152 lines
3.7 KiB
Perl
Executable File
152 lines
3.7 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# Munin plugin to monitor Tor routers
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#
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# Author: Ævar Arnfjörð Bjarmason <avarab@gmail.com>, based on a plugin by Ge van Geldorp <ge@gse.nl>
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#
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# Parameters understood:
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#
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# host - Change which host to graph (default localhost)
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# port - Change which port to connect to (default 9051)
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# password - Plain-text control channel password (see torrc
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# HashedControlPassword parameter)
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# cookiefile - Name of the file containing the control channel cookie
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# (see torrc CookieAuthentication parameter)
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#
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# Using HashedControlPassword authentication has the problem that you must
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# include the plain-text password in the munin config file. To have any
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# effect, that file shouldn't be world-readable.
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# If you're using CookieAuthentication, you should run this plugin as a user
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# which has read access to the tor datafiles. Also note that bugs in versions
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# upto and including 0.1.1.20 prevent CookieAuthentication from working.
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#
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# Usage: place in /etc/munin/node.d/ (or link it there using ln -s)
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#
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# Parameters understood:
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# config (required)
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# autoconf (optional - used by munin-config)
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#
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#
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# Magic markers - optional - used by installation scripts and
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# munin-config:
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#
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#%# family=contrib
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#%# capabilities=autoconf
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use strict;
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use IO::Socket::INET;
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# Config
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our $address = $ENV{host} || "localhost"; # Default: localhost
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our $port = $ENV{port} || 9051; # Default: 9051
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# Don't edit below this line
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sub Authenticate
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{
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my ($socket) = @_;
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my $authline = "AUTHENTICATE";
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if (defined($ENV{cookiefile})) {
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if (open(COOKIE, "<$ENV{cookiefile}")) {
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binmode COOKIE;
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my $cookie;
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$authline .= " ";
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while (read(COOKIE, $cookie, 32)) {
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foreach my $byte (unpack "C*", $cookie) {
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$authline .= sprintf "%02x", $byte;
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}
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}
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close COOKIE;
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}
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} elsif (defined($ENV{password})) {
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$authline .= ' "' . $ENV{password} . '"';
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}
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print $socket "$authline\r\n";
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my $replyline = <$socket>;
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if (substr($replyline, 0, 1) != '2') {
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$replyline =~ s/\s*$//;
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return "Failed to authenticate: $replyline";
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}
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return;
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}
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if ($ARGV[0] and $ARGV[0] eq "autoconf") {
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# Try to connect to the daemon
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my $socket = IO::Socket::INET->new("$address:$port")
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or my $failed = 1;
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if ($failed) {
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print "no (failed to connect to $address port $port)\n";
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exit 1;
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}
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my $msg = Authenticate($socket);
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if (defined($msg)) {
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print $socket "QUIT\r\n";
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close($socket);
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print "no ($msg)\n";
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exit 1;
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}
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print $socket "QUIT\r\n";
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close($socket);
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print "yes\n";
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exit 0;
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}
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if ($ARGV[0] and $ARGV[0] eq "config") {
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print "graph_title Routers\n";
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print "graph_args -l 0\n";
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print "graph_vlabel routers\n";
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print "graph_category Tor\n";
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print "graph_info This graph shows the number of known Tor ORs.\n";
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print "ors.label routers\n";
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print "ors.type GAUGE\n";
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print "ors.info The number of known Tor ORs (onion routers)\n";
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exit 0;
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}
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my $socket = IO::Socket::INET->new("$address:$port")
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or die("Couldn't connect to $address port $port: $!");
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my $msg = Authenticate($socket);
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if (defined($msg)) {
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print $socket "QUIT\r\n";
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close($socket);
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die "$msg\n";
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}
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print $socket "GETINFO ns/all\r\n";
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my $replyline = <$socket>;
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if (substr($replyline, 0, 1) != '2') {
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print $socket "QUIT\r\n";
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close($socket);
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$replyline =~ s/\s*$//;
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die "Failed to get orconn-status info: $replyline\n";
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}
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my $count;
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while (! (($replyline = <$socket>) =~ /^\.\s*$/)) {
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my @reply = split(/\s+/, $replyline);
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$count++ if $reply[0] eq 'r';
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}
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$replyline = <$socket>;
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if (substr($replyline, 0, 1) != '2') {
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print $socket "QUIT\r\n";
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close($socket);
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$replyline =~ s/\s*$//;
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die "Failed to authenticate: $replyline\n";
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}
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print $socket "QUIT\r\n";
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close($socket);
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print "ors.value $count\n";
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exit 0;
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# vim:syntax=perl
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