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#!/bin/sh
#
# Plugin to monitor network connections.
#
# Parameters:
#
# config (required)
# autoconf (optional - only used by munin-config)
#
#
# $Log$
# Revision 1.5 2004/12/09 18:00:00 jimmyo
# linux/fw_forwarded_local now initialises properly (Deb#284673).
#
# Revision 1.4 2004/10/27 17:50:01 jimmyo
# Fixed typo in linux/fw_forwarded_local (Deb#275535).
#
# Revision 1.3 2004/05/20 19:02:37 jimmyo
# Set categories on a bunch of plugins
#
# Revision 1.2 2004/05/15 21:33:29 jimmyo
# "Upped" som plugins from contrib/manual to manual or auto.
#
# Revision 1.1 2004/05/09 21:20:31 jimmyo
# Added fw_forwarded_local (by Xavier).
#
#
# Magic markers (optional - used by munin-config and some installation
# scripts):
#%# family=manual
#%# capabilities=autoconf
if [ "$1" = "autoconf" ]; then
if ( cat /proc/net/ip_conntrack 2>/dev/null >/dev/null ); then
echo yes
exit 0
else
if [ $? -eq 127 ]
then
echo "no (ipconntrack not found)"
exit 1
else
echo no
exit 1
fi
fi
fi
if [ "$1" = "config" ]; then
echo 'graph_title ipconntrack'
echo 'graph_args -l 0 --base 1000'
echo 'graph_vlabel established connections'
echo 'graph_category network'
echo 'forward.label forward'
echo 'forward.type GAUGE'
echo 'forward.max 500'''
echo 'local.label local'
echo 'local.type GAUGE'
echo 'local.max 500'''
exit 0
fi
cat /proc/net/ip_conntrack | grep ESTABLISHED | sed 's/.*src=\(.*\) .*dst=\(.*\) sport.*src=\(.*\) .*dst=\(.*\) spo.*/\1 \2 \3 \4/g' | awk 'BEGIN {{FORW=0} {LOCAL=0}} {if($1 != $4){ FORW += 1} else { LOCAL += 1}} END {{print "forward.value "FORW} {print "local.value "LOCAL}}'
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