[libvirt] invoking interface.script - missing interface name of domain

Hi, i would like to write a small script - bringing up my qemu-kvm interface and - connecting it to a bridge using the following XML domain-syntax : .... <interface type='ethernet'> <script path='/etc/kvm/qemu-ifup'/> </interface> .... The script will invoked (from qemu-kvm I thinkg) but I can't find any arguments like "interface name" - so my script cannot setup the bridge correctly because of missing information about the interface name. At the moment, I look to the PPID (parent pid of the script) and parse the qemu commandline (ps ef) to find out the interfacename - but it's only a workaround. Q: Is there a way to get informed about the interface libvirt/quemu used for the new domain ? regards Danny