[cifs-protocol] [REG:113111510952353]RE: [MS-SMB2:2.2.1.x] SYNC vs. ASYNC commands.

Obaid Farooqi obaidf at microsoft.com
Fri Nov 15 14:26:48 MST 2013

Hi Chris:
I'll help you with this issue and will be in touch as soon as I have an answer.

Obaid Farooqi
Escalation Engineer | Microsoft

Exceeding your expectations is my highest priority.  If you would like to provide feedback on your case you may contact my manager at nkang at Microsoft dot com

-----Original Message-----
From: Christopher R. Hertel [mailto:crh at ubiqx.mn.org] 
Sent: Friday, November 15, 2013 2:20 PM
To: Interoperability Documentation Help
Cc: cifs-protocol at samba.org
Subject: [MS-SMB2:2.2.1.x] SYNC vs. ASYNC commands.

Dear Dochelp:

In [MS-SMB2], sections and both describe the Command field in the SMB2 header, and both give a complete list of all SMB2 commands.

Reading section 2.2.1, however, it seems that only the SMB2_CANCEL command uses the ASYNC header format, and that all others use the SYNC format.  If that interpretation is correct, then...

* In section, only SMB2_CANCEL should be listed as a valid command
   for the Command field.

* In section, SMB2_CANCEL should be excluded from the list of
   valid SYNC-format requests.

* Section 2.2.30 should indicate that the ASYNC header should be used
   instead of the SYNC header.

Am I misinterpreting the information in 2.2.1?  Please clarify the circumstances under which the ASYNC header format is used, vs. the SYNC format.


Chris -)-----

"Implementing CIFS - the Common Internet FileSystem" ISBN: 013047116X
Samba Team -- http://www.samba.org/     -)-----   Christopher R. Hertel
jCIFS Team -- http://jcifs.samba.org/   -)-----   ubiqx development, uninq.
ubiqx Team -- http://www.ubiqx.org/     -)-----   crh at ubiqx.mn.org
OnLineBook -- http://ubiqx.org/cifs/    -)-----   crh at ubiqx.org

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