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Size: 1.56 KB
Versions: 9
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Stored size: 1.56 KB
Contents
# coding: utf-8
# 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.
module PacketGen
module Header
class Dot11
# IEEE 802.11 control frame header
# @author Sylvain Daubert
class Control < Dot11
# Control subtypes
SUBTYPES = {
7 => 'Wrapper',
8 => 'Block Ack Request',
9 => 'Block Ack',
10 => 'PS-Poll',
11 => 'RTS',
12 => 'CTS',
13 => 'Ack',
14 => 'CF-End',
15 => 'CF-End+CF-Ack'
}.freeze
# Control subtypes with mac2 field
SUBTYPES_WITH_MAC2 = [9, 10, 11, 14, 15].freeze
# @param [Hash] options
# @see Base#initialize
def initialize(options={})
super({type: 1}.merge!(options))
@applicable_fields -= %i(mac3 sequence_ctrl mac4 qos_ctrl ht_ctrl)
define_applicable_fields
end
# Get human readable subtype
# @return [String]
def human_subtype
SUBTYPES[subtype] || subtype.to_s
end
private
def define_applicable_fields
super
if @applicable_fields.include? :mac2
@applicable_fields -= %i(mac2) unless SUBTYPES_WITH_MAC2.include? self.subtype
elsif SUBTYPES_WITH_MAC2.include? self.subtype
sz = self.sz
@applicable_fields[3, 0] = :mac2
end
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems