kvm.py 文件源码

def get_ipv4_network(self):
        xml = self._XMLDesc(0)
        if util.get_xml_path(xml, "/network/ip") is None:
            return None
        addrStr = util.get_xml_path(xml, "/network/ip/@address")
        netmaskStr = util.get_xml_path(xml, "/network/ip/@netmask")
        prefix = util.get_xml_path(xml, "/network/ip/@prefix")

        if prefix:
            prefix = int(prefix)
            binstr = ((prefix * "1") + ((32 - prefix) * "0"))
            netmaskStr = str(IP(int(binstr, base=2)))

        if netmaskStr:
            netmask = IP(netmaskStr)
            gateway = IP(addrStr)
            network = IP(gateway.int() & netmask.int())
            ret = IP(str(network) + "/" + netmaskStr)
        else:
            ret = IP(str(addrStr))

        return ret