[cifs-protocol] [REG:119072621001605] [MS-SMB2] SMB2_NETNAME_NEGOTIATE_CONTEXT_ID

Bryan Burgin bburgin at microsoft.com
Fri Jul 26 17:12:27 UTC 2019

[Dochelp to bcc]

Hi Metze

Thank you for your question.  We created SR 119072621001605 to track this issue.  An engineer will contact you soon.


-----Original Message-----
From: Stefan Metzmacher <metze at samba.org> 
Sent: Friday, July 26, 2019 1:23 AM
To: Interoperability Documentation Help <dochelp at microsoft.com>; cifs-protocol at lists.samba.org

Hi DocHelp,

I just noticed a documentation bug in

   NetName (variable): A null-terminated Unicode string containing the
   server name and specified by the client application.

Windows Server 1903 sends the name without null-termination, see the attached capture.



Hi Steve,

I just contacted dochelp for this and noticed (from reading the code) that the kernel sends null-termination for the SMB2_NETNAME_NEGOTIATE_CONTEXT_ID value.

I think you should fix that and backport it to stable releases, it would be good if all clients would implement it like windows.

I implemented it for Samba here:


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