108 lines
3.7 KiB
Lua
108 lines
3.7 KiB
Lua
local comm = require "comm"
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local nmap = require "nmap"
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local shortport = require "shortport"
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local string = require "string"
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local stdnse = require "stdnse"
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description = [[
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Detects the Freelancer game server (FLServer.exe) service by sending a
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status query UDP probe.
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When run as a version detection script (<code>-sV</code>), the script
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will report on the server name, current number of players, maximum
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number of players, and whether it has a password set. When run
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explicitly (<code>--script freelancer-info</code>), the script will
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additionally report on the server description, whether players can harm
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other players, and whether new players are allowed.
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See http://sourceforge.net/projects/gameq/
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(relevant files: games.ini, packets.ini, freelancer.php)
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]]
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---
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-- @usage
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-- nmap -sU -sV -p 2302 <target>
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-- nmap -sU -p 2302 --script=freelancer-info <target>
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-- @output
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-- PORT STATE SERVICE REASON VERSION
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-- 2302/udp open freelancer udp-response Freelancer (name: Discovery Freelancer RP 24/7; players: 152/225; password: no)
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-- | freelancer-info:
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-- | server name: Discovery Freelancer RP 24/7
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-- | server description: This is the official discovery freelancer RP server. To know more about the server, please visit www.discoverygc.com
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-- | players: 152
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-- | max. players: 225
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-- | password: no
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-- | allow players to harm other players: yes
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-- |_ allow new players: yes
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--
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-- @xmloutput
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-- <elem key="server name">Discovery Freelancer RP 24/7</elem>
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-- <elem key="server description">This is the official discovery freelancer RP server. To know more about the server, please visit www.discoverygc.com</elem>
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-- <elem key="players">152</elem>
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-- <elem key="max. players">225</elem>
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-- <elem key="password">no</elem>
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-- <elem key="allow players to harm other players">yes</elem>
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-- <elem key="allow new players">yes</elem>
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author = "Marin Maržić"
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license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
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categories = { "default", "discovery", "safe", "version" }
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portrule = shortport.version_port_or_service({2302}, "freelancer", "udp")
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action = function(host, port)
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local status, data = comm.exchange(host, port,
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"\x00\x02\xf1\x26\x01\x26\xf0\x90\xa6\xf0\x26\x57\x4e\xac\xa0\xec\xf8\x68\xe4\x8d\x21",
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{ timeout = 3000 })
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if not status then
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return
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end
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-- port is open
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nmap.set_port_state(host, port, "open")
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local passwordbyte, maxplayers, numplayers, name, pvpallow, newplayersallow, description =
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string.match(data, "^\x00\x03\xf1\x26............(.)...(.)...(.)...................................................................(.*)\0\0(.):(.):.*:.*:.*:(.*)\0\0$")
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if not passwordbyte then
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return
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end
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local o = stdnse.output_table()
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o["server name"] = string.gsub(name, "[^%g%s]", "")
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o["server description"] = string.gsub(description, "[^%g%s]", "")
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o["players"] = numplayers:byte(1) - 1
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o["max. players"] = maxplayers:byte(1) - 1
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passwordbyte = passwordbyte:byte(1)
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if passwordbyte & 128 ~= 0 then
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o["password"] = "yes"
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else
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o["password"] = "no"
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end
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o["allow players to harm other players"] = "n/a"
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if pvpallow == "1" then
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o["allow players to harm other players"] = "yes"
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elseif pvpallow == "0" then
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o["allow players to harm other players"] = "no"
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end
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o["allow new players"] = "n/a"
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if newplayersallow == "1" then
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o["allow new players"] = "yes"
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elseif newplayersallow == "0" then
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o["allow new players"] = "no"
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end
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port.version.name = "freelancer"
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port.version.name_confidence = 10
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port.version.product = "Freelancer"
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port.version.extrainfo = "name: " .. o["server name"] .. "; players: " ..
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o["players"] .. "/" .. o["max. players"] .. "; password: " .. o["password"]
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nmap.set_port_version(host, port, "hardmatched")
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return o
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end
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