Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.pm.permission; |
| 18 | |
| 19 | import static android.Manifest.permission.READ_EXTERNAL_STORAGE; |
| 20 | import static android.content.pm.PermissionInfo.PROTECTION_DANGEROUS; |
| 21 | import static android.content.pm.PermissionInfo.PROTECTION_NORMAL; |
| 22 | import static android.content.pm.PermissionInfo.PROTECTION_SIGNATURE; |
| 23 | import static android.content.pm.PermissionInfo.PROTECTION_SIGNATURE_OR_SYSTEM; |
| 24 | |
| 25 | import static com.android.server.pm.Settings.ATTR_NAME; |
| 26 | import static com.android.server.pm.Settings.ATTR_PACKAGE; |
| 27 | import static com.android.server.pm.Settings.TAG_ITEM; |
| 28 | |
| 29 | import android.annotation.IntDef; |
| 30 | import android.annotation.NonNull; |
| 31 | import android.annotation.Nullable; |
| 32 | import android.content.pm.PackageParser; |
| 33 | import android.content.pm.PackageParser.Permission; |
| 34 | import android.content.pm.PermissionInfo; |
Todd Kennedy | c29b11a | 2017-10-23 15:55:59 -0700 | [diff] [blame] | 35 | import android.content.pm.Signature; |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 36 | import android.os.UserHandle; |
| 37 | import android.util.Log; |
| 38 | import android.util.Slog; |
| 39 | |
| 40 | import com.android.server.pm.DumpState; |
| 41 | import com.android.server.pm.PackageManagerService; |
| 42 | import com.android.server.pm.PackageSettingBase; |
| 43 | |
| 44 | import org.xmlpull.v1.XmlPullParser; |
| 45 | import org.xmlpull.v1.XmlSerializer; |
| 46 | |
| 47 | import java.io.IOException; |
| 48 | import java.io.PrintWriter; |
| 49 | import java.lang.annotation.Retention; |
| 50 | import java.lang.annotation.RetentionPolicy; |
| 51 | import java.util.Arrays; |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 52 | import java.util.Collection; |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 53 | import java.util.Map; |
| 54 | import java.util.Objects; |
| 55 | import java.util.Set; |
| 56 | |
| 57 | public final class BasePermission { |
| 58 | static final String TAG = "PackageManager"; |
| 59 | |
| 60 | public static final int TYPE_NORMAL = 0; |
| 61 | public static final int TYPE_BUILTIN = 1; |
| 62 | public static final int TYPE_DYNAMIC = 2; |
| 63 | @IntDef(value = { |
| 64 | TYPE_NORMAL, |
| 65 | TYPE_BUILTIN, |
| 66 | TYPE_DYNAMIC, |
| 67 | }) |
| 68 | @Retention(RetentionPolicy.SOURCE) |
| 69 | public @interface PermissionType {} |
| 70 | |
| 71 | @IntDef(value = { |
| 72 | PROTECTION_DANGEROUS, |
| 73 | PROTECTION_NORMAL, |
| 74 | PROTECTION_SIGNATURE, |
| 75 | PROTECTION_SIGNATURE_OR_SYSTEM, |
| 76 | }) |
| 77 | @Retention(RetentionPolicy.SOURCE) |
| 78 | public @interface ProtectionLevel {} |
| 79 | |
| 80 | final String name; |
| 81 | |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 82 | final @PermissionType int type; |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 83 | |
| 84 | String sourcePackageName; |
| 85 | |
| 86 | // TODO: Can we get rid of this? Seems we only use some signature info from the setting |
| 87 | PackageSettingBase sourcePackageSetting; |
| 88 | |
| 89 | int protectionLevel; |
| 90 | |
| 91 | PackageParser.Permission perm; |
| 92 | |
| 93 | PermissionInfo pendingPermissionInfo; |
| 94 | |
| 95 | /** UID that owns the definition of this permission */ |
| 96 | int uid; |
| 97 | |
| 98 | /** Additional GIDs given to apps granted this permission */ |
| 99 | private int[] gids; |
| 100 | |
| 101 | /** |
| 102 | * Flag indicating that {@link #gids} should be adjusted based on the |
| 103 | * {@link UserHandle} the granted app is running as. |
| 104 | */ |
| 105 | private boolean perUser; |
| 106 | |
| 107 | public BasePermission(String _name, String _sourcePackageName, @PermissionType int _type) { |
| 108 | name = _name; |
| 109 | sourcePackageName = _sourcePackageName; |
| 110 | type = _type; |
| 111 | // Default to most conservative protection level. |
| 112 | protectionLevel = PermissionInfo.PROTECTION_SIGNATURE; |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | public String toString() { |
| 117 | return "BasePermission{" + Integer.toHexString(System.identityHashCode(this)) + " " + name |
| 118 | + "}"; |
| 119 | } |
| 120 | |
| 121 | public String getName() { |
| 122 | return name; |
| 123 | } |
| 124 | public int getProtectionLevel() { |
| 125 | return protectionLevel; |
| 126 | } |
| 127 | public String getSourcePackageName() { |
| 128 | return sourcePackageName; |
| 129 | } |
| 130 | public PackageSettingBase getSourcePackageSetting() { |
| 131 | return sourcePackageSetting; |
| 132 | } |
Todd Kennedy | c29b11a | 2017-10-23 15:55:59 -0700 | [diff] [blame] | 133 | public Signature[] getSourceSignatures() { |
| 134 | return sourcePackageSetting.getSignatures(); |
| 135 | } |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 136 | public int getType() { |
| 137 | return type; |
| 138 | } |
| 139 | public int getUid() { |
| 140 | return uid; |
| 141 | } |
| 142 | public void setGids(int[] gids, boolean perUser) { |
| 143 | this.gids = gids; |
| 144 | this.perUser = perUser; |
| 145 | } |
| 146 | public void setPermission(@Nullable Permission perm) { |
| 147 | this.perm = perm; |
| 148 | } |
| 149 | public void setSourcePackageSetting(PackageSettingBase sourcePackageSetting) { |
| 150 | this.sourcePackageSetting = sourcePackageSetting; |
| 151 | } |
| 152 | |
| 153 | public int[] computeGids(int userId) { |
| 154 | if (perUser) { |
| 155 | final int[] userGids = new int[gids.length]; |
| 156 | for (int i = 0; i < gids.length; i++) { |
| 157 | userGids[i] = UserHandle.getUid(userId, gids[i]); |
| 158 | } |
| 159 | return userGids; |
| 160 | } else { |
| 161 | return gids; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | public int calculateFootprint(BasePermission perm) { |
| 166 | if (uid == perm.uid) { |
| 167 | return perm.name.length() + perm.perm.info.calculateFootprint(); |
| 168 | } |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | public boolean isPermission(Permission perm) { |
| 173 | return this.perm == perm; |
| 174 | } |
| 175 | |
| 176 | public boolean isDynamic() { |
| 177 | return type == TYPE_DYNAMIC; |
| 178 | } |
| 179 | |
| 180 | |
| 181 | public boolean isNormal() { |
| 182 | return (protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) |
| 183 | == PermissionInfo.PROTECTION_NORMAL; |
| 184 | } |
| 185 | public boolean isRuntime() { |
| 186 | return (protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) |
| 187 | == PermissionInfo.PROTECTION_DANGEROUS; |
| 188 | } |
| 189 | public boolean isSignature() { |
| 190 | return (protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) == |
| 191 | PermissionInfo.PROTECTION_SIGNATURE; |
| 192 | } |
| 193 | |
| 194 | public boolean isAppOp() { |
| 195 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_APPOP) != 0; |
| 196 | } |
| 197 | public boolean isDevelopment() { |
| 198 | return isSignature() |
| 199 | && (protectionLevel & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0; |
| 200 | } |
| 201 | public boolean isInstaller() { |
| 202 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_INSTALLER) != 0; |
| 203 | } |
| 204 | public boolean isInstant() { |
| 205 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_INSTANT) != 0; |
| 206 | } |
| 207 | public boolean isOEM() { |
| 208 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_OEM) != 0; |
| 209 | } |
| 210 | public boolean isPre23() { |
| 211 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_PRE23) != 0; |
| 212 | } |
| 213 | public boolean isPreInstalled() { |
| 214 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_PREINSTALLED) != 0; |
| 215 | } |
| 216 | public boolean isPrivileged() { |
| 217 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_PRIVILEGED) != 0; |
| 218 | } |
| 219 | public boolean isRuntimeOnly() { |
| 220 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_RUNTIME_ONLY) != 0; |
| 221 | } |
| 222 | public boolean isSetup() { |
| 223 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_SETUP) != 0; |
| 224 | } |
| 225 | public boolean isVerifier() { |
| 226 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_VERIFIER) != 0; |
| 227 | } |
Jiyong Park | 002fdbd | 2017-02-13 20:50:31 +0900 | [diff] [blame] | 228 | public boolean isVendorPrivileged() { |
| 229 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_VENDOR_PRIVILEGED) != 0; |
| 230 | } |
Makoto Onuki | 700feef | 2018-02-15 10:59:41 -0800 | [diff] [blame] | 231 | public boolean isSystemTextClassifier() { |
| 232 | return (protectionLevel & PermissionInfo.PROTECTION_FLAG_SYSTEM_TEXT_CLASSIFIER) |
| 233 | != 0; |
| 234 | } |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 235 | |
| 236 | public void transfer(@NonNull String origPackageName, @NonNull String newPackageName) { |
| 237 | if (!origPackageName.equals(sourcePackageName)) { |
| 238 | return; |
| 239 | } |
| 240 | sourcePackageName = newPackageName; |
| 241 | sourcePackageSetting = null; |
| 242 | perm = null; |
| 243 | if (pendingPermissionInfo != null) { |
| 244 | pendingPermissionInfo.packageName = newPackageName; |
| 245 | } |
| 246 | uid = 0; |
| 247 | setGids(null, false); |
| 248 | } |
| 249 | |
| 250 | public boolean addToTree(@ProtectionLevel int protectionLevel, |
| 251 | @NonNull PermissionInfo info, @NonNull BasePermission tree) { |
| 252 | final boolean changed = |
| 253 | (this.protectionLevel != protectionLevel |
| 254 | || perm == null |
| 255 | || uid != tree.uid |
| 256 | || !perm.owner.equals(tree.perm.owner) |
| 257 | || !comparePermissionInfos(perm.info, info)); |
| 258 | this.protectionLevel = protectionLevel; |
| 259 | info = new PermissionInfo(info); |
| 260 | info.protectionLevel = protectionLevel; |
| 261 | perm = new PackageParser.Permission(tree.perm.owner, info); |
| 262 | perm.info.packageName = tree.perm.info.packageName; |
| 263 | uid = tree.uid; |
| 264 | return changed; |
| 265 | } |
| 266 | |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 267 | public void updateDynamicPermission(Collection<BasePermission> permissionTrees) { |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 268 | if (PackageManagerService.DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name=" |
| 269 | + getName() + " pkg=" + getSourcePackageName() |
| 270 | + " info=" + pendingPermissionInfo); |
| 271 | if (sourcePackageSetting == null && pendingPermissionInfo != null) { |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 272 | final BasePermission tree = findPermissionTree(permissionTrees, name); |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 273 | if (tree != null && tree.perm != null) { |
| 274 | sourcePackageSetting = tree.sourcePackageSetting; |
| 275 | perm = new PackageParser.Permission(tree.perm.owner, |
| 276 | new PermissionInfo(pendingPermissionInfo)); |
| 277 | perm.info.packageName = tree.perm.info.packageName; |
| 278 | perm.info.name = name; |
| 279 | uid = tree.uid; |
| 280 | } |
| 281 | } |
| 282 | } |
| 283 | |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 284 | static BasePermission createOrUpdate(@Nullable BasePermission bp, @NonNull Permission p, |
| 285 | @NonNull PackageParser.Package pkg, Collection<BasePermission> permissionTrees, |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 286 | boolean chatty) { |
| 287 | final PackageSettingBase pkgSetting = (PackageSettingBase) pkg.mExtras; |
| 288 | // Allow system apps to redefine non-system permissions |
| 289 | if (bp != null && !Objects.equals(bp.sourcePackageName, p.info.packageName)) { |
| 290 | final boolean currentOwnerIsSystem = (bp.perm != null |
Todd Kennedy | c29b11a | 2017-10-23 15:55:59 -0700 | [diff] [blame] | 291 | && bp.perm.owner.isSystem()); |
| 292 | if (p.owner.isSystem()) { |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 293 | if (bp.type == BasePermission.TYPE_BUILTIN && bp.perm == null) { |
| 294 | // It's a built-in permission and no owner, take ownership now |
| 295 | bp.sourcePackageSetting = pkgSetting; |
| 296 | bp.perm = p; |
| 297 | bp.uid = pkg.applicationInfo.uid; |
| 298 | bp.sourcePackageName = p.info.packageName; |
| 299 | p.info.flags |= PermissionInfo.FLAG_INSTALLED; |
| 300 | } else if (!currentOwnerIsSystem) { |
| 301 | String msg = "New decl " + p.owner + " of permission " |
| 302 | + p.info.name + " is system; overriding " + bp.sourcePackageName; |
| 303 | PackageManagerService.reportSettingsProblem(Log.WARN, msg); |
| 304 | bp = null; |
| 305 | } |
| 306 | } |
| 307 | } |
| 308 | if (bp == null) { |
| 309 | bp = new BasePermission(p.info.name, p.info.packageName, TYPE_NORMAL); |
| 310 | } |
| 311 | StringBuilder r = null; |
| 312 | if (bp.perm == null) { |
| 313 | if (bp.sourcePackageName == null |
| 314 | || bp.sourcePackageName.equals(p.info.packageName)) { |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 315 | final BasePermission tree = findPermissionTree(permissionTrees, p.info.name); |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 316 | if (tree == null |
| 317 | || tree.sourcePackageName.equals(p.info.packageName)) { |
| 318 | bp.sourcePackageSetting = pkgSetting; |
| 319 | bp.perm = p; |
| 320 | bp.uid = pkg.applicationInfo.uid; |
| 321 | bp.sourcePackageName = p.info.packageName; |
| 322 | p.info.flags |= PermissionInfo.FLAG_INSTALLED; |
| 323 | if (chatty) { |
| 324 | if (r == null) { |
| 325 | r = new StringBuilder(256); |
| 326 | } else { |
| 327 | r.append(' '); |
| 328 | } |
| 329 | r.append(p.info.name); |
| 330 | } |
| 331 | } else { |
| 332 | Slog.w(TAG, "Permission " + p.info.name + " from package " |
| 333 | + p.info.packageName + " ignored: base tree " |
| 334 | + tree.name + " is from package " |
| 335 | + tree.sourcePackageName); |
| 336 | } |
| 337 | } else { |
| 338 | Slog.w(TAG, "Permission " + p.info.name + " from package " |
| 339 | + p.info.packageName + " ignored: original from " |
| 340 | + bp.sourcePackageName); |
| 341 | } |
| 342 | } else if (chatty) { |
| 343 | if (r == null) { |
| 344 | r = new StringBuilder(256); |
| 345 | } else { |
| 346 | r.append(' '); |
| 347 | } |
| 348 | r.append("DUP:"); |
| 349 | r.append(p.info.name); |
| 350 | } |
| 351 | if (bp.perm == p) { |
| 352 | bp.protectionLevel = p.info.protectionLevel; |
| 353 | } |
| 354 | if (PackageManagerService.DEBUG_PACKAGE_SCANNING && r != null) { |
| 355 | Log.d(TAG, " Permissions: " + r); |
| 356 | } |
| 357 | return bp; |
| 358 | } |
| 359 | |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 360 | static BasePermission enforcePermissionTree( |
| 361 | Collection<BasePermission> permissionTrees, String permName, int callingUid) { |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 362 | if (permName != null) { |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 363 | BasePermission bp = findPermissionTree(permissionTrees, permName); |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 364 | if (bp != null) { |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 365 | if (bp.uid == UserHandle.getAppId(callingUid)) { |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 366 | return bp; |
| 367 | } |
| 368 | throw new SecurityException("Calling uid " + callingUid |
| 369 | + " is not allowed to add to permission tree " |
| 370 | + bp.name + " owned by uid " + bp.uid); |
| 371 | } |
| 372 | } |
| 373 | throw new SecurityException("No permission tree found for " + permName); |
| 374 | } |
| 375 | |
| 376 | public void enforceDeclaredUsedAndRuntimeOrDevelopment(PackageParser.Package pkg) { |
| 377 | int index = pkg.requestedPermissions.indexOf(name); |
| 378 | if (index == -1) { |
| 379 | throw new SecurityException("Package " + pkg.packageName |
| 380 | + " has not requested permission " + name); |
| 381 | } |
| 382 | if (!isRuntime() && !isDevelopment()) { |
| 383 | throw new SecurityException("Permission " + name |
| 384 | + " is not a changeable permission type"); |
| 385 | } |
| 386 | } |
| 387 | |
Todd Kennedy | c842393 | 2017-10-05 08:58:36 -0700 | [diff] [blame] | 388 | private static BasePermission findPermissionTree( |
| 389 | Collection<BasePermission> permissionTrees, String permName) { |
| 390 | for (BasePermission bp : permissionTrees) { |
Todd Kennedy | 91a39d1 | 2017-09-27 12:37:04 -0700 | [diff] [blame] | 391 | if (permName.startsWith(bp.name) && |
| 392 | permName.length() > bp.name.length() && |
| 393 | permName.charAt(bp.name.length()) == '.') { |
| 394 | return bp; |
| 395 | } |
| 396 | } |
| 397 | return null; |
| 398 | } |
| 399 | |
| 400 | public @Nullable PermissionInfo generatePermissionInfo(@NonNull String groupName, int flags) { |
| 401 | if (groupName == null) { |
| 402 | if (perm == null || perm.info.group == null) { |
| 403 | return generatePermissionInfo(protectionLevel, flags); |
| 404 | } |
| 405 | } else { |
| 406 | if (perm != null && groupName.equals(perm.info.group)) { |
| 407 | return PackageParser.generatePermissionInfo(perm, flags); |
| 408 | } |
| 409 | } |
| 410 | return null; |
| 411 | } |
| 412 | |
| 413 | public @NonNull PermissionInfo generatePermissionInfo(int adjustedProtectionLevel, int flags) { |
| 414 | final boolean protectionLevelChanged = protectionLevel != adjustedProtectionLevel; |
| 415 | // if we return different protection level, don't use the cached info |
| 416 | if (perm != null && !protectionLevelChanged) { |
| 417 | return PackageParser.generatePermissionInfo(perm, flags); |
| 418 | } |
| 419 | final PermissionInfo pi = new PermissionInfo(); |
| 420 | pi.name = name; |
| 421 | pi.packageName = sourcePackageName; |
| 422 | pi.nonLocalizedLabel = name; |
| 423 | pi.protectionLevel = protectionLevelChanged ? adjustedProtectionLevel : protectionLevel; |
| 424 | return pi; |
| 425 | } |
| 426 | |
| 427 | public static boolean readLPw(@NonNull Map<String, BasePermission> out, |
| 428 | @NonNull XmlPullParser parser) { |
| 429 | final String tagName = parser.getName(); |
| 430 | if (!tagName.equals(TAG_ITEM)) { |
| 431 | return false; |
| 432 | } |
| 433 | final String name = parser.getAttributeValue(null, ATTR_NAME); |
| 434 | final String sourcePackage = parser.getAttributeValue(null, ATTR_PACKAGE); |
| 435 | final String ptype = parser.getAttributeValue(null, "type"); |
| 436 | if (name == null || sourcePackage == null) { |
| 437 | PackageManagerService.reportSettingsProblem(Log.WARN, |
| 438 | "Error in package manager settings: permissions has" + " no name at " |
| 439 | + parser.getPositionDescription()); |
| 440 | return false; |
| 441 | } |
| 442 | final boolean dynamic = "dynamic".equals(ptype); |
| 443 | BasePermission bp = out.get(name); |
| 444 | // If the permission is builtin, do not clobber it. |
| 445 | if (bp == null || bp.type != TYPE_BUILTIN) { |
| 446 | bp = new BasePermission(name.intern(), sourcePackage, |
| 447 | dynamic ? TYPE_DYNAMIC : TYPE_NORMAL); |
| 448 | } |
| 449 | bp.protectionLevel = readInt(parser, null, "protection", |
| 450 | PermissionInfo.PROTECTION_NORMAL); |
| 451 | bp.protectionLevel = PermissionInfo.fixProtectionLevel(bp.protectionLevel); |
| 452 | if (dynamic) { |
| 453 | final PermissionInfo pi = new PermissionInfo(); |
| 454 | pi.packageName = sourcePackage.intern(); |
| 455 | pi.name = name.intern(); |
| 456 | pi.icon = readInt(parser, null, "icon", 0); |
| 457 | pi.nonLocalizedLabel = parser.getAttributeValue(null, "label"); |
| 458 | pi.protectionLevel = bp.protectionLevel; |
| 459 | bp.pendingPermissionInfo = pi; |
| 460 | } |
| 461 | out.put(bp.name, bp); |
| 462 | return true; |
| 463 | } |
| 464 | |
| 465 | private static int readInt(XmlPullParser parser, String ns, String name, int defValue) { |
| 466 | String v = parser.getAttributeValue(ns, name); |
| 467 | try { |
| 468 | if (v == null) { |
| 469 | return defValue; |
| 470 | } |
| 471 | return Integer.parseInt(v); |
| 472 | } catch (NumberFormatException e) { |
| 473 | PackageManagerService.reportSettingsProblem(Log.WARN, |
| 474 | "Error in package manager settings: attribute " + name |
| 475 | + " has bad integer value " + v + " at " |
| 476 | + parser.getPositionDescription()); |
| 477 | } |
| 478 | return defValue; |
| 479 | } |
| 480 | |
| 481 | public void writeLPr(@NonNull XmlSerializer serializer) throws IOException { |
| 482 | if (sourcePackageName == null) { |
| 483 | return; |
| 484 | } |
| 485 | serializer.startTag(null, TAG_ITEM); |
| 486 | serializer.attribute(null, ATTR_NAME, name); |
| 487 | serializer.attribute(null, ATTR_PACKAGE, sourcePackageName); |
| 488 | if (protectionLevel != PermissionInfo.PROTECTION_NORMAL) { |
| 489 | serializer.attribute(null, "protection", Integer.toString(protectionLevel)); |
| 490 | } |
| 491 | if (type == BasePermission.TYPE_DYNAMIC) { |
| 492 | final PermissionInfo pi = perm != null ? perm.info : pendingPermissionInfo; |
| 493 | if (pi != null) { |
| 494 | serializer.attribute(null, "type", "dynamic"); |
| 495 | if (pi.icon != 0) { |
| 496 | serializer.attribute(null, "icon", Integer.toString(pi.icon)); |
| 497 | } |
| 498 | if (pi.nonLocalizedLabel != null) { |
| 499 | serializer.attribute(null, "label", pi.nonLocalizedLabel.toString()); |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | serializer.endTag(null, TAG_ITEM); |
| 504 | } |
| 505 | |
| 506 | private static boolean compareStrings(CharSequence s1, CharSequence s2) { |
| 507 | if (s1 == null) { |
| 508 | return s2 == null; |
| 509 | } |
| 510 | if (s2 == null) { |
| 511 | return false; |
| 512 | } |
| 513 | if (s1.getClass() != s2.getClass()) { |
| 514 | return false; |
| 515 | } |
| 516 | return s1.equals(s2); |
| 517 | } |
| 518 | |
| 519 | private static boolean comparePermissionInfos(PermissionInfo pi1, PermissionInfo pi2) { |
| 520 | if (pi1.icon != pi2.icon) return false; |
| 521 | if (pi1.logo != pi2.logo) return false; |
| 522 | if (pi1.protectionLevel != pi2.protectionLevel) return false; |
| 523 | if (!compareStrings(pi1.name, pi2.name)) return false; |
| 524 | if (!compareStrings(pi1.nonLocalizedLabel, pi2.nonLocalizedLabel)) return false; |
| 525 | // We'll take care of setting this one. |
| 526 | if (!compareStrings(pi1.packageName, pi2.packageName)) return false; |
| 527 | // These are not currently stored in settings. |
| 528 | //if (!compareStrings(pi1.group, pi2.group)) return false; |
| 529 | //if (!compareStrings(pi1.nonLocalizedDescription, pi2.nonLocalizedDescription)) return false; |
| 530 | //if (pi1.labelRes != pi2.labelRes) return false; |
| 531 | //if (pi1.descriptionRes != pi2.descriptionRes) return false; |
| 532 | return true; |
| 533 | } |
| 534 | |
| 535 | public boolean dumpPermissionsLPr(@NonNull PrintWriter pw, @NonNull String packageName, |
| 536 | @NonNull Set<String> permissionNames, boolean readEnforced, |
| 537 | boolean printedSomething, @NonNull DumpState dumpState) { |
| 538 | if (packageName != null && !packageName.equals(sourcePackageName)) { |
| 539 | return false; |
| 540 | } |
| 541 | if (permissionNames != null && !permissionNames.contains(name)) { |
| 542 | return false; |
| 543 | } |
| 544 | if (!printedSomething) { |
| 545 | if (dumpState.onTitlePrinted()) |
| 546 | pw.println(); |
| 547 | pw.println("Permissions:"); |
| 548 | printedSomething = true; |
| 549 | } |
| 550 | pw.print(" Permission ["); pw.print(name); pw.print("] ("); |
| 551 | pw.print(Integer.toHexString(System.identityHashCode(this))); |
| 552 | pw.println("):"); |
| 553 | pw.print(" sourcePackage="); pw.println(sourcePackageName); |
| 554 | pw.print(" uid="); pw.print(uid); |
| 555 | pw.print(" gids="); pw.print(Arrays.toString( |
| 556 | computeGids(UserHandle.USER_SYSTEM))); |
| 557 | pw.print(" type="); pw.print(type); |
| 558 | pw.print(" prot="); |
| 559 | pw.println(PermissionInfo.protectionToString(protectionLevel)); |
| 560 | if (perm != null) { |
| 561 | pw.print(" perm="); pw.println(perm); |
| 562 | if ((perm.info.flags & PermissionInfo.FLAG_INSTALLED) == 0 |
| 563 | || (perm.info.flags & PermissionInfo.FLAG_REMOVED) != 0) { |
| 564 | pw.print(" flags=0x"); pw.println(Integer.toHexString(perm.info.flags)); |
| 565 | } |
| 566 | } |
| 567 | if (sourcePackageSetting != null) { |
| 568 | pw.print(" packageSetting="); pw.println(sourcePackageSetting); |
| 569 | } |
| 570 | if (READ_EXTERNAL_STORAGE.equals(name)) { |
| 571 | pw.print(" enforced="); |
| 572 | pw.println(readEnforced); |
| 573 | } |
| 574 | return true; |
| 575 | } |
| 576 | } |