| /* |
| * Copyright (C) 2019 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.util; |
| |
| import java.io.FileDescriptor; |
| import java.net.SocketException; |
| |
| /** |
| * Native methods for tethering utilization. |
| * |
| * {@hide} |
| */ |
| public class TetheringUtils { |
| /** |
| * Configures a socket for receiving ICMPv6 router solicitations and sending advertisements. |
| * @param fd the socket's {@link FileDescriptor}. |
| * @param ifIndex the interface index. |
| */ |
| public static native void setupRaSocket(FileDescriptor fd, int ifIndex) |
| throws SocketException; |
| |
| /** |
| * Read s as an unsigned 16-bit integer. |
| */ |
| public static int uint16(short s) { |
| return s & 0xffff; |
| } |
| } |