hyc@symas.com wrote:

Seems that we should add a backend_attribute handler to the translucent overlay.

That's not going to work anyway, since the overlay's bi_acl_attribute method is not going to be called anyway. In fact, any call to backend_attribute will be cast into a call to bi_entry_get_rw, so only by implementing translucent_entry_get_rw we could have a chance to look the remote entry up. But then we'd probably have issues in the subsequent call to translucent_entry_release, to distinguish whether the looked-up entry was from the local or the remote database... And see ITS#5650: right now, even if the attribute is not local, the local entry will always be returned.

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I've also tried to hack the translucent overlay so that it would support the bi_entry_get_rw callback but I haven't been able to provide something that would even satisfy me. I suppose I would have to use some sort of callback mechanism like translucent_search_cb but I haven't figured it out yet.

That's another problem I ran through when trying to add rewrite capabilities to the slapo-rwm(5) overlay, so that authorization could be rewrapped when performed through virtual data views. However, I believe the API of bi_entry_get_rw be modified for overlays, since the current API does not allow calls to modify their arguments. I'd leave that alone by now.

Haven't looked closely at this yet...

p.

Ing. Pierangelo Masarati OpenLDAP Core Team

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