l2tp

#!/bin/bash
#/usr/lib/check_mk_agent/local

export LANG=de_DE.UTF-8

function confline # get first line from file $1 mathing $2, stripped of # and ; comment lines, stripped spaces and tabs down to spaces, remove trailing ;
{
 echo $(cat $1|grep -v '^$\|^\s*\#'|sed -e "s/[[:space:]]\+/ /g"|sed s/^\ //|sed s/\;//|grep -i "$2"|head -n 1)
}

function conflines # get lines from file $1 mathing $2, stripped of # and ; comment lines, stripped spaces and tabs down to spaces, remove trailing ;
{
 echo "$(cat $1|grep -v '^$\|^\s*\#'|sed -e "s/[[:space:]]\+/ /g"|sed s/^\ //|sed s/\;//|grep -i $2)"
}

## static data
kernel=$(uname -r);
release=$(lsb_release -ds);

## ubuntu-Status
echo "0 Ubuntu-Release Ubuntu-Release=$release; $release - Kernel $kernel"
## ubuntu patch status
osversion=$(lsb_release -a|grep Description|cut -d: -f2|xargs)
nupdates=0
supdates=0
if [[ $osversion = "Ubuntu 14.04"* ]] ; then
  nupdates=$(/usr/lib/update-notifier/update-motd-updates-available|grep -i 'packages\ can\ be\ updated\|Software-Pakete'|cut -d" " -f1)
  supdates=$(/usr/lib/update-notifier/update-motd-updates-available|grep -i 'updates\ are\ security\ updates\|Sicherheitsaktualisierungen'|cut -d" " -f1)
 fi
if [[ $osversion = "Ubuntu 16.04"* ]] ; then
  nupdates=$(cat /var/lib/update-notifier/updates-available|grep -i 'packages\ can\ be\ updated\|Software-Pakete'|cut -d" " -f1)
  supdates=$(cat /var/lib/update-notifier/updates-available|grep -i 'updates\ are\ security\ updates\|Sicherheitsaktualisierungen'|cut -d" " -f1)
 fi
reboot=0
if [ -x /usr/lib/update-notifier/update-motd-reboot-required ]; then
  reboot=$(/usr/lib/update-notifier/update-motd-reboot-required|grep \*\*\**\*\*\*|wc -l)
 fi
echo "P Ubuntu-Patchstatus SecurityUpdates-waiting=$supdates.0;0:0.9;0:2|RegularUpdates-waiting=$nupdates.0;0:10;0:15|Reboot-waiting=$reboot.0;0:0.9;0:1"


## logins
logincount=$(who|wc -l)
logout="0 LocalUser CurrentLogins=$logincount.0; CurrentLogins:$logincount"
i=0
TFILE="/tmp/$(basename $0).$$.tmp"
who -u>$TFILE
while read line; do
  i=$(( i + 1))
  line=$(echo $line|sed s/\ +//|tr -s " ")
  user=$(echo $line|cut -d" " -f1)
  tty=$(echo $line|cut -d" " -f2)
  idle=$(echo $line|cut -d" " -f6)
  ip=$(echo $line|cut -d" " -f8)
  logout="$logout\n login-$i-user:$user login-$i-tty:$tty login-$i-idle:$idle login-$i-source:$ip"
 done<$TFILE
rm $TFILE
echo "$logout"

#Get data
l_tunnel=$(ip a |grep l2tp|grep tunneldigger -c);
tunneldigger=$(ifconfig|grep tunneldigger -c);

#Output
echo "P L2TP Clients=$l_tunnel.0;1:30;0:80|Tunneldiggerbridges=$tunneldigger.0;0.1:1;0.1:2; L2TP-Clients:$l_tunnel Tunneldiggerbridges:$tunneldigger"