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