/// <summary> /// to create a Trans2QueryFileInformation request packet. /// </summary> /// <param name="messageId">This field SHOULD be the multiplex ID that is used to associate a response with a /// request.</param> /// <param name="uid">This field SHOULD identify the authenticated instance of the user.</param> /// <param name="treeId">This field identifies the subdirectory (or tree) on the server that the client is /// accessing.</param> /// <param name="flags">An 8-bit field of 1-bit flags describing various features in effect for the /// message</param> /// <param name="flags2">A 16-bit field of 1-bit flags that represent various features in effect for the /// message. Unspecified bits are reserved and MUST be zero.</param> /// <param name="maxParameterCount">The maximum number of parameter bytes that the client will accept in the /// transaction reply. The server MUST NOT return more than this number of parameter bytes.</param> /// <param name="maxDataCount">The maximum number of data bytes that the client will accept in the transaction /// reply. The server MUST NOT return more than this number of data bytes.</param> /// <param name="maxSetupCount">Maximum number of setup bytes that the client will accept in the transaction /// reply. The server MUST NOT return more than this number of setup bytes</param> /// <param name="smbParametersFlags">A set of bit flags that alter the behavior of the requested operation. /// Unused bit fields MUST be set to zero by the client sending the request, and MUST be ignored by the server /// receiving the request. The client MAY set either or both of the following bit flags</param> /// <param name="timeout">The number of milliseconds the server SHOULD wait for completion of the transaction /// before generating a timeout. A value of zero indicates that the operation MUST NOT block.</param> /// <param name="informationLevel">This field contains an information level code, which determines the /// information contained in the response.</param> /// <param name="fid">This field MUST contain a valid FID returned from a previously successful SMB open /// command</param> /// <param name="name">This field is present but not used in SMB_COM_TRANSACTION2 requests. If Unicode support /// has been negotiated, then this field MUST be aligned to a 16-bit boundary and MUST consist of two null bytes /// (a null-terminator). If Unicode support has not been negotiated this field will contain only one null /// byte.</param> /// <param name="extendedAttributeList">This field MUST contain an array of extended file attribute name value /// pairs.</param> /// <returns>a Trans2QueryFileInformation request packet</returns> public SmbTrans2QueryFileInformationRequestPacket CreateTrans2QueryFileInformationRequest( ushort messageId, ushort uid, ushort treeId, SmbFlags flags, SmbFlags2 flags2, ushort maxParameterCount, ushort maxDataCount, byte maxSetupCount, Trans2SmbParametersFlags smbParametersFlags, uint timeout, string name, ushort fid, QueryInformationLevel informationLevel, SMB_GEA[] extendedAttributeList) { if (name == null) { name = string.Empty; } if (extendedAttributeList == null) { extendedAttributeList = new SMB_GEA[0]; } SmbTrans2QueryFileInformationRequestPacket packet = new SmbTrans2QueryFileInformationRequestPacket(); packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_TRANSACTION2, messageId, uid, treeId, flags, flags2); // Set Smb_Parameters SMB_COM_TRANSACTION2_Request_SMB_Parameters smbParameters = new SMB_COM_TRANSACTION2_Request_SMB_Parameters(); smbParameters.MaxParameterCount = maxParameterCount; smbParameters.MaxDataCount = maxDataCount; smbParameters.MaxSetupCount = maxSetupCount; smbParameters.Flags = (ushort)smbParametersFlags; smbParameters.Timeout = timeout; smbParameters.SetupCount = 1; // the correct count in word of the Setup is always 1. smbParameters.Setup = new ushort[] { (ushort)Trans2SubCommand.TRANS2_QUERY_FILE_INFORMATION }; smbParameters.WordCount = (byte)(CifsMessageUtils.GetSize<SMB_COM_TRANSACTION2_Request_SMB_Parameters>( smbParameters) / NumBytesOfWord); // Set Smb_Data SMB_COM_TRANSACTION2_Request_SMB_Data smbData = new SMB_COM_TRANSACTION2_Request_SMB_Data(); smbData.Name = CifsMessageUtils.ToSmbStringBytes(name, (flags2 & SmbFlags2.SMB_FLAGS2_UNICODE) == SmbFlags2.SMB_FLAGS2_UNICODE); // Set Trans2_Parameters TRANS2_QUERY_FILE_INFORMATION_Request_Trans2_Parameters trans2Parameters = new TRANS2_QUERY_FILE_INFORMATION_Request_Trans2_Parameters(); trans2Parameters.FID = fid; trans2Parameters.InformationLevel = informationLevel; // Set Trans2_Data TRANS2_QUERY_PATH_INFORMATION_Request_Trans2_Data trans2Data = new TRANS2_QUERY_PATH_INFORMATION_Request_Trans2_Data(); trans2Data.GetExtendedAttributeList.GEAList = extendedAttributeList; trans2Data.GetExtendedAttributeList.SizeOfListInBytes = (uint)CifsMessageUtils.GetSize<uint>(trans2Data.GetExtendedAttributeList.SizeOfListInBytes); trans2Data.GetExtendedAttributeList.SizeOfListInBytes += CifsMessageUtils.GetSmbQueryEAListSize(extendedAttributeList); packet.SmbParameters = smbParameters; packet.SmbData = smbData; packet.Trans2Parameters = trans2Parameters; packet.Trans2Data = trans2Data; packet.UpdateCountAndOffset(); return packet; }
/// <summary> /// to decode the Trans2 parameters: from the general Trans2Parameters to the concrete Trans2 Parameters. /// </summary> protected override void DecodeTrans2Parameters() { if (this.smbData.Trans2_Parameters != null) { this.trans2Parameters = CifsMessageUtils.ToStuct< TRANS2_QUERY_FILE_INFORMATION_Request_Trans2_Parameters>( this.smbData.Trans2_Parameters); } }