mirror of
https://github.com/librenms/librenms.git
synced 2024-09-21 10:28:13 +00:00
938 lines
30 KiB
PHP
938 lines
30 KiB
PHP
<?php
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// If anybody has again the idea to implement the PHP internal library calls,
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// be aware that it was tried and banned by lead dev Adam
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//
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// TRUE STORY. THAT SHIT IS WHACK. -- adama.
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function string_to_oid($string) {
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$oid = strlen($string);
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for($i = 0; $i != strlen($string); $i++) {
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$oid .= ".".ord($string[$i]);
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}
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return $oid;
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}
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function prep_snmp_setting($device, $setting) {
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global $config;
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if (is_numeric($device[$setting]) && $device[$setting] > 0) {
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return $device[$setting];
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} elseif (isset($config['snmp'][$setting])) {
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return $config['snmp'][$setting];
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}
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}
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function mibdir($mibdir) {
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global $config;
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return " -M " . ($mibdir ? $mibdir : $config['mibdir']);
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}
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function snmp_get_multi($device, $oids, $options = "-OQUs", $mib = NULL, $mibdir = NULL) {
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global $debug,$config,$runtime_stats,$mibs_loaded;
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// populate timeout & retries values from configuration
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) $device['transport'] = "udp";
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$cmd = $config['snmpget'];
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$cmd .= snmp_gen_auth ($device);
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if ($options) $cmd .= " " . $options;
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if ($mib) $cmd .= " -m " . $mib;
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$cmd .= mibdir($mibdir);
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port'];
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$cmd .= " ".$oids;
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$runtime_stats['snmpget']++;
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$array = array();
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foreach (explode("\n", $data) as $entry) {
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list($oid,$value) = explode("=", $entry, 2);
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$oid = trim($oid); $value = trim($value);
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list($oid, $index) = explode(".", $oid,2);
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if (!strstr($value, "at this OID") && isset($oid) && isset($index)) {
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$array[$index][$oid] = $value;
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}
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}
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return $array;
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}
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function snmp_get($device, $oid, $options = NULL, $mib = NULL, $mibdir = NULL) {
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global $debug,$config,$runtime_stats,$mibs_loaded;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) $device['transport'] = "udp";
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if (strstr($oid,' ')) {
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echo(report_this_text("snmp_get called for multiple OIDs: $oid"));
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}
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$cmd = $config['snmpget'];
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$cmd .= snmp_gen_auth ($device);
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if ($options) $cmd .= " " . $options;
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if ($mib) $cmd .= " -m " . $mib;
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$cmd .= mibdir($mibdir);
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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$cmd .= " " . $device['transport'] . ":" . $device['hostname'] . ":" . $device['port'];
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$cmd .= " " . $oid;
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$runtime_stats['snmpget']++;
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if (is_string($data) && (preg_match("/(No Such Instance|No Such Object|No more variables left|Authentication failure)/i", $data))) {
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return false;
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} elseif ($data) {
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return $data;
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} else {
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return false;
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}
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}
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function snmp_walk($device, $oid, $options = NULL, $mib = NULL, $mibdir = NULL) {
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global $debug,$config,$runtime_stats;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) $device['transport'] = "udp";
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if ($device['snmpver'] == 'v1' || $config['os'][$device['os']]['nobulk']) {
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$snmpcommand = $config['snmpwalk'];
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} else {
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$snmpcommand = $config['snmpbulkwalk'];
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}
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$cmd = $snmpcommand;
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$cmd .= snmp_gen_auth ($device);
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if ($options) $cmd .= " $options ";
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if ($mib) $cmd .= " -m $mib";
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$cmd .= mibdir($mibdir);
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$oid;
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$data = str_replace("\"", "", $data);
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if (is_string($data) && (preg_match("/No Such (Object|Instance)/i", $data))) {
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$data = false;
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} else {
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if (preg_match("/No more variables left in this MIB View \(It is past the end of the MIB tree\)$/",$data)) {
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# Bit ugly :-(
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$d_ex = explode("\n",$data);
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unset($d_ex[count($d_ex)-1]);
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$data = implode("\n",$d_ex);
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}
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}
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$runtime_stats['snmpwalk']++;
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return $data;
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}
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function snmpwalk_cache_cip($device, $oid, $array = array(), $mib = 0) {
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global $config;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) $device['transport'] = "udp";
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if ($device['snmpver'] == 'v1' || $config['os'][$device['os']]['nobulk']) {
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$snmpcommand = $config['snmpwalk'];
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} else {
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$snmpcommand = $config['snmpbulkwalk'];
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}
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$cmd = $snmpcommand;
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$cmd .= snmp_gen_auth ($device);
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$cmd .= " -O snQ";
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if ($mib) $cmd .= " -m $mib";
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$cmd .= mibdir(null);
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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$cmd .= " " . $device['transport'] . ":" . $device['hostname'] . ":" . $device['port'] . " " . $oid;
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$device_id = $device['device_id'];
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#echo("Caching: $oid\n");
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foreach (explode("\n", $data) as $entry) {
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list ($this_oid, $this_value) = preg_split("/=/", $entry);
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$this_oid = trim($this_oid);
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$this_value = trim($this_value);
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$this_oid = substr($this_oid, 30);
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list($ifIndex, $dir, $a, $b, $c, $d, $e, $f) = explode(".", $this_oid);
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$h_a = zeropad(dechex($a));
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$h_b = zeropad(dechex($b));
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$h_c = zeropad(dechex($c));
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$h_d = zeropad(dechex($d));
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$h_e = zeropad(dechex($e));
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$h_f = zeropad(dechex($f));
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$mac = "$h_a$h_b$h_c$h_d$h_e$h_f";
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if ($dir == "1") {
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$dir = "input";
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} elseif ($dir == "2") {
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$dir = "output";
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}
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if ($mac && $dir) {
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$array[$ifIndex][$mac][$oid][$dir] = $this_value;
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}
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}
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return $array;
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}
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function snmp_cache_ifIndex($device) {
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// FIXME: this is not yet using our own snmp_*
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global $config;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) $device['transport'] = "udp";
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if ($device['snmpver'] == 'v1' || $config['os'][$device['os']]['nobulk']) {
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$snmpcommand = $config['snmpwalk'];
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} else {
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$snmpcommand = $config['snmpbulkwalk'];
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}
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$cmd = $snmpcommand;
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$cmd .= snmp_gen_auth ($device);
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$cmd .= " -O Qs";
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$cmd .= mibdir(null);
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$cmd .= " -m IF-MIB ifIndex";
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$device_id = $device['device_id'];
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foreach (explode("\n", $data) as $entry) {
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list ($this_oid, $this_value) = preg_split("/=/", $entry);
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list ($this_oid, $this_index) = explode(".", $this_oid, 2);
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$this_index = trim($this_index);
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$this_oid = trim($this_oid);
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$this_value = trim($this_value);
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if (!strstr($this_value, "at this OID") && $this_index) {
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$array[] = $this_value;
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}
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}
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return $array;
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}
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function snmpwalk_cache_oid($device, $oid, $array, $mib = NULL, $mibdir = NULL, $snmpflags = "-OQUs") {
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$data = snmp_walk($device, $oid, $snmpflags, $mib, $mibdir);
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foreach (explode("\n", $data) as $entry) {
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list($oid,$value) = explode("=", $entry, 2);
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$oid = trim($oid); $value = trim($value);
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list($oid, $index) = explode(".", $oid, 2);
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if (!strstr($value, "at this OID") && isset($oid) && isset($index)) {
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$array[$index][$oid] = $value;
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}
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}
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return $array;
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}
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// just like snmpwalk_cache_oid except that it returns the numerical oid as the index
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// this is useful when the oid is indexed by the mac address and snmpwalk would
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// return periods (.) for non-printable numbers, thus making many different indexes appear
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// to be the same.
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function snmpwalk_cache_oid_num($device, $oid, $array, $mib = NULL, $mibdir = NULL) {
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return snmpwalk_cache_oid($device, $oid, $array, $mib, $mibdir, $snmpflags = "-OQUn");
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}
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function snmpwalk_cache_multi_oid($device, $oid, $array, $mib = NULL, $mibdir = NULL) {
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global $cache;
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if (!(is_array($cache['snmp'][$device['device_id']]) && array_key_exists($oid,$cache['snmp'][$device['device_id']]))) {
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$data = snmp_walk($device, $oid, "-OQUs", $mib, $mibdir);
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foreach (explode("\n", $data) as $entry) {
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list($r_oid,$value) = explode("=", $entry, 2);
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$r_oid = trim($r_oid); $value = trim($value);
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$oid_parts = explode(".", $r_oid);
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$r_oid = $oid_parts['0'];
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$index = $oid_parts['1'];
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if (isset($oid_parts['2'])) $index .= ".".$oid_parts['2'];
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if (isset($oid_parts['3'])) $index .= ".".$oid_parts['3'];
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if (isset($oid_parts['4'])) $index .= ".".$oid_parts['4'];
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if (isset($oid_parts['5'])) $index .= ".".$oid_parts['5'];
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if (isset($oid_parts['6'])) $index .= ".".$oid_parts['6'];
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if (!strstr($value, "at this OID") && isset($r_oid) && isset($index)) {
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$array[$index][$r_oid] = $value;
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}
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}
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$cache['snmp'][$device['device_id']][$oid] = $array;
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}
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return $cache['snmp'][$device['device_id']][$oid];
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}
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function snmpwalk_cache_double_oid($device, $oid, $array, $mib = NULL, $mibdir = NULL)
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{
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$data = snmp_walk($device, $oid, "-OQUs", $mib, $mibdir);
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foreach (explode("\n", $data) as $entry) {
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list($oid,$value) = explode("=", $entry, 2);
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$oid = trim($oid); $value = trim($value);
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list($oid, $first, $second) = explode(".", $oid);
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if (!strstr($value, "at this OID") && isset($oid) && isset($first) && isset($second)) {
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$double = $first.".".$second;
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$array[$double][$oid] = $value;
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}
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}
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return $array;
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}
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function snmpwalk_cache_triple_oid($device, $oid, $array, $mib = NULL, $mibdir = NULL) {
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$data = snmp_walk($device, $oid, "-OQUs", $mib, $mibdir);
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foreach (explode("\n", $data) as $entry) {
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list($oid,$value) = explode("=", $entry, 2);
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$oid = trim($oid); $value = trim($value);
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list($oid, $first, $second, $third) = explode(".", $oid);
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if (!strstr($value, "at this OID") && isset($oid) && isset($first) && isset($second)) {
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$index = $first.".".$second.".".$third;
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$array[$index][$oid] = $value;
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}
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}
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return $array;
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}
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function snmpwalk_cache_twopart_oid($device, $oid, $array, $mib = 0) {
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global $config;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) {
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$device['transport'] = "udp";
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}
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if ($device['snmpver'] == 'v1' || $config['os'][$device['os']]['nobulk']) {
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$snmpcommand = $config['snmpwalk'];
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} else {
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$snmpcommand = $config['snmpbulkwalk'];
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}
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$cmd = $snmpcommand;
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$cmd .= snmp_gen_auth ($device);
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$cmd .= " -O QUs";
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$cmd .= mibdir(null);
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if ($mib) $cmd .= " -m $mib";
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$oid;
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$device_id = $device['device_id'];
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foreach (explode("\n", $data) as $entry) {
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list($oid,$value) = explode("=", $entry, 2);
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$oid = trim($oid);
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$value = trim($value);
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$value = str_replace("\"", "", $value);
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list($oid, $first, $second) = explode(".", $oid);
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if (!strstr($value, "at this OID") && isset($oid) && isset($first) && isset($second)) {
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$array[$first][$second][$oid] = $value;
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}
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}
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return $array;
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}
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function snmpwalk_cache_threepart_oid($device, $oid, $array, $mib = 0) {
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global $config, $debug;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) {
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$device['transport'] = "udp";
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}
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if ($device['snmpver'] == 'v1' || $config['os'][$device['os']]['nobulk']) {
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$snmpcommand = $config['snmpwalk'];
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} else {
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$snmpcommand = $config['snmpbulkwalk'];
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}
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$cmd = $snmpcommand;
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$cmd .= snmp_gen_auth ($device);
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$cmd .= " -O QUs";
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$cmd .= mibdir(null);
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if ($mib) $cmd .= " -m $mib";
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
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$cmd .= isset($retries) ? " -r " . $retries : "";
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$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$oid;
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if (!$debug) $cmd .= " 2>/dev/null";
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$data = trim(external_exec($cmd));
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$device_id = $device['device_id'];
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foreach (explode("\n", $data) as $entry) {
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list($oid,$value) = explode("=", $entry, 2);
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$oid = trim($oid);
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$value = trim($value);
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$value = str_replace("\"", "", $value);
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list($oid, $first, $second, $third) = explode(".", $oid);
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if ($debug) echo("$entry || $oid || $first || $second || $third\n");
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if (!strstr($value, "at this OID") && isset($oid) && isset($first) && isset($second) && isset($third)) {
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$array[$first][$second][$third][$oid] = $value;
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}
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}
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return $array;
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}
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function snmp_cache_slotport_oid($oid, $device, $array, $mib = 0)
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{
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global $config;
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$timeout = prep_snmp_setting($device, "timeout");
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$retries = prep_snmp_setting($device, "retries");
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if (!isset($device['transport'])) {
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$device['transport'] = "udp";
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}
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if ($device['snmpver'] == 'v1' || $config['os'][$device['os']]['nobulk']) {
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$snmpcommand = $config['snmpwalk'];
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} else {
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$snmpcommand = $config['snmpbulkwalk'];
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}
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$cmd = $snmpcommand;
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$cmd .= snmp_gen_auth ($device);
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$cmd .= " -O QUs";
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if ($mib) $cmd .= " -m $mib";
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$cmd .= mibdir(null);
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$cmd .= isset($timeout) ? " -t " . $timeout : "";
|
|
$cmd .= isset($retries) ? " -r " . $retries : "";
|
|
|
|
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$oid;
|
|
|
|
if (!$debug) $cmd .= " 2>/dev/null";
|
|
|
|
$data = trim(external_exec($cmd));
|
|
$device_id = $device['device_id'];
|
|
|
|
foreach (explode("\n", $data) as $entry) {
|
|
$entry = str_replace($oid.".", "", $entry);
|
|
list($slotport, $value) = explode("=", $entry, 2);
|
|
$slotport = trim($slotport); $value = trim($value);
|
|
if ($array[$slotport]['ifIndex']) {
|
|
$ifIndex = $array[$slotport]['ifIndex'];
|
|
$array[$ifIndex][$oid] = $value;
|
|
}
|
|
}
|
|
|
|
return $array;
|
|
}
|
|
|
|
function snmp_cache_oid($oid, $device, $array, $mib = 0) {
|
|
$array = snmpwalk_cache_oid($device, $oid, $array, $mib);
|
|
return $array;
|
|
}
|
|
|
|
function snmp_cache_port_oids($oids, $port, $device, $array, $mib=0) {
|
|
global $config;
|
|
|
|
$timeout = prep_snmp_setting($device, "timeout");
|
|
$retries = prep_snmp_setting($device, "retries");
|
|
|
|
if (!isset($device['transport'])) {
|
|
$device['transport'] = "udp";
|
|
}
|
|
|
|
foreach ($oids as $oid) {
|
|
$string .= " $oid.$port";
|
|
}
|
|
|
|
$cmd = $config['snmpget'];
|
|
$cmd .= snmp_gen_auth ($device);
|
|
|
|
$cmd .= " -O vq";
|
|
|
|
$cmd .= isset($timeout) ? " -t " . $timeout : "";
|
|
$cmd .= isset($retries) ? " -r " . $retries : "";
|
|
|
|
$cmd .= mibdir(null);
|
|
if ($mib) $cmd .= " -m $mib";
|
|
|
|
$cmd .= " -t " . $timeout . " -r " . $retries;
|
|
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$string;
|
|
|
|
if (!$debug) $cmd .= " 2>/dev/null";
|
|
|
|
$data = trim(external_exec($cmd));
|
|
$x=0;
|
|
$values = explode("\n", $data);
|
|
#echo("Caching: ifIndex $port\n");
|
|
foreach ($oids as $oid) {
|
|
if (!strstr($values[$x], "at this OID")) {
|
|
$array[$port][$oid] = $values[$x];
|
|
}
|
|
$x++;
|
|
}
|
|
|
|
return $array;
|
|
}
|
|
|
|
function snmp_cache_portIfIndex($device, $array) {
|
|
global $config;
|
|
|
|
$timeout = prep_snmp_setting($device, "timeout");
|
|
$retries = prep_snmp_setting($device, "retries");
|
|
|
|
if (!isset($device['transport'])) {
|
|
$device['transport'] = "udp";
|
|
}
|
|
|
|
$cmd = $config['snmpwalk'];
|
|
$cmd .= snmp_gen_auth ($device);
|
|
|
|
$cmd .= " -CI -m CISCO-STACK-MIB -O q";
|
|
$cmd .= mibdir(null);
|
|
|
|
$cmd .= isset($timeout) ? " -t " . $timeout : "";
|
|
$cmd .= isset($retries) ? " -r " . $retries : "";
|
|
|
|
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." portIfIndex";
|
|
$output = trim(external_exec($cmd));
|
|
$device_id = $device['device_id'];
|
|
|
|
foreach (explode("\n", $output) as $entry) {
|
|
$entry = str_replace("CISCO-STACK-MIB::portIfIndex.", "", $entry);
|
|
list($slotport, $ifIndex) = explode(" ", $entry, 2);
|
|
if ($slotport && $ifIndex) {
|
|
$array[$ifIndex]['portIfIndex'] = $slotport;
|
|
$array[$slotport]['ifIndex'] = $ifIndex;
|
|
}
|
|
}
|
|
|
|
return $array;
|
|
}
|
|
|
|
function snmp_cache_portName($device, $array) {
|
|
global $config;
|
|
|
|
$timeout = prep_snmp_setting($device, "timeout");
|
|
$retries = prep_snmp_setting($device, "retries");
|
|
|
|
if (!isset($device['transport'])) {
|
|
$device['transport'] = "udp";
|
|
}
|
|
|
|
$cmd = $config['snmpwalk'];
|
|
$cmd .= snmp_gen_auth ($device);
|
|
|
|
$cmd .= " -CI -m CISCO-STACK-MIB -O Qs";
|
|
$cmd .= mibdir(null);
|
|
|
|
$cmd .= isset($timeout) ? " -t " . $timeout : "";
|
|
$cmd .= isset($retries) ? " -r " . $retries : "";
|
|
|
|
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." portName";
|
|
$output = trim(external_exec($cmd));
|
|
$device_id = $device['device_id'];
|
|
#echo("Caching: portName\n");
|
|
|
|
foreach (explode("\n", $output) as $entry) {
|
|
$entry = str_replace("portName.", "", $entry);
|
|
list($slotport, $portName) = explode("=", $entry, 2);
|
|
$slotport = trim($slotport); $portName = trim($portName);
|
|
if ($array[$slotport]['ifIndex']) {
|
|
$ifIndex = $array[$slotport]['ifIndex'];
|
|
$array[$slotport]['portName'] = $portName;
|
|
$array[$ifIndex]['portName'] = $portName;
|
|
}
|
|
}
|
|
|
|
return $array;
|
|
}
|
|
|
|
function snmp_gen_auth (&$device) {
|
|
global $debug;
|
|
|
|
$cmd = "";
|
|
|
|
if ($device['snmpver'] === "v3") {
|
|
$cmd = " -v3 -n \"\" -l " . $device['authlevel'];
|
|
|
|
if ($device['authlevel'] === "noAuthNoPriv") {
|
|
// We have to provide a username anyway (see Net-SNMP doc)
|
|
// FIXME: There are two other places this is set - why are they ignored here?
|
|
$cmd .= " -u root";
|
|
} elseif ($device['authlevel'] === "authNoPriv") {
|
|
$cmd .= " -a " . $device['authalgo'];
|
|
$cmd .= " -A \"" . $device['authpass'] . "\"";
|
|
$cmd .= " -u " . $device['authname'];
|
|
} elseif ($device['authlevel'] === "authPriv") {
|
|
$cmd .= " -a " . $device['authalgo'];
|
|
$cmd .= " -A \"" . $device['authpass'] . "\"";
|
|
$cmd .= " -u " . $device['authname'];
|
|
$cmd .= " -x " . $device['cryptoalgo'];
|
|
$cmd .= " -X \"" . $device['cryptopass'] . "\"";
|
|
} else {
|
|
if ($debug) {
|
|
print "DEBUG: " . $device['snmpver'] ." : Unsupported SNMPv3 AuthLevel (wtf have you done ?)\n";
|
|
}
|
|
}
|
|
} elseif ($device['snmpver'] === "v2c" or $device['snmpver'] === "v1") {
|
|
$cmd = " -" . $device['snmpver'];
|
|
$cmd .= " -c " . $device['community'];
|
|
} else {
|
|
if ($debug) print "DEBUG: " . $device['snmpver'] ." : Unsupported SNMP Version (wtf have you done ?)\n";
|
|
}
|
|
|
|
if ($debug) print "DEBUG: SNMP Auth options = $cmd\n";
|
|
|
|
return $cmd;
|
|
}
|
|
|
|
/*
|
|
* Translate the given MIB into a vaguely useful PHP array. Each keyword becomes an array index.
|
|
*
|
|
* Example:
|
|
* snmptranslate -Td -On -M mibs -m RUCKUS-ZD-SYSTEM-MIB RUCKUS-ZD-SYSTEM-MIB::ruckusZDSystemStatsNumSta
|
|
* .1.3.6.1.4.1.25053.1.2.1.1.1.15.30
|
|
* ruckusZDSystemStatsAllNumSta OBJECT-TYPE
|
|
* -- FROM RUCKUS-ZD-SYSTEM-MIB
|
|
* SYNTAX Unsigned32
|
|
* MAX-ACCESS read-only
|
|
* STATUS current
|
|
* DESCRIPTION "Number of All client devices"
|
|
* ::= { iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) ruckusRootMIB(25053) ruckusObjects(1) ruckusZD(2) ruckusZDSystemModule(1) ruckusZDSystemMIB(1) ruckusZDSystemObjects(1)
|
|
* ruckusZDSystemStats(15) 30 }
|
|
*/
|
|
function snmp_mib_parse($oid, $mib, $module, $mibdir = null) {
|
|
global $debug;
|
|
|
|
$fulloid = explode(".", $oid);
|
|
$lastpart = end($fulloid);
|
|
|
|
$cmd = "snmptranslate -Td -On";
|
|
$cmd .= mibdir($mibdir);
|
|
$cmd .= " -m ".$module." ".$module."::";
|
|
$cmd .= $lastpart;
|
|
|
|
$result = array();
|
|
$lines = preg_split('/\n+/', trim(shell_exec($cmd)));
|
|
foreach ($lines as $l) {
|
|
$f = preg_split('/\s+/', trim($l));
|
|
// first line is all numeric
|
|
if (preg_match('/^[\d.]+$/', $f[0])) {
|
|
$result['oid'] = $f[0];
|
|
continue;
|
|
}
|
|
// then the name of the object type
|
|
if ($f[1] && $f[1] == "OBJECT-TYPE") {
|
|
$result['object_type'] = $f[0];
|
|
$result['shortname'] = str_replace($mib, '', $f[0]);
|
|
$result['dsname'] = name_shorten($f[0], $mib);
|
|
continue;
|
|
}
|
|
// then the other data elements
|
|
if ($f[0] == "--" && $f[1] == "FROM") {
|
|
$result['module'] = $f[2];
|
|
continue;
|
|
}
|
|
if ($f[0] == "MAX-ACCESS") {
|
|
$result['max_access'] = $f[1];
|
|
continue;
|
|
}
|
|
if ($f[0] == "STATUS") {
|
|
$result[strtolower($f[0])] = $f[1];
|
|
continue;
|
|
}
|
|
if ($f[0] == "SYNTAX") {
|
|
$result[strtolower($f[0])] = $f[1];
|
|
continue;
|
|
}
|
|
if ($f[0] == "DESCRIPTION") {
|
|
$desc = explode('"', $l);
|
|
if ($desc[1]) {
|
|
$str = preg_replace('/^[\s.]*/', '', $desc[1]);
|
|
$str = preg_replace('/[\s.]*$/', '', $str);
|
|
$result[strtolower($f[0])] = $str;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
// The main mib entry doesn't have any useful data in it - only return items that have the syntax specified.
|
|
if (isset($result['syntax']) && isset($result['object_type'])) {
|
|
$result['mib'] = $mib;
|
|
return $result;
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Walks through the given MIB module, looking for the given MIB.
|
|
* NOTE: different from snmp walk - this doesn't touch the device.
|
|
* NOTE: There's probably a better way to do this with snmptranslate.
|
|
*
|
|
* Example:
|
|
* snmptranslate -Ts -M mibs -m RUCKUS-ZD-SYSTEM-MIB | grep ruckusZDSystemStats
|
|
* .iso.org.dod.internet.private.enterprises.ruckusRootMIB.ruckusObjects.ruckusZD.ruckusZDSystemModule.ruckusZDSystemMIB.ruckusZDSystemObjects.ruckusZDSystemStats
|
|
* .iso.org.dod.internet.private.enterprises.ruckusRootMIB.ruckusObjects.ruckusZD.ruckusZDSystemModule.ruckusZDSystemMIB.ruckusZDSystemObjects.ruckusZDSystemStats.ruckusZDSystemStatsNumAP
|
|
* .iso.org.dod.internet.private.enterprises.ruckusRootMIB.ruckusObjects.ruckusZD.ruckusZDSystemModule.ruckusZDSystemMIB.ruckusZDSystemObjects.ruckusZDSystemStats.ruckusZDSystemStatsNumSta
|
|
* ...
|
|
*/
|
|
function snmp_mib_walk($mib, $module, $mibdir = null) {
|
|
$cmd = "snmptranslate -Ts";
|
|
$cmd .= mibdir($mibdir);
|
|
$cmd .= " -m ".$module;
|
|
$result = array();
|
|
$data = preg_split('/\n+/', shell_exec($cmd));
|
|
foreach ($data as $oid) {
|
|
// only include oids which are part of this mib
|
|
if (strstr($oid, $mib)) {
|
|
$obj = snmp_mib_parse($oid, $mib, $module, $mibdir);
|
|
if ($obj) {
|
|
$result[] = $obj;
|
|
}
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/*
|
|
* @return an array containing all of the mib objects, keyed by object-type;
|
|
* returns an empty array if something goes wrong.
|
|
*/
|
|
function snmp_mib_load($mib, $module, $mibdir = null) {
|
|
$mibs = array();
|
|
foreach (snmp_mib_walk($mib, $module, $mibdir) as $obj) {
|
|
$mibs[$obj['object_type']] = $obj;
|
|
}
|
|
return $mibs;
|
|
}
|
|
|
|
/*
|
|
* Turn the given oid (name or numeric value) into a MODULE::mib name.
|
|
* @return an array consisting of the module and mib names, or null if no matching MIB is found.
|
|
* Example:
|
|
* snmptranslate -m all -M mibs .1.3.6.1.4.1.8072.3.2.10 2>/dev/null
|
|
* NET-SNMP-TC::linux
|
|
*/
|
|
function snmp_translate($oid, $module, $mibdir = null) {
|
|
if ($module !== "all") {
|
|
$oid = "$module::$oid";
|
|
}
|
|
$cmd = "snmptranslate" . mibdir($mibdir);
|
|
$cmd .= " -m $module $oid"; // load all the MIBs looking for our object
|
|
$cmd .= " 2>/dev/null"; // ignore invalid MIBs
|
|
|
|
$lines = preg_split('/\n+/', external_exec($cmd));
|
|
if (empty($lines)) {
|
|
d_echo("No results from snmptranslate\n");
|
|
return null;
|
|
}
|
|
|
|
$matches = array();
|
|
if (!preg_match('/(.*)::(.*)/', $lines[0], $matches)) {
|
|
d_echo("This doesn't look like a MIB: $lines[0]\n");
|
|
return null;
|
|
}
|
|
|
|
d_echo("SNMP translated: $module::$oid -> $matches[1]::$matches[2]\n");
|
|
return array($matches[1], $matches[2]);
|
|
}
|
|
|
|
/*
|
|
* check if the type of the oid is a numeric type, and if so,
|
|
* @return the name of RRD type that is best suited to saving it
|
|
*/
|
|
function oid_rrd_type($oid, $mibdef) {
|
|
if (!isset($mibdef[$oid])) {
|
|
return false;
|
|
}
|
|
|
|
switch ($mibdef[$oid]['syntax']) {
|
|
case 'OCTET':
|
|
case 'IpAddress':
|
|
return false;
|
|
|
|
case 'TimeTicks':
|
|
// Need to find a way to flag that this should be parsed
|
|
//return 'COUNTER';
|
|
return false;
|
|
|
|
case 'Counter64':
|
|
return 'COUNTER:600:0:U';
|
|
|
|
case 'Unsigned32':
|
|
return 'GAUGE:600:U:U';
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Construct a graph names for use in the database.
|
|
* Tag each as in use on this device in &$graphs.
|
|
* Update the database with graph definitions as needed.
|
|
* We don't include the index in the graph name - that is handled at display time.
|
|
*/
|
|
function tag_graphs($mibname, $oids, $mibdef, &$graphs) {
|
|
foreach ($oids as $index => $array) {
|
|
foreach ($array as $oid => $val) {
|
|
$graphname = $mibname."-".$mibdef[$oid]['shortname'];
|
|
$graphs[$graphname] = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Ensure a graph_type definition exists in the database for the entities in this MIB
|
|
*/
|
|
function update_mib_graph_types($mibname, $oids, $mibdef, $graphs) {
|
|
$seengraphs = array();
|
|
|
|
// Get the list of graphs currently in the database
|
|
// FIXME: there's probably a more efficient way to do this
|
|
foreach (dbFetch("SELECT DISTINCT `graph_subtype` FROM `graph_types` WHERE `graph_subtype` LIKE ?", array("$mibname-%")) as $graph) {
|
|
$seengraphs[$graph['graph_subtype']] = true;
|
|
}
|
|
|
|
foreach ($oids as $index => $array) {
|
|
$i = 1;
|
|
foreach ($array as $oid => $val) {
|
|
$graphname = "$mibname-".$mibdef[$oid]['shortname'];
|
|
|
|
// add the graph if it's not in the database already
|
|
if ($graphs[$graphname] && !$seengraphs[$graphname]) {
|
|
// construct a graph definition based on the MIB definition
|
|
$graphdef = array();
|
|
$graphdef['graph_type'] = "device";
|
|
$graphdef['graph_subtype'] = $graphname;
|
|
$graphdef['graph_section'] = "mib";
|
|
$graphdef['graph_descr'] = $mibdef[$oid]['description'];
|
|
$graphdef['graph_order'] = $i++;
|
|
// TODO: add colours, unit_text, and ds
|
|
|
|
// add graph to the database
|
|
dbInsert($graphdef, 'graph_types');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Save all of the measurable oids for the device in their own RRDs.
|
|
*/
|
|
function save_mibs($device, $mibname, $oids, $mibdef, &$graphs) {
|
|
$usedoids = array();
|
|
foreach ($oids as $index => $array) {
|
|
foreach ($array as $oid => $val) {
|
|
$type = oid_rrd_type($oid, $mibdef);
|
|
if ($type === false) {
|
|
continue;
|
|
}
|
|
$usedoids[$index][$oid] = $val;
|
|
rrd_create_update(
|
|
$device,
|
|
array($mibname, $mibdef[$oid]['shortname'], $index),
|
|
array("DS:".$mibdef[$oid]['dsname'].":$type"),
|
|
"N:$val"
|
|
);
|
|
}
|
|
}
|
|
tag_graphs($mibname, $usedoids, $mibdef, $graphs);
|
|
update_mib_graph_types($mibname, $usedoids, $mibdef, $graphs);
|
|
}
|
|
|
|
/*
|
|
* Take a list of MIB name => module pairs.
|
|
* Validate MIBs and poll based on the results.
|
|
*/
|
|
function poll_mibs($list, $device, &$graphs) {
|
|
if (!is_dev_attrib_enabled($device, "poll_mib")) {
|
|
d_echo("MIB module disabled for ".$device['hostname']."\n");
|
|
return;
|
|
}
|
|
$mibdefs = array();
|
|
echo("MIB-based polling:");
|
|
d_echo("\n");
|
|
|
|
foreach ($list as $name => $module) {
|
|
$translated = snmp_translate($name, $module);
|
|
if ($translated) {
|
|
echo(" $module::$name");
|
|
d_echo("\n");
|
|
$mod = $translated[0];
|
|
$nam = $translated[1];
|
|
$mibdefs[$nam] = snmp_mib_load($nam, $mod);
|
|
$oids = snmpwalk_cache_oid($device, $nam, array(), $mod, null, "-OQUsb");
|
|
d_print_r($oids);
|
|
save_mibs($device, $nam, $oids, $mibdefs[$nam], $graphs);
|
|
} else {
|
|
d_echo("MIB: no match for $module::$name\n");
|
|
}
|
|
}
|
|
d_echo("Done MIB-based polling");
|
|
echo("\n");
|
|
}
|
|
|
|
?>
|