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local stdnse = require "stdnse"
local string = require "string"
local target = require "target"
description = [[
Inserts traceroute hops into the Nmap scanning queue. It only functions if Nmap's <code>--traceroute</code> option is used and the <code>newtargets</code> script argument is given.
]]
---
-- @args newtargets If specified, adds traceroute hops onto Nmap
-- scanning queue.
--
-- @usage
-- nmap --script targets-traceroute --script-args newtargets --traceroute target
--
-- @output
-- Host script results:
-- |_traceroute-scan-hops: successfully added 5 new targets.
-- 09/02/2010
author = "Henri Doreau"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"safe", "discovery"}
hostrule = function(host)
-- print debug messages because the script relies on
-- script arguments and traceroute results.
if not target.ALLOW_NEW_TARGETS then
stdnse.print_debug(3,
"Skipping %s script, 'newtargets' script argument is missing.",
SCRIPT_NAME)
return false
end
if not host.traceroute then
stdnse.print_debug(3,
"Skipping %s script because traceroute results are missing.",
SCRIPT_NAME)
return false
end
return true
end
action = function(host)
local ntargets = 0
for _, hop in ipairs(host.traceroute) do
-- avoid timedout hops, marked as empty entries
-- do not add the current scanned host.ip
if hop.ip and host.ip ~= hop.ip then
local status, ret = target.add(hop.ip)
if status then
ntargets = ntargets + ret
stdnse.print_debug(3,
"TRACEROUTE Scan Hops: Added new target "..host.ip.." from traceroute results")
else
stdnse.print_debug(3, "TRACEROUTE Scan Hops: " .. ret)
end
end
end
if ntargets > 0 then
return string.format("successfully added %d new targets.\n", ntargets)
end
end