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# -*- coding: binary -*-
require 'packetfu/protos/eth/header'
require 'packetfu/protos/eth/mixin'
require 'packetfu/protos/ipv6/header'
require 'packetfu/protos/ipv6/mixin'
module PacketFu
# IPv6Packet is used to construct IPv6 Packets. They contain an EthHeader and an IPv6Header, and in
# the distant, unknowable future, will take interesting IPv6ish payloads.
#
# This mostly complete, but not very useful. It's intended primarily as an example protocol.
#
# == Parameters
#
# :eth
# A pre-generated EthHeader object.
# :ip
# A pre-generated IPHeader object.
# :flavor
# TODO: Sets the "flavor" of the IPv6 packet. No idea what this will look like, haven't done much IPv6 fingerprinting.
# :config
# A hash of return address details, often the output of Utils.whoami?
class IPv6Packet < Packet
include ::PacketFu::EthHeaderMixin
include ::PacketFu::IPv6HeaderMixin
attr_accessor :eth_header, :ipv6_header
def self.can_parse?(str)
return false unless EthPacket.can_parse? str
return false unless str.size >= 54
return false unless str[12,2] == "\x86\xdd"
true
end
def initialize(args={})
@eth_header = (args[:eth] || EthHeader.new)
@ipv6_header = (args[:ipv6] || IPv6Header.new)
@eth_header.eth_proto = 0x86dd
@eth_header.body=@ipv6_header
@headers = [@eth_header, @ipv6_header]
super
end
# Peek provides summary data on packet contents.
def peek(args={})
peek_data = ["6 "]
peek_data << "%-5d" % self.to_s.size
peek_data << "%-31s" % self.ipv6_saddr
peek_data << "-> "
peek_data << "%-31s" % self.ipv6_daddr
peek_data << " N:"
peek_data << self.ipv6_next.to_s(16)
peek_data.join
end
end
end
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