[cifs-protocol] Conflicting OIDs
Edgar Olougouna
edgaro at microsoft.com
Mon Jan 25 12:51:28 MST 2010
Andrew,
Thank you for bringing these OID conflicts to our attention.
The following table summarizes the known list of OIDs that Microsoft uses in Active Directory that have conflicting allocations between AD and either the OID allocation hierarchy.
Name in AD
OID in MS-ADA*
Organization
Name registered
OID (if different from AD)
middleName
2.16.840.1.113730.3.1.34
Netscape
ref
thumbnailLogo
2.16.840.1.113730.3.1.36
Netscape
nsLicensedFor
thumbnailPhoto
2.16.840.1.113730.3.1.35
Netscape
changeLog
userSMIMECertificate
2.16.840.1.113730.3.140
Netscape
userSMIMECertificate
2.16.840.1.113730.3.1.40
Our assignment of these OIDs has been around since AD inception in Windows Server 2000. It would not feasible to retroactively change the OIDs due to the resulting compatibility issues. As a result, the OIDs provided in the protocol documents do accurately describe system behaviors and are sufficient to facilitate development of compatible implementations.
In retrospective, the product team has recognized the need for a change in the process for allocating OIDs and avoiding conflicts in the future and has the necessary processes in place to avoid further occurrences.
Best regards,
Edgar
-----Original Message-----
From: Edgar Olougouna
Sent: Wednesday, December 09, 2009 11:35 AM
To: Andrew Bartlett
Cc: cifs-protocol at samba.org; pfif at tridgell.net; Endi Sukma Dewata
Subject: RE: Conflicting OIDs
Andrew,
I am taking care of this and will be updating you as soon as I have news.
Best regards,
Edgar
-----Original Message-----
From: Bill Wesse
Sent: Wednesday, December 09, 2009 7:51 AM
To: Andrew Bartlett; Interoperability Documentation Help
Cc: cifs-protocol at samba.org; pfif at tridgell.net; Endi Sukma Dewata
Subject: RE: Conflicting OIDs
Good morning Andrew - thanks for your question - I have created the below case for us to track our efforts regarding that. One of my colleagues will take ownership and contact you shortly.
SRX091209600017 : [MS-ADA3] Conflicting OIDs
Regards,
Bill Wesse
MCSE, MCTS / Senior Escalation Engineer, US-CSS DSC PROTOCOL TEAM
8055 Microsoft Way
Charlotte, NC 28273
TEL: +1(980) 776-8200
CELL: +1(704) 661-5438
FAX: +1(704) 665-9606
-----Original Message-----
From: Andrew Bartlett [mailto:abartlet at samba.org]
Sent: Tuesday, December 08, 2009 8:44 PM
To: Interoperability Documentation Help
Cc: cifs-protocol at samba.org; pfif at tridgell.net; Endi Sukma Dewata
Subject: Conflicting OIDs
MS-ADA3 2.305 Attribute thumbnailLogo has:
cn: Logo
ldapDisplayName: thumbnailLogo
attributeId: 2.16.840.1.113730.3.1.36
However, this OID is allocated, according to http://www.alvestrand.no/objectid/2.16.840.1.113730.3.1.36.html to Netscape (now Red Hat), and is used for nsLicensedFor.
It appears the official OID for thumbnailLogo is
1.3.6.1.4.1.1466.101.120.36 according to
http://tools.ietf.org/html/draft-ietf-asid-schema-pilot-00
So far, we have found the following OIDs that are allocated to different names between Microsoft's AD implementation and the official
allocations:
#MiddleName has a conflicting OID
2.16.840.1.113730.3.1.34:1.3.6.1.4.1.7165.4.255.1
#defaultGroup has a conflicting OID
1.2.840.113556.1.4.480:1.3.6.1.4.1.7165.4.255.2
#thumbnailPhoto has a conflicting OID
2.16.840.1.113730.3.1.35:1.3.6.1.4.1.7165.4.255.10
#thumbnailLogo has a conflicting OID
2.16.840.1.113730.3.1.36:1.3.6.1.4.1.7165.4.255.11
What I want to know is: What is the full list of OIDs that Microsoft uses in Active Directory that have conflicting allocations between AD and either the OID allocation hierarchy or common practice?
This will assist us as we aim for interoperability, as for each conflict, we must manually remap.
In the long term, we would like to see the AD schema documents annotated with this conflict (both as as summary table and on each attribute), and a process put in place to avoid these kinds of problems in future.
Thanks,
Andrew Bartlett
--
Andrew Bartlett http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Samba Developer, Cisco Inc.
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