ip.py 文件源码

def sniff_iface(f):
    """Ensure decorated function is called with a value for iface.

    If no iface provided, inject net iface inferred from unit private address.
    """
    def iface_sniffer(*args, **kwargs):
        if not kwargs.get('iface', None):
            kwargs['iface'] = get_iface_from_addr(unit_get('private-address'))

        return f(*args, **kwargs)

    return iface_sniffer