Contents

# This file is part of PacketGen
# See https://github.com/sdaubert/packetgen for more informations
# Copyright (C) 2016 Sylvain Daubert <[e-mail]>
# This program is published under MIT license.

# frozen_string_literal: true

module PacketGen
  module Header
    # Module to group all NetBIOS headers
    # @author Sylvain Daubert
    module NetBIOS
      # NetBIOS Session Service messages.
      # @author Sylvain Daubert
      class Session < Base
        # Port number for NetBIOS Session Service over TCP
        TCP_PORT = 139
        
        # Session packet types
        TYPES = {
          'message'           => 0,
          'request'           => 0x81,
          'positive_response' => 0x82,
          'negative_response' => 0x83,
          'retarget_response' => 0x84,
          'keep_alive'        => 0x85,
        }
        
        # @!attribute type
        #  8-bit session packet type
        #  @return [Integer]
        define_field :type, Types::Int8Enum, enum: TYPES
        # @!attribute length
        #  17-bit session packet length
        #  @return [Integer]
        define_field :length, Types::Int24
        # @!attribute body
        #  @return [String]
        define_field :body, Types::String
        
        # Compute and set {#length} field
        # @return [Integer] calculated length
        def calc_length
          Base.calculate_and_set_length(self, header_in_size: false)
        end
      end
    end
    self.add_class NetBIOS::Session
    TCP.bind_header NetBIOS::Session, sport: NetBIOS::Session::TCP_PORT, dport: NetBIOS::Session::TCP_PORT
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
packetgen-2.6.0	lib/packetgen/header/netbios.rb
packetgen-2.5.2	lib/packetgen/header/netbios.rb
packetgen-2.5.1	lib/packetgen/header/netbios.rb