ViewVC Help

View File | Revision Log | Show Annotations | Revision Graph | Root Listing

root/i-scream/projects/cms/source/host/ihost-perl/ihost.pl

Comparing projects/cms/source/host/ihost-perl/ihost.pl (file contents):
Revision 1.31 by pjm2, Thu Mar 15 09:46:18 2001 UTC vs.
Revision 1.49 by tdb, Sat May 18 18:15:56 2002 UTC

#	Line 1 | Line 1
1		#!/usr/bin/perl -w
2
3	+	#
4	+	# i-scream central monitoring system
5	+	# Copyright (C) 2000-2002 i-scream
6	+	#
7	+	# This program is free software; you can redistribute it and/or
8	+	# modify it under the terms of the GNU General Public License
9	+	# as published by the Free Software Foundation; either version 2
10	+	# of the License, or (at your option) any later version.
11	+	#
12	+	# This program is distributed in the hope that it will be useful,
13	+	# but WITHOUT ANY WARRANTY; without even the implied warranty of
14	+	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15	+	# GNU General Public License for more details.
16	+	#
17	+	# You should have received a copy of the GNU General Public License
18	+	# along with this program; if not, write to the Free Software
19	+	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20	+	#
21	+
22		# -----------------------------------------------------------
23		# Perl i-scream Host.
24		# http://www.i-scream.org.uk
25		#
26		# An all-in-one script to act as an i-scream host on
27	<	# a typical Unix/Linux box.  You may adapt the data-gathering
9	<	# methods as you see fit.
10	<	#  - pjm2@ukc.ac.uk
27	>	# a typical Unix/Linux box.
28		#
29		# $Author$
30		# $Id$
#	Line 35 | Line 52 | use vars qw (
52		$fqdn
53		$pidfile
54		$retry_wait
55	+	$ostype
56	+	$key
57	+	@data
58		);
59
60		if (@ARGV != 2) {
#	Line 45 | Line 65 | $filter_manager_addr = $ARGV[0];
65		$filter_manager_port = $ARGV[1];
66
67		$seq_no = 1;
68	<	$retry_wait = 600;
68	>	$retry_wait = 60;
69
70	+	# work out our platform, if we can.
71	+	$ostype = `uname -s`;
72	+	chomp $ostype;
73	+	$ostype = "unknown" if not defined $ostype;
74	+
75		# write our PID to a file
76	<	$pidfile = "/var/tmp/ihost.pid";
76	>	# use home dir by default
77	>	#$pidfile = $ENV{"HOME"};
78	>	# or drop it in /var/tmp if we can't find HOME
79	>	$pidfile = "/var/tmp" if not defined $pidfile;
80	>	$pidfile .= "/.ihost.pid";
81		&write_pid();
82
83		&tcp_configure();
84	+	&send_tcp_heartbeat();
85		&send_udp_packet();
86
87		$last_udp_time = time;
#	Line 75 | Line 105 | while (1) {
105		else {
106		$delay = $next_tcp;
107		}
108	<	`sleep $delay`;
108	>	sleep $delay;
109		}
110
111		# we'll probably never get here...
#	Line 90 | Line 120 | exit(0);
120		#-----------------------------------------------------------------------
121		sub wait_then_retry() {
122		print "Will retry configuration with filter manager in $retry_wait seconds.\n";
123	<	`sleep $retry_wait`;
123	>	sleep $retry_wait;
124		}
125
126
#	Line 120 | Line 150 | sub tcp_configure() {
150
151		print $sock "STARTCONFIG\n";
152		$response = <$sock>;
153	<	if (!chop $response eq "OK") {
154	<	print "The i-scream server rejected the STARTCONFIG command.  Terminated.";
153	>	if ($response && !($response eq "OK\n")) {
154	>	print "The i-scream server rejected the STARTCONFIG command.\n";
155		close($sock);
156		wait_then_retry();
157		next;
#	Line 131 | Line 161 | sub tcp_configure() {
161
162		print $sock "LASTMODIFIED\n";
163		$response = <$sock>;
164	<	chop $response;
164	>	if (!$response || $response eq "ERROR\n") {
165	>	print "The i-scream server did not provide the LASTMODIFIED value.\n";
166	>	close($sock);
167	>	wait_then_retry();
168	>	next;
169	>	}
170	>	chomp $response;
171		$last_modified = $response;
172
173		print "Config last modified: ". (scalar localtime $last_modified/1000) . "\n";
174
175		print $sock "FILELIST\n";
176		$response = <$sock>;
177	<	chop $response;
177	>	if (!$response || $response eq "ERROR\n") {
178	>	print "The i-scream server did not provide a configuration file list.\n";
179	>	close($sock);
180	>	wait_then_retry();
181	>	next;
182	>	}
183	>	chomp $response;
184		$file_list = $response;
185
186		print "File list obtained: $file_list\n";
187
188		print $sock "FQDN\n";
189		$response = <$sock>;
190	<	chop $response;
190	>	if (!$response || $response eq "ERROR\n") {
191	>	print "The i-scream server did not tell us our FQDN.\n";
192	>	close($sock);
193	>	wait_then_retry();
194	>	next;
195	>	}
196	>	chomp $response;
197		$fqdn = $response;
198
199		print "FQDN returned: $fqdn\n";
200
201		print $sock "UDPUpdateTime\n";
202		$response = <$sock>;
203	<	chop $response;
203	>	if (!$response || $response eq "ERROR\n") {
204	>	print "The i-scream server did not give us a UDPUpdateTime.\n";
205	>	close($sock);
206	>	wait_then_retry();
207	>	next;
208	>	}
209	>	chomp $response;
210		$udp_update_time = $response;
211
212		print $sock "TCPUpdateTime\n";
213		$response = <$sock>;
214	<	chop $response;
214	>	if (!$response || $response eq "ERROR\n") {
215	>	print "The i-scream server did not give us a TCPUpdateTime.\n";
216	>	close($sock);
217	>	wait_then_retry();
218	>	next;
219	>	}
220	>	chomp $response;
221		$tcp_update_time = $response;
222
223		print "UDP packet period: $udp_update_time seconds.\nTCP heartbeat period: $tcp_update_time seconds.\n";
224
225		print $sock "ENDCONFIG\n";
226		$response = <$sock>;
227	<	chomp $response;
168	<	if (!$response eq "OK") {
227	>	if ($response && !($response eq "OK\n")) {
228		print "ENDCONFIG command to server failed.  Terminated.\n";
229		close($sock);
230		wait_then_retry();
#	Line 176 | Line 235 | sub tcp_configure() {
235
236		print $sock "FILTER\n";
237		$response = <$sock>;
238	<	unless (defined($response)) {
238	>	if (!$response) {
239		print "Failed: Could not get a filter address from the filter manager.\n";
240		close($sock);
241		wait_then_retry();
242		next;
243		}
244	<	chop $response;
186	<	$response =~ /(.*);(.*);(.*)/;
244	>	chomp $response;
245		if ($response eq "ERROR") {
246		print "There are no active configured filters for your host.\n";
247		close($sock);
248		wait_then_retry();
249		next;
250		}
251	+	$response =~ /^(.*);(.*);(.*)/;
252		($filter_addr, $udp_port, $tcp_port) = ($1, $2, $3);
253		unless (defined($filter_addr) && defined($udp_port) && defined($tcp_port)) {
254		print "Failed: Filter address response from server did not make sense: $response\n";
#	Line 202 | Line 261 | sub tcp_configure() {
261
262		print $sock "END\n";
263		$response = <$sock>;
264	<	chop $response;
206	<	if ($response eq "OK") {
264	>	if ($response && ($response eq "OK\n")) {
265		print "Host successfully configured via TCP.\n"
266		}
267		else {
268	<	print "The server failed the host configuration on the END command.";
268	>	print "The server failed the host configuration on the END command.\n";
269		close($sock);
270		wait_then_retry();
271		next;
#	Line 222 | Line 280 | sub tcp_configure() {
280		}
281
282
225	–
226	–
283		#-----------------------------------------------------------------------
284		# send_udp_packet
285		# Sends a UDP packet to an i-scream filter.
#	Line 232 | Line 288 | sub tcp_configure() {
288		#-----------------------------------------------------------------------
289		sub send_udp_packet() {
290
291	<	my(@statgrab) = `./statgrab.pl`;
292	<	my(%packet);
293	<	for (my($i) = 0; $i <= $#statgrab; $i++) {
294	<	$statgrab[$i] =~ /^([^\s]*) (.*)$/;
295	<	$packet{$1} = $2;
291	>	my($plugins_dir) = "plugins";
292	>
293	>	opendir PLUGINS, $plugins_dir;
294	>	my(@plugins) = readdir PLUGINS;
295	>	foreach my $plugin (@plugins) {
296	>	push @data, `$plugins_dir/$plugin $ostype` if -x "$plugins_dir/$plugin" && -f "$plugins_dir/$plugin";
297		}
298
299	+	# get some extra data
300		my($date) = time;
301	+	my($ip);
302	+	$ip = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost') or $ip = 'localhost';
303
304	<	my($disk_info) = "<disk>";
305	<	my($i) = 0;
306	<	while (defined $packet{"packet.disk.p$i.attributes.mount"}) {
307	<	$disk_info .= "<p$i";
308	<	$disk_info .= " name=\"" . $packet{"packet.disk.p$i.attributes.name"} . "\"";
309	<	$disk_info .= " kbytes=\"" . $packet{"packet.disk.p$i.attributes.kbytes"} . "\"";
310	<	$disk_info .= " used=\"" . $packet{"packet.disk.p$i.attributes.used"} . "\"";
251	<	$disk_info .= " avail=\"" . $packet{"packet.disk.p$i.attributes.avail"} . "\"";
252	<	$disk_info .= " mount=\"" . $packet{"packet.disk.p$i.attributes.mount"} . "\"";
253	<	$disk_info .= "></p$i>";
254	<	++$i;
255	<	}
256	<	$disk_info .= "</disk>";
257	<
258	<	my($ip) = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost');
259	<
260	<	# Build the XML packet this way, as we can clearly
261	<	# see the structure and contents... I like this ;-)
262	<	# [Note that the server rejects UDP packets that are
263	<	# larger than 8196 bytes]
264	<	my($xml) = <<EOF;
304	>	# add some extra data to the array
305	>	push(@data, "packet.attributes.seq_no $seq_no");
306	>	push(@data, "packet.attributes.machine_name $fqdn");
307	>	push(@data, "packet.attributes.date $date");
308	>	push(@data, "packet.attributes.type data");
309	>	push(@data, "packet.attributes.ip $ip");
310	>	push(@data, "packet.attributes.key $key");
311
312	<	<packet seq_no="$seq_no" machine_name="$fqdn" date="$date" type="data" ip="$ip">
313	<	<load>
268	<	<load1>$packet{"packet.load.load1"}</load1>
269	<	<load5>$packet{"packet.load.load5"}</load5>
270	<	<load15>$packet{"packet.load.load15"}</load15>
271	<	</load>
272	<	<os>
273	<	<name>$packet{"packet.os.name"}</name>
274	<	<release>$packet{"packet.os.release"}</release>
275	<	<platform>$packet{"packet.os.platform"}</platform>
276	<	<sysname>$packet{"packet.os.sysname"}</sysname>
277	<	<version>$packet{"packet.os.version"}</version>
278	<	<uptime>$packet{"packet.os.uptime"}</uptime>
279	<	</os>
280	<	<users>
281	<	<count>$packet{"packet.users.count"}</count>
282	<	<list>$packet{"packet.users.list"}</list>
283	<	</users>
284	<	<processes>
285	<	<total>$packet{"packet.processes.total"}</total>
286	<	<sleeping>$packet{"packet.processes.sleeping"}</sleeping>
287	<	<zombie>$packet{"packet.processes.zombie"}</zombie>
288	<	<stopped>$packet{"packet.processes.stopped"}</stopped>
289	<	<cpu>$packet{"packet.processes.cpu"}</cpu>
290	<	</processes>
291	<	<cpu>
292	<	<idle>$packet{"packet.cpu.idle"}</idle>
293	<	<user>$packet{"packet.cpu.user"}</user>
294	<	<kernel>$packet{"packet.cpu.kernel"}</kernel>
295	<	<iowait>$packet{"packet.cpu.iowait"}</iowait>
296	<	<swap>$packet{"packet.cpu.swap"}</swap>
297	<	</cpu>
298	<	<memory>
299	<	<total>$packet{"packet.memory.total"}</total>
300	<	<free>$packet{"packet.memory.free"}</free>
301	<	</memory>
302	<	<swap>
303	<	<total>$packet{"packet.swap.total"}</total>
304	<	<free>$packet{"packet.swap.free"}</free>
305	<	</swap>
306	<	$disk_info
307	<	</packet>
312	>	# sort the data
313	>	@data = sort(grep(!/^$/, grep(/^packet\./, @data)));
314
315	<	EOF
315	>	# turn the array into some nice XML
316	>	my($xml) = &make_xml("", "");
317
311	–	# Make the packet smaller by stripping out newlines and leading spaces.
312	–	$xml =~ s/\n\s*//g;
313	–
318		my($sock) = new IO::Socket::INET (
319		PeerPort => $udp_port,
320		PeerAddr => $filter_addr,
321		Proto => 'udp'
322		) or die "Could not send UDP: $!\n";
323	<
323	>
324		print $sock $xml or die "Could not send UDP packet: $!\n";
325		close($sock);
326		$seq_no++;
#	Line 326 | Line 330 | EOF
330		}
331
332
329	–
330	–
333		#-----------------------------------------------------------------------
334		# send_tcp_heartbeat
335		# Establishes a TCP connection to an i-scream filter.
336		# The heartbeat is used as a guaranteed "I'm alive" delivery mechanism.
337	+	# If we need to reconfigure, then we complete the heartbeat before
338	+	# doing so.
339		#-----------------------------------------------------------------------
340		sub send_tcp_heartbeat() {
341
342	+	my ($doReconfigure) = 0;
343	+
344		my($sock) = new IO::Socket::INET(
345		PeerAddr => $filter_addr,
346		PeerPort => $tcp_port,
#	Line 351 | Line 357 | sub send_tcp_heartbeat() {
357
358		print $sock "HEARTBEAT\n";
359		$response = <$sock>;
360	<	return if (!defined $response);
355	<	chop $response;
356	<	if (!$response eq "OK") {
360	>	if (!$response eq "OK\n") {
361		close($sock);
362		print "Server gave wrong response to HEARTBEAT: $response\n";
363		&tcp_configure();
#	Line 362 | Line 366 | sub send_tcp_heartbeat() {
366
367		print $sock "CONFIG\n";
368		$response = <$sock>;
369	<	return if (!defined $response);
366	<	chop $response;
367	<	if (!$response eq "OK") {
369	>	if (!$response eq "OK\n") {
370		close($sock);
371		print "Server gave wrong response to CONFIG: $response\n";
372		&tcp_configure();
#	Line 373 | Line 375 | sub send_tcp_heartbeat() {
375
376		print $sock "$file_list\n";
377		$response = <$sock>;
378	<	return if (!defined $response);
377	<	chop $response;
378	<	if (!$response eq "OK") {
378	>	if (!$response eq "OK\n") {
379		close($sock);
380		print "Server gave wrong response to file list: $response\n";
381		&tcp_configure();
#	Line 384 | Line 384 | sub send_tcp_heartbeat() {
384
385		print $sock "$last_modified\n";
386		$response = <$sock>;
387	<	return if (!defined $response);
388	<	chop $response;
389	<	if ($response eq "ERROR") {
387	>	if ($response eq "ERROR\n") {
388		close($sock);
389		print "Server configuration changed.  Reconfiguring with filter manager.\n";
390	<	&tcp_configure();
393	<	return;
390	>	$doReconfigure = 1;
391		}
392	<	if (!$response eq "OK") {
392	>	if (!$response eq "OK\n") {
393		close($sock);
394		print "Server gave wrong response to HEARTBEAT: $response\n";
395		&tcp_configure();
396		return;
397		}
398
399	+	print $sock "KEY\n";
400	+	$key = <$sock>;
401	+
402		print $sock "ENDHEARTBEAT\n";
403		$response = <$sock>;
404	<	return if (!defined $response);
405	<	chop $response;
406	<	if (!$response eq "OK") {
404	>	if (!$response eq "OK\n") {
405		close($sock);
406		print "Server gave wrong response to ENDHEARTBEAT: $response\n";
407		&tcp_configure();
#	Line 413 | Line 411 | sub send_tcp_heartbeat() {
411		close($sock);
412		print "^";
413
414	+	&tcp_configure() if $doReconfigure;
415	+
416		return;
417		}
418
419	+
420		#-----------------------------------------------------------------------
421		# write_pid
422		# Writes the PID (process ID) of this instance to $pidfile.
#	Line 427 | Line 428 | sub write_pid() {
428		close PID;
429
430		return;
431	+	}
432	+
433	+	#-----------------------------------------------------------------------
434	+	# make_xml
435	+	# Turns an array of plugins data into an XML string.
436	+	#-----------------------------------------------------------------------
437	+	sub make_xml() {
438	+	my($curlevel, $curline) = @_;
439	+	my($xmltemp) = ""; my($curtag) = ""; my($attributes) = "";
440	+	while(1) {
441	+	$curline = shift(@data) if $curline eq "";
442	+	return $xmltemp if not defined $curline;
443	+	chomp $curline;
444	+	# dealing with nest (or attributes)
445	+	if($curline =~ /^$curlevel([^\.\s]+\.)/) {
446	+	$curtag=$1;
447	+	if($curline =~ /^$curlevel$curtag([^\.\s]+)\s+(.*)$/) {
448	+	$xmltemp .= &make_xml("$curlevel$curtag", $curline);
449	+	}
450	+	elsif($curline =~ /^$curlevel$curtag(attributes)\.([^\.\s]+)\s+(.*)$/) {
451	+	$attributes .= " $2=\"$3\"";
452	+	}
453	+	else {
454	+	$xmltemp .= &make_xml("$curlevel$curtag", $curline);
455	+	}
456	+	my($nextline) = $data[0]; chomp $nextline if defined $nextline;
457	+	$curtag =~ s/(.*)\./$1/;
458	+	if((defined $nextline) && ($nextline =~ /^$curlevel$curtag\./)) {
459	+	$curline = "";
460	+	}
461	+	else {
462	+	$xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq "";
463	+	return $xmltemp;
464	+	}
465	+	}
466	+	# dealing with value
467	+	elsif($curline =~ /^$curlevel([^\.\s]+)\s+(.*)$/) {
468	+	$curtag=$1;
469	+	$xmltemp=$2;
470	+	my($nextline) = $data[0]; chomp $nextline if defined $nextline;
471	+	if(defined $nextline && ($nextline =~ /^$curlevel$curtag\./ || $nextline =~ /^$curlevel$curtag\s+/)) {
472	+	$curline = "";
473	+	}
474	+	else {
475	+	$xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq "";
476	+	return $xmltemp;
477	+	}
478	+	}
479	+	# dealing with a null value
480	+	elsif($curline =~ /^$curlevel([^\.\s]+)$/) {
481	+	# simply adding a space makes the above elsif deal with it :)
482	+	# just level with an empty tag in the XML
483	+	$curline .= " ";
484	+	}
485	+	# failing all that, skip the line
486	+	else {
487	+	$curline = "";
488	+	}
489	+	}
490		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines