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1 | #!/usr/bin/perl -w | |
2 | ||
3 | #Due to memory leak in Debian squeeze (Bug #545519) | |
4 | my $use_rrds = 0; | |
5 | my $rrd_result = 0; | |
6 | ||
7 | if ((@ARGV != 1) && (@ARGV != 2)) { | |
8 | print STDERR "Syntax: ${0} configfile [uid]\n"; | |
9 | exit(1); | |
10 | } | |
11 | ||
12 | use Net::SNMP; | |
13 | use IO::Socket::INET; | |
14 | use IO::Select; | |
15 | use RRDs; | |
16 | use File::Copy; | |
17 | use Data::Dumper; | |
18 | ||
19 | $UPSGRAPH::outdir = ""; | |
20 | $UPSGRAPH::step = 60; | |
21 | $UPSGRAPH::keep = (370*24*60*60)/$UPSGRAPH::step; | |
22 | $UPSGRAPH::hosts = (); | |
23 | ||
24 | do $ARGV[0] or die "can't read config: $!"; | |
25 | ||
26 | my $outdir = $UPSGRAPH::outdir; | |
27 | my $step = $UPSGRAPH::step; | |
28 | my $keep = $UPSGRAPH::keep; | |
29 | my $hosts = $UPSGRAPH::hosts; | |
30 | ||
31 | sub rrd_update(@) { | |
32 | my @args = @_; | |
33 | ||
34 | if ($use_rrds == 1) { | |
35 | RRDs::update(@args); | |
36 | $rrd_result = RRDs::error; | |
37 | } else { | |
38 | $rrd_result = system("rrdtool", "update", @args); | |
39 | } | |
40 | } | |
41 | ||
42 | sub rrd_graph(@) { | |
43 | my @args = @_; | |
44 | my @rrd_out = (); | |
45 | ||
46 | if ($use_rrds == 1) { | |
47 | @rrd_out = RRDs::graph(@args); | |
48 | $rrd_result = RRDs::error; | |
49 | } else { | |
50 | my $rrd_stdout; | |
51 | ||
52 | open(RRDFD, '-|', 'rrdtool', 'graph', @args); | |
53 | while(<RRDFD>) { | |
54 | chomp; | |
55 | $rrd_stdout = $_; | |
56 | } | |
57 | close(RRDFD); | |
58 | $rrd_result = $?; | |
59 | if ($rrd_result == 0) { | |
60 | push @rrd_out, 0; | |
61 | push @rrd_out, split(/x/, $rrd_stdout); | |
62 | } | |
63 | } | |
64 | ||
65 | return @rrd_out; | |
66 | } | |
67 | ||
68 | sub rrdcreate(@) { | |
69 | my $newrrd = shift; | |
70 | my $field = shift; | |
71 | my $vars = shift; | |
72 | my $start = shift; | |
73 | ||
74 | my @cmd = ("${newrrd}", "--step=${step}"); | |
75 | ||
76 | if (defined($start)) { | |
77 | push @cmd, "--start=${start}"; | |
78 | } | |
79 | ||
80 | push @cmd, "DS:${field}:GAUGE:600:" . | |
81 | $vars->{$field}->{'min'} . ":" . | |
82 | $vars->{$field}->{'max'} . " "; | |
83 | ||
84 | push @cmd, "RRA:AVERAGE:0.5:1:${keep}"; | |
85 | ||
86 | RRDs::create(@cmd); | |
87 | if (RRDs::error) { | |
88 | print "Error while creating: " . RRDs::error . "\n"; | |
89 | exit 1; | |
90 | } | |
91 | } | |
92 | ||
93 | sub fetch_snmp(@) { | |
94 | my $address = shift; | |
95 | my $community = shift; | |
96 | my $oid = shift; | |
97 | ||
98 | (my $session, my $error) = Net::SNMP->session(Hostname => $address, | |
99 | Community => $community); | |
100 | ||
101 | if (!$session) { | |
102 | print STDERR "session error: $error"; | |
103 | return undef; | |
104 | } | |
105 | ||
106 | $session->translate(0); | |
107 | ||
108 | my $result = $session->get_request($oid); | |
109 | ||
110 | $session->close; | |
111 | ||
112 | return undef if (!defined($result)); | |
113 | ||
114 | $result->{$oid}; | |
115 | } | |
116 | ||
117 | sub fetch_tcp(@) { | |
118 | my $address = shift; | |
119 | my $port = shift; | |
120 | ||
121 | my $sock = IO::Socket::INET->new(PeerAddr => $address, | |
122 | PeerPort => $port, | |
123 | Proto => 'tcp', | |
124 | Timeout => 1); | |
125 | ||
126 | return undef if (!$sock); | |
127 | ||
128 | my $select = IO::Select->new($sock); | |
129 | ||
130 | my $value = undef; | |
131 | ||
132 | if ($select->can_read(1)) { | |
133 | chomp($value) if (sysread($sock, $value, 4096) > 0); | |
134 | } | |
135 | ||
136 | close($sock); | |
137 | ||
138 | if (!$value) { | |
139 | return undef; | |
140 | } | |
141 | ||
142 | $value=~ s/\s//g; | |
143 | ||
144 | $value; | |
145 | } | |
146 | ||
147 | sub fetch_tcp_multi(@) { | |
148 | my $address = shift; | |
149 | my $port = shift; | |
150 | my $delimiter = shift; | |
151 | my %values; | |
152 | ||
153 | my $sock = IO::Socket::INET->new(PeerAddr => $address, | |
154 | PeerPort => $port, | |
155 | Proto => 'tcp', | |
156 | Timeout => 1); | |
157 | ||
158 | return undef if (!$sock); | |
159 | ||
160 | my $select = IO::Select->new($sock); | |
161 | ||
162 | while($select->can_read(1)) { | |
163 | if (sysread($sock, my $buf, 16384) > 0) { | |
164 | $buf=~s/\r//g; | |
165 | foreach my $line (split(/\n/, $buf)) { | |
166 | (my $key, my $value) = split(/${delimiter}/, $line); | |
167 | $value=~ s/\s//g; | |
168 | $values{$key} = $value; | |
169 | } | |
170 | } else { | |
171 | last; | |
172 | } | |
173 | } | |
174 | ||
175 | close($sock); | |
176 | ||
177 | %values; | |
178 | } | |
179 | ||
180 | if ($> == 0) { | |
181 | if (@ARGV != 2) { | |
182 | print STDERR "Running as root, please provide UID as 2th argument!\n"; | |
183 | exit(1); | |
184 | } | |
185 | ||
186 | print "Running as root, switching to ".$ARGV[1]."\n"; | |
187 | $< = $> = $ARGV[1]; | |
188 | } | |
189 | ||
190 | foreach my $host (@$hosts) { | |
191 | my $rrdfile = $host->{'rrdfile'}; | |
192 | ||
193 | foreach my $var (keys(%{$host->{'vars'}})) { | |
194 | $host->{'vars'}->{$var}->{'min'} = 'U' if (!defined($host->{'vars'}->{$var}->{'min'})); | |
195 | $host->{'vars'}->{$var}->{'max'} = 'U' if (!defined($host->{'vars'}->{$var}->{'max'})); | |
196 | } | |
197 | ||
198 | if (-e "${rrdfile}") { | |
199 | print "Reading old ${rrdfile} to preserve data...\n"; | |
200 | ||
201 | my $rrdinfo = RRDs::info("${rrdfile}"); | |
202 | if (RRDs::error) { | |
203 | print "Error while getting info: " . RRDs::error . "\n"; | |
204 | exit 1; | |
205 | } | |
206 | ||
207 | (my $start, my $ostep, my $names, my $data) = | |
208 | RRDs::fetch("${rrdfile}", | |
209 | "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})), | |
210 | "AVERAGE"); | |
211 | ||
212 | if (RRDs::error) { | |
213 | print "Error while fetching data: " . RRDs::error . "\n"; | |
214 | exit 1; | |
215 | } | |
216 | ||
217 | foreach my $field (@$names) { | |
218 | if (! -e "${rrdfile}.${field}") { | |
219 | rrdcreate("${rrdfile}.${field}", | |
220 | "${field}", | |
221 | $host->{'vars'}, | |
222 | (${start}-${ostep})); | |
223 | } | |
224 | } | |
225 | ||
226 | my $pos = $start; | |
227 | foreach my $line (@$data) { | |
228 | foreach my $field (@$names) { | |
229 | my $val = shift (@$line); | |
230 | $val = 'U' if (!defined($val)); | |
231 | ||
232 | RRDs::update("${rrdfile}.${field}", "${pos}:${val}"); | |
233 | if (RRDs::error) { | |
234 | print "Can't insert data: " . RRDs::error . "\n"; | |
235 | exit 1; | |
236 | } | |
237 | ||
238 | } | |
239 | ||
240 | $pos += $ostep; | |
241 | ||
242 | if ((($pos-$start)/$ostep) == $#$data) { | |
243 | last; | |
244 | } | |
245 | } | |
246 | ||
247 | rename("${rrdfile}", "${rrdfile}.old") or die "Can't rename old file: $!\n"; | |
248 | } | |
249 | ||
250 | foreach my $field (@{$host->{'fields'}}) { | |
251 | if (! -e "${rrdfile}.${field}") { | |
252 | print "Creating ${rrdfile}.${field}...\n"; | |
253 | rrdcreate("${rrdfile}.${field}", | |
254 | "${field}", | |
255 | $host->{'vars'}); | |
256 | } | |
257 | ||
258 | my $rrdinfo = RRDs::info("${rrdfile}.${field}"); | |
259 | if (RRDs::error) { | |
260 | print "Error while getting info: " . RRDs::error . "\n"; | |
261 | exit 1; | |
262 | } | |
263 | ||
264 | if (defined($rrdinfo->{"ds[${field}].min"})) { | |
265 | if ($rrdinfo->{"ds[${field}].min"} ne $host->{'vars'}->{$field}->{'min'}) { | |
266 | RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'}); | |
267 | } | |
268 | } else { | |
269 | if ($host->{'vars'}->{$field}->{'min'} ne 'U') { | |
270 | RRDs::tune("${rrdfile}.${field}","-i",$field.":".$host->{'vars'}->{$field}->{'min'}); | |
271 | } | |
272 | } | |
273 | ||
274 | if (RRDs::error) { | |
275 | print "Error while setting min: " . RRDs::error . "\n"; | |
276 | exit 1; | |
277 | } | |
278 | ||
279 | if (defined($rrdinfo->{"ds[${field}].max"})) { | |
280 | if ($rrdinfo->{"ds[${field}].max"} ne $host->{'vars'}->{$field}->{'max'}) { | |
281 | RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'}); | |
282 | } | |
283 | } else { | |
284 | if ($host->{'vars'}->{$field}->{'max'} ne 'U') { | |
285 | RRDs::tune("${rrdfile}.${field}","-a",$field.":".$host->{'vars'}->{$field}->{'max'}); | |
286 | } | |
287 | } | |
288 | ||
289 | if (RRDs::error) { | |
290 | print "Error while setting max: " . RRDs::error . "\n"; | |
291 | exit 1; | |
292 | } | |
293 | ||
294 | if ($rrdinfo->{'rra[0].rows'} != $keep) { | |
295 | print "Resizing ${rrdfile}.${field} from " . $rrdinfo->{'rra[0].rows'} . | |
296 | " to ${keep} samples.\n"; | |
297 | ||
298 | (my $start, my $ostep, my $names, my $data) = | |
299 | RRDs::fetch("${rrdfile}.${field}", | |
300 | "-s " . (time() - ($rrdinfo->{'rra[0].rows'} * $rrdinfo->{'step'})), | |
301 | "AVERAGE"); | |
302 | ||
303 | if (RRDs::error) { | |
304 | print "Error while fetching data: " . RRDs::error . "\n"; | |
305 | exit 1; | |
306 | } | |
307 | ||
308 | rrdcreate("${rrdfile}.${field}.new", | |
309 | "${field}", | |
310 | $host->{'vars'}, | |
311 | (${start}-${ostep})); | |
312 | ||
313 | print "Preserving data since " . localtime($start) . "\n"; | |
314 | ||
315 | my $pos = $start; | |
316 | foreach my $line (@$data) { | |
317 | my $vline = "${pos}"; | |
318 | ||
319 | foreach my $val (@$line) { | |
320 | $val = 'U' if (!defined($val)); | |
321 | $vline .= ":${val}"; | |
322 | } | |
323 | RRDs::update("${rrdfile}.${field}.new", $vline) or die "Can't insert data\n"; | |
324 | ||
325 | if (RRDs::error) { | |
326 | print "Error while updating: " . RRDs::error . "\n"; | |
327 | exit 1; | |
328 | } | |
329 | $pos += $ostep; | |
330 | ||
331 | if ((($pos-$start)/$ostep) == $#$data) { | |
332 | last; | |
333 | } | |
334 | } | |
335 | ||
336 | rename("${rrdfile}.${field}", "${rrdfile}.${field}.old") or die "Can't rename old file: $!\n"; | |
337 | rename("${rrdfile}.${field}.new", "${rrdfile}.${field}") or die "Can't rename new file: $!\n"; | |
338 | ||
339 | $rrdinfo = RRDs::info("${rrdfile}.${field}"); | |
340 | if (RRDs::error) { | |
341 | print "Error while getting info: " . RRDs::error . "\n"; | |
342 | exit 1; | |
343 | } | |
344 | ||
345 | if ($rrdinfo->{'rra[0].rows'} != $keep) { | |
346 | print "Failed!\n"; | |
347 | exit 1; | |
348 | } | |
349 | } | |
350 | } | |
351 | } | |
352 | ||
353 | my $child = fork(); | |
354 | ||
355 | die "fork failed!" if (!defined($child)); | |
356 | ||
357 | exit 0 if ($child != 0); | |
358 | ||
359 | while(1) { | |
360 | open(HTML, ">${outdir}/index.html.new"); | |
361 | ||
362 | print HTML '<html><head><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>Status</title></head>'; | |
363 | print HTML '<body bgcolor="#ffffff">'; | |
364 | ||
365 | foreach my $host (@$hosts) { | |
366 | print HTML "[<a href=\"#".${host}->{'name'}."\">".${host}->{'name'}."</a>] "; | |
367 | } | |
368 | print HTML "<br>\n"; | |
369 | ||
370 | foreach my $host (@$hosts) { | |
371 | print HTML "<br>\n"; | |
372 | print HTML "<a name=\"".${host}->{'name'}."\"></a>\n"; | |
373 | my $vars = $host->{'vars'}; | |
374 | my $rrdfile = $host->{'rrdfile'}; | |
375 | my $hostname = $host->{'name'}; | |
376 | my %multi_values = (); | |
377 | ||
378 | foreach my $var (@{$host->{'fields'}}) { | |
379 | delete $vars->{$var}->{'value'}; | |
380 | ||
381 | my $result; | |
382 | ||
383 | if ((!defined($vars->{$var}->{'proto'})) || | |
384 | ($vars->{$var}->{'proto'} eq '') || | |
385 | ($vars->{$var}->{'proto'} eq 'snmp')) { | |
386 | $result = fetch_snmp($host->{'address'}, $host->{'community'}, $vars->{$var}->{'oid'}); | |
387 | } elsif ($vars->{$var}->{'proto'} eq 'tcp') { | |
388 | $result = fetch_tcp($host->{'address'}, $vars->{$var}->{'port'}); | |
389 | } elsif ($vars->{$var}->{'proto'} eq 'tcp_multi') { | |
390 | if (defined($multi_values{$vars->{$var}->{'multi_id'}})) { | |
391 | $result = $multi_values{$vars->{$var}->{'multi_id'}} | |
392 | } else { | |
393 | my %values = fetch_tcp_multi($host->{'address'}, $vars->{$var}->{'port'}, $vars->{$var}->{'multi_delimiter'}); | |
394 | @multi_values{keys %values} = values %values; | |
395 | $result = $multi_values{$vars->{$var}->{'multi_id'}}; | |
396 | } | |
397 | } | |
398 | ||
399 | next unless (defined $result); | |
400 | ||
401 | $vars->{$var}->{'value'} = $result; | |
402 | if (defined($vars->{$var}->{'factor'})) { | |
403 | $vars->{$var}->{'value'} *= $vars->{$var}->{'factor'}; | |
404 | } | |
405 | } | |
406 | ||
407 | foreach my $var (@{$host->{'fields'}}) { | |
408 | if (!(defined($vars->{$var}->{'value'}))) { | |
409 | $vars->{$var}->{'value'} = 'U'; | |
410 | } | |
411 | rrd_update("${rrdfile}.${var}", "N:" . $vars->{$var}->{'value'}); | |
412 | } | |
413 | if ($rrd_result) { | |
414 | print "Error while updating: " . $rrd_result . "\n"; | |
415 | } | |
416 | ||
417 | foreach my $var (@{$host->{'fields'}}) { | |
418 | my @graphdef = ('-P', "--lazy", "-t", $hostname." - ".$vars->{$var}->{'name'}, "DEF:${var}=${rrdfile}.${var}:${var}:AVERAGE", "LINE1:${var}#FF0000"); | |
419 | ||
420 | push @graphdef, "VDEF:cur=${var},LAST"; | |
421 | push @graphdef, 'GPRINT:cur:Current\\: <span foreground="#FF0000">%.2lf</span>\\r'; | |
422 | ||
423 | my $mtime; | |
424 | $mtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9]; | |
425 | ||
426 | (my $averages, my $width, my $height) = | |
427 | rrd_graph("${outdir}/${hostname}.${var}.png.work", | |
428 | "-w", "720", @graphdef); | |
429 | ||
430 | pop @graphdef; | |
431 | pop @graphdef; | |
432 | ||
433 | if ($rrd_result) { | |
434 | print "Error while graphing: " . $rrd_result . "\n"; | |
435 | } else { | |
436 | my $newmtime=(stat("${outdir}/${hostname}.${var}.png.work"))[9]; | |
437 | if ((!defined($mtime)) || ($newmtime != $mtime)) { | |
438 | copy("${outdir}/${hostname}.${var}.png.work", "${outdir}/${hostname}.${var}.png.new"); | |
439 | rename("${outdir}/${hostname}.${var}.png.new", "${outdir}/${hostname}.${var}.png"); | |
440 | } | |
441 | } | |
442 | ||
443 | print HTML "<a href=\"${hostname}.${var}.html\"><img src=\"${hostname}.${var}.png\" width=\"${width}\" height=\"${height}\" border=\"0\"></a><br>\n"; | |
444 | ||
445 | open (HTML2, ">${outdir}/${hostname}.${var}.html.new"); | |
446 | print HTML2 '<html><head><meta http-equiv="refresh" content="60"/><meta http-equiv="cache-control" content="no-cache"/><meta http-equiv="pragma" content="no-cache"/><meta http_equiv="expires" content="Sat, 26 Jul 1997 05:00:00 GMT"/><title>' . $vars->{$var}->{'name'} . '</title></head>'; | |
447 | print HTML2 '<body bgcolor="#ffffff">'; | |
448 | ||
449 | push @graphdef, "VDEF:min=${var},MINIMUM"; | |
450 | push @graphdef, "GPRINT:min:Minimum\\: %.2lf"; | |
451 | ||
452 | push @graphdef, "VDEF:avg=${var},AVERAGE"; | |
453 | push @graphdef, "GPRINT:avg:Average\\: %.2lf"; | |
454 | ||
455 | push @graphdef, "VDEF:max=${var},MAXIMUM"; | |
456 | push @graphdef, "GPRINT:max:Maximum\\: %.2lf"; | |
457 | ||
458 | push @graphdef, "VDEF:cur=${var},LAST"; | |
459 | push @graphdef, "GPRINT:cur:Current\\: %.2lf"; | |
460 | ||
461 | $mtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9]; | |
462 | ($averages, $width, $height) = | |
463 | rrd_graph("${outdir}/${hostname}.${var}.long.png.work", | |
464 | "-w", "1008", @graphdef); | |
465 | ||
466 | if ($rrd_result) { | |
467 | print "Error while graphing: " . $rrd_result . "\n"; | |
468 | } else { | |
469 | my $newmtime=(stat("${outdir}/${hostname}.${var}.long.png.work"))[9]; | |
470 | if ((!defined($mtime)) || ($newmtime != $mtime)) { | |
471 | copy("${outdir}/${hostname}.${var}.long.png.work", "${outdir}/${hostname}.${var}.long.png.new"); | |
472 | rename("${outdir}/${hostname}.${var}.long.png.new", "${outdir}/${hostname}.${var}.long.png"); | |
473 | } | |
474 | } | |
475 | ||
476 | print HTML2 "<img src=\"${hostname}.${var}.long.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
477 | ||
478 | $mtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9]; | |
479 | ($averages, $width, $height) = | |
480 | rrd_graph("${outdir}/${hostname}.${var}.week.png.work", | |
481 | "-w", "1008", "-e", "now", "-s", "end-1w", @graphdef); | |
482 | ||
483 | if ($rrd_result) { | |
484 | print "Error while graphing: " . $rrd_result . "\n"; | |
485 | } else { | |
486 | my $newmtime=(stat("${outdir}/${hostname}.${var}.week.png.work"))[9]; | |
487 | if ((!defined($mtime)) || ($newmtime != $mtime)) { | |
488 | copy("${outdir}/${hostname}.${var}.week.png.work", "${outdir}/${hostname}.${var}.week.png.new"); | |
489 | rename("${outdir}/${hostname}.${var}.week.png.new", "${outdir}/${hostname}.${var}.week.png"); | |
490 | } | |
491 | } | |
492 | ||
493 | print HTML2 "<img src=\"${hostname}.${var}.week.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
494 | ||
495 | $mtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9]; | |
496 | ($averages, $width, $height) = | |
497 | rrd_graph("${outdir}/${hostname}.${var}.year.png.work", | |
498 | "-w", "1008", "-e", "now", "-s", "end-1y", @graphdef); | |
499 | ||
500 | if ($rrd_result) { | |
501 | print "Error while graphing: " . $rrd_result . "\n"; | |
502 | } else { | |
503 | my $newmtime=(stat("${outdir}/${hostname}.${var}.year.png.work"))[9]; | |
504 | if ((!defined($mtime)) || ($newmtime != $mtime)) { | |
505 | copy("${outdir}/${hostname}.${var}.year.png.work", "${outdir}/${hostname}.${var}.year.png.new"); | |
506 | rename("${outdir}/${hostname}.${var}.year.png.new", "${outdir}/${hostname}.${var}.year.png"); | |
507 | } | |
508 | } | |
509 | ||
510 | print HTML2 "<img src=\"${hostname}.${var}.year.png\" width=\"${width}\" height=\"${height}\"><br>"; | |
511 | ||
512 | print HTML2 "</body></html>\n"; | |
513 | close(HTML2); | |
514 | rename("${outdir}/${hostname}.${var}.html.new", "${outdir}/${hostname}.${var}.html"); | |
515 | } | |
516 | } | |
517 | ||
518 | print HTML "</body></html>\n"; | |
519 | print HTML "<br>Generated on: " . localtime(time()); | |
520 | print HTML ' by <a href="http://git.zerfleddert.de/cgi-bin/gitweb.cgi/upsgraph">upsgraph</a>.'; | |
521 | ||
522 | close(HTML); | |
523 | ||
524 | rename("${outdir}/index.html.new", "${outdir}/index.html"); | |
525 | ||
526 | sleep(${step}/2); | |
527 | } |