Class: PacketGen::Header::NonESPMarker

Inherits:
Base show all
Defined in:
lib/packetgen/header/ike.rb

Overview

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

Author:

  • Sylvain Daubert

Since:

  • 2.0.0

Instance Attribute Summary collapse

Attributes inherited from Base

#packet

Instance Method Summary collapse

Methods inherited from Base

bind_header, #header_id, inherited, #ip_header, known_headers, #method_name, protocol_name, #protocol_name

Methods inherited from Types::Fields

#[], #[]=, define_bit_fields_on, define_field, define_field_after, define_field_before, delete_field, #fields, #force_binary, inherited, #initialize, #inspect, #is_optional?, #is_present?, #optional_fields, #read, #sz, #to_h, #to_s

Constructor Details

This class inherits a constructor from PacketGen::Types::Fields

Instance Attribute Details

#body ⇒ Types::String, Header::Base

Returns:



15
 
# File 'lib/packetgen/header/ike.rb', line 15

define_field :body, Types::String

#non_esp_marker ⇒ Integer

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

Returns:

  • (Integer) 


12
 
# File 'lib/packetgen/header/ike.rb', line 12

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

Instance Method Details

#parse? ⇒ Boolean

Check non_esp_marker field

Returns:

  • (Boolean)

See Also:

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

Since:

  • 2.0.0



19
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21
 
# File 'lib/packetgen/header/ike.rb', line 19

def parse?
  non_esp_marker == 0
end