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https://github.com/nmap/nmap.git
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fdb0f775e2
Many scripts were documented as using timespecs (10s, 5000ms, etc) for timeout script-args, but one 1 or 2 actually did. Now all timeout script-args will accept timespecs, except those which took a number of milliseconds, which remain unchanged. Also fixed some documentation issues (missing script name in arg description, missing nsedoc for args, etc)
104 lines
2.4 KiB
Lua
104 lines
2.4 KiB
Lua
local gps = require "gps"
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local nmap = require "nmap"
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local os = require "os"
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local shortport = require "shortport"
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local stdnse = require "stdnse"
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description = [[
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Retrieves GPS time, coordinates and speed from the GPSD network daemon.
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]]
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---
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-- @usage
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-- nmap -p 2947 <ip> --script gpsd-info
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--
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-- @output
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-- PORT STATE SERVICE REASON
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-- 2947/tcp open gpsd-ng syn-ack
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-- | gpsd-info:
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-- | Time of fix: Sat Apr 14 15:54:23 2012
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-- | Coordinates: 59.321685,17.886493
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-- |_ Speed: - knots
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--
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-- @args gpsd-info.timeout timespec defining how long to wait for data (default 10s)
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author = "Patrik Karlsson"
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license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
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categories = {"discovery", "safe"}
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portrule = shortport.port_or_service(2947, "gpsd-ng", "tcp")
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local arg_timeout = stdnse.parse_timespec(stdnse.get_script_args(SCRIPT_NAME .. ".timeout"))
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arg_timeout = arg_timeout or 10
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local function updateData(gpsinfo, entry)
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for k, v in pairs(gpsinfo) do
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if ( entry[k] and 0 < #tostring(entry[k]) ) then
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gpsinfo[k] = entry[k]
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end
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end
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end
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local function hasAllData(gpsinfo)
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for k, v in pairs(gpsinfo) do
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if ( k ~= "speed" and v == '-' ) then
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return false
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end
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end
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return true
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end
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local function fail(err) return ("\n ERROR: %s"):format(err or "") end
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action = function(host, port)
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local gpsinfo = {
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longitude = "-",
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latitude = "-",
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speed = "-",
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time = "-",
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date = "-",
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}
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local socket = nmap.new_socket()
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socket:set_timeout(1000)
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local status = socket:connect(host, port)
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if ( not(status) ) then
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return fail("Failed to connect to server")
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end
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-- get the banner
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local status, line = socket:receive_lines(1)
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socket:send('?WATCH={"enable":true,"nmea":true}\r\n')
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local start_time = os.time()
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repeat
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local entry
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status, line = socket:receive_buf("\r\n", false)
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if ( status ) then
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status, entry = gps.NMEA.parse(line)
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if ( status ) then
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updateData(gpsinfo, entry)
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end
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end
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until( os.time() - start_time > arg_timeout or hasAllData(gpsinfo) )
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socket:send('?WATCH={"enable":false}\r\n')
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if ( not(hasAllData(gpsinfo)) ) then
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return
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end
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local output = {
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("Time of fix: %s UTC"):format(os.date("%c", gps.Util.convertTime(gpsinfo.date, gpsinfo.time))),
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("Coordinates: %.4f,%.4f"):format(tonumber(gpsinfo.latitude), tonumber(gpsinfo.longitude)),
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("Speed: %s knots"):format(gpsinfo.speed)
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}
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return stdnse.format_output(true, output)
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end
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