#!/usr/bin/env python
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# This file is part of Scapy
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# Scapy is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# any later version.
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#
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# Scapy is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Scapy. If not, see <http://www.gnu.org/licenses/>.
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# scapy.contrib.description = RIPng
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# scapy.contrib.status = loads
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from scapy.packet import *
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from scapy.fields import *
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from scapy.layers.inet import UDP
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from scapy.layers.inet6 import *
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class RIPng(Packet):
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name = "RIPng header"
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fields_desc = [
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ByteEnumField("cmd", 1, {1 : "req", 2 : "resp"}),
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ByteField("ver", 1),
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ShortField("null", 0),
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]
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class RIPngEntry(Packet):
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name = "RIPng entry"
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fields_desc = [
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ConditionalField(IP6Field("prefix", "::"),
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lambda pkt: pkt.metric != 255),
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ConditionalField(IP6Field("nexthop", "::"),
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lambda pkt: pkt.metric == 255),
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ShortField("routetag", 0),
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ByteField("prefixlen", 0),
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ByteEnumField("metric", 1, {16 : "Unreach",
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255 : "next-hop entry"})
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]
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bind_layers(UDP, RIPng, sport=521, dport=521)
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bind_layers(RIPng, RIPngEntry)
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bind_layers(RIPngEntry, RIPngEntry)
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if __name__ == "__main__":
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from scapy.main import interact
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interact(mydict=globals(), mybanner="RIPng")
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