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Size: 1.41 KB
Versions: 15
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Stored size: 1.41 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
# IEEE 802.1Q VLAN tagging
#
# A VLAN tag consists of:
# * a {#tci Tag Control Information} ({Types::Int16}),
# * a {#ethertype} ({Types::Int16}),
# * and a body (a {Types::String} or another Header class).
#
# == Create a Dot1q header
# # Create a IP packet in VLAN #43
# pkt = PacketGen.gen('Eth').add('Dot1q', vid: 43).add('IP')
# @author Sylvain Daubert
# @since 1.4.0
class Dot1q < Base
# @!attribute tci
# @return [Integer] 16-bit Tag Control Information
define_field :tci, Types::Int16
# @!attribute ethertype
# @return [Integer] 16-bit EtherType
define_field :ethertype, Types::Int16
# @!attribute body
# @return [Types::String,Header::Base]
define_field :body, Types::String
# @!attribute pcp
# @return [Integer] 3-bit Priority Code Point from {#tci}
# @!attribute dei
# @return [Boolean] Drop Eligible Indicator from {#tci}
# @!attribute vid
# @return [Integer] 12-bit VLAN ID from {#tci}
define_bit_fields_on :tci, :pcp, 3, :dei, :vid, 12
end
Eth.bind Dot1q, ethertype: 0x8100
end
end
Version data entries
15 entries across 15 versions & 1 rubygems