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Diffstat (limited to 'scripts/tn3270-screen.nse')
| -rw-r--r-- | scripts/tn3270-screen.nse | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/scripts/tn3270-screen.nse b/scripts/tn3270-screen.nse new file mode 100644 index 0000000..59d8319 --- /dev/null +++ b/scripts/tn3270-screen.nse @@ -0,0 +1,122 @@ +local stdnse = require "stdnse" +local shortport = require "shortport" +local tn3270 = require "tn3270" + +description = [[ +Connects to a tn3270 'server' and returns the screen. + +Hidden fields will be listed below the screen with (row, col) coordinates. +]] + +--- +-- @usage +-- nmap --script tn3270-info,tn3270_screen <host> +-- +-- @output +-- PORT STATE SERVICE VERSION +-- 23/tcp open tn3270 Telnet TN3270 +-- | tn3270-screen: +-- | screen: +-- | Mainframe Operating System z/OS V1.6 +-- | FFFFF AAA N N DDDD EEEEE ZZZZZ H H III +-- | F A A NN N D D E Z H H I +-- | FFFF AAAAA N N N D D EEEE Z HHHHH I +-- | F A A N NN D D E Z H H I +-- | F A A N N DDDD EEEEE ZZZZZ H H III +-- | +-- | ZZZZZ / OOOOO SSSS +-- | Z / O O S +-- | Z / O O SSS +-- | Z / O O S +-- | ZZZZZ / OOOOO SSSS +-- | +-- | Welcome to Fan DeZhi Mainframe System! +-- | +-- | Support: http://zos.efglobe.com +-- | TSO - Logon to TSO/ISPF NETVIEW - Netview System +-- | CICS - CICS System NVAS - Netview Access +-- | IMS - IMS System AOF - Netview Automation +-- | +-- | Enter your choice==> +-- | Hi! Enter one of above commands in red. +-- | +-- |_Your IP(10.10.10.375 :64199), SNA LU( ) 05/30/15 13:33:37 +-- +-- @args tn3270-screen.commands a semi-colon separated list of commands you want to +-- issue before printing the screen +-- tn3270-screen.lu specify a logical unit you with to use, fails if can't connect +-- tn3270-screen.disable_tn3270e disables TN3270 Enhanced mode +-- +-- +-- @changelog +-- 2015-05-30 - v0.1 - created by Soldier of Fortran +-- 2015-11-14 - v0.2 - added commands argument +-- 2018-09-07 - v0.3 - added support for Logical Units +-- 2019-02-01 - v0.4 - Added ability to disable TN3270E mode +-- + +author = "Philip Young aka Soldier of Fortran" +license = "Same as Nmap--See https://nmap.org/book/man-legal.html" +categories = {"safe", "discovery"} + +portrule = shortport.port_or_service({23,992}, {"tn3270"}) + +local hidden_field_mt = { + __tostring = function(t) + return ("(%d, %d): %s"):format(t.row, t.col, t.field) + end, +} + +action = function(host, port) + local commands = stdnse.get_script_args(SCRIPT_NAME .. '.commands') + local disable_tn3270e = stdnse.get_script_args(SCRIPT_NAME .. '.disable_tn3270e') or false + local lu = stdnse.get_script_args(SCRIPT_NAME .. '.lu') + local t = tn3270.Telnet:new() + if lu and not disable_tn3270e then + stdnse.debug("Setting LU: %s", lu) + t:set_lu(lu) + end + + if disable_tn3270e then + t:disable_tn3270e() + end + local status, err = t:initiate(host,port) + if not status then + stdnse.debug("Could not initiate TN3270: %s", err ) + return + else + if commands then + local run = stdnse.strsplit(";%s*", commands) + for i = 1, #run do + stdnse.debug(1,"Issuing Command (#%s of %s): %s", i, #run ,run[i]) + t:send_cursor(run[i]) + t:get_all_data() + t:get_screen_debug(2) + end + end + status = t:get_all_data() + local hidden + if t:any_hidden() then + hidden = {} + local hidden_buggers = t:hidden_fields() + local hidden_locs = t:hidden_fields_location() + for i = 1, #hidden_buggers do + local j = i*2 - 1 + local field = { + field = hidden_buggers[i], + row = t:BA_TO_ROW(hidden_locs[j]), + col = t:BA_TO_COL(hidden_locs[j]), + } + setmetatable(field, hidden_field_mt) + hidden[i] = field + end + end + local out = stdnse.output_table() + out.screen = t:get_screen() + out["hidden fields"] = hidden + if not disable_tn3270e then + out["logical unit"]= t:get_lu() + end + return out + end +end |