2.5.3 FileFsDriverPathInformation
This information class is used locally to query if a given driver is in the I/O path for a file system volume.
A FILE_FS_DRIVER_PATH_INFORMATION data element, defined as follows, is returned to the caller.
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DriverInPath |
Reserved |
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DriverNameLength |
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DriverName (variable) |
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DriverInPath (1 byte): A Boolean (section 2.1.8) value. Set to TRUE if the driver is in the I/O path for the file system volume; set to FALSE otherwise.
Reserved (3 bytes): Reserved for alignment. This field can contain any value and MUST be ignored.
DriverNameLength (4 bytes): A 32-bit unsigned integer that contains the length of the DriverName string.
DriverName (variable): A variable-length Unicode field containing the name of the driver for which to query. This sequence of Unicode characters MUST NOT be null-terminated.
This operation returns a status code as specified in section 2.2. Upon success, the status code returned by the function that processes this file system information class is STATUS_SUCCESS. The most common error codes are listed in the following table.
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Error code |
Meaning |
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STATUS_INFO_LENGTH_MISMATCH 0xC0000004 |
The specified information record length does not match the length that is required for the specified information class. |