RxInferFileType function (fcb.h)

RxInferFileType tries to infer the file type (directory or non-directory) from a member in the RX_CONTEXT structure.

Syntax

RX_FILE_TYPE RxInferFileType(
  [in] IN PRX_CONTEXT RxContext
);

Parameters

[in] RxContext

A pointer to the RX_CONTEXT structure.

Return value

RxInferFileType returns the storage type implied by the open.

Return code	Description
FileTypeDirectory	The file type is a directory.
FileTypeFile	The file type is a file.
FileTypeNotYetKnown	The file type could not be determined. If RxInferFileType cannot determine the file type, this routine returns this value.

Remarks

RxInferFileType tries to infer the file type (directory or non-directory) from the Create.NtCreateParameters.CreateOptions member in the RX_CONTEXT structure.

The RxInferFileType routine is not called internally by RDBSS. The RxInferFileType routine might be used as a helper routine by a network mini-redirector driver in the MRxCreate routine provided by the network mini-redirector. MRxCreate would normally be called when an I/O request packet is received for IRP_MJ_CREATE. This IRP is normally received by RDBSS in response to a user-mode application requesting a file open or create operation. It is also possible for another kernel driver to issue such an IRP.

Requirements

Requirement	Value
Target Platform	Desktop
Header	fcb.h (include Rxcontx.h, Nodetype.h, Mrxfcb.h, Fcb.h)
IRQL	<= APC_LEVEL

See also

MRxCreate

RX_CONTEXT