I have a requirement to do raw reads and writes to a physical drive at the
kernel level. I am opening a handle to the drives using ZwCreateFile by
passing in “\DosDevices\PhysicalDriveX” where “X” is “0”, “1”, etc. I can
successfully open and read a drive using this technigue, but my
ZwCreateFile call always fails when I attempt to open the drive for
writing. The error returned varies between “STATUS_INVALID_PARAMETER”,
“STATUS_ACCESS_DENIED”, and “STATUS_OBJECT_NAME_NOT_FOUND” depending on how
I have the parameters set. Has anyone tried this and can provide me with
the proper function syntax.
Thanks in advance,
Craig Denbrook
Sparta, Inc.
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Craig,
you wrote on Saturday, February 16, 2002, 12:19:29:
cmsc> I have a requirement to do raw reads and writes to a physical
cmsc> drive at the kernel level. I am opening a handle to the drives
cmsc> using ZwCreateFile by passing in “\DosDevices\PhysicalDriveX”
cmsc> where “X” is “0”, “1”, etc. I can successfully open and read a
cmsc> drive using this technigue, but my ZwCreateFile call always fails
cmsc> when I attempt to open the drive for writing. The error returned
cmsc> varies between “STATUS_INVALID_PARAMETER”, “STATUS_ACCESS_DENIED”,
cmsc> and “STATUS_OBJECT_NAME_NOT_FOUND” depending on how I have the
cmsc> parameters set. Has anyone tried this and can provide me with the
cmsc> proper function syntax.
Make sure you have the sharing options set to
FILE_SHARE_READ|FILE_SHARE_WRITE.
Ralf.
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