Helper to get the interfaces hardware address using the IP Address.

def _find_interfaces_mac(ip):  # pylint: disable=invalid-name
    '''
    Helper to get the interfaces hardware address using the IP Address.
    '''
    all_interfaces = _get_mine('net.interfaces')
    all_ipaddrs = _get_mine('net.ipaddrs')

    for device, device_ipaddrs in six.iteritems(all_ipaddrs):
        if not device_ipaddrs.get('result', False):
            continue
        for interface, interface_ipaddrs in six.iteritems(device_ipaddrs.get('out', {})):
            ip_addresses = interface_ipaddrs.get('ipv4', {}).keys()
            ip_addresses.extend(interface_ipaddrs.get('ipv6', {}).keys())
            for ipaddr in ip_addresses:
                if ip != ipaddr:
                    continue
                interface_mac = all_interfaces.get(device, {}).get('out', {}).get(interface, {}).get('mac_address', '')
                return device, interface, interface_mac

    return ('', '', '')