mirror of https://github.com/mikaku/Monitorix.git
498 lines
14 KiB
Perl
498 lines
14 KiB
Perl
#
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# Monitorix - A lightweight system monitoring tool.
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#
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# Copyright (C) 2005-2013 by Jordi Sanfeliu <jordi@fibranet.cat>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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package port;
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use strict;
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use warnings;
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use Monitorix;
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use RRDs;
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use POSIX qw(strftime);
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use Exporter 'import';
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our @EXPORT = qw(port_init port_update port_cgi);
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sub port_init {
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my $myself = (caller(0))[3];
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my ($package, $config, $debug) = @_;
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my $rrd = $config->{base_lib} . $package . ".rrd";
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my $port = $config->{port};
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my $info;
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my @ds;
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my @tmp;
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my $n;
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if(-e $rrd) {
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$info = RRDs::info($rrd);
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for my $key (keys %$info) {
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if(index($key, 'ds[') == 0) {
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if(index($key, '.type') != -1) {
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push(@ds, substr($key, 3, index($key, ']') - 3));
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}
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}
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}
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if(scalar(@ds) / 2 != $port->{max}) {
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logger("Detected size mismatch between 'max = $port->{max}' and $rrd (" . scalar(@ds) / 2 . "). Resizing it accordingly. All historic data will be lost. Backup file created.");
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rename($rrd, "$rrd.bak");
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}
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}
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if(!(-e $rrd)) {
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logger("Creating '$rrd' file.");
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for($n = 0; $n < $port->{max}; $n++) {
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push(@tmp, "DS:port" . $n . "_in:GAUGE:120:0:U");
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push(@tmp, "DS:port" . $n . "_out:GAUGE:120:0:U");
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}
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eval {
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RRDs::create($rrd,
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"--step=60",
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@tmp,
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"RRA:AVERAGE:0.5:1:1440",
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"RRA:AVERAGE:0.5:30:336",
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"RRA:AVERAGE:0.5:60:744",
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"RRA:AVERAGE:0.5:1440:365",
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"RRA:MIN:0.5:1:1440",
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"RRA:MIN:0.5:30:336",
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"RRA:MIN:0.5:60:744",
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"RRA:MIN:0.5:1440:365",
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"RRA:MAX:0.5:1:1440",
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"RRA:MAX:0.5:30:336",
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"RRA:MAX:0.5:60:744",
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"RRA:MAX:0.5:1440:365",
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"RRA:LAST:0.5:1:1440",
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"RRA:LAST:0.5:30:336",
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"RRA:LAST:0.5:60:744",
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"RRA:LAST:0.5:1440:365",
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);
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};
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my $err = RRDs::error;
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if($@ || $err) {
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logger("$@") unless !$@;
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if($err) {
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logger("ERROR: while creating $rrd: $err");
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if($err eq "RRDs::error") {
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logger("... is the RRDtool Perl package installed?");
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}
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}
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return;
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}
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}
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if($config->{os} eq "Linux") {
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my $num;
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my @line;
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# set the iptables rules for each defined port
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my @pl = split(',', $port->{list});
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for($n = 0; $n < $port->{max}; $n++) {
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$pl[$n] = trim($pl[$n]);
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if($pl[$n]) {
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my $p = lc((split(',', $port->{desc}->{$pl[$n]}))[1]) || "all";
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system("iptables -N monitorix_IN_$n 2>/dev/null");
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system("iptables -I INPUT -p $p --dport $pl[$n] -j monitorix_IN_$n -c 0 0");
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system("iptables -N monitorix_OUT_$n 2>/dev/null");
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system("iptables -I OUTPUT -p $p --sport $pl[$n] -j monitorix_OUT_$n -c 0 0");
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}
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}
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}
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if(grep {$_ eq $config->{os}} ("FreeBSD", "OpenBSD", "NetBSD")) {
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# set the ipfw rules for each defined port
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my @pl = split(',', $port->{list});
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for($n = 0; $n < $port->{max}; $n++) {
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$pl[$n] = trim($pl[$n]);
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if($pl[$n]) {
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my $p = lc((split(',', $port->{desc}->{$pl[$n]}))[1]) || "all";
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system("ipfw -q add $port->{rule} count $p from me $pl[$n] to any");
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system("ipfw -q add $port->{rule} count $p from any to me $pl[$n]");
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}
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}
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}
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$config->{port_hist_in} = ();
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$config->{port_hist_out} = ();
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push(@{$config->{func_update}}, $package);
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logger("$myself: Ok") if $debug;
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}
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sub port_update {
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my $myself = (caller(0))[3];
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my ($package, $config, $debug) = @_;
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my $rrd = $config->{base_lib} . $package . ".rrd";
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my $port = $config->{port};
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my @in;
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my @out;
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my $n;
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my $rrdata = "N";
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if($config->{os} eq "Linux") {
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open(IN, "iptables -nxvL INPUT |");
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while(<IN>) {
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for($n = 0; $n < $port->{max}; $n++) {
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$in[$n] = 0 unless $in[$n];
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if(/ monitorix_IN_$n /) {
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my (undef, $bytes) = split(' ', $_);
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chomp($bytes);
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$in[$n] = $bytes - ($config->{port_hist_in}[$n] || 0);
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$in[$n] = 0 unless $in[$n] != $bytes;
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$config->{port_hist_in}[$n] = $bytes;
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$in[$n] /= 60;
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}
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}
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}
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close(IN);
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open(IN, "iptables -nxvL OUTPUT |");
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while(<IN>) {
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for($n = 0; $n < $port->{max}; $n++) {
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$out[$n] = 0 unless $out[$n];
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if(/ monitorix_OUT_$n /) {
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my (undef, $bytes) = split(' ', $_);
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chomp($bytes);
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$out[$n] = $bytes - ($config->{port_hist_out}[$n] || 0);
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$out[$n] = 0 unless $out[$n] != $bytes;
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$config->{port_hist_out}[$n] = $bytes;
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$out[$n] /= 60;
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}
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}
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}
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close(IN);
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}
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if(grep {$_ eq $config->{os}} ("FreeBSD", "OpenBSD", "NetBSD")) {
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my @pl = split(',', $port->{list});
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open(IN, "ipfw show $port->{rule} 2>/dev/null |");
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while(<IN>) {
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for($n = 0; $n < $port->{max}; $n++) {
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$in[$n] = 0 unless $in[$n];
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$pl[$n] = trim($pl[$n]);
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if(/ from any to me dst-port $pl[$n]$/) {
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my (undef, undef, $bytes) = split(' ', $_);
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chomp($bytes);
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$in[$n] = $bytes;
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}
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$out[$n] = 0 unless $out[$n];
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if(/ from me $pl[$n] to any$/) {
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my (undef, undef, $bytes) = split(' ', $_);
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chomp($bytes);
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$out[$n] = $bytes;
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}
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}
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}
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close(IN);
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}
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for($n = 0; $n < $port->{max}; $n++) {
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$rrdata .= ":$in[$n]:$out[$n]";
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}
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RRDs::update($rrd, $rrdata);
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logger("$myself: $rrdata") if $debug;
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my $err = RRDs::error;
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logger("ERROR: while updating $rrd: $err") if $err;
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}
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sub port_cgi {
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my ($package, $config, $cgi) = @_;
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my $port = $config->{port};
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my $tf = $cgi->{tf};
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my $colors = $cgi->{colors};
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my $graph = $cgi->{graph};
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my $silent = $cgi->{silent};
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my $u = "";
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my $width;
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my $height;
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my @riglim;
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my @warning;
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my @PNG;
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my @PNGz;
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my $name;
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my @tmp;
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my @tmpz;
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my @CDEF;
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my $T = "B";
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my $vlabel = "bytes/s";
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my $n;
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my $n2;
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my $str;
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my $err;
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my $rrd = $config->{base_lib} . $package . ".rrd";
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my $title = $config->{graph_title}->{$package};
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my $PNG_DIR = $config->{base_dir} . "/" . $config->{imgs_dir};
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$title = !$silent ? $title : "";
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if(lc($config->{netstats_in_bps}) eq "y") {
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$T = "b";
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$vlabel = "bits/s";
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}
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# text mode
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#
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if(lc($config->{iface_mode}) eq "text") {
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if($title) {
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main::graph_header($title, 2);
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print(" <tr>\n");
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print(" <td bgcolor='$colors->{title_bg_color}'>\n");
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}
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my (undef, undef, undef, $data) = RRDs::fetch("$rrd",
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"--start=-$tf->{nwhen}$tf->{twhen}",
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"AVERAGE",
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"-r $tf->{res}");
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$err = RRDs::error;
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print("ERROR: while fetching $rrd: $err\n") if $err;
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my $line1;
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my $line2;
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print(" <pre style='font-size: 12px; color: $colors->{fg_color}';>\n");
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print(" ");
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for($n = 0; $n < $port->{max} && $n < scalar(my @pl = split(',', $port->{list})); $n++) {
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$pl[$n] = trim($pl[$n]);
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my $pn = trim((split(',', $port->{desc}->{$pl[$n]}))[0]);
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printf(" %-5s %-8s", $pl[$n], $pn);
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$line1 .= " K$T/s_I K$T/s_O";
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$line2 .= "-----------------";
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}
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print("\n");
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print("Time$line1\n");
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print("----$line2 \n");
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my $line;
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my @row;
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my $time;
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my $n2;
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my $from;
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my $to;
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for($n = 0, $time = $tf->{tb}; $n < ($tf->{tb} * $tf->{ts}); $n++) {
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$line = @$data[$n];
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$time = $time - (1 / $tf->{ts});
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printf(" %2d$tf->{tc} ", $time);
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for($n2 = 0; $n2 < $port->{max} && $n2 < scalar(my @pl = split(',', $port->{list})); $n2++) {
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$from = $n2 * 2;
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$to = $from + 1;
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my ($kin, $kout) = @$line[$from..$to];
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$kin /= 1024;
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$kout /= 1024;
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if(lc($config->{netstats_in_bps}) eq "y") {
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$kin *= 8;
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$kout *= 8;
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}
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@row = ($kin, $kout);
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printf(" %6d %6d ", @row);
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}
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print("\n");
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}
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print(" </pre>\n");
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if($title) {
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print(" </td>\n");
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print(" </tr>\n");
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main::graph_footer();
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}
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print(" <br>\n");
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return;
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}
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# graph mode
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#
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if($silent eq "yes" || $silent eq "imagetag") {
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$colors->{fg_color} = "#000000"; # visible color for text mode
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$u = "_";
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}
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if($silent eq "imagetagbig") {
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$colors->{fg_color} = "#000000"; # visible color for text mode
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$u = "";
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}
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for($n = 0; $n < $port->{max}; $n++) {
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$str = $u . $package . $n . "." . $tf->{when} . ".png";
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push(@PNG, $str);
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unlink("$PNG_DIR" . $str);
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if(lc($config->{enable_zoom}) eq "y") {
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$str = $u . $package . $n . "z." . $tf->{when} . ".png";
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push(@PNGz, $str);
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unlink("$PNG_DIR" . $str);
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}
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}
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$n = 0;
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while($n < $port->{max} && $n < scalar(my @pl = split(',', $port->{list}))) {
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if($title) {
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if($n == 0) {
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main::graph_header($title, $port->{graphs_per_row});
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}
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print(" <tr>\n");
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}
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for($n2 = 0; $n2 < $port->{graphs_per_row}; $n2++) {
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last unless ($n < $port->{max} && $n < scalar(@pl));
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if($title) {
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print(" <td bgcolor='" . $colors->{title_bg_color} . "'>\n");
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}
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my $pnum;
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$pl[$n] = trim($pl[$n]);
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my $pn = trim((split(',', $port->{desc}->{$pl[$n]}))[0]);
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my $pp = trim((split(',', $port->{desc}->{$pl[$n]}))[1]);
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my $prig = trim((split(',', $port->{desc}->{$pl[$n]}))[2]);
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my $plim = trim((split(',', $port->{desc}->{$pl[$n]}))[3]);
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undef(@riglim);
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if(trim($prig) eq 1) {
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push(@riglim, "--upper-limit=" . trim($plim));
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} else {
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if(trim($prig) eq 2) {
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push(@riglim, "--upper-limit=" . trim($plim));
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push(@riglim, "--rigid");
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}
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}
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undef(@warning);
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if($config->{os} eq "Linux") {
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open(IN, "netstat -nl --$pp |");
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while(<IN>) {
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(undef, undef, undef, $pnum) = split(' ', $_);
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chomp($pnum);
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$pnum =~ s/.*://;
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if($pnum eq $pl[$n]) {
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last;
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}
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}
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close(IN);
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}
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if(grep {$_ eq $config->{os}} ("FreeBSD", "OpenBSD")) {
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open(IN, "netstat -anl -p $pp |");
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while(<IN>) {
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my $stat;
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(undef, undef, undef, $pnum, undef, $stat) = split(' ', $_);
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chomp($stat);
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if($stat eq "LISTEN") {
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chomp($pnum);
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($pnum) = ($pnum =~ m/^.*?(\.\d+$)/);
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$pnum =~ s/\.//;
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if($pnum eq $pl[$n]) {
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last;
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}
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}
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}
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close(IN);
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}
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if($pnum ne $pl[$n]) {
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push(@warning, $colors->{warning_color});
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}
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$name = substr($pn, 0, 15);
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undef(@tmp);
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undef(@tmpz);
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undef(@CDEF);
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push(@tmp, "AREA:B_in#44EE44:Input");
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push(@tmp, "AREA:B_out#4444EE:Output");
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push(@tmp, "AREA:B_out#4444EE:");
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push(@tmp, "AREA:B_in#44EE44:");
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push(@tmp, "LINE1:B_out#0000EE");
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push(@tmp, "LINE1:B_in#00EE00");
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push(@tmpz, "AREA:B_in#44EE44:Input");
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push(@tmpz, "AREA:B_out#4444EE:Output");
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push(@tmpz, "AREA:B_out#4444EE:");
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push(@tmpz, "AREA:B_in#44EE44:");
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push(@tmpz, "LINE1:B_out#0000EE");
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push(@tmpz, "LINE1:B_in#00EE00");
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if(lc($config->{netstats_in_bps}) eq "y") {
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push(@CDEF, "CDEF:B_in=in,8,*");
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push(@CDEF, "CDEF:B_out=out,8,*");
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} else {
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push(@CDEF, "CDEF:B_in=in");
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push(@CDEF, "CDEF:B_out=out");
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}
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($width, $height) = split('x', $config->{graph_size}->{mini});
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if($silent =~ /imagetag/) {
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($width, $height) = split('x', $config->{graph_size}->{remote}) if $silent eq "imagetag";
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($width, $height) = split('x', $config->{graph_size}->{main}) if $silent eq "imagetagbig";
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push(@tmp, "COMMENT: \\n");
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push(@tmp, "COMMENT: \\n");
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push(@tmp, "COMMENT: \\n");
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}
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RRDs::graph("$PNG_DIR" . "$PNG[$n]",
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"--title=$name traffic ($tf->{nwhen}$tf->{twhen})",
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"--start=-$tf->{nwhen}$tf->{twhen}",
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"--imgformat=PNG",
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"--vertical-label=$vlabel",
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"--width=$width",
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"--height=$height",
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@riglim,
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"--lower-limit=0",
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@{$cgi->{version12}},
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@{$cgi->{version12_small}},
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@{$colors->{graph_colors}},
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@warning,
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"DEF:in=$rrd:port" . $n . "_in:AVERAGE",
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"DEF:out=$rrd:port" . $n . "_out:AVERAGE",
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@CDEF,
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@tmp);
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$err = RRDs::error;
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print("ERROR: while graphing $PNG_DIR" . "$PNG[$n]: $err\n") if $err;
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if(lc($config->{enable_zoom}) eq "y") {
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($width, $height) = split('x', $config->{graph_size}->{zoom});
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RRDs::graph("$PNG_DIR" . "$PNGz[$n]",
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"--title=$name traffic ($tf->{nwhen}$tf->{twhen})",
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"--start=-$tf->{nwhen}$tf->{twhen}",
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"--imgformat=PNG",
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"--vertical-label=$vlabel",
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"--width=$width",
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"--height=$height",
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@riglim,
|
|
"--lower-limit=0",
|
|
@{$cgi->{version12}},
|
|
@{$cgi->{version12_small}},
|
|
@{$colors->{graph_colors}},
|
|
@warning,
|
|
"DEF:in=$rrd:port" . $n . "_in:AVERAGE",
|
|
"DEF:out=$rrd:port" . $n . "_out:AVERAGE",
|
|
@CDEF,
|
|
@tmpz);
|
|
$err = RRDs::error;
|
|
print("ERROR: while graphing $PNG_DIR" . "$PNGz[$n]: $err\n") if $err;
|
|
}
|
|
if($title || ($silent =~ /imagetag/ && $graph =~ /port$n/)) {
|
|
if(lc($config->{enable_zoom}) eq "y") {
|
|
if(lc($config->{disable_javascript_void}) eq "y") {
|
|
print(" <a href=\"" . $config->{url} . $config->{imgs_dir} . $PNGz[$n] . "\"><img src='" . $config->{url} . $config->{imgs_dir} . $PNG[$n] . "' border='0'></a>\n");
|
|
}
|
|
else {
|
|
print(" <a href=\"javascript:void(window.open('" . $config->{url} . $config->{imgs_dir} . $PNGz[$n] . "','','width=" . ($width + 115) . ",height=" . ($height + 100) . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . $config->{imgs_dir} . $PNG[$n] . "' border='0'></a>\n");
|
|
}
|
|
} else {
|
|
print(" <img src='" . $config->{url} . $config->{imgs_dir} . $PNG[$n] . "'>\n");
|
|
}
|
|
}
|
|
if($title) {
|
|
print(" </td>\n");
|
|
}
|
|
$n++;
|
|
}
|
|
if($title) {
|
|
print(" </tr>\n");
|
|
}
|
|
}
|
|
if($title) {
|
|
main::graph_footer();
|
|
}
|
|
print(" <br>\n");
|
|
return;
|
|
}
|
|
|
|
1;
|