| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.net.wifi.util; |
| |
| import android.content.ApexEnvironment; |
| import android.content.pm.ApplicationInfo; |
| import android.os.Build; |
| import android.os.UserHandle; |
| import android.sysprop.VndkProperties; |
| import android.util.Log; |
| |
| import java.io.File; |
| |
| /** |
| * Provides access to environment variables. |
| * |
| * Note: @hide methods copied from android.os.Environment |
| */ |
| public class Environment { |
| /** |
| * Wifi apex name. |
| */ |
| private static final String WIFI_APEX_NAME = "com.android.wifi"; |
| |
| private static final String TAG = "Environment"; |
| |
| /** |
| * The path where the Wifi apex is mounted. |
| * Current value = "/apex/com.android.wifi" |
| */ |
| private static final String WIFI_APEX_PATH = |
| new File("/apex", WIFI_APEX_NAME).getAbsolutePath(); |
| |
| /** |
| * Wifi shared folder. |
| */ |
| public static File getWifiSharedDirectory() { |
| return ApexEnvironment.getApexEnvironment(WIFI_APEX_NAME).getDeviceProtectedDataDir(); |
| } |
| |
| /** |
| * Wifi user specific folder. |
| */ |
| public static File getWifiUserDirectory(int userId) { |
| return ApexEnvironment.getApexEnvironment(WIFI_APEX_NAME) |
| .getCredentialProtectedDataDirForUser(UserHandle.of(userId)); |
| } |
| |
| /** |
| * Returns true if the app is in the Wifi apex, false otherwise. |
| * Checks if the app's path starts with "/apex/com.android.wifi". |
| */ |
| public static boolean isAppInWifiApex(ApplicationInfo appInfo) { |
| return appInfo.sourceDir.startsWith(WIFI_APEX_PATH); |
| } |
| |
| /** |
| * Return whether the VNDK version of the vendor partition is newer than the given API level. |
| * If the property is set to non-integer value, this means the vendor partition is using |
| * current API level and true is returned. |
| * |
| * Note: reference from com.android.compatibility.common.util.PropertyUtil; |
| */ |
| public static boolean isVndkApiLevelNewerThan(int apiLevel) { |
| final String version = VndkProperties.vendor_vndk_version().orElse(""); |
| int vndkApiLevel = 0; |
| if (!version.isEmpty()) { |
| try { |
| vndkApiLevel = Integer.parseInt(version); |
| } catch (NumberFormatException ignore) { |
| if (!("REL".equals(Build.VERSION.CODENAME))) { |
| Log.d(TAG, "developer build, bypass the vndk version check"); |
| return true; |
| } |
| } |
| } |
| return vndkApiLevel > apiLevel; |
| } |
| } |