# $Id: loopback.py 38 2007-03-17 03:33:16Z dugsong $
# -*- coding: utf-8 -*-
"""Platform-dependent loopback header."""
from __future__ import absolute_import
from . import dpkt
from . import ethernet
from . import ip
from . import ip6
[docs]class Loopback(dpkt.Packet):
"""Platform-dependent loopback header.
TODO: Longer class information....
Attributes:
__hdr__: Header fields of Loopback.
TODO.
"""
__hdr__ = (('family', 'I', 0), )
__byte_order__ = '@'
[docs] def unpack(self, buf):
dpkt.Packet.unpack(self, buf)
if self.family == 2:
self.data = ip.IP(self.data)
elif self.family == 0x02000000:
self.family = 2
self.data = ip.IP(self.data)
elif self.family in (24, 28, 30):
self.data = ip6.IP6(self.data)
elif self.family > 1500:
self.data = ethernet.Ethernet(self.data)