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

   1 local ubus = require "ubus"
   2 local iwinfo = require "iwinfo"
   3
   4 local function scrape()
   5   local metric_wifi_station_signal = metric("wifi_station_signal_dbm","gauge")
   6   local metric_wifi_station_tx_packets = metric("wifi_station_tx_packets_total","gauge")
   7   local metric_wifi_station_rx_packets = metric("wifi_station_rx_packets_total","gauge")
   8
   9   local u = ubus.connect()
  10   local status = u:call("network.wireless", "status", {})
  11
  12   for dev, dev_table in pairs(status) do
  13     for _, intf in ipairs(dev_table['interfaces']) do
  14       local ifname = intf['ifname']
  15       local iw = iwinfo[iwinfo.type(ifname)]
  16
  17       local assoclist = iw.assoclist(ifname)
  18       for mac, station in pairs(assoclist) do
  19         local labels = {
  20           ifname = ifname,
  21           mac = mac,
  22         }
  23         metric_wifi_station_signal(labels, station.signal)
  24         metric_wifi_station_tx_packets(labels, station.tx_packets)
  25         metric_wifi_station_rx_packets(labels, station.rx_packets)
  26       end
  27     end
  28   end
  29 end
  30
  31 return { scrape = scrape }