[cifs-protocol] [112042751520312] When will clients/applications do a smb2 session reauth

[Tarun Chopra]

[Sreekanth and dochelp to Bcc, Casemail to Cc] 
[Adding Case number in subject]

Hi Metz

I will be assisting you with this inquiry and the case number for follow up is : 112042751520312.

As stated in our specification, "dochelp at microsoft.com" should always be used to engage our team. Any other email alias like "dochelp at winse.microsoft.com" should not be used. We understand that some e-mail systems expand dochelp at microsoft.com to a fully qualified name, such as dochelp at winse.microsoft.com. However, the location of the dochelp at microsoft.com mailbox may move without notice resulting in a change of the fully qualified name. We thank you for bringing this to our attention and appreciate if you can please inform other team members to send mails directly to "dochelp at microsoft.com"

Thanks
Tarun Chopra.


-----Original Message-----
From: Sreekanth Nadendla 
Sent: Friday, April 27, 2012 7:15 AM
To: Stefan (metze) Metzmacher; Interoperability Documentation Help
Cc: cifs-protocol at cifs.org; pfif at tridgell.net; Christian Ambach
Subject: RE: When will clients/applications do a smb2 session reauth

Hello  Stefan,
                      Thank you for your inquiry about file sharing protocols. One of the Open specifications team member will contact you soon.

Regards,
Sreekanth Nadendla
Microsoft Windows Open Specifications


-----Original Message-----
From: Stefan (metze) Metzmacher [mailto:metze at samba.org] 
Sent: Friday, April 27, 2012 7:35 AM
To: Interoperability Documentation Help
Cc: cifs-protocol at cifs.org; pfif at tridgell.net; Christian Ambach
Subject: When will clients/applications do a smb2 session reauth

Hi,

with SMB 2.1 (and higher) it's possible to do a session re-authentication without getting a STATUS_NETWORK_SESSION_EXPIRED. With SMB 2.0 STATUS_REQUEST_NOT_ACCEPTED is returned.

In what situations do clients do a (pro active) reauthentication without getting STATUS_NETWORK_SESSION_EXPIRED from the server?

"3.2.4.2.3.1 Application Requests Reauthenticating a User"
is the related section in [MS-SMB2].

What layers in the client use this feature?
How can I trigger this?

Is the reauthentication only used with the same user account or also to switch a session to a different user (which is possible)?

BTW: is there a reason why <dochelp at winse.microsoft.com> doesn't work anymore?

metze