| 5 |
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# http://www.i-scream.org.uk |
| 6 |
|
# |
| 7 |
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# 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. |
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< |
# - pjm2@ukc.ac.uk |
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> |
# a typical Unix/Linux box. |
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# |
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# $Author$ |
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# $Id$ |
| 33 |
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$fqdn |
| 34 |
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$pidfile |
| 35 |
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$retry_wait |
| 36 |
+ |
$ostype |
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+ |
$key |
| 38 |
+ |
@data |
| 39 |
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); |
| 40 |
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|
| 41 |
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if (@ARGV != 2) { |
| 48 |
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$seq_no = 1; |
| 49 |
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$retry_wait = 60; |
| 50 |
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|
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+ |
# work out our platform, if we can. |
| 52 |
+ |
$ostype = `uname -s`; |
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+ |
chomp $ostype; |
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+ |
$ostype = "unknown" if not defined $ostype; |
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+ |
|
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# write our PID to a file |
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< |
$pidfile = "/var/tmp/ihost.pid"; |
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> |
# use home dir by default |
| 58 |
> |
#$pidfile = $ENV{"HOME"}; |
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> |
# or drop it in /var/tmp if we can't find HOME |
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> |
$pidfile = "/var/tmp" if not defined $pidfile; |
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> |
$pidfile .= "/.ihost.pid"; |
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&write_pid(); |
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|
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&tcp_configure(); |
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&send_tcp_heartbeat(); |
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&send_udp_packet(); |
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|
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$last_udp_time = time; |
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else { |
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$delay = $next_tcp; |
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} |
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< |
`sleep $delay`; |
| 89 |
> |
sleep $delay; |
| 90 |
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} |
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|
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# we'll probably never get here... |
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#----------------------------------------------------------------------- |
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sub wait_then_retry() { |
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print "Will retry configuration with filter manager in $retry_wait seconds.\n"; |
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< |
`sleep $retry_wait`; |
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> |
sleep $retry_wait; |
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} |
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|
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|
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|
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print $sock "LASTMODIFIED\n"; |
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$response = <$sock>; |
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< |
if (!$response) { |
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< |
print "The i-scream server did not return anything for the LASTMODIFIED command.\n"; |
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> |
if (!$response || $response eq "ERROR\n") { |
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> |
print "The i-scream server did not provide the LASTMODIFIED value.\n"; |
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close($sock); |
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wait_then_retry(); |
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next; |
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} |
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< |
chop $response; |
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> |
chomp $response; |
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$last_modified = $response; |
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|
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print "Config last modified: ". (scalar localtime $last_modified/1000) . "\n"; |
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|
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print $sock "FILELIST\n"; |
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$response = <$sock>; |
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< |
if (!$response) { |
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> |
if (!$response || $response eq "ERROR\n") { |
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print "The i-scream server did not provide a configuration file list.\n"; |
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close($sock); |
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wait_then_retry(); |
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next; |
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} |
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< |
chop $response; |
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> |
chomp $response; |
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$file_list = $response; |
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|
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print "File list obtained: $file_list\n"; |
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|
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print $sock "FQDN\n"; |
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$response = <$sock>; |
| 171 |
< |
if (!$response) { |
| 171 |
> |
if (!$response || $response eq "ERROR\n") { |
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print "The i-scream server did not tell us our FQDN.\n"; |
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close($sock); |
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wait_then_retry(); |
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next; |
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} |
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< |
chop $response; |
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> |
chomp $response; |
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$fqdn = $response; |
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|
| 180 |
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print "FQDN returned: $fqdn\n"; |
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|
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print $sock "UDPUpdateTime\n"; |
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$response = <$sock>; |
| 184 |
< |
if (!$response) { |
| 184 |
> |
if (!$response || $response eq "ERROR\n") { |
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print "The i-scream server did not give us a UDPUpdateTime.\n"; |
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close($sock); |
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wait_then_retry(); |
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next; |
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} |
| 190 |
< |
chop $response; |
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> |
chomp $response; |
| 191 |
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$udp_update_time = $response; |
| 192 |
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|
| 193 |
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print $sock "TCPUpdateTime\n"; |
| 194 |
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$response = <$sock>; |
| 195 |
< |
if (!$response) { |
| 195 |
> |
if (!$response || $response eq "ERROR\n") { |
| 196 |
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print "The i-scream server did not give us a TCPUpdateTime.\n"; |
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close($sock); |
| 198 |
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wait_then_retry(); |
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next; |
| 200 |
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} |
| 201 |
< |
chop $response; |
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> |
chomp $response; |
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$tcp_update_time = $response; |
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|
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print "UDP packet period: $udp_update_time seconds.\nTCP heartbeat period: $tcp_update_time seconds.\n"; |
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wait_then_retry(); |
| 223 |
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next; |
| 224 |
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} |
| 225 |
< |
chop $response; |
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< |
$response =~ /^(.*);(.*);(.*)/; |
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> |
chomp $response; |
| 226 |
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if ($response eq "ERROR") { |
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print "There are no active configured filters for your host.\n"; |
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close($sock); |
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wait_then_retry(); |
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next; |
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} |
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+ |
$response =~ /^(.*);(.*);(.*)/; |
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($filter_addr, $udp_port, $tcp_port) = ($1, $2, $3); |
| 234 |
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unless (defined($filter_addr) && defined($udp_port) && defined($tcp_port)) { |
| 235 |
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print "Failed: Filter address response from server did not make sense: $response\n"; |
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} |
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|
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|
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– |
|
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– |
|
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#----------------------------------------------------------------------- |
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# send_udp_packet |
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# Sends a UDP packet to an i-scream filter. |
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#----------------------------------------------------------------------- |
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sub send_udp_packet() { |
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|
| 272 |
< |
my(@statgrab) = `./statgrab.pl`; |
| 273 |
< |
my(%packet); |
| 274 |
< |
for (my($i) = 0; $i <= $#statgrab; $i++) { |
| 275 |
< |
$statgrab[$i] =~ /^([^\s]*) (.*)$/; |
| 276 |
< |
$packet{$1} = $2; |
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> |
my($plugins_dir) = "plugins"; |
| 273 |
> |
|
| 274 |
> |
opendir PLUGINS, $plugins_dir; |
| 275 |
> |
my(@plugins) = readdir PLUGINS; |
| 276 |
> |
foreach my $plugin (@plugins) { |
| 277 |
> |
push @data, `$plugins_dir/$plugin $ostype` if -x "$plugins_dir/$plugin" && -f "$plugins_dir/$plugin"; |
| 278 |
|
} |
| 279 |
|
|
| 280 |
+ |
# get some extra data |
| 281 |
|
my($date) = time; |
| 271 |
– |
|
| 272 |
– |
my($disk_info) = "<disk>"; |
| 273 |
– |
my($i) = 0; |
| 274 |
– |
while (defined $packet{"packet.disk.p$i.attributes.mount"}) { |
| 275 |
– |
$disk_info .= "<p$i"; |
| 276 |
– |
$disk_info .= " name=\"" . $packet{"packet.disk.p$i.attributes.name"} . "\""; |
| 277 |
– |
$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 |
– |
$disk_info .= "</disk>"; |
| 285 |
– |
|
| 282 |
|
my($ip); |
| 283 |
|
$ip = inet_ntoa(scalar(gethostbyname(hostname())) || 'localhost') or $ip = 'localhost'; |
| 288 |
– |
|
| 289 |
– |
# Build the XML packet this way, as we can clearly |
| 290 |
– |
# see the structure and contents... I like this ;-) |
| 291 |
– |
# [Note that the server rejects UDP packets that are |
| 292 |
– |
# larger than 8196 bytes] |
| 293 |
– |
my($xml) = <<EOF; |
| 284 |
|
|
| 285 |
< |
<packet seq_no="$seq_no" machine_name="$fqdn" date="$date" type="data" ip="$ip"> |
| 286 |
< |
<load> |
| 287 |
< |
<load1>$packet{"packet.load.load1"}</load1> |
| 288 |
< |
<load5>$packet{"packet.load.load5"}</load5> |
| 289 |
< |
<load15>$packet{"packet.load.load15"}</load15> |
| 290 |
< |
</load> |
| 291 |
< |
<os> |
| 292 |
< |
<name>$packet{"packet.os.name"}</name> |
| 293 |
< |
<release>$packet{"packet.os.release"}</release> |
| 294 |
< |
<platform>$packet{"packet.os.platform"}</platform> |
| 305 |
< |
<sysname>$packet{"packet.os.sysname"}</sysname> |
| 306 |
< |
<version>$packet{"packet.os.version"}</version> |
| 307 |
< |
<uptime>$packet{"packet.os.uptime"}</uptime> |
| 308 |
< |
</os> |
| 309 |
< |
<users> |
| 310 |
< |
<count>$packet{"packet.users.count"}</count> |
| 311 |
< |
<list>$packet{"packet.users.list"}</list> |
| 312 |
< |
</users> |
| 313 |
< |
<processes> |
| 314 |
< |
<total>$packet{"packet.processes.total"}</total> |
| 315 |
< |
<sleeping>$packet{"packet.processes.sleeping"}</sleeping> |
| 316 |
< |
<zombie>$packet{"packet.processes.zombie"}</zombie> |
| 317 |
< |
<stopped>$packet{"packet.processes.stopped"}</stopped> |
| 318 |
< |
<cpu>$packet{"packet.processes.cpu"}</cpu> |
| 319 |
< |
</processes> |
| 320 |
< |
<cpu> |
| 321 |
< |
<idle>$packet{"packet.cpu.idle"}</idle> |
| 322 |
< |
<user>$packet{"packet.cpu.user"}</user> |
| 323 |
< |
<kernel>$packet{"packet.cpu.kernel"}</kernel> |
| 324 |
< |
<iowait>$packet{"packet.cpu.iowait"}</iowait> |
| 325 |
< |
<swap>$packet{"packet.cpu.swap"}</swap> |
| 326 |
< |
</cpu> |
| 327 |
< |
<memory> |
| 328 |
< |
<total>$packet{"packet.memory.total"}</total> |
| 329 |
< |
<free>$packet{"packet.memory.free"}</free> |
| 330 |
< |
</memory> |
| 331 |
< |
<swap> |
| 332 |
< |
<total>$packet{"packet.swap.total"}</total> |
| 333 |
< |
<free>$packet{"packet.swap.free"}</free> |
| 334 |
< |
</swap> |
| 335 |
< |
$disk_info |
| 336 |
< |
</packet> |
| 285 |
> |
# add some extra data to the array |
| 286 |
> |
push(@data, "packet.attributes.seq_no $seq_no"); |
| 287 |
> |
push(@data, "packet.attributes.machine_name $fqdn"); |
| 288 |
> |
push(@data, "packet.attributes.date $date"); |
| 289 |
> |
push(@data, "packet.attributes.type data"); |
| 290 |
> |
push(@data, "packet.attributes.ip $ip"); |
| 291 |
> |
push(@data, "packet.attributes.key $key"); |
| 292 |
> |
|
| 293 |
> |
# sort the data |
| 294 |
> |
@data = sort(grep(!/^$/, grep(/^packet\./, @data))); |
| 295 |
|
|
| 296 |
< |
EOF |
| 296 |
> |
# turn the array into some nice XML |
| 297 |
> |
my($xml) = &make_xml("", ""); |
| 298 |
|
|
| 340 |
– |
# Make the packet smaller by stripping out newlines and leading spaces. |
| 341 |
– |
$xml =~ s/\n\s*//g; |
| 342 |
– |
|
| 299 |
|
my($sock) = new IO::Socket::INET ( |
| 300 |
|
PeerPort => $udp_port, |
| 301 |
|
PeerAddr => $filter_addr, |
| 302 |
|
Proto => 'udp' |
| 303 |
|
) or die "Could not send UDP: $!\n"; |
| 304 |
< |
|
| 304 |
> |
|
| 305 |
|
print $sock $xml or die "Could not send UDP packet: $!\n"; |
| 306 |
|
close($sock); |
| 307 |
|
$seq_no++; |
| 311 |
|
} |
| 312 |
|
|
| 313 |
|
|
| 358 |
– |
|
| 359 |
– |
|
| 314 |
|
#----------------------------------------------------------------------- |
| 315 |
|
# send_tcp_heartbeat |
| 316 |
|
# Establishes a TCP connection to an i-scream filter. |
| 377 |
|
return; |
| 378 |
|
} |
| 379 |
|
|
| 380 |
+ |
print $sock "KEY\n"; |
| 381 |
+ |
$key = <$sock>; |
| 382 |
+ |
|
| 383 |
|
print $sock "ENDHEARTBEAT\n"; |
| 384 |
|
$response = <$sock>; |
| 385 |
|
if (!$response eq "OK\n") { |
| 397 |
|
return; |
| 398 |
|
} |
| 399 |
|
|
| 400 |
+ |
|
| 401 |
|
#----------------------------------------------------------------------- |
| 402 |
|
# write_pid |
| 403 |
|
# Writes the PID (process ID) of this instance to $pidfile. |
| 409 |
|
close PID; |
| 410 |
|
|
| 411 |
|
return; |
| 412 |
+ |
} |
| 413 |
+ |
|
| 414 |
+ |
#----------------------------------------------------------------------- |
| 415 |
+ |
# make_xml |
| 416 |
+ |
# Turns an array of plugins data into an XML string. |
| 417 |
+ |
#----------------------------------------------------------------------- |
| 418 |
+ |
sub make_xml() { |
| 419 |
+ |
my($curlevel, $curline) = @_; |
| 420 |
+ |
my($xmltemp) = ""; my($curtag) = ""; my($attributes) = ""; |
| 421 |
+ |
while(1) { |
| 422 |
+ |
$curline = shift(@data) if $curline eq ""; |
| 423 |
+ |
return $xmltemp if not defined $curline; |
| 424 |
+ |
chomp $curline; |
| 425 |
+ |
# dealing with nest (or attributes) |
| 426 |
+ |
if($curline =~ /^$curlevel([^\.\s]+\.)/) { |
| 427 |
+ |
$curtag=$1; |
| 428 |
+ |
if($curline =~ /^$curlevel$curtag([^\.\s]+)\s+(.*)$/) { |
| 429 |
+ |
$xmltemp .= &make_xml("$curlevel$curtag", $curline); |
| 430 |
+ |
} |
| 431 |
+ |
elsif($curline =~ /^$curlevel$curtag(attributes)\.([^\.\s]+)\s+(.*)$/) { |
| 432 |
+ |
$attributes .= " $2=\"$3\""; |
| 433 |
+ |
} |
| 434 |
+ |
else { |
| 435 |
+ |
$xmltemp .= &make_xml("$curlevel$curtag", $curline); |
| 436 |
+ |
} |
| 437 |
+ |
my($nextline) = $data[0]; chomp $nextline if defined $nextline; |
| 438 |
+ |
$curtag =~ s/(.*)\./$1/; |
| 439 |
+ |
if((defined $nextline) && ($nextline =~ /^$curlevel$curtag\./)) { |
| 440 |
+ |
$curline = ""; |
| 441 |
+ |
} |
| 442 |
+ |
else { |
| 443 |
+ |
$xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq ""; |
| 444 |
+ |
return $xmltemp; |
| 445 |
+ |
} |
| 446 |
+ |
} |
| 447 |
+ |
# dealing with value |
| 448 |
+ |
elsif($curline =~ /^$curlevel([^\.\s]+)\s+(.*)$/) { |
| 449 |
+ |
$curtag=$1; |
| 450 |
+ |
$xmltemp=$2; |
| 451 |
+ |
my($nextline) = $data[0]; chomp $nextline if defined $nextline; |
| 452 |
+ |
if(defined $nextline && ($nextline =~ /^$curlevel$curtag\./ || $nextline =~ /^$curlevel$curtag\s+/)) { |
| 453 |
+ |
$curline = ""; |
| 454 |
+ |
} |
| 455 |
+ |
else { |
| 456 |
+ |
$xmltemp = "<$curtag$attributes>$xmltemp</$curtag>" unless $curtag eq ""; |
| 457 |
+ |
return $xmltemp; |
| 458 |
+ |
} |
| 459 |
+ |
} |
| 460 |
+ |
# dealing with a null value |
| 461 |
+ |
elsif($curline =~ /^$curlevel([^\.\s]+)$/) { |
| 462 |
+ |
# simply adding a space makes the above elsif deal with it :) |
| 463 |
+ |
# just level with an empty tag in the XML |
| 464 |
+ |
$curline .= " "; |
| 465 |
+ |
} |
| 466 |
+ |
# failing all that, skip the line |
| 467 |
+ |
else { |
| 468 |
+ |
$curline = ""; |
| 469 |
+ |
} |
| 470 |
+ |
} |
| 471 |
|
} |
