examples from IFS kit

Hello all,

I’m newbie to driver development. I compiled examples from IFS (for XP)
(filespy and sfilter) but sfilter don’t start at all and installation didn’t
pass (the script freezed)

Filespy installed but in DriverEntry

IoCreateDevice( DriverObject,
0,
&nameString,
FILE_DEVICE_DISK_FILE_SYSTEM,
FILE_DEVICE_SECURE_OPEN,
FALSE,
&gControlDeviceObject);

failes with the error code c0000035. As I understand this code means
that “Object Name already exists”

I have WinXP and debugged the driver with SoftIce

Did I do something wrong? Can anybody help?


Roman Kudinov

mailto:xxxxx@rbcmail.ru

Someone else is using the same name. Try changing the name. Or perhaps
you loaded the driver, then recompiled it and tried to load it again?

No matter, if there is a name collision, us an object manager name
walking tool (there is one on www.osronline.com) to confirm this. If
you use the kernel debugger, you can walk through and find the driver
that owns the device object (or follow the sym link if it is a symbolic
link).

Regards,

Tony

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

Looking forward to seeing you at the Next OSR File Systems Class October
18, 2004 in Silicon Valley!

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Roman Kudinov
Sent: Tuesday, June 29, 2004 1:35 PM
To: ntfsd redirect
Subject: [ntfsd] examples from IFS kit

Hello all,

I’m newbie to driver development. I compiled examples from IFS (for XP)
(filespy and sfilter) but sfilter don’t start at all and installation
didn’t
pass (the script freezed)

Filespy installed but in DriverEntry

IoCreateDevice( DriverObject,
0,
&nameString,
FILE_DEVICE_DISK_FILE_SYSTEM,
FILE_DEVICE_SECURE_OPEN,
FALSE,
&gControlDeviceObject);

failes with the error code c0000035. As I understand this code means
that “Object Name already exists”

I have WinXP and debugged the driver with SoftIce

Did I do something wrong? Can anybody help?


Roman Kudinov

mailto:xxxxx@rbcmail.ru


Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

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