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Re: Considering Attribute Subtypes during ACL evaluation



I agree for the exact same reason optional support of attr subtyping). It would also be interesting to hear from the X.500 community on how this is handled by different vendors. I found the whole thing unspecified.
 
Jim


>>> "Kurt D. Zeilenga" <Kurt@OpenLDAP.org> 9/30/00 12:59:03 PM >>>
At 07:39 AM 9/30/00 -0700, Prasanta Behera wrote:
>Currently  the netscape/iPlanet DS ACL supports a attribute inheritance of subtypes e.g. if you allow access to
>"cn", it automatically means { cn, cn;* }
>
>However, it is much harder to map "name" to "cn, sn".

Depends upon your server implementation...  I argue that
mapping "name" to "cn" is no harder than mapping "2.5.4.3"
to "cn".  Both require schema aware ACL evaluation and
once you have that, supporting subtyping is likely no big
deal. Implementing schema aware ACL evaluation may be hard,
but it's already required to handle alternative naming
of attribute types.

However, given that subtyping is optional in LDAPv3, one
could argue it's best to leave subtyping within ACLs as
being optional.

Kurt