/usr/share/munin/plugins/ntp_states is in munin-node 1.4.6-3ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | #!/usr/bin/perl -w
# -*- perl -*-
=head1 NAME
ntp_states - Plugin to monitor NTP states
=head1 CONFIGURATION
No configuration
This plugin must run as the user "root"
The following configuration parameters are used by this plugin
[ntp_states]
env.lowercase - Lowercase hostnames after lookup
Set the variable env.lowercase to anything lowercase hostnames.
=head2 DEFAULT CONFIGURATION
[ntp_states]
env.lowercase <undefined>
=head1 AUTHORS
Unknown author
=head1 LICENSE
Unknown license
=head1 MAGIC MARKERS
#%# family=manual
#%# capabilities=autoconf
=cut
use strict;
use Net::hostent;
use Socket;
my %stateval = (
' ' => 1, # reject
'x' => 2, # falsetick
'.' => 3, # excess
'-' => 4, # outlyer
'+' => 5, # candidate
'#' => 6, # selected
'*' => 7, # sys.peer
'o' => 8, # pps.peer
);
if ($ARGV[0] and $ARGV[0] eq "autoconf") {
`ntpq -c help >/dev/null 2>/dev/null`;
if ($? eq "0") {
if (`ntpq -c "hostnames no" -c peers | wc -l` > 0) {
print "yes\n";
exit 0;
} else {
print "no (could not read peer list)\n";
exit 0;
}
} else {
print "no (ntpq not found)\n";
exit 0;
}
}
if ($ARGV[0] and $ARGV[0] eq "config") {
print "graph_title NTP states\n";
print "graph_args --base 1000 --vertical-label msec --lower-limit 0\n";
print "graph_category time\n";
foreach (`ntpq -c "hostnames no" -c peers`) {
next unless /^.(\d+\.\d+\.\d+\.\d+)/;
next if /^.224\.0\.1\.1/;
my $addr = $1;
my $host;
if( my $lcid= /^.127\.127\.1\.(\d+)/) {
$lcid = $lcid - 1;
$host = "LOCAL($lcid)";
} else {
$host = gethostbyaddr(inet_aton($addr));
$host = defined $host ? $host->name : $addr;
}
my $name = $host;
$host = lc $host if exists $ENV{"lowercase"};
$host =~ s/[\.\-()]/_/g;
print "$host.label $name\n";
print "$host.draw LINE2\n";
}
exit 0;
}
foreach (`ntpq -c "hostnames no" -c peers`) {
next unless /^(.)(\d+\.\d+\.\d+\.\d+)/;
next if /^.224\.0\.1\.1/;
my $state = $1;
my $addr = $2;
my $host;
if( my $lcid= /^.127\.127\.1\.(\d+)/) {
$lcid = $lcid - 1;
$host = "LOCAL($lcid)"
} else {
$host = gethostbyaddr(inet_aton($addr));
$host = defined $host ? $host->name : $addr;
}
$host = lc $host if exists $ENV{"lowercase"};
$host =~ s/[\.\-()]/_/g;
print "$host.value ", exists $stateval{$state} ? $stateval{$state} : 0, "\n";
}
exit 0;
# vim:syntax=perl
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