[libvirt] Opening a read-only connection - with SASL auth.

Looking at the collectd virt plugin, it opens a read only connection with libvirt[1]. We'd like to use it with SASL auth. (which oVirt configures libvirt to use by default, with a simple username/password) - is that possible? TIA, Y. [1] https://github.com/collectd/collectd/blob/d782a871aca61ac966ee8d928930719bd0...