Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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.pm; |
| 18 | |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 19 | import static android.os.ParcelFileDescriptor.MODE_CREATE; |
| 20 | import static android.os.ParcelFileDescriptor.MODE_READ_WRITE; |
| 21 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 22 | import com.android.internal.util.ArrayUtils; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 23 | import com.android.internal.util.FastXmlSerializer; |
| 24 | |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 25 | import android.app.ActivityManager; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 26 | import android.content.Context; |
| 27 | import android.content.Intent; |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 28 | import android.content.pm.PackageManager; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 29 | import android.content.pm.UserInfo; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 30 | import android.os.Binder; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 31 | import android.os.Environment; |
| 32 | import android.os.FileUtils; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 33 | import android.os.IUserManager; |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 34 | import android.os.ParcelFileDescriptor; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 35 | import android.os.Process; |
Dianne Hackborn | f02b60a | 2012-08-16 10:48:27 -0700 | [diff] [blame] | 36 | import android.os.UserHandle; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 37 | import android.util.AtomicFile; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 38 | import android.util.Slog; |
| 39 | import android.util.SparseArray; |
| 40 | import android.util.Xml; |
| 41 | |
| 42 | import java.io.BufferedOutputStream; |
| 43 | import java.io.File; |
| 44 | import java.io.FileInputStream; |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 45 | import java.io.FileNotFoundException; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 46 | import java.io.FileOutputStream; |
| 47 | import java.io.IOException; |
| 48 | import java.util.ArrayList; |
| 49 | import java.util.List; |
| 50 | |
| 51 | import org.xmlpull.v1.XmlPullParser; |
| 52 | import org.xmlpull.v1.XmlPullParserException; |
| 53 | import org.xmlpull.v1.XmlSerializer; |
| 54 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 55 | public class UserManagerService extends IUserManager.Stub { |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 56 | |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 57 | private static final String LOG_TAG = "UserManagerService"; |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 58 | |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 59 | private static final String TAG_NAME = "name"; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 60 | private static final String ATTR_FLAGS = "flags"; |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 61 | private static final String ATTR_ICON_PATH = "icon"; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 62 | private static final String ATTR_ID = "id"; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 63 | private static final String ATTR_SERIAL_NO = "serialNumber"; |
| 64 | private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 65 | private static final String TAG_USERS = "users"; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 66 | private static final String TAG_USER = "user"; |
| 67 | |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 68 | private static final String USER_INFO_DIR = "system" + File.separator + "users"; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 69 | private static final String USER_LIST_FILENAME = "userlist.xml"; |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 70 | private static final String USER_PHOTO_FILENAME = "photo.png"; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 71 | |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 72 | private final Context mContext; |
| 73 | private final PackageManagerService mPm; |
| 74 | private final Object mInstallLock; |
| 75 | private final Object mPackagesLock; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 76 | |
| 77 | private final File mUsersDir; |
| 78 | private final File mUserListFile; |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 79 | private final File mBaseUserPath; |
| 80 | |
| 81 | private SparseArray<UserInfo> mUsers = new SparseArray<UserInfo>(); |
| 82 | |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 83 | private int[] mUserIds; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 84 | private boolean mGuestEnabled; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 85 | private int mNextSerialNumber; |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 86 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 87 | private static UserManagerService sInstance; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 88 | |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 89 | public static UserManagerService getInstance() { |
| 90 | synchronized (UserManagerService.class) { |
| 91 | return sInstance; |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 92 | } |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 93 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 94 | |
| 95 | /** |
| 96 | * Available for testing purposes. |
| 97 | */ |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 98 | UserManagerService(File dataDir, File baseUserPath) { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 99 | this(null, null, new Object(), new Object(), dataDir, baseUserPath); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 100 | } |
| 101 | |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 102 | /** |
| 103 | * Called by package manager to create the service. This is closely |
| 104 | * associated with the package manager, and the given lock is the |
| 105 | * package manager's own lock. |
| 106 | */ |
| 107 | UserManagerService(Context context, PackageManagerService pm, |
| 108 | Object installLock, Object packagesLock) { |
| 109 | this(context, pm, installLock, packagesLock, |
| 110 | Environment.getDataDirectory(), |
| 111 | new File(Environment.getDataDirectory(), "user")); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 112 | } |
| 113 | |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 114 | /** |
| 115 | * Available for testing purposes. |
| 116 | */ |
| 117 | private UserManagerService(Context context, PackageManagerService pm, |
| 118 | Object installLock, Object packagesLock, |
| 119 | File dataDir, File baseUserPath) { |
| 120 | synchronized (UserManagerService.class) { |
| 121 | mContext = context; |
| 122 | mPm = pm; |
| 123 | mInstallLock = installLock; |
| 124 | mPackagesLock = packagesLock; |
| 125 | mUsersDir = new File(dataDir, USER_INFO_DIR); |
| 126 | mUsersDir.mkdirs(); |
| 127 | // Make zeroth user directory, for services to migrate their files to that location |
| 128 | File userZeroDir = new File(mUsersDir, "0"); |
| 129 | userZeroDir.mkdirs(); |
| 130 | mBaseUserPath = baseUserPath; |
| 131 | FileUtils.setPermissions(mUsersDir.toString(), |
| 132 | FileUtils.S_IRWXU|FileUtils.S_IRWXG |
| 133 | |FileUtils.S_IROTH|FileUtils.S_IXOTH, |
| 134 | -1, -1); |
| 135 | mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); |
| 136 | readUserList(); |
| 137 | sInstance = this; |
| 138 | } |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | @Override |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 142 | public List<UserInfo> getUsers() { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 143 | checkManageUsersPermission("query users"); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 144 | synchronized (mPackagesLock) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 145 | ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); |
| 146 | for (int i = 0; i < mUsers.size(); i++) { |
| 147 | users.add(mUsers.valueAt(i)); |
| 148 | } |
| 149 | return users; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 150 | } |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 151 | } |
| 152 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 153 | @Override |
| 154 | public UserInfo getUserInfo(int userId) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 155 | checkManageUsersPermission("query user"); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 156 | synchronized (mPackagesLock) { |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 157 | return getUserInfoLocked(userId); |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 158 | } |
| 159 | } |
| 160 | |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 161 | /* |
| 162 | * Should be locked on mUsers before calling this. |
| 163 | */ |
| 164 | private UserInfo getUserInfoLocked(int userId) { |
| 165 | return mUsers.get(userId); |
| 166 | } |
| 167 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 168 | public boolean exists(int userId) { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 169 | synchronized (mPackagesLock) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 170 | return ArrayUtils.contains(mUserIds, userId); |
| 171 | } |
| 172 | } |
| 173 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 174 | @Override |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 175 | public void setUserName(int userId, String name) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 176 | checkManageUsersPermission("rename users"); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 177 | synchronized (mPackagesLock) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 178 | UserInfo info = mUsers.get(userId); |
| 179 | if (name != null && !name.equals(info.name)) { |
| 180 | info.name = name; |
| 181 | writeUserLocked(info); |
| 182 | } |
| 183 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 184 | } |
| 185 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 186 | @Override |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 187 | public ParcelFileDescriptor setUserIcon(int userId) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 188 | checkManageUsersPermission("update users"); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 189 | synchronized (mPackagesLock) { |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 190 | UserInfo info = mUsers.get(userId); |
| 191 | if (info == null) return null; |
| 192 | ParcelFileDescriptor fd = updateIconBitmapLocked(info); |
| 193 | if (fd != null) { |
| 194 | writeUserLocked(info); |
| 195 | } |
| 196 | return fd; |
| 197 | } |
| 198 | } |
| 199 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 200 | @Override |
| 201 | public void setGuestEnabled(boolean enable) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 202 | checkManageUsersPermission("enable guest users"); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 203 | synchronized (mPackagesLock) { |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 204 | if (mGuestEnabled != enable) { |
| 205 | mGuestEnabled = enable; |
| 206 | // Erase any guest user that currently exists |
| 207 | for (int i = 0; i < mUsers.size(); i++) { |
| 208 | UserInfo user = mUsers.valueAt(i); |
| 209 | if (user.isGuest()) { |
| 210 | if (!enable) { |
| 211 | removeUser(user.id); |
| 212 | } |
| 213 | return; |
| 214 | } |
| 215 | } |
| 216 | // No guest was found |
| 217 | if (enable) { |
| 218 | createUser("Guest", UserInfo.FLAG_GUEST); |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | @Override |
| 225 | public boolean isGuestEnabled() { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 226 | synchronized (mPackagesLock) { |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 227 | return mGuestEnabled; |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | @Override |
| 232 | public void wipeUser(int userHandle) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 233 | checkManageUsersPermission("wipe user"); |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 234 | // TODO: |
| 235 | } |
| 236 | |
| 237 | /** |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 238 | * Enforces that only the system UID or root's UID or apps that have the |
| 239 | * {@link android.Manifest.permission.MANAGE_USERS MANAGE_USERS} |
| 240 | * permission can make certain calls to the UserManager. |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 241 | * |
| 242 | * @param message used as message if SecurityException is thrown |
| 243 | * @throws SecurityException if the caller is not system or root |
| 244 | */ |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 245 | private static final void checkManageUsersPermission(String message) { |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 246 | final int uid = Binder.getCallingUid(); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 247 | if (uid != Process.SYSTEM_UID && uid != 0 |
| 248 | && ActivityManager.checkComponentPermission( |
| 249 | android.Manifest.permission.MANAGE_USERS, |
| 250 | uid, -1, true) != PackageManager.PERMISSION_GRANTED) { |
| 251 | throw new SecurityException("You need MANAGE_USERS permission to: " + message); |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 252 | } |
| 253 | } |
| 254 | |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 255 | private ParcelFileDescriptor updateIconBitmapLocked(UserInfo info) { |
| 256 | try { |
| 257 | File dir = new File(mUsersDir, Integer.toString(info.id)); |
| 258 | File file = new File(dir, USER_PHOTO_FILENAME); |
| 259 | if (!dir.exists()) { |
| 260 | dir.mkdir(); |
| 261 | FileUtils.setPermissions( |
| 262 | dir.getPath(), |
| 263 | FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, |
| 264 | -1, -1); |
| 265 | } |
| 266 | ParcelFileDescriptor fd = ParcelFileDescriptor.open(file, |
| 267 | MODE_CREATE|MODE_READ_WRITE); |
| 268 | info.iconPath = file.getAbsolutePath(); |
| 269 | return fd; |
| 270 | } catch (FileNotFoundException e) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 271 | Slog.w(LOG_TAG, "Error setting photo for user ", e); |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 272 | } |
| 273 | return null; |
| 274 | } |
| 275 | |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 276 | /** |
| 277 | * Returns an array of user ids. This array is cached here for quick access, so do not modify or |
| 278 | * cache it elsewhere. |
| 279 | * @return the array of user ids. |
| 280 | */ |
| 281 | int[] getUserIds() { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 282 | synchronized (mPackagesLock) { |
Dianne Hackborn | 7767eac | 2012-08-23 18:25:40 -0700 | [diff] [blame] | 283 | return mUserIds; |
| 284 | } |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 285 | } |
| 286 | |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 287 | int[] getUserIdsLPr() { |
| 288 | return mUserIds; |
| 289 | } |
| 290 | |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 291 | private void readUserList() { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 292 | synchronized (mPackagesLock) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 293 | readUserListLocked(); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | private void readUserListLocked() { |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 298 | mGuestEnabled = false; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 299 | if (!mUserListFile.exists()) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 300 | fallbackToSingleUserLocked(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 301 | return; |
| 302 | } |
| 303 | FileInputStream fis = null; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 304 | AtomicFile userListFile = new AtomicFile(mUserListFile); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 305 | try { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 306 | fis = userListFile.openRead(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 307 | XmlPullParser parser = Xml.newPullParser(); |
| 308 | parser.setInput(fis, null); |
| 309 | int type; |
| 310 | while ((type = parser.next()) != XmlPullParser.START_TAG |
| 311 | && type != XmlPullParser.END_DOCUMENT) { |
| 312 | ; |
| 313 | } |
| 314 | |
| 315 | if (type != XmlPullParser.START_TAG) { |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 316 | Slog.e(LOG_TAG, "Unable to read user list"); |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 317 | fallbackToSingleUserLocked(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 318 | return; |
| 319 | } |
| 320 | |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 321 | mNextSerialNumber = -1; |
| 322 | if (parser.getName().equals(TAG_USERS)) { |
| 323 | String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); |
| 324 | if (lastSerialNumber != null) { |
| 325 | mNextSerialNumber = Integer.parseInt(lastSerialNumber); |
| 326 | } |
| 327 | } |
| 328 | |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 329 | while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| 330 | if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { |
| 331 | String id = parser.getAttributeValue(null, ATTR_ID); |
| 332 | UserInfo user = readUser(Integer.parseInt(id)); |
| 333 | if (user != null) { |
| 334 | mUsers.put(user.id, user); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 335 | if (user.isGuest()) { |
| 336 | mGuestEnabled = true; |
| 337 | } |
| 338 | if (mNextSerialNumber < 0 || mNextSerialNumber <= user.id) { |
| 339 | mNextSerialNumber = user.id + 1; |
| 340 | } |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 341 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 342 | } |
| 343 | } |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 344 | updateUserIdsLocked(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 345 | } catch (IOException ioe) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 346 | fallbackToSingleUserLocked(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 347 | } catch (XmlPullParserException pe) { |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 348 | fallbackToSingleUserLocked(); |
Dianne Hackborn | bfd89b3 | 2011-12-15 18:22:54 -0800 | [diff] [blame] | 349 | } finally { |
| 350 | if (fis != null) { |
| 351 | try { |
| 352 | fis.close(); |
| 353 | } catch (IOException e) { |
| 354 | } |
| 355 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 356 | } |
| 357 | } |
| 358 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 359 | private void fallbackToSingleUserLocked() { |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 360 | // Create the primary user |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 361 | UserInfo primary = new UserInfo(0, "Primary", null, |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 362 | UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY); |
| 363 | mUsers.put(0, primary); |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 364 | updateUserIdsLocked(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 365 | |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 366 | writeUserListLocked(); |
| 367 | writeUserLocked(primary); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 368 | } |
| 369 | |
| 370 | /* |
| 371 | * Writes the user file in this format: |
| 372 | * |
| 373 | * <user flags="20039023" id="0"> |
| 374 | * <name>Primary</name> |
| 375 | * </user> |
| 376 | */ |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 377 | private void writeUserLocked(UserInfo userInfo) { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 378 | FileOutputStream fos = null; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 379 | AtomicFile userFile = new AtomicFile(new File(mUsersDir, userInfo.id + ".xml")); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 380 | try { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 381 | fos = userFile.startWrite(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 382 | final BufferedOutputStream bos = new BufferedOutputStream(fos); |
| 383 | |
| 384 | // XmlSerializer serializer = XmlUtils.serializerInstance(); |
| 385 | final XmlSerializer serializer = new FastXmlSerializer(); |
| 386 | serializer.setOutput(bos, "utf-8"); |
| 387 | serializer.startDocument(null, true); |
| 388 | serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| 389 | |
| 390 | serializer.startTag(null, TAG_USER); |
| 391 | serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 392 | serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 393 | serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 394 | if (userInfo.iconPath != null) { |
| 395 | serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); |
| 396 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 397 | |
| 398 | serializer.startTag(null, TAG_NAME); |
| 399 | serializer.text(userInfo.name); |
| 400 | serializer.endTag(null, TAG_NAME); |
| 401 | |
| 402 | serializer.endTag(null, TAG_USER); |
| 403 | |
| 404 | serializer.endDocument(); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 405 | userFile.finishWrite(fos); |
| 406 | } catch (Exception ioe) { |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 407 | Slog.e(LOG_TAG, "Error writing user info " + userInfo.id + "\n" + ioe); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 408 | userFile.failWrite(fos); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 409 | } |
| 410 | } |
| 411 | |
| 412 | /* |
| 413 | * Writes the user list file in this format: |
| 414 | * |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 415 | * <users nextSerialNumber="3"> |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 416 | * <user id="0"></user> |
| 417 | * <user id="2"></user> |
| 418 | * </users> |
| 419 | */ |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 420 | private void writeUserListLocked() { |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 421 | FileOutputStream fos = null; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 422 | AtomicFile userListFile = new AtomicFile(mUserListFile); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 423 | try { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 424 | fos = userListFile.startWrite(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 425 | final BufferedOutputStream bos = new BufferedOutputStream(fos); |
| 426 | |
| 427 | // XmlSerializer serializer = XmlUtils.serializerInstance(); |
| 428 | final XmlSerializer serializer = new FastXmlSerializer(); |
| 429 | serializer.setOutput(bos, "utf-8"); |
| 430 | serializer.startDocument(null, true); |
| 431 | serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| 432 | |
| 433 | serializer.startTag(null, TAG_USERS); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 434 | serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 435 | |
| 436 | for (int i = 0; i < mUsers.size(); i++) { |
| 437 | UserInfo user = mUsers.valueAt(i); |
| 438 | serializer.startTag(null, TAG_USER); |
| 439 | serializer.attribute(null, ATTR_ID, Integer.toString(user.id)); |
| 440 | serializer.endTag(null, TAG_USER); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | serializer.endTag(null, TAG_USERS); |
| 444 | |
| 445 | serializer.endDocument(); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 446 | userListFile.finishWrite(fos); |
| 447 | } catch (Exception e) { |
| 448 | userListFile.failWrite(fos); |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 449 | Slog.e(LOG_TAG, "Error writing user list"); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 450 | } |
| 451 | } |
| 452 | |
| 453 | private UserInfo readUser(int id) { |
| 454 | int flags = 0; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 455 | int serialNumber = id; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 456 | String name = null; |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 457 | String iconPath = null; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 458 | |
| 459 | FileInputStream fis = null; |
| 460 | try { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 461 | AtomicFile userFile = |
| 462 | new AtomicFile(new File(mUsersDir, Integer.toString(id) + ".xml")); |
| 463 | fis = userFile.openRead(); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 464 | XmlPullParser parser = Xml.newPullParser(); |
| 465 | parser.setInput(fis, null); |
| 466 | int type; |
| 467 | while ((type = parser.next()) != XmlPullParser.START_TAG |
| 468 | && type != XmlPullParser.END_DOCUMENT) { |
| 469 | ; |
| 470 | } |
| 471 | |
| 472 | if (type != XmlPullParser.START_TAG) { |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 473 | Slog.e(LOG_TAG, "Unable to read user " + id); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 474 | return null; |
| 475 | } |
| 476 | |
| 477 | if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { |
| 478 | String storedId = parser.getAttributeValue(null, ATTR_ID); |
| 479 | if (Integer.parseInt(storedId) != id) { |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 480 | Slog.e(LOG_TAG, "User id does not match the file name"); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 481 | return null; |
| 482 | } |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 483 | String serialNumberValue = parser.getAttributeValue(null, ATTR_SERIAL_NO); |
| 484 | if (serialNumberValue != null) { |
| 485 | serialNumber = Integer.parseInt(serialNumberValue); |
| 486 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 487 | String flagString = parser.getAttributeValue(null, ATTR_FLAGS); |
| 488 | flags = Integer.parseInt(flagString); |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 489 | iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 490 | |
| 491 | while ((type = parser.next()) != XmlPullParser.START_TAG |
| 492 | && type != XmlPullParser.END_DOCUMENT) { |
| 493 | } |
| 494 | if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_NAME)) { |
| 495 | type = parser.next(); |
| 496 | if (type == XmlPullParser.TEXT) { |
| 497 | name = parser.getText(); |
| 498 | } |
| 499 | } |
| 500 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 501 | |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 502 | UserInfo userInfo = new UserInfo(id, name, iconPath, flags); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 503 | userInfo.serialNumber = serialNumber; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 504 | return userInfo; |
| 505 | |
| 506 | } catch (IOException ioe) { |
| 507 | } catch (XmlPullParserException pe) { |
Dianne Hackborn | bfd89b3 | 2011-12-15 18:22:54 -0800 | [diff] [blame] | 508 | } finally { |
| 509 | if (fis != null) { |
| 510 | try { |
| 511 | fis.close(); |
| 512 | } catch (IOException e) { |
| 513 | } |
| 514 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 515 | } |
| 516 | return null; |
| 517 | } |
| 518 | |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 519 | @Override |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 520 | public UserInfo createUser(String name, int flags) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 521 | checkManageUsersPermission("Only the system can create users"); |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 522 | int userId = getNextAvailableId(); |
Amith Yamasani | b8151ec | 2012-04-18 18:02:48 -0700 | [diff] [blame] | 523 | UserInfo userInfo = new UserInfo(userId, name, null, flags); |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 524 | File userPath = new File(mBaseUserPath, Integer.toString(userId)); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 525 | synchronized (mInstallLock) { |
| 526 | synchronized (mPackagesLock) { |
| 527 | userInfo.serialNumber = mNextSerialNumber++; |
| 528 | mUsers.put(userId, userInfo); |
| 529 | writeUserListLocked(); |
| 530 | writeUserLocked(userInfo); |
| 531 | updateUserIdsLocked(); |
| 532 | mPm.createNewUserLILPw(userId, userPath); |
| 533 | } |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 534 | } |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 535 | if (userInfo != null) { |
| 536 | Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 537 | addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userInfo.id); |
| 538 | mContext.sendBroadcast(addedIntent, android.Manifest.permission.MANAGE_USERS); |
Amith Yamasani | fc6e0ca | 2012-08-17 17:07:14 -0700 | [diff] [blame] | 539 | mContext.sendBroadcastAsUser(new Intent(Intent.ACTION_BOOT_COMPLETED), |
| 540 | new UserHandle(userInfo.id)); |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 541 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 542 | return userInfo; |
| 543 | } |
| 544 | |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 545 | /** |
| 546 | * Removes a user and all data directories created for that user. This method should be called |
| 547 | * after the user's processes have been terminated. |
| 548 | * @param id the user's id |
| 549 | */ |
Amith Yamasani | 258848d | 2012-08-10 17:06:33 -0700 | [diff] [blame] | 550 | public boolean removeUser(int userHandle) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 551 | checkManageUsersPermission("Only the system can remove users"); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 552 | synchronized (mInstallLock) { |
| 553 | synchronized (mPackagesLock) { |
| 554 | final UserInfo user = mUsers.get(userHandle); |
| 555 | if (userHandle == 0 || user == null) { |
| 556 | return false; |
| 557 | } |
Amith Yamasani | 0cd867c | 2012-08-22 16:45:47 -0700 | [diff] [blame] | 558 | |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 559 | // Cleanup package manager settings |
| 560 | mPm.cleanUpUserLILPw(userHandle); |
| 561 | |
| 562 | // Remove this user from the list |
| 563 | mUsers.remove(userHandle); |
| 564 | // Remove user file |
| 565 | AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + ".xml")); |
| 566 | userFile.delete(); |
| 567 | // Update the user list |
| 568 | writeUserListLocked(); |
| 569 | updateUserIdsLocked(); |
| 570 | } |
| 571 | } |
Amith Yamasani | 0cd867c | 2012-08-22 16:45:47 -0700 | [diff] [blame] | 572 | |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 573 | // Let other services shutdown any activity |
| 574 | Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); |
| 575 | addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); |
| 576 | mContext.sendBroadcast(addedIntent, android.Manifest.permission.MANAGE_USERS); |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 577 | return true; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 578 | } |
| 579 | |
| 580 | @Override |
| 581 | public int getUserSerialNumber(int userHandle) { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 582 | synchronized (mPackagesLock) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 583 | if (!exists(userHandle)) return -1; |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 584 | return getUserInfoLocked(userHandle).serialNumber; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 585 | } |
| 586 | } |
| 587 | |
| 588 | @Override |
| 589 | public int getUserHandle(int userSerialNumber) { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 590 | synchronized (mPackagesLock) { |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 591 | for (int userId : mUserIds) { |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 592 | if (getUserInfoLocked(userId).serialNumber == userSerialNumber) return userId; |
Amith Yamasani | 2a00329 | 2012-08-14 18:25:45 -0700 | [diff] [blame] | 593 | } |
| 594 | // Not found |
| 595 | return -1; |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 596 | } |
| 597 | } |
| 598 | |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 599 | /** |
| 600 | * Caches the list of user ids in an array, adjusting the array size when necessary. |
| 601 | */ |
Amith Yamasani | 1359360 | 2012-03-22 16:16:17 -0700 | [diff] [blame] | 602 | private void updateUserIdsLocked() { |
Dianne Hackborn | 7767eac | 2012-08-23 18:25:40 -0700 | [diff] [blame] | 603 | int[] newUsers = new int[mUsers.size()]; |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 604 | for (int i = 0; i < mUsers.size(); i++) { |
Dianne Hackborn | 7767eac | 2012-08-23 18:25:40 -0700 | [diff] [blame] | 605 | newUsers[i] = mUsers.keyAt(i); |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 606 | } |
Dianne Hackborn | 7767eac | 2012-08-23 18:25:40 -0700 | [diff] [blame] | 607 | mUserIds = newUsers; |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | /** |
| 611 | * Returns the next available user id, filling in any holes in the ids. |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 612 | * TODO: May not be a good idea to recycle ids, in case it results in confusion |
| 613 | * for data and battery stats collection, or unexpected cross-talk. |
Amith Yamasani | 0b28549 | 2011-04-14 17:35:23 -0700 | [diff] [blame] | 614 | * @return |
| 615 | */ |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 616 | private int getNextAvailableId() { |
Dianne Hackborn | 4428e17 | 2012-08-24 17:43:05 -0700 | [diff] [blame^] | 617 | synchronized (mPackagesLock) { |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 618 | int i = 0; |
| 619 | while (i < Integer.MAX_VALUE) { |
| 620 | if (mUsers.indexOfKey(i) < 0) { |
| 621 | break; |
| 622 | } |
| 623 | i++; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 624 | } |
Amith Yamasani | 19526374 | 2012-08-21 15:40:12 -0700 | [diff] [blame] | 625 | return i; |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 626 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 627 | } |
Amith Yamasani | 4b2e934 | 2011-03-31 12:38:53 -0700 | [diff] [blame] | 628 | } |