<?php

/**
 * Observium Network Management and Monitoring System
 *
 * @package        observium
 * @subpackage     poller
 * @copyright  (C) Adam Armstrong
 *
 */

///FIXME. Be rewritten using collect_table()

$netstats_poll = ['ip' => [], 'icmp' => [], 'tcp' => [], 'udp' => [], 'snmp' => []]; // Init array
// IP
$netstats_poll['ip']['mib']    = 'IP-MIB';
$netstats_poll['ip']['graphs'] = ['netstat_ip', 'netstat_ip_frag'];
$netstats_poll['ip']['oids_t'] = ['ipInReceives', 'ipOutRequests'];
$netstats_poll['ip']['oids']   = ['ipForwDatagrams', 'ipInDelivers', 'ipInReceives', 'ipOutRequests', 'ipInDiscards',
                                  'ipOutDiscards', 'ipOutNoRoutes', 'ipReasmReqds', 'ipReasmOKs', 'ipReasmFails',
                                  'ipFragOKs', 'ipFragFails', 'ipFragCreates', 'ipInUnknownProtos', 'ipInHdrErrors', 'ipInAddrErrors'];
// ICMP
$netstats_poll['icmp']['mib']    = 'IP-MIB';
$netstats_poll['icmp']['graphs'] = ['netstat_icmp', 'netstat_icmp_info'];
$netstats_poll['icmp']['oids_t'] = ['icmpInMsgs', 'icmpOutMsgs'];
$netstats_poll['icmp']['oids']   = ['icmpInMsgs', 'icmpOutMsgs', 'icmpInErrors', 'icmpOutErrors', 'icmpInEchos', 'icmpOutEchos',
                                    'icmpInEchoReps', 'icmpOutEchoReps', 'icmpInDestUnreachs', 'icmpOutDestUnreachs', 'icmpInParmProbs',
                                    'icmpInTimeExcds', 'icmpInSrcQuenchs', 'icmpInRedirects', 'icmpInTimestamps', 'icmpInTimestampReps',
                                    'icmpInAddrMasks', 'icmpInAddrMaskReps', 'icmpOutTimeExcds', 'icmpOutParmProbs', 'icmpOutSrcQuenchs',
                                    'icmpOutRedirects', 'icmpOutTimestamps', 'icmpOutTimestampReps', 'icmpOutAddrMasks', 'icmpOutAddrMaskReps'];
// TCP
$netstats_poll['tcp']['mib']    = 'TCP-MIB';
$netstats_poll['tcp']['graphs'] = ['netstat_tcp_stats', 'netstat_tcp_segments', 'netstat_tcp_currestab'];
$netstats_poll['tcp']['oids_t'] = ['tcpInSegs', 'tcpOutSegs'];
$netstats_poll['tcp']['oids']   = ['tcpActiveOpens', 'tcpPassiveOpens', 'tcpAttemptFails', 'tcpEstabResets', 'tcpCurrEstab',
                                   'tcpInSegs', 'tcpOutSegs', 'tcpRetransSegs', 'tcpInErrs', 'tcpOutRsts'];
# 'tcpHCInSegs', 'tcpHCOutSegs' // ? Counter64 = 1,844674407 × 10^19
// UDP
$netstats_poll['udp']['mib']    = 'UDP-MIB';
$netstats_poll['udp']['graphs'] = ['netstat_udp_datagrams', 'netstat_udp_errors'];
$netstats_poll['udp']['oids_t'] = ['udpInDatagrams', 'udpOutDatagrams'];
$netstats_poll['udp']['oids']   = ['udpInDatagrams', 'udpOutDatagrams', 'udpInErrors', 'udpNoPorts'];

// SNMP
$netstats_poll['snmp']['mib']    = 'SNMPv2-MIB';
$netstats_poll['snmp']['graphs'] = ['netstat_snmp_stats', 'netstat_snmp_packets'];
$netstats_poll['snmp']['oids_t'] = ['snmpInPkts', 'snmpOutPkts'];
$netstats_poll['snmp']['oids']   = ['snmpInPkts', 'snmpOutPkts', 'snmpInBadVersions', 'snmpInBadCommunityNames', 'snmpInBadCommunityUses',
                                    'snmpInASNParseErrs', 'snmpInTooBigs', 'snmpInNoSuchNames', 'snmpInBadValues', 'snmpInReadOnlys',
                                    'snmpInGenErrs', 'snmpInTotalReqVars', 'snmpInTotalSetVars', 'snmpInGetRequests', 'snmpInGetNexts',
                                    'snmpInSetRequests', 'snmpInGetResponses', 'snmpInTraps', 'snmpOutTooBigs', 'snmpOutNoSuchNames',
                                    'snmpOutBadValues', 'snmpOutGenErrs', 'snmpOutGetRequests', 'snmpOutGetNexts', 'snmpOutSetRequests',
                                    'snmpOutGetResponses', 'snmpOutTraps', 'snmpSilentDrops', 'snmpProxyDrops'];
$mibs_blacklist                  = get_device_mibs_blacklist($device);

foreach ($netstats_poll as $type => $netstats) {
    // FIXME same as ipSystemStats: shouldn't we just use is_device_mib and make sure those MIBs are assigned to all devices by default?
    // You can't turn them off in the web interface now.
    if (in_array($netstats['mib'], $mibs_blacklist)) {
        continue;
    } // Skip blacklisted MIBs

    $oids = $netstats['oids'];

    if (isset($netstats['oids_t'])) {
        $oids_string = implode('.0 ', $netstats['oids_t']) . '.0';
        $data        = snmp_get_multi_oid($device, $oids_string, [], $netstats['mib']); // get testing oids
        if (!count($data)) {
            continue;
        }

        $oids_string = implode('.0 ', array_diff($oids, $netstats['oids_t'])) . '.0';
        $data        = snmp_get_multi_oid($device, $oids_string, $data, $netstats['mib']);
        $data_array  = $data[0];
    } else {
        $data = snmpwalk_cache_oid($device, $type, [], $netstats['mib']);
        if (!count($data)) {
            continue;
        }
        $data_array = $data[0];
    }

    $rrd_file   = 'netstats-' . $type . '.rrd';
    $rrd_create = '';
    $rrd_update = 'N';
    foreach ($oids as $oid) {
        $oid_ds = truncate($oid, 19, '');
        if ($oid == 'tcpCurrEstab') {
            $rrd_create .= ' DS:' . $oid_ds . ':GAUGE:600:U:4294967295';   // Gauge32 max value 2^32 = 4294967295
        } else {
            $rrd_create .= ' DS:' . $oid_ds . ':COUNTER:600:U:4294967295'; // Counter32 max value 2^32 = 4294967295
        }

        $value      = (is_numeric($data_array[$oid]) ? $data_array[$oid] : 'U');
        $rrd_update .= ':' . $value;
    }
    rrdtool_create($device, $rrd_file, $rrd_create);
    rrdtool_update($device, $rrd_file, $rrd_update);

    foreach ($netstats['graphs'] as $graph) {
        $graphs[$graph] = TRUE;
    }

    print_cli_data(nicecase($type) . " Graphs", implode(" ", $netstats['graphs']), 2);
}

unset($netstats_poll, $netstats, $type, $oids, $oid, $oid_ds, $oids_string,
  $data, $data_array, $rrd_create, $rrd_file, $rrd_update, $value, $mibs_blacklist);

// EOF