Oops correction here, I spaced for a second. The value for Property Sets in
validAccesses is a combination of ACTRL_DS_WRITE_PROP + ACTRL_DS_READ_PROP
so the value is 32 + 16 or 48, not just 32.


--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm 
 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of joe
Sent: Tuesday, June 20, 2006 10:44 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] Question on rightsguid

There are three things currently handled in the extended-rights container of
objectclass controlAccessRight. 

Validated Writes
Property Sets
Extended Rights

These are differentiated by the validAccesses attribute[1]. Quickly it lays
out like

Validated Writes have validAccess value of 8
Property Sets have validAccesses value of 32
Extended Rights have validAccess value of 256

While they are the same objectclass and in the same container, they are not
the same things. The attributeSecurityGUID is used to tie schema objects to
property sets. Validated Rights and Extended Rights are hardcoded into the
OS. While you could add those types of objects, you wouldn't get anything
out of the OS with them, you would need to write your application(s) to use
them.

Now there are some things that are a bit confusing... The rightsGuid of
"Add/Remove self as member" is the same as the member attribute's
schemaIDGUID. This means that if you don't use the correct access mask the
permission will not be written properly and many programs and scripts
(including several of mine) actually display this incorrectly. If the mask
is a CA grant/deny (control access) then the permission is for "Add/Remove
self as member", if the mask is anything else, it is the member schema
attribute. It gets even worse with the rightsGUID of 
"Validated wite to DNS host name" is also the rightsGUID of the property set
"DNS Host Name Attributes" AND the schemaIDGUID of the attribute
dNSHostName.

I've actually been meaning to blog this for a while now as I keep fielding
questions in email and the newsgroups about it. Seems like a lot of people
are actually really looking at that stuff finally. I reported the DNS GUIDs
item to MSFT back after K3 came out as I didn't think it was right. I still
don't think it is the right way to handle it but too late to change now. It
just adds a bunch of confusion to something that doesn't need the confusion
because it is already too confusing.


As for the second part... I have been asked that and actually people have
insisted it is a bug in my code so much that I did blog it.

http://blog.joeware.net/2005/12/17/173/

 

   joe

 


[1]
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ad/ad/contr
ol_access_rights.asp


--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm 
 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matheesha
Weerasinghe
Sent: Monday, June 19, 2006 5:09 PM
To: ActiveDir@mail.activedir.org
Subject: [ActiveDir] Question on rightsguid

All

I've been doing a little digging into AD and was wondering why the
rightsguid for the validated-spn and the self-membership validated
rights doesn't have objects in the schema with matching
attributesecurityguid values. Is it correct to assume that there
should be objects in the schema with attributesecurityguid values to
match each rightsguid values of each controlaccess object? Or is
rightsguid only really important for propertysets?

Also I noticed when I used joe's adfind to list objects which had the
rightsguid value from validated-dns-host-name, the filter listed the
same rightsguid value in a different format. i.e

adfind -propsetmembers:72e39547-7b18-11d1-adef-00c04fd8d5cd
attributesecurityguid"  was expanded as Transformed Filter:
(&(objectcategory=attributeschema)(attributeSecurityGUID=G\9
5\E3r\18\7B\D1\11\AD\EF\00\C0O\D8\D5\CD))

I deduced G=47, r=72 etc..

Can anyone explain the above for me?

Cheers

M@
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