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; |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 48 | import android.os.SystemClock; |
shafik | 74fec18 | 2019-03-14 16:29:48 +0000 | [diff] [blame] | 49 | import android.os.UserHandle; |
Richard Uhler | 0c48af8 | 2019-06-07 14:04:43 +0100 | [diff] [blame] | 50 | import android.os.UserManager; |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 51 | import android.provider.DeviceConfig; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 52 | import android.util.ArraySet; |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 53 | import android.util.IntArray; |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 54 | import android.util.Slog; |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 55 | import android.util.SparseBooleanArray; |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 56 | import android.util.SparseLongArray; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 57 | |
| 58 | import com.android.internal.annotations.GuardedBy; |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 59 | import com.android.internal.util.ArrayUtils; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 60 | import com.android.internal.util.IndentingPrintWriter; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 61 | import com.android.server.LocalServices; |
shafik | 18b627e | 2019-05-01 20:41:48 +0100 | [diff] [blame] | 62 | import com.android.server.Watchdog; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 63 | import com.android.server.pm.Installer; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 64 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 65 | import java.io.File; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 66 | import java.io.FileDescriptor; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 67 | import java.io.IOException; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 68 | import java.io.PrintWriter; |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 69 | import java.security.SecureRandom; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 70 | import java.time.Instant; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 71 | import java.time.temporal.ChronoUnit; |
| 72 | import java.util.ArrayList; |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 73 | import java.util.HashSet; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 74 | import java.util.Iterator; |
| 75 | import java.util.List; |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 76 | import java.util.Random; |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 77 | import java.util.Set; |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 78 | import java.util.concurrent.CountDownLatch; |
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 | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 113 | // 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 | @GuardedBy("mLock") |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 119 | private final List<Rollback> mRollbacks; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 120 | |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 121 | private final RollbackStore mRollbackStore; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 122 | |
| 123 | private final Context mContext; |
| 124 | private final HandlerThread mHandlerThread; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 125 | private final Installer mInstaller; |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 126 | private final RollbackPackageHealthObserver mPackageHealthObserver; |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 127 | private final AppDataRollbackHelper mAppDataRollbackHelper; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 128 | |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 129 | // This field stores the difference in Millis between the uptime (millis since device |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 130 | // has booted) and current time (device wall clock) - it's used to update rollback |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 131 | // timestamps when the time is changed, by the user or by change of timezone. |
| 132 | // No need for guarding with lock because value is only accessed in handler thread. |
| 133 | private long mRelativeBootTime = calculateRelativeBootTime(); |
| 134 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 135 | RollbackManagerServiceImpl(Context context) { |
| 136 | mContext = context; |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 137 | // Note that we're calling onStart here because this object is only constructed on |
| 138 | // SystemService#onStart. |
| 139 | mInstaller = new Installer(mContext); |
| 140 | mInstaller.onStart(); |
shafik | 18b627e | 2019-05-01 20:41:48 +0100 | [diff] [blame] | 141 | |
Richard Uhler | 28e7323 | 2019-01-21 16:48:55 +0000 | [diff] [blame] | 142 | mRollbackStore = new RollbackStore(new File(Environment.getDataDirectory(), "rollback")); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 143 | |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 144 | mPackageHealthObserver = new RollbackPackageHealthObserver(mContext); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 145 | mAppDataRollbackHelper = new AppDataRollbackHelper(mInstaller); |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 146 | |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 147 | // Load rollback data from device storage. |
| 148 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 149 | mRollbacks = mRollbackStore.loadRollbacks(); |
| 150 | for (Rollback rollback : mRollbacks) { |
| 151 | mAllocatedRollbackIds.put(rollback.info.getRollbackId(), true); |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 152 | } |
| 153 | } |
| 154 | |
| 155 | // Kick off and start monitoring the handler thread. |
| 156 | mHandlerThread = new HandlerThread("RollbackManagerServiceHandler"); |
| 157 | mHandlerThread.start(); |
| 158 | Watchdog.getInstance().addThread(getHandler(), HANDLER_THREAD_TIMEOUT_DURATION_MILLIS); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 159 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 160 | for (UserInfo userInfo : UserManager.get(mContext).getUsers(true)) { |
| 161 | registerUserCallbacks(userInfo.getUserHandle()); |
| 162 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 163 | |
| 164 | IntentFilter enableRollbackFilter = new IntentFilter(); |
| 165 | enableRollbackFilter.addAction(Intent.ACTION_PACKAGE_ENABLE_ROLLBACK); |
| 166 | try { |
| 167 | enableRollbackFilter.addDataType("application/vnd.android.package-archive"); |
| 168 | } catch (IntentFilter.MalformedMimeTypeException e) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 169 | Slog.e(TAG, "addDataType", e); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | mContext.registerReceiver(new BroadcastReceiver() { |
| 173 | @Override |
| 174 | public void onReceive(Context context, Intent intent) { |
| 175 | if (Intent.ACTION_PACKAGE_ENABLE_ROLLBACK.equals(intent.getAction())) { |
| 176 | int token = intent.getIntExtra( |
| 177 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_TOKEN, -1); |
| 178 | int installFlags = intent.getIntExtra( |
| 179 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_INSTALL_FLAGS, 0); |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 180 | int user = intent.getIntExtra( |
| 181 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_USER, 0); |
| 182 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 183 | File newPackageCodePath = new File(intent.getData().getPath()); |
| 184 | |
| 185 | getHandler().post(() -> { |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 186 | boolean success = |
| 187 | enableRollback(installFlags, newPackageCodePath, user, token); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 188 | int ret = PackageManagerInternal.ENABLE_ROLLBACK_SUCCEEDED; |
| 189 | if (!success) { |
| 190 | ret = PackageManagerInternal.ENABLE_ROLLBACK_FAILED; |
| 191 | } |
| 192 | |
| 193 | PackageManagerInternal pm = LocalServices.getService( |
| 194 | PackageManagerInternal.class); |
| 195 | pm.setEnableRollbackCode(token, ret); |
| 196 | }); |
| 197 | |
| 198 | // We're handling the ordered broadcast. Abort the |
| 199 | // broadcast because there is no need for it to go to |
| 200 | // anyone else. |
| 201 | abortBroadcast(); |
| 202 | } |
| 203 | } |
| 204 | }, enableRollbackFilter, null, getHandler()); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 205 | |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 206 | IntentFilter enableRollbackTimedOutFilter = new IntentFilter(); |
| 207 | enableRollbackTimedOutFilter.addAction(Intent.ACTION_CANCEL_ENABLE_ROLLBACK); |
| 208 | |
| 209 | mContext.registerReceiver(new BroadcastReceiver() { |
| 210 | @Override |
| 211 | public void onReceive(Context context, Intent intent) { |
| 212 | if (Intent.ACTION_CANCEL_ENABLE_ROLLBACK.equals(intent.getAction())) { |
| 213 | int token = intent.getIntExtra( |
| 214 | PackageManagerInternal.EXTRA_ENABLE_ROLLBACK_TOKEN, -1); |
| 215 | synchronized (mLock) { |
| 216 | for (NewRollback rollback : mNewRollbacks) { |
| 217 | if (rollback.hasToken(token)) { |
| 218 | rollback.isCancelled = true; |
| 219 | return; |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | } |
| 224 | } |
| 225 | }, enableRollbackTimedOutFilter, null, getHandler()); |
| 226 | |
shafik | 8aea1ad | 2019-05-21 12:34:50 +0100 | [diff] [blame] | 227 | IntentFilter userAddedIntentFilter = new IntentFilter(Intent.ACTION_USER_ADDED); |
| 228 | mContext.registerReceiver(new BroadcastReceiver() { |
| 229 | @Override |
| 230 | public void onReceive(Context context, Intent intent) { |
| 231 | if (Intent.ACTION_USER_ADDED.equals(intent.getAction())) { |
| 232 | final int newUserId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1); |
| 233 | if (newUserId == -1) { |
| 234 | return; |
| 235 | } |
| 236 | registerUserCallbacks(UserHandle.of(newUserId)); |
| 237 | } |
| 238 | } |
| 239 | }, userAddedIntentFilter, null, getHandler()); |
| 240 | |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 241 | registerTimeChangeReceiver(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 242 | } |
| 243 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 244 | private void registerUserCallbacks(UserHandle user) { |
| 245 | Context context = getContextAsUser(user); |
| 246 | if (context == null) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 247 | Slog.e(TAG, "Unable to register user callbacks for user " + user); |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 248 | return; |
| 249 | } |
| 250 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 251 | context.getPackageManager().getPackageInstaller() |
| 252 | .registerSessionCallback(new SessionCallback(), getHandler()); |
| 253 | |
| 254 | IntentFilter filter = new IntentFilter(); |
| 255 | filter.addAction(Intent.ACTION_PACKAGE_REPLACED); |
| 256 | filter.addAction(Intent.ACTION_PACKAGE_FULLY_REMOVED); |
| 257 | filter.addDataScheme("package"); |
| 258 | context.registerReceiver(new BroadcastReceiver() { |
| 259 | @Override |
| 260 | public void onReceive(Context context, Intent intent) { |
| 261 | String action = intent.getAction(); |
| 262 | if (Intent.ACTION_PACKAGE_REPLACED.equals(action)) { |
| 263 | String packageName = intent.getData().getSchemeSpecificPart(); |
| 264 | onPackageReplaced(packageName); |
| 265 | } |
| 266 | if (Intent.ACTION_PACKAGE_FULLY_REMOVED.equals(action)) { |
| 267 | String packageName = intent.getData().getSchemeSpecificPart(); |
| 268 | onPackageFullyRemoved(packageName); |
| 269 | } |
| 270 | } |
| 271 | }, filter, null, getHandler()); |
| 272 | } |
| 273 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 274 | @Override |
Richard Uhler | 150ad98 | 2019-01-23 15:16:10 +0000 | [diff] [blame] | 275 | public ParceledListSlice getAvailableRollbacks() { |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 276 | enforceManageRollbacks("getAvailableRollbacks"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 277 | synchronized (mLock) { |
Richard Uhler | 150ad98 | 2019-01-23 15:16:10 +0000 | [diff] [blame] | 278 | List<RollbackInfo> rollbacks = new ArrayList<>(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 279 | for (int i = 0; i < mRollbacks.size(); ++i) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 280 | Rollback rollback = mRollbacks.get(i); |
| 281 | if (rollback.state == Rollback.ROLLBACK_STATE_AVAILABLE) { |
| 282 | rollbacks.add(rollback.info); |
Richard Uhler | 60ac706 | 2019-02-05 13:25:39 +0000 | [diff] [blame] | 283 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 284 | } |
Richard Uhler | 150ad98 | 2019-01-23 15:16:10 +0000 | [diff] [blame] | 285 | return new ParceledListSlice<>(rollbacks); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 286 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 287 | } |
| 288 | |
| 289 | @Override |
Richard Uhler | fcf64e8 | 2019-06-28 10:55:45 +0100 | [diff] [blame] | 290 | public ParceledListSlice<RollbackInfo> getRecentlyCommittedRollbacks() { |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 291 | enforceManageRollbacks("getRecentlyCommittedRollbacks"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 292 | |
| 293 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 294 | List<RollbackInfo> rollbacks = new ArrayList<>(); |
| 295 | for (int i = 0; i < mRollbacks.size(); ++i) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 296 | Rollback rollback = mRollbacks.get(i); |
| 297 | if (rollback.state == Rollback.ROLLBACK_STATE_COMMITTED) { |
| 298 | rollbacks.add(rollback.info); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 299 | } |
| 300 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 301 | return new ParceledListSlice<>(rollbacks); |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | @Override |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 306 | public void commitRollback(int rollbackId, ParceledListSlice causePackages, |
| 307 | String callerPackageName, IntentSender statusReceiver) { |
Richard Uhler | fcf64e8 | 2019-06-28 10:55:45 +0100 | [diff] [blame] | 308 | enforceManageRollbacks("commitRollback"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 309 | |
| 310 | final int callingUid = Binder.getCallingUid(); |
| 311 | AppOpsManager appOps = mContext.getSystemService(AppOpsManager.class); |
| 312 | appOps.checkPackage(callingUid, callerPackageName); |
| 313 | |
| 314 | getHandler().post(() -> |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 315 | commitRollbackInternal(rollbackId, causePackages.getList(), |
| 316 | callerPackageName, statusReceiver)); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 317 | } |
| 318 | |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 319 | private void registerTimeChangeReceiver() { |
| 320 | final BroadcastReceiver timeChangeIntentReceiver = new BroadcastReceiver() { |
| 321 | @Override |
| 322 | public void onReceive(Context context, Intent intent) { |
| 323 | final long oldRelativeBootTime = mRelativeBootTime; |
| 324 | mRelativeBootTime = calculateRelativeBootTime(); |
| 325 | final long timeDifference = mRelativeBootTime - oldRelativeBootTime; |
| 326 | |
| 327 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 328 | Iterator<Rollback> iter = mRollbacks.iterator(); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 329 | while (iter.hasNext()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 330 | Rollback rollback = iter.next(); |
| 331 | rollback.timestamp = rollback.timestamp.plusMillis(timeDifference); |
| 332 | saveRollback(rollback); |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 333 | } |
shafik | da5e4ee | 2019-02-12 16:29:01 +0000 | [diff] [blame] | 334 | } |
| 335 | } |
| 336 | }; |
| 337 | final IntentFilter filter = new IntentFilter(); |
| 338 | filter.addAction(Intent.ACTION_TIME_CHANGED); |
| 339 | mContext.registerReceiver(timeChangeIntentReceiver, filter, |
| 340 | null /* broadcastPermission */, getHandler()); |
| 341 | } |
| 342 | |
| 343 | private static long calculateRelativeBootTime() { |
| 344 | return System.currentTimeMillis() - SystemClock.elapsedRealtime(); |
| 345 | } |
| 346 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 347 | /** |
Richard Uhler | e87368e | 2019-01-24 16:34:14 +0000 | [diff] [blame] | 348 | * Performs the actual work to commit a rollback. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 349 | * The work is done on the current thread. This may be a long running |
| 350 | * operation. |
| 351 | */ |
Richard Uhler | bf5b5c4 | 2019-01-28 15:26:37 +0000 | [diff] [blame] | 352 | private void commitRollbackInternal(int rollbackId, List<VersionedPackage> causePackages, |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 353 | String callerPackageName, IntentSender statusReceiver) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 354 | Slog.i(TAG, "Initiating rollback"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 355 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 356 | Rollback rollback = getRollbackForId(rollbackId); |
| 357 | if (rollback == null || rollback.state != Rollback.ROLLBACK_STATE_AVAILABLE) { |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 358 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE_ROLLBACK_UNAVAILABLE, |
| 359 | "Rollback unavailable"); |
Narayan Kamath | bc36f8d | 2019-01-23 12:00:08 +0000 | [diff] [blame] | 360 | return; |
| 361 | } |
| 362 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 363 | // Get a context for the caller to use to install the downgraded |
| 364 | // version of the package. |
Gavin Corkery | e92720d | 2019-08-07 17:38:36 +0100 | [diff] [blame] | 365 | final Context context; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 366 | try { |
| 367 | context = mContext.createPackageContext(callerPackageName, 0); |
| 368 | } catch (PackageManager.NameNotFoundException e) { |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 369 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE, |
| 370 | "Invalid callerPackageName"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 371 | return; |
| 372 | } |
| 373 | |
| 374 | PackageManager pm = context.getPackageManager(); |
| 375 | try { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 376 | PackageInstaller packageInstaller = pm.getPackageInstaller(); |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 377 | PackageInstaller.SessionParams parentParams = new PackageInstaller.SessionParams( |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 378 | PackageInstaller.SessionParams.MODE_FULL_INSTALL); |
Nikita Ioffe | b1d60f1 | 2019-03-06 18:56:49 +0000 | [diff] [blame] | 379 | parentParams.setRequestDowngrade(true); |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 380 | parentParams.setMultiPackage(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 381 | if (rollback.isStaged()) { |
Richard Uhler | 72fb961 | 2019-02-04 14:37:36 +0000 | [diff] [blame] | 382 | parentParams.setStaged(); |
| 383 | } |
| 384 | |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 385 | int parentSessionId = packageInstaller.createSession(parentParams); |
| 386 | PackageInstaller.Session parentSession = packageInstaller.openSession(parentSessionId); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 387 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 388 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 389 | PackageInstaller.SessionParams params = new PackageInstaller.SessionParams( |
| 390 | PackageInstaller.SessionParams.MODE_FULL_INSTALL); |
Richard Uhler | 7a5eeb1 | 2019-02-05 12:51:48 +0000 | [diff] [blame] | 391 | // TODO: We can't get the installerPackageName for apex |
| 392 | // (b/123920130). Is it okay to ignore the installer package |
| 393 | // for apex? |
| 394 | if (!info.isApex()) { |
| 395 | String installerPackageName = pm.getInstallerPackageName(info.getPackageName()); |
Richard Uhler | a7d18bb | 2019-02-06 11:58:17 +0000 | [diff] [blame] | 396 | if (installerPackageName != null) { |
| 397 | params.setInstallerPackageName(installerPackageName); |
Richard Uhler | 7a5eeb1 | 2019-02-05 12:51:48 +0000 | [diff] [blame] | 398 | } |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 399 | } |
Nikita Ioffe | b1d60f1 | 2019-03-06 18:56:49 +0000 | [diff] [blame] | 400 | params.setRequestDowngrade(true); |
Richard Uhler | 2124d4b | 2019-04-25 13:01:39 +0100 | [diff] [blame] | 401 | params.setRequiredInstalledVersionCode( |
| 402 | info.getVersionRolledBackFrom().getLongVersionCode()); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 403 | if (rollback.isStaged()) { |
Richard Uhler | 72fb961 | 2019-02-04 14:37:36 +0000 | [diff] [blame] | 404 | params.setStaged(); |
| 405 | } |
| 406 | if (info.isApex()) { |
| 407 | params.setInstallAsApex(); |
| 408 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 409 | int sessionId = packageInstaller.createSession(params); |
| 410 | PackageInstaller.Session session = packageInstaller.openSession(sessionId); |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 411 | File[] packageCodePaths = RollbackStore.getPackageCodePaths( |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 412 | rollback, info.getPackageName()); |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 413 | if (packageCodePaths == null) { |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 414 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE, |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 415 | "Backup copy of package inaccessible"); |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 416 | return; |
| 417 | } |
| 418 | |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 419 | for (File packageCodePath : packageCodePaths) { |
| 420 | try (ParcelFileDescriptor fd = ParcelFileDescriptor.open(packageCodePath, |
| 421 | ParcelFileDescriptor.MODE_READ_ONLY)) { |
| 422 | final long token = Binder.clearCallingIdentity(); |
| 423 | try { |
| 424 | session.write(packageCodePath.getName(), 0, packageCodePath.length(), |
| 425 | fd); |
| 426 | } finally { |
| 427 | Binder.restoreCallingIdentity(token); |
| 428 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 429 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 430 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 431 | parentSession.addChildSessionId(sessionId); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 432 | } |
| 433 | |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 434 | final LocalIntentReceiver receiver = new LocalIntentReceiver( |
| 435 | (Intent result) -> { |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 436 | getHandler().post(() -> { |
Narayan Kamath | bc36f8d | 2019-01-23 12:00:08 +0000 | [diff] [blame] | 437 | |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 438 | int status = result.getIntExtra(PackageInstaller.EXTRA_STATUS, |
| 439 | PackageInstaller.STATUS_FAILURE); |
| 440 | if (status != PackageInstaller.STATUS_SUCCESS) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 441 | // Committing the rollback failed, but we |
| 442 | // still have all the info we need to try |
| 443 | // rolling back again, so restore the rollback |
| 444 | // state to how it was before we tried |
| 445 | // committing. |
| 446 | // TODO: Should we just kill this rollback if |
| 447 | // commit failed? Why would we expect commit |
| 448 | // not to fail again? |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 449 | synchronized (mLock) { |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 450 | // TODO: Could this cause a rollback to be |
| 451 | // resurrected if it should otherwise have |
| 452 | // expired by now? |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 453 | rollback.state = Rollback.ROLLBACK_STATE_AVAILABLE; |
| 454 | rollback.restoreUserDataInProgress = false; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 455 | } |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 456 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE_INSTALL, |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 457 | "Rollback downgrade install failed: " |
| 458 | + result.getStringExtra( |
| 459 | PackageInstaller.EXTRA_STATUS_MESSAGE)); |
| 460 | return; |
| 461 | } |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 462 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 463 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 464 | if (!rollback.isStaged()) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 465 | // All calls to restoreUserData should have |
| 466 | // completed by now for a non-staged install. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 467 | rollback.restoreUserDataInProgress = false; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 468 | } |
| 469 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 470 | rollback.info.setCommittedSessionId(parentSessionId); |
| 471 | rollback.info.getCausePackages().addAll(causePackages); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 472 | } |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 473 | mRollbackStore.deletePackageCodePaths(rollback); |
| 474 | saveRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 475 | |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 476 | sendSuccess(statusReceiver); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 477 | |
Richard Uhler | dca7beb | 2019-01-24 09:56:03 +0000 | [diff] [blame] | 478 | Intent broadcast = new Intent(Intent.ACTION_ROLLBACK_COMMITTED); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 479 | |
Gavin Corkery | e92720d | 2019-08-07 17:38:36 +0100 | [diff] [blame] | 480 | for (UserInfo userInfo : UserManager.get(mContext).getUsers(true)) { |
| 481 | mContext.sendBroadcastAsUser(broadcast, userInfo.getUserHandle(), |
| 482 | Manifest.permission.MANAGE_ROLLBACKS); |
| 483 | } |
Zimuzo | c4073cc | 2019-01-18 18:39:18 +0000 | [diff] [blame] | 484 | }); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 485 | } |
| 486 | ); |
| 487 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 488 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 489 | rollback.state = Rollback.ROLLBACK_STATE_COMMITTED; |
| 490 | rollback.restoreUserDataInProgress = true; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 491 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 492 | parentSession.commit(receiver.getIntentSender()); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 493 | } catch (IOException e) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 494 | Slog.e(TAG, "Rollback failed", e); |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 495 | sendFailure(statusReceiver, RollbackManager.STATUS_FAILURE, |
| 496 | "IOException: " + e.toString()); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 497 | return; |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | @Override |
| 502 | public void reloadPersistedData() { |
| 503 | mContext.enforceCallingOrSelfPermission( |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 504 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 505 | "reloadPersistedData"); |
| 506 | |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 507 | CountDownLatch latch = new CountDownLatch(1); |
shafik | 6d61f5e | 2019-02-26 09:33:26 +0000 | [diff] [blame] | 508 | getHandler().post(() -> { |
| 509 | updateRollbackLifetimeDurationInMillis(); |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 510 | synchronized (mLock) { |
| 511 | mRollbacks.clear(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 512 | mRollbacks.addAll(mRollbackStore.loadRollbacks()); |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 513 | } |
| 514 | latch.countDown(); |
shafik | 6d61f5e | 2019-02-26 09:33:26 +0000 | [diff] [blame] | 515 | }); |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 516 | |
| 517 | try { |
| 518 | latch.await(); |
| 519 | } catch (InterruptedException ie) { |
| 520 | throw new IllegalStateException("RollbackManagerHandlerThread interrupted"); |
| 521 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | @Override |
| 525 | public void expireRollbackForPackage(String packageName) { |
| 526 | mContext.enforceCallingOrSelfPermission( |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 527 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 528 | "expireRollbackForPackage"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 529 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 530 | Iterator<Rollback> iter = mRollbacks.iterator(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 531 | while (iter.hasNext()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 532 | Rollback rollback = iter.next(); |
| 533 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 534 | if (info.getPackageName().equals(packageName)) { |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 535 | iter.remove(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 536 | deleteRollback(rollback); |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 537 | break; |
| 538 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 539 | } |
| 540 | } |
Oli Lan | dc4a361 | 2019-08-14 11:45:37 +0100 | [diff] [blame] | 541 | for (NewRollback newRollback : mNewRollbacks) { |
| 542 | for (PackageRollbackInfo info : newRollback.rollback.info.getPackages()) { |
| 543 | if (info.getPackageName().equals(packageName)) { |
| 544 | newRollback.isCancelled = true; |
| 545 | break; |
| 546 | } |
| 547 | } |
| 548 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 549 | } |
| 550 | } |
| 551 | |
Richard Uhler | 0c48af8 | 2019-06-07 14:04:43 +0100 | [diff] [blame] | 552 | @Override |
| 553 | public void blockRollbackManager(long millis) { |
| 554 | mContext.enforceCallingOrSelfPermission( |
| 555 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
| 556 | "blockRollbackManager"); |
| 557 | getHandler().post(() -> { |
| 558 | try { |
| 559 | Thread.sleep(millis); |
| 560 | } catch (InterruptedException e) { |
Richard Uhler | 32830a3 | 2019-07-01 15:21:44 +0100 | [diff] [blame] | 561 | throw new IllegalStateException("RollbackManagerHandlerThread interrupted"); |
Richard Uhler | 0c48af8 | 2019-06-07 14:04:43 +0100 | [diff] [blame] | 562 | } |
| 563 | }); |
| 564 | } |
| 565 | |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 566 | void onUnlockUser(int userId) { |
| 567 | getHandler().post(() -> { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 568 | final List<Rollback> rollbacks; |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 569 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 570 | rollbacks = new ArrayList<>(mRollbacks); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 571 | } |
| 572 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 573 | final Set<Rollback> changed = |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 574 | mAppDataRollbackHelper.commitPendingBackupAndRestoreForUser(userId, rollbacks); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 575 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 576 | for (Rollback rollback : changed) { |
| 577 | saveRollback(rollback); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 578 | } |
| 579 | }); |
| 580 | } |
| 581 | |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 582 | private void updateRollbackLifetimeDurationInMillis() { |
Stanislav Zholnin | 6b85dac | 2019-03-07 12:16:04 +0000 | [diff] [blame] | 583 | mRollbackLifetimeDurationInMillis = DeviceConfig.getLong( |
Matt Pape | 12187ae | 2019-03-14 13:37:32 -0700 | [diff] [blame] | 584 | DeviceConfig.NAMESPACE_ROLLBACK_BOOT, |
| 585 | RollbackManager.PROPERTY_ROLLBACK_LIFETIME_MILLIS, |
Stanislav Zholnin | 6b85dac | 2019-03-07 12:16:04 +0000 | [diff] [blame] | 586 | DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS); |
shafik | 15c511f | 2019-03-08 11:52:08 +0000 | [diff] [blame] | 587 | if (mRollbackLifetimeDurationInMillis < 0) { |
| 588 | mRollbackLifetimeDurationInMillis = DEFAULT_ROLLBACK_LIFETIME_DURATION_MILLIS; |
| 589 | } |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 590 | } |
| 591 | |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 592 | void onBootCompleted() { |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 593 | getHandler().post(() -> updateRollbackLifetimeDurationInMillis()); |
| 594 | // Also posts to handler thread |
| 595 | scheduleExpiration(0); |
| 596 | |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 597 | getHandler().post(() -> { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 598 | // Check to see if any rollback-enabled staged sessions or staged |
| 599 | // rollback sessions been applied. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 600 | List<Rollback> enabling = new ArrayList<>(); |
| 601 | List<Rollback> restoreInProgress = new ArrayList<>(); |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 602 | Set<String> apexPackageNames = new HashSet<>(); |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 603 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 604 | for (Rollback rollback : mRollbacks) { |
| 605 | if (rollback.isStaged()) { |
| 606 | if (rollback.state == Rollback.ROLLBACK_STATE_ENABLING) { |
| 607 | enabling.add(rollback); |
| 608 | } else if (rollback.restoreUserDataInProgress) { |
| 609 | restoreInProgress.add(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 610 | } |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 611 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 612 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 613 | if (info.isApex()) { |
| 614 | apexPackageNames.add(info.getPackageName()); |
| 615 | } |
| 616 | } |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 617 | } |
| 618 | } |
| 619 | } |
| 620 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 621 | for (Rollback rollback : enabling) { |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 622 | PackageInstaller installer = mContext.getPackageManager().getPackageInstaller(); |
| 623 | PackageInstaller.SessionInfo session = installer.getSessionInfo( |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 624 | rollback.stagedSessionId); |
Richard Uhler | 1d5db77 | 2019-07-01 16:27:43 +0100 | [diff] [blame] | 625 | if (session == null || session.isStagedSessionFailed()) { |
| 626 | // TODO: Do we need to remove this from |
| 627 | // mRollbacks, or is it okay to leave as |
| 628 | // unavailable until the next reboot when it will go |
| 629 | // away on its own? |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 630 | deleteRollback(rollback); |
Richard Uhler | 1d5db77 | 2019-07-01 16:27:43 +0100 | [diff] [blame] | 631 | } else if (session.isStagedSessionApplied()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 632 | makeRollbackAvailable(rollback); |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 633 | } |
| 634 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 635 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 636 | for (Rollback rollback : restoreInProgress) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 637 | PackageInstaller installer = mContext.getPackageManager().getPackageInstaller(); |
| 638 | PackageInstaller.SessionInfo session = installer.getSessionInfo( |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 639 | rollback.stagedSessionId); |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 640 | // TODO: What if session is null? |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 641 | if (session != null) { |
| 642 | if (session.isStagedSessionApplied() || session.isStagedSessionFailed()) { |
| 643 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 644 | rollback.restoreUserDataInProgress = false; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 645 | } |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 646 | saveRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 647 | } |
| 648 | } |
| 649 | } |
Zimuzo | 841c494 | 2019-03-04 12:31:48 +0000 | [diff] [blame] | 650 | |
Richard Uhler | 1924d6d | 2019-04-26 10:20:12 +0100 | [diff] [blame] | 651 | for (String apexPackageName : apexPackageNames) { |
| 652 | // We will not recieve notifications when an apex is updated, |
| 653 | // so check now in case any rollbacks ought to be expired. The |
| 654 | // onPackagedReplace function is safe to call if the package |
| 655 | // hasn't actually been updated. |
| 656 | onPackageReplaced(apexPackageName); |
| 657 | } |
shafik | c5805fb9 | 2019-04-29 20:08:07 +0100 | [diff] [blame] | 658 | mPackageHealthObserver.onBootCompletedAsync(); |
Richard Uhler | b2c5cac | 2019-02-05 16:14:35 +0000 | [diff] [blame] | 659 | }); |
| 660 | } |
| 661 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 662 | /** |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 663 | * Called when a package has been replaced with a different version. |
| 664 | * Removes all backups for the package not matching the currently |
| 665 | * installed package version. |
| 666 | */ |
| 667 | private void onPackageReplaced(String packageName) { |
| 668 | // TODO: Could this end up incorrectly deleting a rollback for a |
| 669 | // package that is about to be installed? |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 670 | VersionedPackage installedVersion = getInstalledPackageVersion(packageName); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 671 | |
| 672 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 673 | Iterator<Rollback> iter = mRollbacks.iterator(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 674 | while (iter.hasNext()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 675 | Rollback rollback = iter.next(); |
Richard Uhler | e9aaf63 | 2019-03-01 16:03:01 +0000 | [diff] [blame] | 676 | // TODO: Should we remove rollbacks in the ENABLING state here? |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 677 | if (rollback.state == Rollback.ROLLBACK_STATE_AVAILABLE |
| 678 | || rollback.state == Rollback.ROLLBACK_STATE_ENABLING) { |
| 679 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 680 | if (info.getPackageName().equals(packageName) |
| 681 | && !packageVersionsEqual( |
| 682 | info.getVersionRolledBackFrom(), |
| 683 | installedVersion)) { |
| 684 | iter.remove(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 685 | deleteRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 686 | break; |
| 687 | } |
Richard Uhler | 01b0615 | 2019-01-09 13:51:54 +0000 | [diff] [blame] | 688 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 689 | } |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | /** |
| 695 | * Called when a package has been completely removed from the device. |
| 696 | * Removes all backups and rollback history for the given package. |
| 697 | */ |
| 698 | private void onPackageFullyRemoved(String packageName) { |
| 699 | expireRollbackForPackage(packageName); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 700 | } |
| 701 | |
| 702 | /** |
| 703 | * Notifies an IntentSender of failure. |
| 704 | * |
| 705 | * @param statusReceiver where to send the failure |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 706 | * @param status the RollbackManager.STATUS_* code with the failure. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 707 | * @param message the failure message. |
| 708 | */ |
Richard Uhler | a4b7030 | 2019-03-11 14:34:33 +0000 | [diff] [blame] | 709 | private void sendFailure(IntentSender statusReceiver, @RollbackManager.Status int status, |
| 710 | String message) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 711 | Slog.e(TAG, message); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 712 | try { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 713 | final Intent fillIn = new Intent(); |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 714 | fillIn.putExtra(RollbackManager.EXTRA_STATUS, status); |
| 715 | fillIn.putExtra(RollbackManager.EXTRA_STATUS_MESSAGE, message); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 716 | statusReceiver.sendIntent(mContext, 0, fillIn, null, null); |
| 717 | } catch (IntentSender.SendIntentException e) { |
| 718 | // Nowhere to send the result back to, so don't bother. |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | /** |
| 723 | * Notifies an IntentSender of success. |
| 724 | */ |
| 725 | private void sendSuccess(IntentSender statusReceiver) { |
| 726 | try { |
| 727 | final Intent fillIn = new Intent(); |
Richard Uhler | 2a48c29 | 2019-01-28 17:33:48 +0000 | [diff] [blame] | 728 | fillIn.putExtra(RollbackManager.EXTRA_STATUS, RollbackManager.STATUS_SUCCESS); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 729 | statusReceiver.sendIntent(mContext, 0, fillIn, null, null); |
| 730 | } catch (IntentSender.SendIntentException e) { |
| 731 | // Nowhere to send the result back to, so don't bother. |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | // Check to see if anything needs expiration, and if so, expire it. |
| 736 | // Schedules future expiration as appropriate. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 737 | private void runExpiration() { |
| 738 | Instant now = Instant.now(); |
| 739 | Instant oldest = null; |
| 740 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 741 | Iterator<Rollback> iter = mRollbacks.iterator(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 742 | while (iter.hasNext()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 743 | Rollback rollback = iter.next(); |
| 744 | if (rollback.state != Rollback.ROLLBACK_STATE_AVAILABLE) { |
Richard Uhler | 60ac706 | 2019-02-05 13:25:39 +0000 | [diff] [blame] | 745 | continue; |
| 746 | } |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 747 | if (!now.isBefore( |
| 748 | rollback.timestamp.plusMillis(mRollbackLifetimeDurationInMillis))) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 749 | iter.remove(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 750 | deleteRollback(rollback); |
| 751 | } else if (oldest == null || oldest.isAfter(rollback.timestamp)) { |
| 752 | oldest = rollback.timestamp; |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 753 | } |
| 754 | } |
| 755 | } |
| 756 | |
| 757 | if (oldest != null) { |
shafik | 0ad18b8 | 2019-01-24 16:27:24 +0000 | [diff] [blame] | 758 | scheduleExpiration(now.until(oldest.plusMillis(mRollbackLifetimeDurationInMillis), |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 759 | ChronoUnit.MILLIS)); |
| 760 | } |
| 761 | } |
| 762 | |
| 763 | /** |
| 764 | * Schedules an expiration check to be run after the given duration in |
| 765 | * milliseconds has gone by. |
| 766 | */ |
| 767 | private void scheduleExpiration(long duration) { |
| 768 | getHandler().postDelayed(() -> runExpiration(), duration); |
| 769 | } |
| 770 | |
| 771 | private Handler getHandler() { |
| 772 | return mHandlerThread.getThreadHandler(); |
| 773 | } |
| 774 | |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 775 | // Returns true if <code>session</code> has installFlags and code path |
| 776 | // matching the installFlags and new package code path given to |
| 777 | // enableRollback. |
| 778 | private boolean sessionMatchesForEnableRollback(PackageInstaller.SessionInfo session, |
| 779 | int installFlags, File newPackageCodePath) { |
| 780 | if (session == null || session.resolvedBaseCodePath == null) { |
| 781 | return false; |
| 782 | } |
| 783 | |
| 784 | File packageCodePath = new File(session.resolvedBaseCodePath).getParentFile(); |
| 785 | if (newPackageCodePath.equals(packageCodePath) && installFlags == session.installFlags) { |
| 786 | return true; |
| 787 | } |
| 788 | |
| 789 | return false; |
| 790 | } |
| 791 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 792 | private Context getContextAsUser(UserHandle user) { |
| 793 | try { |
| 794 | return mContext.createPackageContextAsUser(mContext.getPackageName(), 0, user); |
| 795 | } catch (PackageManager.NameNotFoundException e) { |
| 796 | return null; |
| 797 | } |
| 798 | } |
| 799 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 800 | /** |
| 801 | * Called via broadcast by the package manager when a package is being |
| 802 | * staged for install with rollback enabled. Called before the package has |
| 803 | * been installed. |
| 804 | * |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 805 | * @param installFlags information about what is being installed. |
| 806 | * @param newPackageCodePath path to the package about to be installed. |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 807 | * @param user the user that owns the install session to enable rollback on. |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 808 | * @param token the distinct rollback token sent by package manager. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 809 | * @return true if enabling the rollback succeeds, false otherwise. |
| 810 | */ |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 811 | private boolean enableRollback( |
| 812 | int installFlags, File newPackageCodePath, @UserIdInt int user, int token) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 813 | |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 814 | // Find the session id associated with this install. |
| 815 | // TODO: It would be nice if package manager or package installer told |
| 816 | // us the session directly, rather than have to search for it |
| 817 | // ourselves. |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 818 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 819 | // getAllSessions only returns sessions for the associated user. |
| 820 | // Create a context with the right user so we can find the matching |
| 821 | // session. |
| 822 | final Context context = getContextAsUser(UserHandle.of(user)); |
| 823 | if (context == null) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 824 | Slog.e(TAG, "Unable to create context for install session user."); |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 825 | return false; |
| 826 | } |
| 827 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 828 | PackageInstaller.SessionInfo parentSession = null; |
| 829 | PackageInstaller.SessionInfo packageSession = null; |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 830 | PackageInstaller installer = context.getPackageManager().getPackageInstaller(); |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 831 | for (PackageInstaller.SessionInfo info : installer.getAllSessions()) { |
Richard Uhler | f1910c5 | 2019-01-09 14:27:36 +0000 | [diff] [blame] | 832 | if (info.isMultiPackage()) { |
| 833 | for (int childId : info.getChildSessionIds()) { |
| 834 | PackageInstaller.SessionInfo child = installer.getSessionInfo(childId); |
| 835 | if (sessionMatchesForEnableRollback(child, installFlags, newPackageCodePath)) { |
| 836 | // TODO: Check we only have one matching session? |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 837 | parentSession = info; |
| 838 | packageSession = child; |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 839 | break; |
Richard Uhler | f1910c5 | 2019-01-09 14:27:36 +0000 | [diff] [blame] | 840 | } |
| 841 | } |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 842 | } else if (sessionMatchesForEnableRollback(info, installFlags, newPackageCodePath)) { |
| 843 | // TODO: Check we only have one matching session? |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 844 | parentSession = info; |
| 845 | packageSession = info; |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 846 | break; |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 847 | } |
| 848 | } |
| 849 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 850 | if (parentSession == null || packageSession == null) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 851 | Slog.e(TAG, "Unable to find session for enabled rollback."); |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 852 | return false; |
| 853 | } |
| 854 | |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 855 | // Check to see if this is the apk session for a staged session with |
| 856 | // rollback enabled. |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 857 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 858 | for (int i = 0; i < mRollbacks.size(); ++i) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 859 | Rollback rollback = mRollbacks.get(i); |
| 860 | if (rollback.apkSessionId == parentSession.getSessionId()) { |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 861 | // This is the apk session for a staged session with rollback enabled. We do not |
| 862 | // need to create a new rollback for this session. |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 863 | return true; |
| 864 | } |
| 865 | } |
Richard Uhler | ac0d0f9 | 2019-02-05 15:53:47 +0000 | [diff] [blame] | 866 | } |
| 867 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 868 | NewRollback newRollback; |
| 869 | synchronized (mLock) { |
| 870 | // See if we already have a NewRollback that contains this package |
| 871 | // session. If not, create a NewRollback for the parent session |
| 872 | // that we will use for all the packages in the session. |
| 873 | newRollback = getNewRollbackForPackageSessionLocked(packageSession.getSessionId()); |
| 874 | if (newRollback == null) { |
| 875 | newRollback = createNewRollbackLocked(parentSession); |
| 876 | mNewRollbacks.add(newRollback); |
| 877 | } |
| 878 | } |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 879 | newRollback.addToken(token); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 880 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 881 | return enableRollbackForPackageSession(newRollback.rollback, packageSession); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 882 | } |
| 883 | |
| 884 | /** |
| 885 | * Do code and userdata backups to enable rollback of the given session. |
| 886 | * In case of multiPackage sessions, <code>session</code> should be one of |
| 887 | * the child sessions, not the parent session. |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 888 | * |
| 889 | * @return true on success, false on failure. |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 890 | */ |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 891 | private boolean enableRollbackForPackageSession(Rollback rollback, |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 892 | PackageInstaller.SessionInfo session) { |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 893 | // TODO: Don't attempt to enable rollback for split installs. |
| 894 | final int installFlags = session.installFlags; |
| 895 | if ((installFlags & PackageManager.INSTALL_ENABLE_ROLLBACK) == 0) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 896 | Slog.e(TAG, "Rollback is not enabled."); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 897 | return false; |
| 898 | } |
| 899 | if ((installFlags & PackageManager.INSTALL_INSTANT_APP) != 0) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 900 | Slog.e(TAG, "Rollbacks not supported for instant app install"); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 901 | return false; |
| 902 | } |
| 903 | |
Richard Uhler | fcad49a | 2019-03-13 10:18:46 +0000 | [diff] [blame] | 904 | if (session.resolvedBaseCodePath == null) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 905 | Slog.e(TAG, "Session code path has not been resolved."); |
Richard Uhler | fcad49a | 2019-03-13 10:18:46 +0000 | [diff] [blame] | 906 | return false; |
| 907 | } |
| 908 | |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 909 | // Get information about the package to be installed. |
| 910 | PackageParser.PackageLite newPackage = null; |
| 911 | try { |
| 912 | newPackage = PackageParser.parsePackageLite(new File(session.resolvedBaseCodePath), 0); |
| 913 | } catch (PackageParser.PackageParserException e) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 914 | Slog.e(TAG, "Unable to parse new package", e); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 915 | return false; |
| 916 | } |
| 917 | |
| 918 | String packageName = newPackage.packageName; |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 919 | Slog.i(TAG, "Enabling rollback for install of " + packageName |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 920 | + ", session:" + session.sessionId); |
Richard Uhler | f0bdca5 | 2019-01-31 16:43:59 +0000 | [diff] [blame] | 921 | |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 922 | String installerPackageName = session.getInstallerPackageName(); |
| 923 | if (!enableRollbackAllowed(installerPackageName, packageName)) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 924 | Slog.e(TAG, "Installer " + installerPackageName |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 925 | + " is not allowed to enable rollback on " + packageName); |
| 926 | return false; |
| 927 | } |
| 928 | |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 929 | VersionedPackage newVersion = new VersionedPackage(packageName, newPackage.versionCode); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 930 | final boolean isApex = ((installFlags & PackageManager.INSTALL_APEX) != 0); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 931 | |
| 932 | // Get information about the currently installed package. |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 933 | PackageManager pm = mContext.getPackageManager(); |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 934 | final PackageInfo pkgInfo; |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 935 | try { |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 936 | pkgInfo = getPackageInfo(packageName); |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 937 | } catch (PackageManager.NameNotFoundException e) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 938 | // TODO: Support rolling back fresh package installs rather than |
| 939 | // fail here. Test this case. |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 940 | Slog.e(TAG, packageName + " is not installed"); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 941 | return false; |
| 942 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 943 | |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 944 | VersionedPackage installedVersion = new VersionedPackage(packageName, |
| 945 | pkgInfo.getLongVersionCode()); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 946 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 947 | PackageRollbackInfo packageRollbackInfo = new PackageRollbackInfo( |
| 948 | newVersion, installedVersion, |
Nikita Ioffe | 5dcd1797 | 2019-02-04 11:08:13 +0000 | [diff] [blame] | 949 | new IntArray() /* pendingBackups */, new ArrayList<>() /* pendingRestores */, |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 950 | isApex, new IntArray(), new SparseLongArray() /* ceSnapshotInodes */); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 951 | |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 952 | try { |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 953 | ApplicationInfo appInfo = pkgInfo.applicationInfo; |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 954 | RollbackStore.backupPackageCodePath(rollback, packageName, appInfo.sourceDir); |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 955 | if (!ArrayUtils.isEmpty(appInfo.splitSourceDirs)) { |
| 956 | for (String sourceDir : appInfo.splitSourceDirs) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 957 | RollbackStore.backupPackageCodePath(rollback, packageName, sourceDir); |
Richard Uhler | ab009ea | 2019-02-25 12:11:05 +0000 | [diff] [blame] | 958 | } |
| 959 | } |
Richard Uhler | 1f571c6 | 2019-01-31 15:16:46 +0000 | [diff] [blame] | 960 | } catch (IOException e) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 961 | Slog.e(TAG, "Unable to copy package for rollback for " + packageName, e); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 962 | return false; |
| 963 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 964 | |
| 965 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 966 | rollback.info.getPackages().add(packageRollbackInfo); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 967 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 968 | return true; |
| 969 | } |
| 970 | |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 971 | @Override |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 972 | public void snapshotAndRestoreUserData(String packageName, int[] userIds, int appId, |
| 973 | long ceDataInode, String seInfo, int token) { |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 974 | if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 975 | throw new SecurityException( |
| 976 | "snapshotAndRestoreUserData may only be called by the system."); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 977 | } |
| 978 | |
| 979 | getHandler().post(() -> { |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 980 | snapshotUserDataInternal(packageName, userIds); |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 981 | restoreUserDataInternal(packageName, userIds, appId, ceDataInode, seInfo, token); |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 982 | final PackageManagerInternal pmi = LocalServices.getService( |
| 983 | PackageManagerInternal.class); |
Narayan Kamath | 869f706 | 2019-01-10 12:24:15 +0000 | [diff] [blame] | 984 | pmi.finishPackageInstall(token, false); |
| 985 | }); |
| 986 | } |
| 987 | |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 988 | private void snapshotUserDataInternal(String packageName, int[] userIds) { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 989 | synchronized (mLock) { |
| 990 | // staged installs |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 991 | for (int i = 0; i < mRollbacks.size(); i++) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 992 | Rollback rollback = mRollbacks.get(i); |
| 993 | if (rollback.state != Rollback.ROLLBACK_STATE_ENABLING) { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 994 | continue; |
| 995 | } |
| 996 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 997 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 998 | if (info.getPackageName().equals(packageName)) { |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 999 | mAppDataRollbackHelper.snapshotAppData( |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1000 | rollback.info.getRollbackId(), info, userIds); |
| 1001 | saveRollback(rollback); |
Gavin Corkery | 237dd81 | 2019-06-04 22:53:15 +0100 | [diff] [blame] | 1002 | break; |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1003 | } |
| 1004 | } |
| 1005 | } |
| 1006 | // non-staged installs |
| 1007 | PackageRollbackInfo info; |
| 1008 | for (NewRollback rollback : mNewRollbacks) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1009 | info = getPackageRollbackInfo(rollback.rollback, packageName); |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1010 | if (info != null) { |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 1011 | mAppDataRollbackHelper.snapshotAppData( |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1012 | rollback.rollback.info.getRollbackId(), info, userIds); |
| 1013 | saveRollback(rollback.rollback); |
Gavin Corkery | ab5ee41 | 2019-05-29 15:33:35 +0100 | [diff] [blame] | 1014 | } |
| 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1019 | private void restoreUserDataInternal(String packageName, int[] userIds, int appId, |
| 1020 | long ceDataInode, String seInfo, int token) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1021 | PackageRollbackInfo info = null; |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1022 | Rollback rollback = null; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1023 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1024 | for (int i = 0; i < mRollbacks.size(); ++i) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1025 | Rollback candidate = mRollbacks.get(i); |
| 1026 | if (candidate.restoreUserDataInProgress) { |
| 1027 | info = getPackageRollbackInfo(candidate, packageName); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1028 | if (info != null) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1029 | rollback = candidate; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1030 | break; |
| 1031 | } |
| 1032 | } |
| 1033 | } |
| 1034 | } |
| 1035 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1036 | if (rollback == null) { |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1037 | return; |
| 1038 | } |
| 1039 | |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1040 | for (int userId : userIds) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1041 | final boolean changedRollback = mAppDataRollbackHelper.restoreAppData( |
| 1042 | rollback.info.getRollbackId(), info, userId, appId, seInfo); |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1043 | |
| 1044 | // We've updated metadata about this rollback, so save it to flash. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1045 | if (changedRollback) { |
| 1046 | saveRollback(rollback); |
Richard Uhler | 38fab3f | 2019-02-22 16:53:10 +0000 | [diff] [blame] | 1047 | } |
| 1048 | } |
| 1049 | } |
| 1050 | |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1051 | @Override |
| 1052 | public boolean notifyStagedSession(int sessionId) { |
shafik | 3be41a9 | 2019-03-25 14:10:32 +0000 | [diff] [blame] | 1053 | if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
| 1054 | throw new SecurityException("notifyStagedSession may only be called by the system."); |
| 1055 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1056 | final LinkedBlockingQueue<Boolean> result = new LinkedBlockingQueue<>(); |
| 1057 | |
| 1058 | // NOTE: We post this runnable on the RollbackManager's binder thread because we'd prefer |
| 1059 | // to preserve the invariant that all operations that modify state happen there. |
| 1060 | getHandler().post(() -> { |
| 1061 | PackageInstaller installer = mContext.getPackageManager().getPackageInstaller(); |
| 1062 | |
| 1063 | final PackageInstaller.SessionInfo session = installer.getSessionInfo(sessionId); |
| 1064 | if (session == null) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1065 | Slog.e(TAG, "No matching install session for: " + sessionId); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1066 | result.offer(false); |
| 1067 | return; |
| 1068 | } |
| 1069 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1070 | NewRollback newRollback; |
| 1071 | synchronized (mLock) { |
| 1072 | newRollback = createNewRollbackLocked(session); |
| 1073 | } |
| 1074 | |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1075 | if (!session.isMultiPackage()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1076 | if (!enableRollbackForPackageSession(newRollback.rollback, session)) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1077 | Slog.e(TAG, "Unable to enable rollback for session: " + sessionId); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1078 | result.offer(false); |
| 1079 | return; |
| 1080 | } |
| 1081 | } else { |
| 1082 | for (int childSessionId : session.getChildSessionIds()) { |
| 1083 | final PackageInstaller.SessionInfo childSession = |
| 1084 | installer.getSessionInfo(childSessionId); |
| 1085 | if (childSession == null) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1086 | Slog.e(TAG, "No matching child install session for: " + childSessionId); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1087 | result.offer(false); |
| 1088 | return; |
| 1089 | } |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1090 | if (!enableRollbackForPackageSession(newRollback.rollback, childSession)) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1091 | Slog.e(TAG, "Unable to enable rollback for session: " + sessionId); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1092 | result.offer(false); |
| 1093 | return; |
| 1094 | } |
| 1095 | } |
| 1096 | } |
| 1097 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1098 | result.offer(completeEnableRollback(newRollback, true) != null); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1099 | }); |
| 1100 | |
| 1101 | try { |
| 1102 | return result.take(); |
| 1103 | } catch (InterruptedException ie) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1104 | Slog.e(TAG, "Interrupted while waiting for notifyStagedSession response"); |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1105 | return false; |
| 1106 | } |
| 1107 | } |
| 1108 | |
Richard Uhler | 6fa7d13 | 2019-02-05 13:55:11 +0000 | [diff] [blame] | 1109 | @Override |
| 1110 | public void notifyStagedApkSession(int originalSessionId, int apkSessionId) { |
shafik | 3be41a9 | 2019-03-25 14:10:32 +0000 | [diff] [blame] | 1111 | if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
| 1112 | throw new SecurityException("notifyStagedApkSession may only be called by the system."); |
| 1113 | } |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1114 | getHandler().post(() -> { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1115 | Rollback rollback = null; |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1116 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1117 | for (int i = 0; i < mRollbacks.size(); ++i) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1118 | Rollback candidate = mRollbacks.get(i); |
| 1119 | if (candidate.stagedSessionId == originalSessionId) { |
| 1120 | candidate.apkSessionId = apkSessionId; |
| 1121 | rollback = candidate; |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1122 | break; |
| 1123 | } |
| 1124 | } |
| 1125 | } |
| 1126 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1127 | if (rollback != null) { |
| 1128 | saveRollback(rollback); |
Richard Uhler | ba13ab2 | 2019-02-05 15:27:12 +0000 | [diff] [blame] | 1129 | } |
| 1130 | }); |
Richard Uhler | 6fa7d13 | 2019-02-05 13:55:11 +0000 | [diff] [blame] | 1131 | } |
| 1132 | |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1133 | /** |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 1134 | * Returns true if the installer is allowed to enable rollback for the |
| 1135 | * given named package, false otherwise. |
| 1136 | */ |
| 1137 | private boolean enableRollbackAllowed(String installerPackageName, String packageName) { |
| 1138 | if (installerPackageName == null) { |
| 1139 | return false; |
| 1140 | } |
| 1141 | |
| 1142 | PackageManager pm = mContext.getPackageManager(); |
| 1143 | boolean manageRollbacksGranted = pm.checkPermission( |
| 1144 | Manifest.permission.MANAGE_ROLLBACKS, |
| 1145 | installerPackageName) == PackageManager.PERMISSION_GRANTED; |
| 1146 | |
| 1147 | boolean testManageRollbacksGranted = pm.checkPermission( |
| 1148 | Manifest.permission.TEST_MANAGE_ROLLBACKS, |
| 1149 | installerPackageName) == PackageManager.PERMISSION_GRANTED; |
| 1150 | |
| 1151 | // For now only allow rollbacks for modules or for testing. |
| 1152 | return (isModule(packageName) && manageRollbacksGranted) |
| 1153 | || testManageRollbacksGranted; |
| 1154 | } |
| 1155 | |
| 1156 | /** |
| 1157 | * Returns true if the package name is the name of a module. |
| 1158 | */ |
| 1159 | private boolean isModule(String packageName) { |
| 1160 | PackageManager pm = mContext.getPackageManager(); |
| 1161 | final ModuleInfo moduleInfo; |
| 1162 | try { |
| 1163 | moduleInfo = pm.getModuleInfo(packageName, 0); |
| 1164 | } catch (PackageManager.NameNotFoundException e) { |
| 1165 | return false; |
| 1166 | } |
| 1167 | |
| 1168 | return moduleInfo != null; |
| 1169 | } |
| 1170 | |
| 1171 | /** |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1172 | * Gets the version of the package currently installed. |
| 1173 | * Returns null if the package is not currently installed. |
| 1174 | */ |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1175 | private VersionedPackage getInstalledPackageVersion(String packageName) { |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1176 | PackageManager pm = mContext.getPackageManager(); |
| 1177 | PackageInfo pkgInfo = null; |
| 1178 | try { |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 1179 | pkgInfo = getPackageInfo(packageName); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1180 | } catch (PackageManager.NameNotFoundException e) { |
| 1181 | return null; |
| 1182 | } |
| 1183 | |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1184 | return new VersionedPackage(packageName, pkgInfo.getLongVersionCode()); |
| 1185 | } |
| 1186 | |
Richard Uhler | 82913b7 | 2019-04-01 13:02:31 +0100 | [diff] [blame] | 1187 | /** |
| 1188 | * Gets PackageInfo for the given package. |
| 1189 | * Matches any user and apex. Returns null if no such package is |
| 1190 | * installed. |
| 1191 | */ |
| 1192 | private PackageInfo getPackageInfo(String packageName) |
| 1193 | throws PackageManager.NameNotFoundException { |
| 1194 | PackageManager pm = mContext.getPackageManager(); |
| 1195 | try { |
| 1196 | // The MATCH_ANY_USER flag doesn't mix well with the MATCH_APEX |
| 1197 | // flag, so make two separate attempts to get the package info. |
| 1198 | // We don't need both flags at the same time because we assume |
| 1199 | // apex files are always installed for all users. |
| 1200 | return pm.getPackageInfo(packageName, PackageManager.MATCH_ANY_USER); |
| 1201 | } catch (PackageManager.NameNotFoundException e) { |
| 1202 | return pm.getPackageInfo(packageName, PackageManager.MATCH_APEX); |
| 1203 | } |
| 1204 | } |
| 1205 | |
| 1206 | |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1207 | private boolean packageVersionsEqual(VersionedPackage a, VersionedPackage b) { |
Richard Uhler | b4bad06 | 2019-07-10 15:00:09 +0100 | [diff] [blame] | 1208 | return a != null && b != null |
| 1209 | && a.getPackageName().equals(b.getPackageName()) |
Richard Uhler | a7e9b2d | 2019-01-22 17:20:58 +0000 | [diff] [blame] | 1210 | && a.getLongVersionCode() == b.getLongVersionCode(); |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1211 | } |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 1212 | |
| 1213 | private class SessionCallback extends PackageInstaller.SessionCallback { |
| 1214 | |
| 1215 | @Override |
| 1216 | public void onCreated(int sessionId) { } |
| 1217 | |
| 1218 | @Override |
| 1219 | public void onBadgingChanged(int sessionId) { } |
| 1220 | |
| 1221 | @Override |
| 1222 | public void onActiveChanged(int sessionId, boolean active) { } |
| 1223 | |
| 1224 | @Override |
| 1225 | public void onProgressChanged(int sessionId, float progress) { } |
| 1226 | |
| 1227 | @Override |
| 1228 | public void onFinished(int sessionId, boolean success) { |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1229 | NewRollback newRollback; |
| 1230 | synchronized (mLock) { |
| 1231 | newRollback = getNewRollbackForPackageSessionLocked(sessionId); |
| 1232 | if (newRollback != null) { |
| 1233 | mNewRollbacks.remove(newRollback); |
| 1234 | } |
| 1235 | } |
| 1236 | |
| 1237 | if (newRollback != null) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1238 | Rollback rollback = completeEnableRollback(newRollback, success); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1239 | if (rollback != null && !rollback.isStaged()) { |
| 1240 | makeRollbackAvailable(rollback); |
| 1241 | } |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 1242 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1243 | } |
| 1244 | } |
Richard Uhler | 2d7c7f0d | 2019-01-04 09:18:21 +0000 | [diff] [blame] | 1245 | |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1246 | /** |
| 1247 | * Add a rollback to the list of rollbacks. |
| 1248 | * This should be called after rollback has been enabled for all packages |
| 1249 | * in the rollback. It does not make the rollback available yet. |
| 1250 | * |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1251 | * @return the Rollback instance for a successfully enable-completed rollback, |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1252 | * or null on error. |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1253 | */ |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1254 | private Rollback completeEnableRollback(NewRollback newRollback, boolean success) { |
| 1255 | Rollback rollback = newRollback.rollback; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1256 | if (!success) { |
| 1257 | // The install session was aborted, clean up the pending install. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1258 | deleteRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1259 | return null; |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1260 | } |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1261 | if (newRollback.isCancelled) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1262 | Slog.e(TAG, "Rollback has been cancelled by PackageManager"); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1263 | deleteRollback(rollback); |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1264 | return null; |
| 1265 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1266 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1267 | // It's safe to access rollback.info outside a synchronized block because |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1268 | // this is running on the handler thread and all changes to the |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1269 | // rollback.info occur on the handler thread. |
| 1270 | if (rollback.info.getPackages().size() != newRollback.packageSessionIds.length) { |
shafik | 7ad5775 | 2019-06-05 14:59:57 +0100 | [diff] [blame] | 1271 | Slog.e(TAG, "Failed to enable rollback for all packages in session."); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1272 | deleteRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1273 | return null; |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1274 | } |
Narayan Kamath | fcd4a04 | 2019-02-01 14:16:37 +0000 | [diff] [blame] | 1275 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1276 | saveRollback(rollback); |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1277 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1278 | // Note: There is a small window of time between when |
| 1279 | // the session has been committed by the package |
| 1280 | // manager and when we make the rollback available |
| 1281 | // here. Presumably the window is small enough that |
| 1282 | // nobody will want to roll back the newly installed |
| 1283 | // package before we make the rollback available. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1284 | // TODO: We'll lose the rollback if the |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1285 | // device reboots between when the session is |
| 1286 | // committed and this point. Revisit this after |
| 1287 | // adding support for rollback of staged installs. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1288 | mRollbacks.add(rollback); |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1289 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1290 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1291 | return rollback; |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1292 | } |
| 1293 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1294 | private void makeRollbackAvailable(Rollback rollback) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1295 | // TODO: What if the rollback has since been expired, for example due |
| 1296 | // to a new package being installed. Won't this revive an expired |
| 1297 | // rollback? Consider adding a ROLLBACK_STATE_EXPIRED to address this. |
| 1298 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1299 | rollback.state = Rollback.ROLLBACK_STATE_AVAILABLE; |
| 1300 | rollback.timestamp = Instant.now(); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1301 | } |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1302 | saveRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1303 | |
| 1304 | // TODO(zezeozue): Provide API to explicitly start observing instead |
| 1305 | // of doing this for all rollbacks. If we do this for all rollbacks, |
| 1306 | // should document in PackageInstaller.SessionParams#setEnableRollback |
| 1307 | // After enabling and commiting any rollback, observe packages and |
| 1308 | // prepare to rollback if packages crashes too frequently. |
| 1309 | List<String> packages = new ArrayList<>(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1310 | for (int i = 0; i < rollback.info.getPackages().size(); i++) { |
| 1311 | packages.add(rollback.info.getPackages().get(i).getPackageName()); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1312 | } |
| 1313 | mPackageHealthObserver.startObservingHealth(packages, |
| 1314 | mRollbackLifetimeDurationInMillis); |
| 1315 | scheduleExpiration(mRollbackLifetimeDurationInMillis); |
Richard Uhler | 035e974 | 2019-01-09 13:11:07 +0000 | [diff] [blame] | 1316 | } |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1317 | |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1318 | /* |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1319 | * Returns the rollback with the given rollbackId, if any. |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1320 | */ |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1321 | private Rollback getRollbackForId(int rollbackId) { |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1322 | synchronized (mLock) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1323 | for (int i = 0; i < mRollbacks.size(); ++i) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1324 | Rollback rollback = mRollbacks.get(i); |
| 1325 | if (rollback.info.getRollbackId() == rollbackId) { |
| 1326 | return rollback; |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1327 | } |
| 1328 | } |
| 1329 | } |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1330 | |
| 1331 | return null; |
| 1332 | } |
| 1333 | |
| 1334 | /** |
| 1335 | * Returns the {@code PackageRollbackInfo} associated with {@code packageName} from |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1336 | * a specified {@code Rollback}. |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1337 | */ |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1338 | private static PackageRollbackInfo getPackageRollbackInfo(Rollback rollback, |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1339 | String packageName) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1340 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Narayan Kamath | c034fe9 | 2019-01-23 10:48:17 +0000 | [diff] [blame] | 1341 | if (info.getPackageName().equals(packageName)) { |
| 1342 | return info; |
| 1343 | } |
| 1344 | } |
| 1345 | |
Richard Uhler | 0a79b32 | 2019-01-23 13:51:07 +0000 | [diff] [blame] | 1346 | return null; |
| 1347 | } |
| 1348 | |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1349 | @GuardedBy("mLock") |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1350 | private int allocateRollbackIdLocked() { |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1351 | int n = 0; |
| 1352 | int rollbackId; |
| 1353 | do { |
| 1354 | rollbackId = mRandom.nextInt(Integer.MAX_VALUE - 1) + 1; |
| 1355 | if (!mAllocatedRollbackIds.get(rollbackId, false)) { |
| 1356 | mAllocatedRollbackIds.put(rollbackId, true); |
| 1357 | return rollbackId; |
| 1358 | } |
| 1359 | } while (n++ < 32); |
| 1360 | |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1361 | throw new IllegalStateException("Failed to allocate rollback ID"); |
Richard Uhler | b9d5447 | 2019-01-22 12:50:08 +0000 | [diff] [blame] | 1362 | } |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1363 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1364 | private void deleteRollback(Rollback rollback) { |
| 1365 | for (PackageRollbackInfo info : rollback.info.getPackages()) { |
Oli Lan | 87a504d | 2019-08-09 10:25:49 +0100 | [diff] [blame] | 1366 | IntArray snapshottedUsers = info.getSnapshottedUsers(); |
| 1367 | for (int i = 0; i < snapshottedUsers.size(); i++) { |
| 1368 | int userId = snapshottedUsers.get(i); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1369 | mAppDataRollbackHelper.destroyAppDataSnapshot(rollback.info.getRollbackId(), |
Richard Uhler | cca637a | 2019-02-27 11:50:48 +0000 | [diff] [blame] | 1370 | info, userId); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1371 | } |
| 1372 | } |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1373 | mRollbackStore.deleteRollback(rollback); |
Nikita Ioffe | 952aa7b | 2019-01-28 19:49:56 +0000 | [diff] [blame] | 1374 | } |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1375 | |
| 1376 | /** |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1377 | * Saves a rollback, swallowing any IOExceptions. |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1378 | * For those times when it's not obvious what to do about the IOException. |
| 1379 | * TODO: Double check we can't do a better job handling the IOException in |
| 1380 | * a cases where this method is called. |
| 1381 | */ |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1382 | private void saveRollback(Rollback rollback) { |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1383 | try { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1384 | mRollbackStore.saveRollback(rollback); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1385 | } catch (IOException ioe) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1386 | Slog.e(TAG, "Unable to save rollback for: " |
| 1387 | + rollback.info.getRollbackId(), ioe); |
Richard Uhler | 6f8a33b | 2019-02-26 10:40:36 +0000 | [diff] [blame] | 1388 | } |
| 1389 | } |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 1390 | |
| 1391 | @Override |
| 1392 | protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 1393 | IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " "); |
| 1394 | synchronized (mLock) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1395 | for (Rollback rollback : mRollbacks) { |
| 1396 | RollbackInfo info = rollback.info; |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 1397 | ipw.println(info.getRollbackId() + ":"); |
| 1398 | ipw.increaseIndent(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1399 | ipw.println("-state: " + rollback.getStateAsString()); |
| 1400 | ipw.println("-timestamp: " + rollback.timestamp); |
| 1401 | if (rollback.stagedSessionId != -1) { |
| 1402 | ipw.println("-stagedSessionId: " + rollback.stagedSessionId); |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 1403 | } |
| 1404 | ipw.println("-packages:"); |
| 1405 | ipw.increaseIndent(); |
| 1406 | for (PackageRollbackInfo pkg : info.getPackages()) { |
| 1407 | ipw.println(pkg.getPackageName() |
| 1408 | + " " + pkg.getVersionRolledBackFrom().getLongVersionCode() |
| 1409 | + " -> " + pkg.getVersionRolledBackTo().getLongVersionCode()); |
| 1410 | } |
| 1411 | ipw.decreaseIndent(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1412 | if (rollback.state == Rollback.ROLLBACK_STATE_COMMITTED) { |
shafik | 6004600 | 2019-03-12 17:54:10 +0000 | [diff] [blame] | 1413 | ipw.println("-causePackages:"); |
| 1414 | ipw.increaseIndent(); |
| 1415 | for (VersionedPackage cPkg : info.getCausePackages()) { |
| 1416 | ipw.println(cPkg.getPackageName() + " " + cPkg.getLongVersionCode()); |
| 1417 | } |
| 1418 | ipw.decreaseIndent(); |
| 1419 | ipw.println("-committedSessionId: " + info.getCommittedSessionId()); |
| 1420 | } |
| 1421 | ipw.decreaseIndent(); |
| 1422 | } |
| 1423 | } |
| 1424 | } |
Richard Uhler | 1fc10c1 | 2019-03-18 11:38:46 +0000 | [diff] [blame] | 1425 | |
| 1426 | private void enforceManageRollbacks(@NonNull String message) { |
| 1427 | if ((PackageManager.PERMISSION_GRANTED != mContext.checkCallingOrSelfPermission( |
| 1428 | Manifest.permission.MANAGE_ROLLBACKS)) |
| 1429 | && (PackageManager.PERMISSION_GRANTED != mContext.checkCallingOrSelfPermission( |
| 1430 | Manifest.permission.TEST_MANAGE_ROLLBACKS))) { |
| 1431 | throw new SecurityException(message + " requires " |
| 1432 | + Manifest.permission.MANAGE_ROLLBACKS + " or " |
| 1433 | + Manifest.permission.TEST_MANAGE_ROLLBACKS); |
| 1434 | } |
| 1435 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1436 | |
| 1437 | private static class NewRollback { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1438 | public final Rollback rollback; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1439 | |
| 1440 | /** |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1441 | * This array holds all of the rollback tokens associated with package sessions included |
| 1442 | * in this rollback. This is used to identify which rollback should be cancelled in case |
| 1443 | * {@link PackageManager} sends an {@link Intent#ACTION_CANCEL_ENABLE_ROLLBACK} intent. |
| 1444 | */ |
| 1445 | private final IntArray mTokens = new IntArray(); |
| 1446 | |
| 1447 | /** |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1448 | * Session ids for all packages in the install. |
| 1449 | * For multi-package sessions, this is the list of child session ids. |
| 1450 | * For normal sessions, this list is a single element with the normal |
| 1451 | * session id. |
| 1452 | */ |
| 1453 | public final int[] packageSessionIds; |
| 1454 | |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1455 | /** |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1456 | * Flag to determine whether the rollback has been cancelled. |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1457 | * |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1458 | * <p>Rollback could be invalidated and cancelled if RollbackManager receives |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1459 | * {@link Intent#ACTION_CANCEL_ENABLE_ROLLBACK} from {@link PackageManager}. |
| 1460 | * |
| 1461 | * <p>The main underlying assumption here is that if enabling the rollback times out, then |
| 1462 | * {@link PackageManager} will NOT send |
| 1463 | * {@link PackageInstaller.SessionCallback#onFinished(int, boolean)} before it broadcasts |
| 1464 | * {@link Intent#ACTION_CANCEL_ENABLE_ROLLBACK}. |
| 1465 | */ |
| 1466 | public boolean isCancelled = false; |
| 1467 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1468 | NewRollback(Rollback rollback, int[] packageSessionIds) { |
| 1469 | this.rollback = rollback; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1470 | this.packageSessionIds = packageSessionIds; |
| 1471 | } |
shafik | 4831ad7 | 2019-05-03 17:36:42 +0100 | [diff] [blame] | 1472 | |
| 1473 | public void addToken(int token) { |
| 1474 | mTokens.add(token); |
| 1475 | } |
| 1476 | |
| 1477 | public boolean hasToken(int token) { |
| 1478 | return mTokens.indexOf(token) != -1; |
| 1479 | } |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1480 | } |
| 1481 | |
| 1482 | NewRollback createNewRollbackLocked(PackageInstaller.SessionInfo parentSession) { |
| 1483 | int rollbackId = allocateRollbackIdLocked(); |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1484 | final Rollback rollback; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1485 | int parentSessionId = parentSession.getSessionId(); |
| 1486 | |
| 1487 | if (parentSession.isStaged()) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1488 | rollback = mRollbackStore.createStagedRollback(rollbackId, parentSessionId); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1489 | } else { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1490 | rollback = mRollbackStore.createNonStagedRollback(rollbackId); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1491 | } |
| 1492 | |
| 1493 | int[] packageSessionIds; |
| 1494 | if (parentSession.isMultiPackage()) { |
| 1495 | packageSessionIds = parentSession.getChildSessionIds(); |
| 1496 | } else { |
| 1497 | packageSessionIds = new int[]{parentSessionId}; |
| 1498 | } |
| 1499 | |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1500 | return new NewRollback(rollback, packageSessionIds); |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1501 | } |
| 1502 | |
| 1503 | /** |
| 1504 | * Returns the NewRollback associated with the given package session. |
| 1505 | * Returns null if no NewRollback is found for the given package |
| 1506 | * session. |
| 1507 | */ |
| 1508 | NewRollback getNewRollbackForPackageSessionLocked(int packageSessionId) { |
| 1509 | // We expect mNewRollbacks to be a very small list; linear search |
| 1510 | // should be plenty fast. |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1511 | for (NewRollback newRollback: mNewRollbacks) { |
| 1512 | for (int id : newRollback.packageSessionIds) { |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1513 | if (id == packageSessionId) { |
Richard Uhler | 91fc4db | 2019-07-19 14:55:01 +0100 | [diff] [blame] | 1514 | return newRollback; |
Richard Uhler | 4756970 | 2019-05-02 12:36:39 +0100 | [diff] [blame] | 1515 | } |
| 1516 | } |
| 1517 | } |
| 1518 | return null; |
| 1519 | } |
Richard Uhler | e95d055 | 2018-12-27 15:03:41 +0000 | [diff] [blame] | 1520 | } |