utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/dawn.lua

   1 local ubus = require "ubus"
   2
   3 local function scrape()
   4   local metric_dawn_ap_channel_utilization_ratio = metric("dawn_ap_channel_utilization_ratio","gauge")
   5   local metric_dawn_ap_stations_total = metric("dawn_ap_stations_total","gauge")
   6   local metric_dawn_station_signal_dbm = metric("dawn_station_signal_dbm","gauge")
   7
   8   local u = ubus.connect()
   9   local network = u:call("dawn", "get_network", {})
  10
  11   for ssid, ssid_table in pairs(network) do
  12     for ap, ap_table in pairs(ssid_table) do
  13
  14       if (ap_table['local'] == true) then
  15
  16         local ht_support = (ap_table['ht_support'] == true) and 1 or 0
  17         local vht_support = (ap_table['vht_support'] == true) and 1 or 0
  18
  19         local labels = {
  20           ssid = ssid,
  21           bssid = ap,
  22           freq = ap_table['freq'],
  23           ht_support = ht_support,
  24           vht_support = vht_support,
  25           neighbor_report = ap_table['neighbor_report'],
  26         }
  27         metric_dawn_ap_channel_utilization_ratio(labels, ap_table['channel_utilization'] / 255)
  28         metric_dawn_ap_stations_total(labels, ap_table['num_sta'])
  29
  30         for client, client_table in pairs(ap_table) do
  31           if (type(client_table) == "table") then
  32
  33             local client_ht_support = (client_table['ht'] == true) and 1 or 0
  34             local client_vht_support = (client_table['vht'] == true) and 1 or 0
  35             local client_signal = client_table['signal'] or -255
  36
  37             local labels = {
  38               ssid = ssid,
  39               bssid = ap,
  40               mac = client,
  41               ht_support = client_ht_support,
  42               vht_support = client_vht_support,
  43             }
  44             metric_dawn_station_signal_dbm(labels, client_signal)
  45           end
  46         end
  47       end
  48     end
  49   end
  50 end
  51
  52 return { scrape = scrape }