1 /* 2 * Copyright (C) 2017 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 android.net.netlink; 18 19 import libcore.io.SizeOf; 20 21 import java.nio.ByteBuffer; 22 23 24 /** 25 * struct nfgenmsg 26 * 27 * see <linux_src>/include/uapi/linux/netfilter/nfnetlink.h 28 * 29 * @hide 30 */ 31 public class StructNfGenMsg { 32 public static final int STRUCT_SIZE = 2 + SizeOf.SHORT; 33 34 public static final int NFNETLINK_V0 = 0; 35 36 final public byte nfgen_family; 37 final public byte version; 38 final public short res_id; // N.B.: this is big endian in the kernel 39 40 public StructNfGenMsg(byte family) { 41 nfgen_family = family; 42 version = (byte) NFNETLINK_V0; 43 res_id = (short) 0; 44 } 45 46 public void pack(ByteBuffer byteBuffer) { 47 byteBuffer.put(nfgen_family); 48 byteBuffer.put(version); 49 byteBuffer.putShort(res_id); 50 } 51 } 52
