File list of package libvirt-daemon-driver-nwfilter in sid of architecture armel
/usr/lib/arm-linux-gnueabi/libvirt/connection-driver/libvirt_driver_nwfilter.so /usr/share/doc/libvirt-daemon-driver-nwfilter
/usr/lib/arm-linux-gnueabi/libvirt/connection-driver/libvirt_driver_nwfilter.so /usr/share/doc/libvirt-daemon-driver-nwfilter