xcon.py 文件源码

def _configure_interface_address(self, interface, address, default_route=None):
        net = ipaddress.ip_interface(address)
        if default_route:
            try:
                next_hop = ipaddress.ip_address(default_route)
            except ValueError:
                self.logger.error("next-hop address {} could not be parsed".format(default_route))
                sys.exit(1)

        if default_route and next_hop not in net.network:
            self.logger.error("next-hop address {} not in network {}".format(next_hop, net))
            sys.exit(1)

        subprocess.check_call(["ip", "-{}".format(net.version), "address", "add", str(net.ip) + "/" + str(net.network.prefixlen), "dev", interface])
        if next_hop:
            try:
                subprocess.check_call(["ip", "-{}".format(net.version), "route", "del", "default"])
            except:
                pass
            subprocess.check_call(["ip", "-{}".format(net.version), "route", "add", "default", "dev", interface, "via", str(next_hop)])