Cracking rename operations

NTFSD
1

Gentlefolk

Has anyone else noticed that the handling of renames seems to have changed
from W2K to W2K3. I’ve implemented my code to the osr insider
http://www.osr.com/ntinsider/1997/rename.htm and its great on W2K. However
on W2K3, I am seeing some rename drop out as a simple rename, but its
wrong. Here a concrete example.

Say I am running on some W2K3 machine X with say C:\adir shared as adir.
In \X\adir I have a file called afile, \X\adir\afile. If on some other
machine Y I do
move \X\adir\afile \X\adir\afile2
then I get a “Simple Rename”, where the FILE_RENAME_INFORMATION.FileName
contains “afile2”. So I bomb down the Simple Rename path, shove C:\ at the
front as one does, and end up with “C:\afile2” as the target of course,
which is wrong.

Has anyone else come across this? Does anyone have the solution? Your
advice as ever very much appreciated.

Thanks
Lyndon

2

Gentlefolk, please, forget that post. I think I can, err, see what the
problem here is … for the first time my code has seen a “Simple Rename”,
(on W2K in this scenario I get a “RelativeRename”) I really dont think my
code ever saw a “Simple Rename” before. Well, now I can see where that
code is flakey (doesnt prepend the path from the source of the rename),
and, well, now it, err, seems to be just fine. Oh, well, I guess it is
Friday afternoon here :wink:

Cheers, Lyndon

3

Do you see a root directory handle? If so, then that’s not the simple
rename case.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

-----Original Message-----
From: Lyndon J. Clarke [mailto:xxxxx@neverfailgroup.com]
Sent: Friday, August 29, 2003 10:48 AM
To: File Systems Developers
Subject: [ntfsd] Cracking rename operations

Gentlefolk

Has anyone else noticed that the handling of renames seems to have changed
from W2K to W2K3. I’ve implemented my code to the osr insider
http://www.osr.com/ntinsider/1997/rename.htm and its great on W2K. However
on W2K3, I am seeing some rename drop out as a simple rename, but its
wrong. Here a concrete example.

Say I am running on some W2K3 machine X with say C:\adir shared as adir.
In \X\adir I have a file called afile, \X\adir\afile. If on some other
machine Y I do
move \X\adir\afile \X\adir\afile2
then I get a “Simple Rename”, where the FILE_RENAME_INFORMATION.FileName
contains “afile2”. So I bomb down the Simple Rename path, shove C:\ at the
front as one does, and end up with “C:\afile2” as the target of course,
which is wrong.

Has anyone else come across this? Does anyone have the solution? Your
advice as ever very much appreciated.

Thanks
Lyndon

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4

Nope, no root handle, nowhere to be seen. I do see a guy with a red face,
in the mirror like :wink: