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prometheus-node-exporter-lua: hostad ubus stats

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There is already the hostapd_stations exporter, which uses
hostapd-utils (more precisely hostapd-cli) to get client statistics.
However, the ubus interface is permanently integrated under hostapd
in OpenWrt. So this exporter needs one dependency less.

For now it exports mainly the rrm statistics. Many people are
interested in what your device supports. The exporter provides
information about the radio-resource-managment extensions.

Signed-off-by: Nick Hainke <vincent@systemli.org>
This commit is contained in:
Nick Hainke 2020-10-08 14:40:00 +02:00
parent 871975ddff
commit d34d788735
2 changed files with 81 additions and 1 deletions
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14
utils/prometheus-node-exporter-lua/Makefile
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@ -4,7 +4,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=prometheus-node-exporter-lua
PKG_VERSION:=2020.10.01
PKG_VERSION:=2020.10.10
PKG_RELEASE:=1
PKG_MAINTAINER:=Etienne CHAMPETIER <champetier.etienne@gmail.com>
@ -100,6 +100,17 @@ define Package/prometheus-node-exporter-lua-hostapd_stations/install
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/hostapd_stations.lua $(1)/usr/lib/lua/prometheus-collectors/
endef
define Package/prometheus-node-exporter-lua-hostapd_ubus_stations
$(call Package/prometheus-node-exporter-lua/Default)
TITLE+= (hostapd_ubus_stations collector)
DEPENDS:=prometheus-node-exporter-lua +luabitop +libubus-lua
endef
define Package/prometheus-node-exporter-lua-hostapd_ubus_stations/install
$(INSTALL_DIR) $(1)/usr/lib/lua/prometheus-collectors
$(INSTALL_BIN) ./files/usr/lib/lua/prometheus-collectors/hostapd_ubus_stations.lua $(1)/usr/lib/lua/prometheus-collectors/
endef
define Package/prometheus-node-exporter-lua-ltq-dsl
$(call Package/prometheus-node-exporter-lua/Default)
TITLE+= (lantiq dsl collector)
@ -193,6 +204,7 @@ $(eval $(call BuildPackage,prometheus-node-exporter-lua-bmx6))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-bmx7))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-dawn))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-hostapd_stations))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-hostapd_ubus_stations))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-ltq-dsl))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-nat_traffic))
$(eval $(call BuildPackage,prometheus-node-exporter-lua-netstat))

68
utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/hostapd_ubus_stations.lua Normal file
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@ -0,0 +1,68 @@
local ubus = require "ubus"
local bit = require "bit32"
local function get_wifi_interfaces() -- based on hostapd_stations.lua
local u = ubus.connect()
local status = u:call("network.wireless", "status", {})
local interfaces = {}
for _, dev_table in pairs(status) do
for _, intf in ipairs(dev_table['interfaces']) do
table.insert(interfaces, intf['ifname'])
end
end
return interfaces
end
local function scrape()
local metric_hostapd_ubus_station_rrm_caps_link_measurement =
metric("hostapd_ubus_station_rrm_caps_link_measurement", "gauge")
local metric_hostapd_ubus_station_rrm_caps_neighbor_report =
metric("hostapd_ubus_station_rrm_caps_neighbor_report", "gauge")
local metric_hostapd_ubus_station_rrm_caps_beacon_report_passive =
metric("hostapd_ubus_station_rrm_caps_beacon_report_passive", "gauge")
local metric_hostapd_ubus_station_rrm_caps_beacon_report_active =
metric("hostapd_ubus_station_rrm_caps_beacon_report_active", "gauge")
local metric_hostapd_ubus_station_rrm_caps_beacon_report_table =
metric("hostapd_ubus_station_rrm_caps_beacon_report_table", "gauge")
local metric_hostapd_ubus_station_rrm_caps_lci_measurement =
metric("hostapd_ubus_station_rrm_caps_lci_measurement", "gauge")
local metric_hostapd_ubus_station_rrm_caps_ftm_range_report =
metric("hostapd_ubus_station_rrm_caps_ftm_range_report", "gauge")
local function evaluate_metrics(ifname, freq, station, vals)
local label_station = {
ifname = ifname,
freq = freq,
station = station
}
local rrm_caps_link_measurement = bit.band(bit.lshift(1, 0), vals['rrm'][1]) > 0 and 1 or 0
local rrm_caps_neighbor_report = bit.band(bit.lshift(1, 1), vals['rrm'][1]) > 0 and 1 or 0
local rrm_caps_beacon_report_passive = bit.band(bit.lshift(1, 4), vals['rrm'][1]) > 0 and 1 or 0
local rrm_caps_beacon_report_active = bit.band(bit.lshift(1, 5), vals['rrm'][1]) > 0 and 1 or 0
local rrm_caps_beacon_report_table = bit.band(bit.lshift(1, 6), vals['rrm'][1]) > 0 and 1 or 0
local rrm_caps_lci_measurement = bit.band(bit.lshift(1, 4), vals['rrm'][2]) > 0 and 1 or 0
local rrm_caps_ftm_range_report = bit.band(bit.lshift(1, 2), vals['rrm'][5]) > 0 and 1 or 0
metric_hostapd_ubus_station_rrm_caps_link_measurement(label_station, rrm_caps_link_measurement)
metric_hostapd_ubus_station_rrm_caps_neighbor_report(label_station, rrm_caps_neighbor_report)
metric_hostapd_ubus_station_rrm_caps_beacon_report_passive(label_station, rrm_caps_beacon_report_passive)
metric_hostapd_ubus_station_rrm_caps_beacon_report_active(label_station, rrm_caps_beacon_report_active)
metric_hostapd_ubus_station_rrm_caps_beacon_report_table(label_station, rrm_caps_beacon_report_table)
metric_hostapd_ubus_station_rrm_caps_lci_measurement(label_station, rrm_caps_lci_measurement)
metric_hostapd_ubus_station_rrm_caps_ftm_range_report(label_station, rrm_caps_ftm_range_report)
end
for _, ifname in ipairs(get_wifi_interfaces()) do
local u = ubus.connect()
local clients_call = u:call("hostapd." .. ifname, "get_clients", {})
for client, client_table in pairs(clients_call['clients']) do
evaluate_metrics(ifname, clients_call['freq'], client, client_table)
end
end
end
return { scrape = scrape }