Class: Rex::Post::Meterpreter::Datagram

Inherits:
Channel
  • Object
show all
Includes:
IO::DatagramAbstraction, SocketAbstraction
Defined in:
lib/rex/post/meterpreter/channels/datagram.rb

Overview

Stream


This class represents a channel that is streaming. This means that sequential data is flowing in either one or both directions.

Defined Under Namespace

Modules: SocketInterface

Instance Attribute Summary

Attributes inherited from Channel

#cid, #client, #cls, #flags, #params, #type

Class Method Summary collapse

Instance Method Summary collapse

Methods included from SocketAbstraction

#_write, #cleanup, #dio_close_handler, #initialize

Methods inherited from Channel

_close, #_close, #_read, #_write, #cleanup, #close, #close_read, #close_write, #closed?, create, #dio_close_handler, #dio_handler, #dio_map, #dio_read_handler, finalize, #flag?, #initialize, #interactive, #read, request_handler, #synchronous?, #write

Methods included from InboundPacketHandler

#request_handler, #response_handler

Class Method Details

.clsObject


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# File 'lib/rex/post/meterpreter/channels/datagram.rb', line 25

def cls
  return CHANNEL_CLASS_DATAGRAM
end

Instance Method Details

#dio_write_handler(packet, data) ⇒ Object


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# File 'lib/rex/post/meterpreter/channels/datagram.rb', line 54

def dio_write_handler(packet, data)
  @recvd ||= []
  @recvd << [packet, data]
  peerhost = packet.get_tlv_value(
    Rex::Post::Meterpreter::Extensions::Stdapi::TLV_TYPE_PEER_HOST
  )
  peerport = packet.get_tlv_value(
    Rex::Post::Meterpreter::Extensions::Stdapi::TLV_TYPE_PEER_PORT
  )

  if peerhost && peerport
    # A datagram can be maximum 65507 bytes, truncate longer messages
    rsock.syswrite(data[0..65506])

    # We write the data and sockaddr data to the local socket, the pop it
    # back in recvfrom_nonblock.
    rsock.syswrite(Rex::Socket.to_sockaddr(peerhost, peerport))
    return true
  else
    return false
  end
end