Class: Rex::Post::Meterpreter::Packet

Inherits:
GroupTlv show all
Defined in:
lib/rex/post/meterpreter/packet.rb

Overview

The logical meterpreter packet class

Instance Attribute Summary collapse

Attributes inherited from GroupTlv

#tlvs

Attributes inherited from Tlv

#compress, #type, #value

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from GroupTlv

#add_tlv, #add_tlvs, #each, #each_tlv, #each_tlv_with_index, #each_with_index, #from_r, #get_tlv, #get_tlv_value, #get_tlv_values, #get_tlvs, #has_tlv?, #reset, #to_r

Methods inherited from Tlv

#from_r, #inspect, #meta_type?, #to_r, #type?, #value?

Constructor Details

#initialize(type = nil, method = nil) ⇒ Packet

Initializes the packet to the supplied packet type and method, if any. If the packet is a request, a request identifier is created.


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# File 'lib/rex/post/meterpreter/packet.rb', line 616

def initialize(type = nil, method = nil)
  super(type)

  if (method)
    self.method = method
  end

  self.created_at = ::Time.now

  # If it's a request, generate a random request identifier
  if ((type == PACKET_TYPE_REQUEST) ||
      (type == PACKET_TYPE_PLAIN_REQUEST))
    rid = ''

    32.times { |val| rid << rand(10).to_s }

    add_tlv(TLV_TYPE_REQUEST_ID, rid)
  end
end

Instance Attribute Details

#created_at ⇒ Object

Returns the value of attribute created_at


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# File 'lib/rex/post/meterpreter/packet.rb', line 572

def created_at
  @created_at
end

Class Method Details

.create_request(method = nil) ⇒ Object

Creates a request with the supplied method.


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# File 'lib/rex/post/meterpreter/packet.rb', line 583

def Packet.create_request(method = nil)
  return Packet.new(PACKET_TYPE_REQUEST, method)
end

.create_response(request = nil) ⇒ Object

Creates a response to a request if one is provided.


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# File 'lib/rex/post/meterpreter/packet.rb', line 590

def Packet.create_response(request = nil)
  response_type = PACKET_TYPE_RESPONSE
  method = nil

  if (request)
    if (request.type?(PACKET_TYPE_PLAIN_REQUEST))
      response_type = PACKET_TYPE_PLAIN_RESPONSE
    end

    method = request.method
  end

  return Packet.new(response_type, method)
end

Instance Method Details

#method ⇒ Object

Returns the value of the packet's method TLV.


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# File 'lib/rex/post/meterpreter/packet.rb', line 673

def method
  return get_tlv_value(TLV_TYPE_METHOD)
end

#method=(method) ⇒ Object

Sets the packet's method TLV to the method supplied.


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# File 'lib/rex/post/meterpreter/packet.rb', line 666

def method=(method)
  add_tlv(TLV_TYPE_METHOD, method, true)
end

#method?(method) ⇒ Boolean

Checks to see if the packet's method is equal to the supplied method.


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# File 'lib/rex/post/meterpreter/packet.rb', line 659

def method?(method)
  return (get_tlv_value(TLV_TYPE_METHOD) == method)
end

#response? ⇒ Boolean

Checks to see if the packet is a response.


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# File 'lib/rex/post/meterpreter/packet.rb', line 645

def response?
  return ((self.type == PACKET_TYPE_RESPONSE) ||
          (self.type == PACKET_TYPE_PLAIN_RESPONSE))
end

#result ⇒ Object

Gets the value of the packet's result TLV.


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# File 'lib/rex/post/meterpreter/packet.rb', line 695

def result
  return get_tlv_value(TLV_TYPE_RESULT)
end

#result=(result) ⇒ Object

Sets the packet's result TLV.


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# File 'lib/rex/post/meterpreter/packet.rb', line 688

def result=(result)
  add_tlv(TLV_TYPE_RESULT, result, true)
end

#result?(result) ⇒ Boolean

Checks to see if the packet's result value is equal to the supplied result.


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# File 'lib/rex/post/meterpreter/packet.rb', line 681

def result?(result)
  return (get_tlv_value(TLV_TYPE_RESULT) == result)
end

#rid ⇒ Object

Gets the value of the packet's request identifier TLV.


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# File 'lib/rex/post/meterpreter/packet.rb', line 702

def rid
  return get_tlv_value(TLV_TYPE_REQUEST_ID)
end