--
-- (C) 2019-20 - ntop.org
--

-- Companion scripts (in addition to i18n)
-- scripts/callbacks/status_defs/status_udp_unidirectional.lua
-- scripts/callbacks/interface/flow/udp.lua

local flow_consts = require("flow_consts")
local user_scripts = require("user_scripts")

-- #################################################################

local script = {
   l4_proto = "udp",

   -- NOTE: hooks defined below
   hooks = {},

   gui = {
      i18n_title = "flow_callbacks_config.udp_unidirectional",
      i18n_description = "flow_callbacks_config.udp_unidirectional_description",
   }
}

-- #################################################################

function script.hooks.all(now)
   if(flow.getPacketsRcvd() == 0) then
      -- Now check if the recipient isn't a broadcast/multicast address
      if(flow.isServerUnicast()) then
         flow.setStatus(flow_consts.status_types.status_udp_unidirectional.status_id)
      end
   else
      flow.clearStatus(flow_consts.status_types.status_udp_unidirectional.status_id)
   end
end

-- #################################################################

return script