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https://github.com/librenms/librenms.git
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b55938f031
* first commit * clean code * add snmpsim data for bgp * renumber sql patch * clear public ip * update misc/db_schema.yaml * add test data and renumber sql-schema * sql-schema * sql-schema * Update module_tables.yaml * Update module_tables.yaml * Update timos.json * Update timos.snmprec * Rename 281.sql to 282.sql * update test data * db migration * Update 2019_01_16_195644_add_vrf_id_and_bgpLocalAs.php * update db schema * Update 2019_01_16_195644_add_vrf_id_and_bgpLocalAs.php * Update 2019_01_16_195644_add_vrf_id_and_bgpLocalAs.php * Update db_schema.yaml * update schema
240 lines
11 KiB
PHP
240 lines
11 KiB
PHP
<?php
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use LibreNMS\Config;
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if (Config::get('enable_vrfs')) {
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if (in_array($device['os_group'], ['vrp', 'cisco']) ||
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in_array($device['os'], ['junos', 'ironware'])) {
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unset($vrf_count);
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/*
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There are 2 MIBs for VPNs : MPLS-VPN-MIB (oldest) and MPLS-L3VPN-STD-MIB (newest)
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Unfortunately, there is no simple way to find out which one to use, unless we reference
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all the possible devices and check what they support.
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Therefore we start testing the MPLS-L3VPN-STD-MIB that is prefered if available.
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*/
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// Grab all the info first, then use it in the code.
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// It removes load on the device and makes things much faster
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$rds = snmp_walk($device, 'mplsL3VpnVrfRD', '-Osqn', 'MPLS-L3VPN-STD-MIB', null);
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if (empty($rds)) {
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$rds = snmp_walk($device, 'mplsVpnVrfRouteDistinguisher', '-Osqn', 'MPLS-VPN-MIB', null);
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if (empty($rds) && $device['os_group'] == 'cisco') {
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// Use CISCO-VRF-MIB if others don't work
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$rds = snmp_walk($device, 'cvVrfName', '-Osqn', 'CISCO-VRF-MIB', null);
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$rds = str_replace('.1.3.6.1.4.1.9.9.711.1.1.1.1.2.', '', $rds);
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$vpnmib = 'CISCO-VRF-MIB';
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// No descr_oid given, does not exist for CISCO-VRF-MIB
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$descr_oid = null;
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$ports_oid = '.1.3.6.1.4.1.9.9.711.1.2.1.1.2';
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} else {
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$vpnmib = 'MPLS-VPN-MIB';
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$rds = str_replace('.1.3.6.1.3.118.1.2.2.1.3.', '', $rds);
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$descr_oid = '.1.3.6.1.3.118.1.2.2.1.2';
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$ports_oid = '.1.3.6.1.3.118.1.2.1.1.2';
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}
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} else {
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$vpnmib = 'MPLS-L3VPN-STD-MIB';
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$rds = str_replace('.1.3.6.1.2.1.10.166.11.1.2.2.1.4.', '', $rds);
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$descr_oid = '.1.3.6.1.2.1.10.166.11.1.2.2.1.3';
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$ports_oid = '.1.3.6.1.2.1.10.166.11.1.2.1.1.2';
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}
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d_echo("\n[DEBUG]\nUsing $vpnmib\n[/DEBUG]\n");
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d_echo("\n[DEBUG OIDS]\n$rds\n[/DEBUG]\n");
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$rds = trim($rds);
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if ($descr_oid) {
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$descrs = snmp_walk($device, $descr_oid, '-Osqn', $vpnmib, null);
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$descrs = trim(str_replace("$descr_oid.", '', $descrs));
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$descr_table = [];
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foreach (explode("\n", $descrs) as $descr) {
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$t = explode(' ', $descr, 2);
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$descr_table[$t[0]] = $t[1];
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}
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}
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$ports = snmp_walk($device, $ports_oid, '-Osqn', $vpnmib, null);
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$ports = trim(str_replace("$ports_oid.", '', $ports));
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$port_table = [];
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foreach (explode("\n", $ports) as $port) {
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$t = explode(' ', $port);
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$dotpos = strrpos($t[0], '.');
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$vrf_oid = substr($t[0], 0, $dotpos);
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$port_id = substr($t[0], ($dotpos + 1));
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if (empty($port_table[$vrf_oid])) {
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$port_table[$vrf_oid][0] = $port_id;
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} else {
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array_push($port_table[$vrf_oid], $port_id);
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}
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}
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foreach (explode("\n", $rds) as $oid) {
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if (empty($descr_oid) && strpos($oid, 'Platform_iVRF')) {
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// Skip since it is an internal service and not a VRF
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continue;
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}
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echo "\n";
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if ($oid) {
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// 8.49.53.48.56.58.49.48.48 "1508:100"
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// First digit gives number of chars in VRF Name, then it's ASCII
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list($vrf_oid, $vrf_rd) = explode(' ', $oid);
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$oid_values = explode('.', $vrf_oid);
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$vrf_name = '';
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for ($i = 1; $i <= $oid_values[0]; $i++) {
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$vrf_name .= chr($oid_values[$i]);
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}
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// Some VRP versions output VRF RD values as Null terminated Hex-STRING rather than string.
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// This has to be converted to decimal
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if ($device['os'] == 'vrp' && preg_match('/^([^ ]+) +(([^ ]+) +.*) 00/', $oid, $matches)) {
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//.1.3.6.1.2.1.10.166.11.1.2.2.1.4.5.116.101.115.116.49 36 35 33 30 31 3A 31 00
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// regexp result => 5.116.101.115.116.49 -- 36 35 33 30 31 3A 31 -- 00
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d_echo(" [DEBUG] VRP: RD HexString handling: $matches[2]");
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$hex_vrf_rd = str_replace(' ', '', $matches[2]);
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$vrf_rd = hex2str($hex_vrf_rd);
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d_echo("\n [DEBUG] VRP: RD : $hex_vrf_rd -> $vrf_rd");
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}
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// Brocade Ironware outputs VRF RD values as Hex-STRING rather than string. This has to be converted to decimal
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if ($device['os'] == 'ironware') {
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$vrf_rd = substr($oid, -24); // Grab last 24 characters from $oid, which is the RD hex value
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$vrf_rd = str_replace(' ', '', $vrf_rd); // Remove whitespace
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$vrf_rd = str_split($vrf_rd, 8); // Split it into an array, with an object for each half of the RD
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$vrf_rd[0] = hexdec($vrf_rd[0]); // Convert first object to decimal
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$vrf_rd[1] = hexdec($vrf_rd[1]); // Convert second object to deciamal
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$vrf_rd = implode(':', $vrf_rd); // Combine back into string, delimiter by colon
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} elseif (empty($descr_oid)) {
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// Move rd to vrf_name and remove rd (no way to grab these values with CISCO-VRF-MIB)
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$vrf_name = $vrf_rd;
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unset($vrf_rd);
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}
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echo "\n [VRF $vrf_name] OID - $vrf_oid";
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echo "\n [VRF $vrf_name] RD - $vrf_rd";
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echo "\n [VRF $vrf_name] DESC - ".$descr_table[$vrf_oid];
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if (dbFetchCell('SELECT COUNT(*) FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid])) {
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dbUpdate(['mplsVpnVrfDescription' => $descr_table[$vrf_oid], 'mplsVpnVrfRouteDistinguisher' => $vrf_rd], 'vrfs', 'device_id=? AND vrf_oid=?', [$device['device_id'], $vrf_oid]);
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} else {
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dbInsert(['vrf_oid' => $vrf_oid, 'vrf_name' => $vrf_name, 'mplsVpnVrfRouteDistinguisher' => $vrf_rd, 'mplsVpnVrfDescription' => $descr_table[$vrf_oid], 'device_id' => $device['device_id']], 'vrfs');
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}
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$vrf_id = dbFetchCell('SELECT vrf_id FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid]);
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$valid_vrf[$vrf_id] = 1;
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echo "\n [VRF $vrf_name] PORTS - ";
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foreach ($port_table[$vrf_oid] as $if_id) {
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$interface = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', [$device['device_id'], $if_id]);
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echo makeshortif($interface['ifDescr']).' ';
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dbUpdate(['ifVrf' => $vrf_id], 'ports', 'port_id=?', [$interface['port_id']]);
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$if = $interface['port_id'];
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$valid_vrf_if[$vrf_id][$if] = 1;
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}
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}//end if
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}//end foreach
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} else if ($device['os_group'] == 'nokia') {
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unset($vrf_count);
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$vrtr = snmpwalk_cache_oid($device, 'vRtrConfTable', [], 'TIMETRA-VRTR-MIB');
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$port_table = snmpwalk_cache_twopart_oid($device, 'vRtrIfName', [], 'TIMETRA-VRTR-MIB');
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foreach ($vrtr as $vrf_oid => $vr) {
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$vrf_name = $vr['vRtrName'];
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$vrf_desc = $vr['vRtrName'];
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$vrf_as = $vr['vRtrAS4Byte'];
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$vrf_rd = $vr['vRtrRouteDistinguisher'];
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// Nokia, The VPRN route distinguisher is a 8-octet object.
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// It contains a 2-octet type field followed by a 6-octet value field. The type field specify how to interpret the value field.
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// Type 0 specifies two subfields as a 2-octet administrative field and a 4-octet assigned number subfield.
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// Type 1 specifies two subfields as a 4-octet administrative field which must contain an IP address and a 2-octet assigned number subfield.
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// Type 2 specifies two subfields as a 4-octet administrative field which contains a 4-octet AS number and a 2-octet assigned number subfield.
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// FIXME Hardcoded to Type 0
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$vrf_rd = str_replace(' ', '', $vrf_rd);
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if ($vrf_rd <> "000000000000") {
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$vrf_rd_1 = substr($vrf_rd, 4, 4);
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$vrf_rd_2 = substr($vrf_rd, 8);
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$vrf_rd = hexdec($vrf_rd_1) . ":" . hexdec($vrf_rd_2);
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} else {
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$vrf_rd = null;
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}
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echo "\n [VRF $vrf_name] OID - $vrf_oid";
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echo "\n [VRF $vrf_name] RD - $vrf_rd";
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echo "\n [VRF $vrf_name] DESC - $vrf_desc";
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$vrfs = [
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'vrf_oid' => $vrf_oid,
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'vrf_name' => $vrf_name,
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'bgpLocalAs' => $vrf_as,
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'mplsVpnVrfRouteDistinguisher' => $vrf_rd,
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'mplsVpnVrfDescription' => $$vrf_desc,
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'device_id' => $device['device_id'],
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];
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if (dbFetchCell('SELECT COUNT(*) FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid])) {
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dbUpdate(['vrf_name' => $vrf_name, 'bgpLocalAs' => $vrf_as, 'mplsVpnVrfRouteDistinguisher' => $vrf_rd, 'mplsVpnVrfDescription' => $vrf_desc], 'vrfs', 'device_id=? AND vrf_oid=?', [$device['device_id'], $vrf_oid]);
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} else {
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dbInsert($vrfs, 'vrfs');
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}
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$vrf_id = dbFetchCell('SELECT vrf_id FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid]);
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$valid_vrf[$vrf_id] = 1;
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echo "\n [VRF $vrf_name] PORTS - ";
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foreach ($port_table[$vrf_oid] as $if_index => $if_name) {
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$interface = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', [$device['device_id'], $if_index]);
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echo makeshortif($interface['ifDescr']).' ';
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dbUpdate(['ifVrf' => $vrf_id], 'ports', 'port_id=?', [$interface['port_id']]);
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$if = $interface['port_id'];
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$valid_vrf_if[$vrf_id][$if] = 1;
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}
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} //end foreach
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} //end if
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unset(
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$descr_table,
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$port_table
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);
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echo "\n";
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$sql = "SELECT * FROM ports WHERE device_id = '".$device['device_id']."'";
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foreach (dbFetchRows($sql) as $row) {
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$if = $row['port_id'];
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$vrf_id = $row['ifVrf'];
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if ($row['ifVrf']) {
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if (!$valid_vrf_if[$vrf_id][$if]) {
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echo '-';
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dbUpdate(['ifVrf' => 'NULL'], 'ports', 'port_id=?', [$if]);
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} else {
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echo '.';
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}
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}
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}
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$sql = "SELECT * FROM vrfs WHERE device_id = '".$device['device_id']."'";
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foreach (dbFetchRows($sql) as $row) {
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$vrf_id = $row['vrf_id'];
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if (!$valid_vrf[$vrf_id]) {
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echo '-';
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dbDelete('vrfs', '`vrf_id` = ?', [$vrf_id]);
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} else {
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echo '.';
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}
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}
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unset(
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$valid_vrf_if,
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$valid_vrf,
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$row,
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$sql
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);
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echo "\n";
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} //end if
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