Hi Hongwei,
Hum it looks ok, but what about the replication between 2 DCs ? the
value should be concidered as a blob of bytes and not as a string no ?
Matthieu.
On 22/08/2011 18:54, Hongwei Sun wrote:
Matthieu/Andrew,
I am checking to see if you have any feedback on the response below. If
not, I will consider this issue resolved.
Thanks!
Hongwei
-----Original Message-----
From: Hongwei Sun
Sent: Monday, August 15, 2011 2:15 PM
To: '[email protected]'
Cc: [email protected]; [email protected]; Michael Ströder; Andrew Bartlett
Subject: [REG:RE: [cifs-protocol] [REG:111062276428612] RE: userParameters
attribute
Hi, Matthieu/Andrew
We completed the investigation on this issue. The userParameters attribute
is typed in AD as a Unicode string, but as previously noted the actual contents
are a binary structure (see section 2.3.1 in MS-TSTS). When the data is set
via MS-SAMR, the data is stored in AD in its untouched entirety. When
querying this attribute via the MS-SAMR protocol, everything works as expected
because the entire contents of the buffer are returned in a byte-counted
UNICODE_STRING structure, thus again no data is lost. When LDAP is used to
query the data however, AD must convert the “string” to a UTF-8 string before
returning it to the client as per 2.5.5.12 MS-ADTS and 6.10 of RFC 2252.
Unfortunately, UTF8 conversion of non-valid Unicode characters can result in a
lossy conversion, which is what appears to have happened here. Internally,
Windows code does not use LDAP to query the userParameters attribute, which is
why this issue has gone so long unnoticed.
Please let me know if you have more questions.
Thanks!
Hongwei
-----Original Message-----
From: Matthieu Patou [mailto:[email protected]]
Sent: Tuesday, August 09, 2011 4:39 PM
To: Hongwei Sun
Cc: [email protected]; [email protected]; Michael Ströder; Andrew Bartlett
Subject: Re: [cifs-protocol] [REG:111062276428612] RE: userParameters attribute
Hi Hongwei,
Any news on this subject ?
Matthieu.
On 07/07/2011 02:15, Matthieu Patou wrote:
Hi Hongwei,
I updated the bug report.
On 28/06/2011 22:40, Hongwei Sun wrote:
Matthieu,
This is fine. We will wait for that. I also want to confirm
that we don't need any more data to be produced, we just need the
steps you used to produce the data output in the bug.
Thanks!
Hongwei
-----Original Message-----
From: Matthieu Patou [mailto:[email protected]]
Sent: Tuesday, June 28, 2011 11:57 AM
To: Hongwei Sun
Cc: Andrew Bartlett; [email protected]; [email protected];
Michael Ströder
Subject: Re: [cifs-protocol] [REG:111062276428612] RE: userParameters
attribute
On 28/06/2011 19:06, Hongwei Sun wrote:
Matthieu,
Any update ? I just checked the bug and it doesn't have any
new information.
Nope, I'm busy trying to add a new DC to my production.
Can you postpone this up to 2 weeks I have to finish some other stuff
in hurry.
Matthieu
Thanks!
Hongwei
-----Original Message-----
From: Hongwei Sun
Sent: Wednesday, June 22, 2011 4:42 PM
To: 'Matthieu Patou'
Cc: Andrew Bartlett; [email protected]; [email protected];
Michael Ströder
Subject: RE: [cifs-protocol] [REG:111062276428612] RE:
userParameters attribute
Either way is fine. You can send it here and save it to the bug
so all the history will be there too.
Hongwei
-----Original Message-----
From: Matthieu Patou [mailto:[email protected]]
Sent: Wednesday, June 22, 2011 4:39 PM
To: Hongwei Sun
Cc: Andrew Bartlett; [email protected]; [email protected];
Michael Ströder
Subject: Re: [cifs-protocol] [REG:111062276428612] RE:
userParameters attribute
On 23/06/2011 01:29, Hongwei Sun wrote:
Andrew, Matthieu,
I noticed that Matthieu updated the LDAP representation
blob and the SAMR network capture that shows the UTF16 string in
SamrSetInformationUser in the bug
(https://bugzilla.samba.org/show_bug.cgi?id=8077). Could you
tell us the exact steps you used to do the testing ? The product
team needs that to have the same repro for the investigation.
Thanks!
Here or in the bug ?
Matthieu.
Hongwei
-----Original Message-----
From: Andrew Bartlett [mailto:[email protected]]
Sent: Monday, June 20, 2011 8:09 PM
To: Hongwei Sun
Cc: Stefan (metze) Metzmacher; [email protected];
[email protected]; Michael Ströder
Subject: RE: [REG: 111052361876778] RE: userParameters attribute
On Mon, 2011-06-20 at 20:14 +0000, Hongwei Sun wrote:
Metze/Andrew,
We updated the description of userParameters in MS-ADA3 and
other related documents to clarify that it is not saved as utf16
or utf8 Unicode strings as below. They will appear in the next
release of the open protocol documents.
The key point that seems to be brushed over here is: how is this
'not UTF8' string in LDAP translated into and from the
representation sent over SAMR (which appears to be UTF16)?
For example, please explain how the values seen in this bug get
translated between each other. At a first glance, the translation
does indeed appear to be that between UTF16 and UTF8, so if they
are not
UTF16 and UTF8 strings, what are they, and what defines the
translation?
https://bugzilla.samba.org/show_bug.cgi?id=8077
Andrew Bartlett
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Matthieu Patou
Samba Team http://samba.org
Private repo http://git.samba.org/?p=mat/samba.git;a=summary
--
Matthieu Patou
Samba Team http://samba.org
Private repo http://git.samba.org/?p=mat/samba.git;a=summary
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