53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
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# This file is part of Scapy
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# See http://www.secdev.org/projects/scapy for more information
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# Copyright (C) Philippe Biondi <phil@secdev.org>
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# This program is published under a GPLv2 license
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"""
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Mobile IP.
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"""
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from scapy.fields import ByteEnumField, ByteField, IPField, LongField, \
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ShortField, XByteField
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from scapy.packet import Packet, bind_layers, bind_bottom_up
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from scapy.layers.inet import IP, UDP
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class MobileIP(Packet):
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name = "Mobile IP (RFC3344)"
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fields_desc = [ByteEnumField("type", 1, {1: "RRQ", 3: "RRP"})]
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class MobileIPRRQ(Packet):
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name = "Mobile IP Registration Request (RFC3344)"
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fields_desc = [XByteField("flags", 0),
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ShortField("lifetime", 180),
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IPField("homeaddr", "0.0.0.0"),
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IPField("haaddr", "0.0.0.0"),
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IPField("coaddr", "0.0.0.0"),
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LongField("id", 0), ]
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class MobileIPRRP(Packet):
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name = "Mobile IP Registration Reply (RFC3344)"
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fields_desc = [ByteField("code", 0),
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ShortField("lifetime", 180),
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IPField("homeaddr", "0.0.0.0"),
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IPField("haaddr", "0.0.0.0"),
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LongField("id", 0), ]
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class MobileIPTunnelData(Packet):
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name = "Mobile IP Tunnel Data Message (RFC3519)"
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fields_desc = [ByteField("nexthdr", 4),
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ShortField("res", 0)]
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bind_bottom_up(UDP, MobileIP, dport=434)
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bind_bottom_up(UDP, MobileIP, sport=434)
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bind_layers(UDP, MobileIP, sport=434, dport=434)
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bind_layers(MobileIP, MobileIPRRQ, type=1)
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bind_layers(MobileIP, MobileIPRRP, type=3)
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bind_layers(MobileIP, MobileIPTunnelData, type=4)
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bind_layers(MobileIPTunnelData, IP, nexthdr=4)
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