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In snmp-interfaces.nse, move the check for the required script argument

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snmp-interfaces.host into the prerule and out of the action. Otherwise,
being default, this is the only script that runs during the prescan by
default.
This commit is contained in:
david
2011-02-01 18:16:28 +00:00
parent b1e3114eca
commit 84c4899414
1 changed files with 18 additions and 17 deletions
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35
scripts/snmp-interfaces.nse
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@@ -36,12 +36,23 @@ dependencies = {"snmp-brute"}
-- Revised 04/11/2010 - v0.2 - moved snmp_walk to snmp library <patrik@cqure.net>
-- Revised 08/10/2010 - v0.3 - prerule; add interface addresses to Nmap's target list (Kris Katterjohn)
require "stdnse"
require "shortport"
require "snmp"
require "datafiles"
require "target"
prerule = function() return true end
prerule = function()
if not stdnse.get_script_args({"snmp-interfaces.host", "host"}) then
stdnse.print_debug(3,
"Skipping '%s' %s, 'snmp-interfaces.host' argument is missing.",
SCRIPT_NAME, SCRIPT_TYPE)
return false
end
return true
end
portrule = shortport.portnumber(161, "udp", {"open", "open|filtered"})
-- List of IANA-assigned network interface types
@@ -389,26 +400,16 @@ action = function(host, port)
local srvhost, srvport
if SCRIPT_TYPE == "prerule" then
for _, k in ipairs({"snmp-interfaces.host", "host"}) do
if nmap.registry.args[k] then
srvhost = nmap.registry.args[k]
end
end
srvhost = stdnse.get_script_args({"snmp-interfaces.host", "host"})
if not srvhost then
stdnse.print_debug(3,
"Skipping '%s' %s, 'snmp-interfaces.host' argument is missing.",
SCRIPT_NAME, SCRIPT_TYPE)
-- Shouldn't happen; checked in prerule.
return
end
for _, k in ipairs({"snmp-interfaces.port", "port"}) do
if nmap.registry.args[k] then
srvport = tonumber(nmap.registry.args[k])
end
end
if not srvport then
srvport = stdnse.get_script_args({"snmp-interfaces.port", "port"})
if srvport then
srvport = tonumber(srvport)
else
srvport = 161
end
else