PackageManagerService.java revision 2e594cfe9848b56ad71a6f7bc4de13df7a36511c 
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.content.BroadcastReceiver;
88import android.content.ComponentName;
89import android.content.Context;
90import android.content.IIntentReceiver;
91import android.content.Intent;
92import android.content.IntentFilter;
93import android.content.IntentSender;
94import android.content.IntentSender.SendIntentException;
95import android.content.ServiceConnection;
96import android.content.pm.ActivityInfo;
97import android.content.pm.ApplicationInfo;
98import android.content.pm.FeatureInfo;
99import android.content.pm.IPackageDataObserver;
100import android.content.pm.IPackageDeleteObserver;
101import android.content.pm.IPackageDeleteObserver2;
102import android.content.pm.IPackageInstallObserver2;
103import android.content.pm.IPackageInstaller;
104import android.content.pm.IPackageManager;
105import android.content.pm.IPackageMoveObserver;
106import android.content.pm.IPackageStatsObserver;
107import android.content.pm.InstrumentationInfo;
108import android.content.pm.KeySet;
109import android.content.pm.ManifestDigest;
110import android.content.pm.PackageCleanItem;
111import android.content.pm.PackageInfo;
112import android.content.pm.PackageInfoLite;
113import android.content.pm.PackageInstaller;
114import android.content.pm.PackageManager;
115import android.content.pm.PackageManager.LegacyPackageDeleteObserver;
116import android.content.pm.PackageParser.ActivityIntentInfo;
117import android.content.pm.PackageParser.PackageLite;
118import android.content.pm.PackageParser.PackageParserException;
119import android.content.pm.PackageParser;
120import android.content.pm.PackageStats;
121import android.content.pm.PackageUserState;
122import android.content.pm.ParceledListSlice;
123import android.content.pm.PermissionGroupInfo;
124import android.content.pm.PermissionInfo;
125import android.content.pm.ProviderInfo;
126import android.content.pm.ResolveInfo;
127import android.content.pm.ServiceInfo;
128import android.content.pm.Signature;
129import android.content.pm.UserInfo;
130import android.content.pm.VerificationParams;
131import android.content.pm.VerifierDeviceIdentity;
132import android.content.pm.VerifierInfo;
133import android.content.res.Resources;
134import android.hardware.display.DisplayManager;
135import android.net.Uri;
136import android.os.Binder;
137import android.os.Build;
138import android.os.Bundle;
139import android.os.Environment;
140import android.os.Environment.UserEnvironment;
141import android.os.storage.StorageManager;
142import android.os.Debug;
143import android.os.FileUtils;
144import android.os.Handler;
145import android.os.IBinder;
146import android.os.Looper;
147import android.os.Message;
148import android.os.Parcel;
149import android.os.ParcelFileDescriptor;
150import android.os.Process;
151import android.os.RemoteException;
152import android.os.SELinux;
153import android.os.ServiceManager;
154import android.os.SystemClock;
155import android.os.SystemProperties;
156import android.os.UserHandle;
157import android.os.UserManager;
158import android.security.KeyStore;
159import android.security.SystemKeyStore;
160import android.system.ErrnoException;
161import android.system.Os;
162import android.system.StructStat;
163import android.text.TextUtils;
164import android.util.ArraySet;
165import android.util.AtomicFile;
166import android.util.DisplayMetrics;
167import android.util.EventLog;
168import android.util.ExceptionUtils;
169import android.util.Log;
170import android.util.LogPrinter;
171import android.util.PrintStreamPrinter;
172import android.util.Slog;
173import android.util.SparseArray;
174import android.util.SparseBooleanArray;
175import android.view.Display;
176
177import java.io.BufferedInputStream;
178import java.io.BufferedOutputStream;
179import java.io.BufferedReader;
180import java.io.File;
181import java.io.FileDescriptor;
182import java.io.FileInputStream;
183import java.io.FileNotFoundException;
184import java.io.FileOutputStream;
185import java.io.FileReader;
186import java.io.FilenameFilter;
187import java.io.IOException;
188import java.io.InputStream;
189import java.io.PrintWriter;
190import java.nio.charset.StandardCharsets;
191import java.security.NoSuchAlgorithmException;
192import java.security.PublicKey;
193import java.security.cert.CertificateEncodingException;
194import java.security.cert.CertificateException;
195import java.text.SimpleDateFormat;
196import java.util.ArrayList;
197import java.util.Arrays;
198import java.util.Collection;
199import java.util.Collections;
200import java.util.Comparator;
201import java.util.Date;
202import java.util.HashMap;
203import java.util.HashSet;
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 DisplayMetrics mMetrics;
333    final int mDefParseFlags;
334    final String[] mSeparateProcesses;
335    final boolean mIsUpgrade;
336
337    // This is where all application persistent data goes.
338    final File mAppDataDir;
339
340    // This is where all application persistent data goes for secondary users.
341    final File mUserAppDataDir;
342
343    /** The location for ASEC container files on internal storage. */
344    final String mAsecInternalPath;
345
346    // Used for privilege escalation. MUST NOT BE CALLED WITH mPackages
347    // LOCK HELD.  Can be called with mInstallLock held.
348    final Installer mInstaller;
349
350    /** Directory where installed third-party apps stored */
351    final File mAppInstallDir;
352
353    /**
354     * Directory to which applications installed internally have their
355     * 32 bit native libraries copied.
356     */
357    private File mAppLib32InstallDir;
358
359    // Directory containing the private parts (e.g. code and non-resource assets) of forward-locked
360    // apps.
361    final File mDrmAppPrivateInstallDir;
362
363    // ----------------------------------------------------------------
364
365    // Lock for state used when installing and doing other long running
366    // operations.  Methods that must be called with this lock held have
367    // the suffix "LI".
368    final Object mInstallLock = new Object();
369
370    // ----------------------------------------------------------------
371
372    // Keys are String (package name), values are Package.  This also serves
373    // as the lock for the global state.  Methods that must be called with
374    // this lock held have the prefix "LP".
375    final HashMap<String, PackageParser.Package> mPackages =
376            new HashMap<String, PackageParser.Package>();
377
378    // Tracks available target package names -> overlay package paths.
379    final HashMap<String, HashMap<String, PackageParser.Package>> mOverlays =
380        new HashMap<String, HashMap<String, PackageParser.Package>>();
381
382    final Settings mSettings;
383    boolean mRestoredSettings;
384
385    // System configuration read by SystemConfig.
386    final int[] mGlobalGids;
387    final SparseArray<HashSet<String>> mSystemPermissions;
388    final HashMap<String, FeatureInfo> mAvailableFeatures;
389
390    // If mac_permissions.xml was found for seinfo labeling.
391    boolean mFoundPolicyFile;
392
393    // If a recursive restorecon of /data/data/<pkg> is needed.
394    private boolean mShouldRestoreconData = SELinuxMMAC.shouldRestorecon();
395
396    public static final class SharedLibraryEntry {
397        public final String path;
398        public final String apk;
399
400        SharedLibraryEntry(String _path, String _apk) {
401            path = _path;
402            apk = _apk;
403        }
404    }
405
406    // Currently known shared libraries.
407    final HashMap<String, SharedLibraryEntry> mSharedLibraries =
408            new HashMap<String, SharedLibraryEntry>();
409
410    // All available activities, for your resolving pleasure.
411    final ActivityIntentResolver mActivities =
412            new ActivityIntentResolver();
413
414    // All available receivers, for your resolving pleasure.
415    final ActivityIntentResolver mReceivers =
416            new ActivityIntentResolver();
417
418    // All available services, for your resolving pleasure.
419    final ServiceIntentResolver mServices = new ServiceIntentResolver();
420
421    // All available providers, for your resolving pleasure.
422    final ProviderIntentResolver mProviders = new ProviderIntentResolver();
423
424    // Mapping from provider base names (first directory in content URI codePath)
425    // to the provider information.
426    final HashMap<String, PackageParser.Provider> mProvidersByAuthority =
427            new HashMap<String, PackageParser.Provider>();
428
429    // Mapping from instrumentation class names to info about them.
430    final HashMap<ComponentName, PackageParser.Instrumentation> mInstrumentation =
431            new HashMap<ComponentName, PackageParser.Instrumentation>();
432
433    // Mapping from permission names to info about them.
434    final HashMap<String, PackageParser.PermissionGroup> mPermissionGroups =
435            new HashMap<String, PackageParser.PermissionGroup>();
436
437    // Packages whose data we have transfered into another package, thus
438    // should no longer exist.
439    final HashSet<String> mTransferedPackages = new HashSet<String>();
440
441    // Broadcast actions that are only available to the system.
442    final HashSet<String> mProtectedBroadcasts = new HashSet<String>();
443
444    /** List of packages waiting for verification. */
445    final SparseArray<PackageVerificationState> mPendingVerification
446            = new SparseArray<PackageVerificationState>();
447
448    /** Set of packages associated with each app op permission. */
449    final ArrayMap<String, ArraySet<String>> mAppOpPermissionPackages = new ArrayMap<>();
450
451    final PackageInstallerService mInstallerService;
452
453    HashSet<PackageParser.Package> mDeferredDexOpt = null;
454
455    // Cache of users who need badging.
456    SparseBooleanArray mUserNeedsBadging = new SparseBooleanArray();
457
458    /** Token for keys in mPendingVerification. */
459    private int mPendingVerificationToken = 0;
460
461    volatile boolean mSystemReady;
462    volatile boolean mSafeMode;
463    volatile boolean mHasSystemUidErrors;
464
465    ApplicationInfo mAndroidApplication;
466    final ActivityInfo mResolveActivity = new ActivityInfo();
467    final ResolveInfo mResolveInfo = new ResolveInfo();
468    ComponentName mResolveComponentName;
469    PackageParser.Package mPlatformPackage;
470    ComponentName mCustomResolverComponentName;
471
472    boolean mResolverReplaced = false;
473
474    // Set of pending broadcasts for aggregating enable/disable of components.
475    static class PendingPackageBroadcasts {
476        // for each user id, a map of <package name -> components within that package>
477        final SparseArray<HashMap<String, ArrayList<String>>> mUidMap;
478
479        public PendingPackageBroadcasts() {
480            mUidMap = new SparseArray<HashMap<String, ArrayList<String>>>(2);
481        }
482
483        public ArrayList<String> get(int userId, String packageName) {
484            HashMap<String, ArrayList<String>> packages = getOrAllocate(userId);
485            return packages.get(packageName);
486        }
487
488        public void put(int userId, String packageName, ArrayList<String> components) {
489            HashMap<String, ArrayList<String>> packages = getOrAllocate(userId);
490            packages.put(packageName, components);
491        }
492
493        public void remove(int userId, String packageName) {
494            HashMap<String, ArrayList<String>> packages = mUidMap.get(userId);
495            if (packages != null) {
496                packages.remove(packageName);
497            }
498        }
499
500        public void remove(int userId) {
501            mUidMap.remove(userId);
502        }
503
504        public int userIdCount() {
505            return mUidMap.size();
506        }
507
508        public int userIdAt(int n) {
509            return mUidMap.keyAt(n);
510        }
511
512        public HashMap<String, ArrayList<String>> packagesForUserId(int userId) {
513            return mUidMap.get(userId);
514        }
515
516        public int size() {
517            // total number of pending broadcast entries across all userIds
518            int num = 0;
519            for (int i = 0; i< mUidMap.size(); i++) {
520                num += mUidMap.valueAt(i).size();
521            }
522            return num;
523        }
524
525        public void clear() {
526            mUidMap.clear();
527        }
528
529        private HashMap<String, ArrayList<String>> getOrAllocate(int userId) {
530            HashMap<String, ArrayList<String>> map = mUidMap.get(userId);
531            if (map == null) {
532                map = new HashMap<String, ArrayList<String>>();
533                mUidMap.put(userId, map);
534            }
535            return map;
536        }
537    }
538    final PendingPackageBroadcasts mPendingBroadcasts = new PendingPackageBroadcasts();
539
540    // Service Connection to remote media container service to copy
541    // package uri's from external media onto secure containers
542    // or internal storage.
543    private IMediaContainerService mContainerService = null;
544
545    static final int SEND_PENDING_BROADCAST = 1;
546    static final int MCS_BOUND = 3;
547    static final int END_COPY = 4;
548    static final int INIT_COPY = 5;
549    static final int MCS_UNBIND = 6;
550    static final int START_CLEANING_PACKAGE = 7;
551    static final int FIND_INSTALL_LOC = 8;
552    static final int POST_INSTALL = 9;
553    static final int MCS_RECONNECT = 10;
554    static final int MCS_GIVE_UP = 11;
555    static final int UPDATED_MEDIA_STATUS = 12;
556    static final int WRITE_SETTINGS = 13;
557    static final int WRITE_PACKAGE_RESTRICTIONS = 14;
558    static final int PACKAGE_VERIFIED = 15;
559    static final int CHECK_PENDING_VERIFICATION = 16;
560
561    static final int WRITE_SETTINGS_DELAY = 10*1000;  // 10 seconds
562
563    // Delay time in millisecs
564    static final int BROADCAST_DELAY = 10 * 1000;
565
566    static UserManagerService sUserManager;
567
568    // Stores a list of users whose package restrictions file needs to be updated
569    private HashSet<Integer> mDirtyUsers = new HashSet<Integer>();
570
571    final private DefaultContainerConnection mDefContainerConn =
572            new DefaultContainerConnection();
573    class DefaultContainerConnection implements ServiceConnection {
574        public void onServiceConnected(ComponentName name, IBinder service) {
575            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceConnected");
576            IMediaContainerService imcs =
577                IMediaContainerService.Stub.asInterface(service);
578            mHandler.sendMessage(mHandler.obtainMessage(MCS_BOUND, imcs));
579        }
580
581        public void onServiceDisconnected(ComponentName name) {
582            if (DEBUG_SD_INSTALL) Log.i(TAG, "onServiceDisconnected");
583        }
584    };
585
586    // Recordkeeping of restore-after-install operations that are currently in flight
587    // between the Package Manager and the Backup Manager
588    class PostInstallData {
589        public InstallArgs args;
590        public PackageInstalledInfo res;
591
592        PostInstallData(InstallArgs _a, PackageInstalledInfo _r) {
593            args = _a;
594            res = _r;
595        }
596    };
597    final SparseArray<PostInstallData> mRunningInstalls = new SparseArray<PostInstallData>();
598    int mNextInstallToken = 1;  // nonzero; will be wrapped back to 1 when ++ overflows
599
600    private final String mRequiredVerifierPackage;
601
602    private final PackageUsage mPackageUsage = new PackageUsage();
603
604    private class PackageUsage {
605        private static final int WRITE_INTERVAL
606            = (DEBUG_DEXOPT) ? 0 : 30*60*1000; // 30m in ms
607
608        private final Object mFileLock = new Object();
609        private final AtomicLong mLastWritten = new AtomicLong(0);
610        private final AtomicBoolean mBackgroundWriteRunning = new AtomicBoolean(false);
611
612        private boolean mIsHistoricalPackageUsageAvailable = true;
613
614        boolean isHistoricalPackageUsageAvailable() {
615            return mIsHistoricalPackageUsageAvailable;
616        }
617
618        void write(boolean force) {
619            if (force) {
620                writeInternal();
621                return;
622            }
623            if (SystemClock.elapsedRealtime() - mLastWritten.get() < WRITE_INTERVAL
624                && !DEBUG_DEXOPT) {
625                return;
626            }
627            if (mBackgroundWriteRunning.compareAndSet(false, true)) {
628                new Thread("PackageUsage_DiskWriter") {
629                    @Override
630                    public void run() {
631                        try {
632                            writeInternal();
633                        } finally {
634                            mBackgroundWriteRunning.set(false);
635                        }
636                    }
637                }.start();
638            }
639        }
640
641        private void writeInternal() {
642            synchronized (mPackages) {
643                synchronized (mFileLock) {
644                    AtomicFile file = getFile();
645                    FileOutputStream f = null;
646                    try {
647                        f = file.startWrite();
648                        BufferedOutputStream out = new BufferedOutputStream(f);
649                        FileUtils.setPermissions(file.getBaseFile().getPath(), 0660, SYSTEM_UID, PACKAGE_INFO_GID);
650                        StringBuilder sb = new StringBuilder();
651                        for (PackageParser.Package pkg : mPackages.values()) {
652                            if (pkg.mLastPackageUsageTimeInMills == 0) {
653                                continue;
654                            }
655                            sb.setLength(0);
656                            sb.append(pkg.packageName);
657                            sb.append(' ');
658                            sb.append((long)pkg.mLastPackageUsageTimeInMills);
659                            sb.append('\n');
660                            out.write(sb.toString().getBytes(StandardCharsets.US_ASCII));
661                        }
662                        out.flush();
663                        file.finishWrite(f);
664                    } catch (IOException e) {
665                        if (f != null) {
666                            file.failWrite(f);
667                        }
668                        Log.e(TAG, "Failed to write package usage times", e);
669                    }
670                }
671            }
672            mLastWritten.set(SystemClock.elapsedRealtime());
673        }
674
675        void readLP() {
676            synchronized (mFileLock) {
677                AtomicFile file = getFile();
678                BufferedInputStream in = null;
679                try {
680                    in = new BufferedInputStream(file.openRead());
681                    StringBuffer sb = new StringBuffer();
682                    while (true) {
683                        String packageName = readToken(in, sb, ' ');
684                        if (packageName == null) {
685                            break;
686                        }
687                        String timeInMillisString = readToken(in, sb, '\n');
688                        if (timeInMillisString == null) {
689                            throw new IOException("Failed to find last usage time for package "
690                                                  + packageName);
691                        }
692                        PackageParser.Package pkg = mPackages.get(packageName);
693                        if (pkg == null) {
694                            continue;
695                        }
696                        long timeInMillis;
697                        try {
698                            timeInMillis = Long.parseLong(timeInMillisString.toString());
699                        } catch (NumberFormatException e) {
700                            throw new IOException("Failed to parse " + timeInMillisString
701                                                  + " as a long.", e);
702                        }
703                        pkg.mLastPackageUsageTimeInMills = timeInMillis;
704                    }
705                } catch (FileNotFoundException expected) {
706                    mIsHistoricalPackageUsageAvailable = false;
707                } catch (IOException e) {
708                    Log.w(TAG, "Failed to read package usage times", e);
709                } finally {
710                    IoUtils.closeQuietly(in);
711                }
712            }
713            mLastWritten.set(SystemClock.elapsedRealtime());
714        }
715
716        private String readToken(InputStream in, StringBuffer sb, char endOfToken)
717                throws IOException {
718            sb.setLength(0);
719            while (true) {
720                int ch = in.read();
721                if (ch == -1) {
722                    if (sb.length() == 0) {
723                        return null;
724                    }
725                    throw new IOException("Unexpected EOF");
726                }
727                if (ch == endOfToken) {
728                    return sb.toString();
729                }
730                sb.append((char)ch);
731            }
732        }
733
734        private AtomicFile getFile() {
735            File dataDir = Environment.getDataDirectory();
736            File systemDir = new File(dataDir, "system");
737            File fname = new File(systemDir, "package-usage.list");
738            return new AtomicFile(fname);
739        }
740    }
741
742    class PackageHandler extends Handler {
743        private boolean mBound = false;
744        final ArrayList<HandlerParams> mPendingInstalls =
745            new ArrayList<HandlerParams>();
746
747        private boolean connectToService() {
748            if (DEBUG_SD_INSTALL) Log.i(TAG, "Trying to bind to" +
749                    " DefaultContainerService");
750            Intent service = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
751            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
752            if (mContext.bindServiceAsUser(service, mDefContainerConn,
753                    Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
754                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
755                mBound = true;
756                return true;
757            }
758            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
759            return false;
760        }
761
762        private void disconnectService() {
763            mContainerService = null;
764            mBound = false;
765            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
766            mContext.unbindService(mDefContainerConn);
767            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
768        }
769
770        PackageHandler(Looper looper) {
771            super(looper);
772        }
773
774        public void handleMessage(Message msg) {
775            try {
776                doHandleMessage(msg);
777            } finally {
778                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
779            }
780        }
781
782        void doHandleMessage(Message msg) {
783            switch (msg.what) {
784                case INIT_COPY: {
785                    HandlerParams params = (HandlerParams) msg.obj;
786                    int idx = mPendingInstalls.size();
787                    if (DEBUG_INSTALL) Slog.i(TAG, "init_copy idx=" + idx + ": " + params);
788                    // If a bind was already initiated we dont really
789                    // need to do anything. The pending install
790                    // will be processed later on.
791                    if (!mBound) {
792                        // If this is the only one pending we might
793                        // have to bind to the service again.
794                        if (!connectToService()) {
795                            Slog.e(TAG, "Failed to bind to media container service");
796                            params.serviceError();
797                            return;
798                        } else {
799                            // Once we bind to the service, the first
800                            // pending request will be processed.
801                            mPendingInstalls.add(idx, params);
802                        }
803                    } else {
804                        mPendingInstalls.add(idx, params);
805                        // Already bound to the service. Just make
806                        // sure we trigger off processing the first request.
807                        if (idx == 0) {
808                            mHandler.sendEmptyMessage(MCS_BOUND);
809                        }
810                    }
811                    break;
812                }
813                case MCS_BOUND: {
814                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_bound");
815                    if (msg.obj != null) {
816                        mContainerService = (IMediaContainerService) msg.obj;
817                    }
818                    if (mContainerService == null) {
819                        // Something seriously wrong. Bail out
820                        Slog.e(TAG, "Cannot bind to media container service");
821                        for (HandlerParams params : mPendingInstalls) {
822                            // Indicate service bind error
823                            params.serviceError();
824                        }
825                        mPendingInstalls.clear();
826                    } else if (mPendingInstalls.size() > 0) {
827                        HandlerParams params = mPendingInstalls.get(0);
828                        if (params != null) {
829                            if (params.startCopy()) {
830                                // We are done...  look for more work or to
831                                // go idle.
832                                if (DEBUG_SD_INSTALL) Log.i(TAG,
833                                        "Checking for more work or unbind...");
834                                // Delete pending install
835                                if (mPendingInstalls.size() > 0) {
836                                    mPendingInstalls.remove(0);
837                                }
838                                if (mPendingInstalls.size() == 0) {
839                                    if (mBound) {
840                                        if (DEBUG_SD_INSTALL) Log.i(TAG,
841                                                "Posting delayed MCS_UNBIND");
842                                        removeMessages(MCS_UNBIND);
843                                        Message ubmsg = obtainMessage(MCS_UNBIND);
844                                        // Unbind after a little delay, to avoid
845                                        // continual thrashing.
846                                        sendMessageDelayed(ubmsg, 10000);
847                                    }
848                                } else {
849                                    // There are more pending requests in queue.
850                                    // Just post MCS_BOUND message to trigger processing
851                                    // of next pending install.
852                                    if (DEBUG_SD_INSTALL) Log.i(TAG,
853                                            "Posting MCS_BOUND for next work");
854                                    mHandler.sendEmptyMessage(MCS_BOUND);
855                                }
856                            }
857                        }
858                    } else {
859                        // Should never happen ideally.
860                        Slog.w(TAG, "Empty queue");
861                    }
862                    break;
863                }
864                case MCS_RECONNECT: {
865                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_reconnect");
866                    if (mPendingInstalls.size() > 0) {
867                        if (mBound) {
868                            disconnectService();
869                        }
870                        if (!connectToService()) {
871                            Slog.e(TAG, "Failed to bind to media container service");
872                            for (HandlerParams params : mPendingInstalls) {
873                                // Indicate service bind error
874                                params.serviceError();
875                            }
876                            mPendingInstalls.clear();
877                        }
878                    }
879                    break;
880                }
881                case MCS_UNBIND: {
882                    // If there is no actual work left, then time to unbind.
883                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_unbind");
884
885                    if (mPendingInstalls.size() == 0 && mPendingVerification.size() == 0) {
886                        if (mBound) {
887                            if (DEBUG_INSTALL) Slog.i(TAG, "calling disconnectService()");
888
889                            disconnectService();
890                        }
891                    } else if (mPendingInstalls.size() > 0) {
892                        // There are more pending requests in queue.
893                        // Just post MCS_BOUND message to trigger processing
894                        // of next pending install.
895                        mHandler.sendEmptyMessage(MCS_BOUND);
896                    }
897
898                    break;
899                }
900                case MCS_GIVE_UP: {
901                    if (DEBUG_INSTALL) Slog.i(TAG, "mcs_giveup too many retries");
902                    mPendingInstalls.remove(0);
903                    break;
904                }
905                case SEND_PENDING_BROADCAST: {
906                    String packages[];
907                    ArrayList<String> components[];
908                    int size = 0;
909                    int uids[];
910                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
911                    synchronized (mPackages) {
912                        if (mPendingBroadcasts == null) {
913                            return;
914                        }
915                        size = mPendingBroadcasts.size();
916                        if (size <= 0) {
917                            // Nothing to be done. Just return
918                            return;
919                        }
920                        packages = new String[size];
921                        components = new ArrayList[size];
922                        uids = new int[size];
923                        int i = 0;  // filling out the above arrays
924
925                        for (int n = 0; n < mPendingBroadcasts.userIdCount(); n++) {
926                            int packageUserId = mPendingBroadcasts.userIdAt(n);
927                            Iterator<Map.Entry<String, ArrayList<String>>> it
928                                    = mPendingBroadcasts.packagesForUserId(packageUserId)
929                                            .entrySet().iterator();
930                            while (it.hasNext() && i < size) {
931                                Map.Entry<String, ArrayList<String>> ent = it.next();
932                                packages[i] = ent.getKey();
933                                components[i] = ent.getValue();
934                                PackageSetting ps = mSettings.mPackages.get(ent.getKey());
935                                uids[i] = (ps != null)
936                                        ? UserHandle.getUid(packageUserId, ps.appId)
937                                        : -1;
938                                i++;
939                            }
940                        }
941                        size = i;
942                        mPendingBroadcasts.clear();
943                    }
944                    // Send broadcasts
945                    for (int i = 0; i < size; i++) {
946                        sendPackageChangedBroadcast(packages[i], true, components[i], uids[i]);
947                    }
948                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
949                    break;
950                }
951                case START_CLEANING_PACKAGE: {
952                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
953                    final String packageName = (String)msg.obj;
954                    final int userId = msg.arg1;
955                    final boolean andCode = msg.arg2 != 0;
956                    synchronized (mPackages) {
957                        if (userId == UserHandle.USER_ALL) {
958                            int[] users = sUserManager.getUserIds();
959                            for (int user : users) {
960                                mSettings.addPackageToCleanLPw(
961                                        new PackageCleanItem(user, packageName, andCode));
962                            }
963                        } else {
964                            mSettings.addPackageToCleanLPw(
965                                    new PackageCleanItem(userId, packageName, andCode));
966                        }
967                    }
968                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
969                    startCleaningPackages();
970                } break;
971                case POST_INSTALL: {
972                    if (DEBUG_INSTALL) Log.v(TAG, "Handling post-install for " + msg.arg1);
973                    PostInstallData data = mRunningInstalls.get(msg.arg1);
974                    mRunningInstalls.delete(msg.arg1);
975                    boolean deleteOld = false;
976
977                    if (data != null) {
978                        InstallArgs args = data.args;
979                        PackageInstalledInfo res = data.res;
980
981                        if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
982                            res.removedInfo.sendBroadcast(false, true, false);
983                            Bundle extras = new Bundle(1);
984                            extras.putInt(Intent.EXTRA_UID, res.uid);
985                            // Determine the set of users who are adding this
986                            // package for the first time vs. those who are seeing
987                            // an update.
988                            int[] firstUsers;
989                            int[] updateUsers = new int[0];
990                            if (res.origUsers == null || res.origUsers.length == 0) {
991                                firstUsers = res.newUsers;
992                            } else {
993                                firstUsers = new int[0];
994                                for (int i=0; i<res.newUsers.length; i++) {
995                                    int user = res.newUsers[i];
996                                    boolean isNew = true;
997                                    for (int j=0; j<res.origUsers.length; j++) {
998                                        if (res.origUsers[j] == user) {
999                                            isNew = false;
1000                                            break;
1001                                        }
1002                                    }
1003                                    if (isNew) {
1004                                        int[] newFirst = new int[firstUsers.length+1];
1005                                        System.arraycopy(firstUsers, 0, newFirst, 0,
1006                                                firstUsers.length);
1007                                        newFirst[firstUsers.length] = user;
1008                                        firstUsers = newFirst;
1009                                    } else {
1010                                        int[] newUpdate = new int[updateUsers.length+1];
1011                                        System.arraycopy(updateUsers, 0, newUpdate, 0,
1012                                                updateUsers.length);
1013                                        newUpdate[updateUsers.length] = user;
1014                                        updateUsers = newUpdate;
1015                                    }
1016                                }
1017                            }
1018                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1019                                    res.pkg.applicationInfo.packageName,
1020                                    extras, null, null, firstUsers);
1021                            final boolean update = res.removedInfo.removedPackage != null;
1022                            if (update) {
1023                                extras.putBoolean(Intent.EXTRA_REPLACING, true);
1024                            }
1025                            sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
1026                                    res.pkg.applicationInfo.packageName,
1027                                    extras, null, null, updateUsers);
1028                            if (update) {
1029                                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED,
1030                                        res.pkg.applicationInfo.packageName,
1031                                        extras, null, null, updateUsers);
1032                                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED,
1033                                        null, null,
1034                                        res.pkg.applicationInfo.packageName, null, updateUsers);
1035
1036                                // treat asec-hosted packages like removable media on upgrade
1037                                if (isForwardLocked(res.pkg) || isExternal(res.pkg)) {
1038                                    if (DEBUG_INSTALL) {
1039                                        Slog.i(TAG, "upgrading pkg " + res.pkg
1040                                                + " is ASEC-hosted -> AVAILABLE");
1041                                    }
1042                                    int[] uidArray = new int[] { res.pkg.applicationInfo.uid };
1043                                    ArrayList<String> pkgList = new ArrayList<String>(1);
1044                                    pkgList.add(res.pkg.applicationInfo.packageName);
1045                                    sendResourcesChangedBroadcast(true, true,
1046                                            pkgList,uidArray, null);
1047                                }
1048                            }
1049                            if (res.removedInfo.args != null) {
1050                                // Remove the replaced package's older resources safely now
1051                                deleteOld = true;
1052                            }
1053
1054                            // Log current value of "unknown sources" setting
1055                            EventLog.writeEvent(EventLogTags.UNKNOWN_SOURCES_ENABLED,
1056                                getUnknownSourcesSettings());
1057                        }
1058                        // Force a gc to clear up things
1059                        Runtime.getRuntime().gc();
1060                        // We delete after a gc for applications  on sdcard.
1061                        if (deleteOld) {
1062                            synchronized (mInstallLock) {
1063                                res.removedInfo.args.doPostDeleteLI(true);
1064                            }
1065                        }
1066                        if (args.observer != null) {
1067                            try {
1068                                Bundle extras = extrasForInstallResult(res);
1069                                args.observer.onPackageInstalled(res.name, res.returnCode,
1070                                        res.returnMsg, extras);
1071                            } catch (RemoteException e) {
1072                                Slog.i(TAG, "Observer no longer exists.");
1073                            }
1074                        }
1075                    } else {
1076                        Slog.e(TAG, "Bogus post-install token " + msg.arg1);
1077                    }
1078                } break;
1079                case UPDATED_MEDIA_STATUS: {
1080                    if (DEBUG_SD_INSTALL) Log.i(TAG, "Got message UPDATED_MEDIA_STATUS");
1081                    boolean reportStatus = msg.arg1 == 1;
1082                    boolean doGc = msg.arg2 == 1;
1083                    if (DEBUG_SD_INSTALL) Log.i(TAG, "reportStatus=" + reportStatus + ", doGc = " + doGc);
1084                    if (doGc) {
1085                        // Force a gc to clear up stale containers.
1086                        Runtime.getRuntime().gc();
1087                    }
1088                    if (msg.obj != null) {
1089                        @SuppressWarnings("unchecked")
1090                        Set<AsecInstallArgs> args = (Set<AsecInstallArgs>) msg.obj;
1091                        if (DEBUG_SD_INSTALL) Log.i(TAG, "Unloading all containers");
1092                        // Unload containers
1093                        unloadAllContainers(args);
1094                    }
1095                    if (reportStatus) {
1096                        try {
1097                            if (DEBUG_SD_INSTALL) Log.i(TAG, "Invoking MountService call back");
1098                            PackageHelper.getMountService().finishMediaUpdate();
1099                        } catch (RemoteException e) {
1100                            Log.e(TAG, "MountService not running?");
1101                        }
1102                    }
1103                } break;
1104                case WRITE_SETTINGS: {
1105                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1106                    synchronized (mPackages) {
1107                        removeMessages(WRITE_SETTINGS);
1108                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1109                        mSettings.writeLPr();
1110                        mDirtyUsers.clear();
1111                    }
1112                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1113                } break;
1114                case WRITE_PACKAGE_RESTRICTIONS: {
1115                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
1116                    synchronized (mPackages) {
1117                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
1118                        for (int userId : mDirtyUsers) {
1119                            mSettings.writePackageRestrictionsLPr(userId);
1120                        }
1121                        mDirtyUsers.clear();
1122                    }
1123                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
1124                } break;
1125                case CHECK_PENDING_VERIFICATION: {
1126                    final int verificationId = msg.arg1;
1127                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1128
1129                    if ((state != null) && !state.timeoutExtended()) {
1130                        final InstallArgs args = state.getInstallArgs();
1131                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1132
1133                        Slog.i(TAG, "Verification timed out for " + originUri);
1134                        mPendingVerification.remove(verificationId);
1135
1136                        int ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1137
1138                        if (getDefaultVerificationResponse() == PackageManager.VERIFICATION_ALLOW) {
1139                            Slog.i(TAG, "Continuing with installation of " + originUri);
1140                            state.setVerifierResponse(Binder.getCallingUid(),
1141                                    PackageManager.VERIFICATION_ALLOW_WITHOUT_SUFFICIENT);
1142                            broadcastPackageVerified(verificationId, originUri,
1143                                    PackageManager.VERIFICATION_ALLOW,
1144                                    state.getInstallArgs().getUser());
1145                            try {
1146                                ret = args.copyApk(mContainerService, true);
1147                            } catch (RemoteException e) {
1148                                Slog.e(TAG, "Could not contact the ContainerService");
1149                            }
1150                        } else {
1151                            broadcastPackageVerified(verificationId, originUri,
1152                                    PackageManager.VERIFICATION_REJECT,
1153                                    state.getInstallArgs().getUser());
1154                        }
1155
1156                        processPendingInstall(args, ret);
1157                        mHandler.sendEmptyMessage(MCS_UNBIND);
1158                    }
1159                    break;
1160                }
1161                case PACKAGE_VERIFIED: {
1162                    final int verificationId = msg.arg1;
1163
1164                    final PackageVerificationState state = mPendingVerification.get(verificationId);
1165                    if (state == null) {
1166                        Slog.w(TAG, "Invalid verification token " + verificationId + " received");
1167                        break;
1168                    }
1169
1170                    final PackageVerificationResponse response = (PackageVerificationResponse) msg.obj;
1171
1172                    state.setVerifierResponse(response.callerUid, response.code);
1173
1174                    if (state.isVerificationComplete()) {
1175                        mPendingVerification.remove(verificationId);
1176
1177                        final InstallArgs args = state.getInstallArgs();
1178                        final Uri originUri = Uri.fromFile(args.origin.resolvedFile);
1179
1180                        int ret;
1181                        if (state.isInstallAllowed()) {
1182                            ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
1183                            broadcastPackageVerified(verificationId, originUri,
1184                                    response.code, state.getInstallArgs().getUser());
1185                            try {
1186                                ret = args.copyApk(mContainerService, true);
1187                            } catch (RemoteException e) {
1188                                Slog.e(TAG, "Could not contact the ContainerService");
1189                            }
1190                        } else {
1191                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
1192                        }
1193
1194                        processPendingInstall(args, ret);
1195
1196                        mHandler.sendEmptyMessage(MCS_UNBIND);
1197                    }
1198
1199                    break;
1200                }
1201            }
1202        }
1203    }
1204
1205    Bundle extrasForInstallResult(PackageInstalledInfo res) {
1206        Bundle extras = null;
1207        switch (res.returnCode) {
1208            case PackageManager.INSTALL_FAILED_DUPLICATE_PERMISSION: {
1209                extras = new Bundle();
1210                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PERMISSION,
1211                        res.origPermission);
1212                extras.putString(PackageManager.EXTRA_FAILURE_EXISTING_PACKAGE,
1213                        res.origPackage);
1214                break;
1215            }
1216        }
1217        return extras;
1218    }
1219
1220    void scheduleWriteSettingsLocked() {
1221        if (!mHandler.hasMessages(WRITE_SETTINGS)) {
1222            mHandler.sendEmptyMessageDelayed(WRITE_SETTINGS, WRITE_SETTINGS_DELAY);
1223        }
1224    }
1225
1226    void scheduleWritePackageRestrictionsLocked(int userId) {
1227        if (!sUserManager.exists(userId)) return;
1228        mDirtyUsers.add(userId);
1229        if (!mHandler.hasMessages(WRITE_PACKAGE_RESTRICTIONS)) {
1230            mHandler.sendEmptyMessageDelayed(WRITE_PACKAGE_RESTRICTIONS, WRITE_SETTINGS_DELAY);
1231        }
1232    }
1233
1234    public static final PackageManagerService main(Context context, Installer installer,
1235            boolean factoryTest, boolean onlyCore) {
1236        PackageManagerService m = new PackageManagerService(context, installer,
1237                factoryTest, onlyCore);
1238        ServiceManager.addService("package", m);
1239        return m;
1240    }
1241
1242    static String[] splitString(String str, char sep) {
1243        int count = 1;
1244        int i = 0;
1245        while ((i=str.indexOf(sep, i)) >= 0) {
1246            count++;
1247            i++;
1248        }
1249
1250        String[] res = new String[count];
1251        i=0;
1252        count = 0;
1253        int lastI=0;
1254        while ((i=str.indexOf(sep, i)) >= 0) {
1255            res[count] = str.substring(lastI, i);
1256            count++;
1257            i++;
1258            lastI = i;
1259        }
1260        res[count] = str.substring(lastI, str.length());
1261        return res;
1262    }
1263
1264    private static void getDefaultDisplayMetrics(Context context, DisplayMetrics metrics) {
1265        DisplayManager displayManager = (DisplayManager) context.getSystemService(
1266                Context.DISPLAY_SERVICE);
1267        displayManager.getDisplay(Display.DEFAULT_DISPLAY).getMetrics(metrics);
1268    }
1269
1270    public PackageManagerService(Context context, Installer installer,
1271            boolean factoryTest, boolean onlyCore) {
1272        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_START,
1273                SystemClock.uptimeMillis());
1274
1275        if (mSdkVersion <= 0) {
1276            Slog.w(TAG, "**** ro.build.version.sdk not set!");
1277        }
1278
1279        mContext = context;
1280        mFactoryTest = factoryTest;
1281        mOnlyCore = onlyCore;
1282        mLazyDexOpt = "eng".equals(SystemProperties.get("ro.build.type"));
1283        mMetrics = new DisplayMetrics();
1284        mSettings = new Settings(context);
1285        mSettings.addSharedUserLPw("android.uid.system", Process.SYSTEM_UID,
1286                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1287        mSettings.addSharedUserLPw("android.uid.phone", RADIO_UID,
1288                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1289        mSettings.addSharedUserLPw("android.uid.log", LOG_UID,
1290                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1291        mSettings.addSharedUserLPw("android.uid.nfc", NFC_UID,
1292                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1293        mSettings.addSharedUserLPw("android.uid.bluetooth", BLUETOOTH_UID,
1294                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1295        mSettings.addSharedUserLPw("android.uid.shell", SHELL_UID,
1296                ApplicationInfo.FLAG_SYSTEM|ApplicationInfo.FLAG_PRIVILEGED);
1297
1298        String separateProcesses = SystemProperties.get("debug.separate_processes");
1299        if (separateProcesses != null && separateProcesses.length() > 0) {
1300            if ("*".equals(separateProcesses)) {
1301                mDefParseFlags = PackageParser.PARSE_IGNORE_PROCESSES;
1302                mSeparateProcesses = null;
1303                Slog.w(TAG, "Running with debug.separate_processes: * (ALL)");
1304            } else {
1305                mDefParseFlags = 0;
1306                mSeparateProcesses = separateProcesses.split(",");
1307                Slog.w(TAG, "Running with debug.separate_processes: "
1308                        + separateProcesses);
1309            }
1310        } else {
1311            mDefParseFlags = 0;
1312            mSeparateProcesses = null;
1313        }
1314
1315        mInstaller = installer;
1316
1317        getDefaultDisplayMetrics(context, mMetrics);
1318
1319        SystemConfig systemConfig = SystemConfig.getInstance();
1320        mGlobalGids = systemConfig.getGlobalGids();
1321        mSystemPermissions = systemConfig.getSystemPermissions();
1322        mAvailableFeatures = systemConfig.getAvailableFeatures();
1323
1324        synchronized (mInstallLock) {
1325        // writer
1326        synchronized (mPackages) {
1327            mHandlerThread = new ServiceThread(TAG,
1328                    Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
1329            mHandlerThread.start();
1330            mHandler = new PackageHandler(mHandlerThread.getLooper());
1331            Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
1332
1333            File dataDir = Environment.getDataDirectory();
1334            mAppDataDir = new File(dataDir, "data");
1335            mAppInstallDir = new File(dataDir, "app");
1336            mAppLib32InstallDir = new File(dataDir, "app-lib");
1337            mAsecInternalPath = new File(dataDir, "app-asec").getPath();
1338            mUserAppDataDir = new File(dataDir, "user");
1339            mDrmAppPrivateInstallDir = new File(dataDir, "app-private");
1340
1341            sUserManager = new UserManagerService(context, this,
1342                    mInstallLock, mPackages);
1343
1344            // Propagate permission configuration in to package manager.
1345            ArrayMap<String, SystemConfig.PermissionEntry> permConfig
1346                    = systemConfig.getPermissions();
1347            for (int i=0; i<permConfig.size(); i++) {
1348                SystemConfig.PermissionEntry perm = permConfig.valueAt(i);
1349                BasePermission bp = mSettings.mPermissions.get(perm.name);
1350                if (bp == null) {
1351                    bp = new BasePermission(perm.name, "android", BasePermission.TYPE_BUILTIN);
1352                    mSettings.mPermissions.put(perm.name, bp);
1353                }
1354                if (perm.gids != null) {
1355                    bp.gids = appendInts(bp.gids, perm.gids);
1356                }
1357            }
1358
1359            ArrayMap<String, String> libConfig = systemConfig.getSharedLibraries();
1360            for (int i=0; i<libConfig.size(); i++) {
1361                mSharedLibraries.put(libConfig.keyAt(i),
1362                        new SharedLibraryEntry(libConfig.valueAt(i), null));
1363            }
1364
1365            mFoundPolicyFile = SELinuxMMAC.readInstallPolicy();
1366
1367            mRestoredSettings = mSettings.readLPw(this, sUserManager.getUsers(false),
1368                    mSdkVersion, mOnlyCore);
1369
1370            String customResolverActivity = Resources.getSystem().getString(
1371                    R.string.config_customResolverActivity);
1372            if (TextUtils.isEmpty(customResolverActivity)) {
1373                customResolverActivity = null;
1374            } else {
1375                mCustomResolverComponentName = ComponentName.unflattenFromString(
1376                        customResolverActivity);
1377            }
1378
1379            long startTime = SystemClock.uptimeMillis();
1380
1381            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SYSTEM_SCAN_START,
1382                    startTime);
1383
1384            // Set flag to monitor and not change apk file paths when
1385            // scanning install directories.
1386            final int scanFlags = SCAN_NO_PATHS | SCAN_DEFER_DEX | SCAN_BOOTING;
1387
1388            final HashSet<String> alreadyDexOpted = new HashSet<String>();
1389
1390            /**
1391             * Add everything in the in the boot class path to the
1392             * list of process files because dexopt will have been run
1393             * if necessary during zygote startup.
1394             */
1395            final String bootClassPath = System.getenv("BOOTCLASSPATH");
1396            final String systemServerClassPath = System.getenv("SYSTEMSERVERCLASSPATH");
1397
1398            if (bootClassPath != null) {
1399                String[] bootClassPathElements = splitString(bootClassPath, ':');
1400                for (String element : bootClassPathElements) {
1401                    alreadyDexOpted.add(element);
1402                }
1403            } else {
1404                Slog.w(TAG, "No BOOTCLASSPATH found!");
1405            }
1406
1407            if (systemServerClassPath != null) {
1408                String[] systemServerClassPathElements = splitString(systemServerClassPath, ':');
1409                for (String element : systemServerClassPathElements) {
1410                    alreadyDexOpted.add(element);
1411                }
1412            } else {
1413                Slog.w(TAG, "No SYSTEMSERVERCLASSPATH found!");
1414            }
1415
1416            boolean didDexOptLibraryOrTool = false;
1417
1418            final List<String> allInstructionSets = getAllInstructionSets();
1419            final String[] dexCodeInstructionSets =
1420                getDexCodeInstructionSets(allInstructionSets.toArray(new String[allInstructionSets.size()]));
1421
1422            /**
1423             * Ensure all external libraries have had dexopt run on them.
1424             */
1425            if (mSharedLibraries.size() > 0) {
1426                // NOTE: For now, we're compiling these system "shared libraries"
1427                // (and framework jars) into all available architectures. It's possible
1428                // to compile them only when we come across an app that uses them (there's
1429                // already logic for that in scanPackageLI) but that adds some complexity.
1430                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1431                    for (SharedLibraryEntry libEntry : mSharedLibraries.values()) {
1432                        final String lib = libEntry.path;
1433                        if (lib == null) {
1434                            continue;
1435                        }
1436
1437                        try {
1438                            byte dexoptRequired = DexFile.isDexOptNeededInternal(lib, null,
1439                                                                                 dexCodeInstructionSet,
1440                                                                                 false);
1441                            if (dexoptRequired != DexFile.UP_TO_DATE) {
1442                                alreadyDexOpted.add(lib);
1443
1444                                // The list of "shared libraries" we have at this point is
1445                                if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1446                                    mInstaller.dexopt(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1447                                } else {
1448                                    mInstaller.patchoat(lib, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1449                                }
1450                                didDexOptLibraryOrTool = true;
1451                            }
1452                        } catch (FileNotFoundException e) {
1453                            Slog.w(TAG, "Library not found: " + lib);
1454                        } catch (IOException e) {
1455                            Slog.w(TAG, "Cannot dexopt " + lib + "; is it an APK or JAR? "
1456                                    + e.getMessage());
1457                        }
1458                    }
1459                }
1460            }
1461
1462            File frameworkDir = new File(Environment.getRootDirectory(), "framework");
1463
1464            // Gross hack for now: we know this file doesn't contain any
1465            // code, so don't dexopt it to avoid the resulting log spew.
1466            alreadyDexOpted.add(frameworkDir.getPath() + "/framework-res.apk");
1467
1468            // Gross hack for now: we know this file is only part of
1469            // the boot class path for art, so don't dexopt it to
1470            // avoid the resulting log spew.
1471            alreadyDexOpted.add(frameworkDir.getPath() + "/core-libart.jar");
1472
1473            /**
1474             * And there are a number of commands implemented in Java, which
1475             * we currently need to do the dexopt on so that they can be
1476             * run from a non-root shell.
1477             */
1478            String[] frameworkFiles = frameworkDir.list();
1479            if (frameworkFiles != null) {
1480                // TODO: We could compile these only for the most preferred ABI. We should
1481                // first double check that the dex files for these commands are not referenced
1482                // by other system apps.
1483                for (String dexCodeInstructionSet : dexCodeInstructionSets) {
1484                    for (int i=0; i<frameworkFiles.length; i++) {
1485                        File libPath = new File(frameworkDir, frameworkFiles[i]);
1486                        String path = libPath.getPath();
1487                        // Skip the file if we already did it.
1488                        if (alreadyDexOpted.contains(path)) {
1489                            continue;
1490                        }
1491                        // Skip the file if it is not a type we want to dexopt.
1492                        if (!path.endsWith(".apk") && !path.endsWith(".jar")) {
1493                            continue;
1494                        }
1495                        try {
1496                            byte dexoptRequired = DexFile.isDexOptNeededInternal(path, null,
1497                                                                                 dexCodeInstructionSet,
1498                                                                                 false);
1499                            if (dexoptRequired == DexFile.DEXOPT_NEEDED) {
1500                                mInstaller.dexopt(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1501                                didDexOptLibraryOrTool = true;
1502                            } else if (dexoptRequired == DexFile.PATCHOAT_NEEDED) {
1503                                mInstaller.patchoat(path, Process.SYSTEM_UID, true, dexCodeInstructionSet);
1504                                didDexOptLibraryOrTool = true;
1505                            }
1506                        } catch (FileNotFoundException e) {
1507                            Slog.w(TAG, "Jar not found: " + path);
1508                        } catch (IOException e) {
1509                            Slog.w(TAG, "Exception reading jar: " + path, e);
1510                        }
1511                    }
1512                }
1513            }
1514
1515            // Collect vendor overlay packages.
1516            // (Do this before scanning any apps.)
1517            // For security and version matching reason, only consider
1518            // overlay packages if they reside in VENDOR_OVERLAY_DIR.
1519            File vendorOverlayDir = new File(VENDOR_OVERLAY_DIR);
1520            scanDirLI(vendorOverlayDir, PackageParser.PARSE_IS_SYSTEM
1521                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags | SCAN_TRUSTED_OVERLAY, 0);
1522
1523            // Find base frameworks (resource packages without code).
1524            scanDirLI(frameworkDir, PackageParser.PARSE_IS_SYSTEM
1525                    | PackageParser.PARSE_IS_SYSTEM_DIR
1526                    | PackageParser.PARSE_IS_PRIVILEGED,
1527                    scanFlags | SCAN_NO_DEX, 0);
1528
1529            // Collected privileged system packages.
1530            final File privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app");
1531            scanDirLI(privilegedAppDir, PackageParser.PARSE_IS_SYSTEM
1532                    | PackageParser.PARSE_IS_SYSTEM_DIR
1533                    | PackageParser.PARSE_IS_PRIVILEGED, scanFlags, 0);
1534
1535            // Collect ordinary system packages.
1536            final File systemAppDir = new File(Environment.getRootDirectory(), "app");
1537            scanDirLI(systemAppDir, PackageParser.PARSE_IS_SYSTEM
1538                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1539
1540            // Collect all vendor packages.
1541            File vendorAppDir = new File("/vendor/app");
1542            try {
1543                vendorAppDir = vendorAppDir.getCanonicalFile();
1544            } catch (IOException e) {
1545                // failed to look up canonical path, continue with original one
1546            }
1547            scanDirLI(vendorAppDir, PackageParser.PARSE_IS_SYSTEM
1548                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1549
1550            // Collect all OEM packages.
1551            final File oemAppDir = new File(Environment.getOemDirectory(), "app");
1552            scanDirLI(oemAppDir, PackageParser.PARSE_IS_SYSTEM
1553                    | PackageParser.PARSE_IS_SYSTEM_DIR, scanFlags, 0);
1554
1555            if (DEBUG_UPGRADE) Log.v(TAG, "Running installd update commands");
1556            mInstaller.moveFiles();
1557
1558            // Prune any system packages that no longer exist.
1559            final List<String> possiblyDeletedUpdatedSystemApps = new ArrayList<String>();
1560            final ArrayMap<String, File> expectingBetter = new ArrayMap<>();
1561            if (!mOnlyCore) {
1562                Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
1563                while (psit.hasNext()) {
1564                    PackageSetting ps = psit.next();
1565
1566                    /*
1567                     * If this is not a system app, it can't be a
1568                     * disable system app.
1569                     */
1570                    if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {
1571                        continue;
1572                    }
1573
1574                    /*
1575                     * If the package is scanned, it's not erased.
1576                     */
1577                    final PackageParser.Package scannedPkg = mPackages.get(ps.name);
1578                    if (scannedPkg != null) {
1579                        /*
1580                         * If the system app is both scanned and in the
1581                         * disabled packages list, then it must have been
1582                         * added via OTA. Remove it from the currently
1583                         * scanned package so the previously user-installed
1584                         * application can be scanned.
1585                         */
1586                        if (mSettings.isDisabledSystemPackageLPr(ps.name)) {
1587                            logCriticalInfo(Log.WARN, "Expecting better updated system app for "
1588                                    + ps.name + "; removing system app.  Last known codePath="
1589                                    + ps.codePathString + ", installStatus=" + ps.installStatus
1590                                    + ", versionCode=" + ps.versionCode + "; scanned versionCode="
1591                                    + scannedPkg.mVersionCode);
1592                            removePackageLI(ps, true);
1593                            expectingBetter.put(ps.name, ps.codePath);
1594                        }
1595
1596                        continue;
1597                    }
1598
1599                    if (!mSettings.isDisabledSystemPackageLPr(ps.name)) {
1600                        psit.remove();
1601                        logCriticalInfo(Log.WARN, "System package " + ps.name
1602                                + " no longer exists; wiping its data");
1603                        removeDataDirsLI(ps.name);
1604                    } else {
1605                        final PackageSetting disabledPs = mSettings.getDisabledSystemPkgLPr(ps.name);
1606                        if (disabledPs.codePath == null || !disabledPs.codePath.exists()) {
1607                            possiblyDeletedUpdatedSystemApps.add(ps.name);
1608                        }
1609                    }
1610                }
1611            }
1612
1613            //look for any incomplete package installations
1614            ArrayList<PackageSetting> deletePkgsList = mSettings.getListOfIncompleteInstallPackagesLPr();
1615            //clean up list
1616            for(int i = 0; i < deletePkgsList.size(); i++) {
1617                //clean up here
1618                cleanupInstallFailedPackage(deletePkgsList.get(i));
1619            }
1620            //delete tmp files
1621            deleteTempPackageFiles();
1622
1623            // Remove any shared userIDs that have no associated packages
1624            mSettings.pruneSharedUsersLPw();
1625
1626            if (!mOnlyCore) {
1627                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_DATA_SCAN_START,
1628                        SystemClock.uptimeMillis());
1629                scanDirLI(mAppInstallDir, 0, scanFlags, 0);
1630
1631                scanDirLI(mDrmAppPrivateInstallDir, PackageParser.PARSE_FORWARD_LOCK,
1632                        scanFlags, 0);
1633
1634                /**
1635                 * Remove disable package settings for any updated system
1636                 * apps that were removed via an OTA. If they're not a
1637                 * previously-updated app, remove them completely.
1638                 * Otherwise, just revoke their system-level permissions.
1639                 */
1640                for (String deletedAppName : possiblyDeletedUpdatedSystemApps) {
1641                    PackageParser.Package deletedPkg = mPackages.get(deletedAppName);
1642                    mSettings.removeDisabledSystemPackageLPw(deletedAppName);
1643
1644                    String msg;
1645                    if (deletedPkg == null) {
1646                        msg = "Updated system package " + deletedAppName
1647                                + " no longer exists; wiping its data";
1648                        removeDataDirsLI(deletedAppName);
1649                    } else {
1650                        msg = "Updated system app + " + deletedAppName
1651                                + " no longer present; removing system privileges for "
1652                                + deletedAppName;
1653
1654                        deletedPkg.applicationInfo.flags &= ~ApplicationInfo.FLAG_SYSTEM;
1655
1656                        PackageSetting deletedPs = mSettings.mPackages.get(deletedAppName);
1657                        deletedPs.pkgFlags &= ~ApplicationInfo.FLAG_SYSTEM;
1658                    }
1659                    logCriticalInfo(Log.WARN, msg);
1660                }
1661
1662                /**
1663                 * Make sure all system apps that we expected to appear on
1664                 * the userdata partition actually showed up. If they never
1665                 * appeared, crawl back and revive the system version.
1666                 */
1667                for (int i = 0; i < expectingBetter.size(); i++) {
1668                    final String packageName = expectingBetter.keyAt(i);
1669                    if (!mPackages.containsKey(packageName)) {
1670                        final File scanFile = expectingBetter.valueAt(i);
1671
1672                        logCriticalInfo(Log.WARN, "Expected better " + packageName
1673                                + " but never showed up; reverting to system");
1674
1675                        final int reparseFlags;
1676                        if (FileUtils.contains(privilegedAppDir, scanFile)) {
1677                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1678                                    | PackageParser.PARSE_IS_SYSTEM_DIR
1679                                    | PackageParser.PARSE_IS_PRIVILEGED;
1680                        } else if (FileUtils.contains(systemAppDir, scanFile)) {
1681                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1682                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1683                        } else if (FileUtils.contains(vendorAppDir, scanFile)) {
1684                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1685                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1686                        } else if (FileUtils.contains(oemAppDir, scanFile)) {
1687                            reparseFlags = PackageParser.PARSE_IS_SYSTEM
1688                                    | PackageParser.PARSE_IS_SYSTEM_DIR;
1689                        } else {
1690                            Slog.e(TAG, "Ignoring unexpected fallback path " + scanFile);
1691                            continue;
1692                        }
1693
1694                        mSettings.enableSystemPackageLPw(packageName);
1695
1696                        try {
1697                            scanPackageLI(scanFile, reparseFlags, scanFlags, 0, null);
1698                        } catch (PackageManagerException e) {
1699                            Slog.e(TAG, "Failed to parse original system package: "
1700                                    + e.getMessage());
1701                        }
1702                    }
1703                }
1704            }
1705
1706            // Now that we know all of the shared libraries, update all clients to have
1707            // the correct library paths.
1708            updateAllSharedLibrariesLPw();
1709
1710            for (SharedUserSetting setting : mSettings.getAllSharedUsersLPw()) {
1711                // NOTE: We ignore potential failures here during a system scan (like
1712                // the rest of the commands above) because there's precious little we
1713                // can do about it. A settings error is reported, though.
1714                adjustCpuAbisForSharedUserLPw(setting.packages, null /* scanned package */,
1715                        false /* force dexopt */, false /* defer dexopt */);
1716            }
1717
1718            // Now that we know all the packages we are keeping,
1719            // read and update their last usage times.
1720            mPackageUsage.readLP();
1721
1722            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_SCAN_END,
1723                    SystemClock.uptimeMillis());
1724            Slog.i(TAG, "Time to scan packages: "
1725                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
1726                    + " seconds");
1727
1728            // If the platform SDK has changed since the last time we booted,
1729            // we need to re-grant app permission to catch any new ones that
1730            // appear.  This is really a hack, and means that apps can in some
1731            // cases get permissions that the user didn't initially explicitly
1732            // allow...  it would be nice to have some better way to handle
1733            // this situation.
1734            final boolean regrantPermissions = mSettings.mInternalSdkPlatform
1735                    != mSdkVersion;
1736            if (regrantPermissions) Slog.i(TAG, "Platform changed from "
1737                    + mSettings.mInternalSdkPlatform + " to " + mSdkVersion
1738                    + "; regranting permissions for internal storage");
1739            mSettings.mInternalSdkPlatform = mSdkVersion;
1740
1741            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
1742                    | (regrantPermissions
1743                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
1744                            : 0));
1745
1746            // If this is the first boot, and it is a normal boot, then
1747            // we need to initialize the default preferred apps.
1748            if (!mRestoredSettings && !onlyCore) {
1749                mSettings.readDefaultPreferredAppsLPw(this, 0);
1750            }
1751
1752            // If this is first boot after an OTA, and a normal boot, then
1753            // we need to clear code cache directories.
1754            mIsUpgrade = !Build.FINGERPRINT.equals(mSettings.mFingerprint);
1755            if (mIsUpgrade && !onlyCore) {
1756                Slog.i(TAG, "Build fingerprint changed; clearing code caches");
1757                for (String pkgName : mSettings.mPackages.keySet()) {
1758                    deleteCodeCacheDirsLI(pkgName);
1759                }
1760                mSettings.mFingerprint = Build.FINGERPRINT;
1761            }
1762
1763            // All the changes are done during package scanning.
1764            mSettings.updateInternalDatabaseVersion();
1765
1766            // can downgrade to reader
1767            mSettings.writeLPr();
1768
1769            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
1770                    SystemClock.uptimeMillis());
1771
1772
1773            mRequiredVerifierPackage = getRequiredVerifierLPr();
1774        } // synchronized (mPackages)
1775        } // synchronized (mInstallLock)
1776
1777        mInstallerService = new PackageInstallerService(context, this, mAppInstallDir);
1778
1779        // Now after opening every single application zip, make sure they
1780        // are all flushed.  Not really needed, but keeps things nice and
1781        // tidy.
1782        Runtime.getRuntime().gc();
1783    }
1784
1785    @Override
1786    public boolean isFirstBoot() {
1787        return !mRestoredSettings;
1788    }
1789
1790    @Override
1791    public boolean isOnlyCoreApps() {
1792        return mOnlyCore;
1793    }
1794
1795    @Override
1796    public boolean isUpgrade() {
1797        return mIsUpgrade;
1798    }
1799
1800    private String getRequiredVerifierLPr() {
1801        final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
1802        final List<ResolveInfo> receivers = queryIntentReceivers(verification, PACKAGE_MIME_TYPE,
1803                PackageManager.GET_DISABLED_COMPONENTS, 0 /* TODO: Which userId? */);
1804
1805        String requiredVerifier = null;
1806
1807        final int N = receivers.size();
1808        for (int i = 0; i < N; i++) {
1809            final ResolveInfo info = receivers.get(i);
1810
1811            if (info.activityInfo == null) {
1812                continue;
1813            }
1814
1815            final String packageName = info.activityInfo.packageName;
1816
1817            final PackageSetting ps = mSettings.mPackages.get(packageName);
1818            if (ps == null) {
1819                continue;
1820            }
1821
1822            final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1823            if (!gp.grantedPermissions
1824                    .contains(android.Manifest.permission.PACKAGE_VERIFICATION_AGENT)) {
1825                continue;
1826            }
1827
1828            if (requiredVerifier != null) {
1829                throw new RuntimeException("There can be only one required verifier");
1830            }
1831
1832            requiredVerifier = packageName;
1833        }
1834
1835        return requiredVerifier;
1836    }
1837
1838    @Override
1839    public boolean onTransact(int code, Parcel data, Parcel reply, int flags)
1840            throws RemoteException {
1841        try {
1842            return super.onTransact(code, data, reply, flags);
1843        } catch (RuntimeException e) {
1844            if (!(e instanceof SecurityException) && !(e instanceof IllegalArgumentException)) {
1845                Slog.wtf(TAG, "Package Manager Crash", e);
1846            }
1847            throw e;
1848        }
1849    }
1850
1851    void cleanupInstallFailedPackage(PackageSetting ps) {
1852        logCriticalInfo(Log.WARN, "Cleaning up incompletely installed app: " + ps.name);
1853
1854        removeDataDirsLI(ps.name);
1855        if (ps.codePath != null) {
1856            if (ps.codePath.isDirectory()) {
1857                FileUtils.deleteContents(ps.codePath);
1858            }
1859            ps.codePath.delete();
1860        }
1861        if (ps.resourcePath != null && !ps.resourcePath.equals(ps.codePath)) {
1862            if (ps.resourcePath.isDirectory()) {
1863                FileUtils.deleteContents(ps.resourcePath);
1864            }
1865            ps.resourcePath.delete();
1866        }
1867        mSettings.removePackageLPw(ps.name);
1868    }
1869
1870    static int[] appendInts(int[] cur, int[] add) {
1871        if (add == null) return cur;
1872        if (cur == null) return add;
1873        final int N = add.length;
1874        for (int i=0; i<N; i++) {
1875            cur = appendInt(cur, add[i]);
1876        }
1877        return cur;
1878    }
1879
1880    static int[] removeInts(int[] cur, int[] rem) {
1881        if (rem == null) return cur;
1882        if (cur == null) return cur;
1883        final int N = rem.length;
1884        for (int i=0; i<N; i++) {
1885            cur = removeInt(cur, rem[i]);
1886        }
1887        return cur;
1888    }
1889
1890    PackageInfo generatePackageInfo(PackageParser.Package p, int flags, int userId) {
1891        if (!sUserManager.exists(userId)) return null;
1892        final PackageSetting ps = (PackageSetting) p.mExtras;
1893        if (ps == null) {
1894            return null;
1895        }
1896        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
1897        final PackageUserState state = ps.readUserState(userId);
1898        return PackageParser.generatePackageInfo(p, gp.gids, flags,
1899                ps.firstInstallTime, ps.lastUpdateTime, gp.grantedPermissions,
1900                state, userId);
1901    }
1902
1903    @Override
1904    public boolean isPackageAvailable(String packageName, int userId) {
1905        if (!sUserManager.exists(userId)) return false;
1906        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "is package available");
1907        synchronized (mPackages) {
1908            PackageParser.Package p = mPackages.get(packageName);
1909            if (p != null) {
1910                final PackageSetting ps = (PackageSetting) p.mExtras;
1911                if (ps != null) {
1912                    final PackageUserState state = ps.readUserState(userId);
1913                    if (state != null) {
1914                        return PackageParser.isAvailable(state);
1915                    }
1916                }
1917            }
1918        }
1919        return false;
1920    }
1921
1922    @Override
1923    public PackageInfo getPackageInfo(String packageName, int flags, int userId) {
1924        if (!sUserManager.exists(userId)) return null;
1925        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package info");
1926        // reader
1927        synchronized (mPackages) {
1928            PackageParser.Package p = mPackages.get(packageName);
1929            if (DEBUG_PACKAGE_INFO)
1930                Log.v(TAG, "getPackageInfo " + packageName + ": " + p);
1931            if (p != null) {
1932                return generatePackageInfo(p, flags, userId);
1933            }
1934            if((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
1935                return generatePackageInfoFromSettingsLPw(packageName, flags, userId);
1936            }
1937        }
1938        return null;
1939    }
1940
1941    @Override
1942    public String[] currentToCanonicalPackageNames(String[] names) {
1943        String[] out = new String[names.length];
1944        // reader
1945        synchronized (mPackages) {
1946            for (int i=names.length-1; i>=0; i--) {
1947                PackageSetting ps = mSettings.mPackages.get(names[i]);
1948                out[i] = ps != null && ps.realName != null ? ps.realName : names[i];
1949            }
1950        }
1951        return out;
1952    }
1953
1954    @Override
1955    public String[] canonicalToCurrentPackageNames(String[] names) {
1956        String[] out = new String[names.length];
1957        // reader
1958        synchronized (mPackages) {
1959            for (int i=names.length-1; i>=0; i--) {
1960                String cur = mSettings.mRenamedPackages.get(names[i]);
1961                out[i] = cur != null ? cur : names[i];
1962            }
1963        }
1964        return out;
1965    }
1966
1967    @Override
1968    public int getPackageUid(String packageName, int userId) {
1969        if (!sUserManager.exists(userId)) return -1;
1970        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get package uid");
1971        // reader
1972        synchronized (mPackages) {
1973            PackageParser.Package p = mPackages.get(packageName);
1974            if(p != null) {
1975                return UserHandle.getUid(userId, p.applicationInfo.uid);
1976            }
1977            PackageSetting ps = mSettings.mPackages.get(packageName);
1978            if((ps == null) || (ps.pkg == null) || (ps.pkg.applicationInfo == null)) {
1979                return -1;
1980            }
1981            p = ps.pkg;
1982            return p != null ? UserHandle.getUid(userId, p.applicationInfo.uid) : -1;
1983        }
1984    }
1985
1986    @Override
1987    public int[] getPackageGids(String packageName) {
1988        // reader
1989        synchronized (mPackages) {
1990            PackageParser.Package p = mPackages.get(packageName);
1991            if (DEBUG_PACKAGE_INFO)
1992                Log.v(TAG, "getPackageGids" + packageName + ": " + p);
1993            if (p != null) {
1994                final PackageSetting ps = (PackageSetting)p.mExtras;
1995                return ps.getGids();
1996            }
1997        }
1998        // stupid thing to indicate an error.
1999        return new int[0];
2000    }
2001
2002    static final PermissionInfo generatePermissionInfo(
2003            BasePermission bp, int flags) {
2004        if (bp.perm != null) {
2005            return PackageParser.generatePermissionInfo(bp.perm, flags);
2006        }
2007        PermissionInfo pi = new PermissionInfo();
2008        pi.name = bp.name;
2009        pi.packageName = bp.sourcePackage;
2010        pi.nonLocalizedLabel = bp.name;
2011        pi.protectionLevel = bp.protectionLevel;
2012        return pi;
2013    }
2014
2015    @Override
2016    public PermissionInfo getPermissionInfo(String name, int flags) {
2017        // reader
2018        synchronized (mPackages) {
2019            final BasePermission p = mSettings.mPermissions.get(name);
2020            if (p != null) {
2021                return generatePermissionInfo(p, flags);
2022            }
2023            return null;
2024        }
2025    }
2026
2027    @Override
2028    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
2029        // reader
2030        synchronized (mPackages) {
2031            ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
2032            for (BasePermission p : mSettings.mPermissions.values()) {
2033                if (group == null) {
2034                    if (p.perm == null || p.perm.info.group == null) {
2035                        out.add(generatePermissionInfo(p, flags));
2036                    }
2037                } else {
2038                    if (p.perm != null && group.equals(p.perm.info.group)) {
2039                        out.add(PackageParser.generatePermissionInfo(p.perm, flags));
2040                    }
2041                }
2042            }
2043
2044            if (out.size() > 0) {
2045                return out;
2046            }
2047            return mPermissionGroups.containsKey(group) ? out : null;
2048        }
2049    }
2050
2051    @Override
2052    public PermissionGroupInfo getPermissionGroupInfo(String name, int flags) {
2053        // reader
2054        synchronized (mPackages) {
2055            return PackageParser.generatePermissionGroupInfo(
2056                    mPermissionGroups.get(name), flags);
2057        }
2058    }
2059
2060    @Override
2061    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
2062        // reader
2063        synchronized (mPackages) {
2064            final int N = mPermissionGroups.size();
2065            ArrayList<PermissionGroupInfo> out
2066                    = new ArrayList<PermissionGroupInfo>(N);
2067            for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
2068                out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
2069            }
2070            return out;
2071        }
2072    }
2073
2074    private ApplicationInfo generateApplicationInfoFromSettingsLPw(String packageName, int flags,
2075            int userId) {
2076        if (!sUserManager.exists(userId)) return null;
2077        PackageSetting ps = mSettings.mPackages.get(packageName);
2078        if (ps != null) {
2079            if (ps.pkg == null) {
2080                PackageInfo pInfo = generatePackageInfoFromSettingsLPw(packageName,
2081                        flags, userId);
2082                if (pInfo != null) {
2083                    return pInfo.applicationInfo;
2084                }
2085                return null;
2086            }
2087            return PackageParser.generateApplicationInfo(ps.pkg, flags,
2088                    ps.readUserState(userId), userId);
2089        }
2090        return null;
2091    }
2092
2093    private PackageInfo generatePackageInfoFromSettingsLPw(String packageName, int flags,
2094            int userId) {
2095        if (!sUserManager.exists(userId)) return null;
2096        PackageSetting ps = mSettings.mPackages.get(packageName);
2097        if (ps != null) {
2098            PackageParser.Package pkg = ps.pkg;
2099            if (pkg == null) {
2100                if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) == 0) {
2101                    return null;
2102                }
2103                // Only data remains, so we aren't worried about code paths
2104                pkg = new PackageParser.Package(packageName);
2105                pkg.applicationInfo.packageName = packageName;
2106                pkg.applicationInfo.flags = ps.pkgFlags | ApplicationInfo.FLAG_IS_DATA_ONLY;
2107                pkg.applicationInfo.dataDir =
2108                        getDataPathForPackage(packageName, 0).getPath();
2109                pkg.applicationInfo.primaryCpuAbi = ps.primaryCpuAbiString;
2110                pkg.applicationInfo.secondaryCpuAbi = ps.secondaryCpuAbiString;
2111            }
2112            return generatePackageInfo(pkg, flags, userId);
2113        }
2114        return null;
2115    }
2116
2117    @Override
2118    public ApplicationInfo getApplicationInfo(String packageName, int flags, int userId) {
2119        if (!sUserManager.exists(userId)) return null;
2120        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get application info");
2121        // writer
2122        synchronized (mPackages) {
2123            PackageParser.Package p = mPackages.get(packageName);
2124            if (DEBUG_PACKAGE_INFO) Log.v(
2125                    TAG, "getApplicationInfo " + packageName
2126                    + ": " + p);
2127            if (p != null) {
2128                PackageSetting ps = mSettings.mPackages.get(packageName);
2129                if (ps == null) return null;
2130                // Note: isEnabledLP() does not apply here - always return info
2131                return PackageParser.generateApplicationInfo(
2132                        p, flags, ps.readUserState(userId), userId);
2133            }
2134            if ("android".equals(packageName)||"system".equals(packageName)) {
2135                return mAndroidApplication;
2136            }
2137            if ((flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0) {
2138                return generateApplicationInfoFromSettingsLPw(packageName, flags, userId);
2139            }
2140        }
2141        return null;
2142    }
2143
2144
2145    @Override
2146    public void freeStorageAndNotify(final long freeStorageSize, final IPackageDataObserver observer) {
2147        mContext.enforceCallingOrSelfPermission(
2148                android.Manifest.permission.CLEAR_APP_CACHE, null);
2149        // Queue up an async operation since clearing cache may take a little while.
2150        mHandler.post(new Runnable() {
2151            public void run() {
2152                mHandler.removeCallbacks(this);
2153                int retCode = -1;
2154                synchronized (mInstallLock) {
2155                    retCode = mInstaller.freeCache(freeStorageSize);
2156                    if (retCode < 0) {
2157                        Slog.w(TAG, "Couldn't clear application caches");
2158                    }
2159                }
2160                if (observer != null) {
2161                    try {
2162                        observer.onRemoveCompleted(null, (retCode >= 0));
2163                    } catch (RemoteException e) {
2164                        Slog.w(TAG, "RemoveException when invoking call back");
2165                    }
2166                }
2167            }
2168        });
2169    }
2170
2171    @Override
2172    public void freeStorage(final long freeStorageSize, final IntentSender pi) {
2173        mContext.enforceCallingOrSelfPermission(
2174                android.Manifest.permission.CLEAR_APP_CACHE, null);
2175        // Queue up an async operation since clearing cache may take a little while.
2176        mHandler.post(new Runnable() {
2177            public void run() {
2178                mHandler.removeCallbacks(this);
2179                int retCode = -1;
2180                synchronized (mInstallLock) {
2181                    retCode = mInstaller.freeCache(freeStorageSize);
2182                    if (retCode < 0) {
2183                        Slog.w(TAG, "Couldn't clear application caches");
2184                    }
2185                }
2186                if(pi != null) {
2187                    try {
2188                        // Callback via pending intent
2189                        int code = (retCode >= 0) ? 1 : 0;
2190                        pi.sendIntent(null, code, null,
2191                                null, null);
2192                    } catch (SendIntentException e1) {
2193                        Slog.i(TAG, "Failed to send pending intent");
2194                    }
2195                }
2196            }
2197        });
2198    }
2199
2200    void freeStorage(long freeStorageSize) throws IOException {
2201        synchronized (mInstallLock) {
2202            if (mInstaller.freeCache(freeStorageSize) < 0) {
2203                throw new IOException("Failed to free enough space");
2204            }
2205        }
2206    }
2207
2208    @Override
2209    public ActivityInfo getActivityInfo(ComponentName component, int flags, int userId) {
2210        if (!sUserManager.exists(userId)) return null;
2211        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get activity info");
2212        synchronized (mPackages) {
2213            PackageParser.Activity a = mActivities.mActivities.get(component);
2214
2215            if (DEBUG_PACKAGE_INFO) Log.v(TAG, "getActivityInfo " + component + ": " + a);
2216            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2217                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2218                if (ps == null) return null;
2219                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2220                        userId);
2221            }
2222            if (mResolveComponentName.equals(component)) {
2223                return PackageParser.generateActivityInfo(mResolveActivity, flags,
2224                        new PackageUserState(), userId);
2225            }
2226        }
2227        return null;
2228    }
2229
2230    @Override
2231    public boolean activitySupportsIntent(ComponentName component, Intent intent,
2232            String resolvedType) {
2233        synchronized (mPackages) {
2234            PackageParser.Activity a = mActivities.mActivities.get(component);
2235            if (a == null) {
2236                return false;
2237            }
2238            for (int i=0; i<a.intents.size(); i++) {
2239                if (a.intents.get(i).match(intent.getAction(), resolvedType, intent.getScheme(),
2240                        intent.getData(), intent.getCategories(), TAG) >= 0) {
2241                    return true;
2242                }
2243            }
2244            return false;
2245        }
2246    }
2247
2248    @Override
2249    public ActivityInfo getReceiverInfo(ComponentName component, int flags, int userId) {
2250        if (!sUserManager.exists(userId)) return null;
2251        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get receiver info");
2252        synchronized (mPackages) {
2253            PackageParser.Activity a = mReceivers.mActivities.get(component);
2254            if (DEBUG_PACKAGE_INFO) Log.v(
2255                TAG, "getReceiverInfo " + component + ": " + a);
2256            if (a != null && mSettings.isEnabledLPr(a.info, flags, userId)) {
2257                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2258                if (ps == null) return null;
2259                return PackageParser.generateActivityInfo(a, flags, ps.readUserState(userId),
2260                        userId);
2261            }
2262        }
2263        return null;
2264    }
2265
2266    @Override
2267    public ServiceInfo getServiceInfo(ComponentName component, int flags, int userId) {
2268        if (!sUserManager.exists(userId)) return null;
2269        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get service info");
2270        synchronized (mPackages) {
2271            PackageParser.Service s = mServices.mServices.get(component);
2272            if (DEBUG_PACKAGE_INFO) Log.v(
2273                TAG, "getServiceInfo " + component + ": " + s);
2274            if (s != null && mSettings.isEnabledLPr(s.info, flags, userId)) {
2275                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2276                if (ps == null) return null;
2277                return PackageParser.generateServiceInfo(s, flags, ps.readUserState(userId),
2278                        userId);
2279            }
2280        }
2281        return null;
2282    }
2283
2284    @Override
2285    public ProviderInfo getProviderInfo(ComponentName component, int flags, int userId) {
2286        if (!sUserManager.exists(userId)) return null;
2287        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "get provider info");
2288        synchronized (mPackages) {
2289            PackageParser.Provider p = mProviders.mProviders.get(component);
2290            if (DEBUG_PACKAGE_INFO) Log.v(
2291                TAG, "getProviderInfo " + component + ": " + p);
2292            if (p != null && mSettings.isEnabledLPr(p.info, flags, userId)) {
2293                PackageSetting ps = mSettings.mPackages.get(component.getPackageName());
2294                if (ps == null) return null;
2295                return PackageParser.generateProviderInfo(p, flags, ps.readUserState(userId),
2296                        userId);
2297            }
2298        }
2299        return null;
2300    }
2301
2302    @Override
2303    public String[] getSystemSharedLibraryNames() {
2304        Set<String> libSet;
2305        synchronized (mPackages) {
2306            libSet = mSharedLibraries.keySet();
2307            int size = libSet.size();
2308            if (size > 0) {
2309                String[] libs = new String[size];
2310                libSet.toArray(libs);
2311                return libs;
2312            }
2313        }
2314        return null;
2315    }
2316
2317    @Override
2318    public FeatureInfo[] getSystemAvailableFeatures() {
2319        Collection<FeatureInfo> featSet;
2320        synchronized (mPackages) {
2321            featSet = mAvailableFeatures.values();
2322            int size = featSet.size();
2323            if (size > 0) {
2324                FeatureInfo[] features = new FeatureInfo[size+1];
2325                featSet.toArray(features);
2326                FeatureInfo fi = new FeatureInfo();
2327                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
2328                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
2329                features[size] = fi;
2330                return features;
2331            }
2332        }
2333        return null;
2334    }
2335
2336    @Override
2337    public boolean hasSystemFeature(String name) {
2338        synchronized (mPackages) {
2339            return mAvailableFeatures.containsKey(name);
2340        }
2341    }
2342
2343    private void checkValidCaller(int uid, int userId) {
2344        if (UserHandle.getUserId(uid) == userId || uid == Process.SYSTEM_UID || uid == 0)
2345            return;
2346
2347        throw new SecurityException("Caller uid=" + uid
2348                + " is not privileged to communicate with user=" + userId);
2349    }
2350
2351    @Override
2352    public int checkPermission(String permName, String pkgName) {
2353        synchronized (mPackages) {
2354            PackageParser.Package p = mPackages.get(pkgName);
2355            if (p != null && p.mExtras != null) {
2356                PackageSetting ps = (PackageSetting)p.mExtras;
2357                if (ps.sharedUser != null) {
2358                    if (ps.sharedUser.grantedPermissions.contains(permName)) {
2359                        return PackageManager.PERMISSION_GRANTED;
2360                    }
2361                } else if (ps.grantedPermissions.contains(permName)) {
2362                    return PackageManager.PERMISSION_GRANTED;
2363                }
2364            }
2365        }
2366        return PackageManager.PERMISSION_DENIED;
2367    }
2368
2369    @Override
2370    public int checkUidPermission(String permName, int uid) {
2371        synchronized (mPackages) {
2372            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2373            if (obj != null) {
2374                GrantedPermissions gp = (GrantedPermissions)obj;
2375                if (gp.grantedPermissions.contains(permName)) {
2376                    return PackageManager.PERMISSION_GRANTED;
2377                }
2378            } else {
2379                HashSet<String> perms = mSystemPermissions.get(uid);
2380                if (perms != null && perms.contains(permName)) {
2381                    return PackageManager.PERMISSION_GRANTED;
2382                }
2383            }
2384        }
2385        return PackageManager.PERMISSION_DENIED;
2386    }
2387
2388    /**
2389     * Checks if the request is from the system or an app that has INTERACT_ACROSS_USERS
2390     * or INTERACT_ACROSS_USERS_FULL permissions, if the userid is not for the caller.
2391     * @param checkShell TODO(yamasani):
2392     * @param message the message to log on security exception
2393     */
2394    void enforceCrossUserPermission(int callingUid, int userId, boolean requireFullPermission,
2395            boolean checkShell, String message) {
2396        if (userId < 0) {
2397            throw new IllegalArgumentException("Invalid userId " + userId);
2398        }
2399        if (checkShell) {
2400            enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, userId);
2401        }
2402        if (userId == UserHandle.getUserId(callingUid)) return;
2403        if (callingUid != Process.SYSTEM_UID && callingUid != 0) {
2404            if (requireFullPermission) {
2405                mContext.enforceCallingOrSelfPermission(
2406                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2407            } else {
2408                try {
2409                    mContext.enforceCallingOrSelfPermission(
2410                            android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, message);
2411                } catch (SecurityException se) {
2412                    mContext.enforceCallingOrSelfPermission(
2413                            android.Manifest.permission.INTERACT_ACROSS_USERS, message);
2414                }
2415            }
2416        }
2417    }
2418
2419    void enforceShellRestriction(String restriction, int callingUid, int userHandle) {
2420        if (callingUid == Process.SHELL_UID) {
2421            if (userHandle >= 0
2422                    && sUserManager.hasUserRestriction(restriction, userHandle)) {
2423                throw new SecurityException("Shell does not have permission to access user "
2424                        + userHandle);
2425            } else if (userHandle < 0) {
2426                Slog.e(TAG, "Unable to check shell permission for user " + userHandle + "\n\t"
2427                        + Debug.getCallers(3));
2428            }
2429        }
2430    }
2431
2432    private BasePermission findPermissionTreeLP(String permName) {
2433        for(BasePermission bp : mSettings.mPermissionTrees.values()) {
2434            if (permName.startsWith(bp.name) &&
2435                    permName.length() > bp.name.length() &&
2436                    permName.charAt(bp.name.length()) == '.') {
2437                return bp;
2438            }
2439        }
2440        return null;
2441    }
2442
2443    private BasePermission checkPermissionTreeLP(String permName) {
2444        if (permName != null) {
2445            BasePermission bp = findPermissionTreeLP(permName);
2446            if (bp != null) {
2447                if (bp.uid == UserHandle.getAppId(Binder.getCallingUid())) {
2448                    return bp;
2449                }
2450                throw new SecurityException("Calling uid "
2451                        + Binder.getCallingUid()
2452                        + " is not allowed to add to permission tree "
2453                        + bp.name + " owned by uid " + bp.uid);
2454            }
2455        }
2456        throw new SecurityException("No permission tree found for " + permName);
2457    }
2458
2459    static boolean compareStrings(CharSequence s1, CharSequence s2) {
2460        if (s1 == null) {
2461            return s2 == null;
2462        }
2463        if (s2 == null) {
2464            return false;
2465        }
2466        if (s1.getClass() != s2.getClass()) {
2467            return false;
2468        }
2469        return s1.equals(s2);
2470    }
2471
2472    static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) {
2473        if (pi1.icon != pi2.icon) return false;
2474        if (pi1.logo != pi2.logo) return false;
2475        if (pi1.protectionLevel != pi2.protectionLevel) return false;
2476        if (!compareStrings(pi1.name, pi2.name)) return false;
2477        if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false;
2478        // We'll take care of setting this one.
2479        if (!compareStrings(pi1.packageName, pi2.packageName)) return false;
2480        // These are not currently stored in settings.
2481        //if (!compareStrings(pi1.group, pi2.group)) return false;
2482        //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false;
2483        //if (pi1.labelRes != pi2.labelRes) return false;
2484        //if (pi1.descriptionRes != pi2.descriptionRes) return false;
2485        return true;
2486    }
2487
2488    int permissionInfoFootprint(PermissionInfo info) {
2489        int size = info.name.length();
2490        if (info.nonLocalizedLabel != null) size += info.nonLocalizedLabel.length();
2491        if (info.nonLocalizedDescription != null) size += info.nonLocalizedDescription.length();
2492        return size;
2493    }
2494
2495    int calculateCurrentPermissionFootprintLocked(BasePermission tree) {
2496        int size = 0;
2497        for (BasePermission perm : mSettings.mPermissions.values()) {
2498            if (perm.uid == tree.uid) {
2499                size += perm.name.length() + permissionInfoFootprint(perm.perm.info);
2500            }
2501        }
2502        return size;
2503    }
2504
2505    void enforcePermissionCapLocked(PermissionInfo info, BasePermission tree) {
2506        // We calculate the max size of permissions defined by this uid and throw
2507        // if that plus the size of 'info' would exceed our stated maximum.
2508        if (tree.uid != Process.SYSTEM_UID) {
2509            final int curTreeSize = calculateCurrentPermissionFootprintLocked(tree);
2510            if (curTreeSize + permissionInfoFootprint(info) > MAX_PERMISSION_TREE_FOOTPRINT) {
2511                throw new SecurityException("Permission tree size cap exceeded");
2512            }
2513        }
2514    }
2515
2516    boolean addPermissionLocked(PermissionInfo info, boolean async) {
2517        if (info.labelRes == 0 && info.nonLocalizedLabel == null) {
2518            throw new SecurityException("Label must be specified in permission");
2519        }
2520        BasePermission tree = checkPermissionTreeLP(info.name);
2521        BasePermission bp = mSettings.mPermissions.get(info.name);
2522        boolean added = bp == null;
2523        boolean changed = true;
2524        int fixedLevel = PermissionInfo.fixProtectionLevel(info.protectionLevel);
2525        if (added) {
2526            enforcePermissionCapLocked(info, tree);
2527            bp = new BasePermission(info.name, tree.sourcePackage,
2528                    BasePermission.TYPE_DYNAMIC);
2529        } else if (bp.type != BasePermission.TYPE_DYNAMIC) {
2530            throw new SecurityException(
2531                    "Not allowed to modify non-dynamic permission "
2532                    + info.name);
2533        } else {
2534            if (bp.protectionLevel == fixedLevel
2535                    && bp.perm.owner.equals(tree.perm.owner)
2536                    && bp.uid == tree.uid
2537                    && comparePermissionInfos(bp.perm.info, info)) {
2538                changed = false;
2539            }
2540        }
2541        bp.protectionLevel = fixedLevel;
2542        info = new PermissionInfo(info);
2543        info.protectionLevel = fixedLevel;
2544        bp.perm = new PackageParser.Permission(tree.perm.owner, info);
2545        bp.perm.info.packageName = tree.perm.info.packageName;
2546        bp.uid = tree.uid;
2547        if (added) {
2548            mSettings.mPermissions.put(info.name, bp);
2549        }
2550        if (changed) {
2551            if (!async) {
2552                mSettings.writeLPr();
2553            } else {
2554                scheduleWriteSettingsLocked();
2555            }
2556        }
2557        return added;
2558    }
2559
2560    @Override
2561    public boolean addPermission(PermissionInfo info) {
2562        synchronized (mPackages) {
2563            return addPermissionLocked(info, false);
2564        }
2565    }
2566
2567    @Override
2568    public boolean addPermissionAsync(PermissionInfo info) {
2569        synchronized (mPackages) {
2570            return addPermissionLocked(info, true);
2571        }
2572    }
2573
2574    @Override
2575    public void removePermission(String name) {
2576        synchronized (mPackages) {
2577            checkPermissionTreeLP(name);
2578            BasePermission bp = mSettings.mPermissions.get(name);
2579            if (bp != null) {
2580                if (bp.type != BasePermission.TYPE_DYNAMIC) {
2581                    throw new SecurityException(
2582                            "Not allowed to modify non-dynamic permission "
2583                            + name);
2584                }
2585                mSettings.mPermissions.remove(name);
2586                mSettings.writeLPr();
2587            }
2588        }
2589    }
2590
2591    private static void checkGrantRevokePermissions(PackageParser.Package pkg, BasePermission bp) {
2592        int index = pkg.requestedPermissions.indexOf(bp.name);
2593        if (index == -1) {
2594            throw new SecurityException("Package " + pkg.packageName
2595                    + " has not requested permission " + bp.name);
2596        }
2597        boolean isNormal =
2598                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2599                        == PermissionInfo.PROTECTION_NORMAL);
2600        boolean isDangerous =
2601                ((bp.protectionLevel&PermissionInfo.PROTECTION_MASK_BASE)
2602                        == PermissionInfo.PROTECTION_DANGEROUS);
2603        boolean isDevelopment =
2604                ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
2605
2606        if (!isNormal && !isDangerous && !isDevelopment) {
2607            throw new SecurityException("Permission " + bp.name
2608                    + " is not a changeable permission type");
2609        }
2610
2611        if (isNormal || isDangerous) {
2612            if (pkg.requestedPermissionsRequired.get(index)) {
2613                throw new SecurityException("Can't change " + bp.name
2614                        + ". It is required by the application");
2615            }
2616        }
2617    }
2618
2619    @Override
2620    public void grantPermission(String packageName, String permissionName) {
2621        mContext.enforceCallingOrSelfPermission(
2622                android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2623        synchronized (mPackages) {
2624            final PackageParser.Package pkg = mPackages.get(packageName);
2625            if (pkg == null) {
2626                throw new IllegalArgumentException("Unknown package: " + packageName);
2627            }
2628            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2629            if (bp == null) {
2630                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2631            }
2632
2633            checkGrantRevokePermissions(pkg, bp);
2634
2635            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2636            if (ps == null) {
2637                return;
2638            }
2639            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2640            if (gp.grantedPermissions.add(permissionName)) {
2641                if (ps.haveGids) {
2642                    gp.gids = appendInts(gp.gids, bp.gids);
2643                }
2644                mSettings.writeLPr();
2645            }
2646        }
2647    }
2648
2649    @Override
2650    public void revokePermission(String packageName, String permissionName) {
2651        int changedAppId = -1;
2652
2653        synchronized (mPackages) {
2654            final PackageParser.Package pkg = mPackages.get(packageName);
2655            if (pkg == null) {
2656                throw new IllegalArgumentException("Unknown package: " + packageName);
2657            }
2658            if (pkg.applicationInfo.uid != Binder.getCallingUid()) {
2659                mContext.enforceCallingOrSelfPermission(
2660                        android.Manifest.permission.GRANT_REVOKE_PERMISSIONS, null);
2661            }
2662            final BasePermission bp = mSettings.mPermissions.get(permissionName);
2663            if (bp == null) {
2664                throw new IllegalArgumentException("Unknown permission: " + permissionName);
2665            }
2666
2667            checkGrantRevokePermissions(pkg, bp);
2668
2669            final PackageSetting ps = (PackageSetting) pkg.mExtras;
2670            if (ps == null) {
2671                return;
2672            }
2673            final GrantedPermissions gp = (ps.sharedUser != null) ? ps.sharedUser : ps;
2674            if (gp.grantedPermissions.remove(permissionName)) {
2675                gp.grantedPermissions.remove(permissionName);
2676                if (ps.haveGids) {
2677                    gp.gids = removeInts(gp.gids, bp.gids);
2678                }
2679                mSettings.writeLPr();
2680                changedAppId = ps.appId;
2681            }
2682        }
2683
2684        if (changedAppId >= 0) {
2685            // We changed the perm on someone, kill its processes.
2686            IActivityManager am = ActivityManagerNative.getDefault();
2687            if (am != null) {
2688                final int callingUserId = UserHandle.getCallingUserId();
2689                final long ident = Binder.clearCallingIdentity();
2690                try {
2691                    //XXX we should only revoke for the calling user's app permissions,
2692                    // but for now we impact all users.
2693                    //am.killUid(UserHandle.getUid(callingUserId, changedAppId),
2694                    //        "revoke " + permissionName);
2695                    int[] users = sUserManager.getUserIds();
2696                    for (int user : users) {
2697                        am.killUid(UserHandle.getUid(user, changedAppId),
2698                                "revoke " + permissionName);
2699                    }
2700                } catch (RemoteException e) {
2701                } finally {
2702                    Binder.restoreCallingIdentity(ident);
2703                }
2704            }
2705        }
2706    }
2707
2708    @Override
2709    public boolean isProtectedBroadcast(String actionName) {
2710        synchronized (mPackages) {
2711            return mProtectedBroadcasts.contains(actionName);
2712        }
2713    }
2714
2715    @Override
2716    public int checkSignatures(String pkg1, String pkg2) {
2717        synchronized (mPackages) {
2718            final PackageParser.Package p1 = mPackages.get(pkg1);
2719            final PackageParser.Package p2 = mPackages.get(pkg2);
2720            if (p1 == null || p1.mExtras == null
2721                    || p2 == null || p2.mExtras == null) {
2722                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2723            }
2724            return compareSignatures(p1.mSignatures, p2.mSignatures);
2725        }
2726    }
2727
2728    @Override
2729    public int checkUidSignatures(int uid1, int uid2) {
2730        // Map to base uids.
2731        uid1 = UserHandle.getAppId(uid1);
2732        uid2 = UserHandle.getAppId(uid2);
2733        // reader
2734        synchronized (mPackages) {
2735            Signature[] s1;
2736            Signature[] s2;
2737            Object obj = mSettings.getUserIdLPr(uid1);
2738            if (obj != null) {
2739                if (obj instanceof SharedUserSetting) {
2740                    s1 = ((SharedUserSetting)obj).signatures.mSignatures;
2741                } else if (obj instanceof PackageSetting) {
2742                    s1 = ((PackageSetting)obj).signatures.mSignatures;
2743                } else {
2744                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2745                }
2746            } else {
2747                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2748            }
2749            obj = mSettings.getUserIdLPr(uid2);
2750            if (obj != null) {
2751                if (obj instanceof SharedUserSetting) {
2752                    s2 = ((SharedUserSetting)obj).signatures.mSignatures;
2753                } else if (obj instanceof PackageSetting) {
2754                    s2 = ((PackageSetting)obj).signatures.mSignatures;
2755                } else {
2756                    return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2757                }
2758            } else {
2759                return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
2760            }
2761            return compareSignatures(s1, s2);
2762        }
2763    }
2764
2765    /**
2766     * Compares two sets of signatures. Returns:
2767     * <br />
2768     * {@link PackageManager#SIGNATURE_NEITHER_SIGNED}: if both signature sets are null,
2769     * <br />
2770     * {@link PackageManager#SIGNATURE_FIRST_NOT_SIGNED}: if the first signature set is null,
2771     * <br />
2772     * {@link PackageManager#SIGNATURE_SECOND_NOT_SIGNED}: if the second signature set is null,
2773     * <br />
2774     * {@link PackageManager#SIGNATURE_MATCH}: if the two signature sets are identical,
2775     * <br />
2776     * {@link PackageManager#SIGNATURE_NO_MATCH}: if the two signature sets differ.
2777     */
2778    static int compareSignatures(Signature[] s1, Signature[] s2) {
2779        if (s1 == null) {
2780            return s2 == null
2781                    ? PackageManager.SIGNATURE_NEITHER_SIGNED
2782                    : PackageManager.SIGNATURE_FIRST_NOT_SIGNED;
2783        }
2784
2785        if (s2 == null) {
2786            return PackageManager.SIGNATURE_SECOND_NOT_SIGNED;
2787        }
2788
2789        if (s1.length != s2.length) {
2790            return PackageManager.SIGNATURE_NO_MATCH;
2791        }
2792
2793        // Since both signature sets are of size 1, we can compare without HashSets.
2794        if (s1.length == 1) {
2795            return s1[0].equals(s2[0]) ?
2796                    PackageManager.SIGNATURE_MATCH :
2797                    PackageManager.SIGNATURE_NO_MATCH;
2798        }
2799
2800        HashSet<Signature> set1 = new HashSet<Signature>();
2801        for (Signature sig : s1) {
2802            set1.add(sig);
2803        }
2804        HashSet<Signature> set2 = new HashSet<Signature>();
2805        for (Signature sig : s2) {
2806            set2.add(sig);
2807        }
2808        // Make sure s2 contains all signatures in s1.
2809        if (set1.equals(set2)) {
2810            return PackageManager.SIGNATURE_MATCH;
2811        }
2812        return PackageManager.SIGNATURE_NO_MATCH;
2813    }
2814
2815    /**
2816     * If the database version for this type of package (internal storage or
2817     * external storage) is less than the version where package signatures
2818     * were updated, return true.
2819     */
2820    private boolean isCompatSignatureUpdateNeeded(PackageParser.Package scannedPkg) {
2821        return (isExternal(scannedPkg) && mSettings.isExternalDatabaseVersionOlderThan(
2822                DatabaseVersion.SIGNATURE_END_ENTITY))
2823                || (!isExternal(scannedPkg) && mSettings.isInternalDatabaseVersionOlderThan(
2824                        DatabaseVersion.SIGNATURE_END_ENTITY));
2825    }
2826
2827    /**
2828     * Used for backward compatibility to make sure any packages with
2829     * certificate chains get upgraded to the new style. {@code existingSigs}
2830     * will be in the old format (since they were stored on disk from before the
2831     * system upgrade) and {@code scannedSigs} will be in the newer format.
2832     */
2833    private int compareSignaturesCompat(PackageSignatures existingSigs,
2834            PackageParser.Package scannedPkg) {
2835        if (!isCompatSignatureUpdateNeeded(scannedPkg)) {
2836            return PackageManager.SIGNATURE_NO_MATCH;
2837        }
2838
2839        HashSet<Signature> existingSet = new HashSet<Signature>();
2840        for (Signature sig : existingSigs.mSignatures) {
2841            existingSet.add(sig);
2842        }
2843        HashSet<Signature> scannedCompatSet = new HashSet<Signature>();
2844        for (Signature sig : scannedPkg.mSignatures) {
2845            try {
2846                Signature[] chainSignatures = sig.getChainSignatures();
2847                for (Signature chainSig : chainSignatures) {
2848                    scannedCompatSet.add(chainSig);
2849                }
2850            } catch (CertificateEncodingException e) {
2851                scannedCompatSet.add(sig);
2852            }
2853        }
2854        /*
2855         * Make sure the expanded scanned set contains all signatures in the
2856         * existing one.
2857         */
2858        if (scannedCompatSet.equals(existingSet)) {
2859            // Migrate the old signatures to the new scheme.
2860            existingSigs.assignSignatures(scannedPkg.mSignatures);
2861            // The new KeySets will be re-added later in the scanning process.
2862            synchronized (mPackages) {
2863                mSettings.mKeySetManagerService.removeAppKeySetDataLPw(scannedPkg.packageName);
2864            }
2865            return PackageManager.SIGNATURE_MATCH;
2866        }
2867        return PackageManager.SIGNATURE_NO_MATCH;
2868    }
2869
2870    @Override
2871    public String[] getPackagesForUid(int uid) {
2872        uid = UserHandle.getAppId(uid);
2873        // reader
2874        synchronized (mPackages) {
2875            Object obj = mSettings.getUserIdLPr(uid);
2876            if (obj instanceof SharedUserSetting) {
2877                final SharedUserSetting sus = (SharedUserSetting) obj;
2878                final int N = sus.packages.size();
2879                final String[] res = new String[N];
2880                final Iterator<PackageSetting> it = sus.packages.iterator();
2881                int i = 0;
2882                while (it.hasNext()) {
2883                    res[i++] = it.next().name;
2884                }
2885                return res;
2886            } else if (obj instanceof PackageSetting) {
2887                final PackageSetting ps = (PackageSetting) obj;
2888                return new String[] { ps.name };
2889            }
2890        }
2891        return null;
2892    }
2893
2894    @Override
2895    public String getNameForUid(int uid) {
2896        // reader
2897        synchronized (mPackages) {
2898            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2899            if (obj instanceof SharedUserSetting) {
2900                final SharedUserSetting sus = (SharedUserSetting) obj;
2901                return sus.name + ":" + sus.userId;
2902            } else if (obj instanceof PackageSetting) {
2903                final PackageSetting ps = (PackageSetting) obj;
2904                return ps.name;
2905            }
2906        }
2907        return null;
2908    }
2909
2910    @Override
2911    public int getUidForSharedUser(String sharedUserName) {
2912        if(sharedUserName == null) {
2913            return -1;
2914        }
2915        // reader
2916        synchronized (mPackages) {
2917            final SharedUserSetting suid = mSettings.getSharedUserLPw(sharedUserName, 0, false);
2918            if (suid == null) {
2919                return -1;
2920            }
2921            return suid.userId;
2922        }
2923    }
2924
2925    @Override
2926    public int getFlagsForUid(int uid) {
2927        synchronized (mPackages) {
2928            Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
2929            if (obj instanceof SharedUserSetting) {
2930                final SharedUserSetting sus = (SharedUserSetting) obj;
2931                return sus.pkgFlags;
2932            } else if (obj instanceof PackageSetting) {
2933                final PackageSetting ps = (PackageSetting) obj;
2934                return ps.pkgFlags;
2935            }
2936        }
2937        return 0;
2938    }
2939
2940    @Override
2941    public boolean isUidPrivileged(int uid) {
2942        uid = UserHandle.getAppId(uid);
2943        // reader
2944        synchronized (mPackages) {
2945            Object obj = mSettings.getUserIdLPr(uid);
2946            if (obj instanceof SharedUserSetting) {
2947                final SharedUserSetting sus = (SharedUserSetting) obj;
2948                final Iterator<PackageSetting> it = sus.packages.iterator();
2949                while (it.hasNext()) {
2950                    if (it.next().isPrivileged()) {
2951                        return true;
2952                    }
2953                }
2954            } else if (obj instanceof PackageSetting) {
2955                final PackageSetting ps = (PackageSetting) obj;
2956                return ps.isPrivileged();
2957            }
2958        }
2959        return false;
2960    }
2961
2962    @Override
2963    public String[] getAppOpPermissionPackages(String permissionName) {
2964        synchronized (mPackages) {
2965            ArraySet<String> pkgs = mAppOpPermissionPackages.get(permissionName);
2966            if (pkgs == null) {
2967                return null;
2968            }
2969            return pkgs.toArray(new String[pkgs.size()]);
2970        }
2971    }
2972
2973    @Override
2974    public ResolveInfo resolveIntent(Intent intent, String resolvedType,
2975            int flags, int userId) {
2976        if (!sUserManager.exists(userId)) return null;
2977        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "resolve intent");
2978        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2979        return chooseBestActivity(intent, resolvedType, flags, query, userId);
2980    }
2981
2982    @Override
2983    public void setLastChosenActivity(Intent intent, String resolvedType, int flags,
2984            IntentFilter filter, int match, ComponentName activity) {
2985        final int userId = UserHandle.getCallingUserId();
2986        if (DEBUG_PREFERRED) {
2987            Log.v(TAG, "setLastChosenActivity intent=" + intent
2988                + " resolvedType=" + resolvedType
2989                + " flags=" + flags
2990                + " filter=" + filter
2991                + " match=" + match
2992                + " activity=" + activity);
2993            filter.dump(new PrintStreamPrinter(System.out), "    ");
2994        }
2995        intent.setComponent(null);
2996        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
2997        // Find any earlier preferred or last chosen entries and nuke them
2998        findPreferredActivity(intent, resolvedType,
2999                flags, query, 0, false, true, false, userId);
3000        // Add the new activity as the last chosen for this filter
3001        addPreferredActivityInternal(filter, match, null, activity, false, userId,
3002                "Setting last chosen");
3003    }
3004
3005    @Override
3006    public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
3007        final int userId = UserHandle.getCallingUserId();
3008        if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
3009        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
3010        return findPreferredActivity(intent, resolvedType, flags, query, 0,
3011                false, false, false, userId);
3012    }
3013
3014    private ResolveInfo chooseBestActivity(Intent intent, String resolvedType,
3015            int flags, List<ResolveInfo> query, int userId) {
3016        if (query != null) {
3017            final int N = query.size();
3018            if (N == 1) {
3019                return query.get(0);
3020            } else if (N > 1) {
3021                final boolean debug = ((intent.getFlags() & Intent.FLAG_DEBUG_LOG_RESOLUTION) != 0);
3022                // If there is more than one activity with the same priority,
3023                // then let the user decide between them.
3024                ResolveInfo r0 = query.get(0);
3025                ResolveInfo r1 = query.get(1);
3026                if (DEBUG_INTENT_MATCHING || debug) {
3027                    Slog.v(TAG, r0.activityInfo.name + "=" + r0.priority + " vs "
3028                            + r1.activityInfo.name + "=" + r1.priority);
3029                }
3030                // If the first activity has a higher priority, or a different
3031                // default, then it is always desireable to pick it.
3032                if (r0.priority != r1.priority
3033                        || r0.preferredOrder != r1.preferredOrder
3034                        || r0.isDefault != r1.isDefault) {
3035                    return query.get(0);
3036                }
3037                // If we have saved a preference for a preferred activity for
3038                // this Intent, use that.
3039                ResolveInfo ri = findPreferredActivity(intent, resolvedType,
3040                        flags, query, r0.priority, true, false, debug, userId);
3041                if (ri != null) {
3042                    return ri;
3043                }
3044                if (userId != 0) {
3045                    ri = new ResolveInfo(mResolveInfo);
3046                    ri.activityInfo = new ActivityInfo(ri.activityInfo);
3047                    ri.activityInfo.applicationInfo = new ApplicationInfo(
3048                            ri.activityInfo.applicationInfo);
3049                    ri.activityInfo.applicationInfo.uid = UserHandle.getUid(userId,
3050                            UserHandle.getAppId(ri.activityInfo.applicationInfo.uid));
3051                    return ri;
3052                }
3053                return mResolveInfo;
3054            }
3055        }
3056        return null;
3057    }
3058
3059    private ResolveInfo findPersistentPreferredActivityLP(Intent intent, String resolvedType,
3060            int flags, List<ResolveInfo> query, boolean debug, int userId) {
3061        final int N = query.size();
3062        PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
3063                .get(userId);
3064        // Get the list of persistent preferred activities that handle the intent
3065        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for presistent preferred activities...");
3066        List<PersistentPreferredActivity> pprefs = ppir != null
3067                ? ppir.queryIntent(intent, resolvedType,
3068                        (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3069                : null;
3070        if (pprefs != null && pprefs.size() > 0) {
3071            final int M = pprefs.size();
3072            for (int i=0; i<M; i++) {
3073                final PersistentPreferredActivity ppa = pprefs.get(i);
3074                if (DEBUG_PREFERRED || debug) {
3075                    Slog.v(TAG, "Checking PersistentPreferredActivity ds="
3076                            + (ppa.countDataSchemes() > 0 ? ppa.getDataScheme(0) : "<none>")
3077                            + "\n  component=" + ppa.mComponent);
3078                    ppa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3079                }
3080                final ActivityInfo ai = getActivityInfo(ppa.mComponent,
3081                        flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3082                if (DEBUG_PREFERRED || debug) {
3083                    Slog.v(TAG, "Found persistent preferred activity:");
3084                    if (ai != null) {
3085                        ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3086                    } else {
3087                        Slog.v(TAG, "  null");
3088                    }
3089                }
3090                if (ai == null) {
3091                    // This previously registered persistent preferred activity
3092                    // component is no longer known. Ignore it and do NOT remove it.
3093                    continue;
3094                }
3095                for (int j=0; j<N; j++) {
3096                    final ResolveInfo ri = query.get(j);
3097                    if (!ri.activityInfo.applicationInfo.packageName
3098                            .equals(ai.applicationInfo.packageName)) {
3099                        continue;
3100                    }
3101                    if (!ri.activityInfo.name.equals(ai.name)) {
3102                        continue;
3103                    }
3104                    //  Found a persistent preference that can handle the intent.
3105                    if (DEBUG_PREFERRED || debug) {
3106                        Slog.v(TAG, "Returning persistent preferred activity: " +
3107                                ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3108                    }
3109                    return ri;
3110                }
3111            }
3112        }
3113        return null;
3114    }
3115
3116    ResolveInfo findPreferredActivity(Intent intent, String resolvedType, int flags,
3117            List<ResolveInfo> query, int priority, boolean always,
3118            boolean removeMatches, boolean debug, int userId) {
3119        if (!sUserManager.exists(userId)) return null;
3120        // writer
3121        synchronized (mPackages) {
3122            if (intent.getSelector() != null) {
3123                intent = intent.getSelector();
3124            }
3125            if (DEBUG_PREFERRED) intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION);
3126
3127            // Try to find a matching persistent preferred activity.
3128            ResolveInfo pri = findPersistentPreferredActivityLP(intent, resolvedType, flags, query,
3129                    debug, userId);
3130
3131            // If a persistent preferred activity matched, use it.
3132            if (pri != null) {
3133                return pri;
3134            }
3135
3136            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
3137            // Get the list of preferred activities that handle the intent
3138            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Looking for preferred activities...");
3139            List<PreferredActivity> prefs = pir != null
3140                    ? pir.queryIntent(intent, resolvedType,
3141                            (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId)
3142                    : null;
3143            if (prefs != null && prefs.size() > 0) {
3144                boolean changed = false;
3145                try {
3146                    // First figure out how good the original match set is.
3147                    // We will only allow preferred activities that came
3148                    // from the same match quality.
3149                    int match = 0;
3150
3151                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Figuring out best match...");
3152
3153                    final int N = query.size();
3154                    for (int j=0; j<N; j++) {
3155                        final ResolveInfo ri = query.get(j);
3156                        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Match for " + ri.activityInfo
3157                                + ": 0x" + Integer.toHexString(match));
3158                        if (ri.match > match) {
3159                            match = ri.match;
3160                        }
3161                    }
3162
3163                    if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Best match: 0x"
3164                            + Integer.toHexString(match));
3165
3166                    match &= IntentFilter.MATCH_CATEGORY_MASK;
3167                    final int M = prefs.size();
3168                    for (int i=0; i<M; i++) {
3169                        final PreferredActivity pa = prefs.get(i);
3170                        if (DEBUG_PREFERRED || debug) {
3171                            Slog.v(TAG, "Checking PreferredActivity ds="
3172                                    + (pa.countDataSchemes() > 0 ? pa.getDataScheme(0) : "<none>")
3173                                    + "\n  component=" + pa.mPref.mComponent);
3174                            pa.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3175                        }
3176                        if (pa.mPref.mMatch != match) {
3177                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping bad match "
3178                                    + Integer.toHexString(pa.mPref.mMatch));
3179                            continue;
3180                        }
3181                        // If it's not an "always" type preferred activity and that's what we're
3182                        // looking for, skip it.
3183                        if (always && !pa.mPref.mAlways) {
3184                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Skipping mAlways=false entry");
3185                            continue;
3186                        }
3187                        final ActivityInfo ai = getActivityInfo(pa.mPref.mComponent,
3188                                flags | PackageManager.GET_DISABLED_COMPONENTS, userId);
3189                        if (DEBUG_PREFERRED || debug) {
3190                            Slog.v(TAG, "Found preferred activity:");
3191                            if (ai != null) {
3192                                ai.dump(new LogPrinter(Log.VERBOSE, TAG, Log.LOG_ID_SYSTEM), "  ");
3193                            } else {
3194                                Slog.v(TAG, "  null");
3195                            }
3196                        }
3197                        if (ai == null) {
3198                            // This previously registered preferred activity
3199                            // component is no longer known.  Most likely an update
3200                            // to the app was installed and in the new version this
3201                            // component no longer exists.  Clean it up by removing
3202                            // it from the preferred activities list, and skip it.
3203                            Slog.w(TAG, "Removing dangling preferred activity: "
3204                                    + pa.mPref.mComponent);
3205                            pir.removeFilter(pa);
3206                            changed = true;
3207                            continue;
3208                        }
3209                        for (int j=0; j<N; j++) {
3210                            final ResolveInfo ri = query.get(j);
3211                            if (!ri.activityInfo.applicationInfo.packageName
3212                                    .equals(ai.applicationInfo.packageName)) {
3213                                continue;
3214                            }
3215                            if (!ri.activityInfo.name.equals(ai.name)) {
3216                                continue;
3217                            }
3218
3219                            if (removeMatches) {
3220                                pir.removeFilter(pa);
3221                                changed = true;
3222                                if (DEBUG_PREFERRED) {
3223                                    Slog.v(TAG, "Removing match " + pa.mPref.mComponent);
3224                                }
3225                                break;
3226                            }
3227
3228                            // Okay we found a previously set preferred or last chosen app.
3229                            // If the result set is different from when this
3230                            // was created, we need to clear it and re-ask the
3231                            // user their preference, if we're looking for an "always" type entry.
3232                            if (always && !pa.mPref.sameSet(query, priority)) {
3233                                Slog.i(TAG, "Result set changed, dropping preferred activity for "
3234                                        + intent + " type " + resolvedType);
3235                                if (DEBUG_PREFERRED) {
3236                                    Slog.v(TAG, "Removing preferred activity since set changed "
3237                                            + pa.mPref.mComponent);
3238                                }
3239                                pir.removeFilter(pa);
3240                                // Re-add the filter as a "last chosen" entry (!always)
3241                                PreferredActivity lastChosen = new PreferredActivity(
3242                                        pa, pa.mPref.mMatch, null, pa.mPref.mComponent, false);
3243                                pir.addFilter(lastChosen);
3244                                changed = true;
3245                                return null;
3246                            }
3247
3248                            // Yay! Either the set matched or we're looking for the last chosen
3249                            if (DEBUG_PREFERRED || debug) Slog.v(TAG, "Returning preferred activity: "
3250                                    + ri.activityInfo.packageName + "/" + ri.activityInfo.name);
3251                            return ri;
3252                        }
3253                    }
3254                } finally {
3255                    if (changed) {
3256                        if (DEBUG_PREFERRED) {
3257                            Slog.v(TAG, "Preferred activity bookkeeping changed; writing restrictions");
3258                        }
3259                        mSettings.writePackageRestrictionsLPr(userId);
3260                    }
3261                }
3262            }
3263        }
3264        if (DEBUG_PREFERRED || debug) Slog.v(TAG, "No preferred activity to return");
3265        return null;
3266    }
3267
3268    /*
3269     * Returns if intent can be forwarded from the sourceUserId to the targetUserId
3270     */
3271    @Override
3272    public boolean canForwardTo(Intent intent, String resolvedType, int sourceUserId,
3273            int targetUserId) {
3274        mContext.enforceCallingOrSelfPermission(
3275                android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
3276        List<CrossProfileIntentFilter> matches =
3277                getMatchingCrossProfileIntentFilters(intent, resolvedType, sourceUserId);
3278        if (matches != null) {
3279            int size = matches.size();
3280            for (int i = 0; i < size; i++) {
3281                if (matches.get(i).getTargetUserId() == targetUserId) return true;
3282            }
3283        }
3284        return false;
3285    }
3286
3287    private List<CrossProfileIntentFilter> getMatchingCrossProfileIntentFilters(Intent intent,
3288            String resolvedType, int userId) {
3289        CrossProfileIntentResolver resolver = mSettings.mCrossProfileIntentResolvers.get(userId);
3290        if (resolver != null) {
3291            return resolver.queryIntent(intent, resolvedType, false, userId);
3292        }
3293        return null;
3294    }
3295
3296    @Override
3297    public List<ResolveInfo> queryIntentActivities(Intent intent,
3298            String resolvedType, int flags, int userId) {
3299        if (!sUserManager.exists(userId)) return Collections.emptyList();
3300        enforceCrossUserPermission(Binder.getCallingUid(), userId, false, false, "query intent activities");
3301        ComponentName comp = intent.getComponent();
3302        if (comp == null) {
3303            if (intent.getSelector() != null) {
3304                intent = intent.getSelector();
3305                comp = intent.getComponent();
3306            }
3307        }
3308
3309        if (comp != null) {
3310            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3311            final ActivityInfo ai = getActivityInfo(comp, flags, userId);
3312            if (ai != null) {
3313                final ResolveInfo ri = new ResolveInfo();
3314                ri.activityInfo = ai;
3315                list.add(ri);
3316            }
3317            return list;
3318        }
3319
3320        // reader
3321        synchronized (mPackages) {
3322            final String pkgName = intent.getPackage();
3323            if (pkgName == null) {
3324                List<CrossProfileIntentFilter> matchingFilters =
3325                        getMatchingCrossProfileIntentFilters(intent, resolvedType, userId);
3326                // Check for results that need to skip the current profile.
3327                ResolveInfo resolveInfo  = querySkipCurrentProfileIntents(matchingFilters, intent,
3328                        resolvedType, flags, userId);
3329                if (resolveInfo != null) {
3330                    List<ResolveInfo> result = new ArrayList<ResolveInfo>(1);
3331                    result.add(resolveInfo);
3332                    return result;
3333                }
3334                // Check for cross profile results.
3335                resolveInfo = queryCrossProfileIntents(
3336                        matchingFilters, intent, resolvedType, flags, userId);
3337
3338                // Check for results in the current profile.
3339                List<ResolveInfo> result = mActivities.queryIntent(
3340                        intent, resolvedType, flags, userId);
3341                if (resolveInfo != null) {
3342                    result.add(resolveInfo);
3343                    Collections.sort(result, mResolvePrioritySorter);
3344                }
3345                return result;
3346            }
3347            final PackageParser.Package pkg = mPackages.get(pkgName);
3348            if (pkg != null) {
3349                return mActivities.queryIntentForPackage(intent, resolvedType, flags,
3350                        pkg.activities, userId);
3351            }
3352            return new ArrayList<ResolveInfo>();
3353        }
3354    }
3355
3356    private ResolveInfo querySkipCurrentProfileIntents(
3357            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3358            int flags, int sourceUserId) {
3359        if (matchingFilters != null) {
3360            int size = matchingFilters.size();
3361            for (int i = 0; i < size; i ++) {
3362                CrossProfileIntentFilter filter = matchingFilters.get(i);
3363                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) != 0) {
3364                    // Checking if there are activities in the target user that can handle the
3365                    // intent.
3366                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3367                            flags, sourceUserId);
3368                    if (resolveInfo != null) {
3369                        return resolveInfo;
3370                    }
3371                }
3372            }
3373        }
3374        return null;
3375    }
3376
3377    // Return matching ResolveInfo if any for skip current profile intent filters.
3378    private ResolveInfo queryCrossProfileIntents(
3379            List<CrossProfileIntentFilter> matchingFilters, Intent intent, String resolvedType,
3380            int flags, int sourceUserId) {
3381        if (matchingFilters != null) {
3382            // Two {@link CrossProfileIntentFilter}s can have the same targetUserId and
3383            // match the same intent. For performance reasons, it is better not to
3384            // run queryIntent twice for the same userId
3385            SparseBooleanArray alreadyTriedUserIds = new SparseBooleanArray();
3386            int size = matchingFilters.size();
3387            for (int i = 0; i < size; i++) {
3388                CrossProfileIntentFilter filter = matchingFilters.get(i);
3389                int targetUserId = filter.getTargetUserId();
3390                if ((filter.getFlags() & PackageManager.SKIP_CURRENT_PROFILE) == 0
3391                        && !alreadyTriedUserIds.get(targetUserId)) {
3392                    // Checking if there are activities in the target user that can handle the
3393                    // intent.
3394                    ResolveInfo resolveInfo = checkTargetCanHandle(filter, intent, resolvedType,
3395                            flags, sourceUserId);
3396                    if (resolveInfo != null) return resolveInfo;
3397                    alreadyTriedUserIds.put(targetUserId, true);
3398                }
3399            }
3400        }
3401        return null;
3402    }
3403
3404    private ResolveInfo checkTargetCanHandle(CrossProfileIntentFilter filter, Intent intent,
3405            String resolvedType, int flags, int sourceUserId) {
3406        List<ResolveInfo> resultTargetUser = mActivities.queryIntent(intent,
3407                resolvedType, flags, filter.getTargetUserId());
3408        if (resultTargetUser != null && !resultTargetUser.isEmpty()) {
3409            return createForwardingResolveInfo(filter, sourceUserId, filter.getTargetUserId());
3410        }
3411        return null;
3412    }
3413
3414    private ResolveInfo createForwardingResolveInfo(IntentFilter filter,
3415            int sourceUserId, int targetUserId) {
3416        ResolveInfo forwardingResolveInfo = new ResolveInfo();
3417        String className;
3418        if (targetUserId == UserHandle.USER_OWNER) {
3419            className = FORWARD_INTENT_TO_USER_OWNER;
3420        } else {
3421            className = FORWARD_INTENT_TO_MANAGED_PROFILE;
3422        }
3423        ComponentName forwardingActivityComponentName = new ComponentName(
3424                mAndroidApplication.packageName, className);
3425        ActivityInfo forwardingActivityInfo = getActivityInfo(forwardingActivityComponentName, 0,
3426                sourceUserId);
3427        if (targetUserId == UserHandle.USER_OWNER) {
3428            forwardingActivityInfo.showUserIcon = UserHandle.USER_OWNER;
3429            forwardingResolveInfo.noResourceId = true;
3430        }
3431        forwardingResolveInfo.activityInfo = forwardingActivityInfo;
3432        forwardingResolveInfo.priority = 0;
3433        forwardingResolveInfo.preferredOrder = 0;
3434        forwardingResolveInfo.match = 0;
3435        forwardingResolveInfo.isDefault = true;
3436        forwardingResolveInfo.filter = filter;
3437        forwardingResolveInfo.targetUserId = targetUserId;
3438        return forwardingResolveInfo;
3439    }
3440
3441    @Override
3442    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
3443            Intent[] specifics, String[] specificTypes, Intent intent,
3444            String resolvedType, int flags, int userId) {
3445        if (!sUserManager.exists(userId)) return Collections.emptyList();
3446        enforceCrossUserPermission(Binder.getCallingUid(), userId, false,
3447                false, "query intent activity options");
3448        final String resultsAction = intent.getAction();
3449
3450        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
3451                | PackageManager.GET_RESOLVED_FILTER, userId);
3452
3453        if (DEBUG_INTENT_MATCHING) {
3454            Log.v(TAG, "Query " + intent + ": " + results);
3455        }
3456
3457        int specificsPos = 0;
3458        int N;
3459
3460        // todo: note that the algorithm used here is O(N^2).  This
3461        // isn't a problem in our current environment, but if we start running
3462        // into situations where we have more than 5 or 10 matches then this
3463        // should probably be changed to something smarter...
3464
3465        // First we go through and resolve each of the specific items
3466        // that were supplied, taking care of removing any corresponding
3467        // duplicate items in the generic resolve list.
3468        if (specifics != null) {
3469            for (int i=0; i<specifics.length; i++) {
3470                final Intent sintent = specifics[i];
3471                if (sintent == null) {
3472                    continue;
3473                }
3474
3475                if (DEBUG_INTENT_MATCHING) {
3476                    Log.v(TAG, "Specific #" + i + ": " + sintent);
3477                }
3478
3479                String action = sintent.getAction();
3480                if (resultsAction != null && resultsAction.equals(action)) {
3481                    // If this action was explicitly requested, then don't
3482                    // remove things that have it.
3483                    action = null;
3484                }
3485
3486                ResolveInfo ri = null;
3487                ActivityInfo ai = null;
3488
3489                ComponentName comp = sintent.getComponent();
3490                if (comp == null) {
3491                    ri = resolveIntent(
3492                        sintent,
3493                        specificTypes != null ? specificTypes[i] : null,
3494                            flags, userId);
3495                    if (ri == null) {
3496                        continue;
3497                    }
3498                    if (ri == mResolveInfo) {
3499                        // ACK!  Must do something better with this.
3500                    }
3501                    ai = ri.activityInfo;
3502                    comp = new ComponentName(ai.applicationInfo.packageName,
3503                            ai.name);
3504                } else {
3505                    ai = getActivityInfo(comp, flags, userId);
3506                    if (ai == null) {
3507                        continue;
3508                    }
3509                }
3510
3511                // Look for any generic query activities that are duplicates
3512                // of this specific one, and remove them from the results.
3513                if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Specific #" + i + ": " + ai);
3514                N = results.size();
3515                int j;
3516                for (j=specificsPos; j<N; j++) {
3517                    ResolveInfo sri = results.get(j);
3518                    if ((sri.activityInfo.name.equals(comp.getClassName())
3519                            && sri.activityInfo.applicationInfo.packageName.equals(
3520                                    comp.getPackageName()))
3521                        || (action != null && sri.filter.matchAction(action))) {
3522                        results.remove(j);
3523                        if (DEBUG_INTENT_MATCHING) Log.v(
3524                            TAG, "Removing duplicate item from " + j
3525                            + " due to specific " + specificsPos);
3526                        if (ri == null) {
3527                            ri = sri;
3528                        }
3529                        j--;
3530                        N--;
3531                    }
3532                }
3533
3534                // Add this specific item to its proper place.
3535                if (ri == null) {
3536                    ri = new ResolveInfo();
3537                    ri.activityInfo = ai;
3538                }
3539                results.add(specificsPos, ri);
3540                ri.specificIndex = i;
3541                specificsPos++;
3542            }
3543        }
3544
3545        // Now we go through the remaining generic results and remove any
3546        // duplicate actions that are found here.
3547        N = results.size();
3548        for (int i=specificsPos; i<N-1; i++) {
3549            final ResolveInfo rii = results.get(i);
3550            if (rii.filter == null) {
3551                continue;
3552            }
3553
3554            // Iterate over all of the actions of this result's intent
3555            // filter...  typically this should be just one.
3556            final Iterator<String> it = rii.filter.actionsIterator();
3557            if (it == null) {
3558                continue;
3559            }
3560            while (it.hasNext()) {
3561                final String action = it.next();
3562                if (resultsAction != null && resultsAction.equals(action)) {
3563                    // If this action was explicitly requested, then don't
3564                    // remove things that have it.
3565                    continue;
3566                }
3567                for (int j=i+1; j<N; j++) {
3568                    final ResolveInfo rij = results.get(j);
3569                    if (rij.filter != null && rij.filter.hasAction(action)) {
3570                        results.remove(j);
3571                        if (DEBUG_INTENT_MATCHING) Log.v(
3572                            TAG, "Removing duplicate item from " + j
3573                            + " due to action " + action + " at " + i);
3574                        j--;
3575                        N--;
3576                    }
3577                }
3578            }
3579
3580            // If the caller didn't request filter information, drop it now
3581            // so we don't have to marshall/unmarshall it.
3582            if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3583                rii.filter = null;
3584            }
3585        }
3586
3587        // Filter out the caller activity if so requested.
3588        if (caller != null) {
3589            N = results.size();
3590            for (int i=0; i<N; i++) {
3591                ActivityInfo ainfo = results.get(i).activityInfo;
3592                if (caller.getPackageName().equals(ainfo.applicationInfo.packageName)
3593                        && caller.getClassName().equals(ainfo.name)) {
3594                    results.remove(i);
3595                    break;
3596                }
3597            }
3598        }
3599
3600        // If the caller didn't request filter information,
3601        // drop them now so we don't have to
3602        // marshall/unmarshall it.
3603        if ((flags&PackageManager.GET_RESOLVED_FILTER) == 0) {
3604            N = results.size();
3605            for (int i=0; i<N; i++) {
3606                results.get(i).filter = null;
3607            }
3608        }
3609
3610        if (DEBUG_INTENT_MATCHING) Log.v(TAG, "Result: " + results);
3611        return results;
3612    }
3613
3614    @Override
3615    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
3616            int userId) {
3617        if (!sUserManager.exists(userId)) return Collections.emptyList();
3618        ComponentName comp = intent.getComponent();
3619        if (comp == null) {
3620            if (intent.getSelector() != null) {
3621                intent = intent.getSelector();
3622                comp = intent.getComponent();
3623            }
3624        }
3625        if (comp != null) {
3626            List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3627            ActivityInfo ai = getReceiverInfo(comp, flags, userId);
3628            if (ai != null) {
3629                ResolveInfo ri = new ResolveInfo();
3630                ri.activityInfo = ai;
3631                list.add(ri);
3632            }
3633            return list;
3634        }
3635
3636        // reader
3637        synchronized (mPackages) {
3638            String pkgName = intent.getPackage();
3639            if (pkgName == null) {
3640                return mReceivers.queryIntent(intent, resolvedType, flags, userId);
3641            }
3642            final PackageParser.Package pkg = mPackages.get(pkgName);
3643            if (pkg != null) {
3644                return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
3645                        userId);
3646            }
3647            return null;
3648        }
3649    }
3650
3651    @Override
3652    public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
3653        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
3654        if (!sUserManager.exists(userId)) return null;
3655        if (query != null) {
3656            if (query.size() >= 1) {
3657                // If there is more than one service with the same priority,
3658                // just arbitrarily pick the first one.
3659                return query.get(0);
3660            }
3661        }
3662        return null;
3663    }
3664
3665    @Override
3666    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
3667            int userId) {
3668        if (!sUserManager.exists(userId)) return Collections.emptyList();
3669        ComponentName comp = intent.getComponent();
3670        if (comp == null) {
3671            if (intent.getSelector() != null) {
3672                intent = intent.getSelector();
3673                comp = intent.getComponent();
3674            }
3675        }
3676        if (comp != null) {
3677            final List<ResolveInfo> list = new ArrayList<ResolveInfo>(1);
3678            final ServiceInfo si = getServiceInfo(comp, flags, userId);
3679            if (si != null) {
3680                final ResolveInfo ri = new ResolveInfo();
3681                ri.serviceInfo = si;
3682                list.add(ri);
3683            }
3684            return list;
3685        }
3686
3687        // reader
3688        synchronized (mPackages) {
3689            String pkgName = intent.getPackage();
3690            if (pkgName == null) {
3691                return mServices.queryIntent(intent, resolvedType, flags, userId);
3692            }
3693            final PackageParser.Package pkg = mPackages.get(pkgName);
3694            if (pkg != null) {
3695                return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
3696                        userId);
3697            }
3698            return null;
3699        }
3700    }
3701
3702    @Override
3703    public List<ResolveInfo> queryIntentContentProviders(
3704            Intent intent, String resolvedType, int flags, 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 ProviderInfo pi = getProviderInfo(comp, flags, userId);
3716            if (pi != null) {
3717                final ResolveInfo ri = new ResolveInfo();
3718                ri.providerInfo = pi;
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 mProviders.queryIntent(intent, resolvedType, flags, userId);
3729            }
3730            final PackageParser.Package pkg = mPackages.get(pkgName);
3731            if (pkg != null) {
3732                return mProviders.queryIntentForPackage(
3733                        intent, resolvedType, flags, pkg.providers, userId);
3734            }
3735            return null;
3736        }
3737    }
3738
3739    @Override
3740    public ParceledListSlice<PackageInfo> getInstalledPackages(int flags, int userId) {
3741        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3742
3743        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "get installed packages");
3744
3745        // writer
3746        synchronized (mPackages) {
3747            ArrayList<PackageInfo> list;
3748            if (listUninstalled) {
3749                list = new ArrayList<PackageInfo>(mSettings.mPackages.size());
3750                for (PackageSetting ps : mSettings.mPackages.values()) {
3751                    PackageInfo pi;
3752                    if (ps.pkg != null) {
3753                        pi = generatePackageInfo(ps.pkg, flags, userId);
3754                    } else {
3755                        pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3756                    }
3757                    if (pi != null) {
3758                        list.add(pi);
3759                    }
3760                }
3761            } else {
3762                list = new ArrayList<PackageInfo>(mPackages.size());
3763                for (PackageParser.Package p : mPackages.values()) {
3764                    PackageInfo pi = generatePackageInfo(p, flags, userId);
3765                    if (pi != null) {
3766                        list.add(pi);
3767                    }
3768                }
3769            }
3770
3771            return new ParceledListSlice<PackageInfo>(list);
3772        }
3773    }
3774
3775    private void addPackageHoldingPermissions(ArrayList<PackageInfo> list, PackageSetting ps,
3776            String[] permissions, boolean[] tmp, int flags, int userId) {
3777        int numMatch = 0;
3778        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
3779        for (int i=0; i<permissions.length; i++) {
3780            if (gp.grantedPermissions.contains(permissions[i])) {
3781                tmp[i] = true;
3782                numMatch++;
3783            } else {
3784                tmp[i] = false;
3785            }
3786        }
3787        if (numMatch == 0) {
3788            return;
3789        }
3790        PackageInfo pi;
3791        if (ps.pkg != null) {
3792            pi = generatePackageInfo(ps.pkg, flags, userId);
3793        } else {
3794            pi = generatePackageInfoFromSettingsLPw(ps.name, flags, userId);
3795        }
3796        // The above might return null in cases of uninstalled apps or install-state
3797        // skew across users/profiles.
3798        if (pi != null) {
3799            if ((flags&PackageManager.GET_PERMISSIONS) == 0) {
3800                if (numMatch == permissions.length) {
3801                    pi.requestedPermissions = permissions;
3802                } else {
3803                    pi.requestedPermissions = new String[numMatch];
3804                    numMatch = 0;
3805                    for (int i=0; i<permissions.length; i++) {
3806                        if (tmp[i]) {
3807                            pi.requestedPermissions[numMatch] = permissions[i];
3808                            numMatch++;
3809                        }
3810                    }
3811                }
3812            }
3813            list.add(pi);
3814        }
3815    }
3816
3817    @Override
3818    public ParceledListSlice<PackageInfo> getPackagesHoldingPermissions(
3819            String[] permissions, int flags, int userId) {
3820        if (!sUserManager.exists(userId)) return null;
3821        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3822
3823        // writer
3824        synchronized (mPackages) {
3825            ArrayList<PackageInfo> list = new ArrayList<PackageInfo>();
3826            boolean[] tmpBools = new boolean[permissions.length];
3827            if (listUninstalled) {
3828                for (PackageSetting ps : mSettings.mPackages.values()) {
3829                    addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags, userId);
3830                }
3831            } else {
3832                for (PackageParser.Package pkg : mPackages.values()) {
3833                    PackageSetting ps = (PackageSetting)pkg.mExtras;
3834                    if (ps != null) {
3835                        addPackageHoldingPermissions(list, ps, permissions, tmpBools, flags,
3836                                userId);
3837                    }
3838                }
3839            }
3840
3841            return new ParceledListSlice<PackageInfo>(list);
3842        }
3843    }
3844
3845    @Override
3846    public ParceledListSlice<ApplicationInfo> getInstalledApplications(int flags, int userId) {
3847        if (!sUserManager.exists(userId)) return null;
3848        final boolean listUninstalled = (flags & PackageManager.GET_UNINSTALLED_PACKAGES) != 0;
3849
3850        // writer
3851        synchronized (mPackages) {
3852            ArrayList<ApplicationInfo> list;
3853            if (listUninstalled) {
3854                list = new ArrayList<ApplicationInfo>(mSettings.mPackages.size());
3855                for (PackageSetting ps : mSettings.mPackages.values()) {
3856                    ApplicationInfo ai;
3857                    if (ps.pkg != null) {
3858                        ai = PackageParser.generateApplicationInfo(ps.pkg, flags,
3859                                ps.readUserState(userId), userId);
3860                    } else {
3861                        ai = generateApplicationInfoFromSettingsLPw(ps.name, flags, userId);
3862                    }
3863                    if (ai != null) {
3864                        list.add(ai);
3865                    }
3866                }
3867            } else {
3868                list = new ArrayList<ApplicationInfo>(mPackages.size());
3869                for (PackageParser.Package p : mPackages.values()) {
3870                    if (p.mExtras != null) {
3871                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3872                                ((PackageSetting)p.mExtras).readUserState(userId), userId);
3873                        if (ai != null) {
3874                            list.add(ai);
3875                        }
3876                    }
3877                }
3878            }
3879
3880            return new ParceledListSlice<ApplicationInfo>(list);
3881        }
3882    }
3883
3884    public List<ApplicationInfo> getPersistentApplications(int flags) {
3885        final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
3886
3887        // reader
3888        synchronized (mPackages) {
3889            final Iterator<PackageParser.Package> i = mPackages.values().iterator();
3890            final int userId = UserHandle.getCallingUserId();
3891            while (i.hasNext()) {
3892                final PackageParser.Package p = i.next();
3893                if (p.applicationInfo != null
3894                        && (p.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) != 0
3895                        && (!mSafeMode || isSystemApp(p))) {
3896                    PackageSetting ps = mSettings.mPackages.get(p.packageName);
3897                    if (ps != null) {
3898                        ApplicationInfo ai = PackageParser.generateApplicationInfo(p, flags,
3899                                ps.readUserState(userId), userId);
3900                        if (ai != null) {
3901                            finalList.add(ai);
3902                        }
3903                    }
3904                }
3905            }
3906        }
3907
3908        return finalList;
3909    }
3910
3911    @Override
3912    public ProviderInfo resolveContentProvider(String name, int flags, int userId) {
3913        if (!sUserManager.exists(userId)) return null;
3914        // reader
3915        synchronized (mPackages) {
3916            final PackageParser.Provider provider = mProvidersByAuthority.get(name);
3917            PackageSetting ps = provider != null
3918                    ? mSettings.mPackages.get(provider.owner.packageName)
3919                    : null;
3920            return ps != null
3921                    && mSettings.isEnabledLPr(provider.info, flags, userId)
3922                    && (!mSafeMode || (provider.info.applicationInfo.flags
3923                            &ApplicationInfo.FLAG_SYSTEM) != 0)
3924                    ? PackageParser.generateProviderInfo(provider, flags,
3925                            ps.readUserState(userId), userId)
3926                    : null;
3927        }
3928    }
3929
3930    /**
3931     * @deprecated
3932     */
3933    @Deprecated
3934    public void querySyncProviders(List<String> outNames, List<ProviderInfo> outInfo) {
3935        // reader
3936        synchronized (mPackages) {
3937            final Iterator<Map.Entry<String, PackageParser.Provider>> i = mProvidersByAuthority
3938                    .entrySet().iterator();
3939            final int userId = UserHandle.getCallingUserId();
3940            while (i.hasNext()) {
3941                Map.Entry<String, PackageParser.Provider> entry = i.next();
3942                PackageParser.Provider p = entry.getValue();
3943                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3944
3945                if (ps != null && p.syncable
3946                        && (!mSafeMode || (p.info.applicationInfo.flags
3947                                &ApplicationInfo.FLAG_SYSTEM) != 0)) {
3948                    ProviderInfo info = PackageParser.generateProviderInfo(p, 0,
3949                            ps.readUserState(userId), userId);
3950                    if (info != null) {
3951                        outNames.add(entry.getKey());
3952                        outInfo.add(info);
3953                    }
3954                }
3955            }
3956        }
3957    }
3958
3959    @Override
3960    public List<ProviderInfo> queryContentProviders(String processName,
3961            int uid, int flags) {
3962        ArrayList<ProviderInfo> finalList = null;
3963        // reader
3964        synchronized (mPackages) {
3965            final Iterator<PackageParser.Provider> i = mProviders.mProviders.values().iterator();
3966            final int userId = processName != null ?
3967                    UserHandle.getUserId(uid) : UserHandle.getCallingUserId();
3968            while (i.hasNext()) {
3969                final PackageParser.Provider p = i.next();
3970                PackageSetting ps = mSettings.mPackages.get(p.owner.packageName);
3971                if (ps != null && p.info.authority != null
3972                        && (processName == null
3973                                || (p.info.processName.equals(processName)
3974                                        && UserHandle.isSameApp(p.info.applicationInfo.uid, uid)))
3975                        && mSettings.isEnabledLPr(p.info, flags, userId)
3976                        && (!mSafeMode
3977                                || (p.info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)) {
3978                    if (finalList == null) {
3979                        finalList = new ArrayList<ProviderInfo>(3);
3980                    }
3981                    ProviderInfo info = PackageParser.generateProviderInfo(p, flags,
3982                            ps.readUserState(userId), userId);
3983                    if (info != null) {
3984                        finalList.add(info);
3985                    }
3986                }
3987            }
3988        }
3989
3990        if (finalList != null) {
3991            Collections.sort(finalList, mProviderInitOrderSorter);
3992        }
3993
3994        return finalList;
3995    }
3996
3997    @Override
3998    public InstrumentationInfo getInstrumentationInfo(ComponentName name,
3999            int flags) {
4000        // reader
4001        synchronized (mPackages) {
4002            final PackageParser.Instrumentation i = mInstrumentation.get(name);
4003            return PackageParser.generateInstrumentationInfo(i, flags);
4004        }
4005    }
4006
4007    @Override
4008    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
4009            int flags) {
4010        ArrayList<InstrumentationInfo> finalList =
4011            new ArrayList<InstrumentationInfo>();
4012
4013        // reader
4014        synchronized (mPackages) {
4015            final Iterator<PackageParser.Instrumentation> i = mInstrumentation.values().iterator();
4016            while (i.hasNext()) {
4017                final PackageParser.Instrumentation p = i.next();
4018                if (targetPackage == null
4019                        || targetPackage.equals(p.info.targetPackage)) {
4020                    InstrumentationInfo ii = PackageParser.generateInstrumentationInfo(p,
4021                            flags);
4022                    if (ii != null) {
4023                        finalList.add(ii);
4024                    }
4025                }
4026            }
4027        }
4028
4029        return finalList;
4030    }
4031
4032    private void createIdmapsForPackageLI(PackageParser.Package pkg) {
4033        HashMap<String, PackageParser.Package> overlays = mOverlays.get(pkg.packageName);
4034        if (overlays == null) {
4035            Slog.w(TAG, "Unable to create idmap for " + pkg.packageName + ": no overlay packages");
4036            return;
4037        }
4038        for (PackageParser.Package opkg : overlays.values()) {
4039            // Not much to do if idmap fails: we already logged the error
4040            // and we certainly don't want to abort installation of pkg simply
4041            // because an overlay didn't fit properly. For these reasons,
4042            // ignore the return value of createIdmapForPackagePairLI.
4043            createIdmapForPackagePairLI(pkg, opkg);
4044        }
4045    }
4046
4047    private boolean createIdmapForPackagePairLI(PackageParser.Package pkg,
4048            PackageParser.Package opkg) {
4049        if (!opkg.mTrustedOverlay) {
4050            Slog.w(TAG, "Skipping target and overlay pair " + pkg.baseCodePath + " and " +
4051                    opkg.baseCodePath + ": overlay not trusted");
4052            return false;
4053        }
4054        HashMap<String, PackageParser.Package> overlaySet = mOverlays.get(pkg.packageName);
4055        if (overlaySet == null) {
4056            Slog.e(TAG, "was about to create idmap for " + pkg.baseCodePath + " and " +
4057                    opkg.baseCodePath + " but target package has no known overlays");
4058            return false;
4059        }
4060        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4061        // TODO: generate idmap for split APKs
4062        if (mInstaller.idmap(pkg.baseCodePath, opkg.baseCodePath, sharedGid) != 0) {
4063            Slog.e(TAG, "Failed to generate idmap for " + pkg.baseCodePath + " and "
4064                    + opkg.baseCodePath);
4065            return false;
4066        }
4067        PackageParser.Package[] overlayArray =
4068            overlaySet.values().toArray(new PackageParser.Package[0]);
4069        Comparator<PackageParser.Package> cmp = new Comparator<PackageParser.Package>() {
4070            public int compare(PackageParser.Package p1, PackageParser.Package p2) {
4071                return p1.mOverlayPriority - p2.mOverlayPriority;
4072            }
4073        };
4074        Arrays.sort(overlayArray, cmp);
4075
4076        pkg.applicationInfo.resourceDirs = new String[overlayArray.length];
4077        int i = 0;
4078        for (PackageParser.Package p : overlayArray) {
4079            pkg.applicationInfo.resourceDirs[i++] = p.baseCodePath;
4080        }
4081        return true;
4082    }
4083
4084    private void scanDirLI(File dir, int parseFlags, int scanFlags, long currentTime) {
4085        final File[] files = dir.listFiles();
4086        if (ArrayUtils.isEmpty(files)) {
4087            Log.d(TAG, "No files in app dir " + dir);
4088            return;
4089        }
4090
4091        if (DEBUG_PACKAGE_SCANNING) {
4092            Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
4093                    + " flags=0x" + Integer.toHexString(parseFlags));
4094        }
4095
4096        for (File file : files) {
4097            final boolean isPackage = (isApkFile(file) || file.isDirectory())
4098                    && !PackageInstallerService.isStageName(file.getName());
4099            if (!isPackage) {
4100                // Ignore entries which are not packages
4101                continue;
4102            }
4103            try {
4104                scanPackageLI(file, parseFlags | PackageParser.PARSE_MUST_BE_APK,
4105                        scanFlags, currentTime, null);
4106            } catch (PackageManagerException e) {
4107                Slog.w(TAG, "Failed to parse " + file + ": " + e.getMessage());
4108
4109                // Delete invalid userdata apps
4110                if ((parseFlags & PackageParser.PARSE_IS_SYSTEM) == 0 &&
4111                        e.error == PackageManager.INSTALL_FAILED_INVALID_APK) {
4112                    logCriticalInfo(Log.WARN, "Deleting invalid package at " + file);
4113                    if (file.isDirectory()) {
4114                        FileUtils.deleteContents(file);
4115                    }
4116                    file.delete();
4117                }
4118            }
4119        }
4120    }
4121
4122    private static File getSettingsProblemFile() {
4123        File dataDir = Environment.getDataDirectory();
4124        File systemDir = new File(dataDir, "system");
4125        File fname = new File(systemDir, "uiderrors.txt");
4126        return fname;
4127    }
4128
4129    static void reportSettingsProblem(int priority, String msg) {
4130        logCriticalInfo(priority, msg);
4131    }
4132
4133    static void logCriticalInfo(int priority, String msg) {
4134        Slog.println(priority, TAG, msg);
4135        EventLogTags.writePmCriticalInfo(msg);
4136        try {
4137            File fname = getSettingsProblemFile();
4138            FileOutputStream out = new FileOutputStream(fname, true);
4139            PrintWriter pw = new FastPrintWriter(out);
4140            SimpleDateFormat formatter = new SimpleDateFormat();
4141            String dateString = formatter.format(new Date(System.currentTimeMillis()));
4142            pw.println(dateString + ": " + msg);
4143            pw.close();
4144            FileUtils.setPermissions(
4145                    fname.toString(),
4146                    FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IROTH,
4147                    -1, -1);
4148        } catch (java.io.IOException e) {
4149        }
4150    }
4151
4152    private void collectCertificatesLI(PackageParser pp, PackageSetting ps,
4153            PackageParser.Package pkg, File srcFile, int parseFlags)
4154            throws PackageManagerException {
4155        if (ps != null
4156                && ps.codePath.equals(srcFile)
4157                && ps.timeStamp == srcFile.lastModified()
4158                && !isCompatSignatureUpdateNeeded(pkg)) {
4159            long mSigningKeySetId = ps.keySetData.getProperSigningKeySet();
4160            if (ps.signatures.mSignatures != null
4161                    && ps.signatures.mSignatures.length != 0
4162                    && mSigningKeySetId != PackageKeySetData.KEYSET_UNASSIGNED) {
4163                // Optimization: reuse the existing cached certificates
4164                // if the package appears to be unchanged.
4165                pkg.mSignatures = ps.signatures.mSignatures;
4166                KeySetManagerService ksms = mSettings.mKeySetManagerService;
4167                synchronized (mPackages) {
4168                    pkg.mSigningKeys = ksms.getPublicKeysFromKeySetLPr(mSigningKeySetId);
4169                }
4170                return;
4171            }
4172
4173            Slog.w(TAG, "PackageSetting for " + ps.name
4174                    + " is missing signatures.  Collecting certs again to recover them.");
4175        } else {
4176            Log.i(TAG, srcFile.toString() + " changed; collecting certs");
4177        }
4178
4179        try {
4180            pp.collectCertificates(pkg, parseFlags);
4181            pp.collectManifestDigest(pkg);
4182        } catch (PackageParserException e) {
4183            throw PackageManagerException.from(e);
4184        }
4185    }
4186
4187    /*
4188     *  Scan a package and return the newly parsed package.
4189     *  Returns null in case of errors and the error code is stored in mLastScanError
4190     */
4191    private PackageParser.Package scanPackageLI(File scanFile, int parseFlags, int scanFlags,
4192            long currentTime, UserHandle user) throws PackageManagerException {
4193        if (DEBUG_INSTALL) Slog.d(TAG, "Parsing: " + scanFile);
4194        parseFlags |= mDefParseFlags;
4195        PackageParser pp = new PackageParser();
4196        pp.setSeparateProcesses(mSeparateProcesses);
4197        pp.setOnlyCoreApps(mOnlyCore);
4198        pp.setDisplayMetrics(mMetrics);
4199
4200        if ((scanFlags & SCAN_TRUSTED_OVERLAY) != 0) {
4201            parseFlags |= PackageParser.PARSE_TRUSTED_OVERLAY;
4202        }
4203
4204        final PackageParser.Package pkg;
4205        try {
4206            pkg = pp.parsePackage(scanFile, parseFlags);
4207        } catch (PackageParserException e) {
4208            throw PackageManagerException.from(e);
4209        }
4210
4211        PackageSetting ps = null;
4212        PackageSetting updatedPkg;
4213        // reader
4214        synchronized (mPackages) {
4215            // Look to see if we already know about this package.
4216            String oldName = mSettings.mRenamedPackages.get(pkg.packageName);
4217            if (pkg.mOriginalPackages != null && pkg.mOriginalPackages.contains(oldName)) {
4218                // This package has been renamed to its original name.  Let's
4219                // use that.
4220                ps = mSettings.peekPackageLPr(oldName);
4221            }
4222            // If there was no original package, see one for the real package name.
4223            if (ps == null) {
4224                ps = mSettings.peekPackageLPr(pkg.packageName);
4225            }
4226            // Check to see if this package could be hiding/updating a system
4227            // package.  Must look for it either under the original or real
4228            // package name depending on our state.
4229            updatedPkg = mSettings.getDisabledSystemPkgLPr(ps != null ? ps.name : pkg.packageName);
4230            if (DEBUG_INSTALL && updatedPkg != null) Slog.d(TAG, "updatedPkg = " + updatedPkg);
4231        }
4232        boolean updatedPkgBetter = false;
4233        // First check if this is a system package that may involve an update
4234        if (updatedPkg != null && (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
4235            if (ps != null && !ps.codePath.equals(scanFile)) {
4236                // The path has changed from what was last scanned...  check the
4237                // version of the new path against what we have stored to determine
4238                // what to do.
4239                if (DEBUG_INSTALL) Slog.d(TAG, "Path changing from " + ps.codePath);
4240                if (pkg.mVersionCode < ps.versionCode) {
4241                    // The system package has been updated and the code path does not match
4242                    // Ignore entry. Skip it.
4243                    logCriticalInfo(Log.INFO, "Package " + ps.name + " at " + scanFile
4244                            + " ignored: updated version " + ps.versionCode
4245                            + " better than this " + pkg.mVersionCode);
4246                    if (!updatedPkg.codePath.equals(scanFile)) {
4247                        Slog.w(PackageManagerService.TAG, "Code path for hidden system pkg : "
4248                                + ps.name + " changing from " + updatedPkg.codePathString
4249                                + " to " + scanFile);
4250                        updatedPkg.codePath = scanFile;
4251                        updatedPkg.codePathString = scanFile.toString();
4252                        // This is the point at which we know that the system-disk APK
4253                        // for this package has moved during a reboot (e.g. due to an OTA),
4254                        // so we need to reevaluate it for privilege policy.
4255                        if (locationIsPrivileged(scanFile)) {
4256                            updatedPkg.pkgFlags |= ApplicationInfo.FLAG_PRIVILEGED;
4257                        }
4258                    }
4259                    updatedPkg.pkg = pkg;
4260                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE, null);
4261                } else {
4262                    // The current app on the system partition is better than
4263                    // what we have updated to on the data partition; switch
4264                    // back to the system partition version.
4265                    // At this point, its safely assumed that package installation for
4266                    // apps in system partition will go through. If not there won't be a working
4267                    // version of the app
4268                    // writer
4269                    synchronized (mPackages) {
4270                        // Just remove the loaded entries from package lists.
4271                        mPackages.remove(ps.name);
4272                    }
4273
4274                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4275                            + " reverting from " + ps.codePathString
4276                            + ": new version " + pkg.mVersionCode
4277                            + " better than installed " + ps.versionCode);
4278
4279                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4280                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4281                            getAppDexInstructionSets(ps));
4282                    synchronized (mInstallLock) {
4283                        args.cleanUpResourcesLI();
4284                    }
4285                    synchronized (mPackages) {
4286                        mSettings.enableSystemPackageLPw(ps.name);
4287                    }
4288                    updatedPkgBetter = true;
4289                }
4290            }
4291        }
4292
4293        if (updatedPkg != null) {
4294            // An updated system app will not have the PARSE_IS_SYSTEM flag set
4295            // initially
4296            parseFlags |= PackageParser.PARSE_IS_SYSTEM;
4297
4298            // An updated privileged app will not have the PARSE_IS_PRIVILEGED
4299            // flag set initially
4300            if ((updatedPkg.pkgFlags & ApplicationInfo.FLAG_PRIVILEGED) != 0) {
4301                parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
4302            }
4303        }
4304
4305        // Verify certificates against what was last scanned
4306        collectCertificatesLI(pp, ps, pkg, scanFile, parseFlags);
4307
4308        /*
4309         * A new system app appeared, but we already had a non-system one of the
4310         * same name installed earlier.
4311         */
4312        boolean shouldHideSystemApp = false;
4313        if (updatedPkg == null && ps != null
4314                && (parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) != 0 && !isSystemApp(ps)) {
4315            /*
4316             * Check to make sure the signatures match first. If they don't,
4317             * wipe the installed application and its data.
4318             */
4319            if (compareSignatures(ps.signatures.mSignatures, pkg.mSignatures)
4320                    != PackageManager.SIGNATURE_MATCH) {
4321                logCriticalInfo(Log.WARN, "Package " + ps.name + " appeared on system, but"
4322                        + " signatures don't match existing userdata copy; removing");
4323                deletePackageLI(pkg.packageName, null, true, null, null, 0, null, false);
4324                ps = null;
4325            } else {
4326                /*
4327                 * If the newly-added system app is an older version than the
4328                 * already installed version, hide it. It will be scanned later
4329                 * and re-added like an update.
4330                 */
4331                if (pkg.mVersionCode < ps.versionCode) {
4332                    shouldHideSystemApp = true;
4333                    logCriticalInfo(Log.INFO, "Package " + ps.name + " appeared at " + scanFile
4334                            + " but new version " + pkg.mVersionCode + " better than installed "
4335                            + ps.versionCode + "; hiding system");
4336                } else {
4337                    /*
4338                     * The newly found system app is a newer version that the
4339                     * one previously installed. Simply remove the
4340                     * already-installed application and replace it with our own
4341                     * while keeping the application data.
4342                     */
4343                    logCriticalInfo(Log.WARN, "Package " + ps.name + " at " + scanFile
4344                            + " reverting from " + ps.codePathString + ": new version "
4345                            + pkg.mVersionCode + " better than installed " + ps.versionCode);
4346                    InstallArgs args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
4347                            ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
4348                            getAppDexInstructionSets(ps));
4349                    synchronized (mInstallLock) {
4350                        args.cleanUpResourcesLI();
4351                    }
4352                }
4353            }
4354        }
4355
4356        // The apk is forward locked (not public) if its code and resources
4357        // are kept in different files. (except for app in either system or
4358        // vendor path).
4359        // TODO grab this value from PackageSettings
4360        if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
4361            if (ps != null && !ps.codePath.equals(ps.resourcePath)) {
4362                parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
4363            }
4364        }
4365
4366        // TODO: extend to support forward-locked splits
4367        String resourcePath = null;
4368        String baseResourcePath = null;
4369        if ((parseFlags & PackageParser.PARSE_FORWARD_LOCK) != 0 && !updatedPkgBetter) {
4370            if (ps != null && ps.resourcePathString != null) {
4371                resourcePath = ps.resourcePathString;
4372                baseResourcePath = ps.resourcePathString;
4373            } else {
4374                // Should not happen at all. Just log an error.
4375                Slog.e(TAG, "Resource path not set for pkg : " + pkg.packageName);
4376            }
4377        } else {
4378            resourcePath = pkg.codePath;
4379            baseResourcePath = pkg.baseCodePath;
4380        }
4381
4382        // Set application objects path explicitly.
4383        pkg.applicationInfo.setCodePath(pkg.codePath);
4384        pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
4385        pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
4386        pkg.applicationInfo.setResourcePath(resourcePath);
4387        pkg.applicationInfo.setBaseResourcePath(baseResourcePath);
4388        pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
4389
4390        // Note that we invoke the following method only if we are about to unpack an application
4391        PackageParser.Package scannedPkg = scanPackageLI(pkg, parseFlags, scanFlags
4392                | SCAN_UPDATE_SIGNATURE, currentTime, user);
4393
4394        /*
4395         * If the system app should be overridden by a previously installed
4396         * data, hide the system app now and let the /data/app scan pick it up
4397         * again.
4398         */
4399        if (shouldHideSystemApp) {
4400            synchronized (mPackages) {
4401                /*
4402                 * We have to grant systems permissions before we hide, because
4403                 * grantPermissions will assume the package update is trying to
4404                 * expand its permissions.
4405                 */
4406                grantPermissionsLPw(pkg, true, pkg.packageName);
4407                mSettings.disableSystemPackageLPw(pkg.packageName);
4408            }
4409        }
4410
4411        return scannedPkg;
4412    }
4413
4414    private static String fixProcessName(String defProcessName,
4415            String processName, int uid) {
4416        if (processName == null) {
4417            return defProcessName;
4418        }
4419        return processName;
4420    }
4421
4422    private void verifySignaturesLP(PackageSetting pkgSetting, PackageParser.Package pkg)
4423            throws PackageManagerException {
4424        if (pkgSetting.signatures.mSignatures != null) {
4425            // Already existing package. Make sure signatures match
4426            boolean match = compareSignatures(pkgSetting.signatures.mSignatures, pkg.mSignatures)
4427                    == PackageManager.SIGNATURE_MATCH;
4428            if (!match) {
4429                match = compareSignaturesCompat(pkgSetting.signatures, pkg)
4430                        == PackageManager.SIGNATURE_MATCH;
4431            }
4432            if (!match) {
4433                throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
4434                        + pkg.packageName + " signatures do not match the "
4435                        + "previously installed version; ignoring!");
4436            }
4437        }
4438
4439        // Check for shared user signatures
4440        if (pkgSetting.sharedUser != null && pkgSetting.sharedUser.signatures.mSignatures != null) {
4441            // Already existing package. Make sure signatures match
4442            boolean match = compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
4443                    pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
4444            if (!match) {
4445                match = compareSignaturesCompat(pkgSetting.sharedUser.signatures, pkg)
4446                        == PackageManager.SIGNATURE_MATCH;
4447            }
4448            if (!match) {
4449                throw new PackageManagerException(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
4450                        "Package " + pkg.packageName
4451                        + " has no signatures that match those in shared user "
4452                        + pkgSetting.sharedUser.name + "; ignoring!");
4453            }
4454        }
4455    }
4456
4457    /**
4458     * Enforces that only the system UID or root's UID can call a method exposed
4459     * via Binder.
4460     *
4461     * @param message used as message if SecurityException is thrown
4462     * @throws SecurityException if the caller is not system or root
4463     */
4464    private static final void enforceSystemOrRoot(String message) {
4465        final int uid = Binder.getCallingUid();
4466        if (uid != Process.SYSTEM_UID && uid != 0) {
4467            throw new SecurityException(message);
4468        }
4469    }
4470
4471    @Override
4472    public void performBootDexOpt() {
4473        enforceSystemOrRoot("Only the system can request dexopt be performed");
4474
4475        final HashSet<PackageParser.Package> pkgs;
4476        synchronized (mPackages) {
4477            pkgs = mDeferredDexOpt;
4478            mDeferredDexOpt = null;
4479        }
4480
4481        if (pkgs != null) {
4482            // Sort apps by importance for dexopt ordering. Important apps are given more priority
4483            // in case the device runs out of space.
4484            ArrayList<PackageParser.Package> sortedPkgs = new ArrayList<PackageParser.Package>();
4485            // Give priority to core apps.
4486            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4487                PackageParser.Package pkg = it.next();
4488                if (pkg.coreApp) {
4489                    if (DEBUG_DEXOPT) {
4490                        Log.i(TAG, "Adding core app " + sortedPkgs.size() + ": " + pkg.packageName);
4491                    }
4492                    sortedPkgs.add(pkg);
4493                    it.remove();
4494                }
4495            }
4496            // Give priority to system apps that listen for pre boot complete.
4497            Intent intent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
4498            HashSet<String> pkgNames = getPackageNamesForIntent(intent);
4499            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4500                PackageParser.Package pkg = it.next();
4501                if (pkgNames.contains(pkg.packageName)) {
4502                    if (DEBUG_DEXOPT) {
4503                        Log.i(TAG, "Adding pre boot system app " + sortedPkgs.size() + ": " + pkg.packageName);
4504                    }
4505                    sortedPkgs.add(pkg);
4506                    it.remove();
4507                }
4508            }
4509            // Give priority to system apps.
4510            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4511                PackageParser.Package pkg = it.next();
4512                if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
4513                    if (DEBUG_DEXOPT) {
4514                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
4515                    }
4516                    sortedPkgs.add(pkg);
4517                    it.remove();
4518                }
4519            }
4520            // Give priority to updated system apps.
4521            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4522                PackageParser.Package pkg = it.next();
4523                if (isUpdatedSystemApp(pkg)) {
4524                    if (DEBUG_DEXOPT) {
4525                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
4526                    }
4527                    sortedPkgs.add(pkg);
4528                    it.remove();
4529                }
4530            }
4531            // Give priority to apps that listen for boot complete.
4532            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
4533            pkgNames = getPackageNamesForIntent(intent);
4534            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
4535                PackageParser.Package pkg = it.next();
4536                if (pkgNames.contains(pkg.packageName)) {
4537                    if (DEBUG_DEXOPT) {
4538                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
4539                    }
4540                    sortedPkgs.add(pkg);
4541                    it.remove();
4542                }
4543            }
4544            // Filter out packages that aren't recently used.
4545            filterRecentlyUsedApps(pkgs);
4546            // Add all remaining apps.
4547            for (PackageParser.Package pkg : pkgs) {
4548                if (DEBUG_DEXOPT) {
4549                    Log.i(TAG, "Adding app " + sortedPkgs.size() + ": " + pkg.packageName);
4550                }
4551                sortedPkgs.add(pkg);
4552            }
4553
4554            int i = 0;
4555            int total = sortedPkgs.size();
4556            File dataDir = Environment.getDataDirectory();
4557            long lowThreshold = StorageManager.from(mContext).getStorageLowBytes(dataDir);
4558            if (lowThreshold == 0) {
4559                throw new IllegalStateException("Invalid low memory threshold");
4560            }
4561            for (PackageParser.Package pkg : sortedPkgs) {
4562                long usableSpace = dataDir.getUsableSpace();
4563                if (usableSpace < lowThreshold) {
4564                    Log.w(TAG, "Not running dexopt on remaining apps due to low memory: " + usableSpace);
4565                    break;
4566                }
4567                performBootDexOpt(pkg, ++i, total);
4568            }
4569        }
4570    }
4571
4572    private void filterRecentlyUsedApps(HashSet<PackageParser.Package> pkgs) {
4573        // Filter out packages that aren't recently used.
4574        //
4575        // The exception is first boot of a non-eng device (aka !mLazyDexOpt), which
4576        // should do a full dexopt.
4577        if (mLazyDexOpt || (!isFirstBoot() && mPackageUsage.isHistoricalPackageUsageAvailable())) {
4578            // TODO: add a property to control this?
4579            long dexOptLRUThresholdInMinutes;
4580            if (mLazyDexOpt) {
4581                dexOptLRUThresholdInMinutes = 30; // only last 30 minutes of apps for eng builds.
4582            } else {
4583                dexOptLRUThresholdInMinutes = 7 * 24 * 60; // apps used in the 7 days for users.
4584            }
4585            long dexOptLRUThresholdInMills = dexOptLRUThresholdInMinutes * 60 * 1000;
4586
4587            int total = pkgs.size();
4588            int skipped = 0;
4589            long now = System.currentTimeMillis();
4590            for (Iterator<PackageParser.Package> i = pkgs.iterator(); i.hasNext();) {
4591                PackageParser.Package pkg = i.next();
4592                long then = pkg.mLastPackageUsageTimeInMills;
4593                if (then + dexOptLRUThresholdInMills < now) {
4594                    if (DEBUG_DEXOPT) {
4595                        Log.i(TAG, "Skipping dexopt of " + pkg.packageName + " last resumed: " +
4596                              ((then == 0) ? "never" : new Date(then)));
4597                    }
4598                    i.remove();
4599                    skipped++;
4600                }
4601            }
4602            if (DEBUG_DEXOPT) {
4603                Log.i(TAG, "Skipped optimizing " + skipped + " of " + total);
4604            }
4605        }
4606    }
4607
4608    private HashSet<String> getPackageNamesForIntent(Intent intent) {
4609        List<ResolveInfo> ris = null;
4610        try {
4611            ris = AppGlobals.getPackageManager().queryIntentReceivers(
4612                    intent, null, 0, UserHandle.USER_OWNER);
4613        } catch (RemoteException e) {
4614        }
4615        HashSet<String> pkgNames = new HashSet<String>();
4616        if (ris != null) {
4617            for (ResolveInfo ri : ris) {
4618                pkgNames.add(ri.activityInfo.packageName);
4619            }
4620        }
4621        return pkgNames;
4622    }
4623
4624    private void performBootDexOpt(PackageParser.Package pkg, int curr, int total) {
4625        if (DEBUG_DEXOPT) {
4626            Log.i(TAG, "Optimizing app " + curr + " of " + total + ": " + pkg.packageName);
4627        }
4628        if (!isFirstBoot()) {
4629            try {
4630                ActivityManagerNative.getDefault().showBootMessage(
4631                        mContext.getResources().getString(R.string.android_upgrading_apk,
4632                                curr, total), true);
4633            } catch (RemoteException e) {
4634            }
4635        }
4636        PackageParser.Package p = pkg;
4637        synchronized (mInstallLock) {
4638            performDexOptLI(p, null /* instruction sets */, false /* force dex */,
4639                            false /* defer */, true /* include dependencies */);
4640        }
4641    }
4642
4643    @Override
4644    public boolean performDexOptIfNeeded(String packageName, String instructionSet) {
4645        return performDexOpt(packageName, instructionSet, false);
4646    }
4647
4648    private static String getPrimaryInstructionSet(ApplicationInfo info) {
4649        if (info.primaryCpuAbi == null) {
4650            return getPreferredInstructionSet();
4651        }
4652
4653        return VMRuntime.getInstructionSet(info.primaryCpuAbi);
4654    }
4655
4656    public boolean performDexOpt(String packageName, String instructionSet, boolean backgroundDexopt) {
4657        boolean dexopt = mLazyDexOpt || backgroundDexopt;
4658        boolean updateUsage = !backgroundDexopt;  // Don't update usage if this is just a backgroundDexopt
4659        if (!dexopt && !updateUsage) {
4660            // We aren't going to dexopt or update usage, so bail early.
4661            return false;
4662        }
4663        PackageParser.Package p;
4664        final String targetInstructionSet;
4665        synchronized (mPackages) {
4666            p = mPackages.get(packageName);
4667            if (p == null) {
4668                return false;
4669            }
4670            if (updateUsage) {
4671                p.mLastPackageUsageTimeInMills = System.currentTimeMillis();
4672            }
4673            mPackageUsage.write(false);
4674            if (!dexopt) {
4675                // We aren't going to dexopt, so bail early.
4676                return false;
4677            }
4678
4679            targetInstructionSet = instructionSet != null ? instructionSet :
4680                    getPrimaryInstructionSet(p.applicationInfo);
4681            if (p.mDexOptPerformed.contains(targetInstructionSet)) {
4682                return false;
4683            }
4684        }
4685
4686        synchronized (mInstallLock) {
4687            final String[] instructionSets = new String[] { targetInstructionSet };
4688            return performDexOptLI(p, instructionSets, false /* force dex */, false /* defer */,
4689                    true /* include dependencies */) == DEX_OPT_PERFORMED;
4690        }
4691    }
4692
4693    public HashSet<String> getPackagesThatNeedDexOpt() {
4694        HashSet<String> pkgs = null;
4695        synchronized (mPackages) {
4696            for (PackageParser.Package p : mPackages.values()) {
4697                if (DEBUG_DEXOPT) {
4698                    Log.i(TAG, p.packageName + " mDexOptPerformed=" + p.mDexOptPerformed.toArray());
4699                }
4700                if (!p.mDexOptPerformed.isEmpty()) {
4701                    continue;
4702                }
4703                if (pkgs == null) {
4704                    pkgs = new HashSet<String>();
4705                }
4706                pkgs.add(p.packageName);
4707            }
4708        }
4709        return pkgs;
4710    }
4711
4712    public void shutdown() {
4713        mPackageUsage.write(true);
4714    }
4715
4716    private void performDexOptLibsLI(ArrayList<String> libs, String[] instructionSets,
4717             boolean forceDex, boolean defer, HashSet<String> done) {
4718        for (int i=0; i<libs.size(); i++) {
4719            PackageParser.Package libPkg;
4720            String libName;
4721            synchronized (mPackages) {
4722                libName = libs.get(i);
4723                SharedLibraryEntry lib = mSharedLibraries.get(libName);
4724                if (lib != null && lib.apk != null) {
4725                    libPkg = mPackages.get(lib.apk);
4726                } else {
4727                    libPkg = null;
4728                }
4729            }
4730            if (libPkg != null && !done.contains(libName)) {
4731                performDexOptLI(libPkg, instructionSets, forceDex, defer, done);
4732            }
4733        }
4734    }
4735
4736    static final int DEX_OPT_SKIPPED = 0;
4737    static final int DEX_OPT_PERFORMED = 1;
4738    static final int DEX_OPT_DEFERRED = 2;
4739    static final int DEX_OPT_FAILED = -1;
4740
4741    private int performDexOptLI(PackageParser.Package pkg, String[] targetInstructionSets,
4742            boolean forceDex, boolean defer, HashSet<String> done) {
4743        final String[] instructionSets = targetInstructionSets != null ?
4744                targetInstructionSets : getAppDexInstructionSets(pkg.applicationInfo);
4745
4746        if (done != null) {
4747            done.add(pkg.packageName);
4748            if (pkg.usesLibraries != null) {
4749                performDexOptLibsLI(pkg.usesLibraries, instructionSets, forceDex, defer, done);
4750            }
4751            if (pkg.usesOptionalLibraries != null) {
4752                performDexOptLibsLI(pkg.usesOptionalLibraries, instructionSets, forceDex, defer, done);
4753            }
4754        }
4755
4756        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) == 0) {
4757            return DEX_OPT_SKIPPED;
4758        }
4759
4760        final boolean vmSafeMode = (pkg.applicationInfo.flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
4761
4762        final List<String> paths = pkg.getAllCodePathsExcludingResourceOnly();
4763        boolean performedDexOpt = false;
4764        // There are three basic cases here:
4765        // 1.) we need to dexopt, either because we are forced or it is needed
4766        // 2.) we are defering a needed dexopt
4767        // 3.) we are skipping an unneeded dexopt
4768        final String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
4769        for (String dexCodeInstructionSet : dexCodeInstructionSets) {
4770            if (!forceDex && pkg.mDexOptPerformed.contains(dexCodeInstructionSet)) {
4771                continue;
4772            }
4773
4774            for (String path : paths) {
4775                try {
4776                    // This will return DEXOPT_NEEDED if we either cannot find any odex file for this
4777                    // patckage or the one we find does not match the image checksum (i.e. it was
4778                    // compiled against an old image). It will return PATCHOAT_NEEDED if we can find a
4779                    // odex file and it matches the checksum of the image but not its base address,
4780                    // meaning we need to move it.
4781                    final byte isDexOptNeeded = DexFile.isDexOptNeededInternal(path,
4782                            pkg.packageName, dexCodeInstructionSet, defer);
4783                    if (forceDex || (!defer && isDexOptNeeded == DexFile.DEXOPT_NEEDED)) {
4784                        Log.i(TAG, "Running dexopt on: " + path + " pkg="
4785                                + pkg.applicationInfo.packageName + " isa=" + dexCodeInstructionSet
4786                                + " vmSafeMode=" + vmSafeMode);
4787                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4788                        final int ret = mInstaller.dexopt(path, sharedGid, !isForwardLocked(pkg),
4789                                pkg.packageName, dexCodeInstructionSet, vmSafeMode);
4790
4791                        if (ret < 0) {
4792                            // Don't bother running dexopt again if we failed, it will probably
4793                            // just result in an error again. Also, don't bother dexopting for other
4794                            // paths & ISAs.
4795                            return DEX_OPT_FAILED;
4796                        }
4797
4798                        performedDexOpt = true;
4799                    } else if (!defer && isDexOptNeeded == DexFile.PATCHOAT_NEEDED) {
4800                        Log.i(TAG, "Running patchoat on: " + pkg.applicationInfo.packageName);
4801                        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
4802                        final int ret = mInstaller.patchoat(path, sharedGid, !isForwardLocked(pkg),
4803                                pkg.packageName, dexCodeInstructionSet);
4804
4805                        if (ret < 0) {
4806                            // Don't bother running patchoat again if we failed, it will probably
4807                            // just result in an error again. Also, don't bother dexopting for other
4808                            // paths & ISAs.
4809                            return DEX_OPT_FAILED;
4810                        }
4811
4812                        performedDexOpt = true;
4813                    }
4814
4815                    // We're deciding to defer a needed dexopt. Don't bother dexopting for other
4816                    // paths and instruction sets. We'll deal with them all together when we process
4817                    // our list of deferred dexopts.
4818                    if (defer && isDexOptNeeded != DexFile.UP_TO_DATE) {
4819                        if (mDeferredDexOpt == null) {
4820                            mDeferredDexOpt = new HashSet<PackageParser.Package>();
4821                        }
4822                        mDeferredDexOpt.add(pkg);
4823                        return DEX_OPT_DEFERRED;
4824                    }
4825                } catch (FileNotFoundException e) {
4826                    Slog.w(TAG, "Apk not found for dexopt: " + path);
4827                    return DEX_OPT_FAILED;
4828                } catch (IOException e) {
4829                    Slog.w(TAG, "IOException reading apk: " + path, e);
4830                    return DEX_OPT_FAILED;
4831                } catch (StaleDexCacheError e) {
4832                    Slog.w(TAG, "StaleDexCacheError when reading apk: " + path, e);
4833                    return DEX_OPT_FAILED;
4834                } catch (Exception e) {
4835                    Slog.w(TAG, "Exception when doing dexopt : ", e);
4836                    return DEX_OPT_FAILED;
4837                }
4838            }
4839
4840            // At this point we haven't failed dexopt and we haven't deferred dexopt. We must
4841            // either have either succeeded dexopt, or have had isDexOptNeededInternal tell us
4842            // it isn't required. We therefore mark that this package doesn't need dexopt unless
4843            // it's forced. performedDexOpt will tell us whether we performed dex-opt or skipped
4844            // it.
4845            pkg.mDexOptPerformed.add(dexCodeInstructionSet);
4846        }
4847
4848        // If we've gotten here, we're sure that no error occurred and that we haven't
4849        // deferred dex-opt. We've either dex-opted one more paths or instruction sets or
4850        // we've skipped all of them because they are up to date. In both cases this
4851        // package doesn't need dexopt any longer.
4852        return performedDexOpt ? DEX_OPT_PERFORMED : DEX_OPT_SKIPPED;
4853    }
4854
4855    private static String[] getAppDexInstructionSets(ApplicationInfo info) {
4856        if (info.primaryCpuAbi != null) {
4857            if (info.secondaryCpuAbi != null) {
4858                return new String[] {
4859                        VMRuntime.getInstructionSet(info.primaryCpuAbi),
4860                        VMRuntime.getInstructionSet(info.secondaryCpuAbi) };
4861            } else {
4862                return new String[] {
4863                        VMRuntime.getInstructionSet(info.primaryCpuAbi) };
4864            }
4865        }
4866
4867        return new String[] { getPreferredInstructionSet() };
4868    }
4869
4870    private static String[] getAppDexInstructionSets(PackageSetting ps) {
4871        if (ps.primaryCpuAbiString != null) {
4872            if (ps.secondaryCpuAbiString != null) {
4873                return new String[] {
4874                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString),
4875                        VMRuntime.getInstructionSet(ps.secondaryCpuAbiString) };
4876            } else {
4877                return new String[] {
4878                        VMRuntime.getInstructionSet(ps.primaryCpuAbiString) };
4879            }
4880        }
4881
4882        return new String[] { getPreferredInstructionSet() };
4883    }
4884
4885    private static String getPreferredInstructionSet() {
4886        if (sPreferredInstructionSet == null) {
4887            sPreferredInstructionSet = VMRuntime.getInstructionSet(Build.SUPPORTED_ABIS[0]);
4888        }
4889
4890        return sPreferredInstructionSet;
4891    }
4892
4893    private static List<String> getAllInstructionSets() {
4894        final String[] allAbis = Build.SUPPORTED_ABIS;
4895        final List<String> allInstructionSets = new ArrayList<String>(allAbis.length);
4896
4897        for (String abi : allAbis) {
4898            final String instructionSet = VMRuntime.getInstructionSet(abi);
4899            if (!allInstructionSets.contains(instructionSet)) {
4900                allInstructionSets.add(instructionSet);
4901            }
4902        }
4903
4904        return allInstructionSets;
4905    }
4906
4907    /**
4908     * Returns the instruction set that should be used to compile dex code. In the presence of
4909     * a native bridge this might be different than the one shared libraries use.
4910     */
4911    private static String getDexCodeInstructionSet(String sharedLibraryIsa) {
4912        String dexCodeIsa = SystemProperties.get("ro.dalvik.vm.isa." + sharedLibraryIsa);
4913        return (dexCodeIsa.isEmpty() ? sharedLibraryIsa : dexCodeIsa);
4914    }
4915
4916    private static String[] getDexCodeInstructionSets(String[] instructionSets) {
4917        HashSet<String> dexCodeInstructionSets = new HashSet<String>(instructionSets.length);
4918        for (String instructionSet : instructionSets) {
4919            dexCodeInstructionSets.add(getDexCodeInstructionSet(instructionSet));
4920        }
4921        return dexCodeInstructionSets.toArray(new String[dexCodeInstructionSets.size()]);
4922    }
4923
4924    /**
4925     * Returns deduplicated list of supported instructions for dex code.
4926     */
4927    public static String[] getAllDexCodeInstructionSets() {
4928        String[] supportedInstructionSets = new String[Build.SUPPORTED_ABIS.length];
4929        for (int i = 0; i < supportedInstructionSets.length; i++) {
4930            String abi = Build.SUPPORTED_ABIS[i];
4931            supportedInstructionSets[i] = VMRuntime.getInstructionSet(abi);
4932        }
4933        return getDexCodeInstructionSets(supportedInstructionSets);
4934    }
4935
4936    @Override
4937    public void forceDexOpt(String packageName) {
4938        enforceSystemOrRoot("forceDexOpt");
4939
4940        PackageParser.Package pkg;
4941        synchronized (mPackages) {
4942            pkg = mPackages.get(packageName);
4943            if (pkg == null) {
4944                throw new IllegalArgumentException("Missing package: " + packageName);
4945            }
4946        }
4947
4948        synchronized (mInstallLock) {
4949            final String[] instructionSets = new String[] {
4950                    getPrimaryInstructionSet(pkg.applicationInfo) };
4951            final int res = performDexOptLI(pkg, instructionSets, true, false, true);
4952            if (res != DEX_OPT_PERFORMED) {
4953                throw new IllegalStateException("Failed to dexopt: " + res);
4954            }
4955        }
4956    }
4957
4958    private int performDexOptLI(PackageParser.Package pkg, String[] instructionSets,
4959                                boolean forceDex, boolean defer, boolean inclDependencies) {
4960        HashSet<String> done;
4961        if (inclDependencies && (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null)) {
4962            done = new HashSet<String>();
4963            done.add(pkg.packageName);
4964        } else {
4965            done = null;
4966        }
4967        return performDexOptLI(pkg, instructionSets,  forceDex, defer, done);
4968    }
4969
4970    private boolean verifyPackageUpdateLPr(PackageSetting oldPkg, PackageParser.Package newPkg) {
4971        if ((oldPkg.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0) {
4972            Slog.w(TAG, "Unable to update from " + oldPkg.name
4973                    + " to " + newPkg.packageName
4974                    + ": old package not in system partition");
4975            return false;
4976        } else if (mPackages.get(oldPkg.name) != null) {
4977            Slog.w(TAG, "Unable to update from " + oldPkg.name
4978                    + " to " + newPkg.packageName
4979                    + ": old package still exists");
4980            return false;
4981        }
4982        return true;
4983    }
4984
4985    File getDataPathForUser(int userId) {
4986        return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId);
4987    }
4988
4989    private File getDataPathForPackage(String packageName, int userId) {
4990        /*
4991         * Until we fully support multiple users, return the directory we
4992         * previously would have. The PackageManagerTests will need to be
4993         * revised when this is changed back..
4994         */
4995        if (userId == 0) {
4996            return new File(mAppDataDir, packageName);
4997        } else {
4998            return new File(mUserAppDataDir.getAbsolutePath() + File.separator + userId
4999                + File.separator + packageName);
5000        }
5001    }
5002
5003    private int createDataDirsLI(String packageName, int uid, String seinfo) {
5004        int[] users = sUserManager.getUserIds();
5005        int res = mInstaller.install(packageName, uid, uid, seinfo);
5006        if (res < 0) {
5007            return res;
5008        }
5009        for (int user : users) {
5010            if (user != 0) {
5011                res = mInstaller.createUserData(packageName,
5012                        UserHandle.getUid(user, uid), user, seinfo);
5013                if (res < 0) {
5014                    return res;
5015                }
5016            }
5017        }
5018        return res;
5019    }
5020
5021    private int removeDataDirsLI(String packageName) {
5022        int[] users = sUserManager.getUserIds();
5023        int res = 0;
5024        for (int user : users) {
5025            int resInner = mInstaller.remove(packageName, user);
5026            if (resInner < 0) {
5027                res = resInner;
5028            }
5029        }
5030
5031        return res;
5032    }
5033
5034    private int deleteCodeCacheDirsLI(String packageName) {
5035        int[] users = sUserManager.getUserIds();
5036        int res = 0;
5037        for (int user : users) {
5038            int resInner = mInstaller.deleteCodeCacheFiles(packageName, user);
5039            if (resInner < 0) {
5040                res = resInner;
5041            }
5042        }
5043        return res;
5044    }
5045
5046    private void addSharedLibraryLPw(ArraySet<String> usesLibraryFiles, SharedLibraryEntry file,
5047            PackageParser.Package changingLib) {
5048        if (file.path != null) {
5049            usesLibraryFiles.add(file.path);
5050            return;
5051        }
5052        PackageParser.Package p = mPackages.get(file.apk);
5053        if (changingLib != null && changingLib.packageName.equals(file.apk)) {
5054            // If we are doing this while in the middle of updating a library apk,
5055            // then we need to make sure to use that new apk for determining the
5056            // dependencies here.  (We haven't yet finished committing the new apk
5057            // to the package manager state.)
5058            if (p == null || p.packageName.equals(changingLib.packageName)) {
5059                p = changingLib;
5060            }
5061        }
5062        if (p != null) {
5063            usesLibraryFiles.addAll(p.getAllCodePaths());
5064        }
5065    }
5066
5067    private void updateSharedLibrariesLPw(PackageParser.Package pkg,
5068            PackageParser.Package changingLib) throws PackageManagerException {
5069        if (pkg.usesLibraries != null || pkg.usesOptionalLibraries != null) {
5070            final ArraySet<String> usesLibraryFiles = new ArraySet<>();
5071            int N = pkg.usesLibraries != null ? pkg.usesLibraries.size() : 0;
5072            for (int i=0; i<N; i++) {
5073                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesLibraries.get(i));
5074                if (file == null) {
5075                    throw new PackageManagerException(INSTALL_FAILED_MISSING_SHARED_LIBRARY,
5076                            "Package " + pkg.packageName + " requires unavailable shared library "
5077                            + pkg.usesLibraries.get(i) + "; failing!");
5078                }
5079                addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5080            }
5081            N = pkg.usesOptionalLibraries != null ? pkg.usesOptionalLibraries.size() : 0;
5082            for (int i=0; i<N; i++) {
5083                final SharedLibraryEntry file = mSharedLibraries.get(pkg.usesOptionalLibraries.get(i));
5084                if (file == null) {
5085                    Slog.w(TAG, "Package " + pkg.packageName
5086                            + " desires unavailable shared library "
5087                            + pkg.usesOptionalLibraries.get(i) + "; ignoring!");
5088                } else {
5089                    addSharedLibraryLPw(usesLibraryFiles, file, changingLib);
5090                }
5091            }
5092            N = usesLibraryFiles.size();
5093            if (N > 0) {
5094                pkg.usesLibraryFiles = usesLibraryFiles.toArray(new String[N]);
5095            } else {
5096                pkg.usesLibraryFiles = null;
5097            }
5098        }
5099    }
5100
5101    private static boolean hasString(List<String> list, List<String> which) {
5102        if (list == null) {
5103            return false;
5104        }
5105        for (int i=list.size()-1; i>=0; i--) {
5106            for (int j=which.size()-1; j>=0; j--) {
5107                if (which.get(j).equals(list.get(i))) {
5108                    return true;
5109                }
5110            }
5111        }
5112        return false;
5113    }
5114
5115    private void updateAllSharedLibrariesLPw() {
5116        for (PackageParser.Package pkg : mPackages.values()) {
5117            try {
5118                updateSharedLibrariesLPw(pkg, null);
5119            } catch (PackageManagerException e) {
5120                Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5121            }
5122        }
5123    }
5124
5125    private ArrayList<PackageParser.Package> updateAllSharedLibrariesLPw(
5126            PackageParser.Package changingPkg) {
5127        ArrayList<PackageParser.Package> res = null;
5128        for (PackageParser.Package pkg : mPackages.values()) {
5129            if (hasString(pkg.usesLibraries, changingPkg.libraryNames)
5130                    || hasString(pkg.usesOptionalLibraries, changingPkg.libraryNames)) {
5131                if (res == null) {
5132                    res = new ArrayList<PackageParser.Package>();
5133                }
5134                res.add(pkg);
5135                try {
5136                    updateSharedLibrariesLPw(pkg, changingPkg);
5137                } catch (PackageManagerException e) {
5138                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
5139                }
5140            }
5141        }
5142        return res;
5143    }
5144
5145    /**
5146     * Derive the value of the {@code cpuAbiOverride} based on the provided
5147     * value and an optional stored value from the package settings.
5148     */
5149    private static String deriveAbiOverride(String abiOverride, PackageSetting settings) {
5150        String cpuAbiOverride = null;
5151
5152        if (NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(abiOverride)) {
5153            cpuAbiOverride = null;
5154        } else if (abiOverride != null) {
5155            cpuAbiOverride = abiOverride;
5156        } else if (settings != null) {
5157            cpuAbiOverride = settings.cpuAbiOverrideString;
5158        }
5159
5160        return cpuAbiOverride;
5161    }
5162
5163    private PackageParser.Package scanPackageLI(PackageParser.Package pkg, int parseFlags,
5164            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5165        boolean success = false;
5166        try {
5167            final PackageParser.Package res = scanPackageDirtyLI(pkg, parseFlags, scanFlags,
5168                    currentTime, user);
5169            success = true;
5170            return res;
5171        } finally {
5172            if (!success && (scanFlags & SCAN_DELETE_DATA_ON_FAILURES) != 0) {
5173                removeDataDirsLI(pkg.packageName);
5174            }
5175        }
5176    }
5177
5178    private PackageParser.Package scanPackageDirtyLI(PackageParser.Package pkg, int parseFlags,
5179            int scanFlags, long currentTime, UserHandle user) throws PackageManagerException {
5180        final File scanFile = new File(pkg.codePath);
5181        if (pkg.applicationInfo.getCodePath() == null ||
5182                pkg.applicationInfo.getResourcePath() == null) {
5183            // Bail out. The resource and code paths haven't been set.
5184            throw new PackageManagerException(INSTALL_FAILED_INVALID_APK,
5185                    "Code and resource paths haven't been set correctly");
5186        }
5187
5188        if ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0) {
5189            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_SYSTEM;
5190        } else {
5191            // Only allow system apps to be flagged as core apps.
5192            pkg.coreApp = false;
5193        }
5194
5195        if ((parseFlags&PackageParser.PARSE_IS_PRIVILEGED) != 0) {
5196            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_PRIVILEGED;
5197        }
5198
5199        if (mCustomResolverComponentName != null &&
5200                mCustomResolverComponentName.getPackageName().equals(pkg.packageName)) {
5201            setUpCustomResolverActivity(pkg);
5202        }
5203
5204        if (pkg.packageName.equals("android")) {
5205            synchronized (mPackages) {
5206                if (mAndroidApplication != null) {
5207                    Slog.w(TAG, "*************************************************");
5208                    Slog.w(TAG, "Core android package being redefined.  Skipping.");
5209                    Slog.w(TAG, " file=" + scanFile);
5210                    Slog.w(TAG, "*************************************************");
5211                    throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5212                            "Core android package being redefined.  Skipping.");
5213                }
5214
5215                // Set up information for our fall-back user intent resolution activity.
5216                mPlatformPackage = pkg;
5217                pkg.mVersionCode = mSdkVersion;
5218                mAndroidApplication = pkg.applicationInfo;
5219
5220                if (!mResolverReplaced) {
5221                    mResolveActivity.applicationInfo = mAndroidApplication;
5222                    mResolveActivity.name = ResolverActivity.class.getName();
5223                    mResolveActivity.packageName = mAndroidApplication.packageName;
5224                    mResolveActivity.processName = "system:ui";
5225                    mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
5226                    mResolveActivity.documentLaunchMode = ActivityInfo.DOCUMENT_LAUNCH_NEVER;
5227                    mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
5228                    mResolveActivity.theme = R.style.Theme_Holo_Dialog_Alert;
5229                    mResolveActivity.exported = true;
5230                    mResolveActivity.enabled = true;
5231                    mResolveInfo.activityInfo = mResolveActivity;
5232                    mResolveInfo.priority = 0;
5233                    mResolveInfo.preferredOrder = 0;
5234                    mResolveInfo.match = 0;
5235                    mResolveComponentName = new ComponentName(
5236                            mAndroidApplication.packageName, mResolveActivity.name);
5237                }
5238            }
5239        }
5240
5241        if (DEBUG_PACKAGE_SCANNING) {
5242            if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5243                Log.d(TAG, "Scanning package " + pkg.packageName);
5244        }
5245
5246        if (mPackages.containsKey(pkg.packageName)
5247                || mSharedLibraries.containsKey(pkg.packageName)) {
5248            throw new PackageManagerException(INSTALL_FAILED_DUPLICATE_PACKAGE,
5249                    "Application package " + pkg.packageName
5250                    + " already installed.  Skipping duplicate.");
5251        }
5252
5253        // Initialize package source and resource directories
5254        File destCodeFile = new File(pkg.applicationInfo.getCodePath());
5255        File destResourceFile = new File(pkg.applicationInfo.getResourcePath());
5256
5257        SharedUserSetting suid = null;
5258        PackageSetting pkgSetting = null;
5259
5260        if (!isSystemApp(pkg)) {
5261            // Only system apps can use these features.
5262            pkg.mOriginalPackages = null;
5263            pkg.mRealPackage = null;
5264            pkg.mAdoptPermissions = null;
5265        }
5266
5267        // writer
5268        synchronized (mPackages) {
5269            if (pkg.mSharedUserId != null) {
5270                suid = mSettings.getSharedUserLPw(pkg.mSharedUserId, 0, true);
5271                if (suid == null) {
5272                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5273                            "Creating application package " + pkg.packageName
5274                            + " for shared user failed");
5275                }
5276                if (DEBUG_PACKAGE_SCANNING) {
5277                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5278                        Log.d(TAG, "Shared UserID " + pkg.mSharedUserId + " (uid=" + suid.userId
5279                                + "): packages=" + suid.packages);
5280                }
5281            }
5282
5283            // Check if we are renaming from an original package name.
5284            PackageSetting origPackage = null;
5285            String realName = null;
5286            if (pkg.mOriginalPackages != null) {
5287                // This package may need to be renamed to a previously
5288                // installed name.  Let's check on that...
5289                final String renamed = mSettings.mRenamedPackages.get(pkg.mRealPackage);
5290                if (pkg.mOriginalPackages.contains(renamed)) {
5291                    // This package had originally been installed as the
5292                    // original name, and we have already taken care of
5293                    // transitioning to the new one.  Just update the new
5294                    // one to continue using the old name.
5295                    realName = pkg.mRealPackage;
5296                    if (!pkg.packageName.equals(renamed)) {
5297                        // Callers into this function may have already taken
5298                        // care of renaming the package; only do it here if
5299                        // it is not already done.
5300                        pkg.setPackageName(renamed);
5301                    }
5302
5303                } else {
5304                    for (int i=pkg.mOriginalPackages.size()-1; i>=0; i--) {
5305                        if ((origPackage = mSettings.peekPackageLPr(
5306                                pkg.mOriginalPackages.get(i))) != null) {
5307                            // We do have the package already installed under its
5308                            // original name...  should we use it?
5309                            if (!verifyPackageUpdateLPr(origPackage, pkg)) {
5310                                // New package is not compatible with original.
5311                                origPackage = null;
5312                                continue;
5313                            } else if (origPackage.sharedUser != null) {
5314                                // Make sure uid is compatible between packages.
5315                                if (!origPackage.sharedUser.name.equals(pkg.mSharedUserId)) {
5316                                    Slog.w(TAG, "Unable to migrate data from " + origPackage.name
5317                                            + " to " + pkg.packageName + ": old uid "
5318                                            + origPackage.sharedUser.name
5319                                            + " differs from " + pkg.mSharedUserId);
5320                                    origPackage = null;
5321                                    continue;
5322                                }
5323                            } else {
5324                                if (DEBUG_UPGRADE) Log.v(TAG, "Renaming new package "
5325                                        + pkg.packageName + " to old name " + origPackage.name);
5326                            }
5327                            break;
5328                        }
5329                    }
5330                }
5331            }
5332
5333            if (mTransferedPackages.contains(pkg.packageName)) {
5334                Slog.w(TAG, "Package " + pkg.packageName
5335                        + " was transferred to another, but its .apk remains");
5336            }
5337
5338            // Just create the setting, don't add it yet. For already existing packages
5339            // the PkgSetting exists already and doesn't have to be created.
5340            pkgSetting = mSettings.getPackageLPw(pkg, origPackage, realName, suid, destCodeFile,
5341                    destResourceFile, pkg.applicationInfo.nativeLibraryRootDir,
5342                    pkg.applicationInfo.primaryCpuAbi,
5343                    pkg.applicationInfo.secondaryCpuAbi,
5344                    pkg.applicationInfo.flags, user, false);
5345            if (pkgSetting == null) {
5346                throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5347                        "Creating application package " + pkg.packageName + " failed");
5348            }
5349
5350            if (pkgSetting.origPackage != null) {
5351                // If we are first transitioning from an original package,
5352                // fix up the new package's name now.  We need to do this after
5353                // looking up the package under its new name, so getPackageLP
5354                // can take care of fiddling things correctly.
5355                pkg.setPackageName(origPackage.name);
5356
5357                // File a report about this.
5358                String msg = "New package " + pkgSetting.realName
5359                        + " renamed to replace old package " + pkgSetting.name;
5360                reportSettingsProblem(Log.WARN, msg);
5361
5362                // Make a note of it.
5363                mTransferedPackages.add(origPackage.name);
5364
5365                // No longer need to retain this.
5366                pkgSetting.origPackage = null;
5367            }
5368
5369            if (realName != null) {
5370                // Make a note of it.
5371                mTransferedPackages.add(pkg.packageName);
5372            }
5373
5374            if (mSettings.isDisabledSystemPackageLPr(pkg.packageName)) {
5375                pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
5376            }
5377
5378            if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5379                // Check all shared libraries and map to their actual file path.
5380                // We only do this here for apps not on a system dir, because those
5381                // are the only ones that can fail an install due to this.  We
5382                // will take care of the system apps by updating all of their
5383                // library paths after the scan is done.
5384                updateSharedLibrariesLPw(pkg, null);
5385            }
5386
5387            if (mFoundPolicyFile) {
5388                SELinuxMMAC.assignSeinfoValue(pkg);
5389            }
5390
5391            pkg.applicationInfo.uid = pkgSetting.appId;
5392            pkg.mExtras = pkgSetting;
5393            if (!pkgSetting.keySetData.isUsingUpgradeKeySets() || pkgSetting.sharedUser != null) {
5394                try {
5395                    verifySignaturesLP(pkgSetting, pkg);
5396                } catch (PackageManagerException e) {
5397                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
5398                        throw e;
5399                    }
5400                    // The signature has changed, but this package is in the system
5401                    // image...  let's recover!
5402                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5403                    // However...  if this package is part of a shared user, but it
5404                    // doesn't match the signature of the shared user, let's fail.
5405                    // What this means is that you can't change the signatures
5406                    // associated with an overall shared user, which doesn't seem all
5407                    // that unreasonable.
5408                    if (pkgSetting.sharedUser != null) {
5409                        if (compareSignatures(pkgSetting.sharedUser.signatures.mSignatures,
5410                                              pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
5411                            throw new PackageManagerException(
5412                                    INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
5413                                            "Signature mismatch for shared user : "
5414                                            + pkgSetting.sharedUser);
5415                        }
5416                    }
5417                    // File a report about this.
5418                    String msg = "System package " + pkg.packageName
5419                        + " signature changed; retaining data.";
5420                    reportSettingsProblem(Log.WARN, msg);
5421                }
5422            } else {
5423                if (!checkUpgradeKeySetLP(pkgSetting, pkg)) {
5424                    throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "
5425                            + pkg.packageName + " upgrade keys do not match the "
5426                            + "previously installed version");
5427                } else {
5428                    // signatures may have changed as result of upgrade
5429                    pkgSetting.signatures.mSignatures = pkg.mSignatures;
5430                }
5431            }
5432            // Verify that this new package doesn't have any content providers
5433            // that conflict with existing packages.  Only do this if the
5434            // package isn't already installed, since we don't want to break
5435            // things that are installed.
5436            if ((scanFlags & SCAN_NEW_INSTALL) != 0) {
5437                final int N = pkg.providers.size();
5438                int i;
5439                for (i=0; i<N; i++) {
5440                    PackageParser.Provider p = pkg.providers.get(i);
5441                    if (p.info.authority != null) {
5442                        String names[] = p.info.authority.split(";");
5443                        for (int j = 0; j < names.length; j++) {
5444                            if (mProvidersByAuthority.containsKey(names[j])) {
5445                                PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
5446                                final String otherPackageName =
5447                                        ((other != null && other.getComponentName() != null) ?
5448                                                other.getComponentName().getPackageName() : "?");
5449                                throw new PackageManagerException(
5450                                        INSTALL_FAILED_CONFLICTING_PROVIDER,
5451                                                "Can't install because provider name " + names[j]
5452                                                + " (in package " + pkg.applicationInfo.packageName
5453                                                + ") is already used by " + otherPackageName);
5454                            }
5455                        }
5456                    }
5457                }
5458            }
5459
5460            if (pkg.mAdoptPermissions != null) {
5461                // This package wants to adopt ownership of permissions from
5462                // another package.
5463                for (int i = pkg.mAdoptPermissions.size() - 1; i >= 0; i--) {
5464                    final String origName = pkg.mAdoptPermissions.get(i);
5465                    final PackageSetting orig = mSettings.peekPackageLPr(origName);
5466                    if (orig != null) {
5467                        if (verifyPackageUpdateLPr(orig, pkg)) {
5468                            Slog.i(TAG, "Adopting permissions from " + origName + " to "
5469                                    + pkg.packageName);
5470                            mSettings.transferPermissionsLPw(origName, pkg.packageName);
5471                        }
5472                    }
5473                }
5474            }
5475        }
5476
5477        final String pkgName = pkg.packageName;
5478
5479        final long scanFileTime = scanFile.lastModified();
5480        final boolean forceDex = (scanFlags & SCAN_FORCE_DEX) != 0;
5481        pkg.applicationInfo.processName = fixProcessName(
5482                pkg.applicationInfo.packageName,
5483                pkg.applicationInfo.processName,
5484                pkg.applicationInfo.uid);
5485
5486        File dataPath;
5487        if (mPlatformPackage == pkg) {
5488            // The system package is special.
5489            dataPath = new File(Environment.getDataDirectory(), "system");
5490
5491            pkg.applicationInfo.dataDir = dataPath.getPath();
5492
5493        } else {
5494            // This is a normal package, need to make its data directory.
5495            dataPath = getDataPathForPackage(pkg.packageName, 0);
5496
5497            boolean uidError = false;
5498            if (dataPath.exists()) {
5499                int currentUid = 0;
5500                try {
5501                    StructStat stat = Os.stat(dataPath.getPath());
5502                    currentUid = stat.st_uid;
5503                } catch (ErrnoException e) {
5504                    Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);
5505                }
5506
5507                // If we have mismatched owners for the data path, we have a problem.
5508                if (currentUid != pkg.applicationInfo.uid) {
5509                    boolean recovered = false;
5510                    if (currentUid == 0) {
5511                        // The directory somehow became owned by root.  Wow.
5512                        // This is probably because the system was stopped while
5513                        // installd was in the middle of messing with its libs
5514                        // directory.  Ask installd to fix that.
5515                        int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,
5516                                pkg.applicationInfo.uid);
5517                        if (ret >= 0) {
5518                            recovered = true;
5519                            String msg = "Package " + pkg.packageName
5520                                    + " unexpectedly changed to uid 0; recovered to " +
5521                                    + pkg.applicationInfo.uid;
5522                            reportSettingsProblem(Log.WARN, msg);
5523                        }
5524                    }
5525                    if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5526                            || (scanFlags&SCAN_BOOTING) != 0)) {
5527                        // If this is a system app, we can at least delete its
5528                        // current data so the application will still work.
5529                        int ret = removeDataDirsLI(pkgName);
5530                        if (ret >= 0) {
5531                            // TODO: Kill the processes first
5532                            // Old data gone!
5533                            String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0
5534                                    ? "System package " : "Third party package ";
5535                            String msg = prefix + pkg.packageName
5536                                    + " has changed from uid: "
5537                                    + currentUid + " to "
5538                                    + pkg.applicationInfo.uid + "; old data erased";
5539                            reportSettingsProblem(Log.WARN, msg);
5540                            recovered = true;
5541
5542                            // And now re-install the app.
5543                            ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5544                                                   pkg.applicationInfo.seinfo);
5545                            if (ret == -1) {
5546                                // Ack should not happen!
5547                                msg = prefix + pkg.packageName
5548                                        + " could not have data directory re-created after delete.";
5549                                reportSettingsProblem(Log.WARN, msg);
5550                                throw new PackageManagerException(
5551                                        INSTALL_FAILED_INSUFFICIENT_STORAGE, msg);
5552                            }
5553                        }
5554                        if (!recovered) {
5555                            mHasSystemUidErrors = true;
5556                        }
5557                    } else if (!recovered) {
5558                        // If we allow this install to proceed, we will be broken.
5559                        // Abort, abort!
5560                        throw new PackageManagerException(INSTALL_FAILED_UID_CHANGED,
5561                                "scanPackageLI");
5562                    }
5563                    if (!recovered) {
5564                        pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"
5565                            + pkg.applicationInfo.uid + "/fs_"
5566                            + currentUid;
5567                        pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;
5568                        pkg.applicationInfo.nativeLibraryRootDir = pkg.applicationInfo.dataDir;
5569                        String msg = "Package " + pkg.packageName
5570                                + " has mismatched uid: "
5571                                + currentUid + " on disk, "
5572                                + pkg.applicationInfo.uid + " in settings";
5573                        // writer
5574                        synchronized (mPackages) {
5575                            mSettings.mReadMessages.append(msg);
5576                            mSettings.mReadMessages.append('\n');
5577                            uidError = true;
5578                            if (!pkgSetting.uidError) {
5579                                reportSettingsProblem(Log.ERROR, msg);
5580                            }
5581                        }
5582                    }
5583                }
5584                pkg.applicationInfo.dataDir = dataPath.getPath();
5585                if (mShouldRestoreconData) {
5586                    Slog.i(TAG, "SELinux relabeling of " + pkg.packageName + " issued.");
5587                    mInstaller.restoreconData(pkg.packageName, pkg.applicationInfo.seinfo,
5588                                pkg.applicationInfo.uid);
5589                }
5590            } else {
5591                if (DEBUG_PACKAGE_SCANNING) {
5592                    if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
5593                        Log.v(TAG, "Want this data dir: " + dataPath);
5594                }
5595                //invoke installer to do the actual installation
5596                int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid,
5597                                           pkg.applicationInfo.seinfo);
5598                if (ret < 0) {
5599                    // Error from installer
5600                    throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
5601                            "Unable to create data dirs [errorCode=" + ret + "]");
5602                }
5603
5604                if (dataPath.exists()) {
5605                    pkg.applicationInfo.dataDir = dataPath.getPath();
5606                } else {
5607                    Slog.w(TAG, "Unable to create data directory: " + dataPath);
5608                    pkg.applicationInfo.dataDir = null;
5609                }
5610            }
5611
5612            pkgSetting.uidError = uidError;
5613        }
5614
5615        final String path = scanFile.getPath();
5616        final String codePath = pkg.applicationInfo.getCodePath();
5617        final String cpuAbiOverride = deriveAbiOverride(pkg.cpuAbiOverride, pkgSetting);
5618        if (isSystemApp(pkg) && !isUpdatedSystemApp(pkg)) {
5619            setBundledAppAbisAndRoots(pkg, pkgSetting);
5620
5621            // If we haven't found any native libraries for the app, check if it has
5622            // renderscript code. We'll need to force the app to 32 bit if it has
5623            // renderscript bitcode.
5624            if (pkg.applicationInfo.primaryCpuAbi == null
5625                    && pkg.applicationInfo.secondaryCpuAbi == null
5626                    && Build.SUPPORTED_64_BIT_ABIS.length >  0) {
5627                NativeLibraryHelper.Handle handle = null;
5628                try {
5629                    handle = NativeLibraryHelper.Handle.create(scanFile);
5630                    if (NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5631                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
5632                    }
5633                } catch (IOException ioe) {
5634                    Slog.w(TAG, "Error scanning system app : " + ioe);
5635                } finally {
5636                    IoUtils.closeQuietly(handle);
5637                }
5638            }
5639
5640            setNativeLibraryPaths(pkg);
5641        } else {
5642            // TODO: We can probably be smarter about this stuff. For installed apps,
5643            // we can calculate this information at install time once and for all. For
5644            // system apps, we can probably assume that this information doesn't change
5645            // after the first boot scan. As things stand, we do lots of unnecessary work.
5646
5647            // Give ourselves some initial paths; we'll come back for another
5648            // pass once we've determined ABI below.
5649            setNativeLibraryPaths(pkg);
5650
5651            final boolean isAsec = isForwardLocked(pkg) || isExternal(pkg);
5652            final String nativeLibraryRootStr = pkg.applicationInfo.nativeLibraryRootDir;
5653            final boolean useIsaSpecificSubdirs = pkg.applicationInfo.nativeLibraryRootRequiresIsa;
5654
5655            NativeLibraryHelper.Handle handle = null;
5656            try {
5657                handle = NativeLibraryHelper.Handle.create(scanFile);
5658                // TODO(multiArch): This can be null for apps that didn't go through the
5659                // usual installation process. We can calculate it again, like we
5660                // do during install time.
5661                //
5662                // TODO(multiArch): Why do we need to rescan ASEC apps again ? It seems totally
5663                // unnecessary.
5664                final File nativeLibraryRoot = new File(nativeLibraryRootStr);
5665
5666                // Null out the abis so that they can be recalculated.
5667                pkg.applicationInfo.primaryCpuAbi = null;
5668                pkg.applicationInfo.secondaryCpuAbi = null;
5669                if (isMultiArch(pkg.applicationInfo)) {
5670                    // Warn if we've set an abiOverride for multi-lib packages..
5671                    // By definition, we need to copy both 32 and 64 bit libraries for
5672                    // such packages.
5673                    if (pkg.cpuAbiOverride != null
5674                            && !NativeLibraryHelper.CLEAR_ABI_OVERRIDE.equals(pkg.cpuAbiOverride)) {
5675                        Slog.w(TAG, "Ignoring abiOverride for multi arch application.");
5676                    }
5677
5678                    int abi32 = PackageManager.NO_NATIVE_LIBRARIES;
5679                    int abi64 = PackageManager.NO_NATIVE_LIBRARIES;
5680                    if (Build.SUPPORTED_32_BIT_ABIS.length > 0) {
5681                        if (isAsec) {
5682                            abi32 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_32_BIT_ABIS);
5683                        } else {
5684                            abi32 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5685                                    nativeLibraryRoot, Build.SUPPORTED_32_BIT_ABIS,
5686                                    useIsaSpecificSubdirs);
5687                        }
5688                    }
5689
5690                    maybeThrowExceptionForMultiArchCopy(
5691                            "Error unpackaging 32 bit native libs for multiarch app.", abi32);
5692
5693                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0) {
5694                        if (isAsec) {
5695                            abi64 = NativeLibraryHelper.findSupportedAbi(handle, Build.SUPPORTED_64_BIT_ABIS);
5696                        } else {
5697                            abi64 = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5698                                    nativeLibraryRoot, Build.SUPPORTED_64_BIT_ABIS,
5699                                    useIsaSpecificSubdirs);
5700                        }
5701                    }
5702
5703                    maybeThrowExceptionForMultiArchCopy(
5704                            "Error unpackaging 64 bit native libs for multiarch app.", abi64);
5705
5706                    if (abi64 >= 0) {
5707                        pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[abi64];
5708                    }
5709
5710                    if (abi32 >= 0) {
5711                        final String abi = Build.SUPPORTED_32_BIT_ABIS[abi32];
5712                        if (abi64 >= 0) {
5713                            pkg.applicationInfo.secondaryCpuAbi = abi;
5714                        } else {
5715                            pkg.applicationInfo.primaryCpuAbi = abi;
5716                        }
5717                    }
5718                } else {
5719                    String[] abiList = (cpuAbiOverride != null) ?
5720                            new String[] { cpuAbiOverride } : Build.SUPPORTED_ABIS;
5721
5722                    // Enable gross and lame hacks for apps that are built with old
5723                    // SDK tools. We must scan their APKs for renderscript bitcode and
5724                    // not launch them if it's present. Don't bother checking on devices
5725                    // that don't have 64 bit support.
5726                    boolean needsRenderScriptOverride = false;
5727                    if (Build.SUPPORTED_64_BIT_ABIS.length > 0 && cpuAbiOverride == null &&
5728                            NativeLibraryHelper.hasRenderscriptBitcode(handle)) {
5729                        abiList = Build.SUPPORTED_32_BIT_ABIS;
5730                        needsRenderScriptOverride = true;
5731                    }
5732
5733                    final int copyRet;
5734                    if (isAsec) {
5735                        copyRet = NativeLibraryHelper.findSupportedAbi(handle, abiList);
5736                    } else {
5737                        copyRet = NativeLibraryHelper.copyNativeBinariesForSupportedAbi(handle,
5738                                nativeLibraryRoot, abiList, useIsaSpecificSubdirs);
5739                    }
5740
5741                    if (copyRet < 0 && copyRet != PackageManager.NO_NATIVE_LIBRARIES) {
5742                        throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5743                                "Error unpackaging native libs for app, errorCode=" + copyRet);
5744                    }
5745
5746                    if (copyRet >= 0) {
5747                        pkg.applicationInfo.primaryCpuAbi = abiList[copyRet];
5748                    } else if (copyRet == PackageManager.NO_NATIVE_LIBRARIES && cpuAbiOverride != null) {
5749                        pkg.applicationInfo.primaryCpuAbi = cpuAbiOverride;
5750                    } else if (needsRenderScriptOverride) {
5751                        pkg.applicationInfo.primaryCpuAbi = abiList[0];
5752                    }
5753                }
5754            } catch (IOException ioe) {
5755                Slog.e(TAG, "Unable to get canonical file " + ioe.toString());
5756            } finally {
5757                IoUtils.closeQuietly(handle);
5758            }
5759
5760            // Now that we've calculated the ABIs and determined if it's an internal app,
5761            // we will go ahead and populate the nativeLibraryPath.
5762            setNativeLibraryPaths(pkg);
5763
5764            if (DEBUG_INSTALL) Slog.i(TAG, "Linking native library dir for " + path);
5765            final int[] userIds = sUserManager.getUserIds();
5766            synchronized (mInstallLock) {
5767                // Create a native library symlink only if we have native libraries
5768                // and if the native libraries are 32 bit libraries. We do not provide
5769                // this symlink for 64 bit libraries.
5770                if (pkg.applicationInfo.primaryCpuAbi != null &&
5771                        !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
5772                    final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
5773                    for (int userId : userIds) {
5774                        if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
5775                            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR,
5776                                    "Failed linking native library dir (user=" + userId + ")");
5777                        }
5778                    }
5779                }
5780            }
5781        }
5782
5783        // This is a special case for the "system" package, where the ABI is
5784        // dictated by the zygote configuration (and init.rc). We should keep track
5785        // of this ABI so that we can deal with "normal" applications that run under
5786        // the same UID correctly.
5787        if (mPlatformPackage == pkg) {
5788            pkg.applicationInfo.primaryCpuAbi = VMRuntime.getRuntime().is64Bit() ?
5789                    Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0];
5790        }
5791
5792        pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
5793        pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
5794        pkgSetting.cpuAbiOverrideString = cpuAbiOverride;
5795        // Copy the derived override back to the parsed package, so that we can
5796        // update the package settings accordingly.
5797        pkg.cpuAbiOverride = cpuAbiOverride;
5798
5799        if (DEBUG_ABI_SELECTION) {
5800            Slog.d(TAG, "Resolved nativeLibraryRoot for " + pkg.applicationInfo.packageName
5801                    + " to root=" + pkg.applicationInfo.nativeLibraryRootDir + ", isa="
5802                    + pkg.applicationInfo.nativeLibraryRootRequiresIsa);
5803        }
5804
5805        // Push the derived path down into PackageSettings so we know what to
5806        // clean up at uninstall time.
5807        pkgSetting.legacyNativeLibraryPathString = pkg.applicationInfo.nativeLibraryRootDir;
5808
5809        if (DEBUG_ABI_SELECTION) {
5810            Log.d(TAG, "Abis for package[" + pkg.packageName + "] are" +
5811                    " primary=" + pkg.applicationInfo.primaryCpuAbi +
5812                    " secondary=" + pkg.applicationInfo.secondaryCpuAbi);
5813        }
5814
5815        if ((scanFlags&SCAN_BOOTING) == 0 && pkgSetting.sharedUser != null) {
5816            // We don't do this here during boot because we can do it all
5817            // at once after scanning all existing packages.
5818            //
5819            // We also do this *before* we perform dexopt on this package, so that
5820            // we can avoid redundant dexopts, and also to make sure we've got the
5821            // code and package path correct.
5822            adjustCpuAbisForSharedUserLPw(pkgSetting.sharedUser.packages,
5823                    pkg, forceDex, (scanFlags & SCAN_DEFER_DEX) != 0);
5824        }
5825
5826        if ((scanFlags & SCAN_NO_DEX) == 0) {
5827            if (performDexOptLI(pkg, null /* instruction sets */, forceDex,
5828                    (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5829                throw new PackageManagerException(INSTALL_FAILED_DEXOPT, "scanPackageLI");
5830            }
5831        }
5832
5833        if (mFactoryTest && pkg.requestedPermissions.contains(
5834                android.Manifest.permission.FACTORY_TEST)) {
5835            pkg.applicationInfo.flags |= ApplicationInfo.FLAG_FACTORY_TEST;
5836        }
5837
5838        ArrayList<PackageParser.Package> clientLibPkgs = null;
5839
5840        // writer
5841        synchronized (mPackages) {
5842            if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
5843                // Only system apps can add new shared libraries.
5844                if (pkg.libraryNames != null) {
5845                    for (int i=0; i<pkg.libraryNames.size(); i++) {
5846                        String name = pkg.libraryNames.get(i);
5847                        boolean allowed = false;
5848                        if (isUpdatedSystemApp(pkg)) {
5849                            // New library entries can only be added through the
5850                            // system image.  This is important to get rid of a lot
5851                            // of nasty edge cases: for example if we allowed a non-
5852                            // system update of the app to add a library, then uninstalling
5853                            // the update would make the library go away, and assumptions
5854                            // we made such as through app install filtering would now
5855                            // have allowed apps on the device which aren't compatible
5856                            // with it.  Better to just have the restriction here, be
5857                            // conservative, and create many fewer cases that can negatively
5858                            // impact the user experience.
5859                            final PackageSetting sysPs = mSettings
5860                                    .getDisabledSystemPkgLPr(pkg.packageName);
5861                            if (sysPs.pkg != null && sysPs.pkg.libraryNames != null) {
5862                                for (int j=0; j<sysPs.pkg.libraryNames.size(); j++) {
5863                                    if (name.equals(sysPs.pkg.libraryNames.get(j))) {
5864                                        allowed = true;
5865                                        allowed = true;
5866                                        break;
5867                                    }
5868                                }
5869                            }
5870                        } else {
5871                            allowed = true;
5872                        }
5873                        if (allowed) {
5874                            if (!mSharedLibraries.containsKey(name)) {
5875                                mSharedLibraries.put(name, new SharedLibraryEntry(null, pkg.packageName));
5876                            } else if (!name.equals(pkg.packageName)) {
5877                                Slog.w(TAG, "Package " + pkg.packageName + " library "
5878                                        + name + " already exists; skipping");
5879                            }
5880                        } else {
5881                            Slog.w(TAG, "Package " + pkg.packageName + " declares lib "
5882                                    + name + " that is not declared on system image; skipping");
5883                        }
5884                    }
5885                    if ((scanFlags&SCAN_BOOTING) == 0) {
5886                        // If we are not booting, we need to update any applications
5887                        // that are clients of our shared library.  If we are booting,
5888                        // this will all be done once the scan is complete.
5889                        clientLibPkgs = updateAllSharedLibrariesLPw(pkg);
5890                    }
5891                }
5892            }
5893        }
5894
5895        // We also need to dexopt any apps that are dependent on this library.  Note that
5896        // if these fail, we should abort the install since installing the library will
5897        // result in some apps being broken.
5898        if (clientLibPkgs != null) {
5899            if ((scanFlags & SCAN_NO_DEX) == 0) {
5900                for (int i = 0; i < clientLibPkgs.size(); i++) {
5901                    PackageParser.Package clientPkg = clientLibPkgs.get(i);
5902                    if (performDexOptLI(clientPkg, null /* instruction sets */, forceDex,
5903                            (scanFlags & SCAN_DEFER_DEX) != 0, false) == DEX_OPT_FAILED) {
5904                        throw new PackageManagerException(INSTALL_FAILED_DEXOPT,
5905                                "scanPackageLI failed to dexopt clientLibPkgs");
5906                    }
5907                }
5908            }
5909        }
5910
5911        // Request the ActivityManager to kill the process(only for existing packages)
5912        // so that we do not end up in a confused state while the user is still using the older
5913        // version of the application while the new one gets installed.
5914        if ((scanFlags & SCAN_REPLACING) != 0) {
5915            killApplication(pkg.applicationInfo.packageName,
5916                        pkg.applicationInfo.uid, "update pkg");
5917        }
5918
5919        // Also need to kill any apps that are dependent on the library.
5920        if (clientLibPkgs != null) {
5921            for (int i=0; i<clientLibPkgs.size(); i++) {
5922                PackageParser.Package clientPkg = clientLibPkgs.get(i);
5923                killApplication(clientPkg.applicationInfo.packageName,
5924                        clientPkg.applicationInfo.uid, "update lib");
5925            }
5926        }
5927
5928        // writer
5929        synchronized (mPackages) {
5930            // We don't expect installation to fail beyond this point
5931
5932            // Add the new setting to mSettings
5933            mSettings.insertPackageSettingLPw(pkgSetting, pkg);
5934            // Add the new setting to mPackages
5935            mPackages.put(pkg.applicationInfo.packageName, pkg);
5936            // Make sure we don't accidentally delete its data.
5937            final Iterator<PackageCleanItem> iter = mSettings.mPackagesToBeCleaned.iterator();
5938            while (iter.hasNext()) {
5939                PackageCleanItem item = iter.next();
5940                if (pkgName.equals(item.packageName)) {
5941                    iter.remove();
5942                }
5943            }
5944
5945            // Take care of first install / last update times.
5946            if (currentTime != 0) {
5947                if (pkgSetting.firstInstallTime == 0) {
5948                    pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = currentTime;
5949                } else if ((scanFlags&SCAN_UPDATE_TIME) != 0) {
5950                    pkgSetting.lastUpdateTime = currentTime;
5951                }
5952            } else if (pkgSetting.firstInstallTime == 0) {
5953                // We need *something*.  Take time time stamp of the file.
5954                pkgSetting.firstInstallTime = pkgSetting.lastUpdateTime = scanFileTime;
5955            } else if ((parseFlags&PackageParser.PARSE_IS_SYSTEM_DIR) != 0) {
5956                if (scanFileTime != pkgSetting.timeStamp) {
5957                    // A package on the system image has changed; consider this
5958                    // to be an update.
5959                    pkgSetting.lastUpdateTime = scanFileTime;
5960                }
5961            }
5962
5963            // Add the package's KeySets to the global KeySetManagerService
5964            KeySetManagerService ksms = mSettings.mKeySetManagerService;
5965            try {
5966                // Old KeySetData no longer valid.
5967                ksms.removeAppKeySetDataLPw(pkg.packageName);
5968                ksms.addSigningKeySetToPackageLPw(pkg.packageName, pkg.mSigningKeys);
5969                if (pkg.mKeySetMapping != null) {
5970                    for (Map.Entry<String, ArraySet<PublicKey>> entry :
5971                            pkg.mKeySetMapping.entrySet()) {
5972                        if (entry.getValue() != null) {
5973                            ksms.addDefinedKeySetToPackageLPw(pkg.packageName,
5974                                                          entry.getValue(), entry.getKey());
5975                        }
5976                    }
5977                    if (pkg.mUpgradeKeySets != null) {
5978                        for (String upgradeAlias : pkg.mUpgradeKeySets) {
5979                            ksms.addUpgradeKeySetToPackageLPw(pkg.packageName, upgradeAlias);
5980                        }
5981                    }
5982                }
5983            } catch (NullPointerException e) {
5984                Slog.e(TAG, "Could not add KeySet to " + pkg.packageName, e);
5985            } catch (IllegalArgumentException e) {
5986                Slog.e(TAG, "Could not add KeySet to malformed package" + pkg.packageName, e);
5987            }
5988
5989            int N = pkg.providers.size();
5990            StringBuilder r = null;
5991            int i;
5992            for (i=0; i<N; i++) {
5993                PackageParser.Provider p = pkg.providers.get(i);
5994                p.info.processName = fixProcessName(pkg.applicationInfo.processName,
5995                        p.info.processName, pkg.applicationInfo.uid);
5996                mProviders.addProvider(p);
5997                p.syncable = p.info.isSyncable;
5998                if (p.info.authority != null) {
5999                    String names[] = p.info.authority.split(";");
6000                    p.info.authority = null;
6001                    for (int j = 0; j < names.length; j++) {
6002                        if (j == 1 && p.syncable) {
6003                            // We only want the first authority for a provider to possibly be
6004                            // syncable, so if we already added this provider using a different
6005                            // authority clear the syncable flag. We copy the provider before
6006                            // changing it because the mProviders object contains a reference
6007                            // to a provider that we don't want to change.
6008                            // Only do this for the second authority since the resulting provider
6009                            // object can be the same for all future authorities for this provider.
6010                            p = new PackageParser.Provider(p);
6011                            p.syncable = false;
6012                        }
6013                        if (!mProvidersByAuthority.containsKey(names[j])) {
6014                            mProvidersByAuthority.put(names[j], p);
6015                            if (p.info.authority == null) {
6016                                p.info.authority = names[j];
6017                            } else {
6018                                p.info.authority = p.info.authority + ";" + names[j];
6019                            }
6020                            if (DEBUG_PACKAGE_SCANNING) {
6021                                if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)
6022                                    Log.d(TAG, "Registered content provider: " + names[j]
6023                                            + ", className = " + p.info.name + ", isSyncable = "
6024                                            + p.info.isSyncable);
6025                            }
6026                        } else {
6027                            PackageParser.Provider other = mProvidersByAuthority.get(names[j]);
6028                            Slog.w(TAG, "Skipping provider name " + names[j] +
6029                                    " (in package " + pkg.applicationInfo.packageName +
6030                                    "): name already used by "
6031                                    + ((other != null && other.getComponentName() != null)
6032                                            ? other.getComponentName().getPackageName() : "?"));
6033                        }
6034                    }
6035                }
6036                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6037                    if (r == null) {
6038                        r = new StringBuilder(256);
6039                    } else {
6040                        r.append(' ');
6041                    }
6042                    r.append(p.info.name);
6043                }
6044            }
6045            if (r != null) {
6046                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Providers: " + r);
6047            }
6048
6049            N = pkg.services.size();
6050            r = null;
6051            for (i=0; i<N; i++) {
6052                PackageParser.Service s = pkg.services.get(i);
6053                s.info.processName = fixProcessName(pkg.applicationInfo.processName,
6054                        s.info.processName, pkg.applicationInfo.uid);
6055                mServices.addService(s);
6056                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6057                    if (r == null) {
6058                        r = new StringBuilder(256);
6059                    } else {
6060                        r.append(' ');
6061                    }
6062                    r.append(s.info.name);
6063                }
6064            }
6065            if (r != null) {
6066                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Services: " + r);
6067            }
6068
6069            N = pkg.receivers.size();
6070            r = null;
6071            for (i=0; i<N; i++) {
6072                PackageParser.Activity a = pkg.receivers.get(i);
6073                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6074                        a.info.processName, pkg.applicationInfo.uid);
6075                mReceivers.addActivity(a, "receiver");
6076                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6077                    if (r == null) {
6078                        r = new StringBuilder(256);
6079                    } else {
6080                        r.append(' ');
6081                    }
6082                    r.append(a.info.name);
6083                }
6084            }
6085            if (r != null) {
6086                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Receivers: " + r);
6087            }
6088
6089            N = pkg.activities.size();
6090            r = null;
6091            for (i=0; i<N; i++) {
6092                PackageParser.Activity a = pkg.activities.get(i);
6093                a.info.processName = fixProcessName(pkg.applicationInfo.processName,
6094                        a.info.processName, pkg.applicationInfo.uid);
6095                mActivities.addActivity(a, "activity");
6096                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6097                    if (r == null) {
6098                        r = new StringBuilder(256);
6099                    } else {
6100                        r.append(' ');
6101                    }
6102                    r.append(a.info.name);
6103                }
6104            }
6105            if (r != null) {
6106                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Activities: " + r);
6107            }
6108
6109            N = pkg.permissionGroups.size();
6110            r = null;
6111            for (i=0; i<N; i++) {
6112                PackageParser.PermissionGroup pg = pkg.permissionGroups.get(i);
6113                PackageParser.PermissionGroup cur = mPermissionGroups.get(pg.info.name);
6114                if (cur == null) {
6115                    mPermissionGroups.put(pg.info.name, pg);
6116                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6117                        if (r == null) {
6118                            r = new StringBuilder(256);
6119                        } else {
6120                            r.append(' ');
6121                        }
6122                        r.append(pg.info.name);
6123                    }
6124                } else {
6125                    Slog.w(TAG, "Permission group " + pg.info.name + " from package "
6126                            + pg.info.packageName + " ignored: original from "
6127                            + cur.info.packageName);
6128                    if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6129                        if (r == null) {
6130                            r = new StringBuilder(256);
6131                        } else {
6132                            r.append(' ');
6133                        }
6134                        r.append("DUP:");
6135                        r.append(pg.info.name);
6136                    }
6137                }
6138            }
6139            if (r != null) {
6140                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permission Groups: " + r);
6141            }
6142
6143            N = pkg.permissions.size();
6144            r = null;
6145            for (i=0; i<N; i++) {
6146                PackageParser.Permission p = pkg.permissions.get(i);
6147                HashMap<String, BasePermission> permissionMap =
6148                        p.tree ? mSettings.mPermissionTrees
6149                        : mSettings.mPermissions;
6150                p.group = mPermissionGroups.get(p.info.group);
6151                if (p.info.group == null || p.group != null) {
6152                    BasePermission bp = permissionMap.get(p.info.name);
6153
6154                    // Allow system apps to redefine non-system permissions
6155                    if (bp != null && !Objects.equals(bp.sourcePackage, p.info.packageName)) {
6156                        final boolean currentOwnerIsSystem = (bp.perm != null
6157                                && isSystemApp(bp.perm.owner));
6158                        if (isSystemApp(p.owner)) {
6159                            if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) {
6160                                // It's a built-in permission and no owner, take ownership now
6161                                bp.packageSetting = pkgSetting;
6162                                bp.perm = p;
6163                                bp.uid = pkg.applicationInfo.uid;
6164                                bp.sourcePackage = p.info.packageName;
6165                            } else if (!currentOwnerIsSystem) {
6166                                String msg = "New decl " + p.owner + " of permission  "
6167                                        + p.info.name + " is system; overriding " + bp.sourcePackage;
6168                                reportSettingsProblem(Log.WARN, msg);
6169                                bp = null;
6170                            }
6171                        }
6172                    }
6173
6174                    if (bp == null) {
6175                        bp = new BasePermission(p.info.name, p.info.packageName,
6176                                BasePermission.TYPE_NORMAL);
6177                        permissionMap.put(p.info.name, bp);
6178                    }
6179
6180                    if (bp.perm == null) {
6181                        if (bp.sourcePackage == null
6182                                || bp.sourcePackage.equals(p.info.packageName)) {
6183                            BasePermission tree = findPermissionTreeLP(p.info.name);
6184                            if (tree == null
6185                                    || tree.sourcePackage.equals(p.info.packageName)) {
6186                                bp.packageSetting = pkgSetting;
6187                                bp.perm = p;
6188                                bp.uid = pkg.applicationInfo.uid;
6189                                bp.sourcePackage = p.info.packageName;
6190                                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6191                                    if (r == null) {
6192                                        r = new StringBuilder(256);
6193                                    } else {
6194                                        r.append(' ');
6195                                    }
6196                                    r.append(p.info.name);
6197                                }
6198                            } else {
6199                                Slog.w(TAG, "Permission " + p.info.name + " from package "
6200                                        + p.info.packageName + " ignored: base tree "
6201                                        + tree.name + " is from package "
6202                                        + tree.sourcePackage);
6203                            }
6204                        } else {
6205                            Slog.w(TAG, "Permission " + p.info.name + " from package "
6206                                    + p.info.packageName + " ignored: original from "
6207                                    + bp.sourcePackage);
6208                        }
6209                    } else if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6210                        if (r == null) {
6211                            r = new StringBuilder(256);
6212                        } else {
6213                            r.append(' ');
6214                        }
6215                        r.append("DUP:");
6216                        r.append(p.info.name);
6217                    }
6218                    if (bp.perm == p) {
6219                        bp.protectionLevel = p.info.protectionLevel;
6220                    }
6221                } else {
6222                    Slog.w(TAG, "Permission " + p.info.name + " from package "
6223                            + p.info.packageName + " ignored: no group "
6224                            + p.group);
6225                }
6226            }
6227            if (r != null) {
6228                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Permissions: " + r);
6229            }
6230
6231            N = pkg.instrumentation.size();
6232            r = null;
6233            for (i=0; i<N; i++) {
6234                PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6235                a.info.packageName = pkg.applicationInfo.packageName;
6236                a.info.sourceDir = pkg.applicationInfo.sourceDir;
6237                a.info.publicSourceDir = pkg.applicationInfo.publicSourceDir;
6238                a.info.splitSourceDirs = pkg.applicationInfo.splitSourceDirs;
6239                a.info.splitPublicSourceDirs = pkg.applicationInfo.splitPublicSourceDirs;
6240                a.info.dataDir = pkg.applicationInfo.dataDir;
6241
6242                // TODO: Update instrumentation.nativeLibraryDir as well ? Does it
6243                // need other information about the application, like the ABI and what not ?
6244                a.info.nativeLibraryDir = pkg.applicationInfo.nativeLibraryDir;
6245                mInstrumentation.put(a.getComponentName(), a);
6246                if ((parseFlags&PackageParser.PARSE_CHATTY) != 0) {
6247                    if (r == null) {
6248                        r = new StringBuilder(256);
6249                    } else {
6250                        r.append(' ');
6251                    }
6252                    r.append(a.info.name);
6253                }
6254            }
6255            if (r != null) {
6256                if (DEBUG_PACKAGE_SCANNING) Log.d(TAG, "  Instrumentation: " + r);
6257            }
6258
6259            if (pkg.protectedBroadcasts != null) {
6260                N = pkg.protectedBroadcasts.size();
6261                for (i=0; i<N; i++) {
6262                    mProtectedBroadcasts.add(pkg.protectedBroadcasts.get(i));
6263                }
6264            }
6265
6266            pkgSetting.setTimeStamp(scanFileTime);
6267
6268            // Create idmap files for pairs of (packages, overlay packages).
6269            // Note: "android", ie framework-res.apk, is handled by native layers.
6270            if (pkg.mOverlayTarget != null) {
6271                // This is an overlay package.
6272                if (pkg.mOverlayTarget != null && !pkg.mOverlayTarget.equals("android")) {
6273                    if (!mOverlays.containsKey(pkg.mOverlayTarget)) {
6274                        mOverlays.put(pkg.mOverlayTarget,
6275                                new HashMap<String, PackageParser.Package>());
6276                    }
6277                    HashMap<String, PackageParser.Package> map = mOverlays.get(pkg.mOverlayTarget);
6278                    map.put(pkg.packageName, pkg);
6279                    PackageParser.Package orig = mPackages.get(pkg.mOverlayTarget);
6280                    if (orig != null && !createIdmapForPackagePairLI(orig, pkg)) {
6281                        throw new PackageManagerException(INSTALL_FAILED_UPDATE_INCOMPATIBLE,
6282                                "scanPackageLI failed to createIdmap");
6283                    }
6284                }
6285            } else if (mOverlays.containsKey(pkg.packageName) &&
6286                    !pkg.packageName.equals("android")) {
6287                // This is a regular package, with one or more known overlay packages.
6288                createIdmapsForPackageLI(pkg);
6289            }
6290        }
6291
6292        return pkg;
6293    }
6294
6295    /**
6296     * Adjusts ABIs for a set of packages belonging to a shared user so that they all match.
6297     * i.e, so that all packages can be run inside a single process if required.
6298     *
6299     * Optionally, callers can pass in a parsed package via {@code newPackage} in which case
6300     * this function will either try and make the ABI for all packages in {@code packagesForUser}
6301     * match {@code scannedPackage} or will update the ABI of {@code scannedPackage} to match
6302     * the ABI selected for {@code packagesForUser}. This variant is used when installing or
6303     * updating a package that belongs to a shared user.
6304     *
6305     * NOTE: We currently only match for the primary CPU abi string. Matching the secondary
6306     * adds unnecessary complexity.
6307     */
6308    private void adjustCpuAbisForSharedUserLPw(Set<PackageSetting> packagesForUser,
6309            PackageParser.Package scannedPackage, boolean forceDexOpt, boolean deferDexOpt) {
6310        String requiredInstructionSet = null;
6311        if (scannedPackage != null && scannedPackage.applicationInfo.primaryCpuAbi != null) {
6312            requiredInstructionSet = VMRuntime.getInstructionSet(
6313                     scannedPackage.applicationInfo.primaryCpuAbi);
6314        }
6315
6316        PackageSetting requirer = null;
6317        for (PackageSetting ps : packagesForUser) {
6318            // If packagesForUser contains scannedPackage, we skip it. This will happen
6319            // when scannedPackage is an update of an existing package. Without this check,
6320            // we will never be able to change the ABI of any package belonging to a shared
6321            // user, even if it's compatible with other packages.
6322            if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6323                if (ps.primaryCpuAbiString == null) {
6324                    continue;
6325                }
6326
6327                final String instructionSet = VMRuntime.getInstructionSet(ps.primaryCpuAbiString);
6328                if (requiredInstructionSet != null && !instructionSet.equals(requiredInstructionSet)) {
6329                    // We have a mismatch between instruction sets (say arm vs arm64) warn about
6330                    // this but there's not much we can do.
6331                    String errorMessage = "Instruction set mismatch, "
6332                            + ((requirer == null) ? "[caller]" : requirer)
6333                            + " requires " + requiredInstructionSet + " whereas " + ps
6334                            + " requires " + instructionSet;
6335                    Slog.w(TAG, errorMessage);
6336                }
6337
6338                if (requiredInstructionSet == null) {
6339                    requiredInstructionSet = instructionSet;
6340                    requirer = ps;
6341                }
6342            }
6343        }
6344
6345        if (requiredInstructionSet != null) {
6346            String adjustedAbi;
6347            if (requirer != null) {
6348                // requirer != null implies that either scannedPackage was null or that scannedPackage
6349                // did not require an ABI, in which case we have to adjust scannedPackage to match
6350                // the ABI of the set (which is the same as requirer's ABI)
6351                adjustedAbi = requirer.primaryCpuAbiString;
6352                if (scannedPackage != null) {
6353                    scannedPackage.applicationInfo.primaryCpuAbi = adjustedAbi;
6354                }
6355            } else {
6356                // requirer == null implies that we're updating all ABIs in the set to
6357                // match scannedPackage.
6358                adjustedAbi =  scannedPackage.applicationInfo.primaryCpuAbi;
6359            }
6360
6361            for (PackageSetting ps : packagesForUser) {
6362                if (scannedPackage == null || !scannedPackage.packageName.equals(ps.name)) {
6363                    if (ps.primaryCpuAbiString != null) {
6364                        continue;
6365                    }
6366
6367                    ps.primaryCpuAbiString = adjustedAbi;
6368                    if (ps.pkg != null && ps.pkg.applicationInfo != null) {
6369                        ps.pkg.applicationInfo.primaryCpuAbi = adjustedAbi;
6370                        Slog.i(TAG, "Adjusting ABI for : " + ps.name + " to " + adjustedAbi);
6371
6372                        if (performDexOptLI(ps.pkg, null /* instruction sets */, forceDexOpt,
6373                                deferDexOpt, true) == DEX_OPT_FAILED) {
6374                            ps.primaryCpuAbiString = null;
6375                            ps.pkg.applicationInfo.primaryCpuAbi = null;
6376                            return;
6377                        } else {
6378                            mInstaller.rmdex(ps.codePathString,
6379                                             getDexCodeInstructionSet(getPreferredInstructionSet()));
6380                        }
6381                    }
6382                }
6383            }
6384        }
6385    }
6386
6387    private void setUpCustomResolverActivity(PackageParser.Package pkg) {
6388        synchronized (mPackages) {
6389            mResolverReplaced = true;
6390            // Set up information for custom user intent resolution activity.
6391            mResolveActivity.applicationInfo = pkg.applicationInfo;
6392            mResolveActivity.name = mCustomResolverComponentName.getClassName();
6393            mResolveActivity.packageName = pkg.applicationInfo.packageName;
6394            mResolveActivity.processName = null;
6395            mResolveActivity.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
6396            mResolveActivity.flags = ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS |
6397                    ActivityInfo.FLAG_FINISH_ON_CLOSE_SYSTEM_DIALOGS;
6398            mResolveActivity.theme = 0;
6399            mResolveActivity.exported = true;
6400            mResolveActivity.enabled = true;
6401            mResolveInfo.activityInfo = mResolveActivity;
6402            mResolveInfo.priority = 0;
6403            mResolveInfo.preferredOrder = 0;
6404            mResolveInfo.match = 0;
6405            mResolveComponentName = mCustomResolverComponentName;
6406            Slog.i(TAG, "Replacing default ResolverActivity with custom activity: " +
6407                    mResolveComponentName);
6408        }
6409    }
6410
6411    private static String calculateBundledApkRoot(final String codePathString) {
6412        final File codePath = new File(codePathString);
6413        final File codeRoot;
6414        if (FileUtils.contains(Environment.getRootDirectory(), codePath)) {
6415            codeRoot = Environment.getRootDirectory();
6416        } else if (FileUtils.contains(Environment.getOemDirectory(), codePath)) {
6417            codeRoot = Environment.getOemDirectory();
6418        } else if (FileUtils.contains(Environment.getVendorDirectory(), codePath)) {
6419            codeRoot = Environment.getVendorDirectory();
6420        } else {
6421            // Unrecognized code path; take its top real segment as the apk root:
6422            // e.g. /something/app/blah.apk => /something
6423            try {
6424                File f = codePath.getCanonicalFile();
6425                File parent = f.getParentFile();    // non-null because codePath is a file
6426                File tmp;
6427                while ((tmp = parent.getParentFile()) != null) {
6428                    f = parent;
6429                    parent = tmp;
6430                }
6431                codeRoot = f;
6432                Slog.w(TAG, "Unrecognized code path "
6433                        + codePath + " - using " + codeRoot);
6434            } catch (IOException e) {
6435                // Can't canonicalize the code path -- shenanigans?
6436                Slog.w(TAG, "Can't canonicalize code path " + codePath);
6437                return Environment.getRootDirectory().getPath();
6438            }
6439        }
6440        return codeRoot.getPath();
6441    }
6442
6443    /**
6444     * Derive and set the location of native libraries for the given package,
6445     * which varies depending on where and how the package was installed.
6446     */
6447    private void setNativeLibraryPaths(PackageParser.Package pkg) {
6448        final ApplicationInfo info = pkg.applicationInfo;
6449        final String codePath = pkg.codePath;
6450        final File codeFile = new File(codePath);
6451        final boolean bundledApp = isSystemApp(info) && !isUpdatedSystemApp(info);
6452        final boolean asecApp = isForwardLocked(info) || isExternal(info);
6453
6454        info.nativeLibraryRootDir = null;
6455        info.nativeLibraryRootRequiresIsa = false;
6456        info.nativeLibraryDir = null;
6457        info.secondaryNativeLibraryDir = null;
6458
6459        if (isApkFile(codeFile)) {
6460            // Monolithic install
6461            if (bundledApp) {
6462                // If "/system/lib64/apkname" exists, assume that is the per-package
6463                // native library directory to use; otherwise use "/system/lib/apkname".
6464                final String apkRoot = calculateBundledApkRoot(info.sourceDir);
6465                final boolean is64Bit = VMRuntime.is64BitInstructionSet(
6466                        getPrimaryInstructionSet(info));
6467
6468                // This is a bundled system app so choose the path based on the ABI.
6469                // if it's a 64 bit abi, use lib64 otherwise use lib32. Note that this
6470                // is just the default path.
6471                final String apkName = deriveCodePathName(codePath);
6472                final String libDir = is64Bit ? LIB64_DIR_NAME : LIB_DIR_NAME;
6473                info.nativeLibraryRootDir = Environment.buildPath(new File(apkRoot), libDir,
6474                        apkName).getAbsolutePath();
6475
6476                if (info.secondaryCpuAbi != null) {
6477                    final String secondaryLibDir = is64Bit ? LIB_DIR_NAME : LIB64_DIR_NAME;
6478                    info.secondaryNativeLibraryDir = Environment.buildPath(new File(apkRoot),
6479                            secondaryLibDir, apkName).getAbsolutePath();
6480                }
6481            } else if (asecApp) {
6482                info.nativeLibraryRootDir = new File(codeFile.getParentFile(), LIB_DIR_NAME)
6483                        .getAbsolutePath();
6484            } else {
6485                final String apkName = deriveCodePathName(codePath);
6486                info.nativeLibraryRootDir = new File(mAppLib32InstallDir, apkName)
6487                        .getAbsolutePath();
6488            }
6489
6490            info.nativeLibraryRootRequiresIsa = false;
6491            info.nativeLibraryDir = info.nativeLibraryRootDir;
6492        } else {
6493            // Cluster install
6494            info.nativeLibraryRootDir = new File(codeFile, LIB_DIR_NAME).getAbsolutePath();
6495            info.nativeLibraryRootRequiresIsa = true;
6496
6497            info.nativeLibraryDir = new File(info.nativeLibraryRootDir,
6498                    getPrimaryInstructionSet(info)).getAbsolutePath();
6499
6500            if (info.secondaryCpuAbi != null) {
6501                info.secondaryNativeLibraryDir = new File(info.nativeLibraryRootDir,
6502                        VMRuntime.getInstructionSet(info.secondaryCpuAbi)).getAbsolutePath();
6503            }
6504        }
6505    }
6506
6507    /**
6508     * Calculate the abis and roots for a bundled app. These can uniquely
6509     * be determined from the contents of the system partition, i.e whether
6510     * it contains 64 or 32 bit shared libraries etc. We do not validate any
6511     * of this information, and instead assume that the system was built
6512     * sensibly.
6513     */
6514    private void setBundledAppAbisAndRoots(PackageParser.Package pkg,
6515                                           PackageSetting pkgSetting) {
6516        final String apkName = deriveCodePathName(pkg.applicationInfo.getCodePath());
6517
6518        // If "/system/lib64/apkname" exists, assume that is the per-package
6519        // native library directory to use; otherwise use "/system/lib/apkname".
6520        final String apkRoot = calculateBundledApkRoot(pkg.applicationInfo.sourceDir);
6521        setBundledAppAbi(pkg, apkRoot, apkName);
6522        // pkgSetting might be null during rescan following uninstall of updates
6523        // to a bundled app, so accommodate that possibility.  The settings in
6524        // that case will be established later from the parsed package.
6525        //
6526        // If the settings aren't null, sync them up with what we've just derived.
6527        // note that apkRoot isn't stored in the package settings.
6528        if (pkgSetting != null) {
6529            pkgSetting.primaryCpuAbiString = pkg.applicationInfo.primaryCpuAbi;
6530            pkgSetting.secondaryCpuAbiString = pkg.applicationInfo.secondaryCpuAbi;
6531        }
6532    }
6533
6534    /**
6535     * Deduces the ABI of a bundled app and sets the relevant fields on the
6536     * parsed pkg object.
6537     *
6538     * @param apkRoot the root of the installed apk, something like {@code /system} or {@code /oem}
6539     *        under which system libraries are installed.
6540     * @param apkName the name of the installed package.
6541     */
6542    private static void setBundledAppAbi(PackageParser.Package pkg, String apkRoot, String apkName) {
6543        final File codeFile = new File(pkg.codePath);
6544
6545        final boolean has64BitLibs;
6546        final boolean has32BitLibs;
6547        if (isApkFile(codeFile)) {
6548            // Monolithic install
6549            has64BitLibs = (new File(apkRoot, new File(LIB64_DIR_NAME, apkName).getPath())).exists();
6550            has32BitLibs = (new File(apkRoot, new File(LIB_DIR_NAME, apkName).getPath())).exists();
6551        } else {
6552            // Cluster install
6553            final File rootDir = new File(codeFile, LIB_DIR_NAME);
6554            if (!ArrayUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS)
6555                    && !TextUtils.isEmpty(Build.SUPPORTED_64_BIT_ABIS[0])) {
6556                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_64_BIT_ABIS[0]);
6557                has64BitLibs = (new File(rootDir, isa)).exists();
6558            } else {
6559                has64BitLibs = false;
6560            }
6561            if (!ArrayUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS)
6562                    && !TextUtils.isEmpty(Build.SUPPORTED_32_BIT_ABIS[0])) {
6563                final String isa = VMRuntime.getInstructionSet(Build.SUPPORTED_32_BIT_ABIS[0]);
6564                has32BitLibs = (new File(rootDir, isa)).exists();
6565            } else {
6566                has32BitLibs = false;
6567            }
6568        }
6569
6570        if (has64BitLibs && !has32BitLibs) {
6571            // The package has 64 bit libs, but not 32 bit libs. Its primary
6572            // ABI should be 64 bit. We can safely assume here that the bundled
6573            // native libraries correspond to the most preferred ABI in the list.
6574
6575            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6576            pkg.applicationInfo.secondaryCpuAbi = null;
6577        } else if (has32BitLibs && !has64BitLibs) {
6578            // The package has 32 bit libs but not 64 bit libs. Its primary
6579            // ABI should be 32 bit.
6580
6581            pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6582            pkg.applicationInfo.secondaryCpuAbi = null;
6583        } else if (has32BitLibs && has64BitLibs) {
6584            // The application has both 64 and 32 bit bundled libraries. We check
6585            // here that the app declares multiArch support, and warn if it doesn't.
6586            //
6587            // We will be lenient here and record both ABIs. The primary will be the
6588            // ABI that's higher on the list, i.e, a device that's configured to prefer
6589            // 64 bit apps will see a 64 bit primary ABI,
6590
6591            if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_MULTIARCH) == 0) {
6592                Slog.e(TAG, "Package: " + pkg + " has multiple bundled libs, but is not multiarch.");
6593            }
6594
6595            if (VMRuntime.is64BitInstructionSet(getPreferredInstructionSet())) {
6596                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6597                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6598            } else {
6599                pkg.applicationInfo.primaryCpuAbi = Build.SUPPORTED_32_BIT_ABIS[0];
6600                pkg.applicationInfo.secondaryCpuAbi = Build.SUPPORTED_64_BIT_ABIS[0];
6601            }
6602        } else {
6603            pkg.applicationInfo.primaryCpuAbi = null;
6604            pkg.applicationInfo.secondaryCpuAbi = null;
6605        }
6606    }
6607
6608    private void killApplication(String pkgName, int appId, String reason) {
6609        // Request the ActivityManager to kill the process(only for existing packages)
6610        // so that we do not end up in a confused state while the user is still using the older
6611        // version of the application while the new one gets installed.
6612        IActivityManager am = ActivityManagerNative.getDefault();
6613        if (am != null) {
6614            try {
6615                am.killApplicationWithAppId(pkgName, appId, reason);
6616            } catch (RemoteException e) {
6617            }
6618        }
6619    }
6620
6621    void removePackageLI(PackageSetting ps, boolean chatty) {
6622        if (DEBUG_INSTALL) {
6623            if (chatty)
6624                Log.d(TAG, "Removing package " + ps.name);
6625        }
6626
6627        // writer
6628        synchronized (mPackages) {
6629            mPackages.remove(ps.name);
6630            final PackageParser.Package pkg = ps.pkg;
6631            if (pkg != null) {
6632                cleanPackageDataStructuresLILPw(pkg, chatty);
6633            }
6634        }
6635    }
6636
6637    void removeInstalledPackageLI(PackageParser.Package pkg, boolean chatty) {
6638        if (DEBUG_INSTALL) {
6639            if (chatty)
6640                Log.d(TAG, "Removing package " + pkg.applicationInfo.packageName);
6641        }
6642
6643        // writer
6644        synchronized (mPackages) {
6645            mPackages.remove(pkg.applicationInfo.packageName);
6646            cleanPackageDataStructuresLILPw(pkg, chatty);
6647        }
6648    }
6649
6650    void cleanPackageDataStructuresLILPw(PackageParser.Package pkg, boolean chatty) {
6651        int N = pkg.providers.size();
6652        StringBuilder r = null;
6653        int i;
6654        for (i=0; i<N; i++) {
6655            PackageParser.Provider p = pkg.providers.get(i);
6656            mProviders.removeProvider(p);
6657            if (p.info.authority == null) {
6658
6659                /* There was another ContentProvider with this authority when
6660                 * this app was installed so this authority is null,
6661                 * Ignore it as we don't have to unregister the provider.
6662                 */
6663                continue;
6664            }
6665            String names[] = p.info.authority.split(";");
6666            for (int j = 0; j < names.length; j++) {
6667                if (mProvidersByAuthority.get(names[j]) == p) {
6668                    mProvidersByAuthority.remove(names[j]);
6669                    if (DEBUG_REMOVE) {
6670                        if (chatty)
6671                            Log.d(TAG, "Unregistered content provider: " + names[j]
6672                                    + ", className = " + p.info.name + ", isSyncable = "
6673                                    + p.info.isSyncable);
6674                    }
6675                }
6676            }
6677            if (DEBUG_REMOVE && chatty) {
6678                if (r == null) {
6679                    r = new StringBuilder(256);
6680                } else {
6681                    r.append(' ');
6682                }
6683                r.append(p.info.name);
6684            }
6685        }
6686        if (r != null) {
6687            if (DEBUG_REMOVE) Log.d(TAG, "  Providers: " + r);
6688        }
6689
6690        N = pkg.services.size();
6691        r = null;
6692        for (i=0; i<N; i++) {
6693            PackageParser.Service s = pkg.services.get(i);
6694            mServices.removeService(s);
6695            if (chatty) {
6696                if (r == null) {
6697                    r = new StringBuilder(256);
6698                } else {
6699                    r.append(' ');
6700                }
6701                r.append(s.info.name);
6702            }
6703        }
6704        if (r != null) {
6705            if (DEBUG_REMOVE) Log.d(TAG, "  Services: " + r);
6706        }
6707
6708        N = pkg.receivers.size();
6709        r = null;
6710        for (i=0; i<N; i++) {
6711            PackageParser.Activity a = pkg.receivers.get(i);
6712            mReceivers.removeActivity(a, "receiver");
6713            if (DEBUG_REMOVE && chatty) {
6714                if (r == null) {
6715                    r = new StringBuilder(256);
6716                } else {
6717                    r.append(' ');
6718                }
6719                r.append(a.info.name);
6720            }
6721        }
6722        if (r != null) {
6723            if (DEBUG_REMOVE) Log.d(TAG, "  Receivers: " + r);
6724        }
6725
6726        N = pkg.activities.size();
6727        r = null;
6728        for (i=0; i<N; i++) {
6729            PackageParser.Activity a = pkg.activities.get(i);
6730            mActivities.removeActivity(a, "activity");
6731            if (DEBUG_REMOVE && chatty) {
6732                if (r == null) {
6733                    r = new StringBuilder(256);
6734                } else {
6735                    r.append(' ');
6736                }
6737                r.append(a.info.name);
6738            }
6739        }
6740        if (r != null) {
6741            if (DEBUG_REMOVE) Log.d(TAG, "  Activities: " + r);
6742        }
6743
6744        N = pkg.permissions.size();
6745        r = null;
6746        for (i=0; i<N; i++) {
6747            PackageParser.Permission p = pkg.permissions.get(i);
6748            BasePermission bp = mSettings.mPermissions.get(p.info.name);
6749            if (bp == null) {
6750                bp = mSettings.mPermissionTrees.get(p.info.name);
6751            }
6752            if (bp != null && bp.perm == p) {
6753                bp.perm = null;
6754                if (DEBUG_REMOVE && chatty) {
6755                    if (r == null) {
6756                        r = new StringBuilder(256);
6757                    } else {
6758                        r.append(' ');
6759                    }
6760                    r.append(p.info.name);
6761                }
6762            }
6763            if ((p.info.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6764                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(p.info.name);
6765                if (appOpPerms != null) {
6766                    appOpPerms.remove(pkg.packageName);
6767                }
6768            }
6769        }
6770        if (r != null) {
6771            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6772        }
6773
6774        N = pkg.requestedPermissions.size();
6775        r = null;
6776        for (i=0; i<N; i++) {
6777            String perm = pkg.requestedPermissions.get(i);
6778            BasePermission bp = mSettings.mPermissions.get(perm);
6779            if (bp != null && (bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6780                ArraySet<String> appOpPerms = mAppOpPermissionPackages.get(perm);
6781                if (appOpPerms != null) {
6782                    appOpPerms.remove(pkg.packageName);
6783                    if (appOpPerms.isEmpty()) {
6784                        mAppOpPermissionPackages.remove(perm);
6785                    }
6786                }
6787            }
6788        }
6789        if (r != null) {
6790            if (DEBUG_REMOVE) Log.d(TAG, "  Permissions: " + r);
6791        }
6792
6793        N = pkg.instrumentation.size();
6794        r = null;
6795        for (i=0; i<N; i++) {
6796            PackageParser.Instrumentation a = pkg.instrumentation.get(i);
6797            mInstrumentation.remove(a.getComponentName());
6798            if (DEBUG_REMOVE && chatty) {
6799                if (r == null) {
6800                    r = new StringBuilder(256);
6801                } else {
6802                    r.append(' ');
6803                }
6804                r.append(a.info.name);
6805            }
6806        }
6807        if (r != null) {
6808            if (DEBUG_REMOVE) Log.d(TAG, "  Instrumentation: " + r);
6809        }
6810
6811        r = null;
6812        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) {
6813            // Only system apps can hold shared libraries.
6814            if (pkg.libraryNames != null) {
6815                for (i=0; i<pkg.libraryNames.size(); i++) {
6816                    String name = pkg.libraryNames.get(i);
6817                    SharedLibraryEntry cur = mSharedLibraries.get(name);
6818                    if (cur != null && cur.apk != null && cur.apk.equals(pkg.packageName)) {
6819                        mSharedLibraries.remove(name);
6820                        if (DEBUG_REMOVE && chatty) {
6821                            if (r == null) {
6822                                r = new StringBuilder(256);
6823                            } else {
6824                                r.append(' ');
6825                            }
6826                            r.append(name);
6827                        }
6828                    }
6829                }
6830            }
6831        }
6832        if (r != null) {
6833            if (DEBUG_REMOVE) Log.d(TAG, "  Libraries: " + r);
6834        }
6835    }
6836
6837    private static boolean hasPermission(PackageParser.Package pkgInfo, String perm) {
6838        for (int i=pkgInfo.permissions.size()-1; i>=0; i--) {
6839            if (pkgInfo.permissions.get(i).info.name.equals(perm)) {
6840                return true;
6841            }
6842        }
6843        return false;
6844    }
6845
6846    static final int UPDATE_PERMISSIONS_ALL = 1<<0;
6847    static final int UPDATE_PERMISSIONS_REPLACE_PKG = 1<<1;
6848    static final int UPDATE_PERMISSIONS_REPLACE_ALL = 1<<2;
6849
6850    private void updatePermissionsLPw(String changingPkg,
6851            PackageParser.Package pkgInfo, int flags) {
6852        // Make sure there are no dangling permission trees.
6853        Iterator<BasePermission> it = mSettings.mPermissionTrees.values().iterator();
6854        while (it.hasNext()) {
6855            final BasePermission bp = it.next();
6856            if (bp.packageSetting == null) {
6857                // We may not yet have parsed the package, so just see if
6858                // we still know about its settings.
6859                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6860            }
6861            if (bp.packageSetting == null) {
6862                Slog.w(TAG, "Removing dangling permission tree: " + bp.name
6863                        + " from package " + bp.sourcePackage);
6864                it.remove();
6865            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6866                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6867                    Slog.i(TAG, "Removing old permission tree: " + bp.name
6868                            + " from package " + bp.sourcePackage);
6869                    flags |= UPDATE_PERMISSIONS_ALL;
6870                    it.remove();
6871                }
6872            }
6873        }
6874
6875        // Make sure all dynamic permissions have been assigned to a package,
6876        // and make sure there are no dangling permissions.
6877        it = mSettings.mPermissions.values().iterator();
6878        while (it.hasNext()) {
6879            final BasePermission bp = it.next();
6880            if (bp.type == BasePermission.TYPE_DYNAMIC) {
6881                if (DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
6882                        + bp.name + " pkg=" + bp.sourcePackage
6883                        + " info=" + bp.pendingInfo);
6884                if (bp.packageSetting == null && bp.pendingInfo != null) {
6885                    final BasePermission tree = findPermissionTreeLP(bp.name);
6886                    if (tree != null && tree.perm != null) {
6887                        bp.packageSetting = tree.packageSetting;
6888                        bp.perm = new PackageParser.Permission(tree.perm.owner,
6889                                new PermissionInfo(bp.pendingInfo));
6890                        bp.perm.info.packageName = tree.perm.info.packageName;
6891                        bp.perm.info.name = bp.name;
6892                        bp.uid = tree.uid;
6893                    }
6894                }
6895            }
6896            if (bp.packageSetting == null) {
6897                // We may not yet have parsed the package, so just see if
6898                // we still know about its settings.
6899                bp.packageSetting = mSettings.mPackages.get(bp.sourcePackage);
6900            }
6901            if (bp.packageSetting == null) {
6902                Slog.w(TAG, "Removing dangling permission: " + bp.name
6903                        + " from package " + bp.sourcePackage);
6904                it.remove();
6905            } else if (changingPkg != null && changingPkg.equals(bp.sourcePackage)) {
6906                if (pkgInfo == null || !hasPermission(pkgInfo, bp.name)) {
6907                    Slog.i(TAG, "Removing old permission: " + bp.name
6908                            + " from package " + bp.sourcePackage);
6909                    flags |= UPDATE_PERMISSIONS_ALL;
6910                    it.remove();
6911                }
6912            }
6913        }
6914
6915        // Now update the permissions for all packages, in particular
6916        // replace the granted permissions of the system packages.
6917        if ((flags&UPDATE_PERMISSIONS_ALL) != 0) {
6918            for (PackageParser.Package pkg : mPackages.values()) {
6919                if (pkg != pkgInfo) {
6920                    grantPermissionsLPw(pkg, (flags&UPDATE_PERMISSIONS_REPLACE_ALL) != 0,
6921                            changingPkg);
6922                }
6923            }
6924        }
6925
6926        if (pkgInfo != null) {
6927            grantPermissionsLPw(pkgInfo, (flags&UPDATE_PERMISSIONS_REPLACE_PKG) != 0, changingPkg);
6928        }
6929    }
6930
6931    private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
6932            String packageOfInterest) {
6933        final PackageSetting ps = (PackageSetting) pkg.mExtras;
6934        if (ps == null) {
6935            return;
6936        }
6937        final GrantedPermissions gp = ps.sharedUser != null ? ps.sharedUser : ps;
6938        HashSet<String> origPermissions = gp.grantedPermissions;
6939        boolean changedPermission = false;
6940
6941        if (replace) {
6942            ps.permissionsFixed = false;
6943            if (gp == ps) {
6944                origPermissions = new HashSet<String>(gp.grantedPermissions);
6945                gp.grantedPermissions.clear();
6946                gp.gids = mGlobalGids;
6947            }
6948        }
6949
6950        if (gp.gids == null) {
6951            gp.gids = mGlobalGids;
6952        }
6953
6954        final int N = pkg.requestedPermissions.size();
6955        for (int i=0; i<N; i++) {
6956            final String name = pkg.requestedPermissions.get(i);
6957            final boolean required = pkg.requestedPermissionsRequired.get(i);
6958            final BasePermission bp = mSettings.mPermissions.get(name);
6959            if (DEBUG_INSTALL) {
6960                if (gp != ps) {
6961                    Log.i(TAG, "Package " + pkg.packageName + " checking " + name + ": " + bp);
6962                }
6963            }
6964
6965            if (bp == null || bp.packageSetting == null) {
6966                if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
6967                    Slog.w(TAG, "Unknown permission " + name
6968                            + " in package " + pkg.packageName);
6969                }
6970                continue;
6971            }
6972
6973            final String perm = bp.name;
6974            boolean allowed;
6975            boolean allowedSig = false;
6976            if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) != 0) {
6977                // Keep track of app op permissions.
6978                ArraySet<String> pkgs = mAppOpPermissionPackages.get(bp.name);
6979                if (pkgs == null) {
6980                    pkgs = new ArraySet<>();
6981                    mAppOpPermissionPackages.put(bp.name, pkgs);
6982                }
6983                pkgs.add(pkg.packageName);
6984            }
6985            final int level = bp.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
6986            if (level == PermissionInfo.PROTECTION_NORMAL
6987                    || level == PermissionInfo.PROTECTION_DANGEROUS) {
6988                // We grant a normal or dangerous permission if any of the following
6989                // are true:
6990                // 1) The permission is required
6991                // 2) The permission is optional, but was granted in the past
6992                // 3) The permission is optional, but was requested by an
6993                //    app in /system (not /data)
6994                //
6995                // Otherwise, reject the permission.
6996                allowed = (required || origPermissions.contains(perm)
6997                        || (isSystemApp(ps) && !isUpdatedSystemApp(ps)));
6998            } else if (bp.packageSetting == null) {
6999                // This permission is invalid; skip it.
7000                allowed = false;
7001            } else if (level == PermissionInfo.PROTECTION_SIGNATURE) {
7002                allowed = grantSignaturePermission(perm, pkg, bp, origPermissions);
7003                if (allowed) {
7004                    allowedSig = true;
7005                }
7006            } else {
7007                allowed = false;
7008            }
7009            if (DEBUG_INSTALL) {
7010                if (gp != ps) {
7011                    Log.i(TAG, "Package " + pkg.packageName + " granting " + perm);
7012                }
7013            }
7014            if (allowed) {
7015                if (!isSystemApp(ps) && ps.permissionsFixed) {
7016                    // If this is an existing, non-system package, then
7017                    // we can't add any new permissions to it.
7018                    if (!allowedSig && !gp.grantedPermissions.contains(perm)) {
7019                        // Except...  if this is a permission that was added
7020                        // to the platform (note: need to only do this when
7021                        // updating the platform).
7022                        allowed = isNewPlatformPermissionForPackage(perm, pkg);
7023                    }
7024                }
7025                if (allowed) {
7026                    if (!gp.grantedPermissions.contains(perm)) {
7027                        changedPermission = true;
7028                        gp.grantedPermissions.add(perm);
7029                        gp.gids = appendInts(gp.gids, bp.gids);
7030                    } else if (!ps.haveGids) {
7031                        gp.gids = appendInts(gp.gids, bp.gids);
7032                    }
7033                } else {
7034                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7035                        Slog.w(TAG, "Not granting permission " + perm
7036                                + " to package " + pkg.packageName
7037                                + " because it was previously installed without");
7038                    }
7039                }
7040            } else {
7041                if (gp.grantedPermissions.remove(perm)) {
7042                    changedPermission = true;
7043                    gp.gids = removeInts(gp.gids, bp.gids);
7044                    Slog.i(TAG, "Un-granting permission " + perm
7045                            + " from package " + pkg.packageName
7046                            + " (protectionLevel=" + bp.protectionLevel
7047                            + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7048                            + ")");
7049                } else if ((bp.protectionLevel&PermissionInfo.PROTECTION_FLAG_APPOP) == 0) {
7050                    // Don't print warning for app op permissions, since it is fine for them
7051                    // not to be granted, there is a UI for the user to decide.
7052                    if (packageOfInterest == null || packageOfInterest.equals(pkg.packageName)) {
7053                        Slog.w(TAG, "Not granting permission " + perm
7054                                + " to package " + pkg.packageName
7055                                + " (protectionLevel=" + bp.protectionLevel
7056                                + " flags=0x" + Integer.toHexString(pkg.applicationInfo.flags)
7057                                + ")");
7058                    }
7059                }
7060            }
7061        }
7062
7063        if ((changedPermission || replace) && !ps.permissionsFixed &&
7064                !isSystemApp(ps) || isUpdatedSystemApp(ps)){
7065            // This is the first that we have heard about this package, so the
7066            // permissions we have now selected are fixed until explicitly
7067            // changed.
7068            ps.permissionsFixed = true;
7069        }
7070        ps.haveGids = true;
7071    }
7072
7073    private boolean isNewPlatformPermissionForPackage(String perm, PackageParser.Package pkg) {
7074        boolean allowed = false;
7075        final int NP = PackageParser.NEW_PERMISSIONS.length;
7076        for (int ip=0; ip<NP; ip++) {
7077            final PackageParser.NewPermissionInfo npi
7078                    = PackageParser.NEW_PERMISSIONS[ip];
7079            if (npi.name.equals(perm)
7080                    && pkg.applicationInfo.targetSdkVersion < npi.sdkVersion) {
7081                allowed = true;
7082                Log.i(TAG, "Auto-granting " + perm + " to old pkg "
7083                        + pkg.packageName);
7084                break;
7085            }
7086        }
7087        return allowed;
7088    }
7089
7090    private boolean grantSignaturePermission(String perm, PackageParser.Package pkg,
7091                                          BasePermission bp, HashSet<String> origPermissions) {
7092        boolean allowed;
7093        allowed = (compareSignatures(
7094                bp.packageSetting.signatures.mSignatures, pkg.mSignatures)
7095                        == PackageManager.SIGNATURE_MATCH)
7096                || (compareSignatures(mPlatformPackage.mSignatures, pkg.mSignatures)
7097                        == PackageManager.SIGNATURE_MATCH);
7098        if (!allowed && (bp.protectionLevel
7099                & PermissionInfo.PROTECTION_FLAG_SYSTEM) != 0) {
7100            if (isSystemApp(pkg)) {
7101                // For updated system applications, a system permission
7102                // is granted only if it had been defined by the original application.
7103                if (isUpdatedSystemApp(pkg)) {
7104                    final PackageSetting sysPs = mSettings
7105                            .getDisabledSystemPkgLPr(pkg.packageName);
7106                    final GrantedPermissions origGp = sysPs.sharedUser != null
7107                            ? sysPs.sharedUser : sysPs;
7108
7109                    if (origGp.grantedPermissions.contains(perm)) {
7110                        // If the original was granted this permission, we take
7111                        // that grant decision as read and propagate it to the
7112                        // update.
7113                        allowed = true;
7114                    } else {
7115                        // The system apk may have been updated with an older
7116                        // version of the one on the data partition, but which
7117                        // granted a new system permission that it didn't have
7118                        // before.  In this case we do want to allow the app to
7119                        // now get the new permission if the ancestral apk is
7120                        // privileged to get it.
7121                        if (sysPs.pkg != null && sysPs.isPrivileged()) {
7122                            for (int j=0;
7123                                    j<sysPs.pkg.requestedPermissions.size(); j++) {
7124                                if (perm.equals(
7125                                        sysPs.pkg.requestedPermissions.get(j))) {
7126                                    allowed = true;
7127                                    break;
7128                                }
7129                            }
7130                        }
7131                    }
7132                } else {
7133                    allowed = isPrivilegedApp(pkg);
7134                }
7135            }
7136        }
7137        if (!allowed && (bp.protectionLevel
7138                & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
7139            // For development permissions, a development permission
7140            // is granted only if it was already granted.
7141            allowed = origPermissions.contains(perm);
7142        }
7143        return allowed;
7144    }
7145
7146    final class ActivityIntentResolver
7147            extends IntentResolver<PackageParser.ActivityIntentInfo, ResolveInfo> {
7148        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7149                boolean defaultOnly, int userId) {
7150            if (!sUserManager.exists(userId)) return null;
7151            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7152            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7153        }
7154
7155        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7156                int userId) {
7157            if (!sUserManager.exists(userId)) return null;
7158            mFlags = flags;
7159            return super.queryIntent(intent, resolvedType,
7160                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7161        }
7162
7163        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7164                int flags, ArrayList<PackageParser.Activity> packageActivities, int userId) {
7165            if (!sUserManager.exists(userId)) return null;
7166            if (packageActivities == null) {
7167                return null;
7168            }
7169            mFlags = flags;
7170            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7171            final int N = packageActivities.size();
7172            ArrayList<PackageParser.ActivityIntentInfo[]> listCut =
7173                new ArrayList<PackageParser.ActivityIntentInfo[]>(N);
7174
7175            ArrayList<PackageParser.ActivityIntentInfo> intentFilters;
7176            for (int i = 0; i < N; ++i) {
7177                intentFilters = packageActivities.get(i).intents;
7178                if (intentFilters != null && intentFilters.size() > 0) {
7179                    PackageParser.ActivityIntentInfo[] array =
7180                            new PackageParser.ActivityIntentInfo[intentFilters.size()];
7181                    intentFilters.toArray(array);
7182                    listCut.add(array);
7183                }
7184            }
7185            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7186        }
7187
7188        public final void addActivity(PackageParser.Activity a, String type) {
7189            final boolean systemApp = isSystemApp(a.info.applicationInfo);
7190            mActivities.put(a.getComponentName(), a);
7191            if (DEBUG_SHOW_INFO)
7192                Log.v(
7193                TAG, "  " + type + " " +
7194                (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel : a.info.name) + ":");
7195            if (DEBUG_SHOW_INFO)
7196                Log.v(TAG, "    Class=" + a.info.name);
7197            final int NI = a.intents.size();
7198            for (int j=0; j<NI; j++) {
7199                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7200                if (!systemApp && intent.getPriority() > 0 && "activity".equals(type)) {
7201                    intent.setPriority(0);
7202                    Log.w(TAG, "Package " + a.info.applicationInfo.packageName + " has activity "
7203                            + a.className + " with priority > 0, forcing to 0");
7204                }
7205                if (DEBUG_SHOW_INFO) {
7206                    Log.v(TAG, "    IntentFilter:");
7207                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7208                }
7209                if (!intent.debugCheck()) {
7210                    Log.w(TAG, "==> For Activity " + a.info.name);
7211                }
7212                addFilter(intent);
7213            }
7214        }
7215
7216        public final void removeActivity(PackageParser.Activity a, String type) {
7217            mActivities.remove(a.getComponentName());
7218            if (DEBUG_SHOW_INFO) {
7219                Log.v(TAG, "  " + type + " "
7220                        + (a.info.nonLocalizedLabel != null ? a.info.nonLocalizedLabel
7221                                : a.info.name) + ":");
7222                Log.v(TAG, "    Class=" + a.info.name);
7223            }
7224            final int NI = a.intents.size();
7225            for (int j=0; j<NI; j++) {
7226                PackageParser.ActivityIntentInfo intent = a.intents.get(j);
7227                if (DEBUG_SHOW_INFO) {
7228                    Log.v(TAG, "    IntentFilter:");
7229                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7230                }
7231                removeFilter(intent);
7232            }
7233        }
7234
7235        @Override
7236        protected boolean allowFilterResult(
7237                PackageParser.ActivityIntentInfo filter, List<ResolveInfo> dest) {
7238            ActivityInfo filterAi = filter.activity.info;
7239            for (int i=dest.size()-1; i>=0; i--) {
7240                ActivityInfo destAi = dest.get(i).activityInfo;
7241                if (destAi.name == filterAi.name
7242                        && destAi.packageName == filterAi.packageName) {
7243                    return false;
7244                }
7245            }
7246            return true;
7247        }
7248
7249        @Override
7250        protected ActivityIntentInfo[] newArray(int size) {
7251            return new ActivityIntentInfo[size];
7252        }
7253
7254        @Override
7255        protected boolean isFilterStopped(PackageParser.ActivityIntentInfo filter, int userId) {
7256            if (!sUserManager.exists(userId)) return true;
7257            PackageParser.Package p = filter.activity.owner;
7258            if (p != null) {
7259                PackageSetting ps = (PackageSetting)p.mExtras;
7260                if (ps != null) {
7261                    // System apps are never considered stopped for purposes of
7262                    // filtering, because there may be no way for the user to
7263                    // actually re-launch them.
7264                    return (ps.pkgFlags&ApplicationInfo.FLAG_SYSTEM) == 0
7265                            && ps.getStopped(userId);
7266                }
7267            }
7268            return false;
7269        }
7270
7271        @Override
7272        protected boolean isPackageForFilter(String packageName,
7273                PackageParser.ActivityIntentInfo info) {
7274            return packageName.equals(info.activity.owner.packageName);
7275        }
7276
7277        @Override
7278        protected ResolveInfo newResult(PackageParser.ActivityIntentInfo info,
7279                int match, int userId) {
7280            if (!sUserManager.exists(userId)) return null;
7281            if (!mSettings.isEnabledLPr(info.activity.info, mFlags, userId)) {
7282                return null;
7283            }
7284            final PackageParser.Activity activity = info.activity;
7285            if (mSafeMode && (activity.info.applicationInfo.flags
7286                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7287                return null;
7288            }
7289            PackageSetting ps = (PackageSetting) activity.owner.mExtras;
7290            if (ps == null) {
7291                return null;
7292            }
7293            ActivityInfo ai = PackageParser.generateActivityInfo(activity, mFlags,
7294                    ps.readUserState(userId), userId);
7295            if (ai == null) {
7296                return null;
7297            }
7298            final ResolveInfo res = new ResolveInfo();
7299            res.activityInfo = ai;
7300            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7301                res.filter = info;
7302            }
7303            res.priority = info.getPriority();
7304            res.preferredOrder = activity.owner.mPreferredOrder;
7305            //System.out.println("Result: " + res.activityInfo.className +
7306            //                   " = " + res.priority);
7307            res.match = match;
7308            res.isDefault = info.hasDefault;
7309            res.labelRes = info.labelRes;
7310            res.nonLocalizedLabel = info.nonLocalizedLabel;
7311            if (userNeedsBadging(userId)) {
7312                res.noResourceId = true;
7313            } else {
7314                res.icon = info.icon;
7315            }
7316            res.system = isSystemApp(res.activityInfo.applicationInfo);
7317            return res;
7318        }
7319
7320        @Override
7321        protected void sortResults(List<ResolveInfo> results) {
7322            Collections.sort(results, mResolvePrioritySorter);
7323        }
7324
7325        @Override
7326        protected void dumpFilter(PrintWriter out, String prefix,
7327                PackageParser.ActivityIntentInfo filter) {
7328            out.print(prefix); out.print(
7329                    Integer.toHexString(System.identityHashCode(filter.activity)));
7330                    out.print(' ');
7331                    filter.activity.printComponentShortName(out);
7332                    out.print(" filter ");
7333                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7334        }
7335
7336//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7337//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7338//            final List<ResolveInfo> retList = Lists.newArrayList();
7339//            while (i.hasNext()) {
7340//                final ResolveInfo resolveInfo = i.next();
7341//                if (isEnabledLP(resolveInfo.activityInfo)) {
7342//                    retList.add(resolveInfo);
7343//                }
7344//            }
7345//            return retList;
7346//        }
7347
7348        // Keys are String (activity class name), values are Activity.
7349        private final HashMap<ComponentName, PackageParser.Activity> mActivities
7350                = new HashMap<ComponentName, PackageParser.Activity>();
7351        private int mFlags;
7352    }
7353
7354    private final class ServiceIntentResolver
7355            extends IntentResolver<PackageParser.ServiceIntentInfo, ResolveInfo> {
7356        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7357                boolean defaultOnly, int userId) {
7358            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7359            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7360        }
7361
7362        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7363                int userId) {
7364            if (!sUserManager.exists(userId)) return null;
7365            mFlags = flags;
7366            return super.queryIntent(intent, resolvedType,
7367                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7368        }
7369
7370        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7371                int flags, ArrayList<PackageParser.Service> packageServices, int userId) {
7372            if (!sUserManager.exists(userId)) return null;
7373            if (packageServices == null) {
7374                return null;
7375            }
7376            mFlags = flags;
7377            final boolean defaultOnly = (flags&PackageManager.MATCH_DEFAULT_ONLY) != 0;
7378            final int N = packageServices.size();
7379            ArrayList<PackageParser.ServiceIntentInfo[]> listCut =
7380                new ArrayList<PackageParser.ServiceIntentInfo[]>(N);
7381
7382            ArrayList<PackageParser.ServiceIntentInfo> intentFilters;
7383            for (int i = 0; i < N; ++i) {
7384                intentFilters = packageServices.get(i).intents;
7385                if (intentFilters != null && intentFilters.size() > 0) {
7386                    PackageParser.ServiceIntentInfo[] array =
7387                            new PackageParser.ServiceIntentInfo[intentFilters.size()];
7388                    intentFilters.toArray(array);
7389                    listCut.add(array);
7390                }
7391            }
7392            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7393        }
7394
7395        public final void addService(PackageParser.Service s) {
7396            mServices.put(s.getComponentName(), s);
7397            if (DEBUG_SHOW_INFO) {
7398                Log.v(TAG, "  "
7399                        + (s.info.nonLocalizedLabel != null
7400                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7401                Log.v(TAG, "    Class=" + s.info.name);
7402            }
7403            final int NI = s.intents.size();
7404            int j;
7405            for (j=0; j<NI; j++) {
7406                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7407                if (DEBUG_SHOW_INFO) {
7408                    Log.v(TAG, "    IntentFilter:");
7409                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7410                }
7411                if (!intent.debugCheck()) {
7412                    Log.w(TAG, "==> For Service " + s.info.name);
7413                }
7414                addFilter(intent);
7415            }
7416        }
7417
7418        public final void removeService(PackageParser.Service s) {
7419            mServices.remove(s.getComponentName());
7420            if (DEBUG_SHOW_INFO) {
7421                Log.v(TAG, "  " + (s.info.nonLocalizedLabel != null
7422                        ? s.info.nonLocalizedLabel : s.info.name) + ":");
7423                Log.v(TAG, "    Class=" + s.info.name);
7424            }
7425            final int NI = s.intents.size();
7426            int j;
7427            for (j=0; j<NI; j++) {
7428                PackageParser.ServiceIntentInfo intent = s.intents.get(j);
7429                if (DEBUG_SHOW_INFO) {
7430                    Log.v(TAG, "    IntentFilter:");
7431                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7432                }
7433                removeFilter(intent);
7434            }
7435        }
7436
7437        @Override
7438        protected boolean allowFilterResult(
7439                PackageParser.ServiceIntentInfo filter, List<ResolveInfo> dest) {
7440            ServiceInfo filterSi = filter.service.info;
7441            for (int i=dest.size()-1; i>=0; i--) {
7442                ServiceInfo destAi = dest.get(i).serviceInfo;
7443                if (destAi.name == filterSi.name
7444                        && destAi.packageName == filterSi.packageName) {
7445                    return false;
7446                }
7447            }
7448            return true;
7449        }
7450
7451        @Override
7452        protected PackageParser.ServiceIntentInfo[] newArray(int size) {
7453            return new PackageParser.ServiceIntentInfo[size];
7454        }
7455
7456        @Override
7457        protected boolean isFilterStopped(PackageParser.ServiceIntentInfo filter, int userId) {
7458            if (!sUserManager.exists(userId)) return true;
7459            PackageParser.Package p = filter.service.owner;
7460            if (p != null) {
7461                PackageSetting ps = (PackageSetting)p.mExtras;
7462                if (ps != null) {
7463                    // System apps are never considered stopped for purposes of
7464                    // filtering, because there may be no way for the user to
7465                    // actually re-launch them.
7466                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7467                            && ps.getStopped(userId);
7468                }
7469            }
7470            return false;
7471        }
7472
7473        @Override
7474        protected boolean isPackageForFilter(String packageName,
7475                PackageParser.ServiceIntentInfo info) {
7476            return packageName.equals(info.service.owner.packageName);
7477        }
7478
7479        @Override
7480        protected ResolveInfo newResult(PackageParser.ServiceIntentInfo filter,
7481                int match, int userId) {
7482            if (!sUserManager.exists(userId)) return null;
7483            final PackageParser.ServiceIntentInfo info = (PackageParser.ServiceIntentInfo)filter;
7484            if (!mSettings.isEnabledLPr(info.service.info, mFlags, userId)) {
7485                return null;
7486            }
7487            final PackageParser.Service service = info.service;
7488            if (mSafeMode && (service.info.applicationInfo.flags
7489                    &ApplicationInfo.FLAG_SYSTEM) == 0) {
7490                return null;
7491            }
7492            PackageSetting ps = (PackageSetting) service.owner.mExtras;
7493            if (ps == null) {
7494                return null;
7495            }
7496            ServiceInfo si = PackageParser.generateServiceInfo(service, mFlags,
7497                    ps.readUserState(userId), userId);
7498            if (si == null) {
7499                return null;
7500            }
7501            final ResolveInfo res = new ResolveInfo();
7502            res.serviceInfo = si;
7503            if ((mFlags&PackageManager.GET_RESOLVED_FILTER) != 0) {
7504                res.filter = filter;
7505            }
7506            res.priority = info.getPriority();
7507            res.preferredOrder = service.owner.mPreferredOrder;
7508            //System.out.println("Result: " + res.activityInfo.className +
7509            //                   " = " + res.priority);
7510            res.match = match;
7511            res.isDefault = info.hasDefault;
7512            res.labelRes = info.labelRes;
7513            res.nonLocalizedLabel = info.nonLocalizedLabel;
7514            res.icon = info.icon;
7515            res.system = isSystemApp(res.serviceInfo.applicationInfo);
7516            return res;
7517        }
7518
7519        @Override
7520        protected void sortResults(List<ResolveInfo> results) {
7521            Collections.sort(results, mResolvePrioritySorter);
7522        }
7523
7524        @Override
7525        protected void dumpFilter(PrintWriter out, String prefix,
7526                PackageParser.ServiceIntentInfo filter) {
7527            out.print(prefix); out.print(
7528                    Integer.toHexString(System.identityHashCode(filter.service)));
7529                    out.print(' ');
7530                    filter.service.printComponentShortName(out);
7531                    out.print(" filter ");
7532                    out.println(Integer.toHexString(System.identityHashCode(filter)));
7533        }
7534
7535//        List<ResolveInfo> filterEnabled(List<ResolveInfo> resolveInfoList) {
7536//            final Iterator<ResolveInfo> i = resolveInfoList.iterator();
7537//            final List<ResolveInfo> retList = Lists.newArrayList();
7538//            while (i.hasNext()) {
7539//                final ResolveInfo resolveInfo = (ResolveInfo) i;
7540//                if (isEnabledLP(resolveInfo.serviceInfo)) {
7541//                    retList.add(resolveInfo);
7542//                }
7543//            }
7544//            return retList;
7545//        }
7546
7547        // Keys are String (activity class name), values are Activity.
7548        private final HashMap<ComponentName, PackageParser.Service> mServices
7549                = new HashMap<ComponentName, PackageParser.Service>();
7550        private int mFlags;
7551    };
7552
7553    private final class ProviderIntentResolver
7554            extends IntentResolver<PackageParser.ProviderIntentInfo, ResolveInfo> {
7555        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType,
7556                boolean defaultOnly, int userId) {
7557            mFlags = defaultOnly ? PackageManager.MATCH_DEFAULT_ONLY : 0;
7558            return super.queryIntent(intent, resolvedType, defaultOnly, userId);
7559        }
7560
7561        public List<ResolveInfo> queryIntent(Intent intent, String resolvedType, int flags,
7562                int userId) {
7563            if (!sUserManager.exists(userId))
7564                return null;
7565            mFlags = flags;
7566            return super.queryIntent(intent, resolvedType,
7567                    (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0, userId);
7568        }
7569
7570        public List<ResolveInfo> queryIntentForPackage(Intent intent, String resolvedType,
7571                int flags, ArrayList<PackageParser.Provider> packageProviders, int userId) {
7572            if (!sUserManager.exists(userId))
7573                return null;
7574            if (packageProviders == null) {
7575                return null;
7576            }
7577            mFlags = flags;
7578            final boolean defaultOnly = (flags & PackageManager.MATCH_DEFAULT_ONLY) != 0;
7579            final int N = packageProviders.size();
7580            ArrayList<PackageParser.ProviderIntentInfo[]> listCut =
7581                    new ArrayList<PackageParser.ProviderIntentInfo[]>(N);
7582
7583            ArrayList<PackageParser.ProviderIntentInfo> intentFilters;
7584            for (int i = 0; i < N; ++i) {
7585                intentFilters = packageProviders.get(i).intents;
7586                if (intentFilters != null && intentFilters.size() > 0) {
7587                    PackageParser.ProviderIntentInfo[] array =
7588                            new PackageParser.ProviderIntentInfo[intentFilters.size()];
7589                    intentFilters.toArray(array);
7590                    listCut.add(array);
7591                }
7592            }
7593            return super.queryIntentFromList(intent, resolvedType, defaultOnly, listCut, userId);
7594        }
7595
7596        public final void addProvider(PackageParser.Provider p) {
7597            if (mProviders.containsKey(p.getComponentName())) {
7598                Slog.w(TAG, "Provider " + p.getComponentName() + " already defined; ignoring");
7599                return;
7600            }
7601
7602            mProviders.put(p.getComponentName(), p);
7603            if (DEBUG_SHOW_INFO) {
7604                Log.v(TAG, "  "
7605                        + (p.info.nonLocalizedLabel != null
7606                                ? p.info.nonLocalizedLabel : p.info.name) + ":");
7607                Log.v(TAG, "    Class=" + p.info.name);
7608            }
7609            final int NI = p.intents.size();
7610            int j;
7611            for (j = 0; j < NI; j++) {
7612                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7613                if (DEBUG_SHOW_INFO) {
7614                    Log.v(TAG, "    IntentFilter:");
7615                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7616                }
7617                if (!intent.debugCheck()) {
7618                    Log.w(TAG, "==> For Provider " + p.info.name);
7619                }
7620                addFilter(intent);
7621            }
7622        }
7623
7624        public final void removeProvider(PackageParser.Provider p) {
7625            mProviders.remove(p.getComponentName());
7626            if (DEBUG_SHOW_INFO) {
7627                Log.v(TAG, "  " + (p.info.nonLocalizedLabel != null
7628                        ? p.info.nonLocalizedLabel : p.info.name) + ":");
7629                Log.v(TAG, "    Class=" + p.info.name);
7630            }
7631            final int NI = p.intents.size();
7632            int j;
7633            for (j = 0; j < NI; j++) {
7634                PackageParser.ProviderIntentInfo intent = p.intents.get(j);
7635                if (DEBUG_SHOW_INFO) {
7636                    Log.v(TAG, "    IntentFilter:");
7637                    intent.dump(new LogPrinter(Log.VERBOSE, TAG), "      ");
7638                }
7639                removeFilter(intent);
7640            }
7641        }
7642
7643        @Override
7644        protected boolean allowFilterResult(
7645                PackageParser.ProviderIntentInfo filter, List<ResolveInfo> dest) {
7646            ProviderInfo filterPi = filter.provider.info;
7647            for (int i = dest.size() - 1; i >= 0; i--) {
7648                ProviderInfo destPi = dest.get(i).providerInfo;
7649                if (destPi.name == filterPi.name
7650                        && destPi.packageName == filterPi.packageName) {
7651                    return false;
7652                }
7653            }
7654            return true;
7655        }
7656
7657        @Override
7658        protected PackageParser.ProviderIntentInfo[] newArray(int size) {
7659            return new PackageParser.ProviderIntentInfo[size];
7660        }
7661
7662        @Override
7663        protected boolean isFilterStopped(PackageParser.ProviderIntentInfo filter, int userId) {
7664            if (!sUserManager.exists(userId))
7665                return true;
7666            PackageParser.Package p = filter.provider.owner;
7667            if (p != null) {
7668                PackageSetting ps = (PackageSetting) p.mExtras;
7669                if (ps != null) {
7670                    // System apps are never considered stopped for purposes of
7671                    // filtering, because there may be no way for the user to
7672                    // actually re-launch them.
7673                    return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0
7674                            && ps.getStopped(userId);
7675                }
7676            }
7677            return false;
7678        }
7679
7680        @Override
7681        protected boolean isPackageForFilter(String packageName,
7682                PackageParser.ProviderIntentInfo info) {
7683            return packageName.equals(info.provider.owner.packageName);
7684        }
7685
7686        @Override
7687        protected ResolveInfo newResult(PackageParser.ProviderIntentInfo filter,
7688                int match, int userId) {
7689            if (!sUserManager.exists(userId))
7690                return null;
7691            final PackageParser.ProviderIntentInfo info = filter;
7692            if (!mSettings.isEnabledLPr(info.provider.info, mFlags, userId)) {
7693                return null;
7694            }
7695            final PackageParser.Provider provider = info.provider;
7696            if (mSafeMode && (provider.info.applicationInfo.flags
7697                    & ApplicationInfo.FLAG_SYSTEM) == 0) {
7698                return null;
7699            }
7700            PackageSetting ps = (PackageSetting) provider.owner.mExtras;
7701            if (ps == null) {
7702                return null;
7703            }
7704            ProviderInfo pi = PackageParser.generateProviderInfo(provider, mFlags,
7705                    ps.readUserState(userId), userId);
7706            if (pi == null) {
7707                return null;
7708            }
7709            final ResolveInfo res = new ResolveInfo();
7710            res.providerInfo = pi;
7711            if ((mFlags & PackageManager.GET_RESOLVED_FILTER) != 0) {
7712                res.filter = filter;
7713            }
7714            res.priority = info.getPriority();
7715            res.preferredOrder = provider.owner.mPreferredOrder;
7716            res.match = match;
7717            res.isDefault = info.hasDefault;
7718            res.labelRes = info.labelRes;
7719            res.nonLocalizedLabel = info.nonLocalizedLabel;
7720            res.icon = info.icon;
7721            res.system = isSystemApp(res.providerInfo.applicationInfo);
7722            return res;
7723        }
7724
7725        @Override
7726        protected void sortResults(List<ResolveInfo> results) {
7727            Collections.sort(results, mResolvePrioritySorter);
7728        }
7729
7730        @Override
7731        protected void dumpFilter(PrintWriter out, String prefix,
7732                PackageParser.ProviderIntentInfo filter) {
7733            out.print(prefix);
7734            out.print(
7735                    Integer.toHexString(System.identityHashCode(filter.provider)));
7736            out.print(' ');
7737            filter.provider.printComponentShortName(out);
7738            out.print(" filter ");
7739            out.println(Integer.toHexString(System.identityHashCode(filter)));
7740        }
7741
7742        private final HashMap<ComponentName, PackageParser.Provider> mProviders
7743                = new HashMap<ComponentName, PackageParser.Provider>();
7744        private int mFlags;
7745    };
7746
7747    private static final Comparator<ResolveInfo> mResolvePrioritySorter =
7748            new Comparator<ResolveInfo>() {
7749        public int compare(ResolveInfo r1, ResolveInfo r2) {
7750            int v1 = r1.priority;
7751            int v2 = r2.priority;
7752            //System.out.println("Comparing: q1=" + q1 + " q2=" + q2);
7753            if (v1 != v2) {
7754                return (v1 > v2) ? -1 : 1;
7755            }
7756            v1 = r1.preferredOrder;
7757            v2 = r2.preferredOrder;
7758            if (v1 != v2) {
7759                return (v1 > v2) ? -1 : 1;
7760            }
7761            if (r1.isDefault != r2.isDefault) {
7762                return r1.isDefault ? -1 : 1;
7763            }
7764            v1 = r1.match;
7765            v2 = r2.match;
7766            //System.out.println("Comparing: m1=" + m1 + " m2=" + m2);
7767            if (v1 != v2) {
7768                return (v1 > v2) ? -1 : 1;
7769            }
7770            if (r1.system != r2.system) {
7771                return r1.system ? -1 : 1;
7772            }
7773            return 0;
7774        }
7775    };
7776
7777    private static final Comparator<ProviderInfo> mProviderInitOrderSorter =
7778            new Comparator<ProviderInfo>() {
7779        public int compare(ProviderInfo p1, ProviderInfo p2) {
7780            final int v1 = p1.initOrder;
7781            final int v2 = p2.initOrder;
7782            return (v1 > v2) ? -1 : ((v1 < v2) ? 1 : 0);
7783        }
7784    };
7785
7786    static final void sendPackageBroadcast(String action, String pkg,
7787            Bundle extras, String targetPkg, IIntentReceiver finishedReceiver,
7788            int[] userIds) {
7789        IActivityManager am = ActivityManagerNative.getDefault();
7790        if (am != null) {
7791            try {
7792                if (userIds == null) {
7793                    userIds = am.getRunningUserIds();
7794                }
7795                for (int id : userIds) {
7796                    final Intent intent = new Intent(action,
7797                            pkg != null ? Uri.fromParts("package", pkg, null) : null);
7798                    if (extras != null) {
7799                        intent.putExtras(extras);
7800                    }
7801                    if (targetPkg != null) {
7802                        intent.setPackage(targetPkg);
7803                    }
7804                    // Modify the UID when posting to other users
7805                    int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
7806                    if (uid > 0 && UserHandle.getUserId(uid) != id) {
7807                        uid = UserHandle.getUid(id, UserHandle.getAppId(uid));
7808                        intent.putExtra(Intent.EXTRA_UID, uid);
7809                    }
7810                    intent.putExtra(Intent.EXTRA_USER_HANDLE, id);
7811                    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
7812                    if (DEBUG_BROADCASTS) {
7813                        RuntimeException here = new RuntimeException("here");
7814                        here.fillInStackTrace();
7815                        Slog.d(TAG, "Sending to user " + id + ": "
7816                                + intent.toShortString(false, true, false, false)
7817                                + " " + intent.getExtras(), here);
7818                    }
7819                    am.broadcastIntent(null, intent, null, finishedReceiver,
7820                            0, null, null, null, android.app.AppOpsManager.OP_NONE,
7821                            finishedReceiver != null, false, id);
7822                }
7823            } catch (RemoteException ex) {
7824            }
7825        }
7826    }
7827
7828    /**
7829     * Check if the external storage media is available. This is true if there
7830     * is a mounted external storage medium or if the external storage is
7831     * emulated.
7832     */
7833    private boolean isExternalMediaAvailable() {
7834        return mMediaMounted || Environment.isExternalStorageEmulated();
7835    }
7836
7837    @Override
7838    public PackageCleanItem nextPackageToClean(PackageCleanItem lastPackage) {
7839        // writer
7840        synchronized (mPackages) {
7841            if (!isExternalMediaAvailable()) {
7842                // If the external storage is no longer mounted at this point,
7843                // the caller may not have been able to delete all of this
7844                // packages files and can not delete any more.  Bail.
7845                return null;
7846            }
7847            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;
7848            if (lastPackage != null) {
7849                pkgs.remove(lastPackage);
7850            }
7851            if (pkgs.size() > 0) {
7852                return pkgs.get(0);
7853            }
7854        }
7855        return null;
7856    }
7857
7858    void schedulePackageCleaning(String packageName, int userId, boolean andCode) {
7859        final Message msg = mHandler.obtainMessage(START_CLEANING_PACKAGE,
7860                userId, andCode ? 1 : 0, packageName);
7861        if (mSystemReady) {
7862            msg.sendToTarget();
7863        } else {
7864            if (mPostSystemReadyMessages == null) {
7865                mPostSystemReadyMessages = new ArrayList<>();
7866            }
7867            mPostSystemReadyMessages.add(msg);
7868        }
7869    }
7870
7871    void startCleaningPackages() {
7872        // reader
7873        synchronized (mPackages) {
7874            if (!isExternalMediaAvailable()) {
7875                return;
7876            }
7877            if (mSettings.mPackagesToBeCleaned.isEmpty()) {
7878                return;
7879            }
7880        }
7881        Intent intent = new Intent(PackageManager.ACTION_CLEAN_EXTERNAL_STORAGE);
7882        intent.setComponent(DEFAULT_CONTAINER_COMPONENT);
7883        IActivityManager am = ActivityManagerNative.getDefault();
7884        if (am != null) {
7885            try {
7886                am.startService(null, intent, null, UserHandle.USER_OWNER);
7887            } catch (RemoteException e) {
7888            }
7889        }
7890    }
7891
7892    @Override
7893    public void installPackage(String originPath, IPackageInstallObserver2 observer,
7894            int installFlags, String installerPackageName, VerificationParams verificationParams,
7895            String packageAbiOverride) {
7896        installPackageAsUser(originPath, observer, installFlags, installerPackageName, verificationParams,
7897                packageAbiOverride, UserHandle.getCallingUserId());
7898    }
7899
7900    @Override
7901    public void installPackageAsUser(String originPath, IPackageInstallObserver2 observer,
7902            int installFlags, String installerPackageName, VerificationParams verificationParams,
7903            String packageAbiOverride, int userId) {
7904        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES, null);
7905
7906        final int callingUid = Binder.getCallingUid();
7907        enforceCrossUserPermission(callingUid, userId, true, true, "installPackageAsUser");
7908
7909        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
7910            try {
7911                if (observer != null) {
7912                    observer.onPackageInstalled("", INSTALL_FAILED_USER_RESTRICTED, null, null);
7913                }
7914            } catch (RemoteException re) {
7915            }
7916            return;
7917        }
7918
7919        if ((callingUid == Process.SHELL_UID) || (callingUid == Process.ROOT_UID)) {
7920            installFlags |= PackageManager.INSTALL_FROM_ADB;
7921
7922        } else {
7923            // Caller holds INSTALL_PACKAGES permission, so we're less strict
7924            // about installerPackageName.
7925
7926            installFlags &= ~PackageManager.INSTALL_FROM_ADB;
7927            installFlags &= ~PackageManager.INSTALL_ALL_USERS;
7928        }
7929
7930        UserHandle user;
7931        if ((installFlags & PackageManager.INSTALL_ALL_USERS) != 0) {
7932            user = UserHandle.ALL;
7933        } else {
7934            user = new UserHandle(userId);
7935        }
7936
7937        verificationParams.setInstallerUid(callingUid);
7938
7939        final File originFile = new File(originPath);
7940        final OriginInfo origin = OriginInfo.fromUntrustedFile(originFile);
7941
7942        final Message msg = mHandler.obtainMessage(INIT_COPY);
7943        msg.obj = new InstallParams(origin, observer, installFlags,
7944                installerPackageName, verificationParams, user, packageAbiOverride);
7945        mHandler.sendMessage(msg);
7946    }
7947
7948    void installStage(String packageName, File stagedDir, String stagedCid,
7949            IPackageInstallObserver2 observer, PackageInstaller.SessionParams params,
7950            String installerPackageName, int installerUid, UserHandle user) {
7951        final VerificationParams verifParams = new VerificationParams(null, params.originatingUri,
7952                params.referrerUri, installerUid, null);
7953
7954        final OriginInfo origin;
7955        if (stagedDir != null) {
7956            origin = OriginInfo.fromStagedFile(stagedDir);
7957        } else {
7958            origin = OriginInfo.fromStagedContainer(stagedCid);
7959        }
7960
7961        final Message msg = mHandler.obtainMessage(INIT_COPY);
7962        msg.obj = new InstallParams(origin, observer, params.installFlags,
7963                installerPackageName, verifParams, user, params.abiOverride);
7964        mHandler.sendMessage(msg);
7965    }
7966
7967    private void sendPackageAddedForUser(String packageName, PackageSetting pkgSetting, int userId) {
7968        Bundle extras = new Bundle(1);
7969        extras.putInt(Intent.EXTRA_UID, UserHandle.getUid(userId, pkgSetting.appId));
7970
7971        sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED,
7972                packageName, extras, null, null, new int[] {userId});
7973        try {
7974            IActivityManager am = ActivityManagerNative.getDefault();
7975            final boolean isSystem =
7976                    isSystemApp(pkgSetting) || isUpdatedSystemApp(pkgSetting);
7977            if (isSystem && am.isUserRunning(userId, false)) {
7978                // The just-installed/enabled app is bundled on the system, so presumed
7979                // to be able to run automatically without needing an explicit launch.
7980                // Send it a BOOT_COMPLETED if it would ordinarily have gotten one.
7981                Intent bcIntent = new Intent(Intent.ACTION_BOOT_COMPLETED)
7982                        .addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES)
7983                        .setPackage(packageName);
7984                am.broadcastIntent(null, bcIntent, null, null, 0, null, null, null,
7985                        android.app.AppOpsManager.OP_NONE, false, false, userId);
7986            }
7987        } catch (RemoteException e) {
7988            // shouldn't happen
7989            Slog.w(TAG, "Unable to bootstrap installed package", e);
7990        }
7991    }
7992
7993    @Override
7994    public boolean setApplicationHiddenSettingAsUser(String packageName, boolean hidden,
7995            int userId) {
7996        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
7997        PackageSetting pkgSetting;
7998        final int uid = Binder.getCallingUid();
7999        enforceCrossUserPermission(uid, userId, true, true,
8000                "setApplicationHiddenSetting for user " + userId);
8001
8002        if (hidden && isPackageDeviceAdmin(packageName, userId)) {
8003            Slog.w(TAG, "Not hiding package " + packageName + ": has active device admin");
8004            return false;
8005        }
8006
8007        long callingId = Binder.clearCallingIdentity();
8008        try {
8009            boolean sendAdded = false;
8010            boolean sendRemoved = false;
8011            // writer
8012            synchronized (mPackages) {
8013                pkgSetting = mSettings.mPackages.get(packageName);
8014                if (pkgSetting == null) {
8015                    return false;
8016                }
8017                if (pkgSetting.getHidden(userId) != hidden) {
8018                    pkgSetting.setHidden(hidden, userId);
8019                    mSettings.writePackageRestrictionsLPr(userId);
8020                    if (hidden) {
8021                        sendRemoved = true;
8022                    } else {
8023                        sendAdded = true;
8024                    }
8025                }
8026            }
8027            if (sendAdded) {
8028                sendPackageAddedForUser(packageName, pkgSetting, userId);
8029                return true;
8030            }
8031            if (sendRemoved) {
8032                killApplication(packageName, UserHandle.getUid(userId, pkgSetting.appId),
8033                        "hiding pkg");
8034                sendApplicationHiddenForUser(packageName, pkgSetting, userId);
8035            }
8036        } finally {
8037            Binder.restoreCallingIdentity(callingId);
8038        }
8039        return false;
8040    }
8041
8042    private void sendApplicationHiddenForUser(String packageName, PackageSetting pkgSetting,
8043            int userId) {
8044        final PackageRemovedInfo info = new PackageRemovedInfo();
8045        info.removedPackage = packageName;
8046        info.removedUsers = new int[] {userId};
8047        info.uid = UserHandle.getUid(userId, pkgSetting.appId);
8048        info.sendBroadcast(false, false, false);
8049    }
8050
8051    /**
8052     * Returns true if application is not found or there was an error. Otherwise it returns
8053     * the hidden state of the package for the given user.
8054     */
8055    @Override
8056    public boolean getApplicationHiddenSettingAsUser(String packageName, int userId) {
8057        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null);
8058        enforceCrossUserPermission(Binder.getCallingUid(), userId, true,
8059                false, "getApplicationHidden for user " + userId);
8060        PackageSetting pkgSetting;
8061        long callingId = Binder.clearCallingIdentity();
8062        try {
8063            // writer
8064            synchronized (mPackages) {
8065                pkgSetting = mSettings.mPackages.get(packageName);
8066                if (pkgSetting == null) {
8067                    return true;
8068                }
8069                return pkgSetting.getHidden(userId);
8070            }
8071        } finally {
8072            Binder.restoreCallingIdentity(callingId);
8073        }
8074    }
8075
8076    /**
8077     * @hide
8078     */
8079    @Override
8080    public int installExistingPackageAsUser(String packageName, int userId) {
8081        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INSTALL_PACKAGES,
8082                null);
8083        PackageSetting pkgSetting;
8084        final int uid = Binder.getCallingUid();
8085        enforceCrossUserPermission(uid, userId, true, true, "installExistingPackage for user "
8086                + userId);
8087        if (isUserRestricted(userId, UserManager.DISALLOW_INSTALL_APPS)) {
8088            return PackageManager.INSTALL_FAILED_USER_RESTRICTED;
8089        }
8090
8091        long callingId = Binder.clearCallingIdentity();
8092        try {
8093            boolean sendAdded = false;
8094            Bundle extras = new Bundle(1);
8095
8096            // writer
8097            synchronized (mPackages) {
8098                pkgSetting = mSettings.mPackages.get(packageName);
8099                if (pkgSetting == null) {
8100                    return PackageManager.INSTALL_FAILED_INVALID_URI;
8101                }
8102                if (!pkgSetting.getInstalled(userId)) {
8103                    pkgSetting.setInstalled(true, userId);
8104                    pkgSetting.setHidden(false, userId);
8105                    mSettings.writePackageRestrictionsLPr(userId);
8106                    sendAdded = true;
8107                }
8108            }
8109
8110            if (sendAdded) {
8111                sendPackageAddedForUser(packageName, pkgSetting, userId);
8112            }
8113        } finally {
8114            Binder.restoreCallingIdentity(callingId);
8115        }
8116
8117        return PackageManager.INSTALL_SUCCEEDED;
8118    }
8119
8120    boolean isUserRestricted(int userId, String restrictionKey) {
8121        Bundle restrictions = sUserManager.getUserRestrictions(userId);
8122        if (restrictions.getBoolean(restrictionKey, false)) {
8123            Log.w(TAG, "User is restricted: " + restrictionKey);
8124            return true;
8125        }
8126        return false;
8127    }
8128
8129    @Override
8130    public void verifyPendingInstall(int id, int verificationCode) throws RemoteException {
8131        mContext.enforceCallingOrSelfPermission(
8132                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8133                "Only package verification agents can verify applications");
8134
8135        final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8136        final PackageVerificationResponse response = new PackageVerificationResponse(
8137                verificationCode, Binder.getCallingUid());
8138        msg.arg1 = id;
8139        msg.obj = response;
8140        mHandler.sendMessage(msg);
8141    }
8142
8143    @Override
8144    public void extendVerificationTimeout(int id, int verificationCodeAtTimeout,
8145            long millisecondsToDelay) {
8146        mContext.enforceCallingOrSelfPermission(
8147                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
8148                "Only package verification agents can extend verification timeouts");
8149
8150        final PackageVerificationState state = mPendingVerification.get(id);
8151        final PackageVerificationResponse response = new PackageVerificationResponse(
8152                verificationCodeAtTimeout, Binder.getCallingUid());
8153
8154        if (millisecondsToDelay > PackageManager.MAXIMUM_VERIFICATION_TIMEOUT) {
8155            millisecondsToDelay = PackageManager.MAXIMUM_VERIFICATION_TIMEOUT;
8156        }
8157        if (millisecondsToDelay < 0) {
8158            millisecondsToDelay = 0;
8159        }
8160        if ((verificationCodeAtTimeout != PackageManager.VERIFICATION_ALLOW)
8161                && (verificationCodeAtTimeout != PackageManager.VERIFICATION_REJECT)) {
8162            verificationCodeAtTimeout = PackageManager.VERIFICATION_REJECT;
8163        }
8164
8165        if ((state != null) && !state.timeoutExtended()) {
8166            state.extendTimeout();
8167
8168            final Message msg = mHandler.obtainMessage(PACKAGE_VERIFIED);
8169            msg.arg1 = id;
8170            msg.obj = response;
8171            mHandler.sendMessageDelayed(msg, millisecondsToDelay);
8172        }
8173    }
8174
8175    private void broadcastPackageVerified(int verificationId, Uri packageUri,
8176            int verificationCode, UserHandle user) {
8177        final Intent intent = new Intent(Intent.ACTION_PACKAGE_VERIFIED);
8178        intent.setDataAndType(packageUri, PACKAGE_MIME_TYPE);
8179        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8180        intent.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8181        intent.putExtra(PackageManager.EXTRA_VERIFICATION_RESULT, verificationCode);
8182
8183        mContext.sendBroadcastAsUser(intent, user,
8184                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT);
8185    }
8186
8187    private ComponentName matchComponentForVerifier(String packageName,
8188            List<ResolveInfo> receivers) {
8189        ActivityInfo targetReceiver = null;
8190
8191        final int NR = receivers.size();
8192        for (int i = 0; i < NR; i++) {
8193            final ResolveInfo info = receivers.get(i);
8194            if (info.activityInfo == null) {
8195                continue;
8196            }
8197
8198            if (packageName.equals(info.activityInfo.packageName)) {
8199                targetReceiver = info.activityInfo;
8200                break;
8201            }
8202        }
8203
8204        if (targetReceiver == null) {
8205            return null;
8206        }
8207
8208        return new ComponentName(targetReceiver.packageName, targetReceiver.name);
8209    }
8210
8211    private List<ComponentName> matchVerifiers(PackageInfoLite pkgInfo,
8212            List<ResolveInfo> receivers, final PackageVerificationState verificationState) {
8213        if (pkgInfo.verifiers.length == 0) {
8214            return null;
8215        }
8216
8217        final int N = pkgInfo.verifiers.length;
8218        final List<ComponentName> sufficientVerifiers = new ArrayList<ComponentName>(N + 1);
8219        for (int i = 0; i < N; i++) {
8220            final VerifierInfo verifierInfo = pkgInfo.verifiers[i];
8221
8222            final ComponentName comp = matchComponentForVerifier(verifierInfo.packageName,
8223                    receivers);
8224            if (comp == null) {
8225                continue;
8226            }
8227
8228            final int verifierUid = getUidForVerifier(verifierInfo);
8229            if (verifierUid == -1) {
8230                continue;
8231            }
8232
8233            if (DEBUG_VERIFY) {
8234                Slog.d(TAG, "Added sufficient verifier " + verifierInfo.packageName
8235                        + " with the correct signature");
8236            }
8237            sufficientVerifiers.add(comp);
8238            verificationState.addSufficientVerifier(verifierUid);
8239        }
8240
8241        return sufficientVerifiers;
8242    }
8243
8244    private int getUidForVerifier(VerifierInfo verifierInfo) {
8245        synchronized (mPackages) {
8246            final PackageParser.Package pkg = mPackages.get(verifierInfo.packageName);
8247            if (pkg == null) {
8248                return -1;
8249            } else if (pkg.mSignatures.length != 1) {
8250                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8251                        + " has more than one signature; ignoring");
8252                return -1;
8253            }
8254
8255            /*
8256             * If the public key of the package's signature does not match
8257             * our expected public key, then this is a different package and
8258             * we should skip.
8259             */
8260
8261            final byte[] expectedPublicKey;
8262            try {
8263                final Signature verifierSig = pkg.mSignatures[0];
8264                final PublicKey publicKey = verifierSig.getPublicKey();
8265                expectedPublicKey = publicKey.getEncoded();
8266            } catch (CertificateException e) {
8267                return -1;
8268            }
8269
8270            final byte[] actualPublicKey = verifierInfo.publicKey.getEncoded();
8271
8272            if (!Arrays.equals(actualPublicKey, expectedPublicKey)) {
8273                Slog.i(TAG, "Verifier package " + verifierInfo.packageName
8274                        + " does not have the expected public key; ignoring");
8275                return -1;
8276            }
8277
8278            return pkg.applicationInfo.uid;
8279        }
8280    }
8281
8282    @Override
8283    public void finishPackageInstall(int token) {
8284        enforceSystemOrRoot("Only the system is allowed to finish installs");
8285
8286        if (DEBUG_INSTALL) {
8287            Slog.v(TAG, "BM finishing package install for " + token);
8288        }
8289
8290        final Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8291        mHandler.sendMessage(msg);
8292    }
8293
8294    /**
8295     * Get the verification agent timeout.
8296     *
8297     * @return verification timeout in milliseconds
8298     */
8299    private long getVerificationTimeout() {
8300        return android.provider.Settings.Global.getLong(mContext.getContentResolver(),
8301                android.provider.Settings.Global.PACKAGE_VERIFIER_TIMEOUT,
8302                DEFAULT_VERIFICATION_TIMEOUT);
8303    }
8304
8305    /**
8306     * Get the default verification agent response code.
8307     *
8308     * @return default verification response code
8309     */
8310    private int getDefaultVerificationResponse() {
8311        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8312                android.provider.Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE,
8313                DEFAULT_VERIFICATION_RESPONSE);
8314    }
8315
8316    /**
8317     * Check whether or not package verification has been enabled.
8318     *
8319     * @return true if verification should be performed
8320     */
8321    private boolean isVerificationEnabled(int userId, int installFlags) {
8322        if (!DEFAULT_VERIFY_ENABLE) {
8323            return false;
8324        }
8325
8326        boolean ensureVerifyAppsEnabled = isUserRestricted(userId, UserManager.ENSURE_VERIFY_APPS);
8327
8328        // Check if installing from ADB
8329        if ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0) {
8330            // Do not run verification in a test harness environment
8331            if (ActivityManager.isRunningInTestHarness()) {
8332                return false;
8333            }
8334            if (ensureVerifyAppsEnabled) {
8335                return true;
8336            }
8337            // Check if the developer does not want package verification for ADB installs
8338            if (android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8339                    android.provider.Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) == 0) {
8340                return false;
8341            }
8342        }
8343
8344        if (ensureVerifyAppsEnabled) {
8345            return true;
8346        }
8347
8348        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8349                android.provider.Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 1;
8350    }
8351
8352    /**
8353     * Get the "allow unknown sources" setting.
8354     *
8355     * @return the current "allow unknown sources" setting
8356     */
8357    private int getUnknownSourcesSettings() {
8358        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
8359                android.provider.Settings.Global.INSTALL_NON_MARKET_APPS,
8360                -1);
8361    }
8362
8363    @Override
8364    public void setInstallerPackageName(String targetPackage, String installerPackageName) {
8365        final int uid = Binder.getCallingUid();
8366        // writer
8367        synchronized (mPackages) {
8368            PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
8369            if (targetPackageSetting == null) {
8370                throw new IllegalArgumentException("Unknown target package: " + targetPackage);
8371            }
8372
8373            PackageSetting installerPackageSetting;
8374            if (installerPackageName != null) {
8375                installerPackageSetting = mSettings.mPackages.get(installerPackageName);
8376                if (installerPackageSetting == null) {
8377                    throw new IllegalArgumentException("Unknown installer package: "
8378                            + installerPackageName);
8379                }
8380            } else {
8381                installerPackageSetting = null;
8382            }
8383
8384            Signature[] callerSignature;
8385            Object obj = mSettings.getUserIdLPr(uid);
8386            if (obj != null) {
8387                if (obj instanceof SharedUserSetting) {
8388                    callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
8389                } else if (obj instanceof PackageSetting) {
8390                    callerSignature = ((PackageSetting)obj).signatures.mSignatures;
8391                } else {
8392                    throw new SecurityException("Bad object " + obj + " for uid " + uid);
8393                }
8394            } else {
8395                throw new SecurityException("Unknown calling uid " + uid);
8396            }
8397
8398            // Verify: can't set installerPackageName to a package that is
8399            // not signed with the same cert as the caller.
8400            if (installerPackageSetting != null) {
8401                if (compareSignatures(callerSignature,
8402                        installerPackageSetting.signatures.mSignatures)
8403                        != PackageManager.SIGNATURE_MATCH) {
8404                    throw new SecurityException(
8405                            "Caller does not have same cert as new installer package "
8406                            + installerPackageName);
8407                }
8408            }
8409
8410            // Verify: if target already has an installer package, it must
8411            // be signed with the same cert as the caller.
8412            if (targetPackageSetting.installerPackageName != null) {
8413                PackageSetting setting = mSettings.mPackages.get(
8414                        targetPackageSetting.installerPackageName);
8415                // If the currently set package isn't valid, then it's always
8416                // okay to change it.
8417                if (setting != null) {
8418                    if (compareSignatures(callerSignature,
8419                            setting.signatures.mSignatures)
8420                            != PackageManager.SIGNATURE_MATCH) {
8421                        throw new SecurityException(
8422                                "Caller does not have same cert as old installer package "
8423                                + targetPackageSetting.installerPackageName);
8424                    }
8425                }
8426            }
8427
8428            // Okay!
8429            targetPackageSetting.installerPackageName = installerPackageName;
8430            scheduleWriteSettingsLocked();
8431        }
8432    }
8433
8434    private void processPendingInstall(final InstallArgs args, final int currentStatus) {
8435        // Queue up an async operation since the package installation may take a little while.
8436        mHandler.post(new Runnable() {
8437            public void run() {
8438                mHandler.removeCallbacks(this);
8439                 // Result object to be returned
8440                PackageInstalledInfo res = new PackageInstalledInfo();
8441                res.returnCode = currentStatus;
8442                res.uid = -1;
8443                res.pkg = null;
8444                res.removedInfo = new PackageRemovedInfo();
8445                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
8446                    args.doPreInstall(res.returnCode);
8447                    synchronized (mInstallLock) {
8448                        installPackageLI(args, res);
8449                    }
8450                    args.doPostInstall(res.returnCode, res.uid);
8451                }
8452
8453                // A restore should be performed at this point if (a) the install
8454                // succeeded, (b) the operation is not an update, and (c) the new
8455                // package has not opted out of backup participation.
8456                final boolean update = res.removedInfo.removedPackage != null;
8457                final int flags = (res.pkg == null) ? 0 : res.pkg.applicationInfo.flags;
8458                boolean doRestore = !update
8459                        && ((flags & ApplicationInfo.FLAG_ALLOW_BACKUP) != 0);
8460
8461                // Set up the post-install work request bookkeeping.  This will be used
8462                // and cleaned up by the post-install event handling regardless of whether
8463                // there's a restore pass performed.  Token values are >= 1.
8464                int token;
8465                if (mNextInstallToken < 0) mNextInstallToken = 1;
8466                token = mNextInstallToken++;
8467
8468                PostInstallData data = new PostInstallData(args, res);
8469                mRunningInstalls.put(token, data);
8470                if (DEBUG_INSTALL) Log.v(TAG, "+ starting restore round-trip " + token);
8471
8472                if (res.returnCode == PackageManager.INSTALL_SUCCEEDED && doRestore) {
8473                    // Pass responsibility to the Backup Manager.  It will perform a
8474                    // restore if appropriate, then pass responsibility back to the
8475                    // Package Manager to run the post-install observer callbacks
8476                    // and broadcasts.
8477                    IBackupManager bm = IBackupManager.Stub.asInterface(
8478                            ServiceManager.getService(Context.BACKUP_SERVICE));
8479                    if (bm != null) {
8480                        if (DEBUG_INSTALL) Log.v(TAG, "token " + token
8481                                + " to BM for possible restore");
8482                        try {
8483                            bm.restoreAtInstall(res.pkg.applicationInfo.packageName, token);
8484                        } catch (RemoteException e) {
8485                            // can't happen; the backup manager is local
8486                        } catch (Exception e) {
8487                            Slog.e(TAG, "Exception trying to enqueue restore", e);
8488                            doRestore = false;
8489                        }
8490                    } else {
8491                        Slog.e(TAG, "Backup Manager not found!");
8492                        doRestore = false;
8493                    }
8494                }
8495
8496                if (!doRestore) {
8497                    // No restore possible, or the Backup Manager was mysteriously not
8498                    // available -- just fire the post-install work request directly.
8499                    if (DEBUG_INSTALL) Log.v(TAG, "No restore - queue post-install for " + token);
8500                    Message msg = mHandler.obtainMessage(POST_INSTALL, token, 0);
8501                    mHandler.sendMessage(msg);
8502                }
8503            }
8504        });
8505    }
8506
8507    private abstract class HandlerParams {
8508        private static final int MAX_RETRIES = 4;
8509
8510        /**
8511         * Number of times startCopy() has been attempted and had a non-fatal
8512         * error.
8513         */
8514        private int mRetries = 0;
8515
8516        /** User handle for the user requesting the information or installation. */
8517        private final UserHandle mUser;
8518
8519        HandlerParams(UserHandle user) {
8520            mUser = user;
8521        }
8522
8523        UserHandle getUser() {
8524            return mUser;
8525        }
8526
8527        final boolean startCopy() {
8528            boolean res;
8529            try {
8530                if (DEBUG_INSTALL) Slog.i(TAG, "startCopy " + mUser + ": " + this);
8531
8532                if (++mRetries > MAX_RETRIES) {
8533                    Slog.w(TAG, "Failed to invoke remote methods on default container service. Giving up");
8534                    mHandler.sendEmptyMessage(MCS_GIVE_UP);
8535                    handleServiceError();
8536                    return false;
8537                } else {
8538                    handleStartCopy();
8539                    res = true;
8540                }
8541            } catch (RemoteException e) {
8542                if (DEBUG_INSTALL) Slog.i(TAG, "Posting install MCS_RECONNECT");
8543                mHandler.sendEmptyMessage(MCS_RECONNECT);
8544                res = false;
8545            }
8546            handleReturnCode();
8547            return res;
8548        }
8549
8550        final void serviceError() {
8551            if (DEBUG_INSTALL) Slog.i(TAG, "serviceError");
8552            handleServiceError();
8553            handleReturnCode();
8554        }
8555
8556        abstract void handleStartCopy() throws RemoteException;
8557        abstract void handleServiceError();
8558        abstract void handleReturnCode();
8559    }
8560
8561    class MeasureParams extends HandlerParams {
8562        private final PackageStats mStats;
8563        private boolean mSuccess;
8564
8565        private final IPackageStatsObserver mObserver;
8566
8567        public MeasureParams(PackageStats stats, IPackageStatsObserver observer) {
8568            super(new UserHandle(stats.userHandle));
8569            mObserver = observer;
8570            mStats = stats;
8571        }
8572
8573        @Override
8574        public String toString() {
8575            return "MeasureParams{"
8576                + Integer.toHexString(System.identityHashCode(this))
8577                + " " + mStats.packageName + "}";
8578        }
8579
8580        @Override
8581        void handleStartCopy() throws RemoteException {
8582            synchronized (mInstallLock) {
8583                mSuccess = getPackageSizeInfoLI(mStats.packageName, mStats.userHandle, mStats);
8584            }
8585
8586            if (mSuccess) {
8587                final boolean mounted;
8588                if (Environment.isExternalStorageEmulated()) {
8589                    mounted = true;
8590                } else {
8591                    final String status = Environment.getExternalStorageState();
8592                    mounted = (Environment.MEDIA_MOUNTED.equals(status)
8593                            || Environment.MEDIA_MOUNTED_READ_ONLY.equals(status));
8594                }
8595
8596                if (mounted) {
8597                    final UserEnvironment userEnv = new UserEnvironment(mStats.userHandle);
8598
8599                    mStats.externalCacheSize = calculateDirectorySize(mContainerService,
8600                            userEnv.buildExternalStorageAppCacheDirs(mStats.packageName));
8601
8602                    mStats.externalDataSize = calculateDirectorySize(mContainerService,
8603                            userEnv.buildExternalStorageAppDataDirs(mStats.packageName));
8604
8605                    // Always subtract cache size, since it's a subdirectory
8606                    mStats.externalDataSize -= mStats.externalCacheSize;
8607
8608                    mStats.externalMediaSize = calculateDirectorySize(mContainerService,
8609                            userEnv.buildExternalStorageAppMediaDirs(mStats.packageName));
8610
8611                    mStats.externalObbSize = calculateDirectorySize(mContainerService,
8612                            userEnv.buildExternalStorageAppObbDirs(mStats.packageName));
8613                }
8614            }
8615        }
8616
8617        @Override
8618        void handleReturnCode() {
8619            if (mObserver != null) {
8620                try {
8621                    mObserver.onGetStatsCompleted(mStats, mSuccess);
8622                } catch (RemoteException e) {
8623                    Slog.i(TAG, "Observer no longer exists.");
8624                }
8625            }
8626        }
8627
8628        @Override
8629        void handleServiceError() {
8630            Slog.e(TAG, "Could not measure application " + mStats.packageName
8631                            + " external storage");
8632        }
8633    }
8634
8635    private static long calculateDirectorySize(IMediaContainerService mcs, File[] paths)
8636            throws RemoteException {
8637        long result = 0;
8638        for (File path : paths) {
8639            result += mcs.calculateDirectorySize(path.getAbsolutePath());
8640        }
8641        return result;
8642    }
8643
8644    private static void clearDirectory(IMediaContainerService mcs, File[] paths) {
8645        for (File path : paths) {
8646            try {
8647                mcs.clearDirectory(path.getAbsolutePath());
8648            } catch (RemoteException e) {
8649            }
8650        }
8651    }
8652
8653    static class OriginInfo {
8654        /**
8655         * Location where install is coming from, before it has been
8656         * copied/renamed into place. This could be a single monolithic APK
8657         * file, or a cluster directory. This location may be untrusted.
8658         */
8659        final File file;
8660        final String cid;
8661
8662        /**
8663         * Flag indicating that {@link #file} or {@link #cid} has already been
8664         * staged, meaning downstream users don't need to defensively copy the
8665         * contents.
8666         */
8667        final boolean staged;
8668
8669        /**
8670         * Flag indicating that {@link #file} or {@link #cid} is an already
8671         * installed app that is being moved.
8672         */
8673        final boolean existing;
8674
8675        final String resolvedPath;
8676        final File resolvedFile;
8677
8678        static OriginInfo fromNothing() {
8679            return new OriginInfo(null, null, false, false);
8680        }
8681
8682        static OriginInfo fromUntrustedFile(File file) {
8683            return new OriginInfo(file, null, false, false);
8684        }
8685
8686        static OriginInfo fromExistingFile(File file) {
8687            return new OriginInfo(file, null, false, true);
8688        }
8689
8690        static OriginInfo fromStagedFile(File file) {
8691            return new OriginInfo(file, null, true, false);
8692        }
8693
8694        static OriginInfo fromStagedContainer(String cid) {
8695            return new OriginInfo(null, cid, true, false);
8696        }
8697
8698        private OriginInfo(File file, String cid, boolean staged, boolean existing) {
8699            this.file = file;
8700            this.cid = cid;
8701            this.staged = staged;
8702            this.existing = existing;
8703
8704            if (cid != null) {
8705                resolvedPath = PackageHelper.getSdDir(cid);
8706                resolvedFile = new File(resolvedPath);
8707            } else if (file != null) {
8708                resolvedPath = file.getAbsolutePath();
8709                resolvedFile = file;
8710            } else {
8711                resolvedPath = null;
8712                resolvedFile = null;
8713            }
8714        }
8715    }
8716
8717    class InstallParams extends HandlerParams {
8718        final OriginInfo origin;
8719        final IPackageInstallObserver2 observer;
8720        int installFlags;
8721        final String installerPackageName;
8722        final VerificationParams verificationParams;
8723        private InstallArgs mArgs;
8724        private int mRet;
8725        final String packageAbiOverride;
8726
8727        InstallParams(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
8728                String installerPackageName, VerificationParams verificationParams, UserHandle user,
8729                String packageAbiOverride) {
8730            super(user);
8731            this.origin = origin;
8732            this.observer = observer;
8733            this.installFlags = installFlags;
8734            this.installerPackageName = installerPackageName;
8735            this.verificationParams = verificationParams;
8736            this.packageAbiOverride = packageAbiOverride;
8737        }
8738
8739        @Override
8740        public String toString() {
8741            return "InstallParams{" + Integer.toHexString(System.identityHashCode(this))
8742                    + " file=" + origin.file + " cid=" + origin.cid + "}";
8743        }
8744
8745        public ManifestDigest getManifestDigest() {
8746            if (verificationParams == null) {
8747                return null;
8748            }
8749            return verificationParams.getManifestDigest();
8750        }
8751
8752        private int installLocationPolicy(PackageInfoLite pkgLite) {
8753            String packageName = pkgLite.packageName;
8754            int installLocation = pkgLite.installLocation;
8755            boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8756            // reader
8757            synchronized (mPackages) {
8758                PackageParser.Package pkg = mPackages.get(packageName);
8759                if (pkg != null) {
8760                    if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
8761                        // Check for downgrading.
8762                        if ((installFlags & PackageManager.INSTALL_ALLOW_DOWNGRADE) == 0) {
8763                            if (pkgLite.versionCode < pkg.mVersionCode) {
8764                                Slog.w(TAG, "Can't install update of " + packageName
8765                                        + " update version " + pkgLite.versionCode
8766                                        + " is older than installed version "
8767                                        + pkg.mVersionCode);
8768                                return PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE;
8769                            }
8770                        }
8771                        // Check for updated system application.
8772                        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
8773                            if (onSd) {
8774                                Slog.w(TAG, "Cannot install update to system app on sdcard");
8775                                return PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION;
8776                            }
8777                            return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8778                        } else {
8779                            if (onSd) {
8780                                // Install flag overrides everything.
8781                                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8782                            }
8783                            // If current upgrade specifies particular preference
8784                            if (installLocation == PackageInfo.INSTALL_LOCATION_INTERNAL_ONLY) {
8785                                // Application explicitly specified internal.
8786                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8787                            } else if (installLocation == PackageInfo.INSTALL_LOCATION_PREFER_EXTERNAL) {
8788                                // App explictly prefers external. Let policy decide
8789                            } else {
8790                                // Prefer previous location
8791                                if (isExternal(pkg)) {
8792                                    return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8793                                }
8794                                return PackageHelper.RECOMMEND_INSTALL_INTERNAL;
8795                            }
8796                        }
8797                    } else {
8798                        // Invalid install. Return error code
8799                        return PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS;
8800                    }
8801                }
8802            }
8803            // All the special cases have been taken care of.
8804            // Return result based on recommended install location.
8805            if (onSd) {
8806                return PackageHelper.RECOMMEND_INSTALL_EXTERNAL;
8807            }
8808            return pkgLite.recommendedInstallLocation;
8809        }
8810
8811        /*
8812         * Invoke remote method to get package information and install
8813         * location values. Override install location based on default
8814         * policy if needed and then create install arguments based
8815         * on the install location.
8816         */
8817        public void handleStartCopy() throws RemoteException {
8818            int ret = PackageManager.INSTALL_SUCCEEDED;
8819
8820            // If we're already staged, we've firmly committed to an install location
8821            if (origin.staged) {
8822                if (origin.file != null) {
8823                    installFlags |= PackageManager.INSTALL_INTERNAL;
8824                    installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8825                } else if (origin.cid != null) {
8826                    installFlags |= PackageManager.INSTALL_EXTERNAL;
8827                    installFlags &= ~PackageManager.INSTALL_INTERNAL;
8828                } else {
8829                    throw new IllegalStateException("Invalid stage location");
8830                }
8831            }
8832
8833            final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
8834            final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
8835
8836            PackageInfoLite pkgLite = null;
8837
8838            if (onInt && onSd) {
8839                // Check if both bits are set.
8840                Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
8841                ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8842            } else {
8843                pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
8844                        packageAbiOverride);
8845
8846                /*
8847                 * If we have too little free space, try to free cache
8848                 * before giving up.
8849                 */
8850                if (!origin.staged && pkgLite.recommendedInstallLocation
8851                        == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8852                    // TODO: focus freeing disk space on the target device
8853                    final StorageManager storage = StorageManager.from(mContext);
8854                    final long lowThreshold = storage.getStorageLowBytes(
8855                            Environment.getDataDirectory());
8856
8857                    final long sizeBytes = mContainerService.calculateInstalledSize(
8858                            origin.resolvedPath, isForwardLocked(), packageAbiOverride);
8859
8860                    if (mInstaller.freeCache(sizeBytes + lowThreshold) >= 0) {
8861                        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath,
8862                                installFlags, packageAbiOverride);
8863                    }
8864
8865                    /*
8866                     * The cache free must have deleted the file we
8867                     * downloaded to install.
8868                     *
8869                     * TODO: fix the "freeCache" call to not delete
8870                     *       the file we care about.
8871                     */
8872                    if (pkgLite.recommendedInstallLocation
8873                            == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8874                        pkgLite.recommendedInstallLocation
8875                            = PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE;
8876                    }
8877                }
8878            }
8879
8880            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8881                int loc = pkgLite.recommendedInstallLocation;
8882                if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_LOCATION) {
8883                    ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
8884                } else if (loc == PackageHelper.RECOMMEND_FAILED_ALREADY_EXISTS) {
8885                    ret = PackageManager.INSTALL_FAILED_ALREADY_EXISTS;
8886                } else if (loc == PackageHelper.RECOMMEND_FAILED_INSUFFICIENT_STORAGE) {
8887                    ret = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
8888                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_APK) {
8889                    ret = PackageManager.INSTALL_FAILED_INVALID_APK;
8890                } else if (loc == PackageHelper.RECOMMEND_FAILED_INVALID_URI) {
8891                    ret = PackageManager.INSTALL_FAILED_INVALID_URI;
8892                } else if (loc == PackageHelper.RECOMMEND_MEDIA_UNAVAILABLE) {
8893                    ret = PackageManager.INSTALL_FAILED_MEDIA_UNAVAILABLE;
8894                } else {
8895                    // Override with defaults if needed.
8896                    loc = installLocationPolicy(pkgLite);
8897                    if (loc == PackageHelper.RECOMMEND_FAILED_VERSION_DOWNGRADE) {
8898                        ret = PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
8899                    } else if (!onSd && !onInt) {
8900                        // Override install location with flags
8901                        if (loc == PackageHelper.RECOMMEND_INSTALL_EXTERNAL) {
8902                            // Set the flag to install on external media.
8903                            installFlags |= PackageManager.INSTALL_EXTERNAL;
8904                            installFlags &= ~PackageManager.INSTALL_INTERNAL;
8905                        } else {
8906                            // Make sure the flag for installing on external
8907                            // media is unset
8908                            installFlags |= PackageManager.INSTALL_INTERNAL;
8909                            installFlags &= ~PackageManager.INSTALL_EXTERNAL;
8910                        }
8911                    }
8912                }
8913            }
8914
8915            final InstallArgs args = createInstallArgs(this);
8916            mArgs = args;
8917
8918            if (ret == PackageManager.INSTALL_SUCCEEDED) {
8919                 /*
8920                 * ADB installs appear as UserHandle.USER_ALL, and can only be performed by
8921                 * UserHandle.USER_OWNER, so use the package verifier for UserHandle.USER_OWNER.
8922                 */
8923                int userIdentifier = getUser().getIdentifier();
8924                if (userIdentifier == UserHandle.USER_ALL
8925                        && ((installFlags & PackageManager.INSTALL_FROM_ADB) != 0)) {
8926                    userIdentifier = UserHandle.USER_OWNER;
8927                }
8928
8929                /*
8930                 * Determine if we have any installed package verifiers. If we
8931                 * do, then we'll defer to them to verify the packages.
8932                 */
8933                final int requiredUid = mRequiredVerifierPackage == null ? -1
8934                        : getPackageUid(mRequiredVerifierPackage, userIdentifier);
8935                if (!origin.existing && requiredUid != -1
8936                        && isVerificationEnabled(userIdentifier, installFlags)) {
8937                    final Intent verification = new Intent(
8938                            Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
8939                    verification.setDataAndType(Uri.fromFile(new File(origin.resolvedPath)),
8940                            PACKAGE_MIME_TYPE);
8941                    verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
8942
8943                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
8944                            PACKAGE_MIME_TYPE, PackageManager.GET_DISABLED_COMPONENTS,
8945                            0 /* TODO: Which userId? */);
8946
8947                    if (DEBUG_VERIFY) {
8948                        Slog.d(TAG, "Found " + receivers.size() + " verifiers for intent "
8949                                + verification.toString() + " with " + pkgLite.verifiers.length
8950                                + " optional verifiers");
8951                    }
8952
8953                    final int verificationId = mPendingVerificationToken++;
8954
8955                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_ID, verificationId);
8956
8957                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_PACKAGE,
8958                            installerPackageName);
8959
8960                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALL_FLAGS,
8961                            installFlags);
8962
8963                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_PACKAGE_NAME,
8964                            pkgLite.packageName);
8965
8966                    verification.putExtra(PackageManager.EXTRA_VERIFICATION_VERSION_CODE,
8967                            pkgLite.versionCode);
8968
8969                    if (verificationParams != null) {
8970                        if (verificationParams.getVerificationURI() != null) {
8971                           verification.putExtra(PackageManager.EXTRA_VERIFICATION_URI,
8972                                 verificationParams.getVerificationURI());
8973                        }
8974                        if (verificationParams.getOriginatingURI() != null) {
8975                            verification.putExtra(Intent.EXTRA_ORIGINATING_URI,
8976                                  verificationParams.getOriginatingURI());
8977                        }
8978                        if (verificationParams.getReferrer() != null) {
8979                            verification.putExtra(Intent.EXTRA_REFERRER,
8980                                  verificationParams.getReferrer());
8981                        }
8982                        if (verificationParams.getOriginatingUid() >= 0) {
8983                            verification.putExtra(Intent.EXTRA_ORIGINATING_UID,
8984                                  verificationParams.getOriginatingUid());
8985                        }
8986                        if (verificationParams.getInstallerUid() >= 0) {
8987                            verification.putExtra(PackageManager.EXTRA_VERIFICATION_INSTALLER_UID,
8988                                  verificationParams.getInstallerUid());
8989                        }
8990                    }
8991
8992                    final PackageVerificationState verificationState = new PackageVerificationState(
8993                            requiredUid, args);
8994
8995                    mPendingVerification.append(verificationId, verificationState);
8996
8997                    final List<ComponentName> sufficientVerifiers = matchVerifiers(pkgLite,
8998                            receivers, verificationState);
8999
9000                    /*
9001                     * If any sufficient verifiers were listed in the package
9002                     * manifest, attempt to ask them.
9003                     */
9004                    if (sufficientVerifiers != null) {
9005                        final int N = sufficientVerifiers.size();
9006                        if (N == 0) {
9007                            Slog.i(TAG, "Additional verifiers required, but none installed.");
9008                            ret = PackageManager.INSTALL_FAILED_VERIFICATION_FAILURE;
9009                        } else {
9010                            for (int i = 0; i < N; i++) {
9011                                final ComponentName verifierComponent = sufficientVerifiers.get(i);
9012
9013                                final Intent sufficientIntent = new Intent(verification);
9014                                sufficientIntent.setComponent(verifierComponent);
9015
9016                                mContext.sendBroadcastAsUser(sufficientIntent, getUser());
9017                            }
9018                        }
9019                    }
9020
9021                    final ComponentName requiredVerifierComponent = matchComponentForVerifier(
9022                            mRequiredVerifierPackage, receivers);
9023                    if (ret == PackageManager.INSTALL_SUCCEEDED
9024                            && mRequiredVerifierPackage != null) {
9025                        /*
9026                         * Send the intent to the required verification agent,
9027                         * but only start the verification timeout after the
9028                         * target BroadcastReceivers have run.
9029                         */
9030                        verification.setComponent(requiredVerifierComponent);
9031                        mContext.sendOrderedBroadcastAsUser(verification, getUser(),
9032                                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
9033                                new BroadcastReceiver() {
9034                                    @Override
9035                                    public void onReceive(Context context, Intent intent) {
9036                                        final Message msg = mHandler
9037                                                .obtainMessage(CHECK_PENDING_VERIFICATION);
9038                                        msg.arg1 = verificationId;
9039                                        mHandler.sendMessageDelayed(msg, getVerificationTimeout());
9040                                    }
9041                                }, null, 0, null, null);
9042
9043                        /*
9044                         * We don't want the copy to proceed until verification
9045                         * succeeds, so null out this field.
9046                         */
9047                        mArgs = null;
9048                    }
9049                } else {
9050                    /*
9051                     * No package verification is enabled, so immediately start
9052                     * the remote call to initiate copy using temporary file.
9053                     */
9054                    ret = args.copyApk(mContainerService, true);
9055                }
9056            }
9057
9058            mRet = ret;
9059        }
9060
9061        @Override
9062        void handleReturnCode() {
9063            // If mArgs is null, then MCS couldn't be reached. When it
9064            // reconnects, it will try again to install. At that point, this
9065            // will succeed.
9066            if (mArgs != null) {
9067                processPendingInstall(mArgs, mRet);
9068            }
9069        }
9070
9071        @Override
9072        void handleServiceError() {
9073            mArgs = createInstallArgs(this);
9074            mRet = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9075        }
9076
9077        public boolean isForwardLocked() {
9078            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9079        }
9080    }
9081
9082    /**
9083     * Used during creation of InstallArgs
9084     *
9085     * @param installFlags package installation flags
9086     * @return true if should be installed on external storage
9087     */
9088    private static boolean installOnSd(int installFlags) {
9089        if ((installFlags & PackageManager.INSTALL_INTERNAL) != 0) {
9090            return false;
9091        }
9092        if ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0) {
9093            return true;
9094        }
9095        return false;
9096    }
9097
9098    /**
9099     * Used during creation of InstallArgs
9100     *
9101     * @param installFlags package installation flags
9102     * @return true if should be installed as forward locked
9103     */
9104    private static boolean installForwardLocked(int installFlags) {
9105        return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9106    }
9107
9108    private InstallArgs createInstallArgs(InstallParams params) {
9109        if (installOnSd(params.installFlags) || params.isForwardLocked()) {
9110            return new AsecInstallArgs(params);
9111        } else {
9112            return new FileInstallArgs(params);
9113        }
9114    }
9115
9116    /**
9117     * Create args that describe an existing installed package. Typically used
9118     * when cleaning up old installs, or used as a move source.
9119     */
9120    private InstallArgs createInstallArgsForExisting(int installFlags, String codePath,
9121            String resourcePath, String nativeLibraryRoot, String[] instructionSets) {
9122        final boolean isInAsec;
9123        if (installOnSd(installFlags)) {
9124            /* Apps on SD card are always in ASEC containers. */
9125            isInAsec = true;
9126        } else if (installForwardLocked(installFlags)
9127                && !codePath.startsWith(mDrmAppPrivateInstallDir.getAbsolutePath())) {
9128            /*
9129             * Forward-locked apps are only in ASEC containers if they're the
9130             * new style
9131             */
9132            isInAsec = true;
9133        } else {
9134            isInAsec = false;
9135        }
9136
9137        if (isInAsec) {
9138            return new AsecInstallArgs(codePath, instructionSets,
9139                    installOnSd(installFlags), installForwardLocked(installFlags));
9140        } else {
9141            return new FileInstallArgs(codePath, resourcePath, nativeLibraryRoot,
9142                    instructionSets);
9143        }
9144    }
9145
9146    static abstract class InstallArgs {
9147        /** @see InstallParams#origin */
9148        final OriginInfo origin;
9149
9150        final IPackageInstallObserver2 observer;
9151        // Always refers to PackageManager flags only
9152        final int installFlags;
9153        final String installerPackageName;
9154        final ManifestDigest manifestDigest;
9155        final UserHandle user;
9156        final String abiOverride;
9157
9158        // The list of instruction sets supported by this app. This is currently
9159        // only used during the rmdex() phase to clean up resources. We can get rid of this
9160        // if we move dex files under the common app path.
9161        /* nullable */ String[] instructionSets;
9162
9163        InstallArgs(OriginInfo origin, IPackageInstallObserver2 observer, int installFlags,
9164                String installerPackageName, ManifestDigest manifestDigest, UserHandle user,
9165                String[] instructionSets, String abiOverride) {
9166            this.origin = origin;
9167            this.installFlags = installFlags;
9168            this.observer = observer;
9169            this.installerPackageName = installerPackageName;
9170            this.manifestDigest = manifestDigest;
9171            this.user = user;
9172            this.instructionSets = instructionSets;
9173            this.abiOverride = abiOverride;
9174        }
9175
9176        abstract int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException;
9177        abstract int doPreInstall(int status);
9178
9179        /**
9180         * Rename package into final resting place. All paths on the given
9181         * scanned package should be updated to reflect the rename.
9182         */
9183        abstract boolean doRename(int status, PackageParser.Package pkg, String oldCodePath);
9184        abstract int doPostInstall(int status, int uid);
9185
9186        /** @see PackageSettingBase#codePathString */
9187        abstract String getCodePath();
9188        /** @see PackageSettingBase#resourcePathString */
9189        abstract String getResourcePath();
9190        abstract String getLegacyNativeLibraryPath();
9191
9192        // Need installer lock especially for dex file removal.
9193        abstract void cleanUpResourcesLI();
9194        abstract boolean doPostDeleteLI(boolean delete);
9195        abstract boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException;
9196
9197        /**
9198         * Called before the source arguments are copied. This is used mostly
9199         * for MoveParams when it needs to read the source file to put it in the
9200         * destination.
9201         */
9202        int doPreCopy() {
9203            return PackageManager.INSTALL_SUCCEEDED;
9204        }
9205
9206        /**
9207         * Called after the source arguments are copied. This is used mostly for
9208         * MoveParams when it needs to read the source file to put it in the
9209         * destination.
9210         *
9211         * @return
9212         */
9213        int doPostCopy(int uid) {
9214            return PackageManager.INSTALL_SUCCEEDED;
9215        }
9216
9217        protected boolean isFwdLocked() {
9218            return (installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0;
9219        }
9220
9221        protected boolean isExternal() {
9222            return (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
9223        }
9224
9225        UserHandle getUser() {
9226            return user;
9227        }
9228    }
9229
9230    /**
9231     * Logic to handle installation of non-ASEC applications, including copying
9232     * and renaming logic.
9233     */
9234    class FileInstallArgs extends InstallArgs {
9235        private File codeFile;
9236        private File resourceFile;
9237        private File legacyNativeLibraryPath;
9238
9239        // Example topology:
9240        // /data/app/com.example/base.apk
9241        // /data/app/com.example/split_foo.apk
9242        // /data/app/com.example/lib/arm/libfoo.so
9243        // /data/app/com.example/lib/arm64/libfoo.so
9244        // /data/app/com.example/dalvik/arm/base.apk@classes.dex
9245
9246        /** New install */
9247        FileInstallArgs(InstallParams params) {
9248            super(params.origin, params.observer, params.installFlags,
9249                    params.installerPackageName, params.getManifestDigest(), params.getUser(),
9250                    null /* instruction sets */, params.packageAbiOverride);
9251            if (isFwdLocked()) {
9252                throw new IllegalArgumentException("Forward locking only supported in ASEC");
9253            }
9254        }
9255
9256        /** Existing install */
9257        FileInstallArgs(String codePath, String resourcePath, String legacyNativeLibraryPath,
9258                String[] instructionSets) {
9259            super(OriginInfo.fromNothing(), null, 0, null, null, null, instructionSets, null);
9260            this.codeFile = (codePath != null) ? new File(codePath) : null;
9261            this.resourceFile = (resourcePath != null) ? new File(resourcePath) : null;
9262            this.legacyNativeLibraryPath = (legacyNativeLibraryPath != null) ?
9263                    new File(legacyNativeLibraryPath) : null;
9264        }
9265
9266        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9267            final long sizeBytes = imcs.calculateInstalledSize(origin.file.getAbsolutePath(),
9268                    isFwdLocked(), abiOverride);
9269
9270            final StorageManager storage = StorageManager.from(mContext);
9271            return (sizeBytes <= storage.getStorageBytesUntilLow(Environment.getDataDirectory()));
9272        }
9273
9274        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9275            if (origin.staged) {
9276                Slog.d(TAG, origin.file + " already staged; skipping copy");
9277                codeFile = origin.file;
9278                resourceFile = origin.file;
9279                return PackageManager.INSTALL_SUCCEEDED;
9280            }
9281
9282            try {
9283                final File tempDir = mInstallerService.allocateInternalStageDirLegacy();
9284                codeFile = tempDir;
9285                resourceFile = tempDir;
9286            } catch (IOException e) {
9287                Slog.w(TAG, "Failed to create copy file: " + e);
9288                return PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;
9289            }
9290
9291            final IParcelFileDescriptorFactory target = new IParcelFileDescriptorFactory.Stub() {
9292                @Override
9293                public ParcelFileDescriptor open(String name, int mode) throws RemoteException {
9294                    if (!FileUtils.isValidExtFilename(name)) {
9295                        throw new IllegalArgumentException("Invalid filename: " + name);
9296                    }
9297                    try {
9298                        final File file = new File(codeFile, name);
9299                        final FileDescriptor fd = Os.open(file.getAbsolutePath(),
9300                                O_RDWR | O_CREAT, 0644);
9301                        Os.chmod(file.getAbsolutePath(), 0644);
9302                        return new ParcelFileDescriptor(fd);
9303                    } catch (ErrnoException e) {
9304                        throw new RemoteException("Failed to open: " + e.getMessage());
9305                    }
9306                }
9307            };
9308
9309            int ret = PackageManager.INSTALL_SUCCEEDED;
9310            ret = imcs.copyPackage(origin.file.getAbsolutePath(), target);
9311            if (ret != PackageManager.INSTALL_SUCCEEDED) {
9312                Slog.e(TAG, "Failed to copy package");
9313                return ret;
9314            }
9315
9316            final File libraryRoot = new File(codeFile, LIB_DIR_NAME);
9317            NativeLibraryHelper.Handle handle = null;
9318            try {
9319                handle = NativeLibraryHelper.Handle.create(codeFile);
9320                ret = NativeLibraryHelper.copyNativeBinariesWithOverride(handle, libraryRoot,
9321                        abiOverride);
9322            } catch (IOException e) {
9323                Slog.e(TAG, "Copying native libraries failed", e);
9324                ret = PackageManager.INSTALL_FAILED_INTERNAL_ERROR;
9325            } finally {
9326                IoUtils.closeQuietly(handle);
9327            }
9328
9329            return ret;
9330        }
9331
9332        int doPreInstall(int status) {
9333            if (status != PackageManager.INSTALL_SUCCEEDED) {
9334                cleanUp();
9335            }
9336            return status;
9337        }
9338
9339        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9340            if (status != PackageManager.INSTALL_SUCCEEDED) {
9341                cleanUp();
9342                return false;
9343            } else {
9344                final File beforeCodeFile = codeFile;
9345                final File afterCodeFile = getNextCodePath(pkg.packageName);
9346
9347                Slog.d(TAG, "Renaming " + beforeCodeFile + " to " + afterCodeFile);
9348                try {
9349                    Os.rename(beforeCodeFile.getAbsolutePath(), afterCodeFile.getAbsolutePath());
9350                } catch (ErrnoException e) {
9351                    Slog.d(TAG, "Failed to rename", e);
9352                    return false;
9353                }
9354
9355                if (!SELinux.restoreconRecursive(afterCodeFile)) {
9356                    Slog.d(TAG, "Failed to restorecon");
9357                    return false;
9358                }
9359
9360                // Reflect the rename internally
9361                codeFile = afterCodeFile;
9362                resourceFile = afterCodeFile;
9363
9364                // Reflect the rename in scanned details
9365                pkg.codePath = afterCodeFile.getAbsolutePath();
9366                pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9367                        pkg.baseCodePath);
9368                pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9369                        pkg.splitCodePaths);
9370
9371                // Reflect the rename in app info
9372                pkg.applicationInfo.setCodePath(pkg.codePath);
9373                pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9374                pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9375                pkg.applicationInfo.setResourcePath(pkg.codePath);
9376                pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9377                pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9378
9379                return true;
9380            }
9381        }
9382
9383        int doPostInstall(int status, int uid) {
9384            if (status != PackageManager.INSTALL_SUCCEEDED) {
9385                cleanUp();
9386            }
9387            return status;
9388        }
9389
9390        @Override
9391        String getCodePath() {
9392            return (codeFile != null) ? codeFile.getAbsolutePath() : null;
9393        }
9394
9395        @Override
9396        String getResourcePath() {
9397            return (resourceFile != null) ? resourceFile.getAbsolutePath() : null;
9398        }
9399
9400        @Override
9401        String getLegacyNativeLibraryPath() {
9402            return (legacyNativeLibraryPath != null) ? legacyNativeLibraryPath.getAbsolutePath() : null;
9403        }
9404
9405        private boolean cleanUp() {
9406            if (codeFile == null || !codeFile.exists()) {
9407                return false;
9408            }
9409
9410            if (codeFile.isDirectory()) {
9411                FileUtils.deleteContents(codeFile);
9412            }
9413            codeFile.delete();
9414
9415            if (resourceFile != null && !FileUtils.contains(codeFile, resourceFile)) {
9416                resourceFile.delete();
9417            }
9418
9419            if (legacyNativeLibraryPath != null && !FileUtils.contains(codeFile, legacyNativeLibraryPath)) {
9420                if (!FileUtils.deleteContents(legacyNativeLibraryPath)) {
9421                    Slog.w(TAG, "Couldn't delete native library directory " + legacyNativeLibraryPath);
9422                }
9423                legacyNativeLibraryPath.delete();
9424            }
9425
9426            return true;
9427        }
9428
9429        void cleanUpResourcesLI() {
9430            // Try enumerating all code paths before deleting
9431            List<String> allCodePaths = Collections.EMPTY_LIST;
9432            if (codeFile != null && codeFile.exists()) {
9433                try {
9434                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9435                    allCodePaths = pkg.getAllCodePaths();
9436                } catch (PackageParserException e) {
9437                    // Ignored; we tried our best
9438                }
9439            }
9440
9441            cleanUp();
9442
9443            if (!allCodePaths.isEmpty()) {
9444                if (instructionSets == null) {
9445                    throw new IllegalStateException("instructionSet == null");
9446                }
9447                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9448                for (String codePath : allCodePaths) {
9449                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9450                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9451                        if (retCode < 0) {
9452                            Slog.w(TAG, "Couldn't remove dex file for package: "
9453                                    + " at location " + codePath + ", retcode=" + retCode);
9454                            // we don't consider this to be a failure of the core package deletion
9455                        }
9456                    }
9457                }
9458            }
9459        }
9460
9461        boolean doPostDeleteLI(boolean delete) {
9462            // XXX err, shouldn't we respect the delete flag?
9463            cleanUpResourcesLI();
9464            return true;
9465        }
9466    }
9467
9468    private boolean isAsecExternal(String cid) {
9469        final String asecPath = PackageHelper.getSdFilesystem(cid);
9470        return !asecPath.startsWith(mAsecInternalPath);
9471    }
9472
9473    private static void maybeThrowExceptionForMultiArchCopy(String message, int copyRet) throws
9474            PackageManagerException {
9475        if (copyRet < 0) {
9476            if (copyRet != PackageManager.NO_NATIVE_LIBRARIES &&
9477                    copyRet != PackageManager.INSTALL_FAILED_NO_MATCHING_ABIS) {
9478                throw new PackageManagerException(copyRet, message);
9479            }
9480        }
9481    }
9482
9483    /**
9484     * Extract the MountService "container ID" from the full code path of an
9485     * .apk.
9486     */
9487    static String cidFromCodePath(String fullCodePath) {
9488        int eidx = fullCodePath.lastIndexOf("/");
9489        String subStr1 = fullCodePath.substring(0, eidx);
9490        int sidx = subStr1.lastIndexOf("/");
9491        return subStr1.substring(sidx+1, eidx);
9492    }
9493
9494    /**
9495     * Logic to handle installation of ASEC applications, including copying and
9496     * renaming logic.
9497     */
9498    class AsecInstallArgs extends InstallArgs {
9499        static final String RES_FILE_NAME = "pkg.apk";
9500        static final String PUBLIC_RES_FILE_NAME = "res.zip";
9501
9502        String cid;
9503        String packagePath;
9504        String resourcePath;
9505        String legacyNativeLibraryDir;
9506
9507        /** New install */
9508        AsecInstallArgs(InstallParams params) {
9509            super(params.origin, params.observer, params.installFlags,
9510                    params.installerPackageName, params.getManifestDigest(),
9511                    params.getUser(), null /* instruction sets */,
9512                    params.packageAbiOverride);
9513        }
9514
9515        /** Existing install */
9516        AsecInstallArgs(String fullCodePath, String[] instructionSets,
9517                        boolean isExternal, boolean isForwardLocked) {
9518            super(OriginInfo.fromNothing(), null, (isExternal ? INSTALL_EXTERNAL : 0)
9519                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9520                    instructionSets, null);
9521            // Hackily pretend we're still looking at a full code path
9522            if (!fullCodePath.endsWith(RES_FILE_NAME)) {
9523                fullCodePath = new File(fullCodePath, RES_FILE_NAME).getAbsolutePath();
9524            }
9525
9526            // Extract cid from fullCodePath
9527            int eidx = fullCodePath.lastIndexOf("/");
9528            String subStr1 = fullCodePath.substring(0, eidx);
9529            int sidx = subStr1.lastIndexOf("/");
9530            cid = subStr1.substring(sidx+1, eidx);
9531            setMountPath(subStr1);
9532        }
9533
9534        AsecInstallArgs(String cid, String[] instructionSets, boolean isForwardLocked) {
9535            super(OriginInfo.fromNothing(), null, (isAsecExternal(cid) ? INSTALL_EXTERNAL : 0)
9536                    | (isForwardLocked ? INSTALL_FORWARD_LOCK : 0), null, null, null,
9537                    instructionSets, null);
9538            this.cid = cid;
9539            setMountPath(PackageHelper.getSdDir(cid));
9540        }
9541
9542        void createCopyFile() {
9543            cid = mInstallerService.allocateExternalStageCidLegacy();
9544        }
9545
9546        boolean checkFreeStorage(IMediaContainerService imcs) throws RemoteException {
9547            final long sizeBytes = imcs.calculateInstalledSize(packagePath, isFwdLocked(),
9548                    abiOverride);
9549
9550            final File target;
9551            if (isExternal()) {
9552                target = new UserEnvironment(UserHandle.USER_OWNER).getExternalStorageDirectory();
9553            } else {
9554                target = Environment.getDataDirectory();
9555            }
9556
9557            final StorageManager storage = StorageManager.from(mContext);
9558            return (sizeBytes <= storage.getStorageBytesUntilLow(target));
9559        }
9560
9561        int copyApk(IMediaContainerService imcs, boolean temp) throws RemoteException {
9562            if (origin.staged) {
9563                Slog.d(TAG, origin.cid + " already staged; skipping copy");
9564                cid = origin.cid;
9565                setMountPath(PackageHelper.getSdDir(cid));
9566                return PackageManager.INSTALL_SUCCEEDED;
9567            }
9568
9569            if (temp) {
9570                createCopyFile();
9571            } else {
9572                /*
9573                 * Pre-emptively destroy the container since it's destroyed if
9574                 * copying fails due to it existing anyway.
9575                 */
9576                PackageHelper.destroySdDir(cid);
9577            }
9578
9579            final String newMountPath = imcs.copyPackageToContainer(
9580                    origin.file.getAbsolutePath(), cid, getEncryptKey(), isExternal(),
9581                    isFwdLocked(), deriveAbiOverride(abiOverride, null /* settings */));
9582
9583            if (newMountPath != null) {
9584                setMountPath(newMountPath);
9585                return PackageManager.INSTALL_SUCCEEDED;
9586            } else {
9587                return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9588            }
9589        }
9590
9591        @Override
9592        String getCodePath() {
9593            return packagePath;
9594        }
9595
9596        @Override
9597        String getResourcePath() {
9598            return resourcePath;
9599        }
9600
9601        @Override
9602        String getLegacyNativeLibraryPath() {
9603            return legacyNativeLibraryDir;
9604        }
9605
9606        int doPreInstall(int status) {
9607            if (status != PackageManager.INSTALL_SUCCEEDED) {
9608                // Destroy container
9609                PackageHelper.destroySdDir(cid);
9610            } else {
9611                boolean mounted = PackageHelper.isContainerMounted(cid);
9612                if (!mounted) {
9613                    String newMountPath = PackageHelper.mountSdDir(cid, getEncryptKey(),
9614                            Process.SYSTEM_UID);
9615                    if (newMountPath != null) {
9616                        setMountPath(newMountPath);
9617                    } else {
9618                        return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9619                    }
9620                }
9621            }
9622            return status;
9623        }
9624
9625        boolean doRename(int status, PackageParser.Package pkg, String oldCodePath) {
9626            String newCacheId = getNextCodePath(oldCodePath, pkg.packageName, "/" + RES_FILE_NAME);
9627            String newMountPath = null;
9628            if (PackageHelper.isContainerMounted(cid)) {
9629                // Unmount the container
9630                if (!PackageHelper.unMountSdDir(cid)) {
9631                    Slog.i(TAG, "Failed to unmount " + cid + " before renaming");
9632                    return false;
9633                }
9634            }
9635            if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9636                Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId +
9637                        " which might be stale. Will try to clean up.");
9638                // Clean up the stale container and proceed to recreate.
9639                if (!PackageHelper.destroySdDir(newCacheId)) {
9640                    Slog.e(TAG, "Very strange. Cannot clean up stale container " + newCacheId);
9641                    return false;
9642                }
9643                // Successfully cleaned up stale container. Try to rename again.
9644                if (!PackageHelper.renameSdDir(cid, newCacheId)) {
9645                    Slog.e(TAG, "Failed to rename " + cid + " to " + newCacheId
9646                            + " inspite of cleaning it up.");
9647                    return false;
9648                }
9649            }
9650            if (!PackageHelper.isContainerMounted(newCacheId)) {
9651                Slog.w(TAG, "Mounting container " + newCacheId);
9652                newMountPath = PackageHelper.mountSdDir(newCacheId,
9653                        getEncryptKey(), Process.SYSTEM_UID);
9654            } else {
9655                newMountPath = PackageHelper.getSdDir(newCacheId);
9656            }
9657            if (newMountPath == null) {
9658                Slog.w(TAG, "Failed to get cache path for  " + newCacheId);
9659                return false;
9660            }
9661            Log.i(TAG, "Succesfully renamed " + cid +
9662                    " to " + newCacheId +
9663                    " at new path: " + newMountPath);
9664            cid = newCacheId;
9665
9666            final File beforeCodeFile = new File(packagePath);
9667            setMountPath(newMountPath);
9668            final File afterCodeFile = new File(packagePath);
9669
9670            // Reflect the rename in scanned details
9671            pkg.codePath = afterCodeFile.getAbsolutePath();
9672            pkg.baseCodePath = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9673                    pkg.baseCodePath);
9674            pkg.splitCodePaths = FileUtils.rewriteAfterRename(beforeCodeFile, afterCodeFile,
9675                    pkg.splitCodePaths);
9676
9677            // Reflect the rename in app info
9678            pkg.applicationInfo.setCodePath(pkg.codePath);
9679            pkg.applicationInfo.setBaseCodePath(pkg.baseCodePath);
9680            pkg.applicationInfo.setSplitCodePaths(pkg.splitCodePaths);
9681            pkg.applicationInfo.setResourcePath(pkg.codePath);
9682            pkg.applicationInfo.setBaseResourcePath(pkg.baseCodePath);
9683            pkg.applicationInfo.setSplitResourcePaths(pkg.splitCodePaths);
9684
9685            return true;
9686        }
9687
9688        private void setMountPath(String mountPath) {
9689            final File mountFile = new File(mountPath);
9690
9691            final File monolithicFile = new File(mountFile, RES_FILE_NAME);
9692            if (monolithicFile.exists()) {
9693                packagePath = monolithicFile.getAbsolutePath();
9694                if (isFwdLocked()) {
9695                    resourcePath = new File(mountFile, PUBLIC_RES_FILE_NAME).getAbsolutePath();
9696                } else {
9697                    resourcePath = packagePath;
9698                }
9699            } else {
9700                packagePath = mountFile.getAbsolutePath();
9701                resourcePath = packagePath;
9702            }
9703
9704            legacyNativeLibraryDir = new File(mountFile, LIB_DIR_NAME).getAbsolutePath();
9705        }
9706
9707        int doPostInstall(int status, int uid) {
9708            if (status != PackageManager.INSTALL_SUCCEEDED) {
9709                cleanUp();
9710            } else {
9711                final int groupOwner;
9712                final String protectedFile;
9713                if (isFwdLocked()) {
9714                    groupOwner = UserHandle.getSharedAppGid(uid);
9715                    protectedFile = RES_FILE_NAME;
9716                } else {
9717                    groupOwner = -1;
9718                    protectedFile = null;
9719                }
9720
9721                if (uid < Process.FIRST_APPLICATION_UID
9722                        || !PackageHelper.fixSdPermissions(cid, groupOwner, protectedFile)) {
9723                    Slog.e(TAG, "Failed to finalize " + cid);
9724                    PackageHelper.destroySdDir(cid);
9725                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9726                }
9727
9728                boolean mounted = PackageHelper.isContainerMounted(cid);
9729                if (!mounted) {
9730                    PackageHelper.mountSdDir(cid, getEncryptKey(), Process.myUid());
9731                }
9732            }
9733            return status;
9734        }
9735
9736        private void cleanUp() {
9737            if (DEBUG_SD_INSTALL) Slog.i(TAG, "cleanUp");
9738
9739            // Destroy secure container
9740            PackageHelper.destroySdDir(cid);
9741        }
9742
9743        private List<String> getAllCodePaths() {
9744            final File codeFile = new File(getCodePath());
9745            if (codeFile != null && codeFile.exists()) {
9746                try {
9747                    final PackageLite pkg = PackageParser.parsePackageLite(codeFile, 0);
9748                    return pkg.getAllCodePaths();
9749                } catch (PackageParserException e) {
9750                    // Ignored; we tried our best
9751                }
9752            }
9753            return Collections.EMPTY_LIST;
9754        }
9755
9756        void cleanUpResourcesLI() {
9757            // Enumerate all code paths before deleting
9758            cleanUpResourcesLI(getAllCodePaths());
9759        }
9760
9761        private void cleanUpResourcesLI(List<String> allCodePaths) {
9762            cleanUp();
9763
9764            if (!allCodePaths.isEmpty()) {
9765                if (instructionSets == null) {
9766                    throw new IllegalStateException("instructionSet == null");
9767                }
9768                String[] dexCodeInstructionSets = getDexCodeInstructionSets(instructionSets);
9769                for (String codePath : allCodePaths) {
9770                    for (String dexCodeInstructionSet : dexCodeInstructionSets) {
9771                        int retCode = mInstaller.rmdex(codePath, dexCodeInstructionSet);
9772                        if (retCode < 0) {
9773                            Slog.w(TAG, "Couldn't remove dex file for package: "
9774                                    + " at location " + codePath + ", retcode=" + retCode);
9775                            // we don't consider this to be a failure of the core package deletion
9776                        }
9777                    }
9778                }
9779            }
9780        }
9781
9782        boolean matchContainer(String app) {
9783            if (cid.startsWith(app)) {
9784                return true;
9785            }
9786            return false;
9787        }
9788
9789        String getPackageName() {
9790            return getAsecPackageName(cid);
9791        }
9792
9793        boolean doPostDeleteLI(boolean delete) {
9794            if (DEBUG_SD_INSTALL) Slog.i(TAG, "doPostDeleteLI() del=" + delete);
9795            final List<String> allCodePaths = getAllCodePaths();
9796            boolean mounted = PackageHelper.isContainerMounted(cid);
9797            if (mounted) {
9798                // Unmount first
9799                if (PackageHelper.unMountSdDir(cid)) {
9800                    mounted = false;
9801                }
9802            }
9803            if (!mounted && delete) {
9804                cleanUpResourcesLI(allCodePaths);
9805            }
9806            return !mounted;
9807        }
9808
9809        @Override
9810        int doPreCopy() {
9811            if (isFwdLocked()) {
9812                if (!PackageHelper.fixSdPermissions(cid,
9813                        getPackageUid(DEFAULT_CONTAINER_PACKAGE, 0), RES_FILE_NAME)) {
9814                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9815                }
9816            }
9817
9818            return PackageManager.INSTALL_SUCCEEDED;
9819        }
9820
9821        @Override
9822        int doPostCopy(int uid) {
9823            if (isFwdLocked()) {
9824                if (uid < Process.FIRST_APPLICATION_UID
9825                        || !PackageHelper.fixSdPermissions(cid, UserHandle.getSharedAppGid(uid),
9826                                RES_FILE_NAME)) {
9827                    Slog.e(TAG, "Failed to finalize " + cid);
9828                    PackageHelper.destroySdDir(cid);
9829                    return PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
9830                }
9831            }
9832
9833            return PackageManager.INSTALL_SUCCEEDED;
9834        }
9835    }
9836
9837    static String getAsecPackageName(String packageCid) {
9838        int idx = packageCid.lastIndexOf("-");
9839        if (idx == -1) {
9840            return packageCid;
9841        }
9842        return packageCid.substring(0, idx);
9843    }
9844
9845    // Utility method used to create code paths based on package name and available index.
9846    private static String getNextCodePath(String oldCodePath, String prefix, String suffix) {
9847        String idxStr = "";
9848        int idx = 1;
9849        // Fall back to default value of idx=1 if prefix is not
9850        // part of oldCodePath
9851        if (oldCodePath != null) {
9852            String subStr = oldCodePath;
9853            // Drop the suffix right away
9854            if (suffix != null && subStr.endsWith(suffix)) {
9855                subStr = subStr.substring(0, subStr.length() - suffix.length());
9856            }
9857            // If oldCodePath already contains prefix find out the
9858            // ending index to either increment or decrement.
9859            int sidx = subStr.lastIndexOf(prefix);
9860            if (sidx != -1) {
9861                subStr = subStr.substring(sidx + prefix.length());
9862                if (subStr != null) {
9863                    if (subStr.startsWith(INSTALL_PACKAGE_SUFFIX)) {
9864                        subStr = subStr.substring(INSTALL_PACKAGE_SUFFIX.length());
9865                    }
9866                    try {
9867                        idx = Integer.parseInt(subStr);
9868                        if (idx <= 1) {
9869                            idx++;
9870                        } else {
9871                            idx--;
9872                        }
9873                    } catch(NumberFormatException e) {
9874                    }
9875                }
9876            }
9877        }
9878        idxStr = INSTALL_PACKAGE_SUFFIX + Integer.toString(idx);
9879        return prefix + idxStr;
9880    }
9881
9882    private File getNextCodePath(String packageName) {
9883        int suffix = 1;
9884        File result;
9885        do {
9886            result = new File(mAppInstallDir, packageName + "-" + suffix);
9887            suffix++;
9888        } while (result.exists());
9889        return result;
9890    }
9891
9892    // Utility method used to ignore ADD/REMOVE events
9893    // by directory observer.
9894    private static boolean ignoreCodePath(String fullPathStr) {
9895        String apkName = deriveCodePathName(fullPathStr);
9896        int idx = apkName.lastIndexOf(INSTALL_PACKAGE_SUFFIX);
9897        if (idx != -1 && ((idx+1) < apkName.length())) {
9898            // Make sure the package ends with a numeral
9899            String version = apkName.substring(idx+1);
9900            try {
9901                Integer.parseInt(version);
9902                return true;
9903            } catch (NumberFormatException e) {}
9904        }
9905        return false;
9906    }
9907
9908    // Utility method that returns the relative package path with respect
9909    // to the installation directory. Like say for /data/data/com.test-1.apk
9910    // string com.test-1 is returned.
9911    static String deriveCodePathName(String codePath) {
9912        if (codePath == null) {
9913            return null;
9914        }
9915        final File codeFile = new File(codePath);
9916        final String name = codeFile.getName();
9917        if (codeFile.isDirectory()) {
9918            return name;
9919        } else if (name.endsWith(".apk") || name.endsWith(".tmp")) {
9920            final int lastDot = name.lastIndexOf('.');
9921            return name.substring(0, lastDot);
9922        } else {
9923            Slog.w(TAG, "Odd, " + codePath + " doesn't look like an APK");
9924            return null;
9925        }
9926    }
9927
9928    class PackageInstalledInfo {
9929        String name;
9930        int uid;
9931        // The set of users that originally had this package installed.
9932        int[] origUsers;
9933        // The set of users that now have this package installed.
9934        int[] newUsers;
9935        PackageParser.Package pkg;
9936        int returnCode;
9937        String returnMsg;
9938        PackageRemovedInfo removedInfo;
9939
9940        public void setError(int code, String msg) {
9941            returnCode = code;
9942            returnMsg = msg;
9943            Slog.w(TAG, msg);
9944        }
9945
9946        public void setError(String msg, PackageParserException e) {
9947            returnCode = e.error;
9948            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9949            Slog.w(TAG, msg, e);
9950        }
9951
9952        public void setError(String msg, PackageManagerException e) {
9953            returnCode = e.error;
9954            returnMsg = ExceptionUtils.getCompleteMessage(msg, e);
9955            Slog.w(TAG, msg, e);
9956        }
9957
9958        // In some error cases we want to convey more info back to the observer
9959        String origPackage;
9960        String origPermission;
9961    }
9962
9963    /*
9964     * Install a non-existing package.
9965     */
9966    private void installNewPackageLI(PackageParser.Package pkg,
9967            int parseFlags, int scanFlags, UserHandle user,
9968            String installerPackageName, PackageInstalledInfo res) {
9969        // Remember this for later, in case we need to rollback this install
9970        String pkgName = pkg.packageName;
9971
9972        if (DEBUG_INSTALL) Slog.d(TAG, "installNewPackageLI: " + pkg);
9973        boolean dataDirExists = getDataPathForPackage(pkg.packageName, 0).exists();
9974        synchronized(mPackages) {
9975            if (mSettings.mRenamedPackages.containsKey(pkgName)) {
9976                // A package with the same name is already installed, though
9977                // it has been renamed to an older name.  The package we
9978                // are trying to install should be installed as an update to
9979                // the existing one, but that has not been requested, so bail.
9980                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9981                        + " without first uninstalling package running as "
9982                        + mSettings.mRenamedPackages.get(pkgName));
9983                return;
9984            }
9985            if (mPackages.containsKey(pkgName)) {
9986                // Don't allow installation over an existing package with the same name.
9987                res.setError(INSTALL_FAILED_ALREADY_EXISTS, "Attempt to re-install " + pkgName
9988                        + " without first uninstalling.");
9989                return;
9990            }
9991        }
9992
9993        try {
9994            PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags, scanFlags,
9995                    System.currentTimeMillis(), user);
9996
9997            updateSettingsLI(newPackage, installerPackageName, null, null, res);
9998            // delete the partially installed application. the data directory will have to be
9999            // restored if it was already existing
10000            if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10001                // remove package from internal structures.  Note that we want deletePackageX to
10002                // delete the package data and cache directories that it created in
10003                // scanPackageLocked, unless those directories existed before we even tried to
10004                // install.
10005                deletePackageLI(pkgName, UserHandle.ALL, false, null, null,
10006                        dataDirExists ? PackageManager.DELETE_KEEP_DATA : 0,
10007                                res.removedInfo, true);
10008            }
10009
10010        } catch (PackageManagerException e) {
10011            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10012        }
10013    }
10014
10015    private boolean checkUpgradeKeySetLP(PackageSetting oldPS, PackageParser.Package newPkg) {
10016        // Upgrade keysets are being used.  Determine if new package has a superset of the
10017        // required keys.
10018        long[] upgradeKeySets = oldPS.keySetData.getUpgradeKeySets();
10019        KeySetManagerService ksms = mSettings.mKeySetManagerService;
10020        for (int i = 0; i < upgradeKeySets.length; i++) {
10021            Set<PublicKey> upgradeSet = ksms.getPublicKeysFromKeySetLPr(upgradeKeySets[i]);
10022            if (newPkg.mSigningKeys.containsAll(upgradeSet)) {
10023                return true;
10024            }
10025        }
10026        return false;
10027    }
10028
10029    private void replacePackageLI(PackageParser.Package pkg,
10030            int parseFlags, int scanFlags, UserHandle user,
10031            String installerPackageName, PackageInstalledInfo res) {
10032        PackageParser.Package oldPackage;
10033        String pkgName = pkg.packageName;
10034        int[] allUsers;
10035        boolean[] perUserInstalled;
10036
10037        // First find the old package info and check signatures
10038        synchronized(mPackages) {
10039            oldPackage = mPackages.get(pkgName);
10040            if (DEBUG_INSTALL) Slog.d(TAG, "replacePackageLI: new=" + pkg + ", old=" + oldPackage);
10041            PackageSetting ps = mSettings.mPackages.get(pkgName);
10042            if (ps == null || !ps.keySetData.isUsingUpgradeKeySets() || ps.sharedUser != null) {
10043                // default to original signature matching
10044                if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
10045                    != PackageManager.SIGNATURE_MATCH) {
10046                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10047                            "New package has a different signature: " + pkgName);
10048                    return;
10049                }
10050            } else {
10051                if(!checkUpgradeKeySetLP(ps, pkg)) {
10052                    res.setError(INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
10053                            "New package not signed by keys specified by upgrade-keysets: "
10054                            + pkgName);
10055                    return;
10056                }
10057            }
10058
10059            // In case of rollback, remember per-user/profile install state
10060            allUsers = sUserManager.getUserIds();
10061            perUserInstalled = new boolean[allUsers.length];
10062            for (int i = 0; i < allUsers.length; i++) {
10063                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10064            }
10065        }
10066
10067        boolean sysPkg = (isSystemApp(oldPackage));
10068        if (sysPkg) {
10069            replaceSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10070                    user, allUsers, perUserInstalled, installerPackageName, res);
10071        } else {
10072            replaceNonSystemPackageLI(oldPackage, pkg, parseFlags, scanFlags,
10073                    user, allUsers, perUserInstalled, installerPackageName, res);
10074        }
10075    }
10076
10077    private void replaceNonSystemPackageLI(PackageParser.Package deletedPackage,
10078            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10079            int[] allUsers, boolean[] perUserInstalled,
10080            String installerPackageName, PackageInstalledInfo res) {
10081        String pkgName = deletedPackage.packageName;
10082        boolean deletedPkg = true;
10083        boolean updatedSettings = false;
10084
10085        if (DEBUG_INSTALL) Slog.d(TAG, "replaceNonSystemPackageLI: new=" + pkg + ", old="
10086                + deletedPackage);
10087        long origUpdateTime;
10088        if (pkg.mExtras != null) {
10089            origUpdateTime = ((PackageSetting)pkg.mExtras).lastUpdateTime;
10090        } else {
10091            origUpdateTime = 0;
10092        }
10093
10094        // First delete the existing package while retaining the data directory
10095        if (!deletePackageLI(pkgName, null, true, null, null, PackageManager.DELETE_KEEP_DATA,
10096                res.removedInfo, true)) {
10097            // If the existing package wasn't successfully deleted
10098            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE, "replaceNonSystemPackageLI");
10099            deletedPkg = false;
10100        } else {
10101            // Successfully deleted the old package; proceed with replace.
10102
10103            // If deleted package lived in a container, give users a chance to
10104            // relinquish resources before killing.
10105            if (isForwardLocked(deletedPackage) || isExternal(deletedPackage)) {
10106                if (DEBUG_INSTALL) {
10107                    Slog.i(TAG, "upgrading pkg " + deletedPackage + " is ASEC-hosted -> UNAVAILABLE");
10108                }
10109                final int[] uidArray = new int[] { deletedPackage.applicationInfo.uid };
10110                final ArrayList<String> pkgList = new ArrayList<String>(1);
10111                pkgList.add(deletedPackage.applicationInfo.packageName);
10112                sendResourcesChangedBroadcast(false, true, pkgList, uidArray, null);
10113            }
10114
10115            deleteCodeCacheDirsLI(pkgName);
10116            try {
10117                final PackageParser.Package newPackage = scanPackageLI(pkg, parseFlags,
10118                        scanFlags | SCAN_UPDATE_TIME, System.currentTimeMillis(), user);
10119                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10120                updatedSettings = true;
10121            } catch (PackageManagerException e) {
10122                res.setError("Package couldn't be installed in " + pkg.codePath, e);
10123            }
10124        }
10125
10126        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10127            // remove package from internal structures.  Note that we want deletePackageX to
10128            // delete the package data and cache directories that it created in
10129            // scanPackageLocked, unless those directories existed before we even tried to
10130            // install.
10131            if(updatedSettings) {
10132                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, rolling pack: " + pkgName);
10133                deletePackageLI(
10134                        pkgName, null, true, allUsers, perUserInstalled,
10135                        PackageManager.DELETE_KEEP_DATA,
10136                                res.removedInfo, true);
10137            }
10138            // Since we failed to install the new package we need to restore the old
10139            // package that we deleted.
10140            if (deletedPkg) {
10141                if (DEBUG_INSTALL) Slog.d(TAG, "Install failed, reinstalling: " + deletedPackage);
10142                File restoreFile = new File(deletedPackage.codePath);
10143                // Parse old package
10144                boolean oldOnSd = isExternal(deletedPackage);
10145                int oldParseFlags  = mDefParseFlags | PackageParser.PARSE_CHATTY |
10146                        (isForwardLocked(deletedPackage) ? PackageParser.PARSE_FORWARD_LOCK : 0) |
10147                        (oldOnSd ? PackageParser.PARSE_ON_SDCARD : 0);
10148                int oldScanFlags = SCAN_UPDATE_SIGNATURE | SCAN_UPDATE_TIME;
10149                try {
10150                    scanPackageLI(restoreFile, oldParseFlags, oldScanFlags, origUpdateTime, null);
10151                } catch (PackageManagerException e) {
10152                    Slog.e(TAG, "Failed to restore package : " + pkgName + " after failed upgrade: "
10153                            + e.getMessage());
10154                    return;
10155                }
10156                // Restore of old package succeeded. Update permissions.
10157                // writer
10158                synchronized (mPackages) {
10159                    updatePermissionsLPw(deletedPackage.packageName, deletedPackage,
10160                            UPDATE_PERMISSIONS_ALL);
10161                    // can downgrade to reader
10162                    mSettings.writeLPr();
10163                }
10164                Slog.i(TAG, "Successfully restored package : " + pkgName + " after failed upgrade");
10165            }
10166        }
10167    }
10168
10169    private void replaceSystemPackageLI(PackageParser.Package deletedPackage,
10170            PackageParser.Package pkg, int parseFlags, int scanFlags, UserHandle user,
10171            int[] allUsers, boolean[] perUserInstalled,
10172            String installerPackageName, PackageInstalledInfo res) {
10173        if (DEBUG_INSTALL) Slog.d(TAG, "replaceSystemPackageLI: new=" + pkg
10174                + ", old=" + deletedPackage);
10175        boolean disabledSystem = false;
10176        boolean updatedSettings = false;
10177        parseFlags |= PackageParser.PARSE_IS_SYSTEM;
10178        if ((deletedPackage.applicationInfo.flags&ApplicationInfo.FLAG_PRIVILEGED) != 0) {
10179            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10180        }
10181        String packageName = deletedPackage.packageName;
10182        if (packageName == null) {
10183            res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10184                    "Attempt to delete null packageName.");
10185            return;
10186        }
10187        PackageParser.Package oldPkg;
10188        PackageSetting oldPkgSetting;
10189        // reader
10190        synchronized (mPackages) {
10191            oldPkg = mPackages.get(packageName);
10192            oldPkgSetting = mSettings.mPackages.get(packageName);
10193            if((oldPkg == null) || (oldPkg.applicationInfo == null) ||
10194                    (oldPkgSetting == null)) {
10195                res.setError(INSTALL_FAILED_REPLACE_COULDNT_DELETE,
10196                        "Couldn't find package:" + packageName + " information");
10197                return;
10198            }
10199        }
10200
10201        killApplication(packageName, oldPkg.applicationInfo.uid, "replace sys pkg");
10202
10203        res.removedInfo.uid = oldPkg.applicationInfo.uid;
10204        res.removedInfo.removedPackage = packageName;
10205        // Remove existing system package
10206        removePackageLI(oldPkgSetting, true);
10207        // writer
10208        synchronized (mPackages) {
10209            disabledSystem = mSettings.disableSystemPackageLPw(packageName);
10210            if (!disabledSystem && deletedPackage != null) {
10211                // We didn't need to disable the .apk as a current system package,
10212                // which means we are replacing another update that is already
10213                // installed.  We need to make sure to delete the older one's .apk.
10214                res.removedInfo.args = createInstallArgsForExisting(0,
10215                        deletedPackage.applicationInfo.getCodePath(),
10216                        deletedPackage.applicationInfo.getResourcePath(),
10217                        deletedPackage.applicationInfo.nativeLibraryRootDir,
10218                        getAppDexInstructionSets(deletedPackage.applicationInfo));
10219            } else {
10220                res.removedInfo.args = null;
10221            }
10222        }
10223
10224        // Successfully disabled the old package. Now proceed with re-installation
10225        deleteCodeCacheDirsLI(packageName);
10226
10227        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10228        pkg.applicationInfo.flags |= ApplicationInfo.FLAG_UPDATED_SYSTEM_APP;
10229
10230        PackageParser.Package newPackage = null;
10231        try {
10232            newPackage = scanPackageLI(pkg, parseFlags, scanFlags, 0, user);
10233            if (newPackage.mExtras != null) {
10234                final PackageSetting newPkgSetting = (PackageSetting) newPackage.mExtras;
10235                newPkgSetting.firstInstallTime = oldPkgSetting.firstInstallTime;
10236                newPkgSetting.lastUpdateTime = System.currentTimeMillis();
10237
10238                // is the update attempting to change shared user? that isn't going to work...
10239                if (oldPkgSetting.sharedUser != newPkgSetting.sharedUser) {
10240                    res.setError(INSTALL_FAILED_SHARED_USER_INCOMPATIBLE,
10241                            "Forbidding shared user change from " + oldPkgSetting.sharedUser
10242                            + " to " + newPkgSetting.sharedUser);
10243                    updatedSettings = true;
10244                }
10245            }
10246
10247            if (res.returnCode == PackageManager.INSTALL_SUCCEEDED) {
10248                updateSettingsLI(newPackage, installerPackageName, allUsers, perUserInstalled, res);
10249                updatedSettings = true;
10250            }
10251
10252        } catch (PackageManagerException e) {
10253            res.setError("Package couldn't be installed in " + pkg.codePath, e);
10254        }
10255
10256        if (res.returnCode != PackageManager.INSTALL_SUCCEEDED) {
10257            // Re installation failed. Restore old information
10258            // Remove new pkg information
10259            if (newPackage != null) {
10260                removeInstalledPackageLI(newPackage, true);
10261            }
10262            // Add back the old system package
10263            try {
10264                scanPackageLI(oldPkg, parseFlags, SCAN_UPDATE_SIGNATURE, 0, user);
10265            } catch (PackageManagerException e) {
10266                Slog.e(TAG, "Failed to restore original package: " + e.getMessage());
10267            }
10268            // Restore the old system information in Settings
10269            synchronized (mPackages) {
10270                if (disabledSystem) {
10271                    mSettings.enableSystemPackageLPw(packageName);
10272                }
10273                if (updatedSettings) {
10274                    mSettings.setInstallerPackageName(packageName,
10275                            oldPkgSetting.installerPackageName);
10276                }
10277                mSettings.writeLPr();
10278            }
10279        }
10280    }
10281
10282    private void updateSettingsLI(PackageParser.Package newPackage, String installerPackageName,
10283            int[] allUsers, boolean[] perUserInstalled,
10284            PackageInstalledInfo res) {
10285        String pkgName = newPackage.packageName;
10286        synchronized (mPackages) {
10287            //write settings. the installStatus will be incomplete at this stage.
10288            //note that the new package setting would have already been
10289            //added to mPackages. It hasn't been persisted yet.
10290            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_INCOMPLETE);
10291            mSettings.writeLPr();
10292        }
10293
10294        if (DEBUG_INSTALL) Slog.d(TAG, "New package installed in " + newPackage.codePath);
10295
10296        synchronized (mPackages) {
10297            updatePermissionsLPw(newPackage.packageName, newPackage,
10298                    UPDATE_PERMISSIONS_REPLACE_PKG | (newPackage.permissions.size() > 0
10299                            ? UPDATE_PERMISSIONS_ALL : 0));
10300            // For system-bundled packages, we assume that installing an upgraded version
10301            // of the package implies that the user actually wants to run that new code,
10302            // so we enable the package.
10303            if (isSystemApp(newPackage)) {
10304                // NB: implicit assumption that system package upgrades apply to all users
10305                if (DEBUG_INSTALL) {
10306                    Slog.d(TAG, "Implicitly enabling system package on upgrade: " + pkgName);
10307                }
10308                PackageSetting ps = mSettings.mPackages.get(pkgName);
10309                if (ps != null) {
10310                    if (res.origUsers != null) {
10311                        for (int userHandle : res.origUsers) {
10312                            ps.setEnabled(COMPONENT_ENABLED_STATE_DEFAULT,
10313                                    userHandle, installerPackageName);
10314                        }
10315                    }
10316                    // Also convey the prior install/uninstall state
10317                    if (allUsers != null && perUserInstalled != null) {
10318                        for (int i = 0; i < allUsers.length; i++) {
10319                            if (DEBUG_INSTALL) {
10320                                Slog.d(TAG, "    user " + allUsers[i]
10321                                        + " => " + perUserInstalled[i]);
10322                            }
10323                            ps.setInstalled(perUserInstalled[i], allUsers[i]);
10324                        }
10325                        // these install state changes will be persisted in the
10326                        // upcoming call to mSettings.writeLPr().
10327                    }
10328                }
10329            }
10330            res.name = pkgName;
10331            res.uid = newPackage.applicationInfo.uid;
10332            res.pkg = newPackage;
10333            mSettings.setInstallStatus(pkgName, PackageSettingBase.PKG_INSTALL_COMPLETE);
10334            mSettings.setInstallerPackageName(pkgName, installerPackageName);
10335            res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10336            //to update install status
10337            mSettings.writeLPr();
10338        }
10339    }
10340
10341    private void installPackageLI(InstallArgs args, PackageInstalledInfo res) {
10342        final int installFlags = args.installFlags;
10343        String installerPackageName = args.installerPackageName;
10344        File tmpPackageFile = new File(args.getCodePath());
10345        boolean forwardLocked = ((installFlags & PackageManager.INSTALL_FORWARD_LOCK) != 0);
10346        boolean onSd = ((installFlags & PackageManager.INSTALL_EXTERNAL) != 0);
10347        boolean replace = false;
10348        final int scanFlags = SCAN_NEW_INSTALL | SCAN_FORCE_DEX | SCAN_UPDATE_SIGNATURE;
10349        // Result object to be returned
10350        res.returnCode = PackageManager.INSTALL_SUCCEEDED;
10351
10352        if (DEBUG_INSTALL) Slog.d(TAG, "installPackageLI: path=" + tmpPackageFile);
10353        // Retrieve PackageSettings and parse package
10354        final int parseFlags = mDefParseFlags | PackageParser.PARSE_CHATTY
10355                | (forwardLocked ? PackageParser.PARSE_FORWARD_LOCK : 0)
10356                | (onSd ? PackageParser.PARSE_ON_SDCARD : 0);
10357        PackageParser pp = new PackageParser();
10358        pp.setSeparateProcesses(mSeparateProcesses);
10359        pp.setDisplayMetrics(mMetrics);
10360
10361        final PackageParser.Package pkg;
10362        try {
10363            pkg = pp.parsePackage(tmpPackageFile, parseFlags);
10364        } catch (PackageParserException e) {
10365            res.setError("Failed parse during installPackageLI", e);
10366            return;
10367        }
10368
10369        // Mark that we have an install time CPU ABI override.
10370        pkg.cpuAbiOverride = args.abiOverride;
10371
10372        String pkgName = res.name = pkg.packageName;
10373        if ((pkg.applicationInfo.flags&ApplicationInfo.FLAG_TEST_ONLY) != 0) {
10374            if ((installFlags & PackageManager.INSTALL_ALLOW_TEST) == 0) {
10375                res.setError(INSTALL_FAILED_TEST_ONLY, "installPackageLI");
10376                return;
10377            }
10378        }
10379
10380        try {
10381            pp.collectCertificates(pkg, parseFlags);
10382            pp.collectManifestDigest(pkg);
10383        } catch (PackageParserException e) {
10384            res.setError("Failed collect during installPackageLI", e);
10385            return;
10386        }
10387
10388        /* If the installer passed in a manifest digest, compare it now. */
10389        if (args.manifestDigest != null) {
10390            if (DEBUG_INSTALL) {
10391                final String parsedManifest = pkg.manifestDigest == null ? "null"
10392                        : pkg.manifestDigest.toString();
10393                Slog.d(TAG, "Comparing manifests: " + args.manifestDigest.toString() + " vs. "
10394                        + parsedManifest);
10395            }
10396
10397            if (!args.manifestDigest.equals(pkg.manifestDigest)) {
10398                res.setError(INSTALL_FAILED_PACKAGE_CHANGED, "Manifest digest changed");
10399                return;
10400            }
10401        } else if (DEBUG_INSTALL) {
10402            final String parsedManifest = pkg.manifestDigest == null
10403                    ? "null" : pkg.manifestDigest.toString();
10404            Slog.d(TAG, "manifestDigest was not present, but parser got: " + parsedManifest);
10405        }
10406
10407        // Get rid of all references to package scan path via parser.
10408        pp = null;
10409        String oldCodePath = null;
10410        boolean systemApp = false;
10411        synchronized (mPackages) {
10412            // Check whether the newly-scanned package wants to define an already-defined perm
10413            int N = pkg.permissions.size();
10414            for (int i = N-1; i >= 0; i--) {
10415                PackageParser.Permission perm = pkg.permissions.get(i);
10416                BasePermission bp = mSettings.mPermissions.get(perm.info.name);
10417                if (bp != null) {
10418                    // If the defining package is signed with our cert, it's okay.  This
10419                    // also includes the "updating the same package" case, of course.
10420                    // "updating same package" could also involve key-rotation.
10421                    final boolean sigsOk;
10422                    if (!bp.sourcePackage.equals(pkg.packageName)
10423                            || !(bp.packageSetting instanceof PackageSetting)
10424                            || !bp.packageSetting.keySetData.isUsingUpgradeKeySets()
10425                            || ((PackageSetting) bp.packageSetting).sharedUser != null) {
10426                        sigsOk = compareSignatures(bp.packageSetting.signatures.mSignatures,
10427                                pkg.mSignatures) == PackageManager.SIGNATURE_MATCH;
10428                    } else {
10429                        sigsOk = checkUpgradeKeySetLP((PackageSetting) bp.packageSetting, pkg);
10430                    }
10431                    if (!sigsOk) {
10432                        // If the owning package is the system itself, we log but allow
10433                        // install to proceed; we fail the install on all other permission
10434                        // redefinitions.
10435                        if (!bp.sourcePackage.equals("android")) {
10436                            res.setError(INSTALL_FAILED_DUPLICATE_PERMISSION, "Package "
10437                                    + pkg.packageName + " attempting to redeclare permission "
10438                                    + perm.info.name + " already owned by " + bp.sourcePackage);
10439                            res.origPermission = perm.info.name;
10440                            res.origPackage = bp.sourcePackage;
10441                            return;
10442                        } else {
10443                            Slog.w(TAG, "Package " + pkg.packageName
10444                                    + " attempting to redeclare system permission "
10445                                    + perm.info.name + "; ignoring new declaration");
10446                            pkg.permissions.remove(i);
10447                        }
10448                    }
10449                }
10450            }
10451
10452            // Check if installing already existing package
10453            if ((installFlags & PackageManager.INSTALL_REPLACE_EXISTING) != 0) {
10454                String oldName = mSettings.mRenamedPackages.get(pkgName);
10455                if (pkg.mOriginalPackages != null
10456                        && pkg.mOriginalPackages.contains(oldName)
10457                        && mPackages.containsKey(oldName)) {
10458                    // This package is derived from an original package,
10459                    // and this device has been updating from that original
10460                    // name.  We must continue using the original name, so
10461                    // rename the new package here.
10462                    pkg.setPackageName(oldName);
10463                    pkgName = pkg.packageName;
10464                    replace = true;
10465                    if (DEBUG_INSTALL) Slog.d(TAG, "Replacing existing renamed package: oldName="
10466                            + oldName + " pkgName=" + pkgName);
10467                } else if (mPackages.containsKey(pkgName)) {
10468                    // This package, under its official name, already exists
10469                    // on the device; we should replace it.
10470                    replace = true;
10471                    if (DEBUG_INSTALL) Slog.d(TAG, "Replace existing pacakge: " + pkgName);
10472                }
10473            }
10474            PackageSetting ps = mSettings.mPackages.get(pkgName);
10475            if (ps != null) {
10476                if (DEBUG_INSTALL) Slog.d(TAG, "Existing package: " + ps);
10477                oldCodePath = mSettings.mPackages.get(pkgName).codePathString;
10478                if (ps.pkg != null && ps.pkg.applicationInfo != null) {
10479                    systemApp = (ps.pkg.applicationInfo.flags &
10480                            ApplicationInfo.FLAG_SYSTEM) != 0;
10481                }
10482                res.origUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10483            }
10484        }
10485
10486        if (systemApp && onSd) {
10487            // Disable updates to system apps on sdcard
10488            res.setError(INSTALL_FAILED_INVALID_INSTALL_LOCATION,
10489                    "Cannot install updates to system apps on sdcard");
10490            return;
10491        }
10492
10493        if (!args.doRename(res.returnCode, pkg, oldCodePath)) {
10494            res.setError(INSTALL_FAILED_INSUFFICIENT_STORAGE, "Failed rename");
10495            return;
10496        }
10497
10498        if (replace) {
10499            replacePackageLI(pkg, parseFlags, scanFlags | SCAN_REPLACING, args.user,
10500                    installerPackageName, res);
10501        } else {
10502            installNewPackageLI(pkg, parseFlags, scanFlags | SCAN_DELETE_DATA_ON_FAILURES,
10503                    args.user, installerPackageName, res);
10504        }
10505        synchronized (mPackages) {
10506            final PackageSetting ps = mSettings.mPackages.get(pkgName);
10507            if (ps != null) {
10508                res.newUsers = ps.queryInstalledUsers(sUserManager.getUserIds(), true);
10509            }
10510        }
10511    }
10512
10513    private static boolean isForwardLocked(PackageParser.Package pkg) {
10514        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10515    }
10516
10517    private static boolean isForwardLocked(ApplicationInfo info) {
10518        return (info.flags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10519    }
10520
10521    private boolean isForwardLocked(PackageSetting ps) {
10522        return (ps.pkgFlags & ApplicationInfo.FLAG_FORWARD_LOCK) != 0;
10523    }
10524
10525    private static boolean isMultiArch(PackageSetting ps) {
10526        return (ps.pkgFlags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10527    }
10528
10529    private static boolean isMultiArch(ApplicationInfo info) {
10530        return (info.flags & ApplicationInfo.FLAG_MULTIARCH) != 0;
10531    }
10532
10533    private static boolean isExternal(PackageParser.Package pkg) {
10534        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10535    }
10536
10537    private static boolean isExternal(PackageSetting ps) {
10538        return (ps.pkgFlags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10539    }
10540
10541    private static boolean isExternal(ApplicationInfo info) {
10542        return (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
10543    }
10544
10545    private static boolean isSystemApp(PackageParser.Package pkg) {
10546        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10547    }
10548
10549    private static boolean isPrivilegedApp(PackageParser.Package pkg) {
10550        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_PRIVILEGED) != 0;
10551    }
10552
10553    private static boolean isSystemApp(ApplicationInfo info) {
10554        return (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
10555    }
10556
10557    private static boolean isSystemApp(PackageSetting ps) {
10558        return (ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0;
10559    }
10560
10561    private static boolean isUpdatedSystemApp(PackageSetting ps) {
10562        return (ps.pkgFlags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10563    }
10564
10565    private static boolean isUpdatedSystemApp(PackageParser.Package pkg) {
10566        return (pkg.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10567    }
10568
10569    private static boolean isUpdatedSystemApp(ApplicationInfo info) {
10570        return (info.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0;
10571    }
10572
10573    private int packageFlagsToInstallFlags(PackageSetting ps) {
10574        int installFlags = 0;
10575        if (isExternal(ps)) {
10576            installFlags |= PackageManager.INSTALL_EXTERNAL;
10577        }
10578        if (isForwardLocked(ps)) {
10579            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
10580        }
10581        return installFlags;
10582    }
10583
10584    private void deleteTempPackageFiles() {
10585        final FilenameFilter filter = new FilenameFilter() {
10586            public boolean accept(File dir, String name) {
10587                return name.startsWith("vmdl") && name.endsWith(".tmp");
10588            }
10589        };
10590        for (File file : mDrmAppPrivateInstallDir.listFiles(filter)) {
10591            file.delete();
10592        }
10593    }
10594
10595    @Override
10596    public void deletePackageAsUser(String packageName, IPackageDeleteObserver observer, int userId,
10597            int flags) {
10598        deletePackage(packageName, new LegacyPackageDeleteObserver(observer).getBinder(), userId,
10599                flags);
10600    }
10601
10602    @Override
10603    public void deletePackage(final String packageName,
10604            final IPackageDeleteObserver2 observer, final int userId, final int flags) {
10605        mContext.enforceCallingOrSelfPermission(
10606                android.Manifest.permission.DELETE_PACKAGES, null);
10607        final int uid = Binder.getCallingUid();
10608        if (UserHandle.getUserId(uid) != userId) {
10609            mContext.enforceCallingPermission(
10610                    android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
10611                    "deletePackage for user " + userId);
10612        }
10613        if (isUserRestricted(userId, UserManager.DISALLOW_UNINSTALL_APPS)) {
10614            try {
10615                observer.onPackageDeleted(packageName,
10616                        PackageManager.DELETE_FAILED_USER_RESTRICTED, null);
10617            } catch (RemoteException re) {
10618            }
10619            return;
10620        }
10621
10622        boolean uninstallBlocked = false;
10623        if ((flags & PackageManager.DELETE_ALL_USERS) != 0) {
10624            int[] users = sUserManager.getUserIds();
10625            for (int i = 0; i < users.length; ++i) {
10626                if (getBlockUninstallForUser(packageName, users[i])) {
10627                    uninstallBlocked = true;
10628                    break;
10629                }
10630            }
10631        } else {
10632            uninstallBlocked = getBlockUninstallForUser(packageName, userId);
10633        }
10634        if (uninstallBlocked) {
10635            try {
10636                observer.onPackageDeleted(packageName, PackageManager.DELETE_FAILED_OWNER_BLOCKED,
10637                        null);
10638            } catch (RemoteException re) {
10639            }
10640            return;
10641        }
10642
10643        if (DEBUG_REMOVE) {
10644            Slog.d(TAG, "deletePackageAsUser: pkg=" + packageName + " user=" + userId);
10645        }
10646        // Queue up an async operation since the package deletion may take a little while.
10647        mHandler.post(new Runnable() {
10648            public void run() {
10649                mHandler.removeCallbacks(this);
10650                final int returnCode = deletePackageX(packageName, userId, flags);
10651                if (observer != null) {
10652                    try {
10653                        observer.onPackageDeleted(packageName, returnCode, null);
10654                    } catch (RemoteException e) {
10655                        Log.i(TAG, "Observer no longer exists.");
10656                    } //end catch
10657                } //end if
10658            } //end run
10659        });
10660    }
10661
10662    private boolean isPackageDeviceAdmin(String packageName, int userId) {
10663        IDevicePolicyManager dpm = IDevicePolicyManager.Stub.asInterface(
10664                ServiceManager.getService(Context.DEVICE_POLICY_SERVICE));
10665        try {
10666            if (dpm != null) {
10667                if (dpm.isDeviceOwner(packageName)) {
10668                    return true;
10669                }
10670                int[] users;
10671                if (userId == UserHandle.USER_ALL) {
10672                    users = sUserManager.getUserIds();
10673                } else {
10674                    users = new int[]{userId};
10675                }
10676                for (int i = 0; i < users.length; ++i) {
10677                    if (dpm.packageHasActiveAdmins(packageName, users[i])) {
10678                        return true;
10679                    }
10680                }
10681            }
10682        } catch (RemoteException e) {
10683        }
10684        return false;
10685    }
10686
10687    /**
10688     *  This method is an internal method that could be get invoked either
10689     *  to delete an installed package or to clean up a failed installation.
10690     *  After deleting an installed package, a broadcast is sent to notify any
10691     *  listeners that the package has been installed. For cleaning up a failed
10692     *  installation, the broadcast is not necessary since the package's
10693     *  installation wouldn't have sent the initial broadcast either
10694     *  The key steps in deleting a package are
10695     *  deleting the package information in internal structures like mPackages,
10696     *  deleting the packages base directories through installd
10697     *  updating mSettings to reflect current status
10698     *  persisting settings for later use
10699     *  sending a broadcast if necessary
10700     */
10701    private int deletePackageX(String packageName, int userId, int flags) {
10702        final PackageRemovedInfo info = new PackageRemovedInfo();
10703        final boolean res;
10704
10705        final UserHandle removeForUser = (flags & PackageManager.DELETE_ALL_USERS) != 0
10706                ? UserHandle.ALL : new UserHandle(userId);
10707
10708        if (isPackageDeviceAdmin(packageName, removeForUser.getIdentifier())) {
10709            Slog.w(TAG, "Not removing package " + packageName + ": has active device admin");
10710            return PackageManager.DELETE_FAILED_DEVICE_POLICY_MANAGER;
10711        }
10712
10713        boolean removedForAllUsers = false;
10714        boolean systemUpdate = false;
10715
10716        // for the uninstall-updates case and restricted profiles, remember the per-
10717        // userhandle installed state
10718        int[] allUsers;
10719        boolean[] perUserInstalled;
10720        synchronized (mPackages) {
10721            PackageSetting ps = mSettings.mPackages.get(packageName);
10722            allUsers = sUserManager.getUserIds();
10723            perUserInstalled = new boolean[allUsers.length];
10724            for (int i = 0; i < allUsers.length; i++) {
10725                perUserInstalled[i] = ps != null ? ps.getInstalled(allUsers[i]) : false;
10726            }
10727        }
10728
10729        synchronized (mInstallLock) {
10730            if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
10731            res = deletePackageLI(packageName, removeForUser,
10732                    true, allUsers, perUserInstalled,
10733                    flags | REMOVE_CHATTY, info, true);
10734            systemUpdate = info.isRemovedPackageSystemUpdate;
10735            if (res && !systemUpdate && mPackages.get(packageName) == null) {
10736                removedForAllUsers = true;
10737            }
10738            if (DEBUG_REMOVE) Slog.d(TAG, "delete res: systemUpdate=" + systemUpdate
10739                    + " removedForAllUsers=" + removedForAllUsers);
10740        }
10741
10742        if (res) {
10743            info.sendBroadcast(true, systemUpdate, removedForAllUsers);
10744
10745            // If the removed package was a system update, the old system package
10746            // was re-enabled; we need to broadcast this information
10747            if (systemUpdate) {
10748                Bundle extras = new Bundle(1);
10749                extras.putInt(Intent.EXTRA_UID, info.removedAppId >= 0
10750                        ? info.removedAppId : info.uid);
10751                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10752
10753                sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
10754                        extras, null, null, null);
10755                sendPackageBroadcast(Intent.ACTION_PACKAGE_REPLACED, packageName,
10756                        extras, null, null, null);
10757                sendPackageBroadcast(Intent.ACTION_MY_PACKAGE_REPLACED, null,
10758                        null, packageName, null, null);
10759            }
10760        }
10761        // Force a gc here.
10762        Runtime.getRuntime().gc();
10763        // Delete the resources here after sending the broadcast to let
10764        // other processes clean up before deleting resources.
10765        if (info.args != null) {
10766            synchronized (mInstallLock) {
10767                info.args.doPostDeleteLI(true);
10768            }
10769        }
10770
10771        return res ? PackageManager.DELETE_SUCCEEDED : PackageManager.DELETE_FAILED_INTERNAL_ERROR;
10772    }
10773
10774    static class PackageRemovedInfo {
10775        String removedPackage;
10776        int uid = -1;
10777        int removedAppId = -1;
10778        int[] removedUsers = null;
10779        boolean isRemovedPackageSystemUpdate = false;
10780        // Clean up resources deleted packages.
10781        InstallArgs args = null;
10782
10783        void sendBroadcast(boolean fullRemove, boolean replacing, boolean removedForAllUsers) {
10784            Bundle extras = new Bundle(1);
10785            extras.putInt(Intent.EXTRA_UID, removedAppId >= 0 ? removedAppId : uid);
10786            extras.putBoolean(Intent.EXTRA_DATA_REMOVED, fullRemove);
10787            if (replacing) {
10788                extras.putBoolean(Intent.EXTRA_REPLACING, true);
10789            }
10790            extras.putBoolean(Intent.EXTRA_REMOVED_FOR_ALL_USERS, removedForAllUsers);
10791            if (removedPackage != null) {
10792                sendPackageBroadcast(Intent.ACTION_PACKAGE_REMOVED, removedPackage,
10793                        extras, null, null, removedUsers);
10794                if (fullRemove && !replacing) {
10795                    sendPackageBroadcast(Intent.ACTION_PACKAGE_FULLY_REMOVED, removedPackage,
10796                            extras, null, null, removedUsers);
10797                }
10798            }
10799            if (removedAppId >= 0) {
10800                sendPackageBroadcast(Intent.ACTION_UID_REMOVED, null, extras, null, null,
10801                        removedUsers);
10802            }
10803        }
10804    }
10805
10806    /*
10807     * This method deletes the package from internal data structures. If the DONT_DELETE_DATA
10808     * flag is not set, the data directory is removed as well.
10809     * make sure this flag is set for partially installed apps. If not its meaningless to
10810     * delete a partially installed application.
10811     */
10812    private void removePackageDataLI(PackageSetting ps,
10813            int[] allUserHandles, boolean[] perUserInstalled,
10814            PackageRemovedInfo outInfo, int flags, boolean writeSettings) {
10815        String packageName = ps.name;
10816        if (DEBUG_REMOVE) Slog.d(TAG, "removePackageDataLI: " + ps);
10817        removePackageLI(ps, (flags&REMOVE_CHATTY) != 0);
10818        // Retrieve object to delete permissions for shared user later on
10819        final PackageSetting deletedPs;
10820        // reader
10821        synchronized (mPackages) {
10822            deletedPs = mSettings.mPackages.get(packageName);
10823            if (outInfo != null) {
10824                outInfo.removedPackage = packageName;
10825                outInfo.removedUsers = deletedPs != null
10826                        ? deletedPs.queryInstalledUsers(sUserManager.getUserIds(), true)
10827                        : null;
10828            }
10829        }
10830        if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10831            removeDataDirsLI(packageName);
10832            schedulePackageCleaning(packageName, UserHandle.USER_ALL, true);
10833        }
10834        // writer
10835        synchronized (mPackages) {
10836            if (deletedPs != null) {
10837                if ((flags&PackageManager.DELETE_KEEP_DATA) == 0) {
10838                    if (outInfo != null) {
10839                        mSettings.mKeySetManagerService.removeAppKeySetDataLPw(packageName);
10840                        outInfo.removedAppId = mSettings.removePackageLPw(packageName);
10841                    }
10842                    if (deletedPs != null) {
10843                        updatePermissionsLPw(deletedPs.name, null, 0);
10844                        if (deletedPs.sharedUser != null) {
10845                            // remove permissions associated with package
10846                            mSettings.updateSharedUserPermsLPw(deletedPs, mGlobalGids);
10847                        }
10848                    }
10849                    clearPackagePreferredActivitiesLPw(deletedPs.name, UserHandle.USER_ALL);
10850                }
10851                // make sure to preserve per-user disabled state if this removal was just
10852                // a downgrade of a system app to the factory package
10853                if (allUserHandles != null && perUserInstalled != null) {
10854                    if (DEBUG_REMOVE) {
10855                        Slog.d(TAG, "Propagating install state across downgrade");
10856                    }
10857                    for (int i = 0; i < allUserHandles.length; i++) {
10858                        if (DEBUG_REMOVE) {
10859                            Slog.d(TAG, "    user " + allUserHandles[i]
10860                                    + " => " + perUserInstalled[i]);
10861                        }
10862                        ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10863                    }
10864                }
10865            }
10866            // can downgrade to reader
10867            if (writeSettings) {
10868                // Save settings now
10869                mSettings.writeLPr();
10870            }
10871        }
10872        if (outInfo != null) {
10873            // A user ID was deleted here. Go through all users and remove it
10874            // from KeyStore.
10875            removeKeystoreDataIfNeeded(UserHandle.USER_ALL, outInfo.removedAppId);
10876        }
10877    }
10878
10879    static boolean locationIsPrivileged(File path) {
10880        try {
10881            final String privilegedAppDir = new File(Environment.getRootDirectory(), "priv-app")
10882                    .getCanonicalPath();
10883            return path.getCanonicalPath().startsWith(privilegedAppDir);
10884        } catch (IOException e) {
10885            Slog.e(TAG, "Unable to access code path " + path);
10886        }
10887        return false;
10888    }
10889
10890    /*
10891     * Tries to delete system package.
10892     */
10893    private boolean deleteSystemPackageLI(PackageSetting newPs,
10894            int[] allUserHandles, boolean[] perUserInstalled,
10895            int flags, PackageRemovedInfo outInfo, boolean writeSettings) {
10896        final boolean applyUserRestrictions
10897                = (allUserHandles != null) && (perUserInstalled != null);
10898        PackageSetting disabledPs = null;
10899        // Confirm if the system package has been updated
10900        // An updated system app can be deleted. This will also have to restore
10901        // the system pkg from system partition
10902        // reader
10903        synchronized (mPackages) {
10904            disabledPs = mSettings.getDisabledSystemPkgLPr(newPs.name);
10905        }
10906        if (DEBUG_REMOVE) Slog.d(TAG, "deleteSystemPackageLI: newPs=" + newPs
10907                + " disabledPs=" + disabledPs);
10908        if (disabledPs == null) {
10909            Slog.w(TAG, "Attempt to delete unknown system package "+ newPs.name);
10910            return false;
10911        } else if (DEBUG_REMOVE) {
10912            Slog.d(TAG, "Deleting system pkg from data partition");
10913        }
10914        if (DEBUG_REMOVE) {
10915            if (applyUserRestrictions) {
10916                Slog.d(TAG, "Remembering install states:");
10917                for (int i = 0; i < allUserHandles.length; i++) {
10918                    Slog.d(TAG, "   u=" + allUserHandles[i] + " inst=" + perUserInstalled[i]);
10919                }
10920            }
10921        }
10922        // Delete the updated package
10923        outInfo.isRemovedPackageSystemUpdate = true;
10924        if (disabledPs.versionCode < newPs.versionCode) {
10925            // Delete data for downgrades
10926            flags &= ~PackageManager.DELETE_KEEP_DATA;
10927        } else {
10928            // Preserve data by setting flag
10929            flags |= PackageManager.DELETE_KEEP_DATA;
10930        }
10931        boolean ret = deleteInstalledPackageLI(newPs, true, flags,
10932                allUserHandles, perUserInstalled, outInfo, writeSettings);
10933        if (!ret) {
10934            return false;
10935        }
10936        // writer
10937        synchronized (mPackages) {
10938            // Reinstate the old system package
10939            mSettings.enableSystemPackageLPw(newPs.name);
10940            // Remove any native libraries from the upgraded package.
10941            NativeLibraryHelper.removeNativeBinariesLI(newPs.legacyNativeLibraryPathString);
10942        }
10943        // Install the system package
10944        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
10945        int parseFlags = PackageParser.PARSE_MUST_BE_APK | PackageParser.PARSE_IS_SYSTEM;
10946        if (locationIsPrivileged(disabledPs.codePath)) {
10947            parseFlags |= PackageParser.PARSE_IS_PRIVILEGED;
10948        }
10949
10950        final PackageParser.Package newPkg;
10951        try {
10952            newPkg = scanPackageLI(disabledPs.codePath, parseFlags, SCAN_NO_PATHS, 0, null);
10953        } catch (PackageManagerException e) {
10954            Slog.w(TAG, "Failed to restore system package:" + newPs.name + ": " + e.getMessage());
10955            return false;
10956        }
10957
10958        // writer
10959        synchronized (mPackages) {
10960            PackageSetting ps = mSettings.mPackages.get(newPkg.packageName);
10961            updatePermissionsLPw(newPkg.packageName, newPkg,
10962                    UPDATE_PERMISSIONS_ALL | UPDATE_PERMISSIONS_REPLACE_PKG);
10963            if (applyUserRestrictions) {
10964                if (DEBUG_REMOVE) {
10965                    Slog.d(TAG, "Propagating install state across reinstall");
10966                }
10967                for (int i = 0; i < allUserHandles.length; i++) {
10968                    if (DEBUG_REMOVE) {
10969                        Slog.d(TAG, "    user " + allUserHandles[i]
10970                                + " => " + perUserInstalled[i]);
10971                    }
10972                    ps.setInstalled(perUserInstalled[i], allUserHandles[i]);
10973                }
10974                // Regardless of writeSettings we need to ensure that this restriction
10975                // state propagation is persisted
10976                mSettings.writeAllUsersPackageRestrictionsLPr();
10977            }
10978            // can downgrade to reader here
10979            if (writeSettings) {
10980                mSettings.writeLPr();
10981            }
10982        }
10983        return true;
10984    }
10985
10986    private boolean deleteInstalledPackageLI(PackageSetting ps,
10987            boolean deleteCodeAndResources, int flags,
10988            int[] allUserHandles, boolean[] perUserInstalled,
10989            PackageRemovedInfo outInfo, boolean writeSettings) {
10990        if (outInfo != null) {
10991            outInfo.uid = ps.appId;
10992        }
10993
10994        // Delete package data from internal structures and also remove data if flag is set
10995        removePackageDataLI(ps, allUserHandles, perUserInstalled, outInfo, flags, writeSettings);
10996
10997        // Delete application code and resources
10998        if (deleteCodeAndResources && (outInfo != null)) {
10999            outInfo.args = createInstallArgsForExisting(packageFlagsToInstallFlags(ps),
11000                    ps.codePathString, ps.resourcePathString, ps.legacyNativeLibraryPathString,
11001                    getAppDexInstructionSets(ps));
11002            if (DEBUG_SD_INSTALL) Slog.i(TAG, "args=" + outInfo.args);
11003        }
11004        return true;
11005    }
11006
11007    @Override
11008    public boolean setBlockUninstallForUser(String packageName, boolean blockUninstall,
11009            int userId) {
11010        mContext.enforceCallingOrSelfPermission(
11011                android.Manifest.permission.DELETE_PACKAGES, null);
11012        synchronized (mPackages) {
11013            PackageSetting ps = mSettings.mPackages.get(packageName);
11014            if (ps == null) {
11015                Log.i(TAG, "Package doesn't exist in set block uninstall " + packageName);
11016                return false;
11017            }
11018            if (!ps.getInstalled(userId)) {
11019                // Can't block uninstall for an app that is not installed or enabled.
11020                Log.i(TAG, "Package not installed in set block uninstall " + packageName);
11021                return false;
11022            }
11023            ps.setBlockUninstall(blockUninstall, userId);
11024            mSettings.writePackageRestrictionsLPr(userId);
11025        }
11026        return true;
11027    }
11028
11029    @Override
11030    public boolean getBlockUninstallForUser(String packageName, int userId) {
11031        synchronized (mPackages) {
11032            PackageSetting ps = mSettings.mPackages.get(packageName);
11033            if (ps == null) {
11034                Log.i(TAG, "Package doesn't exist in get block uninstall " + packageName);
11035                return false;
11036            }
11037            return ps.getBlockUninstall(userId);
11038        }
11039    }
11040
11041    /*
11042     * This method handles package deletion in general
11043     */
11044    private boolean deletePackageLI(String packageName, UserHandle user,
11045            boolean deleteCodeAndResources, int[] allUserHandles, boolean[] perUserInstalled,
11046            int flags, PackageRemovedInfo outInfo,
11047            boolean writeSettings) {
11048        if (packageName == null) {
11049            Slog.w(TAG, "Attempt to delete null packageName.");
11050            return false;
11051        }
11052        if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageLI: " + packageName + " user " + user);
11053        PackageSetting ps;
11054        boolean dataOnly = false;
11055        int removeUser = -1;
11056        int appId = -1;
11057        synchronized (mPackages) {
11058            ps = mSettings.mPackages.get(packageName);
11059            if (ps == null) {
11060                Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11061                return false;
11062            }
11063            if ((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
11064                    && user.getIdentifier() != UserHandle.USER_ALL) {
11065                // The caller is asking that the package only be deleted for a single
11066                // user.  To do this, we just mark its uninstalled state and delete
11067                // its data.  If this is a system app, we only allow this to happen if
11068                // they have set the special DELETE_SYSTEM_APP which requests different
11069                // semantics than normal for uninstalling system apps.
11070                if (DEBUG_REMOVE) Slog.d(TAG, "Only deleting for single user");
11071                ps.setUserState(user.getIdentifier(),
11072                        COMPONENT_ENABLED_STATE_DEFAULT,
11073                        false, //installed
11074                        true,  //stopped
11075                        true,  //notLaunched
11076                        false, //hidden
11077                        null, null, null,
11078                        false // blockUninstall
11079                        );
11080                if (!isSystemApp(ps)) {
11081                    if (ps.isAnyInstalled(sUserManager.getUserIds())) {
11082                        // Other user still have this package installed, so all
11083                        // we need to do is clear this user's data and save that
11084                        // it is uninstalled.
11085                        if (DEBUG_REMOVE) Slog.d(TAG, "Still installed by other users");
11086                        removeUser = user.getIdentifier();
11087                        appId = ps.appId;
11088                        mSettings.writePackageRestrictionsLPr(removeUser);
11089                    } else {
11090                        // We need to set it back to 'installed' so the uninstall
11091                        // broadcasts will be sent correctly.
11092                        if (DEBUG_REMOVE) Slog.d(TAG, "Not installed by other users, full delete");
11093                        ps.setInstalled(true, user.getIdentifier());
11094                    }
11095                } else {
11096                    // This is a system app, so we assume that the
11097                    // other users still have this package installed, so all
11098                    // we need to do is clear this user's data and save that
11099                    // it is uninstalled.
11100                    if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
11101                    removeUser = user.getIdentifier();
11102                    appId = ps.appId;
11103                    mSettings.writePackageRestrictionsLPr(removeUser);
11104                }
11105            }
11106        }
11107
11108        if (removeUser >= 0) {
11109            // From above, we determined that we are deleting this only
11110            // for a single user.  Continue the work here.
11111            if (DEBUG_REMOVE) Slog.d(TAG, "Updating install state for user: " + removeUser);
11112            if (outInfo != null) {
11113                outInfo.removedPackage = packageName;
11114                outInfo.removedAppId = appId;
11115                outInfo.removedUsers = new int[] {removeUser};
11116            }
11117            mInstaller.clearUserData(packageName, removeUser);
11118            removeKeystoreDataIfNeeded(removeUser, appId);
11119            schedulePackageCleaning(packageName, removeUser, false);
11120            return true;
11121        }
11122
11123        if (dataOnly) {
11124            // Delete application data first
11125            if (DEBUG_REMOVE) Slog.d(TAG, "Removing package data only");
11126            removePackageDataLI(ps, null, null, outInfo, flags, writeSettings);
11127            return true;
11128        }
11129
11130        boolean ret = false;
11131        if (isSystemApp(ps)) {
11132            if (DEBUG_REMOVE) Slog.d(TAG, "Removing system package:" + ps.name);
11133            // When an updated system application is deleted we delete the existing resources as well and
11134            // fall back to existing code in system partition
11135            ret = deleteSystemPackageLI(ps, allUserHandles, perUserInstalled,
11136                    flags, outInfo, writeSettings);
11137        } else {
11138            if (DEBUG_REMOVE) Slog.d(TAG, "Removing non-system package:" + ps.name);
11139            // Kill application pre-emptively especially for apps on sd.
11140            killApplication(packageName, ps.appId, "uninstall pkg");
11141            ret = deleteInstalledPackageLI(ps, deleteCodeAndResources, flags,
11142                    allUserHandles, perUserInstalled,
11143                    outInfo, writeSettings);
11144        }
11145
11146        return ret;
11147    }
11148
11149    private final class ClearStorageConnection implements ServiceConnection {
11150        IMediaContainerService mContainerService;
11151
11152        @Override
11153        public void onServiceConnected(ComponentName name, IBinder service) {
11154            synchronized (this) {
11155                mContainerService = IMediaContainerService.Stub.asInterface(service);
11156                notifyAll();
11157            }
11158        }
11159
11160        @Override
11161        public void onServiceDisconnected(ComponentName name) {
11162        }
11163    }
11164
11165    private void clearExternalStorageDataSync(String packageName, int userId, boolean allData) {
11166        final boolean mounted;
11167        if (Environment.isExternalStorageEmulated()) {
11168            mounted = true;
11169        } else {
11170            final String status = Environment.getExternalStorageState();
11171
11172            mounted = status.equals(Environment.MEDIA_MOUNTED)
11173                    || status.equals(Environment.MEDIA_MOUNTED_READ_ONLY);
11174        }
11175
11176        if (!mounted) {
11177            return;
11178        }
11179
11180        final Intent containerIntent = new Intent().setComponent(DEFAULT_CONTAINER_COMPONENT);
11181        int[] users;
11182        if (userId == UserHandle.USER_ALL) {
11183            users = sUserManager.getUserIds();
11184        } else {
11185            users = new int[] { userId };
11186        }
11187        final ClearStorageConnection conn = new ClearStorageConnection();
11188        if (mContext.bindServiceAsUser(
11189                containerIntent, conn, Context.BIND_AUTO_CREATE, UserHandle.OWNER)) {
11190            try {
11191                for (int curUser : users) {
11192                    long timeout = SystemClock.uptimeMillis() + 5000;
11193                    synchronized (conn) {
11194                        long now = SystemClock.uptimeMillis();
11195                        while (conn.mContainerService == null && now < timeout) {
11196                            try {
11197                                conn.wait(timeout - now);
11198                            } catch (InterruptedException e) {
11199                            }
11200                        }
11201                    }
11202                    if (conn.mContainerService == null) {
11203                        return;
11204                    }
11205
11206                    final UserEnvironment userEnv = new UserEnvironment(curUser);
11207                    clearDirectory(conn.mContainerService,
11208                            userEnv.buildExternalStorageAppCacheDirs(packageName));
11209                    if (allData) {
11210                        clearDirectory(conn.mContainerService,
11211                                userEnv.buildExternalStorageAppDataDirs(packageName));
11212                        clearDirectory(conn.mContainerService,
11213                                userEnv.buildExternalStorageAppMediaDirs(packageName));
11214                    }
11215                }
11216            } finally {
11217                mContext.unbindService(conn);
11218            }
11219        }
11220    }
11221
11222    @Override
11223    public void clearApplicationUserData(final String packageName,
11224            final IPackageDataObserver observer, final int userId) {
11225        mContext.enforceCallingOrSelfPermission(
11226                android.Manifest.permission.CLEAR_APP_USER_DATA, null);
11227        enforceCrossUserPermission(Binder.getCallingUid(), userId, true, false, "clear application data");
11228        // Queue up an async operation since the package deletion may take a little while.
11229        mHandler.post(new Runnable() {
11230            public void run() {
11231                mHandler.removeCallbacks(this);
11232                final boolean succeeded;
11233                synchronized (mInstallLock) {
11234                    succeeded = clearApplicationUserDataLI(packageName, userId);
11235                }
11236                clearExternalStorageDataSync(packageName, userId, true);
11237                if (succeeded) {
11238                    // invoke DeviceStorageMonitor's update method to clear any notifications
11239                    DeviceStorageMonitorInternal
11240                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
11241                    if (dsm != null) {
11242                        dsm.checkMemory();
11243                    }
11244                }
11245                if(observer != null) {
11246                    try {
11247                        observer.onRemoveCompleted(packageName, succeeded);
11248                    } catch (RemoteException e) {
11249                        Log.i(TAG, "Observer no longer exists.");
11250                    }
11251                } //end if observer
11252            } //end run
11253        });
11254    }
11255
11256    private boolean clearApplicationUserDataLI(String packageName, int userId) {
11257        if (packageName == null) {
11258            Slog.w(TAG, "Attempt to delete null packageName.");
11259            return false;
11260        }
11261
11262        // Try finding details about the requested package
11263        PackageParser.Package pkg;
11264        synchronized (mPackages) {
11265            pkg = mPackages.get(packageName);
11266            if (pkg == null) {
11267                final PackageSetting ps = mSettings.mPackages.get(packageName);
11268                if (ps != null) {
11269                    pkg = ps.pkg;
11270                }
11271            }
11272        }
11273
11274        if (pkg == null) {
11275            Slog.w(TAG, "Package named '" + packageName + "' doesn't exist.");
11276        }
11277
11278        // Always delete data directories for package, even if we found no other
11279        // record of app. This helps users recover from UID mismatches without
11280        // resorting to a full data wipe.
11281        int retCode = mInstaller.clearUserData(packageName, userId);
11282        if (retCode < 0) {
11283            Slog.w(TAG, "Couldn't remove cache files for package: " + packageName);
11284            return false;
11285        }
11286
11287        if (pkg == null) {
11288            return false;
11289        }
11290
11291        if (pkg != null && pkg.applicationInfo != null) {
11292            final int appId = pkg.applicationInfo.uid;
11293            removeKeystoreDataIfNeeded(userId, appId);
11294        }
11295
11296        // Create a native library symlink only if we have native libraries
11297        // and if the native libraries are 32 bit libraries. We do not provide
11298        // this symlink for 64 bit libraries.
11299        if (pkg != null && pkg.applicationInfo.primaryCpuAbi != null &&
11300                !VMRuntime.is64BitAbi(pkg.applicationInfo.primaryCpuAbi)) {
11301            final String nativeLibPath = pkg.applicationInfo.nativeLibraryDir;
11302            if (mInstaller.linkNativeLibraryDirectory(pkg.packageName, nativeLibPath, userId) < 0) {
11303                Slog.w(TAG, "Failed linking native library dir");
11304                return false;
11305            }
11306        }
11307
11308        return true;
11309    }
11310
11311    /**
11312     * Remove entries from the keystore daemon. Will only remove it if the
11313     * {@code appId} is valid.
11314     */
11315    private static void removeKeystoreDataIfNeeded(int userId, int appId) {
11316        if (appId < 0) {
11317            return;
11318        }
11319
11320        final KeyStore keyStore = KeyStore.getInstance();
11321        if (keyStore != null) {
11322            if (userId == UserHandle.USER_ALL) {
11323                for (final int individual : sUserManager.getUserIds()) {
11324                    keyStore.clearUid(UserHandle.getUid(individual, appId));
11325                }
11326            } else {
11327                keyStore.clearUid(UserHandle.getUid(userId, appId));
11328            }
11329        } else {
11330            Slog.w(TAG, "Could not contact keystore to clear entries for app id " + appId);
11331        }
11332    }
11333
11334    @Override
11335    public void deleteApplicationCacheFiles(final String packageName,
11336            final IPackageDataObserver observer) {
11337        mContext.enforceCallingOrSelfPermission(
11338                android.Manifest.permission.DELETE_CACHE_FILES, null);
11339        // Queue up an async operation since the package deletion may take a little while.
11340        final int userId = UserHandle.getCallingUserId();
11341        mHandler.post(new Runnable() {
11342            public void run() {
11343                mHandler.removeCallbacks(this);
11344                final boolean succeded;
11345                synchronized (mInstallLock) {
11346                    succeded = deleteApplicationCacheFilesLI(packageName, userId);
11347                }
11348                clearExternalStorageDataSync(packageName, userId, false);
11349                if(observer != null) {
11350                    try {
11351                        observer.onRemoveCompleted(packageName, succeded);
11352                    } catch (RemoteException e) {
11353                        Log.i(TAG, "Observer no longer exists.");
11354                    }
11355                } //end if observer
11356            } //end run
11357        });
11358    }
11359
11360    private boolean deleteApplicationCacheFilesLI(String packageName, int userId) {
11361        if (packageName == null) {
11362            Slog.w(TAG, "Attempt to delete null packageName.");
11363            return false;
11364        }
11365        PackageParser.Package p;
11366        synchronized (mPackages) {
11367            p = mPackages.get(packageName);
11368        }
11369        if (p == null) {
11370            Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11371            return false;
11372        }
11373        final ApplicationInfo applicationInfo = p.applicationInfo;
11374        if (applicationInfo == null) {
11375            Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11376            return false;
11377        }
11378        int retCode = mInstaller.deleteCacheFiles(packageName, userId);
11379        if (retCode < 0) {
11380            Slog.w(TAG, "Couldn't remove cache files for package: "
11381                       + packageName + " u" + userId);
11382            return false;
11383        }
11384        return true;
11385    }
11386
11387    @Override
11388    public void getPackageSizeInfo(final String packageName, int userHandle,
11389            final IPackageStatsObserver observer) {
11390        mContext.enforceCallingOrSelfPermission(
11391                android.Manifest.permission.GET_PACKAGE_SIZE, null);
11392        if (packageName == null) {
11393            throw new IllegalArgumentException("Attempt to get size of null packageName");
11394        }
11395
11396        PackageStats stats = new PackageStats(packageName, userHandle);
11397
11398        /*
11399         * Queue up an async operation since the package measurement may take a
11400         * little while.
11401         */
11402        Message msg = mHandler.obtainMessage(INIT_COPY);
11403        msg.obj = new MeasureParams(stats, observer);
11404        mHandler.sendMessage(msg);
11405    }
11406
11407    private boolean getPackageSizeInfoLI(String packageName, int userHandle,
11408            PackageStats pStats) {
11409        if (packageName == null) {
11410            Slog.w(TAG, "Attempt to get size of null packageName.");
11411            return false;
11412        }
11413        PackageParser.Package p;
11414        boolean dataOnly = false;
11415        String libDirRoot = null;
11416        String asecPath = null;
11417        PackageSetting ps = null;
11418        synchronized (mPackages) {
11419            p = mPackages.get(packageName);
11420            ps = mSettings.mPackages.get(packageName);
11421            if(p == null) {
11422                dataOnly = true;
11423                if((ps == null) || (ps.pkg == null)) {
11424                    Slog.w(TAG, "Package named '" + packageName +"' doesn't exist.");
11425                    return false;
11426                }
11427                p = ps.pkg;
11428            }
11429            if (ps != null) {
11430                libDirRoot = ps.legacyNativeLibraryPathString;
11431            }
11432            if (p != null && (isExternal(p) || isForwardLocked(p))) {
11433                String secureContainerId = cidFromCodePath(p.applicationInfo.getBaseCodePath());
11434                if (secureContainerId != null) {
11435                    asecPath = PackageHelper.getSdFilesystem(secureContainerId);
11436                }
11437            }
11438        }
11439        String publicSrcDir = null;
11440        if(!dataOnly) {
11441            final ApplicationInfo applicationInfo = p.applicationInfo;
11442            if (applicationInfo == null) {
11443                Slog.w(TAG, "Package " + packageName + " has no applicationInfo.");
11444                return false;
11445            }
11446            if (isForwardLocked(p)) {
11447                publicSrcDir = applicationInfo.getBaseResourcePath();
11448            }
11449        }
11450        // TODO: extend to measure size of split APKs
11451        // TODO(multiArch): Extend getSizeInfo to look at the full subdirectory tree,
11452        // not just the first level.
11453        // TODO(multiArch): Extend getSizeInfo to look at *all* instruction sets, not
11454        // just the primary.
11455        String[] dexCodeInstructionSets = getDexCodeInstructionSets(getAppDexInstructionSets(ps));
11456        int res = mInstaller.getSizeInfo(packageName, userHandle, p.baseCodePath, libDirRoot,
11457                publicSrcDir, asecPath, dexCodeInstructionSets, pStats);
11458        if (res < 0) {
11459            return false;
11460        }
11461
11462        // Fix-up for forward-locked applications in ASEC containers.
11463        if (!isExternal(p)) {
11464            pStats.codeSize += pStats.externalCodeSize;
11465            pStats.externalCodeSize = 0L;
11466        }
11467
11468        return true;
11469    }
11470
11471
11472    @Override
11473    public void addPackageToPreferred(String packageName) {
11474        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
11475    }
11476
11477    @Override
11478    public void removePackageFromPreferred(String packageName) {
11479        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
11480    }
11481
11482    @Override
11483    public List<PackageInfo> getPreferredPackages(int flags) {
11484        return new ArrayList<PackageInfo>();
11485    }
11486
11487    private int getUidTargetSdkVersionLockedLPr(int uid) {
11488        Object obj = mSettings.getUserIdLPr(uid);
11489        if (obj instanceof SharedUserSetting) {
11490            final SharedUserSetting sus = (SharedUserSetting) obj;
11491            int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
11492            final Iterator<PackageSetting> it = sus.packages.iterator();
11493            while (it.hasNext()) {
11494                final PackageSetting ps = it.next();
11495                if (ps.pkg != null) {
11496                    int v = ps.pkg.applicationInfo.targetSdkVersion;
11497                    if (v < vers) vers = v;
11498                }
11499            }
11500            return vers;
11501        } else if (obj instanceof PackageSetting) {
11502            final PackageSetting ps = (PackageSetting) obj;
11503            if (ps.pkg != null) {
11504                return ps.pkg.applicationInfo.targetSdkVersion;
11505            }
11506        }
11507        return Build.VERSION_CODES.CUR_DEVELOPMENT;
11508    }
11509
11510    @Override
11511    public void addPreferredActivity(IntentFilter filter, int match,
11512            ComponentName[] set, ComponentName activity, int userId) {
11513        addPreferredActivityInternal(filter, match, set, activity, true, userId,
11514                "Adding preferred");
11515    }
11516
11517    private void addPreferredActivityInternal(IntentFilter filter, int match,
11518            ComponentName[] set, ComponentName activity, boolean always, int userId,
11519            String opname) {
11520        // writer
11521        int callingUid = Binder.getCallingUid();
11522        enforceCrossUserPermission(callingUid, userId, true, false, "add preferred activity");
11523        if (filter.countActions() == 0) {
11524            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11525            return;
11526        }
11527        synchronized (mPackages) {
11528            if (mContext.checkCallingOrSelfPermission(
11529                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11530                    != PackageManager.PERMISSION_GRANTED) {
11531                if (getUidTargetSdkVersionLockedLPr(callingUid)
11532                        < Build.VERSION_CODES.FROYO) {
11533                    Slog.w(TAG, "Ignoring addPreferredActivity() from uid "
11534                            + callingUid);
11535                    return;
11536                }
11537                mContext.enforceCallingOrSelfPermission(
11538                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11539            }
11540
11541            PreferredIntentResolver pir = mSettings.editPreferredActivitiesLPw(userId);
11542            Slog.i(TAG, opname + " activity " + activity.flattenToShortString() + " for user "
11543                    + userId + ":");
11544            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11545            pir.addFilter(new PreferredActivity(filter, match, set, activity, always));
11546            mSettings.writePackageRestrictionsLPr(userId);
11547        }
11548    }
11549
11550    @Override
11551    public void replacePreferredActivity(IntentFilter filter, int match,
11552            ComponentName[] set, ComponentName activity, int userId) {
11553        if (filter.countActions() != 1) {
11554            throw new IllegalArgumentException(
11555                    "replacePreferredActivity expects filter to have only 1 action.");
11556        }
11557        if (filter.countDataAuthorities() != 0
11558                || filter.countDataPaths() != 0
11559                || filter.countDataSchemes() > 1
11560                || filter.countDataTypes() != 0) {
11561            throw new IllegalArgumentException(
11562                    "replacePreferredActivity expects filter to have no data authorities, " +
11563                    "paths, or types; and at most one scheme.");
11564        }
11565
11566        final int callingUid = Binder.getCallingUid();
11567        enforceCrossUserPermission(callingUid, userId, true, false, "replace preferred activity");
11568        synchronized (mPackages) {
11569            if (mContext.checkCallingOrSelfPermission(
11570                    android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11571                    != PackageManager.PERMISSION_GRANTED) {
11572                if (getUidTargetSdkVersionLockedLPr(callingUid)
11573                        < Build.VERSION_CODES.FROYO) {
11574                    Slog.w(TAG, "Ignoring replacePreferredActivity() from uid "
11575                            + Binder.getCallingUid());
11576                    return;
11577                }
11578                mContext.enforceCallingOrSelfPermission(
11579                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11580            }
11581
11582            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11583            if (pir != null) {
11584                // Get all of the existing entries that exactly match this filter.
11585                ArrayList<PreferredActivity> existing = pir.findFilters(filter);
11586                if (existing != null && existing.size() == 1) {
11587                    PreferredActivity cur = existing.get(0);
11588                    if (DEBUG_PREFERRED) {
11589                        Slog.i(TAG, "Checking replace of preferred:");
11590                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11591                        if (!cur.mPref.mAlways) {
11592                            Slog.i(TAG, "  -- CUR; not mAlways!");
11593                        } else {
11594                            Slog.i(TAG, "  -- CUR: mMatch=" + cur.mPref.mMatch);
11595                            Slog.i(TAG, "  -- CUR: mSet="
11596                                    + Arrays.toString(cur.mPref.mSetComponents));
11597                            Slog.i(TAG, "  -- CUR: mComponent=" + cur.mPref.mShortComponent);
11598                            Slog.i(TAG, "  -- NEW: mMatch="
11599                                    + (match&IntentFilter.MATCH_CATEGORY_MASK));
11600                            Slog.i(TAG, "  -- CUR: mSet=" + Arrays.toString(set));
11601                            Slog.i(TAG, "  -- CUR: mComponent=" + activity.flattenToShortString());
11602                        }
11603                    }
11604                    if (cur.mPref.mAlways && cur.mPref.mComponent.equals(activity)
11605                            && cur.mPref.mMatch == (match&IntentFilter.MATCH_CATEGORY_MASK)
11606                            && cur.mPref.sameSet(set)) {
11607                        // Setting the preferred activity to what it happens to be already
11608                        if (DEBUG_PREFERRED) {
11609                            Slog.i(TAG, "Replacing with same preferred activity "
11610                                    + cur.mPref.mShortComponent + " for user "
11611                                    + userId + ":");
11612                            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11613                        }
11614                        return;
11615                    }
11616                }
11617
11618                if (existing != null) {
11619                    if (DEBUG_PREFERRED) {
11620                        Slog.i(TAG, existing.size() + " existing preferred matches for:");
11621                        filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11622                    }
11623                    for (int i = 0; i < existing.size(); i++) {
11624                        PreferredActivity pa = existing.get(i);
11625                        if (DEBUG_PREFERRED) {
11626                            Slog.i(TAG, "Removing existing preferred activity "
11627                                    + pa.mPref.mComponent + ":");
11628                            pa.dump(new LogPrinter(Log.INFO, TAG), "  ");
11629                        }
11630                        pir.removeFilter(pa);
11631                    }
11632                }
11633            }
11634            addPreferredActivityInternal(filter, match, set, activity, true, userId,
11635                    "Replacing preferred");
11636        }
11637    }
11638
11639    @Override
11640    public void clearPackagePreferredActivities(String packageName) {
11641        final int uid = Binder.getCallingUid();
11642        // writer
11643        synchronized (mPackages) {
11644            PackageParser.Package pkg = mPackages.get(packageName);
11645            if (pkg == null || pkg.applicationInfo.uid != uid) {
11646                if (mContext.checkCallingOrSelfPermission(
11647                        android.Manifest.permission.SET_PREFERRED_APPLICATIONS)
11648                        != PackageManager.PERMISSION_GRANTED) {
11649                    if (getUidTargetSdkVersionLockedLPr(Binder.getCallingUid())
11650                            < Build.VERSION_CODES.FROYO) {
11651                        Slog.w(TAG, "Ignoring clearPackagePreferredActivities() from uid "
11652                                + Binder.getCallingUid());
11653                        return;
11654                    }
11655                    mContext.enforceCallingOrSelfPermission(
11656                            android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11657                }
11658            }
11659
11660            int user = UserHandle.getCallingUserId();
11661            if (clearPackagePreferredActivitiesLPw(packageName, user)) {
11662                mSettings.writePackageRestrictionsLPr(user);
11663                scheduleWriteSettingsLocked();
11664            }
11665        }
11666    }
11667
11668    /** This method takes a specific user id as well as UserHandle.USER_ALL. */
11669    boolean clearPackagePreferredActivitiesLPw(String packageName, int userId) {
11670        ArrayList<PreferredActivity> removed = null;
11671        boolean changed = false;
11672        for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
11673            final int thisUserId = mSettings.mPreferredActivities.keyAt(i);
11674            PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
11675            if (userId != UserHandle.USER_ALL && userId != thisUserId) {
11676                continue;
11677            }
11678            Iterator<PreferredActivity> it = pir.filterIterator();
11679            while (it.hasNext()) {
11680                PreferredActivity pa = it.next();
11681                // Mark entry for removal only if it matches the package name
11682                // and the entry is of type "always".
11683                if (packageName == null ||
11684                        (pa.mPref.mComponent.getPackageName().equals(packageName)
11685                                && pa.mPref.mAlways)) {
11686                    if (removed == null) {
11687                        removed = new ArrayList<PreferredActivity>();
11688                    }
11689                    removed.add(pa);
11690                }
11691            }
11692            if (removed != null) {
11693                for (int j=0; j<removed.size(); j++) {
11694                    PreferredActivity pa = removed.get(j);
11695                    pir.removeFilter(pa);
11696                }
11697                changed = true;
11698            }
11699        }
11700        return changed;
11701    }
11702
11703    @Override
11704    public void resetPreferredActivities(int userId) {
11705        /* TODO: Actually use userId. Why is it being passed in? */
11706        mContext.enforceCallingOrSelfPermission(
11707                android.Manifest.permission.SET_PREFERRED_APPLICATIONS, null);
11708        // writer
11709        synchronized (mPackages) {
11710            int user = UserHandle.getCallingUserId();
11711            clearPackagePreferredActivitiesLPw(null, user);
11712            mSettings.readDefaultPreferredAppsLPw(this, user);
11713            mSettings.writePackageRestrictionsLPr(user);
11714            scheduleWriteSettingsLocked();
11715        }
11716    }
11717
11718    @Override
11719    public int getPreferredActivities(List<IntentFilter> outFilters,
11720            List<ComponentName> outActivities, String packageName) {
11721
11722        int num = 0;
11723        final int userId = UserHandle.getCallingUserId();
11724        // reader
11725        synchronized (mPackages) {
11726            PreferredIntentResolver pir = mSettings.mPreferredActivities.get(userId);
11727            if (pir != null) {
11728                final Iterator<PreferredActivity> it = pir.filterIterator();
11729                while (it.hasNext()) {
11730                    final PreferredActivity pa = it.next();
11731                    if (packageName == null
11732                            || (pa.mPref.mComponent.getPackageName().equals(packageName)
11733                                    && pa.mPref.mAlways)) {
11734                        if (outFilters != null) {
11735                            outFilters.add(new IntentFilter(pa));
11736                        }
11737                        if (outActivities != null) {
11738                            outActivities.add(pa.mPref.mComponent);
11739                        }
11740                    }
11741                }
11742            }
11743        }
11744
11745        return num;
11746    }
11747
11748    @Override
11749    public void addPersistentPreferredActivity(IntentFilter filter, ComponentName activity,
11750            int userId) {
11751        int callingUid = Binder.getCallingUid();
11752        if (callingUid != Process.SYSTEM_UID) {
11753            throw new SecurityException(
11754                    "addPersistentPreferredActivity can only be run by the system");
11755        }
11756        if (filter.countActions() == 0) {
11757            Slog.w(TAG, "Cannot set a preferred activity with no filter actions");
11758            return;
11759        }
11760        synchronized (mPackages) {
11761            Slog.i(TAG, "Adding persistent preferred activity " + activity + " for user " + userId +
11762                    " :");
11763            filter.dump(new LogPrinter(Log.INFO, TAG), "  ");
11764            mSettings.editPersistentPreferredActivitiesLPw(userId).addFilter(
11765                    new PersistentPreferredActivity(filter, activity));
11766            mSettings.writePackageRestrictionsLPr(userId);
11767        }
11768    }
11769
11770    @Override
11771    public void clearPackagePersistentPreferredActivities(String packageName, int userId) {
11772        int callingUid = Binder.getCallingUid();
11773        if (callingUid != Process.SYSTEM_UID) {
11774            throw new SecurityException(
11775                    "clearPackagePersistentPreferredActivities can only be run by the system");
11776        }
11777        ArrayList<PersistentPreferredActivity> removed = null;
11778        boolean changed = false;
11779        synchronized (mPackages) {
11780            for (int i=0; i<mSettings.mPersistentPreferredActivities.size(); i++) {
11781                final int thisUserId = mSettings.mPersistentPreferredActivities.keyAt(i);
11782                PersistentPreferredIntentResolver ppir = mSettings.mPersistentPreferredActivities
11783                        .valueAt(i);
11784                if (userId != thisUserId) {
11785                    continue;
11786                }
11787                Iterator<PersistentPreferredActivity> it = ppir.filterIterator();
11788                while (it.hasNext()) {
11789                    PersistentPreferredActivity ppa = it.next();
11790                    // Mark entry for removal only if it matches the package name.
11791                    if (ppa.mComponent.getPackageName().equals(packageName)) {
11792                        if (removed == null) {
11793                            removed = new ArrayList<PersistentPreferredActivity>();
11794                        }
11795                        removed.add(ppa);
11796                    }
11797                }
11798                if (removed != null) {
11799                    for (int j=0; j<removed.size(); j++) {
11800                        PersistentPreferredActivity ppa = removed.get(j);
11801                        ppir.removeFilter(ppa);
11802                    }
11803                    changed = true;
11804                }
11805            }
11806
11807            if (changed) {
11808                mSettings.writePackageRestrictionsLPr(userId);
11809            }
11810        }
11811    }
11812
11813    @Override
11814    public void addCrossProfileIntentFilter(IntentFilter intentFilter, String ownerPackage,
11815            int ownerUserId, int sourceUserId, int targetUserId, int flags) {
11816        mContext.enforceCallingOrSelfPermission(
11817                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11818        int callingUid = Binder.getCallingUid();
11819        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11820        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11821        if (intentFilter.countActions() == 0) {
11822            Slog.w(TAG, "Cannot set a crossProfile intent filter with no filter actions");
11823            return;
11824        }
11825        synchronized (mPackages) {
11826            CrossProfileIntentFilter filter = new CrossProfileIntentFilter(intentFilter,
11827                    ownerPackage, UserHandle.getUserId(callingUid), targetUserId, flags);
11828            mSettings.editCrossProfileIntentResolverLPw(sourceUserId).addFilter(filter);
11829            mSettings.writePackageRestrictionsLPr(sourceUserId);
11830        }
11831    }
11832
11833    @Override
11834    public void clearCrossProfileIntentFilters(int sourceUserId, String ownerPackage,
11835            int ownerUserId) {
11836        mContext.enforceCallingOrSelfPermission(
11837                        android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, null);
11838        int callingUid = Binder.getCallingUid();
11839        enforceOwnerRights(ownerPackage, ownerUserId, callingUid);
11840        enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, callingUid, sourceUserId);
11841        int callingUserId = UserHandle.getUserId(callingUid);
11842        synchronized (mPackages) {
11843            CrossProfileIntentResolver resolver =
11844                    mSettings.editCrossProfileIntentResolverLPw(sourceUserId);
11845            HashSet<CrossProfileIntentFilter> set =
11846                    new HashSet<CrossProfileIntentFilter>(resolver.filterSet());
11847            for (CrossProfileIntentFilter filter : set) {
11848                if (filter.getOwnerPackage().equals(ownerPackage)
11849                        && filter.getOwnerUserId() == callingUserId) {
11850                    resolver.removeFilter(filter);
11851                }
11852            }
11853            mSettings.writePackageRestrictionsLPr(sourceUserId);
11854        }
11855    }
11856
11857    // Enforcing that callingUid is owning pkg on userId
11858    private void enforceOwnerRights(String pkg, int userId, int callingUid) {
11859        // The system owns everything.
11860        if (UserHandle.getAppId(callingUid) == Process.SYSTEM_UID) {
11861            return;
11862        }
11863        int callingUserId = UserHandle.getUserId(callingUid);
11864        if (callingUserId != userId) {
11865            throw new SecurityException("calling uid " + callingUid
11866                    + " pretends to own " + pkg + " on user " + userId + " but belongs to user "
11867                    + callingUserId);
11868        }
11869        PackageInfo pi = getPackageInfo(pkg, 0, callingUserId);
11870        if (pi == null) {
11871            throw new IllegalArgumentException("Unknown package " + pkg + " on user "
11872                    + callingUserId);
11873        }
11874        if (!UserHandle.isSameApp(pi.applicationInfo.uid, callingUid)) {
11875            throw new SecurityException("Calling uid " + callingUid
11876                    + " does not own package " + pkg);
11877        }
11878    }
11879
11880    @Override
11881    public ComponentName getHomeActivities(List<ResolveInfo> allHomeCandidates) {
11882        Intent intent = new Intent(Intent.ACTION_MAIN);
11883        intent.addCategory(Intent.CATEGORY_HOME);
11884
11885        final int callingUserId = UserHandle.getCallingUserId();
11886        List<ResolveInfo> list = queryIntentActivities(intent, null,
11887                PackageManager.GET_META_DATA, callingUserId);
11888        ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
11889                true, false, false, callingUserId);
11890
11891        allHomeCandidates.clear();
11892        if (list != null) {
11893            for (ResolveInfo ri : list) {
11894                allHomeCandidates.add(ri);
11895            }
11896        }
11897        return (preferred == null || preferred.activityInfo == null)
11898                ? null
11899                : new ComponentName(preferred.activityInfo.packageName,
11900                        preferred.activityInfo.name);
11901    }
11902
11903    @Override
11904    public void setApplicationEnabledSetting(String appPackageName,
11905            int newState, int flags, int userId, String callingPackage) {
11906        if (!sUserManager.exists(userId)) return;
11907        if (callingPackage == null) {
11908            callingPackage = Integer.toString(Binder.getCallingUid());
11909        }
11910        setEnabledSetting(appPackageName, null, newState, flags, userId, callingPackage);
11911    }
11912
11913    @Override
11914    public void setComponentEnabledSetting(ComponentName componentName,
11915            int newState, int flags, int userId) {
11916        if (!sUserManager.exists(userId)) return;
11917        setEnabledSetting(componentName.getPackageName(),
11918                componentName.getClassName(), newState, flags, userId, null);
11919    }
11920
11921    private void setEnabledSetting(final String packageName, String className, int newState,
11922            final int flags, int userId, String callingPackage) {
11923        if (!(newState == COMPONENT_ENABLED_STATE_DEFAULT
11924              || newState == COMPONENT_ENABLED_STATE_ENABLED
11925              || newState == COMPONENT_ENABLED_STATE_DISABLED
11926              || newState == COMPONENT_ENABLED_STATE_DISABLED_USER
11927              || newState == COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED)) {
11928            throw new IllegalArgumentException("Invalid new component state: "
11929                    + newState);
11930        }
11931        PackageSetting pkgSetting;
11932        final int uid = Binder.getCallingUid();
11933        final int permission = mContext.checkCallingOrSelfPermission(
11934                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
11935        enforceCrossUserPermission(uid, userId, false, true, "set enabled");
11936        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
11937        boolean sendNow = false;
11938        boolean isApp = (className == null);
11939        String componentName = isApp ? packageName : className;
11940        int packageUid = -1;
11941        ArrayList<String> components;
11942
11943        // writer
11944        synchronized (mPackages) {
11945            pkgSetting = mSettings.mPackages.get(packageName);
11946            if (pkgSetting == null) {
11947                if (className == null) {
11948                    throw new IllegalArgumentException(
11949                            "Unknown package: " + packageName);
11950                }
11951                throw new IllegalArgumentException(
11952                        "Unknown component: " + packageName
11953                        + "/" + className);
11954            }
11955            // Allow root and verify that userId is not being specified by a different user
11956            if (!allowedByPermission && !UserHandle.isSameApp(uid, pkgSetting.appId)) {
11957                throw new SecurityException(
11958                        "Permission Denial: attempt to change component state from pid="
11959                        + Binder.getCallingPid()
11960                        + ", uid=" + uid + ", package uid=" + pkgSetting.appId);
11961            }
11962            if (className == null) {
11963                // We're dealing with an application/package level state change
11964                if (pkgSetting.getEnabled(userId) == newState) {
11965                    // Nothing to do
11966                    return;
11967                }
11968                if (newState == PackageManager.COMPONENT_ENABLED_STATE_DEFAULT
11969                    || newState == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) {
11970                    // Don't care about who enables an app.
11971                    callingPackage = null;
11972                }
11973                pkgSetting.setEnabled(newState, userId, callingPackage);
11974                // pkgSetting.pkg.mSetEnabled = newState;
11975            } else {
11976                // We're dealing with a component level state change
11977                // First, verify that this is a valid class name.
11978                PackageParser.Package pkg = pkgSetting.pkg;
11979                if (pkg == null || !pkg.hasComponentClassName(className)) {
11980                    if (pkg.applicationInfo.targetSdkVersion >= Build.VERSION_CODES.JELLY_BEAN) {
11981                        throw new IllegalArgumentException("Component class " + className
11982                                + " does not exist in " + packageName);
11983                    } else {
11984                        Slog.w(TAG, "Failed setComponentEnabledSetting: component class "
11985                                + className + " does not exist in " + packageName);
11986                    }
11987                }
11988                switch (newState) {
11989                case COMPONENT_ENABLED_STATE_ENABLED:
11990                    if (!pkgSetting.enableComponentLPw(className, userId)) {
11991                        return;
11992                    }
11993                    break;
11994                case COMPONENT_ENABLED_STATE_DISABLED:
11995                    if (!pkgSetting.disableComponentLPw(className, userId)) {
11996                        return;
11997                    }
11998                    break;
11999                case COMPONENT_ENABLED_STATE_DEFAULT:
12000                    if (!pkgSetting.restoreComponentLPw(className, userId)) {
12001                        return;
12002                    }
12003                    break;
12004                default:
12005                    Slog.e(TAG, "Invalid new component state: " + newState);
12006                    return;
12007                }
12008            }
12009            mSettings.writePackageRestrictionsLPr(userId);
12010            components = mPendingBroadcasts.get(userId, packageName);
12011            final boolean newPackage = components == null;
12012            if (newPackage) {
12013                components = new ArrayList<String>();
12014            }
12015            if (!components.contains(componentName)) {
12016                components.add(componentName);
12017            }
12018            if ((flags&PackageManager.DONT_KILL_APP) == 0) {
12019                sendNow = true;
12020                // Purge entry from pending broadcast list if another one exists already
12021                // since we are sending one right away.
12022                mPendingBroadcasts.remove(userId, packageName);
12023            } else {
12024                if (newPackage) {
12025                    mPendingBroadcasts.put(userId, packageName, components);
12026                }
12027                if (!mHandler.hasMessages(SEND_PENDING_BROADCAST)) {
12028                    // Schedule a message
12029                    mHandler.sendEmptyMessageDelayed(SEND_PENDING_BROADCAST, BROADCAST_DELAY);
12030                }
12031            }
12032        }
12033
12034        long callingId = Binder.clearCallingIdentity();
12035        try {
12036            if (sendNow) {
12037                packageUid = UserHandle.getUid(userId, pkgSetting.appId);
12038                sendPackageChangedBroadcast(packageName,
12039                        (flags&PackageManager.DONT_KILL_APP) != 0, components, packageUid);
12040            }
12041        } finally {
12042            Binder.restoreCallingIdentity(callingId);
12043        }
12044    }
12045
12046    private void sendPackageChangedBroadcast(String packageName,
12047            boolean killFlag, ArrayList<String> componentNames, int packageUid) {
12048        if (DEBUG_INSTALL)
12049            Log.v(TAG, "Sending package changed: package=" + packageName + " components="
12050                    + componentNames);
12051        Bundle extras = new Bundle(4);
12052        extras.putString(Intent.EXTRA_CHANGED_COMPONENT_NAME, componentNames.get(0));
12053        String nameList[] = new String[componentNames.size()];
12054        componentNames.toArray(nameList);
12055        extras.putStringArray(Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST, nameList);
12056        extras.putBoolean(Intent.EXTRA_DONT_KILL_APP, killFlag);
12057        extras.putInt(Intent.EXTRA_UID, packageUid);
12058        sendPackageBroadcast(Intent.ACTION_PACKAGE_CHANGED,  packageName, extras, null, null,
12059                new int[] {UserHandle.getUserId(packageUid)});
12060    }
12061
12062    @Override
12063    public void setPackageStoppedState(String packageName, boolean stopped, int userId) {
12064        if (!sUserManager.exists(userId)) return;
12065        final int uid = Binder.getCallingUid();
12066        final int permission = mContext.checkCallingOrSelfPermission(
12067                android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE);
12068        final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
12069        enforceCrossUserPermission(uid, userId, true, true, "stop package");
12070        // writer
12071        synchronized (mPackages) {
12072            if (mSettings.setPackageStoppedStateLPw(packageName, stopped, allowedByPermission,
12073                    uid, userId)) {
12074                scheduleWritePackageRestrictionsLocked(userId);
12075            }
12076        }
12077    }
12078
12079    @Override
12080    public String getInstallerPackageName(String packageName) {
12081        // reader
12082        synchronized (mPackages) {
12083            return mSettings.getInstallerPackageNameLPr(packageName);
12084        }
12085    }
12086
12087    @Override
12088    public int getApplicationEnabledSetting(String packageName, int userId) {
12089        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12090        int uid = Binder.getCallingUid();
12091        enforceCrossUserPermission(uid, userId, false, false, "get enabled");
12092        // reader
12093        synchronized (mPackages) {
12094            return mSettings.getApplicationEnabledSettingLPr(packageName, userId);
12095        }
12096    }
12097
12098    @Override
12099    public int getComponentEnabledSetting(ComponentName componentName, int userId) {
12100        if (!sUserManager.exists(userId)) return COMPONENT_ENABLED_STATE_DISABLED;
12101        int uid = Binder.getCallingUid();
12102        enforceCrossUserPermission(uid, userId, false, false, "get component enabled");
12103        // reader
12104        synchronized (mPackages) {
12105            return mSettings.getComponentEnabledSettingLPr(componentName, userId);
12106        }
12107    }
12108
12109    @Override
12110    public void enterSafeMode() {
12111        enforceSystemOrRoot("Only the system can request entering safe mode");
12112
12113        if (!mSystemReady) {
12114            mSafeMode = true;
12115        }
12116    }
12117
12118    @Override
12119    public void systemReady() {
12120        mSystemReady = true;
12121
12122        // Read the compatibilty setting when the system is ready.
12123        boolean compatibilityModeEnabled = android.provider.Settings.Global.getInt(
12124                mContext.getContentResolver(),
12125                android.provider.Settings.Global.COMPATIBILITY_MODE, 1) == 1;
12126        PackageParser.setCompatibilityModeEnabled(compatibilityModeEnabled);
12127        if (DEBUG_SETTINGS) {
12128            Log.d(TAG, "compatibility mode:" + compatibilityModeEnabled);
12129        }
12130
12131        synchronized (mPackages) {
12132            // Verify that all of the preferred activity components actually
12133            // exist.  It is possible for applications to be updated and at
12134            // that point remove a previously declared activity component that
12135            // had been set as a preferred activity.  We try to clean this up
12136            // the next time we encounter that preferred activity, but it is
12137            // possible for the user flow to never be able to return to that
12138            // situation so here we do a sanity check to make sure we haven't
12139            // left any junk around.
12140            ArrayList<PreferredActivity> removed = new ArrayList<PreferredActivity>();
12141            for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12142                PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12143                removed.clear();
12144                for (PreferredActivity pa : pir.filterSet()) {
12145                    if (mActivities.mActivities.get(pa.mPref.mComponent) == null) {
12146                        removed.add(pa);
12147                    }
12148                }
12149                if (removed.size() > 0) {
12150                    for (int r=0; r<removed.size(); r++) {
12151                        PreferredActivity pa = removed.get(r);
12152                        Slog.w(TAG, "Removing dangling preferred activity: "
12153                                + pa.mPref.mComponent);
12154                        pir.removeFilter(pa);
12155                    }
12156                    mSettings.writePackageRestrictionsLPr(
12157                            mSettings.mPreferredActivities.keyAt(i));
12158                }
12159            }
12160        }
12161        sUserManager.systemReady();
12162
12163        // Kick off any messages waiting for system ready
12164        if (mPostSystemReadyMessages != null) {
12165            for (Message msg : mPostSystemReadyMessages) {
12166                msg.sendToTarget();
12167            }
12168            mPostSystemReadyMessages = null;
12169        }
12170    }
12171
12172    @Override
12173    public boolean isSafeMode() {
12174        return mSafeMode;
12175    }
12176
12177    @Override
12178    public boolean hasSystemUidErrors() {
12179        return mHasSystemUidErrors;
12180    }
12181
12182    static String arrayToString(int[] array) {
12183        StringBuffer buf = new StringBuffer(128);
12184        buf.append('[');
12185        if (array != null) {
12186            for (int i=0; i<array.length; i++) {
12187                if (i > 0) buf.append(", ");
12188                buf.append(array[i]);
12189            }
12190        }
12191        buf.append(']');
12192        return buf.toString();
12193    }
12194
12195    static class DumpState {
12196        public static final int DUMP_LIBS = 1 << 0;
12197        public static final int DUMP_FEATURES = 1 << 1;
12198        public static final int DUMP_RESOLVERS = 1 << 2;
12199        public static final int DUMP_PERMISSIONS = 1 << 3;
12200        public static final int DUMP_PACKAGES = 1 << 4;
12201        public static final int DUMP_SHARED_USERS = 1 << 5;
12202        public static final int DUMP_MESSAGES = 1 << 6;
12203        public static final int DUMP_PROVIDERS = 1 << 7;
12204        public static final int DUMP_VERIFIERS = 1 << 8;
12205        public static final int DUMP_PREFERRED = 1 << 9;
12206        public static final int DUMP_PREFERRED_XML = 1 << 10;
12207        public static final int DUMP_KEYSETS = 1 << 11;
12208        public static final int DUMP_VERSION = 1 << 12;
12209        public static final int DUMP_INSTALLS = 1 << 13;
12210
12211        public static final int OPTION_SHOW_FILTERS = 1 << 0;
12212
12213        private int mTypes;
12214
12215        private int mOptions;
12216
12217        private boolean mTitlePrinted;
12218
12219        private SharedUserSetting mSharedUser;
12220
12221        public boolean isDumping(int type) {
12222            if (mTypes == 0 && type != DUMP_PREFERRED_XML) {
12223                return true;
12224            }
12225
12226            return (mTypes & type) != 0;
12227        }
12228
12229        public void setDump(int type) {
12230            mTypes |= type;
12231        }
12232
12233        public boolean isOptionEnabled(int option) {
12234            return (mOptions & option) != 0;
12235        }
12236
12237        public void setOptionEnabled(int option) {
12238            mOptions |= option;
12239        }
12240
12241        public boolean onTitlePrinted() {
12242            final boolean printed = mTitlePrinted;
12243            mTitlePrinted = true;
12244            return printed;
12245        }
12246
12247        public boolean getTitlePrinted() {
12248            return mTitlePrinted;
12249        }
12250
12251        public void setTitlePrinted(boolean enabled) {
12252            mTitlePrinted = enabled;
12253        }
12254
12255        public SharedUserSetting getSharedUser() {
12256            return mSharedUser;
12257        }
12258
12259        public void setSharedUser(SharedUserSetting user) {
12260            mSharedUser = user;
12261        }
12262    }
12263
12264    @Override
12265    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
12266        if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
12267                != PackageManager.PERMISSION_GRANTED) {
12268            pw.println("Permission Denial: can't dump ActivityManager from from pid="
12269                    + Binder.getCallingPid()
12270                    + ", uid=" + Binder.getCallingUid()
12271                    + " without permission "
12272                    + android.Manifest.permission.DUMP);
12273            return;
12274        }
12275
12276        DumpState dumpState = new DumpState();
12277        boolean fullPreferred = false;
12278        boolean checkin = false;
12279
12280        String packageName = null;
12281
12282        int opti = 0;
12283        while (opti < args.length) {
12284            String opt = args[opti];
12285            if (opt == null || opt.length() <= 0 || opt.charAt(0) != '-') {
12286                break;
12287            }
12288            opti++;
12289
12290            if ("-a".equals(opt)) {
12291                // Right now we only know how to print all.
12292            } else if ("-h".equals(opt)) {
12293                pw.println("Package manager dump options:");
12294                pw.println("  [-h] [-f] [--checkin] [cmd] ...");
12295                pw.println("    --checkin: dump for a checkin");
12296                pw.println("    -f: print details of intent filters");
12297                pw.println("    -h: print this help");
12298                pw.println("  cmd may be one of:");
12299                pw.println("    l[ibraries]: list known shared libraries");
12300                pw.println("    f[ibraries]: list device features");
12301                pw.println("    k[eysets]: print known keysets");
12302                pw.println("    r[esolvers]: dump intent resolvers");
12303                pw.println("    perm[issions]: dump permissions");
12304                pw.println("    pref[erred]: print preferred package settings");
12305                pw.println("    preferred-xml [--full]: print preferred package settings as xml");
12306                pw.println("    prov[iders]: dump content providers");
12307                pw.println("    p[ackages]: dump installed packages");
12308                pw.println("    s[hared-users]: dump shared user IDs");
12309                pw.println("    m[essages]: print collected runtime messages");
12310                pw.println("    v[erifiers]: print package verifier info");
12311                pw.println("    version: print database version info");
12312                pw.println("    write: write current settings now");
12313                pw.println("    <package.name>: info about given package");
12314                pw.println("    installs: details about install sessions");
12315                return;
12316            } else if ("--checkin".equals(opt)) {
12317                checkin = true;
12318            } else if ("-f".equals(opt)) {
12319                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12320            } else {
12321                pw.println("Unknown argument: " + opt + "; use -h for help");
12322            }
12323        }
12324
12325        // Is the caller requesting to dump a particular piece of data?
12326        if (opti < args.length) {
12327            String cmd = args[opti];
12328            opti++;
12329            // Is this a package name?
12330            if ("android".equals(cmd) || cmd.contains(".")) {
12331                packageName = cmd;
12332                // When dumping a single package, we always dump all of its
12333                // filter information since the amount of data will be reasonable.
12334                dumpState.setOptionEnabled(DumpState.OPTION_SHOW_FILTERS);
12335            } else if ("l".equals(cmd) || "libraries".equals(cmd)) {
12336                dumpState.setDump(DumpState.DUMP_LIBS);
12337            } else if ("f".equals(cmd) || "features".equals(cmd)) {
12338                dumpState.setDump(DumpState.DUMP_FEATURES);
12339            } else if ("r".equals(cmd) || "resolvers".equals(cmd)) {
12340                dumpState.setDump(DumpState.DUMP_RESOLVERS);
12341            } else if ("perm".equals(cmd) || "permissions".equals(cmd)) {
12342                dumpState.setDump(DumpState.DUMP_PERMISSIONS);
12343            } else if ("pref".equals(cmd) || "preferred".equals(cmd)) {
12344                dumpState.setDump(DumpState.DUMP_PREFERRED);
12345            } else if ("preferred-xml".equals(cmd)) {
12346                dumpState.setDump(DumpState.DUMP_PREFERRED_XML);
12347                if (opti < args.length && "--full".equals(args[opti])) {
12348                    fullPreferred = true;
12349                    opti++;
12350                }
12351            } else if ("p".equals(cmd) || "packages".equals(cmd)) {
12352                dumpState.setDump(DumpState.DUMP_PACKAGES);
12353            } else if ("s".equals(cmd) || "shared-users".equals(cmd)) {
12354                dumpState.setDump(DumpState.DUMP_SHARED_USERS);
12355            } else if ("prov".equals(cmd) || "providers".equals(cmd)) {
12356                dumpState.setDump(DumpState.DUMP_PROVIDERS);
12357            } else if ("m".equals(cmd) || "messages".equals(cmd)) {
12358                dumpState.setDump(DumpState.DUMP_MESSAGES);
12359            } else if ("v".equals(cmd) || "verifiers".equals(cmd)) {
12360                dumpState.setDump(DumpState.DUMP_VERIFIERS);
12361            } else if ("version".equals(cmd)) {
12362                dumpState.setDump(DumpState.DUMP_VERSION);
12363            } else if ("k".equals(cmd) || "keysets".equals(cmd)) {
12364                dumpState.setDump(DumpState.DUMP_KEYSETS);
12365            } else if ("installs".equals(cmd)) {
12366                dumpState.setDump(DumpState.DUMP_INSTALLS);
12367            } else if ("write".equals(cmd)) {
12368                synchronized (mPackages) {
12369                    mSettings.writeLPr();
12370                    pw.println("Settings written.");
12371                    return;
12372                }
12373            }
12374        }
12375
12376        if (checkin) {
12377            pw.println("vers,1");
12378        }
12379
12380        // reader
12381        synchronized (mPackages) {
12382            if (dumpState.isDumping(DumpState.DUMP_VERSION) && packageName == null) {
12383                if (!checkin) {
12384                    if (dumpState.onTitlePrinted())
12385                        pw.println();
12386                    pw.println("Database versions:");
12387                    pw.print("  SDK Version:");
12388                    pw.print(" internal=");
12389                    pw.print(mSettings.mInternalSdkPlatform);
12390                    pw.print(" external=");
12391                    pw.println(mSettings.mExternalSdkPlatform);
12392                    pw.print("  DB Version:");
12393                    pw.print(" internal=");
12394                    pw.print(mSettings.mInternalDatabaseVersion);
12395                    pw.print(" external=");
12396                    pw.println(mSettings.mExternalDatabaseVersion);
12397                }
12398            }
12399
12400            if (dumpState.isDumping(DumpState.DUMP_VERIFIERS) && packageName == null) {
12401                if (!checkin) {
12402                    if (dumpState.onTitlePrinted())
12403                        pw.println();
12404                    pw.println("Verifiers:");
12405                    pw.print("  Required: ");
12406                    pw.print(mRequiredVerifierPackage);
12407                    pw.print(" (uid=");
12408                    pw.print(getPackageUid(mRequiredVerifierPackage, 0));
12409                    pw.println(")");
12410                } else if (mRequiredVerifierPackage != null) {
12411                    pw.print("vrfy,"); pw.print(mRequiredVerifierPackage);
12412                    pw.print(","); pw.println(getPackageUid(mRequiredVerifierPackage, 0));
12413                }
12414            }
12415
12416            if (dumpState.isDumping(DumpState.DUMP_LIBS) && packageName == null) {
12417                boolean printedHeader = false;
12418                final Iterator<String> it = mSharedLibraries.keySet().iterator();
12419                while (it.hasNext()) {
12420                    String name = it.next();
12421                    SharedLibraryEntry ent = mSharedLibraries.get(name);
12422                    if (!checkin) {
12423                        if (!printedHeader) {
12424                            if (dumpState.onTitlePrinted())
12425                                pw.println();
12426                            pw.println("Libraries:");
12427                            printedHeader = true;
12428                        }
12429                        pw.print("  ");
12430                    } else {
12431                        pw.print("lib,");
12432                    }
12433                    pw.print(name);
12434                    if (!checkin) {
12435                        pw.print(" -> ");
12436                    }
12437                    if (ent.path != null) {
12438                        if (!checkin) {
12439                            pw.print("(jar) ");
12440                            pw.print(ent.path);
12441                        } else {
12442                            pw.print(",jar,");
12443                            pw.print(ent.path);
12444                        }
12445                    } else {
12446                        if (!checkin) {
12447                            pw.print("(apk) ");
12448                            pw.print(ent.apk);
12449                        } else {
12450                            pw.print(",apk,");
12451                            pw.print(ent.apk);
12452                        }
12453                    }
12454                    pw.println();
12455                }
12456            }
12457
12458            if (dumpState.isDumping(DumpState.DUMP_FEATURES) && packageName == null) {
12459                if (dumpState.onTitlePrinted())
12460                    pw.println();
12461                if (!checkin) {
12462                    pw.println("Features:");
12463                }
12464                Iterator<String> it = mAvailableFeatures.keySet().iterator();
12465                while (it.hasNext()) {
12466                    String name = it.next();
12467                    if (!checkin) {
12468                        pw.print("  ");
12469                    } else {
12470                        pw.print("feat,");
12471                    }
12472                    pw.println(name);
12473                }
12474            }
12475
12476            if (!checkin && dumpState.isDumping(DumpState.DUMP_RESOLVERS)) {
12477                if (mActivities.dump(pw, dumpState.getTitlePrinted() ? "\nActivity Resolver Table:"
12478                        : "Activity Resolver Table:", "  ", packageName,
12479                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12480                    dumpState.setTitlePrinted(true);
12481                }
12482                if (mReceivers.dump(pw, dumpState.getTitlePrinted() ? "\nReceiver Resolver Table:"
12483                        : "Receiver Resolver Table:", "  ", packageName,
12484                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12485                    dumpState.setTitlePrinted(true);
12486                }
12487                if (mServices.dump(pw, dumpState.getTitlePrinted() ? "\nService Resolver Table:"
12488                        : "Service Resolver Table:", "  ", packageName,
12489                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12490                    dumpState.setTitlePrinted(true);
12491                }
12492                if (mProviders.dump(pw, dumpState.getTitlePrinted() ? "\nProvider Resolver Table:"
12493                        : "Provider Resolver Table:", "  ", packageName,
12494                        dumpState.isOptionEnabled(DumpState.OPTION_SHOW_FILTERS))) {
12495                    dumpState.setTitlePrinted(true);
12496                }
12497            }
12498
12499            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED)) {
12500                for (int i=0; i<mSettings.mPreferredActivities.size(); i++) {
12501                    PreferredIntentResolver pir = mSettings.mPreferredActivities.valueAt(i);
12502                    int user = mSettings.mPreferredActivities.keyAt(i);
12503                    if (pir.dump(pw,
12504                            dumpState.getTitlePrinted()
12505                                ? "\nPreferred Activities User " + user + ":"
12506                                : "Preferred Activities User " + user + ":", "  ",
12507                            packageName, true)) {
12508                        dumpState.setTitlePrinted(true);
12509                    }
12510                }
12511            }
12512
12513            if (!checkin && dumpState.isDumping(DumpState.DUMP_PREFERRED_XML)) {
12514                pw.flush();
12515                FileOutputStream fout = new FileOutputStream(fd);
12516                BufferedOutputStream str = new BufferedOutputStream(fout);
12517                XmlSerializer serializer = new FastXmlSerializer();
12518                try {
12519                    serializer.setOutput(str, "utf-8");
12520                    serializer.startDocument(null, true);
12521                    serializer.setFeature(
12522                            "http://xmlpull.org/v1/doc/features.html#indent-output", true);
12523                    mSettings.writePreferredActivitiesLPr(serializer, 0, fullPreferred);
12524                    serializer.endDocument();
12525                    serializer.flush();
12526                } catch (IllegalArgumentException e) {
12527                    pw.println("Failed writing: " + e);
12528                } catch (IllegalStateException e) {
12529                    pw.println("Failed writing: " + e);
12530                } catch (IOException e) {
12531                    pw.println("Failed writing: " + e);
12532                }
12533            }
12534
12535            if (!checkin && dumpState.isDumping(DumpState.DUMP_PERMISSIONS)) {
12536                mSettings.dumpPermissionsLPr(pw, packageName, dumpState);
12537                if (packageName == null) {
12538                    for (int iperm=0; iperm<mAppOpPermissionPackages.size(); iperm++) {
12539                        if (iperm == 0) {
12540                            if (dumpState.onTitlePrinted())
12541                                pw.println();
12542                            pw.println("AppOp Permissions:");
12543                        }
12544                        pw.print("  AppOp Permission ");
12545                        pw.print(mAppOpPermissionPackages.keyAt(iperm));
12546                        pw.println(":");
12547                        ArraySet<String> pkgs = mAppOpPermissionPackages.valueAt(iperm);
12548                        for (int ipkg=0; ipkg<pkgs.size(); ipkg++) {
12549                            pw.print("    "); pw.println(pkgs.valueAt(ipkg));
12550                        }
12551                    }
12552                }
12553            }
12554
12555            if (!checkin && dumpState.isDumping(DumpState.DUMP_PROVIDERS)) {
12556                boolean printedSomething = false;
12557                for (PackageParser.Provider p : mProviders.mProviders.values()) {
12558                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12559                        continue;
12560                    }
12561                    if (!printedSomething) {
12562                        if (dumpState.onTitlePrinted())
12563                            pw.println();
12564                        pw.println("Registered ContentProviders:");
12565                        printedSomething = true;
12566                    }
12567                    pw.print("  "); p.printComponentShortName(pw); pw.println(":");
12568                    pw.print("    "); pw.println(p.toString());
12569                }
12570                printedSomething = false;
12571                for (Map.Entry<String, PackageParser.Provider> entry :
12572                        mProvidersByAuthority.entrySet()) {
12573                    PackageParser.Provider p = entry.getValue();
12574                    if (packageName != null && !packageName.equals(p.info.packageName)) {
12575                        continue;
12576                    }
12577                    if (!printedSomething) {
12578                        if (dumpState.onTitlePrinted())
12579                            pw.println();
12580                        pw.println("ContentProvider Authorities:");
12581                        printedSomething = true;
12582                    }
12583                    pw.print("  ["); pw.print(entry.getKey()); pw.println("]:");
12584                    pw.print("    "); pw.println(p.toString());
12585                    if (p.info != null && p.info.applicationInfo != null) {
12586                        final String appInfo = p.info.applicationInfo.toString();
12587                        pw.print("      applicationInfo="); pw.println(appInfo);
12588                    }
12589                }
12590            }
12591
12592            if (!checkin && dumpState.isDumping(DumpState.DUMP_KEYSETS)) {
12593                mSettings.mKeySetManagerService.dumpLPr(pw, packageName, dumpState);
12594            }
12595
12596            if (dumpState.isDumping(DumpState.DUMP_PACKAGES)) {
12597                mSettings.dumpPackagesLPr(pw, packageName, dumpState, checkin);
12598            }
12599
12600            if (!checkin && dumpState.isDumping(DumpState.DUMP_SHARED_USERS)) {
12601                mSettings.dumpSharedUsersLPr(pw, packageName, dumpState);
12602            }
12603
12604            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
12605                // XXX should handle packageName != null by dumping only install data that
12606                // the given package is involved with.
12607                if (dumpState.onTitlePrinted()) pw.println();
12608                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
12609            }
12610
12611            if (!checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES) && packageName == null) {
12612                if (dumpState.onTitlePrinted()) pw.println();
12613                mSettings.dumpReadMessagesLPr(pw, dumpState);
12614
12615                pw.println();
12616                pw.println("Package warning messages:");
12617                final File fname = getSettingsProblemFile();
12618                FileInputStream in = null;
12619                try {
12620                    in = new FileInputStream(fname);
12621                    final int avail = in.available();
12622                    final byte[] data = new byte[avail];
12623                    in.read(data);
12624                    pw.print(new String(data));
12625                } catch (FileNotFoundException e) {
12626                } catch (IOException e) {
12627                } finally {
12628                    if (in != null) {
12629                        try {
12630                            in.close();
12631                        } catch (IOException e) {
12632                        }
12633                    }
12634                }
12635            }
12636
12637            if (checkin && dumpState.isDumping(DumpState.DUMP_MESSAGES)) {
12638                BufferedReader in = null;
12639                String line = null;
12640                try {
12641                    in = new BufferedReader(new FileReader(getSettingsProblemFile()));
12642                    while ((line = in.readLine()) != null) {
12643                        pw.print("msg,");
12644                        pw.println(line);
12645                    }
12646                } catch (IOException ignored) {
12647                } finally {
12648                    IoUtils.closeQuietly(in);
12649                }
12650            }
12651        }
12652    }
12653
12654    // ------- apps on sdcard specific code -------
12655    static final boolean DEBUG_SD_INSTALL = false;
12656
12657    private static final String SD_ENCRYPTION_KEYSTORE_NAME = "AppsOnSD";
12658
12659    private static final String SD_ENCRYPTION_ALGORITHM = "AES";
12660
12661    private boolean mMediaMounted = false;
12662
12663    static String getEncryptKey() {
12664        try {
12665            String sdEncKey = SystemKeyStore.getInstance().retrieveKeyHexString(
12666                    SD_ENCRYPTION_KEYSTORE_NAME);
12667            if (sdEncKey == null) {
12668                sdEncKey = SystemKeyStore.getInstance().generateNewKeyHexString(128,
12669                        SD_ENCRYPTION_ALGORITHM, SD_ENCRYPTION_KEYSTORE_NAME);
12670                if (sdEncKey == null) {
12671                    Slog.e(TAG, "Failed to create encryption keys");
12672                    return null;
12673                }
12674            }
12675            return sdEncKey;
12676        } catch (NoSuchAlgorithmException nsae) {
12677            Slog.e(TAG, "Failed to create encryption keys with exception: " + nsae);
12678            return null;
12679        } catch (IOException ioe) {
12680            Slog.e(TAG, "Failed to retrieve encryption keys with exception: " + ioe);
12681            return null;
12682        }
12683    }
12684
12685    /*
12686     * Update media status on PackageManager.
12687     */
12688    @Override
12689    public void updateExternalMediaStatus(final boolean mediaStatus, final boolean reportStatus) {
12690        int callingUid = Binder.getCallingUid();
12691        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
12692            throw new SecurityException("Media status can only be updated by the system");
12693        }
12694        // reader; this apparently protects mMediaMounted, but should probably
12695        // be a different lock in that case.
12696        synchronized (mPackages) {
12697            Log.i(TAG, "Updating external media status from "
12698                    + (mMediaMounted ? "mounted" : "unmounted") + " to "
12699                    + (mediaStatus ? "mounted" : "unmounted"));
12700            if (DEBUG_SD_INSTALL)
12701                Log.i(TAG, "updateExternalMediaStatus:: mediaStatus=" + mediaStatus
12702                        + ", mMediaMounted=" + mMediaMounted);
12703            if (mediaStatus == mMediaMounted) {
12704                final Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1
12705                        : 0, -1);
12706                mHandler.sendMessage(msg);
12707                return;
12708            }
12709            mMediaMounted = mediaStatus;
12710        }
12711        // Queue up an async operation since the package installation may take a
12712        // little while.
12713        mHandler.post(new Runnable() {
12714            public void run() {
12715                updateExternalMediaStatusInner(mediaStatus, reportStatus, true);
12716            }
12717        });
12718    }
12719
12720    /**
12721     * Called by MountService when the initial ASECs to scan are available.
12722     * Should block until all the ASEC containers are finished being scanned.
12723     */
12724    public void scanAvailableAsecs() {
12725        updateExternalMediaStatusInner(true, false, false);
12726        if (mShouldRestoreconData) {
12727            SELinuxMMAC.setRestoreconDone();
12728            mShouldRestoreconData = false;
12729        }
12730    }
12731
12732    /*
12733     * Collect information of applications on external media, map them against
12734     * existing containers and update information based on current mount status.
12735     * Please note that we always have to report status if reportStatus has been
12736     * set to true especially when unloading packages.
12737     */
12738    private void updateExternalMediaStatusInner(boolean isMounted, boolean reportStatus,
12739            boolean externalStorage) {
12740        ArrayMap<AsecInstallArgs, String> processCids = new ArrayMap<>();
12741        int[] uidArr = EmptyArray.INT;
12742
12743        final String[] list = PackageHelper.getSecureContainerList();
12744        if (ArrayUtils.isEmpty(list)) {
12745            Log.i(TAG, "No secure containers found");
12746        } else {
12747            // Process list of secure containers and categorize them
12748            // as active or stale based on their package internal state.
12749
12750            // reader
12751            synchronized (mPackages) {
12752                for (String cid : list) {
12753                    // Leave stages untouched for now; installer service owns them
12754                    if (PackageInstallerService.isStageName(cid)) continue;
12755
12756                    if (DEBUG_SD_INSTALL)
12757                        Log.i(TAG, "Processing container " + cid);
12758                    String pkgName = getAsecPackageName(cid);
12759                    if (pkgName == null) {
12760                        Slog.i(TAG, "Found stale container " + cid + " with no package name");
12761                        continue;
12762                    }
12763                    if (DEBUG_SD_INSTALL)
12764                        Log.i(TAG, "Looking for pkg : " + pkgName);
12765
12766                    final PackageSetting ps = mSettings.mPackages.get(pkgName);
12767                    if (ps == null) {
12768                        Slog.i(TAG, "Found stale container " + cid + " with no matching settings");
12769                        continue;
12770                    }
12771
12772                    /*
12773                     * Skip packages that are not external if we're unmounting
12774                     * external storage.
12775                     */
12776                    if (externalStorage && !isMounted && !isExternal(ps)) {
12777                        continue;
12778                    }
12779
12780                    final AsecInstallArgs args = new AsecInstallArgs(cid,
12781                            getAppDexInstructionSets(ps), isForwardLocked(ps));
12782                    // The package status is changed only if the code path
12783                    // matches between settings and the container id.
12784                    if (ps.codePathString != null
12785                            && ps.codePathString.startsWith(args.getCodePath())) {
12786                        if (DEBUG_SD_INSTALL) {
12787                            Log.i(TAG, "Container : " + cid + " corresponds to pkg : " + pkgName
12788                                    + " at code path: " + ps.codePathString);
12789                        }
12790
12791                        // We do have a valid package installed on sdcard
12792                        processCids.put(args, ps.codePathString);
12793                        final int uid = ps.appId;
12794                        if (uid != -1) {
12795                            uidArr = ArrayUtils.appendInt(uidArr, uid);
12796                        }
12797                    } else {
12798                        Slog.i(TAG, "Found stale container " + cid + ": expected codePath="
12799                                + ps.codePathString);
12800                    }
12801                }
12802            }
12803
12804            Arrays.sort(uidArr);
12805        }
12806
12807        // Process packages with valid entries.
12808        if (isMounted) {
12809            if (DEBUG_SD_INSTALL)
12810                Log.i(TAG, "Loading packages");
12811            loadMediaPackages(processCids, uidArr);
12812            startCleaningPackages();
12813            mInstallerService.onSecureContainersAvailable();
12814        } else {
12815            if (DEBUG_SD_INSTALL)
12816                Log.i(TAG, "Unloading packages");
12817            unloadMediaPackages(processCids, uidArr, reportStatus);
12818        }
12819    }
12820
12821    private void sendResourcesChangedBroadcast(boolean mediaStatus, boolean replacing,
12822            ArrayList<String> pkgList, int uidArr[], IIntentReceiver finishedReceiver) {
12823        int size = pkgList.size();
12824        if (size > 0) {
12825            // Send broadcasts here
12826            Bundle extras = new Bundle();
12827            extras.putStringArray(Intent.EXTRA_CHANGED_PACKAGE_LIST, pkgList
12828                    .toArray(new String[size]));
12829            if (uidArr != null) {
12830                extras.putIntArray(Intent.EXTRA_CHANGED_UID_LIST, uidArr);
12831            }
12832            if (replacing) {
12833                extras.putBoolean(Intent.EXTRA_REPLACING, replacing);
12834            }
12835            String action = mediaStatus ? Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE
12836                    : Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE;
12837            sendPackageBroadcast(action, null, extras, null, finishedReceiver, null);
12838        }
12839    }
12840
12841   /*
12842     * Look at potentially valid container ids from processCids If package
12843     * information doesn't match the one on record or package scanning fails,
12844     * the cid is added to list of removeCids. We currently don't delete stale
12845     * containers.
12846     */
12847    private void loadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int[] uidArr) {
12848        ArrayList<String> pkgList = new ArrayList<String>();
12849        Set<AsecInstallArgs> keys = processCids.keySet();
12850
12851        for (AsecInstallArgs args : keys) {
12852            String codePath = processCids.get(args);
12853            if (DEBUG_SD_INSTALL)
12854                Log.i(TAG, "Loading container : " + args.cid);
12855            int retCode = PackageManager.INSTALL_FAILED_CONTAINER_ERROR;
12856            try {
12857                // Make sure there are no container errors first.
12858                if (args.doPreInstall(PackageManager.INSTALL_SUCCEEDED) != PackageManager.INSTALL_SUCCEEDED) {
12859                    Slog.e(TAG, "Failed to mount cid : " + args.cid
12860                            + " when installing from sdcard");
12861                    continue;
12862                }
12863                // Check code path here.
12864                if (codePath == null || !codePath.startsWith(args.getCodePath())) {
12865                    Slog.e(TAG, "Container " + args.cid + " cachepath " + args.getCodePath()
12866                            + " does not match one in settings " + codePath);
12867                    continue;
12868                }
12869                // Parse package
12870                int parseFlags = mDefParseFlags;
12871                if (args.isExternal()) {
12872                    parseFlags |= PackageParser.PARSE_ON_SDCARD;
12873                }
12874                if (args.isFwdLocked()) {
12875                    parseFlags |= PackageParser.PARSE_FORWARD_LOCK;
12876                }
12877
12878                synchronized (mInstallLock) {
12879                    PackageParser.Package pkg = null;
12880                    try {
12881                        pkg = scanPackageLI(new File(codePath), parseFlags, 0, 0, null);
12882                    } catch (PackageManagerException e) {
12883                        Slog.w(TAG, "Failed to scan " + codePath + ": " + e.getMessage());
12884                    }
12885                    // Scan the package
12886                    if (pkg != null) {
12887                        /*
12888                         * TODO why is the lock being held? doPostInstall is
12889                         * called in other places without the lock. This needs
12890                         * to be straightened out.
12891                         */
12892                        // writer
12893                        synchronized (mPackages) {
12894                            retCode = PackageManager.INSTALL_SUCCEEDED;
12895                            pkgList.add(pkg.packageName);
12896                            // Post process args
12897                            args.doPostInstall(PackageManager.INSTALL_SUCCEEDED,
12898                                    pkg.applicationInfo.uid);
12899                        }
12900                    } else {
12901                        Slog.i(TAG, "Failed to install pkg from  " + codePath + " from sdcard");
12902                    }
12903                }
12904
12905            } finally {
12906                if (retCode != PackageManager.INSTALL_SUCCEEDED) {
12907                    Log.w(TAG, "Container " + args.cid + " is stale, retCode=" + retCode);
12908                }
12909            }
12910        }
12911        // writer
12912        synchronized (mPackages) {
12913            // If the platform SDK has changed since the last time we booted,
12914            // we need to re-grant app permission to catch any new ones that
12915            // appear. This is really a hack, and means that apps can in some
12916            // cases get permissions that the user didn't initially explicitly
12917            // allow... it would be nice to have some better way to handle
12918            // this situation.
12919            final boolean regrantPermissions = mSettings.mExternalSdkPlatform != mSdkVersion;
12920            if (regrantPermissions)
12921                Slog.i(TAG, "Platform changed from " + mSettings.mExternalSdkPlatform + " to "
12922                        + mSdkVersion + "; regranting permissions for external storage");
12923            mSettings.mExternalSdkPlatform = mSdkVersion;
12924
12925            // Make sure group IDs have been assigned, and any permission
12926            // changes in other apps are accounted for
12927            updatePermissionsLPw(null, null, UPDATE_PERMISSIONS_ALL
12928                    | (regrantPermissions
12929                            ? (UPDATE_PERMISSIONS_REPLACE_PKG|UPDATE_PERMISSIONS_REPLACE_ALL)
12930                            : 0));
12931
12932            mSettings.updateExternalDatabaseVersion();
12933
12934            // can downgrade to reader
12935            // Persist settings
12936            mSettings.writeLPr();
12937        }
12938        // Send a broadcast to let everyone know we are done processing
12939        if (pkgList.size() > 0) {
12940            sendResourcesChangedBroadcast(true, false, pkgList, uidArr, null);
12941        }
12942    }
12943
12944   /*
12945     * Utility method to unload a list of specified containers
12946     */
12947    private void unloadAllContainers(Set<AsecInstallArgs> cidArgs) {
12948        // Just unmount all valid containers.
12949        for (AsecInstallArgs arg : cidArgs) {
12950            synchronized (mInstallLock) {
12951                arg.doPostDeleteLI(false);
12952           }
12953       }
12954   }
12955
12956    /*
12957     * Unload packages mounted on external media. This involves deleting package
12958     * data from internal structures, sending broadcasts about diabled packages,
12959     * gc'ing to free up references, unmounting all secure containers
12960     * corresponding to packages on external media, and posting a
12961     * UPDATED_MEDIA_STATUS message if status has been requested. Please note
12962     * that we always have to post this message if status has been requested no
12963     * matter what.
12964     */
12965    private void unloadMediaPackages(ArrayMap<AsecInstallArgs, String> processCids, int uidArr[],
12966            final boolean reportStatus) {
12967        if (DEBUG_SD_INSTALL)
12968            Log.i(TAG, "unloading media packages");
12969        ArrayList<String> pkgList = new ArrayList<String>();
12970        ArrayList<AsecInstallArgs> failedList = new ArrayList<AsecInstallArgs>();
12971        final Set<AsecInstallArgs> keys = processCids.keySet();
12972        for (AsecInstallArgs args : keys) {
12973            String pkgName = args.getPackageName();
12974            if (DEBUG_SD_INSTALL)
12975                Log.i(TAG, "Trying to unload pkg : " + pkgName);
12976            // Delete package internally
12977            PackageRemovedInfo outInfo = new PackageRemovedInfo();
12978            synchronized (mInstallLock) {
12979                boolean res = deletePackageLI(pkgName, null, false, null, null,
12980                        PackageManager.DELETE_KEEP_DATA, outInfo, false);
12981                if (res) {
12982                    pkgList.add(pkgName);
12983                } else {
12984                    Slog.e(TAG, "Failed to delete pkg from sdcard : " + pkgName);
12985                    failedList.add(args);
12986                }
12987            }
12988        }
12989
12990        // reader
12991        synchronized (mPackages) {
12992            // We didn't update the settings after removing each package;
12993            // write them now for all packages.
12994            mSettings.writeLPr();
12995        }
12996
12997        // We have to absolutely send UPDATED_MEDIA_STATUS only
12998        // after confirming that all the receivers processed the ordered
12999        // broadcast when packages get disabled, force a gc to clean things up.
13000        // and unload all the containers.
13001        if (pkgList.size() > 0) {
13002            sendResourcesChangedBroadcast(false, false, pkgList, uidArr,
13003                    new IIntentReceiver.Stub() {
13004                public void performReceive(Intent intent, int resultCode, String data,
13005                        Bundle extras, boolean ordered, boolean sticky,
13006                        int sendingUser) throws RemoteException {
13007                    Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS,
13008                            reportStatus ? 1 : 0, 1, keys);
13009                    mHandler.sendMessage(msg);
13010                }
13011            });
13012        } else {
13013            Message msg = mHandler.obtainMessage(UPDATED_MEDIA_STATUS, reportStatus ? 1 : 0, -1,
13014                    keys);
13015            mHandler.sendMessage(msg);
13016        }
13017    }
13018
13019    /** Binder call */
13020    @Override
13021    public void movePackage(final String packageName, final IPackageMoveObserver observer,
13022            final int flags) {
13023        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MOVE_PACKAGE, null);
13024        UserHandle user = new UserHandle(UserHandle.getCallingUserId());
13025        int returnCode = PackageManager.MOVE_SUCCEEDED;
13026        int currInstallFlags = 0;
13027        int newInstallFlags = 0;
13028
13029        File codeFile = null;
13030        String installerPackageName = null;
13031        String packageAbiOverride = null;
13032
13033        // reader
13034        synchronized (mPackages) {
13035            final PackageParser.Package pkg = mPackages.get(packageName);
13036            final PackageSetting ps = mSettings.mPackages.get(packageName);
13037            if (pkg == null || ps == null) {
13038                returnCode = PackageManager.MOVE_FAILED_DOESNT_EXIST;
13039            } else {
13040                // Disable moving fwd locked apps and system packages
13041                if (pkg.applicationInfo != null && isSystemApp(pkg)) {
13042                    Slog.w(TAG, "Cannot move system application");
13043                    returnCode = PackageManager.MOVE_FAILED_SYSTEM_PACKAGE;
13044                } else if (pkg.mOperationPending) {
13045                    Slog.w(TAG, "Attempt to move package which has pending operations");
13046                    returnCode = PackageManager.MOVE_FAILED_OPERATION_PENDING;
13047                } else {
13048                    // Find install location first
13049                    if ((flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13050                            && (flags & PackageManager.MOVE_INTERNAL) != 0) {
13051                        Slog.w(TAG, "Ambigous flags specified for move location.");
13052                        returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13053                    } else {
13054                        newInstallFlags = (flags & PackageManager.MOVE_EXTERNAL_MEDIA) != 0
13055                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13056                        currInstallFlags = isExternal(pkg)
13057                                ? PackageManager.INSTALL_EXTERNAL : PackageManager.INSTALL_INTERNAL;
13058
13059                        if (newInstallFlags == currInstallFlags) {
13060                            Slog.w(TAG, "No move required. Trying to move to same location");
13061                            returnCode = PackageManager.MOVE_FAILED_INVALID_LOCATION;
13062                        } else {
13063                            if (isForwardLocked(pkg)) {
13064                                currInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13065                                newInstallFlags |= PackageManager.INSTALL_FORWARD_LOCK;
13066                            }
13067                        }
13068                    }
13069                    if (returnCode == PackageManager.MOVE_SUCCEEDED) {
13070                        pkg.mOperationPending = true;
13071                    }
13072                }
13073
13074                codeFile = new File(pkg.codePath);
13075                installerPackageName = ps.installerPackageName;
13076                packageAbiOverride = ps.cpuAbiOverrideString;
13077            }
13078        }
13079
13080        if (returnCode != PackageManager.MOVE_SUCCEEDED) {
13081            try {
13082                observer.packageMoved(packageName, returnCode);
13083            } catch (RemoteException ignored) {
13084            }
13085            return;
13086        }
13087
13088        final IPackageInstallObserver2 installObserver = new IPackageInstallObserver2.Stub() {
13089            @Override
13090            public void onUserActionRequired(Intent intent) throws RemoteException {
13091                throw new IllegalStateException();
13092            }
13093
13094            @Override
13095            public void onPackageInstalled(String basePackageName, int returnCode, String msg,
13096                    Bundle extras) throws RemoteException {
13097                Slog.d(TAG, "Install result for move: "
13098                        + PackageManager.installStatusToString(returnCode, msg));
13099
13100                // We usually have a new package now after the install, but if
13101                // we failed we need to clear the pending flag on the original
13102                // package object.
13103                synchronized (mPackages) {
13104                    final PackageParser.Package pkg = mPackages.get(packageName);
13105                    if (pkg != null) {
13106                        pkg.mOperationPending = false;
13107                    }
13108                }
13109
13110                final int status = PackageManager.installStatusToPublicStatus(returnCode);
13111                switch (status) {
13112                    case PackageInstaller.STATUS_SUCCESS:
13113                        observer.packageMoved(packageName, PackageManager.MOVE_SUCCEEDED);
13114                        break;
13115                    case PackageInstaller.STATUS_FAILURE_STORAGE:
13116                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INSUFFICIENT_STORAGE);
13117                        break;
13118                    default:
13119                        observer.packageMoved(packageName, PackageManager.MOVE_FAILED_INTERNAL_ERROR);
13120                        break;
13121                }
13122            }
13123        };
13124
13125        // Treat a move like reinstalling an existing app, which ensures that we
13126        // process everythign uniformly, like unpacking native libraries.
13127        newInstallFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
13128
13129        final Message msg = mHandler.obtainMessage(INIT_COPY);
13130        final OriginInfo origin = OriginInfo.fromExistingFile(codeFile);
13131        msg.obj = new InstallParams(origin, installObserver, newInstallFlags,
13132                installerPackageName, null, user, packageAbiOverride);
13133        mHandler.sendMessage(msg);
13134    }
13135
13136    @Override
13137    public boolean setInstallLocation(int loc) {
13138        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS,
13139                null);
13140        if (getInstallLocation() == loc) {
13141            return true;
13142        }
13143        if (loc == PackageHelper.APP_INSTALL_AUTO || loc == PackageHelper.APP_INSTALL_INTERNAL
13144                || loc == PackageHelper.APP_INSTALL_EXTERNAL) {
13145            android.provider.Settings.Global.putInt(mContext.getContentResolver(),
13146                    android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION, loc);
13147            return true;
13148        }
13149        return false;
13150   }
13151
13152    @Override
13153    public int getInstallLocation() {
13154        return android.provider.Settings.Global.getInt(mContext.getContentResolver(),
13155                android.provider.Settings.Global.DEFAULT_INSTALL_LOCATION,
13156                PackageHelper.APP_INSTALL_AUTO);
13157    }
13158
13159    /** Called by UserManagerService */
13160    void cleanUpUserLILPw(UserManagerService userManager, int userHandle) {
13161        mDirtyUsers.remove(userHandle);
13162        mSettings.removeUserLPw(userHandle);
13163        mPendingBroadcasts.remove(userHandle);
13164        if (mInstaller != null) {
13165            // Technically, we shouldn't be doing this with the package lock
13166            // held.  However, this is very rare, and there is already so much
13167            // other disk I/O going on, that we'll let it slide for now.
13168            mInstaller.removeUserDataDirs(userHandle);
13169        }
13170        mUserNeedsBadging.delete(userHandle);
13171        removeUnusedPackagesLILPw(userManager, userHandle);
13172    }
13173
13174    /**
13175     * We're removing userHandle and would like to remove any downloaded packages
13176     * that are no longer in use by any other user.
13177     * @param userHandle the user being removed
13178     */
13179    private void removeUnusedPackagesLILPw(UserManagerService userManager, final int userHandle) {
13180        final boolean DEBUG_CLEAN_APKS = false;
13181        int [] users = userManager.getUserIdsLPr();
13182        Iterator<PackageSetting> psit = mSettings.mPackages.values().iterator();
13183        while (psit.hasNext()) {
13184            PackageSetting ps = psit.next();
13185            if (ps.pkg == null) {
13186                continue;
13187            }
13188            final String packageName = ps.pkg.packageName;
13189            // Skip over if system app
13190            if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) != 0) {
13191                continue;
13192            }
13193            if (DEBUG_CLEAN_APKS) {
13194                Slog.i(TAG, "Checking package " + packageName);
13195            }
13196            boolean keep = false;
13197            for (int i = 0; i < users.length; i++) {
13198                if (users[i] != userHandle && ps.getInstalled(users[i])) {
13199                    keep = true;
13200                    if (DEBUG_CLEAN_APKS) {
13201                        Slog.i(TAG, "  Keeping package " + packageName + " for user "
13202                                + users[i]);
13203                    }
13204                    break;
13205                }
13206            }
13207            if (!keep) {
13208                if (DEBUG_CLEAN_APKS) {
13209                    Slog.i(TAG, "  Removing package " + packageName);
13210                }
13211                mHandler.post(new Runnable() {
13212                    public void run() {
13213                        deletePackageX(packageName, userHandle, 0);
13214                    } //end run
13215                });
13216            }
13217        }
13218    }
13219
13220    /** Called by UserManagerService */
13221    void createNewUserLILPw(int userHandle, File path) {
13222        if (mInstaller != null) {
13223            mInstaller.createUserConfig(userHandle);
13224            mSettings.createNewUserLILPw(this, mInstaller, userHandle, path);
13225        }
13226    }
13227
13228    @Override
13229    public VerifierDeviceIdentity getVerifierDeviceIdentity() throws RemoteException {
13230        mContext.enforceCallingOrSelfPermission(
13231                android.Manifest.permission.PACKAGE_VERIFICATION_AGENT,
13232                "Only package verification agents can read the verifier device identity");
13233
13234        synchronized (mPackages) {
13235            return mSettings.getVerifierDeviceIdentityLPw();
13236        }
13237    }
13238
13239    @Override
13240    public void setPermissionEnforced(String permission, boolean enforced) {
13241        mContext.enforceCallingOrSelfPermission(GRANT_REVOKE_PERMISSIONS, null);
13242        if (READ_EXTERNAL_STORAGE.equals(permission)) {
13243            synchronized (mPackages) {
13244                if (mSettings.mReadExternalStorageEnforced == null
13245                        || mSettings.mReadExternalStorageEnforced != enforced) {
13246                    mSettings.mReadExternalStorageEnforced = enforced;
13247                    mSettings.writeLPr();
13248                }
13249            }
13250            // kill any non-foreground processes so we restart them and
13251            // grant/revoke the GID.
13252            final IActivityManager am = ActivityManagerNative.getDefault();
13253            if (am != null) {
13254                final long token = Binder.clearCallingIdentity();
13255                try {
13256                    am.killProcessesBelowForeground("setPermissionEnforcement");
13257                } catch (RemoteException e) {
13258                } finally {
13259                    Binder.restoreCallingIdentity(token);
13260                }
13261            }
13262        } else {
13263            throw new IllegalArgumentException("No selective enforcement for " + permission);
13264        }
13265    }
13266
13267    @Override
13268    @Deprecated
13269    public boolean isPermissionEnforced(String permission) {
13270        return true;
13271    }
13272
13273    @Override
13274    public boolean isStorageLow() {
13275        final long token = Binder.clearCallingIdentity();
13276        try {
13277            final DeviceStorageMonitorInternal
13278                    dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
13279            if (dsm != null) {
13280                return dsm.isMemoryLow();
13281            } else {
13282                return false;
13283            }
13284        } finally {
13285            Binder.restoreCallingIdentity(token);
13286        }
13287    }
13288
13289    @Override
13290    public IPackageInstaller getPackageInstaller() {
13291        return mInstallerService;
13292    }
13293
13294    private boolean userNeedsBadging(int userId) {
13295        int index = mUserNeedsBadging.indexOfKey(userId);
13296        if (index < 0) {
13297            final UserInfo userInfo;
13298            final long token = Binder.clearCallingIdentity();
13299            try {
13300                userInfo = sUserManager.getUserInfo(userId);
13301            } finally {
13302                Binder.restoreCallingIdentity(token);
13303            }
13304            final boolean b;
13305            if (userInfo != null && userInfo.isManagedProfile()) {
13306                b = true;
13307            } else {
13308                b = false;
13309            }
13310            mUserNeedsBadging.put(userId, b);
13311            return b;
13312        }
13313        return mUserNeedsBadging.valueAt(index);
13314    }
13315
13316    @Override
13317    public KeySet getKeySetByAlias(String packageName, String alias) {
13318        if (packageName == null || alias == null) {
13319            return null;
13320        }
13321        synchronized(mPackages) {
13322            final PackageParser.Package pkg = mPackages.get(packageName);
13323            if (pkg == null) {
13324                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13325                throw new IllegalArgumentException("Unknown package: " + packageName);
13326            }
13327            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13328            return new KeySet(ksms.getKeySetByAliasAndPackageNameLPr(packageName, alias));
13329        }
13330    }
13331
13332    @Override
13333    public KeySet getSigningKeySet(String packageName) {
13334        if (packageName == null) {
13335            return null;
13336        }
13337        synchronized(mPackages) {
13338            final PackageParser.Package pkg = mPackages.get(packageName);
13339            if (pkg == null) {
13340                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13341                throw new IllegalArgumentException("Unknown package: " + packageName);
13342            }
13343            if (pkg.applicationInfo.uid != Binder.getCallingUid()
13344                    && Process.SYSTEM_UID != Binder.getCallingUid()) {
13345                throw new SecurityException("May not access signing KeySet of other apps.");
13346            }
13347            KeySetManagerService ksms = mSettings.mKeySetManagerService;
13348            return new KeySet(ksms.getSigningKeySetByPackageNameLPr(packageName));
13349        }
13350    }
13351
13352    @Override
13353    public boolean isPackageSignedByKeySet(String packageName, KeySet ks) {
13354        if (packageName == null || ks == null) {
13355            return false;
13356        }
13357        synchronized(mPackages) {
13358            final PackageParser.Package pkg = mPackages.get(packageName);
13359            if (pkg == null) {
13360                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13361                throw new IllegalArgumentException("Unknown package: " + packageName);
13362            }
13363            IBinder ksh = ks.getToken();
13364            if (ksh instanceof KeySetHandle) {
13365                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13366                return ksms.packageIsSignedByLPr(packageName, (KeySetHandle) ksh);
13367            }
13368            return false;
13369        }
13370    }
13371
13372    @Override
13373    public boolean isPackageSignedByKeySetExactly(String packageName, KeySet ks) {
13374        if (packageName == null || ks == null) {
13375            return false;
13376        }
13377        synchronized(mPackages) {
13378            final PackageParser.Package pkg = mPackages.get(packageName);
13379            if (pkg == null) {
13380                Slog.w(TAG, "KeySet requested for unknown package:" + packageName);
13381                throw new IllegalArgumentException("Unknown package: " + packageName);
13382            }
13383            IBinder ksh = ks.getToken();
13384            if (ksh instanceof KeySetHandle) {
13385                KeySetManagerService ksms = mSettings.mKeySetManagerService;
13386                return ksms.packageIsSignedByExactlyLPr(packageName, (KeySetHandle) ksh);
13387            }
13388            return false;
13389        }
13390    }
13391}
13392