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# -*- coding: binary -*-
require 'packetfu/protos/eth/header'
require 'packetfu/protos/eth/mixin'
require 'packetfu/protos/lldp/header'
require 'packetfu/protos/lldp/mixin'
module PacketFu
class LLDPPacket < Packet
MAGIC = Regexp.new("^\x01\x80\xc2\x00\x00[\x0e\x03\x00]".force_encoding('ASCII-8BIT'), Regexp::NOENCODING)
include ::PacketFu::EthHeaderMixin
include ::PacketFu::LLDPHeaderMixin
attr_accessor :eth_header, :lldp_header
def self.can_parse?(str)
return false unless EthPacket.can_parse? str
return false unless str.size >= 6
return false unless str[12,2] == "\x88\xcc"
return false unless str =~ MAGIC
true
end
def initialize(args={})
@eth_header = EthHeader.new(args).read(args[:eth])
@lldp_header = LLDPHeader.new(args).read(args[:lldp])
@eth_header.eth_proto = "\x88\xCC"
@eth_header.body=@lldp_header
@headers = [@eth_header, @lldp_header]
super
end
# Generates summary data for LLDP packets.
def peek_format
peek_data = ["A "]
peek_data << "%-5d" % self.to_s.size
peek_data << lldp_saddr_mac
peek_data << "(#{lldp_saddr_mac})"
peek_data << "->"
peek_data << "01:80:c2:00:00:0e"
peek_data.join
end
# While there are lengths in LLDPPackets, there's not
# much to do with them.
def recalc(args={})
@headers[0].inspect
end
end
end
# vim: nowrap sw=2 sts=0 ts=2 ff=unix ft=ruby
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