Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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 | |
| 17 | package com.android.server.rollback; |
| 18 | |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 19 | import android.Manifest; |
Richard Uhler | 2a5facc | 2019-02-18 11:33:03 +0000 | [diff] [blame] | 20 | import android.annotation.NonNull; |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 21 | import android.annotation.UserIdInt; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 22 | import android.app.AppOpsManager; |
| 23 | import android.content.BroadcastReceiver; |
| 24 | import android.content.Context; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 25 | import android.content.Intent; |
| 26 | import android.content.IntentFilter; |
| 27 | import android.content.IntentSender; |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 28 | import android.content.pm.ApplicationInfo; |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 29 | import android.content.pm.ModuleInfo; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 30 | import android.content.pm.PackageInfo; |
| 31 | import android.content.pm.PackageInstaller; |
| 32 | import android.content.pm.PackageManager; |
| 33 | import android.content.pm.PackageManagerInternal; |
| 34 | import android.content.pm.PackageParser; |
| 35 | import android.content.pm.ParceledListSlice; |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 36 | import android.content.pm.UserInfo; |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 37 | import android.content.pm.VersionedPackage; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 38 | import android.content.rollback.IRollbackManager; |
| 39 | import android.content.rollback.PackageRollbackInfo; |
| 40 | import android.content.rollback.RollbackInfo; |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 41 | import android.content.rollback.RollbackManager; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 42 | import android.os.Binder; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 43 | import android.os.Environment; |
| 44 | import android.os.Handler; |
| 45 | import android.os.HandlerThread; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 46 | import android.os.ParcelFileDescriptor; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 47 | import android.os.Process; |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 48 | import android.os.UserHandle; // duped to avoid merge conflict |
| 49 | import android.os.UserManager; // out of order to avoid merge conflict |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 50 | import android.os.SystemClock; |
shafik | 74fec18 | 2019-03-14 16:29:48 +0000 | [diff] [blame] | 51 | import android.os.UserHandle; |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 52 | import android.provider.DeviceConfig; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 53 | import android.util.ArraySet; |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 54 | import android.util.IntArray; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 55 | import android.util.Log; |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 56 | import android.util.SparseBooleanArray; |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 57 | import android.util.SparseLongArray; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 58 | |
| 59 | import com.android.internal.annotations.GuardedBy; |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 60 | import com.android.internal.util.ArrayUtils; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 61 | import com.android.internal.util.IndentingPrintWriter; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 62 | import com.android.server.LocalServices; |
shafik | 18b627e | 2019-05-01 20:41:48 +0100 | [diff] [blame] | 63 | import com.android.server.Watchdog; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 64 | import com.android.server.pm.Installer; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 65 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 66 | import java.io.File; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 67 | import java.io.FileDescriptor; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 68 | import java.io.IOException; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 69 | import java.io.PrintWriter; |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 70 | import java.security.SecureRandom; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 71 | import java.time.Instant; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 72 | import java.time.temporal.ChronoUnit; |
| 73 | import java.util.ArrayList; |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 74 | import java.util.HashSet; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 75 | import java.util.Iterator; |
| 76 | import java.util.List; |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 77 | import java.util.Random; |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 78 | import java.util.Set; |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 79 | import java.util.concurrent.LinkedBlockingQueue; |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 80 | import java.util.concurrent.TimeUnit; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 81 | |
| 82 | /** |
| 83 | * Implementation of service that manages APK level rollbacks. |
| 84 | */ |
| 85 | class RollbackManagerServiceImpl extends IRollbackManager.Stub { |
| 86 | |
| 87 | private static final String TAG = "RollbackManager"; |
| 88 | |
| 89 | // Rollbacks expire after 48 hours. |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 90 | private static final long DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS = |
| 91 | TimeUnit.HOURS.toMillis(48); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 92 | |
| 93 | // Lock used to synchronize accesses to in-memory rollback data |
| 94 | // structures. By convention, methods with the suffix "Locked" require |
| 95 | // mLock is held when they are called. |
| 96 | private final Object mLock = new Object(); |
| 97 | |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 98 | // No need for guarding with lock because value is only accessed in handler thread |
| 99 | // and the value will be written on boot complete. Initialization here happens before |
| 100 | // handler threads are running so that's fine. |
| 101 | private long mRollbackLifetimeDurationInMillis = DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS; |
| 102 | |
shafik | 18b627e | 2019-05-01 20:41:48 +0100 | [diff] [blame] | 103 | private static final long HANDLER_THREAD_TIMEOUT_DURATION_MILLIS = |
| 104 | TimeUnit.MINUTES.toMillis(10); |
| 105 | |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 106 | // Used for generating rollback IDs. |
| 107 | private final Random mRandom = new SecureRandom(); |
| 108 | |
| 109 | // Set of allocated rollback ids |
| 110 | @GuardedBy("mLock") |
| 111 | private final SparseBooleanArray mAllocatedRollbackIds = new SparseBooleanArray(); |
| 112 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 113 | // Package rollback data for rollbacks we are in the process of enabling. |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 114 | @GuardedBy("mLock") |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 115 | private final Set<NewRollback> mNewRollbacks = new ArraySet<>(); |
Richard Uhler | f1910c5 | 2019-01-09 14:27:36 +0000 | [diff] [blame] | 116 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 117 | // The list of all rollbacks, including available and committed rollbacks. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 118 | // This list is null until the rollback data has been loaded. |
| 119 | @GuardedBy("mLock") |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 120 | private List<RollbackData> mRollbacks; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 121 | |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 122 | private final RollbackStore mRollbackStore; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 123 | |
| 124 | private final Context mContext; |
| 125 | private final HandlerThread mHandlerThread; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 126 | private final Installer mInstaller; |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 127 | private final RollbackPackageHealthObserver mPackageHealthObserver; |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 128 | private final AppDataRollbackHelper mAppDataRollbackHelper; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 129 | |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 130 | // This field stores the difference in Millis between the uptime (millis since device |
| 131 | // has booted) and current time (device wall clock) - it's used to update rollback data |
| 132 | // timestamps when the time is changed, by the user or by change of timezone. |
| 133 | // No need for guarding with lock because value is only accessed in handler thread. |
| 134 | private long mRelativeBootTime = calculateRelativeBootTime(); |
| 135 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 136 | RollbackManagerServiceImpl(Context context) { |
| 137 | mContext = context; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 138 | // Note that we're calling onStart here because this object is only constructed on |
| 139 | // SystemService#onStart. |
| 140 | mInstaller = new Installer(mContext); |
| 141 | mInstaller.onStart(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 142 | mHandlerThread = new HandlerThread("RollbackManagerServiceHandler"); |
| 143 | mHandlerThread.start(); |
| 144 | |
shafik | 18b627e | 2019-05-01 20:41:48 +0100 | [diff] [blame] | 145 | // Monitor the handler thread |
| 146 | Watchdog.getInstance().addThread(getHandler(), HANDLER_THREAD_TIMEOUT_DURATION_MILLIS); |
| 147 | |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 148 | mRollbackStore = new RollbackStore(new File(Environment.getDataDirectory(), "rollback")); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 149 | |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 150 | mPackageHealthObserver = new RollbackPackageHealthObserver(mContext); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 151 | mAppDataRollbackHelper = new AppDataRollbackHelper(mInstaller); |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 152 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 153 | // Kick off loading of the rollback data from strorage in a background |
| 154 | // thread. |
| 155 | // TODO: Consider loading the rollback data directly here instead, to |
| 156 | // avoid the need to call ensureRollbackDataLoaded every time before |
| 157 | // accessing the rollback data? |
| 158 | // TODO: Test that this kicks off initial scheduling of rollback |
| 159 | // expiration. |
| 160 | getHandler().post(() -> ensureRollbackDataLoaded()); |
| 161 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 162 | // TODO: Make sure to register these call backs when a new user is |
| 163 | // added too. |
| 164 | SessionCallback sessionCallback = new SessionCallback(); |
| 165 | for (UserInfo userInfo : UserManager.get(mContext).getUsers(true)) { |
| 166 | registerUserCallbacks(userInfo.getUserHandle()); |
| 167 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 168 | |
| 169 | IntentFilter enableRollbackFilter = new IntentFilter(); |
| 170 | enableRollbackFilter.addAction(Intent.ACTION_PACKAGE_ENABLE_ROLLBACK); |
| 171 | try { |
| 172 | enableRollbackFilter.addDataType("application/vnd.android.package-archive"); |
| 173 | } catch (IntentFilter.MalformedMimeTypeException e) { |
| 174 | Log.e(TAG, "addDataType", e); |
| 175 | } |
| 176 | |
| 177 | mContext.registerReceiver(new BroadcastReceiver() { |
| 178 | @Override |
| 179 | public void onReceive(Context context, Intent intent) { |
| 180 | if (Intent.ACTION_PACKAGE_ENABLE_ROLLBACK.equals(intent.getAction())) { |
| 181 | int token = intent.getIntExtra( |
| 182 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_TOKEN, -1); |
| 183 | int installFlags = intent.getIntExtra( |
| 184 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_INSTALL_FLAGS, 0); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 185 | int[] installedUsers = intent.getIntArrayExtra( |
| 186 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_INSTALLED_USERS); |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 187 | int user = intent.getIntExtra( |
| 188 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_USER, 0); |
| 189 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 190 | File newPackageCodePath = new File(intent.getData().getPath()); |
| 191 | |
| 192 | getHandler().post(() -> { |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 193 | boolean success = enableRollback(installFlags, newPackageCodePath, |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 194 | installedUsers, user, token); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 195 | int ret = PackageManagerInternal.ENABLE_ROLLBACK_SUCCEEDED; |
| 196 | if (!success) { |
| 197 | ret = PackageManagerInternal.ENABLE_ROLLBACK_FAILED; |
| 198 | } |
| 199 | |
| 200 | PackageManagerInternal pm = LocalServices.getService( |
| 201 | PackageManagerInternal.class); |
| 202 | pm.setEnableRollbackCode(token, ret); |
| 203 | }); |
| 204 | |
| 205 | // We're handling the ordered broadcast. Abort the |
| 206 | // broadcast because there is no need for it to go to |
| 207 | // anyone else. |
| 208 | abortBroadcast(); |
| 209 | } |
| 210 | } |
| 211 | }, enableRollbackFilter, null, getHandler()); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 212 | |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 213 | IntentFilter enableRollbackTimedOutFilter = new IntentFilter(); |
| 214 | enableRollbackTimedOutFilter.addAction(Intent.ACTION_CANCEL_ENABLE_ROLLBACK); |
| 215 | |
| 216 | mContext.registerReceiver(new BroadcastReceiver() { |
| 217 | @Override |
| 218 | public void onReceive(Context context, Intent intent) { |
| 219 | if (Intent.ACTION_CANCEL_ENABLE_ROLLBACK.equals(intent.getAction())) { |
| 220 | int token = intent.getIntExtra( |
| 221 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_TOKEN, -1); |
| 222 | synchronized (mLock) { |
| 223 | for (NewRollback rollback : mNewRollbacks) { |
| 224 | if (rollback.hasToken(token)) { |
| 225 | rollback.isCancelled = true; |
| 226 | return; |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | } |
| 232 | }, enableRollbackTimedOutFilter, null, getHandler()); |
| 233 | |
shafik | 8aea1ad | 2019-05-21 12:34:50 +0100 | [diff] [blame] | 234 | IntentFilter userAddedIntentFilter = new IntentFilter(Intent.ACTION_USER_ADDED); |
| 235 | mContext.registerReceiver(new BroadcastReceiver() { |
| 236 | @Override |
| 237 | public void onReceive(Context context, Intent intent) { |
| 238 | if (Intent.ACTION_USER_ADDED.equals(intent.getAction())) { |
| 239 | final int newUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1); |
| 240 | if (newUserId == -1) { |
| 241 | return; |
| 242 | } |
| 243 | registerUserCallbacks(UserHandle.of(newUserId)); |
| 244 | } |
| 245 | } |
| 246 | }, userAddedIntentFilter, null, getHandler()); |
| 247 | |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 248 | registerTimeChangeReceiver(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 249 | } |
| 250 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 251 | private void registerUserCallbacks(UserHandle user) { |
| 252 | Context context = getContextAsUser(user); |
| 253 | if (context == null) { |
| 254 | Log.e(TAG, "Unable to register user callbacks for user " + user); |
| 255 | return; |
| 256 | } |
| 257 | |
| 258 | // TODO: Reuse the same SessionCallback and broadcast receiver |
| 259 | // instances, rather than creating new instances for each user. |
| 260 | |
| 261 | context.getPackageManager().getPackageInstaller() |
| 262 | .registerSessionCallback(new SessionCallback(), getHandler()); |
| 263 | |
| 264 | IntentFilter filter = new IntentFilter(); |
| 265 | filter.addAction(Intent.ACTION_PACKAGE_REPLACED); |
| 266 | filter.addAction(Intent.ACTION_PACKAGE_FULLY_REMOVED); |
| 267 | filter.addDataScheme("package"); |
| 268 | context.registerReceiver(new BroadcastReceiver() { |
| 269 | @Override |
| 270 | public void onReceive(Context context, Intent intent) { |
| 271 | String action = intent.getAction(); |
| 272 | if (Intent.ACTION_PACKAGE_REPLACED.equals(action)) { |
| 273 | String packageName = intent.getData().getSchemeSpecificPart(); |
| 274 | onPackageReplaced(packageName); |
| 275 | } |
| 276 | if (Intent.ACTION_PACKAGE_FULLY_REMOVED.equals(action)) { |
| 277 | String packageName = intent.getData().getSchemeSpecificPart(); |
| 278 | onPackageFullyRemoved(packageName); |
| 279 | } |
| 280 | } |
| 281 | }, filter, null, getHandler()); |
| 282 | } |
| 283 | |
shafik | cf968e9 | 2019-05-01 19:00:06 +0100 | [diff] [blame] | 284 | /** |
| 285 | * This method posts a blocking call to the handler thread, so it should not be called from |
| 286 | * that same thread. |
| 287 | * @throws {@link IllegalStateException} if called from {@link #mHandlerThread} |
| 288 | */ |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 289 | @Override |
Richard Uhler | 150ad98 | 2019-01-23 15:16:10 +0000 | [diff] [blame] | 290 | public ParceledListSlice getAvailableRollbacks() { |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 291 | enforceManageRollbacks("getAvailableRollbacks"); |
shafik | cf968e9 | 2019-05-01 19:00:06 +0100 | [diff] [blame] | 292 | if (Thread.currentThread().equals(mHandlerThread)) { |
| 293 | Log.wtf(TAG, "Calling getAvailableRollbacks from mHandlerThread " |
| 294 | + "causes a deadlock"); |
| 295 | throw new IllegalStateException("Cannot call RollbackManager#getAvailableRollbacks " |
| 296 | + "from the handler thread!"); |
| 297 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 298 | |
Richard Uhler | 0741b41 | 2019-03-27 13:27:55 +0000 | [diff] [blame] | 299 | // Wait for the handler thread to get the list of available rollbacks |
| 300 | // to get the most up-to-date results. This is intended to reduce test |
| 301 | // flakiness when checking available rollbacks immediately after |
| 302 | // installing a package with rollback enabled. |
| 303 | final LinkedBlockingQueue<Boolean> result = new LinkedBlockingQueue<>(); |
| 304 | getHandler().post(() -> result.offer(true)); |
| 305 | |
| 306 | try { |
| 307 | result.take(); |
| 308 | } catch (InterruptedException ie) { |
| 309 | // We may not get the most up-to-date information, but whatever we |
| 310 | // can get now is better than nothing, so log but otherwise ignore |
| 311 | // the exception. |
| 312 | Log.w(TAG, "Interrupted while waiting for handler thread in getAvailableRollbacks"); |
| 313 | } |
| 314 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 315 | synchronized (mLock) { |
| 316 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 150ad98 | 2019-01-23 15:16:10 +0000 | [diff] [blame] | 317 | List<RollbackInfo> rollbacks = new ArrayList<>(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 318 | for (int i = 0; i < mRollbacks.size(); ++i) { |
| 319 | RollbackData data = mRollbacks.get(i); |
| 320 | if (data.state == RollbackData.ROLLBACK_STATE_AVAILABLE) { |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 321 | rollbacks.add(data.info); |
Richard Uhler | 60ac706 | 2019-02-05 13:25:39 +0000 | [diff] [blame] | 322 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 323 | } |
Richard Uhler | 150ad98 | 2019-01-23 15:16:10 +0000 | [diff] [blame] | 324 | return new ParceledListSlice<>(rollbacks); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 325 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | @Override |
| 329 | public ParceledListSlice<RollbackInfo> getRecentlyExecutedRollbacks() { |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 330 | enforceManageRollbacks("getRecentlyCommittedRollbacks"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 331 | |
| 332 | synchronized (mLock) { |
| 333 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 334 | List<RollbackInfo> rollbacks = new ArrayList<>(); |
| 335 | for (int i = 0; i < mRollbacks.size(); ++i) { |
| 336 | RollbackData data = mRollbacks.get(i); |
| 337 | if (data.state == RollbackData.ROLLBACK_STATE_COMMITTED) { |
| 338 | rollbacks.add(data.info); |
| 339 | } |
| 340 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 341 | return new ParceledListSlice<>(rollbacks); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | @Override |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 346 | public void commitRollback(int rollbackId, ParceledListSlice causePackages, |
| 347 | String callerPackageName, IntentSender statusReceiver) { |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 348 | enforceManageRollbacks("executeRollback"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 349 | |
| 350 | final int callingUid = Binder.getCallingUid(); |
| 351 | AppOpsManager appOps = mContext.getSystemService(AppOpsManager.class); |
| 352 | appOps.checkPackage(callingUid, callerPackageName); |
| 353 | |
| 354 | getHandler().post(() -> |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 355 | commitRollbackInternal(rollbackId, causePackages.getList(), |
| 356 | callerPackageName, statusReceiver)); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 357 | } |
| 358 | |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 359 | private void registerTimeChangeReceiver() { |
| 360 | final BroadcastReceiver timeChangeIntentReceiver = new BroadcastReceiver() { |
| 361 | @Override |
| 362 | public void onReceive(Context context, Intent intent) { |
| 363 | final long oldRelativeBootTime = mRelativeBootTime; |
| 364 | mRelativeBootTime = calculateRelativeBootTime(); |
| 365 | final long timeDifference = mRelativeBootTime - oldRelativeBootTime; |
| 366 | |
| 367 | synchronized (mLock) { |
| 368 | ensureRollbackDataLoadedLocked(); |
| 369 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 370 | Iterator<RollbackData> iter = mRollbacks.iterator(); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 371 | while (iter.hasNext()) { |
| 372 | RollbackData data = iter.next(); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 373 | data.timestamp = data.timestamp.plusMillis(timeDifference); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 374 | saveRollbackData(data); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 375 | } |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 376 | } |
| 377 | } |
| 378 | }; |
| 379 | final IntentFilter filter = new IntentFilter(); |
| 380 | filter.addAction(Intent.ACTION_TIME_CHANGED); |
| 381 | mContext.registerReceiver(timeChangeIntentReceiver, filter, |
| 382 | null /* broadcastPermission */, getHandler()); |
| 383 | } |
| 384 | |
| 385 | private static long calculateRelativeBootTime() { |
| 386 | return System.currentTimeMillis() - SystemClock.elapsedRealtime(); |
| 387 | } |
| 388 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 389 | /** |
Richard Uhler | e87368e | 2019-01-24 16:34:14 +0000 | [diff] [blame] | 390 | * Performs the actual work to commit a rollback. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 391 | * The work is done on the current thread. This may be a long running |
| 392 | * operation. |
| 393 | */ |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 394 | private void commitRollbackInternal(int rollbackId, List<VersionedPackage> causePackages, |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 395 | String callerPackageName, IntentSender statusReceiver) { |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 396 | Log.i(TAG, "Initiating rollback"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 397 | |
Richard Uhler | e87368e | 2019-01-24 16:34:14 +0000 | [diff] [blame] | 398 | RollbackData data = getRollbackForId(rollbackId); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 399 | if (data == null || data.state != RollbackData.ROLLBACK_STATE_AVAILABLE) { |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 400 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE_ROLLBACK_UNAVAILABLE, |
| 401 | "Rollback unavailable"); |
Narayan Kamath | bc36f8d | 2019-01-23 12:00:08 +0000 | [diff] [blame] | 402 | return; |
| 403 | } |
| 404 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 405 | // Get a context for the caller to use to install the downgraded |
| 406 | // version of the package. |
| 407 | Context context = null; |
| 408 | try { |
| 409 | context = mContext.createPackageContext(callerPackageName, 0); |
| 410 | } catch (PackageManager.NameNotFoundException e) { |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 411 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE, |
| 412 | "Invalid callerPackageName"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 413 | return; |
| 414 | } |
| 415 | |
| 416 | PackageManager pm = context.getPackageManager(); |
| 417 | try { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 418 | PackageInstaller packageInstaller = pm.getPackageInstaller(); |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 419 | PackageInstaller.SessionParams parentParams = new PackageInstaller.SessionParams( |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 420 | PackageInstaller.SessionParams.MODE_FULL_INSTALL); |
Nikita Ioffe | b1d60f1 | 2019-03-06 18:56:49 +0000 | [diff] [blame] | 421 | parentParams.setRequestDowngrade(true); |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 422 | parentParams.setMultiPackage(); |
Richard Uhler | 72fb961 | 2019-02-04 14:37:36 +0000 | [diff] [blame] | 423 | if (data.isStaged()) { |
| 424 | parentParams.setStaged(); |
| 425 | } |
| 426 | |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 427 | int parentSessionId = packageInstaller.createSession(parentParams); |
| 428 | PackageInstaller.Session parentSession = packageInstaller.openSession(parentSessionId); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 429 | |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 430 | for (PackageRollbackInfo info : data.info.getPackages()) { |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 431 | PackageInstaller.SessionParams params = new PackageInstaller.SessionParams( |
| 432 | PackageInstaller.SessionParams.MODE_FULL_INSTALL); |
Richard Uhler | 7a5eeb1 | 2019-02-05 12:51:48 +0000 | [diff] [blame] | 433 | // TODO: We can't get the installerPackageName for apex |
| 434 | // (b/123920130). Is it okay to ignore the installer package |
| 435 | // for apex? |
| 436 | if (!info.isApex()) { |
| 437 | String installerPackageName = pm.getInstallerPackageName(info.getPackageName()); |
Richard Uhler | a7d18bb | 2019-02-06 11:58:17 +0000 | [diff] [blame] | 438 | if (installerPackageName != null) { |
| 439 | params.setInstallerPackageName(installerPackageName); |
Richard Uhler | 7a5eeb1 | 2019-02-05 12:51:48 +0000 | [diff] [blame] | 440 | } |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 441 | } |
Nikita Ioffe | b1d60f1 | 2019-03-06 18:56:49 +0000 | [diff] [blame] | 442 | params.setRequestDowngrade(true); |
Richard Uhler | 2124d4b | 2019-04-25 13:01:39 +0100 | [diff] [blame] | 443 | params.setRequiredInstalledVersionCode( |
| 444 | info.getVersionRolledBackFrom().getLongVersionCode()); |
Richard Uhler | 72fb961 | 2019-02-04 14:37:36 +0000 | [diff] [blame] | 445 | if (data.isStaged()) { |
| 446 | params.setStaged(); |
| 447 | } |
| 448 | if (info.isApex()) { |
| 449 | params.setInstallAsApex(); |
| 450 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 451 | int sessionId = packageInstaller.createSession(params); |
| 452 | PackageInstaller.Session session = packageInstaller.openSession(sessionId); |
| 453 | |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 454 | File[] packageCodePaths = RollbackStore.getPackageCodePaths( |
| 455 | data, info.getPackageName()); |
| 456 | if (packageCodePaths == null) { |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 457 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE, |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 458 | "Backup copy of package inaccessible"); |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 459 | return; |
| 460 | } |
| 461 | |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 462 | for (File packageCodePath : packageCodePaths) { |
| 463 | try (ParcelFileDescriptor fd = ParcelFileDescriptor.open(packageCodePath, |
| 464 | ParcelFileDescriptor.MODE_READ_ONLY)) { |
| 465 | final long token = Binder.clearCallingIdentity(); |
| 466 | try { |
| 467 | session.write(packageCodePath.getName(), 0, packageCodePath.length(), |
| 468 | fd); |
| 469 | } finally { |
| 470 | Binder.restoreCallingIdentity(token); |
| 471 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 472 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 473 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 474 | parentSession.addChildSessionId(sessionId); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 475 | } |
| 476 | |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 477 | final LocalIntentReceiver receiver = new LocalIntentReceiver( |
| 478 | (Intent result) -> { |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 479 | getHandler().post(() -> { |
Narayan Kamath | bc36f8d | 2019-01-23 12:00:08 +0000 | [diff] [blame] | 480 | |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 481 | int status = result.getIntExtra(PackageInstaller.EXTRA_STATUS, |
| 482 | PackageInstaller.STATUS_FAILURE); |
| 483 | if (status != PackageInstaller.STATUS_SUCCESS) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 484 | // Committing the rollback failed, but we |
| 485 | // still have all the info we need to try |
| 486 | // rolling back again, so restore the rollback |
| 487 | // state to how it was before we tried |
| 488 | // committing. |
| 489 | // TODO: Should we just kill this rollback if |
| 490 | // commit failed? Why would we expect commit |
| 491 | // not to fail again? |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 492 | synchronized (mLock) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 493 | // TODO: Could this cause a rollback to be |
| 494 | // resurrected if it should otherwise have |
| 495 | // expired by now? |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 496 | data.state = RollbackData.ROLLBACK_STATE_AVAILABLE; |
| 497 | data.restoreUserDataInProgress = false; |
| 498 | } |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 499 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE_INSTALL, |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 500 | "Rollback downgrade install failed: " |
| 501 | + result.getStringExtra( |
| 502 | PackageInstaller.EXTRA_STATUS_MESSAGE)); |
| 503 | return; |
| 504 | } |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 505 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 506 | synchronized (mLock) { |
| 507 | if (!data.isStaged()) { |
| 508 | // All calls to restoreUserData should have |
| 509 | // completed by now for a non-staged install. |
| 510 | data.restoreUserDataInProgress = false; |
| 511 | } |
| 512 | |
| 513 | data.info.setCommittedSessionId(parentSessionId); |
| 514 | data.info.getCausePackages().addAll(causePackages); |
| 515 | } |
| 516 | mRollbackStore.deletePackageCodePaths(data); |
| 517 | saveRollbackData(data); |
| 518 | |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 519 | sendSuccess(statusReceiver); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 520 | |
Richard Uhler | dca7beb | 2019-01-24 09:56:03 +0000 | [diff] [blame] | 521 | Intent broadcast = new Intent(Intent.ACTION_ROLLBACK_COMMITTED); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 522 | |
shafik | 74fec18 | 2019-03-14 16:29:48 +0000 | [diff] [blame] | 523 | mContext.sendBroadcastAsUser(broadcast, UserHandle.SYSTEM, |
| 524 | Manifest.permission.MANAGE_ROLLBACKS); |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 525 | }); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 526 | } |
| 527 | ); |
| 528 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 529 | synchronized (mLock) { |
| 530 | data.state = RollbackData.ROLLBACK_STATE_COMMITTED; |
| 531 | data.restoreUserDataInProgress = true; |
| 532 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 533 | parentSession.commit(receiver.getIntentSender()); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 534 | } catch (IOException e) { |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 535 | Log.e(TAG, "Rollback failed", e); |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 536 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE, |
| 537 | "IOException: " + e.toString()); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 538 | return; |
| 539 | } |
| 540 | } |
| 541 | |
| 542 | @Override |
| 543 | public void reloadPersistedData() { |
| 544 | mContext.enforceCallingOrSelfPermission( |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 545 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 546 | "reloadPersistedData"); |
| 547 | |
| 548 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 549 | mRollbacks = null; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 550 | } |
shafik | 6d61f5e | 2019-02-26 09:33:26 +0000 | [diff] [blame] | 551 | getHandler().post(() -> { |
| 552 | updateRollbackLifetimeDurationInMillis(); |
| 553 | ensureRollbackDataLoaded(); |
| 554 | }); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 555 | } |
| 556 | |
| 557 | @Override |
| 558 | public void expireRollbackForPackage(String packageName) { |
| 559 | mContext.enforceCallingOrSelfPermission( |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 560 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 561 | "expireRollbackForPackage"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 562 | synchronized (mLock) { |
| 563 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 564 | Iterator<RollbackData> iter = mRollbacks.iterator(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 565 | while (iter.hasNext()) { |
Richard Uhler | 32f63a7 | 2019-01-09 10:43:52 +0000 | [diff] [blame] | 566 | RollbackData data = iter.next(); |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 567 | for (PackageRollbackInfo info : data.info.getPackages()) { |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 568 | if (info.getPackageName().equals(packageName)) { |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 569 | iter.remove(); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 570 | deleteRollback(data); |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 571 | break; |
| 572 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 573 | } |
| 574 | } |
| 575 | } |
| 576 | } |
| 577 | |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 578 | void onUnlockUser(int userId) { |
| 579 | getHandler().post(() -> { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 580 | final List<RollbackData> rollbacks; |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 581 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 582 | rollbacks = new ArrayList<>(mRollbacks); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 583 | } |
| 584 | |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 585 | final Set<RollbackData> changed = |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 586 | mAppDataRollbackHelper.commitPendingBackupAndRestoreForUser(userId, rollbacks); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 587 | |
| 588 | for (RollbackData rd : changed) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 589 | saveRollbackData(rd); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 590 | } |
| 591 | }); |
| 592 | } |
| 593 | |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 594 | private void updateRollbackLifetimeDurationInMillis() { |
Stanislav Zholnin | 6b85dac | 2019-03-07 12:16:04 +0000 | [diff] [blame] | 595 | mRollbackLifetimeDurationInMillis = DeviceConfig.getLong( |
Matt Pape | 12187ae | 2019-03-14 13:37:32 -0700 | [diff] [blame] | 596 | DeviceConfig.NAMESPACE_ROLLBACK_BOOT, |
| 597 | RollbackManager.PROPERTY_ROLLBACK_LIFETIME_MILLIS, |
Stanislav Zholnin | 6b85dac | 2019-03-07 12:16:04 +0000 | [diff] [blame] | 598 | DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS); |
shafik | 15c511f | 2019-03-08 11:52:08 +0000 | [diff] [blame] | 599 | if (mRollbackLifetimeDurationInMillis < 0) { |
| 600 | mRollbackLifetimeDurationInMillis = DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS; |
| 601 | } |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 602 | } |
| 603 | |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 604 | void onBootCompleted() { |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 605 | getHandler().post(() -> updateRollbackLifetimeDurationInMillis()); |
| 606 | // Also posts to handler thread |
| 607 | scheduleExpiration(0); |
| 608 | |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 609 | getHandler().post(() -> { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 610 | // Check to see if any rollback-enabled staged sessions or staged |
| 611 | // rollback sessions been applied. |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 612 | List<RollbackData> enabling = new ArrayList<>(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 613 | List<RollbackData> restoreInProgress = new ArrayList<>(); |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 614 | Set<String> apexPackageNames = new HashSet<>(); |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 615 | synchronized (mLock) { |
| 616 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 617 | for (RollbackData data : mRollbacks) { |
| 618 | if (data.isStaged()) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 619 | if (data.state == RollbackData.ROLLBACK_STATE_ENABLING) { |
| 620 | enabling.add(data); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 621 | } else if (data.restoreUserDataInProgress) { |
| 622 | restoreInProgress.add(data); |
| 623 | } |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 624 | |
| 625 | for (PackageRollbackInfo info : data.info.getPackages()) { |
| 626 | if (info.isApex()) { |
| 627 | apexPackageNames.add(info.getPackageName()); |
| 628 | } |
| 629 | } |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 630 | } |
| 631 | } |
| 632 | } |
| 633 | |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 634 | for (RollbackData data : enabling) { |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 635 | PackageInstaller installer = mContext.getPackageManager().getPackageInstaller(); |
| 636 | PackageInstaller.SessionInfo session = installer.getSessionInfo( |
| 637 | data.stagedSessionId); |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 638 | // TODO: What if session is null? |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 639 | if (session != null) { |
Dario Freni | 60a96c1 | 2019-02-24 21:01:29 +0000 | [diff] [blame] | 640 | if (session.isStagedSessionApplied()) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 641 | makeRollbackAvailable(data); |
Dario Freni | 60a96c1 | 2019-02-24 21:01:29 +0000 | [diff] [blame] | 642 | } else if (session.isStagedSessionFailed()) { |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 643 | // TODO: Do we need to remove this from |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 644 | // mRollbacks, or is it okay to leave as |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 645 | // unavailable until the next reboot when it will go |
| 646 | // away on its own? |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 647 | deleteRollback(data); |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 648 | } |
| 649 | } |
| 650 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 651 | |
| 652 | for (RollbackData data : restoreInProgress) { |
| 653 | PackageInstaller installer = mContext.getPackageManager().getPackageInstaller(); |
| 654 | PackageInstaller.SessionInfo session = installer.getSessionInfo( |
| 655 | data.stagedSessionId); |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 656 | // TODO: What if session is null? |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 657 | if (session != null) { |
| 658 | if (session.isStagedSessionApplied() || session.isStagedSessionFailed()) { |
| 659 | synchronized (mLock) { |
| 660 | data.restoreUserDataInProgress = false; |
| 661 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 662 | saveRollbackData(data); |
| 663 | } |
| 664 | } |
| 665 | } |
Zimuzo | 841c494 | 2019-03-04 12:31:48 +0000 | [diff] [blame] | 666 | |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 667 | for (String apexPackageName : apexPackageNames) { |
| 668 | // We will not recieve notifications when an apex is updated, |
| 669 | // so check now in case any rollbacks ought to be expired. The |
| 670 | // onPackagedReplace function is safe to call if the package |
| 671 | // hasn't actually been updated. |
| 672 | onPackageReplaced(apexPackageName); |
| 673 | } |
shafik | c5805fb9 | 2019-04-29 20:08:07 +0100 | [diff] [blame] | 674 | mPackageHealthObserver.onBootCompletedAsync(); |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 675 | }); |
| 676 | } |
| 677 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 678 | /** |
| 679 | * Load rollback data from storage if it has not already been loaded. |
| 680 | * After calling this funciton, mAvailableRollbacks and |
| 681 | * mRecentlyExecutedRollbacks will be non-null. |
| 682 | */ |
| 683 | private void ensureRollbackDataLoaded() { |
| 684 | synchronized (mLock) { |
| 685 | ensureRollbackDataLoadedLocked(); |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | /** |
| 690 | * Load rollback data from storage if it has not already been loaded. |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 691 | * After calling this function, mRollbacks will be non-null. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 692 | */ |
| 693 | @GuardedBy("mLock") |
| 694 | private void ensureRollbackDataLoadedLocked() { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 695 | if (mRollbacks == null) { |
Richard Uhler | b7e2d92 | 2019-01-21 14:34:50 +0000 | [diff] [blame] | 696 | loadAllRollbackDataLocked(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 697 | } |
| 698 | } |
| 699 | |
| 700 | /** |
Richard Uhler | b7e2d92 | 2019-01-21 14:34:50 +0000 | [diff] [blame] | 701 | * Load all rollback data from storage. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 702 | * Note: We do potentially heavy IO here while holding mLock, because we |
| 703 | * have to have the rollback data loaded before we can do anything else |
| 704 | * meaningful. |
| 705 | */ |
| 706 | @GuardedBy("mLock") |
Richard Uhler | b7e2d92 | 2019-01-21 14:34:50 +0000 | [diff] [blame] | 707 | private void loadAllRollbackDataLocked() { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 708 | mRollbacks = mRollbackStore.loadAllRollbackData(); |
| 709 | for (RollbackData data : mRollbacks) { |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 710 | mAllocatedRollbackIds.put(data.info.getRollbackId(), true); |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 711 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 712 | } |
| 713 | |
| 714 | /** |
| 715 | * Called when a package has been replaced with a different version. |
| 716 | * Removes all backups for the package not matching the currently |
| 717 | * installed package version. |
| 718 | */ |
| 719 | private void onPackageReplaced(String packageName) { |
| 720 | // TODO: Could this end up incorrectly deleting a rollback for a |
| 721 | // package that is about to be installed? |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 722 | VersionedPackage installedVersion = getInstalledPackageVersion(packageName); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 723 | |
| 724 | synchronized (mLock) { |
| 725 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 726 | Iterator<RollbackData> iter = mRollbacks.iterator(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 727 | while (iter.hasNext()) { |
Richard Uhler | 32f63a7 | 2019-01-09 10:43:52 +0000 | [diff] [blame] | 728 | RollbackData data = iter.next(); |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 729 | // TODO: Should we remove rollbacks in the ENABLING state here? |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 730 | if (data.state == RollbackData.ROLLBACK_STATE_AVAILABLE |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 731 | || data.state == RollbackData.ROLLBACK_STATE_ENABLING) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 732 | for (PackageRollbackInfo info : data.info.getPackages()) { |
| 733 | if (info.getPackageName().equals(packageName) |
| 734 | && !packageVersionsEqual( |
| 735 | info.getVersionRolledBackFrom(), |
| 736 | installedVersion)) { |
| 737 | iter.remove(); |
| 738 | deleteRollback(data); |
| 739 | break; |
| 740 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 741 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 742 | } |
| 743 | } |
| 744 | } |
| 745 | } |
| 746 | |
| 747 | /** |
| 748 | * Called when a package has been completely removed from the device. |
| 749 | * Removes all backups and rollback history for the given package. |
| 750 | */ |
| 751 | private void onPackageFullyRemoved(String packageName) { |
| 752 | expireRollbackForPackage(packageName); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 753 | } |
| 754 | |
| 755 | /** |
| 756 | * Notifies an IntentSender of failure. |
| 757 | * |
| 758 | * @param statusReceiver where to send the failure |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 759 | * @param status the RollbackManager.STATUS_* code with the failure. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 760 | * @param message the failure message. |
| 761 | */ |
Richard Uhler | a4b7030 | 2019-03-11 14:34:33 +0000 | [diff] [blame] | 762 | private void sendFailure(IntentSender statusReceiver, @RollbackManager.Status int status, |
| 763 | String message) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 764 | Log.e(TAG, message); |
| 765 | try { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 766 | final Intent fillIn = new Intent(); |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 767 | fillIn.putExtra(RollbackManager.EXTRA_STATUS, status); |
| 768 | fillIn.putExtra(RollbackManager.EXTRA_STATUS_MESSAGE, message); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 769 | statusReceiver.sendIntent(mContext, 0, fillIn, null, null); |
| 770 | } catch (IntentSender.SendIntentException e) { |
| 771 | // Nowhere to send the result back to, so don't bother. |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | /** |
| 776 | * Notifies an IntentSender of success. |
| 777 | */ |
| 778 | private void sendSuccess(IntentSender statusReceiver) { |
| 779 | try { |
| 780 | final Intent fillIn = new Intent(); |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 781 | fillIn.putExtra(RollbackManager.EXTRA_STATUS, RollbackManager.STATUS_SUCCESS); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 782 | statusReceiver.sendIntent(mContext, 0, fillIn, null, null); |
| 783 | } catch (IntentSender.SendIntentException e) { |
| 784 | // Nowhere to send the result back to, so don't bother. |
| 785 | } |
| 786 | } |
| 787 | |
| 788 | // Check to see if anything needs expiration, and if so, expire it. |
| 789 | // Schedules future expiration as appropriate. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 790 | private void runExpiration() { |
| 791 | Instant now = Instant.now(); |
| 792 | Instant oldest = null; |
| 793 | synchronized (mLock) { |
| 794 | ensureRollbackDataLoadedLocked(); |
| 795 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 796 | Iterator<RollbackData> iter = mRollbacks.iterator(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 797 | while (iter.hasNext()) { |
Richard Uhler | 32f63a7 | 2019-01-09 10:43:52 +0000 | [diff] [blame] | 798 | RollbackData data = iter.next(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 799 | if (data.state != RollbackData.ROLLBACK_STATE_AVAILABLE) { |
Richard Uhler | 60ac706 | 2019-02-05 13:25:39 +0000 | [diff] [blame] | 800 | continue; |
| 801 | } |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 802 | if (!now.isBefore(data.timestamp.plusMillis(mRollbackLifetimeDurationInMillis))) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 803 | iter.remove(); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 804 | deleteRollback(data); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 805 | } else if (oldest == null || oldest.isAfter(data.timestamp)) { |
| 806 | oldest = data.timestamp; |
| 807 | } |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | if (oldest != null) { |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 812 | scheduleExpiration(now.until(oldest.plusMillis(mRollbackLifetimeDurationInMillis), |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 813 | ChronoUnit.MILLIS)); |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | /** |
| 818 | * Schedules an expiration check to be run after the given duration in |
| 819 | * milliseconds has gone by. |
| 820 | */ |
| 821 | private void scheduleExpiration(long duration) { |
| 822 | getHandler().postDelayed(() -> runExpiration(), duration); |
| 823 | } |
| 824 | |
| 825 | private Handler getHandler() { |
| 826 | return mHandlerThread.getThreadHandler(); |
| 827 | } |
| 828 | |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 829 | // Returns true if <code>session</code> has installFlags and code path |
| 830 | // matching the installFlags and new package code path given to |
| 831 | // enableRollback. |
| 832 | private boolean sessionMatchesForEnableRollback(PackageInstaller.SessionInfo session, |
| 833 | int installFlags, File newPackageCodePath) { |
| 834 | if (session == null || session.resolvedBaseCodePath == null) { |
| 835 | return false; |
| 836 | } |
| 837 | |
| 838 | File packageCodePath = new File(session.resolvedBaseCodePath).getParentFile(); |
| 839 | if (newPackageCodePath.equals(packageCodePath) && installFlags == session.installFlags) { |
| 840 | return true; |
| 841 | } |
| 842 | |
| 843 | return false; |
| 844 | } |
| 845 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 846 | private Context getContextAsUser(UserHandle user) { |
| 847 | try { |
| 848 | return mContext.createPackageContextAsUser(mContext.getPackageName(), 0, user); |
| 849 | } catch (PackageManager.NameNotFoundException e) { |
| 850 | return null; |
| 851 | } |
| 852 | } |
| 853 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 854 | /** |
| 855 | * Called via broadcast by the package manager when a package is being |
| 856 | * staged for install with rollback enabled. Called before the package has |
| 857 | * been installed. |
| 858 | * |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 859 | * @param installFlags information about what is being installed. |
| 860 | * @param newPackageCodePath path to the package about to be installed. |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 861 | * @param installedUsers the set of users for which a given package is installed. |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 862 | * @param user the user that owns the install session to enable rollback on. |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 863 | * @param token the distinct rollback token sent by package manager. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 864 | * @return true if enabling the rollback succeeds, false otherwise. |
| 865 | */ |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 866 | private boolean enableRollback(int installFlags, File newPackageCodePath, |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 867 | int[] installedUsers, @UserIdInt int user, int token) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 868 | |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 869 | // Find the session id associated with this install. |
| 870 | // TODO: It would be nice if package manager or package installer told |
| 871 | // us the session directly, rather than have to search for it |
| 872 | // ourselves. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 873 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 874 | // getAllSessions only returns sessions for the associated user. |
| 875 | // Create a context with the right user so we can find the matching |
| 876 | // session. |
| 877 | final Context context = getContextAsUser(UserHandle.of(user)); |
| 878 | if (context == null) { |
| 879 | Log.e(TAG, "Unable to create context for install session user."); |
| 880 | return false; |
| 881 | } |
| 882 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 883 | PackageInstaller.SessionInfo parentSession = null; |
| 884 | PackageInstaller.SessionInfo packageSession = null; |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 885 | PackageInstaller installer = context.getPackageManager().getPackageInstaller(); |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 886 | for (PackageInstaller.SessionInfo info : installer.getAllSessions()) { |
Richard Uhler | f1910c5 | 2019-01-09 14:27:36 +0000 | [diff] [blame] | 887 | if (info.isMultiPackage()) { |
| 888 | for (int childId : info.getChildSessionIds()) { |
| 889 | PackageInstaller.SessionInfo child = installer.getSessionInfo(childId); |
| 890 | if (sessionMatchesForEnableRollback(child, installFlags, newPackageCodePath)) { |
| 891 | // TODO: Check we only have one matching session? |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 892 | parentSession = info; |
| 893 | packageSession = child; |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 894 | break; |
Richard Uhler | f1910c5 | 2019-01-09 14:27:36 +0000 | [diff] [blame] | 895 | } |
| 896 | } |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 897 | } else if (sessionMatchesForEnableRollback(info, installFlags, newPackageCodePath)) { |
| 898 | // TODO: Check we only have one matching session? |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 899 | parentSession = info; |
| 900 | packageSession = info; |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 901 | break; |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 902 | } |
| 903 | } |
| 904 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 905 | if (parentSession == null || packageSession == null) { |
| 906 | Log.e(TAG, "Unable to find session for enabled rollback."); |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 907 | return false; |
| 908 | } |
| 909 | |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 910 | // Check to see if this is the apk session for a staged session with |
| 911 | // rollback enabled. |
| 912 | // TODO: This check could be made more efficient. |
| 913 | RollbackData rd = null; |
| 914 | synchronized (mLock) { |
| 915 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 916 | for (int i = 0; i < mRollbacks.size(); ++i) { |
| 917 | RollbackData data = mRollbacks.get(i); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 918 | if (data.apkSessionId == parentSession.getSessionId()) { |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 919 | rd = data; |
| 920 | break; |
| 921 | } |
| 922 | } |
| 923 | } |
| 924 | |
| 925 | if (rd != null) { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 926 | // This is the apk session for a staged session. We do not need to create a new rollback |
| 927 | // for this session. |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 928 | PackageParser.PackageLite newPackage = null; |
| 929 | try { |
| 930 | newPackage = PackageParser.parsePackageLite( |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 931 | new File(packageSession.resolvedBaseCodePath), 0); |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 932 | } catch (PackageParser.PackageParserException e) { |
| 933 | Log.e(TAG, "Unable to parse new package", e); |
| 934 | return false; |
| 935 | } |
| 936 | String packageName = newPackage.packageName; |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 937 | for (PackageRollbackInfo info : rd.info.getPackages()) { |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 938 | if (info.getPackageName().equals(packageName)) { |
Richard Uhler | 2a5facc | 2019-02-18 11:33:03 +0000 | [diff] [blame] | 939 | info.getInstalledUsers().addAll(IntArray.wrap(installedUsers)); |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 940 | return true; |
| 941 | } |
| 942 | } |
| 943 | Log.e(TAG, "Unable to find package in apk session"); |
| 944 | return false; |
| 945 | } |
| 946 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 947 | NewRollback newRollback; |
| 948 | synchronized (mLock) { |
| 949 | // See if we already have a NewRollback that contains this package |
| 950 | // session. If not, create a NewRollback for the parent session |
| 951 | // that we will use for all the packages in the session. |
| 952 | newRollback = getNewRollbackForPackageSessionLocked(packageSession.getSessionId()); |
| 953 | if (newRollback == null) { |
| 954 | newRollback = createNewRollbackLocked(parentSession); |
| 955 | mNewRollbacks.add(newRollback); |
| 956 | } |
| 957 | } |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 958 | newRollback.addToken(token); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 959 | |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 960 | return enableRollbackForPackageSession(newRollback.data, packageSession, installedUsers); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 961 | } |
| 962 | |
| 963 | /** |
| 964 | * Do code and userdata backups to enable rollback of the given session. |
| 965 | * In case of multiPackage sessions, <code>session</code> should be one of |
| 966 | * the child sessions, not the parent session. |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 967 | * |
| 968 | * @return true on success, false on failure. |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 969 | */ |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 970 | private boolean enableRollbackForPackageSession(RollbackData data, |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 971 | PackageInstaller.SessionInfo session, @NonNull int[] installedUsers) { |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 972 | // TODO: Don't attempt to enable rollback for split installs. |
| 973 | final int installFlags = session.installFlags; |
| 974 | if ((installFlags & PackageManager.INSTALL_ENABLE_ROLLBACK) == 0) { |
| 975 | Log.e(TAG, "Rollback is not enabled."); |
| 976 | return false; |
| 977 | } |
| 978 | if ((installFlags & PackageManager.INSTALL_INSTANT_APP) != 0) { |
| 979 | Log.e(TAG, "Rollbacks not supported for instant app install"); |
| 980 | return false; |
| 981 | } |
| 982 | |
Richard Uhler | fcad49a | 2019-03-13 10:18:46 +0000 | [diff] [blame] | 983 | if (session.resolvedBaseCodePath == null) { |
| 984 | Log.e(TAG, "Session code path has not been resolved."); |
| 985 | return false; |
| 986 | } |
| 987 | |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 988 | // Get information about the package to be installed. |
| 989 | PackageParser.PackageLite newPackage = null; |
| 990 | try { |
| 991 | newPackage = PackageParser.parsePackageLite(new File(session.resolvedBaseCodePath), 0); |
| 992 | } catch (PackageParser.PackageParserException e) { |
| 993 | Log.e(TAG, "Unable to parse new package", e); |
| 994 | return false; |
| 995 | } |
| 996 | |
| 997 | String packageName = newPackage.packageName; |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 998 | Log.i(TAG, "Enabling rollback for install of " + packageName |
| 999 | + ", session:" + session.sessionId); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 1000 | |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 1001 | String installerPackageName = session.getInstallerPackageName(); |
| 1002 | if (!enableRollbackAllowed(installerPackageName, packageName)) { |
| 1003 | Log.e(TAG, "Installer " + installerPackageName |
| 1004 | + " is not allowed to enable rollback on " + packageName); |
| 1005 | return false; |
| 1006 | } |
| 1007 | |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1008 | VersionedPackage newVersion = new VersionedPackage(packageName, newPackage.versionCode); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1009 | final boolean isApex = ((installFlags & PackageManager.INSTALL_APEX) != 0); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1010 | |
| 1011 | // Get information about the currently installed package. |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 1012 | PackageManager pm = mContext.getPackageManager(); |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 1013 | final PackageInfo pkgInfo; |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 1014 | try { |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 1015 | pkgInfo = getPackageInfo(packageName); |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 1016 | } catch (PackageManager.NameNotFoundException e) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1017 | // TODO: Support rolling back fresh package installs rather than |
| 1018 | // fail here. Test this case. |
| 1019 | Log.e(TAG, packageName + " is not installed"); |
| 1020 | return false; |
| 1021 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1022 | |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 1023 | VersionedPackage installedVersion = new VersionedPackage(packageName, |
| 1024 | pkgInfo.getLongVersionCode()); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 1025 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1026 | PackageRollbackInfo packageRollbackInfo = new PackageRollbackInfo( |
| 1027 | newVersion, installedVersion, |
Nikita Ioffe | 5dcd1797 | 2019-02-04 11:08:13 +0000 | [diff] [blame] | 1028 | new IntArray() /* pendingBackups */, new ArrayList<>() /* pendingRestores */, |
| 1029 | isApex, IntArray.wrap(installedUsers), |
| 1030 | new SparseLongArray() /* ceSnapshotInodes */); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1031 | |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 1032 | try { |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 1033 | ApplicationInfo appInfo = pkgInfo.applicationInfo; |
| 1034 | RollbackStore.backupPackageCodePath(data, packageName, appInfo.sourceDir); |
| 1035 | if (!ArrayUtils.isEmpty(appInfo.splitSourceDirs)) { |
| 1036 | for (String sourceDir : appInfo.splitSourceDirs) { |
| 1037 | RollbackStore.backupPackageCodePath(data, packageName, sourceDir); |
| 1038 | } |
| 1039 | } |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 1040 | } catch (IOException e) { |
| 1041 | Log.e(TAG, "Unable to copy package for rollback for " + packageName, e); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1042 | return false; |
| 1043 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1044 | |
| 1045 | synchronized (mLock) { |
| 1046 | data.info.getPackages().add(packageRollbackInfo); |
| 1047 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1048 | return true; |
| 1049 | } |
| 1050 | |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 1051 | @Override |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1052 | public void snapshotAndRestoreUserData(String packageName, int[] userIds, int appId, |
| 1053 | long ceDataInode, String seInfo, int token) { |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 1054 | if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1055 | throw new SecurityException( |
| 1056 | "snapshotAndRestoreUserData may only be called by the system."); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 1057 | } |
| 1058 | |
| 1059 | getHandler().post(() -> { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1060 | snapshotUserDataInternal(packageName); |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1061 | restoreUserDataInternal(packageName, userIds, appId, ceDataInode, seInfo, token); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1062 | final PackageManagerInternal pmi = LocalServices.getService( |
| 1063 | PackageManagerInternal.class); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 1064 | pmi.finishPackageInstall(token, false); |
| 1065 | }); |
| 1066 | } |
| 1067 | |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1068 | private void snapshotUserDataInternal(String packageName) { |
| 1069 | synchronized (mLock) { |
| 1070 | // staged installs |
| 1071 | ensureRollbackDataLoadedLocked(); |
| 1072 | for (int i = 0; i < mRollbacks.size(); i++) { |
| 1073 | RollbackData data = mRollbacks.get(i); |
| 1074 | if (data.state != RollbackData.ROLLBACK_STATE_ENABLING) { |
| 1075 | continue; |
| 1076 | } |
| 1077 | |
| 1078 | for (PackageRollbackInfo info : data.info.getPackages()) { |
| 1079 | if (info.getPackageName().equals(packageName)) { |
| 1080 | mAppDataRollbackHelper.snapshotAppData(data.info.getRollbackId(), info); |
| 1081 | saveRollbackData(data); |
Gavin Corkery | 237dd81 | 2019-06-04 22:53:15 +0100 | [diff] [blame] | 1082 | break; |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1083 | } |
| 1084 | } |
| 1085 | } |
| 1086 | // non-staged installs |
| 1087 | PackageRollbackInfo info; |
| 1088 | for (NewRollback rollback : mNewRollbacks) { |
| 1089 | info = getPackageRollbackInfo(rollback.data, packageName); |
| 1090 | if (info != null) { |
| 1091 | mAppDataRollbackHelper.snapshotAppData(rollback.data.info.getRollbackId(), |
| 1092 | info); |
| 1093 | saveRollbackData(rollback.data); |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1094 | } |
| 1095 | } |
| 1096 | } |
| 1097 | } |
| 1098 | |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1099 | private void restoreUserDataInternal(String packageName, int[] userIds, int appId, |
| 1100 | long ceDataInode, String seInfo, int token) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1101 | PackageRollbackInfo info = null; |
| 1102 | RollbackData rollbackData = null; |
| 1103 | synchronized (mLock) { |
| 1104 | ensureRollbackDataLoadedLocked(); |
| 1105 | for (int i = 0; i < mRollbacks.size(); ++i) { |
| 1106 | RollbackData data = mRollbacks.get(i); |
| 1107 | if (data.restoreUserDataInProgress) { |
| 1108 | info = getPackageRollbackInfo(data, packageName); |
| 1109 | if (info != null) { |
| 1110 | rollbackData = data; |
| 1111 | break; |
| 1112 | } |
| 1113 | } |
| 1114 | } |
| 1115 | } |
| 1116 | |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1117 | if (rollbackData == null) { |
| 1118 | return; |
| 1119 | } |
| 1120 | |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1121 | for (int userId : userIds) { |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1122 | final boolean changedRollbackData = mAppDataRollbackHelper.restoreAppData( |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 1123 | rollbackData.info.getRollbackId(), info, userId, appId, seInfo); |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1124 | |
| 1125 | // We've updated metadata about this rollback, so save it to flash. |
| 1126 | if (changedRollbackData) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1127 | saveRollbackData(rollbackData); |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1128 | } |
| 1129 | } |
| 1130 | } |
| 1131 | |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1132 | @Override |
| 1133 | public boolean notifyStagedSession(int sessionId) { |
shafik | 3be41a9 | 2019-03-25 14:10:32 +0000 | [diff] [blame] | 1134 | if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
| 1135 | throw new SecurityException("notifyStagedSession may only be called by the system."); |
| 1136 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1137 | final LinkedBlockingQueue<Boolean> result = new LinkedBlockingQueue<>(); |
| 1138 | |
| 1139 | // NOTE: We post this runnable on the RollbackManager's binder thread because we'd prefer |
| 1140 | // to preserve the invariant that all operations that modify state happen there. |
| 1141 | getHandler().post(() -> { |
| 1142 | PackageInstaller installer = mContext.getPackageManager().getPackageInstaller(); |
| 1143 | |
| 1144 | final PackageInstaller.SessionInfo session = installer.getSessionInfo(sessionId); |
| 1145 | if (session == null) { |
| 1146 | Log.e(TAG, "No matching install session for: " + sessionId); |
| 1147 | result.offer(false); |
| 1148 | return; |
| 1149 | } |
| 1150 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1151 | NewRollback newRollback; |
| 1152 | synchronized (mLock) { |
| 1153 | newRollback = createNewRollbackLocked(session); |
| 1154 | } |
| 1155 | |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1156 | if (!session.isMultiPackage()) { |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1157 | if (!enableRollbackForPackageSession(newRollback.data, session, |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1158 | new int[0])) { |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1159 | Log.e(TAG, "Unable to enable rollback for session: " + sessionId); |
| 1160 | result.offer(false); |
| 1161 | return; |
| 1162 | } |
| 1163 | } else { |
| 1164 | for (int childSessionId : session.getChildSessionIds()) { |
| 1165 | final PackageInstaller.SessionInfo childSession = |
| 1166 | installer.getSessionInfo(childSessionId); |
| 1167 | if (childSession == null) { |
| 1168 | Log.e(TAG, "No matching child install session for: " + childSessionId); |
| 1169 | result.offer(false); |
| 1170 | return; |
| 1171 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1172 | if (!enableRollbackForPackageSession(newRollback.data, childSession, |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1173 | new int[0])) { |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1174 | Log.e(TAG, "Unable to enable rollback for session: " + sessionId); |
| 1175 | result.offer(false); |
| 1176 | return; |
| 1177 | } |
| 1178 | } |
| 1179 | } |
| 1180 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1181 | result.offer(completeEnableRollback(newRollback, true) != null); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1182 | }); |
| 1183 | |
| 1184 | try { |
| 1185 | return result.take(); |
| 1186 | } catch (InterruptedException ie) { |
| 1187 | Log.e(TAG, "Interrupted while waiting for notifyStagedSession response"); |
| 1188 | return false; |
| 1189 | } |
| 1190 | } |
| 1191 | |
Richard Uhler | 6fa7d13 | 2019-02-05 13:55:11 +0000 | [diff] [blame] | 1192 | @Override |
| 1193 | public void notifyStagedApkSession(int originalSessionId, int apkSessionId) { |
shafik | 3be41a9 | 2019-03-25 14:10:32 +0000 | [diff] [blame] | 1194 | if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
| 1195 | throw new SecurityException("notifyStagedApkSession may only be called by the system."); |
| 1196 | } |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1197 | getHandler().post(() -> { |
| 1198 | RollbackData rd = null; |
| 1199 | synchronized (mLock) { |
| 1200 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1201 | for (int i = 0; i < mRollbacks.size(); ++i) { |
| 1202 | RollbackData data = mRollbacks.get(i); |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1203 | if (data.stagedSessionId == originalSessionId) { |
| 1204 | data.apkSessionId = apkSessionId; |
| 1205 | rd = data; |
| 1206 | break; |
| 1207 | } |
| 1208 | } |
| 1209 | } |
| 1210 | |
| 1211 | if (rd != null) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1212 | saveRollbackData(rd); |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1213 | } |
| 1214 | }); |
Richard Uhler | 6fa7d13 | 2019-02-05 13:55:11 +0000 | [diff] [blame] | 1215 | } |
| 1216 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1217 | /** |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 1218 | * Returns true if the installer is allowed to enable rollback for the |
| 1219 | * given named package, false otherwise. |
| 1220 | */ |
| 1221 | private boolean enableRollbackAllowed(String installerPackageName, String packageName) { |
| 1222 | if (installerPackageName == null) { |
| 1223 | return false; |
| 1224 | } |
| 1225 | |
| 1226 | PackageManager pm = mContext.getPackageManager(); |
| 1227 | boolean manageRollbacksGranted = pm.checkPermission( |
| 1228 | Manifest.permission.MANAGE_ROLLBACKS, |
| 1229 | installerPackageName) == PackageManager.PERMISSION_GRANTED; |
| 1230 | |
| 1231 | boolean testManageRollbacksGranted = pm.checkPermission( |
| 1232 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
| 1233 | installerPackageName) == PackageManager.PERMISSION_GRANTED; |
| 1234 | |
| 1235 | // For now only allow rollbacks for modules or for testing. |
| 1236 | return (isModule(packageName) && manageRollbacksGranted) |
| 1237 | || testManageRollbacksGranted; |
| 1238 | } |
| 1239 | |
| 1240 | /** |
| 1241 | * Returns true if the package name is the name of a module. |
| 1242 | */ |
| 1243 | private boolean isModule(String packageName) { |
| 1244 | PackageManager pm = mContext.getPackageManager(); |
| 1245 | final ModuleInfo moduleInfo; |
| 1246 | try { |
| 1247 | moduleInfo = pm.getModuleInfo(packageName, 0); |
| 1248 | } catch (PackageManager.NameNotFoundException e) { |
| 1249 | return false; |
| 1250 | } |
| 1251 | |
| 1252 | return moduleInfo != null; |
| 1253 | } |
| 1254 | |
| 1255 | /** |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1256 | * Gets the version of the package currently installed. |
| 1257 | * Returns null if the package is not currently installed. |
| 1258 | */ |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1259 | private VersionedPackage getInstalledPackageVersion(String packageName) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1260 | PackageManager pm = mContext.getPackageManager(); |
| 1261 | PackageInfo pkgInfo = null; |
| 1262 | try { |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 1263 | pkgInfo = getPackageInfo(packageName); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1264 | } catch (PackageManager.NameNotFoundException e) { |
| 1265 | return null; |
| 1266 | } |
| 1267 | |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1268 | return new VersionedPackage(packageName, pkgInfo.getLongVersionCode()); |
| 1269 | } |
| 1270 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 1271 | /** |
| 1272 | * Gets PackageInfo for the given package. |
| 1273 | * Matches any user and apex. Returns null if no such package is |
| 1274 | * installed. |
| 1275 | */ |
| 1276 | private PackageInfo getPackageInfo(String packageName) |
| 1277 | throws PackageManager.NameNotFoundException { |
| 1278 | PackageManager pm = mContext.getPackageManager(); |
| 1279 | try { |
| 1280 | // The MATCH_ANY_USER flag doesn't mix well with the MATCH_APEX |
| 1281 | // flag, so make two separate attempts to get the package info. |
| 1282 | // We don't need both flags at the same time because we assume |
| 1283 | // apex files are always installed for all users. |
| 1284 | return pm.getPackageInfo(packageName, PackageManager.MATCH_ANY_USER); |
| 1285 | } catch (PackageManager.NameNotFoundException e) { |
| 1286 | return pm.getPackageInfo(packageName, PackageManager.MATCH_APEX); |
| 1287 | } |
| 1288 | } |
| 1289 | |
| 1290 | |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1291 | private boolean packageVersionsEqual(VersionedPackage a, VersionedPackage b) { |
| 1292 | return a.getPackageName().equals(b.getPackageName()) |
| 1293 | && a.getLongVersionCode() == b.getLongVersionCode(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1294 | } |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 1295 | |
| 1296 | private class SessionCallback extends PackageInstaller.SessionCallback { |
| 1297 | |
| 1298 | @Override |
| 1299 | public void onCreated(int sessionId) { } |
| 1300 | |
| 1301 | @Override |
| 1302 | public void onBadgingChanged(int sessionId) { } |
| 1303 | |
| 1304 | @Override |
| 1305 | public void onActiveChanged(int sessionId, boolean active) { } |
| 1306 | |
| 1307 | @Override |
| 1308 | public void onProgressChanged(int sessionId, float progress) { } |
| 1309 | |
| 1310 | @Override |
| 1311 | public void onFinished(int sessionId, boolean success) { |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1312 | NewRollback newRollback; |
| 1313 | synchronized (mLock) { |
| 1314 | newRollback = getNewRollbackForPackageSessionLocked(sessionId); |
| 1315 | if (newRollback != null) { |
| 1316 | mNewRollbacks.remove(newRollback); |
| 1317 | } |
| 1318 | } |
| 1319 | |
| 1320 | if (newRollback != null) { |
| 1321 | RollbackData rollback = completeEnableRollback(newRollback, success); |
| 1322 | if (rollback != null && !rollback.isStaged()) { |
| 1323 | makeRollbackAvailable(rollback); |
| 1324 | } |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 1325 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1326 | } |
| 1327 | } |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 1328 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1329 | /** |
| 1330 | * Add a rollback to the list of rollbacks. |
| 1331 | * This should be called after rollback has been enabled for all packages |
| 1332 | * in the rollback. It does not make the rollback available yet. |
| 1333 | * |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1334 | * @return the rollback data for a successfully enable-completed rollback, |
| 1335 | * or null on error. |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1336 | */ |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1337 | private RollbackData completeEnableRollback(NewRollback newRollback, boolean success) { |
| 1338 | RollbackData data = newRollback.data; |
| 1339 | if (!success) { |
| 1340 | // The install session was aborted, clean up the pending install. |
| 1341 | deleteRollback(data); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1342 | return null; |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1343 | } |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1344 | if (newRollback.isCancelled) { |
| 1345 | Log.e(TAG, "Rollback has been cancelled by PackageManager"); |
| 1346 | deleteRollback(data); |
| 1347 | return null; |
| 1348 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1349 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1350 | // It's safe to access data.info outside a synchronized block because |
| 1351 | // this is running on the handler thread and all changes to the |
| 1352 | // data.info occur on the handler thread. |
| 1353 | if (data.info.getPackages().size() != newRollback.packageSessionIds.length) { |
| 1354 | Log.e(TAG, "Failed to enable rollback for all packages in session."); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1355 | deleteRollback(data); |
| 1356 | return null; |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1357 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1358 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1359 | saveRollbackData(data); |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1360 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1361 | // Note: There is a small window of time between when |
| 1362 | // the session has been committed by the package |
| 1363 | // manager and when we make the rollback available |
| 1364 | // here. Presumably the window is small enough that |
| 1365 | // nobody will want to roll back the newly installed |
| 1366 | // package before we make the rollback available. |
| 1367 | // TODO: We'll lose the rollback data if the |
| 1368 | // device reboots between when the session is |
| 1369 | // committed and this point. Revisit this after |
| 1370 | // adding support for rollback of staged installs. |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1371 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1372 | mRollbacks.add(data); |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1373 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1374 | |
| 1375 | return data; |
| 1376 | } |
| 1377 | |
| 1378 | private void makeRollbackAvailable(RollbackData data) { |
| 1379 | // TODO: What if the rollback has since been expired, for example due |
| 1380 | // to a new package being installed. Won't this revive an expired |
| 1381 | // rollback? Consider adding a ROLLBACK_STATE_EXPIRED to address this. |
| 1382 | synchronized (mLock) { |
| 1383 | data.state = RollbackData.ROLLBACK_STATE_AVAILABLE; |
| 1384 | data.timestamp = Instant.now(); |
| 1385 | } |
| 1386 | saveRollbackData(data); |
| 1387 | |
| 1388 | // TODO(zezeozue): Provide API to explicitly start observing instead |
| 1389 | // of doing this for all rollbacks. If we do this for all rollbacks, |
| 1390 | // should document in PackageInstaller.SessionParams#setEnableRollback |
| 1391 | // After enabling and commiting any rollback, observe packages and |
| 1392 | // prepare to rollback if packages crashes too frequently. |
| 1393 | List<String> packages = new ArrayList<>(); |
| 1394 | for (int i = 0; i < data.info.getPackages().size(); i++) { |
| 1395 | packages.add(data.info.getPackages().get(i).getPackageName()); |
| 1396 | } |
| 1397 | mPackageHealthObserver.startObservingHealth(packages, |
| 1398 | mRollbackLifetimeDurationInMillis); |
| 1399 | scheduleExpiration(mRollbackLifetimeDurationInMillis); |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1400 | } |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1401 | |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1402 | /* |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1403 | * Returns the RollbackData, if any, for a rollback with the given |
| 1404 | * rollbackId. |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1405 | */ |
| 1406 | private RollbackData getRollbackForId(int rollbackId) { |
| 1407 | synchronized (mLock) { |
| 1408 | // TODO: Have ensureRollbackDataLoadedLocked return the list of |
| 1409 | // available rollbacks, to hopefully avoid forgetting to call it? |
| 1410 | ensureRollbackDataLoadedLocked(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1411 | for (int i = 0; i < mRollbacks.size(); ++i) { |
| 1412 | RollbackData data = mRollbacks.get(i); |
| 1413 | if (data.info.getRollbackId() == rollbackId) { |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1414 | return data; |
| 1415 | } |
| 1416 | } |
| 1417 | } |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1418 | |
| 1419 | return null; |
| 1420 | } |
| 1421 | |
| 1422 | /** |
| 1423 | * Returns the {@code PackageRollbackInfo} associated with {@code packageName} from |
| 1424 | * a specified {@code RollbackData}. |
| 1425 | */ |
Nikita Ioffe | 5dcd1797 | 2019-02-04 11:08:13 +0000 | [diff] [blame] | 1426 | private static PackageRollbackInfo getPackageRollbackInfo(RollbackData data, |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1427 | String packageName) { |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 1428 | for (PackageRollbackInfo info : data.info.getPackages()) { |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1429 | if (info.getPackageName().equals(packageName)) { |
| 1430 | return info; |
| 1431 | } |
| 1432 | } |
| 1433 | |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1434 | return null; |
| 1435 | } |
| 1436 | |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1437 | @GuardedBy("mLock") |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1438 | private int allocateRollbackIdLocked() { |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1439 | int n = 0; |
| 1440 | int rollbackId; |
| 1441 | do { |
| 1442 | rollbackId = mRandom.nextInt(Integer.MAX_VALUE - 1) + 1; |
| 1443 | if (!mAllocatedRollbackIds.get(rollbackId, false)) { |
| 1444 | mAllocatedRollbackIds.put(rollbackId, true); |
| 1445 | return rollbackId; |
| 1446 | } |
| 1447 | } while (n++ < 32); |
| 1448 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1449 | throw new IllegalStateException("Failed to allocate rollback ID"); |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1450 | } |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1451 | |
| 1452 | private void deleteRollback(RollbackData rollbackData) { |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 1453 | for (PackageRollbackInfo info : rollbackData.info.getPackages()) { |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1454 | IntArray installedUsers = info.getInstalledUsers(); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1455 | for (int i = 0; i < installedUsers.size(); i++) { |
| 1456 | int userId = installedUsers.get(i); |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 1457 | mAppDataRollbackHelper.destroyAppDataSnapshot(rollbackData.info.getRollbackId(), |
| 1458 | info, userId); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1459 | } |
| 1460 | } |
Richard Uhler | aad02c0 | 2019-02-27 12:57:20 +0000 | [diff] [blame] | 1461 | mRollbackStore.deleteRollbackData(rollbackData); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1462 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1463 | |
| 1464 | /** |
| 1465 | * Saves rollback data, swallowing any IOExceptions. |
| 1466 | * For those times when it's not obvious what to do about the IOException. |
| 1467 | * TODO: Double check we can't do a better job handling the IOException in |
| 1468 | * a cases where this method is called. |
| 1469 | */ |
| 1470 | private void saveRollbackData(RollbackData rollbackData) { |
| 1471 | try { |
| 1472 | mRollbackStore.saveRollbackData(rollbackData); |
| 1473 | } catch (IOException ioe) { |
| 1474 | Log.e(TAG, "Unable to save rollback info for: " |
| 1475 | + rollbackData.info.getRollbackId(), ioe); |
| 1476 | } |
| 1477 | } |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 1478 | |
| 1479 | @Override |
| 1480 | protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 1481 | IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " "); |
| 1482 | synchronized (mLock) { |
| 1483 | for (RollbackData data : mRollbacks) { |
| 1484 | RollbackInfo info = data.info; |
| 1485 | ipw.println(info.getRollbackId() + ":"); |
| 1486 | ipw.increaseIndent(); |
| 1487 | ipw.println("-state: " + data.getStateAsString()); |
| 1488 | ipw.println("-timestamp: " + data.timestamp); |
| 1489 | if (data.stagedSessionId != -1) { |
| 1490 | ipw.println("-stagedSessionId: " + data.stagedSessionId); |
| 1491 | } |
| 1492 | ipw.println("-packages:"); |
| 1493 | ipw.increaseIndent(); |
| 1494 | for (PackageRollbackInfo pkg : info.getPackages()) { |
| 1495 | ipw.println(pkg.getPackageName() |
| 1496 | + " " + pkg.getVersionRolledBackFrom().getLongVersionCode() |
| 1497 | + " -> " + pkg.getVersionRolledBackTo().getLongVersionCode()); |
| 1498 | } |
| 1499 | ipw.decreaseIndent(); |
| 1500 | if (data.state == RollbackData.ROLLBACK_STATE_COMMITTED) { |
| 1501 | ipw.println("-causePackages:"); |
| 1502 | ipw.increaseIndent(); |
| 1503 | for (VersionedPackage cPkg : info.getCausePackages()) { |
| 1504 | ipw.println(cPkg.getPackageName() + " " + cPkg.getLongVersionCode()); |
| 1505 | } |
| 1506 | ipw.decreaseIndent(); |
| 1507 | ipw.println("-committedSessionId: " + info.getCommittedSessionId()); |
| 1508 | } |
| 1509 | ipw.decreaseIndent(); |
| 1510 | } |
| 1511 | } |
| 1512 | } |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 1513 | |
| 1514 | private void enforceManageRollbacks(@NonNull String message) { |
| 1515 | if ((PackageManager.PERMISSION_GRANTED != mContext.checkCallingOrSelfPermission( |
| 1516 | Manifest.permission.MANAGE_ROLLBACKS)) |
| 1517 | && (PackageManager.PERMISSION_GRANTED != mContext.checkCallingOrSelfPermission( |
| 1518 | Manifest.permission.TEST_MANAGE_ROLLBACKS))) { |
| 1519 | throw new SecurityException(message + " requires " |
| 1520 | + Manifest.permission.MANAGE_ROLLBACKS + " or " |
| 1521 | + Manifest.permission.TEST_MANAGE_ROLLBACKS); |
| 1522 | } |
| 1523 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1524 | |
| 1525 | private static class NewRollback { |
| 1526 | public final RollbackData data; |
| 1527 | |
| 1528 | /** |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1529 | * This array holds all of the rollback tokens associated with package sessions included |
| 1530 | * in this rollback. This is used to identify which rollback should be cancelled in case |
| 1531 | * {@link PackageManager} sends an {@link Intent#ACTION_CANCEL_ENABLE_ROLLBACK} intent. |
| 1532 | */ |
| 1533 | private final IntArray mTokens = new IntArray(); |
| 1534 | |
| 1535 | /** |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1536 | * Session ids for all packages in the install. |
| 1537 | * For multi-package sessions, this is the list of child session ids. |
| 1538 | * For normal sessions, this list is a single element with the normal |
| 1539 | * session id. |
| 1540 | */ |
| 1541 | public final int[] packageSessionIds; |
| 1542 | |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1543 | /** |
| 1544 | * Flag to determine whether the RollbackData has been cancelled. |
| 1545 | * |
| 1546 | * <p>RollbackData could be invalidated and cancelled if RollbackManager receives |
| 1547 | * {@link Intent#ACTION_CANCEL_ENABLE_ROLLBACK} from {@link PackageManager}. |
| 1548 | * |
| 1549 | * <p>The main underlying assumption here is that if enabling the rollback times out, then |
| 1550 | * {@link PackageManager} will NOT send |
| 1551 | * {@link PackageInstaller.SessionCallback#onFinished(int, boolean)} before it broadcasts |
| 1552 | * {@link Intent#ACTION_CANCEL_ENABLE_ROLLBACK}. |
| 1553 | */ |
| 1554 | public boolean isCancelled = false; |
| 1555 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1556 | NewRollback(RollbackData data, int[] packageSessionIds) { |
| 1557 | this.data = data; |
| 1558 | this.packageSessionIds = packageSessionIds; |
| 1559 | } |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1560 | |
| 1561 | public void addToken(int token) { |
| 1562 | mTokens.add(token); |
| 1563 | } |
| 1564 | |
| 1565 | public boolean hasToken(int token) { |
| 1566 | return mTokens.indexOf(token) != -1; |
| 1567 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1568 | } |
| 1569 | |
| 1570 | NewRollback createNewRollbackLocked(PackageInstaller.SessionInfo parentSession) { |
| 1571 | int rollbackId = allocateRollbackIdLocked(); |
| 1572 | final RollbackData data; |
| 1573 | int parentSessionId = parentSession.getSessionId(); |
| 1574 | |
| 1575 | if (parentSession.isStaged()) { |
| 1576 | data = mRollbackStore.createStagedRollback(rollbackId, parentSessionId); |
| 1577 | } else { |
| 1578 | data = mRollbackStore.createNonStagedRollback(rollbackId); |
| 1579 | } |
| 1580 | |
| 1581 | int[] packageSessionIds; |
| 1582 | if (parentSession.isMultiPackage()) { |
| 1583 | packageSessionIds = parentSession.getChildSessionIds(); |
| 1584 | } else { |
| 1585 | packageSessionIds = new int[]{parentSessionId}; |
| 1586 | } |
| 1587 | |
| 1588 | return new NewRollback(data, packageSessionIds); |
| 1589 | } |
| 1590 | |
| 1591 | /** |
| 1592 | * Returns the NewRollback associated with the given package session. |
| 1593 | * Returns null if no NewRollback is found for the given package |
| 1594 | * session. |
| 1595 | */ |
| 1596 | NewRollback getNewRollbackForPackageSessionLocked(int packageSessionId) { |
| 1597 | // We expect mNewRollbacks to be a very small list; linear search |
| 1598 | // should be plenty fast. |
| 1599 | for (NewRollback newRollbackData : mNewRollbacks) { |
| 1600 | for (int id : newRollbackData.packageSessionIds) { |
| 1601 | if (id == packageSessionId) { |
| 1602 | return newRollbackData; |
| 1603 | } |
| 1604 | } |
| 1605 | } |
| 1606 | return null; |
| 1607 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1608 | } |