trapserver.lua

   1 local snmp = require "snmp"
   2 local mib = snmp.mib
   3 require "stdlib"
   4 local logging = require "logging.console"
   5
   6 local log = logging.console("%message")
   7 log:setLevel("DEBUG")
   8 local info = function(fmt, ...) log:info(string.format(fmt.."\n", unpack(arg))) end
   9 local debug = function(fmt, ...) log:debug(string.format(fmt.."\n", unpack(arg))) end
  10
  11 info("Initialising SNMP")
  12 if snmp.gettrapd() == "straps" then
  13   local err = snmp.inittrap("straps")
  14   assert(not err, err)
  15 else
  16   info("Support for `%s' has been selected", snmp.gettrapd())
  17 end
  18
  19 local function inform_cb(vlist, ip, session)
  20   debug("  DEFAULT INFORM CALLBACK: inform sent by : "..ip)
  21   for _,vb in ipairs(vlist) do
  22     debug("  %s", snmp.sprintvar(vb))
  23   end
  24   inform_done = true
  25 end
  26 local function trap_cb(vlist, ip, host, session)
  27   debug("  DEFAULT TRAP CALLBACK: trap sent by :%s (%s)", host, ip)
  28   for _,vb in ipairs(vlist) do
  29     debug("  %s", session.sprintvar(vb))
  30   end
  31   trap_done = true
  32 end
  33
  34
  35 local sess, err = snmp.open{
  36   community = "private",
  37   peer = "localhost",
  38   version = snmp.SNMPv2C,
  39   callback = test_cb,
  40   inform = inform_cb,
  41   trap = trap_cb
  42 }
  43
  44 --os.execute("snmpinform -v 2c -c public localhost 3 0 sysName.0 s 'hello'")
  45 --while true do
  46 --  err = snmp.event()
  47 --end
  48 err = snmp.loop()
  49 print(err)
  50 assert(not err, err)