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snmpv3 support. for hipsters.

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git-svn-id: http://www.observium.org/svn/observer/trunk@3156 61d68cd4-352d-0410-923a-c4978735b2b8
This commit is contained in:
Adam Amstrong
2012-05-09 16:18:23 +00:00
parent 547a1f0fc0
commit 790480769b
9 changed files with 536 additions and 95 deletions
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130
includes/snmp.inc.php
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@@ -1,5 +1,8 @@
<?php
// If anybody has again the idea to implement the PHP internal library calls,
// be aware that it was tried and banned by lead dev Adam
function string_to_oid($string)
{
$oid = strlen($string);
@@ -33,7 +36,9 @@ function snmp_get_multi($device, $oids, $options = "-OQUs", $mib = NULL, $mibdir
$device['transport'] = "udp";
}
$cmd = $config['snmpget'] . " -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $config['snmpget'];
$cmd .= snmp_gen_auth ($device);
if ($options) { $cmd .= " " . $options; }
if ($mib) { $cmd .= " -m " . $mib; }
if ($mibdir) { $cmd .= " -M " . $mibdir; } else { $cmd .= " -M ".$config['mibdir']; }
@@ -41,20 +46,16 @@ function snmp_get_multi($device, $oids, $options = "-OQUs", $mib = NULL, $mibdir
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
if (isset($retries)) { $cmd .= " -r " . $retries; }
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$oids;
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port'];
$cmd .= " ".$oids;
if (!$debug) { $cmd .= " 2>/dev/null"; }
$data = trim(external_exec($cmd));
$runtime_stats['snmpget']++;
foreach (explode("\n", $data) as $entry)
{
list($oid,$value) = explode("=", $entry);
$oid = trim($oid); $value = trim($value);
list($oid, $index) = explode(".", $oid);
if (!strstr($value, "at this OID") && isset($oid) && isset($index))
{
$array[$index][$oid] = $value;
}
$array[$index][$oid] = $value;
}
return $array;
}
@@ -87,20 +88,24 @@ function snmp_get($device, $oid, $options = NULL, $mib = NULL, $mibdir = NULL)
echo("Please report this to the Observium team.");
}
$cmd = $config['snmpget'] . " -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $config['snmpget'];
$cmd .= snmp_gen_auth ($device);
if ($options) { $cmd .= " " . $options; }
if ($mib) { $cmd .= " -m " . $mib; }
if ($mibdir) { $cmd .= " -M " . $mibdir; } else { $cmd .= " -M ".$config['mibdir']; }
if ($mibdir) { $cmd .= " -M " . $mibdir; }
else { $cmd .= " -M ".$config['mibdir']; }
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
if (isset($retries)) { $cmd .= " -r " . $retries; }
$cmd .= " ".$device['transport'].":".$device['hostname'].":".$device['port']." ".$oid;
$cmd .= " " . $device['transport'].":".$device['hostname'].":".$device['port'];
$cmd .= " " . $oid;
if (!$debug) { $cmd .= " 2>/dev/null"; }
$data = trim(external_exec($cmd));
$runtime_stats['snmpget']++;
if (is_string($data) && (preg_match("/No Such Instance/i", $data) || preg_match("/No Such Object/i", $data) || preg_match("/No more variables left/i", $data)))
if (is_string($data) && (preg_match("/(No Such Instance|No Such Object|No more variables left|Authentication failure)/i", $data)))
{
return false;
}
@@ -139,8 +144,11 @@ function snmp_walk($device, $oid, $options = NULL, $mib = NULL, $mibdir = NULL)
{
$snmpcommand = $config['snmpbulkwalk'];
}
$cmd = $snmpcommand;
$cmd .= snmp_gen_auth ($device);
$cmd = $snmpcommand . " -" . $device['snmpver'] . " -c " . $device['community'] . " ";
if ($options) { $cmd .= " $options "; }
if ($mib) { $cmd .= " -m $mib"; }
if ($mibdir) { $cmd .= " -M " . $mibdir; } else { $cmd .= " -M ".$config['mibdir']; }
@@ -200,7 +208,10 @@ function snmpwalk_cache_cip($device, $oid, $array, $mib = 0)
$snmpcommand = $config['snmpbulkwalk'];
}
$cmd = $snmpcommand . " -O snQ -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $snmpcommand;
$cmd .= snmp_gen_auth ($device);
$cmd .= " -O snQ";
if ($mib) { $cmd .= " -m $mib"; }
$cmd .= " -M ".$config['install_dir']."/mibs";
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
@@ -266,8 +277,11 @@ function snmp_cache_ifIndex($device)
$snmpcommand = $config['snmpbulkwalk'];
}
$cmd = $snmpcommand . " -O Qs -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd .= " -M ".$config['install_dir']."/mibs";
$cmd = $snmpcommand;
$cmd .= snmp_gen_auth ($device);
$cmd .= " -O Qs";
$cmd .= " -M " . $config['install_dir']."/mibs";
$cmd .= " -m IF-MIB ifIndex";
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
@@ -408,7 +422,11 @@ function snmpwalk_cache_twopart_oid($device, $oid, $array, $mib = 0)
{
$snmpcommand = $config['snmpbulkwalk'];
}
$cmd = $snmpcommand . " -O QUs -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $snmpcommand;
$cmd .= snmp_gen_auth ($device);
$cmd .= " -O QUs";
$cmd .= " -M ".$config['install_dir']."/mibs";
if ($mib) { $cmd .= " -m $mib"; }
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
@@ -465,7 +483,10 @@ function snmpwalk_cache_threepart_oid($device, $oid, $array, $mib = 0)
$snmpcommand = $config['snmpbulkwalk'];
}
$cmd = $snmpcommand . " -O QUs -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $snmpcommand;
$cmd .= snmp_gen_auth ($device);
$cmd .= " -O QUs";
$cmd .= " -M ".$config['install_dir']."/mibs";
if ($mib) { $cmd .= " -m $mib"; }
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
@@ -522,7 +543,10 @@ function snmp_cache_slotport_oid($oid, $device, $array, $mib = 0)
$snmpcommand = $config['snmpbulkwalk'];
}
$cmd = $snmpcommand . " -O QUs -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $snmpcommand;
$cmd .= snmp_gen_auth ($device);
$cmd .= " -O QUs";
if ($mib) { $cmd .= " -m $mib"; }
$cmd .= " -M ".$config['install_dir']."/mibs";
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
@@ -581,7 +605,10 @@ function snmp_cache_port_oids($oids, $port, $device, $array, $mib=0)
$string .= " $oid.$port";
}
$cmd = $config['snmpget'] . " -O vq -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $config['snmpget'];
$cmd .= snmp_gen_auth ($device);
$cmd .= " -O vq";
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
if (isset($retries)) { $cmd .= " -r " . $retries; }
$cmd .= " -M ".$config['install_dir']."/mibs";
@@ -627,7 +654,10 @@ function snmp_cache_portIfIndex($device, $array)
$device['transport'] = "udp";
}
$cmd = $config['snmpwalk'] . " -CI -m CISCO-STACK-MIB -O q -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $config['snmpwalk'];
$cmd .= snmp_gen_auth ($device);
$cmd .= " -CI -m CISCO-STACK-MIB -O q";
$cmd .= " -M ".$config['install_dir']."/mibs";
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
if (isset($retries)) { $cmd .= " -r " . $retries; }
@@ -671,7 +701,10 @@ function snmp_cache_portName($device, $array)
$device['transport'] = "udp";
}
$cmd = $config['snmpwalk'] . " -CI -m CISCO-STACK-MIB -O Qs -" . $device['snmpver'] . " -c " . $device['community'] . " ";
$cmd = $config['snmpwalk'];
$cmd .= snmp_gen_auth ($device);
$cmd .= " -CI -m CISCO-STACK-MIB -O Qs";
$cmd .= " -M ".$config['install_dir']."/mibs";
if (isset($timeout)) { $cmd .= " -t " . $timeout; }
if (isset($retries)) { $cmd .= " -r " . $retries; }
@@ -696,4 +729,53 @@ function snmp_cache_portName($device, $array)
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)
$cmd .= " -u observium";
}
elseif ($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;
}
?>