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/*
* Copyright (C) 2018 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;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.annotation.TestApi;
import android.content.Context;
import android.os.IBinder;
import android.os.ServiceManager;
import com.android.net.module.util.PermissionUtils;
/**
* Constants and utilities for client code communicating with the network stack service.
* @hide
*/
@SystemApi
public class NetworkStack {
/**
* Permission granted only to the NetworkStack APK, defined in NetworkStackStub with signature
* protection level.
* @hide
*/
@SystemApi
public static final String PERMISSION_MAINLINE_NETWORK_STACK =
"android.permission.MAINLINE_NETWORK_STACK";
@Nullable
private static volatile IBinder sMockService;
/**
* Get an {@link IBinder} representing the NetworkStack stable AIDL Interface, if registered.
* @hide
*/
@Nullable
@SystemApi
public static IBinder getService() {
final IBinder mockService = sMockService;
if (mockService != null) return mockService;
return ServiceManager.getService(Context.NETWORK_STACK_SERVICE);
}
/**
* Set a mock service for testing, to be returned by future calls to {@link #getService()}.
*
* <p>Passing a {@code null} {@code mockService} resets {@link #getService()} to normal
* behavior.
* @hide
*/
@TestApi
public static void setServiceForTest(@Nullable IBinder mockService) {
sMockService = mockService;
}
private NetworkStack() {}
/**
* If the NetworkStack, MAINLINE_NETWORK_STACK are not allowed for a particular process, throw a
* {@link SecurityException}.
*
* @param context {@link android.content.Context} for the process.
*
* @hide
*
* @deprecated Use {@link PermissionUtils#enforceNetworkStackPermission} instead.
*
* TODO: remove this method and let the users call to PermissionUtils directly.
*/
@Deprecated
public static void checkNetworkStackPermission(final @NonNull Context context) {
PermissionUtils.enforceNetworkStackPermission(context);
}
/**
* If the NetworkStack, MAINLINE_NETWORK_STACK or other specified permissions are not allowed
* for a particular process, throw a {@link SecurityException}.
*
* @param context {@link android.content.Context} for the process.
* @param otherPermissions The set of permissions that could be the candidate permissions , or
* empty string if none of other permissions needed.
* @hide
*
* @deprecated Use {@link PermissionUtils#enforceNetworkStackPermissionOr} instead.
*
* TODO: remove this method and let the users call to PermissionUtils directly.
*/
@Deprecated
public static void checkNetworkStackPermissionOr(final @NonNull Context context,
final @NonNull String... otherPermissions) {
PermissionUtils.enforceNetworkStackPermissionOr(context, otherPermissions);
}
}
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