mirror of
https://github.com/munin-monitoring/contrib.git
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64 lines
1.5 KiB
Text
64 lines
1.5 KiB
Text
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#!/bin/sh
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#
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# tcp: Plugin to monitor IPV4/6 TCP socket status on a Linux host.
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#
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# License: GPLv2
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#
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# Copyright 2009 Tim Small - tim@seoss.co.uk
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#
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# Parameters supported:
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#
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# config
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# autoconf
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#
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#
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# Magic markers?
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#%# family=auto
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#%# capabilities=autoconf suggest
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case $1 in
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config)
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cat <<EOF
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graph_title TCP
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graph_vlabel TCP Sockets
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graph_category network
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graph_args -l 0
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graph_info TCP socket states for the local machine
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EOF
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for i in established syn_sent syn_recv fin_wait1 fin_wait2 time_wait close close_wait last_ack listen closing
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do
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echo ${i}.label $i
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echo ${i}.draw LINE2
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echo ${i}.info Sockets in state $i
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done
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exit 0
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;;
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autoconf)
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if [ -f /proc/net/tcp -o -f /proc/net/tcp6 ] ; then
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echo yes
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exit 0
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else
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echo no
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exit 1
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fi
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esac
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# See #include <netinet/tcp.h>
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cat /proc/net/tcp* | awk '
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BEGIN { STATE["01"]=STATE["02"]=STATE["03"]=STATE["04"]=STATE["05"]=STATE["06"]=STATE["07"]=STATE["08"]=STATE["09"]=STATE["0A"]=STATE["0B"]=0; }
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match ($4, /0[0-9A-B]/) { STATE[$4]++; }
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END { print "established.value " STATE["01"];
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print "syn_sent.value " STATE["02"];
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print "syn_recv.value " STATE["03"];
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print "fin_wait1.value " STATE["04"];
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print "fin_wait2.value " STATE["05"];
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print "time_wait.value " STATE["06"];
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print "close.value " STATE["07"];
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print "close_wait.value " STATE["08"];
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print "last_ack.value " STATE["09"];
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print "listen.value " STATE["0A"];
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print "closing.value " STATE["0B"];
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}'
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