| 5 |
|
# http://www.i-scream.org.uk |
| 6 |
|
# |
| 7 |
|
# An all-in-one script to act as an i-scream host on |
| 8 |
< |
# a typical Unix/Linux box. You may adapt the data-gathering |
| 9 |
< |
# methods as you see fit. |
| 10 |
< |
# - pjm2@ukc.ac.uk |
| 8 |
> |
# a typical Unix/Linux box. |
| 9 |
|
# |
| 10 |
|
# $Author$ |
| 11 |
|
# $Id$ |
| 33 |
|
$fqdn |
| 34 |
|
$pidfile |
| 35 |
|
$retry_wait |
| 36 |
+ |
$ostype |
| 37 |
+ |
@data |
| 38 |
|
); |
| 39 |
|
|
| 40 |
|
if (@ARGV != 2) { |
| 45 |
|
$filter_manager_port = $ARGV[1]; |
| 46 |
|
|
| 47 |
|
$seq_no = 1; |
| 48 |
< |
$retry_wait = 6; |
| 48 |
> |
$retry_wait = 60; |
| 49 |
|
|
| 50 |
+ |
# work out our platform, if we can. |
| 51 |
+ |
$ostype = `uname -s`; |
| 52 |
+ |
chomp $ostype; |
| 53 |
+ |
$ostype = "unknown" if not defined $ostype; |
| 54 |
+ |
|
| 55 |
|
# write our PID to a file |
| 56 |
< |
$pidfile = "/var/tmp/ihost.pid"; |
| 56 |
> |
# use home dir by default |
| 57 |
> |
#$pidfile = $ENV{"HOME"}; |
| 58 |
> |
# or drop it in /var/tmp if we can't find HOME |
| 59 |
> |
$pidfile = "/var/tmp" if not defined $pidfile; |
| 60 |
> |
$pidfile .= "/.ihost.pid"; |
| 61 |
|
&write_pid(); |
| 62 |
|
|
| 63 |
|
&tcp_configure(); |
| 84 |
|
else { |
| 85 |
|
$delay = $next_tcp; |
| 86 |
|
} |
| 87 |
< |
`sleep $delay`; |
| 87 |
> |
sleep $delay; |
| 88 |
|
} |
| 89 |
|
|
| 90 |
|
# we'll probably never get here... |
| 99 |
|
#----------------------------------------------------------------------- |
| 100 |
|
sub wait_then_retry() { |
| 101 |
|
print "Will retry configuration with filter manager in $retry_wait seconds.\n"; |
| 102 |
< |
`sleep $retry_wait`; |
| 102 |
> |
sleep $retry_wait; |
| 103 |
|
} |
| 104 |
|
|
| 105 |
|
|
| 259 |
|
} |
| 260 |
|
|
| 261 |
|
|
| 253 |
– |
|
| 254 |
– |
|
| 262 |
|
#----------------------------------------------------------------------- |
| 263 |
|
# send_udp_packet |
| 264 |
|
# Sends a UDP packet to an i-scream filter. |
| 267 |
|
#----------------------------------------------------------------------- |
| 268 |
|
sub send_udp_packet() { |
| 269 |
|
|
| 270 |
< |
my(@statgrab) = `./statgrab.pl`; |
| 271 |
< |
my(%packet); |
| 272 |
< |
for (my($i) = 0; $i <= $#statgrab; $i++) { |
| 273 |
< |
$statgrab[$i] =~ /^([^\s]*) (.*)$/; |
| 274 |
< |
$packet{$1} = $2; |
| 270 |
> |
my($plugins_dir) = "plugins"; |
| 271 |
> |
|
| 272 |
> |
opendir PLUGINS, $plugins_dir; |
| 273 |
> |
my(@plugins) = readdir PLUGINS; |
| 274 |
> |
foreach my $plugin (@plugins) { |
| 275 |
> |
push @data, `$plugins_dir/$plugin $ostype` if -x "$plugins_dir/$plugin" && -f "$plugins_dir/$plugin"; |
| 276 |
|
} |
| 277 |
|
|
| 278 |
+ |
# get some extra data |
| 279 |
|
my($date) = time; |
| 280 |
+ |
my($ip); |
| 281 |
+ |
$ip = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost') or $ip = 'localhost'; |
| 282 |
|
|
| 283 |
< |
my($disk_info) = "<disk>"; |
| 284 |
< |
my($i) = 0; |
| 285 |
< |
while (defined $packet{"packet.disk.p$i.attributes.mount"}) { |
| 286 |
< |
$disk_info .= "<p$i"; |
| 287 |
< |
$disk_info .= " name=\"" . $packet{"packet.disk.p$i.attributes.name"} . "\""; |
| 288 |
< |
$disk_info .= " kbytes=\"" . $packet{"packet.disk.p$i.attributes.kbytes"} . "\""; |
| 278 |
< |
$disk_info .= " used=\"" . $packet{"packet.disk.p$i.attributes.used"} . "\""; |
| 279 |
< |
$disk_info .= " avail=\"" . $packet{"packet.disk.p$i.attributes.avail"} . "\""; |
| 280 |
< |
$disk_info .= " mount=\"" . $packet{"packet.disk.p$i.attributes.mount"} . "\""; |
| 281 |
< |
$disk_info .= "></p$i>"; |
| 282 |
< |
++$i; |
| 283 |
< |
} |
| 284 |
< |
$disk_info .= "</disk>"; |
| 285 |
< |
|
| 286 |
< |
my($ip) = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost'); |
| 287 |
< |
|
| 288 |
< |
# Build the XML packet this way, as we can clearly |
| 289 |
< |
# see the structure and contents... I like this ;-) |
| 290 |
< |
# [Note that the server rejects UDP packets that are |
| 291 |
< |
# larger than 8196 bytes] |
| 292 |
< |
my($xml) = <<EOF; |
| 283 |
> |
# add some extra data to the array |
| 284 |
> |
push(@data, "packet.attributes.seq_no $seq_no"); |
| 285 |
> |
push(@data, "packet.attributes.machine_name $fqdn"); |
| 286 |
> |
push(@data, "packet.attributes.date $date"); |
| 287 |
> |
push(@data, "packet.attributes.type data"); |
| 288 |
> |
push(@data, "packet.attributes.ip $ip"); |
| 289 |
|
|
| 290 |
< |
<packet seq_no="$seq_no" machine_name="$fqdn" date="$date" type="data" ip="$ip"> |
| 291 |
< |
<load> |
| 296 |
< |
<load1>$packet{"packet.load.load1"}</load1> |
| 297 |
< |
<load5>$packet{"packet.load.load5"}</load5> |
| 298 |
< |
<load15>$packet{"packet.load.load15"}</load15> |
| 299 |
< |
</load> |
| 300 |
< |
<os> |
| 301 |
< |
<name>$packet{"packet.os.name"}</name> |
| 302 |
< |
<release>$packet{"packet.os.release"}</release> |
| 303 |
< |
<platform>$packet{"packet.os.platform"}</platform> |
| 304 |
< |
<sysname>$packet{"packet.os.sysname"}</sysname> |
| 305 |
< |
<version>$packet{"packet.os.version"}</version> |
| 306 |
< |
<uptime>$packet{"packet.os.uptime"}</uptime> |
| 307 |
< |
</os> |
| 308 |
< |
<users> |
| 309 |
< |
<count>$packet{"packet.users.count"}</count> |
| 310 |
< |
<list>$packet{"packet.users.list"}</list> |
| 311 |
< |
</users> |
| 312 |
< |
<processes> |
| 313 |
< |
<total>$packet{"packet.processes.total"}</total> |
| 314 |
< |
<sleeping>$packet{"packet.processes.sleeping"}</sleeping> |
| 315 |
< |
<zombie>$packet{"packet.processes.zombie"}</zombie> |
| 316 |
< |
<stopped>$packet{"packet.processes.stopped"}</stopped> |
| 317 |
< |
<cpu>$packet{"packet.processes.cpu"}</cpu> |
| 318 |
< |
</processes> |
| 319 |
< |
<cpu> |
| 320 |
< |
<idle>$packet{"packet.cpu.idle"}</idle> |
| 321 |
< |
<user>$packet{"packet.cpu.user"}</user> |
| 322 |
< |
<kernel>$packet{"packet.cpu.kernel"}</kernel> |
| 323 |
< |
<iowait>$packet{"packet.cpu.iowait"}</iowait> |
| 324 |
< |
<swap>$packet{"packet.cpu.swap"}</swap> |
| 325 |
< |
</cpu> |
| 326 |
< |
<memory> |
| 327 |
< |
<total>$packet{"packet.memory.total"}</total> |
| 328 |
< |
<free>$packet{"packet.memory.free"}</free> |
| 329 |
< |
</memory> |
| 330 |
< |
<swap> |
| 331 |
< |
<total>$packet{"packet.swap.total"}</total> |
| 332 |
< |
<free>$packet{"packet.swap.free"}</free> |
| 333 |
< |
</swap> |
| 334 |
< |
$disk_info |
| 335 |
< |
</packet> |
| 290 |
> |
# sort the data |
| 291 |
> |
@data = sort(grep(!/^$/, grep(/^packet\./, @data))); |
| 292 |
|
|
| 293 |
< |
EOF |
| 293 |
> |
# turn the array into some nice XML |
| 294 |
> |
my($xml) = &make_xml("", ""); |
| 295 |
|
|
| 339 |
– |
# Make the packet smaller by stripping out newlines and leading spaces. |
| 340 |
– |
$xml =~ s/\n\s*//g; |
| 341 |
– |
|
| 296 |
|
my($sock) = new IO::Socket::INET ( |
| 297 |
|
PeerPort => $udp_port, |
| 298 |
|
PeerAddr => $filter_addr, |
| 299 |
|
Proto => 'udp' |
| 300 |
|
) or die "Could not send UDP: $!\n"; |
| 301 |
< |
|
| 301 |
> |
|
| 302 |
|
print $sock $xml or die "Could not send UDP packet: $!\n"; |
| 303 |
|
close($sock); |
| 304 |
|
$seq_no++; |
| 308 |
|
} |
| 309 |
|
|
| 310 |
|
|
| 357 |
– |
|
| 358 |
– |
|
| 311 |
|
#----------------------------------------------------------------------- |
| 312 |
|
# send_tcp_heartbeat |
| 313 |
|
# Establishes a TCP connection to an i-scream filter. |
| 314 |
|
# The heartbeat is used as a guaranteed "I'm alive" delivery mechanism. |
| 315 |
+ |
# If we need to reconfigure, then we complete the heartbeat before |
| 316 |
+ |
# doing so. |
| 317 |
|
#----------------------------------------------------------------------- |
| 318 |
|
sub send_tcp_heartbeat() { |
| 319 |
|
|
| 320 |
+ |
my ($doReconfigure) = 0; |
| 321 |
+ |
|
| 322 |
|
my($sock) = new IO::Socket::INET( |
| 323 |
|
PeerAddr => $filter_addr, |
| 324 |
|
PeerPort => $tcp_port, |
| 365 |
|
if ($response eq "ERROR\n") { |
| 366 |
|
close($sock); |
| 367 |
|
print "Server configuration changed. Reconfiguring with filter manager.\n"; |
| 368 |
< |
&tcp_configure(); |
| 413 |
< |
return; |
| 368 |
> |
$doReconfigure = 1; |
| 369 |
|
} |
| 370 |
|
if (!$response eq "OK\n") { |
| 371 |
|
close($sock); |
| 386 |
|
close($sock); |
| 387 |
|
print "^"; |
| 388 |
|
|
| 389 |
+ |
&tcp_configure() if $doReconfigure; |
| 390 |
+ |
|
| 391 |
|
return; |
| 392 |
|
} |
| 393 |
|
|
| 394 |
+ |
|
| 395 |
|
#----------------------------------------------------------------------- |
| 396 |
|
# write_pid |
| 397 |
|
# Writes the PID (process ID) of this instance to $pidfile. |
| 403 |
|
close PID; |
| 404 |
|
|
| 405 |
|
return; |
| 406 |
+ |
} |
| 407 |
+ |
|
| 408 |
+ |
#----------------------------------------------------------------------- |
| 409 |
+ |
# make_xml |
| 410 |
+ |
# Turns an array of plugins data into an XML string. |
| 411 |
+ |
#----------------------------------------------------------------------- |
| 412 |
+ |
sub make_xml() { |
| 413 |
+ |
my($curlevel, $curline) = @_; |
| 414 |
+ |
my($xmltemp) = ""; my($curtag) = ""; my($attributes) = ""; |
| 415 |
+ |
while(1) { |
| 416 |
+ |
$curline = shift(@data) if $curline eq ""; |
| 417 |
+ |
return $xmltemp if not defined $curline; |
| 418 |
+ |
chomp $curline; |
| 419 |
+ |
# dealing with nest (or attributes) |
| 420 |
+ |
if($curline =~ /^$curlevel([^\.\s]+\.)/) { |
| 421 |
+ |
$curtag=$1; |
| 422 |
+ |
if($curline =~ /^$curlevel$curtag([^\.\s]+)\s+(.*)$/) { |
| 423 |
+ |
$xmltemp .= &make_xml("$curlevel$curtag", $curline); |
| 424 |
+ |
} |
| 425 |
+ |
elsif($curline =~ /^$curlevel$curtag(attributes)\.([^\.\s]+)\s+(.*)$/) { |
| 426 |
+ |
$attributes .= " $2=\"$3\""; |
| 427 |
+ |
} |
| 428 |
+ |
else { |
| 429 |
+ |
$xmltemp .= &make_xml("$curlevel$curtag", $curline); |
| 430 |
+ |
} |
| 431 |
+ |
my($nextline) = $data[0]; chomp $nextline if defined $nextline; |
| 432 |
+ |
$curtag =~ s/(.*)\./$1/; |
| 433 |
+ |
if((defined $nextline) && ($nextline =~ /^$curlevel$curtag\./)) { |
| 434 |
+ |
$curline = ""; |
| 435 |
+ |
} |
| 436 |
+ |
else { |
| 437 |
+ |
$xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq ""; |
| 438 |
+ |
return $xmltemp; |
| 439 |
+ |
} |
| 440 |
+ |
} |
| 441 |
+ |
# dealing with value |
| 442 |
+ |
elsif($curline =~ /^$curlevel([^\.\s]+)\s+(.*)$/) { |
| 443 |
+ |
$curtag=$1; |
| 444 |
+ |
$xmltemp=$2; |
| 445 |
+ |
my($nextline) = $data[0]; chomp $nextline if defined $nextline; |
| 446 |
+ |
if(defined $nextline && ($nextline =~ /^$curlevel$curtag\./ || $nextline =~ /^$curlevel$curtag\s+/)) { |
| 447 |
+ |
$curline = ""; |
| 448 |
+ |
} |
| 449 |
+ |
else { |
| 450 |
+ |
$xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq ""; |
| 451 |
+ |
return $xmltemp; |
| 452 |
+ |
} |
| 453 |
+ |
} |
| 454 |
+ |
} |
| 455 |
|
} |
