com.hierynomus.mssmb2.messages.SMB2IoctlRequest Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of smbj Show documentation
SMB2 protocol library for communication with Windows servers
There is a newer version: 0.13.0
/*
 * Copyright (C)2016 - SMBJ Contributors
 *
 * 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 com.hierynomus.mssmb2.messages;

import com.hierynomus.mssmb2.*;
import com.hierynomus.smb.SMBBuffer;
import com.hierynomus.smbj.io.ByteChunkProvider;

/**
 * [MS-SMB2].pdf 2.2.31 SMB2 IOCTL Request
 */
public class SMB2IoctlRequest extends SMB2MultiCreditPacket {

    private final long controlCode;
    private final SMB2FileId fileId;
    private final ByteChunkProvider inputData;
    private final boolean fsctl;
    private long maxOutputResponse;

    public SMB2IoctlRequest(
        SMB2Dialect negotiatedDialect, long sessionId, long treeId,
        long controlCode, SMB2FileId fileId,
        ByteChunkProvider inputData, boolean fsctl, int maxOutputResponse
    ) {
        super(57, negotiatedDialect, SMB2MessageCommandCode.SMB2_IOCTL, sessionId, treeId, Math.max(inputData.bytesLeft(), maxOutputResponse));
        this.controlCode = controlCode;
        this.fileId = fileId;
        this.inputData = inputData;
        this.fsctl = fsctl;
        this.maxOutputResponse = maxOutputResponse;
    }

    @Override
    protected void writeTo(SMBBuffer smbBuffer) {
        smbBuffer.putUInt16(structureSize); // StructureSize (2 bytes)
        smbBuffer.putReserved2(); // Reserved (2 bytes)
        smbBuffer.putUInt32(controlCode); // CtlCode (4 bytes)
        fileId.write(smbBuffer);  // FileId (16 bytes)

        int offset = SMB2Header.STRUCTURE_SIZE + 56;
        int inputDataSize = inputData.bytesLeft();
        if (inputDataSize > 0) {
            smbBuffer.putUInt32(offset); // InputOffset (4 bytes)
            smbBuffer.putUInt32(inputDataSize); // InputCount (4 bytes)
        } else {
            smbBuffer.putUInt32(0); // InputOffset (4 bytes)
            smbBuffer.putUInt32(0); // InputCount (4 bytes)
        }
        smbBuffer.putUInt32(0); // MaxInputResponse (4 bytes)
        smbBuffer.putUInt32(0); // OutputOffset (4 bytes)
        smbBuffer.putUInt32(0); // OutputCount (4 bytes)
        smbBuffer.putUInt32(maxOutputResponse); // MaxOutputResponse (4 bytes)
        smbBuffer.putUInt32(fsctl ? 1 : 0); // Flags (4 bytes)
        smbBuffer.putReserved4(); // Reserved (4 bytes)
        while (inputData.bytesLeft() > 0) {
            inputData.writeChunk(smbBuffer);
        }
    }
}