Current File : //backups/router/usr/local/share/munin/plugins/if_
#!/bin/sh
# -*- sh -*-
#
# Wildcard-plugin to monitor network interfaces. To monitor an
# interface, link if_<interface> to this file. E.g.
#
# ln -s /usr/share/munin/node/plugins-auto/if_ /etc/munin/node.d/if_eth0
#
# ...will monitor eth0.
#
# To aggregate all network interfaces on the system (except lo0),
# link if_aggregated to this file.
#
# Any device found in /usr/bin/netstat can be monitored.
#
# Magic markers (optional - used by munin-config and some installation
# scripts):
#
#%# family=auto
#%# capabilities=autoconf suggest
INTERFACE=${0##*if_}
if [ "$1" = "autoconf" ]; then
if [ -x /sbin/ifconfig -o -x /usr/bin/netstat ]; then
echo yes
exit 0
else
echo "no (/usr/bin/netstat not found)"
exit 0
fi
fi
if [ "$1" = "suggest" ]; then
if [ -x /sbin/ifconfig ]
then
ifconfig -l | sed -Ee 's/[[:<:]](pfsync|faith|pf(log|sync)|lo|plip|carp|enc|fwe)[^ ]*//g' | xargs -n 1 echo
exit 0
elif [ -x /usr/bin/netstat ]; then
netstat -i -b -n | sed -n -e '/^faith/d' -e '/^lo[0-9]/d' -e '/^pf(log|sync)/d' -e '/<Link#[0-9]*>/s/\** .*//p'
exit 0
else
exit 1
fi
fi
if [ "$1" = "config" ]; then
echo "graph_order rbytes obytes"
echo "graph_title $INTERFACE traffic"
echo 'graph_args --base 1000'
echo 'graph_vlabel bits per ${graph_period} in (-) / out (+)'
echo 'graph_category network'
echo "graph_info This graph shows the traffic of the $INTERFACE network interface. Please note that the traffic is shown in bits per second, not bytes. IMPORTANT: On older BSD systems the data source for this plugin uses 32bit counters, this plugin is really unreliable and unsuitable for most 100Mb (or faster) interfaces, where bursts are expected to exceed 50Mbps. This means that this plugin is unsuitable for old production environments."
echo 'rbytes.label received'
echo 'rbytes.type DERIVE'
echo 'rbytes.graph no'
echo 'rbytes.cdef rbytes,8,*'
echo 'rbytes.min 0'
echo 'obytes.label bps'
echo 'obytes.type DERIVE'
echo 'obytes.negative rbytes'
echo 'obytes.cdef obytes,8,*'
echo 'obytes.min 0'
echo "obytes.info Traffic sent (+) and received (-) on the $INTERFACE network interface."
exit 0
fi
if [ "$INTERFACE" = "aggregated" ]; then
/usr/bin/netstat -i -b -n | grep -v '^lo' | awk '
BEGIN { rsum = 0; osum = 0; }
/<Link#[0-9]*>/ {
if (NF == 10) {
rsum += $6; osum += $9;
} else if (NF == 11) {
if ($4 ~ /:/) {
rsum += $7; osum += $10;
} else {
rsum += $7; osum += $10;
}
} else { # NF == 12
rsum += $8; osum += $11;
}
}
END {
printf "rbytes.value %i\n", rsum;
printf "obytes.value %i\n", osum;
}'
else
/usr/bin/netstat -i -b -n -I $INTERFACE | awk '
/<Link#[0-9]*>/ {
if (NF == 10) {
print "rbytes.value", $6;
print "obytes.value", $9;
} else if (NF == 11) {
if ($4 ~ /:/) {
print "rbytes.value", $7;
print "obytes.value", $10;
} else {
print "rbytes.value", $7;
print "obytes.value", $10;
}
} else { # NF == 12
print "rbytes.value", $8;
print "obytes.value", $11;
}
}'
fi
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