commands.py 文件源码

def __init__(self, api, router, nat_type, external_ip, logical_ip,
                 logical_port=None, external_mac=None, may_exist=False):
        if nat_type not in const.NAT_TYPES:
            raise TypeError("nat_type not in %s" % str(const.NAT_TYPES))
        external_ip = str(netaddr.IPAddress(external_ip))
        if nat_type == const.NAT_DNAT:
            logical_ip = str(netaddr.IPAddress(logical_ip))
        else:
            net = netaddr.IPNetwork(logical_ip)
            logical_ip = str(net.ip if net.prefixlen == 32 else net)
        if (logical_port is None) != (external_mac is None):
            msg = "logical_port and external_mac must be passed together"
            raise TypeError(msg)
        if logical_port and nat_type != const.NAT_BOTH:
            msg = "logical_port/external_mac only valid for %s" % (
                const.NAT_BOTH,)
            raise TypeError(msg)
        if external_mac:
            external_mac = str(
                netaddr.EUI(external_mac, dialect=netaddr.mac_unix_expanded))
        super(LrNatAddCommand, self).__init__(api)
        self.router = router
        self.nat_type = nat_type
        self.external_ip = external_ip
        self.logical_ip = logical_ip
        self.logical_port = logical_port or []
        self.external_mac = external_mac or []
        self.may_exist = may_exist