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contrib-munin/plugins/network/qos_

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#!/usr/bin/perl -w
# -*- perl -*-
# Wildcard plugin to monitor QoS queues.
#
# Requirements:
# - tc program installed and in path
#
# Parameters supported:
#
# config
# autoconf
# suggest
#
# Configurable variables
#
# tc - Override default program
# ignore_queue<n> - Queue with handle <n> not be plotted
# label_name<n> - Queue with handle <n> as defined label
# update_rate - Custom update_rate, to be used with async
# graph_data_size - Custom graph_data_size, to be used with async & custom update_rate
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#
# Magic markers:
#%# family=manual
#%# capabilities=autoconf suggest
use strict;
my $TC = $ENV{'tc'} || 'tc';
if ($ARGV[0] and $ARGV[0] eq 'suggest') {
my $text = `egrep '^ *(eth|wlan|ath|ra)[0-9]+:' /proc/net/dev | cut -f1 -d:`;
print $text;
exit;
}
$0 =~ /qos_(.+)*$/;
my $IFACE = $1;
exit 2 unless defined $IFACE;
if ( exists $ARGV[0] and $ARGV[0] eq 'autoconf' ) {
# Now see if "tc" can run
my $text = `$TC qdisc show dev $IFACE`;
if ($?) {
if ($? == -1) {
print "no (program $TC not found)\n";
} else {
print "no (program $TC died)\n";
}
exit 1;
}
print "yes\n";
exit 0;
}
my %queues;
my $qdisc;
my $queue;
my $handle;
my $one;
my $sent;
my $count;
my $haschild;
#open(TEXT, "$TC -s qdisc show dev $IFACE|");
#while (! eof(TEXT)) {
# ($qdisc, $queue, $handle) = split(" ", <TEXT>);
# if ($qdisc eq "backlog") {
# ($qdisc, $queue, $handle) = split(" ", <TEXT>);
# }
# ($one, $sent) = split(" ", <TEXT>);
# $handle =~ s/://;
# $queues{$handle} = {
# queue => $queue,
# handle => $handle,
# sent => $sent
# };
#}
my @class = `$TC -s class show dev $IFACE`;
my( $name, $id1, $id2, $type, $rate, $parent);
for( my $x = 0; $x < scalar(@class); $x++ ) {
if($class[$x] =~ m/^class/i ) {
( $name, $id1, $id2, $type, $parent) = ( $class[$x] =~ m/^class\s+(\w+)\s+(\d+):(\d+)\s+(\w+)\s([^\s]+)/i );
if($type && $type eq "parent") {
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$x++;
( $rate ) = ( $class[$x] =~ m/Sent\s+(\d+)\s+/i );
$handle = "$name"."${id1}_${id2}";
$queues{$handle} = {
queue => $name,
handle => "${id1}_${id2}",
id => "${id1}:${id2}",
sent => $rate,
parent => $parent
};
}
}
}
if ( exists $ARGV[0] and $ARGV[0] eq 'config' ) {
print "graph_title QoS queue on $IFACE\n";
print "graph_args --base 1000\n";
print "graph_vlabel bits per \${graph_period}\n";
print "graph_category network\n";
print "graph_info This graph shows the QoS queue of the $IFACE network interface.\n";
print "update_rate $ENV{update_rate}\n" if $ENV{update_rate};
print "graph_data_size $ENV{graph_data_size}\n" if $ENV{graph_data_size};
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print "graph_order ";
foreach my $key (sort by_handle keys %queues) {
delete $queues{$key} if $key =~ /sfq/i;
next if $key =~ /sfq/i;
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$haschild = 0;
foreach my $key2 (sort by_handle keys %queues) {
if($queues{$key}->{id} eq $queues{$key2}->{parent}) {
$haschild = 1;
last;
}
}
if($haschild == 1) {
$queues{$key}->{leaf} = 0;
next;
}
$queues{$key}->{leaf} = 1;
print $queues{$key}->{queue},$queues{$key}->{handle}, " ";
}
print "\n";
$count = 0;
foreach my $key (sort by_handle keys %queues) {
if($queues{$key}->{leaf} == 0) { next; }
print $queues{$key}->{queue},$queues{$key}->{handle}, ".label ";
if (exists $ENV{"label_name$queues{$key}->{handle}"}) {
print $ENV{"label_name$queues{$key}->{handle}"};
} else {
print $queues{$key}->{queue},$queues{$key}->{handle};
}
print "\n";
if (exists $ENV{"max"}) {
print $queues{$key}->{queue},$queues{$key}->{handle}, ".max ",$ENV{"max"},"\n";
} elsif (exists $ENV{"max$queues{$key}->{handle}"}) {
print $queues{$key}->{queue},$queues{$key}->{handle}, ".max ",$ENV{"max$queues{$key}->{handle}"},"\n";
}
print $queues{$key}->{queue},$queues{$key}->{handle}, ".type DERIVE\n";
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if($count == 0){
print $queues{$key}->{queue},$queues{$key}->{handle}, ".draw AREA\n";
} else {
print $queues{$key}->{queue},$queues{$key}->{handle}, ".draw STACK\n";
}
print $queues{$key}->{queue},$queues{$key}->{handle}, ".cdef ", $queues{$key}->{queue},$queues{$key}->{handle}, ",8,*\n";
if (exists $ENV{"ignore_queue$queues{$key}->{handle}"}){
print $queues{$key}->{queue},$queues{$key}->{handle}, ".graph no\n" ;
} else {
$count++;
}
}
exit 0;
}
sub by_handle {
return $a cmp $b;
}
foreach my $key (sort by_handle keys %queues) {
next if $key =~ /sfq/i;
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$haschild = 0;
foreach my $key2 (sort by_handle keys %queues) {
if($queues{$key}->{id} eq $queues{$key2}->{parent}) {
$haschild = 1;
last;
}
}
if($haschild == 1) { next; }
print $queues{$key}->{queue},$queues{$key}->{handle}, ".value ",$queues{$key}->{sent}, "\n";
}
#
# vim:syntax=perl