Class: PacketGen::Plugin::NonESPMarker

Inherits:

Header::Base

• Object
• Header::Base
• PacketGen::Plugin::NonESPMarker

Defined in:

lib/packetgen/plugin/ike.rb

Overview

This class handles a pseudo-Plugin used to differentiate ESP from IKE Plugins in a UDP datagram with port 4500.

Author:

• Sylvain Daubert

Instance Attribute Summary

• #body ⇒ PacketGen::Types::String, PacketGen::Header::Base
• #non_esp_marker ⇒ Integer

  32-bit zero marker to differentiate IKE packet over UDP port 4500 from ESP ones.

Instance Method Summary

• #parse? ⇒ Boolean

  Check non_esp_marker field.

Instance Attribute Details

#body ⇒ PacketGen::Types::String, PacketGen::Header::Base

Returns:

• (PacketGen::Types::String, PacketGen::Header::Base)

# File 'lib/packetgen/plugin/ike.rb', line 19

define_field :body, PacketGen::Types::String

#non_esp_marker ⇒ Integer

32-bit zero marker to differentiate IKE packet over UDP port 4500 from ESP ones

Returns:

• (Integer)

# File 'lib/packetgen/plugin/ike.rb', line 16

define_field :non_esp_marker, PacketGen::Types::Int32, default: 0

Instance Method Details

#parse? ⇒ Boolean

Check non_esp_marker field

Returns:

• (Boolean)

See Also:

• PacketGen::Plugin::NonESPMarker.[PacketGen[PacketGen::Header[PacketGen::Header::Base[PacketGen::Header::Base#parse?]

# File 'lib/packetgen/plugin/ike.rb', line 23

def parse?
  non_esp_marker.zero?
end