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https://github.com/librenms/librenms.git
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321 lines
11 KiB
PHP
321 lines
11 KiB
PHP
<?php
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function poll_sensor($device, $class, $unit)
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{
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global $config, $memcache, $agent_sensors;
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foreach (dbFetchRows("SELECT * FROM `sensors` WHERE `sensor_class` = ? AND `device_id` = ?", array($class, $device['device_id'])) as $sensor)
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{
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echo("Checking (" . $sensor['poller_type'] . ") $class " . $sensor['sensor_descr'] . "... ");
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$sensor_value = '';
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if ($sensor['poller_type'] == "snmp")
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{
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if ($class == "temperature")
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{
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for ($i = 0;$i < 5;$i++) # Try 5 times to get a valid temp reading
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{
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if ($debug) echo("Attempt $i ");
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$sensor_value = trim(str_replace("\"", "", snmp_get($device, $sensor['sensor_oid'], "-OUqnv", "SNMPv2-MIB")));
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if (is_numeric($sensor_value) && $sensor_value != 9999) break; # TME sometimes sends 999.9 when it is right in the middle of an update;
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sleep(1); # Give the TME some time to reset
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}
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} else {
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$sensor_value = trim(str_replace("\"", "", snmp_get($device, $sensor['sensor_oid'], "-OUqnv", "SNMPv2-MIB")));
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}
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} else if ($sensor['poller_type'] == "agent")
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{
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if (isset($agent_sensors))
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{
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$sensor_value = $agent_sensors[$class][$sensor['sensor_type']][$sensor['sensor_index']]['current'];
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}
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else
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{
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echo "no agent data!\n";
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continue;
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}
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} else if ($sensor['poller_type'] == "ipmi")
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{
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echo " already polled.\n"; # ipmi should probably move here from the ipmi poller file (FIXME)
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continue;
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}
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else
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{
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echo "unknown poller type!\n";
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continue;
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}
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if ($sensor_value == -32768) { echo("Invalid (-32768) "); $sensor_value = 0; }
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if ($sensor['sensor_divisor']) { $sensor_value = $sensor_value / $sensor['sensor_divisor']; }
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if ($sensor['sensor_multiplier']) { $sensor_value = $sensor_value * $sensor['sensor_multiplier']; }
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$rrd_file = get_sensor_rrd($device, $sensor);
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if (!is_file($rrd_file))
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{
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rrdtool_create($rrd_file,"--step 300 \
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DS:sensor:GAUGE:600:-20000:20000 ".$config['rrd_rra']);
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}
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echo("$sensor_value $unit\n");
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rrdtool_update($rrd_file,"N:$sensor_value");
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// FIXME also warn when crossing WARN level!!
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if ($sensor['sensor_limit_low'] != "" && $sensor['sensor_current'] > $sensor['sensor_limit_low'] && $sensor_value <= $sensor['sensor_limit_low'] && $sensor['sensor_alert'] == 1)
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{
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$msg = ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is under threshold: " . $sensor_value . "$unit (< " . $sensor['sensor_limit'] . "$unit)";
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notify($device, ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
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echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
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log_event(ucfirst($class) . ' ' . $sensor['sensor_descr'] . " under threshold: " . $sensor_value . " $unit (< " . $sensor['sensor_limit_low'] . " $unit)", $device, $class, $sensor['sensor_id']);
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}
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else if ($sensor['sensor_limit'] != "" && $sensor['sensor_current'] < $sensor['sensor_limit'] && $sensor_value >= $sensor['sensor_limit'] && $sensor['sensor_alert'] == 1)
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{
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$msg = ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'] . " is over threshold: " . $sensor_value . "$unit (> " . $sensor['sensor_limit'] . "$unit)";
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notify($device, ucfirst($class) . " Alarm: " . $device['hostname'] . " " . $sensor['sensor_descr'], $msg);
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echo("Alerting for " . $device['hostname'] . " " . $sensor['sensor_descr'] . "\n");
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log_event(ucfirst($class) . ' ' . $sensor['sensor_descr'] . " above threshold: " . $sensor_value . " $unit (> " . $sensor['sensor_limit'] . " $unit)", $device, $class, $sensor['sensor_id']);
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}
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if ($config['memcached']['enable'])
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{
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$memcache->set('sensor-'.$sensor['sensor_id'].'-value', $sensor_value);
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} else {
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dbUpdate(array('sensor_current' => $sensor_value), 'sensors', '`sensor_class` = ? AND `sensor_id` = ?', array($class, $sensor['sensor_id']));
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}
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}
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}
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function poll_device($device, $options)
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{
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global $config, $device, $polled_devices, $db_stats, $memcache;
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$attribs = get_dev_attribs($device['device_id']);
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$status = 0; unset($array);
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$device_start = utime(); // Start counting device poll time
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echo($device['hostname'] . " ".$device['device_id']." ".$device['os']." ");
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if ($config['os'][$device['os']]['group'])
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{
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$device['os_group'] = $config['os'][$device['os']]['group'];
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echo("(".$device['os_group'].")");
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}
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echo("\n");
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unset($poll_update); unset($poll_update_query); unset($poll_separator);
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$poll_update_array = array();
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$host_rrd = $config['rrd_dir'] . "/" . $device['hostname'];
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if (!is_dir($host_rrd)) { mkdir($host_rrd); echo("Created directory : $host_rrd\n"); }
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$ping_response = isPingable($device['hostname'],$device['device_id']);
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$device['pingable'] = $ping_response['result'];
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$ping_time = $ping_response['last_ping_timetaken'];
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$response = array();
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if ($device['pingable'])
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{
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$device['snmpable'] = isSNMPable($device);
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if ($device['snmpable'])
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{
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$status = "1";
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} else {
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echo("SNMP Unreachable");
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$status = "0";
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$response['status'] = 'snmp';
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}
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} else {
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echo("Unpingable");
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$status = "0";
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$response['status'] = 'icmp';
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}
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if ($device['status'] != $status)
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{
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$poll_update .= $poll_separator . "`status` = '$status'";
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$poll_separator = ", ";
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dbUpdate(array('status' => $status), 'devices', 'device_id=?', array($device['device_id']));
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dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => "Device is " .($status == '1' ? 'up' : 'down')), 'alerts');
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log_event('Device status changed to ' . ($status == '1' ? 'Up' : 'Down'), $device, ($status == '1' ? 'up' : 'down'));
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notify($device, "Device ".($status == '1' ? 'Up' : 'Down').": " . $device['hostname'], "Device ".($status == '1' ? 'up' : 'down').": " . $device['hostname'] . " " . $response['status']);
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}
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if ($status == "1")
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{
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$graphs = array();
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$oldgraphs = array();
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if ($options['m'])
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{
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foreach (explode(",", $options['m']) as $module)
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{
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if (is_file("includes/polling/".$module.".inc.php"))
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{
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include("includes/polling/".$module.".inc.php");
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}
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}
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} else {
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foreach ($config['poller_modules'] as $module => $module_status)
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{
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if ($attribs['poll_'.$module] || ( $module_status && !isset($attribs['poll_'.$module])))
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{
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include('includes/polling/'.$module.'.inc.php');
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} elseif (isset($attribs['poll_'.$module]) && $attribs['poll_'.$module] == "0") {
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echo("Module [ $module ] disabled on host.\n");
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} else {
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echo("Module [ $module ] disabled globally.\n");
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}
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}
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}
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if (!$options['m'])
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{
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// FIXME EVENTLOGGING -- MAKE IT SO WE DO THIS PER-MODULE?
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// This code cycles through the graphs already known in the database and the ones we've defined as being polled here
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// If there any don't match, they're added/deleted from the database.
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// Ideally we should hold graphs for xx days/weeks/polls so that we don't needlessly hide information.
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foreach (dbFetch("SELECT `graph` FROM `device_graphs` WHERE `device_id` = ?", array($device['device_id'])) as $graph)
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{
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if (!isset($graphs[$graph["graph"]]))
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{
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dbDelete('device_graphs', "`device_id` = ? AND `graph` = ?", array($device['device_id'], $graph["graph"]));
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} else {
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$oldgraphs[$graph["graph"]] = TRUE;
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}
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}
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foreach ($graphs as $graph => $value)
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{
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if (!isset($oldgraphs[$graph]))
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{
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echo("+");
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dbInsert(array('device_id' => $device['device_id'], 'graph' => $graph), 'device_graphs');
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}
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echo($graph." ");
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}
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}
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$device_end = utime(); $device_run = $device_end - $device_start; $device_time = substr($device_run, 0, 5);
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// Poller performance rrd
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$poller_rrd = $config['rrd_dir'] . "/" . $device['hostname'] . "/poller-perf.rrd";
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if (!is_file($poller_rrd))
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{
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rrdtool_create ($poller_rrd, "DS:poller:GAUGE:600:0:U ".$config['rrd_rra']);
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}
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if(!empty($device_time))
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{
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rrdtool_update($poller_rrd, "N:$device_time");
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}
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// Ping response rrd
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$ping_rrd = $config['rrd_dir'] . "/" . $device['hostname'] . "/ping-perf.rrd";
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if (!is_file($ping_rrd))
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{
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rrdtool_create ($ping_rrd, "DS:ping:GAUGE:600:0:65535 ".$config['rrd_rra']);
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}
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if(!empty($ping_time))
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{
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rrdtool_update($ping_rrd, "N:$ping_time");
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}
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$update_array['last_polled'] = array('NOW()');
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$update_array['last_polled_timetaken'] = $device_time;
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$update_array['last_ping'] = array('NOW()');
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$update_array['last_ping_timetaken'] = $ping_time;
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#echo("$device_end - $device_start; $device_time $device_run");
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echo("Polled in $device_time seconds\n");
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if ($debug) { echo("Updating " . $device['hostname'] . " - ".print_r($update_array)." \n"); }
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$updated = dbUpdate($update_array, 'devices', '`device_id` = ?', array($device['device_id']));
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if ($updated) { echo("UPDATED!\n"); }
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unset($storage_cache); // Clear cache of hrStorage ** MAYBE FIXME? **
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unset($cache); // Clear cache (unify all things here?)
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}
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}
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function poll_mib_def($device, $mib_name_table, $mib_subdir, $mib_oids, $mib_graphs, &$graphs)
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{
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global $config;
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echo("This is mag_poll_mib_def Processing\n");
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$mib = NULL;
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list($mib,) = explode(":", $mib_name_table, 2);
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//$mib_dirs = mib_dirs($mib_subdir);
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$rrd_file = strtolower(safename($mib)).'.rrd';
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$rrdcreate = '--step 300 ';
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$oidglist = array();
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foreach ($mib_oids as $oid => $param)
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{
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$oidindex = $param[0];
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$oiddsname = $param[1];
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$oiddsdesc = $param[2];
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$oiddstype = $param[3];
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if (strlen($oiddsname) > 19) { $oiddsname = truncate($oiddsname, 19, ''); }
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$rrdcreate .= ' DS:'.$oiddsname.':'.$oiddstype.':600:U:100000000000';
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if ($oidindex != '')
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{
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$fulloid = $oid.'.'.$oidindex;
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} else {
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$fulloid = $oid;
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}
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// Add to oid GET list
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$oidglist[] = $fulloid;
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}
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// Implde for LibreNMS Version
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$oidilist = implode(" ",$oidglist);
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$snmpdata = snmp_get_multi($device, $oidilist, "-OQUs", $mib);
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if (isset($GLOBALS['exec_status']['exitcode']) && $GLOBALS['exec_status']['exitcode'] !== 0)
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{
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print_debug(" ERROR, bad snmp response");
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return FALSE;
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}
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$rrdupdate = 'N';
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foreach ($oidglist as $fulloid)
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{
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list($splitoid, $splitindex) = explode(".", $fulloid, 2);
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if (is_numeric($snmpdata[$splitindex][$splitoid]))
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{
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$rrdupdate .= ':'.$snmpdata[$splitindex][$splitoid];
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} else {
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$rrdupdate .= ':U';
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}
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}
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$rrdfilename = $config['rrd_dir']."/".$device['hostname']."/".$rrd_file;
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if (!is_file($rrdfilename))
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{
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rrdtool_create($rrdfilename, $rrdcreate." ".$config['rrd_rra']);
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}
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rrdtool_update($rrdfilename, $rrdupdate);
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foreach ($mib_graphs as $graphtoenable)
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{
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$graphs[$graphtoenable] = TRUE;
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}
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return TRUE;
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}
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?>
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