function cacti_snmp_walk($hostname, $community, $oid, $version, $username, $password, $auth_proto, $priv_pass, $priv_proto, $context, $port = 161, $timeout = 500, $retries = 0, $max_oids = 10, $method = SNMP_VALUE_LIBRARY, $environ = SNMP_POLLER)
{
global $config, $banned_snmp_strings;
$snmp_oid_included = true;
$snmp_auth = '';
$snmp_array = array();
$temp_array = array();
/* determine default retries */
if ($retries == 0 || !is_numeric($retries)) {
$retries = read_config_option('snmp_retries');
if ($retries == '') {
$retries = 3;
}
}
/* do not attempt to poll invalid combinations */
if ($version == 0 || !is_numeric($version) || !is_numeric($max_oids) || !is_numeric($port) || !is_numeric($retries) || !is_numeric($timeout) || $community == '' && $version != 3) {
return array();
}
$path_snmpbulkwalk = read_config_option('path_snmpbulkwalk');
if (snmp_get_method($version) == SNMP_METHOD_PHP && (!strlen($context) || $version != 3) && ($version == 1 || version_compare(phpversion(), '5.1') >= 0 || !file_exists($path_snmpbulkwalk))) {
/* make sure snmp* is verbose so we can see what types of data
we are getting back */
/* force php to return numeric oid's */
cacti_oid_numeric_format();
snmp_set_quick_print(0);
/* set the output format to numeric */
snmp_set_valueretrieval($method);
if ($version == '1') {
$temp_array = @snmprealwalk("{$hostname}:{$port}", "{$community}", "{$oid}", $timeout * 1000, $retries);
} elseif ($version == '2') {
$temp_array = @snmp2_real_walk("{$hostname}:{$port}", "{$community}", "{$oid}", $timeout * 1000, $retries);
} else {
if ($priv_proto == '[None]') {
$proto = 'authNoPriv';
$priv_proto = '';
} else {
$proto = 'authPriv';
}
$temp_array = @snmp3_real_walk("{$hostname}:{$port}", "{$username}", $proto, $auth_proto, "{$password}", $priv_proto, "{$priv_pass}", "{$oid}", $timeout * 1000, $retries);
}
if ($temp_array === false) {
cacti_log("WARNING: SNMP Walk Timeout for Host:'{$hostname}', and OID:'{$oid}'", false);
}
/* check for bad entries */
if (is_array($temp_array) && sizeof($temp_array)) {
foreach ($temp_array as $key => $value) {
foreach ($banned_snmp_strings as $item) {
if (strstr($value, $item) != '') {
unset($temp_array[$key]);
continue 2;
}
}
}
$o = 0;
for (reset($temp_array); $i = key($temp_array); next($temp_array)) {
if ($temp_array[$i] != 'NULL') {
$snmp_array[$o]['oid'] = preg_replace('/^\\./', '', $i);
$snmp_array[$o]['value'] = format_snmp_string($temp_array[$i], $snmp_oid_included);
}
$o++;
}
}
} else {
/* ucd/net snmp want the timeout in seconds */
$timeout = ceil($timeout / 1000);
if ($version == '1') {
$snmp_auth = '-c ' . snmp_escape_string($community);
/* v1/v2 - community string */
} elseif ($version == '2') {
$snmp_auth = '-c ' . snmp_escape_string($community);
/* v1/v2 - community string */
$version = '2c';
/* ucd/net snmp prefers this over '2' */
} elseif ($version == '3') {
if ($priv_proto == '[None]') {
$proto = 'authNoPriv';
$priv_proto = '';
} else {
$proto = 'authPriv';
}
if (strlen($priv_pass)) {
$priv_pass = '******' . snmp_escape_string($priv_pass) . ' -x ' . snmp_escape_string($priv_proto);
} else {
$priv_pass = '';
}
if (strlen($context)) {
$context = '-n ' . snmp_escape_string($context);
} else {
$context = '';
}
$snmp_auth = trim('-u ' . snmp_escape_string($username) . ' -l ' . snmp_escape_string($proto) . ' -a ' . snmp_escape_string($auth_proto) . ' -A ' . snmp_escape_string($password) . ' ' . $priv_pass . ' ' . $context);
/* v3 - username/password */
}
if (file_exists($path_snmpbulkwalk) && $version > 1 && $max_oids > 1) {
$temp_array = exec_into_array(cacti_escapeshellcmd($path_snmpbulkwalk) . " -O Qn {$snmp_auth} -v {$version} -t {$timeout} -r {$retries} -Cr{$max_oids} " . cacti_escapeshellarg($hostname) . ":{$port} " . cacti_escapeshellarg($oid));
} else {
$temp_array = exec_into_array(cacti_escapeshellcmd(read_config_option('path_snmpwalk')) . " -O Qn {$snmp_auth} -v {$version} -t {$timeout} -r {$retries} " . cacti_escapeshellarg($hostname) . ":{$port} " . cacti_escapeshellarg($oid));
}
if (substr_count(implode(' ', $temp_array), 'Timeout:')) {
cacti_log("WARNING: SNMP Walk Timeout for Host:'{$hostname}', and OID:'{$oid}'", false);
}
/* check for bad entries */
if (is_array($temp_array) && sizeof($temp_array)) {
foreach ($temp_array as $key => $value) {
foreach ($banned_snmp_strings as $item) {
if (strstr($value, $item) != '') {
unset($temp_array[$key]);
continue 2;
}
}
}
for ($i = 0; $i < count($temp_array); $i++) {
if ($temp_array[$i] != 'NULL') {
$snmp_array[$i]['oid'] = trim(preg_replace('/(.*) =.*/', "\\1", $temp_array[$i]));
$snmp_array[$i]['value'] = format_snmp_string($temp_array[$i], true);
}
}
}
}
return $snmp_array;
}
function utilities_view_tech($php_info = "")
{
global $database_default, $config, $rrdtool_versions, $poller_options, $input_types;
/* Get table status */
$tables = db_fetch_assoc("SHOW TABLES");
$skip_tables = array();
$table_status = array();
if (sizeof($tables)) {
foreach ($tables as $table) {
$create_syntax = db_fetch_row("SHOW CREATE TABLE " . $table["Tables_in_" . $database_default]);
if (sizeof($create_syntax)) {
if (substr_count(strtoupper($create_syntax["Create Table"]), "INNODB")) {
$skip_tables[] = $table["Tables_in_" . $database_default];
} else {
$include_tables[] = $table["Tables_in_" . $database_default];
}
}
}
}
if (sizeof($include_tables)) {
foreach ($include_tables as $table) {
$status = db_fetch_row("SHOW TABLE STATUS LIKE '{$table}'");
array_push($table_status, $status);
}
}
/* Get poller stats */
$poller_item = db_fetch_assoc("SELECT action, count(action) as total FROM poller_item GROUP BY action");
/* Get system stats */
$host_count = db_fetch_cell("SELECT COUNT(*) FROM host");
$graph_count = db_fetch_cell("SELECT COUNT(*) FROM graph_local");
$data_count = db_fetch_assoc("SELECT i.type_id, COUNT(i.type_id) AS total FROM data_template_data AS d, data_input AS i WHERE d.data_input_id = i.id AND local_data_id <> 0 GROUP BY i.type_id");
/* Get RRDtool version */
$rrdtool_version = "Unknown";
if (file_exists(read_config_option("path_rrdtool")) && (function_exists('is_executable') && is_executable(read_config_option("path_rrdtool")))) {
$out_array = array();
exec(cacti_escapeshellcmd(read_config_option("path_rrdtool")), $out_array);
if (sizeof($out_array) > 0) {
if (preg_match("/^RRDtool 1\\.4/", $out_array[0])) {
$rrdtool_version = "rrd-1.4.x";
} else {
if (preg_match("/^RRDtool 1\\.3\\./", $out_array[0])) {
$rrdtool_version = "rrd-1.3.x";
} else {
if (preg_match("/^RRDtool 1\\.2\\./", $out_array[0])) {
$rrdtool_version = "rrd-1.2.x";
} else {
if (preg_match("/^RRDtool 1\\.0\\./", $out_array[0])) {
$rrdtool_version = "rrd-1.0.x";
}
}
}
}
}
}
/* Get SNMP cli version */
$snmp_version = read_config_option("snmp_version");
if (file_exists(read_config_option("path_snmpget")) && (function_exists('is_executable') && is_executable(read_config_option("path_snmpget")))) {
$snmp_version = shell_exec(cacti_escapeshellcmd(read_config_option("path_snmpget")) . " -V 2>&1");
}
/* Check RRDTool issues */
$rrdtool_error = "";
if ($rrdtool_version != read_config_option("rrdtool_version")) {
$rrdtool_error .= "<br><font color='red'>ERROR: Installed RRDTool version does not match configured version.<br>Please visit the <a href='" . htmlspecialchars("settings.php?tab=general") . "'>Configuration Settings</a> and select the correct RRDTool Utility Version.</font><br>";
}
$graph_gif_count = db_fetch_cell("SELECT COUNT(*) FROM graph_templates_graph WHERE image_format_id = 2");
if ($graph_gif_count > 0 && read_config_option("rrdtool_version") != "rrd-1.0.x") {
$rrdtool_error .= "<br><font color='red'>ERROR: RRDTool 1.2.x does not support the GIF images format, but " . $graph_gif_count . " graph(s) and/or templates have GIF set as the image format.</font><br>";
}
/* Get spine version */
$spine_version = "Unknown";
if (file_exists(read_config_option("path_spine")) && (function_exists('is_executable') && is_executable(read_config_option("path_spine")))) {
$out_array = array();
exec(read_config_option("path_spine") . " --version", $out_array);
if (sizeof($out_array) > 0) {
$spine_version = $out_array[0];
}
}
/* Display tech information */
html_start_box("<strong>Technical Support</strong>", "100%", "", "3", "center", "");
html_header(array("General Information"), 2);
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Date</td>\n";
print "\t\t<td class='textArea'>" . date("r") . "</td>\n";
print "</tr>\n";
api_plugin_hook_function('custom_version_info');
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>Cacti Version</td>\n";
print "\t\t<td class='textArea'>" . $config["cacti_version"] . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Cacti OS</td>\n";
print "\t\t<td class='textArea'>" . $config["cacti_server_os"] . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>SNMP Version</td>\n";
print "\t\t<td class='textArea'>" . $snmp_version . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>RRDTool Version</td>\n";
print "\t\t<td class='textArea'>" . $rrdtool_versions[$rrdtool_version] . " " . $rrdtool_error . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>Hosts</td>\n";
print "\t\t<td class='textArea'>" . $host_count . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Graphs</td>\n";
print "\t\t<td class='textArea'>" . $graph_count . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>Data Sources</td>\n";
print "\t\t<td class='textArea'>";
$data_total = 0;
if (sizeof($data_count)) {
foreach ($data_count as $item) {
print $input_types[$item["type_id"]] . ": " . $item["total"] . "<br>";
$data_total += $item["total"];
}
print "Total: " . $data_total;
} else {
print "<font color='red'>0</font>";
}
print "</td>\n";
print "</tr>\n";
html_header(array("Poller Information"), 2);
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Interval</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("poller_interval") . "</td>\n";
if (file_exists(read_config_option("path_spine")) && $poller_options[read_config_option("poller_type")] == 'spine') {
$type = $spine_version;
} else {
$type = $poller_options[read_config_option("poller_type")];
}
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>Type</td>\n";
print "\t\t<td class='textArea'>" . $type . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Items</td>\n";
print "\t\t<td class='textArea'>";
$total = 0;
if (sizeof($poller_item)) {
foreach ($poller_item as $item) {
print "Action[" . $item["action"] . "]: " . $item["total"] . "<br>";
$total += $item["total"];
}
print "Total: " . $total;
} else {
print "<font color='red'>No items to poll</font>";
}
print "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>Concurrent Processes</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("concurrent_processes") . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Max Threads</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("max_threads") . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>PHP Servers</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("php_servers") . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Script Timeout</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("script_timeout") . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>Max OID</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("max_get_size") . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>Last Run Statistics</td>\n";
print "\t\t<td class='textArea'>" . read_config_option("stats_poller") . "</td>\n";
print "</tr>\n";
html_header(array("PHP Information"), 2);
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>PHP Version</td>\n";
print "\t\t<td class='textArea'>" . phpversion() . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>PHP OS</td>\n";
print "\t\t<td class='textArea'>" . PHP_OS . "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>PHP uname</td>\n";
print "\t\t<td class='textArea'>";
if (function_exists("php_uname")) {
print php_uname();
} else {
print "N/A";
}
print "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>PHP SNMP</td>\n";
print "\t\t<td class='textArea'>";
if (function_exists("snmpget")) {
print "Installed";
} else {
print "Not Installed";
}
print "</td>\n";
print "</tr>\n";
print "<tr class='odd'>\n";
print "\t\t<td class='textArea'>max_execution_time</td>\n";
print "\t\t<td class='textArea'>" . ini_get("max_execution_time") . "</td>\n";
print "</tr>\n";
print "<tr class='even'>\n";
print "\t\t<td class='textArea'>memory_limit</td>\n";
print "\t\t<td class='textArea'>" . ini_get("memory_limit");
/* Calculate memory suggestion based off of data source count */
$memory_suggestion = $data_total * 32768;
/* Set minimum - 16M */
if ($memory_suggestion < 16777216) {
$memory_suggestion = 16777216;
}
/* Set maximum - 512M */
if ($memory_suggestion > 536870912) {
$memory_suggestion = 536870912;
}
/* Suggest values in 8M increments */
$memory_suggestion = round($memory_suggestion / 8388608) * 8388608;
if (memory_bytes(ini_get('memory_limit')) < $memory_suggestion) {
print "<br><font color='red'>";
if (ini_get('memory_limit') == -1) {
print "You've set memory limit to 'unlimited'.<br/>";
}
print "It is highly suggested that you alter you php.ini memory_limit to " . memory_readable($memory_suggestion) . " or higher. <br/>\n\t\t\tThis suggested memory value is calculated based on the number of data source present and is only to be used as a suggestion, actual values may vary system to system based on requirements.";
print "</font><br>";
}
print "</td>\n";
print "</tr>\n";
html_header(array("MySQL Table Information"), 2);
print "<tr class='odd'>\n";
print "\t\t<td class='textArea' colspan='2' align='center'>";
if (sizeof($table_status) > 0) {
print "<table border='1' cellpadding='2' cellspacing='0'>\n";
print "<tr>\n";
print " <th>Name</th>\n";
print " <th>Rows</th>\n";
print " <th>Engine</th>\n";
print " <th>Collation</th>\n";
print "</tr>\n";
foreach ($table_status as $item) {
print "<tr>\n";
print " <td>" . $item["Name"] . "</td>\n";
print " <td>" . $item["Rows"] . "</td>\n";
if (isset($item["Engine"])) {
print " <td>" . $item["Engine"] . "</td>\n";
} else {
print " <td>Unknown</td>\n";
}
if (isset($item["Collation"])) {
print " <td>" . $item["Collation"] . "</td>\n";
} else {
print " <td>Unknown</td>\n";
}
print "</tr>\n";
}
if (sizeof($skip_tables)) {
print "<tr><td colspan='20' align='center'><strong>The Following Tables were Skipped Due to being INNODB</strong></td></tr>";
foreach ($skip_tables as $table) {
print "<tr><td colspan='20' align='center'>" . $table . "</td></tr>";
}
}
print "</table>\n";
} else {
print "Unable to retrieve table status";
}
print "</td>\n";
print "</tr>\n";
html_header(array("PHP Module Information"), 2);
print "<tr class='odd'>\n";
print "\t\t<td class='textArea' colspan='2'>" . $php_info . "</td>\n";
print "</tr>\n";
html_end_box();
}
function cacti_snmp_walk($hostname, $community, $oid, $version, $username, $password, $auth_proto, $priv_pass, $priv_proto, $context, $port = 161, $timeout = 500, $retries = 0, $max_oids = 10, $environ = SNMP_POLLER)
{
global $config, $banned_snmp_strings;
$snmp_oid_included = true;
$snmp_auth = '';
$snmp_array = array();
$temp_array = array();
/* determine default retries */
if ($retries == 0 || !is_numeric($retries)) {
$retries = read_config_option("snmp_retries");
if ($retries == "") {
$retries = 3;
}
}
/* determine default max_oids */
if ($max_oids == 0 || !is_numeric($max_oids)) {
$max_oids = read_config_option("max_get_size");
if ($max_oids == "") {
$max_oids = 10;
}
}
/* do not attempt to poll invalid combinations */
if ($version == 0 || !is_numeric($version) || !is_numeric($max_oids) || !is_numeric($port) || !is_numeric($retries) || !is_numeric($timeout) || $community == "" && $version != 3) {
return array();
}
$path_snmpbulkwalk = read_config_option("path_snmpbulkwalk");
if (snmp_get_method($version) == SNMP_METHOD_PHP && (!strlen($context) || $version != 3) && ($version == 1 || version_compare(phpversion(), "5.1") >= 0 || !file_exists($path_snmpbulkwalk))) {
/* make sure snmp* is verbose so we can see what types of data
we are getting back */
/* force php to return numeric oid's */
if (function_exists("snmp_set_oid_numeric_print")) {
snmp_set_oid_numeric_print(TRUE);
}
if (function_exists("snmprealwalk")) {
$snmp_oid_included = false;
}
snmp_set_quick_print(0);
if ($version == "1") {
$temp_array = @snmprealwalk("{$hostname}:{$port}", "{$community}", "{$oid}", $timeout * 1000, $retries);
} elseif ($version == "2") {
$temp_array = @snmp2_real_walk("{$hostname}:{$port}", "{$community}", "{$oid}", $timeout * 1000, $retries);
} else {
if ($priv_proto == "[None]" || $priv_pass == '') {
$proto = "authNoPriv";
$priv_proto = "";
} else {
$proto = "authPriv";
}
$temp_array = @snmp3_real_walk("{$hostname}:{$port}", "{$username}", $proto, $auth_proto, "{$password}", $priv_proto, "{$priv_pass}", "{$oid}", $timeout * 1000, $retries);
}
if ($temp_array === false) {
cacti_log("WARNING: SNMP Walk Timeout for Host:'{$hostname}', and OID:'{$oid}'", false);
}
/* check for bad entries */
if (is_array($temp_array) && sizeof($temp_array)) {
foreach ($temp_array as $key => $value) {
foreach ($banned_snmp_strings as $item) {
if (strstr($value, $item) != "") {
unset($temp_array[$key]);
continue 2;
}
}
}
}
$o = 0;
for (@reset($temp_array); $i = @key($temp_array); next($temp_array)) {
if ($temp_array[$i] != "NULL") {
$snmp_array[$o]["oid"] = preg_replace("/^\\./", "", $i);
$snmp_array[$o]["value"] = format_snmp_string($temp_array[$i], $snmp_oid_included);
}
$o++;
}
} else {
/* ucd/net snmp want the timeout in seconds */
$timeout = ceil($timeout / 1000);
if ($version == "1") {
$snmp_auth = read_config_option("snmp_version") == "ucd-snmp" ? snmp_escape_string($community) : "-c " . snmp_escape_string($community);
/* v1/v2 - community string */
} elseif ($version == "2") {
$snmp_auth = read_config_option("snmp_version") == "ucd-snmp" ? snmp_escape_string($community) : "-c " . snmp_escape_string($community);
/* v1/v2 - community string */
$version = "2c";
/* ucd/net snmp prefers this over '2' */
} elseif ($version == "3") {
if ($priv_proto == "[None]" || $priv_pass == '') {
$proto = "authNoPriv";
$priv_proto = "";
} else {
$proto = "authPriv";
}
if (strlen($priv_pass)) {
$priv_pass = "******" . snmp_escape_string($priv_pass) . " -x " . snmp_escape_string($priv_proto);
} else {
$priv_pass = "";
}
if (strlen($context)) {
$context = "-n " . snmp_escape_string($context);
} else {
$context = "";
}
$snmp_auth = trim("-u " . snmp_escape_string($username) . " -l " . snmp_escape_string($proto) . " -a " . snmp_escape_string($auth_proto) . " -A " . snmp_escape_string($password) . " " . $priv_pass . " " . $context);
/* v3 - username/password */
}
if (read_config_option("snmp_version") == "ucd-snmp") {
/* escape the command to be executed and vulnerable parameters
* numeric parameters are not subject to command injection
* snmp_auth is treated seperately, see above */
$temp_array = exec_into_array(cacti_escapeshellcmd(read_config_option("path_snmpwalk")) . " -v{$version} -t {$timeout} -r {$retries} " . cacti_escapeshellarg($hostname) . ":{$port} {$snmp_auth} " . cacti_escapeshellarg($oid));
} else {
if (file_exists($path_snmpbulkwalk) && $version > 1 && $max_oids > 1) {
$temp_array = exec_into_array(cacti_escapeshellcmd($path_snmpbulkwalk) . " -O Qn {$snmp_auth} -v {$version} -t {$timeout} -r {$retries} -Cr{$max_oids} " . cacti_escapeshellarg($hostname) . ":{$port} " . cacti_escapeshellarg($oid));
} else {
$temp_array = exec_into_array(cacti_escapeshellcmd(read_config_option("path_snmpwalk")) . " -O Qn {$snmp_auth} -v {$version} -t {$timeout} -r {$retries} " . cacti_escapeshellarg($hostname) . ":{$port} " . cacti_escapeshellarg($oid));
}
}
if (substr_count(implode(" ", $temp_array), "Timeout:")) {
cacti_log("WARNING: SNMP Walk Timeout for Host:'{$hostname}', and OID:'{$oid}'", false);
}
/* check for bad entries */
if (is_array($temp_array) && sizeof($temp_array)) {
foreach ($temp_array as $key => $value) {
foreach ($banned_snmp_strings as $item) {
if (strstr($value, $item) != "") {
unset($temp_array[$key]);
continue 2;
}
}
}
}
for ($i = 0; $i < count($temp_array); $i++) {
if ($temp_array[$i] != "NULL") {
$snmp_array[$i]["oid"] = trim(preg_replace("/(.*) =.*/", "\\1", $temp_array[$i]));
$snmp_array[$i]["value"] = format_snmp_string($temp_array[$i], true);
}
}
}
return $snmp_array;
}
