1 | <?php |
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2 | /* |
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3 | * LibreNMS module to capture statistics from the AT-NTP-MIB |
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4 | * |
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5 | * Copyright (c) 2018 Matt Read <[email protected]> |
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6 | * |
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7 | * This program is free software: you can redistribute it and/or modify it |
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8 | * under the terms of the GNU General Public License as published by the |
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9 | * Free Software Foundation, either version 3 of the License, or (at your |
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10 | * option) any later version. Please see LICENSE.txt at the top level of |
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11 | * the source code distribution for details. |
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12 | */ |
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13 | |||
14 | use LibreNMS\RRD\RrdDefinition; |
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15 | |||
16 | $tmp_module = 'ntp'; |
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17 | |||
18 | $component = new LibreNMS\Component(); |
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19 | $options = []; |
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20 | $options['filter']['type'] = ['=', $tmp_module]; |
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21 | $options['filter']['disabled'] = ['=', 0]; |
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22 | $options['filter']['ignore'] = ['=', 0]; |
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23 | $components = $component->getComponents($device['device_id'], $options); |
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24 | |||
25 | // We only care about our device id. |
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26 | $components = $components[$device['device_id']]; |
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27 | |||
28 | // Only collect SNMP data if we have enabled components |
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29 | if (count($components > 0)) { |
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30 | // Let's gather the stats.. |
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31 | $atNtpAssociationEntry = snmpwalk_group($device, 'atNtpAssociationEntry', 'AT-NTP-MIB'); |
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32 | |||
33 | // Loop through the components and extract the data. |
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34 | foreach ($components as $key => &$array) { |
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35 | $peer = $array['peer']; |
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36 | |||
37 | // Let's make sure the rrd is setup for this class. |
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38 | $rrd_name = ['ntp', $peer]; |
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39 | $rrd_def = RrdDefinition::make() |
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40 | ->addDataset('stratum', 'GAUGE', 0, 16) |
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41 | ->addDataset('offset', 'GAUGE', -1000) |
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42 | ->addDataset('delay', 'GAUGE', -1000) |
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43 | ->addDataset('dispersion', 'GAUGE', -1000); |
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44 | |||
45 | $array['stratum'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationStratum']; |
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46 | // Set the status, 16 = Bad |
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47 | if ($array['stratum'] == 16) { |
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48 | $array['status'] = 2; |
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49 | $array['error'] = 'NTP is not in sync'; |
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50 | } else { |
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51 | $array['status'] = 0; |
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52 | $array['error'] = ''; |
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53 | } |
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54 | |||
55 | // Extract the statistics and update rrd |
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56 | $rrd['stratum'] = $array['stratum']; |
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57 | $rrd['offset'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationOffset']; |
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58 | $rrd['offset'] = str_replace(' milliseconds', '', $rrd['offset']); |
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59 | $rrd['offset'] = $rrd['offset'] / 1000; // Convert to seconds |
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60 | $rrd['delay'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationDelay']; |
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61 | $rrd['delay'] = str_replace(' milliseconds', '', $rrd['delay']); |
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62 | $rrd['delay'] = $rrd['delay'] / 1000; // Convert to seconds |
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63 | $rrd['dispersion'] = $atNtpAssociationEntry[$array['UID']]['atNtpAssociationDisp']; |
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64 | $tags = compact('ntp', 'rrd_name', 'rrd_def', 'peer'); |
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65 | data_update($device, 'ntp', $tags, $rrd); |
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66 | |||
67 | // Let's print some debugging info. |
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68 | d_echo("\n\nComponent: " . $key . "\n"); |
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69 | d_echo(' Index: ' . $array['UID'] . "\n"); |
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70 | d_echo(' Peer: ' . $array['peer'] . ':' . $array['port'] . "\n"); |
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71 | d_echo(' Stratum: atNtpAssociationStratum.' . $array['UID'] . ' = ' . $rrd['stratum'] . "\n"); |
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72 | d_echo(' Offset: atNtpAssociationOffset.' . $array['UID'] . ' = ' . $rrd['offset'] . "\n"); |
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73 | d_echo(' Delay: atNtpAssociationDelay.' . $array['UID'] . ' = ' . $rrd['delay'] . "\n"); |
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74 | d_echo(' Dispersion: atNtpAssociationDisp.' . $array['UID'] . ' = ' . $rrd['dispersion'] . "\n"); |
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75 | |||
76 | // Clean-up after yourself! |
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77 | unset($filename, $rrd_filename, $rrd); |
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78 | } // End foreach components |
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79 | |||
80 | // Write the Components back to the DB. |
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81 | $component->setComponentPrefs($device['device_id'], $components); |
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82 | } // end if count components |
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83 | |||
84 | // Clean-up after yourself! |
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85 | unset($type, $components, $component, $options, $tmp_module); |
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86 |