[cifs-protocol] [Pfif] SMB1 Trans2SetPathInfo() FileEndOfFileInformation is not enforcing share modes

Tim Prouty tim.prouty at isilon.com
Tue Dec 1 10:34:19 MST 2009

On Nov 30, 2009, at 6:06 PM, Tim Prouty wrote:

> Hi Bill,
> I have done some more investigation on this issue, particularly around
> doing a Trans2SetPathInfo() with the documented
> FileEndOfFileInformation (0x104) level.  It returns what I would
> expect to be an acceptable error for an unknown info level.  I have
> attached a trace that shows this being done against a win7 server, but
> I have a question about what the server is returning.  The packets of
> interest are 39/40:
> 1. Packet 40 appears to have the WordCount and ByteCount truncated,
>   making the packet smaller than normal minimum size of 35?  Is this
>   intended behavior that other servers should implement?
> Additionally a DOS Error is returned instead of a standard NT_STATUS
> error.  MS-CIFS does say that a DOS error or an NT_STATUS error may be
> returned, but I don't see any indication in the documentation of when
> a DOS error should be returned instead of an NT_STATUS error.  Is it
> possible to make this explicit in the docs or is this a case where
> it's purposefully left ambiguous?
> Thanks!
> -Tim

Here's the pcap referenced in the previous email.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: trans2setpathinfo_against_win7_2.pcap
Type: application/octet-stream
Size: 9718 bytes
Desc: not available
URL: <http://lists.samba.org/pipermail/cifs-protocol/attachments/20091201/9be63f8b/attachment-0001.obj>
-------------- next part --------------

More information about the cifs-protocol mailing list