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#!/bin/sh
#
# Wildcard-plugin to monitor IP addresses through iptables. To monitor an
# IP, link ip_<ipaddress> to this file. E.g.
#
# ln -s /usr/share/node/node/plugins-auto/ip_ /etc/munin/node.d/ip_192.168.0.1
#
# ...will monitor the IP 192.168.0.1.
#
# Aditionally, you need these iptables rules as the first rules (they don't do anything, just make packet counts)
#
# iptables -A INPUT -d 192.168.0.1
# iptables -A OUTPUT -s 192.168.0.1
#
# Furthermore, this plugin needs to be run as root for iptables to work
#
# This plugin is based on the if_ plugin.
#
#$Log$
#Revision 1.7 2004/12/10 10:47:49 jimmyo
#Change name from ${scale} to ${graph_period}, to be more consistent.
#
#Revision 1.6 2004/12/09 22:12:56 jimmyo
#Added "graph_period" option, to make "graph_sums" usable.
#
#Revision 1.5 2004/11/21 00:17:12 jimmyo
#Changed a lot of plugins so they use DERIVE instead of COUNTER.
#
#Revision 1.4 2004/09/10 23:06:30 jimmyo
#Added accidentally deleted exit.
#
#Revision 1.3 2004/09/10 23:02:22 jimmyo
#Plugin linux/ip_ now does more proper autoconfig/suggest.
#
#Revision 1.2 2004/05/20 13:57:12 jimmyo
#Set categories to some of the plugins.
#
#Revision 1.1 2004/05/16 16:28:40 jimmyo
#Linux/ip_ wildcard plugin contributed by Mathy Vanvoorden (SF#954851).
#
#
# Magic markers (optional - used by munin-config and some installation
# scripts):
#
#%# family=auto
#%# capabilities=autoconf suggest
IP=`basename $0 | sed 's/^ip_//g'`
if [ "$1" = "autoconf" ]; then
if [ -r /proc/net/dev ]; then
iptables -L INPUT -v -n -x >/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 -n -x 2>/dev/null | awk '$8 ~ /[0-9]/ { if (done[$8]!=1) {print $8; done[$8]=1;}}'
exit 0
fi
if [ "$1" = "config" ]; then
echo "graph_order out in"
echo "graph_title $IP traffic"
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 | grep -m1 $IP | awk "{ print \"in.value \" \$2 }"
iptables -L OUTPUT -v -n -x | grep -m1 $IP | awk "{ print \"out.value \" \$2 }"
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