Sha256: b05ae27ea9f6b1fe7fa283410ad8869384228933b0716584732b6d20c5bdfe94
Contents?: true
Size: 1.98 KB
Versions: 7
Compression:
Stored size: 1.98 KB
Contents
# This file is part of PacketGen
# See https://github.com/sdaubert/packetgen for more informations
# Copyright (C) 2016 Sylvain Daubert <sylvain.daubert@laposte.net>
# This program is published under MIT license.
# frozen_string_literal: true
module PacketGen
module Header
# Module to group all NetBIOS headers
# @author Sylvain Daubert
# @since 2.5.1
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,
}.freeze
# @!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
# @api private
# @note This method is used internally by PacketGen and should not be
# directly called
# @since 2.7.0 Set TCP sport according to bindings, only if sport is 0.
# Needed by new bind API.
def added_to_packet(packet)
return unless packet.is? 'TCP'
return unless packet.tcp.sport.zero?
packet.tcp.sport = TCP_PORT
end
end
Header.add_class Session
TCP.bind Session, dport: Session::TCP_PORT
TCP.bind Session, sport: Session::TCP_PORT
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems