Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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; |
| 18 | |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 19 | import static com.android.internal.util.ArrayUtils.appendInt; |
| 20 | |
Dianne Hackborn | c0e4aaa | 2014-11-14 10:55:50 -0800 | [diff] [blame] | 21 | import android.app.ActivityManager; |
Ruben Brunk | 98576cf | 2016-03-07 18:54:28 -0800 | [diff] [blame] | 22 | import android.content.ComponentName; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 23 | import android.content.pm.FeatureInfo; |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 24 | import android.content.pm.PackageManager; |
| 25 | import android.os.Environment; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 26 | import android.os.Process; |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 27 | import android.os.storage.StorageManager; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 28 | import android.util.ArrayMap; |
| 29 | import android.util.ArraySet; |
| 30 | import android.util.Slog; |
| 31 | import android.util.SparseArray; |
| 32 | import android.util.Xml; |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 33 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 34 | import com.android.internal.util.XmlUtils; |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 35 | |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 36 | import libcore.io.IoUtils; |
| 37 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 38 | import org.xmlpull.v1.XmlPullParser; |
| 39 | import org.xmlpull.v1.XmlPullParserException; |
| 40 | |
| 41 | import java.io.File; |
| 42 | import java.io.FileNotFoundException; |
| 43 | import java.io.FileReader; |
| 44 | import java.io.IOException; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 45 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 46 | /** |
| 47 | * Loads global system configuration info. |
| 48 | */ |
| 49 | public class SystemConfig { |
| 50 | static final String TAG = "SystemConfig"; |
| 51 | |
| 52 | static SystemConfig sInstance; |
| 53 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 54 | // permission flag, determines which types of configuration are allowed to be read |
| 55 | private static final int ALLOW_FEATURES = 0x01; |
| 56 | private static final int ALLOW_LIBS = 0x02; |
| 57 | private static final int ALLOW_PERMISSIONS = 0x04; |
| 58 | private static final int ALLOW_APP_CONFIGS = 0x08; |
| 59 | private static final int ALLOW_ALL = ~0; |
| 60 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 61 | // Group-ids that are given to all packages as read from etc/permissions/*.xml. |
| 62 | int[] mGlobalGids; |
| 63 | |
| 64 | // These are the built-in uid -> permission mappings that were read from the |
| 65 | // system configuration files. |
Jeff Sharkey | 9f837a9 | 2014-10-24 12:07:24 -0700 | [diff] [blame] | 66 | final SparseArray<ArraySet<String>> mSystemPermissions = new SparseArray<>(); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 67 | |
| 68 | // These are the built-in shared libraries that were read from the |
| 69 | // system configuration files. Keys are the library names; strings are the |
| 70 | // paths to the libraries. |
Dianne Hackborn | bb8aa5a | 2014-09-17 13:20:38 -0700 | [diff] [blame] | 71 | final ArrayMap<String, String> mSharedLibraries = new ArrayMap<>(); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 72 | |
| 73 | // These are the features this devices supports that were read from the |
| 74 | // system configuration files. |
Jeff Sharkey | 9f837a9 | 2014-10-24 12:07:24 -0700 | [diff] [blame] | 75 | final ArrayMap<String, FeatureInfo> mAvailableFeatures = new ArrayMap<>(); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 76 | |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 77 | // These are the features which this device doesn't support; the OEM |
| 78 | // partition uses these to opt-out of features from the system image. |
| 79 | final ArraySet<String> mUnavailableFeatures = new ArraySet<>(); |
| 80 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 81 | public static final class PermissionEntry { |
| 82 | public final String name; |
| 83 | public int[] gids; |
Jeff Sharkey | 00f3904 | 2015-03-23 16:51:22 -0700 | [diff] [blame] | 84 | public boolean perUser; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 85 | |
Jeff Sharkey | 00f3904 | 2015-03-23 16:51:22 -0700 | [diff] [blame] | 86 | PermissionEntry(String name, boolean perUser) { |
| 87 | this.name = name; |
| 88 | this.perUser = perUser; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 89 | } |
| 90 | } |
| 91 | |
| 92 | // These are the permission -> gid mappings that were read from the |
| 93 | // system configuration files. |
Dianne Hackborn | bb8aa5a | 2014-09-17 13:20:38 -0700 | [diff] [blame] | 94 | final ArrayMap<String, PermissionEntry> mPermissions = new ArrayMap<>(); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 95 | |
| 96 | // These are the packages that are white-listed to be able to run in the |
Dianne Hackborn | 4a503b1 | 2015-08-06 22:19:06 -0700 | [diff] [blame] | 97 | // background while in power save mode (but not whitelisted from device idle modes), |
| 98 | // as read from the configuration files. |
| 99 | final ArraySet<String> mAllowInPowerSaveExceptIdle = new ArraySet<>(); |
| 100 | |
| 101 | // These are the packages that are white-listed to be able to run in the |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 102 | // background while in power save mode, as read from the configuration files. |
Dianne Hackborn | bb8aa5a | 2014-09-17 13:20:38 -0700 | [diff] [blame] | 103 | final ArraySet<String> mAllowInPowerSave = new ArraySet<>(); |
| 104 | |
Felipe Leme | a9505cc | 2016-02-26 10:28:41 -0800 | [diff] [blame] | 105 | // These are the packages that are white-listed to be able to run in the |
| 106 | // background while in data-usage save mode, as read from the configuration files. |
| 107 | final ArraySet<String> mAllowInDataUsageSave = new ArraySet<>(); |
| 108 | |
Christopher Tate | 01e1864 | 2015-07-07 18:10:38 -0700 | [diff] [blame] | 109 | // These are the package names of apps which should be in the 'always' |
| 110 | // URL-handling state upon factory reset. |
| 111 | final ArraySet<String> mLinkedApps = new ArraySet<>(); |
| 112 | |
Fyodor Kupolov | 7db5af1 | 2015-07-31 16:50:27 -0700 | [diff] [blame] | 113 | // These are the packages that are whitelisted to be able to run as system user |
| 114 | final ArraySet<String> mSystemUserWhitelistedApps = new ArraySet<>(); |
| 115 | |
| 116 | // These are the packages that should not run under system user |
| 117 | final ArraySet<String> mSystemUserBlacklistedApps = new ArraySet<>(); |
| 118 | |
Ruben Brunk | 98576cf | 2016-03-07 18:54:28 -0800 | [diff] [blame] | 119 | // These are the components that are enabled by default as VR mode listener services. |
| 120 | final ArraySet<ComponentName> mDefaultVrComponents = new ArraySet<>(); |
| 121 | |
Christopher Tate | 494df79 | 2016-05-10 17:05:38 -0700 | [diff] [blame] | 122 | // These are the permitted backup transport service components |
| 123 | final ArraySet<ComponentName> mBackupTransportWhitelist = new ArraySet<>(); |
| 124 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 125 | public static SystemConfig getInstance() { |
| 126 | synchronized (SystemConfig.class) { |
| 127 | if (sInstance == null) { |
| 128 | sInstance = new SystemConfig(); |
| 129 | } |
| 130 | return sInstance; |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | public int[] getGlobalGids() { |
| 135 | return mGlobalGids; |
| 136 | } |
| 137 | |
Jeff Sharkey | 9f837a9 | 2014-10-24 12:07:24 -0700 | [diff] [blame] | 138 | public SparseArray<ArraySet<String>> getSystemPermissions() { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 139 | return mSystemPermissions; |
| 140 | } |
| 141 | |
| 142 | public ArrayMap<String, String> getSharedLibraries() { |
| 143 | return mSharedLibraries; |
| 144 | } |
| 145 | |
Jeff Sharkey | 9f837a9 | 2014-10-24 12:07:24 -0700 | [diff] [blame] | 146 | public ArrayMap<String, FeatureInfo> getAvailableFeatures() { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 147 | return mAvailableFeatures; |
| 148 | } |
| 149 | |
| 150 | public ArrayMap<String, PermissionEntry> getPermissions() { |
| 151 | return mPermissions; |
| 152 | } |
| 153 | |
Dianne Hackborn | 4a503b1 | 2015-08-06 22:19:06 -0700 | [diff] [blame] | 154 | public ArraySet<String> getAllowInPowerSaveExceptIdle() { |
| 155 | return mAllowInPowerSaveExceptIdle; |
| 156 | } |
| 157 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 158 | public ArraySet<String> getAllowInPowerSave() { |
| 159 | return mAllowInPowerSave; |
| 160 | } |
| 161 | |
Felipe Leme | a9505cc | 2016-02-26 10:28:41 -0800 | [diff] [blame] | 162 | public ArraySet<String> getAllowInDataUsageSave() { |
| 163 | return mAllowInDataUsageSave; |
| 164 | } |
| 165 | |
Christopher Tate | 01e1864 | 2015-07-07 18:10:38 -0700 | [diff] [blame] | 166 | public ArraySet<String> getLinkedApps() { |
| 167 | return mLinkedApps; |
| 168 | } |
| 169 | |
Fyodor Kupolov | 7db5af1 | 2015-07-31 16:50:27 -0700 | [diff] [blame] | 170 | public ArraySet<String> getSystemUserWhitelistedApps() { |
| 171 | return mSystemUserWhitelistedApps; |
| 172 | } |
| 173 | |
| 174 | public ArraySet<String> getSystemUserBlacklistedApps() { |
| 175 | return mSystemUserBlacklistedApps; |
| 176 | } |
| 177 | |
Ruben Brunk | 98576cf | 2016-03-07 18:54:28 -0800 | [diff] [blame] | 178 | public ArraySet<ComponentName> getDefaultVrComponents() { |
| 179 | return mDefaultVrComponents; |
| 180 | } |
| 181 | |
Christopher Tate | 494df79 | 2016-05-10 17:05:38 -0700 | [diff] [blame] | 182 | public ArraySet<ComponentName> getBackupTransportWhitelist() { |
| 183 | return mBackupTransportWhitelist; |
| 184 | } |
| 185 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 186 | SystemConfig() { |
| 187 | // Read configuration from system |
| 188 | readPermissions(Environment.buildPath( |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 189 | Environment.getRootDirectory(), "etc", "sysconfig"), ALLOW_ALL); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 190 | // Read configuration from the old permissions dir |
| 191 | readPermissions(Environment.buildPath( |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 192 | Environment.getRootDirectory(), "etc", "permissions"), ALLOW_ALL); |
| 193 | // Allow ODM to customize system configs around libs, features and apps |
| 194 | int odmPermissionFlag = ALLOW_LIBS | ALLOW_FEATURES | ALLOW_APP_CONFIGS; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 195 | readPermissions(Environment.buildPath( |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 196 | Environment.getOdmDirectory(), "etc", "sysconfig"), odmPermissionFlag); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 197 | readPermissions(Environment.buildPath( |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 198 | Environment.getOdmDirectory(), "etc", "permissions"), odmPermissionFlag); |
| 199 | // Only allow OEM to customize features |
| 200 | readPermissions(Environment.buildPath( |
| 201 | Environment.getOemDirectory(), "etc", "sysconfig"), ALLOW_FEATURES); |
| 202 | readPermissions(Environment.buildPath( |
| 203 | Environment.getOemDirectory(), "etc", "permissions"), ALLOW_FEATURES); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 204 | } |
| 205 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 206 | void readPermissions(File libraryDir, int permissionFlag) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 207 | // Read permissions from given directory. |
| 208 | if (!libraryDir.exists() || !libraryDir.isDirectory()) { |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 209 | if (permissionFlag == ALLOW_ALL) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 210 | Slog.w(TAG, "No directory " + libraryDir + ", skipping"); |
| 211 | } |
| 212 | return; |
| 213 | } |
| 214 | if (!libraryDir.canRead()) { |
| 215 | Slog.w(TAG, "Directory " + libraryDir + " cannot be read"); |
| 216 | return; |
| 217 | } |
| 218 | |
| 219 | // Iterate over the files in the directory and scan .xml files |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 220 | File platformFile = null; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 221 | for (File f : libraryDir.listFiles()) { |
| 222 | // We'll read platform.xml last |
| 223 | if (f.getPath().endsWith("etc/permissions/platform.xml")) { |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 224 | platformFile = f; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 225 | continue; |
| 226 | } |
| 227 | |
| 228 | if (!f.getPath().endsWith(".xml")) { |
| 229 | Slog.i(TAG, "Non-xml file " + f + " in " + libraryDir + " directory, ignoring"); |
| 230 | continue; |
| 231 | } |
| 232 | if (!f.canRead()) { |
| 233 | Slog.w(TAG, "Permissions library file " + f + " cannot be read"); |
| 234 | continue; |
| 235 | } |
| 236 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 237 | readPermissionsFromXml(f, permissionFlag); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 238 | } |
| 239 | |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 240 | // Read platform permissions last so it will take precedence |
| 241 | if (platformFile != null) { |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 242 | readPermissionsFromXml(platformFile, permissionFlag); |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 243 | } |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 244 | } |
| 245 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 246 | private void readPermissionsFromXml(File permFile, int permissionFlag) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 247 | FileReader permReader = null; |
| 248 | try { |
| 249 | permReader = new FileReader(permFile); |
| 250 | } catch (FileNotFoundException e) { |
| 251 | Slog.w(TAG, "Couldn't find or open permissions file " + permFile); |
| 252 | return; |
| 253 | } |
| 254 | |
Dianne Hackborn | c0e4aaa | 2014-11-14 10:55:50 -0800 | [diff] [blame] | 255 | final boolean lowRam = ActivityManager.isLowRamDeviceStatic(); |
| 256 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 257 | try { |
| 258 | XmlPullParser parser = Xml.newPullParser(); |
| 259 | parser.setInput(permReader); |
| 260 | |
| 261 | int type; |
| 262 | while ((type=parser.next()) != parser.START_TAG |
| 263 | && type != parser.END_DOCUMENT) { |
| 264 | ; |
| 265 | } |
| 266 | |
| 267 | if (type != parser.START_TAG) { |
| 268 | throw new XmlPullParserException("No start tag found"); |
| 269 | } |
| 270 | |
| 271 | if (!parser.getName().equals("permissions") && !parser.getName().equals("config")) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 272 | throw new XmlPullParserException("Unexpected start tag in " + permFile |
| 273 | + ": found " + parser.getName() + ", expected 'permissions' or 'config'"); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 274 | } |
| 275 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 276 | boolean allowAll = permissionFlag == ALLOW_ALL; |
| 277 | boolean allowLibs = (permissionFlag & ALLOW_LIBS) != 0; |
| 278 | boolean allowFeatures = (permissionFlag & ALLOW_FEATURES) != 0; |
| 279 | boolean allowPermissions = (permissionFlag & ALLOW_PERMISSIONS) != 0; |
| 280 | boolean allowAppConfigs = (permissionFlag & ALLOW_APP_CONFIGS) != 0; |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 281 | while (true) { |
| 282 | XmlUtils.nextElement(parser); |
| 283 | if (parser.getEventType() == XmlPullParser.END_DOCUMENT) { |
| 284 | break; |
| 285 | } |
| 286 | |
| 287 | String name = parser.getName(); |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 288 | if ("group".equals(name) && allowAll) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 289 | String gidStr = parser.getAttributeValue(null, "gid"); |
| 290 | if (gidStr != null) { |
| 291 | int gid = android.os.Process.getGidForName(gidStr); |
| 292 | mGlobalGids = appendInt(mGlobalGids, gid); |
| 293 | } else { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 294 | Slog.w(TAG, "<group> without gid in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 295 | + parser.getPositionDescription()); |
| 296 | } |
| 297 | |
| 298 | XmlUtils.skipCurrentTag(parser); |
| 299 | continue; |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 300 | } else if ("permission".equals(name) && allowPermissions) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 301 | String perm = parser.getAttributeValue(null, "name"); |
| 302 | if (perm == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 303 | Slog.w(TAG, "<permission> without name in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 304 | + parser.getPositionDescription()); |
| 305 | XmlUtils.skipCurrentTag(parser); |
| 306 | continue; |
| 307 | } |
| 308 | perm = perm.intern(); |
| 309 | readPermission(parser, perm); |
| 310 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 311 | } else if ("assign-permission".equals(name) && allowPermissions) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 312 | String perm = parser.getAttributeValue(null, "name"); |
| 313 | if (perm == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 314 | Slog.w(TAG, "<assign-permission> without name in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 315 | + parser.getPositionDescription()); |
| 316 | XmlUtils.skipCurrentTag(parser); |
| 317 | continue; |
| 318 | } |
| 319 | String uidStr = parser.getAttributeValue(null, "uid"); |
| 320 | if (uidStr == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 321 | Slog.w(TAG, "<assign-permission> without uid in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 322 | + parser.getPositionDescription()); |
| 323 | XmlUtils.skipCurrentTag(parser); |
| 324 | continue; |
| 325 | } |
| 326 | int uid = Process.getUidForName(uidStr); |
| 327 | if (uid < 0) { |
| 328 | Slog.w(TAG, "<assign-permission> with unknown uid \"" |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 329 | + uidStr + " in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 330 | + parser.getPositionDescription()); |
| 331 | XmlUtils.skipCurrentTag(parser); |
| 332 | continue; |
| 333 | } |
| 334 | perm = perm.intern(); |
Jeff Sharkey | 9f837a9 | 2014-10-24 12:07:24 -0700 | [diff] [blame] | 335 | ArraySet<String> perms = mSystemPermissions.get(uid); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 336 | if (perms == null) { |
Jeff Sharkey | 9f837a9 | 2014-10-24 12:07:24 -0700 | [diff] [blame] | 337 | perms = new ArraySet<String>(); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 338 | mSystemPermissions.put(uid, perms); |
| 339 | } |
| 340 | perms.add(perm); |
| 341 | XmlUtils.skipCurrentTag(parser); |
| 342 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 343 | } else if ("library".equals(name) && allowLibs) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 344 | String lname = parser.getAttributeValue(null, "name"); |
| 345 | String lfile = parser.getAttributeValue(null, "file"); |
| 346 | if (lname == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 347 | Slog.w(TAG, "<library> without name in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 348 | + parser.getPositionDescription()); |
| 349 | } else if (lfile == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 350 | Slog.w(TAG, "<library> without file in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 351 | + parser.getPositionDescription()); |
| 352 | } else { |
| 353 | //Log.i(TAG, "Got library " + lname + " in " + lfile); |
| 354 | mSharedLibraries.put(lname, lfile); |
| 355 | } |
| 356 | XmlUtils.skipCurrentTag(parser); |
| 357 | continue; |
| 358 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 359 | } else if ("feature".equals(name) && allowFeatures) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 360 | String fname = parser.getAttributeValue(null, "name"); |
Arunesh Mishra | 4e0bdf3 | 2016-02-15 23:50:38 -0800 | [diff] [blame] | 361 | int fversion = XmlUtils.readIntAttribute(parser, "version", 0); |
Dianne Hackborn | c0e4aaa | 2014-11-14 10:55:50 -0800 | [diff] [blame] | 362 | boolean allowed; |
| 363 | if (!lowRam) { |
| 364 | allowed = true; |
| 365 | } else { |
| 366 | String notLowRam = parser.getAttributeValue(null, "notLowRam"); |
| 367 | allowed = !"true".equals(notLowRam); |
| 368 | } |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 369 | if (fname == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 370 | Slog.w(TAG, "<feature> without name in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 371 | + parser.getPositionDescription()); |
Dianne Hackborn | c0e4aaa | 2014-11-14 10:55:50 -0800 | [diff] [blame] | 372 | } else if (allowed) { |
Jeff Sharkey | 115d2c1 | 2016-02-15 17:25:57 -0700 | [diff] [blame] | 373 | addFeature(fname, fversion); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 374 | } |
| 375 | XmlUtils.skipCurrentTag(parser); |
| 376 | continue; |
| 377 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 378 | } else if ("unavailable-feature".equals(name) && allowFeatures) { |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 379 | String fname = parser.getAttributeValue(null, "name"); |
| 380 | if (fname == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 381 | Slog.w(TAG, "<unavailable-feature> without name in " + permFile + " at " |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 382 | + parser.getPositionDescription()); |
| 383 | } else { |
| 384 | mUnavailableFeatures.add(fname); |
| 385 | } |
| 386 | XmlUtils.skipCurrentTag(parser); |
| 387 | continue; |
| 388 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 389 | } else if ("allow-in-power-save-except-idle".equals(name) && allowAll) { |
Dianne Hackborn | 4a503b1 | 2015-08-06 22:19:06 -0700 | [diff] [blame] | 390 | String pkgname = parser.getAttributeValue(null, "package"); |
| 391 | if (pkgname == null) { |
| 392 | Slog.w(TAG, "<allow-in-power-save-except-idle> without package in " |
| 393 | + permFile + " at " + parser.getPositionDescription()); |
| 394 | } else { |
| 395 | mAllowInPowerSaveExceptIdle.add(pkgname); |
| 396 | } |
| 397 | XmlUtils.skipCurrentTag(parser); |
| 398 | continue; |
| 399 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 400 | } else if ("allow-in-power-save".equals(name) && allowAll) { |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 401 | String pkgname = parser.getAttributeValue(null, "package"); |
| 402 | if (pkgname == null) { |
Dianne Hackborn | b3d4cb3 | 2015-01-09 09:54:06 -0800 | [diff] [blame] | 403 | Slog.w(TAG, "<allow-in-power-save> without package in " + permFile + " at " |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 404 | + parser.getPositionDescription()); |
| 405 | } else { |
| 406 | mAllowInPowerSave.add(pkgname); |
| 407 | } |
| 408 | XmlUtils.skipCurrentTag(parser); |
| 409 | continue; |
| 410 | |
Felipe Leme | a9505cc | 2016-02-26 10:28:41 -0800 | [diff] [blame] | 411 | } else if ("allow-in-data-usage-save".equals(name) && allowAll) { |
| 412 | String pkgname = parser.getAttributeValue(null, "package"); |
| 413 | if (pkgname == null) { |
| 414 | Slog.w(TAG, "<allow-in-data-usage-save> without package in " + permFile |
| 415 | + " at " + parser.getPositionDescription()); |
| 416 | } else { |
| 417 | mAllowInDataUsageSave.add(pkgname); |
| 418 | } |
| 419 | XmlUtils.skipCurrentTag(parser); |
| 420 | continue; |
| 421 | |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 422 | } else if ("app-link".equals(name) && allowAppConfigs) { |
Christopher Tate | 01e1864 | 2015-07-07 18:10:38 -0700 | [diff] [blame] | 423 | String pkgname = parser.getAttributeValue(null, "package"); |
| 424 | if (pkgname == null) { |
| 425 | Slog.w(TAG, "<app-link> without package in " + permFile + " at " |
| 426 | + parser.getPositionDescription()); |
| 427 | } else { |
| 428 | mLinkedApps.add(pkgname); |
| 429 | } |
| 430 | XmlUtils.skipCurrentTag(parser); |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 431 | } else if ("system-user-whitelisted-app".equals(name) && allowAppConfigs) { |
Fyodor Kupolov | 7db5af1 | 2015-07-31 16:50:27 -0700 | [diff] [blame] | 432 | String pkgname = parser.getAttributeValue(null, "package"); |
| 433 | if (pkgname == null) { |
| 434 | Slog.w(TAG, "<system-user-whitelisted-app> without package in " + permFile |
| 435 | + " at " + parser.getPositionDescription()); |
| 436 | } else { |
| 437 | mSystemUserWhitelistedApps.add(pkgname); |
| 438 | } |
| 439 | XmlUtils.skipCurrentTag(parser); |
Hung-ying Tyan | bdc9d58 | 2015-11-20 11:53:39 +0800 | [diff] [blame] | 440 | } else if ("system-user-blacklisted-app".equals(name) && allowAppConfigs) { |
Fyodor Kupolov | 7db5af1 | 2015-07-31 16:50:27 -0700 | [diff] [blame] | 441 | String pkgname = parser.getAttributeValue(null, "package"); |
| 442 | if (pkgname == null) { |
| 443 | Slog.w(TAG, "<system-user-blacklisted-app without package in " + permFile |
| 444 | + " at " + parser.getPositionDescription()); |
| 445 | } else { |
| 446 | mSystemUserBlacklistedApps.add(pkgname); |
| 447 | } |
| 448 | XmlUtils.skipCurrentTag(parser); |
Ruben Brunk | 98576cf | 2016-03-07 18:54:28 -0800 | [diff] [blame] | 449 | } else if ("default-enabled-vr-app".equals(name) && allowAppConfigs) { |
| 450 | String pkgname = parser.getAttributeValue(null, "package"); |
| 451 | String clsname = parser.getAttributeValue(null, "class"); |
| 452 | if (pkgname == null) { |
| 453 | Slog.w(TAG, "<default-enabled-vr-app without package in " + permFile |
| 454 | + " at " + parser.getPositionDescription()); |
| 455 | } else if (clsname == null) { |
| 456 | Slog.w(TAG, "<default-enabled-vr-app without class in " + permFile |
| 457 | + " at " + parser.getPositionDescription()); |
| 458 | } else { |
| 459 | mDefaultVrComponents.add(new ComponentName(pkgname, clsname)); |
| 460 | } |
| 461 | XmlUtils.skipCurrentTag(parser); |
Christopher Tate | 494df79 | 2016-05-10 17:05:38 -0700 | [diff] [blame] | 462 | } else if ("backup-transport-whitelisted-service".equals(name) && allowFeatures) { |
| 463 | String serviceName = parser.getAttributeValue(null, "service"); |
| 464 | if (serviceName == null) { |
| 465 | Slog.w(TAG, "<backup-transport-whitelisted-service> without service in " |
| 466 | + permFile + " at " + parser.getPositionDescription()); |
| 467 | } else { |
| 468 | ComponentName cn = ComponentName.unflattenFromString(serviceName); |
| 469 | if (cn == null) { |
| 470 | Slog.w(TAG, |
| 471 | "<backup-transport-whitelisted-service> with invalid service name " |
| 472 | + serviceName + " in "+ permFile |
| 473 | + " at " + parser.getPositionDescription()); |
| 474 | } else { |
| 475 | mBackupTransportWhitelist.add(cn); |
| 476 | } |
| 477 | } |
| 478 | XmlUtils.skipCurrentTag(parser); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 479 | } else { |
| 480 | XmlUtils.skipCurrentTag(parser); |
| 481 | continue; |
| 482 | } |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 483 | } |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 484 | } catch (XmlPullParserException e) { |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 485 | Slog.w(TAG, "Got exception parsing permissions.", e); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 486 | } catch (IOException e) { |
Jeff Sharkey | 1c4ae80 | 2014-12-19 11:08:55 -0800 | [diff] [blame] | 487 | Slog.w(TAG, "Got exception parsing permissions.", e); |
| 488 | } finally { |
| 489 | IoUtils.closeQuietly(permReader); |
| 490 | } |
| 491 | |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 492 | // Some devices can be field-converted to FBE, so offer to splice in |
| 493 | // those features if not already defined by the static config |
Paul Lawrence | 20be5d6 | 2016-02-26 13:51:17 -0800 | [diff] [blame] | 494 | if (StorageManager.isFileEncryptedNativeOnly()) { |
Jeff Sharkey | 115d2c1 | 2016-02-15 17:25:57 -0700 | [diff] [blame] | 495 | addFeature(PackageManager.FEATURE_FILE_BASED_ENCRYPTION, 0); |
| 496 | addFeature(PackageManager.FEATURE_SECURELY_REMOVES_USERS, 0); |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | for (String featureName : mUnavailableFeatures) { |
| 500 | removeFeature(featureName); |
| 501 | } |
| 502 | } |
| 503 | |
Jeff Sharkey | 115d2c1 | 2016-02-15 17:25:57 -0700 | [diff] [blame] | 504 | private void addFeature(String name, int version) { |
| 505 | FeatureInfo fi = mAvailableFeatures.get(name); |
| 506 | if (fi == null) { |
| 507 | fi = new FeatureInfo(); |
| 508 | fi.name = name; |
| 509 | fi.version = version; |
| 510 | mAvailableFeatures.put(name, fi); |
| 511 | } else { |
| 512 | fi.version = Math.max(fi.version, version); |
Jeff Sharkey | b92b05b | 2016-01-28 09:50:00 -0700 | [diff] [blame] | 513 | } |
| 514 | } |
| 515 | |
Jeff Sharkey | 115d2c1 | 2016-02-15 17:25:57 -0700 | [diff] [blame] | 516 | private void removeFeature(String name) { |
| 517 | if (mAvailableFeatures.remove(name) != null) { |
| 518 | Slog.d(TAG, "Removed unavailable feature " + name); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 519 | } |
| 520 | } |
| 521 | |
| 522 | void readPermission(XmlPullParser parser, String name) |
| 523 | throws IOException, XmlPullParserException { |
Jeff Sharkey | 00f3904 | 2015-03-23 16:51:22 -0700 | [diff] [blame] | 524 | if (mPermissions.containsKey(name)) { |
| 525 | throw new IllegalStateException("Duplicate permission definition for " + name); |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 526 | } |
Jeff Sharkey | 00f3904 | 2015-03-23 16:51:22 -0700 | [diff] [blame] | 527 | |
| 528 | final boolean perUser = XmlUtils.readBooleanAttribute(parser, "perUser", false); |
| 529 | final PermissionEntry perm = new PermissionEntry(name, perUser); |
| 530 | mPermissions.put(name, perm); |
| 531 | |
Dianne Hackborn | be7c50e | 2014-06-30 14:43:28 -0700 | [diff] [blame] | 532 | int outerDepth = parser.getDepth(); |
| 533 | int type; |
| 534 | while ((type=parser.next()) != XmlPullParser.END_DOCUMENT |
| 535 | && (type != XmlPullParser.END_TAG |
| 536 | || parser.getDepth() > outerDepth)) { |
| 537 | if (type == XmlPullParser.END_TAG |
| 538 | || type == XmlPullParser.TEXT) { |
| 539 | continue; |
| 540 | } |
| 541 | |
| 542 | String tagName = parser.getName(); |
| 543 | if ("group".equals(tagName)) { |
| 544 | String gidStr = parser.getAttributeValue(null, "gid"); |
| 545 | if (gidStr != null) { |
| 546 | int gid = Process.getGidForName(gidStr); |
| 547 | perm.gids = appendInt(perm.gids, gid); |
| 548 | } else { |
| 549 | Slog.w(TAG, "<group> without gid at " |
| 550 | + parser.getPositionDescription()); |
| 551 | } |
| 552 | } |
| 553 | XmlUtils.skipCurrentTag(parser); |
| 554 | } |
| 555 | } |
| 556 | } |