luca regini wrote: Yes: inspect ((slap_overinst*)op->o_bd->bd_info)->on_info->oi_orig->bi_type it's a string containing the name of the original backend type. Yes: cook an Operation structure with data appropriate for a LDAP_REQ_ADD, set BackendDB db = *op->o_bd; Operation op2 = *op; SlapReply rs2; op2.o_bd = &db; db.bd_info = ((slap_overinst*)op->o_bd->bd_info)->on_info->oi_orig and call op2.o_bd->be_add( &op2, &rs2 ); There's plenty of examples in overlays released with OpenLDAP software. p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati(a)sys-net.it ---------------------------------------