Class: PacketGen::Plugin::IKE::CertReq

Inherits:
Cert
  • Object
show all
Defined in:
lib/packetgen/plugin/ike/certreq.rb

Overview

This class handles Certificate Request payloads.

A CertReq payload consists of the IKE generic payload Plugin (see Payload) and some specific fields:

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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Next Payload  |C|  RESERVED   |         Payload Length        |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Cert Encoding |                                               |
+-+-+-+-+-+-+-+-+                                               +
|                                                               |
~                      Certification Authority                  ~
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

These specific fields are:

Create a CertReq payload

# Create a IKE packet with a CertReq payload
pkt = PacketGen.gen('IP').add('UDP').add('IKE').add('IKE::CertReq', encoding: 'X509_CERT_SIG')
pkt.ike_certreq.content.read OpenSSL::Digest::SHA1.digest(ca_cert.to_der)
pkt.calc_length

Author:

  • Sylvain Daubert

Constant Summary collapse

PAYLOAD_TYPE =

Payload type number

38

Constants inherited from Cert

PacketGen::Plugin::IKE::Cert::ENCODINGS

Instance Attribute Summary

Attributes inherited from Cert

#encoding

Attributes inherited from Payload

#content, #critical, #flags, #hreserved, #length, #next

Instance Method Summary collapse

Methods inherited from Cert

#human_encoding, #initialize

Methods inherited from Payload

#calc_length, #initialize, protocol_name

Constructor Details

This class inherits a constructor from PacketGen::Plugin::IKE::Cert

Instance Method Details

#human_content ⇒ String

Get list of 20-byte string (SHA-1 hashes)

Returns:

  • (String) 


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# File 'lib/packetgen/plugin/ike/certreq.rb', line 43

def human_content
  strs = []
  idx = 0
  while idx < content.size
    strs << content[idx, 20]
    idx += 20
  end
  strs.map(&:inspect).join(',')
end

#inspect ⇒ String

Returns:

  • (String) 


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# File 'lib/packetgen/plugin/ike/certreq.rb', line 54

def inspect
  super do |attr|
    next unless attr == :content
    str = Inspect.shift_level
    str << Inspect::FMT_ATTR % ['hashes', :content, human_content]
  end
end