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contrib-munin/plugins/pf/pf_tables_

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#!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
pf_tables : Munin plugin to monitor pf tables.
Inout: bandwidth usage for table
Addresses: number of entries in table
=head1 APPLICABLE SYSTEMS
Should work on any BSD that has pf(4).
Examples:
=over
=item pf_tables_inout_tablename
=item pf_tables_addresses_authenticated
=item pf_tables_addresses_badboys
=head1 CONFIGURATION
[pf_tables_*]
user root
=head1 INTERPRETATION
The plugin simply runs the pfctl -sTables -vvv command and counts the number of
Addresses and InBytes/OutBytes in each table.
=head1 BUGS
Only tested extensively on FreeBSD.
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf suggest
=head1 VERSION
$Id$
=head1 AUTHOR
Copyright (C) 2015.
Original version by Luc Duchosal (at) arcantel (dot) ch.
Created by Luc Duchosal, 2015
=head1 LICENSE
BSD
=cut
use strict;
use Munin::Plugin;
$0 =~ /pf_tables_(addresses|inout)_(.+)$/;
my $name = $2;
my $operation = $1;
if ( defined($ARGV[0])) {
if ($ARGV[0] eq 'autoconf') {
print "yes\n";
exit 0;
}
if ($ARGV[0] eq "config") {
if (!defined($name)) {
print "Unknown table\n";
exit 0;
}
if (!defined($operation)) {
print "Unknown operation\n";
exit 0;
}
if ($operation =~ m/addresses/) {
print "graph_title Connected users ($name)\n";
print "graph_args --base 1000 -l 0\n";
print "graph_vlabel Users\n";
print "graph_scale no\n";
print "graph_category network\n";
print "graph_printf %3.0lf\n";
print "users.label users\n";
print "users.draw AREASTACK\n";
print "users.colour 00C000\n";
foreach my $field (qw(users)) {
print_thresholds($field);
}
}
if ($operation =~ m/inout/) {
print "graph_title Network bandwidth ($name)\n";
print "graph_args --base 1024 -l 0\n";
print "graph_vlabel Bandwidth\n";
print "graph_scale yes\n";
print "graph_category network\n";
# print "graph_printf %3.0lf\n";
print "in.label in\n";
print "in.type DERIVE\n";
print "in.draw AREA\n";
print "in.colour C00000\n";
print "in.cdef in,8,*\n";
print "in.min 0\n";
print "in.graph no\n";
print "out.label bps\n";
print "out.type DERIVE\n";
print "out.negative in\n";
print "out.draw AREA\n";
print "out.colour COLOUR18\n";
print "out.cdef out,8,*\n";
print "out.min 0\n";
foreach my $field (qw(in out)) {
print_thresholds($field);
}
}
exit 0;
}
if ($ARGV[0] eq "suggest") {
my %tables = &tables();
foreach my $key (keys(%tables)) {
print "addresses_$key\n";
print "inout_$key\n";
}
exit 0;
}
}
if (!defined($name)) {
print "Usage: pf_tables_addresses_tablename or pf_tables_inout_tablename\n";
exit 1;
}
my %tables = &tables();
if (!exists $tables{$name}) {
print "Unknown table name $name\n";
exit 2;
}
if ($operation =~ m/addresses/) {
my $users = $tables{$name}->{"addresses"};
print "users.value $users\n";
}
if ($operation =~ m/inout/) {
my $in = $tables{$name}->{"inpassbytes"};
my $out = $tables{$name}->{"outpassbytes"};
print "in.value $in\n";
print "out.value $out\n";
}
sub tables {
# # pfctl -s Tables -vv
# -pa-r-- auth
# Addresses: 0
# Cleared: Fri Sep 18 17:34:42 2015
# References: [ Anchors: 0 Rules: 14 ]
# Evaluations: [ NoMatch: 43624 Match: 788 ]
# In/Block: [ Packets: 0 Bytes: 0 ]
# In/Pass: [ Packets: 30908 Bytes: 2704516 ]
# In/XPass: [ Packets: 124 Bytes: 7897 ]
# Out/Block: [ Packets: 0 Bytes: 0 ]
# Out/Pass: [ Packets: 30288 Bytes: 26313114 ]
# Out/XPass: [ Packets: 89 Bytes: 21166 ]
my $output = `/sbin/pfctl -s Tables -vv 2> /dev/null`;
my %tables;
my $name;
foreach (split(/\n/, $output)) {
if (m|^[cpairhC\-]{7}\s+(\S+)$|) {
$name = $1;
$name =~ s/\-/_/;
$tables{$name}->{"name"} = $name;
next;
}
if (m|Addresses:\s+([0-9]+)$|) {
$tables{$name}->{"addresses"} = $1;
next;
}
if (m|Cleared:\s+(.+)$|) {
$tables{$name}->{"cleared"} = $1;
next;
}
if (m|In/Block:\s+\[\s+Packets:\s+([0-9]+)\s+Bytes:\s+([0-9]+)\s+\]$|) {
$tables{$name}->{"inblockpackets"} = $1;
$tables{$name}->{"inblockbytes"} = $2;
next;
}
if (m|In/Pass:\s+\[\s+Packets:\s+([0-9]+)\s+Bytes:\s+([0-9]+)\s+\]$|) {
$tables{$name}->{"inpasspackets"} = $1;
$tables{$name}->{"inpassbytes"} = $2;
next;
}
if (m|In/XPass:\s+\[\s+Packets:\s+([0-9]+)\s+Bytes:\s+([0-9]+)\s+\]$|) {
$tables{$name}->{"inxpasspackets"} = $1;
$tables{$name}->{"inxpassbytes"} = $2;
next;
}
if (m|Out/Block:\s+\[\s+Packets:\s+([0-9]+)\s+Bytes:\s+([0-9]+)\s+\]$|) {
$tables{$name}->{"outblockpackets"} = $1;
$tables{$name}->{"outblockbytes"} = $2;
next;
}
if (m|Out/Pass:\s+\[\s+Packets:\s+([0-9]+)\s+Bytes:\s+([0-9]+)\s+\]$|) {
$tables{$name}->{"outpasspackets"} = $1;
$tables{$name}->{"outpassbytes"} = $2;
next;
}
if (m|Out/XPass:\s+\[\s+Packets:\s+([0-9]+)\s+Bytes:\s+([0-9]+)\s+\]$|) {
$tables{$name}->{"outxpasspackets"} = $1;
$tables{$name}->{"outxpassbytes"} = $2;
next;
}
}
return %tables;
}
# vim:syntax=perl