| /* |
| * 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.netlink; |
| |
| import android.annotation.Nullable; |
| |
| import java.net.InetSocketAddress; |
| import java.nio.ByteBuffer; |
| |
| /** |
| * struct inet_diag_req_v2 |
| * |
| * see <linux_src>/include/uapi/linux/inet_diag.h |
| * |
| * struct inet_diag_req_v2 { |
| * __u8 sdiag_family; |
| * __u8 sdiag_protocol; |
| * __u8 idiag_ext; |
| * __u8 pad; |
| * __u32 idiag_states; |
| * struct inet_diag_sockid id; |
| * }; |
| * |
| * @hide |
| */ |
| public class StructInetDiagReqV2 { |
| public static final int STRUCT_SIZE = 8 + StructInetDiagSockId.STRUCT_SIZE; |
| |
| private final byte mSdiagFamily; |
| private final byte mSdiagProtocol; |
| private final byte mIdiagExt; |
| private final byte mPad; |
| private final StructInetDiagSockId mId; |
| private final int mState; |
| public static final int INET_DIAG_REQ_V2_ALL_STATES = (int) 0xffffffff; |
| |
| public StructInetDiagReqV2(int protocol, InetSocketAddress local, InetSocketAddress remote, |
| int family) { |
| this(protocol, local, remote, family, 0 /* pad */, 0 /* extension */, |
| INET_DIAG_REQ_V2_ALL_STATES); |
| } |
| |
| public StructInetDiagReqV2(int protocol, @Nullable InetSocketAddress local, |
| @Nullable InetSocketAddress remote, int family, int pad, int extension, int state) |
| throws NullPointerException { |
| mSdiagFamily = (byte) family; |
| mSdiagProtocol = (byte) protocol; |
| // Request for all sockets if no specific socket is requested. Specify the local and remote |
| // socket address information for target request socket. |
| if ((local == null) != (remote == null)) { |
| throw new NullPointerException("Local and remote must be both null or both non-null"); |
| } |
| mId = ((local != null && remote != null) ? new StructInetDiagSockId(local, remote) : null); |
| mPad = (byte) pad; |
| mIdiagExt = (byte) extension; |
| mState = state; |
| } |
| |
| public void pack(ByteBuffer byteBuffer) { |
| // The ByteOrder must have already been set by the caller. |
| byteBuffer.put((byte) mSdiagFamily); |
| byteBuffer.put((byte) mSdiagProtocol); |
| byteBuffer.put((byte) mIdiagExt); |
| byteBuffer.put((byte) mPad); |
| byteBuffer.putInt(mState); |
| if (mId != null) mId.pack(byteBuffer); |
| } |
| |
| @Override |
| public String toString() { |
| final String familyStr = NetlinkConstants.stringForAddressFamily(mSdiagFamily); |
| final String protocolStr = NetlinkConstants.stringForAddressFamily(mSdiagProtocol); |
| |
| return "StructInetDiagReqV2{ " |
| + "sdiag_family{" + familyStr + "}, " |
| + "sdiag_protocol{" + protocolStr + "}, " |
| + "idiag_ext{" + mIdiagExt + ")}, " |
| + "pad{" + mPad + "}, " |
| + "idiag_states{" + Integer.toHexString(mState) + "}, " |
| + ((mId != null) ? mId.toString() : "inet_diag_sockid=null") |
| + "}"; |
| } |
| } |