1 /* 2 * Copyright (C) 2019 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 com.android.net.module.util.netlink; 18 19 import java.nio.ByteBuffer; 20 21 /** 22 * struct inet_diag_msg 23 * 24 * see <linux_src>/include/uapi/linux/inet_diag.h 25 * 26 * struct inet_diag_msg { 27 * __u8 idiag_family; 28 * __u8 idiag_state; 29 * __u8 idiag_timer; 30 * __u8 idiag_retrans; 31 * struct inet_diag_sockid id; 32 * __u32 idiag_expires; 33 * __u32 idiag_rqueue; 34 * __u32 idiag_wqueue; 35 * __u32 idiag_uid; 36 * __u32 idiag_inode; 37 * }; 38 * 39 * @hide 40 */ 41 public class StructInetDiagMsg { 42 public static final int STRUCT_SIZE = 4 + StructInetDiagSockId.STRUCT_SIZE + 20; 43 private static final int IDIAG_UID_OFFSET = StructNlMsgHdr.STRUCT_SIZE + 4 44 + StructInetDiagSockId.STRUCT_SIZE + 12; 45 public int idiag_uid; 46 47 /** 48 * Parse inet diag netlink message from buffer. 49 */ parse(ByteBuffer byteBuffer)50 public static StructInetDiagMsg parse(ByteBuffer byteBuffer) { 51 StructInetDiagMsg struct = new StructInetDiagMsg(); 52 struct.idiag_uid = byteBuffer.getInt(IDIAG_UID_OFFSET); 53 return struct; 54 } 55 56 @Override toString()57 public String toString() { 58 return "StructInetDiagMsg{ " 59 + "idiag_uid{" + idiag_uid + "}, " 60 + "}"; 61 } 62 } 63