Re: overlay question

[Howard Chu <hyc@symas.com>]

Roland Hedberg wrote:

> Roland Hedberg wrote:
>
> > And the result is that spocp_cntrl_op() is called on unbind but not on 
> > bind or search (which is the ones I have checked) operations.
>
> Hmm, seems I have to be a bit more specific.
>
> Now, what I first tried was to just do:
>
> ldapsearch -x -b "" -s base "(objectclass=*)"
>
> According to the debug output this included a bind (implicit ?), a 
> search/read and a unbind.
>
> So no call for my overlay function was made for either the bind or the 
> search.
>
> If on the other hand I used a ldap client program (gq in this case) and 
> browses down the tree, I do see calls to my overlay for some searches 
> but not for others.
>
> The common denominator seems to be that search with baseobject "" is not 
> passed through the overlay, while when the baseobject is not "" the 
> overlays gets to handle the request.
>
> Again, why is that ?

Overlays are configured on specific backends. The overlay will only be 
invoked in the same circumstances that the backend itself would normally 
be invoked; i.e., the operation must reference an entry that is inside 
the backend's naming context. The base object "" does not reside in any 
backend.

You may be interested in the patch in ITS#3080 if you want your overlay 
to have global effect.
--
  -- Howard Chu
  Chief Architect, Symas Corp.       Director, Highland Sun
  http://www.symas.com               http://highlandsun.com/hyc
  Symas: Premier OpenSource Development and Support