Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- alarmsystem [14.01.2018 18:37] – havelock
+++ alarmsystem [14.01.2018 19:10] – havelock
@@ Zeile 39: / Zeile 39: @@
     * Am USB-Anschluß kann ein GPS-Stick angeschlossen werden
   * WR841N/ND im Fenster
+===== Software =====
+Das Link-Überwachungsprogramm
+<file lua neighbourwatch.lua>
+#!/usr/bin/lua
+function file_exists(name)
+    local f=io.open(name,"r")
+    if f~=nil then io.close(f) return true else return false end
+end
+function watch_mac(mac)
+    command = "batctl n | grep -i " .. mac .. " | tr -s ' ' | cut -d' ' -f4"
+    local handle = io.popen(command)
+    local result = handle:read("*a")
+    handle:close()
+    return result:match("(.-)%s*$")
+end
+counterfile = "/var/run/alarmcounter"
+lastseen = watch_mac("a2:1b:3a:0b:3e:72")
+age_seconds = tonumber(lastseen:sub(1, -2)) or 1000
+if age_seconds > 30 then
+    if not file_exists(counterfile) then
+        file = io.open(counterfile, "w")
+        file:write("1")
+        file:close()
+        command = "ssh alarmuser@srv01.ffpi ./alarmmail.sh"
+        local handle = io.popen(command)
+        local result = handle:read("*a")
+        handle:close()
+    end
+else
+    if file_exists(counterfile) then
+        os.remove(counterfile)
+    end
+end
+</file>
+Der Cronjob der das Überwachungsscript regelmäßig aufruft
+<file conf /usr/lib/micron.d/neighbourwatch>
+* * * * * /root/neighbourwatch.lua
+</file>

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