Contents

require 'pio/open_flow'
require 'pio/open_flow13/match'
require 'pio/parser'

module Pio
  module OpenFlow13
    # OpenFlow 1.3 PacketIn message parser and generator
    class PacketIn < OpenFlow::Message
      # Why is this packet being sent to the controller?
      # (enum ofp_packet_in_reason)
      class Reason < BinData::Primitive
        REASONS = { no_match: 0, action: 1, invalid_ttl: 2 }

        uint8 :reason

        def get
          REASONS.invert.fetch(reason)
        end

        def set(value)
          self.reason = REASONS.fetch(value)
        end
      end

      open_flow_header(version: 4,
                       message_type: 10,
                       message_length: lambda do
                         24 + match.length + padding.length + raw_data.length
                       end)
      uint32 :buffer_id
      uint16 :total_len, initial_value: -> { raw_data.length }
      reason :reason
      uint8 :table_id
      uint64 :cookie
      oxm :match
      string :padding, length: 2
      hide :padding
      string :raw_data, read_length: :total_len

      attr_accessor :datapath_id
      alias_method :dpid, :datapath_id
      alias_method :dpid=, :datapath_id=

      def data
        @data ||= Pio::Parser.read(raw_data)
      end

      def in_port
        match.in_port
      end

      def method_missing(method, *args)
        data.__send__(method, *args).snapshot
      end
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
pio-0.30.0	lib/pio/open_flow13/packet_in.rb
pio-0.29.0	lib/pio/open_flow13/packet_in.rb
pio-0.28.1	lib/pio/open_flow13/packet_in.rb
pio-0.28.0	lib/pio/open_flow13/packet_in.rb
pio-0.27.2	lib/pio/open_flow13/packet_in.rb