RE: [ntfsd] ZwFsControlFileHi,
I have a filter driver on Windows 20000 which filters the lanman redirector and on some machines I am seeing IOCTL 0x140FD3 frome somewhere. As this does not happen all the time but sometimes the redirector returns STATUS_INVALID_PARAMETER. IBecuase this happens unpredicatably I am having some trouble identifying the source of this IOCTL and the reason why it fails> I was wondering if anyone out there has any ideas about this.
Thanks
Gordon
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Everything I can say is:
this must be defined by CTL_CODE() macro with these parameters:
FILE_DEVICE_NETWORK_FILE_SYSTEM,??? [0x0014…]
1012,??? [0x…0FD0]
METHOD_NEITHER,??? [0x…3]
FILE_ANY_ACCESS,??? [0x…0…]
but I can’t tell you any detail because I don’t know what it is.
There is no reference in DDK, IFS kit …
?
Paul
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Gordon
Sent: Tuesday, June 05, 2001 6:46 PM
To: File Systems Developers
Subject: [ntfsd] IOCTL 0x140FD3
Hi,
I have a filter driver on Windows 20000 which filters the lanman
redirector and on some machines I am seeing IOCTL 0x140FD3 frome
somewhere. As this does not happen all the time?but sometimes
the?redirector returns STATUS_INVALID_PARAMETER.?IBecuase this?happens
unpredicatably I ?am having some trouble identifying the source of this
IOCTL and the reason why it fails> I was wondering if anyone out there
has any ideas about this.
?
Thanks
Gordon
??
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RE: [ntfsd] ZwFsControlFileYes Thankyou Paul I had deduced that and like yourself could not find any references in the ifs kit or the DDK.
On one of the test machines (workstattion) it happens periodicaly for a time and then stops. On the other (server) it has stopped alltogether although this machine is on a much smaller network.
It’s a puzzle!
Cheers
Gordon
----- Original Message -----
From: Hrdina Pavel
To: File Systems Developers
Sent: 05 June 2001 18:20
Subject: [ntfsd] RE: IOCTL 0x140FD3
Everything I can say is:
this must be defined by CTL_CODE() macro with these parameters:
FILE_DEVICE_NETWORK_FILE_SYSTEM, [0x0014…]
1012, [0x…0FD0]
METHOD_NEITHER, [0x…3]
FILE_ANY_ACCESS, [0x…0…]
but I can’t tell you any detail because I don’t know what it is.
There is no reference in DDK, IFS kit …
Paul
-----Original Message-----
From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com]On Behalf Of Gordon
Sent: Tuesday, June 05, 2001 6:46 PM
To: File Systems Developers
Subject: [ntfsd] IOCTL 0x140FD3
Hi,
I have a filter driver on Windows 20000 which filters the lanman redirector and on some machines I am seeing IOCTL 0x140FD3 frome somewhere. As this does not happen all the time but sometimes the redirector returns STATUS_INVALID_PARAMETER. IBecuase this happens unpredicatably I am having some trouble identifying the source of this IOCTL and the reason why it fails> I was wondering if anyone out there has any ideas about this.
Thanks
Gordon
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Gordon, I have some another idea.
Maybe you should trace from the dispatch when you get this
to identify the caller which is responsible to understand this FSCTL.
The the path to find out what?it is can then be much more shorter.
?
Paul
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Gordon
Sent: Tuesday, June 05, 2001 9:31 PM
To: File Systems Developers
Subject: [ntfsd] RE: IOCTL 0x140FD3
Yes Thankyou Paul I had deduced that and like yourself could not find
any references in the ifs kit or the DDK.
?
On one of the test machines (workstattion) it happens periodicaly for a
time and then stops. On the other (server) it has stopped alltogether
although this machine is on a much smaller network.
?
It’s a puzzle!
?
Cheers
Gordon
?
----- Original Message -----
From: Hrdina Pavel
To: File Systems Developers
Sent: 05 June 2001 18:20
Subject: [ntfsd] RE: IOCTL 0x140FD3
Everything I can say is:
this must be defined by CTL_CODE() macro with these parameters:
FILE_DEVICE_NETWORK_FILE_SYSTEM,??? [0x0014…]
1012,??? [0x…0FD0]
METHOD_NEITHER,??? [0x…3]
FILE_ANY_ACCESS,??? [0x…0…]
but I can’t tell you any detail because I don’t know what it is.
There is no reference in DDK, IFS kit …
?
Paul
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Gordon
Sent: Tuesday, June 05, 2001 6:46 PM
To: File Systems Developers
Subject: [ntfsd] IOCTL 0x140FD3
Hi,
I have a filter driver on Windows 20000 which filters the lanman
redirector and on some machines I am seeing IOCTL 0x140FD3 frome
somewhere. As this does not happen all the time?but sometimes
the?redirector returns STATUS_INVALID_PARAMETER.?IBecuase this?happens
unpredicatably I ?am having some trouble identifying the source of this
IOCTL and the reason why it fails> I was wondering if anyone out there
has any ideas about this.
?
Thanks
Gordon
??
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RE: [ntfsd] ZwFsControlFileHi again,
I have tracked the problem to where the STATUS_INVALID_PARAMETER is returned. It is deep with in the redirector code in a routine MRxSmbCscIoctlCopyChunk
At the point of failure the routine seems to be testing for a flak value 0x20 in one if the internal data structures. In my case this falg is not set. With my filter removed everything is OK.
I suspect that what my filter does in the create path has upset things.
I if anyone has any ideas at all I would be grateful.
Thanks
Gordon
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