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