strictly POSIX (was Re: Samba ACL's and FreeBSD (fwd))

[Chris Faulhaber]

In attempting to get samba 2.2 and its ACL support working with
the TrustedBSD ACL implementation, we find that samba uses
acl_get_perm() (checks if permission(s) are contained in a
permission set) as though it were a standard POSIX.1e function.

From my questions on samba-technical, Jeremy Allison implies that
this function was in previous draft revisions. If so (I don't have
anything earlier than Draft 17), why was it removed?  Do other ACL
implementation use a similiar function (other than Linux)?

Additionally, the Linux implementation assumes a bitmask-based
acl_perm_t.  From what I can see, the spec does not state this is
required.  Should the caller be allowed to compare multiple
permissions (e.g. ACL_READ|ACL_EXECUTE) in this case?

Either way it does seem to be useful could be easily implemented
in some fashion (albeit, marked as non-standard).

-- 
Chris D. Faulhaber - jedgar at fxp.org - jedgar at FreeBSD.org
--------------------------------------------------------
FreeBSD: The Power To Serve   -   http://www.FreeBSD.org
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