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# $Id: loopback.py 38 2007-03-17 03:33:16Z dugsong $
"""Platform-dependent loopback header."""
import dpkt, ethernet, ip, ip6
class Loopback(dpkt.Packet):
__hdr__ = (('family', 'I', 0), )
__byte_order__ = '@'
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)
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