Wireshark-users: Re: [Wireshark-users] SMB Trans2 FILE_QUERY_INFO Query File Standard Info - what
From: "Surlow, Jim" <[email protected]>
Date: Mon, 26 Feb 2007 09:04:05 -0700

Regarding #2 – I found the following link:  http://msdn.microsoft.com/library/default.asp?url="">


Regarding #1 – Am guessing that the files were written on the unix end and when read from the Windows side it just keeps searching for a Ctrl-Z EOF rather than Ctrl-D EOF, but I haven’t been able to verify this as of yet.


Thought I would update the list before signing off.






From: Surlow, Jim
Sent: Thursday, February 22, 2007 10:01 AM
To: [email protected]
Subject: SMB Trans2 FILE_QUERY_INFO Query File Standard Info - what's going on?


Apologies – as this is more of a problem with SMB client than with Wireshark/Ethereal.  But, as I saw a similar thread from 3/2005 from the list http://www.ethereal.com/lists/ethereal-users/200503/msg00048.html, maybe someone could help me: 


I am seeing hundreds of SMB/Trans2/FILE_QUERY_INFO/Query File Standard Info requests and responses following a file open and prior to the file close. 


The clients are running a custom application in our Citrix environment running on Windows 2003.  We see the same behavior regardless as to whether the file server is Samba, NetApp, or Windows 2000.  The custom application, is just reading ini files – and so that is anywhere between a 2-5 packet exchange.  The fact that we see hundreds of “Query File Standard Info” requests and responses (200-300 could occur in the same half second of time) is very confusing to us.  And of course, it is burying our servers.



1)       Anyone have a clue as to this behavior?

2)       What is the difference between:  Query File Standard Info, Query File Basic Info, Query File EA Info?