1 | <?php |
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2 | |||
3 | /** |
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4 | * dell-os10.inc.php |
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5 | * |
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6 | * LibreNMS bgp_peers for Dell OS10 |
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7 | * |
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8 | * This program is free software: you can redistribute it and/or modify |
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9 | * it under the terms of the GNU General Public License as published by |
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10 | * the Free Software Foundation, either version 3 of the License, or |
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11 | * (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
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20 | * |
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21 | * @link https://www.librenms.org |
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22 | * |
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23 | * @copyright 2021 LibreNMS Contributors |
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24 | * @author LibreNMS Contributors |
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25 | */ |
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26 | |||
27 | use LibreNMS\Config; |
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28 | use LibreNMS\Util\IP; |
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29 | |||
30 | if (Config::get('enable_bgp')) { |
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31 | if ($device['os'] == 'dell-os10') { |
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32 | $bgpPeersCache = snmpwalk_cache_multi_oid($device, 'os10bgp4V2PeerTable', [], 'DELLEMC-OS10-BGP4V2-MIB', 'dell'); |
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33 | foreach ($bgpPeersCache as $key => $value) { |
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34 | $oid = explode('.', $key); |
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35 | $vrfInstance = array_shift($oid); // os10bgp4V2PeerInstance |
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36 | $remoteAddressType = array_shift($oid); // os10bgp4V2PeerRemoteAddrType |
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37 | $address = IP::fromSnmpString(implode(' ', $oid))->compressed(); // os10bgp4V2PeerRemoteAddr |
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38 | $bgpPeers[$vrfInstance][$address] = $value; |
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39 | } |
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40 | unset($bgpPeersCache); |
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41 | |||
42 | foreach ($bgpPeers as $vrfInstance => $peer) { |
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43 | $vrfId = dbFetchCell('SELECT vrf_id from `vrfs` WHERE vrf_oid = ?', [$vrfInstance]); |
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44 | if (is_null($vrfId)) { |
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45 | $vrfId = 1; // According to the MIB |
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46 | } |
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47 | foreach ($peer as $address => $value) { |
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48 | // resolve AS number by DNS_TXT record |
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49 | $astext = get_astext($value['os10bgp4V2PeerRemoteAs']); |
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50 | |||
51 | // FIXME - the `devices` table gets updated in the main bgp-peers.inc.php |
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52 | // Setting it here avoids the code that resets it to null if not found in BGP4-MIB. |
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53 | $bgpLocalAs = $value['os10bgp4V2PeerLocalAs']; |
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54 | |||
55 | if (dbFetchCell('SELECT count(*) FROM `bgpPeers` WHERE device_id = ? AND bgpPeerIdentifier = ? AND vrf_id = ?', [$device['device_id'], $address, $vrfId]) == 0) { |
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56 | $row = [ |
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57 | 'device_id' => $device['device_id'], |
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58 | 'vrf_id' => $vrfId, |
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59 | 'bgpPeerIdentifier' => $address, |
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60 | 'bgpPeerRemoteAs' => $value['os10bgp4V2PeerRemoteAs'], |
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61 | 'bgpPeerState' => 'idle', |
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62 | 'bgpPeerAdminStatus' => 'stop', |
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63 | 'bgpLocalAddr' => '0.0.0.0', |
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64 | 'bgpPeerRemoteAddr' => '0.0.0.0', |
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65 | 'bgpPeerInUpdates' => 0, |
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66 | 'bgpPeerOutUpdates' => 0, |
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67 | 'bgpPeerInTotalMessages' => 0, |
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68 | 'bgpPeerOutTotalMessages' => 0, |
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69 | 'bgpPeerFsmEstablishedTime' => 0, |
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70 | 'bgpPeerInUpdateElapsedTime' => 0, |
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71 | 'astext' => $astext, |
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72 | ]; |
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73 | dbInsert($row, 'bgpPeers'); |
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74 | |||
75 | if (Config::get('autodiscovery.bgp')) { |
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76 | $name = gethostbyaddr($address); |
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77 | discover_new_device($name, $device, 'BGP'); |
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78 | } |
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79 | echo '+'; |
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80 | } else { |
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81 | dbUpdate(['bgpPeerRemoteAs' => $value['os10bgp4V2PeerRemoteAs'], 'astext' => $astext], 'bgpPeers', 'device_id = ? AND bgpPeerIdentifier = ? AND vrf_id = ?', [$device['device_id'], $address, $vrfId]); |
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82 | echo '.'; |
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83 | } |
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84 | } |
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85 | } |
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86 | |||
87 | $af_data = snmpwalk_cache_oid($device, 'os10bgp4V2PrefixInPrefixes', [], 'DELLEMC-OS10-BGP4V2-MIB', 'dell'); |
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88 | foreach ($af_data as $key => $value) { |
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89 | $oid = explode('.', $key); |
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90 | $vrfInstance = array_shift($oid); // os10bgp4V2PeerInstance |
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91 | $remoteAddressType = array_shift($oid); // os10bgp4V2PeerRemoteAddrType |
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92 | $safi = array_pop($oid); // os10bgp4V2PrefixGaugesSafi |
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93 | $afi = array_pop($oid); // os10bgp4V2PrefixGaugesAfi |
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94 | $address = IP::fromSnmpString(implode(' ', $oid))->compressed(); // os10bgp4V2PeerRemoteAddr |
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95 | // add to `bgpPeers_cbgp` table |
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96 | add_cbgp_peer($device, ['ip' => $address], $afi, $safi); |
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97 | } |
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98 | |||
99 | // clean up peers |
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100 | if (dbFetchCell('SELECT count(*) FROM `vrfs` WHERE `device_id` = ?', [$device['device_id']]) == 0) { |
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101 | $peers = dbFetchRows('SELECT `vrf_id`, `bgpPeerIdentifier` FROM `bgpPeers` WHERE `device_id` = ?', [$device['device_id']]); |
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102 | } else { |
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103 | $peers = dbFetchRows('SELECT `B`.`vrf_id` AS `vrf_id`, `bgpPeerIdentifier` FROM `bgpPeers` AS B LEFT JOIN `vrfs` AS V ON `B`.`vrf_id` = `V`.`vrf_id` WHERE `B`.`device_id` = ?', [$device['device_id']]); |
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104 | } |
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105 | foreach ($peers as $peer) { |
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106 | $vrfId = $peer['vrf_id']; |
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107 | $address = $peer['bgpPeerIdentifier']; |
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108 | |||
109 | if (empty($bgpPeers[$vrfInstance][$address])) { |
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110 | $deleted = dbDelete('bgpPeers', 'device_id = ? AND bgpPeerIdentifier = ? AND vrf_id = ?', [$device['device_id'], $address, $vrfId]); |
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111 | |||
112 | echo str_repeat('-', $deleted); |
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113 | echo PHP_EOL; |
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114 | } |
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115 | } |
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116 | unset($bgpPeers); |
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117 | // No return statement here, so standard BGP mib will still be polled after this file is executed. |
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118 | } |
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119 | } |
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120 |
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: