[cifs-protocol] [REG:110102774074009] "description" attribute in AD

[Obaid Farooqi]

Hi Matthias:
We have finished our investigation on your question regarding attribute description. In a future release of MS-ADTS, the following bullet will be added at the end of section 3.1.1.5.3.2 Constraints:

“If the modify operation adds or replaces values of the description attribute on a SAM-specific object (section 3.1.1.5.2.3), and results in more than one value in the attribute, then the modification fails with attributeOrValueExists / ERROR_DS_SINGLE_VALUE_CONSTRAINT”

Please let me know if this answers your question. If it does, I’ll consider this issue resolved.

Obaid Farooqi
Escalation Engineer | Microsoft


-----Original Message-----
From: Matthias Dieter Wallnöfer [mailto:mdw at samba.org]
Sent: Wednesday, October 27, 2010 3:11 PM
To: Interoperability Documentation Help
Cc: cifs-protocol at samba.org
Subject: "description" attribute in AD 

Hi dochelp team, 

the "description" attribute in AD seems very special. Altough defined as multi-valued in the schema it's defacto single-valued.

That means: 
- on LDAP entry add operations you are able to set it multi-valued
- on LDAP entry change operations you aren't - e.g. if you try to replace it multi-valued or perform a multi-valued add you get ERR_ATTRIBUTE_ALREADY_EXISTS.

As far as I know I didn't find much in the docs about this strange behaviour and as far as I can tell it only applies to "description". It would be nice to enhance MS-ADTS regarding it and to start some investigation if it wouldn't be better to really define it as single-valued in the schema.

Greets,
Matthias 

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