Class: PacketGen::Header::SNAP

Inherits:

Base

• Object
• BinStruct::Struct
• Base
• PacketGen::Header::SNAP

Defined in:

lib/packetgen/header/llc.rb

Overview

Sub-Network Access Protocol

A SNAP header consists of:

• a #oui (BinStruct::OUI),

• a #proto_id (BinStruct::Int16),

• and a #body (a BinStruct::String or another PacketGen::Headerable class).

Author:

• Sylvain Daubert

Since:

• 1.4.0

Instance Attribute Summary

• #body ⇒ BinStruct::String, Headerable

  SNAP header.

• #oui ⇒ BinStruct::OUI

  If 00:00:00, #proto_id is an EtherType.

• #proto_id ⇒ Integer

  16-bit protocol id.

Method Summary

Methods inherited from Base

bind, calculate_and_set_length, #header_id, inherited, #initialize, #ip_header, #ll_header

Methods included from PacketGen::Headerable

#added_to_packet, included, #method_name, #packet, #packet=, #parse?, #protocol_name, #read, #to_s

Constructor Details

This class inherits a constructor from PacketGen::Header::Base

Instance Attribute Details

#body ⇒ BinStruct::String, Headerable

SNAP header

Returns:

• (BinStruct::String, Headerable)

# File 'lib/packetgen/header/llc.rb', line 62

define_attr :body, BinStruct::String

#oui ⇒ BinStruct::OUI

If 00:00:00, #proto_id is an EtherType. Else, #proto_id is specified by organization specified BY OUI.

Returns:

• (BinStruct::OUI)

# File 'lib/packetgen/header/llc.rb', line 54

define_attr :oui, BinStruct::OUI

#proto_id ⇒ Integer

16-bit protocol id

Returns:

• (Integer)

# File 'lib/packetgen/header/llc.rb', line 58

define_attr :proto_id, BinStruct::Int16