PHP isSNMPable函数代码示例

function discover_new_device_ip($host)
{
    global $config;
    if (match_network($config['autodiscovery']['ip_nets'], $host)) {
        if (isPingable($host)) {
            echo "Pingable ";
            foreach ($config['snmp']['community'] as $community) {
                $device = deviceArray($host, $community, "v2c", "161", "udp", NULL);
                print_message("Trying community {$community} ...");
                if (isSNMPable($device)) {
                    echo "SNMPable ";
                    $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                    if (dbFetchCell("SELECT COUNT(device_id) FROM devices WHERE sysName = ?", array($snmphost)) == '0') {
                        $device_id = createHost($snmphost, $community, "v2c", "161", "udp");
                        $device = device_by_id_cache($device_id, 1);
                        array_push($GLOBALS['devices'], $device);
                        return $device_id;
                    } else {
                        echo "Already have host with sysName {$snmphost}\n";
                    }
                }
            }
        }
    }
}

/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package    observium
 * @subpackage discovery
 * @subpackage functions
 * @author     Adam Armstrong <adama@memetic.org>
 * @copyright  (C) 2006-2014 Adam Armstrong
 *
 */
function discover_new_device_ip($host, $source = 'xdp', $protocol = NULL, $device = NULL, $port = NULL)
{
    global $config;
    print_debug("Discovering possible new device on {$host}");
    if ($config['autodiscovery'][$source]) {
        if (match_network($config['autodiscovery']['ip_nets'], $host)) {
            $db = dbFetchRow("SELECT * FROM ipv4_addresses AS A, ports AS P, devices AS D WHERE A.ipv4_address = ? AND P.port_id = A.port_id AND D.device_id = P.device_id", array($host));
            if (is_array($db)) {
                print_debug("Already have {$host} on " . $db['hostname']);
            } else {
                if (isPingable($host)) {
                    echo "Pingable ";
                    foreach ($config['snmp']['community'] as $community) {
                        $newdevice = deviceArray($host, $community, "v2c", "161", "udp", NULL);
                        print_message("Trying community {$community} ...");
                        if (isSNMPable($newdevice)) {
                            echo "SNMPable ";
                            $snmphost = snmp_get($newdevice, "sysName.0", "-Oqv", "SNMPv2-MIB");
                            if (dbFetchCell("SELECT COUNT(device_id) FROM devices WHERE sysName = ?", array($snmphost)) == '0') {
                                $device_id = createHost($snmphost, $community, "v2c", "161", "udp");
                                $newdevice = device_by_id_cache($device_id, 1);
                                array_push($GLOBALS['devices'], $newdevice);
                                if (!$protocol) {
                                    $protocol = strtoupper($source);
                                }
                                if ($port) {
                                    humanize_port($port);
                                    log_event("Device autodiscovered through {$protocol} on " . $device['hostname'] . " (port " . $port['label'] . ")", $remote_device_id, 'interface', $port['port_id']);
                                } else {
                                    log_event("Device autodiscovered through {$protocol} on " . $device['hostname'], $remote_device_id);
                                }
                                return $device_id;
                            } else {
                                echo "Already have host with sysName {$snmphost}\n";
                            }
                        }
                    }
                } else {
                    print_debug("IP not pingable.");
                }
            }
        } else {
            print_debug("Host does not match configured nets");
        }
    } else {
        print_debug("Source {$source} disabled for autodiscovery!");
    }
}

function addHost($host, $snmpver, $port = '161', $transport = 'udp', $quiet = '0', $poller_group = '0', $force_add = '0')
{
    global $config;
    list($hostshort) = explode(".", $host);
    // Test Database Exists
    if (dbFetchCell("SELECT COUNT(*) FROM `devices` WHERE `hostname` = ?", array($host)) == '0') {
        if ($config['addhost_alwayscheckip'] === TRUE) {
            $ip = gethostbyname($host);
        } else {
            $ip = $host;
        }
        if (ip_exists($ip) === false) {
            // Test reachability
            if ($force_add == 1 || isPingable($host)) {
                if (empty($snmpver)) {
                    // Try SNMPv2c
                    $snmpver = 'v2c';
                    $ret = addHost($host, $snmpver, $port, $transport, $quiet, $poller_group, $force_add);
                    if (!$ret) {
                        //Try SNMPv3
                        $snmpver = 'v3';
                        $ret = addHost($host, $snmpver, $port, $transport, $quiet, $poller_group, $force_add);
                        if (!$ret) {
                            // Try SNMPv1
                            $snmpver = 'v1';
                            return addHost($host, $snmpver, $port, $transport, $quiet, $poller_group, $force_add);
                        } else {
                            return $ret;
                        }
                    } else {
                        return $ret;
                    }
                }
                if ($snmpver === "v3") {
                    // Try each set of parameters from config
                    foreach ($config['snmp']['v3'] as $v3) {
                        $device = deviceArray($host, NULL, $snmpver, $port, $transport, $v3);
                        if ($quiet == '0') {
                            print_message("Trying v3 parameters " . $v3['authname'] . "/" . $v3['authlevel'] . " ... ");
                        }
                        if ($force_add == 1 || isSNMPable($device)) {
                            $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                            if (empty($snmphost) or $snmphost == $host || ($hostshort = $host)) {
                                $device_id = createHost($host, NULL, $snmpver, $port, $transport, $v3, $poller_group);
                                return $device_id;
                            } else {
                                if ($quiet == '0') {
                                    print_error("Given hostname does not match SNMP-read hostname ({$snmphost})!");
                                }
                            }
                        } else {
                            if ($quiet == '0') {
                                print_error("No reply on credentials " . $v3['authname'] . "/" . $v3['authlevel'] . " using {$snmpver}");
                            }
                        }
                    }
                } elseif ($snmpver === "v2c" or $snmpver === "v1") {
                    // try each community from config
                    foreach ($config['snmp']['community'] as $community) {
                        $device = deviceArray($host, $community, $snmpver, $port, $transport, NULL);
                        if ($quiet == '0') {
                            print_message("Trying community {$community} ...");
                        }
                        if ($force_add == 1 || isSNMPable($device)) {
                            $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                            if (empty($snmphost) || $snmphost && ($snmphost == $host || ($hostshort = $host))) {
                                $device_id = createHost($host, $community, $snmpver, $port, $transport, array(), $poller_group);
                                return $device_id;
                            } else {
                                if ($quiet == '0') {
                                    print_error("Given hostname does not match SNMP-read hostname ({$snmphost})!");
                                }
                            }
                        } else {
                            if ($quiet == '0') {
                                print_error("No reply on community {$community} using {$snmpver}");
                            }
                        }
                    }
                } else {
                    if ($quiet == '0') {
                        print_error("Unsupported SNMP Version \"{$snmpver}\".");
                    }
                }
                if (!$device_id) {
                    // Failed SNMP
                    if ($quiet == '0') {
                        print_error("Could not reach {$host} with given SNMP community using {$snmpver}");
                    }
                }
            } else {
                // failed Reachability
                if ($quiet == '0') {
                    print_error("Could not ping {$host}");
                }
            }
        } else {
            if ($quiet == 0) {
                print_error("Already have host with this IP {$host}");
            }
//.........这里部分代码省略.........

 $v3 = array('authlevel' => mres($_POST['authlevel']), 'authname' => mres($_POST['authname']), 'authpass' => mres($_POST['authpass']), 'authalgo' => mres($_POST['authalgo']), 'cryptopass' => mres($_POST['cryptopass']), 'cryptoalgo' => mres($_POST['cryptoalgo']));
 // FIXME needs better feedback
 $update = array('community' => $community, 'snmpver' => $snmpver, 'port' => $port, 'transport' => $transport, 'poller_group' => $poller_group, 'port_association_mode' => $port_assoc_mode);
 if ($_POST['timeout']) {
     $update['timeout'] = $timeout;
 } else {
     $update['timeout'] = array('NULL');
 }
 if ($_POST['retries']) {
     $update['retries'] = $retries;
 } else {
     $update['retries'] = array('NULL');
 }
 $update = array_merge($update, $v3);
 $device_tmp = deviceArray($device['hostname'], $community, $snmpver, $port, $transport, $v3, $port_assoc_mode);
 if (isSNMPable($device_tmp)) {
     $rows_updated = dbUpdate($update, 'devices', '`device_id` = ?', array($device['device_id']));
     $max_repeaters_set = false;
     if (is_numeric($max_repeaters) && $max_repeaters != 0) {
         set_dev_attrib($device, 'snmp_max_repeaters', $max_repeaters);
         $max_repeaters_set = true;
     } else {
         del_dev_attrib($device, 'snmp_max_repeaters');
         $max_repeaters_set = true;
     }
     if ($rows_updated > 0) {
         $update_message = $rows_updated . ' Device record updated.';
         $updated = 1;
     } else {
         if ($rows_updated = '-1') {
             if ($max_repeaters_set === true) {

function poll_device($device, $options)
{
    global $config, $device, $polled_devices, $db_stats, $memcache;
    $attribs = get_dev_attribs($device['device_id']);
    $status = 0;
    unset($array);
    $device_start = utime();
    // Start counting device poll time
    echo $device['hostname'] . ' ' . $device['device_id'] . ' ' . $device['os'] . ' ';
    if ($config['os'][$device['os']]['group']) {
        $device['os_group'] = $config['os'][$device['os']]['group'];
        echo '(' . $device['os_group'] . ')';
    }
    echo "\n";
    unset($poll_update);
    unset($poll_update_query);
    unset($poll_separator);
    $poll_update_array = array();
    $update_array = array();
    $host_rrd = $config['rrd_dir'] . '/' . $device['hostname'];
    if (!is_dir($host_rrd)) {
        mkdir($host_rrd);
        echo "Created directory : {$host_rrd}\n";
    }
    $address_family = snmpTransportToAddressFamily($device['transport']);
    $ping_response = isPingable($device['hostname'], $address_family, $attribs);
    $device_perf = $ping_response['db'];
    $device_perf['device_id'] = $device['device_id'];
    $device_perf['timestamp'] = array('NOW()');
    if (can_ping_device($attribs) === true && is_array($device_perf)) {
        dbInsert($device_perf, 'device_perf');
    }
    $device['pingable'] = $ping_response['result'];
    $ping_time = $ping_response['last_ping_timetaken'];
    $response = array();
    $status_reason = '';
    if ($device['pingable']) {
        $device['snmpable'] = isSNMPable($device);
        if ($device['snmpable']) {
            $status = '1';
            $response['status_reason'] = '';
        } else {
            echo 'SNMP Unreachable';
            $status = '0';
            $response['status_reason'] = 'snmp';
        }
    } else {
        echo 'Unpingable';
        $status = '0';
        $response['status_reason'] = 'icmp';
    }
    if ($device['status'] != $status) {
        $poll_update .= $poll_separator . "`status` = '{$status}'";
        $poll_separator = ', ';
        dbUpdate(array('status' => $status, 'status_reason' => $response['status_reason']), 'devices', 'device_id=?', array($device['device_id']));
        dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => 'Device is ' . ($status == '1' ? 'up' : 'down')), 'alerts');
        log_event('Device status changed to ' . ($status == '1' ? 'Up' : 'Down'), $device, $status == '1' ? 'up' : 'down');
    }
    if ($status == '1') {
        $graphs = array();
        $oldgraphs = array();
        if ($options['m']) {
            foreach (explode(',', $options['m']) as $module) {
                if (is_file('includes/polling/' . $module . '.inc.php')) {
                    include 'includes/polling/' . $module . '.inc.php';
                }
            }
        } else {
            foreach ($config['poller_modules'] as $module => $module_status) {
                if ($attribs['poll_' . $module] || $module_status && !isset($attribs['poll_' . $module])) {
                    // TODO per-module polling stats
                    include 'includes/polling/' . $module . '.inc.php';
                } else {
                    if (isset($attribs['poll_' . $module]) && $attribs['poll_' . $module] == '0') {
                        echo "Module [ {$module} ] disabled on host.\n";
                    } else {
                        echo "Module [ {$module} ] disabled globally.\n";
                    }
                }
            }
        }
        //end if
        if (!$options['m']) {
            // FIXME EVENTLOGGING -- MAKE IT SO WE DO THIS PER-MODULE?
            // This code cycles through the graphs already known in the database and the ones we've defined as being polled here
            // If there any don't match, they're added/deleted from the database.
            // Ideally we should hold graphs for xx days/weeks/polls so that we don't needlessly hide information.
            foreach (dbFetch('SELECT `graph` FROM `device_graphs` WHERE `device_id` = ?', array($device['device_id'])) as $graph) {
                if (isset($graphs[$graph['graph']])) {
                    $oldgraphs[$graph['graph']] = true;
                } else {
                    dbDelete('device_graphs', '`device_id` = ? AND `graph` = ?', array($device['device_id'], $graph['graph']));
                }
            }
            foreach ($graphs as $graph => $value) {
                if (!isset($oldgraphs[$graph])) {
                    echo '+';
                    dbInsert(array('device_id' => $device['device_id'], 'graph' => $graph), 'device_graphs');
                }
                echo $graph . ' ';
//.........这里部分代码省略.........

function detect_device_snmpauth($hostname, $snmp_port = 161, $snmp_transport = 'udp', $detect_ip_version = FALSE)
{
    global $config;
    // Additional checks for IP version
    if ($detect_ip_version) {
        $ip_version = get_ip_version($hostname);
        if (!$ip_version) {
            $ip = gethostbyname6($hostname);
            $ip_version = get_ip_version($ip);
        }
        // Detect snmp transport
        if (stripos($snmp_transport, 'tcp') !== FALSE) {
            $snmp_transport = $ip_version == 4 ? 'tcp' : 'tcp6';
        } else {
            $snmp_transport = $ip_version == 4 ? 'udp' : 'udp6';
        }
    }
    // Detect snmp port
    if (!is_numeric($snmp_port) || $snmp_port < 1 || $snmp_port > 65535) {
        $snmp_port = 161;
    } else {
        $snmp_port = (int) $snmp_port;
    }
    // Here set default snmp version order
    $i = 1;
    $snmp_version_order = array();
    foreach (array('v2c', 'v3', 'v1') as $tmp_version) {
        if ($config['snmp']['version'] == $tmp_version) {
            $snmp_version_order[0] = $tmp_version;
        } else {
            $snmp_version_order[$i] = $tmp_version;
        }
        $i++;
    }
    ksort($snmp_version_order);
    foreach ($snmp_version_order as $snmp_version) {
        if ($snmp_version === 'v3') {
            // Try each set of parameters from config
            foreach ($config['snmp']['v3'] as $snmp_v3) {
                $device = build_initial_device_array($hostname, NULL, $snmp_version, $snmp_port, $snmp_transport, $snmp_v3);
                print_message("Trying v3 parameters " . $device['snmp_authname'] . "/" . $device['snmp_authlevel'] . " ... ");
                if (isSNMPable($device)) {
                    return $device;
                } else {
                    print_warning("证书无应答 " . $device['snmp_authname'] . "/" . $device['snmp_authlevel'] . " using {$snmp_version}.");
                }
            }
        } else {
            // if ($snmp_version === "v2c" || $snmp_version === "v1")
            // Try each community from config
            foreach ($config['snmp']['community'] as $snmp_community) {
                $device = build_initial_device_array($hostname, $snmp_community, $snmp_version, $snmp_port, $snmp_transport);
                print_message("尝试 {$snmp_version} community {$snmp_community} ...");
                if (isSNMPable($device)) {
                    return $device;
                } else {
                    print_warning("Community无应答 {$snmp_community} 使用 {$snmp_version}.");
                }
            }
        }
    }
    return FALSE;
}

function poll_device($device, $options)
{
    global $config, $device, $polled_devices, $memcache;
    $attribs = get_dev_attribs($device['device_id']);
    $device['snmp_max_repeaters'] = $attribs['snmp_max_repeaters'];
    $device['snmp_max_oid'] = $attribs['snmp_max_oid'];
    $status = 0;
    unset($array);
    $device_start = microtime(true);
    // Start counting device poll time
    echo 'Hostname: ' . $device['hostname'] . PHP_EOL;
    echo 'Device ID: ' . $device['device_id'] . PHP_EOL;
    echo 'OS: ' . $device['os'];
    $ip = dnslookup($device);
    if (!empty($ip) && $ip != inet6_ntop($device['ip'])) {
        log_event('Device IP changed to ' . $ip, $device, 'system');
        $db_ip = inet_pton($ip);
        dbUpdate(array('ip' => $db_ip), 'devices', 'device_id=?', array($device['device_id']));
    }
    if ($config['os'][$device['os']]['group']) {
        $device['os_group'] = $config['os'][$device['os']]['group'];
        echo ' (' . $device['os_group'] . ')';
    }
    echo PHP_EOL . PHP_EOL;
    unset($poll_update);
    unset($poll_update_query);
    unset($poll_separator);
    $poll_update_array = array();
    $update_array = array();
    $host_rrd = $config['rrd_dir'] . '/' . $device['hostname'];
    if ($config['norrd'] !== true && !is_dir($host_rrd)) {
        mkdir($host_rrd);
        echo "Created directory : {$host_rrd}\n";
    }
    $address_family = snmpTransportToAddressFamily($device['transport']);
    $ping_response = isPingable($device['hostname'], $address_family, $attribs);
    $device_perf = $ping_response['db'];
    $device_perf['device_id'] = $device['device_id'];
    $device_perf['timestamp'] = array('NOW()');
    if (can_ping_device($attribs) === true && is_array($device_perf)) {
        dbInsert($device_perf, 'device_perf');
    }
    $device['pingable'] = $ping_response['result'];
    $ping_time = $ping_response['last_ping_timetaken'];
    $response = array();
    $status_reason = '';
    if ($device['pingable']) {
        $device['snmpable'] = isSNMPable($device);
        if ($device['snmpable']) {
            $status = '1';
            $response['status_reason'] = '';
        } else {
            echo 'SNMP Unreachable';
            $status = '0';
            $response['status_reason'] = 'snmp';
        }
    } else {
        echo 'Unpingable';
        $status = '0';
        $response['status_reason'] = 'icmp';
    }
    if ($device['status'] != $status) {
        $poll_update .= $poll_separator . "`status` = '{$status}'";
        $poll_separator = ', ';
        dbUpdate(array('status' => $status, 'status_reason' => $response['status_reason']), 'devices', 'device_id=?', array($device['device_id']));
        log_event('Device status changed to ' . ($status == '1' ? 'Up' : 'Down') . ' from ' . $response['status_reason'] . ' check.', $device, $status == '1' ? 'up' : 'down');
    }
    if ($status == '1') {
        $graphs = array();
        $oldgraphs = array();
        // we always want the core module to be included
        include 'includes/polling/core.inc.php';
        $force_module = false;
        if ($options['m']) {
            $config['poller_modules'] = array();
            foreach (explode(',', $options['m']) as $module) {
                if (is_file('includes/polling/' . $module . '.inc.php')) {
                    $config['poller_modules'][$module] = 1;
                    $force_module = true;
                }
            }
        }
        foreach ($config['poller_modules'] as $module => $module_status) {
            $os_module_status = $config['os'][$device['os']]['poller_modules'][$module];
            d_echo("Modules status: Global" . (isset($module_status) ? $module_status ? '+ ' : '- ' : '  '));
            d_echo("OS" . (isset($os_module_status) ? $os_module_status ? '+ ' : '- ' : '  '));
            d_echo("Device" . (isset($attribs['poll_' . $module]) ? $attribs['poll_' . $module] ? '+ ' : '- ' : '  '));
            if ($force_module === true || $attribs['poll_' . $module] || $os_module_status && !isset($attribs['poll_' . $module]) || $module_status && !isset($os_module_status) && !isset($attribs['poll_' . $module])) {
                $module_start = 0;
                $module_time = 0;
                $module_start = microtime(true);
                echo "\n#### Load poller module {$module} ####\n";
                include "includes/polling/{$module}.inc.php";
                $module_time = microtime(true) - $module_start;
                printf("\n>> Runtime for poller module '%s': %.4f seconds\n", $module, $module_time);
                echo "#### Unload poller module {$module} ####\n\n";
                // save per-module poller stats
                $tags = array('module' => $module, 'rrd_def' => 'DS:poller:GAUGE:600:0:U', 'rrd_name' => array('poller-perf', $module));
                $fields = array('poller' => $module_time);
                data_update($device, 'poller-perf', $tags, $fields);
//.........这里部分代码省略.........

function poll_device($device, $options)
{
    global $config, $device, $polled_devices, $db_stats, $exec_status, $alert_rules, $alert_table, $graphs, $attribs;
    $alert_metrics = array();
    $oid_cache = array();
    $old_device_state = unserialize($device['device_state']);
    $attribs = get_entity_attribs('device', $device['device_id']);
    $pid_info = check_process_run($device);
    // This just clear stalled DB entries
    add_process_info($device);
    // Store process info
    $alert_rules = cache_alert_rules();
    $alert_table = cache_device_alert_table($device['device_id']);
    if (OBS_DEBUG > 1 && (count($alert_rules) || count($alert_table))) {
        print_vars($alert_rules);
        print_vars($alert_table);
    }
    $status = 0;
    $device_start = utime();
    // Start counting device poll time
    print_cli_heading($device['hostname'] . " [" . $device['device_id'] . "]", 1);
    print_cli_data("OS", $device['os'], 1);
    if ($config['os'][$device['os']]['group']) {
        $device['os_group'] = $config['os'][$device['os']]['group'];
        print_cli_data("OS Group", $device['os_group'], 1);
    }
    if (is_numeric($device['last_polled_timetaken'])) {
        print_cli_data("Last poll duration", $device['last_polled_timetaken'] . " seconds", 1);
    }
    print_cli_data("Last Polled", $device['last_polled'], 1);
    print_cli_data("SNMP Version", $device['snmp_version'], 1);
    //unset($poll_update); unset($poll_update_query); unset($poll_separator);
    $update_array = array();
    $host_rrd_dir = $config['rrd_dir'] . "/" . $device['hostname'];
    if (!is_dir($host_rrd_dir)) {
        mkdir($host_rrd_dir);
        echo "Created directory : {$host_rrd_dir}\n";
    }
    $flags = OBS_DNS_ALL;
    if ($device['snmp_transport'] == 'udp6' || $device['snmp_transport'] == 'tcp6') {
        $flags = $flags ^ OBS_DNS_A;
    }
    $attribs['ping_skip'] = isset($attribs['ping_skip']) && $attribs['ping_skip'];
    if ($attribs['ping_skip']) {
        $flags = $flags | OBS_PING_SKIP;
        // Add skip ping flag
    }
    $device['pingable'] = isPingable($device['hostname'], $flags);
    if ($device['pingable']) {
        $device['snmpable'] = isSNMPable($device);
        if ($device['snmpable']) {
            $ping_msg = $attribs['ping_skip'] ? '' : 'PING (' . $device['pingable'] . 'ms) and ';
            print_cli_data("Device status", "Device is reachable by " . $ping_msg . "SNMP (" . $device['snmpable'] . "ms)", 1);
            $status = "1";
            $status_type = '';
        } else {
            print_cli_data("Device status", "Device is not responding to SNMP requests", 1);
            $status = "0";
            $status_type = 'snmp';
        }
    } else {
        print_cli_data("Device status", "Device is not responding to PINGs", 1);
        $status = "0";
        $status_type = 'ping';
    }
    if ($device['status'] != $status) {
        dbUpdate(array('status' => $status), 'devices', 'device_id = ?', array($device['device_id']));
        // dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => "Device is " .($status == '1' ? 'up' : 'down')), 'alerts');
        $event_msg = 'Device status changed to ';
        if ($status == '1') {
            // Device Up, Severity Warning (4)
            $event_msg .= 'Up';
            $event_severity = 4;
        } else {
            // Device Down, Severity Error (3)!
            $event_msg .= 'Down';
            $event_severity = 3;
        }
        if ($status_type != '') {
            $event_msg .= ' (' . $status_type . ')';
        }
        log_event($event_msg, $device, 'device', $device['device_id'], $event_severity);
    }
    rrdtool_update_ng($device, 'status', array('status' => $status));
    if (!$attribs['ping_skip']) {
        // Ping response RRD database.
        rrdtool_update_ng($device, 'ping', array('ping' => $device['pingable'] ? $device['pingable'] : 'U'));
    }
    // SNMP response RRD database.
    rrdtool_update_ng($device, 'ping_snmp', array('ping_snmp' => $device['snmpable'] ? $device['snmpable'] : 'U'));
    $alert_metrics['device_status'] = $status;
    $alert_metrics['device_status_type'] = $status_type;
    $alert_metrics['device_ping'] = $device['pingable'];
    // FIXME, when ping skipped, here always 0.001
    $alert_metrics['device_snmp'] = $device['snmpable'];
    if ($status == "1") {
        // Arrays for store and check enabled/disabled graphs
        $graphs = array();
        $graphs_db = array();
        foreach (dbFetchRows("SELECT * FROM `device_graphs` WHERE `device_id` = ?", array($device['device_id'])) as $entry) {
//.........这里部分代码省略.........

function addHost($host, $snmpver, $port = '161', $transport = 'udp', $quiet = '0')
{
    global $config;
    list($hostshort) = explode(".", $host);
    // Test Database Exists
    if (dbFetchCell("SELECT COUNT(*) FROM `devices` WHERE `hostname` = ?", array($host)) == '0') {
        // Test if IP or Hostname
        if (!inet_pton($host)) {
            // Test reachability
            if (isPingable($host)) {
                $added = 0;
                if (empty($snmpver)) {
                    // Try SNMPv2c
                    $snmpver = 'v2c';
                    $ret = addHost($host, $snmpver);
                    if (!$ret) {
                        //Try SNMPv3
                        $snmpver = 'v3';
                        $ret = addHost($host, $snmpver);
                        if (!$ret) {
                            // Try SNMPv1
                            $snmpver = 'v1';
                            return addHost($host, $snmpver);
                        } else {
                            return $ret;
                        }
                    } else {
                        return $ret;
                    }
                }
                if ($snmpver === "v3") {
                    // Try each set of parameters from config
                    foreach ($config['snmp']['v3'] as $v3) {
                        $device = deviceArray($host, NULL, $snmpver, $port, $transport, $v3);
                        if ($quiet == '0') {
                            print_message("Trying v3 parameters " . $v3['authname'] . "/" . $v3['authlevel'] . " ... ");
                        }
                        if (isSNMPable($device)) {
                            $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                            if (empty($snmphost) or $snmphost == $host || ($hostshort = $host)) {
                                $device_id = createHost($host, NULL, $snmpver, $port, $transport, $v3);
                                return $device_id;
                            } else {
                                if ($quiet == '0') {
                                    print_error("Given hostname does not match SNMP-read hostname ({$snmphost})!");
                                }
                            }
                        } else {
                            if ($quiet == '0') {
                                print_error("No reply on credentials " . $v3['authname'] . "/" . $v3['authlevel'] . " using {$snmpver}");
                            }
                        }
                    }
                } elseif ($snmpver === "v2c" or $snmpver === "v1") {
                    // try each community from config
                    foreach ($config['snmp']['community'] as $community) {
                        $device = deviceArray($host, $community, $snmpver, $port, $transport, NULL);
                        if ($quiet == '0') {
                            print_message("Trying community {$community} ...");
                        }
                        if (isSNMPable($device)) {
                            $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                            if ($snmphost == "" || $snmphost && ($snmphost == $host || ($hostshort = $host))) {
                                $device_id = createHost($host, $community, $snmpver, $port, $transport);
                                return $device_id;
                            } else {
                                if ($quiet == '0') {
                                    print_error("Given hostname does not match SNMP-read hostname ({$snmphost})!");
                                }
                            }
                        } else {
                            if ($quiet == '0') {
                                print_error("No reply on community {$community} using {$snmpver}");
                            }
                        }
                    }
                } else {
                    if ($quiet == '0') {
                        print_error("Unsupported SNMP Version \"{$snmpver}\".");
                    }
                }
                if (!$device_id) {
                    // Failed SNMP
                    if ($quiet == '0') {
                        print_error("Could not reach {$host} with given SNMP community using {$snmpver}");
                    }
                }
            } else {
                // failed Reachability
                if ($quiet == '0') {
                    print_error("Could not ping {$host}");
                }
            }
        } else {
            // Failed DNS lookup
            if ($quiet == '0') {
                print_error("{$host} looks like an IP address, please use FQDN");
            }
        }
    } else {
//.........这里部分代码省略.........

    }
}
if (!$where && !$options['u']) {
    print_message("%n\nUSAGE:\n{$scriptname} [-dquV] [-i instances] [-n number] [-m module] [-h device]\n\nEXAMPLE:\n-h <device id> | <device hostname wildcard>  Discover single device\n-h odd                                       Discover odd numbered devices  (same as -i 2 -n 0)\n-h even                                      Discover even numbered devices (same as -i 2 -n 1)\n-h all                                       Discover all devices\n-h new                                       Discover all devices that have not had a discovery run before\n\n-i <instances> -n <number>                   Discover as instance <number> of <instances>\n                                             Instances start at 0. 0-3 for -n 4\n\nOPTIONS:\n -h                                          Device hostname, id or key odd/even/all/new.\n -i                                          Discovery instance.\n -n                                          Discovery number.\n -q                                          Quiet output.\n -u                                          Upgrade DB schema\n -V                                          Show version and exit.\n\nDEBUGGING OPTIONS:\n -d                                          Enable debugging output.\n -m                                          Specify modules (separated by commas) to be run.\n\n%rInvalid arguments!%n", 'color', FALSE);
}
if ($config['version_check'] && ($options['h'] != 'new' || $options['u'])) {
    include $config['install_dir'] . '/includes/versioncheck.inc.php';
}
if (!$where) {
    exit;
}
$discovered_devices = 0;
foreach (dbFetchRows("SELECT * FROM `devices` WHERE `status` = 1 AND `disabled` = 0 {$where} ORDER BY `last_discovered_timetaken` ASC", $params) as $device) {
    // Additional check if device SNMPable, because during
    // discovery many devices (long time), the some device can be switched off
    if ($options['h'] == 'new' || isSNMPable($device)) {
        discover_device($device, $options);
        if (function_exists('update_device_alert_table')) {
            update_device_alert_table($device);
        }
        // not exist in 'community' edition
    } else {
        $string = "Device '" . $device['hostname'] . "' skipped, because switched off during runtime discovery process.";
        print_debug($string);
        logfile($argv[0] . ": {$string}");
    }
}
$end = utime();
$run = $end - $start;
$proctime = substr($run, 0, 5);
if ($discovered_devices) {

function add_device($host, $snmpver = array(), $port = '161', $transport = 'udp', $error = FALSE)
{
    global $config;
    // If $error set as TRUE break recursive function execute
    if ($error) {
        return FALSE;
    }
    // Reset snmp timeout and retries options for speedup device adding
    unset($config['snmp']['timeout'], $config['snmp']['retries']);
    list($hostshort) = explode(".", $host);
    // Test if host exists in database
    if (dbFetchCell("SELECT COUNT(*) FROM `devices` WHERE `hostname` = ?", array($host)) == '0') {
        // Test DNS lookup.
        if (gethostbyname6($host, TRUE)) {
            // Test reachability
            if (isPingable($host)) {
                // Test directory exists in /rrd/
                if (!$config['rrd_override'] && file_exists($config['rrd_dir'] . '/' . $host)) {
                    print_error("目录 rrd/{$host} 已经存在.");
                    return FALSE;
                }
                if (empty($snmpver)) {
                    foreach (array('v2c', 'v3', 'v1') as $snmpver) {
                        // Try SNMP v2c, v3 and v1
                        $ret = add_device($host, $snmpver, $port, $transport, $error);
                        if ($ret === FALSE) {
                            $error = TRUE;
                        } elseif (is_numeric($ret) && $ret > 0) {
                            return $ret;
                        }
                    }
                }
                if ($snmpver === "v3") {
                    // Try each set of parameters from config
                    foreach ($config['snmp']['v3'] as $v3) {
                        $device = deviceArray($host, NULL, $snmpver, $port, $transport, $v3);
                        print_message("Trying v3 parameters " . $v3['authname'] . "/" . $v3['authlevel'] . " ... ");
                        if (isSNMPable($device)) {
                            if (!check_device_duplicated($device)) {
                                $device_id = createHost($host, NULL, $snmpver, $port, $transport, $v3);
                                return $device_id;
                            }
                        } else {
                            print_warning("证书没有回应 " . $v3['authname'] . "/" . $v3['authlevel'] . " using {$snmpver}.");
                        }
                    }
                } elseif ($snmpver === "v2c" || $snmpver === "v1") {
                    // Try each community from config
                    foreach ($config['snmp']['community'] as $community) {
                        $device = deviceArray($host, $community, $snmpver, $port, $transport, NULL);
                        print_message("尝试 {$snmpver} community {$community} ...");
                        if (isSNMPable($device)) {
                            if (!check_device_duplicated($device)) {
                                $device_id = createHost($host, $community, $snmpver, $port, $transport);
                                return $device_id;
                            }
                        } else {
                            print_warning("Community 没有应答 {$community} 使用 {$snmpver}.");
                        }
                    }
                } else {
                    print_error("不支持的协议版本 \"{$snmpver}\".");
                }
                if (!$device_id) {
                    // Failed SNMP
                    print_error("不可到达的 {$host} 与给定 SNMP community 使用 {$snmpver}.");
                }
            } else {
                // failed Reachability
                print_error("无法 ping {$host}.");
            }
        } else {
            // Failed DNS lookup
            print_error("无法解析 {$host}.");
        }
    } else {
        // found in database
        print_error("已有设备 {$host}.");
    }
    return FALSE;
}

/**
 * Add a device to LibreNMS
 *
 * @param string $host dns name or ip address
 * @param string $snmp_version If this is empty, try v2c,v3,v1.  Otherwise, use this specific version.
 * @param string $port the port to connect to for snmp
 * @param string $transport udp or tcp
 * @param string $poller_group the poller group this device will belong to
 * @param boolean $force_add add even if the device isn't reachable
 * @param string $port_assoc_mode snmp field to use to determine unique ports
 *
 * @return int returns the device_id of the added device
 *
 * @throws HostExistsException This hostname already exists
 * @throws HostIpExistsException We already have a host with this IP
 * @throws HostUnreachableException We could not reach this device is some way
 * @throws HostUnreachablePingException We could not ping the device
 * @throws InvalidPortAssocModeException The given port association mode was invalid
 * @throws SnmpVersionUnsupportedException The given snmp version was invalid
 */
function addHost($host, $snmp_version = '', $port = '161', $transport = 'udp', $poller_group = '0', $force_add = false, $port_assoc_mode = 'ifIndex')
{
    global $config;
    // Test Database Exists
    if (host_exists($host) === true) {
        throw new HostExistsException("Already have host {$host}");
    }
    // Valid port assoc mode
    if (!is_valid_port_assoc_mode($port_assoc_mode)) {
        throw new InvalidPortAssocModeException("Invalid port association_mode '{$port_assoc_mode}'. Valid modes are: " . join(', ', get_port_assoc_modes()));
    }
    // check if we have the host by IP
    if ($config['addhost_alwayscheckip'] === true) {
        $ip = gethostbyname($host);
    } else {
        $ip = $host;
    }
    if (ip_exists($ip)) {
        throw new HostIpExistsException("Already have host with this IP {$host}");
    }
    // Test reachability
    if (!$force_add) {
        $address_family = snmpTransportToAddressFamily($transport);
        $ping_result = isPingable($host, $address_family);
        if (!$ping_result['result']) {
            throw new HostUnreachablePingException("Could not ping {$host}");
        }
    }
    // if $snmpver isn't set, try each version of snmp
    if (empty($snmp_version)) {
        $snmpvers = array('v2c', 'v3', 'v1');
    } else {
        $snmpvers = array($snmp_version);
    }
    $host_unreachable_exception = new HostUnreachableException("Could not connect, please check the snmp details and snmp reachability");
    // try different snmp variables to add the device
    foreach ($snmpvers as $snmpver) {
        if ($snmpver === "v3") {
            // Try each set of parameters from config
            foreach ($config['snmp']['v3'] as $v3) {
                $device = deviceArray($host, null, $snmpver, $port, $transport, $v3, $port_assoc_mode);
                if ($force_add === true || isSNMPable($device)) {
                    if ($force_add !== true) {
                        $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                    }
                    $result = createHost($host, null, $snmpver, $port, $transport, $v3, $poller_group, $port_assoc_mode, $snmphost, $force_add);
                    if ($result !== false) {
                        return $result;
                    }
                } else {
                    $host_unreachable_exception->addReason("SNMP {$snmpver}: No reply with credentials " . $v3['authname'] . "/" . $v3['authlevel']);
                }
            }
        } elseif ($snmpver === "v2c" || $snmpver === "v1") {
            // try each community from config
            foreach ($config['snmp']['community'] as $community) {
                $device = deviceArray($host, $community, $snmpver, $port, $transport, null, $port_assoc_mode);
                if ($force_add === true || isSNMPable($device)) {
                    if ($force_add !== true) {
                        $snmphost = snmp_get($device, "sysName.0", "-Oqv", "SNMPv2-MIB");
                    }
                    $result = createHost($host, $community, $snmpver, $port, $transport, array(), $poller_group, $port_assoc_mode, $snmphost, $force_add);
                    if ($result !== false) {
                        return $result;
                    }
                } else {
                    $host_unreachable_exception->addReason("SNMP {$snmpver}: No reply with community {$community}");
                }
            }
        } else {
            throw new SnmpVersionUnsupportedException("Unsupported SNMP Version \"{$snmpver}\", must be v1, v2c, or v3");
        }
    }
    throw $host_unreachable_exception;
}

function poll_device($device, $options)
{
    global $config, $debug, $device, $polled_devices, $db_stats, $memcache;
    $old_device_state = unserialize($device['device_state']);
    $attribs = get_dev_attribs($device['device_id']);
    $status = 0;
    unset($array);
    $device_start = utime();
    // Start counting device poll time
    echo $device['hostname'] . " " . $device['device_id'] . " " . $device['os'] . " ";
    if ($config['os'][$device['os']]['group']) {
        $device['os_group'] = $config['os'][$device['os']]['group'];
        echo "(" . $device['os_group'] . ")";
    }
    echo "\n";
    unset($poll_update);
    unset($poll_update_query);
    unset($poll_separator);
    $poll_update_array = array();
    $host_rrd = $config['rrd_dir'] . "/" . $device['hostname'];
    if (!is_dir($host_rrd)) {
        mkdir($host_rrd);
        echo "Created directory : {$host_rrd}\n";
    }
    $device['pingable'] = isPingable($device['hostname']);
    if ($device['pingable']) {
        $device['snmpable'] = isSNMPable($device);
        if ($device['snmpable']) {
            $status = "1";
            $status_type = '';
        } else {
            echo "SNMP Unreachable";
            $status = "0";
            $status_type = ' (snmp)';
        }
    } else {
        echo "Unpingable";
        $status = "0";
        $status_type = ' (ping)';
    }
    if ($device['status'] != $status) {
        $poll_update .= $poll_separator . "`status` = '{$status}'";
        $poll_separator = ", ";
        dbUpdate(array('status' => $status), 'devices', 'device_id=?', array($device['device_id']));
        dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => "Device is " . ($status == '1' ? 'up' : 'down')), 'alerts');
        log_event('Device status changed to ' . ($status == '1' ? 'Up' : 'Down') . $status_type, $device, 'system');
        notify($device, "Device " . ($status == '1' ? 'Up' : 'Down') . ": " . $device['hostname'] . $status_type, "Device " . ($status == '1' ? 'up' : 'down') . ": " . $device['hostname']);
    }
    $rrd = $config['rrd_dir'] . "/" . $device['hostname'] . "/status.rrd";
    if (!is_file($rrd)) {
        rrdtool_create($rrd, "DS:status:GAUGE:600:0:1 " . $config['rrd_rra']);
    }
    if ($status == "1" || $status == "0") {
        rrdtool_update($rrd, "N:" . $status);
    } else {
        rrdtool_update($rrd, "N:U");
    }
    // Ping response RRD database.
    $ping_rrd = $config['rrd_dir'] . '/' . $device['hostname'] . '/ping.rrd';
    if (!is_file($ping_rrd)) {
        rrdtool_create($ping_rrd, "DS:ping:GAUGE:600:0:65535 " . $config['rrd_rra']);
    }
    if ($device['pingable']) {
        rrdtool_update($ping_rrd, "N:" . $device['pingable']);
    } else {
        rrdtool_update($ping_rrd, "N:U");
    }
    // SNMP response RRD database.
    $ping_snmp_rrd = $config['rrd_dir'] . '/' . $device['hostname'] . '/ping_snmp.rrd';
    if (!is_file($ping_snmp_rrd)) {
        rrdtool_create($ping_snmp_rrd, "DS:ping_snmp:GAUGE:600:0:65535 " . $config['rrd_rra']);
    }
    if ($device['snmpable']) {
        rrdtool_update($ping_snmp_rrd, "N:" . $device['snmpable']);
    } else {
        rrdtool_update($ping_snmp_rrd, "N:U");
    }
    if ($status == "1") {
        $graphs = array();
        $oldgraphs = array();
        // Enable Ping graphs
        $graphs['ping'] = TRUE;
        // Enable SNMP graphs
        $graphs['ping_snmp'] = TRUE;
        if ($options['m']) {
            foreach (explode(",", $options['m']) as $module) {
                if (is_file("includes/polling/" . $module . ".inc.php")) {
                    include "includes/polling/" . $module . ".inc.php";
                }
            }
        } else {
            foreach ($config['poller_modules'] as $module => $module_status) {
                if ($attribs['poll_' . $module] || $module_status && !isset($attribs['poll_' . $module])) {
                    if ($debug) {
                        echo "including: includes/polling/{$module}.inc.php\n";
                    }
                    include 'includes/polling/' . $module . '.inc.php';
                } elseif (isset($attribs['poll_' . $module]) && $attribs['poll_' . $module] == "0") {
                    echo "Module [ {$module} ] disabled on host.\n";
                } else {
//.........这里部分代码省略.........

function poll_device($device, $options)
{
    global $config, $debug, $device, $polled_devices, $db_stats, $memcache, $exec_status, $alert_rules, $alert_table;
    $oid_cache = array();
    $old_device_state = unserialize($device['device_state']);
    $attribs = get_dev_attribs($device['device_id']);
    $alert_rules = cache_alert_rules();
    $alert_table = cache_device_alert_table($device['device_id']);
    if ($debug && (count($alert_rules) || count($alert_table))) {
        print_vars($alert_rules);
        print_vars($alert_table);
    }
    $status = 0;
    unset($array);
    $device_start = utime();
    // Start counting device poll time
    echo $device['hostname'] . " " . $device['device_id'] . " " . $device['os'] . " ";
    if ($config['os'][$device['os']]['group']) {
        $device['os_group'] = $config['os'][$device['os']]['group'];
        echo "(" . $device['os_group'] . ")";
    }
    echo "\n";
    unset($poll_update);
    unset($poll_update_query);
    unset($poll_separator);
    $poll_update_array = array();
    $host_rrd = $config['rrd_dir'] . "/" . $device['hostname'];
    if (!is_dir($host_rrd)) {
        mkdir($host_rrd);
        echo "Created directory : {$host_rrd}\n";
    }
    $device['pingable'] = isPingable($device['hostname']);
    if ($device['pingable']) {
        $device['snmpable'] = isSNMPable($device);
        if ($device['snmpable']) {
            $status = "1";
            $status_type = '';
        } else {
            echo "SNMP Unreachable";
            $status = "0";
            $status_type = ' (snmp)';
        }
    } else {
        echo "Unpingable";
        $status = "0";
        $status_type = ' (ping)';
    }
    if ($device['status'] != $status) {
        $poll_update .= $poll_separator . "`status` = '{$status}'";
        $poll_separator = ", ";
        dbUpdate(array('status' => $status), 'devices', 'device_id=?', array($device['device_id']));
        dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => "Device is " . ($status == '1' ? 'up' : 'down')), 'alerts');
        log_event('Device status changed to ' . ($status == '1' ? 'Up' : 'Down') . $status_type, $device, 'system');
        notify($device, "Device " . ($status == '1' ? 'Up' : 'Down') . ": " . $device['hostname'] . $status_type, "Device " . ($status == '1' ? 'up' : 'down') . ": " . $device['hostname']);
    }
    $rrd = $config['rrd_dir'] . "/" . $device['hostname'] . "/status.rrd";
    if (!is_file($rrd)) {
        rrdtool_create($rrd, "DS:status:GAUGE:600:0:1 ");
    }
    if ($status == "1" || $status == "0") {
        rrdtool_update($rrd, "N:" . $status);
    } else {
        rrdtool_update($rrd, "N:U");
    }
    // Ping response RRD database.
    $ping_rrd = $config['rrd_dir'] . '/' . $device['hostname'] . '/ping.rrd';
    if (!is_file($ping_rrd)) {
        rrdtool_create($ping_rrd, "DS:ping:GAUGE:600:0:65535 ");
    }
    if ($device['pingable']) {
        rrdtool_update($ping_rrd, "N:" . $device['pingable']);
    } else {
        rrdtool_update($ping_rrd, "N:U");
    }
    // SNMP response RRD database.
    $ping_snmp_rrd = $config['rrd_dir'] . '/' . $device['hostname'] . '/ping_snmp.rrd';
    if (!is_file($ping_snmp_rrd)) {
        rrdtool_create($ping_snmp_rrd, "DS:ping_snmp:GAUGE:600:0:65535 ");
    }
    if ($device['snmpable']) {
        rrdtool_update($ping_snmp_rrd, "N:" . $device['snmpable']);
    } else {
        rrdtool_update($ping_snmp_rrd, "N:U");
    }
    if ($status == "1") {
        $graphs = array();
        $oldgraphs = array();
        // Enable Ping graphs
        $graphs['ping'] = TRUE;
        // Enable SNMP graphs
        $graphs['ping_snmp'] = TRUE;
        // Run this base modules always and before all other modules!
        $poll_modules = array('system', 'os');
        if ($options['m']) {
            foreach (explode(',', $options['m']) as $module) {
                $module = trim($module);
                if (in_array($module, $poll_modules)) {
                    continue;
                }
                // Skip already added modules
//.........这里部分代码省略.........

function poll_device($device, $options)
{
    global $config, $device, $polled_devices, $db_stats, $memcache, $exec_status, $alert_rules, $alert_table, $graphs, $attribs;
    $alert_metrics = array();
    $oid_cache = array();
    $old_device_state = unserialize($device['device_state']);
    $attribs = get_dev_attribs($device['device_id']);
    $alert_rules = cache_alert_rules();
    $alert_table = cache_device_alert_table($device['device_id']);
    if (OBS_DEBUG > 1 && (count($alert_rules) || count($alert_table))) {
        print_vars($alert_rules);
        print_vars($alert_table);
    }
    $status = 0;
    unset($array);
    $device_start = utime();
    // Start counting device poll time
    echo $device['hostname'] . " " . $device['device_id'] . " " . $device['os'] . " ";
    if ($config['os'][$device['os']]['group']) {
        $device['os_group'] = $config['os'][$device['os']]['group'];
        echo "(" . $device['os_group'] . ")";
    }
    echo "\n";
    unset($poll_update);
    unset($poll_update_query);
    unset($poll_separator);
    $poll_update_array = array();
    $host_rrd_dir = $config['rrd_dir'] . "/" . $device['hostname'];
    if (!is_dir($host_rrd_dir)) {
        mkdir($host_rrd_dir);
        echo "创建的目录 : {$host_rrd_dir}\n";
    }
    $try_a = !($device['snmp_transport'] == 'udp6' || $device['snmp_transport'] == 'tcp6');
    // Use IPv6 only if transport 'udp6' or 'tcp6'
    $device['pingable'] = isPingable($device['hostname'], $try_a);
    if ($device['pingable']) {
        $device['snmpable'] = isSNMPable($device);
        if ($device['snmpable']) {
            $status = "1";
            $status_type = '';
        } else {
            echo "SNMP 无法访问";
            $status = "0";
            $status_type = 'snmp';
        }
    } else {
        echo "Unpingable";
        $status = "0";
        $status_type = 'ping';
    }
    if ($device['status'] != $status) {
        $poll_update .= $poll_separator . "`status` = '{$status}'";
        $poll_separator = ", ";
        dbUpdate(array('status' => $status), 'devices', 'device_id = ?', array($device['device_id']));
        dbInsert(array('importance' => '0', 'device_id' => $device['device_id'], 'message' => "设备的 " . ($status == '1' ? 'up' : 'down')), 'alerts');
        $event_msg = '设备状态变更为 ';
        if ($status == '1') {
            // Device Up, Severity Warning (4)
            $event_msg .= 'Up';
            $event_severity = 4;
        } else {
            // Device Down, Severity Error (3)!
            $event_msg .= 'Down';
            $event_severity = 3;
        }
        if ($status_type != '') {
            $event_msg .= ' (' . $status_type . ')';
        }
        log_event($event_msg, $device, 'device', $device['device_id'], $event_severity);
    }
    $rrd_filename = "status.rrd";
    rrdtool_create($device, $rrd_filename, "DS:status:GAUGE:600:0:1 ");
    if ($status == "1" || $status == "0") {
        rrdtool_update($device, $rrd_filename, "N:" . $status);
    } else {
        rrdtool_update($device, $rrd_filename, "N:U");
    }
    // Ping response RRD database.
    $ping_rrd = 'ping.rrd';
    rrdtool_create($device, $ping_rrd, "DS:ping:GAUGE:600:0:65535 ");
    if ($device['pingable']) {
        rrdtool_update($device, $ping_rrd, "N:" . $device['pingable']);
    } else {
        rrdtool_update($device, $ping_rrd, "N:U");
    }
    // SNMP response RRD database.
    $ping_snmp_rrd = 'ping_snmp.rrd';
    rrdtool_create($device, $ping_snmp_rrd, "DS:ping_snmp:GAUGE:600:0:65535 ");
    if ($device['snmpable']) {
        rrdtool_update($device, $ping_snmp_rrd, "N:" . $device['snmpable']);
    } else {
        rrdtool_update($device, $ping_snmp_rrd, "N:U");
    }
    $alert_metrics['device_status'] = $status;
    $alert_metrics['device_status_type'] = $status_type;
    $alert_metrics['device_ping'] = $device['pingable'];
    $alert_metrics['device_snmp'] = $device['snmpable'];
    if ($status == "1") {
        // Arrays for store and check enabled/disabled graphs
        $graphs = array();
//.........这里部分代码省略.........