get_genm_itav
if ((itav = get_genm_itav(ctx, req, NID_id_it_caCerts, "caCerts")) == NULL)
itav = get_genm_itav(ctx, req, NID_id_it_rootCaKeyUpdate, "rootCaKeyUpdate");
if ((itav = get_genm_itav(ctx, req, NID_id_it_crls, "crl")) == NULL)
if ((itav = get_genm_itav(ctx, req, NID_id_it_certReqTemplate,