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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Auxiliary
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  include Msf::Exploit::Remote::Capture
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  def initialize
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    super(
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      'Name'        => 'Pcap Replay Utility',
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      'Description' => %q{
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        Replay a pcap capture file
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      },
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      'Author'      => 'amaloteaux',
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      'License'     => MSF_LICENSE
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    )
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    register_options([
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      OptPath.new('FILENAME', [true, "The local pcap file to process"]),
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      OptString.new('FILE_FILTER', [false, "The filter string to apply on the file"]),
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      OptInt.new('LOOP', [true, "The number of times to loop through the file",1]),
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      OptInt.new('DELAY', [true, "the delay in millisecond between each loop",0]),
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      OptInt.new('PKT_DELAY', [true, "the delay in millisecond between each packet",0]),
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    ])
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    deregister_options('SNAPLEN','FILTER','PCAPFILE','RHOST','TIMEOUT','SECRET','GATEWAY_PROBE_HOST','GATEWAY_PROBE_PORT')
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  end
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  def run
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    check_pcaprub_loaded # Check first
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    pkt_delay = datastore['PKT_DELAY']
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    delay = datastore['DELAY']
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    loop = datastore['LOOP']
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    infinity = true if loop <= 0
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    file_filter = datastore['FILE_FILTER']
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    filename = datastore['FILENAME']
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    verbose = datastore['VERBOSE']
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    count = 0
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    unless File.exist? filename and File.file? filename
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      print_error("Pcap File does not exist")
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      return
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    end
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    open_pcap
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    print_status("Sending file...") unless verbose
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    while (loop > 0 or infinity) do
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      vprint_status("Sending file (loop: #{count = count + 1})")
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      inject_pcap(filename, file_filter, pkt_delay )
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      loop -= 1 unless infinity
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      Kernel.select(nil, nil, nil, (delay * 1.0)/1000) if loop > 0 or infinity
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    end
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    close_pcap
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  end
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end
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