Hi Matthieu,
* So basically there is no obligation for the client to try to downgrade from
version 3 to version 2 right ?
Correct - the client is not required to try a different version,
and there are no requirements as to which version the client
should try first.
* What is the behavior of the windows client ?
Not sure, but we can look into this.
* Can you tell us the information if so can it be added as a behavior note ?
Unlikely. Windows behavior notes are for when Windows deviates
from the protocol. When we look into the previous question, if
we find that Windows deviates from the protocol, we will add a
behavior note.
I spoke with Bryan and we can look into the possibility of documenting
a high level description in a forum less formal than the protocol
documents. A blog or a KB article come to mind.
Based on my review of the document, if I was writing a client, I would
implement both v2 and v3. I would have the client try v3 first and then drop
back to v2. I would also allow for the disabling of one of the versions (but
not both) for versatility/performance in known environments.
-Nick
-----Original Message-----
From: Matthieu Patou [mailto:[email protected]]
Sent: Wednesday, September 29, 2010 11:11 AM
To: Nick Meier; [email protected]
Subject: Re: BKRP question/response
On 29/09/2010 20:45, Nick Meier wrote:
> Good Morning Matthieu,
>
> The follow are my findings after reviewing the MS-BKRP document.
>
> Question:
> BKRP defines two version, v2 and v3. If a server does not support the
> version requested by the client, how should the client behave?
>
> Assumptions:
> Older versions of Windows support v2, newer versions of windows supports
> v2 and v3.
>
> Findings:
> Section 3.1.4.1.4 provides a number of points.
> Point 2: If the dwVersion is not supported by the server,
> the server should return
> ERROR_INVALID_PARAMETER
> Also, the server must support at least one
> of the versions.
>
I read this from the server point of view.
> So, if a client tries one version and ERROR_INVALID_PARAMETER is returned,
> the client is free to try another version if the client supports multiple
> versions (and the alternate version is enabled on the client).
>
So basically there is no obligation for the client to try to downgrade from
version 3 to version 2 right ? What is the behavior of the windows client ?
Can you tell us the information if so can it be added as a behavior note ?
Cheers.
Matthieu.
--
Matthieu Patou
Samba Team http://samba.org
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