PackageManagerService.java revision aea5c6e33d120499799474f28b4f1e475d21990b 
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                        // This is the point at which we know that the system-disk APK
4291                        // for this package has moved during a reboot (e.g. due to an OTA),
4292                        // so we need to reevaluate it for privilege policy.
4293                        if (locationIsPrivileged(scanFile)) {
4294                            updatedPkg.pkgFlags |= ApplicationInfo.FLAG_PRIVILEGED;
4295                        }
4296                    }
4297                    updatedPkg.pkg = pkg;
4298                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4299                } else {
4300                    // The current app on the system partition is better than
4301                    // what we have updated to on the data partition; switch
4302                    // back to the system partition version.
4303                    // At this point, its safely assumed that package installation for
4304                    // apps in system partition will go through. If not there won't be a working
4305                    // version of the app
4306                    // writer
4307                    synchronized (mPackages) {
4308                        // Just remove the loaded entries from package lists.
4309                        mPackages.remove(ps.name);
4310                    }
4311
4312                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4313                            + " reverting from " + ps.codePathString
4314                            + ": new version " + pkg.mVersionCode
4315                            + " better than installed " + ps.versionCode);
4316
4317                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4318                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4319                            getAppDexInstructionSets(ps));
4320                    synchronized (mInstallLock) {
4321                        args.cleanUpResourcesLI();
4322                    }
4323                    synchronized (mPackages) {
4324                        mSettings.enableSystemPackageLPw(ps.name);
4325                    }
4326                    updatedPkgBetter = true;
4327                }
4328            }
4329        }
4330
4331        if (updatedPkg != null) {
4332            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4333            // initially
4334            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4335
4336            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4337            // flag set initially
4338            if ((updatedPkg.pkgFlags & ApplicationInfo.FLAG_PRIVILEGED) != 0) {
4339                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4340            }
4341        }
4342
4343        // Verify certificates against what was last scanned
4344        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4345
4346        /*
4347         * A new system app appeared, but we already had a non-system one of the
4348         * same name installed earlier.
4349         */
4350        boolean shouldHideSystemApp = false;
4351        if (updatedPkg == null && ps != null
4352                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4353            /*
4354             * Check to make sure the signatures match first. If they don't,
4355             * wipe the installed application and its data.
4356             */
4357            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4358                    != PackageManager.SIGNATURE_MATCH) {
4359                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4360                        + " signatures don't match existing userdata copy; removing");
4361                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4362                ps = null;
4363            } else {
4364                /*
4365                 * If the newly-added system app is an older version than the
4366                 * already installed version, hide it. It will be scanned later
4367                 * and re-added like an update.
4368                 */
4369                if (pkg.mVersionCode < ps.versionCode) {
4370                    shouldHideSystemApp = true;
4371                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4372                            + " but new version " + pkg.mVersionCode + " better than installed "
4373                            + ps.versionCode + "; hiding system");
4374                } else {
4375                    /*
4376                     * The newly found system app is a newer version that the
4377                     * one previously installed. Simply remove the
4378                     * already-installed application and replace it with our own
4379                     * while keeping the application data.
4380                     */
4381                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4382                            + " reverting from " + ps.codePathString + ": new version "
4383                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4384                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4385                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4386                            getAppDexInstructionSets(ps));
4387                    synchronized (mInstallLock) {
4388                        args.cleanUpResourcesLI();
4389                    }
4390                }
4391            }
4392        }
4393
4394        // The apk is forward locked (not public) if its code and resources
4395        // are kept in different files. (except for app in either system or
4396        // vendor path).
4397        // TODO grab this value from PackageSettings
4398        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4399            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4400                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4401            }
4402        }
4403
4404        // TODO: extend to support forward-locked splits
4405        String resourcePath = null;
4406        String baseResourcePath = null;
4407        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4408            if (ps != null && ps.resourcePathString != null) {
4409                resourcePath = ps.resourcePathString;
4410                baseResourcePath = ps.resourcePathString;
4411            } else {
4412                // Should not happen at all. Just log an error.
4413                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4414            }
4415        } else {
4416            resourcePath = pkg.codePath;
4417            baseResourcePath = pkg.baseCodePath;
4418        }
4419
4420        // Set application objects path explicitly.
4421        pkg.applicationInfo.setCodePath(pkg.codePath);
4422        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4423        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4424        pkg.applicationInfo.setResourcePath(resourcePath);
4425        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4426        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4427
4428        // Note that we invoke the following method only if we are about to unpack an application
4429        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4430                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4431
4432        /*
4433         * If the system app should be overridden by a previously installed
4434         * data, hide the system app now and let the /data/app scan pick it up
4435         * again.
4436         */
4437        if (shouldHideSystemApp) {
4438            synchronized (mPackages) {
4439                /*
4440                 * We have to grant systems permissions before we hide, because
4441                 * grantPermissions will assume the package update is trying to
4442                 * expand its permissions.
4443                 */
4444                grantPermissionsLPw(pkg, true, pkg.packageName);
4445                mSettings.disableSystemPackageLPw(pkg.packageName);
4446            }
4447        }
4448
4449        return scannedPkg;
4450    }
4451
4452    private static String fixProcessName(String defProcessName,
4453            String processName, int uid) {
4454        if (processName == null) {
4455            return defProcessName;
4456        }
4457        return processName;
4458    }
4459
4460    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4461            throws PackageManagerException {
4462        if (pkgSetting.signatures.mSignatures != null) {
4463            // Already existing package. Make sure signatures match
4464            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4465                    == PackageManager.SIGNATURE_MATCH;
4466            if (!match) {
4467                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4468                        == PackageManager.SIGNATURE_MATCH;
4469            }
4470            if (!match) {
4471                match = compareSignaturesRecover(pkgSetting.signatures, pkg)
4472                        == PackageManager.SIGNATURE_MATCH;
4473            }
4474            if (!match) {
4475                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4476                        + pkg.packageName + " signatures do not match the "
4477                        + "previously installed version; ignoring!");
4478            }
4479        }
4480
4481        // Check for shared user signatures
4482        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4483            // Already existing package. Make sure signatures match
4484            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4485                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4486            if (!match) {
4487                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4488                        == PackageManager.SIGNATURE_MATCH;
4489            }
4490            if (!match) {
4491                match = compareSignaturesRecover(pkgSetting.sharedUser.signatures, pkg)
4492                        == PackageManager.SIGNATURE_MATCH;
4493            }
4494            if (!match) {
4495                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4496                        "Package " + pkg.packageName
4497                        + " has no signatures that match those in shared user "
4498                        + pkgSetting.sharedUser.name + "; ignoring!");
4499            }
4500        }
4501    }
4502
4503    /**
4504     * Enforces that only the system UID or root's UID can call a method exposed
4505     * via Binder.
4506     *
4507     * @param message used as message if SecurityException is thrown
4508     * @throws SecurityException if the caller is not system or root
4509     */
4510    private static final void enforceSystemOrRoot(String message) {
4511        final int uid = Binder.getCallingUid();
4512        if (uid != Process.SYSTEM_UID && uid != 0) {
4513            throw new SecurityException(message);
4514        }
4515    }
4516
4517    @Override
4518    public void performBootDexOpt() {
4519        enforceSystemOrRoot("Only the system can request dexopt be performed");
4520
4521        final ArraySet<PackageParser.Package> pkgs;
4522        synchronized (mPackages) {
4523            pkgs = mDeferredDexOpt;
4524            mDeferredDexOpt = null;
4525        }
4526
4527        if (pkgs != null) {
4528            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4529            // in case the device runs out of space.
4530            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4531            // Give priority to core apps.
4532            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4533                PackageParser.Package pkg = it.next();
4534                if (pkg.coreApp) {
4535                    if (DEBUG_DEXOPT) {
4536                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4537                    }
4538                    sortedPkgs.add(pkg);
4539                    it.remove();
4540                }
4541            }
4542            // Give priority to system apps that listen for pre boot complete.
4543            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4544            ArraySet<String> pkgNames = getPackageNamesForIntent(intent);
4545            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4546                PackageParser.Package pkg = it.next();
4547                if (pkgNames.contains(pkg.packageName)) {
4548                    if (DEBUG_DEXOPT) {
4549                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4550                    }
4551                    sortedPkgs.add(pkg);
4552                    it.remove();
4553                }
4554            }
4555            // Give priority to system apps.
4556            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4557                PackageParser.Package pkg = it.next();
4558                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4559                    if (DEBUG_DEXOPT) {
4560                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4561                    }
4562                    sortedPkgs.add(pkg);
4563                    it.remove();
4564                }
4565            }
4566            // Give priority to updated system apps.
4567            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4568                PackageParser.Package pkg = it.next();
4569                if (isUpdatedSystemApp(pkg)) {
4570                    if (DEBUG_DEXOPT) {
4571                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4572                    }
4573                    sortedPkgs.add(pkg);
4574                    it.remove();
4575                }
4576            }
4577            // Give priority to apps that listen for boot complete.
4578            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4579            pkgNames = getPackageNamesForIntent(intent);
4580            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4581                PackageParser.Package pkg = it.next();
4582                if (pkgNames.contains(pkg.packageName)) {
4583                    if (DEBUG_DEXOPT) {
4584                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4585                    }
4586                    sortedPkgs.add(pkg);
4587                    it.remove();
4588                }
4589            }
4590            // Filter out packages that aren't recently used.
4591            filterRecentlyUsedApps(pkgs);
4592            // Add all remaining apps.
4593            for (PackageParser.Package pkg : pkgs) {
4594                if (DEBUG_DEXOPT) {
4595                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4596                }
4597                sortedPkgs.add(pkg);
4598            }
4599
4600            // If we want to be lazy, filter everything that wasn't recently used.
4601            if (mLazyDexOpt) {
4602                filterRecentlyUsedApps(sortedPkgs);
4603            }
4604
4605            int i = 0;
4606            int total = sortedPkgs.size();
4607            File dataDir = Environment.getDataDirectory();
4608            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4609            if (lowThreshold == 0) {
4610                throw new IllegalStateException("Invalid low memory threshold");
4611            }
4612            for (PackageParser.Package pkg : sortedPkgs) {
4613                long usableSpace = dataDir.getUsableSpace();
4614                if (usableSpace < lowThreshold) {
4615                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4616                    break;
4617                }
4618                performBootDexOpt(pkg, ++i, total);
4619            }
4620        }
4621    }
4622
4623    private void filterRecentlyUsedApps(Collection<PackageParser.Package> pkgs) {
4624        // Filter out packages that aren't recently used.
4625        //
4626        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4627        // should do a full dexopt.
4628        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4629            int total = pkgs.size();
4630            int skipped = 0;
4631            long now = System.currentTimeMillis();
4632            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4633                PackageParser.Package pkg = i.next();
4634                long then = pkg.mLastPackageUsageTimeInMills;
4635                if (then + mDexOptLRUThresholdInMills < now) {
4636                    if (DEBUG_DEXOPT) {
4637                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4638                              ((then == 0) ? "never" : new Date(then)));
4639                    }
4640                    i.remove();
4641                    skipped++;
4642                }
4643            }
4644            if (DEBUG_DEXOPT) {
4645                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4646            }
4647        }
4648    }
4649
4650    private ArraySet<String> getPackageNamesForIntent(Intent intent) {
4651        List<ResolveInfo> ris = null;
4652        try {
4653            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4654                    intent, null, 0, UserHandle.USER_OWNER);
4655        } catch (RemoteException e) {
4656        }
4657        ArraySet<String> pkgNames = new ArraySet<String>();
4658        if (ris != null) {
4659            for (ResolveInfo ri : ris) {
4660                pkgNames.add(ri.activityInfo.packageName);
4661            }
4662        }
4663        return pkgNames;
4664    }
4665
4666    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4667        if (DEBUG_DEXOPT) {
4668            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4669        }
4670        if (!isFirstBoot()) {
4671            try {
4672                ActivityManagerNative.getDefault().showBootMessage(
4673                        mContext.getResources().getString(R.string.android_upgrading_apk,
4674                                curr, total), true);
4675            } catch (RemoteException e) {
4676            }
4677        }
4678        PackageParser.Package p = pkg;
4679        synchronized (mInstallLock) {
4680            performDexOptLI(p, null /* instruction sets */, false /* force dex */,
4681                            false /* defer */, true /* include dependencies */);
4682        }
4683    }
4684
4685    @Override
4686    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4687        return performDexOpt(packageName, instructionSet, false);
4688    }
4689
4690    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4691        if (info.primaryCpuAbi == null) {
4692            return getPreferredInstructionSet();
4693        }
4694
4695        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4696    }
4697
4698    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4699        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4700        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4701        if (!dexopt && !updateUsage) {
4702            // We aren't going to dexopt or update usage, so bail early.
4703            return false;
4704        }
4705        PackageParser.Package p;
4706        final String targetInstructionSet;
4707        synchronized (mPackages) {
4708            p = mPackages.get(packageName);
4709            if (p == null) {
4710                return false;
4711            }
4712            if (updateUsage) {
4713                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4714            }
4715            mPackageUsage.write(false);
4716            if (!dexopt) {
4717                // We aren't going to dexopt, so bail early.
4718                return false;
4719            }
4720
4721            targetInstructionSet = instructionSet != null ? instructionSet :
4722                    getPrimaryInstructionSet(p.applicationInfo);
4723            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4724                return false;
4725            }
4726        }
4727
4728        synchronized (mInstallLock) {
4729            final String[] instructionSets = new String[] { targetInstructionSet };
4730            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4731                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4732        }
4733    }
4734
4735    public ArraySet<String> getPackagesThatNeedDexOpt() {
4736        ArraySet<String> pkgs = null;
4737        synchronized (mPackages) {
4738            for (PackageParser.Package p : mPackages.values()) {
4739                if (DEBUG_DEXOPT) {
4740                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4741                }
4742                if (!p.mDexOptPerformed.isEmpty()) {
4743                    continue;
4744                }
4745                if (pkgs == null) {
4746                    pkgs = new ArraySet<String>();
4747                }
4748                pkgs.add(p.packageName);
4749            }
4750        }
4751        return pkgs;
4752    }
4753
4754    public void shutdown() {
4755        mPackageUsage.write(true);
4756    }
4757
4758    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4759             boolean forceDex, boolean defer, ArraySet<String> done) {
4760        for (int i=0; i<libs.size(); i++) {
4761            PackageParser.Package libPkg;
4762            String libName;
4763            synchronized (mPackages) {
4764                libName = libs.get(i);
4765                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4766                if (lib != null && lib.apk != null) {
4767                    libPkg = mPackages.get(lib.apk);
4768                } else {
4769                    libPkg = null;
4770                }
4771            }
4772            if (libPkg != null && !done.contains(libName)) {
4773                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4774            }
4775        }
4776    }
4777
4778    static final int DEX_OPT_SKIPPED = 0;
4779    static final int DEX_OPT_PERFORMED = 1;
4780    static final int DEX_OPT_DEFERRED = 2;
4781    static final int DEX_OPT_FAILED = -1;
4782
4783    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4784            boolean forceDex, boolean defer, ArraySet<String> done) {
4785        final String[] instructionSets = targetInstructionSets != null ?
4786                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4787
4788        if (done != null) {
4789            done.add(pkg.packageName);
4790            if (pkg.usesLibraries != null) {
4791                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4792            }
4793            if (pkg.usesOptionalLibraries != null) {
4794                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4795            }
4796        }
4797
4798        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4799            return DEX_OPT_SKIPPED;
4800        }
4801
4802        final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
4803
4804        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4805        boolean performedDexOpt = false;
4806        // There are three basic cases here:
4807        // 1.) we need to dexopt, either because we are forced or it is needed
4808        // 2.) we are defering a needed dexopt
4809        // 3.) we are skipping an unneeded dexopt
4810        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4811        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4812            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4813                continue;
4814            }
4815
4816            for (String path : paths) {
4817                try {
4818                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4819                    // patckage or the one we find does not match the image checksum (i.e. it was
4820                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4821                    // odex file and it matches the checksum of the image but not its base address,
4822                    // meaning we need to move it.
4823                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4824                            pkg.packageName, dexCodeInstructionSet, defer);
4825                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4826                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4827                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
4828                                + " vmSafeMode=" + vmSafeMode);
4829                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4830                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4831                                pkg.packageName, dexCodeInstructionSet, vmSafeMode);
4832
4833                        if (ret < 0) {
4834                            // Don't bother running dexopt again if we failed, it will probably
4835                            // just result in an error again. Also, don't bother dexopting for other
4836                            // paths & ISAs.
4837                            return DEX_OPT_FAILED;
4838                        }
4839
4840                        performedDexOpt = true;
4841                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4842                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4843                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4844                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4845                                pkg.packageName, dexCodeInstructionSet);
4846
4847                        if (ret < 0) {
4848                            // Don't bother running patchoat again if we failed, it will probably
4849                            // just result in an error again. Also, don't bother dexopting for other
4850                            // paths & ISAs.
4851                            return DEX_OPT_FAILED;
4852                        }
4853
4854                        performedDexOpt = true;
4855                    }
4856
4857                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4858                    // paths and instruction sets. We'll deal with them all together when we process
4859                    // our list of deferred dexopts.
4860                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4861                        if (mDeferredDexOpt == null) {
4862                            mDeferredDexOpt = new ArraySet<PackageParser.Package>();
4863                        }
4864                        mDeferredDexOpt.add(pkg);
4865                        return DEX_OPT_DEFERRED;
4866                    }
4867                } catch (FileNotFoundException e) {
4868                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4869                    return DEX_OPT_FAILED;
4870                } catch (IOException e) {
4871                    Slog.w(TAG, "IOException reading apk: " + path, e);
4872                    return DEX_OPT_FAILED;
4873                } catch (StaleDexCacheError e) {
4874                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4875                    return DEX_OPT_FAILED;
4876                } catch (Exception e) {
4877                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4878                    return DEX_OPT_FAILED;
4879                }
4880            }
4881
4882            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4883            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4884            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4885            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4886            // it.
4887            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4888        }
4889
4890        // If we've gotten here, we're sure that no error occurred and that we haven't
4891        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4892        // we've skipped all of them because they are up to date. In both cases this
4893        // package doesn't need dexopt any longer.
4894        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4895    }
4896
4897    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4898        if (info.primaryCpuAbi != null) {
4899            if (info.secondaryCpuAbi != null) {
4900                return new String[] {
4901                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4902                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4903            } else {
4904                return new String[] {
4905                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4906            }
4907        }
4908
4909        return new String[] { getPreferredInstructionSet() };
4910    }
4911
4912    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4913        if (ps.primaryCpuAbiString != null) {
4914            if (ps.secondaryCpuAbiString != null) {
4915                return new String[] {
4916                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4917                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4918            } else {
4919                return new String[] {
4920                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
4921            }
4922        }
4923
4924        return new String[] { getPreferredInstructionSet() };
4925    }
4926
4927    private static String getPreferredInstructionSet() {
4928        if (sPreferredInstructionSet == null) {
4929            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
4930        }
4931
4932        return sPreferredInstructionSet;
4933    }
4934
4935    private static List<String> getAllInstructionSets() {
4936        final String[] allAbis = Build.SUPPORTED_ABIS;
4937        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
4938
4939        for (String abi : allAbis) {
4940            final String instructionSet = VMRuntime.getInstructionSet(abi);
4941            if (!allInstructionSets.contains(instructionSet)) {
4942                allInstructionSets.add(instructionSet);
4943            }
4944        }
4945
4946        return allInstructionSets;
4947    }
4948
4949    /**
4950     * Returns the instruction set that should be used to compile dex code. In the presence of
4951     * a native bridge this might be different than the one shared libraries use.
4952     */
4953    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
4954        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
4955        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
4956    }
4957
4958    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
4959        ArraySet<String> dexCodeInstructionSets = new ArraySet<String>(instructionSets.length);
4960        for (String instructionSet : instructionSets) {
4961            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
4962        }
4963        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
4964    }
4965
4966    /**
4967     * Returns deduplicated list of supported instructions for dex code.
4968     */
4969    public static String[] getAllDexCodeInstructionSets() {
4970        String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length];
4971        for (int i = 0; i < supportedInstructionSets.length; i++) {
4972            String abi = Build.SUPPORTED_ABIS[i];
4973            supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi);
4974        }
4975        return getDexCodeInstructionSets(supportedInstructionSets);
4976    }
4977
4978    @Override
4979    public void forceDexOpt(String packageName) {
4980        enforceSystemOrRoot("forceDexOpt");
4981
4982        PackageParser.Package pkg;
4983        synchronized (mPackages) {
4984            pkg = mPackages.get(packageName);
4985            if (pkg == null) {
4986                throw new IllegalArgumentException("Missing package: " + packageName);
4987            }
4988        }
4989
4990        synchronized (mInstallLock) {
4991            final String[] instructionSets = new String[] {
4992                    getPrimaryInstructionSet(pkg.applicationInfo) };
4993            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
4994            if (res != DEX_OPT_PERFORMED) {
4995                throw new IllegalStateException("Failed to dexopt: " + res);
4996            }
4997        }
4998    }
4999
5000    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
5001                                boolean forceDex, boolean defer, boolean inclDependencies) {
5002        ArraySet<String> done;
5003        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
5004            done = new ArraySet<String>();
5005            done.add(pkg.packageName);
5006        } else {
5007            done = null;
5008        }
5009        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
5010    }
5011
5012    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
5013        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
5014            Slog.w(TAG, "Unable to update from " + oldPkg.name
5015                    + " to " + newPkg.packageName
5016                    + ": old package not in system partition");
5017            return false;
5018        } else if (mPackages.get(oldPkg.name) != null) {
5019            Slog.w(TAG, "Unable to update from " + oldPkg.name
5020                    + " to " + newPkg.packageName
5021                    + ": old package still exists");
5022            return false;
5023        }
5024        return true;
5025    }
5026
5027    File getDataPathForUser(int userId) {
5028        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
5029    }
5030
5031    private File getDataPathForPackage(String packageName, int userId) {
5032        /*
5033         * Until we fully support multiple users, return the directory we
5034         * previously would have. The PackageManagerTests will need to be
5035         * revised when this is changed back..
5036         */
5037        if (userId == 0) {
5038            return new File(mAppDataDir, packageName);
5039        } else {
5040            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
5041                + File.separator + packageName);
5042        }
5043    }
5044
5045    private int createDataDirsLI(String packageName, int uid, String seinfo) {
5046        int[] users = sUserManager.getUserIds();
5047        int res = mInstaller.install(packageName, uid, uid, seinfo);
5048        if (res < 0) {
5049            return res;
5050        }
5051        for (int user : users) {
5052            if (user != 0) {
5053                res = mInstaller.createUserData(packageName,
5054                        UserHandle.getUid(user, uid), user, seinfo);
5055                if (res < 0) {
5056                    return res;
5057                }
5058            }
5059        }
5060        return res;
5061    }
5062
5063    private int removeDataDirsLI(String packageName) {
5064        int[] users = sUserManager.getUserIds();
5065        int res = 0;
5066        for (int user : users) {
5067            int resInner = mInstaller.remove(packageName, user);
5068            if (resInner < 0) {
5069                res = resInner;
5070            }
5071        }
5072
5073        return res;
5074    }
5075
5076    private int deleteCodeCacheDirsLI(String packageName) {
5077        int[] users = sUserManager.getUserIds();
5078        int res = 0;
5079        for (int user : users) {
5080            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
5081            if (resInner < 0) {
5082                res = resInner;
5083            }
5084        }
5085        return res;
5086    }
5087
5088    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
5089            PackageParser.Package changingLib) {
5090        if (file.path != null) {
5091            usesLibraryFiles.add(file.path);
5092            return;
5093        }
5094        PackageParser.Package p = mPackages.get(file.apk);
5095        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
5096            // If we are doing this while in the middle of updating a library apk,
5097            // then we need to make sure to use that new apk for determining the
5098            // dependencies here.  (We haven't yet finished committing the new apk
5099            // to the package manager state.)
5100            if (p == null || p.packageName.equals(changingLib.packageName)) {
5101                p = changingLib;
5102            }
5103        }
5104        if (p != null) {
5105            usesLibraryFiles.addAll(p.getAllCodePaths());
5106        }
5107    }
5108
5109    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
5110            PackageParser.Package changingLib) throws PackageManagerException {
5111        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
5112            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
5113            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
5114            for (int i=0; i<N; i++) {
5115                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
5116                if (file == null) {
5117                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
5118                            "Package " + pkg.packageName + " requires unavailable shared library "
5119                            + pkg.usesLibraries.get(i) + "; failing!");
5120                }
5121                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5122            }
5123            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
5124            for (int i=0; i<N; i++) {
5125                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
5126                if (file == null) {
5127                    Slog.w(TAG, "Package " + pkg.packageName
5128                            + " desires unavailable shared library "
5129                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5130                } else {
5131                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5132                }
5133            }
5134            N = usesLibraryFiles.size();
5135            if (N > 0) {
5136                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5137            } else {
5138                pkg.usesLibraryFiles = null;
5139            }
5140        }
5141    }
5142
5143    private static boolean hasString(List<String> list, List<String> which) {
5144        if (list == null) {
5145            return false;
5146        }
5147        for (int i=list.size()-1; i>=0; i--) {
5148            for (int j=which.size()-1; j>=0; j--) {
5149                if (which.get(j).equals(list.get(i))) {
5150                    return true;
5151                }
5152            }
5153        }
5154        return false;
5155    }
5156
5157    private void updateAllSharedLibrariesLPw() {
5158        for (PackageParser.Package pkg : mPackages.values()) {
5159            try {
5160                updateSharedLibrariesLPw(pkg, null);
5161            } catch (PackageManagerException e) {
5162                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5163            }
5164        }
5165    }
5166
5167    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5168            PackageParser.Package changingPkg) {
5169        ArrayList<PackageParser.Package> res = null;
5170        for (PackageParser.Package pkg : mPackages.values()) {
5171            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5172                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5173                if (res == null) {
5174                    res = new ArrayList<PackageParser.Package>();
5175                }
5176                res.add(pkg);
5177                try {
5178                    updateSharedLibrariesLPw(pkg, changingPkg);
5179                } catch (PackageManagerException e) {
5180                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5181                }
5182            }
5183        }
5184        return res;
5185    }
5186
5187    /**
5188     * Derive the value of the {@code cpuAbiOverride} based on the provided
5189     * value and an optional stored value from the package settings.
5190     */
5191    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5192        String cpuAbiOverride = null;
5193
5194        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5195            cpuAbiOverride = null;
5196        } else if (abiOverride != null) {
5197            cpuAbiOverride = abiOverride;
5198        } else if (settings != null) {
5199            cpuAbiOverride = settings.cpuAbiOverrideString;
5200        }
5201
5202        return cpuAbiOverride;
5203    }
5204
5205    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5206            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5207        boolean success = false;
5208        try {
5209            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5210                    currentTime, user);
5211            success = true;
5212            return res;
5213        } finally {
5214            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5215                removeDataDirsLI(pkg.packageName);
5216            }
5217        }
5218    }
5219
5220    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5221            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5222        final File scanFile = new File(pkg.codePath);
5223        if (pkg.applicationInfo.getCodePath() == null ||
5224                pkg.applicationInfo.getResourcePath() == null) {
5225            // Bail out. The resource and code paths haven't been set.
5226            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5227                    "Code and resource paths haven't been set correctly");
5228        }
5229
5230        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5231            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5232        } else {
5233            // Only allow system apps to be flagged as core apps.
5234            pkg.coreApp = false;
5235        }
5236
5237        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5238            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_PRIVILEGED;
5239        }
5240
5241        if (mCustomResolverComponentName != null &&
5242                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5243            setUpCustomResolverActivity(pkg);
5244        }
5245
5246        if (pkg.packageName.equals("android")) {
5247            synchronized (mPackages) {
5248                if (mAndroidApplication != null) {
5249                    Slog.w(TAG, "*************************************************");
5250                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5251                    Slog.w(TAG, " file=" + scanFile);
5252                    Slog.w(TAG, "*************************************************");
5253                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5254                            "Core android package being redefined.  Skipping.");
5255                }
5256
5257                // Set up information for our fall-back user intent resolution activity.
5258                mPlatformPackage = pkg;
5259                pkg.mVersionCode = mSdkVersion;
5260                mAndroidApplication = pkg.applicationInfo;
5261
5262                if (!mResolverReplaced) {
5263                    mResolveActivity.applicationInfo = mAndroidApplication;
5264                    mResolveActivity.name = ResolverActivity.class.getName();
5265                    mResolveActivity.packageName = mAndroidApplication.packageName;
5266                    mResolveActivity.processName = "system:ui";
5267                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5268                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5269                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5270                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5271                    mResolveActivity.exported = true;
5272                    mResolveActivity.enabled = true;
5273                    mResolveInfo.activityInfo = mResolveActivity;
5274                    mResolveInfo.priority = 0;
5275                    mResolveInfo.preferredOrder = 0;
5276                    mResolveInfo.match = 0;
5277                    mResolveComponentName = new ComponentName(
5278                            mAndroidApplication.packageName, mResolveActivity.name);
5279                }
5280            }
5281        }
5282
5283        if (DEBUG_PACKAGE_SCANNING) {
5284            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5285                Log.d(TAG, "Scanning package " + pkg.packageName);
5286        }
5287
5288        if (mPackages.containsKey(pkg.packageName)
5289                || mSharedLibraries.containsKey(pkg.packageName)) {
5290            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5291                    "Application package " + pkg.packageName
5292                    + " already installed.  Skipping duplicate.");
5293        }
5294
5295        // Initialize package source and resource directories
5296        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5297        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5298
5299        SharedUserSetting suid = null;
5300        PackageSetting pkgSetting = null;
5301
5302        if (!isSystemApp(pkg)) {
5303            // Only system apps can use these features.
5304            pkg.mOriginalPackages = null;
5305            pkg.mRealPackage = null;
5306            pkg.mAdoptPermissions = null;
5307        }
5308
5309        // writer
5310        synchronized (mPackages) {
5311            if (pkg.mSharedUserId != null) {
5312                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, true);
5313                if (suid == null) {
5314                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5315                            "Creating application package " + pkg.packageName
5316                            + " for shared user failed");
5317                }
5318                if (DEBUG_PACKAGE_SCANNING) {
5319                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5320                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5321                                + "): packages=" + suid.packages);
5322                }
5323            }
5324
5325            // Check if we are renaming from an original package name.
5326            PackageSetting origPackage = null;
5327            String realName = null;
5328            if (pkg.mOriginalPackages != null) {
5329                // This package may need to be renamed to a previously
5330                // installed name.  Let's check on that...
5331                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5332                if (pkg.mOriginalPackages.contains(renamed)) {
5333                    // This package had originally been installed as the
5334                    // original name, and we have already taken care of
5335                    // transitioning to the new one.  Just update the new
5336                    // one to continue using the old name.
5337                    realName = pkg.mRealPackage;
5338                    if (!pkg.packageName.equals(renamed)) {
5339                        // Callers into this function may have already taken
5340                        // care of renaming the package; only do it here if
5341                        // it is not already done.
5342                        pkg.setPackageName(renamed);
5343                    }
5344
5345                } else {
5346                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5347                        if ((origPackage = mSettings.peekPackageLPr(
5348                                pkg.mOriginalPackages.get(i))) != null) {
5349                            // We do have the package already installed under its
5350                            // original name...  should we use it?
5351                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5352                                // New package is not compatible with original.
5353                                origPackage = null;
5354                                continue;
5355                            } else if (origPackage.sharedUser != null) {
5356                                // Make sure uid is compatible between packages.
5357                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5358                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5359                                            + " to " + pkg.packageName + ": old uid "
5360                                            + origPackage.sharedUser.name
5361                                            + " differs from " + pkg.mSharedUserId);
5362                                    origPackage = null;
5363                                    continue;
5364                                }
5365                            } else {
5366                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5367                                        + pkg.packageName + " to old name " + origPackage.name);
5368                            }
5369                            break;
5370                        }
5371                    }
5372                }
5373            }
5374
5375            if (mTransferedPackages.contains(pkg.packageName)) {
5376                Slog.w(TAG, "Package " + pkg.packageName
5377                        + " was transferred to another, but its .apk remains");
5378            }
5379
5380            // Just create the setting, don't add it yet. For already existing packages
5381            // the PkgSetting exists already and doesn't have to be created.
5382            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5383                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5384                    pkg.applicationInfo.primaryCpuAbi,
5385                    pkg.applicationInfo.secondaryCpuAbi,
5386                    pkg.applicationInfo.flags, user, false);
5387            if (pkgSetting == null) {
5388                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5389                        "Creating application package " + pkg.packageName + " failed");
5390            }
5391
5392            if (pkgSetting.origPackage != null) {
5393                // If we are first transitioning from an original package,
5394                // fix up the new package's name now.  We need to do this after
5395                // looking up the package under its new name, so getPackageLP
5396                // can take care of fiddling things correctly.
5397                pkg.setPackageName(origPackage.name);
5398
5399                // File a report about this.
5400                String msg = "New package " + pkgSetting.realName
5401                        + " renamed to replace old package " + pkgSetting.name;
5402                reportSettingsProblem(Log.WARN, msg);
5403
5404                // Make a note of it.
5405                mTransferedPackages.add(origPackage.name);
5406
5407                // No longer need to retain this.
5408                pkgSetting.origPackage = null;
5409            }
5410
5411            if (realName != null) {
5412                // Make a note of it.
5413                mTransferedPackages.add(pkg.packageName);
5414            }
5415
5416            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5417                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5418            }
5419
5420            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5421                // Check all shared libraries and map to their actual file path.
5422                // We only do this here for apps not on a system dir, because those
5423                // are the only ones that can fail an install due to this.  We
5424                // will take care of the system apps by updating all of their
5425                // library paths after the scan is done.
5426                updateSharedLibrariesLPw(pkg, null);
5427            }
5428
5429            if (mFoundPolicyFile) {
5430                SELinuxMMAC.assignSeinfoValue(pkg);
5431            }
5432
5433            pkg.applicationInfo.uid = pkgSetting.appId;
5434            pkg.mExtras = pkgSetting;
5435            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5436                try {
5437                    verifySignaturesLP(pkgSetting, pkg);
5438                    // We just determined the app is signed correctly, so bring
5439                    // over the latest parsed certs.
5440                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5441                } catch (PackageManagerException e) {
5442                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5443                        throw e;
5444                    }
5445                    // The signature has changed, but this package is in the system
5446                    // image...  let's recover!
5447                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5448                    // However...  if this package is part of a shared user, but it
5449                    // doesn't match the signature of the shared user, let's fail.
5450                    // What this means is that you can't change the signatures
5451                    // associated with an overall shared user, which doesn't seem all
5452                    // that unreasonable.
5453                    if (pkgSetting.sharedUser != null) {
5454                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5455                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5456                            throw new PackageManagerException(
5457                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5458                                            "Signature mismatch for shared user : "
5459                                            + pkgSetting.sharedUser);
5460                        }
5461                    }
5462                    // File a report about this.
5463                    String msg = "System package " + pkg.packageName
5464                        + " signature changed; retaining data.";
5465                    reportSettingsProblem(Log.WARN, msg);
5466                }
5467            } else {
5468                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5469                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5470                            + pkg.packageName + " upgrade keys do not match the "
5471                            + "previously installed version");
5472                } else {
5473                    // We just determined the app is signed correctly, so bring
5474                    // over the latest parsed certs.
5475                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5476                }
5477            }
5478            // Verify that this new package doesn't have any content providers
5479            // that conflict with existing packages.  Only do this if the
5480            // package isn't already installed, since we don't want to break
5481            // things that are installed.
5482            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5483                final int N = pkg.providers.size();
5484                int i;
5485                for (i=0; i<N; i++) {
5486                    PackageParser.Provider p = pkg.providers.get(i);
5487                    if (p.info.authority != null) {
5488                        String names[] = p.info.authority.split(";");
5489                        for (int j = 0; j < names.length; j++) {
5490                            if (mProvidersByAuthority.containsKey(names[j])) {
5491                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5492                                final String otherPackageName =
5493                                        ((other != null && other.getComponentName() != null) ?
5494                                                other.getComponentName().getPackageName() : "?");
5495                                throw new PackageManagerException(
5496                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5497                                                "Can't install because provider name " + names[j]
5498                                                + " (in package " + pkg.applicationInfo.packageName
5499                                                + ") is already used by " + otherPackageName);
5500                            }
5501                        }
5502                    }
5503                }
5504            }
5505
5506            if (pkg.mAdoptPermissions != null) {
5507                // This package wants to adopt ownership of permissions from
5508                // another package.
5509                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5510                    final String origName = pkg.mAdoptPermissions.get(i);
5511                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5512                    if (orig != null) {
5513                        if (verifyPackageUpdateLPr(orig, pkg)) {
5514                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5515                                    + pkg.packageName);
5516                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5517                        }
5518                    }
5519                }
5520            }
5521        }
5522
5523        final String pkgName = pkg.packageName;
5524
5525        final long scanFileTime = scanFile.lastModified();
5526        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5527        pkg.applicationInfo.processName = fixProcessName(
5528                pkg.applicationInfo.packageName,
5529                pkg.applicationInfo.processName,
5530                pkg.applicationInfo.uid);
5531
5532        File dataPath;
5533        if (mPlatformPackage == pkg) {
5534            // The system package is special.
5535            dataPath = new File(Environment.getDataDirectory(), "system");
5536
5537            pkg.applicationInfo.dataDir = dataPath.getPath();
5538
5539        } else {
5540            // This is a normal package, need to make its data directory.
5541            dataPath = getDataPathForPackage(pkg.packageName, 0);
5542
5543            boolean uidError = false;
5544            if (dataPath.exists()) {
5545                int currentUid = 0;
5546                try {
5547                    StructStat stat = Os.stat(dataPath.getPath());
5548                    currentUid = stat.st_uid;
5549                } catch (ErrnoException e) {
5550                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5551                }
5552
5553                // If we have mismatched owners for the data path, we have a problem.
5554                if (currentUid != pkg.applicationInfo.uid) {
5555                    boolean recovered = false;
5556                    if (currentUid == 0) {
5557                        // The directory somehow became owned by root.  Wow.
5558                        // This is probably because the system was stopped while
5559                        // installd was in the middle of messing with its libs
5560                        // directory.  Ask installd to fix that.
5561                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5562                                pkg.applicationInfo.uid);
5563                        if (ret >= 0) {
5564                            recovered = true;
5565                            String msg = "Package " + pkg.packageName
5566                                    + " unexpectedly changed to uid 0; recovered to " +
5567                                    + pkg.applicationInfo.uid;
5568                            reportSettingsProblem(Log.WARN, msg);
5569                        }
5570                    }
5571                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5572                            || (scanFlags&SCAN_BOOTING) != 0)) {
5573                        // If this is a system app, we can at least delete its
5574                        // current data so the application will still work.
5575                        int ret = removeDataDirsLI(pkgName);
5576                        if (ret >= 0) {
5577                            // TODO: Kill the processes first
5578                            // Old data gone!
5579                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5580                                    ? "System package " : "Third party package ";
5581                            String msg = prefix + pkg.packageName
5582                                    + " has changed from uid: "
5583                                    + currentUid + " to "
5584                                    + pkg.applicationInfo.uid + "; old data erased";
5585                            reportSettingsProblem(Log.WARN, msg);
5586                            recovered = true;
5587
5588                            // And now re-install the app.
5589                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5590                                                   pkg.applicationInfo.seinfo);
5591                            if (ret == -1) {
5592                                // Ack should not happen!
5593                                msg = prefix + pkg.packageName
5594                                        + " could not have data directory re-created after delete.";
5595                                reportSettingsProblem(Log.WARN, msg);
5596                                throw new PackageManagerException(
5597                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5598                            }
5599                        }
5600                        if (!recovered) {
5601                            mHasSystemUidErrors = true;
5602                        }
5603                    } else if (!recovered) {
5604                        // If we allow this install to proceed, we will be broken.
5605                        // Abort, abort!
5606                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5607                                "scanPackageLI");
5608                    }
5609                    if (!recovered) {
5610                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5611                            + pkg.applicationInfo.uid + "/fs_"
5612                            + currentUid;
5613                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5614                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5615                        String msg = "Package " + pkg.packageName
5616                                + " has mismatched uid: "
5617                                + currentUid + " on disk, "
5618                                + pkg.applicationInfo.uid + " in settings";
5619                        // writer
5620                        synchronized (mPackages) {
5621                            mSettings.mReadMessages.append(msg);
5622                            mSettings.mReadMessages.append('\n');
5623                            uidError = true;
5624                            if (!pkgSetting.uidError) {
5625                                reportSettingsProblem(Log.ERROR, msg);
5626                            }
5627                        }
5628                    }
5629                }
5630                pkg.applicationInfo.dataDir = dataPath.getPath();
5631                if (mShouldRestoreconData) {
5632                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5633                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5634                                pkg.applicationInfo.uid);
5635                }
5636            } else {
5637                if (DEBUG_PACKAGE_SCANNING) {
5638                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5639                        Log.v(TAG, "Want this data dir: " + dataPath);
5640                }
5641                //invoke installer to do the actual installation
5642                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5643                                           pkg.applicationInfo.seinfo);
5644                if (ret < 0) {
5645                    // Error from installer
5646                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5647                            "Unable to create data dirs [errorCode=" + ret + "]");
5648                }
5649
5650                if (dataPath.exists()) {
5651                    pkg.applicationInfo.dataDir = dataPath.getPath();
5652                } else {
5653                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5654                    pkg.applicationInfo.dataDir = null;
5655                }
5656            }
5657
5658            pkgSetting.uidError = uidError;
5659        }
5660
5661        final String path = scanFile.getPath();
5662        final String codePath = pkg.applicationInfo.getCodePath();
5663        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5664        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5665            setBundledAppAbisAndRoots(pkg, pkgSetting);
5666
5667            // If we haven't found any native libraries for the app, check if it has
5668            // renderscript code. We'll need to force the app to 32 bit if it has
5669            // renderscript bitcode.
5670            if (pkg.applicationInfo.primaryCpuAbi == null
5671                    && pkg.applicationInfo.secondaryCpuAbi == null
5672                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5673                NativeLibraryHelper.Handle handle = null;
5674                try {
5675                    handle = NativeLibraryHelper.Handle.create(scanFile);
5676                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5677                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5678                    }
5679                } catch (IOException ioe) {
5680                    Slog.w(TAG, "Error scanning system app : " + ioe);
5681                } finally {
5682                    IoUtils.closeQuietly(handle);
5683                }
5684            }
5685
5686            setNativeLibraryPaths(pkg);
5687        } else {
5688            // TODO: We can probably be smarter about this stuff. For installed apps,
5689            // we can calculate this information at install time once and for all. For
5690            // system apps, we can probably assume that this information doesn't change
5691            // after the first boot scan. As things stand, we do lots of unnecessary work.
5692
5693            // Give ourselves some initial paths; we'll come back for another
5694            // pass once we've determined ABI below.
5695            setNativeLibraryPaths(pkg);
5696
5697            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5698            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5699            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5700
5701            NativeLibraryHelper.Handle handle = null;
5702            try {
5703                handle = NativeLibraryHelper.Handle.create(scanFile);
5704                // TODO(multiArch): This can be null for apps that didn't go through the
5705                // usual installation process. We can calculate it again, like we
5706                // do during install time.
5707                //
5708                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5709                // unnecessary.
5710                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5711
5712                // Null out the abis so that they can be recalculated.
5713                pkg.applicationInfo.primaryCpuAbi = null;
5714                pkg.applicationInfo.secondaryCpuAbi = null;
5715                if (isMultiArch(pkg.applicationInfo)) {
5716                    // Warn if we've set an abiOverride for multi-lib packages..
5717                    // By definition, we need to copy both 32 and 64 bit libraries for
5718                    // such packages.
5719                    if (pkg.cpuAbiOverride != null
5720                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5721                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5722                    }
5723
5724                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5725                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5726                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5727                        if (isAsec) {
5728                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5729                        } else {
5730                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5731                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5732                                    useIsaSpecificSubdirs);
5733                        }
5734                    }
5735
5736                    maybeThrowExceptionForMultiArchCopy(
5737                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5738
5739                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5740                        if (isAsec) {
5741                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5742                        } else {
5743                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5744                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5745                                    useIsaSpecificSubdirs);
5746                        }
5747                    }
5748
5749                    maybeThrowExceptionForMultiArchCopy(
5750                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5751
5752                    if (abi64 >= 0) {
5753                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5754                    }
5755
5756                    if (abi32 >= 0) {
5757                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5758                        if (abi64 >= 0) {
5759                            pkg.applicationInfo.secondaryCpuAbi = abi;
5760                        } else {
5761                            pkg.applicationInfo.primaryCpuAbi = abi;
5762                        }
5763                    }
5764                } else {
5765                    String[] abiList = (cpuAbiOverride != null) ?
5766                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5767
5768                    // Enable gross and lame hacks for apps that are built with old
5769                    // SDK tools. We must scan their APKs for renderscript bitcode and
5770                    // not launch them if it's present. Don't bother checking on devices
5771                    // that don't have 64 bit support.
5772                    boolean needsRenderScriptOverride = false;
5773                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5774                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5775                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5776                        needsRenderScriptOverride = true;
5777                    }
5778
5779                    final int copyRet;
5780                    if (isAsec) {
5781                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5782                    } else {
5783                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5784                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5785                    }
5786
5787                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5788                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5789                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5790                    }
5791
5792                    if (copyRet >= 0) {
5793                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5794                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5795                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5796                    } else if (needsRenderScriptOverride) {
5797                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5798                    }
5799                }
5800            } catch (IOException ioe) {
5801                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5802            } finally {
5803                IoUtils.closeQuietly(handle);
5804            }
5805
5806            // Now that we've calculated the ABIs and determined if it's an internal app,
5807            // we will go ahead and populate the nativeLibraryPath.
5808            setNativeLibraryPaths(pkg);
5809
5810            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5811            final int[] userIds = sUserManager.getUserIds();
5812            synchronized (mInstallLock) {
5813                // Create a native library symlink only if we have native libraries
5814                // and if the native libraries are 32 bit libraries. We do not provide
5815                // this symlink for 64 bit libraries.
5816                if (pkg.applicationInfo.primaryCpuAbi != null &&
5817                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5818                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5819                    for (int userId : userIds) {
5820                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5821                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5822                                    "Failed linking native library dir (user=" + userId + ")");
5823                        }
5824                    }
5825                }
5826            }
5827        }
5828
5829        // This is a special case for the "system" package, where the ABI is
5830        // dictated by the zygote configuration (and init.rc). We should keep track
5831        // of this ABI so that we can deal with "normal" applications that run under
5832        // the same UID correctly.
5833        if (mPlatformPackage == pkg) {
5834            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5835                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5836        }
5837
5838        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5839        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5840        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5841        // Copy the derived override back to the parsed package, so that we can
5842        // update the package settings accordingly.
5843        pkg.cpuAbiOverride = cpuAbiOverride;
5844
5845        if (DEBUG_ABI_SELECTION) {
5846            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5847                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5848                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5849        }
5850
5851        // Push the derived path down into PackageSettings so we know what to
5852        // clean up at uninstall time.
5853        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5854
5855        if (DEBUG_ABI_SELECTION) {
5856            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5857                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5858                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5859        }
5860
5861        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5862            // We don't do this here during boot because we can do it all
5863            // at once after scanning all existing packages.
5864            //
5865            // We also do this *before* we perform dexopt on this package, so that
5866            // we can avoid redundant dexopts, and also to make sure we've got the
5867            // code and package path correct.
5868            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5869                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5870        }
5871
5872        if ((scanFlags & SCAN_NO_DEX) == 0) {
5873            if (performDexOptLI(pkg, null /* instruction sets */, forceDex,
5874                    (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5875                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5876            }
5877        }
5878
5879        if (mFactoryTest && pkg.requestedPermissions.contains(
5880                android.Manifest.permission.FACTORY_TEST)) {
5881            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5882        }
5883
5884        ArrayList<PackageParser.Package> clientLibPkgs = null;
5885
5886        // writer
5887        synchronized (mPackages) {
5888            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5889                // Only system apps can add new shared libraries.
5890                if (pkg.libraryNames != null) {
5891                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5892                        String name = pkg.libraryNames.get(i);
5893                        boolean allowed = false;
5894                        if (isUpdatedSystemApp(pkg)) {
5895                            // New library entries can only be added through the
5896                            // system image.  This is important to get rid of a lot
5897                            // of nasty edge cases: for example if we allowed a non-
5898                            // system update of the app to add a library, then uninstalling
5899                            // the update would make the library go away, and assumptions
5900                            // we made such as through app install filtering would now
5901                            // have allowed apps on the device which aren't compatible
5902                            // with it.  Better to just have the restriction here, be
5903                            // conservative, and create many fewer cases that can negatively
5904                            // impact the user experience.
5905                            final PackageSetting sysPs = mSettings
5906                                    .getDisabledSystemPkgLPr(pkg.packageName);
5907                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5908                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5909                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5910                                        allowed = true;
5911                                        allowed = true;
5912                                        break;
5913                                    }
5914                                }
5915                            }
5916                        } else {
5917                            allowed = true;
5918                        }
5919                        if (allowed) {
5920                            if (!mSharedLibraries.containsKey(name)) {
5921                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5922                            } else if (!name.equals(pkg.packageName)) {
5923                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5924                                        + name + " already exists; skipping");
5925                            }
5926                        } else {
5927                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5928                                    + name + " that is not declared on system image; skipping");
5929                        }
5930                    }
5931                    if ((scanFlags&SCAN_BOOTING) == 0) {
5932                        // If we are not booting, we need to update any applications
5933                        // that are clients of our shared library.  If we are booting,
5934                        // this will all be done once the scan is complete.
5935                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5936                    }
5937                }
5938            }
5939        }
5940
5941        // We also need to dexopt any apps that are dependent on this library.  Note that
5942        // if these fail, we should abort the install since installing the library will
5943        // result in some apps being broken.
5944        if (clientLibPkgs != null) {
5945            if ((scanFlags & SCAN_NO_DEX) == 0) {
5946                for (int i = 0; i < clientLibPkgs.size(); i++) {
5947                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5948                    if (performDexOptLI(clientPkg, null /* instruction sets */, forceDex,
5949                            (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5950                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5951                                "scanPackageLI failed to dexopt clientLibPkgs");
5952                    }
5953                }
5954            }
5955        }
5956
5957        // Request the ActivityManager to kill the process(only for existing packages)
5958        // so that we do not end up in a confused state while the user is still using the older
5959        // version of the application while the new one gets installed.
5960        if ((scanFlags & SCAN_REPLACING) != 0) {
5961            killApplication(pkg.applicationInfo.packageName,
5962                        pkg.applicationInfo.uid, "update pkg");
5963        }
5964
5965        // Also need to kill any apps that are dependent on the library.
5966        if (clientLibPkgs != null) {
5967            for (int i=0; i<clientLibPkgs.size(); i++) {
5968                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5969                killApplication(clientPkg.applicationInfo.packageName,
5970                        clientPkg.applicationInfo.uid, "update lib");
5971            }
5972        }
5973
5974        // writer
5975        synchronized (mPackages) {
5976            // We don't expect installation to fail beyond this point
5977
5978            // Add the new setting to mSettings
5979            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5980            // Add the new setting to mPackages
5981            mPackages.put(pkg.applicationInfo.packageName, pkg);
5982            // Make sure we don't accidentally delete its data.
5983            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5984            while (iter.hasNext()) {
5985                PackageCleanItem item = iter.next();
5986                if (pkgName.equals(item.packageName)) {
5987                    iter.remove();
5988                }
5989            }
5990
5991            // Take care of first install / last update times.
5992            if (currentTime != 0) {
5993                if (pkgSetting.firstInstallTime == 0) {
5994                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5995                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5996                    pkgSetting.lastUpdateTime = currentTime;
5997                }
5998            } else if (pkgSetting.firstInstallTime == 0) {
5999                // We need *something*.  Take time time stamp of the file.
6000                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
6001            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
6002                if (scanFileTime != pkgSetting.timeStamp) {
6003                    // A package on the system image has changed; consider this
6004                    // to be an update.
6005                    pkgSetting.lastUpdateTime = scanFileTime;
6006                }
6007            }
6008
6009            // Add the package's KeySets to the global KeySetManagerService
6010            KeySetManagerService ksms = mSettings.mKeySetManagerService;
6011            try {
6012                // Old KeySetData no longer valid.
6013                ksms.removeAppKeySetDataLPw(pkg.packageName);
6014                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
6015                if (pkg.mKeySetMapping != null) {
6016                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
6017                            pkg.mKeySetMapping.entrySet()) {
6018                        if (entry.getValue() != null) {
6019                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
6020                                                          entry.getValue(), entry.getKey());
6021                        }
6022                    }
6023                    if (pkg.mUpgradeKeySets != null) {
6024                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
6025                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
6026                        }
6027                    }
6028                }
6029            } catch (NullPointerException e) {
6030                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
6031            } catch (IllegalArgumentException e) {
6032                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
6033            }
6034
6035            int N = pkg.providers.size();
6036            StringBuilder r = null;
6037            int i;
6038            for (i=0; i<N; i++) {
6039                PackageParser.Provider p = pkg.providers.get(i);
6040                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
6041                        p.info.processName, pkg.applicationInfo.uid);
6042                mProviders.addProvider(p);
6043                p.syncable = p.info.isSyncable;
6044                if (p.info.authority != null) {
6045                    String names[] = p.info.authority.split(";");
6046                    p.info.authority = null;
6047                    for (int j = 0; j < names.length; j++) {
6048                        if (j == 1 && p.syncable) {
6049                            // We only want the first authority for a provider to possibly be
6050                            // syncable, so if we already added this provider using a different
6051                            // authority clear the syncable flag. We copy the provider before
6052                            // changing it because the mProviders object contains a reference
6053                            // to a provider that we don't want to change.
6054                            // Only do this for the second authority since the resulting provider
6055                            // object can be the same for all future authorities for this provider.
6056                            p = new PackageParser.Provider(p);
6057                            p.syncable = false;
6058                        }
6059                        if (!mProvidersByAuthority.containsKey(names[j])) {
6060                            mProvidersByAuthority.put(names[j], p);
6061                            if (p.info.authority == null) {
6062                                p.info.authority = names[j];
6063                            } else {
6064                                p.info.authority = p.info.authority + ";" + names[j];
6065                            }
6066                            if (DEBUG_PACKAGE_SCANNING) {
6067                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
6068                                    Log.d(TAG, "Registered content provider: " + names[j]
6069                                            + ", className = " + p.info.name + ", isSyncable = "
6070                                            + p.info.isSyncable);
6071                            }
6072                        } else {
6073                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
6074                            Slog.w(TAG, "Skipping provider name " + names[j] +
6075                                    " (in package " + pkg.applicationInfo.packageName +
6076                                    "): name already used by "
6077                                    + ((other != null && other.getComponentName() != null)
6078                                            ? other.getComponentName().getPackageName() : "?"));
6079                        }
6080                    }
6081                }
6082                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6083                    if (r == null) {
6084                        r = new StringBuilder(256);
6085                    } else {
6086                        r.append(' ');
6087                    }
6088                    r.append(p.info.name);
6089                }
6090            }
6091            if (r != null) {
6092                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
6093            }
6094
6095            N = pkg.services.size();
6096            r = null;
6097            for (i=0; i<N; i++) {
6098                PackageParser.Service s = pkg.services.get(i);
6099                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
6100                        s.info.processName, pkg.applicationInfo.uid);
6101                mServices.addService(s);
6102                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6103                    if (r == null) {
6104                        r = new StringBuilder(256);
6105                    } else {
6106                        r.append(' ');
6107                    }
6108                    r.append(s.info.name);
6109                }
6110            }
6111            if (r != null) {
6112                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
6113            }
6114
6115            N = pkg.receivers.size();
6116            r = null;
6117            for (i=0; i<N; i++) {
6118                PackageParser.Activity a = pkg.receivers.get(i);
6119                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6120                        a.info.processName, pkg.applicationInfo.uid);
6121                mReceivers.addActivity(a, "receiver");
6122                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6123                    if (r == null) {
6124                        r = new StringBuilder(256);
6125                    } else {
6126                        r.append(' ');
6127                    }
6128                    r.append(a.info.name);
6129                }
6130            }
6131            if (r != null) {
6132                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6133            }
6134
6135            N = pkg.activities.size();
6136            r = null;
6137            for (i=0; i<N; i++) {
6138                PackageParser.Activity a = pkg.activities.get(i);
6139                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6140                        a.info.processName, pkg.applicationInfo.uid);
6141                mActivities.addActivity(a, "activity");
6142                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6143                    if (r == null) {
6144                        r = new StringBuilder(256);
6145                    } else {
6146                        r.append(' ');
6147                    }
6148                    r.append(a.info.name);
6149                }
6150            }
6151            if (r != null) {
6152                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6153            }
6154
6155            N = pkg.permissionGroups.size();
6156            r = null;
6157            for (i=0; i<N; i++) {
6158                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6159                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6160                if (cur == null) {
6161                    mPermissionGroups.put(pg.info.name, pg);
6162                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6163                        if (r == null) {
6164                            r = new StringBuilder(256);
6165                        } else {
6166                            r.append(' ');
6167                        }
6168                        r.append(pg.info.name);
6169                    }
6170                } else {
6171                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6172                            + pg.info.packageName + " ignored: original from "
6173                            + cur.info.packageName);
6174                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6175                        if (r == null) {
6176                            r = new StringBuilder(256);
6177                        } else {
6178                            r.append(' ');
6179                        }
6180                        r.append("DUP:");
6181                        r.append(pg.info.name);
6182                    }
6183                }
6184            }
6185            if (r != null) {
6186                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6187            }
6188
6189            N = pkg.permissions.size();
6190            r = null;
6191            for (i=0; i<N; i++) {
6192                PackageParser.Permission p = pkg.permissions.get(i);
6193                ArrayMap<String, BasePermission> permissionMap =
6194                        p.tree ? mSettings.mPermissionTrees
6195                        : mSettings.mPermissions;
6196                p.group = mPermissionGroups.get(p.info.group);
6197                if (p.info.group == null || p.group != null) {
6198                    BasePermission bp = permissionMap.get(p.info.name);
6199
6200                    // Allow system apps to redefine non-system permissions
6201                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6202                        final boolean currentOwnerIsSystem = (bp.perm != null
6203                                && isSystemApp(bp.perm.owner));
6204                        if (isSystemApp(p.owner)) {
6205                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6206                                // It's a built-in permission and no owner, take ownership now
6207                                bp.packageSetting = pkgSetting;
6208                                bp.perm = p;
6209                                bp.uid = pkg.applicationInfo.uid;
6210                                bp.sourcePackage = p.info.packageName;
6211                            } else if (!currentOwnerIsSystem) {
6212                                String msg = "New decl " + p.owner + " of permission  "
6213                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6214                                reportSettingsProblem(Log.WARN, msg);
6215                                bp = null;
6216                            }
6217                        }
6218                    }
6219
6220                    if (bp == null) {
6221                        bp = new BasePermission(p.info.name, p.info.packageName,
6222                                BasePermission.TYPE_NORMAL);
6223                        permissionMap.put(p.info.name, bp);
6224                    }
6225
6226                    if (bp.perm == null) {
6227                        if (bp.sourcePackage == null
6228                                || bp.sourcePackage.equals(p.info.packageName)) {
6229                            BasePermission tree = findPermissionTreeLP(p.info.name);
6230                            if (tree == null
6231                                    || tree.sourcePackage.equals(p.info.packageName)) {
6232                                bp.packageSetting = pkgSetting;
6233                                bp.perm = p;
6234                                bp.uid = pkg.applicationInfo.uid;
6235                                bp.sourcePackage = p.info.packageName;
6236                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6237                                    if (r == null) {
6238                                        r = new StringBuilder(256);
6239                                    } else {
6240                                        r.append(' ');
6241                                    }
6242                                    r.append(p.info.name);
6243                                }
6244                            } else {
6245                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6246                                        + p.info.packageName + " ignored: base tree "
6247                                        + tree.name + " is from package "
6248                                        + tree.sourcePackage);
6249                            }
6250                        } else {
6251                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6252                                    + p.info.packageName + " ignored: original from "
6253                                    + bp.sourcePackage);
6254                        }
6255                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6256                        if (r == null) {
6257                            r = new StringBuilder(256);
6258                        } else {
6259                            r.append(' ');
6260                        }
6261                        r.append("DUP:");
6262                        r.append(p.info.name);
6263                    }
6264                    if (bp.perm == p) {
6265                        bp.protectionLevel = p.info.protectionLevel;
6266                    }
6267                } else {
6268                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6269                            + p.info.packageName + " ignored: no group "
6270                            + p.group);
6271                }
6272            }
6273            if (r != null) {
6274                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6275            }
6276
6277            N = pkg.instrumentation.size();
6278            r = null;
6279            for (i=0; i<N; i++) {
6280                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6281                a.info.packageName = pkg.applicationInfo.packageName;
6282                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6283                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6284                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6285                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6286                a.info.dataDir = pkg.applicationInfo.dataDir;
6287
6288                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6289                // need other information about the application, like the ABI and what not ?
6290                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6291                mInstrumentation.put(a.getComponentName(), a);
6292                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6293                    if (r == null) {
6294                        r = new StringBuilder(256);
6295                    } else {
6296                        r.append(' ');
6297                    }
6298                    r.append(a.info.name);
6299                }
6300            }
6301            if (r != null) {
6302                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6303            }
6304
6305            if (pkg.protectedBroadcasts != null) {
6306                N = pkg.protectedBroadcasts.size();
6307                for (i=0; i<N; i++) {
6308                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6309                }
6310            }
6311
6312            pkgSetting.setTimeStamp(scanFileTime);
6313
6314            // Create idmap files for pairs of (packages, overlay packages).
6315            // Note: "android", ie framework-res.apk, is handled by native layers.
6316            if (pkg.mOverlayTarget != null) {
6317                // This is an overlay package.
6318                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6319                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6320                        mOverlays.put(pkg.mOverlayTarget,
6321                                new ArrayMap<String, PackageParser.Package>());
6322                    }
6323                    ArrayMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6324                    map.put(pkg.packageName, pkg);
6325                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6326                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6327                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6328                                "scanPackageLI failed to createIdmap");
6329                    }
6330                }
6331            } else if (mOverlays.containsKey(pkg.packageName) &&
6332                    !pkg.packageName.equals("android")) {
6333                // This is a regular package, with one or more known overlay packages.
6334                createIdmapsForPackageLI(pkg);
6335            }
6336        }
6337
6338        return pkg;
6339    }
6340
6341    /**
6342     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6343     * i.e, so that all packages can be run inside a single process if required.
6344     *
6345     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6346     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6347     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6348     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6349     * updating a package that belongs to a shared user.
6350     *
6351     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6352     * adds unnecessary complexity.
6353     */
6354    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6355            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6356        String requiredInstructionSet = null;
6357        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6358            requiredInstructionSet = VMRuntime.getInstructionSet(
6359                     scannedPackage.applicationInfo.primaryCpuAbi);
6360        }
6361
6362        PackageSetting requirer = null;
6363        for (PackageSetting ps : packagesForUser) {
6364            // If packagesForUser contains scannedPackage, we skip it. This will happen
6365            // when scannedPackage is an update of an existing package. Without this check,
6366            // we will never be able to change the ABI of any package belonging to a shared
6367            // user, even if it's compatible with other packages.
6368            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6369                if (ps.primaryCpuAbiString == null) {
6370                    continue;
6371                }
6372
6373                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6374                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6375                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6376                    // this but there's not much we can do.
6377                    String errorMessage = "Instruction set mismatch, "
6378                            + ((requirer == null) ? "[caller]" : requirer)
6379                            + " requires " + requiredInstructionSet + " whereas " + ps
6380                            + " requires " + instructionSet;
6381                    Slog.w(TAG, errorMessage);
6382                }
6383
6384                if (requiredInstructionSet == null) {
6385                    requiredInstructionSet = instructionSet;
6386                    requirer = ps;
6387                }
6388            }
6389        }
6390
6391        if (requiredInstructionSet != null) {
6392            String adjustedAbi;
6393            if (requirer != null) {
6394                // requirer != null implies that either scannedPackage was null or that scannedPackage
6395                // did not require an ABI, in which case we have to adjust scannedPackage to match
6396                // the ABI of the set (which is the same as requirer's ABI)
6397                adjustedAbi = requirer.primaryCpuAbiString;
6398                if (scannedPackage != null) {
6399                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6400                }
6401            } else {
6402                // requirer == null implies that we're updating all ABIs in the set to
6403                // match scannedPackage.
6404                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6405            }
6406
6407            for (PackageSetting ps : packagesForUser) {
6408                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6409                    if (ps.primaryCpuAbiString != null) {
6410                        continue;
6411                    }
6412
6413                    ps.primaryCpuAbiString = adjustedAbi;
6414                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6415                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6416                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6417
6418                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6419                                deferDexOpt, true) == DEX_OPT_FAILED) {
6420                            ps.primaryCpuAbiString = null;
6421                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6422                            return;
6423                        } else {
6424                            mInstaller.rmdex(ps.codePathString,
6425                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6426                        }
6427                    }
6428                }
6429            }
6430        }
6431    }
6432
6433    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6434        synchronized (mPackages) {
6435            mResolverReplaced = true;
6436            // Set up information for custom user intent resolution activity.
6437            mResolveActivity.applicationInfo = pkg.applicationInfo;
6438            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6439            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6440            mResolveActivity.processName = null;
6441            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6442            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6443                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6444            mResolveActivity.theme = 0;
6445            mResolveActivity.exported = true;
6446            mResolveActivity.enabled = true;
6447            mResolveInfo.activityInfo = mResolveActivity;
6448            mResolveInfo.priority = 0;
6449            mResolveInfo.preferredOrder = 0;
6450            mResolveInfo.match = 0;
6451            mResolveComponentName = mCustomResolverComponentName;
6452            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6453                    mResolveComponentName);
6454        }
6455    }
6456
6457    private static String calculateBundledApkRoot(final String codePathString) {
6458        final File codePath = new File(codePathString);
6459        final File codeRoot;
6460        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6461            codeRoot = Environment.getRootDirectory();
6462        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6463            codeRoot = Environment.getOemDirectory();
6464        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6465            codeRoot = Environment.getVendorDirectory();
6466        } else {
6467            // Unrecognized code path; take its top real segment as the apk root:
6468            // e.g. /something/app/blah.apk => /something
6469            try {
6470                File f = codePath.getCanonicalFile();
6471                File parent = f.getParentFile();    // non-null because codePath is a file
6472                File tmp;
6473                while ((tmp = parent.getParentFile()) != null) {
6474                    f = parent;
6475                    parent = tmp;
6476                }
6477                codeRoot = f;
6478                Slog.w(TAG, "Unrecognized code path "
6479                        + codePath + " - using " + codeRoot);
6480            } catch (IOException e) {
6481                // Can't canonicalize the code path -- shenanigans?
6482                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6483                return Environment.getRootDirectory().getPath();
6484            }
6485        }
6486        return codeRoot.getPath();
6487    }
6488
6489    /**
6490     * Derive and set the location of native libraries for the given package,
6491     * which varies depending on where and how the package was installed.
6492     */
6493    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6494        final ApplicationInfo info = pkg.applicationInfo;
6495        final String codePath = pkg.codePath;
6496        final File codeFile = new File(codePath);
6497        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6498        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6499
6500        info.nativeLibraryRootDir = null;
6501        info.nativeLibraryRootRequiresIsa = false;
6502        info.nativeLibraryDir = null;
6503        info.secondaryNativeLibraryDir = null;
6504
6505        if (isApkFile(codeFile)) {
6506            // Monolithic install
6507            if (bundledApp) {
6508                // If "/system/lib64/apkname" exists, assume that is the per-package
6509                // native library directory to use; otherwise use "/system/lib/apkname".
6510                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6511                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6512                        getPrimaryInstructionSet(info));
6513
6514                // This is a bundled system app so choose the path based on the ABI.
6515                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6516                // is just the default path.
6517                final String apkName = deriveCodePathName(codePath);
6518                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6519                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6520                        apkName).getAbsolutePath();
6521
6522                if (info.secondaryCpuAbi != null) {
6523                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6524                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6525                            secondaryLibDir, apkName).getAbsolutePath();
6526                }
6527            } else if (asecApp) {
6528                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6529                        .getAbsolutePath();
6530            } else {
6531                final String apkName = deriveCodePathName(codePath);
6532                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6533                        .getAbsolutePath();
6534            }
6535
6536            info.nativeLibraryRootRequiresIsa = false;
6537            info.nativeLibraryDir = info.nativeLibraryRootDir;
6538        } else {
6539            // Cluster install
6540            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6541            info.nativeLibraryRootRequiresIsa = true;
6542
6543            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6544                    getPrimaryInstructionSet(info)).getAbsolutePath();
6545
6546            if (info.secondaryCpuAbi != null) {
6547                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6548                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6549            }
6550        }
6551    }
6552
6553    /**
6554     * Calculate the abis and roots for a bundled app. These can uniquely
6555     * be determined from the contents of the system partition, i.e whether
6556     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6557     * of this information, and instead assume that the system was built
6558     * sensibly.
6559     */
6560    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6561                                           PackageSetting pkgSetting) {
6562        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6563
6564        // If "/system/lib64/apkname" exists, assume that is the per-package
6565        // native library directory to use; otherwise use "/system/lib/apkname".
6566        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6567        setBundledAppAbi(pkg, apkRoot, apkName);
6568        // pkgSetting might be null during rescan following uninstall of updates
6569        // to a bundled app, so accommodate that possibility.  The settings in
6570        // that case will be established later from the parsed package.
6571        //
6572        // If the settings aren't null, sync them up with what we've just derived.
6573        // note that apkRoot isn't stored in the package settings.
6574        if (pkgSetting != null) {
6575            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6576            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6577        }
6578    }
6579
6580    /**
6581     * Deduces the ABI of a bundled app and sets the relevant fields on the
6582     * parsed pkg object.
6583     *
6584     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6585     *        under which system libraries are installed.
6586     * @param apkName the name of the installed package.
6587     */
6588    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6589        final File codeFile = new File(pkg.codePath);
6590
6591        final boolean has64BitLibs;
6592        final boolean has32BitLibs;
6593        if (isApkFile(codeFile)) {
6594            // Monolithic install
6595            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6596            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6597        } else {
6598            // Cluster install
6599            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6600            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6601                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6602                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6603                has64BitLibs = (new File(rootDir, isa)).exists();
6604            } else {
6605                has64BitLibs = false;
6606            }
6607            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6608                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6609                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6610                has32BitLibs = (new File(rootDir, isa)).exists();
6611            } else {
6612                has32BitLibs = false;
6613            }
6614        }
6615
6616        if (has64BitLibs && !has32BitLibs) {
6617            // The package has 64 bit libs, but not 32 bit libs. Its primary
6618            // ABI should be 64 bit. We can safely assume here that the bundled
6619            // native libraries correspond to the most preferred ABI in the list.
6620
6621            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6622            pkg.applicationInfo.secondaryCpuAbi = null;
6623        } else if (has32BitLibs && !has64BitLibs) {
6624            // The package has 32 bit libs but not 64 bit libs. Its primary
6625            // ABI should be 32 bit.
6626
6627            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6628            pkg.applicationInfo.secondaryCpuAbi = null;
6629        } else if (has32BitLibs && has64BitLibs) {
6630            // The application has both 64 and 32 bit bundled libraries. We check
6631            // here that the app declares multiArch support, and warn if it doesn't.
6632            //
6633            // We will be lenient here and record both ABIs. The primary will be the
6634            // ABI that's higher on the list, i.e, a device that's configured to prefer
6635            // 64 bit apps will see a 64 bit primary ABI,
6636
6637            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6638                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6639            }
6640
6641            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6642                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6643                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6644            } else {
6645                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6646                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6647            }
6648        } else {
6649            pkg.applicationInfo.primaryCpuAbi = null;
6650            pkg.applicationInfo.secondaryCpuAbi = null;
6651        }
6652    }
6653
6654    private void killApplication(String pkgName, int appId, String reason) {
6655        // Request the ActivityManager to kill the process(only for existing packages)
6656        // so that we do not end up in a confused state while the user is still using the older
6657        // version of the application while the new one gets installed.
6658        IActivityManager am = ActivityManagerNative.getDefault();
6659        if (am != null) {
6660            try {
6661                am.killApplicationWithAppId(pkgName, appId, reason);
6662            } catch (RemoteException e) {
6663            }
6664        }
6665    }
6666
6667    void removePackageLI(PackageSetting ps, boolean chatty) {
6668        if (DEBUG_INSTALL) {
6669            if (chatty)
6670                Log.d(TAG, "Removing package " + ps.name);
6671        }
6672
6673        // writer
6674        synchronized (mPackages) {
6675            mPackages.remove(ps.name);
6676            final PackageParser.Package pkg = ps.pkg;
6677            if (pkg != null) {
6678                cleanPackageDataStructuresLILPw(pkg, chatty);
6679            }
6680        }
6681    }
6682
6683    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6684        if (DEBUG_INSTALL) {
6685            if (chatty)
6686                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6687        }
6688
6689        // writer
6690        synchronized (mPackages) {
6691            mPackages.remove(pkg.applicationInfo.packageName);
6692            cleanPackageDataStructuresLILPw(pkg, chatty);
6693        }
6694    }
6695
6696    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6697        int N = pkg.providers.size();
6698        StringBuilder r = null;
6699        int i;
6700        for (i=0; i<N; i++) {
6701            PackageParser.Provider p = pkg.providers.get(i);
6702            mProviders.removeProvider(p);
6703            if (p.info.authority == null) {
6704
6705                /* There was another ContentProvider with this authority when
6706                 * this app was installed so this authority is null,
6707                 * Ignore it as we don't have to unregister the provider.
6708                 */
6709                continue;
6710            }
6711            String names[] = p.info.authority.split(";");
6712            for (int j = 0; j < names.length; j++) {
6713                if (mProvidersByAuthority.get(names[j]) == p) {
6714                    mProvidersByAuthority.remove(names[j]);
6715                    if (DEBUG_REMOVE) {
6716                        if (chatty)
6717                            Log.d(TAG, "Unregistered content provider: " + names[j]
6718                                    + ", className = " + p.info.name + ", isSyncable = "
6719                                    + p.info.isSyncable);
6720                    }
6721                }
6722            }
6723            if (DEBUG_REMOVE && chatty) {
6724                if (r == null) {
6725                    r = new StringBuilder(256);
6726                } else {
6727                    r.append(' ');
6728                }
6729                r.append(p.info.name);
6730            }
6731        }
6732        if (r != null) {
6733            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6734        }
6735
6736        N = pkg.services.size();
6737        r = null;
6738        for (i=0; i<N; i++) {
6739            PackageParser.Service s = pkg.services.get(i);
6740            mServices.removeService(s);
6741            if (chatty) {
6742                if (r == null) {
6743                    r = new StringBuilder(256);
6744                } else {
6745                    r.append(' ');
6746                }
6747                r.append(s.info.name);
6748            }
6749        }
6750        if (r != null) {
6751            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6752        }
6753
6754        N = pkg.receivers.size();
6755        r = null;
6756        for (i=0; i<N; i++) {
6757            PackageParser.Activity a = pkg.receivers.get(i);
6758            mReceivers.removeActivity(a, "receiver");
6759            if (DEBUG_REMOVE && chatty) {
6760                if (r == null) {
6761                    r = new StringBuilder(256);
6762                } else {
6763                    r.append(' ');
6764                }
6765                r.append(a.info.name);
6766            }
6767        }
6768        if (r != null) {
6769            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6770        }
6771
6772        N = pkg.activities.size();
6773        r = null;
6774        for (i=0; i<N; i++) {
6775            PackageParser.Activity a = pkg.activities.get(i);
6776            mActivities.removeActivity(a, "activity");
6777            if (DEBUG_REMOVE && chatty) {
6778                if (r == null) {
6779                    r = new StringBuilder(256);
6780                } else {
6781                    r.append(' ');
6782                }
6783                r.append(a.info.name);
6784            }
6785        }
6786        if (r != null) {
6787            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6788        }
6789
6790        N = pkg.permissions.size();
6791        r = null;
6792        for (i=0; i<N; i++) {
6793            PackageParser.Permission p = pkg.permissions.get(i);
6794            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6795            if (bp == null) {
6796                bp = mSettings.mPermissionTrees.get(p.info.name);
6797            }
6798            if (bp != null && bp.perm == p) {
6799                bp.perm = null;
6800                if (DEBUG_REMOVE && chatty) {
6801                    if (r == null) {
6802                        r = new StringBuilder(256);
6803                    } else {
6804                        r.append(' ');
6805                    }
6806                    r.append(p.info.name);
6807                }
6808            }
6809            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6810                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6811                if (appOpPerms != null) {
6812                    appOpPerms.remove(pkg.packageName);
6813                }
6814            }
6815        }
6816        if (r != null) {
6817            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6818        }
6819
6820        N = pkg.requestedPermissions.size();
6821        r = null;
6822        for (i=0; i<N; i++) {
6823            String perm = pkg.requestedPermissions.get(i);
6824            BasePermission bp = mSettings.mPermissions.get(perm);
6825            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6826                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6827                if (appOpPerms != null) {
6828                    appOpPerms.remove(pkg.packageName);
6829                    if (appOpPerms.isEmpty()) {
6830                        mAppOpPermissionPackages.remove(perm);
6831                    }
6832                }
6833            }
6834        }
6835        if (r != null) {
6836            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6837        }
6838
6839        N = pkg.instrumentation.size();
6840        r = null;
6841        for (i=0; i<N; i++) {
6842            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6843            mInstrumentation.remove(a.getComponentName());
6844            if (DEBUG_REMOVE && chatty) {
6845                if (r == null) {
6846                    r = new StringBuilder(256);
6847                } else {
6848                    r.append(' ');
6849                }
6850                r.append(a.info.name);
6851            }
6852        }
6853        if (r != null) {
6854            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6855        }
6856
6857        r = null;
6858        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6859            // Only system apps can hold shared libraries.
6860            if (pkg.libraryNames != null) {
6861                for (i=0; i<pkg.libraryNames.size(); i++) {
6862                    String name = pkg.libraryNames.get(i);
6863                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6864                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6865                        mSharedLibraries.remove(name);
6866                        if (DEBUG_REMOVE && chatty) {
6867                            if (r == null) {
6868                                r = new StringBuilder(256);
6869                            } else {
6870                                r.append(' ');
6871                            }
6872                            r.append(name);
6873                        }
6874                    }
6875                }
6876            }
6877        }
6878        if (r != null) {
6879            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6880        }
6881    }
6882
6883    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6884        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6885            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6886                return true;
6887            }
6888        }
6889        return false;
6890    }
6891
6892    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6893    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6894    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6895
6896    private void updatePermissionsLPw(String changingPkg,
6897            PackageParser.Package pkgInfo, int flags) {
6898        // Make sure there are no dangling permission trees.
6899        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6900        while (it.hasNext()) {
6901            final BasePermission bp = it.next();
6902            if (bp.packageSetting == null) {
6903                // We may not yet have parsed the package, so just see if
6904                // we still know about its settings.
6905                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6906            }
6907            if (bp.packageSetting == null) {
6908                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6909                        + " from package " + bp.sourcePackage);
6910                it.remove();
6911            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6912                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6913                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6914                            + " from package " + bp.sourcePackage);
6915                    flags |= UPDATE_PERMISSIONS_ALL;
6916                    it.remove();
6917                }
6918            }
6919        }
6920
6921        // Make sure all dynamic permissions have been assigned to a package,
6922        // and make sure there are no dangling permissions.
6923        it = mSettings.mPermissions.values().iterator();
6924        while (it.hasNext()) {
6925            final BasePermission bp = it.next();
6926            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6927                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6928                        + bp.name + " pkg=" + bp.sourcePackage
6929                        + " info=" + bp.pendingInfo);
6930                if (bp.packageSetting == null && bp.pendingInfo != null) {
6931                    final BasePermission tree = findPermissionTreeLP(bp.name);
6932                    if (tree != null && tree.perm != null) {
6933                        bp.packageSetting = tree.packageSetting;
6934                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6935                                new PermissionInfo(bp.pendingInfo));
6936                        bp.perm.info.packageName = tree.perm.info.packageName;
6937                        bp.perm.info.name = bp.name;
6938                        bp.uid = tree.uid;
6939                    }
6940                }
6941            }
6942            if (bp.packageSetting == null) {
6943                // We may not yet have parsed the package, so just see if
6944                // we still know about its settings.
6945                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6946            }
6947            if (bp.packageSetting == null) {
6948                Slog.w(TAG, "Removing dangling permission: " + bp.name
6949                        + " from package " + bp.sourcePackage);
6950                it.remove();
6951            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6952                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6953                    Slog.i(TAG, "Removing old permission: " + bp.name
6954                            + " from package " + bp.sourcePackage);
6955                    flags |= UPDATE_PERMISSIONS_ALL;
6956                    it.remove();
6957                }
6958            }
6959        }
6960
6961        // Now update the permissions for all packages, in particular
6962        // replace the granted permissions of the system packages.
6963        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6964            for (PackageParser.Package pkg : mPackages.values()) {
6965                if (pkg != pkgInfo) {
6966                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6967                            changingPkg);
6968                }
6969            }
6970        }
6971
6972        if (pkgInfo != null) {
6973            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6974        }
6975    }
6976
6977    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6978            String packageOfInterest) {
6979        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6980        if (ps == null) {
6981            return;
6982        }
6983        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6984        ArraySet<String> origPermissions = gp.grantedPermissions;
6985        boolean changedPermission = false;
6986
6987        if (replace) {
6988            ps.permissionsFixed = false;
6989            if (gp == ps) {
6990                origPermissions = new ArraySet<String>(gp.grantedPermissions);
6991                gp.grantedPermissions.clear();
6992                gp.gids = mGlobalGids;
6993            }
6994        }
6995
6996        if (gp.gids == null) {
6997            gp.gids = mGlobalGids;
6998        }
6999
7000        final int N = pkg.requestedPermissions.size();
7001        for (int i=0; i<N; i++) {
7002            final String name = pkg.requestedPermissions.get(i);
7003            final boolean required = pkg.requestedPermissionsRequired.get(i);
7004            final BasePermission bp = mSettings.mPermissions.get(name);
7005            if (DEBUG_INSTALL) {
7006                if (gp != ps) {
7007                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
7008                }
7009            }
7010
7011            if (bp == null || bp.packageSetting == null) {
7012                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7013                    Slog.w(TAG, "Unknown permission " + name
7014                            + " in package " + pkg.packageName);
7015                }
7016                continue;
7017            }
7018
7019            final String perm = bp.name;
7020            boolean allowed;
7021            boolean allowedSig = false;
7022            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
7023                // Keep track of app op permissions.
7024                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
7025                if (pkgs == null) {
7026                    pkgs = new ArraySet<>();
7027                    mAppOpPermissionPackages.put(bp.name, pkgs);
7028                }
7029                pkgs.add(pkg.packageName);
7030            }
7031            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
7032            if (level == PermissionInfo.PROTECTION_NORMAL
7033                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
7034                // We grant a normal or dangerous permission if any of the following
7035                // are true:
7036                // 1) The permission is required
7037                // 2) The permission is optional, but was granted in the past
7038                // 3) The permission is optional, but was requested by an
7039                //    app in /system (not /data)
7040                //
7041                // Otherwise, reject the permission.
7042                allowed = (required || origPermissions.contains(perm)
7043                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
7044            } else if (bp.packageSetting == null) {
7045                // This permission is invalid; skip it.
7046                allowed = false;
7047            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
7048                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
7049                if (allowed) {
7050                    allowedSig = true;
7051                }
7052            } else {
7053                allowed = false;
7054            }
7055            if (DEBUG_INSTALL) {
7056                if (gp != ps) {
7057                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
7058                }
7059            }
7060            if (allowed) {
7061                if (!isSystemApp(ps) && ps.permissionsFixed) {
7062                    // If this is an existing, non-system package, then
7063                    // we can't add any new permissions to it.
7064                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
7065                        // Except...  if this is a permission that was added
7066                        // to the platform (note: need to only do this when
7067                        // updating the platform).
7068                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
7069                    }
7070                }
7071                if (allowed) {
7072                    if (!gp.grantedPermissions.contains(perm)) {
7073                        changedPermission = true;
7074                        gp.grantedPermissions.add(perm);
7075                        gp.gids = appendInts(gp.gids, bp.gids);
7076                    } else if (!ps.haveGids) {
7077                        gp.gids = appendInts(gp.gids, bp.gids);
7078                    }
7079                } else {
7080                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7081                        Slog.w(TAG, "Not granting permission " + perm
7082                                + " to package " + pkg.packageName
7083                                + " because it was previously installed without");
7084                    }
7085                }
7086            } else {
7087                if (gp.grantedPermissions.remove(perm)) {
7088                    changedPermission = true;
7089                    gp.gids = removeInts(gp.gids, bp.gids);
7090                    Slog.i(TAG, "Un-granting permission " + perm
7091                            + " from package " + pkg.packageName
7092                            + " (protectionLevel=" + bp.protectionLevel
7093                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7094                            + ")");
7095                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
7096                    // Don't print warning for app op permissions, since it is fine for them
7097                    // not to be granted, there is a UI for the user to decide.
7098                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7099                        Slog.w(TAG, "Not granting permission " + perm
7100                                + " to package " + pkg.packageName
7101                                + " (protectionLevel=" + bp.protectionLevel
7102                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7103                                + ")");
7104                    }
7105                }
7106            }
7107        }
7108
7109        if ((changedPermission || replace) && !ps.permissionsFixed &&
7110                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
7111            // This is the first that we have heard about this package, so the
7112            // permissions we have now selected are fixed until explicitly
7113            // changed.
7114            ps.permissionsFixed = true;
7115        }
7116        ps.haveGids = true;
7117    }
7118
7119    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7120        boolean allowed = false;
7121        final int NP = PackageParser.NEW_PERMISSIONS.length;
7122        for (int ip=0; ip<NP; ip++) {
7123            final PackageParser.NewPermissionInfo npi
7124                    = PackageParser.NEW_PERMISSIONS[ip];
7125            if (npi.name.equals(perm)
7126                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7127                allowed = true;
7128                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7129                        + pkg.packageName);
7130                break;
7131            }
7132        }
7133        return allowed;
7134    }
7135
7136    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7137                                          BasePermission bp, ArraySet<String> origPermissions) {
7138        boolean allowed;
7139        allowed = (compareSignatures(
7140                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7141                        == PackageManager.SIGNATURE_MATCH)
7142                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7143                        == PackageManager.SIGNATURE_MATCH);
7144        if (!allowed && (bp.protectionLevel
7145                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7146            if (isSystemApp(pkg)) {
7147                // For updated system applications, a system permission
7148                // is granted only if it had been defined by the original application.
7149                if (isUpdatedSystemApp(pkg)) {
7150                    final PackageSetting sysPs = mSettings
7151                            .getDisabledSystemPkgLPr(pkg.packageName);
7152                    final GrantedPermissions origGp = sysPs.sharedUser != null
7153                            ? sysPs.sharedUser : sysPs;
7154
7155                    if (origGp.grantedPermissions.contains(perm)) {
7156                        // If the original was granted this permission, we take
7157                        // that grant decision as read and propagate it to the
7158                        // update.
7159                        allowed = true;
7160                    } else {
7161                        // The system apk may have been updated with an older
7162                        // version of the one on the data partition, but which
7163                        // granted a new system permission that it didn't have
7164                        // before.  In this case we do want to allow the app to
7165                        // now get the new permission if the ancestral apk is
7166                        // privileged to get it.
7167                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7168                            for (int j=0;
7169                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7170                                if (perm.equals(
7171                                        sysPs.pkg.requestedPermissions.get(j))) {
7172                                    allowed = true;
7173                                    break;
7174                                }
7175                            }
7176                        }
7177                    }
7178                } else {
7179                    allowed = isPrivilegedApp(pkg);
7180                }
7181            }
7182        }
7183        if (!allowed && (bp.protectionLevel
7184                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7185            // For development permissions, a development permission
7186            // is granted only if it was already granted.
7187            allowed = origPermissions.contains(perm);
7188        }
7189        return allowed;
7190    }
7191
7192    final class ActivityIntentResolver
7193            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7194        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7195                boolean defaultOnly, int userId) {
7196            if (!sUserManager.exists(userId)) return null;
7197            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7198            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7199        }
7200
7201        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7202                int userId) {
7203            if (!sUserManager.exists(userId)) return null;
7204            mFlags = flags;
7205            return super.queryIntent(intent, resolvedType,
7206                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7207        }
7208
7209        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7210                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7211            if (!sUserManager.exists(userId)) return null;
7212            if (packageActivities == null) {
7213                return null;
7214            }
7215            mFlags = flags;
7216            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7217            final int N = packageActivities.size();
7218            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7219                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7220
7221            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7222            for (int i = 0; i < N; ++i) {
7223                intentFilters = packageActivities.get(i).intents;
7224                if (intentFilters != null && intentFilters.size() > 0) {
7225                    PackageParser.ActivityIntentInfo[] array =
7226                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7227                    intentFilters.toArray(array);
7228                    listCut.add(array);
7229                }
7230            }
7231            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7232        }
7233
7234        public final void addActivity(PackageParser.Activity a, String type) {
7235            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7236            mActivities.put(a.getComponentName(), a);
7237            if (DEBUG_SHOW_INFO)
7238                Log.v(
7239                TAG, "  " + type + " " +
7240                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7241            if (DEBUG_SHOW_INFO)
7242                Log.v(TAG, "    Class=" + a.info.name);
7243            final int NI = a.intents.size();
7244            for (int j=0; j<NI; j++) {
7245                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7246                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7247                    intent.setPriority(0);
7248                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7249                            + a.className + " with priority > 0, forcing to 0");
7250                }
7251                if (DEBUG_SHOW_INFO) {
7252                    Log.v(TAG, "    IntentFilter:");
7253                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7254                }
7255                if (!intent.debugCheck()) {
7256                    Log.w(TAG, "==> For Activity " + a.info.name);
7257                }
7258                addFilter(intent);
7259            }
7260        }
7261
7262        public final void removeActivity(PackageParser.Activity a, String type) {
7263            mActivities.remove(a.getComponentName());
7264            if (DEBUG_SHOW_INFO) {
7265                Log.v(TAG, "  " + type + " "
7266                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7267                                : a.info.name) + ":");
7268                Log.v(TAG, "    Class=" + a.info.name);
7269            }
7270            final int NI = a.intents.size();
7271            for (int j=0; j<NI; j++) {
7272                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7273                if (DEBUG_SHOW_INFO) {
7274                    Log.v(TAG, "    IntentFilter:");
7275                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7276                }
7277                removeFilter(intent);
7278            }
7279        }
7280
7281        @Override
7282        protected boolean allowFilterResult(
7283                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7284            ActivityInfo filterAi = filter.activity.info;
7285            for (int i=dest.size()-1; i>=0; i--) {
7286                ActivityInfo destAi = dest.get(i).activityInfo;
7287                if (destAi.name == filterAi.name
7288                        && destAi.packageName == filterAi.packageName) {
7289                    return false;
7290                }
7291            }
7292            return true;
7293        }
7294
7295        @Override
7296        protected ActivityIntentInfo[] newArray(int size) {
7297            return new ActivityIntentInfo[size];
7298        }
7299
7300        @Override
7301        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7302            if (!sUserManager.exists(userId)) return true;
7303            PackageParser.Package p = filter.activity.owner;
7304            if (p != null) {
7305                PackageSetting ps = (PackageSetting)p.mExtras;
7306                if (ps != null) {
7307                    // System apps are never considered stopped for purposes of
7308                    // filtering, because there may be no way for the user to
7309                    // actually re-launch them.
7310                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7311                            && ps.getStopped(userId);
7312                }
7313            }
7314            return false;
7315        }
7316
7317        @Override
7318        protected boolean isPackageForFilter(String packageName,
7319                PackageParser.ActivityIntentInfo info) {
7320            return packageName.equals(info.activity.owner.packageName);
7321        }
7322
7323        @Override
7324        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7325                int match, int userId) {
7326            if (!sUserManager.exists(userId)) return null;
7327            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7328                return null;
7329            }
7330            final PackageParser.Activity activity = info.activity;
7331            if (mSafeMode && (activity.info.applicationInfo.flags
7332                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7333                return null;
7334            }
7335            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7336            if (ps == null) {
7337                return null;
7338            }
7339            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7340                    ps.readUserState(userId), userId);
7341            if (ai == null) {
7342                return null;
7343            }
7344            final ResolveInfo res = new ResolveInfo();
7345            res.activityInfo = ai;
7346            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7347                res.filter = info;
7348            }
7349            res.priority = info.getPriority();
7350            res.preferredOrder = activity.owner.mPreferredOrder;
7351            //System.out.println("Result: " + res.activityInfo.className +
7352            //                   " = " + res.priority);
7353            res.match = match;
7354            res.isDefault = info.hasDefault;
7355            res.labelRes = info.labelRes;
7356            res.nonLocalizedLabel = info.nonLocalizedLabel;
7357            if (userNeedsBadging(userId)) {
7358                res.noResourceId = true;
7359            } else {
7360                res.icon = info.icon;
7361            }
7362            res.system = isSystemApp(res.activityInfo.applicationInfo);
7363            return res;
7364        }
7365
7366        @Override
7367        protected void sortResults(List<ResolveInfo> results) {
7368            Collections.sort(results, mResolvePrioritySorter);
7369        }
7370
7371        @Override
7372        protected void dumpFilter(PrintWriter out, String prefix,
7373                PackageParser.ActivityIntentInfo filter) {
7374            out.print(prefix); out.print(
7375                    Integer.toHexString(System.identityHashCode(filter.activity)));
7376                    out.print(' ');
7377                    filter.activity.printComponentShortName(out);
7378                    out.print(" filter ");
7379                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7380        }
7381
7382//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7383//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7384//            final List<ResolveInfo> retList = Lists.newArrayList();
7385//            while (i.hasNext()) {
7386//                final ResolveInfo resolveInfo = i.next();
7387//                if (isEnabledLP(resolveInfo.activityInfo)) {
7388//                    retList.add(resolveInfo);
7389//                }
7390//            }
7391//            return retList;
7392//        }
7393
7394        // Keys are String (activity class name), values are Activity.
7395        private final ArrayMap<ComponentName, PackageParser.Activity> mActivities
7396                = new ArrayMap<ComponentName, PackageParser.Activity>();
7397        private int mFlags;
7398    }
7399
7400    private final class ServiceIntentResolver
7401            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7402        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7403                boolean defaultOnly, int userId) {
7404            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7405            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7406        }
7407
7408        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7409                int userId) {
7410            if (!sUserManager.exists(userId)) return null;
7411            mFlags = flags;
7412            return super.queryIntent(intent, resolvedType,
7413                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7414        }
7415
7416        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7417                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7418            if (!sUserManager.exists(userId)) return null;
7419            if (packageServices == null) {
7420                return null;
7421            }
7422            mFlags = flags;
7423            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7424            final int N = packageServices.size();
7425            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7426                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7427
7428            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7429            for (int i = 0; i < N; ++i) {
7430                intentFilters = packageServices.get(i).intents;
7431                if (intentFilters != null && intentFilters.size() > 0) {
7432                    PackageParser.ServiceIntentInfo[] array =
7433                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7434                    intentFilters.toArray(array);
7435                    listCut.add(array);
7436                }
7437            }
7438            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7439        }
7440
7441        public final void addService(PackageParser.Service s) {
7442            mServices.put(s.getComponentName(), s);
7443            if (DEBUG_SHOW_INFO) {
7444                Log.v(TAG, "  "
7445                        + (s.info.nonLocalizedLabel != null
7446                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7447                Log.v(TAG, "    Class=" + s.info.name);
7448            }
7449            final int NI = s.intents.size();
7450            int j;
7451            for (j=0; j<NI; j++) {
7452                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7453                if (DEBUG_SHOW_INFO) {
7454                    Log.v(TAG, "    IntentFilter:");
7455                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7456                }
7457                if (!intent.debugCheck()) {
7458                    Log.w(TAG, "==> For Service " + s.info.name);
7459                }
7460                addFilter(intent);
7461            }
7462        }
7463
7464        public final void removeService(PackageParser.Service s) {
7465            mServices.remove(s.getComponentName());
7466            if (DEBUG_SHOW_INFO) {
7467                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7468                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7469                Log.v(TAG, "    Class=" + s.info.name);
7470            }
7471            final int NI = s.intents.size();
7472            int j;
7473            for (j=0; j<NI; j++) {
7474                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7475                if (DEBUG_SHOW_INFO) {
7476                    Log.v(TAG, "    IntentFilter:");
7477                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7478                }
7479                removeFilter(intent);
7480            }
7481        }
7482
7483        @Override
7484        protected boolean allowFilterResult(
7485                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7486            ServiceInfo filterSi = filter.service.info;
7487            for (int i=dest.size()-1; i>=0; i--) {
7488                ServiceInfo destAi = dest.get(i).serviceInfo;
7489                if (destAi.name == filterSi.name
7490                        && destAi.packageName == filterSi.packageName) {
7491                    return false;
7492                }
7493            }
7494            return true;
7495        }
7496
7497        @Override
7498        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7499            return new PackageParser.ServiceIntentInfo[size];
7500        }
7501
7502        @Override
7503        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7504            if (!sUserManager.exists(userId)) return true;
7505            PackageParser.Package p = filter.service.owner;
7506            if (p != null) {
7507                PackageSetting ps = (PackageSetting)p.mExtras;
7508                if (ps != null) {
7509                    // System apps are never considered stopped for purposes of
7510                    // filtering, because there may be no way for the user to
7511                    // actually re-launch them.
7512                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7513                            && ps.getStopped(userId);
7514                }
7515            }
7516            return false;
7517        }
7518
7519        @Override
7520        protected boolean isPackageForFilter(String packageName,
7521                PackageParser.ServiceIntentInfo info) {
7522            return packageName.equals(info.service.owner.packageName);
7523        }
7524
7525        @Override
7526        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7527                int match, int userId) {
7528            if (!sUserManager.exists(userId)) return null;
7529            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7530            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7531                return null;
7532            }
7533            final PackageParser.Service service = info.service;
7534            if (mSafeMode && (service.info.applicationInfo.flags
7535                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7536                return null;
7537            }
7538            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7539            if (ps == null) {
7540                return null;
7541            }
7542            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7543                    ps.readUserState(userId), userId);
7544            if (si == null) {
7545                return null;
7546            }
7547            final ResolveInfo res = new ResolveInfo();
7548            res.serviceInfo = si;
7549            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7550                res.filter = filter;
7551            }
7552            res.priority = info.getPriority();
7553            res.preferredOrder = service.owner.mPreferredOrder;
7554            //System.out.println("Result: " + res.activityInfo.className +
7555            //                   " = " + res.priority);
7556            res.match = match;
7557            res.isDefault = info.hasDefault;
7558            res.labelRes = info.labelRes;
7559            res.nonLocalizedLabel = info.nonLocalizedLabel;
7560            res.icon = info.icon;
7561            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7562            return res;
7563        }
7564
7565        @Override
7566        protected void sortResults(List<ResolveInfo> results) {
7567            Collections.sort(results, mResolvePrioritySorter);
7568        }
7569
7570        @Override
7571        protected void dumpFilter(PrintWriter out, String prefix,
7572                PackageParser.ServiceIntentInfo filter) {
7573            out.print(prefix); out.print(
7574                    Integer.toHexString(System.identityHashCode(filter.service)));
7575                    out.print(' ');
7576                    filter.service.printComponentShortName(out);
7577                    out.print(" filter ");
7578                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7579        }
7580
7581//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7582//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7583//            final List<ResolveInfo> retList = Lists.newArrayList();
7584//            while (i.hasNext()) {
7585//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7586//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7587//                    retList.add(resolveInfo);
7588//                }
7589//            }
7590//            return retList;
7591//        }
7592
7593        // Keys are String (activity class name), values are Activity.
7594        private final ArrayMap<ComponentName, PackageParser.Service> mServices
7595                = new ArrayMap<ComponentName, PackageParser.Service>();
7596        private int mFlags;
7597    };
7598
7599    private final class ProviderIntentResolver
7600            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7601        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7602                boolean defaultOnly, int userId) {
7603            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7604            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7605        }
7606
7607        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7608                int userId) {
7609            if (!sUserManager.exists(userId))
7610                return null;
7611            mFlags = flags;
7612            return super.queryIntent(intent, resolvedType,
7613                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7614        }
7615
7616        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7617                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7618            if (!sUserManager.exists(userId))
7619                return null;
7620            if (packageProviders == null) {
7621                return null;
7622            }
7623            mFlags = flags;
7624            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7625            final int N = packageProviders.size();
7626            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7627                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7628
7629            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7630            for (int i = 0; i < N; ++i) {
7631                intentFilters = packageProviders.get(i).intents;
7632                if (intentFilters != null && intentFilters.size() > 0) {
7633                    PackageParser.ProviderIntentInfo[] array =
7634                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7635                    intentFilters.toArray(array);
7636                    listCut.add(array);
7637                }
7638            }
7639            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7640        }
7641
7642        public final void addProvider(PackageParser.Provider p) {
7643            if (mProviders.containsKey(p.getComponentName())) {
7644                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7645                return;
7646            }
7647
7648            mProviders.put(p.getComponentName(), p);
7649            if (DEBUG_SHOW_INFO) {
7650                Log.v(TAG, "  "
7651                        + (p.info.nonLocalizedLabel != null
7652                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7653                Log.v(TAG, "    Class=" + p.info.name);
7654            }
7655            final int NI = p.intents.size();
7656            int j;
7657            for (j = 0; j < NI; j++) {
7658                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7659                if (DEBUG_SHOW_INFO) {
7660                    Log.v(TAG, "    IntentFilter:");
7661                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7662                }
7663                if (!intent.debugCheck()) {
7664                    Log.w(TAG, "==> For Provider " + p.info.name);
7665                }
7666                addFilter(intent);
7667            }
7668        }
7669
7670        public final void removeProvider(PackageParser.Provider p) {
7671            mProviders.remove(p.getComponentName());
7672            if (DEBUG_SHOW_INFO) {
7673                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7674                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7675                Log.v(TAG, "    Class=" + p.info.name);
7676            }
7677            final int NI = p.intents.size();
7678            int j;
7679            for (j = 0; j < NI; j++) {
7680                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7681                if (DEBUG_SHOW_INFO) {
7682                    Log.v(TAG, "    IntentFilter:");
7683                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7684                }
7685                removeFilter(intent);
7686            }
7687        }
7688
7689        @Override
7690        protected boolean allowFilterResult(
7691                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7692            ProviderInfo filterPi = filter.provider.info;
7693            for (int i = dest.size() - 1; i >= 0; i--) {
7694                ProviderInfo destPi = dest.get(i).providerInfo;
7695                if (destPi.name == filterPi.name
7696                        && destPi.packageName == filterPi.packageName) {
7697                    return false;
7698                }
7699            }
7700            return true;
7701        }
7702
7703        @Override
7704        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7705            return new PackageParser.ProviderIntentInfo[size];
7706        }
7707
7708        @Override
7709        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7710            if (!sUserManager.exists(userId))
7711                return true;
7712            PackageParser.Package p = filter.provider.owner;
7713            if (p != null) {
7714                PackageSetting ps = (PackageSetting) p.mExtras;
7715                if (ps != null) {
7716                    // System apps are never considered stopped for purposes of
7717                    // filtering, because there may be no way for the user to
7718                    // actually re-launch them.
7719                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7720                            && ps.getStopped(userId);
7721                }
7722            }
7723            return false;
7724        }
7725
7726        @Override
7727        protected boolean isPackageForFilter(String packageName,
7728                PackageParser.ProviderIntentInfo info) {
7729            return packageName.equals(info.provider.owner.packageName);
7730        }
7731
7732        @Override
7733        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7734                int match, int userId) {
7735            if (!sUserManager.exists(userId))
7736                return null;
7737            final PackageParser.ProviderIntentInfo info = filter;
7738            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7739                return null;
7740            }
7741            final PackageParser.Provider provider = info.provider;
7742            if (mSafeMode && (provider.info.applicationInfo.flags
7743                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7744                return null;
7745            }
7746            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7747            if (ps == null) {
7748                return null;
7749            }
7750            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7751                    ps.readUserState(userId), userId);
7752            if (pi == null) {
7753                return null;
7754            }
7755            final ResolveInfo res = new ResolveInfo();
7756            res.providerInfo = pi;
7757            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7758                res.filter = filter;
7759            }
7760            res.priority = info.getPriority();
7761            res.preferredOrder = provider.owner.mPreferredOrder;
7762            res.match = match;
7763            res.isDefault = info.hasDefault;
7764            res.labelRes = info.labelRes;
7765            res.nonLocalizedLabel = info.nonLocalizedLabel;
7766            res.icon = info.icon;
7767            res.system = isSystemApp(res.providerInfo.applicationInfo);
7768            return res;
7769        }
7770
7771        @Override
7772        protected void sortResults(List<ResolveInfo> results) {
7773            Collections.sort(results, mResolvePrioritySorter);
7774        }
7775
7776        @Override
7777        protected void dumpFilter(PrintWriter out, String prefix,
7778                PackageParser.ProviderIntentInfo filter) {
7779            out.print(prefix);
7780            out.print(
7781                    Integer.toHexString(System.identityHashCode(filter.provider)));
7782            out.print(' ');
7783            filter.provider.printComponentShortName(out);
7784            out.print(" filter ");
7785            out.println(Integer.toHexString(System.identityHashCode(filter)));
7786        }
7787
7788        private final ArrayMap<ComponentName, PackageParser.Provider> mProviders
7789                = new ArrayMap<ComponentName, PackageParser.Provider>();
7790        private int mFlags;
7791    };
7792
7793    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7794            new Comparator<ResolveInfo>() {
7795        public int compare(ResolveInfo r1, ResolveInfo r2) {
7796            int v1 = r1.priority;
7797            int v2 = r2.priority;
7798            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7799            if (v1 != v2) {
7800                return (v1 > v2) ? -1 : 1;
7801            }
7802            v1 = r1.preferredOrder;
7803            v2 = r2.preferredOrder;
7804            if (v1 != v2) {
7805                return (v1 > v2) ? -1 : 1;
7806            }
7807            if (r1.isDefault != r2.isDefault) {
7808                return r1.isDefault ? -1 : 1;
7809            }
7810            v1 = r1.match;
7811            v2 = r2.match;
7812            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7813            if (v1 != v2) {
7814                return (v1 > v2) ? -1 : 1;
7815            }
7816            if (r1.system != r2.system) {
7817                return r1.system ? -1 : 1;
7818            }
7819            return 0;
7820        }
7821    };
7822
7823    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7824            new Comparator<ProviderInfo>() {
7825        public int compare(ProviderInfo p1, ProviderInfo p2) {
7826            final int v1 = p1.initOrder;
7827            final int v2 = p2.initOrder;
7828            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7829        }
7830    };
7831
7832    static final void sendPackageBroadcast(String action, String pkg,
7833            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7834            int[] userIds) {
7835        IActivityManager am = ActivityManagerNative.getDefault();
7836        if (am != null) {
7837            try {
7838                if (userIds == null) {
7839                    userIds = am.getRunningUserIds();
7840                }
7841                for (int id : userIds) {
7842                    final Intent intent = new Intent(action,
7843                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7844                    if (extras != null) {
7845                        intent.putExtras(extras);
7846                    }
7847                    if (targetPkg != null) {
7848                        intent.setPackage(targetPkg);
7849                    }
7850                    // Modify the UID when posting to other users
7851                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7852                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7853                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7854                        intent.putExtra(Intent.EXTRA_UID, uid);
7855                    }
7856                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7857                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7858                    if (DEBUG_BROADCASTS) {
7859                        RuntimeException here = new RuntimeException("here");
7860                        here.fillInStackTrace();
7861                        Slog.d(TAG, "Sending to user " + id + ": "
7862                                + intent.toShortString(false, true, false, false)
7863                                + " " + intent.getExtras(), here);
7864                    }
7865                    am.broadcastIntent(null, intent, null, finishedReceiver,
7866                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7867                            finishedReceiver != null, false, id);
7868                }
7869            } catch (RemoteException ex) {
7870            }
7871        }
7872    }
7873
7874    /**
7875     * Check if the external storage media is available. This is true if there
7876     * is a mounted external storage medium or if the external storage is
7877     * emulated.
7878     */
7879    private boolean isExternalMediaAvailable() {
7880        return mMediaMounted || Environment.isExternalStorageEmulated();
7881    }
7882
7883    @Override
7884    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7885        // writer
7886        synchronized (mPackages) {
7887            if (!isExternalMediaAvailable()) {
7888                // If the external storage is no longer mounted at this point,
7889                // the caller may not have been able to delete all of this
7890                // packages files and can not delete any more.  Bail.
7891                return null;
7892            }
7893            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7894            if (lastPackage != null) {
7895                pkgs.remove(lastPackage);
7896            }
7897            if (pkgs.size() > 0) {
7898                return pkgs.get(0);
7899            }
7900        }
7901        return null;
7902    }
7903
7904    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7905        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7906                userId, andCode ? 1 : 0, packageName);
7907        if (mSystemReady) {
7908            msg.sendToTarget();
7909        } else {
7910            if (mPostSystemReadyMessages == null) {
7911                mPostSystemReadyMessages = new ArrayList<>();
7912            }
7913            mPostSystemReadyMessages.add(msg);
7914        }
7915    }
7916
7917    void startCleaningPackages() {
7918        // reader
7919        synchronized (mPackages) {
7920            if (!isExternalMediaAvailable()) {
7921                return;
7922            }
7923            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7924                return;
7925            }
7926        }
7927        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7928        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7929        IActivityManager am = ActivityManagerNative.getDefault();
7930        if (am != null) {
7931            try {
7932                am.startService(null, intent, null, UserHandle.USER_OWNER);
7933            } catch (RemoteException e) {
7934            }
7935        }
7936    }
7937
7938    @Override
7939    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7940            int installFlags, String installerPackageName, VerificationParams verificationParams,
7941            String packageAbiOverride) {
7942        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7943                packageAbiOverride, UserHandle.getCallingUserId());
7944    }
7945
7946    @Override
7947    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7948            int installFlags, String installerPackageName, VerificationParams verificationParams,
7949            String packageAbiOverride, int userId) {
7950        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7951
7952        final int callingUid = Binder.getCallingUid();
7953        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7954
7955        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7956            try {
7957                if (observer != null) {
7958                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7959                }
7960            } catch (RemoteException re) {
7961            }
7962            return;
7963        }
7964
7965        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7966            installFlags |= PackageManager.INSTALL_FROM_ADB;
7967
7968        } else {
7969            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7970            // about installerPackageName.
7971
7972            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7973            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7974        }
7975
7976        UserHandle user;
7977        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7978            user = UserHandle.ALL;
7979        } else {
7980            user = new UserHandle(userId);
7981        }
7982
7983        verificationParams.setInstallerUid(callingUid);
7984
7985        final File originFile = new File(originPath);
7986        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7987
7988        final Message msg = mHandler.obtainMessage(INIT_COPY);
7989        msg.obj = new InstallParams(origin, observer, installFlags,
7990                installerPackageName, verificationParams, user, packageAbiOverride);
7991        mHandler.sendMessage(msg);
7992    }
7993
7994    void installStage(String packageName, File stagedDir, String stagedCid,
7995            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7996            String installerPackageName, int installerUid, UserHandle user) {
7997        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7998                params.referrerUri, installerUid, null);
7999
8000        final OriginInfo origin;
8001        if (stagedDir != null) {
8002            origin = OriginInfo.fromStagedFile(stagedDir);
8003        } else {
8004            origin = OriginInfo.fromStagedContainer(stagedCid);
8005        }
8006
8007        final Message msg = mHandler.obtainMessage(INIT_COPY);
8008        msg.obj = new InstallParams(origin, observer, params.installFlags,
8009                installerPackageName, verifParams, user, params.abiOverride);
8010        mHandler.sendMessage(msg);
8011    }
8012
8013    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
8014        Bundle extras = new Bundle(1);
8015        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
8016
8017        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
8018                packageName, extras, null, null, new int[] {userId});
8019        try {
8020            IActivityManager am = ActivityManagerNative.getDefault();
8021            final boolean isSystem =
8022                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
8023            if (isSystem && am.isUserRunning(userId, false)) {
8024                // The just-installed/enabled app is bundled on the system, so presumed
8025                // to be able to run automatically without needing an explicit launch.
8026                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
8027                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
8028                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
8029                        .setPackage(packageName);
8030                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
8031                        android.app.AppOpsManager.OP_NONE, false, false, userId);
8032            }
8033        } catch (RemoteException e) {
8034            // shouldn't happen
8035            Slog.w(TAG, "Unable to bootstrap installed package", e);
8036        }
8037    }
8038
8039    @Override
8040    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
8041            int userId) {
8042        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8043        PackageSetting pkgSetting;
8044        final int uid = Binder.getCallingUid();
8045        enforceCrossUserPermission(uid, userId, true, true,
8046                "setApplicationHiddenSetting for user " + userId);
8047
8048        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
8049            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
8050            return false;
8051        }
8052
8053        long callingId = Binder.clearCallingIdentity();
8054        try {
8055            boolean sendAdded = false;
8056            boolean sendRemoved = false;
8057            // writer
8058            synchronized (mPackages) {
8059                pkgSetting = mSettings.mPackages.get(packageName);
8060                if (pkgSetting == null) {
8061                    return false;
8062                }
8063                if (pkgSetting.getHidden(userId) != hidden) {
8064                    pkgSetting.setHidden(hidden, userId);
8065                    mSettings.writePackageRestrictionsLPr(userId);
8066                    if (hidden) {
8067                        sendRemoved = true;
8068                    } else {
8069                        sendAdded = true;
8070                    }
8071                }
8072            }
8073            if (sendAdded) {
8074                sendPackageAddedForUser(packageName, pkgSetting, userId);
8075                return true;
8076            }
8077            if (sendRemoved) {
8078                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8079                        "hiding pkg");
8080                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8081            }
8082        } finally {
8083            Binder.restoreCallingIdentity(callingId);
8084        }
8085        return false;
8086    }
8087
8088    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8089            int userId) {
8090        final PackageRemovedInfo info = new PackageRemovedInfo();
8091        info.removedPackage = packageName;
8092        info.removedUsers = new int[] {userId};
8093        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8094        info.sendBroadcast(false, false, false);
8095    }
8096
8097    /**
8098     * Returns true if application is not found or there was an error. Otherwise it returns
8099     * the hidden state of the package for the given user.
8100     */
8101    @Override
8102    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8103        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8104        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8105                false, "getApplicationHidden for user " + userId);
8106        PackageSetting pkgSetting;
8107        long callingId = Binder.clearCallingIdentity();
8108        try {
8109            // writer
8110            synchronized (mPackages) {
8111                pkgSetting = mSettings.mPackages.get(packageName);
8112                if (pkgSetting == null) {
8113                    return true;
8114                }
8115                return pkgSetting.getHidden(userId);
8116            }
8117        } finally {
8118            Binder.restoreCallingIdentity(callingId);
8119        }
8120    }
8121
8122    /**
8123     * @hide
8124     */
8125    @Override
8126    public int installExistingPackageAsUser(String packageName, int userId) {
8127        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8128                null);
8129        PackageSetting pkgSetting;
8130        final int uid = Binder.getCallingUid();
8131        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8132                + userId);
8133        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8134            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8135        }
8136
8137        long callingId = Binder.clearCallingIdentity();
8138        try {
8139            boolean sendAdded = false;
8140            Bundle extras = new Bundle(1);
8141
8142            // writer
8143            synchronized (mPackages) {
8144                pkgSetting = mSettings.mPackages.get(packageName);
8145                if (pkgSetting == null) {
8146                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8147                }
8148                if (!pkgSetting.getInstalled(userId)) {
8149                    pkgSetting.setInstalled(true, userId);
8150                    pkgSetting.setHidden(false, userId);
8151                    mSettings.writePackageRestrictionsLPr(userId);
8152                    sendAdded = true;
8153                }
8154            }
8155
8156            if (sendAdded) {
8157                sendPackageAddedForUser(packageName, pkgSetting, userId);
8158            }
8159        } finally {
8160            Binder.restoreCallingIdentity(callingId);
8161        }
8162
8163        return PackageManager.INSTALL_SUCCEEDED;
8164    }
8165
8166    boolean isUserRestricted(int userId, String restrictionKey) {
8167        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8168        if (restrictions.getBoolean(restrictionKey, false)) {
8169            Log.w(TAG, "User is restricted: " + restrictionKey);
8170            return true;
8171        }
8172        return false;
8173    }
8174
8175    @Override
8176    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8177        mContext.enforceCallingOrSelfPermission(
8178                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8179                "Only package verification agents can verify applications");
8180
8181        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8182        final PackageVerificationResponse response = new PackageVerificationResponse(
8183                verificationCode, Binder.getCallingUid());
8184        msg.arg1 = id;
8185        msg.obj = response;
8186        mHandler.sendMessage(msg);
8187    }
8188
8189    @Override
8190    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8191            long millisecondsToDelay) {
8192        mContext.enforceCallingOrSelfPermission(
8193                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8194                "Only package verification agents can extend verification timeouts");
8195
8196        final PackageVerificationState state = mPendingVerification.get(id);
8197        final PackageVerificationResponse response = new PackageVerificationResponse(
8198                verificationCodeAtTimeout, Binder.getCallingUid());
8199
8200        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8201            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8202        }
8203        if (millisecondsToDelay < 0) {
8204            millisecondsToDelay = 0;
8205        }
8206        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8207                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8208            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8209        }
8210
8211        if ((state != null) && !state.timeoutExtended()) {
8212            state.extendTimeout();
8213
8214            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8215            msg.arg1 = id;
8216            msg.obj = response;
8217            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8218        }
8219    }
8220
8221    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8222            int verificationCode, UserHandle user) {
8223        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8224        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8225        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8226        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8227        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8228
8229        mContext.sendBroadcastAsUser(intent, user,
8230                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8231    }
8232
8233    private ComponentName matchComponentForVerifier(String packageName,
8234            List<ResolveInfo> receivers) {
8235        ActivityInfo targetReceiver = null;
8236
8237        final int NR = receivers.size();
8238        for (int i = 0; i < NR; i++) {
8239            final ResolveInfo info = receivers.get(i);
8240            if (info.activityInfo == null) {
8241                continue;
8242            }
8243
8244            if (packageName.equals(info.activityInfo.packageName)) {
8245                targetReceiver = info.activityInfo;
8246                break;
8247            }
8248        }
8249
8250        if (targetReceiver == null) {
8251            return null;
8252        }
8253
8254        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8255    }
8256
8257    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8258            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8259        if (pkgInfo.verifiers.length == 0) {
8260            return null;
8261        }
8262
8263        final int N = pkgInfo.verifiers.length;
8264        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8265        for (int i = 0; i < N; i++) {
8266            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8267
8268            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8269                    receivers);
8270            if (comp == null) {
8271                continue;
8272            }
8273
8274            final int verifierUid = getUidForVerifier(verifierInfo);
8275            if (verifierUid == -1) {
8276                continue;
8277            }
8278
8279            if (DEBUG_VERIFY) {
8280                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8281                        + " with the correct signature");
8282            }
8283            sufficientVerifiers.add(comp);
8284            verificationState.addSufficientVerifier(verifierUid);
8285        }
8286
8287        return sufficientVerifiers;
8288    }
8289
8290    private int getUidForVerifier(VerifierInfo verifierInfo) {
8291        synchronized (mPackages) {
8292            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8293            if (pkg == null) {
8294                return -1;
8295            } else if (pkg.mSignatures.length != 1) {
8296                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8297                        + " has more than one signature; ignoring");
8298                return -1;
8299            }
8300
8301            /*
8302             * If the public key of the package's signature does not match
8303             * our expected public key, then this is a different package and
8304             * we should skip.
8305             */
8306
8307            final byte[] expectedPublicKey;
8308            try {
8309                final Signature verifierSig = pkg.mSignatures[0];
8310                final PublicKey publicKey = verifierSig.getPublicKey();
8311                expectedPublicKey = publicKey.getEncoded();
8312            } catch (CertificateException e) {
8313                return -1;
8314            }
8315
8316            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8317
8318            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8319                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8320                        + " does not have the expected public key; ignoring");
8321                return -1;
8322            }
8323
8324            return pkg.applicationInfo.uid;
8325        }
8326    }
8327
8328    @Override
8329    public void finishPackageInstall(int token) {
8330        enforceSystemOrRoot("Only the system is allowed to finish installs");
8331
8332        if (DEBUG_INSTALL) {
8333            Slog.v(TAG, "BM finishing package install for " + token);
8334        }
8335
8336        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8337        mHandler.sendMessage(msg);
8338    }
8339
8340    /**
8341     * Get the verification agent timeout.
8342     *
8343     * @return verification timeout in milliseconds
8344     */
8345    private long getVerificationTimeout() {
8346        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8347                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8348                DEFAULT_VERIFICATION_TIMEOUT);
8349    }
8350
8351    /**
8352     * Get the default verification agent response code.
8353     *
8354     * @return default verification response code
8355     */
8356    private int getDefaultVerificationResponse() {
8357        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8358                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8359                DEFAULT_VERIFICATION_RESPONSE);
8360    }
8361
8362    /**
8363     * Check whether or not package verification has been enabled.
8364     *
8365     * @return true if verification should be performed
8366     */
8367    private boolean isVerificationEnabled(int userId, int installFlags) {
8368        if (!DEFAULT_VERIFY_ENABLE) {
8369            return false;
8370        }
8371
8372        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8373
8374        // Check if installing from ADB
8375        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8376            // Do not run verification in a test harness environment
8377            if (ActivityManager.isRunningInTestHarness()) {
8378                return false;
8379            }
8380            if (ensureVerifyAppsEnabled) {
8381                return true;
8382            }
8383            // Check if the developer does not want package verification for ADB installs
8384            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8385                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8386                return false;
8387            }
8388        }
8389
8390        if (ensureVerifyAppsEnabled) {
8391            return true;
8392        }
8393
8394        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8395                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8396    }
8397
8398    /**
8399     * Get the "allow unknown sources" setting.
8400     *
8401     * @return the current "allow unknown sources" setting
8402     */
8403    private int getUnknownSourcesSettings() {
8404        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8405                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8406                -1);
8407    }
8408
8409    @Override
8410    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8411        final int uid = Binder.getCallingUid();
8412        // writer
8413        synchronized (mPackages) {
8414            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8415            if (targetPackageSetting == null) {
8416                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8417            }
8418
8419            PackageSetting installerPackageSetting;
8420            if (installerPackageName != null) {
8421                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8422                if (installerPackageSetting == null) {
8423                    throw new IllegalArgumentException("Unknown installer package: "
8424                            + installerPackageName);
8425                }
8426            } else {
8427                installerPackageSetting = null;
8428            }
8429
8430            Signature[] callerSignature;
8431            Object obj = mSettings.getUserIdLPr(uid);
8432            if (obj != null) {
8433                if (obj instanceof SharedUserSetting) {
8434                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8435                } else if (obj instanceof PackageSetting) {
8436                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8437                } else {
8438                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8439                }
8440            } else {
8441                throw new SecurityException("Unknown calling uid " + uid);
8442            }
8443
8444            // Verify: can't set installerPackageName to a package that is
8445            // not signed with the same cert as the caller.
8446            if (installerPackageSetting != null) {
8447                if (compareSignatures(callerSignature,
8448                        installerPackageSetting.signatures.mSignatures)
8449                        != PackageManager.SIGNATURE_MATCH) {
8450                    throw new SecurityException(
8451                            "Caller does not have same cert as new installer package "
8452                            + installerPackageName);
8453                }
8454            }
8455
8456            // Verify: if target already has an installer package, it must
8457            // be signed with the same cert as the caller.
8458            if (targetPackageSetting.installerPackageName != null) {
8459                PackageSetting setting = mSettings.mPackages.get(
8460                        targetPackageSetting.installerPackageName);
8461                // If the currently set package isn't valid, then it's always
8462                // okay to change it.
8463                if (setting != null) {
8464                    if (compareSignatures(callerSignature,
8465                            setting.signatures.mSignatures)
8466                            != PackageManager.SIGNATURE_MATCH) {
8467                        throw new SecurityException(
8468                                "Caller does not have same cert as old installer package "
8469                                + targetPackageSetting.installerPackageName);
8470                    }
8471                }
8472            }
8473
8474            // Okay!
8475            targetPackageSetting.installerPackageName = installerPackageName;
8476            scheduleWriteSettingsLocked();
8477        }
8478    }
8479
8480    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8481        // Queue up an async operation since the package installation may take a little while.
8482        mHandler.post(new Runnable() {
8483            public void run() {
8484                mHandler.removeCallbacks(this);
8485                 // Result object to be returned
8486                PackageInstalledInfo res = new PackageInstalledInfo();
8487                res.returnCode = currentStatus;
8488                res.uid = -1;
8489                res.pkg = null;
8490                res.removedInfo = new PackageRemovedInfo();
8491                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8492                    args.doPreInstall(res.returnCode);
8493                    synchronized (mInstallLock) {
8494                        installPackageLI(args, res);
8495                    }
8496                    args.doPostInstall(res.returnCode, res.uid);
8497                }
8498
8499                // A restore should be performed at this point if (a) the install
8500                // succeeded, (b) the operation is not an update, and (c) the new
8501                // package has not opted out of backup participation.
8502                final boolean update = res.removedInfo.removedPackage != null;
8503                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8504                boolean doRestore = !update
8505                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8506
8507                // Set up the post-install work request bookkeeping.  This will be used
8508                // and cleaned up by the post-install event handling regardless of whether
8509                // there's a restore pass performed.  Token values are >= 1.
8510                int token;
8511                if (mNextInstallToken < 0) mNextInstallToken = 1;
8512                token = mNextInstallToken++;
8513
8514                PostInstallData data = new PostInstallData(args, res);
8515                mRunningInstalls.put(token, data);
8516                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8517
8518                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8519                    // Pass responsibility to the Backup Manager.  It will perform a
8520                    // restore if appropriate, then pass responsibility back to the
8521                    // Package Manager to run the post-install observer callbacks
8522                    // and broadcasts.
8523                    IBackupManager bm = IBackupManager.Stub.asInterface(
8524                            ServiceManager.getService(Context.BACKUP_SERVICE));
8525                    if (bm != null) {
8526                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8527                                + " to BM for possible restore");
8528                        try {
8529                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8530                        } catch (RemoteException e) {
8531                            // can't happen; the backup manager is local
8532                        } catch (Exception e) {
8533                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8534                            doRestore = false;
8535                        }
8536                    } else {
8537                        Slog.e(TAG, "Backup Manager not found!");
8538                        doRestore = false;
8539                    }
8540                }
8541
8542                if (!doRestore) {
8543                    // No restore possible, or the Backup Manager was mysteriously not
8544                    // available -- just fire the post-install work request directly.
8545                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8546                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8547                    mHandler.sendMessage(msg);
8548                }
8549            }
8550        });
8551    }
8552
8553    private abstract class HandlerParams {
8554        private static final int MAX_RETRIES = 4;
8555
8556        /**
8557         * Number of times startCopy() has been attempted and had a non-fatal
8558         * error.
8559         */
8560        private int mRetries = 0;
8561
8562        /** User handle for the user requesting the information or installation. */
8563        private final UserHandle mUser;
8564
8565        HandlerParams(UserHandle user) {
8566            mUser = user;
8567        }
8568
8569        UserHandle getUser() {
8570            return mUser;
8571        }
8572
8573        final boolean startCopy() {
8574            boolean res;
8575            try {
8576                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8577
8578                if (++mRetries > MAX_RETRIES) {
8579                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8580                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8581                    handleServiceError();
8582                    return false;
8583                } else {
8584                    handleStartCopy();
8585                    res = true;
8586                }
8587            } catch (RemoteException e) {
8588                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8589                mHandler.sendEmptyMessage(MCS_RECONNECT);
8590                res = false;
8591            }
8592            handleReturnCode();
8593            return res;
8594        }
8595
8596        final void serviceError() {
8597            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8598            handleServiceError();
8599            handleReturnCode();
8600        }
8601
8602        abstract void handleStartCopy() throws RemoteException;
8603        abstract void handleServiceError();
8604        abstract void handleReturnCode();
8605    }
8606
8607    class MeasureParams extends HandlerParams {
8608        private final PackageStats mStats;
8609        private boolean mSuccess;
8610
8611        private final IPackageStatsObserver mObserver;
8612
8613        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8614            super(new UserHandle(stats.userHandle));
8615            mObserver = observer;
8616            mStats = stats;
8617        }
8618
8619        @Override
8620        public String toString() {
8621            return "MeasureParams{"
8622                + Integer.toHexString(System.identityHashCode(this))
8623                + " " + mStats.packageName + "}";
8624        }
8625
8626        @Override
8627        void handleStartCopy() throws RemoteException {
8628            synchronized (mInstallLock) {
8629                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8630            }
8631
8632            if (mSuccess) {
8633                final boolean mounted;
8634                if (Environment.isExternalStorageEmulated()) {
8635                    mounted = true;
8636                } else {
8637                    final String status = Environment.getExternalStorageState();
8638                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8639                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8640                }
8641
8642                if (mounted) {
8643                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8644
8645                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8646                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8647
8648                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8649                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8650
8651                    // Always subtract cache size, since it's a subdirectory
8652                    mStats.externalDataSize -= mStats.externalCacheSize;
8653
8654                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8655                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8656
8657                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8658                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8659                }
8660            }
8661        }
8662
8663        @Override
8664        void handleReturnCode() {
8665            if (mObserver != null) {
8666                try {
8667                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8668                } catch (RemoteException e) {
8669                    Slog.i(TAG, "Observer no longer exists.");
8670                }
8671            }
8672        }
8673
8674        @Override
8675        void handleServiceError() {
8676            Slog.e(TAG, "Could not measure application " + mStats.packageName
8677                            + " external storage");
8678        }
8679    }
8680
8681    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8682            throws RemoteException {
8683        long result = 0;
8684        for (File path : paths) {
8685            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8686        }
8687        return result;
8688    }
8689
8690    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8691        for (File path : paths) {
8692            try {
8693                mcs.clearDirectory(path.getAbsolutePath());
8694            } catch (RemoteException e) {
8695            }
8696        }
8697    }
8698
8699    static class OriginInfo {
8700        /**
8701         * Location where install is coming from, before it has been
8702         * copied/renamed into place. This could be a single monolithic APK
8703         * file, or a cluster directory. This location may be untrusted.
8704         */
8705        final File file;
8706        final String cid;
8707
8708        /**
8709         * Flag indicating that {@link #file} or {@link #cid} has already been
8710         * staged, meaning downstream users don't need to defensively copy the
8711         * contents.
8712         */
8713        final boolean staged;
8714
8715        /**
8716         * Flag indicating that {@link #file} or {@link #cid} is an already
8717         * installed app that is being moved.
8718         */
8719        final boolean existing;
8720
8721        final String resolvedPath;
8722        final File resolvedFile;
8723
8724        static OriginInfo fromNothing() {
8725            return new OriginInfo(null, null, false, false);
8726        }
8727
8728        static OriginInfo fromUntrustedFile(File file) {
8729            return new OriginInfo(file, null, false, false);
8730        }
8731
8732        static OriginInfo fromExistingFile(File file) {
8733            return new OriginInfo(file, null, false, true);
8734        }
8735
8736        static OriginInfo fromStagedFile(File file) {
8737            return new OriginInfo(file, null, true, false);
8738        }
8739
8740        static OriginInfo fromStagedContainer(String cid) {
8741            return new OriginInfo(null, cid, true, false);
8742        }
8743
8744        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8745            this.file = file;
8746            this.cid = cid;
8747            this.staged = staged;
8748            this.existing = existing;
8749
8750            if (cid != null) {
8751                resolvedPath = PackageHelper.getSdDir(cid);
8752                resolvedFile = new File(resolvedPath);
8753            } else if (file != null) {
8754                resolvedPath = file.getAbsolutePath();
8755                resolvedFile = file;
8756            } else {
8757                resolvedPath = null;
8758                resolvedFile = null;
8759            }
8760        }
8761    }
8762
8763    class InstallParams extends HandlerParams {
8764        final OriginInfo origin;
8765        final IPackageInstallObserver2 observer;
8766        int installFlags;
8767        final String installerPackageName;
8768        final VerificationParams verificationParams;
8769        private InstallArgs mArgs;
8770        private int mRet;
8771        final String packageAbiOverride;
8772
8773        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8774                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8775                String packageAbiOverride) {
8776            super(user);
8777            this.origin = origin;
8778            this.observer = observer;
8779            this.installFlags = installFlags;
8780            this.installerPackageName = installerPackageName;
8781            this.verificationParams = verificationParams;
8782            this.packageAbiOverride = packageAbiOverride;
8783        }
8784
8785        @Override
8786        public String toString() {
8787            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8788                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8789        }
8790
8791        public ManifestDigest getManifestDigest() {
8792            if (verificationParams == null) {
8793                return null;
8794            }
8795            return verificationParams.getManifestDigest();
8796        }
8797
8798        private int installLocationPolicy(PackageInfoLite pkgLite) {
8799            String packageName = pkgLite.packageName;
8800            int installLocation = pkgLite.installLocation;
8801            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8802            // reader
8803            synchronized (mPackages) {
8804                PackageParser.Package pkg = mPackages.get(packageName);
8805                if (pkg != null) {
8806                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8807                        // Check for downgrading.
8808                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8809                            if (pkgLite.versionCode < pkg.mVersionCode) {
8810                                Slog.w(TAG, "Can't install update of " + packageName
8811                                        + " update version " + pkgLite.versionCode
8812                                        + " is older than installed version "
8813                                        + pkg.mVersionCode);
8814                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8815                            }
8816                        }
8817                        // Check for updated system application.
8818                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8819                            if (onSd) {
8820                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8821                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8822                            }
8823                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8824                        } else {
8825                            if (onSd) {
8826                                // Install flag overrides everything.
8827                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8828                            }
8829                            // If current upgrade specifies particular preference
8830                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8831                                // Application explicitly specified internal.
8832                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8833                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8834                                // App explictly prefers external. Let policy decide
8835                            } else {
8836                                // Prefer previous location
8837                                if (isExternal(pkg)) {
8838                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8839                                }
8840                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8841                            }
8842                        }
8843                    } else {
8844                        // Invalid install. Return error code
8845                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8846                    }
8847                }
8848            }
8849            // All the special cases have been taken care of.
8850            // Return result based on recommended install location.
8851            if (onSd) {
8852                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8853            }
8854            return pkgLite.recommendedInstallLocation;
8855        }
8856
8857        /*
8858         * Invoke remote method to get package information and install
8859         * location values. Override install location based on default
8860         * policy if needed and then create install arguments based
8861         * on the install location.
8862         */
8863        public void handleStartCopy() throws RemoteException {
8864            int ret = PackageManager.INSTALL_SUCCEEDED;
8865
8866            // If we're already staged, we've firmly committed to an install location
8867            if (origin.staged) {
8868                if (origin.file != null) {
8869                    installFlags |= PackageManager.INSTALL_INTERNAL;
8870                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8871                } else if (origin.cid != null) {
8872                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8873                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8874                } else {
8875                    throw new IllegalStateException("Invalid stage location");
8876                }
8877            }
8878
8879            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8880            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8881
8882            PackageInfoLite pkgLite = null;
8883
8884            if (onInt && onSd) {
8885                // Check if both bits are set.
8886                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8887                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8888            } else {
8889                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8890                        packageAbiOverride);
8891
8892                /*
8893                 * If we have too little free space, try to free cache
8894                 * before giving up.
8895                 */
8896                if (!origin.staged && pkgLite.recommendedInstallLocation
8897                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8898                    // TODO: focus freeing disk space on the target device
8899                    final StorageManager storage = StorageManager.from(mContext);
8900                    final long lowThreshold = storage.getStorageLowBytes(
8901                            Environment.getDataDirectory());
8902
8903                    final long sizeBytes = mContainerService.calculateInstalledSize(
8904                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8905
8906                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8907                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8908                                installFlags, packageAbiOverride);
8909                    }
8910
8911                    /*
8912                     * The cache free must have deleted the file we
8913                     * downloaded to install.
8914                     *
8915                     * TODO: fix the "freeCache" call to not delete
8916                     *       the file we care about.
8917                     */
8918                    if (pkgLite.recommendedInstallLocation
8919                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8920                        pkgLite.recommendedInstallLocation
8921                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8922                    }
8923                }
8924            }
8925
8926            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8927                int loc = pkgLite.recommendedInstallLocation;
8928                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8929                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8930                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8931                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8932                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8933                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8934                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8935                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8936                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8937                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8938                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8939                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8940                } else {
8941                    // Override with defaults if needed.
8942                    loc = installLocationPolicy(pkgLite);
8943                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8944                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8945                    } else if (!onSd && !onInt) {
8946                        // Override install location with flags
8947                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8948                            // Set the flag to install on external media.
8949                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8950                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8951                        } else {
8952                            // Make sure the flag for installing on external
8953                            // media is unset
8954                            installFlags |= PackageManager.INSTALL_INTERNAL;
8955                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8956                        }
8957                    }
8958                }
8959            }
8960
8961            final InstallArgs args = createInstallArgs(this);
8962            mArgs = args;
8963
8964            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8965                 /*
8966                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8967                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8968                 */
8969                int userIdentifier = getUser().getIdentifier();
8970                if (userIdentifier == UserHandle.USER_ALL
8971                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8972                    userIdentifier = UserHandle.USER_OWNER;
8973                }
8974
8975                /*
8976                 * Determine if we have any installed package verifiers. If we
8977                 * do, then we'll defer to them to verify the packages.
8978                 */
8979                final int requiredUid = mRequiredVerifierPackage == null ? -1
8980                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8981                if (!origin.existing && requiredUid != -1
8982                        && isVerificationEnabled(userIdentifier, installFlags)) {
8983                    final Intent verification = new Intent(
8984                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8985                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8986                            PACKAGE_MIME_TYPE);
8987                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8988
8989                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8990                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8991                            0 /* TODO: Which userId? */);
8992
8993                    if (DEBUG_VERIFY) {
8994                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8995                                + verification.toString() + " with " + pkgLite.verifiers.length
8996                                + " optional verifiers");
8997                    }
8998
8999                    final int verificationId = mPendingVerificationToken++;
9000
9001                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
9002
9003                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
9004                            installerPackageName);
9005
9006                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
9007                            installFlags);
9008
9009                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
9010                            pkgLite.packageName);
9011
9012                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
9013                            pkgLite.versionCode);
9014
9015                    if (verificationParams != null) {
9016                        if (verificationParams.getVerificationURI() != null) {
9017                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
9018                                 verificationParams.getVerificationURI());
9019                        }
9020                        if (verificationParams.getOriginatingURI() != null) {
9021                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
9022                                  verificationParams.getOriginatingURI());
9023                        }
9024                        if (verificationParams.getReferrer() != null) {
9025                            verification.putExtra(Intent.EXTRA_REFERRER,
9026                                  verificationParams.getReferrer());
9027                        }
9028                        if (verificationParams.getOriginatingUid() >= 0) {
9029                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
9030                                  verificationParams.getOriginatingUid());
9031                        }
9032                        if (verificationParams.getInstallerUid() >= 0) {
9033                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
9034                                  verificationParams.getInstallerUid());
9035                        }
9036                    }
9037
9038                    final PackageVerificationState verificationState = new PackageVerificationState(
9039                            requiredUid, args);
9040
9041                    mPendingVerification.append(verificationId, verificationState);
9042
9043                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
9044                            receivers, verificationState);
9045
9046                    /*
9047                     * If any sufficient verifiers were listed in the package
9048                     * manifest, attempt to ask them.
9049                     */
9050                    if (sufficientVerifiers != null) {
9051                        final int N = sufficientVerifiers.size();
9052                        if (N == 0) {
9053                            Slog.i(TAG, "Additional verifiers required, but none installed.");
9054                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9055                        } else {
9056                            for (int i = 0; i < N; i++) {
9057                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9058
9059                                final Intent sufficientIntent = new Intent(verification);
9060                                sufficientIntent.setComponent(verifierComponent);
9061
9062                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9063                            }
9064                        }
9065                    }
9066
9067                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9068                            mRequiredVerifierPackage, receivers);
9069                    if (ret == PackageManager.INSTALL_SUCCEEDED
9070                            && mRequiredVerifierPackage != null) {
9071                        /*
9072                         * Send the intent to the required verification agent,
9073                         * but only start the verification timeout after the
9074                         * target BroadcastReceivers have run.
9075                         */
9076                        verification.setComponent(requiredVerifierComponent);
9077                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9078                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9079                                new BroadcastReceiver() {
9080                                    @Override
9081                                    public void onReceive(Context context, Intent intent) {
9082                                        final Message msg = mHandler
9083                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9084                                        msg.arg1 = verificationId;
9085                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9086                                    }
9087                                }, null, 0, null, null);
9088
9089                        /*
9090                         * We don't want the copy to proceed until verification
9091                         * succeeds, so null out this field.
9092                         */
9093                        mArgs = null;
9094                    }
9095                } else {
9096                    /*
9097                     * No package verification is enabled, so immediately start
9098                     * the remote call to initiate copy using temporary file.
9099                     */
9100                    ret = args.copyApk(mContainerService, true);
9101                }
9102            }
9103
9104            mRet = ret;
9105        }
9106
9107        @Override
9108        void handleReturnCode() {
9109            // If mArgs is null, then MCS couldn't be reached. When it
9110            // reconnects, it will try again to install. At that point, this
9111            // will succeed.
9112            if (mArgs != null) {
9113                processPendingInstall(mArgs, mRet);
9114            }
9115        }
9116
9117        @Override
9118        void handleServiceError() {
9119            mArgs = createInstallArgs(this);
9120            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9121        }
9122
9123        public boolean isForwardLocked() {
9124            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9125        }
9126    }
9127
9128    /**
9129     * Used during creation of InstallArgs
9130     *
9131     * @param installFlags package installation flags
9132     * @return true if should be installed on external storage
9133     */
9134    private static boolean installOnSd(int installFlags) {
9135        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9136            return false;
9137        }
9138        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9139            return true;
9140        }
9141        return false;
9142    }
9143
9144    /**
9145     * Used during creation of InstallArgs
9146     *
9147     * @param installFlags package installation flags
9148     * @return true if should be installed as forward locked
9149     */
9150    private static boolean installForwardLocked(int installFlags) {
9151        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9152    }
9153
9154    private InstallArgs createInstallArgs(InstallParams params) {
9155        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9156            return new AsecInstallArgs(params);
9157        } else {
9158            return new FileInstallArgs(params);
9159        }
9160    }
9161
9162    /**
9163     * Create args that describe an existing installed package. Typically used
9164     * when cleaning up old installs, or used as a move source.
9165     */
9166    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9167            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9168        final boolean isInAsec;
9169        if (installOnSd(installFlags)) {
9170            /* Apps on SD card are always in ASEC containers. */
9171            isInAsec = true;
9172        } else if (installForwardLocked(installFlags)
9173                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9174            /*
9175             * Forward-locked apps are only in ASEC containers if they're the
9176             * new style
9177             */
9178            isInAsec = true;
9179        } else {
9180            isInAsec = false;
9181        }
9182
9183        if (isInAsec) {
9184            return new AsecInstallArgs(codePath, instructionSets,
9185                    installOnSd(installFlags), installForwardLocked(installFlags));
9186        } else {
9187            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9188                    instructionSets);
9189        }
9190    }
9191
9192    static abstract class InstallArgs {
9193        /** @see InstallParams#origin */
9194        final OriginInfo origin;
9195
9196        final IPackageInstallObserver2 observer;
9197        // Always refers to PackageManager flags only
9198        final int installFlags;
9199        final String installerPackageName;
9200        final ManifestDigest manifestDigest;
9201        final UserHandle user;
9202        final String abiOverride;
9203
9204        // The list of instruction sets supported by this app. This is currently
9205        // only used during the rmdex() phase to clean up resources. We can get rid of this
9206        // if we move dex files under the common app path.
9207        /* nullable */ String[] instructionSets;
9208
9209        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9210                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9211                String[] instructionSets, String abiOverride) {
9212            this.origin = origin;
9213            this.installFlags = installFlags;
9214            this.observer = observer;
9215            this.installerPackageName = installerPackageName;
9216            this.manifestDigest = manifestDigest;
9217            this.user = user;
9218            this.instructionSets = instructionSets;
9219            this.abiOverride = abiOverride;
9220        }
9221
9222        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9223        abstract int doPreInstall(int status);
9224
9225        /**
9226         * Rename package into final resting place. All paths on the given
9227         * scanned package should be updated to reflect the rename.
9228         */
9229        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9230        abstract int doPostInstall(int status, int uid);
9231
9232        /** @see PackageSettingBase#codePathString */
9233        abstract String getCodePath();
9234        /** @see PackageSettingBase#resourcePathString */
9235        abstract String getResourcePath();
9236        abstract String getLegacyNativeLibraryPath();
9237
9238        // Need installer lock especially for dex file removal.
9239        abstract void cleanUpResourcesLI();
9240        abstract boolean doPostDeleteLI(boolean delete);
9241        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9242
9243        /**
9244         * Called before the source arguments are copied. This is used mostly
9245         * for MoveParams when it needs to read the source file to put it in the
9246         * destination.
9247         */
9248        int doPreCopy() {
9249            return PackageManager.INSTALL_SUCCEEDED;
9250        }
9251
9252        /**
9253         * Called after the source arguments are copied. This is used mostly for
9254         * MoveParams when it needs to read the source file to put it in the
9255         * destination.
9256         *
9257         * @return
9258         */
9259        int doPostCopy(int uid) {
9260            return PackageManager.INSTALL_SUCCEEDED;
9261        }
9262
9263        protected boolean isFwdLocked() {
9264            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9265        }
9266
9267        protected boolean isExternal() {
9268            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9269        }
9270
9271        UserHandle getUser() {
9272            return user;
9273        }
9274    }
9275
9276    /**
9277     * Logic to handle installation of non-ASEC applications, including copying
9278     * and renaming logic.
9279     */
9280    class FileInstallArgs extends InstallArgs {
9281        private File codeFile;
9282        private File resourceFile;
9283        private File legacyNativeLibraryPath;
9284
9285        // Example topology:
9286        // /data/app/com.example/base.apk
9287        // /data/app/com.example/split_foo.apk
9288        // /data/app/com.example/lib/arm/libfoo.so
9289        // /data/app/com.example/lib/arm64/libfoo.so
9290        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9291
9292        /** New install */
9293        FileInstallArgs(InstallParams params) {
9294            super(params.origin, params.observer, params.installFlags,
9295                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9296                    null /* instruction sets */, params.packageAbiOverride);
9297            if (isFwdLocked()) {
9298                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9299            }
9300        }
9301
9302        /** Existing install */
9303        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9304                String[] instructionSets) {
9305            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9306            this.codeFile = (codePath != null) ? new File(codePath) : null;
9307            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9308            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9309                    new File(legacyNativeLibraryPath) : null;
9310        }
9311
9312        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9313            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9314                    isFwdLocked(), abiOverride);
9315
9316            final StorageManager storage = StorageManager.from(mContext);
9317            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9318        }
9319
9320        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9321            if (origin.staged) {
9322                Slog.d(TAG, origin.file + " already staged; skipping copy");
9323                codeFile = origin.file;
9324                resourceFile = origin.file;
9325                return PackageManager.INSTALL_SUCCEEDED;
9326            }
9327
9328            try {
9329                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9330                codeFile = tempDir;
9331                resourceFile = tempDir;
9332            } catch (IOException e) {
9333                Slog.w(TAG, "Failed to create copy file: " + e);
9334                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9335            }
9336
9337            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9338                @Override
9339                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9340                    if (!FileUtils.isValidExtFilename(name)) {
9341                        throw new IllegalArgumentException("Invalid filename: " + name);
9342                    }
9343                    try {
9344                        final File file = new File(codeFile, name);
9345                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9346                                O_RDWR | O_CREAT, 0644);
9347                        Os.chmod(file.getAbsolutePath(), 0644);
9348                        return new ParcelFileDescriptor(fd);
9349                    } catch (ErrnoException e) {
9350                        throw new RemoteException("Failed to open: " + e.getMessage());
9351                    }
9352                }
9353            };
9354
9355            int ret = PackageManager.INSTALL_SUCCEEDED;
9356            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9357            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9358                Slog.e(TAG, "Failed to copy package");
9359                return ret;
9360            }
9361
9362            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9363            NativeLibraryHelper.Handle handle = null;
9364            try {
9365                handle = NativeLibraryHelper.Handle.create(codeFile);
9366                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9367                        abiOverride);
9368            } catch (IOException e) {
9369                Slog.e(TAG, "Copying native libraries failed", e);
9370                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9371            } finally {
9372                IoUtils.closeQuietly(handle);
9373            }
9374
9375            return ret;
9376        }
9377
9378        int doPreInstall(int status) {
9379            if (status != PackageManager.INSTALL_SUCCEEDED) {
9380                cleanUp();
9381            }
9382            return status;
9383        }
9384
9385        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9386            if (status != PackageManager.INSTALL_SUCCEEDED) {
9387                cleanUp();
9388                return false;
9389            } else {
9390                final File beforeCodeFile = codeFile;
9391                final File afterCodeFile = getNextCodePath(pkg.packageName);
9392
9393                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9394                try {
9395                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9396                } catch (ErrnoException e) {
9397                    Slog.d(TAG, "Failed to rename", e);
9398                    return false;
9399                }
9400
9401                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9402                    Slog.d(TAG, "Failed to restorecon");
9403                    return false;
9404                }
9405
9406                // Reflect the rename internally
9407                codeFile = afterCodeFile;
9408                resourceFile = afterCodeFile;
9409
9410                // Reflect the rename in scanned details
9411                pkg.codePath = afterCodeFile.getAbsolutePath();
9412                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9413                        pkg.baseCodePath);
9414                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9415                        pkg.splitCodePaths);
9416
9417                // Reflect the rename in app info
9418                pkg.applicationInfo.setCodePath(pkg.codePath);
9419                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9420                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9421                pkg.applicationInfo.setResourcePath(pkg.codePath);
9422                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9423                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9424
9425                return true;
9426            }
9427        }
9428
9429        int doPostInstall(int status, int uid) {
9430            if (status != PackageManager.INSTALL_SUCCEEDED) {
9431                cleanUp();
9432            }
9433            return status;
9434        }
9435
9436        @Override
9437        String getCodePath() {
9438            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9439        }
9440
9441        @Override
9442        String getResourcePath() {
9443            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9444        }
9445
9446        @Override
9447        String getLegacyNativeLibraryPath() {
9448            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9449        }
9450
9451        private boolean cleanUp() {
9452            if (codeFile == null || !codeFile.exists()) {
9453                return false;
9454            }
9455
9456            if (codeFile.isDirectory()) {
9457                FileUtils.deleteContents(codeFile);
9458            }
9459            codeFile.delete();
9460
9461            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9462                resourceFile.delete();
9463            }
9464
9465            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9466                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9467                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9468                }
9469                legacyNativeLibraryPath.delete();
9470            }
9471
9472            return true;
9473        }
9474
9475        void cleanUpResourcesLI() {
9476            // Try enumerating all code paths before deleting
9477            List<String> allCodePaths = Collections.EMPTY_LIST;
9478            if (codeFile != null && codeFile.exists()) {
9479                try {
9480                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9481                    allCodePaths = pkg.getAllCodePaths();
9482                } catch (PackageParserException e) {
9483                    // Ignored; we tried our best
9484                }
9485            }
9486
9487            cleanUp();
9488
9489            if (!allCodePaths.isEmpty()) {
9490                if (instructionSets == null) {
9491                    throw new IllegalStateException("instructionSet == null");
9492                }
9493                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9494                for (String codePath : allCodePaths) {
9495                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9496                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9497                        if (retCode < 0) {
9498                            Slog.w(TAG, "Couldn't remove dex file for package: "
9499                                    + " at location " + codePath + ", retcode=" + retCode);
9500                            // we don't consider this to be a failure of the core package deletion
9501                        }
9502                    }
9503                }
9504            }
9505        }
9506
9507        boolean doPostDeleteLI(boolean delete) {
9508            // XXX err, shouldn't we respect the delete flag?
9509            cleanUpResourcesLI();
9510            return true;
9511        }
9512    }
9513
9514    private boolean isAsecExternal(String cid) {
9515        final String asecPath = PackageHelper.getSdFilesystem(cid);
9516        return !asecPath.startsWith(mAsecInternalPath);
9517    }
9518
9519    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9520            PackageManagerException {
9521        if (copyRet < 0) {
9522            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9523                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9524                throw new PackageManagerException(copyRet, message);
9525            }
9526        }
9527    }
9528
9529    /**
9530     * Extract the MountService "container ID" from the full code path of an
9531     * .apk.
9532     */
9533    static String cidFromCodePath(String fullCodePath) {
9534        int eidx = fullCodePath.lastIndexOf("/");
9535        String subStr1 = fullCodePath.substring(0, eidx);
9536        int sidx = subStr1.lastIndexOf("/");
9537        return subStr1.substring(sidx+1, eidx);
9538    }
9539
9540    /**
9541     * Logic to handle installation of ASEC applications, including copying and
9542     * renaming logic.
9543     */
9544    class AsecInstallArgs extends InstallArgs {
9545        static final String RES_FILE_NAME = "pkg.apk";
9546        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9547
9548        String cid;
9549        String packagePath;
9550        String resourcePath;
9551        String legacyNativeLibraryDir;
9552
9553        /** New install */
9554        AsecInstallArgs(InstallParams params) {
9555            super(params.origin, params.observer, params.installFlags,
9556                    params.installerPackageName, params.getManifestDigest(),
9557                    params.getUser(), null /* instruction sets */,
9558                    params.packageAbiOverride);
9559        }
9560
9561        /** Existing install */
9562        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9563                        boolean isExternal, boolean isForwardLocked) {
9564            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9565                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9566                    instructionSets, null);
9567            // Hackily pretend we're still looking at a full code path
9568            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9569                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9570            }
9571
9572            // Extract cid from fullCodePath
9573            int eidx = fullCodePath.lastIndexOf("/");
9574            String subStr1 = fullCodePath.substring(0, eidx);
9575            int sidx = subStr1.lastIndexOf("/");
9576            cid = subStr1.substring(sidx+1, eidx);
9577            setMountPath(subStr1);
9578        }
9579
9580        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9581            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9582                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9583                    instructionSets, null);
9584            this.cid = cid;
9585            setMountPath(PackageHelper.getSdDir(cid));
9586        }
9587
9588        void createCopyFile() {
9589            cid = mInstallerService.allocateExternalStageCidLegacy();
9590        }
9591
9592        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9593            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9594                    abiOverride);
9595
9596            final File target;
9597            if (isExternal()) {
9598                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9599            } else {
9600                target = Environment.getDataDirectory();
9601            }
9602
9603            final StorageManager storage = StorageManager.from(mContext);
9604            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9605        }
9606
9607        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9608            if (origin.staged) {
9609                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9610                cid = origin.cid;
9611                setMountPath(PackageHelper.getSdDir(cid));
9612                return PackageManager.INSTALL_SUCCEEDED;
9613            }
9614
9615            if (temp) {
9616                createCopyFile();
9617            } else {
9618                /*
9619                 * Pre-emptively destroy the container since it's destroyed if
9620                 * copying fails due to it existing anyway.
9621                 */
9622                PackageHelper.destroySdDir(cid);
9623            }
9624
9625            final String newMountPath = imcs.copyPackageToContainer(
9626                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9627                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9628
9629            if (newMountPath != null) {
9630                setMountPath(newMountPath);
9631                return PackageManager.INSTALL_SUCCEEDED;
9632            } else {
9633                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9634            }
9635        }
9636
9637        @Override
9638        String getCodePath() {
9639            return packagePath;
9640        }
9641
9642        @Override
9643        String getResourcePath() {
9644            return resourcePath;
9645        }
9646
9647        @Override
9648        String getLegacyNativeLibraryPath() {
9649            return legacyNativeLibraryDir;
9650        }
9651
9652        int doPreInstall(int status) {
9653            if (status != PackageManager.INSTALL_SUCCEEDED) {
9654                // Destroy container
9655                PackageHelper.destroySdDir(cid);
9656            } else {
9657                boolean mounted = PackageHelper.isContainerMounted(cid);
9658                if (!mounted) {
9659                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9660                            Process.SYSTEM_UID);
9661                    if (newMountPath != null) {
9662                        setMountPath(newMountPath);
9663                    } else {
9664                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9665                    }
9666                }
9667            }
9668            return status;
9669        }
9670
9671        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9672            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9673            String newMountPath = null;
9674            if (PackageHelper.isContainerMounted(cid)) {
9675                // Unmount the container
9676                if (!PackageHelper.unMountSdDir(cid)) {
9677                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9678                    return false;
9679                }
9680            }
9681            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9682                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9683                        " which might be stale. Will try to clean up.");
9684                // Clean up the stale container and proceed to recreate.
9685                if (!PackageHelper.destroySdDir(newCacheId)) {
9686                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9687                    return false;
9688                }
9689                // Successfully cleaned up stale container. Try to rename again.
9690                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9691                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9692                            + " inspite of cleaning it up.");
9693                    return false;
9694                }
9695            }
9696            if (!PackageHelper.isContainerMounted(newCacheId)) {
9697                Slog.w(TAG, "Mounting container " + newCacheId);
9698                newMountPath = PackageHelper.mountSdDir(newCacheId,
9699                        getEncryptKey(), Process.SYSTEM_UID);
9700            } else {
9701                newMountPath = PackageHelper.getSdDir(newCacheId);
9702            }
9703            if (newMountPath == null) {
9704                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9705                return false;
9706            }
9707            Log.i(TAG, "Succesfully renamed " + cid +
9708                    " to " + newCacheId +
9709                    " at new path: " + newMountPath);
9710            cid = newCacheId;
9711
9712            final File beforeCodeFile = new File(packagePath);
9713            setMountPath(newMountPath);
9714            final File afterCodeFile = new File(packagePath);
9715
9716            // Reflect the rename in scanned details
9717            pkg.codePath = afterCodeFile.getAbsolutePath();
9718            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9719                    pkg.baseCodePath);
9720            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9721                    pkg.splitCodePaths);
9722
9723            // Reflect the rename in app info
9724            pkg.applicationInfo.setCodePath(pkg.codePath);
9725            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9726            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9727            pkg.applicationInfo.setResourcePath(pkg.codePath);
9728            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9729            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9730
9731            return true;
9732        }
9733
9734        private void setMountPath(String mountPath) {
9735            final File mountFile = new File(mountPath);
9736
9737            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9738            if (monolithicFile.exists()) {
9739                packagePath = monolithicFile.getAbsolutePath();
9740                if (isFwdLocked()) {
9741                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9742                } else {
9743                    resourcePath = packagePath;
9744                }
9745            } else {
9746                packagePath = mountFile.getAbsolutePath();
9747                resourcePath = packagePath;
9748            }
9749
9750            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9751        }
9752
9753        int doPostInstall(int status, int uid) {
9754            if (status != PackageManager.INSTALL_SUCCEEDED) {
9755                cleanUp();
9756            } else {
9757                final int groupOwner;
9758                final String protectedFile;
9759                if (isFwdLocked()) {
9760                    groupOwner = UserHandle.getSharedAppGid(uid);
9761                    protectedFile = RES_FILE_NAME;
9762                } else {
9763                    groupOwner = -1;
9764                    protectedFile = null;
9765                }
9766
9767                if (uid < Process.FIRST_APPLICATION_UID
9768                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9769                    Slog.e(TAG, "Failed to finalize " + cid);
9770                    PackageHelper.destroySdDir(cid);
9771                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9772                }
9773
9774                boolean mounted = PackageHelper.isContainerMounted(cid);
9775                if (!mounted) {
9776                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9777                }
9778            }
9779            return status;
9780        }
9781
9782        private void cleanUp() {
9783            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9784
9785            // Destroy secure container
9786            PackageHelper.destroySdDir(cid);
9787        }
9788
9789        private List<String> getAllCodePaths() {
9790            final File codeFile = new File(getCodePath());
9791            if (codeFile != null && codeFile.exists()) {
9792                try {
9793                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9794                    return pkg.getAllCodePaths();
9795                } catch (PackageParserException e) {
9796                    // Ignored; we tried our best
9797                }
9798            }
9799            return Collections.EMPTY_LIST;
9800        }
9801
9802        void cleanUpResourcesLI() {
9803            // Enumerate all code paths before deleting
9804            cleanUpResourcesLI(getAllCodePaths());
9805        }
9806
9807        private void cleanUpResourcesLI(List<String> allCodePaths) {
9808            cleanUp();
9809
9810            if (!allCodePaths.isEmpty()) {
9811                if (instructionSets == null) {
9812                    throw new IllegalStateException("instructionSet == null");
9813                }
9814                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9815                for (String codePath : allCodePaths) {
9816                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9817                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9818                        if (retCode < 0) {
9819                            Slog.w(TAG, "Couldn't remove dex file for package: "
9820                                    + " at location " + codePath + ", retcode=" + retCode);
9821                            // we don't consider this to be a failure of the core package deletion
9822                        }
9823                    }
9824                }
9825            }
9826        }
9827
9828        boolean matchContainer(String app) {
9829            if (cid.startsWith(app)) {
9830                return true;
9831            }
9832            return false;
9833        }
9834
9835        String getPackageName() {
9836            return getAsecPackageName(cid);
9837        }
9838
9839        boolean doPostDeleteLI(boolean delete) {
9840            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9841            final List<String> allCodePaths = getAllCodePaths();
9842            boolean mounted = PackageHelper.isContainerMounted(cid);
9843            if (mounted) {
9844                // Unmount first
9845                if (PackageHelper.unMountSdDir(cid)) {
9846                    mounted = false;
9847                }
9848            }
9849            if (!mounted && delete) {
9850                cleanUpResourcesLI(allCodePaths);
9851            }
9852            return !mounted;
9853        }
9854
9855        @Override
9856        int doPreCopy() {
9857            if (isFwdLocked()) {
9858                if (!PackageHelper.fixSdPermissions(cid,
9859                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9860                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9861                }
9862            }
9863
9864            return PackageManager.INSTALL_SUCCEEDED;
9865        }
9866
9867        @Override
9868        int doPostCopy(int uid) {
9869            if (isFwdLocked()) {
9870                if (uid < Process.FIRST_APPLICATION_UID
9871                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9872                                RES_FILE_NAME)) {
9873                    Slog.e(TAG, "Failed to finalize " + cid);
9874                    PackageHelper.destroySdDir(cid);
9875                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9876                }
9877            }
9878
9879            return PackageManager.INSTALL_SUCCEEDED;
9880        }
9881    }
9882
9883    static String getAsecPackageName(String packageCid) {
9884        int idx = packageCid.lastIndexOf("-");
9885        if (idx == -1) {
9886            return packageCid;
9887        }
9888        return packageCid.substring(0, idx);
9889    }
9890
9891    // Utility method used to create code paths based on package name and available index.
9892    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9893        String idxStr = "";
9894        int idx = 1;
9895        // Fall back to default value of idx=1 if prefix is not
9896        // part of oldCodePath
9897        if (oldCodePath != null) {
9898            String subStr = oldCodePath;
9899            // Drop the suffix right away
9900            if (suffix != null && subStr.endsWith(suffix)) {
9901                subStr = subStr.substring(0, subStr.length() - suffix.length());
9902            }
9903            // If oldCodePath already contains prefix find out the
9904            // ending index to either increment or decrement.
9905            int sidx = subStr.lastIndexOf(prefix);
9906            if (sidx != -1) {
9907                subStr = subStr.substring(sidx + prefix.length());
9908                if (subStr != null) {
9909                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9910                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9911                    }
9912                    try {
9913                        idx = Integer.parseInt(subStr);
9914                        if (idx <= 1) {
9915                            idx++;
9916                        } else {
9917                            idx--;
9918                        }
9919                    } catch(NumberFormatException e) {
9920                    }
9921                }
9922            }
9923        }
9924        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9925        return prefix + idxStr;
9926    }
9927
9928    private File getNextCodePath(String packageName) {
9929        int suffix = 1;
9930        File result;
9931        do {
9932            result = new File(mAppInstallDir, packageName + "-" + suffix);
9933            suffix++;
9934        } while (result.exists());
9935        return result;
9936    }
9937
9938    // Utility method used to ignore ADD/REMOVE events
9939    // by directory observer.
9940    private static boolean ignoreCodePath(String fullPathStr) {
9941        String apkName = deriveCodePathName(fullPathStr);
9942        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9943        if (idx != -1 && ((idx+1) < apkName.length())) {
9944            // Make sure the package ends with a numeral
9945            String version = apkName.substring(idx+1);
9946            try {
9947                Integer.parseInt(version);
9948                return true;
9949            } catch (NumberFormatException e) {}
9950        }
9951        return false;
9952    }
9953
9954    // Utility method that returns the relative package path with respect
9955    // to the installation directory. Like say for /data/data/com.test-1.apk
9956    // string com.test-1 is returned.
9957    static String deriveCodePathName(String codePath) {
9958        if (codePath == null) {
9959            return null;
9960        }
9961        final File codeFile = new File(codePath);
9962        final String name = codeFile.getName();
9963        if (codeFile.isDirectory()) {
9964            return name;
9965        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9966            final int lastDot = name.lastIndexOf('.');
9967            return name.substring(0, lastDot);
9968        } else {
9969            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9970            return null;
9971        }
9972    }
9973
9974    class PackageInstalledInfo {
9975        String name;
9976        int uid;
9977        // The set of users that originally had this package installed.
9978        int[] origUsers;
9979        // The set of users that now have this package installed.
9980        int[] newUsers;
9981        PackageParser.Package pkg;
9982        int returnCode;
9983        String returnMsg;
9984        PackageRemovedInfo removedInfo;
9985
9986        public void setError(int code, String msg) {
9987            returnCode = code;
9988            returnMsg = msg;
9989            Slog.w(TAG, msg);
9990        }
9991
9992        public void setError(String msg, PackageParserException e) {
9993            returnCode = e.error;
9994            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9995            Slog.w(TAG, msg, e);
9996        }
9997
9998        public void setError(String msg, PackageManagerException e) {
9999            returnCode = e.error;
10000            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
10001            Slog.w(TAG, msg, e);
10002        }
10003
10004        // In some error cases we want to convey more info back to the observer
10005        String origPackage;
10006        String origPermission;
10007    }
10008
10009    /*
10010     * Install a non-existing package.
10011     */
10012    private void installNewPackageLI(PackageParser.Package pkg,
10013            int parseFlags, int scanFlags, UserHandle user,
10014            String installerPackageName, PackageInstalledInfo res) {
10015        // Remember this for later, in case we need to rollback this install
10016        String pkgName = pkg.packageName;
10017
10018        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
10019        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
10020        synchronized(mPackages) {
10021            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
10022                // A package with the same name is already installed, though
10023                // it has been renamed to an older name.  The package we
10024                // are trying to install should be installed as an update to
10025                // the existing one, but that has not been requested, so bail.
10026                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10027                        + " without first uninstalling package running as "
10028                        + mSettings.mRenamedPackages.get(pkgName));
10029                return;
10030            }
10031            if (mPackages.containsKey(pkgName)) {
10032                // Don't allow installation over an existing package with the same name.
10033                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
10034                        + " without first uninstalling.");
10035                return;
10036            }
10037        }
10038
10039        try {
10040            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
10041                    System.currentTimeMillis(), user);
10042
10043            updateSettingsLI(newPackage, installerPackageName, null, null, res);
10044            // delete the partially installed application. the data directory will have to be
10045            // restored if it was already existing
10046            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10047                // remove package from internal structures.  Note that we want deletePackageX to
10048                // delete the package data and cache directories that it created in
10049                // scanPackageLocked, unless those directories existed before we even tried to
10050                // install.
10051                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
10052                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
10053                                res.removedInfo, true);
10054            }
10055
10056        } catch (PackageManagerException e) {
10057            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10058        }
10059    }
10060
10061    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
10062        // Upgrade keysets are being used.  Determine if new package has a superset of the
10063        // required keys.
10064        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
10065        KeySetManagerService ksms = mSettings.mKeySetManagerService;
10066        for (int i = 0; i < upgradeKeySets.length; i++) {
10067            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
10068            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
10069                return true;
10070            }
10071        }
10072        return false;
10073    }
10074
10075    private void replacePackageLI(PackageParser.Package pkg,
10076            int parseFlags, int scanFlags, UserHandle user,
10077            String installerPackageName, PackageInstalledInfo res) {
10078        PackageParser.Package oldPackage;
10079        String pkgName = pkg.packageName;
10080        int[] allUsers;
10081        boolean[] perUserInstalled;
10082
10083        // First find the old package info and check signatures
10084        synchronized(mPackages) {
10085            oldPackage = mPackages.get(pkgName);
10086            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10087            PackageSetting ps = mSettings.mPackages.get(pkgName);
10088            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10089                // default to original signature matching
10090                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10091                    != PackageManager.SIGNATURE_MATCH) {
10092                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10093                            "New package has a different signature: " + pkgName);
10094                    return;
10095                }
10096            } else {
10097                if(!checkUpgradeKeySetLP(ps, pkg)) {
10098                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10099                            "New package not signed by keys specified by upgrade-keysets: "
10100                            + pkgName);
10101                    return;
10102                }
10103            }
10104
10105            // In case of rollback, remember per-user/profile install state
10106            allUsers = sUserManager.getUserIds();
10107            perUserInstalled = new boolean[allUsers.length];
10108            for (int i = 0; i < allUsers.length; i++) {
10109                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10110            }
10111        }
10112
10113        boolean sysPkg = (isSystemApp(oldPackage));
10114        if (sysPkg) {
10115            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10116                    user, allUsers, perUserInstalled, installerPackageName, res);
10117        } else {
10118            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10119                    user, allUsers, perUserInstalled, installerPackageName, res);
10120        }
10121    }
10122
10123    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10124            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10125            int[] allUsers, boolean[] perUserInstalled,
10126            String installerPackageName, PackageInstalledInfo res) {
10127        String pkgName = deletedPackage.packageName;
10128        boolean deletedPkg = true;
10129        boolean updatedSettings = false;
10130
10131        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10132                + deletedPackage);
10133        long origUpdateTime;
10134        if (pkg.mExtras != null) {
10135            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10136        } else {
10137            origUpdateTime = 0;
10138        }
10139
10140        // First delete the existing package while retaining the data directory
10141        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10142                res.removedInfo, true)) {
10143            // If the existing package wasn't successfully deleted
10144            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10145            deletedPkg = false;
10146        } else {
10147            // Successfully deleted the old package; proceed with replace.
10148
10149            // If deleted package lived in a container, give users a chance to
10150            // relinquish resources before killing.
10151            if (isForwardLocked(deletedPackage) || isExternal(deletedPackage)) {
10152                if (DEBUG_INSTALL) {
10153                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10154                }
10155                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10156                final ArrayList<String> pkgList = new ArrayList<String>(1);
10157                pkgList.add(deletedPackage.applicationInfo.packageName);
10158                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10159            }
10160
10161            deleteCodeCacheDirsLI(pkgName);
10162            try {
10163                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10164                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10165                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10166                updatedSettings = true;
10167            } catch (PackageManagerException e) {
10168                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10169            }
10170        }
10171
10172        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10173            // remove package from internal structures.  Note that we want deletePackageX to
10174            // delete the package data and cache directories that it created in
10175            // scanPackageLocked, unless those directories existed before we even tried to
10176            // install.
10177            if(updatedSettings) {
10178                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10179                deletePackageLI(
10180                        pkgName, null, true, allUsers, perUserInstalled,
10181                        PackageManager.DELETE_KEEP_DATA,
10182                                res.removedInfo, true);
10183            }
10184            // Since we failed to install the new package we need to restore the old
10185            // package that we deleted.
10186            if (deletedPkg) {
10187                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10188                File restoreFile = new File(deletedPackage.codePath);
10189                // Parse old package
10190                boolean oldOnSd = isExternal(deletedPackage);
10191                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10192                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10193                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10194                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10195                try {
10196                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10197                } catch (PackageManagerException e) {
10198                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10199                            + e.getMessage());
10200                    return;
10201                }
10202                // Restore of old package succeeded. Update permissions.
10203                // writer
10204                synchronized (mPackages) {
10205                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10206                            UPDATE_PERMISSIONS_ALL);
10207                    // can downgrade to reader
10208                    mSettings.writeLPr();
10209                }
10210                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10211            }
10212        }
10213    }
10214
10215    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10216            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10217            int[] allUsers, boolean[] perUserInstalled,
10218            String installerPackageName, PackageInstalledInfo res) {
10219        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10220                + ", old=" + deletedPackage);
10221        boolean disabledSystem = false;
10222        boolean updatedSettings = false;
10223        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10224        if ((deletedPackage.applicationInfo.flags&ApplicationInfo.FLAG_PRIVILEGED) != 0) {
10225            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10226        }
10227        String packageName = deletedPackage.packageName;
10228        if (packageName == null) {
10229            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10230                    "Attempt to delete null packageName.");
10231            return;
10232        }
10233        PackageParser.Package oldPkg;
10234        PackageSetting oldPkgSetting;
10235        // reader
10236        synchronized (mPackages) {
10237            oldPkg = mPackages.get(packageName);
10238            oldPkgSetting = mSettings.mPackages.get(packageName);
10239            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10240                    (oldPkgSetting == null)) {
10241                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10242                        "Couldn't find package:" + packageName + " information");
10243                return;
10244            }
10245        }
10246
10247        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10248
10249        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10250        res.removedInfo.removedPackage = packageName;
10251        // Remove existing system package
10252        removePackageLI(oldPkgSetting, true);
10253        // writer
10254        synchronized (mPackages) {
10255            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10256            if (!disabledSystem && deletedPackage != null) {
10257                // We didn't need to disable the .apk as a current system package,
10258                // which means we are replacing another update that is already
10259                // installed.  We need to make sure to delete the older one's .apk.
10260                res.removedInfo.args = createInstallArgsForExisting(0,
10261                        deletedPackage.applicationInfo.getCodePath(),
10262                        deletedPackage.applicationInfo.getResourcePath(),
10263                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10264                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10265            } else {
10266                res.removedInfo.args = null;
10267            }
10268        }
10269
10270        // Successfully disabled the old package. Now proceed with re-installation
10271        deleteCodeCacheDirsLI(packageName);
10272
10273        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10274        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10275
10276        PackageParser.Package newPackage = null;
10277        try {
10278            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10279            if (newPackage.mExtras != null) {
10280                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10281                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10282                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10283
10284                // is the update attempting to change shared user? that isn't going to work...
10285                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10286                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10287                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10288                            + " to " + newPkgSetting.sharedUser);
10289                    updatedSettings = true;
10290                }
10291            }
10292
10293            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10294                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10295                updatedSettings = true;
10296            }
10297
10298        } catch (PackageManagerException e) {
10299            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10300        }
10301
10302        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10303            // Re installation failed. Restore old information
10304            // Remove new pkg information
10305            if (newPackage != null) {
10306                removeInstalledPackageLI(newPackage, true);
10307            }
10308            // Add back the old system package
10309            try {
10310                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10311            } catch (PackageManagerException e) {
10312                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10313            }
10314            // Restore the old system information in Settings
10315            synchronized (mPackages) {
10316                if (disabledSystem) {
10317                    mSettings.enableSystemPackageLPw(packageName);
10318                }
10319                if (updatedSettings) {
10320                    mSettings.setInstallerPackageName(packageName,
10321                            oldPkgSetting.installerPackageName);
10322                }
10323                mSettings.writeLPr();
10324            }
10325        }
10326    }
10327
10328    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10329            int[] allUsers, boolean[] perUserInstalled,
10330            PackageInstalledInfo res) {
10331        String pkgName = newPackage.packageName;
10332        synchronized (mPackages) {
10333            //write settings. the installStatus will be incomplete at this stage.
10334            //note that the new package setting would have already been
10335            //added to mPackages. It hasn't been persisted yet.
10336            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10337            mSettings.writeLPr();
10338        }
10339
10340        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10341
10342        synchronized (mPackages) {
10343            updatePermissionsLPw(newPackage.packageName, newPackage,
10344                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10345                            ? UPDATE_PERMISSIONS_ALL : 0));
10346            // For system-bundled packages, we assume that installing an upgraded version
10347            // of the package implies that the user actually wants to run that new code,
10348            // so we enable the package.
10349            if (isSystemApp(newPackage)) {
10350                // NB: implicit assumption that system package upgrades apply to all users
10351                if (DEBUG_INSTALL) {
10352                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10353                }
10354                PackageSetting ps = mSettings.mPackages.get(pkgName);
10355                if (ps != null) {
10356                    if (res.origUsers != null) {
10357                        for (int userHandle : res.origUsers) {
10358                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10359                                    userHandle, installerPackageName);
10360                        }
10361                    }
10362                    // Also convey the prior install/uninstall state
10363                    if (allUsers != null && perUserInstalled != null) {
10364                        for (int i = 0; i < allUsers.length; i++) {
10365                            if (DEBUG_INSTALL) {
10366                                Slog.d(TAG, "    user " + allUsers[i]
10367                                        + " => " + perUserInstalled[i]);
10368                            }
10369                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10370                        }
10371                        // these install state changes will be persisted in the
10372                        // upcoming call to mSettings.writeLPr().
10373                    }
10374                }
10375            }
10376            res.name = pkgName;
10377            res.uid = newPackage.applicationInfo.uid;
10378            res.pkg = newPackage;
10379            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10380            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10381            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10382            //to update install status
10383            mSettings.writeLPr();
10384        }
10385    }
10386
10387    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10388        final int installFlags = args.installFlags;
10389        String installerPackageName = args.installerPackageName;
10390        File tmpPackageFile = new File(args.getCodePath());
10391        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10392        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10393        boolean replace = false;
10394        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10395        // Result object to be returned
10396        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10397
10398        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10399        // Retrieve PackageSettings and parse package
10400        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10401                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10402                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10403        PackageParser pp = new PackageParser();
10404        pp.setSeparateProcesses(mSeparateProcesses);
10405        pp.setDisplayMetrics(mMetrics);
10406
10407        final PackageParser.Package pkg;
10408        try {
10409            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10410        } catch (PackageParserException e) {
10411            res.setError("Failed parse during installPackageLI", e);
10412            return;
10413        }
10414
10415        // Mark that we have an install time CPU ABI override.
10416        pkg.cpuAbiOverride = args.abiOverride;
10417
10418        String pkgName = res.name = pkg.packageName;
10419        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10420            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10421                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10422                return;
10423            }
10424        }
10425
10426        try {
10427            pp.collectCertificates(pkg, parseFlags);
10428            pp.collectManifestDigest(pkg);
10429        } catch (PackageParserException e) {
10430            res.setError("Failed collect during installPackageLI", e);
10431            return;
10432        }
10433
10434        /* If the installer passed in a manifest digest, compare it now. */
10435        if (args.manifestDigest != null) {
10436            if (DEBUG_INSTALL) {
10437                final String parsedManifest = pkg.manifestDigest == null ? "null"
10438                        : pkg.manifestDigest.toString();
10439                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10440                        + parsedManifest);
10441            }
10442
10443            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10444                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10445                return;
10446            }
10447        } else if (DEBUG_INSTALL) {
10448            final String parsedManifest = pkg.manifestDigest == null
10449                    ? "null" : pkg.manifestDigest.toString();
10450            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10451        }
10452
10453        // Get rid of all references to package scan path via parser.
10454        pp = null;
10455        String oldCodePath = null;
10456        boolean systemApp = false;
10457        synchronized (mPackages) {
10458            // Check if installing already existing package
10459            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10460                String oldName = mSettings.mRenamedPackages.get(pkgName);
10461                if (pkg.mOriginalPackages != null
10462                        && pkg.mOriginalPackages.contains(oldName)
10463                        && mPackages.containsKey(oldName)) {
10464                    // This package is derived from an original package,
10465                    // and this device has been updating from that original
10466                    // name.  We must continue using the original name, so
10467                    // rename the new package here.
10468                    pkg.setPackageName(oldName);
10469                    pkgName = pkg.packageName;
10470                    replace = true;
10471                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10472                            + oldName + " pkgName=" + pkgName);
10473                } else if (mPackages.containsKey(pkgName)) {
10474                    // This package, under its official name, already exists
10475                    // on the device; we should replace it.
10476                    replace = true;
10477                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10478                }
10479            }
10480
10481            PackageSetting ps = mSettings.mPackages.get(pkgName);
10482            if (ps != null) {
10483                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10484
10485                // Quick sanity check that we're signed correctly if updating;
10486                // we'll check this again later when scanning, but we want to
10487                // bail early here before tripping over redefined permissions.
10488                if (!ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10489                    try {
10490                        verifySignaturesLP(ps, pkg);
10491                    } catch (PackageManagerException e) {
10492                        res.setError(e.error, e.getMessage());
10493                        return;
10494                    }
10495                } else {
10496                    if (!checkUpgradeKeySetLP(ps, pkg)) {
10497                        res.setError(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
10498                                + pkg.packageName + " upgrade keys do not match the "
10499                                + "previously installed version");
10500                        return;
10501                    }
10502                }
10503
10504                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10505                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10506                    systemApp = (ps.pkg.applicationInfo.flags &
10507                            ApplicationInfo.FLAG_SYSTEM) != 0;
10508                }
10509                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10510            }
10511
10512            // Check whether the newly-scanned package wants to define an already-defined perm
10513            int N = pkg.permissions.size();
10514            for (int i = N-1; i >= 0; i--) {
10515                PackageParser.Permission perm = pkg.permissions.get(i);
10516                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10517                if (bp != null) {
10518                    // If the defining package is signed with our cert, it's okay.  This
10519                    // also includes the "updating the same package" case, of course.
10520                    // "updating same package" could also involve key-rotation.
10521                    final boolean sigsOk;
10522                    if (!bp.sourcePackage.equals(pkg.packageName)
10523                            || !(bp.packageSetting instanceof PackageSetting)
10524                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10525                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10526                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10527                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10528                    } else {
10529                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10530                    }
10531                    if (!sigsOk) {
10532                        // If the owning package is the system itself, we log but allow
10533                        // install to proceed; we fail the install on all other permission
10534                        // redefinitions.
10535                        if (!bp.sourcePackage.equals("android")) {
10536                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10537                                    + pkg.packageName + " attempting to redeclare permission "
10538                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10539                            res.origPermission = perm.info.name;
10540                            res.origPackage = bp.sourcePackage;
10541                            return;
10542                        } else {
10543                            Slog.w(TAG, "Package " + pkg.packageName
10544                                    + " attempting to redeclare system permission "
10545                                    + perm.info.name + "; ignoring new declaration");
10546                            pkg.permissions.remove(i);
10547                        }
10548                    }
10549                }
10550            }
10551
10552        }
10553
10554        if (systemApp && onSd) {
10555            // Disable updates to system apps on sdcard
10556            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10557                    "Cannot install updates to system apps on sdcard");
10558            return;
10559        }
10560
10561        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10562            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10563            return;
10564        }
10565
10566        if (replace) {
10567            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10568                    installerPackageName, res);
10569        } else {
10570            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10571                    args.user, installerPackageName, res);
10572        }
10573        synchronized (mPackages) {
10574            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10575            if (ps != null) {
10576                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10577            }
10578        }
10579    }
10580
10581    private static boolean isForwardLocked(PackageParser.Package pkg) {
10582        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10583    }
10584
10585    private static boolean isForwardLocked(ApplicationInfo info) {
10586        return (info.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10587    }
10588
10589    private boolean isForwardLocked(PackageSetting ps) {
10590        return (ps.pkgFlags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10591    }
10592
10593    private static boolean isMultiArch(PackageSetting ps) {
10594        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10595    }
10596
10597    private static boolean isMultiArch(ApplicationInfo info) {
10598        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10599    }
10600
10601    private static boolean isExternal(PackageParser.Package pkg) {
10602        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10603    }
10604
10605    private static boolean isExternal(PackageSetting ps) {
10606        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10607    }
10608
10609    private static boolean isExternal(ApplicationInfo info) {
10610        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10611    }
10612
10613    private static boolean isSystemApp(PackageParser.Package pkg) {
10614        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10615    }
10616
10617    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10618        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_PRIVILEGED) != 0;
10619    }
10620
10621    private static boolean isSystemApp(ApplicationInfo info) {
10622        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10623    }
10624
10625    private static boolean isSystemApp(PackageSetting ps) {
10626        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10627    }
10628
10629    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10630        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10631    }
10632
10633    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10634        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10635    }
10636
10637    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10638        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10639    }
10640
10641    private int packageFlagsToInstallFlags(PackageSetting ps) {
10642        int installFlags = 0;
10643        if (isExternal(ps)) {
10644            installFlags |= PackageManager.INSTALL_EXTERNAL;
10645        }
10646        if (isForwardLocked(ps)) {
10647            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10648        }
10649        return installFlags;
10650    }
10651
10652    private void deleteTempPackageFiles() {
10653        final FilenameFilter filter = new FilenameFilter() {
10654            public boolean accept(File dir, String name) {
10655                return name.startsWith("vmdl") && name.endsWith(".tmp");
10656            }
10657        };
10658        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10659            file.delete();
10660        }
10661    }
10662
10663    @Override
10664    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10665            int flags) {
10666        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10667                flags);
10668    }
10669
10670    @Override
10671    public void deletePackage(final String packageName,
10672            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10673        mContext.enforceCallingOrSelfPermission(
10674                android.Manifest.permission.DELETE_PACKAGES, null);
10675        final int uid = Binder.getCallingUid();
10676        if (UserHandle.getUserId(uid) != userId) {
10677            mContext.enforceCallingPermission(
10678                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10679                    "deletePackage for user " + userId);
10680        }
10681        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10682            try {
10683                observer.onPackageDeleted(packageName,
10684                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10685            } catch (RemoteException re) {
10686            }
10687            return;
10688        }
10689
10690        boolean uninstallBlocked = false;
10691        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10692            int[] users = sUserManager.getUserIds();
10693            for (int i = 0; i < users.length; ++i) {
10694                if (getBlockUninstallForUser(packageName, users[i])) {
10695                    uninstallBlocked = true;
10696                    break;
10697                }
10698            }
10699        } else {
10700            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10701        }
10702        if (uninstallBlocked) {
10703            try {
10704                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10705                        null);
10706            } catch (RemoteException re) {
10707            }
10708            return;
10709        }
10710
10711        if (DEBUG_REMOVE) {
10712            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10713        }
10714        // Queue up an async operation since the package deletion may take a little while.
10715        mHandler.post(new Runnable() {
10716            public void run() {
10717                mHandler.removeCallbacks(this);
10718                final int returnCode = deletePackageX(packageName, userId, flags);
10719                if (observer != null) {
10720                    try {
10721                        observer.onPackageDeleted(packageName, returnCode, null);
10722                    } catch (RemoteException e) {
10723                        Log.i(TAG, "Observer no longer exists.");
10724                    } //end catch
10725                } //end if
10726            } //end run
10727        });
10728    }
10729
10730    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10731        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10732                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10733        try {
10734            if (dpm != null) {
10735                if (dpm.isDeviceOwner(packageName)) {
10736                    return true;
10737                }
10738                int[] users;
10739                if (userId == UserHandle.USER_ALL) {
10740                    users = sUserManager.getUserIds();
10741                } else {
10742                    users = new int[]{userId};
10743                }
10744                for (int i = 0; i < users.length; ++i) {
10745                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10746                        return true;
10747                    }
10748                }
10749            }
10750        } catch (RemoteException e) {
10751        }
10752        return false;
10753    }
10754
10755    /**
10756     *  This method is an internal method that could be get invoked either
10757     *  to delete an installed package or to clean up a failed installation.
10758     *  After deleting an installed package, a broadcast is sent to notify any
10759     *  listeners that the package has been installed. For cleaning up a failed
10760     *  installation, the broadcast is not necessary since the package's
10761     *  installation wouldn't have sent the initial broadcast either
10762     *  The key steps in deleting a package are
10763     *  deleting the package information in internal structures like mPackages,
10764     *  deleting the packages base directories through installd
10765     *  updating mSettings to reflect current status
10766     *  persisting settings for later use
10767     *  sending a broadcast if necessary
10768     */
10769    private int deletePackageX(String packageName, int userId, int flags) {
10770        final PackageRemovedInfo info = new PackageRemovedInfo();
10771        final boolean res;
10772
10773        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10774                ? UserHandle.ALL : new UserHandle(userId);
10775
10776        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10777            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10778            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10779        }
10780
10781        boolean removedForAllUsers = false;
10782        boolean systemUpdate = false;
10783
10784        // for the uninstall-updates case and restricted profiles, remember the per-
10785        // userhandle installed state
10786        int[] allUsers;
10787        boolean[] perUserInstalled;
10788        synchronized (mPackages) {
10789            PackageSetting ps = mSettings.mPackages.get(packageName);
10790            allUsers = sUserManager.getUserIds();
10791            perUserInstalled = new boolean[allUsers.length];
10792            for (int i = 0; i < allUsers.length; i++) {
10793                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10794            }
10795        }
10796
10797        synchronized (mInstallLock) {
10798            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10799            res = deletePackageLI(packageName, removeForUser,
10800                    true, allUsers, perUserInstalled,
10801                    flags | REMOVE_CHATTY, info, true);
10802            systemUpdate = info.isRemovedPackageSystemUpdate;
10803            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10804                removedForAllUsers = true;
10805            }
10806            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10807                    + " removedForAllUsers=" + removedForAllUsers);
10808        }
10809
10810        if (res) {
10811            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10812
10813            // If the removed package was a system update, the old system package
10814            // was re-enabled; we need to broadcast this information
10815            if (systemUpdate) {
10816                Bundle extras = new Bundle(1);
10817                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10818                        ? info.removedAppId : info.uid);
10819                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10820
10821                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10822                        extras, null, null, null);
10823                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10824                        extras, null, null, null);
10825                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10826                        null, packageName, null, null);
10827            }
10828        }
10829        // Force a gc here.
10830        Runtime.getRuntime().gc();
10831        // Delete the resources here after sending the broadcast to let
10832        // other processes clean up before deleting resources.
10833        if (info.args != null) {
10834            synchronized (mInstallLock) {
10835                info.args.doPostDeleteLI(true);
10836            }
10837        }
10838
10839        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10840    }
10841
10842    static class PackageRemovedInfo {
10843        String removedPackage;
10844        int uid = -1;
10845        int removedAppId = -1;
10846        int[] removedUsers = null;
10847        boolean isRemovedPackageSystemUpdate = false;
10848        // Clean up resources deleted packages.
10849        InstallArgs args = null;
10850
10851        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10852            Bundle extras = new Bundle(1);
10853            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10854            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10855            if (replacing) {
10856                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10857            }
10858            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10859            if (removedPackage != null) {
10860                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10861                        extras, null, null, removedUsers);
10862                if (fullRemove && !replacing) {
10863                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10864                            extras, null, null, removedUsers);
10865                }
10866            }
10867            if (removedAppId >= 0) {
10868                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10869                        removedUsers);
10870            }
10871        }
10872    }
10873
10874    /*
10875     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10876     * flag is not set, the data directory is removed as well.
10877     * make sure this flag is set for partially installed apps. If not its meaningless to
10878     * delete a partially installed application.
10879     */
10880    private void removePackageDataLI(PackageSetting ps,
10881            int[] allUserHandles, boolean[] perUserInstalled,
10882            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10883        String packageName = ps.name;
10884        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10885        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10886        // Retrieve object to delete permissions for shared user later on
10887        final PackageSetting deletedPs;
10888        // reader
10889        synchronized (mPackages) {
10890            deletedPs = mSettings.mPackages.get(packageName);
10891            if (outInfo != null) {
10892                outInfo.removedPackage = packageName;
10893                outInfo.removedUsers = deletedPs != null
10894                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10895                        : null;
10896            }
10897        }
10898        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10899            removeDataDirsLI(packageName);
10900            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10901        }
10902        // writer
10903        synchronized (mPackages) {
10904            if (deletedPs != null) {
10905                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10906                    if (outInfo != null) {
10907                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10908                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10909                    }
10910                    if (deletedPs != null) {
10911                        updatePermissionsLPw(deletedPs.name, null, 0);
10912                        if (deletedPs.sharedUser != null) {
10913                            // remove permissions associated with package
10914                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10915                        }
10916                    }
10917                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10918                }
10919                // make sure to preserve per-user disabled state if this removal was just
10920                // a downgrade of a system app to the factory package
10921                if (allUserHandles != null && perUserInstalled != null) {
10922                    if (DEBUG_REMOVE) {
10923                        Slog.d(TAG, "Propagating install state across downgrade");
10924                    }
10925                    for (int i = 0; i < allUserHandles.length; i++) {
10926                        if (DEBUG_REMOVE) {
10927                            Slog.d(TAG, "    user " + allUserHandles[i]
10928                                    + " => " + perUserInstalled[i]);
10929                        }
10930                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10931                    }
10932                }
10933            }
10934            // can downgrade to reader
10935            if (writeSettings) {
10936                // Save settings now
10937                mSettings.writeLPr();
10938            }
10939        }
10940        if (outInfo != null) {
10941            // A user ID was deleted here. Go through all users and remove it
10942            // from KeyStore.
10943            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10944        }
10945    }
10946
10947    static boolean locationIsPrivileged(File path) {
10948        try {
10949            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10950                    .getCanonicalPath();
10951            return path.getCanonicalPath().startsWith(privilegedAppDir);
10952        } catch (IOException e) {
10953            Slog.e(TAG, "Unable to access code path " + path);
10954        }
10955        return false;
10956    }
10957
10958    /*
10959     * Tries to delete system package.
10960     */
10961    private boolean deleteSystemPackageLI(PackageSetting newPs,
10962            int[] allUserHandles, boolean[] perUserInstalled,
10963            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10964        final boolean applyUserRestrictions
10965                = (allUserHandles != null) && (perUserInstalled != null);
10966        PackageSetting disabledPs = null;
10967        // Confirm if the system package has been updated
10968        // An updated system app can be deleted. This will also have to restore
10969        // the system pkg from system partition
10970        // reader
10971        synchronized (mPackages) {
10972            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10973        }
10974        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10975                + " disabledPs=" + disabledPs);
10976        if (disabledPs == null) {
10977            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10978            return false;
10979        } else if (DEBUG_REMOVE) {
10980            Slog.d(TAG, "Deleting system pkg from data partition");
10981        }
10982        if (DEBUG_REMOVE) {
10983            if (applyUserRestrictions) {
10984                Slog.d(TAG, "Remembering install states:");
10985                for (int i = 0; i < allUserHandles.length; i++) {
10986                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10987                }
10988            }
10989        }
10990        // Delete the updated package
10991        outInfo.isRemovedPackageSystemUpdate = true;
10992        if (disabledPs.versionCode < newPs.versionCode) {
10993            // Delete data for downgrades
10994            flags &= ~PackageManager.DELETE_KEEP_DATA;
10995        } else {
10996            // Preserve data by setting flag
10997            flags |= PackageManager.DELETE_KEEP_DATA;
10998        }
10999        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
11000                allUserHandles, perUserInstalled, outInfo, writeSettings);
11001        if (!ret) {
11002            return false;
11003        }
11004        // writer
11005        synchronized (mPackages) {
11006            // Reinstate the old system package
11007            mSettings.enableSystemPackageLPw(newPs.name);
11008            // Remove any native libraries from the upgraded package.
11009            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
11010        }
11011        // Install the system package
11012        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
11013        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
11014        if (locationIsPrivileged(disabledPs.codePath)) {
11015            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
11016        }
11017
11018        final PackageParser.Package newPkg;
11019        try {
11020            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
11021        } catch (PackageManagerException e) {
11022            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
11023            return false;
11024        }
11025
11026        // writer
11027        synchronized (mPackages) {
11028            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
11029            updatePermissionsLPw(newPkg.packageName, newPkg,
11030                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
11031            if (applyUserRestrictions) {
11032                if (DEBUG_REMOVE) {
11033                    Slog.d(TAG, "Propagating install state across reinstall");
11034                }
11035                for (int i = 0; i < allUserHandles.length; i++) {
11036                    if (DEBUG_REMOVE) {
11037                        Slog.d(TAG, "    user " + allUserHandles[i]
11038                                + " => " + perUserInstalled[i]);
11039                    }
11040                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
11041                }
11042                // Regardless of writeSettings we need to ensure that this restriction
11043                // state propagation is persisted
11044                mSettings.writeAllUsersPackageRestrictionsLPr();
11045            }
11046            // can downgrade to reader here
11047            if (writeSettings) {
11048                mSettings.writeLPr();
11049            }
11050        }
11051        return true;
11052    }
11053
11054    private boolean deleteInstalledPackageLI(PackageSetting ps,
11055            boolean deleteCodeAndResources, int flags,
11056            int[] allUserHandles, boolean[] perUserInstalled,
11057            PackageRemovedInfo outInfo, boolean writeSettings) {
11058        if (outInfo != null) {
11059            outInfo.uid = ps.appId;
11060        }
11061
11062        // Delete package data from internal structures and also remove data if flag is set
11063        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
11064
11065        // Delete application code and resources
11066        if (deleteCodeAndResources && (outInfo != null)) {
11067            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
11068                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
11069                    getAppDexInstructionSets(ps));
11070            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
11071        }
11072        return true;
11073    }
11074
11075    @Override
11076    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
11077            int userId) {
11078        mContext.enforceCallingOrSelfPermission(
11079                android.Manifest.permission.DELETE_PACKAGES, null);
11080        synchronized (mPackages) {
11081            PackageSetting ps = mSettings.mPackages.get(packageName);
11082            if (ps == null) {
11083                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
11084                return false;
11085            }
11086            if (!ps.getInstalled(userId)) {
11087                // Can't block uninstall for an app that is not installed or enabled.
11088                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11089                return false;
11090            }
11091            ps.setBlockUninstall(blockUninstall, userId);
11092            mSettings.writePackageRestrictionsLPr(userId);
11093        }
11094        return true;
11095    }
11096
11097    @Override
11098    public boolean getBlockUninstallForUser(String packageName, int userId) {
11099        synchronized (mPackages) {
11100            PackageSetting ps = mSettings.mPackages.get(packageName);
11101            if (ps == null) {
11102                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11103                return false;
11104            }
11105            return ps.getBlockUninstall(userId);
11106        }
11107    }
11108
11109    /*
11110     * This method handles package deletion in general
11111     */
11112    private boolean deletePackageLI(String packageName, UserHandle user,
11113            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11114            int flags, PackageRemovedInfo outInfo,
11115            boolean writeSettings) {
11116        if (packageName == null) {
11117            Slog.w(TAG, "Attempt to delete null packageName.");
11118            return false;
11119        }
11120        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11121        PackageSetting ps;
11122        boolean dataOnly = false;
11123        int removeUser = -1;
11124        int appId = -1;
11125        synchronized (mPackages) {
11126            ps = mSettings.mPackages.get(packageName);
11127            if (ps == null) {
11128                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11129                return false;
11130            }
11131            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11132                    && user.getIdentifier() != UserHandle.USER_ALL) {
11133                // The caller is asking that the package only be deleted for a single
11134                // user.  To do this, we just mark its uninstalled state and delete
11135                // its data.  If this is a system app, we only allow this to happen if
11136                // they have set the special DELETE_SYSTEM_APP which requests different
11137                // semantics than normal for uninstalling system apps.
11138                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11139                ps.setUserState(user.getIdentifier(),
11140                        COMPONENT_ENABLED_STATE_DEFAULT,
11141                        false, //installed
11142                        true,  //stopped
11143                        true,  //notLaunched
11144                        false, //hidden
11145                        null, null, null,
11146                        false // blockUninstall
11147                        );
11148                if (!isSystemApp(ps)) {
11149                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11150                        // Other user still have this package installed, so all
11151                        // we need to do is clear this user's data and save that
11152                        // it is uninstalled.
11153                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11154                        removeUser = user.getIdentifier();
11155                        appId = ps.appId;
11156                        mSettings.writePackageRestrictionsLPr(removeUser);
11157                    } else {
11158                        // We need to set it back to 'installed' so the uninstall
11159                        // broadcasts will be sent correctly.
11160                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11161                        ps.setInstalled(true, user.getIdentifier());
11162                    }
11163                } else {
11164                    // This is a system app, so we assume that the
11165                    // other users still have this package installed, so all
11166                    // we need to do is clear this user's data and save that
11167                    // it is uninstalled.
11168                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11169                    removeUser = user.getIdentifier();
11170                    appId = ps.appId;
11171                    mSettings.writePackageRestrictionsLPr(removeUser);
11172                }
11173            }
11174        }
11175
11176        if (removeUser >= 0) {
11177            // From above, we determined that we are deleting this only
11178            // for a single user.  Continue the work here.
11179            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11180            if (outInfo != null) {
11181                outInfo.removedPackage = packageName;
11182                outInfo.removedAppId = appId;
11183                outInfo.removedUsers = new int[] {removeUser};
11184            }
11185            mInstaller.clearUserData(packageName, removeUser);
11186            removeKeystoreDataIfNeeded(removeUser, appId);
11187            schedulePackageCleaning(packageName, removeUser, false);
11188            return true;
11189        }
11190
11191        if (dataOnly) {
11192            // Delete application data first
11193            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11194            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11195            return true;
11196        }
11197
11198        boolean ret = false;
11199        if (isSystemApp(ps)) {
11200            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11201            // When an updated system application is deleted we delete the existing resources as well and
11202            // fall back to existing code in system partition
11203            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11204                    flags, outInfo, writeSettings);
11205        } else {
11206            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11207            // Kill application pre-emptively especially for apps on sd.
11208            killApplication(packageName, ps.appId, "uninstall pkg");
11209            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11210                    allUserHandles, perUserInstalled,
11211                    outInfo, writeSettings);
11212        }
11213
11214        return ret;
11215    }
11216
11217    private final class ClearStorageConnection implements ServiceConnection {
11218        IMediaContainerService mContainerService;
11219
11220        @Override
11221        public void onServiceConnected(ComponentName name, IBinder service) {
11222            synchronized (this) {
11223                mContainerService = IMediaContainerService.Stub.asInterface(service);
11224                notifyAll();
11225            }
11226        }
11227
11228        @Override
11229        public void onServiceDisconnected(ComponentName name) {
11230        }
11231    }
11232
11233    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11234        final boolean mounted;
11235        if (Environment.isExternalStorageEmulated()) {
11236            mounted = true;
11237        } else {
11238            final String status = Environment.getExternalStorageState();
11239
11240            mounted = status.equals(Environment.MEDIA_MOUNTED)
11241                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11242        }
11243
11244        if (!mounted) {
11245            return;
11246        }
11247
11248        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11249        int[] users;
11250        if (userId == UserHandle.USER_ALL) {
11251            users = sUserManager.getUserIds();
11252        } else {
11253            users = new int[] { userId };
11254        }
11255        final ClearStorageConnection conn = new ClearStorageConnection();
11256        if (mContext.bindServiceAsUser(
11257                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11258            try {
11259                for (int curUser : users) {
11260                    long timeout = SystemClock.uptimeMillis() + 5000;
11261                    synchronized (conn) {
11262                        long now = SystemClock.uptimeMillis();
11263                        while (conn.mContainerService == null && now < timeout) {
11264                            try {
11265                                conn.wait(timeout - now);
11266                            } catch (InterruptedException e) {
11267                            }
11268                        }
11269                    }
11270                    if (conn.mContainerService == null) {
11271                        return;
11272                    }
11273
11274                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11275                    clearDirectory(conn.mContainerService,
11276                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11277                    if (allData) {
11278                        clearDirectory(conn.mContainerService,
11279                                userEnv.buildExternalStorageAppDataDirs(packageName));
11280                        clearDirectory(conn.mContainerService,
11281                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11282                    }
11283                }
11284            } finally {
11285                mContext.unbindService(conn);
11286            }
11287        }
11288    }
11289
11290    @Override
11291    public void clearApplicationUserData(final String packageName,
11292            final IPackageDataObserver observer, final int userId) {
11293        mContext.enforceCallingOrSelfPermission(
11294                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11295        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11296        // Queue up an async operation since the package deletion may take a little while.
11297        mHandler.post(new Runnable() {
11298            public void run() {
11299                mHandler.removeCallbacks(this);
11300                final boolean succeeded;
11301                synchronized (mInstallLock) {
11302                    succeeded = clearApplicationUserDataLI(packageName, userId);
11303                }
11304                clearExternalStorageDataSync(packageName, userId, true);
11305                if (succeeded) {
11306                    // invoke DeviceStorageMonitor's update method to clear any notifications
11307                    DeviceStorageMonitorInternal
11308                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11309                    if (dsm != null) {
11310                        dsm.checkMemory();
11311                    }
11312                }
11313                if(observer != null) {
11314                    try {
11315                        observer.onRemoveCompleted(packageName, succeeded);
11316                    } catch (RemoteException e) {
11317                        Log.i(TAG, "Observer no longer exists.");
11318                    }
11319                } //end if observer
11320            } //end run
11321        });
11322    }
11323
11324    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11325        if (packageName == null) {
11326            Slog.w(TAG, "Attempt to delete null packageName.");
11327            return false;
11328        }
11329
11330        // Try finding details about the requested package
11331        PackageParser.Package pkg;
11332        synchronized (mPackages) {
11333            pkg = mPackages.get(packageName);
11334            if (pkg == null) {
11335                final PackageSetting ps = mSettings.mPackages.get(packageName);
11336                if (ps != null) {
11337                    pkg = ps.pkg;
11338                }
11339            }
11340        }
11341
11342        if (pkg == null) {
11343            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11344        }
11345
11346        // Always delete data directories for package, even if we found no other
11347        // record of app. This helps users recover from UID mismatches without
11348        // resorting to a full data wipe.
11349        int retCode = mInstaller.clearUserData(packageName, userId);
11350        if (retCode < 0) {
11351            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11352            return false;
11353        }
11354
11355        if (pkg == null) {
11356            return false;
11357        }
11358
11359        if (pkg != null && pkg.applicationInfo != null) {
11360            final int appId = pkg.applicationInfo.uid;
11361            removeKeystoreDataIfNeeded(userId, appId);
11362        }
11363
11364        // Create a native library symlink only if we have native libraries
11365        // and if the native libraries are 32 bit libraries. We do not provide
11366        // this symlink for 64 bit libraries.
11367        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11368                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11369            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11370            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11371                Slog.w(TAG, "Failed linking native library dir");
11372                return false;
11373            }
11374        }
11375
11376        return true;
11377    }
11378
11379    /**
11380     * Remove entries from the keystore daemon. Will only remove it if the
11381     * {@code appId} is valid.
11382     */
11383    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11384        if (appId < 0) {
11385            return;
11386        }
11387
11388        final KeyStore keyStore = KeyStore.getInstance();
11389        if (keyStore != null) {
11390            if (userId == UserHandle.USER_ALL) {
11391                for (final int individual : sUserManager.getUserIds()) {
11392                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11393                }
11394            } else {
11395                keyStore.clearUid(UserHandle.getUid(userId, appId));
11396            }
11397        } else {
11398            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11399        }
11400    }
11401
11402    @Override
11403    public void deleteApplicationCacheFiles(final String packageName,
11404            final IPackageDataObserver observer) {
11405        mContext.enforceCallingOrSelfPermission(
11406                android.Manifest.permission.DELETE_CACHE_FILES, null);
11407        // Queue up an async operation since the package deletion may take a little while.
11408        final int userId = UserHandle.getCallingUserId();
11409        mHandler.post(new Runnable() {
11410            public void run() {
11411                mHandler.removeCallbacks(this);
11412                final boolean succeded;
11413                synchronized (mInstallLock) {
11414                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11415                }
11416                clearExternalStorageDataSync(packageName, userId, false);
11417                if(observer != null) {
11418                    try {
11419                        observer.onRemoveCompleted(packageName, succeded);
11420                    } catch (RemoteException e) {
11421                        Log.i(TAG, "Observer no longer exists.");
11422                    }
11423                } //end if observer
11424            } //end run
11425        });
11426    }
11427
11428    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11429        if (packageName == null) {
11430            Slog.w(TAG, "Attempt to delete null packageName.");
11431            return false;
11432        }
11433        PackageParser.Package p;
11434        synchronized (mPackages) {
11435            p = mPackages.get(packageName);
11436        }
11437        if (p == null) {
11438            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11439            return false;
11440        }
11441        final ApplicationInfo applicationInfo = p.applicationInfo;
11442        if (applicationInfo == null) {
11443            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11444            return false;
11445        }
11446        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11447        if (retCode < 0) {
11448            Slog.w(TAG, "Couldn't remove cache files for package: "
11449                       + packageName + " u" + userId);
11450            return false;
11451        }
11452        return true;
11453    }
11454
11455    @Override
11456    public void getPackageSizeInfo(final String packageName, int userHandle,
11457            final IPackageStatsObserver observer) {
11458        mContext.enforceCallingOrSelfPermission(
11459                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11460        if (packageName == null) {
11461            throw new IllegalArgumentException("Attempt to get size of null packageName");
11462        }
11463
11464        PackageStats stats = new PackageStats(packageName, userHandle);
11465
11466        /*
11467         * Queue up an async operation since the package measurement may take a
11468         * little while.
11469         */
11470        Message msg = mHandler.obtainMessage(INIT_COPY);
11471        msg.obj = new MeasureParams(stats, observer);
11472        mHandler.sendMessage(msg);
11473    }
11474
11475    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11476            PackageStats pStats) {
11477        if (packageName == null) {
11478            Slog.w(TAG, "Attempt to get size of null packageName.");
11479            return false;
11480        }
11481        PackageParser.Package p;
11482        boolean dataOnly = false;
11483        String libDirRoot = null;
11484        String asecPath = null;
11485        PackageSetting ps = null;
11486        synchronized (mPackages) {
11487            p = mPackages.get(packageName);
11488            ps = mSettings.mPackages.get(packageName);
11489            if(p == null) {
11490                dataOnly = true;
11491                if((ps == null) || (ps.pkg == null)) {
11492                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11493                    return false;
11494                }
11495                p = ps.pkg;
11496            }
11497            if (ps != null) {
11498                libDirRoot = ps.legacyNativeLibraryPathString;
11499            }
11500            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11501                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11502                if (secureContainerId != null) {
11503                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11504                }
11505            }
11506        }
11507        String publicSrcDir = null;
11508        if(!dataOnly) {
11509            final ApplicationInfo applicationInfo = p.applicationInfo;
11510            if (applicationInfo == null) {
11511                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11512                return false;
11513            }
11514            if (isForwardLocked(p)) {
11515                publicSrcDir = applicationInfo.getBaseResourcePath();
11516            }
11517        }
11518        // TODO: extend to measure size of split APKs
11519        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11520        // not just the first level.
11521        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11522        // just the primary.
11523        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11524        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11525                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11526        if (res < 0) {
11527            return false;
11528        }
11529
11530        // Fix-up for forward-locked applications in ASEC containers.
11531        if (!isExternal(p)) {
11532            pStats.codeSize += pStats.externalCodeSize;
11533            pStats.externalCodeSize = 0L;
11534        }
11535
11536        return true;
11537    }
11538
11539
11540    @Override
11541    public void addPackageToPreferred(String packageName) {
11542        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11543    }
11544
11545    @Override
11546    public void removePackageFromPreferred(String packageName) {
11547        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11548    }
11549
11550    @Override
11551    public List<PackageInfo> getPreferredPackages(int flags) {
11552        return new ArrayList<PackageInfo>();
11553    }
11554
11555    private int getUidTargetSdkVersionLockedLPr(int uid) {
11556        Object obj = mSettings.getUserIdLPr(uid);
11557        if (obj instanceof SharedUserSetting) {
11558            final SharedUserSetting sus = (SharedUserSetting) obj;
11559            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11560            final Iterator<PackageSetting> it = sus.packages.iterator();
11561            while (it.hasNext()) {
11562                final PackageSetting ps = it.next();
11563                if (ps.pkg != null) {
11564                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11565                    if (v < vers) vers = v;
11566                }
11567            }
11568            return vers;
11569        } else if (obj instanceof PackageSetting) {
11570            final PackageSetting ps = (PackageSetting) obj;
11571            if (ps.pkg != null) {
11572                return ps.pkg.applicationInfo.targetSdkVersion;
11573            }
11574        }
11575        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11576    }
11577
11578    @Override
11579    public void addPreferredActivity(IntentFilter filter, int match,
11580            ComponentName[] set, ComponentName activity, int userId) {
11581        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11582                "Adding preferred");
11583    }
11584
11585    private void addPreferredActivityInternal(IntentFilter filter, int match,
11586            ComponentName[] set, ComponentName activity, boolean always, int userId,
11587            String opname) {
11588        // writer
11589        int callingUid = Binder.getCallingUid();
11590        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11591        if (filter.countActions() == 0) {
11592            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11593            return;
11594        }
11595        synchronized (mPackages) {
11596            if (mContext.checkCallingOrSelfPermission(
11597                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11598                    != PackageManager.PERMISSION_GRANTED) {
11599                if (getUidTargetSdkVersionLockedLPr(callingUid)
11600                        < Build.VERSION_CODES.FROYO) {
11601                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11602                            + callingUid);
11603                    return;
11604                }
11605                mContext.enforceCallingOrSelfPermission(
11606                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11607            }
11608
11609            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11610            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11611                    + userId + ":");
11612            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11613            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11614            scheduleWritePackageRestrictionsLocked(userId);
11615        }
11616    }
11617
11618    @Override
11619    public void replacePreferredActivity(IntentFilter filter, int match,
11620            ComponentName[] set, ComponentName activity, int userId) {
11621        if (filter.countActions() != 1) {
11622            throw new IllegalArgumentException(
11623                    "replacePreferredActivity expects filter to have only 1 action.");
11624        }
11625        if (filter.countDataAuthorities() != 0
11626                || filter.countDataPaths() != 0
11627                || filter.countDataSchemes() > 1
11628                || filter.countDataTypes() != 0) {
11629            throw new IllegalArgumentException(
11630                    "replacePreferredActivity expects filter to have no data authorities, " +
11631                    "paths, or types; and at most one scheme.");
11632        }
11633
11634        final int callingUid = Binder.getCallingUid();
11635        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11636        synchronized (mPackages) {
11637            if (mContext.checkCallingOrSelfPermission(
11638                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11639                    != PackageManager.PERMISSION_GRANTED) {
11640                if (getUidTargetSdkVersionLockedLPr(callingUid)
11641                        < Build.VERSION_CODES.FROYO) {
11642                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11643                            + Binder.getCallingUid());
11644                    return;
11645                }
11646                mContext.enforceCallingOrSelfPermission(
11647                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11648            }
11649
11650            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11651            if (pir != null) {
11652                // Get all of the existing entries that exactly match this filter.
11653                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11654                if (existing != null && existing.size() == 1) {
11655                    PreferredActivity cur = existing.get(0);
11656                    if (DEBUG_PREFERRED) {
11657                        Slog.i(TAG, "Checking replace of preferred:");
11658                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11659                        if (!cur.mPref.mAlways) {
11660                            Slog.i(TAG, "  -- CUR; not mAlways!");
11661                        } else {
11662                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11663                            Slog.i(TAG, "  -- CUR: mSet="
11664                                    + Arrays.toString(cur.mPref.mSetComponents));
11665                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11666                            Slog.i(TAG, "  -- NEW: mMatch="
11667                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11668                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11669                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11670                        }
11671                    }
11672                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11673                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11674                            && cur.mPref.sameSet(set)) {
11675                        // Setting the preferred activity to what it happens to be already
11676                        if (DEBUG_PREFERRED) {
11677                            Slog.i(TAG, "Replacing with same preferred activity "
11678                                    + cur.mPref.mShortComponent + " for user "
11679                                    + userId + ":");
11680                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11681                        }
11682                        return;
11683                    }
11684                }
11685
11686                if (existing != null) {
11687                    if (DEBUG_PREFERRED) {
11688                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11689                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11690                    }
11691                    for (int i = 0; i < existing.size(); i++) {
11692                        PreferredActivity pa = existing.get(i);
11693                        if (DEBUG_PREFERRED) {
11694                            Slog.i(TAG, "Removing existing preferred activity "
11695                                    + pa.mPref.mComponent + ":");
11696                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11697                        }
11698                        pir.removeFilter(pa);
11699                    }
11700                }
11701            }
11702            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11703                    "Replacing preferred");
11704        }
11705    }
11706
11707    @Override
11708    public void clearPackagePreferredActivities(String packageName) {
11709        final int uid = Binder.getCallingUid();
11710        // writer
11711        synchronized (mPackages) {
11712            PackageParser.Package pkg = mPackages.get(packageName);
11713            if (pkg == null || pkg.applicationInfo.uid != uid) {
11714                if (mContext.checkCallingOrSelfPermission(
11715                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11716                        != PackageManager.PERMISSION_GRANTED) {
11717                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11718                            < Build.VERSION_CODES.FROYO) {
11719                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11720                                + Binder.getCallingUid());
11721                        return;
11722                    }
11723                    mContext.enforceCallingOrSelfPermission(
11724                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11725                }
11726            }
11727
11728            int user = UserHandle.getCallingUserId();
11729            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11730                scheduleWritePackageRestrictionsLocked(user);
11731            }
11732        }
11733    }
11734
11735    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11736    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11737        ArrayList<PreferredActivity> removed = null;
11738        boolean changed = false;
11739        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11740            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11741            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11742            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11743                continue;
11744            }
11745            Iterator<PreferredActivity> it = pir.filterIterator();
11746            while (it.hasNext()) {
11747                PreferredActivity pa = it.next();
11748                // Mark entry for removal only if it matches the package name
11749                // and the entry is of type "always".
11750                if (packageName == null ||
11751                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11752                                && pa.mPref.mAlways)) {
11753                    if (removed == null) {
11754                        removed = new ArrayList<PreferredActivity>();
11755                    }
11756                    removed.add(pa);
11757                }
11758            }
11759            if (removed != null) {
11760                for (int j=0; j<removed.size(); j++) {
11761                    PreferredActivity pa = removed.get(j);
11762                    pir.removeFilter(pa);
11763                }
11764                changed = true;
11765            }
11766        }
11767        return changed;
11768    }
11769
11770    @Override
11771    public void resetPreferredActivities(int userId) {
11772        /* TODO: Actually use userId. Why is it being passed in? */
11773        mContext.enforceCallingOrSelfPermission(
11774                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11775        // writer
11776        synchronized (mPackages) {
11777            int user = UserHandle.getCallingUserId();
11778            clearPackagePreferredActivitiesLPw(null, user);
11779            mSettings.readDefaultPreferredAppsLPw(this, user);
11780            scheduleWritePackageRestrictionsLocked(user);
11781        }
11782    }
11783
11784    @Override
11785    public int getPreferredActivities(List<IntentFilter> outFilters,
11786            List<ComponentName> outActivities, String packageName) {
11787
11788        int num = 0;
11789        final int userId = UserHandle.getCallingUserId();
11790        // reader
11791        synchronized (mPackages) {
11792            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11793            if (pir != null) {
11794                final Iterator<PreferredActivity> it = pir.filterIterator();
11795                while (it.hasNext()) {
11796                    final PreferredActivity pa = it.next();
11797                    if (packageName == null
11798                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11799                                    && pa.mPref.mAlways)) {
11800                        if (outFilters != null) {
11801                            outFilters.add(new IntentFilter(pa));
11802                        }
11803                        if (outActivities != null) {
11804                            outActivities.add(pa.mPref.mComponent);
11805                        }
11806                    }
11807                }
11808            }
11809        }
11810
11811        return num;
11812    }
11813
11814    @Override
11815    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11816            int userId) {
11817        int callingUid = Binder.getCallingUid();
11818        if (callingUid != Process.SYSTEM_UID) {
11819            throw new SecurityException(
11820                    "addPersistentPreferredActivity can only be run by the system");
11821        }
11822        if (filter.countActions() == 0) {
11823            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11824            return;
11825        }
11826        synchronized (mPackages) {
11827            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11828                    " :");
11829            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11830            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11831                    new PersistentPreferredActivity(filter, activity));
11832            scheduleWritePackageRestrictionsLocked(userId);
11833        }
11834    }
11835
11836    @Override
11837    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11838        int callingUid = Binder.getCallingUid();
11839        if (callingUid != Process.SYSTEM_UID) {
11840            throw new SecurityException(
11841                    "clearPackagePersistentPreferredActivities can only be run by the system");
11842        }
11843        ArrayList<PersistentPreferredActivity> removed = null;
11844        boolean changed = false;
11845        synchronized (mPackages) {
11846            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11847                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11848                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11849                        .valueAt(i);
11850                if (userId != thisUserId) {
11851                    continue;
11852                }
11853                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11854                while (it.hasNext()) {
11855                    PersistentPreferredActivity ppa = it.next();
11856                    // Mark entry for removal only if it matches the package name.
11857                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11858                        if (removed == null) {
11859                            removed = new ArrayList<PersistentPreferredActivity>();
11860                        }
11861                        removed.add(ppa);
11862                    }
11863                }
11864                if (removed != null) {
11865                    for (int j=0; j<removed.size(); j++) {
11866                        PersistentPreferredActivity ppa = removed.get(j);
11867                        ppir.removeFilter(ppa);
11868                    }
11869                    changed = true;
11870                }
11871            }
11872
11873            if (changed) {
11874                scheduleWritePackageRestrictionsLocked(userId);
11875            }
11876        }
11877    }
11878
11879    @Override
11880    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11881            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11882        mContext.enforceCallingOrSelfPermission(
11883                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11884        int callingUid = Binder.getCallingUid();
11885        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11886        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11887        if (intentFilter.countActions() == 0) {
11888            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11889            return;
11890        }
11891        synchronized (mPackages) {
11892            CrossProfileIntentFilter newFilter = new CrossProfileIntentFilter(intentFilter,
11893                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11894            CrossProfileIntentResolver resolver =
11895                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11896            ArrayList<CrossProfileIntentFilter> existing = resolver.findFilters(intentFilter);
11897            // We have all those whose filter is equal. Now checking if the rest is equal as well.
11898            if (existing != null) {
11899                int size = existing.size();
11900                for (int i = 0; i < size; i++) {
11901                    if (newFilter.equalsIgnoreFilter(existing.get(i))) {
11902                        return;
11903                    }
11904                }
11905            }
11906            resolver.addFilter(newFilter);
11907            scheduleWritePackageRestrictionsLocked(sourceUserId);
11908        }
11909    }
11910
11911    @Override
11912    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11913            int ownerUserId) {
11914        mContext.enforceCallingOrSelfPermission(
11915                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11916        int callingUid = Binder.getCallingUid();
11917        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11918        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11919        int callingUserId = UserHandle.getUserId(callingUid);
11920        synchronized (mPackages) {
11921            CrossProfileIntentResolver resolver =
11922                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11923            ArraySet<CrossProfileIntentFilter> set =
11924                    new ArraySet<CrossProfileIntentFilter>(resolver.filterSet());
11925            for (CrossProfileIntentFilter filter : set) {
11926                if (filter.getOwnerPackage().equals(ownerPackage)
11927                        && filter.getOwnerUserId() == callingUserId) {
11928                    resolver.removeFilter(filter);
11929                }
11930            }
11931            scheduleWritePackageRestrictionsLocked(sourceUserId);
11932        }
11933    }
11934
11935    // Enforcing that callingUid is owning pkg on userId
11936    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11937        // The system owns everything.
11938        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11939            return;
11940        }
11941        int callingUserId = UserHandle.getUserId(callingUid);
11942        if (callingUserId != userId) {
11943            throw new SecurityException("calling uid " + callingUid
11944                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11945                    + callingUserId);
11946        }
11947        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11948        if (pi == null) {
11949            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11950                    + callingUserId);
11951        }
11952        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11953            throw new SecurityException("Calling uid " + callingUid
11954                    + " does not own package " + pkg);
11955        }
11956    }
11957
11958    @Override
11959    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11960        Intent intent = new Intent(Intent.ACTION_MAIN);
11961        intent.addCategory(Intent.CATEGORY_HOME);
11962
11963        final int callingUserId = UserHandle.getCallingUserId();
11964        List<ResolveInfo> list = queryIntentActivities(intent, null,
11965                PackageManager.GET_META_DATA, callingUserId);
11966        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11967                true, false, false, callingUserId);
11968
11969        allHomeCandidates.clear();
11970        if (list != null) {
11971            for (ResolveInfo ri : list) {
11972                allHomeCandidates.add(ri);
11973            }
11974        }
11975        return (preferred == null || preferred.activityInfo == null)
11976                ? null
11977                : new ComponentName(preferred.activityInfo.packageName,
11978                        preferred.activityInfo.name);
11979    }
11980
11981    @Override
11982    public void setApplicationEnabledSetting(String appPackageName,
11983            int newState, int flags, int userId, String callingPackage) {
11984        if (!sUserManager.exists(userId)) return;
11985        if (callingPackage == null) {
11986            callingPackage = Integer.toString(Binder.getCallingUid());
11987        }
11988        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11989    }
11990
11991    @Override
11992    public void setComponentEnabledSetting(ComponentName componentName,
11993            int newState, int flags, int userId) {
11994        if (!sUserManager.exists(userId)) return;
11995        setEnabledSetting(componentName.getPackageName(),
11996                componentName.getClassName(), newState, flags, userId, null);
11997    }
11998
11999    private void setEnabledSetting(final String packageName, String className, int newState,
12000            final int flags, int userId, String callingPackage) {
12001        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
12002              || newState == COMPONENT_ENABLED_STATE_ENABLED
12003              || newState == COMPONENT_ENABLED_STATE_DISABLED
12004              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
12005              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
12006            throw new IllegalArgumentException("Invalid new component state: "
12007                    + newState);
12008        }
12009        PackageSetting pkgSetting;
12010        final int uid = Binder.getCallingUid();
12011        final int permission = mContext.checkCallingOrSelfPermission(
12012                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12013        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
12014        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12015        boolean sendNow = false;
12016        boolean isApp = (className == null);
12017        String componentName = isApp ? packageName : className;
12018        int packageUid = -1;
12019        ArrayList<String> components;
12020
12021        // writer
12022        synchronized (mPackages) {
12023            pkgSetting = mSettings.mPackages.get(packageName);
12024            if (pkgSetting == null) {
12025                if (className == null) {
12026                    throw new IllegalArgumentException(
12027                            "Unknown package: " + packageName);
12028                }
12029                throw new IllegalArgumentException(
12030                        "Unknown component: " + packageName
12031                        + "/" + className);
12032            }
12033            // Allow root and verify that userId is not being specified by a different user
12034            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
12035                throw new SecurityException(
12036                        "Permission Denial: attempt to change component state from pid="
12037                        + Binder.getCallingPid()
12038                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
12039            }
12040            if (className == null) {
12041                // We're dealing with an application/package level state change
12042                if (pkgSetting.getEnabled(userId) == newState) {
12043                    // Nothing to do
12044                    return;
12045                }
12046                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
12047                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
12048                    // Don't care about who enables an app.
12049                    callingPackage = null;
12050                }
12051                pkgSetting.setEnabled(newState, userId, callingPackage);
12052                // pkgSetting.pkg.mSetEnabled = newState;
12053            } else {
12054                // We're dealing with a component level state change
12055                // First, verify that this is a valid class name.
12056                PackageParser.Package pkg = pkgSetting.pkg;
12057                if (pkg == null || !pkg.hasComponentClassName(className)) {
12058                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
12059                        throw new IllegalArgumentException("Component class " + className
12060                                + " does not exist in " + packageName);
12061                    } else {
12062                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
12063                                + className + " does not exist in " + packageName);
12064                    }
12065                }
12066                switch (newState) {
12067                case COMPONENT_ENABLED_STATE_ENABLED:
12068                    if (!pkgSetting.enableComponentLPw(className, userId)) {
12069                        return;
12070                    }
12071                    break;
12072                case COMPONENT_ENABLED_STATE_DISABLED:
12073                    if (!pkgSetting.disableComponentLPw(className, userId)) {
12074                        return;
12075                    }
12076                    break;
12077                case COMPONENT_ENABLED_STATE_DEFAULT:
12078                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
12079                        return;
12080                    }
12081                    break;
12082                default:
12083                    Slog.e(TAG, "Invalid new component state: " + newState);
12084                    return;
12085                }
12086            }
12087            mSettings.writePackageRestrictionsLPr(userId);
12088            components = mPendingBroadcasts.get(userId, packageName);
12089            final boolean newPackage = components == null;
12090            if (newPackage) {
12091                components = new ArrayList<String>();
12092            }
12093            if (!components.contains(componentName)) {
12094                components.add(componentName);
12095            }
12096            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12097                sendNow = true;
12098                // Purge entry from pending broadcast list if another one exists already
12099                // since we are sending one right away.
12100                mPendingBroadcasts.remove(userId, packageName);
12101            } else {
12102                if (newPackage) {
12103                    mPendingBroadcasts.put(userId, packageName, components);
12104                }
12105                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12106                    // Schedule a message
12107                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12108                }
12109            }
12110        }
12111
12112        long callingId = Binder.clearCallingIdentity();
12113        try {
12114            if (sendNow) {
12115                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12116                sendPackageChangedBroadcast(packageName,
12117                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12118            }
12119        } finally {
12120            Binder.restoreCallingIdentity(callingId);
12121        }
12122    }
12123
12124    private void sendPackageChangedBroadcast(String packageName,
12125            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12126        if (DEBUG_INSTALL)
12127            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12128                    + componentNames);
12129        Bundle extras = new Bundle(4);
12130        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12131        String nameList[] = new String[componentNames.size()];
12132        componentNames.toArray(nameList);
12133        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12134        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12135        extras.putInt(Intent.EXTRA_UID, packageUid);
12136        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12137                new int[] {UserHandle.getUserId(packageUid)});
12138    }
12139
12140    @Override
12141    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12142        if (!sUserManager.exists(userId)) return;
12143        final int uid = Binder.getCallingUid();
12144        final int permission = mContext.checkCallingOrSelfPermission(
12145                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12146        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12147        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12148        // writer
12149        synchronized (mPackages) {
12150            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12151                    uid, userId)) {
12152                scheduleWritePackageRestrictionsLocked(userId);
12153            }
12154        }
12155    }
12156
12157    @Override
12158    public String getInstallerPackageName(String packageName) {
12159        // reader
12160        synchronized (mPackages) {
12161            return mSettings.getInstallerPackageNameLPr(packageName);
12162        }
12163    }
12164
12165    @Override
12166    public int getApplicationEnabledSetting(String packageName, int userId) {
12167        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12168        int uid = Binder.getCallingUid();
12169        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12170        // reader
12171        synchronized (mPackages) {
12172            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12173        }
12174    }
12175
12176    @Override
12177    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12178        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12179        int uid = Binder.getCallingUid();
12180        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12181        // reader
12182        synchronized (mPackages) {
12183            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12184        }
12185    }
12186
12187    @Override
12188    public void enterSafeMode() {
12189        enforceSystemOrRoot("Only the system can request entering safe mode");
12190
12191        if (!mSystemReady) {
12192            mSafeMode = true;
12193        }
12194    }
12195
12196    @Override
12197    public void systemReady() {
12198        mSystemReady = true;
12199
12200        // Read the compatibilty setting when the system is ready.
12201        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12202                mContext.getContentResolver(),
12203                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12204        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12205        if (DEBUG_SETTINGS) {
12206            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12207        }
12208
12209        synchronized (mPackages) {
12210            // Verify that all of the preferred activity components actually
12211            // exist.  It is possible for applications to be updated and at
12212            // that point remove a previously declared activity component that
12213            // had been set as a preferred activity.  We try to clean this up
12214            // the next time we encounter that preferred activity, but it is
12215            // possible for the user flow to never be able to return to that
12216            // situation so here we do a sanity check to make sure we haven't
12217            // left any junk around.
12218            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12219            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12220                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12221                removed.clear();
12222                for (PreferredActivity pa : pir.filterSet()) {
12223                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12224                        removed.add(pa);
12225                    }
12226                }
12227                if (removed.size() > 0) {
12228                    for (int r=0; r<removed.size(); r++) {
12229                        PreferredActivity pa = removed.get(r);
12230                        Slog.w(TAG, "Removing dangling preferred activity: "
12231                                + pa.mPref.mComponent);
12232                        pir.removeFilter(pa);
12233                    }
12234                    mSettings.writePackageRestrictionsLPr(
12235                            mSettings.mPreferredActivities.keyAt(i));
12236                }
12237            }
12238        }
12239        sUserManager.systemReady();
12240
12241        // Kick off any messages waiting for system ready
12242        if (mPostSystemReadyMessages != null) {
12243            for (Message msg : mPostSystemReadyMessages) {
12244                msg.sendToTarget();
12245            }
12246            mPostSystemReadyMessages = null;
12247        }
12248    }
12249
12250    @Override
12251    public boolean isSafeMode() {
12252        return mSafeMode;
12253    }
12254
12255    @Override
12256    public boolean hasSystemUidErrors() {
12257        return mHasSystemUidErrors;
12258    }
12259
12260    static String arrayToString(int[] array) {
12261        StringBuffer buf = new StringBuffer(128);
12262        buf.append('[');
12263        if (array != null) {
12264            for (int i=0; i<array.length; i++) {
12265                if (i > 0) buf.append(", ");
12266                buf.append(array[i]);
12267            }
12268        }
12269        buf.append(']');
12270        return buf.toString();
12271    }
12272
12273    static class DumpState {
12274        public static final int DUMP_LIBS = 1 << 0;
12275        public static final int DUMP_FEATURES = 1 << 1;
12276        public static final int DUMP_RESOLVERS = 1 << 2;
12277        public static final int DUMP_PERMISSIONS = 1 << 3;
12278        public static final int DUMP_PACKAGES = 1 << 4;
12279        public static final int DUMP_SHARED_USERS = 1 << 5;
12280        public static final int DUMP_MESSAGES = 1 << 6;
12281        public static final int DUMP_PROVIDERS = 1 << 7;
12282        public static final int DUMP_VERIFIERS = 1 << 8;
12283        public static final int DUMP_PREFERRED = 1 << 9;
12284        public static final int DUMP_PREFERRED_XML = 1 << 10;
12285        public static final int DUMP_KEYSETS = 1 << 11;
12286        public static final int DUMP_VERSION = 1 << 12;
12287        public static final int DUMP_INSTALLS = 1 << 13;
12288
12289        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12290
12291        private int mTypes;
12292
12293        private int mOptions;
12294
12295        private boolean mTitlePrinted;
12296
12297        private SharedUserSetting mSharedUser;
12298
12299        public boolean isDumping(int type) {
12300            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12301                return true;
12302            }
12303
12304            return (mTypes & type) != 0;
12305        }
12306
12307        public void setDump(int type) {
12308            mTypes |= type;
12309        }
12310
12311        public boolean isOptionEnabled(int option) {
12312            return (mOptions & option) != 0;
12313        }
12314
12315        public void setOptionEnabled(int option) {
12316            mOptions |= option;
12317        }
12318
12319        public boolean onTitlePrinted() {
12320            final boolean printed = mTitlePrinted;
12321            mTitlePrinted = true;
12322            return printed;
12323        }
12324
12325        public boolean getTitlePrinted() {
12326            return mTitlePrinted;
12327        }
12328
12329        public void setTitlePrinted(boolean enabled) {
12330            mTitlePrinted = enabled;
12331        }
12332
12333        public SharedUserSetting getSharedUser() {
12334            return mSharedUser;
12335        }
12336
12337        public void setSharedUser(SharedUserSetting user) {
12338            mSharedUser = user;
12339        }
12340    }
12341
12342    @Override
12343    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12344        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12345                != PackageManager.PERMISSION_GRANTED) {
12346            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12347                    + Binder.getCallingPid()
12348                    + ", uid=" + Binder.getCallingUid()
12349                    + " without permission "
12350                    + android.Manifest.permission.DUMP);
12351            return;
12352        }
12353
12354        DumpState dumpState = new DumpState();
12355        boolean fullPreferred = false;
12356        boolean checkin = false;
12357
12358        String packageName = null;
12359
12360        int opti = 0;
12361        while (opti < args.length) {
12362            String opt = args[opti];
12363            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12364                break;
12365            }
12366            opti++;
12367
12368            if ("-a".equals(opt)) {
12369                // Right now we only know how to print all.
12370            } else if ("-h".equals(opt)) {
12371                pw.println("Package manager dump options:");
12372                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12373                pw.println("    --checkin: dump for a checkin");
12374                pw.println("    -f: print details of intent filters");
12375                pw.println("    -h: print this help");
12376                pw.println("  cmd may be one of:");
12377                pw.println("    l[ibraries]: list known shared libraries");
12378                pw.println("    f[ibraries]: list device features");
12379                pw.println("    k[eysets]: print known keysets");
12380                pw.println("    r[esolvers]: dump intent resolvers");
12381                pw.println("    perm[issions]: dump permissions");
12382                pw.println("    pref[erred]: print preferred package settings");
12383                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12384                pw.println("    prov[iders]: dump content providers");
12385                pw.println("    p[ackages]: dump installed packages");
12386                pw.println("    s[hared-users]: dump shared user IDs");
12387                pw.println("    m[essages]: print collected runtime messages");
12388                pw.println("    v[erifiers]: print package verifier info");
12389                pw.println("    version: print database version info");
12390                pw.println("    write: write current settings now");
12391                pw.println("    <package.name>: info about given package");
12392                pw.println("    installs: details about install sessions");
12393                return;
12394            } else if ("--checkin".equals(opt)) {
12395                checkin = true;
12396            } else if ("-f".equals(opt)) {
12397                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12398            } else {
12399                pw.println("Unknown argument: " + opt + "; use -h for help");
12400            }
12401        }
12402
12403        // Is the caller requesting to dump a particular piece of data?
12404        if (opti < args.length) {
12405            String cmd = args[opti];
12406            opti++;
12407            // Is this a package name?
12408            if ("android".equals(cmd) || cmd.contains(".")) {
12409                packageName = cmd;
12410                // When dumping a single package, we always dump all of its
12411                // filter information since the amount of data will be reasonable.
12412                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12413            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12414                dumpState.setDump(DumpState.DUMP_LIBS);
12415            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12416                dumpState.setDump(DumpState.DUMP_FEATURES);
12417            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12418                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12419            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12420                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12421            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12422                dumpState.setDump(DumpState.DUMP_PREFERRED);
12423            } else if ("preferred-xml".equals(cmd)) {
12424                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12425                if (opti < args.length && "--full".equals(args[opti])) {
12426                    fullPreferred = true;
12427                    opti++;
12428                }
12429            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12430                dumpState.setDump(DumpState.DUMP_PACKAGES);
12431            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12432                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12433            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12434                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12435            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12436                dumpState.setDump(DumpState.DUMP_MESSAGES);
12437            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12438                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12439            } else if ("version".equals(cmd)) {
12440                dumpState.setDump(DumpState.DUMP_VERSION);
12441            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12442                dumpState.setDump(DumpState.DUMP_KEYSETS);
12443            } else if ("installs".equals(cmd)) {
12444                dumpState.setDump(DumpState.DUMP_INSTALLS);
12445            } else if ("write".equals(cmd)) {
12446                synchronized (mPackages) {
12447                    mSettings.writeLPr();
12448                    pw.println("Settings written.");
12449                    return;
12450                }
12451            }
12452        }
12453
12454        if (checkin) {
12455            pw.println("vers,1");
12456        }
12457
12458        // reader
12459        synchronized (mPackages) {
12460            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12461                if (!checkin) {
12462                    if (dumpState.onTitlePrinted())
12463                        pw.println();
12464                    pw.println("Database versions:");
12465                    pw.print("  SDK Version:");
12466                    pw.print(" internal=");
12467                    pw.print(mSettings.mInternalSdkPlatform);
12468                    pw.print(" external=");
12469                    pw.println(mSettings.mExternalSdkPlatform);
12470                    pw.print("  DB Version:");
12471                    pw.print(" internal=");
12472                    pw.print(mSettings.mInternalDatabaseVersion);
12473                    pw.print(" external=");
12474                    pw.println(mSettings.mExternalDatabaseVersion);
12475                }
12476            }
12477
12478            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12479                if (!checkin) {
12480                    if (dumpState.onTitlePrinted())
12481                        pw.println();
12482                    pw.println("Verifiers:");
12483                    pw.print("  Required: ");
12484                    pw.print(mRequiredVerifierPackage);
12485                    pw.print(" (uid=");
12486                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12487                    pw.println(")");
12488                } else if (mRequiredVerifierPackage != null) {
12489                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12490                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12491                }
12492            }
12493
12494            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12495                boolean printedHeader = false;
12496                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12497                while (it.hasNext()) {
12498                    String name = it.next();
12499                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12500                    if (!checkin) {
12501                        if (!printedHeader) {
12502                            if (dumpState.onTitlePrinted())
12503                                pw.println();
12504                            pw.println("Libraries:");
12505                            printedHeader = true;
12506                        }
12507                        pw.print("  ");
12508                    } else {
12509                        pw.print("lib,");
12510                    }
12511                    pw.print(name);
12512                    if (!checkin) {
12513                        pw.print(" -> ");
12514                    }
12515                    if (ent.path != null) {
12516                        if (!checkin) {
12517                            pw.print("(jar) ");
12518                            pw.print(ent.path);
12519                        } else {
12520                            pw.print(",jar,");
12521                            pw.print(ent.path);
12522                        }
12523                    } else {
12524                        if (!checkin) {
12525                            pw.print("(apk) ");
12526                            pw.print(ent.apk);
12527                        } else {
12528                            pw.print(",apk,");
12529                            pw.print(ent.apk);
12530                        }
12531                    }
12532                    pw.println();
12533                }
12534            }
12535
12536            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12537                if (dumpState.onTitlePrinted())
12538                    pw.println();
12539                if (!checkin) {
12540                    pw.println("Features:");
12541                }
12542                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12543                while (it.hasNext()) {
12544                    String name = it.next();
12545                    if (!checkin) {
12546                        pw.print("  ");
12547                    } else {
12548                        pw.print("feat,");
12549                    }
12550                    pw.println(name);
12551                }
12552            }
12553
12554            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12555                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12556                        : "Activity Resolver Table:", "  ", packageName,
12557                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12558                    dumpState.setTitlePrinted(true);
12559                }
12560                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12561                        : "Receiver Resolver Table:", "  ", packageName,
12562                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12563                    dumpState.setTitlePrinted(true);
12564                }
12565                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12566                        : "Service Resolver Table:", "  ", packageName,
12567                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12568                    dumpState.setTitlePrinted(true);
12569                }
12570                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12571                        : "Provider Resolver Table:", "  ", packageName,
12572                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12573                    dumpState.setTitlePrinted(true);
12574                }
12575            }
12576
12577            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12578                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12579                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12580                    int user = mSettings.mPreferredActivities.keyAt(i);
12581                    if (pir.dump(pw,
12582                            dumpState.getTitlePrinted()
12583                                ? "\nPreferred Activities User " + user + ":"
12584                                : "Preferred Activities User " + user + ":", "  ",
12585                            packageName, true)) {
12586                        dumpState.setTitlePrinted(true);
12587                    }
12588                }
12589            }
12590
12591            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12592                pw.flush();
12593                FileOutputStream fout = new FileOutputStream(fd);
12594                BufferedOutputStream str = new BufferedOutputStream(fout);
12595                XmlSerializer serializer = new FastXmlSerializer();
12596                try {
12597                    serializer.setOutput(str, "utf-8");
12598                    serializer.startDocument(null, true);
12599                    serializer.setFeature(
12600                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12601                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12602                    serializer.endDocument();
12603                    serializer.flush();
12604                } catch (IllegalArgumentException e) {
12605                    pw.println("Failed writing: " + e);
12606                } catch (IllegalStateException e) {
12607                    pw.println("Failed writing: " + e);
12608                } catch (IOException e) {
12609                    pw.println("Failed writing: " + e);
12610                }
12611            }
12612
12613            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12614                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12615                if (packageName == null) {
12616                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12617                        if (iperm == 0) {
12618                            if (dumpState.onTitlePrinted())
12619                                pw.println();
12620                            pw.println("AppOp Permissions:");
12621                        }
12622                        pw.print("  AppOp Permission ");
12623                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12624                        pw.println(":");
12625                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12626                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12627                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12628                        }
12629                    }
12630                }
12631            }
12632
12633            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12634                boolean printedSomething = false;
12635                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12636                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12637                        continue;
12638                    }
12639                    if (!printedSomething) {
12640                        if (dumpState.onTitlePrinted())
12641                            pw.println();
12642                        pw.println("Registered ContentProviders:");
12643                        printedSomething = true;
12644                    }
12645                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12646                    pw.print("    "); pw.println(p.toString());
12647                }
12648                printedSomething = false;
12649                for (Map.Entry<String, PackageParser.Provider> entry :
12650                        mProvidersByAuthority.entrySet()) {
12651                    PackageParser.Provider p = entry.getValue();
12652                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12653                        continue;
12654                    }
12655                    if (!printedSomething) {
12656                        if (dumpState.onTitlePrinted())
12657                            pw.println();
12658                        pw.println("ContentProvider Authorities:");
12659                        printedSomething = true;
12660                    }
12661                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12662                    pw.print("    "); pw.println(p.toString());
12663                    if (p.info != null && p.info.applicationInfo != null) {
12664                        final String appInfo = p.info.applicationInfo.toString();
12665                        pw.print("      applicationInfo="); pw.println(appInfo);
12666                    }
12667                }
12668            }
12669
12670            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12671                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12672            }
12673
12674            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12675                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12676            }
12677
12678            if (!checkin && dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12679                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState);
12680            }
12681
12682            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12683                // XXX should handle packageName != null by dumping only install data that
12684                // the given package is involved with.
12685                if (dumpState.onTitlePrinted()) pw.println();
12686                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12687            }
12688
12689            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12690                if (dumpState.onTitlePrinted()) pw.println();
12691                mSettings.dumpReadMessagesLPr(pw, dumpState);
12692
12693                pw.println();
12694                pw.println("Package warning messages:");
12695                final File fname = getSettingsProblemFile();
12696                FileInputStream in = null;
12697                try {
12698                    in = new FileInputStream(fname);
12699                    final int avail = in.available();
12700                    final byte[] data = new byte[avail];
12701                    in.read(data);
12702                    pw.print(new String(data));
12703                } catch (FileNotFoundException e) {
12704                } catch (IOException e) {
12705                } finally {
12706                    if (in != null) {
12707                        try {
12708                            in.close();
12709                        } catch (IOException e) {
12710                        }
12711                    }
12712                }
12713            }
12714
12715            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12716                BufferedReader in = null;
12717                String line = null;
12718                try {
12719                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12720                    while ((line = in.readLine()) != null) {
12721                        pw.print("msg,");
12722                        pw.println(line);
12723                    }
12724                } catch (IOException ignored) {
12725                } finally {
12726                    IoUtils.closeQuietly(in);
12727                }
12728            }
12729        }
12730    }
12731
12732    // ------- apps on sdcard specific code -------
12733    static final boolean DEBUG_SD_INSTALL = false;
12734
12735    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12736
12737    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12738
12739    private boolean mMediaMounted = false;
12740
12741    static String getEncryptKey() {
12742        try {
12743            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12744                    SD_ENCRYPTION_KEYSTORE_NAME);
12745            if (sdEncKey == null) {
12746                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12747                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12748                if (sdEncKey == null) {
12749                    Slog.e(TAG, "Failed to create encryption keys");
12750                    return null;
12751                }
12752            }
12753            return sdEncKey;
12754        } catch (NoSuchAlgorithmException nsae) {
12755            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12756            return null;
12757        } catch (IOException ioe) {
12758            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12759            return null;
12760        }
12761    }
12762
12763    /*
12764     * Update media status on PackageManager.
12765     */
12766    @Override
12767    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12768        int callingUid = Binder.getCallingUid();
12769        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12770            throw new SecurityException("Media status can only be updated by the system");
12771        }
12772        // reader; this apparently protects mMediaMounted, but should probably
12773        // be a different lock in that case.
12774        synchronized (mPackages) {
12775            Log.i(TAG, "Updating external media status from "
12776                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12777                    + (mediaStatus ? "mounted" : "unmounted"));
12778            if (DEBUG_SD_INSTALL)
12779                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12780                        + ", mMediaMounted=" + mMediaMounted);
12781            if (mediaStatus == mMediaMounted) {
12782                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12783                        : 0, -1);
12784                mHandler.sendMessage(msg);
12785                return;
12786            }
12787            mMediaMounted = mediaStatus;
12788        }
12789        // Queue up an async operation since the package installation may take a
12790        // little while.
12791        mHandler.post(new Runnable() {
12792            public void run() {
12793                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12794            }
12795        });
12796    }
12797
12798    /**
12799     * Called by MountService when the initial ASECs to scan are available.
12800     * Should block until all the ASEC containers are finished being scanned.
12801     */
12802    public void scanAvailableAsecs() {
12803        updateExternalMediaStatusInner(true, false, false);
12804        if (mShouldRestoreconData) {
12805            SELinuxMMAC.setRestoreconDone();
12806            mShouldRestoreconData = false;
12807        }
12808    }
12809
12810    /*
12811     * Collect information of applications on external media, map them against
12812     * existing containers and update information based on current mount status.
12813     * Please note that we always have to report status if reportStatus has been
12814     * set to true especially when unloading packages.
12815     */
12816    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12817            boolean externalStorage) {
12818        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12819        int[] uidArr = EmptyArray.INT;
12820
12821        final String[] list = PackageHelper.getSecureContainerList();
12822        if (ArrayUtils.isEmpty(list)) {
12823            Log.i(TAG, "No secure containers found");
12824        } else {
12825            // Process list of secure containers and categorize them
12826            // as active or stale based on their package internal state.
12827
12828            // reader
12829            synchronized (mPackages) {
12830                for (String cid : list) {
12831                    // Leave stages untouched for now; installer service owns them
12832                    if (PackageInstallerService.isStageName(cid)) continue;
12833
12834                    if (DEBUG_SD_INSTALL)
12835                        Log.i(TAG, "Processing container " + cid);
12836                    String pkgName = getAsecPackageName(cid);
12837                    if (pkgName == null) {
12838                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12839                        continue;
12840                    }
12841                    if (DEBUG_SD_INSTALL)
12842                        Log.i(TAG, "Looking for pkg : " + pkgName);
12843
12844                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12845                    if (ps == null) {
12846                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12847                        continue;
12848                    }
12849
12850                    /*
12851                     * Skip packages that are not external if we're unmounting
12852                     * external storage.
12853                     */
12854                    if (externalStorage && !isMounted && !isExternal(ps)) {
12855                        continue;
12856                    }
12857
12858                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12859                            getAppDexInstructionSets(ps), isForwardLocked(ps));
12860                    // The package status is changed only if the code path
12861                    // matches between settings and the container id.
12862                    if (ps.codePathString != null
12863                            && ps.codePathString.startsWith(args.getCodePath())) {
12864                        if (DEBUG_SD_INSTALL) {
12865                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12866                                    + " at code path: " + ps.codePathString);
12867                        }
12868
12869                        // We do have a valid package installed on sdcard
12870                        processCids.put(args, ps.codePathString);
12871                        final int uid = ps.appId;
12872                        if (uid != -1) {
12873                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12874                        }
12875                    } else {
12876                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12877                                + ps.codePathString);
12878                    }
12879                }
12880            }
12881
12882            Arrays.sort(uidArr);
12883        }
12884
12885        // Process packages with valid entries.
12886        if (isMounted) {
12887            if (DEBUG_SD_INSTALL)
12888                Log.i(TAG, "Loading packages");
12889            loadMediaPackages(processCids, uidArr);
12890            startCleaningPackages();
12891            mInstallerService.onSecureContainersAvailable();
12892        } else {
12893            if (DEBUG_SD_INSTALL)
12894                Log.i(TAG, "Unloading packages");
12895            unloadMediaPackages(processCids, uidArr, reportStatus);
12896        }
12897    }
12898
12899    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12900            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12901        int size = pkgList.size();
12902        if (size > 0) {
12903            // Send broadcasts here
12904            Bundle extras = new Bundle();
12905            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12906                    .toArray(new String[size]));
12907            if (uidArr != null) {
12908                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12909            }
12910            if (replacing) {
12911                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12912            }
12913            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12914                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12915            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12916        }
12917    }
12918
12919   /*
12920     * Look at potentially valid container ids from processCids If package
12921     * information doesn't match the one on record or package scanning fails,
12922     * the cid is added to list of removeCids. We currently don't delete stale
12923     * containers.
12924     */
12925    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12926        ArrayList<String> pkgList = new ArrayList<String>();
12927        Set<AsecInstallArgs> keys = processCids.keySet();
12928
12929        for (AsecInstallArgs args : keys) {
12930            String codePath = processCids.get(args);
12931            if (DEBUG_SD_INSTALL)
12932                Log.i(TAG, "Loading container : " + args.cid);
12933            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12934            try {
12935                // Make sure there are no container errors first.
12936                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12937                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12938                            + " when installing from sdcard");
12939                    continue;
12940                }
12941                // Check code path here.
12942                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12943                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12944                            + " does not match one in settings " + codePath);
12945                    continue;
12946                }
12947                // Parse package
12948                int parseFlags = mDefParseFlags;
12949                if (args.isExternal()) {
12950                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12951                }
12952                if (args.isFwdLocked()) {
12953                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12954                }
12955
12956                synchronized (mInstallLock) {
12957                    PackageParser.Package pkg = null;
12958                    try {
12959                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12960                    } catch (PackageManagerException e) {
12961                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12962                    }
12963                    // Scan the package
12964                    if (pkg != null) {
12965                        /*
12966                         * TODO why is the lock being held? doPostInstall is
12967                         * called in other places without the lock. This needs
12968                         * to be straightened out.
12969                         */
12970                        // writer
12971                        synchronized (mPackages) {
12972                            retCode = PackageManager.INSTALL_SUCCEEDED;
12973                            pkgList.add(pkg.packageName);
12974                            // Post process args
12975                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12976                                    pkg.applicationInfo.uid);
12977                        }
12978                    } else {
12979                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12980                    }
12981                }
12982
12983            } finally {
12984                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12985                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12986                }
12987            }
12988        }
12989        // writer
12990        synchronized (mPackages) {
12991            // If the platform SDK has changed since the last time we booted,
12992            // we need to re-grant app permission to catch any new ones that
12993            // appear. This is really a hack, and means that apps can in some
12994            // cases get permissions that the user didn't initially explicitly
12995            // allow... it would be nice to have some better way to handle
12996            // this situation.
12997            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12998            if (regrantPermissions)
12999                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
13000                        + mSdkVersion + "; regranting permissions for external storage");
13001            mSettings.mExternalSdkPlatform = mSdkVersion;
13002
13003            // Make sure group IDs have been assigned, and any permission
13004            // changes in other apps are accounted for
13005            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
13006                    | (regrantPermissions
13007                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
13008                            : 0));
13009
13010            mSettings.updateExternalDatabaseVersion();
13011
13012            // can downgrade to reader
13013            // Persist settings
13014            mSettings.writeLPr();
13015        }
13016        // Send a broadcast to let everyone know we are done processing
13017        if (pkgList.size() > 0) {
13018            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
13019        }
13020    }
13021
13022   /*
13023     * Utility method to unload a list of specified containers
13024     */
13025    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
13026        // Just unmount all valid containers.
13027        for (AsecInstallArgs arg : cidArgs) {
13028            synchronized (mInstallLock) {
13029                arg.doPostDeleteLI(false);
13030           }
13031       }
13032   }
13033
13034    /*
13035     * Unload packages mounted on external media. This involves deleting package
13036     * data from internal structures, sending broadcasts about diabled packages,
13037     * gc'ing to free up references, unmounting all secure containers
13038     * corresponding to packages on external media, and posting a
13039     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
13040     * that we always have to post this message if status has been requested no
13041     * matter what.
13042     */
13043    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
13044            final boolean reportStatus) {
13045        if (DEBUG_SD_INSTALL)
13046            Log.i(TAG, "unloading media packages");
13047        ArrayList<String> pkgList = new ArrayList<String>();
13048        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
13049        final Set<AsecInstallArgs> keys = processCids.keySet();
13050        for (AsecInstallArgs args : keys) {
13051            String pkgName = args.getPackageName();
13052            if (DEBUG_SD_INSTALL)
13053                Log.i(TAG, "Trying to unload pkg : " + pkgName);
13054            // Delete package internally
13055            PackageRemovedInfo outInfo = new PackageRemovedInfo();
13056            synchronized (mInstallLock) {
13057                boolean res = deletePackageLI(pkgName, null, false, null, null,
13058                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
13059                if (res) {
13060                    pkgList.add(pkgName);
13061                } else {
13062                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
13063                    failedList.add(args);
13064                }
13065            }
13066        }
13067
13068        // reader
13069        synchronized (mPackages) {
13070            // We didn't update the settings after removing each package;
13071            // write them now for all packages.
13072            mSettings.writeLPr();
13073        }
13074
13075        // We have to absolutely send UPDATED_MEDIA_STATUS only
13076        // after confirming that all the receivers processed the ordered
13077        // broadcast when packages get disabled, force a gc to clean things up.
13078        // and unload all the containers.
13079        if (pkgList.size() > 0) {
13080            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13081                    new IIntentReceiver.Stub() {
13082                public void performReceive(Intent intent, int resultCode, String data,
13083                        Bundle extras, boolean ordered, boolean sticky,
13084                        int sendingUser) throws RemoteException {
13085                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13086                            reportStatus ? 1 : 0, 1, keys);
13087                    mHandler.sendMessage(msg);
13088                }
13089            });
13090        } else {
13091            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13092                    keys);
13093            mHandler.sendMessage(msg);
13094        }
13095    }
13096
13097    /** Binder call */
13098    @Override
13099    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13100            final int flags) {
13101        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13102        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13103        int returnCode = PackageManager.MOVE_SUCCEEDED;
13104        int currInstallFlags = 0;
13105        int newInstallFlags = 0;
13106
13107        File codeFile = null;
13108        String installerPackageName = null;
13109        String packageAbiOverride = null;
13110
13111        // reader
13112        synchronized (mPackages) {
13113            final PackageParser.Package pkg = mPackages.get(packageName);
13114            final PackageSetting ps = mSettings.mPackages.get(packageName);
13115            if (pkg == null || ps == null) {
13116                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13117            } else {
13118                // Disable moving fwd locked apps and system packages
13119                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13120                    Slog.w(TAG, "Cannot move system application");
13121                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13122                } else if (pkg.mOperationPending) {
13123                    Slog.w(TAG, "Attempt to move package which has pending operations");
13124                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13125                } else {
13126                    // Find install location first
13127                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13128                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13129                        Slog.w(TAG, "Ambigous flags specified for move location.");
13130                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13131                    } else {
13132                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13133                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13134                        currInstallFlags = isExternal(pkg)
13135                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13136
13137                        if (newInstallFlags == currInstallFlags) {
13138                            Slog.w(TAG, "No move required. Trying to move to same location");
13139                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13140                        } else {
13141                            if (isForwardLocked(pkg)) {
13142                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13143                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13144                            }
13145                        }
13146                    }
13147                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13148                        pkg.mOperationPending = true;
13149                    }
13150                }
13151
13152                codeFile = new File(pkg.codePath);
13153                installerPackageName = ps.installerPackageName;
13154                packageAbiOverride = ps.cpuAbiOverrideString;
13155            }
13156        }
13157
13158        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13159            try {
13160                observer.packageMoved(packageName, returnCode);
13161            } catch (RemoteException ignored) {
13162            }
13163            return;
13164        }
13165
13166        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13167            @Override
13168            public void onUserActionRequired(Intent intent) throws RemoteException {
13169                throw new IllegalStateException();
13170            }
13171
13172            @Override
13173            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13174                    Bundle extras) throws RemoteException {
13175                Slog.d(TAG, "Install result for move: "
13176                        + PackageManager.installStatusToString(returnCode, msg));
13177
13178                // We usually have a new package now after the install, but if
13179                // we failed we need to clear the pending flag on the original
13180                // package object.
13181                synchronized (mPackages) {
13182                    final PackageParser.Package pkg = mPackages.get(packageName);
13183                    if (pkg != null) {
13184                        pkg.mOperationPending = false;
13185                    }
13186                }
13187
13188                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13189                switch (status) {
13190                    case PackageInstaller.STATUS_SUCCESS:
13191                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13192                        break;
13193                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13194                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13195                        break;
13196                    default:
13197                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13198                        break;
13199                }
13200            }
13201        };
13202
13203        // Treat a move like reinstalling an existing app, which ensures that we
13204        // process everythign uniformly, like unpacking native libraries.
13205        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13206
13207        final Message msg = mHandler.obtainMessage(INIT_COPY);
13208        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13209        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13210                installerPackageName, null, user, packageAbiOverride);
13211        mHandler.sendMessage(msg);
13212    }
13213
13214    @Override
13215    public boolean setInstallLocation(int loc) {
13216        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13217                null);
13218        if (getInstallLocation() == loc) {
13219            return true;
13220        }
13221        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13222                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13223            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13224                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13225            return true;
13226        }
13227        return false;
13228   }
13229
13230    @Override
13231    public int getInstallLocation() {
13232        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13233                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13234                PackageHelper.APP_INSTALL_AUTO);
13235    }
13236
13237    /** Called by UserManagerService */
13238    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13239        mDirtyUsers.remove(userHandle);
13240        mSettings.removeUserLPw(userHandle);
13241        mPendingBroadcasts.remove(userHandle);
13242        if (mInstaller != null) {
13243            // Technically, we shouldn't be doing this with the package lock
13244            // held.  However, this is very rare, and there is already so much
13245            // other disk I/O going on, that we'll let it slide for now.
13246            mInstaller.removeUserDataDirs(userHandle);
13247        }
13248        mUserNeedsBadging.delete(userHandle);
13249        removeUnusedPackagesLILPw(userManager, userHandle);
13250    }
13251
13252    /**
13253     * We're removing userHandle and would like to remove any downloaded packages
13254     * that are no longer in use by any other user.
13255     * @param userHandle the user being removed
13256     */
13257    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13258        final boolean DEBUG_CLEAN_APKS = false;
13259        int [] users = userManager.getUserIdsLPr();
13260        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13261        while (psit.hasNext()) {
13262            PackageSetting ps = psit.next();
13263            if (ps.pkg == null) {
13264                continue;
13265            }
13266            final String packageName = ps.pkg.packageName;
13267            // Skip over if system app
13268            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13269                continue;
13270            }
13271            if (DEBUG_CLEAN_APKS) {
13272                Slog.i(TAG, "Checking package " + packageName);
13273            }
13274            boolean keep = false;
13275            for (int i = 0; i < users.length; i++) {
13276                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13277                    keep = true;
13278                    if (DEBUG_CLEAN_APKS) {
13279                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13280                                + users[i]);
13281                    }
13282                    break;
13283                }
13284            }
13285            if (!keep) {
13286                if (DEBUG_CLEAN_APKS) {
13287                    Slog.i(TAG, "  Removing package " + packageName);
13288                }
13289                mHandler.post(new Runnable() {
13290                    public void run() {
13291                        deletePackageX(packageName, userHandle, 0);
13292                    } //end run
13293                });
13294            }
13295        }
13296    }
13297
13298    /** Called by UserManagerService */
13299    void createNewUserLILPw(int userHandle, File path) {
13300        if (mInstaller != null) {
13301            mInstaller.createUserConfig(userHandle);
13302            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13303        }
13304    }
13305
13306    @Override
13307    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13308        mContext.enforceCallingOrSelfPermission(
13309                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13310                "Only package verification agents can read the verifier device identity");
13311
13312        synchronized (mPackages) {
13313            return mSettings.getVerifierDeviceIdentityLPw();
13314        }
13315    }
13316
13317    @Override
13318    public void setPermissionEnforced(String permission, boolean enforced) {
13319        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13320        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13321            synchronized (mPackages) {
13322                if (mSettings.mReadExternalStorageEnforced == null
13323                        || mSettings.mReadExternalStorageEnforced != enforced) {
13324                    mSettings.mReadExternalStorageEnforced = enforced;
13325                    mSettings.writeLPr();
13326                }
13327            }
13328            // kill any non-foreground processes so we restart them and
13329            // grant/revoke the GID.
13330            final IActivityManager am = ActivityManagerNative.getDefault();
13331            if (am != null) {
13332                final long token = Binder.clearCallingIdentity();
13333                try {
13334                    am.killProcessesBelowForeground("setPermissionEnforcement");
13335                } catch (RemoteException e) {
13336                } finally {
13337                    Binder.restoreCallingIdentity(token);
13338                }
13339            }
13340        } else {
13341            throw new IllegalArgumentException("No selective enforcement for " + permission);
13342        }
13343    }
13344
13345    @Override
13346    @Deprecated
13347    public boolean isPermissionEnforced(String permission) {
13348        return true;
13349    }
13350
13351    @Override
13352    public boolean isStorageLow() {
13353        final long token = Binder.clearCallingIdentity();
13354        try {
13355            final DeviceStorageMonitorInternal
13356                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13357            if (dsm != null) {
13358                return dsm.isMemoryLow();
13359            } else {
13360                return false;
13361            }
13362        } finally {
13363            Binder.restoreCallingIdentity(token);
13364        }
13365    }
13366
13367    @Override
13368    public IPackageInstaller getPackageInstaller() {
13369        return mInstallerService;
13370    }
13371
13372    private boolean userNeedsBadging(int userId) {
13373        int index = mUserNeedsBadging.indexOfKey(userId);
13374        if (index < 0) {
13375            final UserInfo userInfo;
13376            final long token = Binder.clearCallingIdentity();
13377            try {
13378                userInfo = sUserManager.getUserInfo(userId);
13379            } finally {
13380                Binder.restoreCallingIdentity(token);
13381            }
13382            final boolean b;
13383            if (userInfo != null && userInfo.isManagedProfile()) {
13384                b = true;
13385            } else {
13386                b = false;
13387            }
13388            mUserNeedsBadging.put(userId, b);
13389            return b;
13390        }
13391        return mUserNeedsBadging.valueAt(index);
13392    }
13393
13394    @Override
13395    public KeySet getKeySetByAlias(String packageName, String alias) {
13396        if (packageName == null || alias == null) {
13397            return null;
13398        }
13399        synchronized(mPackages) {
13400            final PackageParser.Package pkg = mPackages.get(packageName);
13401            if (pkg == null) {
13402                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13403                throw new IllegalArgumentException("Unknown package: " + packageName);
13404            }
13405            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13406            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13407        }
13408    }
13409
13410    @Override
13411    public KeySet getSigningKeySet(String packageName) {
13412        if (packageName == null) {
13413            return null;
13414        }
13415        synchronized(mPackages) {
13416            final PackageParser.Package pkg = mPackages.get(packageName);
13417            if (pkg == null) {
13418                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13419                throw new IllegalArgumentException("Unknown package: " + packageName);
13420            }
13421            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13422                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13423                throw new SecurityException("May not access signing KeySet of other apps.");
13424            }
13425            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13426            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13427        }
13428    }
13429
13430    @Override
13431    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13432        if (packageName == null || ks == null) {
13433            return false;
13434        }
13435        synchronized(mPackages) {
13436            final PackageParser.Package pkg = mPackages.get(packageName);
13437            if (pkg == null) {
13438                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13439                throw new IllegalArgumentException("Unknown package: " + packageName);
13440            }
13441            IBinder ksh = ks.getToken();
13442            if (ksh instanceof KeySetHandle) {
13443                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13444                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13445            }
13446            return false;
13447        }
13448    }
13449
13450    @Override
13451    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13452        if (packageName == null || ks == null) {
13453            return false;
13454        }
13455        synchronized(mPackages) {
13456            final PackageParser.Package pkg = mPackages.get(packageName);
13457            if (pkg == null) {
13458                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13459                throw new IllegalArgumentException("Unknown package: " + packageName);
13460            }
13461            IBinder ksh = ks.getToken();
13462            if (ksh instanceof KeySetHandle) {
13463                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13464                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13465            }
13466            return false;
13467        }
13468    }
13469
13470    public void getUsageStatsIfNoPackageUsageInfo() {
13471        if (!mPackageUsage.isHistoricalPackageUsageAvailable()) {
13472            UsageStatsManager usm = (UsageStatsManager) mContext.getSystemService(Context.USAGE_STATS_SERVICE);
13473            if (usm == null) {
13474                throw new IllegalStateException("UsageStatsManager must be initialized");
13475            }
13476            long now = System.currentTimeMillis();
13477            Map<String, UsageStats> stats = usm.queryAndAggregateUsageStats(now - mDexOptLRUThresholdInMills, now);
13478            for (Map.Entry<String, UsageStats> entry : stats.entrySet()) {
13479                String packageName = entry.getKey();
13480                PackageParser.Package pkg = mPackages.get(packageName);
13481                if (pkg == null) {
13482                    continue;
13483                }
13484                UsageStats usage = entry.getValue();
13485                pkg.mLastPackageUsageTimeInMills = usage.getLastTimeUsed();
13486                mPackageUsage.mIsHistoricalPackageUsageAvailable = true;
13487            }
13488        }
13489    }
13490}
13491