Class: Msf::OptAddressRoutable

Inherits:
OptAddress show all
Defined in:
lib/msf/core/opt_address_routable.rb

Overview

Routable network address option.

Direct Known Subclasses

OptAddressLocal

Instance Attribute Summary

Attributes inherited from OptBase

#advanced, #aliases, #conditions, #default, #desc, #enums, #evasion, #fallbacks, #max_length, #name, #owner, #regex, #required

Instance Method Summary collapse

Methods inherited from OptAddress

#type

Methods inherited from OptBase

#advanced?, #display_value, #empty_required_value?, #evasion?, #initialize, #invalid_value_length?, #required?, #type?, #validate_on_assignment?

Constructor Details

This class inherits a constructor from Msf::OptBase

Instance Method Details

#interfaces ⇒ Object 



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# File 'lib/msf/core/opt_address_routable.rb', line 11

def interfaces
  begin
    NetworkInterface.interfaces || []
  rescue NetworkInterface::Error => e
    elog(e)
    []
  end
end

#normalize(value) ⇒ Object 



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# File 'lib/msf/core/opt_address_routable.rb', line 20

def normalize(value)
  return unless value.kind_of?(String)
  return normalize_interface(value) if interfaces.include?(value)
  return normalize_ip_address(value) if Rex::Socket.is_ip_addr?(value)
end

#valid?(value, check_empty: true, datastore: nil) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/msf/core/opt_address_routable.rb', line 26

def valid?(value, check_empty: true, datastore: nil)
  return false if check_empty && empty_required_value?(value)
  return false unless value.kind_of?(String) || value.kind_of?(NilClass)

  return true if interfaces.include?(value)

  return false if Rex::Socket.is_ip_addr?(value) && Rex::Socket.addr_atoi(value) == 0

  if Rex::Socket.is_ipv4?(value)
    ip_addr = IPAddr.new(value)
    return false if IPAddr.new('0.0.0.0/8').include? ip_addr   # this network
    return false if IPAddr.new('224.0.0.0/4').include? ip_addr # multicast
    return false if IPAddr.new('240.0.0.0/4').include? ip_addr # reserved
    return false if IPAddr.new('255.255.255.255') == ip_addr   # broadcast
  end

  super
end