArrayList<String> components[];
909                    int size = 0;
910                    int uids[];
911                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
912                    synchronized (mPackages) {
913                        if (mPendingBroadcasts == null) {
914                            return;
915                        }
916                        size = mPendingBroadcasts.size();
917                        if (size <= 0) {
918                            // Nothing to be done. Just return
919                            return;
920                        }
921                        packages = new String[size];
922                        components = new ArrayList[size];
923                        uids = new int[size];
924                        int i = 0;  // filling out the above arrays
925
926                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
927                            int packageUserId = mPendingBroadcasts.userIdAt(n);
928                            Iterator<Map.Entry<String, ArrayList<String>>> it
929                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
930                                            .entrySet().iterator();
931                            while (it.hasNext() && i < size) {
932                                Map.Entry<String, ArrayList<String>> ent = it.next();
933                                packages[i] = ent.getKey();
934                                components[i] = ent.getValue();
935                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
936                                uids[i] = (ps != null)
937                                        ? UserHandle.getUid(packageUserId, ps.appId)
938                                        : -1;
939                                i++;
940                            }
941                        }
942                        size = i;
943                        mPendingBroadcasts.clear();
944                    }
945                    // Send broadcasts
946                    for (int i = 0; i < size; i++) {
947                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
948                    }
949                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
950                    break;
951                }
952                case START_CLEANING_PACKAGE: {
953                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
954                    final String packageName = (String)msg.obj;
955                    final int userId = msg.arg1;
956                    final boolean andCode = msg.arg2 != 0;
957                    synchronized (mPackages) {
958                        if (userId == UserHandle.USER_ALL) {
959                            int[] users = sUserManager.getUserIds();
960                            for (int user : users) {
961                                mSettings.addPackageToCleanLPw(
962                                        new PackageCleanItem(user, packageName, andCode));
963                            }
964                        } else {
965                            mSettings.addPackageToCleanLPw(
966                                    new PackageCleanItem(userId, packageName, andCode));
967                        }
968                    }
969                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
970                    startCleaningPackages();
971                } break;
972                case POST_INSTALL: {
973                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
974                    PostInstallData data = mRunningInstalls.get(msg.arg1);
975                    mRunningInstalls.delete(msg.arg1);
976                    boolean deleteOld = false;
977
978                    if (data != null) {
979                        InstallArgs args = data.args;
980                        PackageInstalledInfo res = data.res;
981
982                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
983                            res.removedInfo.sendBroadcast(false, true, false);
984                            Bundle extras = new Bundle(1);
985                            extras.putInt(Intent.EXTRA_UID, res.uid);
986                            // Determine the set of users who are adding this
987                            // package for the first time vs. those who are seeing
988                            // an update.
989                            int[] firstUsers;
990                            int[] updateUsers = new int[0];
991                            if (res.origUsers == null || res.origUsers.length == 0) {
992                                firstUsers = res.newUsers;
993                            } else {
994                                firstUsers = new int[0];
995                                for (int i=0; i<res.newUsers.length; i++) {
996                                    int user = res.newUsers[i];
997                                    boolean isNew = true;
998                                    for (int j=0; j<res.origUsers.length; j++) {
999                                        if (res.origUsers[j] == user) {
1000                                            isNew = false;
1001                                            break;
1002                                        }
1003                                    }
1004                                    if (isNew) {
1005                                        int[] newFirst = new int[firstUsers.length+1];
1006                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1007                                                firstUsers.length);
1008                                        newFirst[firstUsers.length] = user;
1009                                        firstUsers = newFirst;
1010                                    } else {
1011                                        int[] newUpdate = new int[updateUsers.length+1];
1012                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1013                                                updateUsers.length);
1014                                        newUpdate[updateUsers.length] = user;
1015                                        updateUsers = newUpdate;
1016                                    }
1017                                }
1018                            }
1019                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1020                                    res.pkg.applicationInfo.packageName,
1021                                    extras, null, null, firstUsers);
1022                            final boolean update = res.removedInfo.removedPackage != null;
1023                            if (update) {
1024                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1025                            }
1026                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1027                                    res.pkg.applicationInfo.packageName,
1028                                    extras, null, null, updateUsers);
1029                            if (update) {
1030                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1031                                        res.pkg.applicationInfo.packageName,
1032                                        extras, null, null, updateUsers);
1033                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1034                                        null, null,
1035                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1036
1037                                // treat asec-hosted packages like removable media on upgrade
1038                                if (isForwardLocked(res.pkg) || isExternal(res.pkg)) {
1039                                    if (DEBUG_INSTALL) {
1040                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1041                                                + " is ASEC-hosted -> AVAILABLE");
1042                                    }
1043                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1044                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1045                                    pkgList.add(res.pkg.applicationInfo.packageName);
1046                                    sendResourcesChangedBroadcast(true, true,
1047                                            pkgList,uidArray, null);
1048                                }
1049                            }
1050                            if (res.removedInfo.args != null) {
1051                                // Remove the replaced package's older resources safely now
1052                                deleteOld = true;
1053                            }
1054
1055                            // Log current value of "unknown sources" setting
1056                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1057                                getUnknownSourcesSettings());
1058                        }
1059                        // Force a gc to clear up things
1060                        Runtime.getRuntime().gc();
1061                        // We delete after a gc for applications  on sdcard.
1062                        if (deleteOld) {
1063                            synchronized (mInstallLock) {
1064                                res.removedInfo.args.doPostDeleteLI(true);
1065                            }
1066                        }
1067                        if (args.observer != null) {
1068                            try {
1069                                Bundle extras = extrasForInstallResult(res);
1070                                args.observer.onPackageInstalled(res.name, res.returnCode,
1071                                        res.returnMsg, extras);
1072                            } catch (RemoteException e) {
1073                                Slog.i(TAG, "Observer no longer exists.");
1074                            }
1075                        }
1076                    } else {
1077                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1078                    }
1079                } break;
1080                case UPDATED_MEDIA_STATUS: {
1081                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1082                    boolean reportStatus = msg.arg1 == 1;
1083                    boolean doGc = msg.arg2 == 1;
1084                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1085                    if (doGc) {
1086                        // Force a gc to clear up stale containers.
1087                        Runtime.getRuntime().gc();
1088                    }
1089                    if (msg.obj != null) {
1090                        @SuppressWarnings("unchecked")
1091                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1092                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1093                        // Unload containers
1094                        unloadAllContainers(args);
1095                    }
1096                    if (reportStatus) {
1097                        try {
1098                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1099                            PackageHelper.getMountService().finishMediaUpdate();
1100                        } catch (RemoteException e) {
1101                            Log.e(TAG, "MountService not running?");
1102                        }
1103                    }
1104                } break;
1105                case WRITE_SETTINGS: {
1106                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1107                    synchronized (mPackages) {
1108                        removeMessages(WRITE_SETTINGS);
1109                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1110                        mSettings.writeLPr();
1111                        mDirtyUsers.clear();
1112                    }
1113                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1114                } break;
1115                case WRITE_PACKAGE_RESTRICTIONS: {
1116                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1117                    synchronized (mPackages) {
1118                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1119                        for (int userId : mDirtyUsers) {
1120                            mSettings.writePackageRestrictionsLPr(userId);
1121                        }
1122                        mDirtyUsers.clear();
1123                    }
1124                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1125                } break;
1126                case CHECK_PENDING_VERIFICATION: {
1127                    final int verificationId = msg.arg1;
1128                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1129
1130                    if ((state != null) && !state.timeoutExtended()) {
1131                        final InstallArgs args = state.getInstallArgs();
1132                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1133
1134                        Slog.i(TAG, "Verification timed out for " + originUri);
1135                        mPendingVerification.remove(verificationId);
1136
1137                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1138
1139                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1140                            Slog.i(TAG, "Continuing with installation of " + originUri);
1141                            state.setVerifierResponse(Binder.getCallingUid(),
1142                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1143                            broadcastPackageVerified(verificationId, originUri,
1144                                    PackageManager.VERIFICATION_ALLOW,
1145                                    state.getInstallArgs().getUser());
1146                            try {
1147                                ret = args.copyApk(mContainerService, true);
1148                            } catch (RemoteException e) {
1149                                Slog.e(TAG, "Could not contact the ContainerService");
1150                            }
1151                        } else {
1152                            broadcastPackageVerified(verificationId, originUri,
1153                                    PackageManager.VERIFICATION_REJECT,
1154                                    state.getInstallArgs().getUser());
1155                        }
1156
1157                        processPendingInstall(args, ret);
1158                        mHandler.sendEmptyMessage(MCS_UNBIND);
1159                    }
1160                    break;
1161                }
1162                case PACKAGE_VERIFIED: {
1163                    final int verificationId = msg.arg1;
1164
1165                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1166                    if (state == null) {
1167                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1168                        break;
1169                    }
1170
1171                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1172
1173                    state.setVerifierResponse(response.callerUid, response.code);
1174
1175                    if (state.isVerificationComplete()) {
1176                        mPendingVerification.remove(verificationId);
1177
1178                        final InstallArgs args = state.getInstallArgs();
1179                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1180
1181                        int ret;
1182                        if (state.isInstallAllowed()) {
1183                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1184                            broadcastPackageVerified(verificationId, originUri,
1185                                    response.code, state.getInstallArgs().getUser());
1186                            try {
1187                                ret = args.copyApk(mContainerService, true);
1188                            } catch (RemoteException e) {
1189                                Slog.e(TAG, "Could not contact the ContainerService");
1190                            }
1191                        } else {
1192                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1193                        }
1194
1195                        processPendingInstall(args, ret);
1196
1197                        mHandler.sendEmptyMessage(MCS_UNBIND);
1198                    }
1199
1200                    break;
1201                }
1202            }
1203        }
1204    }
1205
1206    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1207        Bundle extras = null;
1208        switch (res.returnCode) {
1209            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1210                extras = new Bundle();
1211                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1212                        res.origPermission);
1213                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1214                        res.origPackage);
1215                break;
1216            }
1217        }
1218        return extras;
1219    }
1220
1221    void scheduleWriteSettingsLocked() {
1222        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1223            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1224        }
1225    }
1226
1227    void scheduleWritePackageRestrictionsLocked(int userId) {
1228        if (!sUserManager.exists(userId)) return;
1229        mDirtyUsers.add(userId);
1230        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1231            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1232        }
1233    }
1234
1235    public static final PackageManagerService main(Context context, Installer installer,
1236            boolean factoryTest, boolean onlyCore) {
1237        PackageManagerService m = new PackageManagerService(context, installer,
1238                factoryTest, onlyCore);
1239        ServiceManager.addService("package", m);
1240        return m;
1241    }
1242
1243    static String[] splitString(String str, char sep) {
1244        int count = 1;
1245        int i = 0;
1246        while ((i=str.indexOf(sep, i)) >= 0) {
1247            count++;
1248            i++;
1249        }
1250
1251        String[] res = new String[count];
1252        i=0;
1253        count = 0;
1254        int lastI=0;
1255        while ((i=str.indexOf(sep, i)) >= 0) {
1256            res[count] = str.substring(lastI, i);
1257            count++;
1258            i++;
1259            lastI = i;
1260        }
1261        res[count] = str.substring(lastI, str.length());
1262        return res;
1263    }
1264
1265    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1266        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1267                Context.DISPLAY_SERVICE);
1268        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1269    }
1270
1271    public PackageManagerService(Context context, Installer installer,
1272            boolean factoryTest, boolean onlyCore) {
1273        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1274                SystemClock.uptimeMillis());
1275
1276        if (mSdkVersion <= 0) {
1277            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1278        }
1279
1280        mContext = context;
1281        mFactoryTest = factoryTest;
1282        mOnlyCore = onlyCore;
1283        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1284        mMetrics = new DisplayMetrics();
1285        mSettings = new Settings(context);
1286        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1287                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1288        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1289                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1290        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1291                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1292        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1293                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1294        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1295                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1296        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1297                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1298
1299        // TODO: add a property to control this?
1300        long dexOptLRUThresholdInMinutes;
1301        if (mLazyDexOpt) {
1302            dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
1303        } else {
1304            dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
1305        }
1306        mDexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
1307
1308        String separateProcesses = SystemProperties.get("debug.separate_processes");
1309        if (separateProcesses != null && separateProcesses.length() > 0) {
1310            if ("*".equals(separateProcesses)) {
1311                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1312                mSeparateProcesses = null;
1313                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1314            } else {
1315                mDefParseFlags = 0;
1316                mSeparateProcesses = separateProcesses.split(",");
1317                Slog.w(TAG, "Running with debug.separate_processes: "
1318                        + separateProcesses);
1319            }
1320        } else {
1321            mDefParseFlags = 0;
1322            mSeparateProcesses = null;
1323        }
1324
1325        mInstaller = installer;
1326
1327        getDefaultDisplayMetrics(context, mMetrics);
1328
1329        SystemConfig systemConfig = SystemConfig.getInstance();
1330        mGlobalGids = systemConfig.getGlobalGids();
1331        mSystemPermissions = systemConfig.getSystemPermissions();
1332        mAvailableFeatures = systemConfig.getAvailableFeatures();
1333
1334        synchronized (mInstallLock) {
1335        // writer
1336        synchronized (mPackages) {
1337            mHandlerThread = new ServiceThread(TAG,
1338                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1339            mHandlerThread.start();
1340            mHandler = new PackageHandler(mHandlerThread.getLooper());
1341            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1342
1343            File dataDir = Environment.getDataDirectory();
1344            mAppDataDir = new File(dataDir, "data");
1345            mAppInstallDir = new File(dataDir, "app");
1346            mAppLib32InstallDir = new File(dataDir, "app-lib");
1347            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1348            mUserAppDataDir = new File(dataDir, "user");
1349            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1350
1351            sUserManager = new UserManagerService(context, this,
1352                    mInstallLock, mPackages);
1353
1354            // Propagate permission configuration in to package manager.
1355            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1356                    = systemConfig.getPermissions();
1357            for (int i=0; i<permConfig.size(); i++) {
1358                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1359                BasePermission bp = mSettings.mPermissions.get(perm.name);
1360                if (bp == null) {
1361                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1362                    mSettings.mPermissions.put(perm.name, bp);
1363                }
1364                if (perm.gids != null) {
1365                    bp.gids = appendInts(bp.gids, perm.gids);
1366                }
1367            }
1368
1369            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1370            for (int i=0; i<libConfig.size(); i++) {
1371                mSharedLibraries.put(libConfig.keyAt(i),
1372                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1373            }
1374
1375            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1376
1377            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1378                    mSdkVersion, mOnlyCore);
1379
1380            String customResolverActivity = Resources.getSystem().getString(
1381                    R.string.config_customResolverActivity);
1382            if (TextUtils.isEmpty(customResolverActivity)) {
1383                customResolverActivity = null;
1384            } else {
1385                mCustomResolverComponentName = ComponentName.unflattenFromString(
1386                        customResolverActivity);
1387            }
1388
1389            long startTime = SystemClock.uptimeMillis();
1390
1391            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1392                    startTime);
1393
1394            // Set flag to monitor and not change apk file paths when
1395            // scanning install directories.
1396            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1397
1398            final ArraySet<String> alreadyDexOpted = new ArraySet<String>();
1399
1400            /**
1401             * Add everything in the in the boot class path to the
1402             * list of process files because dexopt will have been run
1403             * if necessary during zygote startup.
1404             */
1405            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1406            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1407
1408            if (bootClassPath != null) {
1409                String[] bootClassPathElements = splitString(bootClassPath, ':');
1410                for (String element : bootClassPathElements) {
1411                    alreadyDexOpted.add(element);
1412                }
1413            } else {
1414                Slog.w(TAG, "No BOOTCLASSPATH found!");
1415            }
1416
1417            if (systemServerClassPath != null) {
1418                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1419                for (String element : systemServerClassPathElements) {
1420                    alreadyDexOpted.add(element);
1421                }
1422            } else {
1423                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1424            }
1425
1426            final List<String> allInstructionSets = getAllInstructionSets();
1427            final String[] dexCodeInstructionSets =
1428                getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()]));
1429
1430            /**
1431             * Ensure all external libraries have had dexopt run on them.
1432             */
1433            if (mSharedLibraries.size() > 0) {
1434                // NOTE: For now, we're compiling these system "shared libraries"
1435                // (and framework jars) into all available architectures. It's possible
1436                // to compile them only when we come across an app that uses them (there's
1437                // already logic for that in scanPackageLI) but that adds some complexity.
1438                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1439                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1440                        final String lib = libEntry.path;
1441                        if (lib == null) {
1442                            continue;
1443                        }
1444
1445                        try {
1446                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1447                                                                                 dexCodeInstructionSet,
1448                                                                                 false);
1449                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1450                                alreadyDexOpted.add(lib);
1451
1452                                // The list of "shared libraries" we have at this point is
1453                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1454                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1455                                } else {
1456                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1457                                }
1458                            }
1459                        } catch (FileNotFoundException e) {
1460                            Slog.w(TAG, "Library not found: " + lib);
1461                        } catch (IOException e) {
1462                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1463                                    + e.getMessage());
1464                        }
1465                    }
1466                }
1467            }
1468
1469            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1470
1471            // Gross hack for now: we know this file doesn't contain any
1472            // code, so don't dexopt it to avoid the resulting log spew.
1473            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1474
1475            // Gross hack for now: we know this file is only part of
1476            // the boot class path for art, so don't dexopt it to
1477            // avoid the resulting log spew.
1478            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1479
1480            /**
1481             * And there are a number of commands implemented in Java, which
1482             * we currently need to do the dexopt on so that they can be
1483             * run from a non-root shell.
1484             */
1485            String[] frameworkFiles = frameworkDir.list();
1486            if (frameworkFiles != null) {
1487                // TODO: We could compile these only for the most preferred ABI. We should
1488                // first double check that the dex files for these commands are not referenced
1489                // by other system apps.
1490                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1491                    for (int i=0; i<frameworkFiles.length; i++) {
1492                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1493                        String path = libPath.getPath();
1494                        // Skip the file if we already did it.
1495                        if (alreadyDexOpted.contains(path)) {
1496                            continue;
1497                        }
1498                        // Skip the file if it is not a type we want to dexopt.
1499                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1500                            continue;
1501                        }
1502                        try {
1503                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1504                                                                                 dexCodeInstructionSet,
1505                                                                                 false);
1506                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1507                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1508                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1509                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1510                            }
1511                        } catch (FileNotFoundException e) {
1512                            Slog.w(TAG, "Jar not found: " + path);
1513                        } catch (IOException e) {
1514                            Slog.w(TAG, "Exception reading jar: " + path, e);
1515                        }
1516                    }
1517                }
1518            }
1519
1520            // Collect vendor overlay packages.
1521            // (Do this before scanning any apps.)
1522            // For security and version matching reason, only consider
1523            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1524            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1525            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1526                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1527
1528            // Find base frameworks (resource packages without code).
1529            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1530                    | PackageParser.PARSE_IS_SYSTEM_DIR
1531                    | PackageParser.PARSE_IS_PRIVILEGED,
1532                    scanFlags | SCAN_NO_DEX, 0);
1533
1534            // Collected privileged system packages.
1535            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1536            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1537                    | PackageParser.PARSE_IS_SYSTEM_DIR
1538                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1539
1540            // Collect ordinary system packages.
1541            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1542            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1543                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1544
1545            // Collect all vendor packages.
1546            File vendorAppDir = new File("/vendor/app");
1547            try {
1548                vendorAppDir = vendorAppDir.getCanonicalFile();
1549            } catch (IOException e) {
1550                // failed to look up canonical path, continue with original one
1551            }
1552            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1553                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1554
1555            // Collect all OEM packages.
1556            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1557            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1558                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1559
1560            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1561            mInstaller.moveFiles();
1562
1563            // Prune any system packages that no longer exist.
1564            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1565            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1566            if (!mOnlyCore) {
1567                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1568                while (psit.hasNext()) {
1569                    PackageSetting ps = psit.next();
1570
1571                    /*
1572                     * If this is not a system app, it can't be a
1573                     * disable system app.
1574                     */
1575                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1576                        continue;
1577                    }
1578
1579                    /*
1580                     * If the package is scanned, it's not erased.
1581                     */
1582                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1583                    if (scannedPkg != null) {
1584                        /*
1585                         * If the system app is both scanned and in the
1586                         * disabled packages list, then it must have been
1587                         * added via OTA. Remove it from the currently
1588                         * scanned package so the previously user-installed
1589                         * application can be scanned.
1590                         */
1591                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1592                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1593                                    + ps.name + "; removing system app.  Last known codePath="
1594                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1595                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1596                                    + scannedPkg.mVersionCode);
1597                            removePackageLI(ps, true);
1598                            expectingBetter.put(ps.name, ps.codePath);
1599                        }
1600
1601                        continue;
1602                    }
1603
1604                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1605                        psit.remove();
1606                        logCriticalInfo(Log.WARN, "System package " + ps.name
1607                                + " no longer exists; wiping its data");
1608                        removeDataDirsLI(ps.name);
1609                    } else {
1610                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1611                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1612                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1613                        }
1614                    }
1615                }
1616            }
1617
1618            //look for any incomplete package installations
1619            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1620            //clean up list
1621            for(int i = 0; i < deletePkgsList.size(); i++) {
1622                //clean up here
1623                cleanupInstallFailedPackage(deletePkgsList.get(i));
1624            }
1625            //delete tmp files
1626            deleteTempPackageFiles();
1627
1628            // Remove any shared userIDs that have no associated packages
1629            mSettings.pruneSharedUsersLPw();
1630
1631            if (!mOnlyCore) {
1632                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1633                        SystemClock.uptimeMillis());
1634                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1635
1636                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1637                        scanFlags, 0);
1638
1639                /**
1640                 * Remove disable package settings for any updated system
1641                 * apps that were removed via an OTA. If they're not a
1642                 * previously-updated app, remove them completely.
1643                 * Otherwise, just revoke their system-level permissions.
1644                 */
1645                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1646                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1647                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1648
1649                    String msg;
1650                    if (deletedPkg == null) {
1651                        msg = "Updated system package " + deletedAppName
1652                                + " no longer exists; wiping its data";
1653                        removeDataDirsLI(deletedAppName);
1654                    } else {
1655                        msg = "Updated system app + " + deletedAppName
1656                                + " no longer present; removing system privileges for "
1657                                + deletedAppName;
1658
1659                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1660
1661                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1662                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1663                    }
1664                    logCriticalInfo(Log.WARN, msg);
1665                }
1666
1667                /**
1668                 * Make sure all system apps that we expected to appear on
1669                 * the userdata partition actually showed up. If they never
1670                 * appeared, crawl back and revive the system version.
1671                 */
1672                for (int i = 0; i < expectingBetter.size(); i++) {
1673                    final String packageName = expectingBetter.keyAt(i);
1674                    if (!mPackages.containsKey(packageName)) {
1675                        final File scanFile = expectingBetter.valueAt(i);
1676
1677                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1678                                + " but never showed up; reverting to system");
1679
1680                        final int reparseFlags;
1681                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1682                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1683                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1684                                    | PackageParser.PARSE_IS_PRIVILEGED;
1685                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1686                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1687                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1688                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1689                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1690                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1691                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1692                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1693                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1694                        } else {
1695                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1696                            continue;
1697                        }
1698
1699                        mSettings.enableSystemPackageLPw(packageName);
1700
1701                        try {
1702                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1703                        } catch (PackageManagerException e) {
1704                            Slog.e(TAG, "Failed to parse original system package: "
1705                                    + e.getMessage());
1706                        }
1707                    }
1708                }
1709            }
1710
1711            // Now that we know all of the shared libraries, update all clients to have
1712            // the correct library paths.
1713            updateAllSharedLibrariesLPw();
1714
1715            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1716                // NOTE: We ignore potential failures here during a system scan (like
1717                // the rest of the commands above) because there's precious little we
1718                // can do about it. A settings error is reported, though.
1719                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1720                        false /* force dexopt */, false /* defer dexopt */);
1721            }
1722
1723            // Now that we know all the packages we are keeping,
1724            // read and update their last usage times.
1725            mPackageUsage.readLP();
1726
1727            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1728                    SystemClock.uptimeMillis());
1729            Slog.i(TAG, "Time to scan packages: "
1730                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1731                    + " seconds");
1732
1733            // If the platform SDK has changed since the last time we booted,
1734            // we need to re-grant app permission to catch any new ones that
1735            // appear.  This is really a hack, and means that apps can in some
1736            // cases get permissions that the user didn't initially explicitly
1737            // allow...  it would be nice to have some better way to handle
1738            // this situation.
1739            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1740                    != mSdkVersion;
1741            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1742                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1743                    + "; regranting permissions for internal storage");
1744            mSettings.mInternalSdkPlatform = mSdkVersion;
1745
1746            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1747                    | (regrantPermissions
1748                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1749                            : 0));
1750
1751            // If this is the first boot, and it is a normal boot, then
1752            // we need to initialize the default preferred apps.
1753            if (!mRestoredSettings && !onlyCore) {
1754                mSettings.readDefaultPreferredAppsLPw(this, 0);
1755            }
1756
1757            // If this is first boot after an OTA, and a normal boot, then
1758            // we need to clear code cache directories.
1759            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1760            if (mIsUpgrade && !onlyCore) {
1761                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1762                for (String pkgName : mSettings.mPackages.keySet()) {
1763                    deleteCodeCacheDirsLI(pkgName);
1764                }
1765                mSettings.mFingerprint = Build.FINGERPRINT;
1766            }
1767
1768            // All the changes are done during package scanning.
1769            mSettings.updateInternalDatabaseVersion();
1770
1771            // can downgrade to reader
1772            mSettings.writeLPr();
1773
1774            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1775                    SystemClock.uptimeMillis());
1776
1777
1778            mRequiredVerifierPackage = getRequiredVerifierLPr();
1779        } // synchronized (mPackages)
1780        } // synchronized (mInstallLock)
1781
1782        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1783
1784        // Now after opening every single application zip, make sure they
1785        // are all flushed.  Not really needed, but keeps things nice and
1786        // tidy.
1787        Runtime.getRuntime().gc();
1788    }
1789
1790    @Override
1791    public boolean isFirstBoot() {
1792        return !mRestoredSettings;
1793    }
1794
1795    @Override
1796    public boolean isOnlyCoreApps() {
1797        return mOnlyCore;
1798    }
1799
1800    @Override
1801    public boolean isUpgrade() {
1802        return mIsUpgrade;
1803    }
1804
1805    private String getRequiredVerifierLPr() {
1806        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1807        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1808                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1809
1810        String requiredVerifier = null;
1811
1812        final int N = receivers.size();
1813        for (int i = 0; i < N; i++) {
1814            final ResolveInfo info = receivers.get(i);
1815
1816            if (info.activityInfo == null) {
1817                continue;
1818            }
1819
1820            final String packageName = info.activityInfo.packageName;
1821
1822            final PackageSetting ps = mSettings.mPackages.get(packageName);
1823            if (ps == null) {
1824                continue;
1825            }
1826
1827            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1828            if (!gp.grantedPermissions
1829                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1830                continue;
1831            }
1832
1833            if (requiredVerifier != null) {
1834                throw new RuntimeException("There can be only one required verifier");
1835            }
1836
1837            requiredVerifier = packageName;
1838        }
1839
1840        return requiredVerifier;
1841    }
1842
1843    @Override
1844    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1845            throws RemoteException {
1846        try {
1847            return super.onTransact(code, data, reply, flags);
1848        } catch (RuntimeException e) {
1849            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1850                Slog.wtf(TAG, "Package Manager Crash", e);
1851            }
1852            throw e;
1853        }
1854    }
1855
1856    void cleanupInstallFailedPackage(PackageSetting ps) {
1857        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1858
1859        removeDataDirsLI(ps.name);
1860        if (ps.codePath != null) {
1861            if (ps.codePath.isDirectory()) {
1862                FileUtils.deleteContents(ps.codePath);
1863            }
1864            ps.codePath.delete();
1865        }
1866        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1867            if (ps.resourcePath.isDirectory()) {
1868                FileUtils.deleteContents(ps.resourcePath);
1869            }
1870            ps.resourcePath.delete();
1871        }
1872        mSettings.removePackageLPw(ps.name);
1873    }
1874
1875    static int[] appendInts(int[] cur, int[] add) {
1876        if (add == null) return cur;
1877        if (cur == null) return add;
1878        final int N = add.length;
1879        for (int i=0; i<N; i++) {
1880            cur = appendInt(cur, add[i]);
1881        }
1882        return cur;
1883    }
1884
1885    static int[] removeInts(int[] cur, int[] rem) {
1886        if (rem == null) return cur;
1887        if (cur == null) return cur;
1888        final int N = rem.length;
1889        for (int i=0; i<N; i++) {
1890            cur = removeInt(cur, rem[i]);
1891        }
1892        return cur;
1893    }
1894
1895    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1896        if (!sUserManager.exists(userId)) return null;
1897        final PackageSetting ps = (PackageSetting) p.mExtras;
1898        if (ps == null) {
1899            return null;
1900        }
1901        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1902        final PackageUserState state = ps.readUserState(userId);
1903        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1904                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1905                state, userId);
1906    }
1907
1908    @Override
1909    public boolean isPackageAvailable(String packageName, int userId) {
1910        if (!sUserManager.exists(userId)) return false;
1911        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1912        synchronized (mPackages) {
1913            PackageParser.Package p = mPackages.get(packageName);
1914            if (p != null) {
1915                final PackageSetting ps = (PackageSetting) p.mExtras;
1916                if (ps != null) {
1917                    final PackageUserState state = ps.readUserState(userId);
1918                    if (state != null) {
1919                        return PackageParser.isAvailable(state);
1920                    }
1921                }
1922            }
1923        }
1924        return false;
1925    }
1926
1927    @Override
1928    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1929        if (!sUserManager.exists(userId)) return null;
1930        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1931        // reader
1932        synchronized (mPackages) {
1933            PackageParser.Package p = mPackages.get(packageName);
1934            if (DEBUG_PACKAGE_INFO)
1935                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1936            if (p != null) {
1937                return generatePackageInfo(p, flags, userId);
1938            }
1939            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1940                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1941            }
1942        }
1943        return null;
1944    }
1945
1946    @Override
1947    public String[] currentToCanonicalPackageNames(String[] names) {
1948        String[] out = new String[names.length];
1949        // reader
1950        synchronized (mPackages) {
1951            for (int i=names.length-1; i>=0; i--) {
1952                PackageSetting ps = mSettings.mPackages.get(names[i]);
1953                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1954            }
1955        }
1956        return out;
1957    }
1958
1959    @Override
1960    public String[] canonicalToCurrentPackageNames(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                String cur = mSettings.mRenamedPackages.get(names[i]);
1966                out[i] = cur != null ? cur : names[i];
1967            }
1968        }
1969        return out;
1970    }
1971
1972    @Override
1973    public int getPackageUid(String packageName, int userId) {
1974        if (!sUserManager.exists(userId)) return -1;
1975        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1976        // reader
1977        synchronized (mPackages) {
1978            PackageParser.Package p = mPackages.get(packageName);
1979            if(p != null) {
1980                return UserHandle.getUid(userId, p.applicationInfo.uid);
1981            }
1982            PackageSetting ps = mSettings.mPackages.get(packageName);
1983            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1984                return -1;
1985            }
1986            p = ps.pkg;
1987            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
1988        }
1989    }
1990
1991    @Override
1992    public int[] getPackageGids(String packageName) {
1993        // reader
1994        synchronized (mPackages) {
1995            PackageParser.Package p = mPackages.get(packageName);
1996            if (DEBUG_PACKAGE_INFO)
1997                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
1998            if (p != null) {
1999                final PackageSetting ps = (PackageSetting)p.mExtras;
2000                return ps.getGids();
2001            }
2002        }
2003        // stupid thing to indicate an error.
2004        return new int[0];
2005    }
2006
2007    static final PermissionInfo generatePermissionInfo(
2008            BasePermission bp, int flags) {
2009        if (bp.perm != null) {
2010            return PackageParser.generatePermissionInfo(bp.perm, flags);
2011        }
2012        PermissionInfo pi = new PermissionInfo();
2013        pi.name = bp.name;
2014        pi.packageName = bp.sourcePackage;
2015        pi.nonLocalizedLabel = bp.name;
2016        pi.protectionLevel = bp.protectionLevel;
2017        return pi;
2018    }
2019
2020    @Override
2021    public PermissionInfo getPermissionInfo(String name, int flags) {
2022        // reader
2023        synchronized (mPackages) {
2024            final BasePermission p = mSettings.mPermissions.get(name);
2025            if (p != null) {
2026                return generatePermissionInfo(p, flags);
2027            }
2028            return null;
2029        }
2030    }
2031
2032    @Override
2033    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2034        // reader
2035        synchronized (mPackages) {
2036            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2037            for (BasePermission p : mSettings.mPermissions.values()) {
2038                if (group == null) {
2039                    if (p.perm == null || p.perm.info.group == null) {
2040                        out.add(generatePermissionInfo(p, flags));
2041                    }
2042                } else {
2043                    if (p.perm != null && group.equals(p.perm.info.group)) {
2044                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2045                    }
2046                }
2047            }
2048
2049            if (out.size() > 0) {
2050                return out;
2051            }
2052            return mPermissionGroups.containsKey(group) ? out : null;
2053        }
2054    }
2055
2056    @Override
2057    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2058        // reader
2059        synchronized (mPackages) {
2060            return PackageParser.generatePermissionGroupInfo(
2061                    mPermissionGroups.get(name), flags);
2062        }
2063    }
2064
2065    @Override
2066    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2067        // reader
2068        synchronized (mPackages) {
2069            final int N = mPermissionGroups.size();
2070            ArrayList<PermissionGroupInfo> out
2071                    = new ArrayList<PermissionGroupInfo>(N);
2072            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2073                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2074            }
2075            return out;
2076        }
2077    }
2078
2079    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2080            int userId) {
2081        if (!sUserManager.exists(userId)) return null;
2082        PackageSetting ps = mSettings.mPackages.get(packageName);
2083        if (ps != null) {
2084            if (ps.pkg == null) {
2085                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2086                        flags, userId);
2087                if (pInfo != null) {
2088                    return pInfo.applicationInfo;
2089                }
2090                return null;
2091            }
2092            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2093                    ps.readUserState(userId), userId);
2094        }
2095        return null;
2096    }
2097
2098    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2099            int userId) {
2100        if (!sUserManager.exists(userId)) return null;
2101        PackageSetting ps = mSettings.mPackages.get(packageName);
2102        if (ps != null) {
2103            PackageParser.Package pkg = ps.pkg;
2104            if (pkg == null) {
2105                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2106                    return null;
2107                }
2108                // Only data remains, so we aren't worried about code paths
2109                pkg = new PackageParser.Package(packageName);
2110                pkg.applicationInfo.packageName = packageName;
2111                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2112                pkg.applicationInfo.dataDir =
2113                        getDataPathForPackage(packageName, 0).getPath();
2114                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2115                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2116            }
2117            return generatePackageInfo(pkg, flags, userId);
2118        }
2119        return null;
2120    }
2121
2122    @Override
2123    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2124        if (!sUserManager.exists(userId)) return null;
2125        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2126        // writer
2127        synchronized (mPackages) {
2128            PackageParser.Package p = mPackages.get(packageName);
2129            if (DEBUG_PACKAGE_INFO) Log.v(
2130                    TAG, "getApplicationInfo " + packageName
2131                    + ": " + p);
2132            if (p != null) {
2133                PackageSetting ps = mSettings.mPackages.get(packageName);
2134                if (ps == null) return null;
2135                // Note: isEnabledLP() does not apply here - always return info
2136                return PackageParser.generateApplicationInfo(
2137                        p, flags, ps.readUserState(userId), userId);
2138            }
2139            if ("android".equals(packageName)||"system".equals(packageName)) {
2140                return mAndroidApplication;
2141            }
2142            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2143                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2144            }
2145        }
2146        return null;
2147    }
2148
2149
2150    @Override
2151    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2152        mContext.enforceCallingOrSelfPermission(
2153                android.Manifest.permission.CLEAR_APP_CACHE, null);
2154        // Queue up an async operation since clearing cache may take a little while.
2155        mHandler.post(new Runnable() {
2156            public void run() {
2157                mHandler.removeCallbacks(this);
2158                int retCode = -1;
2159                synchronized (mInstallLock) {
2160                    retCode = mInstaller.freeCache(freeStorageSize);
2161                    if (retCode < 0) {
2162                        Slog.w(TAG, "Couldn't clear application caches");
2163                    }
2164                }
2165                if (observer != null) {
2166                    try {
2167                        observer.onRemoveCompleted(null, (retCode >= 0));
2168                    } catch (RemoteException e) {
2169                        Slog.w(TAG, "RemoveException when invoking call back");
2170                    }
2171                }
2172            }
2173        });
2174    }
2175
2176    @Override
2177    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2178        mContext.enforceCallingOrSelfPermission(
2179                android.Manifest.permission.CLEAR_APP_CACHE, null);
2180        // Queue up an async operation since clearing cache may take a little while.
2181        mHandler.post(new Runnable() {
2182            public void run() {
2183                mHandler.removeCallbacks(this);
2184                int retCode = -1;
2185                synchronized (mInstallLock) {
2186                    retCode = mInstaller.freeCache(freeStorageSize);
2187                    if (retCode < 0) {
2188                        Slog.w(TAG, "Couldn't clear application caches");
2189                    }
2190                }
2191                if(pi != null) {
2192                    try {
2193                        // Callback via pending intent
2194                        int code = (retCode >= 0) ? 1 : 0;
2195                        pi.sendIntent(null, code, null,
2196                                null, null);
2197                    } catch (SendIntentException e1) {
2198                        Slog.i(TAG, "Failed to send pending intent");
2199                    }
2200                }
2201            }
2202        });
2203    }
2204
2205    void freeStorage(long freeStorageSize) throws IOException {
2206        synchronized (mInstallLock) {
2207            if (mInstaller.freeCache(freeStorageSize) < 0) {
2208                throw new IOException("Failed to free enough space");
2209            }
2210        }
2211    }
2212
2213    @Override
2214    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2215        if (!sUserManager.exists(userId)) return null;
2216        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2217        synchronized (mPackages) {
2218            PackageParser.Activity a = mActivities.mActivities.get(component);
2219
2220            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2221            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2222                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2223                if (ps == null) return null;
2224                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2225                        userId);
2226            }
2227            if (mResolveComponentName.equals(component)) {
2228                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2229                        new PackageUserState(), userId);
2230            }
2231        }
2232        return null;
2233    }
2234
2235    @Override
2236    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2237            String resolvedType) {
2238        synchronized (mPackages) {
2239            PackageParser.Activity a = mActivities.mActivities.get(component);
2240            if (a == null) {
2241                return false;
2242            }
2243            for (int i=0; i<a.intents.size(); i++) {
2244                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2245                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2246                    return true;
2247                }
2248            }
2249            return false;
2250        }
2251    }
2252
2253    @Override
2254    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2255        if (!sUserManager.exists(userId)) return null;
2256        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2257        synchronized (mPackages) {
2258            PackageParser.Activity a = mReceivers.mActivities.get(component);
2259            if (DEBUG_PACKAGE_INFO) Log.v(
2260                TAG, "getReceiverInfo " + component + ": " + a);
2261            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2262                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2263                if (ps == null) return null;
2264                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2265                        userId);
2266            }
2267        }
2268        return null;
2269    }
2270
2271    @Override
2272    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2273        if (!sUserManager.exists(userId)) return null;
2274        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2275        synchronized (mPackages) {
2276            PackageParser.Service s = mServices.mServices.get(component);
2277            if (DEBUG_PACKAGE_INFO) Log.v(
2278                TAG, "getServiceInfo " + component + ": " + s);
2279            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2280                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2281                if (ps == null) return null;
2282                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2283                        userId);
2284            }
2285        }
2286        return null;
2287    }
2288
2289    @Override
2290    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2291        if (!sUserManager.exists(userId)) return null;
2292        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2293        synchronized (mPackages) {
2294            PackageParser.Provider p = mProviders.mProviders.get(component);
2295            if (DEBUG_PACKAGE_INFO) Log.v(
2296                TAG, "getProviderInfo " + component + ": " + p);
2297            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2298                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2299                if (ps == null) return null;
2300                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2301                        userId);
2302            }
2303        }
2304        return null;
2305    }
2306
2307    @Override
2308    public String[] getSystemSharedLibraryNames() {
2309        Set<String> libSet;
2310        synchronized (mPackages) {
2311            libSet = mSharedLibraries.keySet();
2312            int size = libSet.size();
2313            if (size > 0) {
2314                String[] libs = new String[size];
2315                libSet.toArray(libs);
2316                return libs;
2317            }
2318        }
2319        return null;
2320    }
2321
2322    @Override
2323    public FeatureInfo[] getSystemAvailableFeatures() {
2324        Collection<FeatureInfo> featSet;
2325        synchronized (mPackages) {
2326            featSet = mAvailableFeatures.values();
2327            int size = featSet.size();
2328            if (size > 0) {
2329                FeatureInfo[] features = new FeatureInfo[size+1];
2330                featSet.toArray(features);
2331                FeatureInfo fi = new FeatureInfo();
2332                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2333                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2334                features[size] = fi;
2335                return features;
2336            }
2337        }
2338        return null;
2339    }
2340
2341    @Override
2342    public boolean hasSystemFeature(String name) {
2343        synchronized (mPackages) {
2344            return mAvailableFeatures.containsKey(name);
2345        }
2346    }
2347
2348    private void checkValidCaller(int uid, int userId) {
2349        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2350            return;
2351
2352        throw new SecurityException("Caller uid=" + uid
2353                + " is not privileged to communicate with user=" + userId);
2354    }
2355
2356    @Override
2357    public int checkPermission(String permName, String pkgName) {
2358        synchronized (mPackages) {
2359            PackageParser.Package p = mPackages.get(pkgName);
2360            if (p != null && p.mExtras != null) {
2361                PackageSetting ps = (PackageSetting)p.mExtras;
2362                if (ps.sharedUser != null) {
2363                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2364                        return PackageManager.PERMISSION_GRANTED;
2365                    }
2366                } else if (ps.grantedPermissions.contains(permName)) {
2367                    return PackageManager.PERMISSION_GRANTED;
2368                }
2369            }
2370        }
2371        return PackageManager.PERMISSION_DENIED;
2372    }
2373
2374    @Override
2375    public int checkUidPermission(String permName, int uid) {
2376        synchronized (mPackages) {
2377            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2378            if (obj != null) {
2379                GrantedPermissions gp = (GrantedPermissions)obj;
2380                if (gp.grantedPermissions.contains(permName)) {
2381                    return PackageManager.PERMISSION_GRANTED;
2382                }
2383            } else {
2384                ArraySet<String> perms = mSystemPermissions.get(uid);
2385                if (perms != null && perms.contains(permName)) {
2386                    return PackageManager.PERMISSION_GRANTED;
2387                }
2388            }
2389        }
2390        return PackageManager.PERMISSION_DENIED;
2391    }
2392
2393    /**
2394     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2395     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2396     * @param checkShell TODO(yamasani):
2397     * @param message the message to log on security exception
2398     */
2399    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2400            boolean checkShell, String message) {
2401        if (userId < 0) {
2402            throw new IllegalArgumentException("Invalid userId " + userId);
2403        }
2404        if (checkShell) {
2405            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2406        }
2407        if (userId == UserHandle.getUserId(callingUid)) return;
2408        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2409            if (requireFullPermission) {
2410                mContext.enforceCallingOrSelfPermission(
2411                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2412            } else {
2413                try {
2414                    mContext.enforceCallingOrSelfPermission(
2415                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2416                } catch (SecurityException se) {
2417                    mContext.enforceCallingOrSelfPermission(
2418                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2419                }
2420            }
2421        }
2422    }
2423
2424    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2425        if (callingUid == Process.SHELL_UID) {
2426            if (userHandle >= 0
2427                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2428                throw new SecurityException("Shell does not have permission to access user "
2429                        + userHandle);
2430            } else if (userHandle < 0) {
2431                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2432                        + Debug.getCallers(3));
2433            }
2434        }
2435    }
2436
2437    private BasePermission findPermissionTreeLP(String permName) {
2438        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2439            if (permName.startsWith(bp.name) &&
2440                    permName.length() > bp.name.length() &&
2441                    permName.charAt(bp.name.length()) == '.') {
2442                return bp;
2443            }
2444        }
2445        return null;
2446    }
2447
2448    private BasePermission checkPermissionTreeLP(String permName) {
2449        if (permName != null) {
2450            BasePermission bp = findPermissionTreeLP(permName);
2451            if (bp != null) {
2452                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2453                    return bp;
2454                }
2455                throw new SecurityException("Calling uid "
2456                        + Binder.getCallingUid()
2457                        + " is not allowed to add to permission tree "
2458                        + bp.name + " owned by uid " + bp.uid);
2459            }
2460        }
2461        throw new SecurityException("No permission tree found for " + permName);
2462    }
2463
2464    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2465        if (s1 == null) {
2466            return s2 == null;
2467        }
2468        if (s2 == null) {
2469            return false;
2470        }
2471        if (s1.getClass() != s2.getClass()) {
2472            return false;
2473        }
2474        return s1.equals(s2);
2475    }
2476
2477    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2478        if (pi1.icon != pi2.icon) return false;
2479        if (pi1.logo != pi2.logo) return false;
2480        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2481        if (!compareStrings(pi1.name, pi2.name)) return false;
2482        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2483        // We'll take care of setting this one.
2484        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2485        // These are not currently stored in settings.
2486        //if (!compareStrings(pi1.group, pi2.group)) return false;
2487        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2488        //if (pi1.labelRes != pi2.labelRes) return false;
2489        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2490        return true;
2491    }
2492
2493    int permissionInfoFootprint(PermissionInfo info) {
2494        int size = info.name.length();
2495        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2496        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2497        return size;
2498    }
2499
2500    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2501        int size = 0;
2502        for (BasePermission perm : mSettings.mPermissions.values()) {
2503            if (perm.uid == tree.uid) {
2504                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2505            }
2506        }
2507        return size;
2508    }
2509
2510    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2511        // We calculate the max size of permissions defined by this uid and throw
2512        // if that plus the size of 'info' would exceed our stated maximum.
2513        if (tree.uid != Process.SYSTEM_UID) {
2514            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2515            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2516                throw new SecurityException("Permission tree size cap exceeded");
2517            }
2518        }
2519    }
2520
2521    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2522        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2523            throw new SecurityException("Label must be specified in permission");
2524        }
2525        BasePermission tree = checkPermissionTreeLP(info.name);
2526        BasePermission bp = mSettings.mPermissions.get(info.name);
2527        boolean added = bp == null;
2528        boolean changed = true;
2529        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2530        if (added) {
2531            enforcePermissionCapLocked(info, tree);
2532            bp = new BasePermission(info.name, tree.sourcePackage,
2533                    BasePermission.TYPE_DYNAMIC);
2534        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2535            throw new SecurityException(
2536                    "Not allowed to modify non-dynamic permission "
2537                    + info.name);
2538        } else {
2539            if (bp.protectionLevel == fixedLevel
2540                    && bp.perm.owner.equals(tree.perm.owner)
2541                    && bp.uid == tree.uid
2542                    && comparePermissionInfos(bp.perm.info, info)) {
2543                changed = false;
2544            }
2545        }
2546        bp.protectionLevel = fixedLevel;
2547        info = new PermissionInfo(info);
2548        info.protectionLevel = fixedLevel;
2549        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2550        bp.perm.info.packageName = tree.perm.info.packageName;
2551        bp.uid = tree.uid;
2552        if (added) {
2553            mSettings.mPermissions.put(info.name, bp);
2554        }
2555        if (changed) {
2556            if (!async) {
2557                mSettings.writeLPr();
2558            } else {
2559                scheduleWriteSettingsLocked();
2560            }
2561        }
2562        return added;
2563    }
2564
2565    @Override
2566    public boolean addPermission(PermissionInfo info) {
2567        synchronized (mPackages) {
2568            return addPermissionLocked(info, false);
2569        }
2570    }
2571
2572    @Override
2573    public boolean addPermissionAsync(PermissionInfo info) {
2574        synchronized (mPackages) {
2575            return addPermissionLocked(info, true);
2576        }
2577    }
2578
2579    @Override
2580    public void removePermission(String name) {
2581        synchronized (mPackages) {
2582            checkPermissionTreeLP(name);
2583            BasePermission bp = mSettings.mPermissions.get(name);
2584            if (bp != null) {
2585                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2586                    throw new SecurityException(
2587                            "Not allowed to modify non-dynamic permission "
2588                            + name);
2589                }
2590                mSettings.mPermissions.remove(name);
2591                mSettings.writeLPr();
2592            }
2593        }
2594    }
2595
2596    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2597        int index = pkg.requestedPermissions.indexOf(bp.name);
2598        if (index == -1) {
2599            throw new SecurityException("Package " + pkg.packageName
2600                    + " has not requested permission " + bp.name);
2601        }
2602        boolean isNormal =
2603                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2604                        == PermissionInfo.PROTECTION_NORMAL);
2605        boolean isDangerous =
2606                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2607                        == PermissionInfo.PROTECTION_DANGEROUS);
2608        boolean isDevelopment =
2609                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2610
2611        if (!isNormal && !isDangerous && !isDevelopment) {
2612            throw new SecurityException("Permission " + bp.name
2613                    + " is not a changeable permission type");
2614        }
2615
2616        if (isNormal || isDangerous) {
2617            if (pkg.requestedPermissionsRequired.get(index)) {
2618                throw new SecurityException("Can't change " + bp.name
2619                        + ". It is required by the application");
2620            }
2621        }
2622    }
2623
2624    @Override
2625    public void grantPermission(String packageName, String permissionName) {
2626        mContext.enforceCallingOrSelfPermission(
2627                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2628        synchronized (mPackages) {
2629            final PackageParser.Package pkg = mPackages.get(packageName);
2630            if (pkg == null) {
2631                throw new IllegalArgumentException("Unknown package: " + packageName);
2632            }
2633            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2634            if (bp == null) {
2635                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2636            }
2637
2638            checkGrantRevokePermissions(pkg, bp);
2639
2640            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2641            if (ps == null) {
2642                return;
2643            }
2644            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2645            if (gp.grantedPermissions.add(permissionName)) {
2646                if (ps.haveGids) {
2647                    gp.gids = appendInts(gp.gids, bp.gids);
2648                }
2649                mSettings.writeLPr();
2650            }
2651        }
2652    }
2653
2654    @Override
2655    public void revokePermission(String packageName, String permissionName) {
2656        int changedAppId = -1;
2657
2658        synchronized (mPackages) {
2659            final PackageParser.Package pkg = mPackages.get(packageName);
2660            if (pkg == null) {
2661                throw new IllegalArgumentException("Unknown package: " + packageName);
2662            }
2663            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2664                mContext.enforceCallingOrSelfPermission(
2665                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2666            }
2667            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2668            if (bp == null) {
2669                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2670            }
2671
2672            checkGrantRevokePermissions(pkg, bp);
2673
2674            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2675            if (ps == null) {
2676                return;
2677            }
2678            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2679            if (gp.grantedPermissions.remove(permissionName)) {
2680                gp.grantedPermissions.remove(permissionName);
2681                if (ps.haveGids) {
2682                    gp.gids = removeInts(gp.gids, bp.gids);
2683                }
2684                mSettings.writeLPr();
2685                changedAppId = ps.appId;
2686            }
2687        }
2688
2689        if (changedAppId >= 0) {
2690            // We changed the perm on someone, kill its processes.
2691            IActivityManager am = ActivityManagerNative.getDefault();
2692            if (am != null) {
2693                final int callingUserId = UserHandle.getCallingUserId();
2694                final long ident = Binder.clearCallingIdentity();
2695                try {
2696                    //XXX we should only revoke for the calling user's app permissions,
2697                    // but for now we impact all users.
2698                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2699                    //        "revoke " + permissionName);
2700                    int[] users = sUserManager.getUserIds();
2701                    for (int user : users) {
2702                        am.killUid(UserHandle.getUid(user, changedAppId),
2703                                "revoke " + permissionName);
2704                    }
2705                } catch (RemoteException e) {
2706                } finally {
2707                    Binder.restoreCallingIdentity(ident);
2708                }
2709            }
2710        }
2711    }
2712
2713    @Override
2714    public boolean isProtectedBroadcast(String actionName) {
2715        synchronized (mPackages) {
2716            return mProtectedBroadcasts.contains(actionName);
2717        }
2718    }
2719
2720    @Override
2721    public int checkSignatures(String pkg1, String pkg2) {
2722        synchronized (mPackages) {
2723            final PackageParser.Package p1 = mPackages.get(pkg1);
2724            final PackageParser.Package p2 = mPackages.get(pkg2);
2725            if (p1 == null || p1.mExtras == null
2726                    || p2 == null || p2.mExtras == null) {
2727                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2728            }
2729            return compareSignatures(p1.mSignatures, p2.mSignatures);
2730        }
2731    }
2732
2733    @Override
2734    public int checkUidSignatures(int uid1, int uid2) {
2735        // Map to base uids.
2736        uid1 = UserHandle.getAppId(uid1);
2737        uid2 = UserHandle.getAppId(uid2);
2738        // reader
2739        synchronized (mPackages) {
2740            Signature[] s1;
2741            Signature[] s2;
2742            Object obj = mSettings.getUserIdLPr(uid1);
2743            if (obj != null) {
2744                if (obj instanceof SharedUserSetting) {
2745                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2746                } else if (obj instanceof PackageSetting) {
2747                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2748                } else {
2749                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2750                }
2751            } else {
2752                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2753            }
2754            obj = mSettings.getUserIdLPr(uid2);
2755            if (obj != null) {
2756                if (obj instanceof SharedUserSetting) {
2757                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2758                } else if (obj instanceof PackageSetting) {
2759                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2760                } else {
2761                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2762                }
2763            } else {
2764                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2765            }
2766            return compareSignatures(s1, s2);
2767        }
2768    }
2769
2770    /**
2771     * Compares two sets of signatures. Returns:
2772     * <br />
2773     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2774     * <br />
2775     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2776     * <br />
2777     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2778     * <br />
2779     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2780     * <br />
2781     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2782     */
2783    static int compareSignatures(Signature[] s1, Signature[] s2) {
2784        if (s1 == null) {
2785            return s2 == null
2786                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2787                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2788        }
2789
2790        if (s2 == null) {
2791            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2792        }
2793
2794        if (s1.length != s2.length) {
2795            return PackageManager.SIGNATURE_NO_MATCH;
2796        }
2797
2798        // Since both signature sets are of size 1, we can compare without HashSets.
2799        if (s1.length == 1) {
2800            return s1[0].equals(s2[0]) ?
2801                    PackageManager.SIGNATURE_MATCH :
2802                    PackageManager.SIGNATURE_NO_MATCH;
2803        }
2804
2805        ArraySet<Signature> set1 = new ArraySet<Signature>();
2806        for (Signature sig : s1) {
2807            set1.add(sig);
2808        }
2809        ArraySet<Signature> set2 = new ArraySet<Signature>();
2810        for (Signature sig : s2) {
2811            set2.add(sig);
2812        }
2813        // Make sure s2 contains all signatures in s1.
2814        if (set1.equals(set2)) {
2815            return PackageManager.SIGNATURE_MATCH;
2816        }
2817        return PackageManager.SIGNATURE_NO_MATCH;
2818    }
2819
2820    /**
2821     * If the database version for this type of package (internal storage or
2822     * external storage) is less than the version where package signatures
2823     * were updated, return true.
2824     */
2825    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2826        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2827                DatabaseVersion.SIGNATURE_END_ENTITY))
2828                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2829                        DatabaseVersion.SIGNATURE_END_ENTITY));
2830    }
2831
2832    /**
2833     * Used for backward compatibility to make sure any packages with
2834     * certificate chains get upgraded to the new style. {@code existingSigs}
2835     * will be in the old format (since they were stored on disk from before the
2836     * system upgrade) and {@code scannedSigs} will be in the newer format.
2837     */
2838    private int compareSignaturesCompat(PackageSignatures existingSigs,
2839            PackageParser.Package scannedPkg) {
2840        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2841            return PackageManager.SIGNATURE_NO_MATCH;
2842        }
2843
2844        ArraySet<Signature> existingSet = new ArraySet<Signature>();
2845        for (Signature sig : existingSigs.mSignatures) {
2846            existingSet.add(sig);
2847        }
2848        ArraySet<Signature> scannedCompatSet = new ArraySet<Signature>();
2849        for (Signature sig : scannedPkg.mSignatures) {
2850            try {
2851                Signature[] chainSignatures = sig.getChainSignatures();
2852                for (Signature chainSig : chainSignatures) {
2853                    scannedCompatSet.add(chainSig);
2854                }
2855            } catch (CertificateEncodingException e) {
2856                scannedCompatSet.add(sig);
2857            }
2858        }
2859        /*
2860         * Make sure the expanded scanned set contains all signatures in the
2861         * existing one.
2862         */
2863        if (scannedCompatSet.equals(existingSet)) {
2864            // Migrate the old signatures to the new scheme.
2865            existingSigs.assignSignatures(scannedPkg.mSignatures);
2866            // The new KeySets will be re-added later in the scanning process.
2867            synchronized (mPackages) {
2868                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2869            }
2870            return PackageManager.SIGNATURE_MATCH;
2871        }
2872        return PackageManager.SIGNATURE_NO_MATCH;
2873    }
2874
2875    private boolean isRecoverSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2876        if (isExternal(scannedPkg)) {
2877            return mSettings.isExternalDatabaseVersionOlderThan(
2878                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2879        } else {
2880            return mSettings.isInternalDatabaseVersionOlderThan(
2881                    DatabaseVersion.SIGNATURE_MALFORMED_RECOVER);
2882        }
2883    }
2884
2885    private int compareSignaturesRecover(PackageSignatures existingSigs,
2886            PackageParser.Package scannedPkg) {
2887        if (!isRecoverSignatureUpdateNeeded(scannedPkg)) {
2888            return PackageManager.SIGNATURE_NO_MATCH;
2889        }
2890
2891        String msg = null;
2892        try {
2893            if (Signature.areEffectiveMatch(existingSigs.mSignatures, scannedPkg.mSignatures)) {
2894                logCriticalInfo(Log.INFO, "Recovered effectively matching certificates for "
2895                        + scannedPkg.packageName);
2896                return PackageManager.SIGNATURE_MATCH;
2897            }
2898        } catch (CertificateException e) {
2899            msg = e.getMessage();
2900        }
2901
2902        logCriticalInfo(Log.INFO,
2903                "Failed to recover certificates for " + scannedPkg.packageName + ": " + msg);
2904        return PackageManager.SIGNATURE_NO_MATCH;
2905    }
2906
2907    @Override
2908    public String[] getPackagesForUid(int uid) {
2909        uid = UserHandle.getAppId(uid);
2910        // reader
2911        synchronized (mPackages) {
2912            Object obj = mSettings.getUserIdLPr(uid);
2913            if (obj instanceof SharedUserSetting) {
2914                final SharedUserSetting sus = (SharedUserSetting) obj;
2915                final int N = sus.packages.size();
2916                final String[] res = new String[N];
2917                final Iterator<PackageSetting> it = sus.packages.iterator();
2918                int i = 0;
2919                while (it.hasNext()) {
2920                    res[i++] = it.next().name;
2921                }
2922                return res;
2923            } else if (obj instanceof PackageSetting) {
2924                final PackageSetting ps = (PackageSetting) obj;
2925                return new String[] { ps.name };
2926            }
2927        }
2928        return null;
2929    }
2930
2931    @Override
2932    public String getNameForUid(int uid) {
2933        // reader
2934        synchronized (mPackages) {
2935            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2936            if (obj instanceof SharedUserSetting) {
2937                final SharedUserSetting sus = (SharedUserSetting) obj;
2938                return sus.name + ":" + sus.userId;
2939            } else if (obj instanceof PackageSetting) {
2940                final PackageSetting ps = (PackageSetting) obj;
2941                return ps.name;
2942            }
2943        }
2944        return null;
2945    }
2946
2947    @Override
2948    public int getUidForSharedUser(String sharedUserName) {
2949        if(sharedUserName == null) {
2950            return -1;
2951        }
2952        // reader
2953        synchronized (mPackages) {
2954            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, false);
2955            if (suid == null) {
2956                return -1;
2957            }
2958            return suid.userId;
2959        }
2960    }
2961
2962    @Override
2963    public int getFlagsForUid(int uid) {
2964        synchronized (mPackages) {
2965            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2966            if (obj instanceof SharedUserSetting) {
2967                final SharedUserSetting sus = (SharedUserSetting) obj;
2968                return sus.pkgFlags;
2969            } else if (obj instanceof PackageSetting) {
2970                final PackageSetting ps = (PackageSetting) obj;
2971                return ps.pkgFlags;
2972            }
2973        }
2974        return 0;
2975    }
2976
2977    @Override
2978    public boolean isUidPrivileged(int uid) {
2979        uid = UserHandle.getAppId(uid);
2980        // reader
2981        synchronized (mPackages) {
2982            Object obj = mSettings.getUserIdLPr(uid);
2983            if (obj instanceof SharedUserSetting) {
2984                final SharedUserSetting sus = (SharedUserSetting) obj;
2985                final Iterator<PackageSetting> it = sus.packages.iterator();
2986                while (it.hasNext()) {
2987                    if (it.next().isPrivileged()) {
2988                        return true;
2989                    }
2990                }
2991            } else if (obj instanceof PackageSetting) {
2992                final PackageSetting ps = (PackageSetting) obj;
2993                return ps.isPrivileged();
2994            }
2995        }
2996        return false;
2997    }
2998
2999    @Override
3000    public String[] getAppOpPermissionPackages(String permissionName) {
3001        synchronized (mPackages) {
3002            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
3003            if (pkgs == null) {
3004                return null;
3005            }
3006            return pkgs.toArray(new String[pkgs.size()]);
3007        }
3008    }
3009
3010    @Override
3011    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
3012            int flags, int userId) {
3013        if (!sUserManager.exists(userId)) return null;
3014        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
3015        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3016        return chooseBestActivity(intent, resolvedType, flags, query, userId);
3017    }
3018
3019    @Override
3020    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
3021            IntentFilter filter, int match, ComponentName activity) {
3022        final int userId = UserHandle.getCallingUserId();
3023        if (DEBUG_PREFERRED) {
3024            Log.v(TAG, "setLastChosenActivity intent=" + intent
3025                + " resolvedType=" + resolvedType
3026                + " flags=" + flags
3027                + " filter=" + filter
3028                + " match=" + match
3029                + " activity=" + activity);
3030            filter.dump(new PrintStreamPrinter(System.out), "    ");
3031        }
3032        intent.setComponent(null);
3033        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3034        // Find any earlier preferred or last chosen entries and nuke them
3035        findPreferredActivity(intent, resolvedType,
3036                flags, query, 0, false, true, false, userId);
3037        // Add the new activity as the last chosen for this filter
3038        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3039                "Setting last chosen");
3040    }
3041
3042    @Override
3043    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3044        final int userId = UserHandle.getCallingUserId();
3045        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3046        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3047        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3048                false, false, false, userId);
3049    }
3050
3051    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3052            int flags, List<ResolveInfo> query, int userId) {
3053        if (query != null) {
3054            final int N = query.size();
3055            if (N == 1) {
3056                return query.get(0);
3057            } else if (N > 1) {
3058                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3059                // If there is more than one activity with the same priority,
3060                // then let the user decide between them.
3061                ResolveInfo r0 = query.get(0);
3062                ResolveInfo r1 = query.get(1);
3063                if (DEBUG_INTENT_MATCHING || debug) {
3064                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3065                            + r1.activityInfo.name + "=" + r1.priority);
3066                }
3067                // If the first activity has a higher priority, or a different
3068                // default, then it is always desireable to pick it.
3069                if (r0.priority != r1.priority
3070                        || r0.preferredOrder != r1.preferredOrder
3071                        || r0.isDefault != r1.isDefault) {
3072                    return query.get(0);
3073                }
3074                // If we have saved a preference for a preferred activity for
3075                // this Intent, use that.
3076                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3077                        flags, query, r0.priority, true, false, debug, userId);
3078                if (ri != null) {
3079                    return ri;
3080                }
3081                if (userId != 0) {
3082                    ri = new ResolveInfo(mResolveInfo);
3083                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3084                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3085                            ri.activityInfo.applicationInfo);
3086                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3087                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3088                    return ri;
3089                }
3090                return mResolveInfo;
3091            }
3092        }
3093        return null;
3094    }
3095
3096    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3097            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3098        final int N = query.size();
3099        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3100                .get(userId);
3101        // Get the list of persistent preferred activities that handle the intent
3102        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3103        List<PersistentPreferredActivity> pprefs = ppir != null
3104                ? ppir.queryIntent(intent, resolvedType,
3105                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3106                : null;
3107        if (pprefs != null && pprefs.size() > 0) {
3108            final int M = pprefs.size();
3109            for (int i=0; i<M; i++) {
3110                final PersistentPreferredActivity ppa = pprefs.get(i);
3111                if (DEBUG_PREFERRED || debug) {
3112                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3113                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3114                            + "\n  component=" + ppa.mComponent);
3115                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3116                }
3117                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3118                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3119                if (DEBUG_PREFERRED || debug) {
3120                    Slog.v(TAG, "Found persistent preferred activity:");
3121                    if (ai != null) {
3122                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3123                    } else {
3124                        Slog.v(TAG, "  null");
3125                    }
3126                }
3127                if (ai == null) {
3128                    // This previously registered persistent preferred activity
3129                    // component is no longer known. Ignore it and do NOT remove it.
3130                    continue;
3131                }
3132                for (int j=0; j<N; j++) {
3133                    final ResolveInfo ri = query.get(j);
3134                    if (!ri.activityInfo.applicationInfo.packageName
3135                            .equals(ai.applicationInfo.packageName)) {
3136                        continue;
3137                    }
3138                    if (!ri.activityInfo.name.equals(ai.name)) {
3139                        continue;
3140                    }
3141                    //  Found a persistent preference that can handle the intent.
3142                    if (DEBUG_PREFERRED || debug) {
3143                        Slog.v(TAG, "Returning persistent preferred activity: " +
3144                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3145                    }
3146                    return ri;
3147                }
3148            }
3149        }
3150        return null;
3151    }
3152
3153    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3154            List<ResolveInfo> query, int priority, boolean always,
3155            boolean removeMatches, boolean debug, int userId) {
3156        if (!sUserManager.exists(userId)) return null;
3157        // writer
3158        synchronized (mPackages) {
3159            if (intent.getSelector() != null) {
3160                intent = intent.getSelector();
3161            }
3162            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3163
3164            // Try to find a matching persistent preferred activity.
3165            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3166                    debug, userId);
3167
3168            // If a persistent preferred activity matched, use it.
3169            if (pri != null) {
3170                return pri;
3171            }
3172
3173            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3174            // Get the list of preferred activities that handle the intent
3175            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3176            List<PreferredActivity> prefs = pir != null
3177                    ? pir.queryIntent(intent, resolvedType,
3178                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3179                    : null;
3180            if (prefs != null && prefs.size() > 0) {
3181                boolean changed = false;
3182                try {
3183                    // First figure out how good the original match set is.
3184                    // We will only allow preferred activities that came
3185                    // from the same match quality.
3186                    int match = 0;
3187
3188                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3189
3190                    final int N = query.size();
3191                    for (int j=0; j<N; j++) {
3192                        final ResolveInfo ri = query.get(j);
3193                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3194                                + ": 0x" + Integer.toHexString(match));
3195                        if (ri.match > match) {
3196                            match = ri.match;
3197                        }
3198                    }
3199
3200                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3201                            + Integer.toHexString(match));
3202
3203                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3204                    final int M = prefs.size();
3205                    for (int i=0; i<M; i++) {
3206                        final PreferredActivity pa = prefs.get(i);
3207                        if (DEBUG_PREFERRED || debug) {
3208                            Slog.v(TAG, "Checking PreferredActivity ds="
3209                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3210                                    + "\n  component=" + pa.mPref.mComponent);
3211                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3212                        }
3213                        if (pa.mPref.mMatch != match) {
3214                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3215                                    + Integer.toHexString(pa.mPref.mMatch));
3216                            continue;
3217                        }
3218                        // If it's not an "always" type preferred activity and that's what we're
3219                        // looking for, skip it.
3220                        if (always && !pa.mPref.mAlways) {
3221                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3222                            continue;
3223                        }
3224                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3225                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3226                        if (DEBUG_PREFERRED || debug) {
3227                            Slog.v(TAG, "Found preferred activity:");
3228                            if (ai != null) {
3229                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3230                            } else {
3231                                Slog.v(TAG, "  null");
3232                            }
3233                        }
3234                        if (ai == null) {
3235                            // This previously registered preferred activity
3236                            // component is no longer known.  Most likely an update
3237                            // to the app was installed and in the new version this
3238                            // component no longer exists.  Clean it up by removing
3239                            // it from the preferred activities list, and skip it.
3240                            Slog.w(TAG, "Removing dangling preferred activity: "
3241                                    + pa.mPref.mComponent);
3242                            pir.removeFilter(pa);
3243                            changed = true;
3244                            continue;
3245                        }
3246                        for (int j=0; j<N; j++) {
3247                            final ResolveInfo ri = query.get(j);
3248                            if (!ri.activityInfo.applicationInfo.packageName
3249                                    .equals(ai.applicationInfo.packageName)) {
3250                                continue;
3251                            }
3252                            if (!ri.activityInfo.name.equals(ai.name)) {
3253                                continue;
3254                            }
3255
3256                            if (removeMatches) {
3257                                pir.removeFilter(pa);
3258                                changed = true;
3259                                if (DEBUG_PREFERRED) {
3260                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3261                                }
3262                                break;
3263                            }
3264
3265                            // Okay we found a previously set preferred or last chosen app.
3266                            // If the result set is different from when this
3267                            // was created, we need to clear it and re-ask the
3268                            // user their preference, if we're looking for an "always" type entry.
3269                            if (always && !pa.mPref.sameSet(query, priority)) {
3270                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3271                                        + intent + " type " + resolvedType);
3272                                if (DEBUG_PREFERRED) {
3273                                    Slog.v(TAG, "Removing preferred activity since set changed "
3274                                            + pa.mPref.mComponent);
3275                                }
3276                                pir.removeFilter(pa);
3277                                // Re-add the filter as a "last chosen" entry (!always)
3278                                PreferredActivity lastChosen = new PreferredActivity(
3279                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3280                                pir.addFilter(lastChosen);
3281                                changed = true;
3282                                return null;
3283                            }
3284
3285                            // Yay! Either the set matched or we're looking for the last chosen
3286                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3287                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3288                            return ri;
3289                        }
3290                    }
3291                } finally {
3292                    if (changed) {
3293                        if (DEBUG_PREFERRED) {
3294                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3295                        }
3296                        scheduleWritePackageRestrictionsLocked(userId);
3297                    }
3298                }
3299            }
3300        }
3301        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3302        return null;
3303    }
3304
3305    /*
3306     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3307     */
3308    @Override
3309    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3310            int targetUserId) {
3311        mContext.enforceCallingOrSelfPermission(
3312                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3313        List<CrossProfileIntentFilter> matches =
3314                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3315        if (matches != null) {
3316            int size = matches.size();
3317            for (int i = 0; i < size; i++) {
3318                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3319            }
3320        }
3321        return false;
3322    }
3323
3324    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3325            String resolvedType, int userId) {
3326        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3327        if (resolver != null) {
3328            return resolver.queryIntent(intent, resolvedType, false, userId);
3329        }
3330        return null;
3331    }
3332
3333    @Override
3334    public List<ResolveInfo> queryIntentActivities(Intent intent,
3335            String resolvedType, int flags, int userId) {
3336        if (!sUserManager.exists(userId)) return Collections.emptyList();
3337        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3338        ComponentName comp = intent.getComponent();
3339        if (comp == null) {
3340            if (intent.getSelector() != null) {
3341                intent = intent.getSelector();
3342                comp = intent.getComponent();
3343            }
3344        }
3345
3346        if (comp != null) {
3347            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3348            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3349            if (ai != null) {
3350                final ResolveInfo ri = new ResolveInfo();
3351                ri.activityInfo = ai;
3352                list.add(ri);
3353            }
3354            return list;
3355        }
3356
3357        // reader
3358        synchronized (mPackages) {
3359            final String pkgName = intent.getPackage();
3360            if (pkgName == null) {
3361                List<CrossProfileIntentFilter> matchingFilters =
3362                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3363                // Check for results that need to skip the current profile.
3364                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3365                        resolvedType, flags, userId);
3366                if (resolveInfo != null) {
3367                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3368                    result.add(resolveInfo);
3369                    return result;
3370                }
3371                // Check for cross profile results.
3372                resolveInfo = queryCrossProfileIntents(
3373                        matchingFilters, intent, resolvedType, flags, userId);
3374
3375                // Check for results in the current profile.
3376                List<ResolveInfo> result = mActivities.queryIntent(
3377                        intent, resolvedType, flags, userId);
3378                if (resolveInfo != null) {
3379                    result.add(resolveInfo);
3380                    Collections.sort(result, mResolvePrioritySorter);
3381                }
3382                return result;
3383            }
3384            final PackageParser.Package pkg = mPackages.get(pkgName);
3385            if (pkg != null) {
3386                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3387                        pkg.activities, userId);
3388            }
3389            return new ArrayList<ResolveInfo>();
3390        }
3391    }
3392
3393    private ResolveInfo querySkipCurrentProfileIntents(
3394            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3395            int flags, int sourceUserId) {
3396        if (matchingFilters != null) {
3397            int size = matchingFilters.size();
3398            for (int i = 0; i < size; i ++) {
3399                CrossProfileIntentFilter filter = matchingFilters.get(i);
3400                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3401                    // Checking if there are activities in the target user that can handle the
3402                    // intent.
3403                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3404                            flags, sourceUserId);
3405                    if (resolveInfo != null) {
3406                        return resolveInfo;
3407                    }
3408                }
3409            }
3410        }
3411        return null;
3412    }
3413
3414    // Return matching ResolveInfo if any for skip current profile intent filters.
3415    private ResolveInfo queryCrossProfileIntents(
3416            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3417            int flags, int sourceUserId) {
3418        if (matchingFilters != null) {
3419            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3420            // match the same intent. For performance reasons, it is better not to
3421            // run queryIntent twice for the same userId
3422            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3423            int size = matchingFilters.size();
3424            for (int i = 0; i < size; i++) {
3425                CrossProfileIntentFilter filter = matchingFilters.get(i);
3426                int targetUserId = filter.getTargetUserId();
3427                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3428                        && !alreadyTriedUserIds.get(targetUserId)) {
3429                    // Checking if there are activities in the target user that can handle the
3430                    // intent.
3431                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3432                            flags, sourceUserId);
3433                    if (resolveInfo != null) return resolveInfo;
3434                    alreadyTriedUserIds.put(targetUserId, true);
3435                }
3436            }
3437        }
3438        return null;
3439    }
3440
3441    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3442            String resolvedType, int flags, int sourceUserId) {
3443        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3444                resolvedType, flags, filter.getTargetUserId());
3445        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3446            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3447        }
3448        return null;
3449    }
3450
3451    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3452            int sourceUserId, int targetUserId) {
3453        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3454        String className;
3455        if (targetUserId == UserHandle.USER_OWNER) {
3456            className = FORWARD_INTENT_TO_USER_OWNER;
3457        } else {
3458            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3459        }
3460        ComponentName forwardingActivityComponentName = new ComponentName(
3461                mAndroidApplication.packageName, className);
3462        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3463                sourceUserId);
3464        if (targetUserId == UserHandle.USER_OWNER) {
3465            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3466            forwardingResolveInfo.noResourceId = true;
3467        }
3468        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3469        forwardingResolveInfo.priority = 0;
3470        forwardingResolveInfo.preferredOrder = 0;
3471        forwardingResolveInfo.match = 0;
3472        forwardingResolveInfo.isDefault = true;
3473        forwardingResolveInfo.filter = filter;
3474        forwardingResolveInfo.targetUserId = targetUserId;
3475        return forwardingResolveInfo;
3476    }
3477
3478    @Override
3479    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3480            Intent[] specifics, String[] specificTypes, Intent intent,
3481            String resolvedType, int flags, int userId) {
3482        if (!sUserManager.exists(userId)) return Collections.emptyList();
3483        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3484                false, "query intent activity options");
3485        final String resultsAction = intent.getAction();
3486
3487        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3488                | PackageManager.GET_RESOLVED_FILTER, userId);
3489
3490        if (DEBUG_INTENT_MATCHING) {
3491            Log.v(TAG, "Query " + intent + ": " + results);
3492        }
3493
3494        int specificsPos = 0;
3495        int N;
3496
3497        // todo: note that the algorithm used here is O(N^2).  This
3498        // isn't a problem in our current environment, but if we start running
3499        // into situations where we have more than 5 or 10 matches then this
3500        // should probably be changed to something smarter...
3501
3502        // First we go through and resolve each of the specific items
3503        // that were supplied, taking care of removing any corresponding
3504        // duplicate items in the generic resolve list.
3505        if (specifics != null) {
3506            for (int i=0; i<specifics.length; i++) {
3507                final Intent sintent = specifics[i];
3508                if (sintent == null) {
3509                    continue;
3510                }
3511
3512                if (DEBUG_INTENT_MATCHING) {
3513                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3514                }
3515
3516                String action = sintent.getAction();
3517                if (resultsAction != null && resultsAction.equals(action)) {
3518                    // If this action was explicitly requested, then don't
3519                    // remove things that have it.
3520                    action = null;
3521                }
3522
3523                ResolveInfo ri = null;
3524                ActivityInfo ai = null;
3525
3526                ComponentName comp = sintent.getComponent();
3527                if (comp == null) {
3528                    ri = resolveIntent(
3529                        sintent,
3530                        specificTypes != null ? specificTypes[i] : null,
3531                            flags, userId);
3532                    if (ri == null) {
3533                        continue;
3534                    }
3535                    if (ri == mResolveInfo) {
3536                        // ACK!  Must do something better with this.
3537                    }
3538                    ai = ri.activityInfo;
3539                    comp = new ComponentName(ai.applicationInfo.packageName,
3540                            ai.name);
3541                } else {
3542                    ai = getActivityInfo(comp, flags, userId);
3543                    if (ai == null) {
3544                        continue;
3545                    }
3546                }
3547
3548                // Look for any generic query activities that are duplicates
3549                // of this specific one, and remove them from the results.
3550                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3551                N = results.size();
3552                int j;
3553                for (j=specificsPos; j<N; j++) {
3554                    ResolveInfo sri = results.get(j);
3555                    if ((sri.activityInfo.name.equals(comp.getClassName())
3556                            && sri.activityInfo.applicationInfo.packageName.equals(
3557                                    comp.getPackageName()))
3558                        || (action != null && sri.filter.matchAction(action))) {
3559                        results.remove(j);
3560                        if (DEBUG_INTENT_MATCHING) Log.v(
3561                            TAG, "Removing duplicate item from " + j
3562                            + " due to specific " + specificsPos);
3563                        if (ri == null) {
3564                            ri = sri;
3565                        }
3566                        j--;
3567                        N--;
3568                    }
3569                }
3570
3571                // Add this specific item to its proper place.
3572                if (ri == null) {
3573                    ri = new ResolveInfo();
3574                    ri.activityInfo = ai;
3575                }
3576                results.add(specificsPos, ri);
3577                ri.specificIndex = i;
3578                specificsPos++;
3579            }
3580        }
3581
3582        // Now we go through the remaining generic results and remove any
3583        // duplicate actions that are found here.
3584        N = results.size();
3585        for (int i=specificsPos; i<N-1; i++) {
3586            final ResolveInfo rii = results.get(i);
3587            if (rii.filter == null) {
3588                continue;
3589            }
3590
3591            // Iterate over all of the actions of this result's intent
3592            // filter...  typically this should be just one.
3593            final Iterator<String> it = rii.filter.actionsIterator();
3594            if (it == null) {
3595                continue;
3596            }
3597            while (it.hasNext()) {
3598                final String action = it.next();
3599                if (resultsAction != null && resultsAction.equals(action)) {
3600                    // If this action was explicitly requested, then don't
3601                    // remove things that have it.
3602                    continue;
3603                }
3604                for (int j=i+1; j<N; j++) {
3605                    final ResolveInfo rij = results.get(j);
3606                    if (rij.filter != null && rij.filter.hasAction(action)) {
3607                        results.remove(j);
3608                        if (DEBUG_INTENT_MATCHING) Log.v(
3609                            TAG, "Removing duplicate item from " + j
3610                            + " due to action " + action + " at " + i);
3611                        j--;
3612                        N--;
3613                    }
3614                }
3615            }
3616
3617            // If the caller didn't request filter information, drop it now
3618            // so we don't have to marshall/unmarshall it.
3619            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3620                rii.filter = null;
3621            }
3622        }
3623
3624        // Filter out the caller activity if so requested.
3625        if (caller != null) {
3626            N = results.size();
3627            for (int i=0; i<N; i++) {
3628                ActivityInfo ainfo = results.get(i).activityInfo;
3629                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3630                        && caller.getClassName().equals(ainfo.name)) {
3631                    results.remove(i);
3632                    break;
3633                }
3634            }
3635        }
3636
3637        // If the caller didn't request filter information,
3638        // drop them now so we don't have to
3639        // marshall/unmarshall it.
3640        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3641            N = results.size();
3642            for (int i=0; i<N; i++) {
3643                results.get(i).filter = null;
3644            }
3645        }
3646
3647        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3648        return results;
3649    }
3650
3651    @Override
3652    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3653            int userId) {
3654        if (!sUserManager.exists(userId)) return Collections.emptyList();
3655        ComponentName comp = intent.getComponent();
3656        if (comp == null) {
3657            if (intent.getSelector() != null) {
3658                intent = intent.getSelector();
3659                comp = intent.getComponent();
3660            }
3661        }
3662        if (comp != null) {
3663            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3664            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3665            if (ai != null) {
3666                ResolveInfo ri = new ResolveInfo();
3667                ri.activityInfo = ai;
3668                list.add(ri);
3669            }
3670            return list;
3671        }
3672
3673        // reader
3674        synchronized (mPackages) {
3675            String pkgName = intent.getPackage();
3676            if (pkgName == null) {
3677                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3678            }
3679            final PackageParser.Package pkg = mPackages.get(pkgName);
3680            if (pkg != null) {
3681                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3682                        userId);
3683            }
3684            return null;
3685        }
3686    }
3687
3688    @Override
3689    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3690        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3691        if (!sUserManager.exists(userId)) return null;
3692        if (query != null) {
3693            if (query.size() >= 1) {
3694                // If there is more than one service with the same priority,
3695                // just arbitrarily pick the first one.
3696                return query.get(0);
3697            }
3698        }
3699        return null;
3700    }
3701
3702    @Override
3703    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3704            int userId) {
3705        if (!sUserManager.exists(userId)) return Collections.emptyList();
3706        ComponentName comp = intent.getComponent();
3707        if (comp == null) {
3708            if (intent.getSelector() != null) {
3709                intent = intent.getSelector();
3710                comp = intent.getComponent();
3711            }
3712        }
3713        if (comp != null) {
3714            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3715            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3716            if (si != null) {
3717                final ResolveInfo ri = new ResolveInfo();
3718                ri.serviceInfo = si;
3719                list.add(ri);
3720            }
3721            return list;
3722        }
3723
3724        // reader
3725        synchronized (mPackages) {
3726            String pkgName = intent.getPackage();
3727            if (pkgName == null) {
3728                return mServices.queryIntent(intent, resolvedType, flags, userId);
3729            }
3730            final PackageParser.Package pkg = mPackages.get(pkgName);
3731            if (pkg != null) {
3732                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3733                        userId);
3734            }
3735            return null;
3736        }
3737    }
3738
3739    @Override
3740    public List<ResolveInfo> queryIntentContentProviders(
3741            Intent intent, String resolvedType, int flags, int userId) {
3742        if (!sUserManager.exists(userId)) return Collections.emptyList();
3743        ComponentName comp = intent.getComponent();
3744        if (comp == null) {
3745            if (intent.getSelector() != null) {
3746                intent = intent.getSelector();
3747                comp = intent.getComponent();
3748            }
3749        }
3750        if (comp != null) {
3751            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3752            final ProviderInfo pi = getProviderInfo(comp, flags, userId);
3753            if (pi != null) {
3754                final ResolveInfo ri = new ResolveInfo();
3755                ri.providerInfo = pi;
3756                list.add(ri);
3757            }
3758            return list;
3759        }
3760
3761        // reader
3762        synchronized (mPackages) {
3763            String pkgName = intent.getPackage();
3764            if (pkgName == null) {
3765                return mProviders.queryIntent(intent, resolvedType, flags, userId);
3766            }
3767            final PackageParser.Package pkg = mPackages.get(pkgName);
3768            if (pkg != null) {
3769                return mProviders.queryIntentForPackage(
3770                        intent, resolvedType, flags, pkg.providers, userId);
3771            }
3772            return null;
3773        }
3774    }
3775
3776    @Override
3777    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3778        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3779
3780        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3781
3782        // writer
3783        synchronized (mPackages) {
3784            ArrayList<PackageInfo> list;
3785            if (listUninstalled) {
3786                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3787                for (PackageSetting ps : mSettings.mPackages.values()) {
3788                    PackageInfo pi;
3789                    if (ps.pkg != null) {
3790                        pi = generatePackageInfo(ps.pkg, flags, userId);
3791                    } else {
3792                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3793                    }
3794                    if (pi != null) {
3795                        list.add(pi);
3796                    }
3797                }
3798            } else {
3799                list = new ArrayList<PackageInfo>(mPackages.size());
3800                for (PackageParser.Package p : mPackages.values()) {
3801                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3802                    if (pi != null) {
3803                        list.add(pi);
3804                    }
3805                }
3806            }
3807
3808            return new ParceledListSlice<PackageInfo>(list);
3809        }
3810    }
3811
3812    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3813            String[] permissions, boolean[] tmp, int flags, int userId) {
3814        int numMatch = 0;
3815        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3816        for (int i=0; i<permissions.length; i++) {
3817            if (gp.grantedPermissions.contains(permissions[i])) {
3818                tmp[i] = true;
3819                numMatch++;
3820            } else {
3821                tmp[i] = false;
3822            }
3823        }
3824        if (numMatch == 0) {
3825            return;
3826        }
3827        PackageInfo pi;
3828        if (ps.pkg != null) {
3829            pi = generatePackageInfo(ps.pkg, flags, userId);
3830        } else {
3831            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3832        }
3833        // The above might return null in cases of uninstalled apps or install-state
3834        // skew across users/profiles.
3835        if (pi != null) {
3836            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3837                if (numMatch == permissions.length) {
3838                    pi.requestedPermissions = permissions;
3839                } else {
3840                    pi.requestedPermissions = new String[numMatch];
3841                    numMatch = 0;
3842                    for (int i=0; i<permissions.length; i++) {
3843                        if (tmp[i]) {
3844                            pi.requestedPermissions[numMatch] = permissions[i];
3845                            numMatch++;
3846                        }
3847                    }
3848                }
3849            }
3850            list.add(pi);
3851        }
3852    }
3853
3854    @Override
3855    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3856            String[] permissions, int flags, int userId) {
3857        if (!sUserManager.exists(userId)) return null;
3858        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3859
3860        // writer
3861        synchronized (mPackages) {
3862            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3863            boolean[] tmpBools = new boolean[permissions.length];
3864            if (listUninstalled) {
3865                for (PackageSetting ps : mSettings.mPackages.values()) {
3866                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3867                }
3868            } else {
3869                for (PackageParser.Package pkg : mPackages.values()) {
3870                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3871                    if (ps != null) {
3872                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3873                                userId);
3874                    }
3875                }
3876            }
3877
3878            return new ParceledListSlice<PackageInfo>(list);
3879        }
3880    }
3881
3882    @Override
3883    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3884        if (!sUserManager.exists(userId)) return null;
3885        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3886
3887        // writer
3888        synchronized (mPackages) {
3889            ArrayList<ApplicationInfo> list;
3890            if (listUninstalled) {
3891                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3892                for (PackageSetting ps : mSettings.mPackages.values()) {
3893                    ApplicationInfo ai;
3894                    if (ps.pkg != null) {
3895                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3896                                ps.readUserState(userId), userId);
3897                    } else {
3898                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3899                    }
3900                    if (ai != null) {
3901                        list.add(ai);
3902                    }
3903                }
3904            } else {
3905                list = new ArrayList<ApplicationInfo>(mPackages.size());
3906                for (PackageParser.Package p : mPackages.values()) {
3907                    if (p.mExtras != null) {
3908                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3909                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3910                        if (ai != null) {
3911                            list.add(ai);
3912                        }
3913                    }
3914                }
3915            }
3916
3917            return new ParceledListSlice<ApplicationInfo>(list);
3918        }
3919    }
3920
3921    public List<ApplicationInfo> getPersistentApplications(int flags) {
3922        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3923
3924        // reader
3925        synchronized (mPackages) {
3926            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3927            final int userId = UserHandle.getCallingUserId();
3928            while (i.hasNext()) {
3929                final PackageParser.Package p = i.next();
3930                if (p.applicationInfo != null
3931                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3932                        && (!mSafeMode || isSystemApp(p))) {
3933                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3934                    if (ps != null) {
3935                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3936                                ps.readUserState(userId), userId);
3937                        if (ai != null) {
3938                            finalList.add(ai);
3939                        }
3940                    }
3941                }
3942            }
3943        }
3944
3945        return finalList;
3946    }
3947
3948    @Override
3949    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3950        if (!sUserManager.exists(userId)) return null;
3951        // reader
3952        synchronized (mPackages) {
3953            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3954            PackageSetting ps = provider != null
3955                    ? mSettings.mPackages.get(provider.owner.packageName)
3956                    : null;
3957            return ps != null
3958                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3959                    && (!mSafeMode || (provider.info.applicationInfo.flags
3960                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3961                    ? PackageParser.generateProviderInfo(provider, flags,
3962                            ps.readUserState(userId), userId)
3963                    : null;
3964        }
3965    }
3966
3967    /**
3968     * @deprecated
3969     */
3970    @Deprecated
3971    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
3972        // reader
3973        synchronized (mPackages) {
3974            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
3975                    .entrySet().iterator();
3976            final int userId = UserHandle.getCallingUserId();
3977            while (i.hasNext()) {
3978                Map.Entry<String, PackageParser.Provider> entry = i.next();
3979                PackageParser.Provider p = entry.getValue();
3980                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3981
3982                if (ps != null && p.syncable
3983                        && (!mSafeMode || (p.info.applicationInfo.flags
3984                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
3985                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
3986                            ps.readUserState(userId), userId);
3987                    if (info != null) {
3988                        outNames.add(entry.getKey());
3989                        outInfo.add(info);
3990                    }
3991                }
3992            }
3993        }
3994    }
3995
3996    @Override
3997    public List<ProviderInfo> queryContentProviders(String processName,
3998            int uid, int flags) {
3999        ArrayList<ProviderInfo> finalList = null;
4000        // reader
4001        synchronized (mPackages) {
4002            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
4003            final int userId = processName != null ?
4004                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
4005            while (i.hasNext()) {
4006                final PackageParser.Provider p = i.next();
4007                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
4008                if (ps != null && p.info.authority != null
4009                        && (processName == null
4010                                || (p.info.processName.equals(processName)
4011                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
4012                        && mSettings.isEnabledLPr(p.info, flags, userId)
4013                        && (!mSafeMode
4014                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
4015                    if (finalList == null) {
4016                        finalList = new ArrayList<ProviderInfo>(3);
4017                    }
4018                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
4019                            ps.readUserState(userId), userId);
4020                    if (info != null) {
4021                        finalList.add(info);
4022                    }
4023                }
4024            }
4025        }
4026
4027        if (finalList != null) {
4028            Collections.sort(finalList, mProviderInitOrderSorter);
4029        }
4030
4031        return finalList;
4032    }
4033
4034    @Override
4035    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
4036            int flags) {
4037        // reader
4038        synchronized (mPackages) {
4039            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4040            return PackageParser.generateInstrumentationInfo(i, flags);
4041        }
4042    }
4043
4044    @Override
4045    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4046            int flags) {
4047        ArrayList<InstrumentationInfo> finalList =
4048            new ArrayList<InstrumentationInfo>();
4049
4050        // reader
4051        synchronized (mPackages) {
4052            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4053            while (i.hasNext()) {
4054                final PackageParser.Instrumentation p = i.next();
4055                if (targetPackage == null
4056                        || targetPackage.equals(p.info.targetPackage)) {
4057                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4058                            flags);
4059                    if (ii != null) {
4060                        finalList.add(ii);
4061                    }
4062                }
4063            }
4064        }
4065
4066        return finalList;
4067    }
4068
4069    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4070        ArrayMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4071        if (overlays == null) {
4072            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4073            return;
4074        }
4075        for (PackageParser.Package opkg : overlays.values()) {
4076            // Not much to do if idmap fails: we already logged the error
4077            // and we certainly don't want to abort installation of pkg simply
4078            // because an overlay didn't fit properly. For these reasons,
4079            // ignore the return value of createIdmapForPackagePairLI.
4080            createIdmapForPackagePairLI(pkg, opkg);
4081        }
4082    }
4083
4084    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4085            PackageParser.Package opkg) {
4086        if (!opkg.mTrustedOverlay) {
4087            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4088                    opkg.baseCodePath + ": overlay not trusted");
4089            return false;
4090        }
4091        ArrayMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4092        if (overlaySet == null) {
4093            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4094                    opkg.baseCodePath + " but target package has no known overlays");
4095            return false;
4096        }
4097        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4098        // TODO: generate idmap for split APKs
4099        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4100            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4101                    + opkg.baseCodePath);
4102            return false;
4103        }
4104        PackageParser.Package[] overlayArray =
4105            overlaySet.values().toArray(new PackageParser.Package[0]);
4106        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4107            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4108                return p1.mOverlayPriority - p2.mOverlayPriority;
4109            }
4110        };
4111        Arrays.sort(overlayArray, cmp);
4112
4113        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4114        int i = 0;
4115        for (PackageParser.Package p : overlayArray) {
4116            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4117        }
4118        return true;
4119    }
4120
4121    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4122        final File[] files = dir.listFiles();
4123        if (ArrayUtils.isEmpty(files)) {
4124            Log.d(TAG, "No files in app dir " + dir);
4125            return;
4126        }
4127
4128        if (DEBUG_PACKAGE_SCANNING) {
4129            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4130                    + " flags=0x" + Integer.toHexString(parseFlags));
4131        }
4132
4133        for (File file : files) {
4134            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4135                    && !PackageInstallerService.isStageName(file.getName());
4136            if (!isPackage) {
4137                // Ignore entries which are not packages
4138                continue;
4139            }
4140            try {
4141                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4142                        scanFlags, currentTime, null);
4143            } catch (PackageManagerException e) {
4144                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4145
4146                // Delete invalid userdata apps
4147                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4148                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4149                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4150                    if (file.isDirectory()) {
4151                        FileUtils.deleteContents(file);
4152                    }
4153                    file.delete();
4154                }
4155            }
4156        }
4157    }
4158
4159    private static File getSettingsProblemFile() {
4160        File dataDir = Environment.getDataDirectory();
4161        File systemDir = new File(dataDir, "system");
4162        File fname = new File(systemDir, "uiderrors.txt");
4163        return fname;
4164    }
4165
4166    static void reportSettingsProblem(int priority, String msg) {
4167        logCriticalInfo(priority, msg);
4168    }
4169
4170    static void logCriticalInfo(int priority, String msg) {
4171        Slog.println(priority, TAG, msg);
4172        EventLogTags.writePmCriticalInfo(msg);
4173        try {
4174            File fname = getSettingsProblemFile();
4175            FileOutputStream out = new FileOutputStream(fname, true);
4176            PrintWriter pw = new FastPrintWriter(out);
4177            SimpleDateFormat formatter = new SimpleDateFormat();
4178            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4179            pw.println(dateString + ": " + msg);
4180            pw.close();
4181            FileUtils.setPermissions(
4182                    fname.toString(),
4183                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4184                    -1, -1);
4185        } catch (java.io.IOException e) {
4186        }
4187    }
4188
4189    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4190            PackageParser.Package pkg, File srcFile, int parseFlags)
4191            throws PackageManagerException {
4192        if (ps != null
4193                && ps.codePath.equals(srcFile)
4194                && ps.timeStamp == srcFile.lastModified()
4195                && !isCompatSignatureUpdateNeeded(pkg)
4196                && !isRecoverSignatureUpdateNeeded(pkg)) {
4197            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4198            if (ps.signatures.mSignatures != null
4199                    && ps.signatures.mSignatures.length != 0
4200                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4201                // Optimization: reuse the existing cached certificates
4202                // if the package appears to be unchanged.
4203                pkg.mSignatures = ps.signatures.mSignatures;
4204                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4205                synchronized (mPackages) {
4206                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4207                }
4208                return;
4209            }
4210
4211            Slog.w(TAG, "PackageSetting for " + ps.name
4212                    + " is missing signatures.  Collecting certs again to recover them.");
4213        } else {
4214            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4215        }
4216
4217        try {
4218            pp.collectCertificates(pkg, parseFlags);
4219            pp.collectManifestDigest(pkg);
4220        } catch (PackageParserException e) {
4221            throw PackageManagerException.from(e);
4222        }
4223    }
4224
4225    /*
4226     *  Scan a package and return the newly parsed package.
4227     *  Returns null in case of errors and the error code is stored in mLastScanError
4228     */
4229    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4230            long currentTime, UserHandle user) throws PackageManagerException {
4231        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4232        parseFlags |= mDefParseFlags;
4233        PackageParser pp = new PackageParser();
4234        pp.setSeparateProcesses(mSeparateProcesses);
4235        pp.setOnlyCoreApps(mOnlyCore);
4236        pp.setDisplayMetrics(mMetrics);
4237
4238        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4239            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4240        }
4241
4242        final PackageParser.Package pkg;
4243        try {
4244            pkg = pp.parsePackage(scanFile, parseFlags);
4245        } catch (PackageParserException e) {
4246            throw PackageManagerException.from(e);
4247        }
4248
4249        PackageSetting ps = null;
4250        PackageSetting updatedPkg;
4251        // reader
4252        synchronized (mPackages) {
4253            // Look to see if we already know about this package.
4254            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4255            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4256                // This package has been renamed to its original name.  Let's
4257                // use that.
4258                ps = mSettings.peekPackageLPr(oldName);
4259            }
4260            // If there was no original package, see one for the real package name.
4261            if (ps == null) {
4262                ps = mSettings.peekPackageLPr(pkg.packageName);
4263            }
4264            // Check to see if this package could be hiding/updating a system
4265            // package.  Must look for it either under the original or real
4266            // package name depending on our state.
4267            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4268            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4269        }
4270        boolean updatedPkgBetter = false;
4271        // First check if this is a system package that may involve an update
4272        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4273            if (ps != null && !ps.codePath.equals(scanFile)) {
4274                // The path has changed from what was last scanned...  check the
4275                // version of the new path against what we have stored to determine
4276                // what to do.
4277                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4278                if (pkg.mVersionCode < ps.versionCode) {
4279                    // The system package has been updated and the code path does not match
4280                    // Ignore entry. Skip it.
4281                    Slog.i(TAG, "Package " + ps.name + " at " + scanFile
4282                            + " ignored: updated version " + ps.versionCode
4283                            + " better than this " + pkg.mVersionCode);
4284                    if (!updatedPkg.codePath.equals(scanFile)) {
4285                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4286                                + ps.name + " changing from " + updatedPkg.codePathString
4287                                + " to " + scanFile);
4288                        updatedPkg.codePath = scanFile;
4289                        updatedPkg.codePathString = scanFile.toString();
4290                        updatedPkg.resourcePath = scanFile;
4291                        updatedPkg.resourcePathString = scanFile.toString();
4292                        // This is the point at which we know that the system-disk APK
4293                        // for this package has moved during a reboot (e.g. due to an OTA),
4294                        // so we need to reevaluate it for privilege policy.
4295                        if (locationIsPrivileged(scanFile)) {
4296                            updatedPkg.pkgFlags |= ApplicationInfo.FLAG_PRIVILEGED;
4297                        }
4298                    }
4299                    updatedPkg.pkg = pkg;
4300                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4301                } else {
4302                    // The current app on the system partition is better than
4303                    // what we have updated to on the data partition; switch
4304                    // back to the system partition version.
4305                    // At this point, its safely assumed that package installation for
4306                    // apps in system partition will go through. If not there won't be a working
4307                    // version of the app
4308                    // writer
4309                    synchronized (mPackages) {
4310                        // Just remove the loaded entries from package lists.
4311                        mPackages.remove(ps.name);
4312                    }
4313
4314                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4315                            + " reverting from " + ps.codePathString
4316                            + ": new version " + pkg.mVersionCode
4317                            + " better than installed " + ps.versionCode);
4318
4319                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4320                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4321                            getAppDexInstructionSets(ps));
4322                    synchronized (mInstallLock) {
4323                        args.cleanUpResourcesLI();
4324                    }
4325                    synchronized (mPackages) {
4326                        mSettings.enableSystemPackageLPw(ps.name);
4327                    }
4328                    updatedPkgBetter = true;
4329                }
4330            }
4331        }
4332
4333        if (updatedPkg != null) {
4334            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4335            // initially
4336            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4337
4338            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4339            // flag set initially
4340            if ((updatedPkg.pkgFlags & ApplicationInfo.FLAG_PRIVILEGED) != 0) {
4341                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4342            }
4343        }
4344
4345        // Verify certificates against what was last scanned
4346        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4347
4348        /*
4349         * A new system app appeared, but we already had a non-system one of the
4350         * same name installed earlier.
4351         */
4352        boolean shouldHideSystemApp = false;
4353        if (updatedPkg == null && ps != null
4354                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4355            /*
4356             * Check to make sure the signatures match first. If they don't,
4357             * wipe the installed application and its data.
4358             */
4359            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4360                    != PackageManager.SIGNATURE_MATCH) {
4361                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4362                        + " signatures don't match existing userdata copy; removing");
4363                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4364                ps = null;
4365            } else {
4366                /*
4367                 * If the newly-added system app is an older version than the
4368                 * already installed version, hide it. It will be scanned later
4369                 * and re-added like an update.
4370                 */
4371                if (pkg.mVersionCode < ps.versionCode) {
4372                    shouldHideSystemApp = true;
4373                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4374                            + " but new version " + pkg.mVersionCode + " better than installed "
4375                            + ps.versionCode + "; hiding system");
4376                } else {
4377                    /*
4378                     * The newly found system app is a newer version that the
4379                     * one previously installed. Simply remove the
4380                     * already-installed application and replace it with our own
4381                     * while keeping the application data.
4382                     */
4383                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4384                            + " reverting from " + ps.codePathString + ": new version "
4385                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4386                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4387                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4388                            getAppDexInstructionSets(ps));
4389                    synchronized (mInstallLock) {
4390                        args.cleanUpResourcesLI();
4391                    }
4392                }
4393            }
4394        }
4395
4396        // The apk is forward locked (not public) if its code and resources
4397        // are kept in different files. (except for app in either system or
4398        // vendor path).
4399        // TODO grab this value from PackageSettings
4400        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4401            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4402                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4403            }
4404        }
4405
4406        // TODO: extend to support forward-locked splits
4407        String resourcePath = null;
4408        String baseResourcePath = null;
4409        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4410            if (ps != null && ps.resourcePathString != null) {
4411                resourcePath = ps.resourcePathString;
4412                baseResourcePath = ps.resourcePathString;
4413            } else {
4414                // Should not happen at all. Just log an error.
4415                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4416            }
4417        } else {
4418            resourcePath = pkg.codePath;
4419            baseResourcePath = pkg.baseCodePath;
4420        }
4421
4422        // Set application objects path explicitly.
4423        pkg.applicationInfo.setCodePath(pkg.codePath);
4424        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4425        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4426        pkg.applicationInfo.setResourcePath(resourcePath);
4427        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4428        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4429
4430        // Note that we invoke the following method only if we are about to unpack an application
4431        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4432                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4433
4434        /*
4435         * If the system app should be overridden by a previously installed
4436         * data, hide the system app now and let the /data/app scan pick it up
4437         * again.
4438         */
4439        if (shouldHideSystemApp) {
4440            synchronized (mPackages) {
4441                /*
4442                 * We have to grant systems permissions before we hide, because
4443                 * grantPermissions will assume the package update is trying to
4444                 * expand its permissions.
4445                 */
4446                grantPermissionsLPw(pkg, true, pkg.packageName);
4447                mSettings.disableSystemPackageLPw(pkg.packageName);
4448            }
4449        }
4450
4451        return scannedPkg;
4452    }
4453
4454    private static String fixProcessName(String defProcessName,
4455            String processName, int uid) {
4456        if (processName == null) {
4457            return defProcessName;
4458        }
4459        return processName;
4460    }
4461
4462    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4463            throws PackageManagerException {
4464        if (pkgSetting.signatures.mSignatures != null) {
4465            // Already existing package. Make sure signatures match
4466            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4467                    == PackageManager.SIGNATURE_MATCH;
4468            if (!match) {
4469                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4470                        == PackageManager.SIGNATURE_MATCH;
4471            }
4472            if (!match) {
4473                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4474                        == PackageManager.SIGNATURE_MATCH;
4475            }
4476            if (!match) {
4477                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4478                        + pkg.packageName + " signatures do not match the "
4479                        + "previously installed version; ignoring!");
4480            }
4481        }
4482
4483        // Check for shared user signatures
4484        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4485            // Already existing package. Make sure signatures match
4486            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4487                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4488            if (!match) {
4489                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4490                        == PackageManager.SIGNATURE_MATCH;
4491            }
4492            if (!match) {
4493                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4494                        == PackageManager.SIGNATURE_MATCH;
4495            }
4496            if (!match) {
4497                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4498                        "Package " + pkg.packageName
4499                        + " has no signatures that match those in shared user "
4500                        + pkgSetting.sharedUser.name + "; ignoring!");
4501            }
4502        }
4503    }
4504
4505    /**
4506     * Enforces that only the system UID or root's UID can call a method exposed
4507     * via Binder.
4508     *
4509     * @param message used as message if SecurityException is thrown
4510     * @throws SecurityException if the caller is not system or root
4511     */
4512    private static final void enforceSystemOrRoot(String message) {
4513        final int uid = Binder.getCallingUid();
4514        if (uid != Process.SYSTEM_UID && uid != 0) {
4515            throw new SecurityException(message);
4516        }
4517    }
4518
4519    @Override
4520    public void performBootDexOpt() {
4521        enforceSystemOrRoot("Only the system can request dexopt be performed");
4522
4523        final ArraySet<PackageParser.Package> pkgs;
4524        synchronized (mPackages) {
4525            pkgs = mDeferredDexOpt;
4526            mDeferredDexOpt = null;
4527        }
4528
4529        if (pkgs != null) {
4530            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4531            // in case the device runs out of space.
4532            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4533            // Give priority to core apps.
4534            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4535                PackageParser.Package pkg = it.next();
4536                if (pkg.coreApp) {
4537                    if (DEBUG_DEXOPT) {
4538                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4539                    }
4540                    sortedPkgs.add(pkg);
4541                    it.remove();
4542                }
4543            }
4544            // Give priority to system apps that listen for pre boot complete.
4545            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4546            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4547            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4548                PackageParser.Package pkg = it.next();
4549                if (pkgNames.contains(pkg.packageName)) {
4550                    if (DEBUG_DEXOPT) {
4551                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4552                    }
4553                    sortedPkgs.add(pkg);
4554                    it.remove();
4555                }
4556            }
4557            // Give priority to system apps.
4558            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4559                PackageParser.Package pkg = it.next();
4560                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4561                    if (DEBUG_DEXOPT) {
4562                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4563                    }
4564                    sortedPkgs.add(pkg);
4565                    it.remove();
4566                }
4567            }
4568            // Give priority to updated system apps.
4569            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4570                PackageParser.Package pkg = it.next();
4571                if (isUpdatedSystemApp(pkg)) {
4572                    if (DEBUG_DEXOPT) {
4573                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4574                    }
4575                    sortedPkgs.add(pkg);
4576                    it.remove();
4577                }
4578            }
4579            // Give priority to apps that listen for boot complete.
4580            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4581            pkgNames = getPackageNamesForIntent(intent);
4582            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4583                PackageParser.Package pkg = it.next();
4584                if (pkgNames.contains(pkg.packageName)) {
4585                    if (DEBUG_DEXOPT) {
4586                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4587                    }
4588                    sortedPkgs.add(pkg);
4589                    it.remove();
4590                }
4591            }
4592            // Filter out packages that aren't recently used.
4593            filterRecentlyUsedApps(pkgs);
4594            // Add all remaining apps.
4595            for (PackageParser.Package pkg : pkgs) {
4596                if (DEBUG_DEXOPT) {
4597                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4598                }
4599                sortedPkgs.add(pkg);
4600            }
4601
4602            // If we want to be lazy, filter everything that wasn't recently used.
4603            if (mLazyDexOpt) {
4604                filterRecentlyUsedApps(sortedPkgs);
4605            }
4606
4607            int i = 0;
4608            int total = sortedPkgs.size();
4609            File dataDir = Environment.getDataDirectory();
4610            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4611            if (lowThreshold == 0) {
4612                throw new IllegalStateException("Invalid low memory threshold");
4613            }
4614            for (PackageParser.Package pkg : sortedPkgs) {
4615                long usableSpace = dataDir.getUsableSpace();
4616                if (usableSpace < lowThreshold) {
4617                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4618                    break;
4619                }
4620                performBootDexOpt(pkg, ++i, total);
4621            }
4622        }
4623    }
4624
4625    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4626        // Filter out packages that aren't recently used.
4627        //
4628        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4629        // should do a full dexopt.
4630        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4631            int total = pkgs.size();
4632            int skipped = 0;
4633            long now = System.currentTimeMillis();
4634            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4635                PackageParser.Package pkg = i.next();
4636                long then = pkg.mLastPackageUsageTimeInMills;
4637                if (then + mDexOptLRUThresholdInMills < now) {
4638                    if (DEBUG_DEXOPT) {
4639                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4640                              ((then == 0) ? "never" : new Date(then)));
4641                    }
4642                    i.remove();
4643                    skipped++;
4644                }
4645            }
4646            if (DEBUG_DEXOPT) {
4647                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4648            }
4649        }
4650    }
4651
4652    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4653        List<ResolveInfo> ris = null;
4654        try {
4655            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4656                    intent, null, 0, UserHandle.USER_OWNER);
4657        } catch (RemoteException e) {
4658        }
4659        ArraySet<String> pkgNames = new ArraySet<String>();
4660        if (ris != null) {
4661            for (ResolveInfo ri : ris) {
4662                pkgNames.add(ri.activityInfo.packageName);
4663            }
4664        }
4665        return pkgNames;
4666    }
4667
4668    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4669        if (DEBUG_DEXOPT) {
4670            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4671        }
4672        if (!isFirstBoot()) {
4673            try {
4674                ActivityManagerNative.getDefault().showBootMessage(
4675                        mContext.getResources().getString(R.string.android_upgrading_apk,
4676                                curr, total), true);
4677            } catch (RemoteException e) {
4678            }
4679        }
4680        PackageParser.Package p = pkg;
4681        synchronized (mInstallLock) {
4682            performDexOptLI(p, null /* instruction sets */, false /* force dex */,
4683                            false /* defer */, true /* include dependencies */);
4684        }
4685    }
4686
4687    @Override
4688    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4689        return performDexOpt(packageName, instructionSet, false);
4690    }
4691
4692    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4693        if (info.primaryCpuAbi == null) {
4694            return getPreferredInstructionSet();
4695        }
4696
4697        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4698    }
4699
4700    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4701        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4702        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4703        if (!dexopt && !updateUsage) {
4704            // We aren't going to dexopt or update usage, so bail early.
4705            return false;
4706        }
4707        PackageParser.Package p;
4708        final String targetInstructionSet;
4709        synchronized (mPackages) {
4710            p = mPackages.get(packageName);
4711            if (p == null) {
4712                return false;
4713            }
4714            if (updateUsage) {
4715                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4716            }
4717            mPackageUsage.write(false);
4718            if (!dexopt) {
4719                // We aren't going to dexopt, so bail early.
4720                return false;
4721            }
4722
4723            targetInstructionSet = instructionSet != null ? instructionSet :
4724                    getPrimaryInstructionSet(p.applicationInfo);
4725            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4726                return false;
4727            }
4728        }
4729
4730        synchronized (mInstallLock) {
4731            final String[] instructionSets = new String[] { targetInstructionSet };
4732            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4733                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4734        }
4735    }
4736
4737    public ArraySet<String> getPackagesThatNeedDexOpt() {
4738        ArraySet<String> pkgs = null;
4739        synchronized (mPackages) {
4740            for (PackageParser.Package p : mPackages.values()) {
4741                if (DEBUG_DEXOPT) {
4742                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4743                }
4744                if (!p.mDexOptPerformed.isEmpty()) {
4745                    continue;
4746                }
4747                if (pkgs == null) {
4748                    pkgs = new ArraySet<String>();
4749                }
4750                pkgs.add(p.packageName);
4751            }
4752        }
4753        return pkgs;
4754    }
4755
4756    public void shutdown() {
4757        mPackageUsage.write(true);
4758    }
4759
4760    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4761             boolean forceDex, boolean defer, ArraySet<String> done) {
4762        for (int i=0; i<libs.size(); i++) {
4763            PackageParser.Package libPkg;
4764            String libName;
4765            synchronized (mPackages) {
4766                libName = libs.get(i);
4767                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4768                if (lib != null && lib.apk != null) {
4769                    libPkg = mPackages.get(lib.apk);
4770                } else {
4771                    libPkg = null;
4772                }
4773            }
4774            if (libPkg != null && !done.contains(libName)) {
4775                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4776            }
4777        }
4778    }
4779
4780    static final int DEX_OPT_SKIPPED = 0;
4781    static final int DEX_OPT_PERFORMED = 1;
4782    static final int DEX_OPT_DEFERRED = 2;
4783    static final int DEX_OPT_FAILED = -1;
4784
4785    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4786            boolean forceDex, boolean defer, ArraySet<String> done) {
4787        final String[] instructionSets = targetInstructionSets != null ?
4788                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4789
4790        if (done != null) {
4791            done.add(pkg.packageName);
4792            if (pkg.usesLibraries != null) {
4793                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4794            }
4795            if (pkg.usesOptionalLibraries != null) {
4796                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4797            }
4798        }
4799
4800        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4801            return DEX_OPT_SKIPPED;
4802        }
4803
4804        final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
4805
4806        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4807        boolean performedDexOpt = false;
4808        // There are three basic cases here:
4809        // 1.) we need to dexopt, either because we are forced or it is needed
4810        // 2.) we are defering a needed dexopt
4811        // 3.) we are skipping an unneeded dexopt
4812        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4813        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4814            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4815                continue;
4816            }
4817
4818            for (String path : paths) {
4819                try {
4820                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4821                    // patckage or the one we find does not match the image checksum (i.e. it was
4822                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4823                    // odex file and it matches the checksum of the image but not its base address,
4824                    // meaning we need to move it.
4825                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4826                            pkg.packageName, dexCodeInstructionSet, defer);
4827                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4828                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4829                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
4830                                + " vmSafeMode=" + vmSafeMode);
4831                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4832                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4833                                pkg.packageName, dexCodeInstructionSet, vmSafeMode);
4834
4835                        if (ret < 0) {
4836                            // Don't bother running dexopt again if we failed, it will probably
4837                            // just result in an error again. Also, don't bother dexopting for other
4838                            // paths & ISAs.
4839                            return DEX_OPT_FAILED;
4840                        }
4841
4842                        performedDexOpt = true;
4843                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4844                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4845                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4846                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4847                                pkg.packageName, dexCodeInstructionSet);
4848
4849                        if (ret < 0) {
4850                            // Don't bother running patchoat again if we failed, it will probably
4851                            // just result in an error again. Also, don't bother dexopting for other
4852                            // paths & ISAs.
4853                            return DEX_OPT_FAILED;
4854                        }
4855
4856                        performedDexOpt = true;
4857                    }
4858
4859                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4860                    // paths and instruction sets. We'll deal with them all together when we process
4861                    // our list of deferred dexopts.
4862                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4863                        if (mDeferredDexOpt == null) {
4864                            mDeferredDexOpt = new ArraySet<PackageParser.Package>();
4865                        }
4866                        mDeferredDexOpt.add(pkg);
4867                        return DEX_OPT_DEFERRED;
4868                    }
4869                } catch (FileNotFoundException e) {
4870                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4871                    return DEX_OPT_FAILED;
4872                } catch (IOException e) {
4873                    Slog.w(TAG, "IOException reading apk: " + path, e);
4874                    return DEX_OPT_FAILED;
4875                } catch (StaleDexCacheError e) {
4876                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4877                    return DEX_OPT_FAILED;
4878                } catch (Exception e) {
4879                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4880                    return DEX_OPT_FAILED;
4881                }
4882            }
4883
4884            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4885            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4886            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4887            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4888            // it.
4889            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4890        }
4891
4892        // If we've gotten here, we're sure that no error occurred and that we haven't
4893        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4894        // we've skipped all of them because they are up to date. In both cases this
4895        // package doesn't need dexopt any longer.
4896        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4897    }
4898
4899    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4900        if (info.primaryCpuAbi != null) {
4901            if (info.secondaryCpuAbi != null) {
4902                return new String[] {
4903                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4904                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4905            } else {
4906                return new String[] {
4907                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4908            }
4909        }
4910
4911        return new String[] { getPreferredInstructionSet() };
4912    }
4913
4914    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4915        if (ps.primaryCpuAbiString != null) {
4916            if (ps.secondaryCpuAbiString != null) {
4917                return new String[] {
4918                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4919                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4920            } else {
4921                return new String[] {
4922                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
4923            }
4924        }
4925
4926        return new String[] { getPreferredInstructionSet() };
4927    }
4928
4929    private static String getPreferredInstructionSet() {
4930        if (sPreferredInstructionSet == null) {
4931            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
4932        }
4933
4934        return sPreferredInstructionSet;
4935    }
4936
4937    private static List<String> getAllInstructionSets() {
4938        final String[] allAbis = Build.SUPPORTED_ABIS;
4939        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
4940
4941        for (String abi : allAbis) {
4942            final String instructionSet = VMRuntime.getInstructionSet(abi);
4943            if (!allInstructionSets.contains(instructionSet)) {
4944                allInstructionSets.add(instructionSet);
4945            }
4946        }
4947
4948        return allInstructionSets;
4949    }
4950
4951    /**
4952     * Returns the instruction set that should be used to compile dex code. In the presence of
4953     * a native bridge this might be different than the one shared libraries use.
4954     */
4955    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
4956        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
4957        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
4958    }
4959
4960    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
4961        ArraySet<String> dexCodeInstructionSets = new ArraySet<String>(instructionSets.length);
4962        for (String instructionSet : instructionSets) {
4963            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
4964        }
4965        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
4966    }
4967
4968    /**
4969     * Returns deduplicated list of supported instructions for dex code.
4970     */
4971    public static String[] getAllDexCodeInstructionSets() {
4972        String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length];
4973        for (int i = 0; i < supportedInstructionSets.length; i++) {
4974            String abi = Build.SUPPORTED_ABIS[i];
4975            supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi);
4976        }
4977        return getDexCodeInstructionSets(supportedInstructionSets);
4978    }
4979
4980    @Override
4981    public void forceDexOpt(String packageName) {
4982        enforceSystemOrRoot("forceDexOpt");
4983
4984        PackageParser.Package pkg;
4985        synchronized (mPackages) {
4986            pkg = mPackages.get(packageName);
4987            if (pkg == null) {
4988                throw new IllegalArgumentException("Missing package: " + packageName);
4989            }
4990        }
4991
4992        synchronized (mInstallLock) {
4993            final String[] instructionSets = new String[] {
4994                    getPrimaryInstructionSet(pkg.applicationInfo) };
4995            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
4996            if (res != DEX_OPT_PERFORMED) {
4997                throw new IllegalStateException("Failed to dexopt: " + res);
4998            }
4999        }
5000    }
5001
5002    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
5003                                boolean forceDex, boolean defer, boolean inclDependencies) {
5004        ArraySet<String> done;
5005        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
5006            done = new ArraySet<String>();
5007            done.add(pkg.packageName);
5008        } else {
5009            done = null;
5010        }
5011        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
5012    }
5013
5014    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
5015        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
5016            Slog.w(TAG, "Unable to update from " + oldPkg.name
5017                    + " to " + newPkg.packageName
5018                    + ": old package not in system partition");
5019            return false;
5020        } else if (mPackages.get(oldPkg.name) != null) {
5021            Slog.w(TAG, "Unable to update from " + oldPkg.name
5022                    + " to " + newPkg.packageName
5023                    + ": old package still exists");
5024            return false;
5025        }
5026        return true;
5027    }
5028
5029    File getDataPathForUser(int userId) {
5030        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
5031    }
5032
5033    private File getDataPathForPackage(String packageName, int userId) {
5034        /*
5035         * Until we fully support multiple users, return the directory we
5036         * previously would have. The PackageManagerTests will need to be
5037         * revised when this is changed back..
5038         */
5039        if (userId == 0) {
5040            return new File(mAppDataDir, packageName);
5041        } else {
5042            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
5043                + File.separator + packageName);
5044        }
5045    }
5046
5047    private int createDataDirsLI(String packageName, int uid, String seinfo) {
5048        int[] users = sUserManager.getUserIds();
5049        int res = mInstaller.install(packageName, uid, uid, seinfo);
5050        if (res < 0) {
5051            return res;
5052        }
5053        for (int user : users) {
5054            if (user != 0) {
5055                res = mInstaller.createUserData(packageName,
5056                        UserHandle.getUid(user, uid), user, seinfo);
5057                if (res < 0) {
5058                    return res;
5059                }
5060            }
5061        }
5062        return res;
5063    }
5064
5065    private int removeDataDirsLI(String packageName) {
5066        int[] users = sUserManager.getUserIds();
5067        int res = 0;
5068        for (int user : users) {
5069            int resInner = mInstaller.remove(packageName, user);
5070            if (resInner < 0) {
5071                res = resInner;
5072            }
5073        }
5074
5075        return res;
5076    }
5077
5078    private int deleteCodeCacheDirsLI(String packageName) {
5079        int[] users = sUserManager.getUserIds();
5080        int res = 0;
5081        for (int user : users) {
5082            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
5083            if (resInner < 0) {
5084                res = resInner;
5085            }
5086        }
5087        return res;
5088    }
5089
5090    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
5091            PackageParser.Package changingLib) {
5092        if (file.path != null) {
5093            usesLibraryFiles.add(file.path);
5094            return;
5095        }
5096        PackageParser.Package p = mPackages.get(file.apk);
5097        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
5098            // If we are doing this while in the middle of updating a library apk,
5099            // then we need to make sure to use that new apk for determining the
5100            // dependencies here.  (We haven't yet finished committing the new apk
5101            // to the package manager state.)
5102            if (p == null || p.packageName.equals(changingLib.packageName)) {
5103                p = changingLib;
5104            }
5105        }
5106        if (p != null) {
5107            usesLibraryFiles.addAll(p.getAllCodePaths());
5108        }
5109    }
5110
5111    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
5112            PackageParser.Package changingLib) throws PackageManagerException {
5113        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
5114            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
5115            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
5116            for (int i=0; i<N; i++) {
5117                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
5118                if (file == null) {
5119                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
5120                            "Package " + pkg.packageName + " requires unavailable shared library "
5121                            + pkg.usesLibraries.get(i) + "; failing!");
5122                }
5123                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5124            }
5125            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
5126            for (int i=0; i<N; i++) {
5127                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
5128                if (file == null) {
5129                    Slog.w(TAG, "Package " + pkg.packageName
5130                            + " desires unavailable shared library "
5131                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5132                } else {
5133                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5134                }
5135            }
5136            N = usesLibraryFiles.size();
5137            if (N > 0) {
5138                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5139            } else {
5140                pkg.usesLibraryFiles = null;
5141            }
5142        }
5143    }
5144
5145    private static boolean hasString(List<String> list, List<String> which) {
5146        if (list == null) {
5147            return false;
5148        }
5149        for (int i=list.size()-1; i>=0; i--) {
5150            for (int j=which.size()-1; j>=0; j--) {
5151                if (which.get(j).equals(list.get(i))) {
5152                    return true;
5153                }
5154            }
5155        }
5156        return false;
5157    }
5158
5159    private void updateAllSharedLibrariesLPw() {
5160        for (PackageParser.Package pkg : mPackages.values()) {
5161            try {
5162                updateSharedLibrariesLPw(pkg, null);
5163            } catch (PackageManagerException e) {
5164                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5165            }
5166        }
5167    }
5168
5169    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5170            PackageParser.Package changingPkg) {
5171        ArrayList<PackageParser.Package> res = null;
5172        for (PackageParser.Package pkg : mPackages.values()) {
5173            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5174                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5175                if (res == null) {
5176                    res = new ArrayList<PackageParser.Package>();
5177                }
5178                res.add(pkg);
5179                try {
5180                    updateSharedLibrariesLPw(pkg, changingPkg);
5181                } catch (PackageManagerException e) {
5182                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5183                }
5184            }
5185        }
5186        return res;
5187    }
5188
5189    /**
5190     * Derive the value of the {@code cpuAbiOverride} based on the provided
5191     * value and an optional stored value from the package settings.
5192     */
5193    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5194        String cpuAbiOverride = null;
5195
5196        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5197            cpuAbiOverride = null;
5198        } else if (abiOverride != null) {
5199            cpuAbiOverride = abiOverride;
5200        } else if (settings != null) {
5201            cpuAbiOverride = settings.cpuAbiOverrideString;
5202        }
5203
5204        return cpuAbiOverride;
5205    }
5206
5207    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5208            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5209        boolean success = false;
5210        try {
5211            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5212                    currentTime, user);
5213            success = true;
5214            return res;
5215        } finally {
5216            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5217                removeDataDirsLI(pkg.packageName);
5218            }
5219        }
5220    }
5221
5222    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5223            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5224        final File scanFile = new File(pkg.codePath);
5225        if (pkg.applicationInfo.getCodePath() == null ||
5226                pkg.applicationInfo.getResourcePath() == null) {
5227            // Bail out. The resource and code paths haven't been set.
5228            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5229                    "Code and resource paths haven't been set correctly");
5230        }
5231
5232        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5233            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5234        } else {
5235            // Only allow system apps to be flagged as core apps.
5236            pkg.coreApp = false;
5237        }
5238
5239        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5240            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_PRIVILEGED;
5241        }
5242
5243        if (mCustomResolverComponentName != null &&
5244                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5245            setUpCustomResolverActivity(pkg);
5246        }
5247
5248        if (pkg.packageName.equals("android")) {
5249            synchronized (mPackages) {
5250                if (mAndroidApplication != null) {
5251                    Slog.w(TAG, "*************************************************");
5252                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5253                    Slog.w(TAG, " file=" + scanFile);
5254                    Slog.w(TAG, "*************************************************");
5255                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5256                            "Core android package being redefined.  Skipping.");
5257                }
5258
5259                // Set up information for our fall-back user intent resolution activity.
5260                mPlatformPackage = pkg;
5261                pkg.mVersionCode = mSdkVersion;
5262                mAndroidApplication = pkg.applicationInfo;
5263
5264                if (!mResolverReplaced) {
5265                    mResolveActivity.applicationInfo = mAndroidApplication;
5266                    mResolveActivity.name = ResolverActivity.class.getName();
5267                    mResolveActivity.packageName = mAndroidApplication.packageName;
5268                    mResolveActivity.processName = "system:ui";
5269                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5270                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5271                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5272                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5273                    mResolveActivity.exported = true;
5274                    mResolveActivity.enabled = true;
5275                    mResolveInfo.activityInfo = mResolveActivity;
5276                    mResolveInfo.priority = 0;
5277                    mResolveInfo.preferredOrder = 0;
5278                    mResolveInfo.match = 0;
5279                    mResolveComponentName = new ComponentName(
5280                            mAndroidApplication.packageName, mResolveActivity.name);
5281                }
5282            }
5283        }
5284
5285        if (DEBUG_PACKAGE_SCANNING) {
5286            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5287                Log.d(TAG, "Scanning package " + pkg.packageName);
5288        }
5289
5290        if (mPackages.containsKey(pkg.packageName)
5291                || mSharedLibraries.containsKey(pkg.packageName)) {
5292            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5293                    "Application package " + pkg.packageName
5294                    + " already installed.  Skipping duplicate.");
5295        }
5296
5297        // Initialize package source and resource directories
5298        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5299        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5300
5301        SharedUserSetting suid = null;
5302        PackageSetting pkgSetting = null;
5303
5304        if (!isSystemApp(pkg)) {
5305            // Only system apps can use these features.
5306            pkg.mOriginalPackages = null;
5307            pkg.mRealPackage = null;
5308            pkg.mAdoptPermissions = null;
5309        }
5310
5311        // writer
5312        synchronized (mPackages) {
5313            if (pkg.mSharedUserId != null) {
5314                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, true);
5315                if (suid == null) {
5316                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5317                            "Creating application package " + pkg.packageName
5318                            + " for shared user failed");
5319                }
5320                if (DEBUG_PACKAGE_SCANNING) {
5321                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5322                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5323                                + "): packages=" + suid.packages);
5324                }
5325            }
5326
5327            // Check if we are renaming from an original package name.
5328            PackageSetting origPackage = null;
5329            String realName = null;
5330            if (pkg.mOriginalPackages != null) {
5331                // This package may need to be renamed to a previously
5332                // installed name.  Let's check on that...
5333                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5334                if (pkg.mOriginalPackages.contains(renamed)) {
5335                    // This package had originally been installed as the
5336                    // original name, and we have already taken care of
5337                    // transitioning to the new one.  Just update the new
5338                    // one to continue using the old name.
5339                    realName = pkg.mRealPackage;
5340                    if (!pkg.packageName.equals(renamed)) {
5341                        // Callers into this function may have already taken
5342                        // care of renaming the package; only do it here if
5343                        // it is not already done.
5344                        pkg.setPackageName(renamed);
5345                    }
5346
5347                } else {
5348                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5349                        if ((origPackage = mSettings.peekPackageLPr(
5350                                pkg.mOriginalPackages.get(i))) != null) {
5351                            // We do have the package already installed under its
5352                            // original name...  should we use it?
5353                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5354                                // New package is not compatible with original.
5355                                origPackage = null;
5356                                continue;
5357                            } else if (origPackage.sharedUser != null) {
5358                                // Make sure uid is compatible between packages.
5359                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5360                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5361                                            + " to " + pkg.packageName + ": old uid "
5362                                            + origPackage.sharedUser.name
5363                                            + " differs from " + pkg.mSharedUserId);
5364                                    origPackage = null;
5365                                    continue;
5366                                }
5367                            } else {
5368                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5369                                        + pkg.packageName + " to old name " + origPackage.name);
5370                            }
5371                            break;
5372                        }
5373                    }
5374                }
5375            }
5376
5377            if (mTransferedPackages.contains(pkg.packageName)) {
5378                Slog.w(TAG, "Package " + pkg.packageName
5379                        + " was transferred to another, but its .apk remains");
5380            }
5381
5382            // Just create the setting, don't add it yet. For already existing packages
5383            // the PkgSetting exists already and doesn't have to be created.
5384            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5385                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5386                    pkg.applicationInfo.primaryCpuAbi,
5387                    pkg.applicationInfo.secondaryCpuAbi,
5388                    pkg.applicationInfo.flags, user, false);
5389            if (pkgSetting == null) {
5390                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5391                        "Creating application package " + pkg.packageName + " failed");
5392            }
5393
5394            if (pkgSetting.origPackage != null) {
5395                // If we are first transitioning from an original package,
5396                // fix up the new package's name now.  We need to do this after
5397                // looking up the package under its new name, so getPackageLP
5398                // can take care of fiddling things correctly.
5399                pkg.setPackageName(origPackage.name);
5400
5401                // File a report about this.
5402                String msg = "New package " + pkgSetting.realName
5403                        + " renamed to replace old package " + pkgSetting.name;
5404                reportSettingsProblem(Log.WARN, msg);
5405
5406                // Make a note of it.
5407                mTransferedPackages.add(origPackage.name);
5408
5409                // No longer need to retain this.
5410                pkgSetting.origPackage = null;
5411            }
5412
5413            if (realName != null) {
5414                // Make a note of it.
5415                mTransferedPackages.add(pkg.packageName);
5416            }
5417
5418            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5419                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5420            }
5421
5422            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5423                // Check all shared libraries and map to their actual file path.
5424                // We only do this here for apps not on a system dir, because those
5425                // are the only ones that can fail an install due to this.  We
5426                // will take care of the system apps by updating all of their
5427                // library paths after the scan is done.
5428                updateSharedLibrariesLPw(pkg, null);
5429            }
5430
5431            if (mFoundPolicyFile) {
5432                SELinuxMMAC.assignSeinfoValue(pkg);
5433            }
5434
5435            pkg.applicationInfo.uid = pkgSetting.appId;
5436            pkg.mExtras = pkgSetting;
5437            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5438                try {
5439                    verifySignaturesLP(pkgSetting, pkg);
5440                    // We just determined the app is signed correctly, so bring
5441                    // over the latest parsed certs.
5442                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5443                } catch (PackageManagerException e) {
5444                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5445                        throw e;
5446                    }
5447                    // The signature has changed, but this package is in the system
5448                    // image...  let's recover!
5449                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5450                    // However...  if this package is part of a shared user, but it
5451                    // doesn't match the signature of the shared user, let's fail.
5452                    // What this means is that you can't change the signatures
5453                    // associated with an overall shared user, which doesn't seem all
5454                    // that unreasonable.
5455                    if (pkgSetting.sharedUser != null) {
5456                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5457                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5458                            throw new PackageManagerException(
5459                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5460                                            "Signature mismatch for shared user : "
5461                                            + pkgSetting.sharedUser);
5462                        }
5463                    }
5464                    // File a report about this.
5465                    String msg = "System package " + pkg.packageName
5466                        + " signature changed; retaining data.";
5467                    reportSettingsProblem(Log.WARN, msg);
5468                }
5469            } else {
5470                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5471                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5472                            + pkg.packageName + " upgrade keys do not match the "
5473                            + "previously installed version");
5474                } else {
5475                    // We just determined the app is signed correctly, so bring
5476                    // over the latest parsed certs.
5477                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5478                }
5479            }
5480            // Verify that this new package doesn't have any content providers
5481            // that conflict with existing packages.  Only do this if the
5482            // package isn't already installed, since we don't want to break
5483            // things that are installed.
5484            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5485                final int N = pkg.providers.size();
5486                int i;
5487                for (i=0; i<N; i++) {
5488                    PackageParser.Provider p = pkg.providers.get(i);
5489                    if (p.info.authority != null) {
5490                        String names[] = p.info.authority.split(";");
5491                        for (int j = 0; j < names.length; j++) {
5492                            if (mProvidersByAuthority.containsKey(names[j])) {
5493                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5494                                final String otherPackageName =
5495                                        ((other != null && other.getComponentName() != null) ?
5496                                                other.getComponentName().getPackageName() : "?");
5497                                throw new PackageManagerException(
5498                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5499                                                "Can't install because provider name " + names[j]
5500                                                + " (in package " + pkg.applicationInfo.packageName
5501                                                + ") is already used by " + otherPackageName);
5502                            }
5503                        }
5504                    }
5505                }
5506            }
5507
5508            if (pkg.mAdoptPermissions != null) {
5509                // This package wants to adopt ownership of permissions from
5510                // another package.
5511                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5512                    final String origName = pkg.mAdoptPermissions.get(i);
5513                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5514                    if (orig != null) {
5515                        if (verifyPackageUpdateLPr(orig, pkg)) {
5516                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5517                                    + pkg.packageName);
5518                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5519                        }
5520                    }
5521                }
5522            }
5523        }
5524
5525        final String pkgName = pkg.packageName;
5526
5527        final long scanFileTime = scanFile.lastModified();
5528        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5529        pkg.applicationInfo.processName = fixProcessName(
5530                pkg.applicationInfo.packageName,
5531                pkg.applicationInfo.processName,
5532                pkg.applicationInfo.uid);
5533
5534        File dataPath;
5535        if (mPlatformPackage == pkg) {
5536            // The system package is special.
5537            dataPath = new File(Environment.getDataDirectory(), "system");
5538
5539            pkg.applicationInfo.dataDir = dataPath.getPath();
5540
5541        } else {
5542            // This is a normal package, need to make its data directory.
5543            dataPath = getDataPathForPackage(pkg.packageName, 0);
5544
5545            boolean uidError = false;
5546            if (dataPath.exists()) {
5547                int currentUid = 0;
5548                try {
5549                    StructStat stat = Os.stat(dataPath.getPath());
5550                    currentUid = stat.st_uid;
5551                } catch (ErrnoException e) {
5552                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5553                }
5554
5555                // If we have mismatched owners for the data path, we have a problem.
5556                if (currentUid != pkg.applicationInfo.uid) {
5557                    boolean recovered = false;
5558                    if (currentUid == 0) {
5559                        // The directory somehow became owned by root.  Wow.
5560                        // This is probably because the system was stopped while
5561                        // installd was in the middle of messing with its libs
5562                        // directory.  Ask installd to fix that.
5563                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5564                                pkg.applicationInfo.uid);
5565                        if (ret >= 0) {
5566                            recovered = true;
5567                            String msg = "Package " + pkg.packageName
5568                                    + " unexpectedly changed to uid 0; recovered to " +
5569                                    + pkg.applicationInfo.uid;
5570                            reportSettingsProblem(Log.WARN, msg);
5571                        }
5572                    }
5573                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5574                            || (scanFlags&SCAN_BOOTING) != 0)) {
5575                        // If this is a system app, we can at least delete its
5576                        // current data so the application will still work.
5577                        int ret = removeDataDirsLI(pkgName);
5578                        if (ret >= 0) {
5579                            // TODO: Kill the processes first
5580                            // Old data gone!
5581                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5582                                    ? "System package " : "Third party package ";
5583                            String msg = prefix + pkg.packageName
5584                                    + " has changed from uid: "
5585                                    + currentUid + " to "
5586                                    + pkg.applicationInfo.uid + "; old data erased";
5587                            reportSettingsProblem(Log.WARN, msg);
5588                            recovered = true;
5589
5590                            // And now re-install the app.
5591                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5592                                                   pkg.applicationInfo.seinfo);
5593                            if (ret == -1) {
5594                                // Ack should not happen!
5595                                msg = prefix + pkg.packageName
5596                                        + " could not have data directory re-created after delete.";
5597                                reportSettingsProblem(Log.WARN, msg);
5598                                throw new PackageManagerException(
5599                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5600                            }
5601                        }
5602                        if (!recovered) {
5603                            mHasSystemUidErrors = true;
5604                        }
5605                    } else if (!recovered) {
5606                        // If we allow this install to proceed, we will be broken.
5607                        // Abort, abort!
5608                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5609                                "scanPackageLI");
5610                    }
5611                    if (!recovered) {
5612                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5613                            + pkg.applicationInfo.uid + "/fs_"
5614                            + currentUid;
5615                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5616                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5617                        String msg = "Package " + pkg.packageName
5618                                + " has mismatched uid: "
5619                                + currentUid + " on disk, "
5620                                + pkg.applicationInfo.uid + " in settings";
5621                        // writer
5622                        synchronized (mPackages) {
5623                            mSettings.mReadMessages.append(msg);
5624                            mSettings.mReadMessages.append('\n');
5625                            uidError = true;
5626                            if (!pkgSetting.uidError) {
5627                                reportSettingsProblem(Log.ERROR, msg);
5628                            }
5629                        }
5630                    }
5631                }
5632                pkg.applicationInfo.dataDir = dataPath.getPath();
5633                if (mShouldRestoreconData) {
5634                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5635                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5636                                pkg.applicationInfo.uid);
5637                }
5638            } else {
5639                if (DEBUG_PACKAGE_SCANNING) {
5640                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5641                        Log.v(TAG, "Want this data dir: " + dataPath);
5642                }
5643                //invoke installer to do the actual installation
5644                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5645                                           pkg.applicationInfo.seinfo);
5646                if (ret < 0) {
5647                    // Error from installer
5648                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5649                            "Unable to create data dirs [errorCode=" + ret + "]");
5650                }
5651
5652                if (dataPath.exists()) {
5653                    pkg.applicationInfo.dataDir = dataPath.getPath();
5654                } else {
5655                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5656                    pkg.applicationInfo.dataDir = null;
5657                }
5658            }
5659
5660            pkgSetting.uidError = uidError;
5661        }
5662
5663        final String path = scanFile.getPath();
5664        final String codePath = pkg.applicationInfo.getCodePath();
5665        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5666        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5667            setBundledAppAbisAndRoots(pkg, pkgSetting);
5668
5669            // If we haven't found any native libraries for the app, check if it has
5670            // renderscript code. We'll need to force the app to 32 bit if it has
5671            // renderscript bitcode.
5672            if (pkg.applicationInfo.primaryCpuAbi == null
5673                    && pkg.applicationInfo.secondaryCpuAbi == null
5674                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5675                NativeLibraryHelper.Handle handle = null;
5676                try {
5677                    handle = NativeLibraryHelper.Handle.create(scanFile);
5678                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5679                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5680                    }
5681                } catch (IOException ioe) {
5682                    Slog.w(TAG, "Error scanning system app : " + ioe);
5683                } finally {
5684                    IoUtils.closeQuietly(handle);
5685                }
5686            }
5687
5688            setNativeLibraryPaths(pkg);
5689        } else {
5690            // TODO: We can probably be smarter about this stuff. For installed apps,
5691            // we can calculate this information at install time once and for all. For
5692            // system apps, we can probably assume that this information doesn't change
5693            // after the first boot scan. As things stand, we do lots of unnecessary work.
5694
5695            // Give ourselves some initial paths; we'll come back for another
5696            // pass once we've determined ABI below.
5697            setNativeLibraryPaths(pkg);
5698
5699            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5700            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5701            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5702
5703            NativeLibraryHelper.Handle handle = null;
5704            try {
5705                handle = NativeLibraryHelper.Handle.create(scanFile);
5706                // TODO(multiArch): This can be null for apps that didn't go through the
5707                // usual installation process. We can calculate it again, like we
5708                // do during install time.
5709                //
5710                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5711                // unnecessary.
5712                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5713
5714                // Null out the abis so that they can be recalculated.
5715                pkg.applicationInfo.primaryCpuAbi = null;
5716                pkg.applicationInfo.secondaryCpuAbi = null;
5717                if (isMultiArch(pkg.applicationInfo)) {
5718                    // Warn if we've set an abiOverride for multi-lib packages..
5719                    // By definition, we need to copy both 32 and 64 bit libraries for
5720                    // such packages.
5721                    if (pkg.cpuAbiOverride != null
5722                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5723                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5724                    }
5725
5726                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5727                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5728                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5729                        if (isAsec) {
5730                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5731                        } else {
5732                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5733                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5734                                    useIsaSpecificSubdirs);
5735                        }
5736                    }
5737
5738                    maybeThrowExceptionForMultiArchCopy(
5739                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5740
5741                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5742                        if (isAsec) {
5743                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5744                        } else {
5745                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5746                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5747                                    useIsaSpecificSubdirs);
5748                        }
5749                    }
5750
5751                    maybeThrowExceptionForMultiArchCopy(
5752                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5753
5754                    if (abi64 >= 0) {
5755                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5756                    }
5757
5758                    if (abi32 >= 0) {
5759                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5760                        if (abi64 >= 0) {
5761                            pkg.applicationInfo.secondaryCpuAbi = abi;
5762                        } else {
5763                            pkg.applicationInfo.primaryCpuAbi = abi;
5764                        }
5765                    }
5766                } else {
5767                    String[] abiList = (cpuAbiOverride != null) ?
5768                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5769
5770                    // Enable gross and lame hacks for apps that are built with old
5771                    // SDK tools. We must scan their APKs for renderscript bitcode and
5772                    // not launch them if it's present. Don't bother checking on devices
5773                    // that don't have 64 bit support.
5774                    boolean needsRenderScriptOverride = false;
5775                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5776                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5777                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5778                        needsRenderScriptOverride = true;
5779                    }
5780
5781                    final int copyRet;
5782                    if (isAsec) {
5783                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5784                    } else {
5785                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5786                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5787                    }
5788
5789                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5790                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5791                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5792                    }
5793
5794                    if (copyRet >= 0) {
5795                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5796                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5797                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5798                    } else if (needsRenderScriptOverride) {
5799                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5800                    }
5801                }
5802            } catch (IOException ioe) {
5803                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5804            } finally {
5805                IoUtils.closeQuietly(handle);
5806            }
5807
5808            // Now that we've calculated the ABIs and determined if it's an internal app,
5809            // we will go ahead and populate the nativeLibraryPath.
5810            setNativeLibraryPaths(pkg);
5811
5812            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5813            final int[] userIds = sUserManager.getUserIds();
5814            synchronized (mInstallLock) {
5815                // Create a native library symlink only if we have native libraries
5816                // and if the native libraries are 32 bit libraries. We do not provide
5817                // this symlink for 64 bit libraries.
5818                if (pkg.applicationInfo.primaryCpuAbi != null &&
5819                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5820                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5821                    for (int userId : userIds) {
5822                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5823                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5824                                    "Failed linking native library dir (user=" + userId + ")");
5825                        }
5826                    }
5827                }
5828            }
5829        }
5830
5831        // This is a special case for the "system" package, where the ABI is
5832        // dictated by the zygote configuration (and init.rc). We should keep track
5833        // of this ABI so that we can deal with "normal" applications that run under
5834        // the same UID correctly.
5835        if (mPlatformPackage == pkg) {
5836            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5837                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5838        }
5839
5840        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5841        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5842        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5843        // Copy the derived override back to the parsed package, so that we can
5844        // update the package settings accordingly.
5845        pkg.cpuAbiOverride = cpuAbiOverride;
5846
5847        if (DEBUG_ABI_SELECTION) {
5848            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5849                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5850                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5851        }
5852
5853        // Push the derived path down into PackageSettings so we know what to
5854        // clean up at uninstall time.
5855        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5856
5857        if (DEBUG_ABI_SELECTION) {
5858            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5859                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5860                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5861        }
5862
5863        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5864            // We don't do this here during boot because we can do it all
5865            // at once after scanning all existing packages.
5866            //
5867            // We also do this *before* we perform dexopt on this package, so that
5868            // we can avoid redundant dexopts, and also to make sure we've got the
5869            // code and package path correct.
5870            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5871                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5872        }
5873
5874        if ((scanFlags & SCAN_NO_DEX) == 0) {
5875            if (performDexOptLI(pkg, null /* instruction sets */, forceDex,
5876                    (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5877                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5878            }
5879        }
5880
5881        if (mFactoryTest && pkg.requestedPermissions.contains(
5882                android.Manifest.permission.FACTORY_TEST)) {
5883            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5884        }
5885
5886        ArrayList<PackageParser.Package> clientLibPkgs = null;
5887
5888        // writer
5889        synchronized (mPackages) {
5890            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5891                // Only system apps can add new shared libraries.
5892                if (pkg.libraryNames != null) {
5893                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5894                        String name = pkg.libraryNames.get(i);
5895                        boolean allowed = false;
5896                        if (isUpdatedSystemApp(pkg)) {
5897                            // New library entries can only be added through the
5898                            // system image.  This is important to get rid of a lot
5899                            // of nasty edge cases: for example if we allowed a non-
5900                            // system update of the app to add a library, then uninstalling
5901                            // the update would make the library go away, and assumptions
5902                            // we made such as through app install filtering would now
5903                            // have allowed apps on the device which aren't compatible
5904                            // with it.  Better to just have the restriction here, be
5905                            // conservative, and create many fewer cases that can negatively
5906                            // impact the user experience.
5907                            final PackageSetting sysPs = mSettings
5908                                    .getDisabledSystemPkgLPr(pkg.packageName);
5909                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5910                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5911                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5912                                        allowed = true;
5913                                        allowed = true;
5914                                        break;
5915                                    }
5916                                }
5917                            }
5918                        } else {
5919                            allowed = true;
5920                        }
5921                        if (allowed) {
5922                            if (!mSharedLibraries.containsKey(name)) {
5923                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5924                            } else if (!name.equals(pkg.packageName)) {
5925                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5926                                        + name + " already exists; skipping");
5927                            }
5928                        } else {
5929                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5930                                    + name + " that is not declared on system image; skipping");
5931                        }
5932                    }
5933                    if ((scanFlags&SCAN_BOOTING) == 0) {
5934                        // If we are not booting, we need to update any applications
5935                        // that are clients of our shared library.  If we are booting,
5936                        // this will all be done once the scan is complete.
5937                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5938                    }
5939                }
5940            }
5941        }
5942
5943        // We also need to dexopt any apps that are dependent on this library.  Note that
5944        // if these fail, we should abort the install since installing the library will
5945        // result in some apps being broken.
5946        if (clientLibPkgs != null) {
5947            if ((scanFlags & SCAN_NO_DEX) == 0) {
5948                for (int i = 0; i < clientLibPkgs.size(); i++) {
5949                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5950                    if (performDexOptLI(clientPkg, null /* instruction sets */, forceDex,
5951                            (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5952                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5953                                "scanPackageLI failed to dexopt clientLibPkgs");
5954                    }
5955                }
5956            }
5957        }
5958
5959        // Request the ActivityManager to kill the process(only for existing packages)
5960        // so that we do not end up in a confused state while the user is still using the older
5961        // version of the application while the new one gets installed.
5962        if ((scanFlags & SCAN_REPLACING) != 0) {
5963            killApplication(pkg.applicationInfo.packageName,
5964                        pkg.applicationInfo.uid, "update pkg");
5965        }
5966
5967        // Also need to kill any apps that are dependent on the library.
5968        if (clientLibPkgs != null) {
5969            for (int i=0; i<clientLibPkgs.size(); i++) {
5970                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5971                killApplication(clientPkg.applicationInfo.packageName,
5972                        clientPkg.applicationInfo.uid, "update lib");
5973            }
5974        }
5975
5976        // writer
5977        synchronized (mPackages) {
5978            // We don't expect installation to fail beyond this point
5979
5980            // Add the new setting to mSettings
5981            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5982            // Add the new setting to mPackages
5983            mPackages.put(pkg.applicationInfo.packageName, pkg);
5984            // Make sure we don't accidentally delete its data.
5985            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5986            while (iter.hasNext()) {
5987                PackageCleanItem item = iter.next();
5988                if (pkgName.equals(item.packageName)) {
5989                    iter.remove();
5990                }
5991            }
5992
5993            // Take care of first install / last update times.
5994            if (currentTime != 0) {
5995                if (pkgSetting.firstInstallTime == 0) {
5996                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5997                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5998                    pkgSetting.lastUpdateTime = currentTime;
5999                }
6000            } else if (pkgSetting.firstInstallTime == 0) {
6001                // We need *something*.  Take time time stamp of the file.
6002                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
6003            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
6004                if (scanFileTime != pkgSetting.timeStamp) {
6005                    // A package on the system image has changed; consider this
6006                    // to be an update.
6007                    pkgSetting.lastUpdateTime = scanFileTime;
6008                }
6009            }
6010
6011            // Add the package's KeySets to the global KeySetManagerService
6012            KeySetManagerService ksms = mSettings.mKeySetManagerService;
6013            try {
6014                // Old KeySetData no longer valid.
6015                ksms.removeAppKeySetDataLPw(pkg.packageName);
6016                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
6017                if (pkg.mKeySetMapping != null) {
6018                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
6019                            pkg.mKeySetMapping.entrySet()) {
6020                        if (entry.getValue() != null) {
6021                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
6022                                                          entry.getValue(), entry.getKey());
6023                        }
6024                    }
6025                    if (pkg.mUpgradeKeySets != null) {
6026                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
6027                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
6028                        }
6029                    }
6030                }
6031            } catch (NullPointerException e) {
6032                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
6033            } catch (IllegalArgumentException e) {
6034                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
6035            }
6036
6037            int N = pkg.providers.size();
6038            StringBuilder r = null;
6039            int i;
6040            for (i=0; i<N; i++) {
6041                PackageParser.Provider p = pkg.providers.get(i);
6042                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
6043                        p.info.processName, pkg.applicationInfo.uid);
6044                mProviders.addProvider(p);
6045                p.syncable = p.info.isSyncable;
6046                if (p.info.authority != null) {
6047                    String names[] = p.info.authority.split(";");
6048                    p.info.authority = null;
6049                    for (int j = 0; j < names.length; j++) {
6050                        if (j == 1 && p.syncable) {
6051                            // We only want the first authority for a provider to possibly be
6052                            // syncable, so if we already added this provider using a different
6053                            // authority clear the syncable flag. We copy the provider before
6054                            // changing it because the mProviders object contains a reference
6055                            // to a provider that we don't want to change.
6056                            // Only do this for the second authority since the resulting provider
6057                            // object can be the same for all future authorities for this provider.
6058                            p = new PackageParser.Provider(p);
6059                            p.syncable = false;
6060                        }
6061                        if (!mProvidersByAuthority.containsKey(names[j])) {
6062                            mProvidersByAuthority.put(names[j], p);
6063                            if (p.info.authority == null) {
6064                                p.info.authority = names[j];
6065                            } else {
6066                                p.info.authority = p.info.authority + ";" + names[j];
6067                            }
6068                            if (DEBUG_PACKAGE_SCANNING) {
6069                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
6070                                    Log.d(TAG, "Registered content provider: " + names[j]
6071                                            + ", className = " + p.info.name + ", isSyncable = "
6072                                            + p.info.isSyncable);
6073                            }
6074                        } else {
6075                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
6076                            Slog.w(TAG, "Skipping provider name " + names[j] +
6077                                    " (in package " + pkg.applicationInfo.packageName +
6078                                    "): name already used by "
6079                                    + ((other != null && other.getComponentName() != null)
6080                                            ? other.getComponentName().getPackageName() : "?"));
6081                        }
6082                    }
6083                }
6084                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6085                    if (r == null) {
6086                        r = new StringBuilder(256);
6087                    } else {
6088                        r.append(' ');
6089                    }
6090                    r.append(p.info.name);
6091                }
6092            }
6093            if (r != null) {
6094                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
6095            }
6096
6097            N = pkg.services.size();
6098            r = null;
6099            for (i=0; i<N; i++) {
6100                PackageParser.Service s = pkg.services.get(i);
6101                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
6102                        s.info.processName, pkg.applicationInfo.uid);
6103                mServices.addService(s);
6104                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6105                    if (r == null) {
6106                        r = new StringBuilder(256);
6107                    } else {
6108                        r.append(' ');
6109                    }
6110                    r.append(s.info.name);
6111                }
6112            }
6113            if (r != null) {
6114                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
6115            }
6116
6117            N = pkg.receivers.size();
6118            r = null;
6119            for (i=0; i<N; i++) {
6120                PackageParser.Activity a = pkg.receivers.get(i);
6121                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6122                        a.info.processName, pkg.applicationInfo.uid);
6123                mReceivers.addActivity(a, "receiver");
6124                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6125                    if (r == null) {
6126                        r = new StringBuilder(256);
6127                    } else {
6128                        r.append(' ');
6129                    }
6130                    r.append(a.info.name);
6131                }
6132            }
6133            if (r != null) {
6134                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6135            }
6136
6137            N = pkg.activities.size();
6138            r = null;
6139            for (i=0; i<N; i++) {
6140                PackageParser.Activity a = pkg.activities.get(i);
6141                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6142                        a.info.processName, pkg.applicationInfo.uid);
6143                mActivities.addActivity(a, "activity");
6144                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6145                    if (r == null) {
6146                        r = new StringBuilder(256);
6147                    } else {
6148                        r.append(' ');
6149                    }
6150                    r.append(a.info.name);
6151                }
6152            }
6153            if (r != null) {
6154                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6155            }
6156
6157            N = pkg.permissionGroups.size();
6158            r = null;
6159            for (i=0; i<N; i++) {
6160                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6161                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6162                if (cur == null) {
6163                    mPermissionGroups.put(pg.info.name, pg);
6164                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6165                        if (r == null) {
6166                            r = new StringBuilder(256);
6167                        } else {
6168                            r.append(' ');
6169                        }
6170                        r.append(pg.info.name);
6171                    }
6172                } else {
6173                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6174                            + pg.info.packageName + " ignored: original from "
6175                            + cur.info.packageName);
6176                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6177                        if (r == null) {
6178                            r = new StringBuilder(256);
6179                        } else {
6180                            r.append(' ');
6181                        }
6182                        r.append("DUP:");
6183                        r.append(pg.info.name);
6184                    }
6185                }
6186            }
6187            if (r != null) {
6188                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6189            }
6190
6191            N = pkg.permissions.size();
6192            r = null;
6193            for (i=0; i<N; i++) {
6194                PackageParser.Permission p = pkg.permissions.get(i);
6195                ArrayMap<String, BasePermission> permissionMap =
6196                        p.tree ? mSettings.mPermissionTrees
6197                        : mSettings.mPermissions;
6198                p.group = mPermissionGroups.get(p.info.group);
6199                if (p.info.group == null || p.group != null) {
6200                    BasePermission bp = permissionMap.get(p.info.name);
6201
6202                    // Allow system apps to redefine non-system permissions
6203                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6204                        final boolean currentOwnerIsSystem = (bp.perm != null
6205                                && isSystemApp(bp.perm.owner));
6206                        if (isSystemApp(p.owner)) {
6207                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6208                                // It's a built-in permission and no owner, take ownership now
6209                                bp.packageSetting = pkgSetting;
6210                                bp.perm = p;
6211                                bp.uid = pkg.applicationInfo.uid;
6212                                bp.sourcePackage = p.info.packageName;
6213                            } else if (!currentOwnerIsSystem) {
6214                                String msg = "New decl " + p.owner + " of permission  "
6215                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6216                                reportSettingsProblem(Log.WARN, msg);
6217                                bp = null;
6218                            }
6219                        }
6220                    }
6221
6222                    if (bp == null) {
6223                        bp = new BasePermission(p.info.name, p.info.packageName,
6224                                BasePermission.TYPE_NORMAL);
6225                        permissionMap.put(p.info.name, bp);
6226                    }
6227
6228                    if (bp.perm == null) {
6229                        if (bp.sourcePackage == null
6230                                || bp.sourcePackage.equals(p.info.packageName)) {
6231                            BasePermission tree = findPermissionTreeLP(p.info.name);
6232                            if (tree == null
6233                                    || tree.sourcePackage.equals(p.info.packageName)) {
6234                                bp.packageSetting = pkgSetting;
6235                                bp.perm = p;
6236                                bp.uid = pkg.applicationInfo.uid;
6237                                bp.sourcePackage = p.info.packageName;
6238                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6239                                    if (r == null) {
6240                                        r = new StringBuilder(256);
6241                                    } else {
6242                                        r.append(' ');
6243                                    }
6244                                    r.append(p.info.name);
6245                                }
6246                            } else {
6247                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6248                                        + p.info.packageName + " ignored: base tree "
6249                                        + tree.name + " is from package "
6250                                        + tree.sourcePackage);
6251                            }
6252                        } else {
6253                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6254                                    + p.info.packageName + " ignored: original from "
6255                                    + bp.sourcePackage);
6256                        }
6257                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6258                        if (r == null) {
6259                            r = new StringBuilder(256);
6260                        } else {
6261                            r.append(' ');
6262                        }
6263                        r.append("DUP:");
6264                        r.append(p.info.name);
6265                    }
6266                    if (bp.perm == p) {
6267                        bp.protectionLevel = p.info.protectionLevel;
6268                    }
6269                } else {
6270                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6271                            + p.info.packageName + " ignored: no group "
6272                            + p.group);
6273                }
6274            }
6275            if (r != null) {
6276                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6277            }
6278
6279            N = pkg.instrumentation.size();
6280            r = null;
6281            for (i=0; i<N; i++) {
6282                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6283                a.info.packageName = pkg.applicationInfo.packageName;
6284                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6285                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6286                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6287                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6288                a.info.dataDir = pkg.applicationInfo.dataDir;
6289
6290                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6291                // need other information about the application, like the ABI and what not ?
6292                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6293                mInstrumentation.put(a.getComponentName(), a);
6294                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6295                    if (r == null) {
6296                        r = new StringBuilder(256);
6297                    } else {
6298                        r.append(' ');
6299                    }
6300                    r.append(a.info.name);
6301                }
6302            }
6303            if (r != null) {
6304                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6305            }
6306
6307            if (pkg.protectedBroadcasts != null) {
6308                N = pkg.protectedBroadcasts.size();
6309                for (i=0; i<N; i++) {
6310                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6311                }
6312            }
6313
6314            pkgSetting.setTimeStamp(scanFileTime);
6315
6316            // Create idmap files for pairs of (packages, overlay packages).
6317            // Note: "android", ie framework-res.apk, is handled by native layers.
6318            if (pkg.mOverlayTarget != null) {
6319                // This is an overlay package.
6320                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6321                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6322                        mOverlays.put(pkg.mOverlayTarget,
6323                                new ArrayMap<String, PackageParser.Package>());
6324                    }
6325                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6326                    map.put(pkg.packageName, pkg);
6327                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6328                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6329                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6330                                "scanPackageLI failed to createIdmap");
6331                    }
6332                }
6333            } else if (mOverlays.containsKey(pkg.packageName) &&
6334                    !pkg.packageName.equals("android")) {
6335                // This is a regular package, with one or more known overlay packages.
6336                createIdmapsForPackageLI(pkg);
6337            }
6338        }
6339
6340        return pkg;
6341    }
6342
6343    /**
6344     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6345     * i.e, so that all packages can be run inside a single process if required.
6346     *
6347     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6348     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6349     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6350     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6351     * updating a package that belongs to a shared user.
6352     *
6353     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6354     * adds unnecessary complexity.
6355     */
6356    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6357            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6358        String requiredInstructionSet = null;
6359        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6360            requiredInstructionSet = VMRuntime.getInstructionSet(
6361                     scannedPackage.applicationInfo.primaryCpuAbi);
6362        }
6363
6364        PackageSetting requirer = null;
6365        for (PackageSetting ps : packagesForUser) {
6366            // If packagesForUser contains scannedPackage, we skip it. This will happen
6367            // when scannedPackage is an update of an existing package. Without this check,
6368            // we will never be able to change the ABI of any package belonging to a shared
6369            // user, even if it's compatible with other packages.
6370            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6371                if (ps.primaryCpuAbiString == null) {
6372                    continue;
6373                }
6374
6375                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6376                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6377                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6378                    // this but there's not much we can do.
6379                    String errorMessage = "Instruction set mismatch, "
6380                            + ((requirer == null) ? "[caller]" : requirer)
6381                            + " requires " + requiredInstructionSet + " whereas " + ps
6382                            + " requires " + instructionSet;
6383                    Slog.w(TAG, errorMessage);
6384                }
6385
6386                if (requiredInstructionSet == null) {
6387                    requiredInstructionSet = instructionSet;
6388                    requirer = ps;
6389                }
6390            }
6391        }
6392
6393        if (requiredInstructionSet != null) {
6394            String adjustedAbi;
6395            if (requirer != null) {
6396                // requirer != null implies that either scannedPackage was null or that scannedPackage
6397                // did not require an ABI, in which case we have to adjust scannedPackage to match
6398                // the ABI of the set (which is the same as requirer's ABI)
6399                adjustedAbi = requirer.primaryCpuAbiString;
6400                if (scannedPackage != null) {
6401                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6402                }
6403            } else {
6404                // requirer == null implies that we're updating all ABIs in the set to
6405                // match scannedPackage.
6406                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6407            }
6408
6409            for (PackageSetting ps : packagesForUser) {
6410                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6411                    if (ps.primaryCpuAbiString != null) {
6412                        continue;
6413                    }
6414
6415                    ps.primaryCpuAbiString = adjustedAbi;
6416                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6417                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6418                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6419
6420                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6421                                deferDexOpt, true) == DEX_OPT_FAILED) {
6422                            ps.primaryCpuAbiString = null;
6423                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6424                            return;
6425                        } else {
6426                            mInstaller.rmdex(ps.codePathString,
6427                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6428                        }
6429                    }
6430                }
6431            }
6432        }
6433    }
6434
6435    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6436        synchronized (mPackages) {
6437            mResolverReplaced = true;
6438            // Set up information for custom user intent resolution activity.
6439            mResolveActivity.applicationInfo = pkg.applicationInfo;
6440            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6441            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6442            mResolveActivity.processName = pkg.applicationInfo.packageName;
6443            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6444            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6445                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6446            mResolveActivity.theme = 0;
6447            mResolveActivity.exported = true;
6448            mResolveActivity.enabled = true;
6449            mResolveInfo.activityInfo = mResolveActivity;
6450            mResolveInfo.priority = 0;
6451            mResolveInfo.preferredOrder = 0;
6452            mResolveInfo.match = 0;
6453            mResolveComponentName = mCustomResolverComponentName;
6454            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6455                    mResolveComponentName);
6456        }
6457    }
6458
6459    private static String calculateBundledApkRoot(final String codePathString) {
6460        final File codePath = new File(codePathString);
6461        final File codeRoot;
6462        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6463            codeRoot = Environment.getRootDirectory();
6464        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6465            codeRoot = Environment.getOemDirectory();
6466        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6467            codeRoot = Environment.getVendorDirectory();
6468        } else {
6469            // Unrecognized code path; take its top real segment as the apk root:
6470            // e.g. /something/app/blah.apk => /something
6471            try {
6472                File f = codePath.getCanonicalFile();
6473                File parent = f.getParentFile();    // non-null because codePath is a file
6474                File tmp;
6475                while ((tmp = parent.getParentFile()) != null) {
6476                    f = parent;
6477                    parent = tmp;
6478                }
6479                codeRoot = f;
6480                Slog.w(TAG, "Unrecognized code path "
6481                        + codePath + " - using " + codeRoot);
6482            } catch (IOException e) {
6483                // Can't canonicalize the code path -- shenanigans?
6484                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6485                return Environment.getRootDirectory().getPath();
6486            }
6487        }
6488        return codeRoot.getPath();
6489    }
6490
6491    /**
6492     * Derive and set the location of native libraries for the given package,
6493     * which varies depending on where and how the package was installed.
6494     */
6495    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6496        final ApplicationInfo info = pkg.applicationInfo;
6497        final String codePath = pkg.codePath;
6498        final File codeFile = new File(codePath);
6499        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6500        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6501
6502        info.nativeLibraryRootDir = null;
6503        info.nativeLibraryRootRequiresIsa = false;
6504        info.nativeLibraryDir = null;
6505        info.secondaryNativeLibraryDir = null;
6506
6507        if (isApkFile(codeFile)) {
6508            // Monolithic install
6509            if (bundledApp) {
6510                // If "/system/lib64/apkname" exists, assume that is the per-package
6511                // native library directory to use; otherwise use "/system/lib/apkname".
6512                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6513                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6514                        getPrimaryInstructionSet(info));
6515
6516                // This is a bundled system app so choose the path based on the ABI.
6517                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6518                // is just the default path.
6519                final String apkName = deriveCodePathName(codePath);
6520                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6521                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6522                        apkName).getAbsolutePath();
6523
6524                if (info.secondaryCpuAbi != null) {
6525                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6526                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6527                            secondaryLibDir, apkName).getAbsolutePath();
6528                }
6529            } else if (asecApp) {
6530                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6531                        .getAbsolutePath();
6532            } else {
6533                final String apkName = deriveCodePathName(codePath);
6534                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6535                        .getAbsolutePath();
6536            }
6537
6538            info.nativeLibraryRootRequiresIsa = false;
6539            info.nativeLibraryDir = info.nativeLibraryRootDir;
6540        } else {
6541            // Cluster install
6542            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6543            info.nativeLibraryRootRequiresIsa = true;
6544
6545            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6546                    getPrimaryInstructionSet(info)).getAbsolutePath();
6547
6548            if (info.secondaryCpuAbi != null) {
6549                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6550                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6551            }
6552        }
6553    }
6554
6555    /**
6556     * Calculate the abis and roots for a bundled app. These can uniquely
6557     * be determined from the contents of the system partition, i.e whether
6558     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6559     * of this information, and instead assume that the system was built
6560     * sensibly.
6561     */
6562    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6563                                           PackageSetting pkgSetting) {
6564        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6565
6566        // If "/system/lib64/apkname" exists, assume that is the per-package
6567        // native library directory to use; otherwise use "/system/lib/apkname".
6568        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6569        setBundledAppAbi(pkg, apkRoot, apkName);
6570        // pkgSetting might be null during rescan following uninstall of updates
6571        // to a bundled app, so accommodate that possibility.  The settings in
6572        // that case will be established later from the parsed package.
6573        //
6574        // If the settings aren't null, sync them up with what we've just derived.
6575        // note that apkRoot isn't stored in the package settings.
6576        if (pkgSetting != null) {
6577            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6578            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6579        }
6580    }
6581
6582    /**
6583     * Deduces the ABI of a bundled app and sets the relevant fields on the
6584     * parsed pkg object.
6585     *
6586     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6587     *        under which system libraries are installed.
6588     * @param apkName the name of the installed package.
6589     */
6590    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6591        final File codeFile = new File(pkg.codePath);
6592
6593        final boolean has64BitLibs;
6594        final boolean has32BitLibs;
6595        if (isApkFile(codeFile)) {
6596            // Monolithic install
6597            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6598            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6599        } else {
6600            // Cluster install
6601            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6602            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6603                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6604                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6605                has64BitLibs = (new File(rootDir, isa)).exists();
6606            } else {
6607                has64BitLibs = false;
6608            }
6609            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6610                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6611                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6612                has32BitLibs = (new File(rootDir, isa)).exists();
6613            } else {
6614                has32BitLibs = false;
6615            }
6616        }
6617
6618        if (has64BitLibs && !has32BitLibs) {
6619            // The package has 64 bit libs, but not 32 bit libs. Its primary
6620            // ABI should be 64 bit. We can safely assume here that the bundled
6621            // native libraries correspond to the most preferred ABI in the list.
6622
6623            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6624            pkg.applicationInfo.secondaryCpuAbi = null;
6625        } else if (has32BitLibs && !has64BitLibs) {
6626            // The package has 32 bit libs but not 64 bit libs. Its primary
6627            // ABI should be 32 bit.
6628
6629            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6630            pkg.applicationInfo.secondaryCpuAbi = null;
6631        } else if (has32BitLibs && has64BitLibs) {
6632            // The application has both 64 and 32 bit bundled libraries. We check
6633            // here that the app declares multiArch support, and warn if it doesn't.
6634            //
6635            // We will be lenient here and record both ABIs. The primary will be the
6636            // ABI that's higher on the list, i.e, a device that's configured to prefer
6637            // 64 bit apps will see a 64 bit primary ABI,
6638
6639            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6640                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6641            }
6642
6643            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6644                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6645                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6646            } else {
6647                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6648                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6649            }
6650        } else {
6651            pkg.applicationInfo.primaryCpuAbi = null;
6652            pkg.applicationInfo.secondaryCpuAbi = null;
6653        }
6654    }
6655
6656    private void killApplication(String pkgName, int appId, String reason) {
6657        // Request the ActivityManager to kill the process(only for existing packages)
6658        // so that we do not end up in a confused state while the user is still using the older
6659        // version of the application while the new one gets installed.
6660        IActivityManager am = ActivityManagerNative.getDefault();
6661        if (am != null) {
6662            try {
6663                am.killApplicationWithAppId(pkgName, appId, reason);
6664            } catch (RemoteException e) {
6665            }
6666        }
6667    }
6668
6669    void removePackageLI(PackageSetting ps, boolean chatty) {
6670        if (DEBUG_INSTALL) {
6671            if (chatty)
6672                Log.d(TAG, "Removing package " + ps.name);
6673        }
6674
6675        // writer
6676        synchronized (mPackages) {
6677            mPackages.remove(ps.name);
6678            final PackageParser.Package pkg = ps.pkg;
6679            if (pkg != null) {
6680                cleanPackageDataStructuresLILPw(pkg, chatty);
6681            }
6682        }
6683    }
6684
6685    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6686        if (DEBUG_INSTALL) {
6687            if (chatty)
6688                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6689        }
6690
6691        // writer
6692        synchronized (mPackages) {
6693            mPackages.remove(pkg.applicationInfo.packageName);
6694            cleanPackageDataStructuresLILPw(pkg, chatty);
6695        }
6696    }
6697
6698    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6699        int N = pkg.providers.size();
6700        StringBuilder r = null;
6701        int i;
6702        for (i=0; i<N; i++) {
6703            PackageParser.Provider p = pkg.providers.get(i);
6704            mProviders.removeProvider(p);
6705            if (p.info.authority == null) {
6706
6707                /* There was another ContentProvider with this authority when
6708                 * this app was installed so this authority is null,
6709                 * Ignore it as we don't have to unregister the provider.
6710                 */
6711                continue;
6712            }
6713            String names[] = p.info.authority.split(";");
6714            for (int j = 0; j < names.length; j++) {
6715                if (mProvidersByAuthority.get(names[j]) == p) {
6716                    mProvidersByAuthority.remove(names[j]);
6717                    if (DEBUG_REMOVE) {
6718                        if (chatty)
6719                            Log.d(TAG, "Unregistered content provider: " + names[j]
6720                                    + ", className = " + p.info.name + ", isSyncable = "
6721                                    + p.info.isSyncable);
6722                    }
6723                }
6724            }
6725            if (DEBUG_REMOVE && chatty) {
6726                if (r == null) {
6727                    r = new StringBuilder(256);
6728                } else {
6729                    r.append(' ');
6730                }
6731                r.append(p.info.name);
6732            }
6733        }
6734        if (r != null) {
6735            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6736        }
6737
6738        N = pkg.services.size();
6739        r = null;
6740        for (i=0; i<N; i++) {
6741            PackageParser.Service s = pkg.services.get(i);
6742            mServices.removeService(s);
6743            if (chatty) {
6744                if (r == null) {
6745                    r = new StringBuilder(256);
6746                } else {
6747                    r.append(' ');
6748                }
6749                r.append(s.info.name);
6750            }
6751        }
6752        if (r != null) {
6753            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6754        }
6755
6756        N = pkg.receivers.size();
6757        r = null;
6758        for (i=0; i<N; i++) {
6759            PackageParser.Activity a = pkg.receivers.get(i);
6760            mReceivers.removeActivity(a, "receiver");
6761            if (DEBUG_REMOVE && chatty) {
6762                if (r == null) {
6763                    r = new StringBuilder(256);
6764                } else {
6765                    r.append(' ');
6766                }
6767                r.append(a.info.name);
6768            }
6769        }
6770        if (r != null) {
6771            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6772        }
6773
6774        N = pkg.activities.size();
6775        r = null;
6776        for (i=0; i<N; i++) {
6777            PackageParser.Activity a = pkg.activities.get(i);
6778            mActivities.removeActivity(a, "activity");
6779            if (DEBUG_REMOVE && chatty) {
6780                if (r == null) {
6781                    r = new StringBuilder(256);
6782                } else {
6783                    r.append(' ');
6784                }
6785                r.append(a.info.name);
6786            }
6787        }
6788        if (r != null) {
6789            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6790        }
6791
6792        N = pkg.permissions.size();
6793        r = null;
6794        for (i=0; i<N; i++) {
6795            PackageParser.Permission p = pkg.permissions.get(i);
6796            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6797            if (bp == null) {
6798                bp = mSettings.mPermissionTrees.get(p.info.name);
6799            }
6800            if (bp != null && bp.perm == p) {
6801                bp.perm = null;
6802                if (DEBUG_REMOVE && chatty) {
6803                    if (r == null) {
6804                        r = new StringBuilder(256);
6805                    } else {
6806                        r.append(' ');
6807                    }
6808                    r.append(p.info.name);
6809                }
6810            }
6811            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6812                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6813                if (appOpPerms != null) {
6814                    appOpPerms.remove(pkg.packageName);
6815                }
6816            }
6817        }
6818        if (r != null) {
6819            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6820        }
6821
6822        N = pkg.requestedPermissions.size();
6823        r = null;
6824        for (i=0; i<N; i++) {
6825            String perm = pkg.requestedPermissions.get(i);
6826            BasePermission bp = mSettings.mPermissions.get(perm);
6827            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6828                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6829                if (appOpPerms != null) {
6830                    appOpPerms.remove(pkg.packageName);
6831                    if (appOpPerms.isEmpty()) {
6832                        mAppOpPermissionPackages.remove(perm);
6833                    }
6834                }
6835            }
6836        }
6837        if (r != null) {
6838            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6839        }
6840
6841        N = pkg.instrumentation.size();
6842        r = null;
6843        for (i=0; i<N; i++) {
6844            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6845            mInstrumentation.remove(a.getComponentName());
6846            if (DEBUG_REMOVE && chatty) {
6847                if (r == null) {
6848                    r = new StringBuilder(256);
6849                } else {
6850                    r.append(' ');
6851                }
6852                r.append(a.info.name);
6853            }
6854        }
6855        if (r != null) {
6856            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6857        }
6858
6859        r = null;
6860        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6861            // Only system apps can hold shared libraries.
6862            if (pkg.libraryNames != null) {
6863                for (i=0; i<pkg.libraryNames.size(); i++) {
6864                    String name = pkg.libraryNames.get(i);
6865                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6866                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6867                        mSharedLibraries.remove(name);
6868                        if (DEBUG_REMOVE && chatty) {
6869                            if (r == null) {
6870                                r = new StringBuilder(256);
6871                            } else {
6872                                r.append(' ');
6873                            }
6874                            r.append(name);
6875                        }
6876                    }
6877                }
6878            }
6879        }
6880        if (r != null) {
6881            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6882        }
6883    }
6884
6885    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6886        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6887            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6888                return true;
6889            }
6890        }
6891        return false;
6892    }
6893
6894    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6895    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6896    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6897
6898    private void updatePermissionsLPw(String changingPkg,
6899            PackageParser.Package pkgInfo, int flags) {
6900        // Make sure there are no dangling permission trees.
6901        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6902        while (it.hasNext()) {
6903            final BasePermission bp = it.next();
6904            if (bp.packageSetting == null) {
6905                // We may not yet have parsed the package, so just see if
6906                // we still know about its settings.
6907                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6908            }
6909            if (bp.packageSetting == null) {
6910                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6911                        + " from package " + bp.sourcePackage);
6912                it.remove();
6913            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6914                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6915                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6916                            + " from package " + bp.sourcePackage);
6917                    flags |= UPDATE_PERMISSIONS_ALL;
6918                    it.remove();
6919                }
6920            }
6921        }
6922
6923        // Make sure all dynamic permissions have been assigned to a package,
6924        // and make sure there are no dangling permissions.
6925        it = mSettings.mPermissions.values().iterator();
6926        while (it.hasNext()) {
6927            final BasePermission bp = it.next();
6928            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6929                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6930                        + bp.name + " pkg=" + bp.sourcePackage
6931                        + " info=" + bp.pendingInfo);
6932                if (bp.packageSetting == null && bp.pendingInfo != null) {
6933                    final BasePermission tree = findPermissionTreeLP(bp.name);
6934                    if (tree != null && tree.perm != null) {
6935                        bp.packageSetting = tree.packageSetting;
6936                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6937                                new PermissionInfo(bp.pendingInfo));
6938                        bp.perm.info.packageName = tree.perm.info.packageName;
6939                        bp.perm.info.name = bp.name;
6940                        bp.uid = tree.uid;
6941                    }
6942                }
6943            }
6944            if (bp.packageSetting == null) {
6945                // We may not yet have parsed the package, so just see if
6946                // we still know about its settings.
6947                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6948            }
6949            if (bp.packageSetting == null) {
6950                Slog.w(TAG, "Removing dangling permission: " + bp.name
6951                        + " from package " + bp.sourcePackage);
6952                it.remove();
6953            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6954                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6955                    Slog.i(TAG, "Removing old permission: " + bp.name
6956                            + " from package " + bp.sourcePackage);
6957                    flags |= UPDATE_PERMISSIONS_ALL;
6958                    it.remove();
6959                }
6960            }
6961        }
6962
6963        // Now update the permissions for all packages, in particular
6964        // replace the granted permissions of the system packages.
6965        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6966            for (PackageParser.Package pkg : mPackages.values()) {
6967                if (pkg != pkgInfo) {
6968                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6969                            changingPkg);
6970                }
6971            }
6972        }
6973
6974        if (pkgInfo != null) {
6975            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6976        }
6977    }
6978
6979    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6980            String packageOfInterest) {
6981        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6982        if (ps == null) {
6983            return;
6984        }
6985        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6986        ArraySet<String> origPermissions = gp.grantedPermissions;
6987        boolean changedPermission = false;
6988
6989        if (replace) {
6990            ps.permissionsFixed = false;
6991            if (gp == ps) {
6992                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6993                gp.grantedPermissions.clear();
6994                gp.gids = mGlobalGids;
6995            }
6996        }
6997
6998        if (gp.gids == null) {
6999            gp.gids = mGlobalGids;
7000        }
7001
7002        final int N = pkg.requestedPermissions.size();
7003        for (int i=0; i<N; i++) {
7004            final String name = pkg.requestedPermissions.get(i);
7005            final boolean required = pkg.requestedPermissionsRequired.get(i);
7006            final BasePermission bp = mSettings.mPermissions.get(name);
7007            if (DEBUG_INSTALL) {
7008                if (gp != ps) {
7009                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
7010                }
7011            }
7012
7013            if (bp == null || bp.packageSetting == null) {
7014                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7015                    Slog.w(TAG, "Unknown permission " + name
7016                            + " in package " + pkg.packageName);
7017                }
7018                continue;
7019            }
7020
7021            final String perm = bp.name;
7022            boolean allowed;
7023            boolean allowedSig = false;
7024            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
7025                // Keep track of app op permissions.
7026                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
7027                if (pkgs == null) {
7028                    pkgs = new ArraySet<>();
7029                    mAppOpPermissionPackages.put(bp.name, pkgs);
7030                }
7031                pkgs.add(pkg.packageName);
7032            }
7033            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
7034            if (level == PermissionInfo.PROTECTION_NORMAL
7035                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
7036                // We grant a normal or dangerous permission if any of the following
7037                // are true:
7038                // 1) The permission is required
7039                // 2) The permission is optional, but was granted in the past
7040                // 3) The permission is optional, but was requested by an
7041                //    app in /system (not /data)
7042                //
7043                // Otherwise, reject the permission.
7044                allowed = (required || origPermissions.contains(perm)
7045                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
7046            } else if (bp.packageSetting == null) {
7047                // This permission is invalid; skip it.
7048                allowed = false;
7049            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
7050                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
7051                if (allowed) {
7052                    allowedSig = true;
7053                }
7054            } else {
7055                allowed = false;
7056            }
7057            if (DEBUG_INSTALL) {
7058                if (gp != ps) {
7059                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
7060                }
7061            }
7062            if (allowed) {
7063                if (!isSystemApp(ps) && ps.permissionsFixed) {
7064                    // If this is an existing, non-system package, then
7065                    // we can't add any new permissions to it.
7066                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
7067                        // Except...  if this is a permission that was added
7068                        // to the platform (note: need to only do this when
7069                        // updating the platform).
7070                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
7071                    }
7072                }
7073                if (allowed) {
7074                    if (!gp.grantedPermissions.contains(perm)) {
7075                        changedPermission = true;
7076                        gp.grantedPermissions.add(perm);
7077                        gp.gids = appendInts(gp.gids, bp.gids);
7078                    } else if (!ps.haveGids) {
7079                        gp.gids = appendInts(gp.gids, bp.gids);
7080                    }
7081                } else {
7082                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7083                        Slog.w(TAG, "Not granting permission " + perm
7084                                + " to package " + pkg.packageName
7085                                + " because it was previously installed without");
7086                    }
7087                }
7088            } else {
7089                if (gp.grantedPermissions.remove(perm)) {
7090                    changedPermission = true;
7091                    gp.gids = removeInts(gp.gids, bp.gids);
7092                    Slog.i(TAG, "Un-granting permission " + perm
7093                            + " from package " + pkg.packageName
7094                            + " (protectionLevel=" + bp.protectionLevel
7095                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7096                            + ")");
7097                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
7098                    // Don't print warning for app op permissions, since it is fine for them
7099                    // not to be granted, there is a UI for the user to decide.
7100                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7101                        Slog.w(TAG, "Not granting permission " + perm
7102                                + " to package " + pkg.packageName
7103                                + " (protectionLevel=" + bp.protectionLevel
7104                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7105                                + ")");
7106                    }
7107                }
7108            }
7109        }
7110
7111        if ((changedPermission || replace) && !ps.permissionsFixed &&
7112                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
7113            // This is the first that we have heard about this package, so the
7114            // permissions we have now selected are fixed until explicitly
7115            // changed.
7116            ps.permissionsFixed = true;
7117        }
7118        ps.haveGids = true;
7119    }
7120
7121    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7122        boolean allowed = false;
7123        final int NP = PackageParser.NEW_PERMISSIONS.length;
7124        for (int ip=0; ip<NP; ip++) {
7125            final PackageParser.NewPermissionInfo npi
7126                    = PackageParser.NEW_PERMISSIONS[ip];
7127            if (npi.name.equals(perm)
7128                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7129                allowed = true;
7130                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7131                        + pkg.packageName);
7132                break;
7133            }
7134        }
7135        return allowed;
7136    }
7137
7138    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7139                                          BasePermission bp, ArraySet<String> origPermissions) {
7140        boolean allowed;
7141        allowed = (compareSignatures(
7142                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7143                        == PackageManager.SIGNATURE_MATCH)
7144                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7145                        == PackageManager.SIGNATURE_MATCH);
7146        if (!allowed && (bp.protectionLevel
7147                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7148            if (isSystemApp(pkg)) {
7149                // For updated system applications, a system permission
7150                // is granted only if it had been defined by the original application.
7151                if (isUpdatedSystemApp(pkg)) {
7152                    final PackageSetting sysPs = mSettings
7153                            .getDisabledSystemPkgLPr(pkg.packageName);
7154                    final GrantedPermissions origGp = sysPs.sharedUser != null
7155                            ? sysPs.sharedUser : sysPs;
7156
7157                    if (origGp.grantedPermissions.contains(perm)) {
7158                        // If the original was granted this permission, we take
7159                        // that grant decision as read and propagate it to the
7160                        // update.
7161                        allowed = true;
7162                    } else {
7163                        // The system apk may have been updated with an older
7164                        // version of the one on the data partition, but which
7165                        // granted a new system permission that it didn't have
7166                        // before.  In this case we do want to allow the app to
7167                        // now get the new permission if the ancestral apk is
7168                        // privileged to get it.
7169                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7170                            for (int j=0;
7171                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7172                                if (perm.equals(
7173                                        sysPs.pkg.requestedPermissions.get(j))) {
7174                                    allowed = true;
7175                                    break;
7176                                }
7177                            }
7178                        }
7179                    }
7180                } else {
7181                    allowed = isPrivilegedApp(pkg);
7182                }
7183            }
7184        }
7185        if (!allowed && (bp.protectionLevel
7186                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7187            // For development permissions, a development permission
7188            // is granted only if it was already granted.
7189            allowed = origPermissions.contains(perm);
7190        }
7191        return allowed;
7192    }
7193
7194    final class ActivityIntentResolver
7195            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7196        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7197                boolean defaultOnly, int userId) {
7198            if (!sUserManager.exists(userId)) return null;
7199            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7200            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7201        }
7202
7203        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7204                int userId) {
7205            if (!sUserManager.exists(userId)) return null;
7206            mFlags = flags;
7207            return super.queryIntent(intent, resolvedType,
7208                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7209        }
7210
7211        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7212                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7213            if (!sUserManager.exists(userId)) return null;
7214            if (packageActivities == null) {
7215                return null;
7216            }
7217            mFlags = flags;
7218            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7219            final int N = packageActivities.size();
7220            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7221                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7222
7223            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7224            for (int i = 0; i < N; ++i) {
7225                intentFilters = packageActivities.get(i).intents;
7226                if (intentFilters != null && intentFilters.size() > 0) {
7227                    PackageParser.ActivityIntentInfo[] array =
7228                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7229                    intentFilters.toArray(array);
7230                    listCut.add(array);
7231                }
7232            }
7233            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7234        }
7235
7236        public final void addActivity(PackageParser.Activity a, String type) {
7237            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7238            mActivities.put(a.getComponentName(), a);
7239            if (DEBUG_SHOW_INFO)
7240                Log.v(
7241                TAG, "  " + type + " " +
7242                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7243            if (DEBUG_SHOW_INFO)
7244                Log.v(TAG, "    Class=" + a.info.name);
7245            final int NI = a.intents.size();
7246            for (int j=0; j<NI; j++) {
7247                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7248                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7249                    intent.setPriority(0);
7250                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7251                            + a.className + " with priority > 0, forcing to 0");
7252                }
7253                if (DEBUG_SHOW_INFO) {
7254                    Log.v(TAG, "    IntentFilter:");
7255                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7256                }
7257                if (!intent.debugCheck()) {
7258                    Log.w(TAG, "==> For Activity " + a.info.name);
7259                }
7260                addFilter(intent);
7261            }
7262        }
7263
7264        public final void removeActivity(PackageParser.Activity a, String type) {
7265            mActivities.remove(a.getComponentName());
7266            if (DEBUG_SHOW_INFO) {
7267                Log.v(TAG, "  " + type + " "
7268                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7269                                : a.info.name) + ":");
7270                Log.v(TAG, "    Class=" + a.info.name);
7271            }
7272            final int NI = a.intents.size();
7273            for (int j=0; j<NI; j++) {
7274                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7275                if (DEBUG_SHOW_INFO) {
7276                    Log.v(TAG, "    IntentFilter:");
7277                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7278                }
7279                removeFilter(intent);
7280            }
7281        }
7282
7283        @Override
7284        protected boolean allowFilterResult(
7285                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7286            ActivityInfo filterAi = filter.activity.info;
7287            for (int i=dest.size()-1; i>=0; i--) {
7288                ActivityInfo destAi = dest.get(i).activityInfo;
7289                if (destAi.name == filterAi.name
7290                        && destAi.packageName == filterAi.packageName) {
7291                    return false;
7292                }
7293            }
7294            return true;
7295        }
7296
7297        @Override
7298        protected ActivityIntentInfo[] newArray(int size) {
7299            return new ActivityIntentInfo[size];
7300        }
7301
7302        @Override
7303        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7304            if (!sUserManager.exists(userId)) return true;
7305            PackageParser.Package p = filter.activity.owner;
7306            if (p != null) {
7307                PackageSetting ps = (PackageSetting)p.mExtras;
7308                if (ps != null) {
7309                    // System apps are never considered stopped for purposes of
7310                    // filtering, because there may be no way for the user to
7311                    // actually re-launch them.
7312                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7313                            && ps.getStopped(userId);
7314                }
7315            }
7316            return false;
7317        }
7318
7319        @Override
7320        protected boolean isPackageForFilter(String packageName,
7321                PackageParser.ActivityIntentInfo info) {
7322            return packageName.equals(info.activity.owner.packageName);
7323        }
7324
7325        @Override
7326        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7327                int match, int userId) {
7328            if (!sUserManager.exists(userId)) return null;
7329            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7330                return null;
7331            }
7332            final PackageParser.Activity activity = info.activity;
7333            if (mSafeMode && (activity.info.applicationInfo.flags
7334                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7335                return null;
7336            }
7337            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7338            if (ps == null) {
7339                return null;
7340            }
7341            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7342                    ps.readUserState(userId), userId);
7343            if (ai == null) {
7344                return null;
7345            }
7346            final ResolveInfo res = new ResolveInfo();
7347            res.activityInfo = ai;
7348            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7349                res.filter = info;
7350            }
7351            res.priority = info.getPriority();
7352            res.preferredOrder = activity.owner.mPreferredOrder;
7353            //System.out.println("Result: " + res.activityInfo.className +
7354            //                   " = " + res.priority);
7355            res.match = match;
7356            res.isDefault = info.hasDefault;
7357            res.labelRes = info.labelRes;
7358            res.nonLocalizedLabel = info.nonLocalizedLabel;
7359            if (userNeedsBadging(userId)) {
7360                res.noResourceId = true;
7361            } else {
7362                res.icon = info.icon;
7363            }
7364            res.system = isSystemApp(res.activityInfo.applicationInfo);
7365            return res;
7366        }
7367
7368        @Override
7369        protected void sortResults(List<ResolveInfo> results) {
7370            Collections.sort(results, mResolvePrioritySorter);
7371        }
7372
7373        @Override
7374        protected void dumpFilter(PrintWriter out, String prefix,
7375                PackageParser.ActivityIntentInfo filter) {
7376            out.print(prefix); out.print(
7377                    Integer.toHexString(System.identityHashCode(filter.activity)));
7378                    out.print(' ');
7379                    filter.activity.printComponentShortName(out);
7380                    out.print(" filter ");
7381                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7382        }
7383
7384//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7385//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7386//            final List<ResolveInfo> retList = Lists.newArrayList();
7387//            while (i.hasNext()) {
7388//                final ResolveInfo resolveInfo = i.next();
7389//                if (isEnabledLP(resolveInfo.activityInfo)) {
7390//                    retList.add(resolveInfo);
7391//                }
7392//            }
7393//            return retList;
7394//        }
7395
7396        // Keys are String (activity class name), values are Activity.
7397        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7398                = new ArrayMap<ComponentName, PackageParser.Activity>();
7399        private int mFlags;
7400    }
7401
7402    private final class ServiceIntentResolver
7403            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7404        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7405                boolean defaultOnly, int userId) {
7406            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7407            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7408        }
7409
7410        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7411                int userId) {
7412            if (!sUserManager.exists(userId)) return null;
7413            mFlags = flags;
7414            return super.queryIntent(intent, resolvedType,
7415                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7416        }
7417
7418        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7419                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7420            if (!sUserManager.exists(userId)) return null;
7421            if (packageServices == null) {
7422                return null;
7423            }
7424            mFlags = flags;
7425            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7426            final int N = packageServices.size();
7427            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7428                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7429
7430            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7431            for (int i = 0; i < N; ++i) {
7432                intentFilters = packageServices.get(i).intents;
7433                if (intentFilters != null && intentFilters.size() > 0) {
7434                    PackageParser.ServiceIntentInfo[] array =
7435                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7436                    intentFilters.toArray(array);
7437                    listCut.add(array);
7438                }
7439            }
7440            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7441        }
7442
7443        public final void addService(PackageParser.Service s) {
7444            mServices.put(s.getComponentName(), s);
7445            if (DEBUG_SHOW_INFO) {
7446                Log.v(TAG, "  "
7447                        + (s.info.nonLocalizedLabel != null
7448                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7449                Log.v(TAG, "    Class=" + s.info.name);
7450            }
7451            final int NI = s.intents.size();
7452            int j;
7453            for (j=0; j<NI; j++) {
7454                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7455                if (DEBUG_SHOW_INFO) {
7456                    Log.v(TAG, "    IntentFilter:");
7457                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7458                }
7459                if (!intent.debugCheck()) {
7460                    Log.w(TAG, "==> For Service " + s.info.name);
7461                }
7462                addFilter(intent);
7463            }
7464        }
7465
7466        public final void removeService(PackageParser.Service s) {
7467            mServices.remove(s.getComponentName());
7468            if (DEBUG_SHOW_INFO) {
7469                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7470                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7471                Log.v(TAG, "    Class=" + s.info.name);
7472            }
7473            final int NI = s.intents.size();
7474            int j;
7475            for (j=0; j<NI; j++) {
7476                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7477                if (DEBUG_SHOW_INFO) {
7478                    Log.v(TAG, "    IntentFilter:");
7479                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7480                }
7481                removeFilter(intent);
7482            }
7483        }
7484
7485        @Override
7486        protected boolean allowFilterResult(
7487                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7488            ServiceInfo filterSi = filter.service.info;
7489            for (int i=dest.size()-1; i>=0; i--) {
7490                ServiceInfo destAi = dest.get(i).serviceInfo;
7491                if (destAi.name == filterSi.name
7492                        && destAi.packageName == filterSi.packageName) {
7493                    return false;
7494                }
7495            }
7496            return true;
7497        }
7498
7499        @Override
7500        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7501            return new PackageParser.ServiceIntentInfo[size];
7502        }
7503
7504        @Override
7505        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7506            if (!sUserManager.exists(userId)) return true;
7507            PackageParser.Package p = filter.service.owner;
7508            if (p != null) {
7509                PackageSetting ps = (PackageSetting)p.mExtras;
7510                if (ps != null) {
7511                    // System apps are never considered stopped for purposes of
7512                    // filtering, because there may be no way for the user to
7513                    // actually re-launch them.
7514                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7515                            && ps.getStopped(userId);
7516                }
7517            }
7518            return false;
7519        }
7520
7521        @Override
7522        protected boolean isPackageForFilter(String packageName,
7523                PackageParser.ServiceIntentInfo info) {
7524            return packageName.equals(info.service.owner.packageName);
7525        }
7526
7527        @Override
7528        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7529                int match, int userId) {
7530            if (!sUserManager.exists(userId)) return null;
7531            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7532            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7533                return null;
7534            }
7535            final PackageParser.Service service = info.service;
7536            if (mSafeMode && (service.info.applicationInfo.flags
7537                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7538                return null;
7539            }
7540            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7541            if (ps == null) {
7542                return null;
7543            }
7544            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7545                    ps.readUserState(userId), userId);
7546            if (si == null) {
7547                return null;
7548            }
7549            final ResolveInfo res = new ResolveInfo();
7550            res.serviceInfo = si;
7551            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7552                res.filter = filter;
7553            }
7554            res.priority = info.getPriority();
7555            res.preferredOrder = service.owner.mPreferredOrder;
7556            //System.out.println("Result: " + res.activityInfo.className +
7557            //                   " = " + res.priority);
7558            res.match = match;
7559            res.isDefault = info.hasDefault;
7560            res.labelRes = info.labelRes;
7561            res.nonLocalizedLabel = info.nonLocalizedLabel;
7562            res.icon = info.icon;
7563            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7564            return res;
7565        }
7566
7567        @Override
7568        protected void sortResults(List<ResolveInfo> results) {
7569            Collections.sort(results, mResolvePrioritySorter);
7570        }
7571
7572        @Override
7573        protected void dumpFilter(PrintWriter out, String prefix,
7574                PackageParser.ServiceIntentInfo filter) {
7575            out.print(prefix); out.print(
7576                    Integer.toHexString(System.identityHashCode(filter.service)));
7577                    out.print(' ');
7578                    filter.service.printComponentShortName(out);
7579                    out.print(" filter ");
7580                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7581        }
7582
7583//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7584//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7585//            final List<ResolveInfo> retList = Lists.newArrayList();
7586//            while (i.hasNext()) {
7587//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7588//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7589//                    retList.add(resolveInfo);
7590//                }
7591//            }
7592//            return retList;
7593//        }
7594
7595        // Keys are String (activity class name), values are Activity.
7596        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7597                = new ArrayMap<ComponentName, PackageParser.Service>();
7598        private int mFlags;
7599    };
7600
7601    private final class ProviderIntentResolver
7602            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7603        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7604                boolean defaultOnly, int userId) {
7605            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7606            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7607        }
7608
7609        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7610                int userId) {
7611            if (!sUserManager.exists(userId))
7612                return null;
7613            mFlags = flags;
7614            return super.queryIntent(intent, resolvedType,
7615                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7616        }
7617
7618        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7619                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7620            if (!sUserManager.exists(userId))
7621                return null;
7622            if (packageProviders == null) {
7623                return null;
7624            }
7625            mFlags = flags;
7626            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7627            final int N = packageProviders.size();
7628            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7629                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7630
7631            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7632            for (int i = 0; i < N; ++i) {
7633                intentFilters = packageProviders.get(i).intents;
7634                if (intentFilters != null && intentFilters.size() > 0) {
7635                    PackageParser.ProviderIntentInfo[] array =
7636                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7637                    intentFilters.toArray(array);
7638                    listCut.add(array);
7639                }
7640            }
7641            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7642        }
7643
7644        public final void addProvider(PackageParser.Provider p) {
7645            if (mProviders.containsKey(p.getComponentName())) {
7646                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7647                return;
7648            }
7649
7650            mProviders.put(p.getComponentName(), p);
7651            if (DEBUG_SHOW_INFO) {
7652                Log.v(TAG, "  "
7653                        + (p.info.nonLocalizedLabel != null
7654                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7655                Log.v(TAG, "    Class=" + p.info.name);
7656            }
7657            final int NI = p.intents.size();
7658            int j;
7659            for (j = 0; j < NI; j++) {
7660                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7661                if (DEBUG_SHOW_INFO) {
7662                    Log.v(TAG, "    IntentFilter:");
7663                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7664                }
7665                if (!intent.debugCheck()) {
7666                    Log.w(TAG, "==> For Provider " + p.info.name);
7667                }
7668                addFilter(intent);
7669            }
7670        }
7671
7672        public final void removeProvider(PackageParser.Provider p) {
7673            mProviders.remove(p.getComponentName());
7674            if (DEBUG_SHOW_INFO) {
7675                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7676                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7677                Log.v(TAG, "    Class=" + p.info.name);
7678            }
7679            final int NI = p.intents.size();
7680            int j;
7681            for (j = 0; j < NI; j++) {
7682                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7683                if (DEBUG_SHOW_INFO) {
7684                    Log.v(TAG, "    IntentFilter:");
7685                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7686                }
7687                removeFilter(intent);
7688            }
7689        }
7690
7691        @Override
7692        protected boolean allowFilterResult(
7693                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7694            ProviderInfo filterPi = filter.provider.info;
7695            for (int i = dest.size() - 1; i >= 0; i--) {
7696                ProviderInfo destPi = dest.get(i).providerInfo;
7697                if (destPi.name == filterPi.name
7698                        && destPi.packageName == filterPi.packageName) {
7699                    return false;
7700                }
7701            }
7702            return true;
7703        }
7704
7705        @Override
7706        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7707            return new PackageParser.ProviderIntentInfo[size];
7708        }
7709
7710        @Override
7711        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7712            if (!sUserManager.exists(userId))
7713                return true;
7714            PackageParser.Package p = filter.provider.owner;
7715            if (p != null) {
7716                PackageSetting ps = (PackageSetting) p.mExtras;
7717                if (ps != null) {
7718                    // System apps are never considered stopped for purposes of
7719                    // filtering, because there may be no way for the user to
7720                    // actually re-launch them.
7721                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7722                            && ps.getStopped(userId);
7723                }
7724            }
7725            return false;
7726        }
7727
7728        @Override
7729        protected boolean isPackageForFilter(String packageName,
7730                PackageParser.ProviderIntentInfo info) {
7731            return packageName.equals(info.provider.owner.packageName);
7732        }
7733
7734        @Override
7735        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7736                int match, int userId) {
7737            if (!sUserManager.exists(userId))
7738                return null;
7739            final PackageParser.ProviderIntentInfo info = filter;
7740            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7741                return null;
7742            }
7743            final PackageParser.Provider provider = info.provider;
7744            if (mSafeMode && (provider.info.applicationInfo.flags
7745                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7746                return null;
7747            }
7748            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7749            if (ps == null) {
7750                return null;
7751            }
7752            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7753                    ps.readUserState(userId), userId);
7754            if (pi == null) {
7755                return null;
7756            }
7757            final ResolveInfo res = new ResolveInfo();
7758            res.providerInfo = pi;
7759            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7760                res.filter = filter;
7761            }
7762            res.priority = info.getPriority();
7763            res.preferredOrder = provider.owner.mPreferredOrder;
7764            res.match = match;
7765            res.isDefault = info.hasDefault;
7766            res.labelRes = info.labelRes;
7767            res.nonLocalizedLabel = info.nonLocalizedLabel;
7768            res.icon = info.icon;
7769            res.system = isSystemApp(res.providerInfo.applicationInfo);
7770            return res;
7771        }
7772
7773        @Override
7774        protected void sortResults(List<ResolveInfo> results) {
7775            Collections.sort(results, mResolvePrioritySorter);
7776        }
7777
7778        @Override
7779        protected void dumpFilter(PrintWriter out, String prefix,
7780                PackageParser.ProviderIntentInfo filter) {
7781            out.print(prefix);
7782            out.print(
7783                    Integer.toHexString(System.identityHashCode(filter.provider)));
7784            out.print(' ');
7785            filter.provider.printComponentShortName(out);
7786            out.print(" filter ");
7787            out.println(Integer.toHexString(System.identityHashCode(filter)));
7788        }
7789
7790        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7791                = new ArrayMap<ComponentName, PackageParser.Provider>();
7792        private int mFlags;
7793    };
7794
7795    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7796            new Comparator<ResolveInfo>() {
7797        public int compare(ResolveInfo r1, ResolveInfo r2) {
7798            int v1 = r1.priority;
7799            int v2 = r2.priority;
7800            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7801            if (v1 != v2) {
7802                return (v1 > v2) ? -1 : 1;
7803            }
7804            v1 = r1.preferredOrder;
7805            v2 = r2.preferredOrder;
7806            if (v1 != v2) {
7807                return (v1 > v2) ? -1 : 1;
7808            }
7809            if (r1.isDefault != r2.isDefault) {
7810                return r1.isDefault ? -1 : 1;
7811            }
7812            v1 = r1.match;
7813            v2 = r2.match;
7814            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7815            if (v1 != v2) {
7816                return (v1 > v2) ? -1 : 1;
7817            }
7818            if (r1.system != r2.system) {
7819                return r1.system ? -1 : 1;
7820            }
7821            return 0;
7822        }
7823    };
7824
7825    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7826            new Comparator<ProviderInfo>() {
7827        public int compare(ProviderInfo p1, ProviderInfo p2) {
7828            final int v1 = p1.initOrder;
7829            final int v2 = p2.initOrder;
7830            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7831        }
7832    };
7833
7834    static final void sendPackageBroadcast(String action, String pkg,
7835            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7836            int[] userIds) {
7837        IActivityManager am = ActivityManagerNative.getDefault();
7838        if (am != null) {
7839            try {
7840                if (userIds == null) {
7841                    userIds = am.getRunningUserIds();
7842                }
7843                for (int id : userIds) {
7844                    final Intent intent = new Intent(action,
7845                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7846                    if (extras != null) {
7847                        intent.putExtras(extras);
7848                    }
7849                    if (targetPkg != null) {
7850                        intent.setPackage(targetPkg);
7851                    }
7852                    // Modify the UID when posting to other users
7853                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7854                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7855                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7856                        intent.putExtra(Intent.EXTRA_UID, uid);
7857                    }
7858                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7859                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7860                    if (DEBUG_BROADCASTS) {
7861                        RuntimeException here = new RuntimeException("here");
7862                        here.fillInStackTrace();
7863                        Slog.d(TAG, "Sending to user " + id + ": "
7864                                + intent.toShortString(false, true, false, false)
7865                                + " " + intent.getExtras(), here);
7866                    }
7867                    am.broadcastIntent(null, intent, null, finishedReceiver,
7868                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7869                            finishedReceiver != null, false, id);
7870                }
7871            } catch (RemoteException ex) {
7872            }
7873        }
7874    }
7875
7876    /**
7877     * Check if the external storage media is available. This is true if there
7878     * is a mounted external storage medium or if the external storage is
7879     * emulated.
7880     */
7881    private boolean isExternalMediaAvailable() {
7882        return mMediaMounted || Environment.isExternalStorageEmulated();
7883    }
7884
7885    @Override
7886    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7887        // writer
7888        synchronized (mPackages) {
7889            if (!isExternalMediaAvailable()) {
7890                // If the external storage is no longer mounted at this point,
7891                // the caller may not have been able to delete all of this
7892                // packages files and can not delete any more.  Bail.
7893                return null;
7894            }
7895            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7896            if (lastPackage != null) {
7897                pkgs.remove(lastPackage);
7898            }
7899            if (pkgs.size() > 0) {
7900                return pkgs.get(0);
7901            }
7902        }
7903        return null;
7904    }
7905
7906    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7907        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7908                userId, andCode ? 1 : 0, packageName);
7909        if (mSystemReady) {
7910            msg.sendToTarget();
7911        } else {
7912            if (mPostSystemReadyMessages == null) {
7913                mPostSystemReadyMessages = new ArrayList<>();
7914            }
7915            mPostSystemReadyMessages.add(msg);
7916        }
7917    }
7918
7919    void startCleaningPackages() {
7920        // reader
7921        synchronized (mPackages) {
7922            if (!isExternalMediaAvailable()) {
7923                return;
7924            }
7925            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7926                return;
7927            }
7928        }
7929        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7930        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7931        IActivityManager am = ActivityManagerNative.getDefault();
7932        if (am != null) {
7933            try {
7934                am.startService(null, intent, null, UserHandle.USER_OWNER);
7935            } catch (RemoteException e) {
7936            }
7937        }
7938    }
7939
7940    @Override
7941    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7942            int installFlags, String installerPackageName, VerificationParams verificationParams,
7943            String packageAbiOverride) {
7944        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7945                packageAbiOverride, UserHandle.getCallingUserId());
7946    }
7947
7948    @Override
7949    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7950            int installFlags, String installerPackageName, VerificationParams verificationParams,
7951            String packageAbiOverride, int userId) {
7952        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7953
7954        final int callingUid = Binder.getCallingUid();
7955        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7956
7957        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7958            try {
7959                if (observer != null) {
7960                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7961                }
7962            } catch (RemoteException re) {
7963            }
7964            return;
7965        }
7966
7967        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7968            installFlags |= PackageManager.INSTALL_FROM_ADB;
7969
7970        } else {
7971            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7972            // about installerPackageName.
7973
7974            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7975            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7976        }
7977
7978        UserHandle user;
7979        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7980            user = UserHandle.ALL;
7981        } else {
7982            user = new UserHandle(userId);
7983        }
7984
7985        verificationParams.setInstallerUid(callingUid);
7986
7987        final File originFile = new File(originPath);
7988        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7989
7990        final Message msg = mHandler.obtainMessage(INIT_COPY);
7991        msg.obj = new InstallParams(origin, observer, installFlags,
7992                installerPackageName, verificationParams, user, packageAbiOverride);
7993        mHandler.sendMessage(msg);
7994    }
7995
7996    void installStage(String packageName, File stagedDir, String stagedCid,
7997            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7998            String installerPackageName, int installerUid, UserHandle user) {
7999        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
8000                params.referrerUri, installerUid, null);
8001
8002        final OriginInfo origin;
8003        if (stagedDir != null) {
8004            origin = OriginInfo.fromStagedFile(stagedDir);
8005        } else {
8006            origin = OriginInfo.fromStagedContainer(stagedCid);
8007        }
8008
8009        final Message msg = mHandler.obtainMessage(INIT_COPY);
8010        msg.obj = new InstallParams(origin, observer, params.installFlags,
8011                installerPackageName, verifParams, user, params.abiOverride);
8012        mHandler.sendMessage(msg);
8013    }
8014
8015    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
8016        Bundle extras = new Bundle(1);
8017        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
8018
8019        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
8020                packageName, extras, null, null, new int[] {userId});
8021        try {
8022            IActivityManager am = ActivityManagerNative.getDefault();
8023            final boolean isSystem =
8024                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
8025            if (isSystem && am.isUserRunning(userId, false)) {
8026                // The just-installed/enabled app is bundled on the system, so presumed
8027                // to be able to run automatically without needing an explicit launch.
8028                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
8029                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
8030                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
8031                        .setPackage(packageName);
8032                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
8033                        android.app.AppOpsManager.OP_NONE, false, false, userId);
8034            }
8035        } catch (RemoteException e) {
8036            // shouldn't happen
8037            Slog.w(TAG, "Unable to bootstrap installed package", e);
8038        }
8039    }
8040
8041    @Override
8042    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
8043            int userId) {
8044        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8045        PackageSetting pkgSetting;
8046        final int uid = Binder.getCallingUid();
8047        enforceCrossUserPermission(uid, userId, true, true,
8048                "setApplicationHiddenSetting for user " + userId);
8049
8050        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
8051            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
8052            return false;
8053        }
8054
8055        long callingId = Binder.clearCallingIdentity();
8056        try {
8057            boolean sendAdded = false;
8058            boolean sendRemoved = false;
8059            // writer
8060            synchronized (mPackages) {
8061                pkgSetting = mSettings.mPackages.get(packageName);
8062                if (pkgSetting == null) {
8063                    return false;
8064                }
8065                if (pkgSetting.getHidden(userId) != hidden) {
8066                    pkgSetting.setHidden(hidden, userId);
8067                    mSettings.writePackageRestrictionsLPr(userId);
8068                    if (hidden) {
8069                        sendRemoved = true;
8070                    } else {
8071                        sendAdded = true;
8072                    }
8073                }
8074            }
8075            if (sendAdded) {
8076                sendPackageAddedForUser(packageName, pkgSetting, userId);
8077                return true;
8078            }
8079            if (sendRemoved) {
8080                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8081                        "hiding pkg");
8082                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8083            }
8084        } finally {
8085            Binder.restoreCallingIdentity(callingId);
8086        }
8087        return false;
8088    }
8089
8090    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8091            int userId) {
8092        final PackageRemovedInfo info = new PackageRemovedInfo();
8093        info.removedPackage = packageName;
8094        info.removedUsers = new int[] {userId};
8095        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8096        info.sendBroadcast(false, false, false);
8097    }
8098
8099    /**
8100     * Returns true if application is not found or there was an error. Otherwise it returns
8101     * the hidden state of the package for the given user.
8102     */
8103    @Override
8104    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8105        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8106        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8107                false, "getApplicationHidden for user " + userId);
8108        PackageSetting pkgSetting;
8109        long callingId = Binder.clearCallingIdentity();
8110        try {
8111            // writer
8112            synchronized (mPackages) {
8113                pkgSetting = mSettings.mPackages.get(packageName);
8114                if (pkgSetting == null) {
8115                    return true;
8116                }
8117                return pkgSetting.getHidden(userId);
8118            }
8119        } finally {
8120            Binder.restoreCallingIdentity(callingId);
8121        }
8122    }
8123
8124    /**
8125     * @hide
8126     */
8127    @Override
8128    public int installExistingPackageAsUser(String packageName, int userId) {
8129        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8130                null);
8131        PackageSetting pkgSetting;
8132        final int uid = Binder.getCallingUid();
8133        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8134                + userId);
8135        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8136            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8137        }
8138
8139        long callingId = Binder.clearCallingIdentity();
8140        try {
8141            boolean sendAdded = false;
8142            Bundle extras = new Bundle(1);
8143
8144            // writer
8145            synchronized (mPackages) {
8146                pkgSetting = mSettings.mPackages.get(packageName);
8147                if (pkgSetting == null) {
8148                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8149                }
8150                if (!pkgSetting.getInstalled(userId)) {
8151                    pkgSetting.setInstalled(true, userId);
8152                    pkgSetting.setHidden(false, userId);
8153                    mSettings.writePackageRestrictionsLPr(userId);
8154                    sendAdded = true;
8155                }
8156            }
8157
8158            if (sendAdded) {
8159                sendPackageAddedForUser(packageName, pkgSetting, userId);
8160            }
8161        } finally {
8162            Binder.restoreCallingIdentity(callingId);
8163        }
8164
8165        return PackageManager.INSTALL_SUCCEEDED;
8166    }
8167
8168    boolean isUserRestricted(int userId, String restrictionKey) {
8169        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8170        if (restrictions.getBoolean(restrictionKey, false)) {
8171            Log.w(TAG, "User is restricted: " + restrictionKey);
8172            return true;
8173        }
8174        return false;
8175    }
8176
8177    @Override
8178    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8179        mContext.enforceCallingOrSelfPermission(
8180                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8181                "Only package verification agents can verify applications");
8182
8183        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8184        final PackageVerificationResponse response = new PackageVerificationResponse(
8185                verificationCode, Binder.getCallingUid());
8186        msg.arg1 = id;
8187        msg.obj = response;
8188        mHandler.sendMessage(msg);
8189    }
8190
8191    @Override
8192    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8193            long millisecondsToDelay) {
8194        mContext.enforceCallingOrSelfPermission(
8195                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8196                "Only package verification agents can extend verification timeouts");
8197
8198        final PackageVerificationState state = mPendingVerification.get(id);
8199        final PackageVerificationResponse response = new PackageVerificationResponse(
8200                verificationCodeAtTimeout, Binder.getCallingUid());
8201
8202        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8203            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8204        }
8205        if (millisecondsToDelay < 0) {
8206            millisecondsToDelay = 0;
8207        }
8208        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8209                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8210            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8211        }
8212
8213        if ((state != null) && !state.timeoutExtended()) {
8214            state.extendTimeout();
8215
8216            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8217            msg.arg1 = id;
8218            msg.obj = response;
8219            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8220        }
8221    }
8222
8223    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8224            int verificationCode, UserHandle user) {
8225        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8226        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8227        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8228        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8229        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8230
8231        mContext.sendBroadcastAsUser(intent, user,
8232                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8233    }
8234
8235    private ComponentName matchComponentForVerifier(String packageName,
8236            List<ResolveInfo> receivers) {
8237        ActivityInfo targetReceiver = null;
8238
8239        final int NR = receivers.size();
8240        for (int i = 0; i < NR; i++) {
8241            final ResolveInfo info = receivers.get(i);
8242            if (info.activityInfo == null) {
8243                continue;
8244            }
8245
8246            if (packageName.equals(info.activityInfo.packageName)) {
8247                targetReceiver = info.activityInfo;
8248                break;
8249            }
8250        }
8251
8252        if (targetReceiver == null) {
8253            return null;
8254        }
8255
8256        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8257    }
8258
8259    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8260            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8261        if (pkgInfo.verifiers.length == 0) {
8262            return null;
8263        }
8264
8265        final int N = pkgInfo.verifiers.length;
8266        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8267        for (int i = 0; i < N; i++) {
8268            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8269
8270            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8271                    receivers);
8272            if (comp == null) {
8273                continue;
8274            }
8275
8276            final int verifierUid = getUidForVerifier(verifierInfo);
8277            if (verifierUid == -1) {
8278                continue;
8279            }
8280
8281            if (DEBUG_VERIFY) {
8282                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8283                        + " with the correct signature");
8284            }
8285            sufficientVerifiers.add(comp);
8286            verificationState.addSufficientVerifier(verifierUid);
8287        }
8288
8289        return sufficientVerifiers;
8290    }
8291
8292    private int getUidForVerifier(VerifierInfo verifierInfo) {
8293        synchronized (mPackages) {
8294            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8295            if (pkg == null) {
8296                return -1;
8297            } else if (pkg.mSignatures.length != 1) {
8298                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8299                        + " has more than one signature; ignoring");
8300                return -1;
8301            }
8302
8303            /*
8304             * If the public key of the package's signature does not match
8305             * our expected public key, then this is a different package and
8306             * we should skip.
8307             */
8308
8309            final byte[] expectedPublicKey;
8310            try {
8311                final Signature verifierSig = pkg.mSignatures[0];
8312                final PublicKey publicKey = verifierSig.getPublicKey();
8313                expectedPublicKey = publicKey.getEncoded();
8314            } catch (CertificateException e) {
8315                return -1;
8316            }
8317
8318            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8319
8320            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8321                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8322                        + " does not have the expected public key; ignoring");
8323                return -1;
8324            }
8325
8326            return pkg.applicationInfo.uid;
8327        }
8328    }
8329
8330    @Override
8331    public void finishPackageInstall(int token) {
8332        enforceSystemOrRoot("Only the system is allowed to finish installs");
8333
8334        if (DEBUG_INSTALL) {
8335            Slog.v(TAG, "BM finishing package install for " + token);
8336        }
8337
8338        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8339        mHandler.sendMessage(msg);
8340    }
8341
8342    /**
8343     * Get the verification agent timeout.
8344     *
8345     * @return verification timeout in milliseconds
8346     */
8347    private long getVerificationTimeout() {
8348        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8349                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8350                DEFAULT_VERIFICATION_TIMEOUT);
8351    }
8352
8353    /**
8354     * Get the default verification agent response code.
8355     *
8356     * @return default verification response code
8357     */
8358    private int getDefaultVerificationResponse() {
8359        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8360                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8361                DEFAULT_VERIFICATION_RESPONSE);
8362    }
8363
8364    /**
8365     * Check whether or not package verification has been enabled.
8366     *
8367     * @return true if verification should be performed
8368     */
8369    private boolean isVerificationEnabled(int userId, int installFlags) {
8370        if (!DEFAULT_VERIFY_ENABLE) {
8371            return false;
8372        }
8373
8374        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8375
8376        // Check if installing from ADB
8377        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8378            // Do not run verification in a test harness environment
8379            if (ActivityManager.isRunningInTestHarness()) {
8380                return false;
8381            }
8382            if (ensureVerifyAppsEnabled) {
8383                return true;
8384            }
8385            // Check if the developer does not want package verification for ADB installs
8386            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8387                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8388                return false;
8389            }
8390        }
8391
8392        if (ensureVerifyAppsEnabled) {
8393            return true;
8394        }
8395
8396        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8397                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8398    }
8399
8400    /**
8401     * Get the "allow unknown sources" setting.
8402     *
8403     * @return the current "allow unknown sources" setting
8404     */
8405    private int getUnknownSourcesSettings() {
8406        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8407                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8408                -1);
8409    }
8410
8411    @Override
8412    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8413        final int uid = Binder.getCallingUid();
8414        // writer
8415        synchronized (mPackages) {
8416            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8417            if (targetPackageSetting == null) {
8418                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8419            }
8420
8421            PackageSetting installerPackageSetting;
8422            if (installerPackageName != null) {
8423                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8424                if (installerPackageSetting == null) {
8425                    throw new IllegalArgumentException("Unknown installer package: "
8426                            + installerPackageName);
8427                }
8428            } else {
8429                installerPackageSetting = null;
8430            }
8431
8432            Signature[] callerSignature;
8433            Object obj = mSettings.getUserIdLPr(uid);
8434            if (obj != null) {
8435                if (obj instanceof SharedUserSetting) {
8436                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8437                } else if (obj instanceof PackageSetting) {
8438                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8439                } else {
8440                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8441                }
8442            } else {
8443                throw new SecurityException("Unknown calling uid " + uid);
8444            }
8445
8446            // Verify: can't set installerPackageName to a package that is
8447            // not signed with the same cert as the caller.
8448            if (installerPackageSetting != null) {
8449                if (compareSignatures(callerSignature,
8450                        installerPackageSetting.signatures.mSignatures)
8451                        != PackageManager.SIGNATURE_MATCH) {
8452                    throw new SecurityException(
8453                            "Caller does not have same cert as new installer package "
8454                            + installerPackageName);
8455                }
8456            }
8457
8458            // Verify: if target already has an installer package, it must
8459            // be signed with the same cert as the caller.
8460            if (targetPackageSetting.installerPackageName != null) {
8461                PackageSetting setting = mSettings.mPackages.get(
8462                        targetPackageSetting.installerPackageName);
8463                // If the currently set package isn't valid, then it's always
8464                // okay to change it.
8465                if (setting != null) {
8466                    if (compareSignatures(callerSignature,
8467                            setting.signatures.mSignatures)
8468                            != PackageManager.SIGNATURE_MATCH) {
8469                        throw new SecurityException(
8470                                "Caller does not have same cert as old installer package "
8471                                + targetPackageSetting.installerPackageName);
8472                    }
8473                }
8474            }
8475
8476            // Okay!
8477            targetPackageSetting.installerPackageName = installerPackageName;
8478            scheduleWriteSettingsLocked();
8479        }
8480    }
8481
8482    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8483        // Queue up an async operation since the package installation may take a little while.
8484        mHandler.post(new Runnable() {
8485            public void run() {
8486                mHandler.removeCallbacks(this);
8487                 // Result object to be returned
8488                PackageInstalledInfo res = new PackageInstalledInfo();
8489                res.returnCode = currentStatus;
8490                res.uid = -1;
8491                res.pkg = null;
8492                res.removedInfo = new PackageRemovedInfo();
8493                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8494                    args.doPreInstall(res.returnCode);
8495                    synchronized (mInstallLock) {
8496                        installPackageLI(args, res);
8497                    }
8498                    args.doPostInstall(res.returnCode, res.uid);
8499                }
8500
8501                // A restore should be performed at this point if (a) the install
8502                // succeeded, (b) the operation is not an update, and (c) the new
8503                // package has not opted out of backup participation.
8504                final boolean update = res.removedInfo.removedPackage != null;
8505                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8506                boolean doRestore = !update
8507                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8508
8509                // Set up the post-install work request bookkeeping.  This will be used
8510                // and cleaned up by the post-install event handling regardless of whether
8511                // there's a restore pass performed.  Token values are >= 1.
8512                int token;
8513                if (mNextInstallToken < 0) mNextInstallToken = 1;
8514                token = mNextInstallToken++;
8515
8516                PostInstallData data = new PostInstallData(args, res);
8517                mRunningInstalls.put(token, data);
8518                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8519
8520                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8521                    // Pass responsibility to the Backup Manager.  It will perform a
8522                    // restore if appropriate, then pass responsibility back to the
8523                    // Package Manager to run the post-install observer callbacks
8524                    // and broadcasts.
8525                    IBackupManager bm = IBackupManager.Stub.asInterface(
8526                            ServiceManager.getService(Context.BACKUP_SERVICE));
8527                    if (bm != null) {
8528                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8529                                + " to BM for possible restore");
8530                        try {
8531                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8532                        } catch (RemoteException e) {
8533                            // can't happen; the backup manager is local
8534                        } catch (Exception e) {
8535                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8536                            doRestore = false;
8537                        }
8538                    } else {
8539                        Slog.e(TAG, "Backup Manager not found!");
8540                        doRestore = false;
8541                    }
8542                }
8543
8544                if (!doRestore) {
8545                    // No restore possible, or the Backup Manager was mysteriously not
8546                    // available -- just fire the post-install work request directly.
8547                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8548                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8549                    mHandler.sendMessage(msg);
8550                }
8551            }
8552        });
8553    }
8554
8555    private abstract class HandlerParams {
8556        private static final int MAX_RETRIES = 4;
8557
8558        /**
8559         * Number of times startCopy() has been attempted and had a non-fatal
8560         * error.
8561         */
8562        private int mRetries = 0;
8563
8564        /** User handle for the user requesting the information or installation. */
8565        private final UserHandle mUser;
8566
8567        HandlerParams(UserHandle user) {
8568            mUser = user;
8569        }
8570
8571        UserHandle getUser() {
8572            return mUser;
8573        }
8574
8575        final boolean startCopy() {
8576            boolean res;
8577            try {
8578                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8579
8580                if (++mRetries > MAX_RETRIES) {
8581                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8582                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8583                    handleServiceError();
8584                    return false;
8585                } else {
8586                    handleStartCopy();
8587                    res = true;
8588                }
8589            } catch (RemoteException e) {
8590                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8591                mHandler.sendEmptyMessage(MCS_RECONNECT);
8592                res = false;
8593            }
8594            handleReturnCode();
8595            return res;
8596        }
8597
8598        final void serviceError() {
8599            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8600            handleServiceError();
8601            handleReturnCode();
8602        }
8603
8604        abstract void handleStartCopy() throws RemoteException;
8605        abstract void handleServiceError();
8606        abstract void handleReturnCode();
8607    }
8608
8609    class MeasureParams extends HandlerParams {
8610        private final PackageStats mStats;
8611        private boolean mSuccess;
8612
8613        private final IPackageStatsObserver mObserver;
8614
8615        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8616            super(new UserHandle(stats.userHandle));
8617            mObserver = observer;
8618            mStats = stats;
8619        }
8620
8621        @Override
8622        public String toString() {
8623            return "MeasureParams{"
8624                + Integer.toHexString(System.identityHashCode(this))
8625                + " " + mStats.packageName + "}";
8626        }
8627
8628        @Override
8629        void handleStartCopy() throws RemoteException {
8630            synchronized (mInstallLock) {
8631                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8632            }
8633
8634            if (mSuccess) {
8635                final boolean mounted;
8636                if (Environment.isExternalStorageEmulated()) {
8637                    mounted = true;
8638                } else {
8639                    final String status = Environment.getExternalStorageState();
8640                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8641                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8642                }
8643
8644                if (mounted) {
8645                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8646
8647                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8648                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8649
8650                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8651                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8652
8653                    // Always subtract cache size, since it's a subdirectory
8654                    mStats.externalDataSize -= mStats.externalCacheSize;
8655
8656                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8657                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8658
8659                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8660                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8661                }
8662            }
8663        }
8664
8665        @Override
8666        void handleReturnCode() {
8667            if (mObserver != null) {
8668                try {
8669                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8670                } catch (RemoteException e) {
8671                    Slog.i(TAG, "Observer no longer exists.");
8672                }
8673            }
8674        }
8675
8676        @Override
8677        void handleServiceError() {
8678            Slog.e(TAG, "Could not measure application " + mStats.packageName
8679                            + " external storage");
8680        }
8681    }
8682
8683    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8684            throws RemoteException {
8685        long result = 0;
8686        for (File path : paths) {
8687            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8688        }
8689        return result;
8690    }
8691
8692    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8693        for (File path : paths) {
8694            try {
8695                mcs.clearDirectory(path.getAbsolutePath());
8696            } catch (RemoteException e) {
8697            }
8698        }
8699    }
8700
8701    static class OriginInfo {
8702        /**
8703         * Location where install is coming from, before it has been
8704         * copied/renamed into place. This could be a single monolithic APK
8705         * file, or a cluster directory. This location may be untrusted.
8706         */
8707        final File file;
8708        final String cid;
8709
8710        /**
8711         * Flag indicating that {@link #file} or {@link #cid} has already been
8712         * staged, meaning downstream users don't need to defensively copy the
8713         * contents.
8714         */
8715        final boolean staged;
8716
8717        /**
8718         * Flag indicating that {@link #file} or {@link #cid} is an already
8719         * installed app that is being moved.
8720         */
8721        final boolean existing;
8722
8723        final String resolvedPath;
8724        final File resolvedFile;
8725
8726        static OriginInfo fromNothing() {
8727            return new OriginInfo(null, null, false, false);
8728        }
8729
8730        static OriginInfo fromUntrustedFile(File file) {
8731            return new OriginInfo(file, null, false, false);
8732        }
8733
8734        static OriginInfo fromExistingFile(File file) {
8735            return new OriginInfo(file, null, false, true);
8736        }
8737
8738        static OriginInfo fromStagedFile(File file) {
8739            return new OriginInfo(file, null, true, false);
8740        }
8741
8742        static OriginInfo fromStagedContainer(String cid) {
8743            return new OriginInfo(null, cid, true, false);
8744        }
8745
8746        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8747            this.file = file;
8748            this.cid = cid;
8749            this.staged = staged;
8750            this.existing = existing;
8751
8752            if (cid != null) {
8753                resolvedPath = PackageHelper.getSdDir(cid);
8754                resolvedFile = new File(resolvedPath);
8755            } else if (file != null) {
8756                resolvedPath = file.getAbsolutePath();
8757                resolvedFile = file;
8758            } else {
8759                resolvedPath = null;
8760                resolvedFile = null;
8761            }
8762        }
8763    }
8764
8765    class InstallParams extends HandlerParams {
8766        final OriginInfo origin;
8767        final IPackageInstallObserver2 observer;
8768        int installFlags;
8769        final String installerPackageName;
8770        final VerificationParams verificationParams;
8771        private InstallArgs mArgs;
8772        private int mRet;
8773        final String packageAbiOverride;
8774
8775        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8776                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8777                String packageAbiOverride) {
8778            super(user);
8779            this.origin = origin;
8780            this.observer = observer;
8781            this.installFlags = installFlags;
8782            this.installerPackageName = installerPackageName;
8783            this.verificationParams = verificationParams;
8784            this.packageAbiOverride = packageAbiOverride;
8785        }
8786
8787        @Override
8788        public String toString() {
8789            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8790                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8791        }
8792
8793        public ManifestDigest getManifestDigest() {
8794            if (verificationParams == null) {
8795                return null;
8796            }
8797            return verificationParams.getManifestDigest();
8798        }
8799
8800        private int installLocationPolicy(PackageInfoLite pkgLite) {
8801            String packageName = pkgLite.packageName;
8802            int installLocation = pkgLite.installLocation;
8803            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8804            // reader
8805            synchronized (mPackages) {
8806                PackageParser.Package pkg = mPackages.get(packageName);
8807                if (pkg != null) {
8808                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8809                        // Check for downgrading.
8810                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8811                            if (pkgLite.versionCode < pkg.mVersionCode) {
8812                                Slog.w(TAG, "Can't install update of " + packageName
8813                                        + " update version " + pkgLite.versionCode
8814                                        + " is older than installed version "
8815                                        + pkg.mVersionCode);
8816                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8817                            }
8818                        }
8819                        // Check for updated system application.
8820                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8821                            if (onSd) {
8822                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8823                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8824                            }
8825                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8826                        } else {
8827                            if (onSd) {
8828                                // Install flag overrides everything.
8829                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8830                            }
8831                            // If current upgrade specifies particular preference
8832                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8833                                // Application explicitly specified internal.
8834                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8835                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8836                                // App explictly prefers external. Let policy decide
8837                            } else {
8838                                // Prefer previous location
8839                                if (isExternal(pkg)) {
8840                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8841                                }
8842                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8843                            }
8844                        }
8845                    } else {
8846                        // Invalid install. Return error code
8847                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8848                    }
8849                }
8850            }
8851            // All the special cases have been taken care of.
8852            // Return result based on recommended install location.
8853            if (onSd) {
8854                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8855            }
8856            return pkgLite.recommendedInstallLocation;
8857        }
8858
8859        /*
8860         * Invoke remote method to get package information and install
8861         * location values. Override install location based on default
8862         * policy if needed and then create install arguments based
8863         * on the install location.
8864         */
8865        public void handleStartCopy() throws RemoteException {
8866            int ret = PackageManager.INSTALL_SUCCEEDED;
8867
8868            // If we're already staged, we've firmly committed to an install location
8869            if (origin.staged) {
8870                if (origin.file != null) {
8871                    installFlags |= PackageManager.INSTALL_INTERNAL;
8872                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8873                } else if (origin.cid != null) {
8874                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8875                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8876                } else {
8877                    throw new IllegalStateException("Invalid stage location");
8878                }
8879            }
8880
8881            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8882            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8883
8884            PackageInfoLite pkgLite = null;
8885
8886            if (onInt && onSd) {
8887                // Check if both bits are set.
8888                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8889                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8890            } else {
8891                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8892                        packageAbiOverride);
8893
8894                /*
8895                 * If we have too little free space, try to free cache
8896                 * before giving up.
8897                 */
8898                if (!origin.staged && pkgLite.recommendedInstallLocation
8899                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8900                    // TODO: focus freeing disk space on the target device
8901                    final StorageManager storage = StorageManager.from(mContext);
8902                    final long lowThreshold = storage.getStorageLowBytes(
8903                            Environment.getDataDirectory());
8904
8905                    final long sizeBytes = mContainerService.calculateInstalledSize(
8906                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8907
8908                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8909                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8910                                installFlags, packageAbiOverride);
8911                    }
8912
8913                    /*
8914                     * The cache free must have deleted the file we
8915                     * downloaded to install.
8916                     *
8917                     * TODO: fix the "freeCache" call to not delete
8918                     *       the file we care about.
8919                     */
8920                    if (pkgLite.recommendedInstallLocation
8921                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8922                        pkgLite.recommendedInstallLocation
8923                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8924                    }
8925                }
8926            }
8927
8928            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8929                int loc = pkgLite.recommendedInstallLocation;
8930                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8931                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8932                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8933                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8934                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8935                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8936                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8937                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8938                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8939                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8940                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8941                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8942                } else {
8943                    // Override with defaults if needed.
8944                    loc = installLocationPolicy(pkgLite);
8945                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8946                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8947                    } else if (!onSd && !onInt) {
8948                        // Override install location with flags
8949                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8950                            // Set the flag to install on external media.
8951                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8952                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8953                        } else {
8954                            // Make sure the flag for installing on external
8955                            // media is unset
8956                            installFlags |= PackageManager.INSTALL_INTERNAL;
8957                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8958                        }
8959                    }
8960                }
8961            }
8962
8963            final InstallArgs args = createInstallArgs(this);
8964            mArgs = args;
8965
8966            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8967                 /*
8968                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8969                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8970                 */
8971                int userIdentifier = getUser().getIdentifier();
8972                if (userIdentifier == UserHandle.USER_ALL
8973                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8974                    userIdentifier = UserHandle.USER_OWNER;
8975                }
8976
8977                /*
8978                 * Determine if we have any installed package verifiers. If we
8979                 * do, then we'll defer to them to verify the packages.
8980                 */
8981                final int requiredUid = mRequiredVerifierPackage == null ? -1
8982                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8983                if (!origin.existing && requiredUid != -1
8984                        && isVerificationEnabled(userIdentifier, installFlags)) {
8985                    final Intent verification = new Intent(
8986                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8987                    verification.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
8988                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8989                            PACKAGE_MIME_TYPE);
8990                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8991
8992                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8993                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8994                            0 /* TODO: Which userId? */);
8995
8996                    if (DEBUG_VERIFY) {
8997                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8998                                + verification.toString() + " with " + pkgLite.verifiers.length
8999                                + " optional verifiers");
9000                    }
9001
9002                    final int verificationId = mPendingVerificationToken++;
9003
9004                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
9005
9006                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
9007                            installerPackageName);
9008
9009                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
9010                            installFlags);
9011
9012                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
9013                            pkgLite.packageName);
9014
9015                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
9016                            pkgLite.versionCode);
9017
9018                    if (verificationParams != null) {
9019                        if (verificationParams.getVerificationURI() != null) {
9020                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
9021                                 verificationParams.getVerificationURI());
9022                        }
9023                        if (verificationParams.getOriginatingURI() != null) {
9024                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
9025                                  verificationParams.getOriginatingURI());
9026                        }
9027                        if (verificationParams.getReferrer() != null) {
9028                            verification.putExtra(Intent.EXTRA_REFERRER,
9029                                  verificationParams.getReferrer());
9030                        }
9031                        if (verificationParams.getOriginatingUid() >= 0) {
9032                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
9033                                  verificationParams.getOriginatingUid());
9034                        }
9035                        if (verificationParams.getInstallerUid() >= 0) {
9036                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
9037                                  verificationParams.getInstallerUid());
9038                        }
9039                    }
9040
9041                    final PackageVerificationState verificationState = new PackageVerificationState(
9042                            requiredUid, args);
9043
9044                    mPendingVerification.append(verificationId, verificationState);
9045
9046                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
9047                            receivers, verificationState);
9048
9049                    /*
9050                     * If any sufficient verifiers were listed in the package
9051                     * manifest, attempt to ask them.
9052                     */
9053                    if (sufficientVerifiers != null) {
9054                        final int N = sufficientVerifiers.size();
9055                        if (N == 0) {
9056                            Slog.i(TAG, "Additional verifiers required, but none installed.");
9057                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9058                        } else {
9059                            for (int i = 0; i < N; i++) {
9060                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9061
9062                                final Intent sufficientIntent = new Intent(verification);
9063                                sufficientIntent.setComponent(verifierComponent);
9064
9065                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9066                            }
9067                        }
9068                    }
9069
9070                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9071                            mRequiredVerifierPackage, receivers);
9072                    if (ret == PackageManager.INSTALL_SUCCEEDED
9073                            && mRequiredVerifierPackage != null) {
9074                        /*
9075                         * Send the intent to the required verification agent,
9076                         * but only start the verification timeout after the
9077                         * target BroadcastReceivers have run.
9078                         */
9079                        verification.setComponent(requiredVerifierComponent);
9080                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9081                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9082                                new BroadcastReceiver() {
9083                                    @Override
9084                                    public void onReceive(Context context, Intent intent) {
9085                                        final Message msg = mHandler
9086                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9087                                        msg.arg1 = verificationId;
9088                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9089                                    }
9090                                }, null, 0, null, null);
9091
9092                        /*
9093                         * We don't want the copy to proceed until verification
9094                         * succeeds, so null out this field.
9095                         */
9096                        mArgs = null;
9097                    }
9098                } else {
9099                    /*
9100                     * No package verification is enabled, so immediately start
9101                     * the remote call to initiate copy using temporary file.
9102                     */
9103                    ret = args.copyApk(mContainerService, true);
9104                }
9105            }
9106
9107            mRet = ret;
9108        }
9109
9110        @Override
9111        void handleReturnCode() {
9112            // If mArgs is null, then MCS couldn't be reached. When it
9113            // reconnects, it will try again to install. At that point, this
9114            // will succeed.
9115            if (mArgs != null) {
9116                processPendingInstall(mArgs, mRet);
9117            }
9118        }
9119
9120        @Override
9121        void handleServiceError() {
9122            mArgs = createInstallArgs(this);
9123            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9124        }
9125
9126        public boolean isForwardLocked() {
9127            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9128        }
9129    }
9130
9131    /**
9132     * Used during creation of InstallArgs
9133     *
9134     * @param installFlags package installation flags
9135     * @return true if should be installed on external storage
9136     */
9137    private static boolean installOnSd(int installFlags) {
9138        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9139            return false;
9140        }
9141        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9142            return true;
9143        }
9144        return false;
9145    }
9146
9147    /**
9148     * Used during creation of InstallArgs
9149     *
9150     * @param installFlags package installation flags
9151     * @return true if should be installed as forward locked
9152     */
9153    private static boolean installForwardLocked(int installFlags) {
9154        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9155    }
9156
9157    private InstallArgs createInstallArgs(InstallParams params) {
9158        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9159            return new AsecInstallArgs(params);
9160        } else {
9161            return new FileInstallArgs(params);
9162        }
9163    }
9164
9165    /**
9166     * Create args that describe an existing installed package. Typically used
9167     * when cleaning up old installs, or used as a move source.
9168     */
9169    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9170            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9171        final boolean isInAsec;
9172        if (installOnSd(installFlags)) {
9173            /* Apps on SD card are always in ASEC containers. */
9174            isInAsec = true;
9175        } else if (installForwardLocked(installFlags)
9176                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9177            /*
9178             * Forward-locked apps are only in ASEC containers if they're the
9179             * new style
9180             */
9181            isInAsec = true;
9182        } else {
9183            isInAsec = false;
9184        }
9185
9186        if (isInAsec) {
9187            return new AsecInstallArgs(codePath, instructionSets,
9188                    installOnSd(installFlags), installForwardLocked(installFlags));
9189        } else {
9190            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9191                    instructionSets);
9192        }
9193    }
9194
9195    static abstract class InstallArgs {
9196        /** @see InstallParams#origin */
9197        final OriginInfo origin;
9198
9199        final IPackageInstallObserver2 observer;
9200        // Always refers to PackageManager flags only
9201        final int installFlags;
9202        final String installerPackageName;
9203        final ManifestDigest manifestDigest;
9204        final UserHandle user;
9205        final String abiOverride;
9206
9207        // The list of instruction sets supported by this app. This is currently
9208        // only used during the rmdex() phase to clean up resources. We can get rid of this
9209        // if we move dex files under the common app path.
9210        /* nullable */ String[] instructionSets;
9211
9212        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9213                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9214                String[] instructionSets, String abiOverride) {
9215            this.origin = origin;
9216            this.installFlags = installFlags;
9217            this.observer = observer;
9218            this.installerPackageName = installerPackageName;
9219            this.manifestDigest = manifestDigest;
9220            this.user = user;
9221            this.instructionSets = instructionSets;
9222            this.abiOverride = abiOverride;
9223        }
9224
9225        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9226        abstract int doPreInstall(int status);
9227
9228        /**
9229         * Rename package into final resting place. All paths on the given
9230         * scanned package should be updated to reflect the rename.
9231         */
9232        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9233        abstract int doPostInstall(int status, int uid);
9234
9235        /** @see PackageSettingBase#codePathString */
9236        abstract String getCodePath();
9237        /** @see PackageSettingBase#resourcePathString */
9238        abstract String getResourcePath();
9239        abstract String getLegacyNativeLibraryPath();
9240
9241        // Need installer lock especially for dex file removal.
9242        abstract void cleanUpResourcesLI();
9243        abstract boolean doPostDeleteLI(boolean delete);
9244        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9245
9246        /**
9247         * Called before the source arguments are copied. This is used mostly
9248         * for MoveParams when it needs to read the source file to put it in the
9249         * destination.
9250         */
9251        int doPreCopy() {
9252            return PackageManager.INSTALL_SUCCEEDED;
9253        }
9254
9255        /**
9256         * Called after the source arguments are copied. This is used mostly for
9257         * MoveParams when it needs to read the source file to put it in the
9258         * destination.
9259         *
9260         * @return
9261         */
9262        int doPostCopy(int uid) {
9263            return PackageManager.INSTALL_SUCCEEDED;
9264        }
9265
9266        protected boolean isFwdLocked() {
9267            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9268        }
9269
9270        protected boolean isExternal() {
9271            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9272        }
9273
9274        UserHandle getUser() {
9275            return user;
9276        }
9277    }
9278
9279    /**
9280     * Logic to handle installation of non-ASEC applications, including copying
9281     * and renaming logic.
9282     */
9283    class FileInstallArgs extends InstallArgs {
9284        private File codeFile;
9285        private File resourceFile;
9286        private File legacyNativeLibraryPath;
9287
9288        // Example topology:
9289        // /data/app/com.example/base.apk
9290        // /data/app/com.example/split_foo.apk
9291        // /data/app/com.example/lib/arm/libfoo.so
9292        // /data/app/com.example/lib/arm64/libfoo.so
9293        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9294
9295        /** New install */
9296        FileInstallArgs(InstallParams params) {
9297            super(params.origin, params.observer, params.installFlags,
9298                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9299                    null /* instruction sets */, params.packageAbiOverride);
9300            if (isFwdLocked()) {
9301                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9302            }
9303        }
9304
9305        /** Existing install */
9306        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9307                String[] instructionSets) {
9308            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9309            this.codeFile = (codePath != null) ? new File(codePath) : null;
9310            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9311            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9312                    new File(legacyNativeLibraryPath) : null;
9313        }
9314
9315        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9316            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9317                    isFwdLocked(), abiOverride);
9318
9319            final StorageManager storage = StorageManager.from(mContext);
9320            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9321        }
9322
9323        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9324            if (origin.staged) {
9325                Slog.d(TAG, origin.file + " already staged; skipping copy");
9326                codeFile = origin.file;
9327                resourceFile = origin.file;
9328                return PackageManager.INSTALL_SUCCEEDED;
9329            }
9330
9331            try {
9332                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9333                codeFile = tempDir;
9334                resourceFile = tempDir;
9335            } catch (IOException e) {
9336                Slog.w(TAG, "Failed to create copy file: " + e);
9337                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9338            }
9339
9340            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9341                @Override
9342                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9343                    if (!FileUtils.isValidExtFilename(name)) {
9344                        throw new IllegalArgumentException("Invalid filename: " + name);
9345                    }
9346                    try {
9347                        final File file = new File(codeFile, name);
9348                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9349                                O_RDWR | O_CREAT, 0644);
9350                        Os.chmod(file.getAbsolutePath(), 0644);
9351                        return new ParcelFileDescriptor(fd);
9352                    } catch (ErrnoException e) {
9353                        throw new RemoteException("Failed to open: " + e.getMessage());
9354                    }
9355                }
9356            };
9357
9358            int ret = PackageManager.INSTALL_SUCCEEDED;
9359            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9360            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9361                Slog.e(TAG, "Failed to copy package");
9362                return ret;
9363            }
9364
9365            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9366            NativeLibraryHelper.Handle handle = null;
9367            try {
9368                handle = NativeLibraryHelper.Handle.create(codeFile);
9369                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9370                        abiOverride);
9371            } catch (IOException e) {
9372                Slog.e(TAG, "Copying native libraries failed", e);
9373                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9374            } finally {
9375                IoUtils.closeQuietly(handle);
9376            }
9377
9378            return ret;
9379        }
9380
9381        int doPreInstall(int status) {
9382            if (status != PackageManager.INSTALL_SUCCEEDED) {
9383                cleanUp();
9384            }
9385            return status;
9386        }
9387
9388        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9389            if (status != PackageManager.INSTALL_SUCCEEDED) {
9390                cleanUp();
9391                return false;
9392            } else {
9393                final File beforeCodeFile = codeFile;
9394                final File afterCodeFile = getNextCodePath(pkg.packageName);
9395
9396                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9397                try {
9398                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9399                } catch (ErrnoException e) {
9400                    Slog.d(TAG, "Failed to rename", e);
9401                    return false;
9402                }
9403
9404                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9405                    Slog.d(TAG, "Failed to restorecon");
9406                    return false;
9407                }
9408
9409                // Reflect the rename internally
9410                codeFile = afterCodeFile;
9411                resourceFile = afterCodeFile;
9412
9413                // Reflect the rename in scanned details
9414                pkg.codePath = afterCodeFile.getAbsolutePath();
9415                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9416                        pkg.baseCodePath);
9417                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9418                        pkg.splitCodePaths);
9419
9420                // Reflect the rename in app info
9421                pkg.applicationInfo.setCodePath(pkg.codePath);
9422                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9423                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9424                pkg.applicationInfo.setResourcePath(pkg.codePath);
9425                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9426                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9427
9428                return true;
9429            }
9430        }
9431
9432        int doPostInstall(int status, int uid) {
9433            if (status != PackageManager.INSTALL_SUCCEEDED) {
9434                cleanUp();
9435            }
9436            return status;
9437        }
9438
9439        @Override
9440        String getCodePath() {
9441            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9442        }
9443
9444        @Override
9445        String getResourcePath() {
9446            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9447        }
9448
9449        @Override
9450        String getLegacyNativeLibraryPath() {
9451            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9452        }
9453
9454        private boolean cleanUp() {
9455            if (codeFile == null || !codeFile.exists()) {
9456                return false;
9457            }
9458
9459            if (codeFile.isDirectory()) {
9460                FileUtils.deleteContents(codeFile);
9461            }
9462            codeFile.delete();
9463
9464            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9465                resourceFile.delete();
9466            }
9467
9468            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9469                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9470                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9471                }
9472                legacyNativeLibraryPath.delete();
9473            }
9474
9475            return true;
9476        }
9477
9478        void cleanUpResourcesLI() {
9479            // Try enumerating all code paths before deleting
9480            List<String> allCodePaths = Collections.EMPTY_LIST;
9481            if (codeFile != null && codeFile.exists()) {
9482                try {
9483                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9484                    allCodePaths = pkg.getAllCodePaths();
9485                } catch (PackageParserException e) {
9486                    // Ignored; we tried our best
9487                }
9488            }
9489
9490            cleanUp();
9491
9492            if (!allCodePaths.isEmpty()) {
9493                if (instructionSets == null) {
9494                    throw new IllegalStateException("instructionSet == null");
9495                }
9496                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9497                for (String codePath : allCodePaths) {
9498                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9499                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9500                        if (retCode < 0) {
9501                            Slog.w(TAG, "Couldn't remove dex file for package: "
9502                                    + " at location " + codePath + ", retcode=" + retCode);
9503                            // we don't consider this to be a failure of the core package deletion
9504                        }
9505                    }
9506                }
9507            }
9508        }
9509
9510        boolean doPostDeleteLI(boolean delete) {
9511            // XXX err, shouldn't we respect the delete flag?
9512            cleanUpResourcesLI();
9513            return true;
9514        }
9515    }
9516
9517    private boolean isAsecExternal(String cid) {
9518        final String asecPath = PackageHelper.getSdFilesystem(cid);
9519        return !asecPath.startsWith(mAsecInternalPath);
9520    }
9521
9522    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9523            PackageManagerException {
9524        if (copyRet < 0) {
9525            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9526                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9527                throw new PackageManagerException(copyRet, message);
9528            }
9529        }
9530    }
9531
9532    /**
9533     * Extract the MountService "container ID" from the full code path of an
9534     * .apk.
9535     */
9536    static String cidFromCodePath(String fullCodePath) {
9537        int eidx = fullCodePath.lastIndexOf("/");
9538        String subStr1 = fullCodePath.substring(0, eidx);
9539        int sidx = subStr1.lastIndexOf("/");
9540        return subStr1.substring(sidx+1, eidx);
9541    }
9542
9543    /**
9544     * Logic to handle installation of ASEC applications, including copying and
9545     * renaming logic.
9546     */
9547    class AsecInstallArgs extends InstallArgs {
9548        static final String RES_FILE_NAME = "pkg.apk";
9549        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9550
9551        String cid;
9552        String packagePath;
9553        String resourcePath;
9554        String legacyNativeLibraryDir;
9555
9556        /** New install */
9557        AsecInstallArgs(InstallParams params) {
9558            super(params.origin, params.observer, params.installFlags,
9559                    params.installerPackageName, params.getManifestDigest(),
9560                    params.getUser(), null /* instruction sets */,
9561                    params.packageAbiOverride);
9562        }
9563
9564        /** Existing install */
9565        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9566                        boolean isExternal, boolean isForwardLocked) {
9567            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9568                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9569                    instructionSets, null);
9570            // Hackily pretend we're still looking at a full code path
9571            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9572                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9573            }
9574
9575            // Extract cid from fullCodePath
9576            int eidx = fullCodePath.lastIndexOf("/");
9577            String subStr1 = fullCodePath.substring(0, eidx);
9578            int sidx = subStr1.lastIndexOf("/");
9579            cid = subStr1.substring(sidx+1, eidx);
9580            setMountPath(subStr1);
9581        }
9582
9583        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9584            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9585                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9586                    instructionSets, null);
9587            this.cid = cid;
9588            setMountPath(PackageHelper.getSdDir(cid));
9589        }
9590
9591        void createCopyFile() {
9592            cid = mInstallerService.allocateExternalStageCidLegacy();
9593        }
9594
9595        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9596            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9597                    abiOverride);
9598
9599            final File target;
9600            if (isExternal()) {
9601                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9602            } else {
9603                target = Environment.getDataDirectory();
9604            }
9605
9606            final StorageManager storage = StorageManager.from(mContext);
9607            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9608        }
9609
9610        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9611            if (origin.staged) {
9612                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9613                cid = origin.cid;
9614                setMountPath(PackageHelper.getSdDir(cid));
9615                return PackageManager.INSTALL_SUCCEEDED;
9616            }
9617
9618            if (temp) {
9619                createCopyFile();
9620            } else {
9621                /*
9622                 * Pre-emptively destroy the container since it's destroyed if
9623                 * copying fails due to it existing anyway.
9624                 */
9625                PackageHelper.destroySdDir(cid);
9626            }
9627
9628            final String newMountPath = imcs.copyPackageToContainer(
9629                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9630                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9631
9632            if (newMountPath != null) {
9633                setMountPath(newMountPath);
9634                return PackageManager.INSTALL_SUCCEEDED;
9635            } else {
9636                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9637            }
9638        }
9639
9640        @Override
9641        String getCodePath() {
9642            return packagePath;
9643        }
9644
9645        @Override
9646        String getResourcePath() {
9647            return resourcePath;
9648        }
9649
9650        @Override
9651        String getLegacyNativeLibraryPath() {
9652            return legacyNativeLibraryDir;
9653        }
9654
9655        int doPreInstall(int status) {
9656            if (status != PackageManager.INSTALL_SUCCEEDED) {
9657                // Destroy container
9658                PackageHelper.destroySdDir(cid);
9659            } else {
9660                boolean mounted = PackageHelper.isContainerMounted(cid);
9661                if (!mounted) {
9662                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9663                            Process.SYSTEM_UID);
9664                    if (newMountPath != null) {
9665                        setMountPath(newMountPath);
9666                    } else {
9667                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9668                    }
9669                }
9670            }
9671            return status;
9672        }
9673
9674        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9675            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9676            String newMountPath = null;
9677            if (PackageHelper.isContainerMounted(cid)) {
9678                // Unmount the container
9679                if (!PackageHelper.unMountSdDir(cid)) {
9680                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9681                    return false;
9682                }
9683            }
9684            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9685                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9686                        " which might be stale. Will try to clean up.");
9687                // Clean up the stale container and proceed to recreate.
9688                if (!PackageHelper.destroySdDir(newCacheId)) {
9689                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9690                    return false;
9691                }
9692                // Successfully cleaned up stale container. Try to rename again.
9693                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9694                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9695                            + " inspite of cleaning it up.");
9696                    return false;
9697                }
9698            }
9699            if (!PackageHelper.isContainerMounted(newCacheId)) {
9700                Slog.w(TAG, "Mounting container " + newCacheId);
9701                newMountPath = PackageHelper.mountSdDir(newCacheId,
9702                        getEncryptKey(), Process.SYSTEM_UID);
9703            } else {
9704                newMountPath = PackageHelper.getSdDir(newCacheId);
9705            }
9706            if (newMountPath == null) {
9707                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9708                return false;
9709            }
9710            Log.i(TAG, "Succesfully renamed " + cid +
9711                    " to " + newCacheId +
9712                    " at new path: " + newMountPath);
9713            cid = newCacheId;
9714
9715            final File beforeCodeFile = new File(packagePath);
9716            setMountPath(newMountPath);
9717            final File afterCodeFile = new File(packagePath);
9718
9719            // Reflect the rename in scanned details
9720            pkg.codePath = afterCodeFile.getAbsolutePath();
9721            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9722                    pkg.baseCodePath);
9723            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9724                    pkg.splitCodePaths);
9725
9726            // Reflect the rename in app info
9727            pkg.applicationInfo.setCodePath(pkg.codePath);
9728            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9729            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9730            pkg.applicationInfo.setResourcePath(pkg.codePath);
9731            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9732            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9733
9734            return true;
9735        }
9736
9737        private void setMountPath(String mountPath) {
9738            final File mountFile = new File(mountPath);
9739
9740            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9741            if (monolithicFile.exists()) {
9742                packagePath = monolithicFile.getAbsolutePath();
9743                if (isFwdLocked()) {
9744                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9745                } else {
9746                    resourcePath = packagePath;
9747                }
9748            } else {
9749                packagePath = mountFile.getAbsolutePath();
9750                resourcePath = packagePath;
9751            }
9752
9753            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9754        }
9755
9756        int doPostInstall(int status, int uid) {
9757            if (status != PackageManager.INSTALL_SUCCEEDED) {
9758                cleanUp();
9759            } else {
9760                final int groupOwner;
9761                final String protectedFile;
9762                if (isFwdLocked()) {
9763                    groupOwner = UserHandle.getSharedAppGid(uid);
9764                    protectedFile = RES_FILE_NAME;
9765                } else {
9766                    groupOwner = -1;
9767                    protectedFile = null;
9768                }
9769
9770                if (uid < Process.FIRST_APPLICATION_UID
9771                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9772                    Slog.e(TAG, "Failed to finalize " + cid);
9773                    PackageHelper.destroySdDir(cid);
9774                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9775                }
9776
9777                boolean mounted = PackageHelper.isContainerMounted(cid);
9778                if (!mounted) {
9779                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9780                }
9781            }
9782            return status;
9783        }
9784
9785        private void cleanUp() {
9786            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9787
9788            // Destroy secure container
9789            PackageHelper.destroySdDir(cid);
9790        }
9791
9792        private List<String> getAllCodePaths() {
9793            final File codeFile = new File(getCodePath());
9794            if (codeFile != null && codeFile.exists()) {
9795                try {
9796                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9797                    return pkg.getAllCodePaths();
9798                } catch (PackageParserException e) {
9799                    // Ignored; we tried our best
9800                }
9801            }
9802            return Collections.EMPTY_LIST;
9803        }
9804
9805        void cleanUpResourcesLI() {
9806            // Enumerate all code paths before deleting
9807            cleanUpResourcesLI(getAllCodePaths());
9808        }
9809
9810        private void cleanUpResourcesLI(List<String> allCodePaths) {
9811            cleanUp();
9812
9813            if (!allCodePaths.isEmpty()) {
9814                if (instructionSets == null) {
9815                    throw new IllegalStateException("instructionSet == null");
9816                }
9817                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9818                for (String codePath : allCodePaths) {
9819                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9820                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9821                        if (retCode < 0) {
9822                            Slog.w(TAG, "Couldn't remove dex file for package: "
9823                                    + " at location " + codePath + ", retcode=" + retCode);
9824                            // we don't consider this to be a failure of the core package deletion
9825                        }
9826                    }
9827                }
9828            }
9829        }
9830
9831        boolean matchContainer(String app) {
9832            if (cid.startsWith(app)) {
9833                return true;
9834            }
9835            return false;
9836        }
9837
9838        String getPackageName() {
9839            return getAsecPackageName(cid);
9840        }
9841
9842        boolean doPostDeleteLI(boolean delete) {
9843            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9844            final List<String> allCodePaths = getAllCodePaths();
9845            boolean mounted = PackageHelper.isContainerMounted(cid);
9846            if (mounted) {
9847                // Unmount first
9848                if (PackageHelper.unMountSdDir(cid)) {
9849                    mounted = false;
9850                }
9851            }
9852            if (!mounted && delete) {
9853                cleanUpResourcesLI(allCodePaths);
9854            }
9855            return !mounted;
9856        }
9857
9858        @Override
9859        int doPreCopy() {
9860            if (isFwdLocked()) {
9861                if (!PackageHelper.fixSdPermissions(cid,
9862                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9863                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9864                }
9865            }
9866
9867            return PackageManager.INSTALL_SUCCEEDED;
9868        }
9869
9870        @Override
9871        int doPostCopy(int uid) {
9872            if (isFwdLocked()) {
9873                if (uid < Process.FIRST_APPLICATION_UID
9874                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9875                                RES_FILE_NAME)) {
9876                    Slog.e(TAG, "Failed to finalize " + cid);
9877                    PackageHelper.destroySdDir(cid);
9878                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9879                }
9880            }
9881
9882            return PackageManager.INSTALL_SUCCEEDED;
9883        }
9884    }
9885
9886    static String getAsecPackageName(String packageCid) {
9887        int idx = packageCid.lastIndexOf("-");
9888        if (idx == -1) {
9889            return packageCid;
9890        }
9891        return packageCid.substring(0, idx);
9892    }
9893
9894    // Utility method used to create code paths based on package name and available index.
9895    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9896        String idxStr = "";
9897        int idx = 1;
9898        // Fall back to default value of idx=1 if prefix is not
9899        // part of oldCodePath
9900        if (oldCodePath != null) {
9901            String subStr = oldCodePath;
9902            // Drop the suffix right away
9903            if (suffix != null && subStr.endsWith(suffix)) {
9904                subStr = subStr.substring(0, subStr.length() - suffix.length());
9905            }
9906            // If oldCodePath already contains prefix find out the
9907            // ending index to either increment or decrement.
9908            int sidx = subStr.lastIndexOf(prefix);
9909            if (sidx != -1) {
9910                subStr = subStr.substring(sidx + prefix.length());
9911                if (subStr != null) {
9912                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9913                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9914                    }
9915                    try {
9916                        idx = Integer.parseInt(subStr);
9917                        if (idx <= 1) {
9918                            idx++;
9919                        } else {
9920                            idx--;
9921                        }
9922                    } catch(NumberFormatException e) {
9923                    }
9924                }
9925            }
9926        }
9927        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9928        return prefix + idxStr;
9929    }
9930
9931    private File getNextCodePath(String packageName) {
9932        int suffix = 1;
9933        File result;
9934        do {
9935            result = new File(mAppInstallDir, packageName + "-" + suffix);
9936            suffix++;
9937        } while (result.exists());
9938        return result;
9939    }
9940
9941    // Utility method used to ignore ADD/REMOVE events
9942    // by directory observer.
9943    private static boolean ignoreCodePath(String fullPathStr) {
9944        String apkName = deriveCodePathName(fullPathStr);
9945        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9946        if (idx != -1 && ((idx+1) < apkName.length())) {
9947            // Make sure the package ends with a numeral
9948            String version = apkName.substring(idx+1);
9949            try {
9950                Integer.parseInt(version);
9951                return true;
9952            } catch (NumberFormatException e) {}
9953        }
9954        return false;
9955    }
9956
9957    // Utility method that returns the relative package path with respect
9958    // to the installation directory. Like say for /data/data/com.test-1.apk
9959    // string com.test-1 is returned.
9960    static String deriveCodePathName(String codePath) {
9961        if (codePath == null) {
9962            return null;
9963        }
9964        final File codeFile = new File(codePath);
9965        final String name = codeFile.getName();
9966        if (codeFile.isDirectory()) {
9967            return name;
9968        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9969            final int lastDot = name.lastIndexOf('.');
9970            return name.substring(0, lastDot);
9971        } else {
9972            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9973            return null;
9974        }
9975    }
9976
9977    class PackageInstalledInfo {
9978        String name;
9979        int uid;
9980        // The set of users that originally had this package installed.
9981        int[] origUsers;
9982        // The set of users that now have this package installed.
9983        int[] newUsers;
9984        PackageParser.Package pkg;
9985        int returnCode;
9986        String returnMsg;
9987        PackageRemovedInfo removedInfo;
9988
9989        public void setError(int code, String msg) {
9990            returnCode = code;
9991            returnMsg = msg;
9992            Slog.w(TAG, msg);
9993        }
9994
9995        public void setError(String msg, PackageParserException e) {
9996            returnCode = e.error;
9997            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9998            Slog.w(TAG, msg, e);
9999        }
10000
10001        public void setError(String msg, PackageManagerException e) {
10002            returnCode = e.error;
10003            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
10004            Slog.w(TAG, msg, e);
10005        }
10006
10007        // In some error cases we want to convey more info back to the observer
10008        String origPackage;
10009        String origPermission;
10010    }
10011
10012    /*
10013     * Install a non-existing package.
10014     */
10015    private void installNewPackageLI(PackageParser.Package pkg,
10016            int parseFlags, int scanFlags, UserHandle user,
10017            String installerPackageName, PackageInstalledInfo res) {
10018        // Remember this for later, in case we need to rollback this install
10019        String pkgName = pkg.packageName;
10020
10021        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
10022        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
10023        synchronized(mPackages) {
10024            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
10025                // A package with the same name is already installed, though
10026                // it has been renamed to an older name.  The package we
10027                // are trying to install should be installed as an update to
10028                // the existing one, but that has not been requested, so bail.
10029                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10030                        + " without first uninstalling package running as "
10031                        + mSettings.mRenamedPackages.get(pkgName));
10032                return;
10033            }
10034            if (mPackages.containsKey(pkgName)) {
10035                // Don't allow installation over an existing package with the same name.
10036                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10037                        + " without first uninstalling.");
10038                return;
10039            }
10040        }
10041
10042        try {
10043            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
10044                    System.currentTimeMillis(), user);
10045
10046            updateSettingsLI(newPackage, installerPackageName, null, null, res);
10047            // delete the partially installed application. the data directory will have to be
10048            // restored if it was already existing
10049            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10050                // remove package from internal structures.  Note that we want deletePackageX to
10051                // delete the package data and cache directories that it created in
10052                // scanPackageLocked, unless those directories existed before we even tried to
10053                // install.
10054                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
10055                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
10056                                res.removedInfo, true);
10057            }
10058
10059        } catch (PackageManagerException e) {
10060            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10061        }
10062    }
10063
10064    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
10065        // Upgrade keysets are being used.  Determine if new package has a superset of the
10066        // required keys.
10067        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
10068        KeySetManagerService ksms = mSettings.mKeySetManagerService;
10069        for (int i = 0; i < upgradeKeySets.length; i++) {
10070            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
10071            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
10072                return true;
10073            }
10074        }
10075        return false;
10076    }
10077
10078    private void replacePackageLI(PackageParser.Package pkg,
10079            int parseFlags, int scanFlags, UserHandle user,
10080            String installerPackageName, PackageInstalledInfo res) {
10081        PackageParser.Package oldPackage;
10082        String pkgName = pkg.packageName;
10083        int[] allUsers;
10084        boolean[] perUserInstalled;
10085
10086        // First find the old package info and check signatures
10087        synchronized(mPackages) {
10088            oldPackage = mPackages.get(pkgName);
10089            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10090            PackageSetting ps = mSettings.mPackages.get(pkgName);
10091            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10092                // default to original signature matching
10093                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10094                    != PackageManager.SIGNATURE_MATCH) {
10095                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10096                            "New package has a different signature: " + pkgName);
10097                    return;
10098                }
10099            } else {
10100                if(!checkUpgradeKeySetLP(ps, pkg)) {
10101                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10102                            "New package not signed by keys specified by upgrade-keysets: "
10103                            + pkgName);
10104                    return;
10105                }
10106            }
10107
10108            // In case of rollback, remember per-user/profile install state
10109            allUsers = sUserManager.getUserIds();
10110            perUserInstalled = new boolean[allUsers.length];
10111            for (int i = 0; i < allUsers.length; i++) {
10112                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10113            }
10114        }
10115
10116        boolean sysPkg = (isSystemApp(oldPackage));
10117        if (sysPkg) {
10118            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10119                    user, allUsers, perUserInstalled, installerPackageName, res);
10120        } else {
10121            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10122                    user, allUsers, perUserInstalled, installerPackageName, res);
10123        }
10124    }
10125
10126    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10127            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10128            int[] allUsers, boolean[] perUserInstalled,
10129            String installerPackageName, PackageInstalledInfo res) {
10130        String pkgName = deletedPackage.packageName;
10131        boolean deletedPkg = true;
10132        boolean updatedSettings = false;
10133
10134        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10135                + deletedPackage);
10136        long origUpdateTime;
10137        if (pkg.mExtras != null) {
10138            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10139        } else {
10140            origUpdateTime = 0;
10141        }
10142
10143        // First delete the existing package while retaining the data directory
10144        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10145                res.removedInfo, true)) {
10146            // If the existing package wasn't successfully deleted
10147            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10148            deletedPkg = false;
10149        } else {
10150            // Successfully deleted the old package; proceed with replace.
10151
10152            // If deleted package lived in a container, give users a chance to
10153            // relinquish resources before killing.
10154            if (isForwardLocked(deletedPackage) || isExternal(deletedPackage)) {
10155                if (DEBUG_INSTALL) {
10156                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10157                }
10158                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10159                final ArrayList<String> pkgList = new ArrayList<String>(1);
10160                pkgList.add(deletedPackage.applicationInfo.packageName);
10161                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10162            }
10163
10164            deleteCodeCacheDirsLI(pkgName);
10165            try {
10166                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10167                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10168                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10169                updatedSettings = true;
10170            } catch (PackageManagerException e) {
10171                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10172            }
10173        }
10174
10175        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10176            // remove package from internal structures.  Note that we want deletePackageX to
10177            // delete the package data and cache directories that it created in
10178            // scanPackageLocked, unless those directories existed before we even tried to
10179            // install.
10180            if(updatedSettings) {
10181                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10182                deletePackageLI(
10183                        pkgName, null, true, allUsers, perUserInstalled,
10184                        PackageManager.DELETE_KEEP_DATA,
10185                                res.removedInfo, true);
10186            }
10187            // Since we failed to install the new package we need to restore the old
10188            // package that we deleted.
10189            if (deletedPkg) {
10190                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10191                File restoreFile = new File(deletedPackage.codePath);
10192                // Parse old package
10193                boolean oldOnSd = isExternal(deletedPackage);
10194                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10195                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10196                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10197                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10198                try {
10199                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10200                } catch (PackageManagerException e) {
10201                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10202                            + e.getMessage());
10203                    return;
10204                }
10205                // Restore of old package succeeded. Update permissions.
10206                // writer
10207                synchronized (mPackages) {
10208                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10209                            UPDATE_PERMISSIONS_ALL);
10210                    // can downgrade to reader
10211                    mSettings.writeLPr();
10212                }
10213                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10214            }
10215        }
10216    }
10217
10218    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10219            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10220            int[] allUsers, boolean[] perUserInstalled,
10221            String installerPackageName, PackageInstalledInfo res) {
10222        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10223                + ", old=" + deletedPackage);
10224        boolean disabledSystem = false;
10225        boolean updatedSettings = false;
10226        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10227        if ((deletedPackage.applicationInfo.flags&ApplicationInfo.FLAG_PRIVILEGED) != 0) {
10228            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10229        }
10230        String packageName = deletedPackage.packageName;
10231        if (packageName == null) {
10232            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10233                    "Attempt to delete null packageName.");
10234            return;
10235        }
10236        PackageParser.Package oldPkg;
10237        PackageSetting oldPkgSetting;
10238        // reader
10239        synchronized (mPackages) {
10240            oldPkg = mPackages.get(packageName);
10241            oldPkgSetting = mSettings.mPackages.get(packageName);
10242            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10243                    (oldPkgSetting == null)) {
10244                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10245                        "Couldn't find package:" + packageName + " information");
10246                return;
10247            }
10248        }
10249
10250        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10251
10252        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10253        res.removedInfo.removedPackage = packageName;
10254        // Remove existing system package
10255        removePackageLI(oldPkgSetting, true);
10256        // writer
10257        synchronized (mPackages) {
10258            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10259            if (!disabledSystem && deletedPackage != null) {
10260                // We didn't need to disable the .apk as a current system package,
10261                // which means we are replacing another update that is already
10262                // installed.  We need to make sure to delete the older one's .apk.
10263                res.removedInfo.args = createInstallArgsForExisting(0,
10264                        deletedPackage.applicationInfo.getCodePath(),
10265                        deletedPackage.applicationInfo.getResourcePath(),
10266                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10267                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10268            } else {
10269                res.removedInfo.args = null;
10270            }
10271        }
10272
10273        // Successfully disabled the old package. Now proceed with re-installation
10274        deleteCodeCacheDirsLI(packageName);
10275
10276        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10277        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10278
10279        PackageParser.Package newPackage = null;
10280        try {
10281            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10282            if (newPackage.mExtras != null) {
10283                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10284                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10285                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10286
10287                // is the update attempting to change shared user? that isn't going to work...
10288                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10289                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10290                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10291                            + " to " + newPkgSetting.sharedUser);
10292                    updatedSettings = true;
10293                }
10294            }
10295
10296            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10297                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10298                updatedSettings = true;
10299            }
10300
10301        } catch (PackageManagerException e) {
10302            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10303        }
10304
10305        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10306            // Re installation failed. Restore old information
10307            // Remove new pkg information
10308            if (newPackage != null) {
10309                removeInstalledPackageLI(newPackage, true);
10310            }
10311            // Add back the old system package
10312            try {
10313                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10314            } catch (PackageManagerException e) {
10315                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10316            }
10317            // Restore the old system information in Settings
10318            synchronized (mPackages) {
10319                if (disabledSystem) {
10320                    mSettings.enableSystemPackageLPw(packageName);
10321                }
10322                if (updatedSettings) {
10323                    mSettings.setInstallerPackageName(packageName,
10324                            oldPkgSetting.installerPackageName);
10325                }
10326                mSettings.writeLPr();
10327            }
10328        }
10329    }
10330
10331    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10332            int[] allUsers, boolean[] perUserInstalled,
10333            PackageInstalledInfo res) {
10334        String pkgName = newPackage.packageName;
10335        synchronized (mPackages) {
10336            //write settings. the installStatus will be incomplete at this stage.
10337            //note that the new package setting would have already been
10338            //added to mPackages. It hasn't been persisted yet.
10339            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10340            mSettings.writeLPr();
10341        }
10342
10343        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10344
10345        synchronized (mPackages) {
10346            updatePermissionsLPw(newPackage.packageName, newPackage,
10347                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10348                            ? UPDATE_PERMISSIONS_ALL : 0));
10349            // For system-bundled packages, we assume that installing an upgraded version
10350            // of the package implies that the user actually wants to run that new code,
10351            // so we enable the package.
10352            if (isSystemApp(newPackage)) {
10353                // NB: implicit assumption that system package upgrades apply to all users
10354                if (DEBUG_INSTALL) {
10355                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10356                }
10357                PackageSetting ps = mSettings.mPackages.get(pkgName);
10358                if (ps != null) {
10359                    if (res.origUsers != null) {
10360                        for (int userHandle : res.origUsers) {
10361                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10362                                    userHandle, installerPackageName);
10363                        }
10364                    }
10365                    // Also convey the prior install/uninstall state
10366                    if (allUsers != null && perUserInstalled != null) {
10367                        for (int i = 0; i < allUsers.length; i++) {
10368                            if (DEBUG_INSTALL) {
10369                                Slog.d(TAG, "    user " + allUsers[i]
10370                                        + " => " + perUserInstalled[i]);
10371                            }
10372                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10373                        }
10374                        // these install state changes will be persisted in the
10375                        // upcoming call to mSettings.writeLPr().
10376                    }
10377                }
10378            }
10379            res.name = pkgName;
10380            res.uid = newPackage.applicationInfo.uid;
10381            res.pkg = newPackage;
10382            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10383            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10384            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10385            //to update install status
10386            mSettings.writeLPr();
10387        }
10388    }
10389
10390    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10391        final int installFlags = args.installFlags;
10392        String installerPackageName = args.installerPackageName;
10393        File tmpPackageFile = new File(args.getCodePath());
10394        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10395        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10396        boolean replace = false;
10397        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10398        // Result object to be returned
10399        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10400
10401        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10402        // Retrieve PackageSettings and parse package
10403        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10404                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10405                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10406        PackageParser pp = new PackageParser();
10407        pp.setSeparateProcesses(mSeparateProcesses);
10408        pp.setDisplayMetrics(mMetrics);
10409
10410        final PackageParser.Package pkg;
10411        try {
10412            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10413        } catch (PackageParserException e) {
10414            res.setError("Failed parse during installPackageLI", e);
10415            return;
10416        }
10417
10418        // Mark that we have an install time CPU ABI override.
10419        pkg.cpuAbiOverride = args.abiOverride;
10420
10421        String pkgName = res.name = pkg.packageName;
10422        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10423            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10424                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10425                return;
10426            }
10427        }
10428
10429        try {
10430            pp.collectCertificates(pkg, parseFlags);
10431            pp.collectManifestDigest(pkg);
10432        } catch (PackageParserException e) {
10433            res.setError("Failed collect during installPackageLI", e);
10434            return;
10435        }
10436
10437        /* If the installer passed in a manifest digest, compare it now. */
10438        if (args.manifestDigest != null) {
10439            if (DEBUG_INSTALL) {
10440                final String parsedManifest = pkg.manifestDigest == null ? "null"
10441                        : pkg.manifestDigest.toString();
10442                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10443                        + parsedManifest);
10444            }
10445
10446            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10447                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10448                return;
10449            }
10450        } else if (DEBUG_INSTALL) {
10451            final String parsedManifest = pkg.manifestDigest == null
10452                    ? "null" : pkg.manifestDigest.toString();
10453            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10454        }
10455
10456        // Get rid of all references to package scan path via parser.
10457        pp = null;
10458        String oldCodePath = null;
10459        boolean systemApp = false;
10460        synchronized (mPackages) {
10461            // Check if installing already existing package
10462            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10463                String oldName = mSettings.mRenamedPackages.get(pkgName);
10464                if (pkg.mOriginalPackages != null
10465                        && pkg.mOriginalPackages.contains(oldName)
10466                        && mPackages.containsKey(oldName)) {
10467                    // This package is derived from an original package,
10468                    // and this device has been updating from that original
10469                    // name.  We must continue using the original name, so
10470                    // rename the new package here.
10471                    pkg.setPackageName(oldName);
10472                    pkgName = pkg.packageName;
10473                    replace = true;
10474                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10475                            + oldName + " pkgName=" + pkgName);
10476                } else if (mPackages.containsKey(pkgName)) {
10477                    // This package, under its official name, already exists
10478                    // on the device; we should replace it.
10479                    replace = true;
10480                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10481                }
10482            }
10483
10484            PackageSetting ps = mSettings.mPackages.get(pkgName);
10485            if (ps != null) {
10486                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10487
10488                // Quick sanity check that we're signed correctly if updating;
10489                // we'll check this again later when scanning, but we want to
10490                // bail early here before tripping over redefined permissions.
10491                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10492                    try {
10493                        verifySignaturesLP(ps, pkg);
10494                    } catch (PackageManagerException e) {
10495                        res.setError(e.error, e.getMessage());
10496                        return;
10497                    }
10498                } else {
10499                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10500                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10501                                + pkg.packageName + " upgrade keys do not match the "
10502                                + "previously installed version");
10503                        return;
10504                    }
10505                }
10506
10507                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10508                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10509                    systemApp = (ps.pkg.applicationInfo.flags &
10510                            ApplicationInfo.FLAG_SYSTEM) != 0;
10511                }
10512                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10513            }
10514
10515            // Check whether the newly-scanned package wants to define an already-defined perm
10516            int N = pkg.permissions.size();
10517            for (int i = N-1; i >= 0; i--) {
10518                PackageParser.Permission perm = pkg.permissions.get(i);
10519                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10520                if (bp != null) {
10521                    // If the defining package is signed with our cert, it's okay.  This
10522                    // also includes the "updating the same package" case, of course.
10523                    // "updating same package" could also involve key-rotation.
10524                    final boolean sigsOk;
10525                    if (!bp.sourcePackage.equals(pkg.packageName)
10526                            || !(bp.packageSetting instanceof PackageSetting)
10527                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10528                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10529                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10530                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10531                    } else {
10532                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10533                    }
10534                    if (!sigsOk) {
10535                        // If the owning package is the system itself, we log but allow
10536                        // install to proceed; we fail the install on all other permission
10537                        // redefinitions.
10538                        if (!bp.sourcePackage.equals("android")) {
10539                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10540                                    + pkg.packageName + " attempting to redeclare permission "
10541                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10542                            res.origPermission = perm.info.name;
10543                            res.origPackage = bp.sourcePackage;
10544                            return;
10545                        } else {
10546                            Slog.w(TAG, "Package " + pkg.packageName
10547                                    + " attempting to redeclare system permission "
10548                                    + perm.info.name + "; ignoring new declaration");
10549                            pkg.permissions.remove(i);
10550                        }
10551                    }
10552                }
10553            }
10554
10555        }
10556
10557        if (systemApp && onSd) {
10558            // Disable updates to system apps on sdcard
10559            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10560                    "Cannot install updates to system apps on sdcard");
10561            return;
10562        }
10563
10564        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10565            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10566            return;
10567        }
10568
10569        if (replace) {
10570            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10571                    installerPackageName, res);
10572        } else {
10573            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10574                    args.user, installerPackageName, res);
10575        }
10576        synchronized (mPackages) {
10577            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10578            if (ps != null) {
10579                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10580            }
10581        }
10582    }
10583
10584    private static boolean isForwardLocked(PackageParser.Package pkg) {
10585        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10586    }
10587
10588    private static boolean isForwardLocked(ApplicationInfo info) {
10589        return (info.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10590    }
10591
10592    private boolean isForwardLocked(PackageSetting ps) {
10593        return (ps.pkgFlags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10594    }
10595
10596    private static boolean isMultiArch(PackageSetting ps) {
10597        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10598    }
10599
10600    private static boolean isMultiArch(ApplicationInfo info) {
10601        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10602    }
10603
10604    private static boolean isExternal(PackageParser.Package pkg) {
10605        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10606    }
10607
10608    private static boolean isExternal(PackageSetting ps) {
10609        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10610    }
10611
10612    private static boolean isExternal(ApplicationInfo info) {
10613        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10614    }
10615
10616    private static boolean isSystemApp(PackageParser.Package pkg) {
10617        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10618    }
10619
10620    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10621        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_PRIVILEGED) != 0;
10622    }
10623
10624    private static boolean isSystemApp(ApplicationInfo info) {
10625        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10626    }
10627
10628    private static boolean isSystemApp(PackageSetting ps) {
10629        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10630    }
10631
10632    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10633        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10634    }
10635
10636    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10637        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10638    }
10639
10640    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10641        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10642    }
10643
10644    private int packageFlagsToInstallFlags(PackageSetting ps) {
10645        int installFlags = 0;
10646        if (isExternal(ps)) {
10647            installFlags |= PackageManager.INSTALL_EXTERNAL;
10648        }
10649        if (isForwardLocked(ps)) {
10650            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10651        }
10652        return installFlags;
10653    }
10654
10655    private void deleteTempPackageFiles() {
10656        final FilenameFilter filter = new FilenameFilter() {
10657            public boolean accept(File dir, String name) {
10658                return name.startsWith("vmdl") && name.endsWith(".tmp");
10659            }
10660        };
10661        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10662            file.delete();
10663        }
10664    }
10665
10666    @Override
10667    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10668            int flags) {
10669        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10670                flags);
10671    }
10672
10673    @Override
10674    public void deletePackage(final String packageName,
10675            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10676        mContext.enforceCallingOrSelfPermission(
10677                android.Manifest.permission.DELETE_PACKAGES, null);
10678        final int uid = Binder.getCallingUid();
10679        if (UserHandle.getUserId(uid) != userId) {
10680            mContext.enforceCallingPermission(
10681                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10682                    "deletePackage for user " + userId);
10683        }
10684        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10685            try {
10686                observer.onPackageDeleted(packageName,
10687                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10688            } catch (RemoteException re) {
10689            }
10690            return;
10691        }
10692
10693        boolean uninstallBlocked = false;
10694        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10695            int[] users = sUserManager.getUserIds();
10696            for (int i = 0; i < users.length; ++i) {
10697                if (getBlockUninstallForUser(packageName, users[i])) {
10698                    uninstallBlocked = true;
10699                    break;
10700                }
10701            }
10702        } else {
10703            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10704        }
10705        if (uninstallBlocked) {
10706            try {
10707                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10708                        null);
10709            } catch (RemoteException re) {
10710            }
10711            return;
10712        }
10713
10714        if (DEBUG_REMOVE) {
10715            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10716        }
10717        // Queue up an async operation since the package deletion may take a little while.
10718        mHandler.post(new Runnable() {
10719            public void run() {
10720                mHandler.removeCallbacks(this);
10721                final int returnCode = deletePackageX(packageName, userId, flags);
10722                if (observer != null) {
10723                    try {
10724                        observer.onPackageDeleted(packageName, returnCode, null);
10725                    } catch (RemoteException e) {
10726                        Log.i(TAG, "Observer no longer exists.");
10727                    } //end catch
10728                } //end if
10729            } //end run
10730        });
10731    }
10732
10733    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10734        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10735                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10736        try {
10737            if (dpm != null) {
10738                if (dpm.isDeviceOwner(packageName)) {
10739                    return true;
10740                }
10741                int[] users;
10742                if (userId == UserHandle.USER_ALL) {
10743                    users = sUserManager.getUserIds();
10744                } else {
10745                    users = new int[]{userId};
10746                }
10747                for (int i = 0; i < users.length; ++i) {
10748                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10749                        return true;
10750                    }
10751                }
10752            }
10753        } catch (RemoteException e) {
10754        }
10755        return false;
10756    }
10757
10758    /**
10759     *  This method is an internal method that could be get invoked either
10760     *  to delete an installed package or to clean up a failed installation.
10761     *  After deleting an installed package, a broadcast is sent to notify any
10762     *  listeners that the package has been installed. For cleaning up a failed
10763     *  installation, the broadcast is not necessary since the package's
10764     *  installation wouldn't have sent the initial broadcast either
10765     *  The key steps in deleting a package are
10766     *  deleting the package information in internal structures like mPackages,
10767     *  deleting the packages base directories through installd
10768     *  updating mSettings to reflect current status
10769     *  persisting settings for later use
10770     *  sending a broadcast if necessary
10771     */
10772    private int deletePackageX(String packageName, int userId, int flags) {
10773        final PackageRemovedInfo info = new PackageRemovedInfo();
10774        final boolean res;
10775
10776        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10777                ? UserHandle.ALL : new UserHandle(userId);
10778
10779        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10780            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10781            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10782        }
10783
10784        boolean removedForAllUsers = false;
10785        boolean systemUpdate = false;
10786
10787        // for the uninstall-updates case and restricted profiles, remember the per-
10788        // userhandle installed state
10789        int[] allUsers;
10790        boolean[] perUserInstalled;
10791        synchronized (mPackages) {
10792            PackageSetting ps = mSettings.mPackages.get(packageName);
10793            allUsers = sUserManager.getUserIds();
10794            perUserInstalled = new boolean[allUsers.length];
10795            for (int i = 0; i < allUsers.length; i++) {
10796                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10797            }
10798        }
10799
10800        synchronized (mInstallLock) {
10801            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10802            res = deletePackageLI(packageName, removeForUser,
10803                    true, allUsers, perUserInstalled,
10804                    flags | REMOVE_CHATTY, info, true);
10805            systemUpdate = info.isRemovedPackageSystemUpdate;
10806            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10807                removedForAllUsers = true;
10808            }
10809            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10810                    + " removedForAllUsers=" + removedForAllUsers);
10811        }
10812
10813        if (res) {
10814            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10815
10816            // If the removed package was a system update, the old system package
10817            // was re-enabled; we need to broadcast this information
10818            if (systemUpdate) {
10819                Bundle extras = new Bundle(1);
10820                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10821                        ? info.removedAppId : info.uid);
10822                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10823
10824                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10825                        extras, null, null, null);
10826                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10827                        extras, null, null, null);
10828                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10829                        null, packageName, null, null);
10830            }
10831        }
10832        // Force a gc here.
10833        Runtime.getRuntime().gc();
10834        // Delete the resources here after sending the broadcast to let
10835        // other processes clean up before deleting resources.
10836        if (info.args != null) {
10837            synchronized (mInstallLock) {
10838                info.args.doPostDeleteLI(true);
10839            }
10840        }
10841
10842        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10843    }
10844
10845    static class PackageRemovedInfo {
10846        String removedPackage;
10847        int uid = -1;
10848        int removedAppId = -1;
10849        int[] removedUsers = null;
10850        boolean isRemovedPackageSystemUpdate = false;
10851        // Clean up resources deleted packages.
10852        InstallArgs args = null;
10853
10854        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10855            Bundle extras = new Bundle(1);
10856            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10857            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10858            if (replacing) {
10859                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10860            }
10861            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10862            if (removedPackage != null) {
10863                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10864                        extras, null, null, removedUsers);
10865                if (fullRemove && !replacing) {
10866                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10867                            extras, null, null, removedUsers);
10868                }
10869            }
10870            if (removedAppId >= 0) {
10871                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10872                        removedUsers);
10873            }
10874        }
10875    }
10876
10877    /*
10878     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10879     * flag is not set, the data directory is removed as well.
10880     * make sure this flag is set for partially installed apps. If not its meaningless to
10881     * delete a partially installed application.
10882     */
10883    private void removePackageDataLI(PackageSetting ps,
10884            int[] allUserHandles, boolean[] perUserInstalled,
10885            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10886        String packageName = ps.name;
10887        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10888        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10889        // Retrieve object to delete permissions for shared user later on
10890        final PackageSetting deletedPs;
10891        // reader
10892        synchronized (mPackages) {
10893            deletedPs = mSettings.mPackages.get(packageName);
10894            if (outInfo != null) {
10895                outInfo.removedPackage = packageName;
10896                outInfo.removedUsers = deletedPs != null
10897                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10898                        : null;
10899            }
10900        }
10901        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10902            removeDataDirsLI(packageName);
10903            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10904        }
10905        // writer
10906        synchronized (mPackages) {
10907            if (deletedPs != null) {
10908                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10909                    if (outInfo != null) {
10910                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10911                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10912                    }
10913                    if (deletedPs != null) {
10914                        updatePermissionsLPw(deletedPs.name, null, 0);
10915                        if (deletedPs.sharedUser != null) {
10916                            // remove permissions associated with package
10917                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10918                        }
10919                    }
10920                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10921                }
10922                // make sure to preserve per-user disabled state if this removal was just
10923                // a downgrade of a system app to the factory package
10924                if (allUserHandles != null && perUserInstalled != null) {
10925                    if (DEBUG_REMOVE) {
10926                        Slog.d(TAG, "Propagating install state across downgrade");
10927                    }
10928                    for (int i = 0; i < allUserHandles.length; i++) {
10929                        if (DEBUG_REMOVE) {
10930                            Slog.d(TAG, "    user " + allUserHandles[i]
10931                                    + " => " + perUserInstalled[i]);
10932                        }
10933                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10934                    }
10935                }
10936            }
10937            // can downgrade to reader
10938            if (writeSettings) {
10939                // Save settings now
10940                mSettings.writeLPr();
10941            }
10942        }
10943        if (outInfo != null) {
10944            // A user ID was deleted here. Go through all users and remove it
10945            // from KeyStore.
10946            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10947        }
10948    }
10949
10950    static boolean locationIsPrivileged(File path) {
10951        try {
10952            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10953                    .getCanonicalPath();
10954            return path.getCanonicalPath().startsWith(privilegedAppDir);
10955        } catch (IOException e) {
10956            Slog.e(TAG, "Unable to access code path " + path);
10957        }
10958        return false;
10959    }
10960
10961    /*
10962     * Tries to delete system package.
10963     */
10964    private boolean deleteSystemPackageLI(PackageSetting newPs,
10965            int[] allUserHandles, boolean[] perUserInstalled,
10966            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10967        final boolean applyUserRestrictions
10968                = (allUserHandles != null) && (perUserInstalled != null);
10969        PackageSetting disabledPs = null;
10970        // Confirm if the system package has been updated
10971        // An updated system app can be deleted. This will also have to restore
10972        // the system pkg from system partition
10973        // reader
10974        synchronized (mPackages) {
10975            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10976        }
10977        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10978                + " disabledPs=" + disabledPs);
10979        if (disabledPs == null) {
10980            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10981            return false;
10982        } else if (DEBUG_REMOVE) {
10983            Slog.d(TAG, "Deleting system pkg from data partition");
10984        }
10985        if (DEBUG_REMOVE) {
10986            if (applyUserRestrictions) {
10987                Slog.d(TAG, "Remembering install states:");
10988                for (int i = 0; i < allUserHandles.length; i++) {
10989                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10990                }
10991            }
10992        }
10993        // Delete the updated package
10994        outInfo.isRemovedPackageSystemUpdate = true;
10995        if (disabledPs.versionCode < newPs.versionCode) {
10996            // Delete data for downgrades
10997            flags &= ~PackageManager.DELETE_KEEP_DATA;
10998        } else {
10999            // Preserve data by setting flag
11000            flags |= PackageManager.DELETE_KEEP_DATA;
11001        }
11002        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
11003                allUserHandles, perUserInstalled, outInfo, writeSettings);
11004        if (!ret) {
11005            return false;
11006        }
11007        // writer
11008        synchronized (mPackages) {
11009            // Reinstate the old system package
11010            mSettings.enableSystemPackageLPw(newPs.name);
11011            // Remove any native libraries from the upgraded package.
11012            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
11013        }
11014        // Install the system package
11015        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
11016        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
11017        if (locationIsPrivileged(disabledPs.codePath)) {
11018            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
11019        }
11020
11021        final PackageParser.Package newPkg;
11022        try {
11023            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
11024        } catch (PackageManagerException e) {
11025            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
11026            return false;
11027        }
11028
11029        // writer
11030        synchronized (mPackages) {
11031            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
11032            updatePermissionsLPw(newPkg.packageName, newPkg,
11033                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
11034            if (applyUserRestrictions) {
11035                if (DEBUG_REMOVE) {
11036                    Slog.d(TAG, "Propagating install state across reinstall");
11037                }
11038                for (int i = 0; i < allUserHandles.length; i++) {
11039                    if (DEBUG_REMOVE) {
11040                        Slog.d(TAG, "    user " + allUserHandles[i]
11041                                + " => " + perUserInstalled[i]);
11042                    }
11043                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
11044                }
11045                // Regardless of writeSettings we need to ensure that this restriction
11046                // state propagation is persisted
11047                mSettings.writeAllUsersPackageRestrictionsLPr();
11048            }
11049            // can downgrade to reader here
11050            if (writeSettings) {
11051                mSettings.writeLPr();
11052            }
11053        }
11054        return true;
11055    }
11056
11057    private boolean deleteInstalledPackageLI(PackageSetting ps,
11058            boolean deleteCodeAndResources, int flags,
11059            int[] allUserHandles, boolean[] perUserInstalled,
11060            PackageRemovedInfo outInfo, boolean writeSettings) {
11061        if (outInfo != null) {
11062            outInfo.uid = ps.appId;
11063        }
11064
11065        // Delete package data from internal structures and also remove data if flag is set
11066        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
11067
11068        // Delete application code and resources
11069        if (deleteCodeAndResources && (outInfo != null)) {
11070            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
11071                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
11072                    getAppDexInstructionSets(ps));
11073            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
11074        }
11075        return true;
11076    }
11077
11078    @Override
11079    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
11080            int userId) {
11081        mContext.enforceCallingOrSelfPermission(
11082                android.Manifest.permission.DELETE_PACKAGES, null);
11083        synchronized (mPackages) {
11084            PackageSetting ps = mSettings.mPackages.get(packageName);
11085            if (ps == null) {
11086                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
11087                return false;
11088            }
11089            if (!ps.getInstalled(userId)) {
11090                // Can't block uninstall for an app that is not installed or enabled.
11091                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11092                return false;
11093            }
11094            ps.setBlockUninstall(blockUninstall, userId);
11095            mSettings.writePackageRestrictionsLPr(userId);
11096        }
11097        return true;
11098    }
11099
11100    @Override
11101    public boolean getBlockUninstallForUser(String packageName, int userId) {
11102        synchronized (mPackages) {
11103            PackageSetting ps = mSettings.mPackages.get(packageName);
11104            if (ps == null) {
11105                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11106                return false;
11107            }
11108            return ps.getBlockUninstall(userId);
11109        }
11110    }
11111
11112    /*
11113     * This method handles package deletion in general
11114     */
11115    private boolean deletePackageLI(String packageName, UserHandle user,
11116            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11117            int flags, PackageRemovedInfo outInfo,
11118            boolean writeSettings) {
11119        if (packageName == null) {
11120            Slog.w(TAG, "Attempt to delete null packageName.");
11121            return false;
11122        }
11123        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11124        PackageSetting ps;
11125        boolean dataOnly = false;
11126        int removeUser = -1;
11127        int appId = -1;
11128        synchronized (mPackages) {
11129            ps = mSettings.mPackages.get(packageName);
11130            if (ps == null) {
11131                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11132                return false;
11133            }
11134            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11135                    && user.getIdentifier() != UserHandle.USER_ALL) {
11136                // The caller is asking that the package only be deleted for a single
11137                // user.  To do this, we just mark its uninstalled state and delete
11138                // its data.  If this is a system app, we only allow this to happen if
11139                // they have set the special DELETE_SYSTEM_APP which requests different
11140                // semantics than normal for uninstalling system apps.
11141                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11142                ps.setUserState(user.getIdentifier(),
11143                        COMPONENT_ENABLED_STATE_DEFAULT,
11144                        false, //installed
11145                        true,  //stopped
11146                        true,  //notLaunched
11147                        false, //hidden
11148                        null, null, null,
11149                        false // blockUninstall
11150                        );
11151                if (!isSystemApp(ps)) {
11152                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11153                        // Other user still have this package installed, so all
11154                        // we need to do is clear this user's data and save that
11155                        // it is uninstalled.
11156                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11157                        removeUser = user.getIdentifier();
11158                        appId = ps.appId;
11159                        mSettings.writePackageRestrictionsLPr(removeUser);
11160                    } else {
11161                        // We need to set it back to 'installed' so the uninstall
11162                        // broadcasts will be sent correctly.
11163                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11164                        ps.setInstalled(true, user.getIdentifier());
11165                    }
11166                } else {
11167                    // This is a system app, so we assume that the
11168                    // other users still have this package installed, so all
11169                    // we need to do is clear this user's data and save that
11170                    // it is uninstalled.
11171                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11172                    removeUser = user.getIdentifier();
11173                    appId = ps.appId;
11174                    mSettings.writePackageRestrictionsLPr(removeUser);
11175                }
11176            }
11177        }
11178
11179        if (removeUser >= 0) {
11180            // From above, we determined that we are deleting this only
11181            // for a single user.  Continue the work here.
11182            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11183            if (outInfo != null) {
11184                outInfo.removedPackage = packageName;
11185                outInfo.removedAppId = appId;
11186                outInfo.removedUsers = new int[] {removeUser};
11187            }
11188            mInstaller.clearUserData(packageName, removeUser);
11189            removeKeystoreDataIfNeeded(removeUser, appId);
11190            schedulePackageCleaning(packageName, removeUser, false);
11191            return true;
11192        }
11193
11194        if (dataOnly) {
11195            // Delete application data first
11196            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11197            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11198            return true;
11199        }
11200
11201        boolean ret = false;
11202        if (isSystemApp(ps)) {
11203            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11204            // When an updated system application is deleted we delete the existing resources as well and
11205            // fall back to existing code in system partition
11206            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11207                    flags, outInfo, writeSettings);
11208        } else {
11209            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11210            // Kill application pre-emptively especially for apps on sd.
11211            killApplication(packageName, ps.appId, "uninstall pkg");
11212            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11213                    allUserHandles, perUserInstalled,
11214                    outInfo, writeSettings);
11215        }
11216
11217        return ret;
11218    }
11219
11220    private final class ClearStorageConnection implements ServiceConnection {
11221        IMediaContainerService mContainerService;
11222
11223        @Override
11224        public void onServiceConnected(ComponentName name, IBinder service) {
11225            synchronized (this) {
11226                mContainerService = IMediaContainerService.Stub.asInterface(service);
11227                notifyAll();
11228            }
11229        }
11230
11231        @Override
11232        public void onServiceDisconnected(ComponentName name) {
11233        }
11234    }
11235
11236    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11237        final boolean mounted;
11238        if (Environment.isExternalStorageEmulated()) {
11239            mounted = true;
11240        } else {
11241            final String status = Environment.getExternalStorageState();
11242
11243            mounted = status.equals(Environment.MEDIA_MOUNTED)
11244                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11245        }
11246
11247        if (!mounted) {
11248            return;
11249        }
11250
11251        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11252        int[] users;
11253        if (userId == UserHandle.USER_ALL) {
11254            users = sUserManager.getUserIds();
11255        } else {
11256            users = new int[] { userId };
11257        }
11258        final ClearStorageConnection conn = new ClearStorageConnection();
11259        if (mContext.bindServiceAsUser(
11260                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11261            try {
11262                for (int curUser : users) {
11263                    long timeout = SystemClock.uptimeMillis() + 5000;
11264                    synchronized (conn) {
11265                        long now = SystemClock.uptimeMillis();
11266                        while (conn.mContainerService == null && now < timeout) {
11267                            try {
11268                                conn.wait(timeout - now);
11269                            } catch (InterruptedException e) {
11270                            }
11271                        }
11272                    }
11273                    if (conn.mContainerService == null) {
11274                        return;
11275                    }
11276
11277                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11278                    clearDirectory(conn.mContainerService,
11279                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11280                    if (allData) {
11281                        clearDirectory(conn.mContainerService,
11282                                userEnv.buildExternalStorageAppDataDirs(packageName));
11283                        clearDirectory(conn.mContainerService,
11284                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11285                    }
11286                }
11287            } finally {
11288                mContext.unbindService(conn);
11289            }
11290        }
11291    }
11292
11293    @Override
11294    public void clearApplicationUserData(final String packageName,
11295            final IPackageDataObserver observer, final int userId) {
11296        mContext.enforceCallingOrSelfPermission(
11297                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11298        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11299        // Queue up an async operation since the package deletion may take a little while.
11300        mHandler.post(new Runnable() {
11301            public void run() {
11302                mHandler.removeCallbacks(this);
11303                final boolean succeeded;
11304                synchronized (mInstallLock) {
11305                    succeeded = clearApplicationUserDataLI(packageName, userId);
11306                }
11307                clearExternalStorageDataSync(packageName, userId, true);
11308                if (succeeded) {
11309                    // invoke DeviceStorageMonitor's update method to clear any notifications
11310                    DeviceStorageMonitorInternal
11311                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11312                    if (dsm != null) {
11313                        dsm.checkMemory();
11314                    }
11315                }
11316                if(observer != null) {
11317                    try {
11318                        observer.onRemoveCompleted(packageName, succeeded);
11319                    } catch (RemoteException e) {
11320                        Log.i(TAG, "Observer no longer exists.");
11321                    }
11322                } //end if observer
11323            } //end run
11324        });
11325    }
11326
11327    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11328        if (packageName == null) {
11329            Slog.w(TAG, "Attempt to delete null packageName.");
11330            return false;
11331        }
11332
11333        // Try finding details about the requested package
11334        PackageParser.Package pkg;
11335        synchronized (mPackages) {
11336            pkg = mPackages.get(packageName);
11337            if (pkg == null) {
11338                final PackageSetting ps = mSettings.mPackages.get(packageName);
11339                if (ps != null) {
11340                    pkg = ps.pkg;
11341                }
11342            }
11343        }
11344
11345        if (pkg == null) {
11346            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11347        }
11348
11349        // Always delete data directories for package, even if we found no other
11350        // record of app. This helps users recover from UID mismatches without
11351        // resorting to a full data wipe.
11352        int retCode = mInstaller.clearUserData(packageName, userId);
11353        if (retCode < 0) {
11354            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11355            return false;
11356        }
11357
11358        if (pkg == null) {
11359            return false;
11360        }
11361
11362        if (pkg != null && pkg.applicationInfo != null) {
11363            final int appId = pkg.applicationInfo.uid;
11364            removeKeystoreDataIfNeeded(userId, appId);
11365        }
11366
11367        // Create a native library symlink only if we have native libraries
11368        // and if the native libraries are 32 bit libraries. We do not provide
11369        // this symlink for 64 bit libraries.
11370        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11371                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11372            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11373            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11374                Slog.w(TAG, "Failed linking native library dir");
11375                return false;
11376            }
11377        }
11378
11379        return true;
11380    }
11381
11382    /**
11383     * Remove entries from the keystore daemon. Will only remove it if the
11384     * {@code appId} is valid.
11385     */
11386    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11387        if (appId < 0) {
11388            return;
11389        }
11390
11391        final KeyStore keyStore = KeyStore.getInstance();
11392        if (keyStore != null) {
11393            if (userId == UserHandle.USER_ALL) {
11394                for (final int individual : sUserManager.getUserIds()) {
11395                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11396                }
11397            } else {
11398                keyStore.clearUid(UserHandle.getUid(userId, appId));
11399            }
11400        } else {
11401            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11402        }
11403    }
11404
11405    @Override
11406    public void deleteApplicationCacheFiles(final String packageName,
11407            final IPackageDataObserver observer) {
11408        mContext.enforceCallingOrSelfPermission(
11409                android.Manifest.permission.DELETE_CACHE_FILES, null);
11410        // Queue up an async operation since the package deletion may take a little while.
11411        final int userId = UserHandle.getCallingUserId();
11412        mHandler.post(new Runnable() {
11413            public void run() {
11414                mHandler.removeCallbacks(this);
11415                final boolean succeded;
11416                synchronized (mInstallLock) {
11417                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11418                }
11419                clearExternalStorageDataSync(packageName, userId, false);
11420                if(observer != null) {
11421                    try {
11422                        observer.onRemoveCompleted(packageName, succeded);
11423                    } catch (RemoteException e) {
11424                        Log.i(TAG, "Observer no longer exists.");
11425                    }
11426                } //end if observer
11427            } //end run
11428        });
11429    }
11430
11431    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11432        if (packageName == null) {
11433            Slog.w(TAG, "Attempt to delete null packageName.");
11434            return false;
11435        }
11436        PackageParser.Package p;
11437        synchronized (mPackages) {
11438            p = mPackages.get(packageName);
11439        }
11440        if (p == null) {
11441            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11442            return false;
11443        }
11444        final ApplicationInfo applicationInfo = p.applicationInfo;
11445        if (applicationInfo == null) {
11446            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11447            return false;
11448        }
11449        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11450        if (retCode < 0) {
11451            Slog.w(TAG, "Couldn't remove cache files for package: "
11452                       + packageName + " u" + userId);
11453            return false;
11454        }
11455        return true;
11456    }
11457
11458    @Override
11459    public void getPackageSizeInfo(final String packageName, int userHandle,
11460            final IPackageStatsObserver observer) {
11461        mContext.enforceCallingOrSelfPermission(
11462                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11463        if (packageName == null) {
11464            throw new IllegalArgumentException("Attempt to get size of null packageName");
11465        }
11466
11467        PackageStats stats = new PackageStats(packageName, userHandle);
11468
11469        /*
11470         * Queue up an async operation since the package measurement may take a
11471         * little while.
11472         */
11473        Message msg = mHandler.obtainMessage(INIT_COPY);
11474        msg.obj = new MeasureParams(stats, observer);
11475        mHandler.sendMessage(msg);
11476    }
11477
11478    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11479            PackageStats pStats) {
11480        if (packageName == null) {
11481            Slog.w(TAG, "Attempt to get size of null packageName.");
11482            return false;
11483        }
11484        PackageParser.Package p;
11485        boolean dataOnly = false;
11486        String libDirRoot = null;
11487        String asecPath = null;
11488        PackageSetting ps = null;
11489        synchronized (mPackages) {
11490            p = mPackages.get(packageName);
11491            ps = mSettings.mPackages.get(packageName);
11492            if(p == null) {
11493                dataOnly = true;
11494                if((ps == null) || (ps.pkg == null)) {
11495                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11496                    return false;
11497                }
11498                p = ps.pkg;
11499            }
11500            if (ps != null) {
11501                libDirRoot = ps.legacyNativeLibraryPathString;
11502            }
11503            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11504                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11505                if (secureContainerId != null) {
11506                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11507                }
11508            }
11509        }
11510        String publicSrcDir = null;
11511        if(!dataOnly) {
11512            final ApplicationInfo applicationInfo = p.applicationInfo;
11513            if (applicationInfo == null) {
11514                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11515                return false;
11516            }
11517            if (isForwardLocked(p)) {
11518                publicSrcDir = applicationInfo.getBaseResourcePath();
11519            }
11520        }
11521        // TODO: extend to measure size of split APKs
11522        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11523        // not just the first level.
11524        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11525        // just the primary.
11526        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11527        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11528                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11529        if (res < 0) {
11530            return false;
11531        }
11532
11533        // Fix-up for forward-locked applications in ASEC containers.
11534        if (!isExternal(p)) {
11535            pStats.codeSize += pStats.externalCodeSize;
11536            pStats.externalCodeSize = 0L;
11537        }
11538
11539        return true;
11540    }
11541
11542
11543    @Override
11544    public void addPackageToPreferred(String packageName) {
11545        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11546    }
11547
11548    @Override
11549    public void removePackageFromPreferred(String packageName) {
11550        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11551    }
11552
11553    @Override
11554    public List<PackageInfo> getPreferredPackages(int flags) {
11555        return new ArrayList<PackageInfo>();
11556    }
11557
11558    private int getUidTargetSdkVersionLockedLPr(int uid) {
11559        Object obj = mSettings.getUserIdLPr(uid);
11560        if (obj instanceof SharedUserSetting) {
11561            final SharedUserSetting sus = (SharedUserSetting) obj;
11562            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11563            final Iterator<PackageSetting> it = sus.packages.iterator();
11564            while (it.hasNext()) {
11565                final PackageSetting ps = it.next();
11566                if (ps.pkg != null) {
11567                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11568                    if (v < vers) vers = v;
11569                }
11570            }
11571            return vers;
11572        } else if (obj instanceof PackageSetting) {
11573            final PackageSetting ps = (PackageSetting) obj;
11574            if (ps.pkg != null) {
11575                return ps.pkg.applicationInfo.targetSdkVersion;
11576            }
11577        }
11578        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11579    }
11580
11581    @Override
11582    public void addPreferredActivity(IntentFilter filter, int match,
11583            ComponentName[] set, ComponentName activity, int userId) {
11584        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11585                "Adding preferred");
11586    }
11587
11588    private void addPreferredActivityInternal(IntentFilter filter, int match,
11589            ComponentName[] set, ComponentName activity, boolean always, int userId,
11590            String opname) {
11591        // writer
11592        int callingUid = Binder.getCallingUid();
11593        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11594        if (filter.countActions() == 0) {
11595            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11596            return;
11597        }
11598        synchronized (mPackages) {
11599            if (mContext.checkCallingOrSelfPermission(
11600                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11601                    != PackageManager.PERMISSION_GRANTED) {
11602                if (getUidTargetSdkVersionLockedLPr(callingUid)
11603                        < Build.VERSION_CODES.FROYO) {
11604                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11605                            + callingUid);
11606                    return;
11607                }
11608                mContext.enforceCallingOrSelfPermission(
11609                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11610            }
11611
11612            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11613            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11614                    + userId + ":");
11615            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11616            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11617            scheduleWritePackageRestrictionsLocked(userId);
11618        }
11619    }
11620
11621    @Override
11622    public void replacePreferredActivity(IntentFilter filter, int match,
11623            ComponentName[] set, ComponentName activity, int userId) {
11624        if (filter.countActions() != 1) {
11625            throw new IllegalArgumentException(
11626                    "replacePreferredActivity expects filter to have only 1 action.");
11627        }
11628        if (filter.countDataAuthorities() != 0
11629                || filter.countDataPaths() != 0
11630                || filter.countDataSchemes() > 1
11631                || filter.countDataTypes() != 0) {
11632            throw new IllegalArgumentException(
11633                    "replacePreferredActivity expects filter to have no data authorities, " +
11634                    "paths, or types; and at most one scheme.");
11635        }
11636
11637        final int callingUid = Binder.getCallingUid();
11638        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11639        synchronized (mPackages) {
11640            if (mContext.checkCallingOrSelfPermission(
11641                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11642                    != PackageManager.PERMISSION_GRANTED) {
11643                if (getUidTargetSdkVersionLockedLPr(callingUid)
11644                        < Build.VERSION_CODES.FROYO) {
11645                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11646                            + Binder.getCallingUid());
11647                    return;
11648                }
11649                mContext.enforceCallingOrSelfPermission(
11650                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11651            }
11652
11653            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11654            if (pir != null) {
11655                // Get all of the existing entries that exactly match this filter.
11656                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11657                if (existing != null && existing.size() == 1) {
11658                    PreferredActivity cur = existing.get(0);
11659                    if (DEBUG_PREFERRED) {
11660                        Slog.i(TAG, "Checking replace of preferred:");
11661                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11662                        if (!cur.mPref.mAlways) {
11663                            Slog.i(TAG, "  -- CUR; not mAlways!");
11664                        } else {
11665                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11666                            Slog.i(TAG, "  -- CUR: mSet="
11667                                    + Arrays.toString(cur.mPref.mSetComponents));
11668                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11669                            Slog.i(TAG, "  -- NEW: mMatch="
11670                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11671                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11672                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11673                        }
11674                    }
11675                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11676                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11677                            && cur.mPref.sameSet(set)) {
11678                        // Setting the preferred activity to what it happens to be already
11679                        if (DEBUG_PREFERRED) {
11680                            Slog.i(TAG, "Replacing with same preferred activity "
11681                                    + cur.mPref.mShortComponent + " for user "
11682                                    + userId + ":");
11683                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11684                        }
11685                        return;
11686                    }
11687                }
11688
11689                if (existing != null) {
11690                    if (DEBUG_PREFERRED) {
11691                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11692                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11693                    }
11694                    for (int i = 0; i < existing.size(); i++) {
11695                        PreferredActivity pa = existing.get(i);
11696                        if (DEBUG_PREFERRED) {
11697                            Slog.i(TAG, "Removing existing preferred activity "
11698                                    + pa.mPref.mComponent + ":");
11699                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11700                        }
11701                        pir.removeFilter(pa);
11702                    }
11703                }
11704            }
11705            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11706                    "Replacing preferred");
11707        }
11708    }
11709
11710    @Override
11711    public void clearPackagePreferredActivities(String packageName) {
11712        final int uid = Binder.getCallingUid();
11713        // writer
11714        synchronized (mPackages) {
11715            PackageParser.Package pkg = mPackages.get(packageName);
11716            if (pkg == null || pkg.applicationInfo.uid != uid) {
11717                if (mContext.checkCallingOrSelfPermission(
11718                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11719                        != PackageManager.PERMISSION_GRANTED) {
11720                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11721                            < Build.VERSION_CODES.FROYO) {
11722                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11723                                + Binder.getCallingUid());
11724                        return;
11725                    }
11726                    mContext.enforceCallingOrSelfPermission(
11727                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11728                }
11729            }
11730
11731            int user = UserHandle.getCallingUserId();
11732            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11733                scheduleWritePackageRestrictionsLocked(user);
11734            }
11735        }
11736    }
11737
11738    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11739    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11740        ArrayList<PreferredActivity> removed = null;
11741        boolean changed = false;
11742        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11743            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11744            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11745            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11746                continue;
11747            }
11748            Iterator<PreferredActivity> it = pir.filterIterator();
11749            while (it.hasNext()) {
11750                PreferredActivity pa = it.next();
11751                // Mark entry for removal only if it matches the package name
11752                // and the entry is of type "always".
11753                if (packageName == null ||
11754                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11755                                && pa.mPref.mAlways)) {
11756                    if (removed == null) {
11757                        removed = new ArrayList<PreferredActivity>();
11758                    }
11759                    removed.add(pa);
11760                }
11761            }
11762            if (removed != null) {
11763                for (int j=0; j<removed.size(); j++) {
11764                    PreferredActivity pa = removed.get(j);
11765                    pir.removeFilter(pa);
11766                }
11767                changed = true;
11768            }
11769        }
11770        return changed;
11771    }
11772
11773    @Override
11774    public void resetPreferredActivities(int userId) {
11775        /* TODO: Actually use userId. Why is it being passed in? */
11776        mContext.enforceCallingOrSelfPermission(
11777                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11778        // writer
11779        synchronized (mPackages) {
11780            int user = UserHandle.getCallingUserId();
11781            clearPackagePreferredActivitiesLPw(null, user);
11782            mSettings.readDefaultPreferredAppsLPw(this, user);
11783            scheduleWritePackageRestrictionsLocked(user);
11784        }
11785    }
11786
11787    @Override
11788    public int getPreferredActivities(List<IntentFilter> outFilters,
11789            List<ComponentName> outActivities, String packageName) {
11790
11791        int num = 0;
11792        final int userId = UserHandle.getCallingUserId();
11793        // reader
11794        synchronized (mPackages) {
11795            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11796            if (pir != null) {
11797                final Iterator<PreferredActivity> it = pir.filterIterator();
11798                while (it.hasNext()) {
11799                    final PreferredActivity pa = it.next();
11800                    if (packageName == null
11801                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11802                                    && pa.mPref.mAlways)) {
11803                        if (outFilters != null) {
11804                            outFilters.add(new IntentFilter(pa));
11805                        }
11806                        if (outActivities != null) {
11807                            outActivities.add(pa.mPref.mComponent);
11808                        }
11809                    }
11810                }
11811            }
11812        }
11813
11814        return num;
11815    }
11816
11817    @Override
11818    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11819            int userId) {
11820        int callingUid = Binder.getCallingUid();
11821        if (callingUid != Process.SYSTEM_UID) {
11822            throw new SecurityException(
11823                    "addPersistentPreferredActivity can only be run by the system");
11824        }
11825        if (filter.countActions() == 0) {
11826            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11827            return;
11828        }
11829        synchronized (mPackages) {
11830            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11831                    " :");
11832            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11833            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11834                    new PersistentPreferredActivity(filter, activity));
11835            scheduleWritePackageRestrictionsLocked(userId);
11836        }
11837    }
11838
11839    @Override
11840    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11841        int callingUid = Binder.getCallingUid();
11842        if (callingUid != Process.SYSTEM_UID) {
11843            throw new SecurityException(
11844                    "clearPackagePersistentPreferredActivities can only be run by the system");
11845        }
11846        ArrayList<PersistentPreferredActivity> removed = null;
11847        boolean changed = false;
11848        synchronized (mPackages) {
11849            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11850                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11851                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11852                        .valueAt(i);
11853                if (userId != thisUserId) {
11854                    continue;
11855                }
11856                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11857                while (it.hasNext()) {
11858                    PersistentPreferredActivity ppa = it.next();
11859                    // Mark entry for removal only if it matches the package name.
11860                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11861                        if (removed == null) {
11862                            removed = new ArrayList<PersistentPreferredActivity>();
11863                        }
11864                        removed.add(ppa);
11865                    }
11866                }
11867                if (removed != null) {
11868                    for (int j=0; j<removed.size(); j++) {
11869                        PersistentPreferredActivity ppa = removed.get(j);
11870                        ppir.removeFilter(ppa);
11871                    }
11872                    changed = true;
11873                }
11874            }
11875
11876            if (changed) {
11877                scheduleWritePackageRestrictionsLocked(userId);
11878            }
11879        }
11880    }
11881
11882    @Override
11883    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11884            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11885        mContext.enforceCallingOrSelfPermission(
11886                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11887        int callingUid = Binder.getCallingUid();
11888        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11889        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11890        if (intentFilter.countActions() == 0) {
11891            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11892            return;
11893        }
11894        synchronized (mPackages) {
11895            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11896                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11897            CrossProfileIntentResolver resolver =
11898                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11899            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11900            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11901            if (existing != null) {
11902                int size = existing.size();
11903                for (int i = 0; i < size; i++) {
11904                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11905                        return;
11906                    }
11907                }
11908            }
11909            resolver.addFilter(newFilter);
11910            scheduleWritePackageRestrictionsLocked(sourceUserId);
11911        }
11912    }
11913
11914    @Override
11915    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11916            int ownerUserId) {
11917        mContext.enforceCallingOrSelfPermission(
11918                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11919        int callingUid = Binder.getCallingUid();
11920        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11921        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11922        int callingUserId = UserHandle.getUserId(callingUid);
11923        synchronized (mPackages) {
11924            CrossProfileIntentResolver resolver =
11925                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11926            ArraySet<CrossProfileIntentFilter> set =
11927                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11928            for (CrossProfileIntentFilter filter : set) {
11929                if (filter.getOwnerPackage().equals(ownerPackage)
11930                        && filter.getOwnerUserId() == callingUserId) {
11931                    resolver.removeFilter(filter);
11932                }
11933            }
11934            scheduleWritePackageRestrictionsLocked(sourceUserId);
11935        }
11936    }
11937
11938    // Enforcing that callingUid is owning pkg on userId
11939    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11940        // The system owns everything.
11941        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11942            return;
11943        }
11944        int callingUserId = UserHandle.getUserId(callingUid);
11945        if (callingUserId != userId) {
11946            throw new SecurityException("calling uid " + callingUid
11947                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11948                    + callingUserId);
11949        }
11950        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11951        if (pi == null) {
11952            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11953                    + callingUserId);
11954        }
11955        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11956            throw new SecurityException("Calling uid " + callingUid
11957                    + " does not own package " + pkg);
11958        }
11959    }
11960
11961    @Override
11962    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11963        Intent intent = new Intent(Intent.ACTION_MAIN);
11964        intent.addCategory(Intent.CATEGORY_HOME);
11965
11966        final int callingUserId = UserHandle.getCallingUserId();
11967        List<ResolveInfo> list = queryIntentActivities(intent, null,
11968                PackageManager.GET_META_DATA, callingUserId);
11969        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11970                true, false, false, callingUserId);
11971
11972        allHomeCandidates.clear();
11973        if (list != null) {
11974            for (ResolveInfo ri : list) {
11975                allHomeCandidates.add(ri);
11976            }
11977        }
11978        return (preferred == null || preferred.activityInfo == null)
11979                ? null
11980                : new ComponentName(preferred.activityInfo.packageName,
11981                        preferred.activityInfo.name);
11982    }
11983
11984    @Override
11985    public void setApplicationEnabledSetting(String appPackageName,
11986            int newState, int flags, int userId, String callingPackage) {
11987        if (!sUserManager.exists(userId)) return;
11988        if (callingPackage == null) {
11989            callingPackage = Integer.toString(Binder.getCallingUid());
11990        }
11991        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11992    }
11993
11994    @Override
11995    public void setComponentEnabledSetting(ComponentName componentName,
11996            int newState, int flags, int userId) {
11997        if (!sUserManager.exists(userId)) return;
11998        setEnabledSetting(componentName.getPackageName(),
11999                componentName.getClassName(), newState, flags, userId, null);
12000    }
12001
12002    private void setEnabledSetting(final String packageName, String className, int newState,
12003            final int flags, int userId, String callingPackage) {
12004        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
12005              || newState == COMPONENT_ENABLED_STATE_ENABLED
12006              || newState == COMPONENT_ENABLED_STATE_DISABLED
12007              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
12008              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
12009            throw new IllegalArgumentException("Invalid new component state: "
12010                    + newState);
12011        }
12012        PackageSetting pkgSetting;
12013        final int uid = Binder.getCallingUid();
12014        final int permission = mContext.checkCallingOrSelfPermission(
12015                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12016        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
12017        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12018        boolean sendNow = false;
12019        boolean isApp = (className == null);
12020        String componentName = isApp ? packageName : className;
12021        int packageUid = -1;
12022        ArrayList<String> components;
12023
12024        // writer
12025        synchronized (mPackages) {
12026            pkgSetting = mSettings.mPackages.get(packageName);
12027            if (pkgSetting == null) {
12028                if (className == null) {
12029                    throw new IllegalArgumentException(
12030                            "Unknown package: " + packageName);
12031                }
12032                throw new IllegalArgumentException(
12033                        "Unknown component: " + packageName
12034                        + "/" + className);
12035            }
12036            // Allow root and verify that userId is not being specified by a different user
12037            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
12038                throw new SecurityException(
12039                        "Permission Denial: attempt to change component state from pid="
12040                        + Binder.getCallingPid()
12041                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
12042            }
12043            if (className == null) {
12044                // We're dealing with an application/package level state change
12045                if (pkgSetting.getEnabled(userId) == newState) {
12046                    // Nothing to do
12047                    return;
12048                }
12049                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
12050                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
12051                    // Don't care about who enables an app.
12052                    callingPackage = null;
12053                }
12054                pkgSetting.setEnabled(newState, userId, callingPackage);
12055                // pkgSetting.pkg.mSetEnabled = newState;
12056            } else {
12057                // We're dealing with a component level state change
12058                // First, verify that this is a valid class name.
12059                PackageParser.Package pkg = pkgSetting.pkg;
12060                if (pkg == null || !pkg.hasComponentClassName(className)) {
12061                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
12062                        throw new IllegalArgumentException("Component class " + className
12063                                + " does not exist in " + packageName);
12064                    } else {
12065                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
12066                                + className + " does not exist in " + packageName);
12067                    }
12068                }
12069                switch (newState) {
12070                case COMPONENT_ENABLED_STATE_ENABLED:
12071                    if (!pkgSetting.enableComponentLPw(className, userId)) {
12072                        return;
12073                    }
12074                    break;
12075                case COMPONENT_ENABLED_STATE_DISABLED:
12076                    if (!pkgSetting.disableComponentLPw(className, userId)) {
12077                        return;
12078                    }
12079                    break;
12080                case COMPONENT_ENABLED_STATE_DEFAULT:
12081                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
12082                        return;
12083                    }
12084                    break;
12085                default:
12086                    Slog.e(TAG, "Invalid new component state: " + newState);
12087                    return;
12088                }
12089            }
12090            mSettings.writePackageRestrictionsLPr(userId);
12091            components = mPendingBroadcasts.get(userId, packageName);
12092            final boolean newPackage = components == null;
12093            if (newPackage) {
12094                components = new ArrayList<String>();
12095            }
12096            if (!components.contains(componentName)) {
12097                components.add(componentName);
12098            }
12099            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12100                sendNow = true;
12101                // Purge entry from pending broadcast list if another one exists already
12102                // since we are sending one right away.
12103                mPendingBroadcasts.remove(userId, packageName);
12104            } else {
12105                if (newPackage) {
12106                    mPendingBroadcasts.put(userId, packageName, components);
12107                }
12108                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12109                    // Schedule a message
12110                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12111                }
12112            }
12113        }
12114
12115        long callingId = Binder.clearCallingIdentity();
12116        try {
12117            if (sendNow) {
12118                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12119                sendPackageChangedBroadcast(packageName,
12120                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12121            }
12122        } finally {
12123            Binder.restoreCallingIdentity(callingId);
12124        }
12125    }
12126
12127    private void sendPackageChangedBroadcast(String packageName,
12128            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12129        if (DEBUG_INSTALL)
12130            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12131                    + componentNames);
12132        Bundle extras = new Bundle(4);
12133        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12134        String nameList[] = new String[componentNames.size()];
12135        componentNames.toArray(nameList);
12136        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12137        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12138        extras.putInt(Intent.EXTRA_UID, packageUid);
12139        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12140                new int[] {UserHandle.getUserId(packageUid)});
12141    }
12142
12143    @Override
12144    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12145        if (!sUserManager.exists(userId)) return;
12146        final int uid = Binder.getCallingUid();
12147        final int permission = mContext.checkCallingOrSelfPermission(
12148                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12149        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12150        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12151        // writer
12152        synchronized (mPackages) {
12153            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12154                    uid, userId)) {
12155                scheduleWritePackageRestrictionsLocked(userId);
12156            }
12157        }
12158    }
12159
12160    @Override
12161    public String getInstallerPackageName(String packageName) {
12162        // reader
12163        synchronized (mPackages) {
12164            return mSettings.getInstallerPackageNameLPr(packageName);
12165        }
12166    }
12167
12168    @Override
12169    public int getApplicationEnabledSetting(String packageName, int userId) {
12170        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12171        int uid = Binder.getCallingUid();
12172        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12173        // reader
12174        synchronized (mPackages) {
12175            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12176        }
12177    }
12178
12179    @Override
12180    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12181        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12182        int uid = Binder.getCallingUid();
12183        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12184        // reader
12185        synchronized (mPackages) {
12186            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12187        }
12188    }
12189
12190    @Override
12191    public void enterSafeMode() {
12192        enforceSystemOrRoot("Only the system can request entering safe mode");
12193
12194        if (!mSystemReady) {
12195            mSafeMode = true;
12196        }
12197    }
12198
12199    @Override
12200    public void systemReady() {
12201        mSystemReady = true;
12202
12203        // Read the compatibilty setting when the system is ready.
12204        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12205                mContext.getContentResolver(),
12206                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12207        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12208        if (DEBUG_SETTINGS) {
12209            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12210        }
12211
12212        synchronized (mPackages) {
12213            // Verify that all of the preferred activity components actually
12214            // exist.  It is possible for applications to be updated and at
12215            // that point remove a previously declared activity component that
12216            // had been set as a preferred activity.  We try to clean this up
12217            // the next time we encounter that preferred activity, but it is
12218            // possible for the user flow to never be able to return to that
12219            // situation so here we do a sanity check to make sure we haven't
12220            // left any junk around.
12221            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12222            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12223                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12224                removed.clear();
12225                for (PreferredActivity pa : pir.filterSet()) {
12226                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12227                        removed.add(pa);
12228                    }
12229                }
12230                if (removed.size() > 0) {
12231                    for (int r=0; r<removed.size(); r++) {
12232                        PreferredActivity pa = removed.get(r);
12233                        Slog.w(TAG, "Removing dangling preferred activity: "
12234                                + pa.mPref.mComponent);
12235                        pir.removeFilter(pa);
12236                    }
12237                    mSettings.writePackageRestrictionsLPr(
12238                            mSettings.mPreferredActivities.keyAt(i));
12239                }
12240            }
12241        }
12242        sUserManager.systemReady();
12243
12244        // Kick off any messages waiting for system ready
12245        if (mPostSystemReadyMessages != null) {
12246            for (Message msg : mPostSystemReadyMessages) {
12247                msg.sendToTarget();
12248            }
12249            mPostSystemReadyMessages = null;
12250        }
12251    }
12252
12253    @Override
12254    public boolean isSafeMode() {
12255        return mSafeMode;
12256    }
12257
12258    @Override
12259    public boolean hasSystemUidErrors() {
12260        return mHasSystemUidErrors;
12261    }
12262
12263    static String arrayToString(int[] array) {
12264        StringBuffer buf = new StringBuffer(128);
12265        buf.append('[');
12266        if (array != null) {
12267            for (int i=0; i<array.length; i++) {
12268                if (i > 0) buf.append(", ");
12269                buf.append(array[i]);
12270            }
12271        }
12272        buf.append(']');
12273        return buf.toString();
12274    }
12275
12276    static class DumpState {
12277        public static final int DUMP_LIBS = 1 << 0;
12278        public static final int DUMP_FEATURES = 1 << 1;
12279        public static final int DUMP_RESOLVERS = 1 << 2;
12280        public static final int DUMP_PERMISSIONS = 1 << 3;
12281        public static final int DUMP_PACKAGES = 1 << 4;
12282        public static final int DUMP_SHARED_USERS = 1 << 5;
12283        public static final int DUMP_MESSAGES = 1 << 6;
12284        public static final int DUMP_PROVIDERS = 1 << 7;
12285        public static final int DUMP_VERIFIERS = 1 << 8;
12286        public static final int DUMP_PREFERRED = 1 << 9;
12287        public static final int DUMP_PREFERRED_XML = 1 << 10;
12288        public static final int DUMP_KEYSETS = 1 << 11;
12289        public static final int DUMP_VERSION = 1 << 12;
12290        public static final int DUMP_INSTALLS = 1 << 13;
12291
12292        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12293
12294        private int mTypes;
12295
12296        private int mOptions;
12297
12298        private boolean mTitlePrinted;
12299
12300        private SharedUserSetting mSharedUser;
12301
12302        public boolean isDumping(int type) {
12303            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12304                return true;
12305            }
12306
12307            return (mTypes & type) != 0;
12308        }
12309
12310        public void setDump(int type) {
12311            mTypes |= type;
12312        }
12313
12314        public boolean isOptionEnabled(int option) {
12315            return (mOptions & option) != 0;
12316        }
12317
12318        public void setOptionEnabled(int option) {
12319            mOptions |= option;
12320        }
12321
12322        public boolean onTitlePrinted() {
12323            final boolean printed = mTitlePrinted;
12324            mTitlePrinted = true;
12325            return printed;
12326        }
12327
12328        public boolean getTitlePrinted() {
12329            return mTitlePrinted;
12330        }
12331
12332        public void setTitlePrinted(boolean enabled) {
12333            mTitlePrinted = enabled;
12334        }
12335
12336        public SharedUserSetting getSharedUser() {
12337            return mSharedUser;
12338        }
12339
12340        public void setSharedUser(SharedUserSetting user) {
12341            mSharedUser = user;
12342        }
12343    }
12344
12345    @Override
12346    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12347        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12348                != PackageManager.PERMISSION_GRANTED) {
12349            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12350                    + Binder.getCallingPid()
12351                    + ", uid=" + Binder.getCallingUid()
12352                    + " without permission "
12353                    + android.Manifest.permission.DUMP);
12354            return;
12355        }
12356
12357        DumpState dumpState = new DumpState();
12358        boolean fullPreferred = false;
12359        boolean checkin = false;
12360
12361        String packageName = null;
12362
12363        int opti = 0;
12364        while (opti < args.length) {
12365            String opt = args[opti];
12366            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12367                break;
12368            }
12369            opti++;
12370
12371            if ("-a".equals(opt)) {
12372                // Right now we only know how to print all.
12373            } else if ("-h".equals(opt)) {
12374                pw.println("Package manager dump options:");
12375                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12376                pw.println("    --checkin: dump for a checkin");
12377                pw.println("    -f: print details of intent filters");
12378                pw.println("    -h: print this help");
12379                pw.println("  cmd may be one of:");
12380                pw.println("    l[ibraries]: list known shared libraries");
12381                pw.println("    f[ibraries]: list device features");
12382                pw.println("    k[eysets]: print known keysets");
12383                pw.println("    r[esolvers]: dump intent resolvers");
12384                pw.println("    perm[issions]: dump permissions");
12385                pw.println("    pref[erred]: print preferred package settings");
12386                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12387                pw.println("    prov[iders]: dump content providers");
12388                pw.println("    p[ackages]: dump installed packages");
12389                pw.println("    s[hared-users]: dump shared user IDs");
12390                pw.println("    m[essages]: print collected runtime messages");
12391                pw.println("    v[erifiers]: print package verifier info");
12392                pw.println("    version: print database version info");
12393                pw.println("    write: write current settings now");
12394                pw.println("    <package.name>: info about given package");
12395                pw.println("    installs: details about install sessions");
12396                return;
12397            } else if ("--checkin".equals(opt)) {
12398                checkin = true;
12399            } else if ("-f".equals(opt)) {
12400                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12401            } else {
12402                pw.println("Unknown argument: " + opt + "; use -h for help");
12403            }
12404        }
12405
12406        // Is the caller requesting to dump a particular piece of data?
12407        if (opti < args.length) {
12408            String cmd = args[opti];
12409            opti++;
12410            // Is this a package name?
12411            if ("android".equals(cmd) || cmd.contains(".")) {
12412                packageName = cmd;
12413                // When dumping a single package, we always dump all of its
12414                // filter information since the amount of data will be reasonable.
12415                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12416            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12417                dumpState.setDump(DumpState.DUMP_LIBS);
12418            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12419                dumpState.setDump(DumpState.DUMP_FEATURES);
12420            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12421                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12422            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12423                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12424            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12425                dumpState.setDump(DumpState.DUMP_PREFERRED);
12426            } else if ("preferred-xml".equals(cmd)) {
12427                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12428                if (opti < args.length && "--full".equals(args[opti])) {
12429                    fullPreferred = true;
12430                    opti++;
12431                }
12432            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12433                dumpState.setDump(DumpState.DUMP_PACKAGES);
12434            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12435                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12436            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12437                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12438            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12439                dumpState.setDump(DumpState.DUMP_MESSAGES);
12440            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12441                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12442            } else if ("version".equals(cmd)) {
12443                dumpState.setDump(DumpState.DUMP_VERSION);
12444            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12445                dumpState.setDump(DumpState.DUMP_KEYSETS);
12446            } else if ("installs".equals(cmd)) {
12447                dumpState.setDump(DumpState.DUMP_INSTALLS);
12448            } else if ("write".equals(cmd)) {
12449                synchronized (mPackages) {
12450                    mSettings.writeLPr();
12451                    pw.println("Settings written.");
12452                    return;
12453                }
12454            }
12455        }
12456
12457        if (checkin) {
12458            pw.println("vers,1");
12459        }
12460
12461        // reader
12462        synchronized (mPackages) {
12463            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12464                if (!checkin) {
12465                    if (dumpState.onTitlePrinted())
12466                        pw.println();
12467                    pw.println("Database versions:");
12468                    pw.print("  SDK Version:");
12469                    pw.print(" internal=");
12470                    pw.print(mSettings.mInternalSdkPlatform);
12471                    pw.print(" external=");
12472                    pw.println(mSettings.mExternalSdkPlatform);
12473                    pw.print("  DB Version:");
12474                    pw.print(" internal=");
12475                    pw.print(mSettings.mInternalDatabaseVersion);
12476                    pw.print(" external=");
12477                    pw.println(mSettings.mExternalDatabaseVersion);
12478                }
12479            }
12480
12481            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12482                if (!checkin) {
12483                    if (dumpState.onTitlePrinted())
12484                        pw.println();
12485                    pw.println("Verifiers:");
12486                    pw.print("  Required: ");
12487                    pw.print(mRequiredVerifierPackage);
12488                    pw.print(" (uid=");
12489                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12490                    pw.println(")");
12491                } else if (mRequiredVerifierPackage != null) {
12492                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12493                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12494                }
12495            }
12496
12497            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12498                boolean printedHeader = false;
12499                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12500                while (it.hasNext()) {
12501                    String name = it.next();
12502                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12503                    if (!checkin) {
12504                        if (!printedHeader) {
12505                            if (dumpState.onTitlePrinted())
12506                                pw.println();
12507                            pw.println("Libraries:");
12508                            printedHeader = true;
12509                        }
12510                        pw.print("  ");
12511                    } else {
12512                        pw.print("lib,");
12513                    }
12514                    pw.print(name);
12515                    if (!checkin) {
12516                        pw.print(" -> ");
12517                    }
12518                    if (ent.path != null) {
12519                        if (!checkin) {
12520                            pw.print("(jar) ");
12521                            pw.print(ent.path);
12522                        } else {
12523                            pw.print(",jar,");
12524                            pw.print(ent.path);
12525                        }
12526                    } else {
12527                        if (!checkin) {
12528                            pw.print("(apk) ");
12529                            pw.print(ent.apk);
12530                        } else {
12531                            pw.print(",apk,");
12532                            pw.print(ent.apk);
12533                        }
12534                    }
12535                    pw.println();
12536                }
12537            }
12538
12539            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12540                if (dumpState.onTitlePrinted())
12541                    pw.println();
12542                if (!checkin) {
12543                    pw.println("Features:");
12544                }
12545                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12546                while (it.hasNext()) {
12547                    String name = it.next();
12548                    if (!checkin) {
12549                        pw.print("  ");
12550                    } else {
12551                        pw.print("feat,");
12552                    }
12553                    pw.println(name);
12554                }
12555            }
12556
12557            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12558                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12559                        : "Activity Resolver Table:", "  ", packageName,
12560                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12561                    dumpState.setTitlePrinted(true);
12562                }
12563                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12564                        : "Receiver Resolver Table:", "  ", packageName,
12565                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12566                    dumpState.setTitlePrinted(true);
12567                }
12568                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12569                        : "Service Resolver Table:", "  ", packageName,
12570                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12571                    dumpState.setTitlePrinted(true);
12572                }
12573                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12574                        : "Provider Resolver Table:", "  ", packageName,
12575                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12576                    dumpState.setTitlePrinted(true);
12577                }
12578            }
12579
12580            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12581                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12582                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12583                    int user = mSettings.mPreferredActivities.keyAt(i);
12584                    if (pir.dump(pw,
12585                            dumpState.getTitlePrinted()
12586                                ? "\nPreferred Activities User " + user + ":"
12587                                : "Preferred Activities User " + user + ":", "  ",
12588                            packageName, true)) {
12589                        dumpState.setTitlePrinted(true);
12590                    }
12591                }
12592            }
12593
12594            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12595                pw.flush();
12596                FileOutputStream fout = new FileOutputStream(fd);
12597                BufferedOutputStream str = new BufferedOutputStream(fout);
12598                XmlSerializer serializer = new FastXmlSerializer();
12599                try {
12600                    serializer.setOutput(str, "utf-8");
12601                    serializer.startDocument(null, true);
12602                    serializer.setFeature(
12603                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12604                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12605                    serializer.endDocument();
12606                    serializer.flush();
12607                } catch (IllegalArgumentException e) {
12608                    pw.println("Failed writing: " + e);
12609                } catch (IllegalStateException e) {
12610                    pw.println("Failed writing: " + e);
12611                } catch (IOException e) {
12612                    pw.println("Failed writing: " + e);
12613                }
12614            }
12615
12616            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12617                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12618                if (packageName == null) {
12619                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12620                        if (iperm == 0) {
12621                            if (dumpState.onTitlePrinted())
12622                                pw.println();
12623                            pw.println("AppOp Permissions:");
12624                        }
12625                        pw.print("  AppOp Permission ");
12626                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12627                        pw.println(":");
12628                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12629                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12630                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12631                        }
12632                    }
12633                }
12634            }
12635
12636            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12637                boolean printedSomething = false;
12638                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12639                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12640                        continue;
12641                    }
12642                    if (!printedSomething) {
12643                        if (dumpState.onTitlePrinted())
12644                            pw.println();
12645                        pw.println("Registered ContentProviders:");
12646                        printedSomething = true;
12647                    }
12648                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12649                    pw.print("    "); pw.println(p.toString());
12650                }
12651                printedSomething = false;
12652                for (Map.Entry<String, PackageParser.Provider> entry :
12653                        mProvidersByAuthority.entrySet()) {
12654                    PackageParser.Provider p = entry.getValue();
12655                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12656                        continue;
12657                    }
12658                    if (!printedSomething) {
12659                        if (dumpState.onTitlePrinted())
12660                            pw.println();
12661                        pw.println("ContentProvider Authorities:");
12662                        printedSomething = true;
12663                    }
12664                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12665                    pw.print("    "); pw.println(p.toString());
12666                    if (p.info != null && p.info.applicationInfo != null) {
12667                        final String appInfo = p.info.applicationInfo.toString();
12668                        pw.print("      applicationInfo="); pw.println(appInfo);
12669                    }
12670                }
12671            }
12672
12673            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12674                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12675            }
12676
12677            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12678                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12679            }
12680
12681            if (!checkin && dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12682                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState);
12683            }
12684
12685            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12686                // XXX should handle packageName != null by dumping only install data that
12687                // the given package is involved with.
12688                if (dumpState.onTitlePrinted()) pw.println();
12689                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12690            }
12691
12692            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12693                if (dumpState.onTitlePrinted()) pw.println();
12694                mSettings.dumpReadMessagesLPr(pw, dumpState);
12695
12696                pw.println();
12697                pw.println("Package warning messages:");
12698                final File fname = getSettingsProblemFile();
12699                FileInputStream in = null;
12700                try {
12701                    in = new FileInputStream(fname);
12702                    final int avail = in.available();
12703                    final byte[] data = new byte[avail];
12704                    in.read(data);
12705                    pw.print(new String(data));
12706                } catch (FileNotFoundException e) {
12707                } catch (IOException e) {
12708                } finally {
12709                    if (in != null) {
12710                        try {
12711                            in.close();
12712                        } catch (IOException e) {
12713                        }
12714                    }
12715                }
12716            }
12717
12718            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12719                BufferedReader in = null;
12720                String line = null;
12721                try {
12722                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12723                    while ((line = in.readLine()) != null) {
12724                        pw.print("msg,");
12725                        pw.println(line);
12726                    }
12727                } catch (IOException ignored) {
12728                } finally {
12729                    IoUtils.closeQuietly(in);
12730                }
12731            }
12732        }
12733    }
12734
12735    // ------- apps on sdcard specific code -------
12736    static final boolean DEBUG_SD_INSTALL = false;
12737
12738    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12739
12740    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12741
12742    private boolean mMediaMounted = false;
12743
12744    static String getEncryptKey() {
12745        try {
12746            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12747                    SD_ENCRYPTION_KEYSTORE_NAME);
12748            if (sdEncKey == null) {
12749                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12750                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12751                if (sdEncKey == null) {
12752                    Slog.e(TAG, "Failed to create encryption keys");
12753                    return null;
12754                }
12755            }
12756            return sdEncKey;
12757        } catch (NoSuchAlgorithmException nsae) {
12758            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12759            return null;
12760        } catch (IOException ioe) {
12761            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12762            return null;
12763        }
12764    }
12765
12766    /*
12767     * Update media status on PackageManager.
12768     */
12769    @Override
12770    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12771        int callingUid = Binder.getCallingUid();
12772        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12773            throw new SecurityException("Media status can only be updated by the system");
12774        }
12775        // reader; this apparently protects mMediaMounted, but should probably
12776        // be a different lock in that case.
12777        synchronized (mPackages) {
12778            Log.i(TAG, "Updating external media status from "
12779                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12780                    + (mediaStatus ? "mounted" : "unmounted"));
12781            if (DEBUG_SD_INSTALL)
12782                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12783                        + ", mMediaMounted=" + mMediaMounted);
12784            if (mediaStatus == mMediaMounted) {
12785                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12786                        : 0, -1);
12787                mHandler.sendMessage(msg);
12788                return;
12789            }
12790            mMediaMounted = mediaStatus;
12791        }
12792        // Queue up an async operation since the package installation may take a
12793        // little while.
12794        mHandler.post(new Runnable() {
12795            public void run() {
12796                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12797            }
12798        });
12799    }
12800
12801    /**
12802     * Called by MountService when the initial ASECs to scan are available.
12803     * Should block until all the ASEC containers are finished being scanned.
12804     */
12805    public void scanAvailableAsecs() {
12806        updateExternalMediaStatusInner(true, false, false);
12807        if (mShouldRestoreconData) {
12808            SELinuxMMAC.setRestoreconDone();
12809            mShouldRestoreconData = false;
12810        }
12811    }
12812
12813    /*
12814     * Collect information of applications on external media, map them against
12815     * existing containers and update information based on current mount status.
12816     * Please note that we always have to report status if reportStatus has been
12817     * set to true especially when unloading packages.
12818     */
12819    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12820            boolean externalStorage) {
12821        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12822        int[] uidArr = EmptyArray.INT;
12823
12824        final String[] list = PackageHelper.getSecureContainerList();
12825        if (ArrayUtils.isEmpty(list)) {
12826            Log.i(TAG, "No secure containers found");
12827        } else {
12828            // Process list of secure containers and categorize them
12829            // as active or stale based on their package internal state.
12830
12831            // reader
12832            synchronized (mPackages) {
12833                for (String cid : list) {
12834                    // Leave stages untouched for now; installer service owns them
12835                    if (PackageInstallerService.isStageName(cid)) continue;
12836
12837                    if (DEBUG_SD_INSTALL)
12838                        Log.i(TAG, "Processing container " + cid);
12839                    String pkgName = getAsecPackageName(cid);
12840                    if (pkgName == null) {
12841                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12842                        continue;
12843                    }
12844                    if (DEBUG_SD_INSTALL)
12845                        Log.i(TAG, "Looking for pkg : " + pkgName);
12846
12847                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12848                    if (ps == null) {
12849                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12850                        continue;
12851                    }
12852
12853                    /*
12854                     * Skip packages that are not external if we're unmounting
12855                     * external storage.
12856                     */
12857                    if (externalStorage && !isMounted && !isExternal(ps)) {
12858                        continue;
12859                    }
12860
12861                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12862                            getAppDexInstructionSets(ps), isForwardLocked(ps));
12863                    // The package status is changed only if the code path
12864                    // matches between settings and the container id.
12865                    if (ps.codePathString != null
12866                            && ps.codePathString.startsWith(args.getCodePath())) {
12867                        if (DEBUG_SD_INSTALL) {
12868                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12869                                    + " at code path: " + ps.codePathString);
12870                        }
12871
12872                        // We do have a valid package installed on sdcard
12873                        processCids.put(args, ps.codePathString);
12874                        final int uid = ps.appId;
12875                        if (uid != -1) {
12876                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12877                        }
12878                    } else {
12879                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12880                                + ps.codePathString);
12881                    }
12882                }
12883            }
12884
12885            Arrays.sort(uidArr);
12886        }
12887
12888        // Process packages with valid entries.
12889        if (isMounted) {
12890            if (DEBUG_SD_INSTALL)
12891                Log.i(TAG, "Loading packages");
12892            loadMediaPackages(processCids, uidArr);
12893            startCleaningPackages();
12894            mInstallerService.onSecureContainersAvailable();
12895        } else {
12896            if (DEBUG_SD_INSTALL)
12897                Log.i(TAG, "Unloading packages");
12898            unloadMediaPackages(processCids, uidArr, reportStatus);
12899        }
12900    }
12901
12902    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12903            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12904        int size = pkgList.size();
12905        if (size > 0) {
12906            // Send broadcasts here
12907            Bundle extras = new Bundle();
12908            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12909                    .toArray(new String[size]));
12910            if (uidArr != null) {
12911                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12912            }
12913            if (replacing) {
12914                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12915            }
12916            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12917                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12918            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12919        }
12920    }
12921
12922   /*
12923     * Look at potentially valid container ids from processCids If package
12924     * information doesn't match the one on record or package scanning fails,
12925     * the cid is added to list of removeCids. We currently don't delete stale
12926     * containers.
12927     */
12928    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12929        ArrayList<String> pkgList = new ArrayList<String>();
12930        Set<AsecInstallArgs> keys = processCids.keySet();
12931
12932        for (AsecInstallArgs args : keys) {
12933            String codePath = processCids.get(args);
12934            if (DEBUG_SD_INSTALL)
12935                Log.i(TAG, "Loading container : " + args.cid);
12936            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12937            try {
12938                // Make sure there are no container errors first.
12939                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12940                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12941                            + " when installing from sdcard");
12942                    continue;
12943                }
12944                // Check code path here.
12945                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12946                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12947                            + " does not match one in settings " + codePath);
12948                    continue;
12949                }
12950                // Parse package
12951                int parseFlags = mDefParseFlags;
12952                if (args.isExternal()) {
12953                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12954                }
12955                if (args.isFwdLocked()) {
12956                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12957                }
12958
12959                synchronized (mInstallLock) {
12960                    PackageParser.Package pkg = null;
12961                    try {
12962                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12963                    } catch (PackageManagerException e) {
12964                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12965                    }
12966                    // Scan the package
12967                    if (pkg != null) {
12968                        /*
12969                         * TODO why is the lock being held? doPostInstall is
12970                         * called in other places without the lock. This needs
12971                         * to be straightened out.
12972                         */
12973                        // writer
12974                        synchronized (mPackages) {
12975                            retCode = PackageManager.INSTALL_SUCCEEDED;
12976                            pkgList.add(pkg.packageName);
12977                            // Post process args
12978                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12979                                    pkg.applicationInfo.uid);
12980                        }
12981                    } else {
12982                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12983                    }
12984                }
12985
12986            } finally {
12987                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12988                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12989                }
12990            }
12991        }
12992        // writer
12993        synchronized (mPackages) {
12994            // If the platform SDK has changed since the last time we booted,
12995            // we need to re-grant app permission to catch any new ones that
12996            // appear. This is really a hack, and means that apps can in some
12997            // cases get permissions that the user didn't initially explicitly
12998            // allow... it would be nice to have some better way to handle
12999            // this situation.
13000            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
13001            if (regrantPermissions)
13002                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
13003                        + mSdkVersion + "; regranting permissions for external storage");
13004            mSettings.mExternalSdkPlatform = mSdkVersion;
13005
13006            // Make sure group IDs have been assigned, and any permission
13007            // changes in other apps are accounted for
13008            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
13009                    | (regrantPermissions
13010                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
13011                            : 0));
13012
13013            mSettings.updateExternalDatabaseVersion();
13014
13015            // can downgrade to reader
13016            // Persist settings
13017            mSettings.writeLPr();
13018        }
13019        // Send a broadcast to let everyone know we are done processing
13020        if (pkgList.size() > 0) {
13021            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
13022        }
13023    }
13024
13025   /*
13026     * Utility method to unload a list of specified containers
13027     */
13028    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
13029        // Just unmount all valid containers.
13030        for (AsecInstallArgs arg : cidArgs) {
13031            synchronized (mInstallLock) {
13032                arg.doPostDeleteLI(false);
13033           }
13034       }
13035   }
13036
13037    /*
13038     * Unload packages mounted on external media. This involves deleting package
13039     * data from internal structures, sending broadcasts about diabled packages,
13040     * gc'ing to free up references, unmounting all secure containers
13041     * corresponding to packages on external media, and posting a
13042     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
13043     * that we always have to post this message if status has been requested no
13044     * matter what.
13045     */
13046    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
13047            final boolean reportStatus) {
13048        if (DEBUG_SD_INSTALL)
13049            Log.i(TAG, "unloading media packages");
13050        ArrayList<String> pkgList = new ArrayList<String>();
13051        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
13052        final Set<AsecInstallArgs> keys = processCids.keySet();
13053        for (AsecInstallArgs args : keys) {
13054            String pkgName = args.getPackageName();
13055            if (DEBUG_SD_INSTALL)
13056                Log.i(TAG, "Trying to unload pkg : " + pkgName);
13057            // Delete package internally
13058            PackageRemovedInfo outInfo = new PackageRemovedInfo();
13059            synchronized (mInstallLock) {
13060                boolean res = deletePackageLI(pkgName, null, false, null, null,
13061                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
13062                if (res) {
13063                    pkgList.add(pkgName);
13064                } else {
13065                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
13066                    failedList.add(args);
13067                }
13068            }
13069        }
13070
13071        // reader
13072        synchronized (mPackages) {
13073            // We didn't update the settings after removing each package;
13074            // write them now for all packages.
13075            mSettings.writeLPr();
13076        }
13077
13078        // We have to absolutely send UPDATED_MEDIA_STATUS only
13079        // after confirming that all the receivers processed the ordered
13080        // broadcast when packages get disabled, force a gc to clean things up.
13081        // and unload all the containers.
13082        if (pkgList.size() > 0) {
13083            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13084                    new IIntentReceiver.Stub() {
13085                public void performReceive(Intent intent, int resultCode, String data,
13086                        Bundle extras, boolean ordered, boolean sticky,
13087                        int sendingUser) throws RemoteException {
13088                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13089                            reportStatus ? 1 : 0, 1, keys);
13090                    mHandler.sendMessage(msg);
13091                }
13092            });
13093        } else {
13094            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13095                    keys);
13096            mHandler.sendMessage(msg);
13097        }
13098    }
13099
13100    /** Binder call */
13101    @Override
13102    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13103            final int flags) {
13104        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13105        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13106        int returnCode = PackageManager.MOVE_SUCCEEDED;
13107        int currInstallFlags = 0;
13108        int newInstallFlags = 0;
13109
13110        File codeFile = null;
13111        String installerPackageName = null;
13112        String packageAbiOverride = null;
13113
13114        // reader
13115        synchronized (mPackages) {
13116            final PackageParser.Package pkg = mPackages.get(packageName);
13117            final PackageSetting ps = mSettings.mPackages.get(packageName);
13118            if (pkg == null || ps == null) {
13119                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13120            } else {
13121                // Disable moving fwd locked apps and system packages
13122                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13123                    Slog.w(TAG, "Cannot move system application");
13124                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13125                } else if (pkg.mOperationPending) {
13126                    Slog.w(TAG, "Attempt to move package which has pending operations");
13127                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13128                } else {
13129                    // Find install location first
13130                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13131                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13132                        Slog.w(TAG, "Ambigous flags specified for move location.");
13133                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13134                    } else {
13135                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13136                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13137                        currInstallFlags = isExternal(pkg)
13138                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13139
13140                        if (newInstallFlags == currInstallFlags) {
13141                            Slog.w(TAG, "No move required. Trying to move to same location");
13142                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13143                        } else {
13144                            if (isForwardLocked(pkg)) {
13145                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13146                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13147                            }
13148                        }
13149                    }
13150                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13151                        pkg.mOperationPending = true;
13152                    }
13153                }
13154
13155                codeFile = new File(pkg.codePath);
13156                installerPackageName = ps.installerPackageName;
13157                packageAbiOverride = ps.cpuAbiOverrideString;
13158            }
13159        }
13160
13161        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13162            try {
13163                observer.packageMoved(packageName, returnCode);
13164            } catch (RemoteException ignored) {
13165            }
13166            return;
13167        }
13168
13169        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13170            @Override
13171            public void onUserActionRequired(Intent intent) throws RemoteException {
13172                throw new IllegalStateException();
13173            }
13174
13175            @Override
13176            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13177                    Bundle extras) throws RemoteException {
13178                Slog.d(TAG, "Install result for move: "
13179                        + PackageManager.installStatusToString(returnCode, msg));
13180
13181                // We usually have a new package now after the install, but if
13182                // we failed we need to clear the pending flag on the original
13183                // package object.
13184                synchronized (mPackages) {
13185                    final PackageParser.Package pkg = mPackages.get(packageName);
13186                    if (pkg != null) {
13187                        pkg.mOperationPending = false;
13188                    }
13189                }
13190
13191                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13192                switch (status) {
13193                    case PackageInstaller.STATUS_SUCCESS:
13194                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13195                        break;
13196                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13197                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13198                        break;
13199                    default:
13200                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13201                        break;
13202                }
13203            }
13204        };
13205
13206        // Treat a move like reinstalling an existing app, which ensures that we
13207        // process everythign uniformly, like unpacking native libraries.
13208        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13209
13210        final Message msg = mHandler.obtainMessage(INIT_COPY);
13211        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13212        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13213                installerPackageName, null, user, packageAbiOverride);
13214        mHandler.sendMessage(msg);
13215    }
13216
13217    @Override
13218    public boolean setInstallLocation(int loc) {
13219        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13220                null);
13221        if (getInstallLocation() == loc) {
13222            return true;
13223        }
13224        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13225                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13226            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13227                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13228            return true;
13229        }
13230        return false;
13231   }
13232
13233    @Override
13234    public int getInstallLocation() {
13235        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13236                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13237                PackageHelper.APP_INSTALL_AUTO);
13238    }
13239
13240    /** Called by UserManagerService */
13241    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13242        mDirtyUsers.remove(userHandle);
13243        mSettings.removeUserLPw(userHandle);
13244        mPendingBroadcasts.remove(userHandle);
13245        if (mInstaller != null) {
13246            // Technically, we shouldn't be doing this with the package lock
13247            // held.  However, this is very rare, and there is already so much
13248            // other disk I/O going on, that we'll let it slide for now.
13249            mInstaller.removeUserDataDirs(userHandle);
13250        }
13251        mUserNeedsBadging.delete(userHandle);
13252        removeUnusedPackagesLILPw(userManager, userHandle);
13253    }
13254
13255    /**
13256     * We're removing userHandle and would like to remove any downloaded packages
13257     * that are no longer in use by any other user.
13258     * @param userHandle the user being removed
13259     */
13260    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13261        final boolean DEBUG_CLEAN_APKS = false;
13262        int [] users = userManager.getUserIdsLPr();
13263        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13264        while (psit.hasNext()) {
13265            PackageSetting ps = psit.next();
13266            if (ps.pkg == null) {
13267                continue;
13268            }
13269            final String packageName = ps.pkg.packageName;
13270            // Skip over if system app
13271            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13272                continue;
13273            }
13274            if (DEBUG_CLEAN_APKS) {
13275                Slog.i(TAG, "Checking package " + packageName);
13276            }
13277            boolean keep = false;
13278            for (int i = 0; i < users.length; i++) {
13279                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13280                    keep = true;
13281                    if (DEBUG_CLEAN_APKS) {
13282                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13283                                + users[i]);
13284                    }
13285                    break;
13286                }
13287            }
13288            if (!keep) {
13289                if (DEBUG_CLEAN_APKS) {
13290                    Slog.i(TAG, "  Removing package " + packageName);
13291                }
13292                mHandler.post(new Runnable() {
13293                    public void run() {
13294                        deletePackageX(packageName, userHandle, 0);
13295                    } //end run
13296                });
13297            }
13298        }
13299    }
13300
13301    /** Called by UserManagerService */
13302    void createNewUserLILPw(int userHandle, File path) {
13303        if (mInstaller != null) {
13304            mInstaller.createUserConfig(userHandle);
13305            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13306        }
13307    }
13308
13309    @Override
13310    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13311        mContext.enforceCallingOrSelfPermission(
13312                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13313                "Only package verification agents can read the verifier device identity");
13314
13315        synchronized (mPackages) {
13316            return mSettings.getVerifierDeviceIdentityLPw();
13317        }
13318    }
13319
13320    @Override
13321    public void setPermissionEnforced(String permission, boolean enforced) {
13322        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13323        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13324            synchronized (mPackages) {
13325                if (mSettings.mReadExternalStorageEnforced == null
13326                        || mSettings.mReadExternalStorageEnforced != enforced) {
13327                    mSettings.mReadExternalStorageEnforced = enforced;
13328                    mSettings.writeLPr();
13329                }
13330            }
13331            // kill any non-foreground processes so we restart them and
13332            // grant/revoke the GID.
13333            final IActivityManager am = ActivityManagerNative.getDefault();
13334            if (am != null) {
13335                final long token = Binder.clearCallingIdentity();
13336                try {
13337                    am.killProcessesBelowForeground("setPermissionEnforcement");
13338                } catch (RemoteException e) {
13339                } finally {
13340                    Binder.restoreCallingIdentity(token);
13341                }
13342            }
13343        } else {
13344            throw new IllegalArgumentException("No selective enforcement for " + permission);
13345        }
13346    }
13347
13348    @Override
13349    @Deprecated
13350    public boolean isPermissionEnforced(String permission) {
13351        return true;
13352    }
13353
13354    @Override
13355    public boolean isStorageLow() {
13356        final long token = Binder.clearCallingIdentity();
13357        try {
13358            final DeviceStorageMonitorInternal
13359                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13360            if (dsm != null) {
13361                return dsm.isMemoryLow();
13362            } else {
13363                return false;
13364            }
13365        } finally {
13366            Binder.restoreCallingIdentity(token);
13367        }
13368    }
13369
13370    @Override
13371    public IPackageInstaller getPackageInstaller() {
13372        return mInstallerService;
13373    }
13374
13375    private boolean userNeedsBadging(int userId) {
13376        int index = mUserNeedsBadging.indexOfKey(userId);
13377        if (index < 0) {
13378            final UserInfo userInfo;
13379            final long token = Binder.clearCallingIdentity();
13380            try {
13381                userInfo = sUserManager.getUserInfo(userId);
13382            } finally {
13383                Binder.restoreCallingIdentity(token);
13384            }
13385            final boolean b;
13386            if (userInfo != null && userInfo.isManagedProfile()) {
13387                b = true;
13388            } else {
13389                b = false;
13390            }
13391            mUserNeedsBadging.put(userId, b);
13392            return b;
13393        }
13394        return mUserNeedsBadging.valueAt(index);
13395    }
13396
13397    @Override
13398    public KeySet getKeySetByAlias(String packageName, String alias) {
13399        if (packageName == null || alias == null) {
13400            return null;
13401        }
13402        synchronized(mPackages) {
13403            final PackageParser.Package pkg = mPackages.get(packageName);
13404            if (pkg == null) {
13405                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13406                throw new IllegalArgumentException("Unknown package: " + packageName);
13407            }
13408            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13409            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13410        }
13411    }
13412
13413    @Override
13414    public KeySet getSigningKeySet(String packageName) {
13415        if (packageName == null) {
13416            return null;
13417        }
13418        synchronized(mPackages) {
13419            final PackageParser.Package pkg = mPackages.get(packageName);
13420            if (pkg == null) {
13421                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13422                throw new IllegalArgumentException("Unknown package: " + packageName);
13423            }
13424            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13425                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13426                throw new SecurityException("May not access signing KeySet of other apps.");
13427            }
13428            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13429            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13430        }
13431    }
13432
13433    @Override
13434    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13435        if (packageName == null || ks == null) {
13436            return false;
13437        }
13438        synchronized(mPackages) {
13439            final PackageParser.Package pkg = mPackages.get(packageName);
13440            if (pkg == null) {
13441                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13442                throw new IllegalArgumentException("Unknown package: " + packageName);
13443            }
13444            IBinder ksh = ks.getToken();
13445            if (ksh instanceof KeySetHandle) {
13446                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13447                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13448            }
13449            return false;
13450        }
13451    }
13452
13453    @Override
13454    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13455        if (packageName == null || ks == null) {
13456            return false;
13457        }
13458        synchronized(mPackages) {
13459            final PackageParser.Package pkg = mPackages.get(packageName);
13460            if (pkg == null) {
13461                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13462                throw new IllegalArgumentException("Unknown package: " + packageName);
13463            }
13464            IBinder ksh = ks.getToken();
13465            if (ksh instanceof KeySetHandle) {
13466                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13467                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13468            }
13469            return false;
13470        }
13471    }
13472
13473    public void getUsageStatsIfNoPackageUsageInfo() {
13474        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13475            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13476            if (usm == null) {
13477                throw new IllegalStateException("UsageStatsManager must be initialized");
13478            }
13479            long now = System.currentTimeMillis();
13480            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13481            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13482                String packageName = entry.getKey();
13483                PackageParser.Package pkg = mPackages.get(packageName);
13484                if (pkg == null) {
13485                    continue;
13486                }
13487                UsageStats usage = entry.getValue();
13488                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13489                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13490            }
13491        }
13492    }
13493}
13494