Munin contributed plugins

#!/bin/sh

#

# iptables Accounting Tool

#

# What it does:

#  It accounts data based on the counters of iptables

#

# How it works:

#  You have to create a rule like this:

#   iptables -I INPUT -m comment --comment "ACC-Name" ...

#   iptables -I OUTPUT -m comment --comment "ACC-Name" ...

#

#  You can create custom rules which matches any package which should

#  be accounted. But the comment *must* begin with "ACC-"  and a rule

#  should be created for input and output for measuring the direction.

#

#  Please specify no target on this rule, so it just counts the data.

#

# Some Examples:

#  iptables -I INPUT -p udp -d 12.34.56.78 --dport 8767 -m comment --comment "ACC-teamspeak"

#  iptables -I OUTPUT -p udp -s 12.34.56.78 --sport 8767 -m comment --comment "ACC-teamspeak"

#  iptables -I INPUT -p tcp -d 12.34.56.78 --dport 25 -m comment --comment "ACC-mailserver"

#  iptables -I OUTPUT -p tcp -s 12.34.56.78 --sport 25 -m comment --comment "ACC-mailserver"

#

# This plugin needs to be run as root for iptables to work!

#

# created by Markus Frosch aka lazyfrosch

# more Information on: http://www.lazyfrosch.de/linux/munin-ipt-accounting

# based on ip_ by jimmyo

#

#$Log$

#Revision 0.1  2007/06/13 16:35:00  lazyfrosch

#First Release

#

# Magic markers (optional - used by munin-config and some installation

# scripts):

#

#%# family=auto

#%# capabilities=autoconf suggest

ACC=`basename $0 | sed 's/^ipt_accounting_//g'`

if [ "$1" = "autoconf" ]; then

        if [ -r /proc/net/dev ]; then

                iptables -L INPUT -v -n -x -w >/dev/null 2>/dev/null

                if [ $? -gt 0 ]; then

                        echo "no (could not run iptables as user `whoami`)"

                        exit 1

                else

                        echo yes

                        exit 0

                fi

        else

                echo "no (/proc/net/dev not found)"

                exit 1

        fi

fi

if [ "$1" = "suggest" ]; then

        iptables -L INPUT -v -x -n -w 2>/dev/null | sed -n 's/^.*\/\* ACC\-\([a-zA-Z]*\) \*\/.*$/\1/p'

        exit 0

fi

if [ "$1" = "config" ]; then

        echo "graph_order out in"

        echo "graph_title iptables traffic for $ACC"

        echo 'graph_args --base 1000'

        echo 'graph_vlabel bits per ${graph_period}'

        echo 'graph_category network'

        echo 'out.label sent'

        echo 'out.type DERIVE'

        echo 'out.min 0'

        echo 'out.cdef out,8,*'

        echo 'in.label received'

        echo 'in.type DERIVE'

        echo 'in.min 0'

        echo 'in.cdef in,8,*'

        exit 0

fi;

iptables -L INPUT -v -n -x -w | grep -m1 "\/\* ACC\-"$ACC" \*\/" | awk "{ print \"in.value \" \$2 }"

iptables -L OUTPUT -v -n -x -w | grep -m1 "\/\* ACC\-"$ACC" \*\/" | awk "{ print \"out.value \" \$2 }"