mirror of
https://github.com/TalAloni/SMBLibrary.git
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92 lines
4 KiB
C#
92 lines
4 KiB
C#
/* Copyright (C) 2014 Tal Aloni <tal.aloni.il@gmail.com>. All rights reserved.
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*
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* You can redistribute this program and/or modify it under the terms of
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* the GNU Lesser Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using Utilities;
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namespace SMBLibrary.SMB1
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{
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/// <summary>
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/// SMB_COM_TRANSACTION_SECONDARY Request
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/// </summary>
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public class TransactionSecondaryRequest : SMB1Command
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{
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public const int SMBParametersLength = 16;
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// Parameters:
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public ushort TotalParameterCount;
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public ushort TotalDataCount;
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protected ushort ParameterCount;
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protected ushort ParameterOffset;
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public ushort ParameterDisplacement;
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protected ushort DataCount;
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protected ushort DataOffset;
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public ushort DataDisplacement;
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// Data:
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// Padding (alignment to 4 byte boundary)
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public byte[] TransParameters; // Trans_Parameters
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// Padding (alignment to 4 byte boundary)
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public byte[] TransData; // Trans_Data
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public TransactionSecondaryRequest() : base()
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{
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}
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public TransactionSecondaryRequest(byte[] buffer, int offset) : base(buffer, offset, false)
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{
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TotalParameterCount = LittleEndianConverter.ToUInt16(this.SMBData, 0);
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TotalDataCount = LittleEndianConverter.ToUInt16(this.SMBData, 2);
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ParameterCount = LittleEndianConverter.ToUInt16(this.SMBData, 4);
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ParameterOffset = LittleEndianConverter.ToUInt16(this.SMBData, 6);
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ParameterDisplacement = LittleEndianConverter.ToUInt16(this.SMBData, 8);
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DataCount = LittleEndianConverter.ToUInt16(this.SMBData, 10);
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DataOffset = LittleEndianConverter.ToUInt16(this.SMBData, 12);
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DataDisplacement = LittleEndianConverter.ToUInt16(this.SMBData, 14);
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TransParameters = ByteReader.ReadBytes(buffer, ParameterOffset, ParameterCount);
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TransData = ByteReader.ReadBytes(buffer, DataOffset, DataCount);
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}
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public override byte[] GetBytes(bool isUnicode)
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{
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ParameterCount = (ushort)TransParameters.Length;
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DataCount = (ushort)TransData.Length;
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// WordCount + ByteCount are additional 3 bytes
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ParameterOffset = (ushort)(SMBHeader.Length + 3 + SMBParametersLength);
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int padding1 = (4 - (ParameterOffset % 4)) % 4;
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ParameterOffset += (ushort)padding1;
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DataOffset = (ushort)(ParameterOffset + ParameterCount);
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int padding2 = (4 - (DataOffset % 4)) % 4;
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DataOffset += (ushort)padding2;
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this.SMBParameters = new byte[SMBParametersLength];
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 0, TotalParameterCount);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 2, TotalDataCount);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 4, ParameterCount);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 6, ParameterOffset);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 8, ParameterDisplacement);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 10, DataCount);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 12, DataOffset);
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LittleEndianWriter.WriteUInt16(this.SMBParameters, 14, DataDisplacement);
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this.SMBData = new byte[ParameterCount + DataCount + padding1 + padding2];
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ByteWriter.WriteBytes(this.SMBData, padding1, TransParameters);
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ByteWriter.WriteBytes(this.SMBData, padding1 + ParameterCount + padding2, TransData);
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return base.GetBytes(isUnicode);
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}
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public override CommandName CommandName
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{
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get
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{
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return CommandName.SMB_COM_TRANSACTION_SECONDARY;
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}
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}
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}
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}
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