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.
: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?
# File lib/packetfu/protos/ipv6.rb, line 29 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
# File lib/packetfu/protos/ipv6.rb, line 43 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.
# File lib/packetfu/protos/ipv6.rb, line 53 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
# File lib/packetfu/protos/ipv6.rb, line 36 def read(str=nil,args={}) raise "Cannot parse `#{str}'" unless self.class.can_parse?(str) @eth_header.read(str) super(args) self end