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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::Auxiliary::Report
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  include Msf::Auxiliary::UDPScanner
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  include Msf::Auxiliary::MDNS
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'mDNS Query',
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        'Description' => %q{
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          This module sends mDNS queries, which are really just normal UDP DNS
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          queries done (usually) over multicast on a different port, 5353.
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        },
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        'Author' => [
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          'Jon Hart <jon_hart[at]rapid7.com>'
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        ],
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        'License' => MSF_LICENSE,
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        'Notes' => {
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          'Reliability' => UNKNOWN_RELIABILITY,
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          'Stability' => UNKNOWN_STABILITY,
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          'SideEffects' => UNKNOWN_SIDE_EFFECTS
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        }
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      )
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    )
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  end
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  def scanner_prescan(batch)
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    print_status("Sending mDNS #{query_type_name} #{query_class_name} queries for " \
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                 "#{query_name} to #{batch[0]}->#{batch[-1]} port #{rport} (#{batch.length} hosts)")
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    @results = {}
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  end
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  def scanner_postscan(_batch)
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    found = {}
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    @results.each_pair do |peer, resps|
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      resps.each do |resp|
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        found[peer] ||= {}
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        next if found[peer][resp]
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        response_info = describe_response(resp)
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        print_good("#{peer} responded with #{response_info}")
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        report_service(host: peer, port: rport, proto: "udp", name: "mdns", info: response_info)
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        found[peer][resp] = true
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      end
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    end
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  end
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end
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