130 lines
2.8 KiB
Plaintext
130 lines
2.8 KiB
Plaintext
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#!/bin/sh
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#
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# Copyright (C) 2009 Alexey Illarionov <littlesavage@rambler.ru>
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#
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# Wildcard plugin to monitor ipfw nat aliasing links count
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#
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# Usage: Link ipfwnat_<nat number> to this file. E.g,
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#
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# ln -s ipfwnat_ /etc/munin/node.d/ipfwnat_123
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#
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# ... will moninot nat number 123
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#
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# This plugin needs to be run as root. Sample plugins.conf:
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#
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# [ipfwnat_*]
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# user root
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#
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# Furthermore, nat configuration must contain "log" option. E.g.
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#
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# ipfw nat 123 config ip 198.76.28.4 log
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#
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# This plugin is based on the if_ plugin.
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#
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# Magic markers (optional - used by munin-config and some installation
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# scripts):
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#
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#%# family=auto
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#%# capabilities=autoconf suggest
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NAT_NUM=`basename $0 | sed 's/^ipfwnat_//g'`
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ipfw="/sbin/ipfw"
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if [ "$1" = "autoconf" ]; then
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if [ ! -x $ipfw ]; then
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echo "no ($ipfw not found)"
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exit 1
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fi
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err=$($ipfw nat show config 2>&1)
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if [ $? -ne 0 ]; then
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echo "no ($err)"
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exit 1
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fi
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echo "yes"
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exit 0
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fi
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if [ "$1" = "suggest" ]; then
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$ipfw nat show config 2> /dev/null | /usr/bin/awk '/nat [0-9]+ .+ log/{print $3;}'
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exit 0
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fi
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if [ "$1" = "config" ]; then
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echo "graph_title Ipfw NAT ${NAT_NUM} aliasing links count"
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echo 'graph_args --base 1000 -l 0'
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echo 'graph_vlabel links count'
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echo 'graph_noscale true'
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echo 'graph_category network'
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echo 'tcp.draw AREA'
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echo 'tcp.label tcp'
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echo 'tcp.info TCP aliasing links count'
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echo 'udp.draw STACK'
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echo 'udp.label udp'
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echo 'udp.info UDP aliasing links count'
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echo 'sctp.draw STACK'
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echo 'sctp.label sctp'
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echo 'sctp.info SCTP aliasing links count'
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echo 'icmp.draw STACK'
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echo 'icmp.label icmp'
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echo 'icmp.info ICMP aliasing links count'
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echo 'pptp.draw STACK'
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echo 'pptp.label pptp'
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echo 'pptp.info PPTP aliasing links count'
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echo 'proto.draw STACK'
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echo 'proto.label proto'
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echo 'proto.info proto aliasing links count'
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echo 'fragid.draw STACK'
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echo 'fragid.label frag_id'
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echo 'fragid.info Fragment id aliasing links count'
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echo 'fragptr.draw STACK'
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echo 'fragptr.label frag_ptr'
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echo 'fragptr.info Fragment ptr aliasing links count'
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echo "graph_info Ipfw NAT ${NAT_NUM} aliasing links count."
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exit 0
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fi
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$ipfw nat ${NAT_NUM} show 2>/dev/null | /usr/bin/awk '
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BEGIN {
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res["tcp"] = "U";
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res["udp"] = "U";
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res["sctp"] = "U";
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res["icmp"] = "U";
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res["pptp"] = "U";
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res["proto"] = "U";
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res["frag_id"] = "U";
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res["frag_ptr"] = "U";
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}
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/^nat [0-9]+:/{
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split($0, a, /[,\/:[:space:]]+/);
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for (f in a) {
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if (a[f] ~ /^[a-z_]+=[0-9]+$/) {
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split(a[f], v, /=/);
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res[v[1]] += (v[2] + 0);
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}
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}
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}
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END {
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printf "tcp.value %s\n", res["tcp"];
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printf "udp.value %s\n", res["udp"];
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printf "sctp.value %s\n", res["sctp"];
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printf "icmp.value %s\n", res["icmp"];
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printf "pptp.value %s\n", res["pptp"];
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printf "proto.value %s\n", res["proto"];
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printf "fragid.value %s\n", res["frag_id"];
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printf "fragptr.value %s\n", res["frag_ptr"];
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}
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'
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