[cifs-protocol] data checksum value in FRS
Sebastian Canevari
Sebastian.Canevari at microsoft.com
Thu Nov 17 18:12:43 MST 2011
Hi Matthieu,
Thanks for your question.
Someone on our team will follow up with you shortly.
Regards,
Sebastian
Sebastian Canevari | Escalation Engineer | US-CSS Developer Support Core (DSC) Protocol Team
P +1 469 775 7849
One Microsoft Way, 98052, Redmond, WA, USA http://support.microsoft.com
-----Original Message-----
From: cifs-protocol-bounces at cifs.org [mailto:cifs-protocol-bounces at cifs.org] On Behalf Of Matthieu Patou
Sent: Thursday, November 17, 2011 3:48 PM
To: cifs-protocol at samba.org; pfif at tridgell.net; Interoperability Documentation Help
Subject: [cifs-protocol] data checksum value in FRS
Hello Dochelp,
Paragraph 2.2.3.7DATA_EXTENSION_CHECKSUM of MS-FRS1 indiciate about the data checksum:
Data: MUST be a 128-bit MD5 digest of staging file and attributes, as specified in [RFC1321].
See section 2.2.3.10 for how the MD5 digest is constructed on a staging file and attributes.
Section 2.2.3.10 didn't bring much more information, but it seems while looking at a replication (initial + regular) between 2 DCs that the checksum attribute is sometime omitted (it's 16 null bytes).
Like in packet 3286 in the attached trace.
At the opposite in packet 5300 we have a non null checksum, can you explain in which case the checksum can or must be null ?
The trace is attached to this email.
Thanks.
Matthieu.
--
Matthieu Patou
Samba Team
http://samba.org
More information about the cifs-protocol
mailing list