PHP match_network函数代码示例

function discover_new_device($hostname, $source = 'xdp')
{
    global $config, $debug;
    if ($config['autodiscovery'][$source]) {
        echo "Discovering new host {$hostname}\n";
        if (!empty($config['mydomain']) && isDomainResolves($hostname . "." . $config['mydomain'])) {
            if ($debug) {
                echo "appending " . $config['mydomain'] . "!\n";
            }
            $dst_host = $hostname . "." . $config['mydomain'];
        } else {
            $dst_host = $hostname;
        }
        $ip = gethostbyname($dst_host);
        if ($debug) {
            echo "resolving {$dst_host} to {$ip}\n";
        }
        if (match_network($config['autodiscovery']['ip_nets'], $ip)) {
            if ($debug) {
                echo "found {$ip} inside configured nets, adding!\n";
            }
            $remote_device_id = addHost($dst_host);
            if ($remote_device_id) {
                $remote_device = device_by_id_cache($remote_device_id, 1);
                array_push($GLOBALS['devices'], $remote_device);
                return $remote_device_id;
            }
        }
    } else {
        if ($debug) {
            echo "{$source} autodiscovery disabled";
        }
        return FALSE;
    }
}

function discover_new_device($hostname, $device = '', $method = '', $interface = '')
{
    global $config;
    if (!empty($config['mydomain']) && isDomainResolves($hostname . '.' . $config['mydomain'])) {
        $dst_host = $hostname . '.' . $config['mydomain'];
    } else {
        $dst_host = $hostname;
    }
    d_echo("discovering {$dst_host}\n");
    $ip = gethostbyname($dst_host);
    if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === false && filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) {
        // $ip isn't a valid IP so it must be a name.
        if ($ip == $dst_host) {
            d_echo("name lookup of {$dst_host} failed\n");
            log_event("{$method} discovery of " . $dst_host . " failed - Check name lookup", $device['device_id'], 'discovery');
            return false;
        }
    } elseif (filter_var($dst_host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === true || filter_var($dst_host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === true) {
        // gethostbyname returned a valid $ip, was $dst_host an IP?
        if ($config['discovery_by_ip'] === false) {
            d_echo('Discovery by IP disabled, skipping ' . $dst_host);
            log_event("{$method} discovery of " . $dst_host . " failed - Discovery by IP disabled", $device['device_id'], 'discovery');
            return false;
        }
    }
    d_echo("ip lookup result: {$ip}\n");
    $dst_host = rtrim($dst_host, '.');
    // remove trailing dot
    if (match_network($config['autodiscovery']['nets-exclude'], $ip)) {
        d_echo("{$ip} in an excluded network - skipping\n");
        return false;
    }
    if (match_network($config['nets'], $ip)) {
        try {
            $remote_device_id = addHost($dst_host, '', '161', 'udp', $config['distributed_poller_group']);
            $remote_device = device_by_id_cache($remote_device_id, 1);
            echo '+[' . $remote_device['hostname'] . '(' . $remote_device['device_id'] . ')]';
            discover_device($remote_device);
            device_by_id_cache($remote_device_id, 1);
            if ($remote_device_id && is_array($device) && !empty($method)) {
                $extra_log = '';
                $int = ifNameDescr($interface);
                if (is_array($int)) {
                    $extra_log = ' (port ' . $int['label'] . ') ';
                }
                log_event('Device ' . $remote_device['hostname'] . " ({$ip}) {$extra_log} autodiscovered through {$method} on " . $device['hostname'], $remote_device_id, 'discovery');
            } else {
                log_event("{$method} discovery of " . $remote_device['hostname'] . " ({$ip}) failed - Check ping and SNMP access", $device['device_id'], 'discovery');
            }
            return $remote_device_id;
        } catch (HostExistsException $e) {
            // already have this device
        } catch (Exception $e) {
            log_event("{$method} discovery of " . $dst_host . " ({$ip}) failed - " . $e->getMessage());
        }
    } else {
        d_echo("{$ip} not in a matched network - skipping\n");
    }
    //end if
}

function discover_new_device($hostname, $device = '', $method = '', $interface = '')
{
    global $config, $debug;
    if (!empty($config['mydomain']) && isDomainResolves($hostname . '.' . $config['mydomain'])) {
        $dst_host = $hostname . '.' . $config['mydomain'];
    } else {
        $dst_host = $hostname;
    }
    if ($debug) {
        echo "discovering {$dst_host}\n";
    }
    $ip = gethostbyname($dst_host);
    if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === false && filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) {
        // $ip isn't a valid IP so it must be a name.
        if ($ip == $dst_host) {
            if ($debug) {
                echo "name lookup of {$dst_host} failed\n";
            }
            return false;
        }
    }
    if ($debug) {
        echo "ip lookup result: {$ip}\n";
    }
    $dst_host = rtrim($dst_host, '.');
    // remove trailing dot
    if (match_network($config['autodiscovery']['nets-exclude'], $ip)) {
        if ($debug) {
            echo "{$ip} in an excluded network - skipping\n";
        }
        return false;
    }
    if (match_network($config['nets'], $ip)) {
        $remote_device_id = addHost($dst_host, '', '161', 'udp', '0', $config['distributed_poller_group']);
        if ($remote_device_id) {
            $remote_device = device_by_id_cache($remote_device_id, 1);
            echo '+[' . $remote_device['hostname'] . '(' . $remote_device['device_id'] . ')]';
            discover_device($remote_device);
            device_by_id_cache($remote_device_id, 1);
            if ($remote_device_id && is_array($device) && !empty($method)) {
                $extra_log = '';
                $int = ifNameDescr($interface);
                if (is_array($int)) {
                    $extra_log = ' (port ' . $int['label'] . ') ';
                }
                log_event('Device $' . $remote_device['hostname'] . " ({$ip}) {$extra_log} autodiscovered through {$method} on " . $device['hostname'], $remote_device_id, 'system');
            } else {
                log_event("{$method} discovery of " . $remote_device['hostname'] . " ({$ip}) failed - check ping and SNMP access", $device['device_id'], 'system');
            }
            return $remote_device_id;
        }
    } else {
        if ($debug) {
            echo "{$ip} not in a matched network - skipping\n";
        }
    }
    //end if
}

function perform_snmp_scan($net)
{
    global $stats, $config, $debug, $vdebug;
    echo 'Range: ' . $net->network . '/' . $net->bitmask . PHP_EOL;
    $config['snmp']['timeout'] = 1;
    $config['snmp']['retries'] = 0;
    $config['fping_options']['retries'] = 0;
    $start = ip2long($net->network);
    $end = ip2long($net->broadcast) - 1;
    while ($start++ < $end) {
        $stats['count']++;
        $host = long2ip($start);
        if (match_network($config['autodiscovery']['nets-exclude'], $host)) {
            echo '|';
            continue;
        }
        $test = isPingable($host);
        if ($test['result'] === false) {
            echo '.';
            continue;
        }
        if (ip_exists($host)) {
            $stats['known']++;
            echo '*';
            continue;
        }
        foreach (array('udp', 'tcp') as $transport) {
            try {
                addHost(gethostbyaddr($host), '', $config['snmp']['port'], $transport, $config['distributed_poller_group']);
                $stats['added']++;
                echo '+';
                break;
            } catch (HostExistsException $e) {
                $stats['known']++;
                echo '*';
                break;
            } catch (HostUnreachablePingException $e) {
                echo '.';
                break;
            } catch (HostUnreachableException $e) {
                if ($debug) {
                    print_error($e->getMessage() . " over {$transport}");
                    foreach ($e->getReasons() as $reason) {
                        echo "  {$reason}\n";
                    }
                }
                if ($transport == 'tcp') {
                    // tried both udp and tcp without success
                    $stats['failed']++;
                    echo '-';
                }
            }
        }
    }
    echo PHP_EOL;
}

function discover_new_device($hostname)
{
    global $config, $debug;
    if ($config['autodiscovery']['xdp']) {
        if (isDomainResolves($hostname . "." . $config['mydomain'])) {
            $dst_host = $hostname . "." . $config['mydomain'];
        } else {
            $dst_host = $hostname;
        }
        if ($debug) {
            echo "discovering {$dst_host}\n";
        }
        $ip = gethostbyname($dst_host);
        if ($ip == $dst_host) {
            if ($debug) {
                echo "name lookup of {$dst_host} failed\n";
            }
            return FALSE;
        } else {
            if ($debug) {
                echo "ip lookup result: {$ip}\n";
            }
        }
        $dst_host = rtrim($dst_host, '.');
        // remove trailing dot
        if (match_network($config['autodiscovery']['nets-exclude'], $ip)) {
            if ($debug) {
                echo "{$ip} in an excluded network - skipping\n";
            }
            return FALSE;
        }
        if (match_network($config['nets'], $ip)) {
            $remote_device_id = addHost($dst_host);
            if ($remote_device_id) {
                $remote_device = device_by_id_cache($remote_device_id, 1);
                echo "+[" . $remote_device['hostname'] . "(" . $remote_device['device_id'] . ")]";
                discover_device($remote_device);
                $remote_device = device_by_id_cache($remote_device_id, 1);
                return $remote_device_id;
            }
        } else {
            if ($debug) {
                echo "{$ip} not in a matched network - skipping\n";
            }
        }
    } else {
        if ($debug) {
            echo "autodiscovery disabled - skipping\n";
        }
        return FALSE;
    }
}

function discover_new_device($hostname)
{
    global $config, $debug;
    if (!empty($config['mydomain']) && isDomainResolves($hostname . "." . $config['mydomain'])) {
        $dst_host = $hostname . "." . $config['mydomain'];
    } else {
        $dst_host = $hostname;
    }
    if ($debug) {
        echo "discovering {$dst_host}\n";
    }
    $ip = gethostbyname($dst_host);
    if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === FALSE && filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === FALSE) {
        // $ip isn't a valid IP so it must be a name.
        if ($ip == $dst_host) {
            if ($debug) {
                echo "name lookup of {$dst_host} failed\n";
            }
            return FALSE;
        }
    }
    if ($debug) {
        echo "ip lookup result: {$ip}\n";
    }
    $dst_host = rtrim($dst_host, '.');
    // remove trailing dot
    if (match_network($config['autodiscovery']['nets-exclude'], $ip)) {
        if ($debug) {
            echo "{$ip} in an excluded network - skipping\n";
        }
        return FALSE;
    }
    if (match_network($config['nets'], $ip)) {
        $remote_device_id = addHost($dst_host, '', '161', 'udp', '0', $config['distributed_poller_group']);
        if ($remote_device_id) {
            $remote_device = device_by_id_cache($remote_device_id, 1);
            echo "+[" . $remote_device['hostname'] . "(" . $remote_device['device_id'] . ")]";
            discover_device($remote_device);
            device_by_id_cache($remote_device_id, 1);
            return $remote_device_id;
        }
    } else {
        if ($debug) {
            echo "{$ip} not in a matched network - skipping\n";
        }
    }
}

function discover_new_device($hostname, $source = 'xdp', $protocol = NULL, $device = NULL, $port = NULL)
{
    global $config, $debug;
    # FIXME remodel function a bit like the one above? refactor so they share some parts?
    if ($config['autodiscovery'][$source]) {
        echo "Discovering new host {$hostname}\n";
        if (!empty($config['mydomain']) && isDomainResolves($hostname . "." . $config['mydomain'])) {
            if ($debug) {
                echo "appending " . $config['mydomain'] . "!\n";
            }
            $dst_host = $hostname . "." . $config['mydomain'];
        } else {
            $dst_host = $hostname;
        }
        $ip = gethostbyname($dst_host);
        if ($debug) {
            echo "resolving {$dst_host} to {$ip}\n";
        }
        if (match_network($config['autodiscovery']['ip_nets'], $ip)) {
            if ($debug) {
                echo "found {$ip} inside configured nets, adding!\n";
            }
            $remote_device_id = add_device($dst_host);
            if ($remote_device_id) {
                $remote_device = device_by_id_cache($remote_device_id, 1);
                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'], $remote_device_id);
                }
                array_push($GLOBALS['devices'], $remote_device);
                return $remote_device_id;
            }
        }
    } else {
        if ($debug) {
            echo "{$source} autodiscovery disabled";
        }
        return FALSE;
    }
}

        }
        //end foreach
    }
    //end if
}
//end elseif
echo ' OSPF Discovery: ';
if ($config['autodiscovery']['ospf'] === true) {
    echo "enabled\n";
    foreach (dbFetchRows('SELECT DISTINCT(`ospfNbrIpAddr`),`device_id` FROM `ospf_nbrs` WHERE `device_id`=?', array($device['device_id'])) as $nbr) {
        $ip = $nbr['ospfNbrIpAddr'];
        if (match_network($config['autodiscovery']['nets-exclude'], $ip)) {
            echo 'x';
            continue;
        }
        if (!match_network($config['nets'], $ip)) {
            echo 'i';
            continue;
        }
        $name = gethostbyaddr($ip);
        $remote_device_id = discover_new_device($name, $device, 'OSPF');
    }
} else {
    echo "disabled\n";
}
d_echo($link_exists);
$sql = "SELECT * FROM `links` AS L, `ports` AS I WHERE L.local_port_id = I.port_id AND I.device_id = '" . $device['device_id'] . "'";
foreach (dbFetchRows($sql) as $test) {
    $local_port_id = $test['local_port_id'];
    $remote_hostname = $test['remote_hostname'];
    $remote_port = $test['remote_port'];

 *
 * @package    observium
 * @subpackage discovery
 * @author     Adam Armstrong <adama@memetic.org>
 * @copyright  (C) 2006 - 2013 Adam Armstrong
 *
 */
include "includes/defaults.inc.php";
include "config.php";
include "includes/definitions.inc.php";
include "includes/functions.php";
$handle = fopen("ips.txt", "w");
foreach (dbFetchRows("SELECT * FROM `ipv4_networks`") as $data) {
    $cidr = $data['ipv4_network'];
    list($network, $bits) = explode("/", $cidr);
    if ($bits != '32' && $bits != '32' && $bits > '22') {
        $addr = Net_IPv4::parseAddress($cidr);
        $broadcast = $addr->broadcast;
        $ip = ip2long($network) + '1';
        $end = ip2long($broadcast);
        while ($ip < $end) {
            $ipdotted = long2ip($ip);
            if (dbFetchCell("SELECT COUNT(ipv4_address_id) FROM `ipv4_addresses` WHERE `ipv4_address` = ?", array($ipdotted)) == '0' && match_network($config['nets'], $ipdotted)) {
                fputs($handle, $ipdotted . "\n");
            }
            $ip++;
        }
    }
}
fclose($handle);
shell_exec("fping -t 100 -f ips.txt > ips-scanned.txt");

function discover_new_device($hostname, $source = 'xdp', $protocol = NULL, $device = NULL, $snmp_port = 161)
{
    global $config;
    $source = strtolower($source);
    if ($config['autodiscovery'][$source]) {
        if (!$protocol) {
            $protocol = strtoupper($source);
        }
        print_message("发现新主机 {$hostname} 通过 {$protocol}");
        // By first detect hostname is IP or domain name (IPv4/6 == 4/6, hostname == FALSE)
        $ip_version = get_ip_version($hostname);
        if ($ip_version) {
            // Hostname is IPv4/IPv6
            $use_ip = TRUE;
            $ip = $hostname;
        } else {
            $use_ip = FALSE;
            if (!empty($config['mydomain']) && isDomainResolves($hostname . '.' . $config['mydomain'])) {
                $hostname .= '.' . $config['mydomain'];
            }
            $ip = gethostbyname6($hostname);
            if ($ip) {
                $ip_version = get_ip_version($ip);
                print_debug("主机 {$hostname} 解析为 {$ip}");
            } else {
                // No DNS records
                print_debug("主机 {$hostname} 无法解析, 自动发现失败.");
                return FALSE;
            }
        }
        if (match_network($ip, $config['autodiscovery']['ip_nets'])) {
            print_debug("主机 {$hostname} ({$ip}) 内部网络创建配置, 尝试增加:");
            if (isPingable($ip)) {
                // Check if device duplicated by IP
                $ip = $ip_version == 4 ? $ip : Net_IPv6::uncompress($ip, TRUE);
                $db = dbFetchRow('SELECT D.`hostname` FROM ipv' . $ip_version . '_addresses AS A
                         LEFT JOIN `ports`   AS P ON A.`port_id`   = P.`port_id`
                         LEFT JOIN `devices` AS D ON D.`device_id` = P.`device_id`
                         WHERE D.`disabled` = 0 AND A.`ipv' . $ip_version . '_address` = ?', array($ip));
                if ($db) {
                    print_debug('已经有设备 ' . $db['hostname'] . " 包含 {$ip}");
                    return FALSE;
                }
                // Detect snmp transport
                $snmp_transport = $ip_version == 4 ? 'udp' : 'udp6';
                $new_device = detect_device_snmpauth($ip, $snmp_port, $snmp_transport);
                if ($new_device) {
                    if ($use_ip) {
                        // Detect FQDN hostname
                        // by sysName
                        $snmphost = snmp_get($new_device, "sysName.0", "-Oqv", "SNMPv2-MIB", mib_dirs());
                        if ($snmphost) {
                            $snmp_ip = gethostbyname6($snmphost);
                        }
                        if ($snmp_ip == $ip) {
                            $hostname = $snmphost;
                        } else {
                            // by PTR
                            $ptr = gethostbyaddr6($ip);
                            if ($ptr) {
                                $ptr_ip = gethostbyname6($ptr);
                            }
                            if ($ptr && $ptr_ip == $ip) {
                                $hostname = $ptr;
                            } else {
                                print_debug("设备 IP {$ip} 没有 FQDN 名称");
                                return FALSE;
                            }
                        }
                        print_debug("设备 IP {$ip} 发现 FQDN 名称: {$hostname}");
                    }
                    $new_device['hostname'] = $hostname;
                    if (!check_device_duplicated($new_device)) {
                        $snmp_v3 = array();
                        if ($new_device['snmp_version'] === 'v3') {
                            $snmp_v3['snmp_authlevel'] = $new_device['snmp_authlevel'];
                            $snmp_v3['snmp_authname'] = $new_device['snmp_authname'];
                            $snmp_v3['snmp_authpass'] = $new_device['snmp_authpass'];
                            $snmp_v3['snmp_authalgo'] = $new_device['snmp_authalgo'];
                            $snmp_v3['snmp_cryptopass'] = $new_device['snmp_cryptopass'];
                            $snmp_v3['snmp_cryptoalgo'] = $new_device['snmp_cryptoalgo'];
                        }
                        $remote_device_id = createHost($new_device['hostname'], $new_device['snmp_community'], $new_device['snmp_version'], $new_device['snmp_port'], $new_device['snmp_transport'], $snmp_v3);
                        if ($remote_device_id) {
                            $remote_device = device_by_id_cache($remote_device_id, 1);
                            if ($port) {
                                humanize_port($port);
                                log_event("设备自动发现通过 {$protocol} 在 " . $device['hostname'] . " (port " . $port['label'] . ")", $remote_device_id, 'port', $port['port_id']);
                            } else {
                                log_event("设备自动发现通过 {$protocol} 在 " . $device['hostname'], $remote_device_id, $protocol);
                            }
                            //array_push($GLOBALS['devices'], $remote_device); // createHost() already puth this
                            return $remote_device_id;
                        }
                    }
                }
            }
        } else {
            print_debug("IP {$ip} ({$hostname}) 不允许内部 \$config['autodiscovery']['ip_nets'] 位于 config.php");
        }
//.........这里部分代码省略.........

#!/usr/bin/php
<?php 
include "includes/defaults.inc.php";
include "config.php";
include "includes/functions.php";
shell_exec("rm ips.txt && touch ips.txt");
$handle = fopen("ips.txt", "w+");
$query = mysql_query("SELECT * FROM `networks`");
while ($data = mysql_fetch_array($query)) {
    $cidr = $data['cidr'];
    list($network, $bits) = split("/", $cidr);
    if ($bits != '32' && $bits != '32' && $bits > '22') {
        $broadcast = trim(shell_exec($config['ipcalc'] . " {$cidr} | grep Broadcast | cut -d\" \" -f 2"));
        $ip = ip2long($network) + '1';
        $end = ip2long($broadcast);
        while ($ip < $end) {
            $ipdotted = long2ip($ip);
            if (mysql_result(mysql_query("SELECT count(id) FROM ipaddr WHERE addr = '{$ipdotted}'"), 0) == '0' && match_network($config['nets'], $ipdotted)) {
                fputs($handle, $ipdotted . "\n");
            }
            $ip++;
        }
    }
}
`fping -t 100 -f ips.txt > ips-scanned.txt`;

function discover_new_device($hostname, $source = 'xdp', $protocol = NULL, $device = NULL, $snmp_port = 161)
{
    global $config;
    $source = strtolower($source);
    // Check if source is enabled for autodiscovery
    if ($config['autodiscovery'][$source]) {
        $flags = OBS_DNS_ALL;
        if (!$protocol) {
            $protocol = strtoupper($source);
        }
        print_cli_data("Try discovering host", "{$hostname} through {$protocol}", 3);
        // By first detect hostname is IP or domain name (IPv4/6 == 4/6, hostname == FALSE)
        $ip_version = get_ip_version($hostname);
        if ($ip_version) {
            // Hostname is IPv4/IPv6
            $use_ip = TRUE;
            $ip = $hostname;
        } else {
            $use_ip = FALSE;
            // Add "mydomain" configuration if this resolves, converts switch1 -> switch1.mydomain.com
            if (!empty($config['mydomain']) && isDomainResolves($hostname . '.' . $config['mydomain'], $flags)) {
                $hostname .= '.' . $config['mydomain'];
            }
            // Determine v4 vs v6
            $ip = gethostbyname6($hostname, $flags);
            if ($ip) {
                $ip_version = get_ip_version($ip);
                print_debug("Host {$hostname} resolved as {$ip}");
            } else {
                // No DNS records
                print_debug("Host {$hostname} not resolved, autodiscovery fails.");
                return FALSE;
            }
        }
        if ($ip_version == 6) {
            $flags = $flags ^ OBS_DNS_A;
            // Exclude IPv4
        }
        if (isset($config['autodiscovery']['ping_skip']) && $config['autodiscovery']['ping_skip']) {
            $flags = $flags | OBS_PING_SKIP;
            // Add skip pings flag
        }
        if (match_network($ip, $config['autodiscovery']['ip_nets'])) {
            print_debug("Host {$hostname} ({$ip}) founded inside configured nets, trying to add:");
            // By first check if pingable
            $pingable = isPingable($ip, $flags);
            if (!$pingable && (isset($config['autodiscovery']['ping_skip']) && $config['autodiscovery']['ping_skip'])) {
                $flags = $flags | OBS_PING_SKIP;
                // Add skip pings flag if allowed in config
                $pingable = TRUE;
            }
            if ($pingable) {
                // Check if device duplicated by IP
                $ip = $ip_version == 4 ? $ip : Net_IPv6::uncompress($ip, TRUE);
                $db = dbFetchRow('SELECT D.`hostname` FROM ipv' . $ip_version . '_addresses AS A
                         LEFT JOIN `ports`   AS P ON A.`port_id`   = P.`port_id`
                         LEFT JOIN `devices` AS D ON D.`device_id` = P.`device_id`
                         WHERE D.`disabled` = 0 AND A.`ipv' . $ip_version . '_address` = ?', array($ip));
                if ($db) {
                    print_debug('Already have device ' . $db['hostname'] . " with IP {$ip}");
                    return FALSE;
                }
                // Detect snmp transport, net-snmp needs udp6 for ipv6
                $snmp_transport = $ip_version == 4 ? 'udp' : 'udp6';
                $new_device = detect_device_snmpauth($ip, $snmp_port, $snmp_transport);
                if ($new_device) {
                    if ($use_ip) {
                        // Detect FQDN hostname
                        // by sysName
                        $snmphost = snmp_get($new_device, 'sysName.0', '-Oqv', 'SNMPv2-MIB');
                        if ($snmphost) {
                            $snmp_ip = gethostbyname6($snmphost, $flags);
                        }
                        if ($snmp_ip == $ip) {
                            $hostname = $snmphost;
                        } else {
                            // by PTR
                            $ptr = gethostbyaddr6($ip);
                            if ($ptr) {
                                $ptr_ip = gethostbyname6($ptr, $flags);
                            }
                            if ($ptr && $ptr_ip == $ip) {
                                $hostname = $ptr;
                            } else {
                                if ($config['autodiscovery']['require_hostname']) {
                                    print_debug("Device IP {$ip} does not seem to have FQDN.");
                                    return FALSE;
                                } else {
                                    $hostname = $ip_version == 4 ? $ip : Net_IPv6::compress($hostname, TRUE);
                                    // Always use compressed IPv6 name
                                }
                            }
                        }
                        print_debug("Device IP {$ip} linked to FQDN name: {$hostname}");
                    }
                    $new_device['hostname'] = $hostname;
                    if (!check_device_duplicated($new_device)) {
                        $snmp_v3 = array();
                        if ($new_device['snmp_version'] === 'v3') {
                            $snmp_v3['snmp_authlevel'] = $new_device['snmp_authlevel'];
//.........这里部分代码省略.........

function perform_snmp_scan($net, $force_network, $force_broadcast)
{
    global $stats, $config, $debug, $vdebug;
    echo 'Range: ' . $net->network . '/' . $net->bitmask . PHP_EOL;
    $config['snmp']['timeout'] = 1;
    $config['snmp']['retries'] = 0;
    $config['fping_options']['retries'] = 0;
    $start = ip2long($net->network);
    $end = ip2long($net->broadcast) - 1;
    if ($force_network === true) {
        //Force-scan network address
        d_echo("Forcing network address scan" . PHP_EOL);
        $start = $start - 1;
    }
    if ($force_broadcast === true) {
        //Force-scan broadcast address
        d_echo("Forcing broadcast address scan" . PHP_EOL);
        $end = $end + 1;
    }
    if ($net->bitmask === "31") {
        //Handle RFC3021 /31 prefixes
        $start = ip2long($net->network) - 1;
        $end = ip2long($net->broadcast);
        d_echo("RFC3021 network, hosts " . long2ip($start + 1) . " and " . long2ip($end) . PHP_EOL . PHP_EOL);
    } elseif ($net->bitmask === "32") {
        //Handle single-host /32 prefixes
        $start = ip2long($net->network) - 1;
        $end = $start + 1;
        d_echo("RFC3021 network, hosts " . long2ip($start + 1) . " and " . long2ip($end) . PHP_EOL . PHP_EOL);
    } else {
        d_echo("Network:   " . $net->network . PHP_EOL);
        d_echo("Broadcast: " . $net->broadcast . PHP_EOL . PHP_EOL);
    }
    while ($start++ < $end) {
        $stats['count']++;
        $host = long2ip($start);
        if ($vdebug) {
            echo "Scanning: " . $host . PHP_EOL;
        }
        if (match_network($config['autodiscovery']['nets-exclude'], $host)) {
            if ($vdebug) {
                echo "Excluded by config.php" . PHP_EOL . PHP_EOL;
            } else {
                echo '|';
            }
            continue;
        }
        $test = isPingable($host);
        if ($test['result'] === false) {
            if ($vdebug) {
                echo "Unpingable Device" . PHP_EOL . PHP_EOL;
            } else {
                echo '.';
            }
            continue;
        }
        if (ip_exists($host)) {
            $stats['known']++;
            if ($vdebug) {
                echo "Known Device" . PHP_EOL;
            } else {
                echo '*';
            }
            continue;
        }
        foreach (array('udp', 'tcp') as $transport) {
            try {
                addHost(gethostbyaddr($host), '', $config['snmp']['port'], $transport, $config['distributed_poller_group']);
                $stats['added']++;
                if ($vdebug) {
                    echo "Added Device" . PHP_EOL . PHP_EOL;
                } else {
                    echo '+';
                }
                break;
            } catch (HostExistsException $e) {
                $stats['known']++;
                if ($vdebug) {
                    echo "Known Device" . PHP_EOL . PHP_EOL;
                } else {
                    echo '*';
                }
                break;
            } catch (HostUnreachablePingException $e) {
                if ($vdebug) {
                    echo "Unpingable Device" . PHP_EOL . PHP_EOL;
                } else {
                    echo '.';
                }
                break;
            } catch (HostUnreachableException $e) {
                if ($debug) {
                    print_error($e->getMessage() . " over {$transport}");
                    foreach ($e->getReasons() as $reason) {
                        echo "  {$reason}" . PHP_EOL;
                    }
                }
                if ($transport === 'tcp') {
                    // tried both udp and tcp without success
                    $stats['failed']++;
//.........这里部分代码省略.........

    $where .= " AND I.device_id = '" . $_POST['device_id'] . "'";
}
if ($_POST['interface']) {
    $where .= " AND I.ifDescr LIKE '" . $_POST['interface'] . "'";
}
$sql = "SELECT * FROM `ipv4_addresses` AS A, `ports` AS I, `devices` AS D, `ipv4_networks` AS N WHERE I.interface_id = A.interface_id AND I.device_id = D.device_id AND N.ipv4_network_id = A.ipv4_network_id {$where} ORDER BY A.ipv4_address";
$query = mysql_query($sql);
echo "<tr class=tablehead><th>Device</a></th><th>Interface</th><th>Address</th><th>Description</th></tr>";
$row = 1;
while ($interface = mysql_fetch_array($query)) {
    if ($_POST['address']) {
        list($addy, $mask) = explode("/", $_POST['address']);
        if (!$mask) {
            $mask = "32";
        }
        if (!match_network($addy . "/" . $mask, $interface['ipv4_address'])) {
            $ignore = 1;
        }
    }
    if (!$ignore) {
        if (is_integer($row / 2)) {
            $row_colour = $list_colour_a;
        } else {
            $row_colour = $list_colour_b;
        }
        $speed = humanspeed($interface['ifSpeed']);
        $type = humanmedia($interface['ifType']);
        list($prefix, $length) = explode("/", $interface['ipv4_network']);
        if ($interface['in_errors'] > 0 || $interface['out_errors'] > 0) {
            $error_img = generateiflink($interface, "<img src='images/16/chart_curve_error.png' alt='Interface Errors' border=0>", errors);
        } else {

function DBLogInContest($name, $pass, $contest, $msg = true)
{
    $b = DBGetRow("select * from contesttable where contestnumber={$contest}", 0, null, "DBLogIn(get active contest)");
    if ($b == null) {
        LOGLevel("There is no contest {$contest}.", 0);
        if ($msg) {
            MSGError("There is no contest {$contest}, contact an admin.");
        }
        return false;
    }
    $d = DBSiteInfo($b["contestnumber"], $b["contestlocalsite"], null, false);
    if ($d == null) {
        if ($msg) {
            MSGError("There is no active site, contact an admin.");
        }
        return false;
    }
    $a = DBGetRow("select * from usertable where username='{$name}' and contestnumber=" . $b["contestnumber"] . " and " . "usersitenumber=" . $b["contestlocalsite"], 0, null, "DBLogIn(get user)");
    if ($a == null) {
        if ($msg) {
            LOGLevel("User {$name} tried to log in contest {$contest} but it does not exist.", 2);
            MSGError("User does not exist or incorrect password.");
        }
        return false;
    }
    $a = DBUserInfo($b["contestnumber"], $b["contestlocalsite"], $a['usernumber'], null, false);
    $_SESSION['usertable'] = $a;
    $p = myhash($a["userpassword"] . session_id());
    $_SESSION['usertable']['userpassword'] = $p;
    if ($a["userpassword"] != "" && $p != $pass) {
        LOGLevel("User {$name} tried to log in contest {$contest} but password was incorrect.", 2);
        if ($msg) {
            MSGError("Incorrect password.");
        }
        unset($_SESSION["usertable"]);
        return false;
    }
    if ($d["sitepermitlogins"] == "f" && $a["usertype"] != "admin" && $a["usertype"] != "judge" && $a["usertype"] != "site") {
        LOGLevel("User {$name} tried to login contest {$contest} but logins are denied.", 2);
        if ($msg) {
            MSGError("Logins are not allowed.");
        }
        unset($_SESSION["usertable"]);
        return false;
    }
    if ($a["userenabled"] != "t") {
        LOGLevel("User {$name} tried to log in contest {$contest} but it is disabled.", 2);
        if ($msg) {
            MSGError("User disabled.");
        }
        unset($_SESSION["usertable"]);
        return false;
    }
    $gip = getIP();
    if ($a["userip"] != $gip && $a["userip"] != "" && $a["usertype"] != "score") {
        LOGLevel("User {$name} is using two different IPs: " . $a["userip"] . "(" . dateconv($a["userlastlogin"]) . ") and " . $gip, 1);
        if ($msg && $a["usertype"] != "admin") {
            MSGError("You are using two distinct IPs. Admin notified.");
        }
    }
    if ($a["userpermitip"] != "") {
        $ips = explode(';', $a["userpermitip"]);
        $gips = explode(';', $gip);
        if (count($gips) < count($ips)) {
            IntrusionNotify("Invalid IP: " . $gip);
            ForceLoad("index.php");
        }
        for ($ipss = 0; $ipss < count($ips); $ipss++) {
            $gipi = $gips[$ipss];
            $ipi = $ips[$ipss];
            if (!match_network($ipi, $gipi)) {
                IntrusionNotify("Invalid IP: " . $gip);
                ForceLoad("index.php");
            }
        }
    }
    $c = DBConnect();
    $t = time();
    if ($a["usertype"] == "team" && $a["usermultilogin"] != "t" && $a["userpermitip"] == "") {
        $r = DBExec($c, "update usertable set userip='" . $gip . "', updatetime=" . time() . ", userpermitip='" . $gip . "'," . "userlastlogin={$t}, usersession='" . session_id() . "' where username='{$name}' and contestnumber=" . $b["contestnumber"] . " and usersitenumber=" . $b["contestlocalsite"], "DBLogIn(update session)");
    } else {
        DBExec($c, "begin work");
        $sql = "update usertable set usersessionextra='" . session_id() . "' where username='{$name}' and contestnumber=" . $b["contestnumber"] . " and usersitenumber=" . $b["contestlocalsite"] . " and (usersessionextra='' or userip != '" . $gip . "' or userlastlogin<=" . ($t - 86400) . ")";
        DBExec($c, $sql);
        DBExec($c, "update usertable set userip='" . $gip . "', updatetime=" . time() . ", userlastlogin={$t}, " . "usersession='" . session_id() . "' where username='{$name}' and contestnumber=" . $b["contestnumber"] . " and usersitenumber=" . $b["contestlocalsite"], "DBLogIn(update user)");
        if ($name == 'admin') {
            list($clockstr, $clocktime) = siteclock();
            if ($clocktime < -600) {
                DBExec($c, "update contesttable set contestunlockkey='' where contestnumber=" . $b["contestnumber"], "DBLogInContest(update contest)");
            }
        }
        DBExec($c, "commit work");
    }
    LOGLevel("User {$name} authenticated (" . $gip . ")", 2);
    return $a;
}