nix/pkgs/openwrt: add usteer stats

nix/pkgs/openwrt/default.nix

@@ -92,6 +92,7 @@ in rec {
             "collectd"
             "collectd-mod-iwinfo" "collectd-mod-network"
             "collectd-mod-interface" "collectd-mod-load" "collectd-mod-cpu"
+            "collectd-mod-exec"
           ] ++ (
             if args.variant != "tiny"
             then [
@@ -117,6 +118,8 @@ in rec {
             cat > $out/etc/uci-defaults/99-zentralwerk <<EOF
             ${uciConfig hostName}
             EOF
+            cp ${./usteer-info.sh} $out/usr/sbin/usteer-info.sh
+            cp ${./usteer-stats.sh} $out/usr/bin/usteer-stats.sh
           '';
         });
 

nix/pkgs/openwrt/uci-config.nix

@@ -367,6 +367,7 @@ in
     # the gateways is reachable
     cat >/etc/crontabs/root <<__CRON__
     * * * * *	/usr/sbin/wifi-on-link.sh
+    * * * * *	/usr/sbin/usteer-info.sh
     __CRON__
     cat >/usr/sbin/wifi-on-link.sh <<__SH__
     #!/bin/sh
@@ -413,9 +414,13 @@ in
     LoadPlugin interface
     LoadPlugin iwinfo
     LoadPlugin network
+    LoadPlugin exec
     <Plugin network>
       Server "${config.site.net.serv.hosts6.dn42.stats}" "25826"
     </Plugin>
+    <Plugin exec>
+      Exec "nobody" "/usr/bin/usteer-stats.sh"
+    </Plugin>
     COLLECTD
   ''}
 

nix/pkgs/openwrt/usteer-info.sh

@@ -0,0 +1,3 @@
+#! /bin/sh
+[ -p /var/run/usteer-info ] || exit 0
+exec /bin/ubus call usteer local_info > /var/run/usteer-info

nix/pkgs/openwrt/usteer-stats.sh

@@ -0,0 +1,23 @@
+#! /bin/sh
+
+HOSTNAME=`cat /proc/sys/kernel/hostname`
+INTERVAL=60
+
+[ -p /var/run/usteer-info ] || mkfifo /var/run/usteer-info
+
+while true; do
+    eval $(cat /var/run/usteer-info | jsonfilter \
+           -e 'LOAD=@["hostapd.wlan2-c3d2"].load' \
+           -e 'NOISE=@["hostapd.wlan2-c3d2"].noise' \
+           -e 'N_ASSOC=@["hostapd.wlan2-c3d2"].n_assoc' \
+           -e 'FREQ=@["hostapd.wlan2-c3d2"].freq' \
+           -e 'ROAM_SOURCE=@["hostapd.wlan2-c3d2"].roam_events.source' \
+           -e 'ROAM_TARGET=@["hostapd.wlan2-c3d2"].roam_events.target'
+        )
+    echo "PUTVAL \"$HOSTNAME/exec-usteer_local_info/load\" interval=$INTERVAL N:$LOAD"
+    echo "PUTVAL \"$HOSTNAME/exec-usteer_local_info/noise\" interval=$INTERVAL N:$NOISE"
+    echo "PUTVAL \"$HOSTNAME/exec-usteer_local_info/n_assoc\" interval=$INTERVAL N:$N_ASSOC"
+    echo "PUTVAL \"$HOSTNAME/exec-usteer_local_info/freq\" interval=$INTERVAL N:$FREQ"
+    echo "PUTVAL \"$HOSTNAME/exec-usteer_local_info/roam_source\" interval=$INTERVAL N:$ROAM_SOURCE"
+    echo "PUTVAL \"$HOSTNAME/exec-usteer_local_info/roam_target\" interval=$INTERVAL N:$ROAM_TARGET"
+done