Fatal error: Uncaught Error: Call to undefined function get_interfaces_info() in /usr/local/bin/telegraf_pfifgw.php:13

[f22raptorroland]

The telegraf_pfifgw.php in the guide is missing some function definitions.

It is an open issue on OPNsense-Dashboard , but there is a workaround

The guide could be updated if this doesn't get solved soon.

Just wanted to document this here.

Add this code after require_once(..); calls

# Added function get_interface_info. Function was removed from interface.in in OPNsense version 24.1
function get_interfaces_info($include_unlinked = false)
{
    global $config;

    $all_intf_details = legacy_interfaces_details();
    $all_intf_stats = legacy_interface_stats();
    $gateways = new \OPNsense\Routing\Gateways();
    $ifup = legacy_interface_listget('up');
    $result = [];
    $interfaces = legacy_config_get_interfaces(['virtual' => false]);
    $known_interfaces = [];
    foreach (array_keys($interfaces) as $ifdescr) {
        $interfaces[$ifdescr]['if'] = get_real_interface($ifdescr);
        if (!empty($interfaces[$ifdescr]['if'])) {
            $known_interfaces[] = $interfaces[$ifdescr]['if'];
        }
        $interfaces[$ifdescr]['ifv6'] = get_real_interface($ifdescr, 'inet6');
        if (!empty($interfaces[$ifdescr]['ifv6'])) {
            $known_interfaces[] = $interfaces[$ifdescr]['ifv6'];
        }
    }

    if ($include_unlinked) {
        $unassigned_descr = gettext("Unassigned");
        foreach ($all_intf_details as $if => $ifdata) {
            if (!in_array($if, $known_interfaces)) {
                $interfaces[$if] = ["descr" => $unassigned_descr, "if" => $if, "ifv6" => $if, 'unassigned' => true];
            }
        }
    }

    foreach ($interfaces as $ifdescr => $ifinfo) {
        $ifinfo['status'] = in_array($ifinfo['if'], $ifup) ? 'up' : 'down';
        $ifinfo['statusv6'] = in_array($ifinfo['ifv6'], $ifup) ? 'up' : 'down';

        /* undesired side effect of legacy_config_get_interfaces() */
        $ifinfo['ipaddr'] = $ifinfo['ipaddrv6'] = null;

        if (!empty($all_intf_details[$ifinfo['if']])) {
            if (
                isset($all_intf_details[$ifinfo['if']]['status']) &&
                    in_array($all_intf_details[$ifinfo['if']]['status'], array('active', 'running'))
            ) {
                $all_intf_details[$ifinfo['if']]['status'] = $ifinfo['status'];
            }
            $ifinfo = array_merge($ifinfo, $all_intf_details[$ifinfo['if']]);
        }

        if (!empty($ifinfo['ipv4'])) {
            list ($primary4,, $bits4) = interfaces_primary_address($ifdescr, $all_intf_details);
            if (!empty($primary4)) {
                $ifinfo['ipaddr'] = $primary4;
                $ifinfo['subnet'] = $bits4;
            } else {
                $ifinfo['ipaddr'] = $ifinfo['ipv4'][0]['ipaddr'];
                $ifinfo['subnet'] = $ifinfo['ipv4'][0]['subnetbits'];
            }
        }

        if (!empty($all_intf_details[$ifinfo['ifv6']]['ipv6'])) {
            /* rewrite always as it can be a different interface */
            $ifinfo['ipv6'] = $all_intf_details[$ifinfo['ifv6']]['ipv6'];
        } elseif ($ifinfo['if'] != !$ifinfo['ifv6']) {
            /* clear on a mismatch to avoid wrong data here */
            $ifinfo['ipv6'] = [];
        }

        if (!empty($ifinfo['ipv6'])) {
            list ($primary6,, $bits6) = interfaces_primary_address6($ifdescr, $all_intf_details);
            if (!empty($primary6)) {
                $ifinfo['ipaddrv6'] = $primary6;
                $ifinfo['subnetv6'] = $bits6;
            }
            foreach ($ifinfo['ipv6'] as $ipv6addr) {
                if (!empty($ipv6addr['link-local'])) {
                    $ifinfo['linklocal'] = $ipv6addr['ipaddr'];
                } elseif (empty($ifinfo['ipaddrv6'])) {
                    $ifinfo['ipaddrv6'] = $ipv6addr['ipaddr'];
                    $ifinfo['subnetv6'] = $ipv6addr['subnetbits'];
                }
            }

            $aux = shell_safe('/usr/local/sbin/ifctl -6pi %s', $ifinfo['ifv6']);
            if (!empty($aux)) {
                $ifinfo['prefixv6'] = explode("\n", $aux);
            }
        }

        $ifinfotmp = $all_intf_stats[$ifinfo['if']];
        $ifinfo['inbytes'] = $ifinfotmp['bytes received'];
        $ifinfo['outbytes'] = $ifinfotmp['bytes transmitted'];
        $ifinfo['inpkts'] = $ifinfotmp['packets received'];
        $ifinfo['outpkts'] = $ifinfotmp['packets transmitted'];
        $ifinfo['inerrs'] = $ifinfotmp['input errors'];
        $ifinfo['outerrs'] = $ifinfotmp['output errors'];
        $ifinfo['collisions'] = $ifinfotmp['collisions'];

        $link_type = $config['interfaces'][$ifdescr]['ipaddr'] ?? 'none';
        switch ($link_type) {
            case 'dhcp':
                $ifinfo['dhcplink'] = isvalidpid("/var/run/dhclient.{$ifinfo['if']}.pid") ? 'up' : 'down';
                break;
            /* PPPoE/PPTP/L2TP interface? -> get status from virtual interface */
            case 'pppoe':
            case 'pptp':
            case 'l2tp':
                if ($ifinfo['status'] == "up") {
                    /* XXX get PPPoE link status for dial on demand */
                    $ifinfo["{$link_type}link"] = "up";
                } else {
                    $ifinfo["{$link_type}link"] = "down";
                }
                break;
            /* PPP interface? -> get uptime for this session and cumulative uptime from the persistent log file in conf */
            case 'ppp':
                if ($ifinfo['status'] == "up") {
                    $ifinfo['ppplink'] = "up";
                } else {
                    $ifinfo['ppplink'] = "down";
                }

                if (empty($ifinfo['status'])) {
                    $ifinfo['status'] = "down";
                }

                if (isset($config['ppps']['ppp'])) {
                    foreach ($config['ppps']['ppp'] as $pppid => $ppp) {
                        if ($config['interfaces'][$ifdescr]['if'] == $ppp['if']) {
                            break;
                        }
                    }
                }
                if ($config['interfaces'][$ifdescr]['if'] != $ppp['if'] || empty($ppp['ports'])) {
                    break;
                }
                if (!file_exists($ppp['ports'])) {
                    $ifinfo['nodevice'] = 1;
                    $ifinfo['pppinfo'] = $ppp['ports'] . " " . gettext("device not present! Is the modem attached to the system?");
                }

                // Calculate cumulative uptime for PPP link. Useful for connections that have per minute/hour contracts so you don't go over!
                if (isset($ppp['uptime'])) {
                    $ifinfo['ppp_uptime_accumulated'] = "(" . get_ppp_uptime($ifinfo['if']) . ")";
                }
                break;
            default:
                break;
        }

        if (file_exists("/var/run/{$link_type}_{$ifdescr}.pid")) {
            $sec = intval(shell_safe('/usr/local/opnsense/scripts/interfaces/ppp-uptime.sh %s', $ifinfo['if']));
            if ($sec) {
                $ifinfo['ppp_uptime'] = convert_seconds_to_hms($sec);
            }
        }

        switch ($config['interfaces'][$ifdescr]['ipaddrv6'] ?? 'none') {
            case 'dhcp6':
                $ifinfo['dhcp6link'] = isvalidpid('/var/run/dhcp6c.pid') && file_exists("/var/etc/dhcp6c_{$ifdescr}.conf") ? 'up' : 'down';
                break;
            /* XXX more to do here in the future */
            default:
                break;
        }

        if ($ifinfo['status'] == "up") {
            $wifconfiginfo = array();
            if (isset($config['interfaces'][$ifdescr]['wireless'])) {
                exec("/sbin/ifconfig {$ifinfo['if']} list sta", $wifconfiginfo);
                array_shift($wifconfiginfo);
            }
            foreach ($wifconfiginfo as $ici) {
                $elements = preg_split("/[ ]+/i", $ici);
                if ($elements[0] != "") {
                    $ifinfo['bssid'] = $elements[0];
                }
                if ($elements[3] != "") {
                    $ifinfo['rate'] = $elements[3];
                }
                if ($elements[4] != "") {
                    $ifinfo['rssi'] = $elements[4];
                }
            }
            $gateway = $gateways->getInterfaceGateway($ifdescr, 'inet');
            if (!empty($gateway)) {
                $ifinfo['gateway'] = $gateway;
            }
            $gatewayv6 = $gateways->getInterfaceGateway($ifdescr, 'inet6');
            if (!empty($gatewayv6)) {
                $ifinfo['gatewayv6'] = $gatewayv6;
            }
        }

        $bridge = link_interface_to_bridge($ifdescr);
        if ($bridge) {
            $bridge_text = shell_safe('/sbin/ifconfig %s', $bridge);
            if (stristr($bridge_text, 'blocking') != false) {
                $ifinfo['bridge'] = "<b><span class='text-danger'>" . gettext("blocking") . "</span></b> - " . gettext("check for ethernet loops");
                $ifinfo['bridgeint'] = $bridge;
            } elseif (stristr($bridge_text, 'learning') != false) {
                $ifinfo['bridge'] = gettext("learning");
                $ifinfo['bridgeint'] = $bridge;
            } elseif (stristr($bridge_text, 'forwarding') != false) {
                $ifinfo['bridge'] = gettext("forwarding");
                $ifinfo['bridgeint'] = $bridge;
            }
        }

        $result[$ifdescr] = $ifinfo;
    }

    return $result;
}