3.1.1.4.5.3 allowedChildClasses
Let TO be the object from which the allowedChildClasses attribute is being read.
The value of TO!allowedChildClasses is the set of lDAPDisplayName values read from each Object O where:
(O.distinguishedName is in the schema NC)
and (O!objectClass is classSchema)
and (not O!systemOnly)
and (not O!objectClassCategory is 2)
and (not O!objectClassCategory is 3)
and (there exists C in TO!objectClass such that C is in POSSSUPERIORS(O))