71 lines
2.7 KiB
Plaintext
71 lines
2.7 KiB
Plaintext
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#!/bin/bash
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#/usr/lib/check_mk_agent/local
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export LANG=de_DE.UTF-8
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function confline # get first line from file $1 mathing $2, stripped of # and ; comment lines, stripped spaces and tabs down to spaces, remove trailing ;
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{
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echo $(cat $1|grep -v '^$\|^\s*\#'|sed -e "s/[[:space:]]\+/ /g"|sed s/^\ //|sed s/\;//|grep -i "$2"|head -n 1)
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}
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function ati # ipv4 to longint
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{
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ip4=$1; ipno=0
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for (( i=0 ; i<4 ; ++i )); do
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((ipno+=${ip4%%.*}*$((254**$((3-${i})))))) # .0 .255 should not be counted
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ip4=${ip4#*.}
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done
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echo $ipno
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}
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## static data
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bat_version=$(batctl -v);
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kernel=$(uname -r);
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release=$(lsb_release -ds);
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## Batman
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echo "0 Batman-Version Version=$bat_version; $bat_version"
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list=$(ls -F /sys/kernel/debug/batman_adv|grep /)
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for i in $list; do
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z=$(ls /sys/kernel/debug/batman_adv/$i|wc -l)
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if [ $z -ge 9 ]; then
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b=$(echo $i|cut -d '/' -f1)
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router=$(($(batctl -m $b o|wc -l)-2 ))
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clients=$(grep -cEo "\[.*W.*\]+" /sys/kernel/debug/batman_adv/$b/transtable_global)
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gateways=$(( $(batctl -m $b gwl|wc -l) -1 ))
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ips=$(( $(batctl -m $b dc|wc -l) - 2))
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wlow=$(( $router * 20 / 100 ))
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clow=$(( $router * 5 / 100 ))
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wlimit=$(( $router * 5 ))
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climit=$(( $router * 10 ))
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echo "P Batman-$b Router=$router.0;5:250;1:500|Clients=$clients.0;$wlow.0:$wlimit.0;$clow.0:$climit.0|Gateways=$gateways.0;0:3;0:5;|IPs=$ips.0";
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fi;
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done
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## isc-dhcpd-server leases
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# needs script https://github.com/eulenfunk/scripts/blob/master/dhcpleases
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if [ -r /opt/freifunk/dhcpleases ] ; then
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totalleases=2040
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activeleases=$(python /opt/freifunk/dhcpleases|grep "^| Total"|cut -d":" -f2|sed s/\ //)
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remainingleases=$(($totalleases - $activeleases))
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actwarn=$(($totalleases * 75 / 100))
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actcrit=$(($totalleases * 90 / 100))
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echo "P Dhcp-Leases active-leases=$activeleases.0;5:$actwarn;1:$actcrit active:$activeleases remaining:$remainingleases pool=$totalleases";
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fi
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#L2TP
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l_tunnel=$(ip a |grep l2tp | grep br-nodes -c);
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tunneldigger=$(ifconfig|grep br-nodes -c);
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echo "P L2TP Clients=$l_tunnel.0;1:100;0:150|Tunneldiggerbridges=$tunneldigger.0;0.1:1;0.1:2; L2TP-Clients:$l_tunnel Tunneldiggerbridges:$tunneldigger"
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## Conntrack
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conntrack=$(conntrack -C);
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conntrack_limit=$(sysctl -a 2>/dev/null |grep net.nf_conntrack_max|cut -d ' ' -f 3);
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conntrack_remain=$(echo $conntrack_limit - $conntrack|bc)
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wlow=0.1
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clow=1.1
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wlimit=$(echo $conntrack_limit *0.7|bc)
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climit=$(echo $conntrack_limit *0.9|bc)
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wrlimit=$(echo $conntrack_limit *0.3|bc)
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crlimit=$(echo $conntrack_limit *0.1|bc)
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echo "P Conntrack conntrack=$conntrack.0;$wlow:$wlimit;$clow:$climit|conntrack_remain=$conntrack_remain.0;$wrlimit:$conntrack_limit;$crlimit:$conntrack_limit; Conntrack:$conntrack Conntrack-Remain:$conntrack_remain Conntrack-Limit:$conntrack_limit"
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