1 | <?php |
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2 | |||||
3 | use LibreNMS\Config; |
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4 | |||||
5 | if (Config::get('enable_vrfs')) { |
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6 | if (in_array($device['os_group'], ['vrp', 'cisco']) || |
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7 | in_array($device['os'], ['junos', 'ironware'])) { |
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8 | unset($vrf_count); |
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9 | |||||
10 | /* |
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11 | There are 2 MIBs for VPNs : MPLS-VPN-MIB (oldest) and MPLS-L3VPN-STD-MIB (newest) |
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12 | Unfortunately, there is no simple way to find out which one to use, unless we reference |
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13 | all the possible devices and check what they support. |
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14 | Therefore we start testing the MPLS-L3VPN-STD-MIB that is prefered if available. |
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15 | */ |
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16 | |||||
17 | // Grab all the info first, then use it in the code. |
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18 | // It removes load on the device and makes things much faster |
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19 | $rds = snmp_walk($device, 'mplsL3VpnVrfRD', '-Osqn', 'MPLS-L3VPN-STD-MIB', null); |
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20 | |||||
21 | if (empty($rds)) { |
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22 | $rds = snmp_walk($device, 'mplsVpnVrfRouteDistinguisher', '-Osqn', 'MPLS-VPN-MIB', null); |
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23 | |||||
24 | if (empty($rds) && $device['os_group'] == 'cisco') { |
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25 | // Use CISCO-VRF-MIB if others don't work |
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26 | $rds = snmp_walk($device, 'cvVrfName', '-Osqn', 'CISCO-VRF-MIB', null); |
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27 | $rds = str_replace('.1.3.6.1.4.1.9.9.711.1.1.1.1.2.', '', $rds); |
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28 | |||||
29 | $vpnmib = 'CISCO-VRF-MIB'; |
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30 | // No descr_oid given, does not exist for CISCO-VRF-MIB |
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31 | $descr_oid = null; |
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32 | $ports_oid = '.1.3.6.1.4.1.9.9.711.1.2.1.1.2'; |
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33 | } else { |
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34 | $vpnmib = 'MPLS-VPN-MIB'; |
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35 | $rds = str_replace('.1.3.6.1.3.118.1.2.2.1.3.', '', $rds); |
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36 | |||||
37 | $descr_oid = '.1.3.6.1.3.118.1.2.2.1.2'; |
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38 | $ports_oid = '.1.3.6.1.3.118.1.2.1.1.2'; |
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39 | } |
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40 | } else { |
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41 | $vpnmib = 'MPLS-L3VPN-STD-MIB'; |
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42 | $rds = str_replace('.1.3.6.1.2.1.10.166.11.1.2.2.1.4.', '', $rds); |
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43 | |||||
44 | $descr_oid = '.1.3.6.1.2.1.10.166.11.1.2.2.1.3'; |
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45 | $ports_oid = '.1.3.6.1.2.1.10.166.11.1.2.1.1.2'; |
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46 | } |
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47 | |||||
48 | d_echo("\n[DEBUG]\nUsing $vpnmib\n[/DEBUG]\n"); |
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49 | d_echo("\n[DEBUG OIDS]\n$rds\n[/DEBUG]\n"); |
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50 | |||||
51 | $rds = trim($rds); |
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52 | |||||
53 | if ($descr_oid) { |
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54 | $descrs = snmp_walk($device, $descr_oid, '-Osqn', $vpnmib, null); |
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55 | $descrs = trim(str_replace("$descr_oid.", '', $descrs)); |
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56 | $descr_table = []; |
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57 | foreach (explode("\n", $descrs) as $descr) { |
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58 | $t = explode(' ', $descr, 2); |
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59 | $descr_table[$t[0]] = $t[1]; |
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60 | } |
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61 | } |
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62 | |||||
63 | $ports = snmp_walk($device, $ports_oid, '-Osqn', $vpnmib, null); |
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64 | $ports = trim(str_replace("$ports_oid.", '', $ports)); |
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65 | $port_table = []; |
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66 | foreach (explode("\n", $ports) as $port) { |
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67 | $t = explode(' ', $port); |
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68 | $dotpos = strrpos($t[0], '.'); |
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69 | $vrf_oid = substr($t[0], 0, $dotpos); |
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70 | $port_id = substr($t[0], ($dotpos + 1)); |
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71 | |||||
72 | if (empty($port_table[$vrf_oid])) { |
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73 | $port_table[$vrf_oid][0] = $port_id; |
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74 | } else { |
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75 | array_push($port_table[$vrf_oid], $port_id); |
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76 | } |
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77 | } |
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78 | |||||
79 | foreach (explode("\n", $rds) as $oid) { |
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80 | if (empty($descr_oid) && strpos($oid, 'Platform_iVRF')) { |
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81 | // Skip since it is an internal service and not a VRF |
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82 | continue; |
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83 | } |
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84 | echo "\n"; |
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85 | if ($oid) { |
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86 | // 8.49.53.48.56.58.49.48.48 "1508:100" |
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87 | // First digit gives number of chars in VRF Name, then it's ASCII |
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88 | [$vrf_oid, $vrf_rd] = explode(' ', $oid); |
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89 | $oid_values = explode('.', $vrf_oid); |
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90 | $vrf_name = ''; |
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91 | for ($i = 1; $i <= $oid_values[0]; $i++) { |
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92 | $vrf_name .= chr($oid_values[$i]); |
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93 | } |
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94 | |||||
95 | // Some VRP versions output VRF RD values as Null terminated Hex-STRING rather than string. |
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96 | // This has to be converted to decimal |
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97 | if ($device['os'] == 'vrp' && preg_match('/^([^ ]+) +(([^ ]+) +.*) 00/', $oid, $matches)) { |
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98 | //.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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99 | // regexp result => 5.116.101.115.116.49 -- 36 35 33 30 31 3A 31 -- 00 |
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100 | d_echo(" [DEBUG] VRP: RD HexString handling: $matches[2]"); |
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101 | $hex_vrf_rd = str_replace(' ', '', $matches[2]); |
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102 | $vrf_rd = hex2str($hex_vrf_rd); |
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103 | d_echo("\n [DEBUG] VRP: RD : $hex_vrf_rd -> $vrf_rd"); |
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104 | } |
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105 | |||||
106 | // Brocade Ironware outputs VRF RD values as Hex-STRING rather than string. This has to be converted to decimal |
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107 | if ($device['os'] == 'ironware') { |
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108 | $vrf_rd = substr($oid, -24); // Grab last 24 characters from $oid, which is the RD hex value |
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109 | $vrf_rd = str_replace(' ', '', $vrf_rd); // Remove whitespace |
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110 | $vrf_rd = str_split($vrf_rd, 8); // Split it into an array, with an object for each half of the RD |
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111 | $vrf_rd[0] = hexdec($vrf_rd[0]); // Convert first object to decimal |
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112 | $vrf_rd[1] = hexdec($vrf_rd[1]); // Convert second object to deciamal |
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113 | $vrf_rd = implode(':', $vrf_rd); // Combine back into string, delimiter by colon |
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0 ignored issues
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It seems like
$vrf_rd can also be of type true ; however, parameter $pieces of implode() does only seem to accept array , maybe add an additional type check?
(
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If this is a false-positive, you can also ignore this issue in your code via the
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114 | } elseif (empty($descr_oid)) { |
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115 | // Move rd to vrf_name and remove rd (no way to grab these values with CISCO-VRF-MIB) |
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116 | $vrf_name = $vrf_rd; |
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117 | unset($vrf_rd); |
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118 | } |
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119 | |||||
120 | echo "\n [VRF $vrf_name] OID - $vrf_oid"; |
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121 | echo "\n [VRF $vrf_name] RD - $vrf_rd"; |
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122 | echo "\n [VRF $vrf_name] DESC - " . $descr_table[$vrf_oid]; |
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123 | |||||
124 | if (dbFetchCell('SELECT COUNT(*) FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid])) { |
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125 | dbUpdate(['vrf_name' => $vrf_name, 'mplsVpnVrfDescription' => $descr_table[$vrf_oid], 'mplsVpnVrfRouteDistinguisher' => $vrf_rd], 'vrfs', 'device_id=? AND vrf_oid=?', [$device['device_id'], $vrf_oid]); |
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126 | } else { |
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127 | 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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128 | } |
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129 | |||||
130 | $vrf_id = dbFetchCell('SELECT vrf_id FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid]); |
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131 | $valid_vrf[$vrf_id] = 1; |
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132 | |||||
133 | echo "\n [VRF $vrf_name] PORTS - "; |
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134 | foreach ($port_table[$vrf_oid] as $if_id) { |
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135 | $interface = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', [$device['device_id'], $if_id]); |
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136 | echo makeshortif($interface['ifDescr']) . ' '; |
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137 | dbUpdate(['ifVrf' => $vrf_id], 'ports', 'port_id=?', [$interface['port_id']]); |
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138 | $if = $interface['port_id']; |
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139 | $valid_vrf_if[$vrf_id][$if] = 1; |
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140 | } |
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141 | }//end if |
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142 | }//end foreach |
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143 | } elseif ($device['os_group'] == 'nokia') { |
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144 | unset($vrf_count); |
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145 | |||||
146 | $vrtr = snmpwalk_cache_oid($device, 'vRtrConfTable', [], 'TIMETRA-VRTR-MIB'); |
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147 | $port_table = snmpwalk_cache_twopart_oid($device, 'vRtrIfName', [], 'TIMETRA-VRTR-MIB'); |
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148 | |||||
149 | foreach ($vrtr as $vrf_oid => $vr) { |
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150 | $vrf_name = $vr['vRtrName']; |
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151 | $vrf_desc = $vr['vRtrName']; |
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152 | $vrf_as = $vr['vRtrAS4Byte']; |
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153 | $vrf_rd = $vr['vRtrRouteDistinguisher']; |
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154 | // Nokia, The VPRN route distinguisher is a 8-octet object. |
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155 | // 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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156 | // Type 0 specifies two subfields as a 2-octet administrative field and a 4-octet assigned number subfield. |
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157 | // 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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158 | // 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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159 | // FIXME Hardcoded to Type 0 |
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160 | $vrf_rd = str_replace(' ', '', $vrf_rd); |
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161 | if ($vrf_rd != '000000000000') { |
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162 | $vrf_rd_1 = substr($vrf_rd, 4, 4); |
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163 | $vrf_rd_2 = substr($vrf_rd, 8); |
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164 | $vrf_rd = hexdec($vrf_rd_1) . ':' . hexdec($vrf_rd_2); |
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165 | } else { |
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166 | $vrf_rd = null; |
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167 | } |
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168 | |||||
169 | echo "\n [VRF $vrf_name] OID - $vrf_oid"; |
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170 | echo "\n [VRF $vrf_name] RD - $vrf_rd"; |
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171 | echo "\n [VRF $vrf_name] DESC - $vrf_desc"; |
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172 | |||||
173 | $vrfs = [ |
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174 | 'vrf_oid' => $vrf_oid, |
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175 | 'vrf_name' => $vrf_name, |
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176 | 'bgpLocalAs' => $vrf_as, |
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177 | 'mplsVpnVrfRouteDistinguisher' => $vrf_rd, |
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178 | 'mplsVpnVrfDescription' => $$vrf_desc, |
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179 | 'device_id' => $device['device_id'], |
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180 | ]; |
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181 | |||||
182 | if (dbFetchCell('SELECT COUNT(*) FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid])) { |
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183 | 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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184 | } else { |
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185 | dbInsert($vrfs, 'vrfs'); |
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186 | } |
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187 | |||||
188 | $vrf_id = dbFetchCell('SELECT vrf_id FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid]); |
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189 | $valid_vrf[$vrf_id] = 1; |
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190 | echo "\n [VRF $vrf_name] PORTS - "; |
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191 | foreach ($port_table[$vrf_oid] as $if_index => $if_name) { |
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192 | $interface = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', [$device['device_id'], $if_index]); |
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193 | echo makeshortif($interface['ifDescr']) . ' '; |
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194 | dbUpdate(['ifVrf' => $vrf_id], 'ports', 'port_id=?', [$interface['port_id']]); |
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195 | $if = $interface['port_id']; |
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196 | $valid_vrf_if[$vrf_id][$if] = 1; |
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197 | } |
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198 | } //end foreach |
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199 | } elseif ($device['os_group'] == 'arista') { |
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200 | echo "Arista\n"; |
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201 | unset($vrf_count); |
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202 | |||||
203 | $aristaVrfTable = snmpwalk_cache_oid($device, 'aristaVrfTable', [], 'ARISTA-VRF-MIB'); |
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204 | $aristaVrfIfTable = snmpwalk_cache_oid($device, 'aristaVrfIfTable', [], 'ARISTA-VRF-MIB'); |
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205 | d_echo($aristaVrfTable); |
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206 | d_echo($aristaVrfIfTable); |
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207 | |||||
208 | foreach ($aristaVrfTable as $vrf_name => $vrf_data) { |
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209 | //$vrf_desc = $vr['vRtrName']; |
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210 | //$vrf_as = $vr['vRtrAS4Byte']; |
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211 | $vrf_oid = $vrf_name; |
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212 | $vrf_rd = $vrf_data['aristaVrfRouteDistinguisher']; |
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213 | |||||
214 | echo "\n [VRF $vrf_name] OID - $vrf_oid"; |
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215 | echo "\n [VRF $vrf_name] RD - $vrf_rd"; |
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216 | echo "\n [VRF $vrf_name] DESC - $vrf_desc"; |
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217 | |||||
218 | $vrfs = [ |
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219 | 'vrf_oid' => $vrf_oid, |
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220 | 'vrf_name' => $vrf_name, |
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221 | //'bgpLocalAs' => $vrf_as, |
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222 | 'mplsVpnVrfRouteDistinguisher' => $vrf_rd, |
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223 | //'mplsVpnVrfDescription' => $$vrf_desc, |
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224 | 'device_id' => $device['device_id'], |
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225 | ]; |
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226 | |||||
227 | if (dbFetchCell('SELECT COUNT(*) FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $vrf_oid])) { |
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228 | dbUpdate(['vrf_name' => $vrf_name, 'bgpLocalAs' => $vrf_as, 'mplsVpnVrfRouteDistinguisher' => $vrf_rd, 'mplsVpnVrfDescription' => $vrf_desc], 'vrfs', 'device_id=? AND vrf_oid=?', [$device['device_id'], $vrf_oid]); |
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229 | } else { |
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230 | dbInsert($vrfs, 'vrfs'); |
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231 | } |
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232 | } //end foreach |
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233 | |||||
234 | echo "\n [VRF $vrf_name] PORTS - "; |
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235 | foreach ($aristaVrfIfTable as $if_index => $if_data) { |
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236 | try { |
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237 | $ifVrfName = $if_data['aristaVrfIfMembership']; |
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238 | $vrf_id = dbFetchCell('SELECT vrf_id FROM vrfs WHERE device_id = ? AND `vrf_oid`=?', [$device['device_id'], $ifVrfName]); |
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239 | $valid_vrf[$vrf_id] = 1; |
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240 | $interface = dbFetchRow('SELECT * FROM `ports` WHERE `device_id` = ? AND `ifIndex` = ?', [$device['device_id'], $if_index]); |
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241 | echo makeshortif($interface['ifDescr']) . ' '; |
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242 | dbUpdate(['ifVrf' => $vrf_id], 'ports', 'port_id=?', [$interface['port_id']]); |
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243 | $if = $interface['port_id']; |
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244 | $valid_vrf_if[$vrf_id][$if] = 1; |
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245 | } catch (Exception $e) { |
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246 | continue; |
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247 | } |
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248 | } |
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249 | } //end if |
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250 | |||||
251 | unset( |
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252 | $descr_table, |
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253 | $port_table |
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254 | ); |
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255 | echo "\n"; |
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256 | |||||
257 | $sql = "SELECT * FROM ports WHERE device_id = '" . $device['device_id'] . "'"; |
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258 | foreach (dbFetchRows($sql) as $row) { |
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259 | $if = $row['port_id']; |
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260 | $vrf_id = $row['ifVrf']; |
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261 | if ($row['ifVrf']) { |
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262 | if (! $valid_vrf_if[$vrf_id][$if]) { |
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263 | echo '-'; |
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264 | dbUpdate(['ifVrf' => 'NULL'], 'ports', 'port_id=?', [$if]); |
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265 | } else { |
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266 | echo '.'; |
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267 | } |
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268 | } |
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269 | } |
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270 | |||||
271 | $sql = "SELECT * FROM vrfs WHERE device_id = '" . $device['device_id'] . "'"; |
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272 | foreach (dbFetchRows($sql) as $row) { |
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273 | $vrf_id = $row['vrf_id']; |
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274 | if (! $valid_vrf[$vrf_id]) { |
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275 | echo '-'; |
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276 | dbDelete('vrfs', '`vrf_id` = ?', [$vrf_id]); |
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277 | } else { |
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278 | echo '.'; |
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279 | } |
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280 | } |
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281 | |||||
282 | unset( |
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283 | $valid_vrf_if, |
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284 | $valid_vrf, |
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285 | $row, |
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286 | $sql |
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287 | ); |
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288 | |||||
289 | echo "\n"; |
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290 | } //end if |
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291 |