Ejemplo n.º 1
0
int do_proc_net_snmp(int update_every, usec_t dt) {
    (void)dt;

    static procfile *ff = NULL;
    static int do_ip_packets = -1, do_ip_fragsout = -1, do_ip_fragsin = -1, do_ip_errors = -1,
        do_tcp_sockets = -1, do_tcp_packets = -1, do_tcp_errors = -1, do_tcp_handshake = -1,
        do_udp_packets = -1, do_udp_errors = -1, do_icmp_packets = -1, do_icmpmsg = -1, do_udplite_packets = -1;
    static uint32_t hash_ip = 0, hash_icmp = 0, hash_tcp = 0, hash_udp = 0, hash_icmpmsg = 0, hash_udplite = 0;

    //static unsigned long long *ip_Forwarding = NULL;
    //static unsigned long long *ip_DefaultTTL = NULL;
    static unsigned long long *ip_InReceives = NULL;
    static unsigned long long *ip_InHdrErrors = NULL;
    static unsigned long long *ip_InAddrErrors = NULL;
    static unsigned long long *ip_ForwDatagrams = NULL;
    static unsigned long long *ip_InUnknownProtos = NULL;
    static unsigned long long *ip_InDiscards = NULL;
    static unsigned long long *ip_InDelivers = NULL;
    static unsigned long long *ip_OutRequests = NULL;
    static unsigned long long *ip_OutDiscards = NULL;
    static unsigned long long *ip_OutNoRoutes = NULL;
    //static unsigned long long *ip_ReasmTimeout = NULL;
    static unsigned long long *ip_ReasmReqds = NULL;
    static unsigned long long *ip_ReasmOKs = NULL;
    static unsigned long long *ip_ReasmFails = NULL;
    static unsigned long long *ip_FragOKs = NULL;
    static unsigned long long *ip_FragFails = NULL;
    static unsigned long long *ip_FragCreates = NULL;

    static unsigned long long *icmp_InMsgs = NULL;
    static unsigned long long *icmp_OutMsgs = NULL;
    static unsigned long long *icmp_InErrors = NULL;
    static unsigned long long *icmp_OutErrors = NULL;
    static unsigned long long *icmp_InCsumErrors = NULL;

    //static unsigned long long *tcp_RtoAlgorithm = NULL;
    //static unsigned long long *tcp_RtoMin = NULL;
    //static unsigned long long *tcp_RtoMax = NULL;
    //static unsigned long long *tcp_MaxConn = NULL;
    static unsigned long long *tcp_ActiveOpens = NULL;
    static unsigned long long *tcp_PassiveOpens = NULL;
    static unsigned long long *tcp_AttemptFails = NULL;
    static unsigned long long *tcp_EstabResets = NULL;
    static unsigned long long *tcp_CurrEstab = NULL;
    static unsigned long long *tcp_InSegs = NULL;
    static unsigned long long *tcp_OutSegs = NULL;
    static unsigned long long *tcp_RetransSegs = NULL;
    static unsigned long long *tcp_InErrs = NULL;
    static unsigned long long *tcp_OutRsts = NULL;
    static unsigned long long *tcp_InCsumErrors = NULL;

    static unsigned long long *udp_InDatagrams = NULL;
    static unsigned long long *udp_NoPorts = NULL;
    static unsigned long long *udp_InErrors = NULL;
    static unsigned long long *udp_OutDatagrams = NULL;
    static unsigned long long *udp_RcvbufErrors = NULL;
    static unsigned long long *udp_SndbufErrors = NULL;
    static unsigned long long *udp_InCsumErrors = NULL;
    static unsigned long long *udp_IgnoredMulti = NULL;

    static unsigned long long *udplite_InDatagrams = NULL;
    static unsigned long long *udplite_NoPorts = NULL;
    static unsigned long long *udplite_InErrors = NULL;
    static unsigned long long *udplite_OutDatagrams = NULL;
    static unsigned long long *udplite_RcvbufErrors = NULL;
    static unsigned long long *udplite_SndbufErrors = NULL;
    static unsigned long long *udplite_InCsumErrors = NULL;
    static unsigned long long *udplite_IgnoredMulti = NULL;

    if(unlikely(do_ip_packets == -1)) {
        do_ip_packets       = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 packets", 1);
        do_ip_fragsout      = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 fragments sent", 1);
        do_ip_fragsin       = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 fragments assembly", 1);
        do_ip_errors        = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 errors", 1);
        do_tcp_sockets      = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 TCP connections", 1);
        do_tcp_packets      = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 TCP packets", 1);
        do_tcp_errors       = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 TCP errors", 1);
        do_tcp_handshake    = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 TCP handshake issues", 1);
        do_udp_packets      = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 UDP packets", 1);
        do_udp_errors       = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 UDP errors", 1);
        do_icmp_packets     = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 ICMP packets", 1);
        do_icmpmsg          = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 ICMP messages", 1);
        do_udplite_packets  = config_get_boolean("plugin:proc:/proc/net/snmp", "ipv4 UDPLite packets", 1);

        hash_ip = simple_hash("Ip");
        hash_tcp = simple_hash("Tcp");
        hash_udp = simple_hash("Udp");
        hash_icmp = simple_hash("Icmp");
        hash_icmpmsg = simple_hash("IcmpMsg");
        hash_udplite = simple_hash("UdpLite");

        hash_array(ip_data);
        hash_array(tcp_data);
        hash_array(udp_data);
        hash_array(icmp_data);
        hash_array(icmpmsg_data);
        hash_array(udplite_data);

        //ip_Forwarding = netstat_columns_find(ip_data, "Forwarding");
        //ip_DefaultTTL = netstat_columns_find(ip_data, "DefaultTTL");
        ip_InReceives = netstat_columns_find(ip_data, "InReceives");
        ip_InHdrErrors = netstat_columns_find(ip_data, "InHdrErrors");
        ip_InAddrErrors = netstat_columns_find(ip_data, "InAddrErrors");
        ip_ForwDatagrams = netstat_columns_find(ip_data, "ForwDatagrams");
        ip_InUnknownProtos = netstat_columns_find(ip_data, "InUnknownProtos");
        ip_InDiscards = netstat_columns_find(ip_data, "InDiscards");
        ip_InDelivers = netstat_columns_find(ip_data, "InDelivers");
        ip_OutRequests = netstat_columns_find(ip_data, "OutRequests");
        ip_OutDiscards = netstat_columns_find(ip_data, "OutDiscards");
        ip_OutNoRoutes = netstat_columns_find(ip_data, "OutNoRoutes");
        //ip_ReasmTimeout = netstat_columns_find(ip_data, "ReasmTimeout");
        ip_ReasmReqds = netstat_columns_find(ip_data, "ReasmReqds");
        ip_ReasmOKs = netstat_columns_find(ip_data, "ReasmOKs");
        ip_ReasmFails = netstat_columns_find(ip_data, "ReasmFails");
        ip_FragOKs = netstat_columns_find(ip_data, "FragOKs");
        ip_FragFails = netstat_columns_find(ip_data, "FragFails");
        ip_FragCreates = netstat_columns_find(ip_data, "FragCreates");

        icmp_InMsgs = netstat_columns_find(icmp_data, "InMsgs");
        icmp_OutMsgs = netstat_columns_find(icmp_data, "OutMsgs");
        icmp_InErrors = netstat_columns_find(icmp_data, "InErrors");
        icmp_OutErrors = netstat_columns_find(icmp_data, "OutErrors");
        icmp_InCsumErrors = netstat_columns_find(icmp_data, "InCsumErrors");

        //tcp_RtoAlgorithm = netstat_columns_find(tcp_data, "RtoAlgorithm");
        //tcp_RtoMin = netstat_columns_find(tcp_data, "RtoMin");
        //tcp_RtoMax = netstat_columns_find(tcp_data, "RtoMax");
        //tcp_MaxConn = netstat_columns_find(tcp_data, "MaxConn");
        tcp_ActiveOpens = netstat_columns_find(tcp_data, "ActiveOpens");
        tcp_PassiveOpens = netstat_columns_find(tcp_data, "PassiveOpens");
        tcp_AttemptFails = netstat_columns_find(tcp_data, "AttemptFails");
        tcp_EstabResets = netstat_columns_find(tcp_data, "EstabResets");
        tcp_CurrEstab = netstat_columns_find(tcp_data, "CurrEstab");
        tcp_InSegs = netstat_columns_find(tcp_data, "InSegs");
        tcp_OutSegs = netstat_columns_find(tcp_data, "OutSegs");
        tcp_RetransSegs = netstat_columns_find(tcp_data, "RetransSegs");
        tcp_InErrs = netstat_columns_find(tcp_data, "InErrs");
        tcp_OutRsts = netstat_columns_find(tcp_data, "OutRsts");
        tcp_InCsumErrors = netstat_columns_find(tcp_data, "InCsumErrors");

        udp_InDatagrams = netstat_columns_find(udp_data, "InDatagrams");
        udp_NoPorts = netstat_columns_find(udp_data, "NoPorts");
        udp_InErrors = netstat_columns_find(udp_data, "InErrors");
        udp_OutDatagrams = netstat_columns_find(udp_data, "OutDatagrams");
        udp_RcvbufErrors = netstat_columns_find(udp_data, "RcvbufErrors");
        udp_SndbufErrors = netstat_columns_find(udp_data, "SndbufErrors");
        udp_InCsumErrors = netstat_columns_find(udp_data, "InCsumErrors");
        udp_IgnoredMulti = netstat_columns_find(udp_data, "IgnoredMulti");

        udplite_InDatagrams = netstat_columns_find(udplite_data, "InDatagrams");
        udplite_NoPorts = netstat_columns_find(udplite_data, "NoPorts");
        udplite_InErrors = netstat_columns_find(udplite_data, "InErrors");
        udplite_OutDatagrams = netstat_columns_find(udplite_data, "OutDatagrams");
        udplite_RcvbufErrors = netstat_columns_find(udplite_data, "RcvbufErrors");
        udplite_SndbufErrors = netstat_columns_find(udplite_data, "SndbufErrors");
        udplite_InCsumErrors = netstat_columns_find(udplite_data, "InCsumErrors");
        udplite_IgnoredMulti = netstat_columns_find(udplite_data, "IgnoredMulti");
    }

    if(unlikely(!ff)) {
        char filename[FILENAME_MAX + 1];
        snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/net/snmp");
        ff = procfile_open(config_get("plugin:proc:/proc/net/snmp", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
        if(unlikely(!ff)) return 1;
    }

    ff = procfile_readall(ff);
    if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time

    size_t lines = procfile_lines(ff), l;
    size_t words;

    RRDSET *st;

    for(l = 0; l < lines ;l++) {
        char *key = procfile_lineword(ff, l, 0);
        uint32_t hash = simple_hash(key);

        if(unlikely(hash == hash_ip && strcmp(key, "Ip") == 0)) {
            size_t h = l++;

            if(strcmp(procfile_lineword(ff, l, 0), "Ip") != 0) {
                error("Cannot read Ip line from /proc/net/snmp.");
                break;
            }

            words = procfile_linewords(ff, l);
            if(words < 3) {
                error("Cannot read /proc/net/snmp Ip line. Expected 3+ params, read %zu.", words);
                continue;
            }

            // see also http://net-snmp.sourceforge.net/docs/mibs/ip.html
            parse_line_pair(ff, ip_data, h, l);

            // --------------------------------------------------------------------

            if(do_ip_packets) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".packets");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "packets", NULL, "packets", NULL, "IPv4 Packets"
                                                 , "packets/s", 3000, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "InReceives",    "received",  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutRequests",   "sent",     -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "ForwDatagrams", "forwarded", 1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InDelivers",    "delivered", 1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "OutRequests",   *ip_OutRequests);
                rrddim_set(st, "InReceives",    *ip_InReceives);
                rrddim_set(st, "ForwDatagrams", *ip_ForwDatagrams);
                rrddim_set(st, "InDelivers",    *ip_InDelivers);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_ip_fragsout) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".fragsout");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "fragsout", NULL, "fragments", NULL
                                                 , "IPv4 Fragments Sent", "packets/s", 3010, update_every
                                                 , RRDSET_TYPE_LINE);
                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);

                    rrddim_add(st, "FragOKs",     "ok",      1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "FragFails",   "failed", -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "FragCreates", "created", 1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "FragOKs",     *ip_FragOKs);
                rrddim_set(st, "FragFails",   *ip_FragFails);
                rrddim_set(st, "FragCreates", *ip_FragCreates);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_ip_fragsin) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".fragsin");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "fragsin", NULL, "fragments", NULL
                                                 , "IPv4 Fragments Reassembly", "packets/s", 3011, update_every
                                                 , RRDSET_TYPE_LINE);
                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);

                    rrddim_add(st, "ReasmOKs",   "ok",      1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "ReasmFails", "failed", -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "ReasmReqds", "all",     1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "ReasmOKs",   *ip_ReasmOKs);
                rrddim_set(st, "ReasmFails", *ip_ReasmFails);
                rrddim_set(st, "ReasmReqds", *ip_ReasmReqds);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_ip_errors) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".errors");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "errors", NULL, "errors", NULL, "IPv4 Errors"
                                                 , "packets/s", 3002, update_every, RRDSET_TYPE_LINE);
                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);

                    rrddim_add(st, "InDiscards",      NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutDiscards",     NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);

                    rrddim_add(st, "InHdrErrors",     NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutNoRoutes",     NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);

                    rrddim_add(st, "InAddrErrors",    NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InUnknownProtos", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InDiscards",      *ip_InDiscards);
                rrddim_set(st, "OutDiscards",     *ip_OutDiscards);
                rrddim_set(st, "InHdrErrors",     *ip_InHdrErrors);
                rrddim_set(st, "InAddrErrors",    *ip_InAddrErrors);
                rrddim_set(st, "InUnknownProtos", *ip_InUnknownProtos);
                rrddim_set(st, "OutNoRoutes",     *ip_OutNoRoutes);
                rrdset_done(st);
            }
        }
        else if(unlikely(hash == hash_icmp && strcmp(key, "Icmp") == 0)) {
            size_t h = l++;

            if(strcmp(procfile_lineword(ff, l, 0), "Icmp") != 0) {
                error("Cannot read Icmp line from /proc/net/snmp.");
                break;
            }

            words = procfile_linewords(ff, l);
            if(words < 3) {
                error("Cannot read /proc/net/snmp Icmp line. Expected 3+ params, read %zu.", words);
                continue;
            }

            parse_line_pair(ff, icmp_data, h, l);

            // --------------------------------------------------------------------

            if(do_icmp_packets) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".icmp");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "icmp", NULL, "icmp", NULL, "IPv4 ICMP Packets"
                                                 , "packets/s", 2602, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "InMsgs",  "received",  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutMsgs", "sent",     -1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InMsgs",  *icmp_InMsgs);
                rrddim_set(st, "OutMsgs", *icmp_OutMsgs);

                rrdset_done(st);

                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".icmp_errors");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "icmp_errors", NULL, "icmp", NULL
                                                 , "IPv4 ICMP Errors", "packets/s", 2603, update_every
                                                 , RRDSET_TYPE_LINE);

                    rrddim_add(st, "InErrors",     NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutErrors",    NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InCsumErrors", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InErrors",     *icmp_InErrors);
                rrddim_set(st, "OutErrors",    *icmp_OutErrors);
                rrddim_set(st, "InCsumErrors", *icmp_InCsumErrors);

                rrdset_done(st);
            }
        }
        else if(unlikely(hash == hash_icmpmsg && strcmp(key, "IcmpMsg") == 0)) {
            size_t h = l++;

            if(strcmp(procfile_lineword(ff, l, 0), "IcmpMsg") != 0) {
                error("Cannot read IcmpMsg line from /proc/net/snmp.");
                break;
            }

            parse_line_pair(ff, icmpmsg_data, h, l);

            // --------------------------------------------------------------------

            if(do_icmpmsg) {
                int i;

                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".icmpmsg");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "icmpmsg", NULL, "icmp", NULL, "IPv4 ICMP Messages"
                                                 , "packets/s", 2604, update_every, RRDSET_TYPE_LINE);

                    for(i = 0; icmpmsg_data[i].name ;i++)
                        rrddim_add(st, icmpmsg_data[i].name, icmpmsg_data[i].label,  icmpmsg_data[i].multiplier, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                for(i = 0; icmpmsg_data[i].name ;i++)
                    rrddim_set(st, icmpmsg_data[i].name, icmpmsg_data[i].value);

                rrdset_done(st);
            }
        }
        else if(unlikely(hash == hash_tcp && strcmp(key, "Tcp") == 0)) {
            size_t h = l++;

            if(strcmp(procfile_lineword(ff, l, 0), "Tcp") != 0) {
                error("Cannot read Tcp line from /proc/net/snmp.");
                break;
            }

            words = procfile_linewords(ff, l);
            if(words < 3) {
                error("Cannot read /proc/net/snmp Tcp line. Expected 3+ params, read %zu.", words);
                continue;
            }

            parse_line_pair(ff, tcp_data, h, l);

            // --------------------------------------------------------------------

            // see http://net-snmp.sourceforge.net/docs/mibs/tcp.html
            if(do_tcp_sockets) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".tcpsock");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "tcpsock", NULL, "tcp", NULL, "IPv4 TCP Connections"
                                                 , "active connections", 2500, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "CurrEstab", "connections", 1, 1, RRD_ALGORITHM_ABSOLUTE);
                }
                else rrdset_next(st);

                rrddim_set(st, "CurrEstab", *tcp_CurrEstab);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_tcp_packets) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".tcppackets");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "tcppackets", NULL, "tcp", NULL, "IPv4 TCP Packets"
                                                 , "packets/s", 2600, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "InSegs",  "received", 1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutSegs", "sent",    -1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InSegs",  *tcp_InSegs);
                rrddim_set(st, "OutSegs", *tcp_OutSegs);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_tcp_errors) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".tcperrors");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "tcperrors", NULL, "tcp", NULL, "IPv4 TCP Errors"
                                                 , "packets/s", 2700, update_every, RRDSET_TYPE_LINE);
                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);

                    rrddim_add(st, "InErrs",       NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InCsumErrors", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "RetransSegs",  NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InErrs",       *tcp_InErrs);
                rrddim_set(st, "InCsumErrors", *tcp_InCsumErrors);
                rrddim_set(st, "RetransSegs",  *tcp_RetransSegs);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_tcp_handshake) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".tcphandshake");
                if(!st) {
                    st = rrdset_create_localhost(
                            RRD_TYPE_NET_SNMP
                            , "tcphandshake"
                            , NULL
                            , "tcp"
                            , NULL
                            , "IPv4 TCP Handshake Issues"
                            , "events/s"
                            , 2900
                            , update_every
                            , RRDSET_TYPE_LINE
                    );
                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);

                    rrddim_add(st, "EstabResets",   NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutRsts",       NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "ActiveOpens",   NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "PassiveOpens",  NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "AttemptFails",  NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "TCPSynRetrans", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "EstabResets",   *tcp_EstabResets);
                rrddim_set(st, "OutRsts",       *tcp_OutRsts);
                rrddim_set(st, "ActiveOpens",   *tcp_ActiveOpens);
                rrddim_set(st, "PassiveOpens",  *tcp_PassiveOpens);
                rrddim_set(st, "AttemptFails",  *tcp_AttemptFails);
                rrddim_set(st, "TCPSynRetrans", tcpext_TCPSynRetrans);
                rrdset_done(st);
            }
        }
        else if(unlikely(hash == hash_udp && strcmp(key, "Udp") == 0)) {
            size_t h = l++;

            if(strcmp(procfile_lineword(ff, l, 0), "Udp") != 0) {
                error("Cannot read Udp line from /proc/net/snmp.");
                break;
            }

            words = procfile_linewords(ff, l);
            if(words < 3) {
                error("Cannot read /proc/net/snmp Udp line. Expected 3+ params, read %zu.", words);
                continue;
            }

            parse_line_pair(ff, udp_data, h, l);

            // --------------------------------------------------------------------

            // see http://net-snmp.sourceforge.net/docs/mibs/udp.html
            if(do_udp_packets) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".udppackets");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "udppackets", NULL, "udp", NULL, "IPv4 UDP Packets"
                                                 , "packets/s", 2601, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "InDatagrams",  "received", 1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutDatagrams", "sent",    -1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InDatagrams",  *udp_InDatagrams);
                rrddim_set(st, "OutDatagrams", *udp_OutDatagrams);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_udp_errors) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".udperrors");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "udperrors", NULL, "udp", NULL, "IPv4 UDP Errors"
                                                 , "events/s", 2701, update_every, RRDSET_TYPE_LINE);
                    rrdset_flag_set(st, RRDSET_FLAG_DETAIL);

                    rrddim_add(st, "RcvbufErrors", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "SndbufErrors", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InErrors",     NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "NoPorts",      NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InCsumErrors", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "IgnoredMulti", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InErrors",     *udp_InErrors);
                rrddim_set(st, "NoPorts",      *udp_NoPorts);
                rrddim_set(st, "RcvbufErrors", *udp_RcvbufErrors);
                rrddim_set(st, "SndbufErrors", *udp_SndbufErrors);
                rrddim_set(st, "InCsumErrors", *udp_InCsumErrors);
                rrddim_set(st, "IgnoredMulti", *udp_IgnoredMulti);
                rrdset_done(st);
            }
        }
        else if(unlikely(hash == hash_udplite && strcmp(key, "UdpLite") == 0)) {
            size_t h = l++;

            if(strcmp(procfile_lineword(ff, l, 0), "UdpLite") != 0) {
                error("Cannot read UdpLite line from /proc/net/snmp.");
                break;
            }

            words = procfile_linewords(ff, l);
            if(words < 3) {
                error("Cannot read /proc/net/snmp UdpLite line. Expected 3+ params, read %zu.", words);
                continue;
            }

            parse_line_pair(ff, udplite_data, h, l);

            // --------------------------------------------------------------------

            if(do_udplite_packets) {
                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".udplite");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "udplite", NULL, "udplite", NULL
                                                 , "IPv4 UDPLite Packets", "packets/s", 2603, update_every
                                                 , RRDSET_TYPE_LINE);

                    rrddim_add(st, "InDatagrams",  "received", 1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "OutDatagrams", "sent",    -1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InDatagrams",  *udplite_InDatagrams);
                rrddim_set(st, "OutDatagrams", *udplite_OutDatagrams);
                rrdset_done(st);

                st = rrdset_find_localhost(RRD_TYPE_NET_SNMP ".udplite_errors");
                if(!st) {
                    st = rrdset_create_localhost(RRD_TYPE_NET_SNMP, "udplite_errors", NULL, "udplite", NULL
                                                 , "IPv4 UDPLite Errors", "packets/s", 2604, update_every
                                                 , RRDSET_TYPE_LINE);

                    rrddim_add(st, "RcvbufErrors", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "SndbufErrors", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "NoPorts",      NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "IgnoredMulti", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InErrors",     NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                    rrddim_add(st, "InCsumErrors", NULL,  1, 1, RRD_ALGORITHM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "NoPorts",      *udplite_NoPorts);
                rrddim_set(st, "InErrors",     *udplite_InErrors);
                rrddim_set(st, "InCsumErrors", *udplite_InCsumErrors);
                rrddim_set(st, "RcvbufErrors", *udplite_RcvbufErrors);
                rrddim_set(st, "SndbufErrors", *udplite_SndbufErrors);
                rrddim_set(st, "IgnoredMulti", *udplite_IgnoredMulti);
                rrdset_done(st);
            }
        }
    }

    return 0;
}
Ejemplo n.º 2
0
int do_proc_net_netstat(int update_every, usec_t dt) {
    (void)dt;

    static int do_bandwidth = -1, do_inerrors = -1, do_mcast = -1, do_bcast = -1, do_mcast_p = -1, do_bcast_p = -1, do_ecn = -1, \
        do_tcpext_reorder = -1, do_tcpext_syscookies = -1, do_tcpext_ofo = -1, do_tcpext_connaborts = -1, do_tcpext_memory = -1;
    static uint32_t hash_ipext = 0, hash_tcpext = 0;
    static procfile *ff = NULL;

    static unsigned long long *tcpext_TCPRenoReorder = NULL;
    static unsigned long long *tcpext_TCPFACKReorder = NULL;
    static unsigned long long *tcpext_TCPSACKReorder = NULL;
    static unsigned long long *tcpext_TCPTSReorder = NULL;

    static unsigned long long *tcpext_SyncookiesSent = NULL;
    static unsigned long long *tcpext_SyncookiesRecv = NULL;
    static unsigned long long *tcpext_SyncookiesFailed = NULL;

    static unsigned long long *tcpext_TCPOFOQueue = NULL; // Number of packets queued in OFO queue
    static unsigned long long *tcpext_TCPOFODrop = NULL;  // Number of packets meant to be queued in OFO but dropped because socket rcvbuf limit hit.
    static unsigned long long *tcpext_TCPOFOMerge = NULL; // Number of packets in OFO that were merged with other packets.
    static unsigned long long *tcpext_OfoPruned = NULL;   // packets dropped from out-of-order queue because of socket buffer overrun

    static unsigned long long *tcpext_TCPAbortOnData = NULL;    // connections reset due to unexpected data
    static unsigned long long *tcpext_TCPAbortOnClose = NULL;   // connections reset due to early user close
    static unsigned long long *tcpext_TCPAbortOnMemory = NULL;  // connections aborted due to memory pressure
    static unsigned long long *tcpext_TCPAbortOnTimeout = NULL; // connections aborted due to timeout
    static unsigned long long *tcpext_TCPAbortOnLinger = NULL;  // connections aborted after user close in linger timeout
    static unsigned long long *tcpext_TCPAbortFailed = NULL;    // times unable to send RST due to no memory

    static unsigned long long *tcpext_TCPMemoryPressures = NULL;

/*
    // connection rejects
    static unsigned long long *tcpext_PAWSActive = NULL;  // active connections rejected because of time stamp
    static unsigned long long *tcpext_PAWSPassive = NULL; // passive connections rejected because of time stamp

    static unsigned long long *tcpext_TCPTimeouts = NULL;

    static unsigned long long *tcpext_TCPDSACKUndo = NULL;
    static unsigned long long *tcpext_TCPDSACKOldSent = NULL;
    static unsigned long long *tcpext_TCPDSACKOfoSent = NULL;
    static unsigned long long *tcpext_TCPDSACKRecv = NULL;
    static unsigned long long *tcpext_TCPDSACKOfoRecv = NULL;
    static unsigned long long *tcpext_TCPDSACKIgnoredOld = NULL;
    static unsigned long long *tcpext_TCPDSACKIgnoredNoUndo = NULL;


    static unsigned long long *tcpext_EmbryonicRsts = NULL;

    static unsigned long long *tcpext_PruneCalled = NULL;
    static unsigned long long *tcpext_RcvPruned = NULL;
    static unsigned long long *tcpext_OutOfWindowIcmps = NULL;
    static unsigned long long *tcpext_LockDroppedIcmps = NULL;
    static unsigned long long *tcpext_ArpFilter = NULL;

    static unsigned long long *tcpext_TW = NULL;
    static unsigned long long *tcpext_TWRecycled = NULL;
    static unsigned long long *tcpext_TWKilled = NULL;

    static unsigned long long *tcpext_PAWSEstab = NULL;

    static unsigned long long *tcpext_DelayedACKs = NULL;
    static unsigned long long *tcpext_DelayedACKLocked = NULL;
    static unsigned long long *tcpext_DelayedACKLost = NULL;

    static unsigned long long *tcpext_ListenOverflows = NULL;
    static unsigned long long *tcpext_ListenDrops = NULL;

    static unsigned long long *tcpext_TCPPrequeued = NULL;

    static unsigned long long *tcpext_TCPDirectCopyFromBacklog = NULL;
    static unsigned long long *tcpext_TCPDirectCopyFromPrequeue = NULL;
    static unsigned long long *tcpext_TCPPrequeueDropped = NULL;

    static unsigned long long *tcpext_TCPHPHits = NULL;
    static unsigned long long *tcpext_TCPHPHitsToUser = NULL;
    static unsigned long long *tcpext_TCPHPAcks = NULL;

    static unsigned long long *tcpext_TCPPureAcks = NULL;
    static unsigned long long *tcpext_TCPRenoRecovery = NULL;

    static unsigned long long *tcpext_TCPSackRecovery = NULL;
    static unsigned long long *tcpext_TCPSackFailures = NULL;
    static unsigned long long *tcpext_TCPSACKReneging = NULL;
    static unsigned long long *tcpext_TCPSackRecoveryFail = NULL;
    static unsigned long long *tcpext_TCPSACKDiscard = NULL;
    static unsigned long long *tcpext_TCPSackShifted = NULL;
    static unsigned long long *tcpext_TCPSackMerged = NULL;
    static unsigned long long *tcpext_TCPSackShiftFallback = NULL;


    static unsigned long long *tcpext_TCPFullUndo = NULL;
    static unsigned long long *tcpext_TCPPartialUndo = NULL;

    static unsigned long long *tcpext_TCPLossUndo = NULL;
    static unsigned long long *tcpext_TCPLostRetransmit = NULL;

    static unsigned long long *tcpext_TCPRenoFailures = NULL;

    static unsigned long long *tcpext_TCPLossFailures = NULL;
    static unsigned long long *tcpext_TCPFastRetrans = NULL;
    static unsigned long long *tcpext_TCPForwardRetrans = NULL;
    static unsigned long long *tcpext_TCPSlowStartRetrans = NULL;
    static unsigned long long *tcpext_TCPLossProbes = NULL;
    static unsigned long long *tcpext_TCPLossProbeRecovery = NULL;
    static unsigned long long *tcpext_TCPRenoRecoveryFail = NULL;
    static unsigned long long *tcpext_TCPSchedulerFailed = NULL;
    static unsigned long long *tcpext_TCPRcvCollapsed = NULL;

    static unsigned long long *tcpext_TCPSpuriousRTOs = NULL;
    static unsigned long long *tcpext_TCPMD5NotFound = NULL;
    static unsigned long long *tcpext_TCPMD5Unexpected = NULL;

    static unsigned long long *tcpext_TCPBacklogDrop = NULL;
    static unsigned long long *tcpext_TCPMinTTLDrop = NULL;
    static unsigned long long *tcpext_TCPDeferAcceptDrop = NULL;
    static unsigned long long *tcpext_IPReversePathFilter = NULL;
    static unsigned long long *tcpext_TCPTimeWaitOverflow = NULL;
    static unsigned long long *tcpext_TCPReqQFullDoCookies = NULL;
    static unsigned long long *tcpext_TCPReqQFullDrop = NULL;
    static unsigned long long *tcpext_TCPRetransFail = NULL;
    static unsigned long long *tcpext_TCPRcvCoalesce = NULL;

    static unsigned long long *tcpext_TCPChallengeACK = NULL;
    static unsigned long long *tcpext_TCPSYNChallenge = NULL;

    static unsigned long long *tcpext_TCPFastOpenActive = NULL;
    static unsigned long long *tcpext_TCPFastOpenActiveFail = NULL;
    static unsigned long long *tcpext_TCPFastOpenPassive = NULL;
    static unsigned long long *tcpext_TCPFastOpenPassiveFail = NULL;
    static unsigned long long *tcpext_TCPFastOpenListenOverflow = NULL;
    static unsigned long long *tcpext_TCPFastOpenCookieReqd = NULL;

    static unsigned long long *tcpext_TCPSpuriousRtxHostQueues = NULL;
    static unsigned long long *tcpext_BusyPollRxPackets = NULL;
    static unsigned long long *tcpext_TCPAutoCorking = NULL;
    static unsigned long long *tcpext_TCPFromZeroWindowAdv = NULL;
    static unsigned long long *tcpext_TCPToZeroWindowAdv = NULL;
    static unsigned long long *tcpext_TCPWantZeroWindowAdv = NULL;
    static unsigned long long *tcpext_TCPSynRetrans = NULL;
    static unsigned long long *tcpext_TCPOrigDataSent = NULL;

    static unsigned long long *tcpext_TCPHystartTrainDetect = NULL;
    static unsigned long long *tcpext_TCPHystartTrainCwnd = NULL;
    static unsigned long long *tcpext_TCPHystartDelayDetect = NULL;
    static unsigned long long *tcpext_TCPHystartDelayCwnd = NULL;

    static unsigned long long *tcpext_TCPACKSkippedSynRecv = NULL;
    static unsigned long long *tcpext_TCPACKSkippedPAWS = NULL;
    static unsigned long long *tcpext_TCPACKSkippedSeq = NULL;
    static unsigned long long *tcpext_TCPACKSkippedFinWait2 = NULL;
    static unsigned long long *tcpext_TCPACKSkippedTimeWait = NULL;
    static unsigned long long *tcpext_TCPACKSkippedChallenge = NULL;

    static unsigned long long *tcpext_TCPWinProbe = NULL;
    static unsigned long long *tcpext_TCPKeepAlive = NULL;

    static unsigned long long *tcpext_TCPMTUPFail = NULL;
    static unsigned long long *tcpext_TCPMTUPSuccess = NULL;
*/

    static unsigned long long *ipext_InNoRoutes = NULL;
    static unsigned long long *ipext_InTruncatedPkts = NULL;
    static unsigned long long *ipext_InMcastPkts = NULL;
    static unsigned long long *ipext_OutMcastPkts = NULL;
    static unsigned long long *ipext_InBcastPkts = NULL;
    static unsigned long long *ipext_OutBcastPkts = NULL;
    static unsigned long long *ipext_InOctets = NULL;
    static unsigned long long *ipext_OutOctets = NULL;
    static unsigned long long *ipext_InMcastOctets = NULL;
    static unsigned long long *ipext_OutMcastOctets = NULL;
    static unsigned long long *ipext_InBcastOctets = NULL;
    static unsigned long long *ipext_OutBcastOctets = NULL;
    static unsigned long long *ipext_InCsumErrors = NULL;
    static unsigned long long *ipext_InNoECTPkts = NULL;
    static unsigned long long *ipext_InECT1Pkts = NULL;
    static unsigned long long *ipext_InECT0Pkts = NULL;
    static unsigned long long *ipext_InCEPkts = NULL;

    if(unlikely(do_bandwidth == -1)) {
        do_bandwidth = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "bandwidth", CONFIG_ONDEMAND_ONDEMAND);
        do_inerrors  = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "input errors", CONFIG_ONDEMAND_ONDEMAND);
        do_mcast     = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "multicast bandwidth", CONFIG_ONDEMAND_ONDEMAND);
        do_bcast     = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "broadcast bandwidth", CONFIG_ONDEMAND_ONDEMAND);
        do_mcast_p   = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "multicast packets", CONFIG_ONDEMAND_ONDEMAND);
        do_bcast_p   = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "broadcast packets", CONFIG_ONDEMAND_ONDEMAND);
        do_ecn       = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "ECN packets", CONFIG_ONDEMAND_ONDEMAND);

        do_tcpext_reorder    = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "TCP reorders", CONFIG_ONDEMAND_ONDEMAND);
        do_tcpext_syscookies = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "TCP SYN cookies", CONFIG_ONDEMAND_ONDEMAND);
        do_tcpext_ofo        = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "TCP out-of-order queue", CONFIG_ONDEMAND_ONDEMAND);
        do_tcpext_connaborts = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "TCP connection aborts", CONFIG_ONDEMAND_ONDEMAND);
        do_tcpext_memory     = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "TCP memory pressures", CONFIG_ONDEMAND_ONDEMAND);

        hash_ipext = simple_hash("IpExt");
        hash_tcpext = simple_hash("TcpExt");

        hash_array(ipext_data);
        hash_array(tcpext_data);

        // Reordering
        tcpext_TCPFACKReorder = netstat_columns_find(tcpext_data, "TCPFACKReorder");
        tcpext_TCPSACKReorder = netstat_columns_find(tcpext_data, "TCPSACKReorder");
        tcpext_TCPRenoReorder = netstat_columns_find(tcpext_data, "TCPRenoReorder");
        tcpext_TCPTSReorder = netstat_columns_find(tcpext_data, "TCPTSReorder");

        // SYN Cookies
        tcpext_SyncookiesSent = netstat_columns_find(tcpext_data, "SyncookiesSent");
        tcpext_SyncookiesRecv = netstat_columns_find(tcpext_data, "SyncookiesRecv");
        tcpext_SyncookiesFailed = netstat_columns_find(tcpext_data, "SyncookiesFailed");

        // Out Of Order Queue
        // http://www.spinics.net/lists/netdev/msg204696.html
        tcpext_TCPOFOQueue = netstat_columns_find(tcpext_data, "TCPOFOQueue"); // Number of packets queued in OFO queue
        tcpext_TCPOFODrop  = netstat_columns_find(tcpext_data, "TCPOFODrop");  // Number of packets meant to be queued in OFO but dropped because socket rcvbuf limit hit.
        tcpext_TCPOFOMerge = netstat_columns_find(tcpext_data, "TCPOFOMerge"); // Number of packets in OFO that were merged with other packets.
        tcpext_OfoPruned   = netstat_columns_find(tcpext_data, "OfoPruned");   // packets dropped from out-of-order queue because of socket buffer overrun

        // connection resets
        // https://github.com/ecki/net-tools/blob/bd8bceaed2311651710331a7f8990c3e31be9840/statistics.c
        tcpext_TCPAbortOnData    = netstat_columns_find(tcpext_data, "TCPAbortOnData");    // connections reset due to unexpected data
        tcpext_TCPAbortOnClose   = netstat_columns_find(tcpext_data, "TCPAbortOnClose");   // connections reset due to early user close
        tcpext_TCPAbortOnMemory  = netstat_columns_find(tcpext_data, "TCPAbortOnMemory");  // connections aborted due to memory pressure
        tcpext_TCPAbortOnTimeout = netstat_columns_find(tcpext_data, "TCPAbortOnTimeout"); // connections aborted due to timeout
        tcpext_TCPAbortOnLinger  = netstat_columns_find(tcpext_data, "TCPAbortOnLinger");  // connections aborted after user close in linger timeout
        tcpext_TCPAbortFailed    = netstat_columns_find(tcpext_data, "TCPAbortFailed");    // times unable to send RST due to no memory

        tcpext_TCPMemoryPressures = netstat_columns_find(tcpext_data, "TCPMemoryPressures");

        /*
        tcpext_EmbryonicRsts = netstat_columns_find(tcpext_data, "EmbryonicRsts");
        tcpext_PruneCalled = netstat_columns_find(tcpext_data, "PruneCalled");
        tcpext_RcvPruned = netstat_columns_find(tcpext_data, "RcvPruned");
        tcpext_OutOfWindowIcmps = netstat_columns_find(tcpext_data, "OutOfWindowIcmps");
        tcpext_LockDroppedIcmps = netstat_columns_find(tcpext_data, "LockDroppedIcmps");
        tcpext_ArpFilter = netstat_columns_find(tcpext_data, "ArpFilter");
        tcpext_TW = netstat_columns_find(tcpext_data, "TW");
        tcpext_TWRecycled = netstat_columns_find(tcpext_data, "TWRecycled");
        tcpext_TWKilled = netstat_columns_find(tcpext_data, "TWKilled");
        tcpext_PAWSPassive = netstat_columns_find(tcpext_data, "PAWSPassive");
        tcpext_PAWSActive = netstat_columns_find(tcpext_data, "PAWSActive");
        tcpext_PAWSEstab = netstat_columns_find(tcpext_data, "PAWSEstab");
        tcpext_DelayedACKs = netstat_columns_find(tcpext_data, "DelayedACKs");
        tcpext_DelayedACKLocked = netstat_columns_find(tcpext_data, "DelayedACKLocked");
        tcpext_DelayedACKLost = netstat_columns_find(tcpext_data, "DelayedACKLost");
        tcpext_ListenOverflows = netstat_columns_find(tcpext_data, "ListenOverflows");
        tcpext_ListenDrops = netstat_columns_find(tcpext_data, "ListenDrops");
        tcpext_TCPPrequeued = netstat_columns_find(tcpext_data, "TCPPrequeued");
        tcpext_TCPDirectCopyFromBacklog = netstat_columns_find(tcpext_data, "TCPDirectCopyFromBacklog");
        tcpext_TCPDirectCopyFromPrequeue = netstat_columns_find(tcpext_data, "TCPDirectCopyFromPrequeue");
        tcpext_TCPPrequeueDropped = netstat_columns_find(tcpext_data, "TCPPrequeueDropped");
        tcpext_TCPHPHits = netstat_columns_find(tcpext_data, "TCPHPHits");
        tcpext_TCPHPHitsToUser = netstat_columns_find(tcpext_data, "TCPHPHitsToUser");
        tcpext_TCPPureAcks = netstat_columns_find(tcpext_data, "TCPPureAcks");
        tcpext_TCPHPAcks = netstat_columns_find(tcpext_data, "TCPHPAcks");
        tcpext_TCPRenoRecovery = netstat_columns_find(tcpext_data, "TCPRenoRecovery");
        tcpext_TCPSackRecovery = netstat_columns_find(tcpext_data, "TCPSackRecovery");
        tcpext_TCPSACKReneging = netstat_columns_find(tcpext_data, "TCPSACKReneging");
        tcpext_TCPFullUndo = netstat_columns_find(tcpext_data, "TCPFullUndo");
        tcpext_TCPPartialUndo = netstat_columns_find(tcpext_data, "TCPPartialUndo");
        tcpext_TCPDSACKUndo = netstat_columns_find(tcpext_data, "TCPDSACKUndo");
        tcpext_TCPLossUndo = netstat_columns_find(tcpext_data, "TCPLossUndo");
        tcpext_TCPLostRetransmit = netstat_columns_find(tcpext_data, "TCPLostRetransmit");
        tcpext_TCPRenoFailures = netstat_columns_find(tcpext_data, "TCPRenoFailures");
        tcpext_TCPSackFailures = netstat_columns_find(tcpext_data, "TCPSackFailures");
        tcpext_TCPLossFailures = netstat_columns_find(tcpext_data, "TCPLossFailures");
        tcpext_TCPFastRetrans = netstat_columns_find(tcpext_data, "TCPFastRetrans");
        tcpext_TCPForwardRetrans = netstat_columns_find(tcpext_data, "TCPForwardRetrans");
        tcpext_TCPSlowStartRetrans = netstat_columns_find(tcpext_data, "TCPSlowStartRetrans");
        tcpext_TCPTimeouts = netstat_columns_find(tcpext_data, "TCPTimeouts");
        tcpext_TCPLossProbes = netstat_columns_find(tcpext_data, "TCPLossProbes");
        tcpext_TCPLossProbeRecovery = netstat_columns_find(tcpext_data, "TCPLossProbeRecovery");
        tcpext_TCPRenoRecoveryFail = netstat_columns_find(tcpext_data, "TCPRenoRecoveryFail");
        tcpext_TCPSackRecoveryFail = netstat_columns_find(tcpext_data, "TCPSackRecoveryFail");
        tcpext_TCPSchedulerFailed = netstat_columns_find(tcpext_data, "TCPSchedulerFailed");
        tcpext_TCPRcvCollapsed = netstat_columns_find(tcpext_data, "TCPRcvCollapsed");
        tcpext_TCPDSACKOldSent = netstat_columns_find(tcpext_data, "TCPDSACKOldSent");
        tcpext_TCPDSACKOfoSent = netstat_columns_find(tcpext_data, "TCPDSACKOfoSent");
        tcpext_TCPDSACKRecv = netstat_columns_find(tcpext_data, "TCPDSACKRecv");
        tcpext_TCPDSACKOfoRecv = netstat_columns_find(tcpext_data, "TCPDSACKOfoRecv");
        tcpext_TCPSACKDiscard = netstat_columns_find(tcpext_data, "TCPSACKDiscard");
        tcpext_TCPDSACKIgnoredOld = netstat_columns_find(tcpext_data, "TCPDSACKIgnoredOld");
        tcpext_TCPDSACKIgnoredNoUndo = netstat_columns_find(tcpext_data, "TCPDSACKIgnoredNoUndo");
        tcpext_TCPSpuriousRTOs = netstat_columns_find(tcpext_data, "TCPSpuriousRTOs");
        tcpext_TCPMD5NotFound = netstat_columns_find(tcpext_data, "TCPMD5NotFound");
        tcpext_TCPMD5Unexpected = netstat_columns_find(tcpext_data, "TCPMD5Unexpected");
        tcpext_TCPSackShifted = netstat_columns_find(tcpext_data, "TCPSackShifted");
        tcpext_TCPSackMerged = netstat_columns_find(tcpext_data, "TCPSackMerged");
        tcpext_TCPSackShiftFallback = netstat_columns_find(tcpext_data, "TCPSackShiftFallback");
        tcpext_TCPBacklogDrop = netstat_columns_find(tcpext_data, "TCPBacklogDrop");
        tcpext_TCPMinTTLDrop = netstat_columns_find(tcpext_data, "TCPMinTTLDrop");
        tcpext_TCPDeferAcceptDrop = netstat_columns_find(tcpext_data, "TCPDeferAcceptDrop");
        tcpext_IPReversePathFilter = netstat_columns_find(tcpext_data, "IPReversePathFilter");
        tcpext_TCPTimeWaitOverflow = netstat_columns_find(tcpext_data, "TCPTimeWaitOverflow");
        tcpext_TCPReqQFullDoCookies = netstat_columns_find(tcpext_data, "TCPReqQFullDoCookies");
        tcpext_TCPReqQFullDrop = netstat_columns_find(tcpext_data, "TCPReqQFullDrop");
        tcpext_TCPRetransFail = netstat_columns_find(tcpext_data, "TCPRetransFail");
        tcpext_TCPRcvCoalesce = netstat_columns_find(tcpext_data, "TCPRcvCoalesce");
        tcpext_TCPChallengeACK = netstat_columns_find(tcpext_data, "TCPChallengeACK");
        tcpext_TCPSYNChallenge = netstat_columns_find(tcpext_data, "TCPSYNChallenge");
        tcpext_TCPFastOpenActive = netstat_columns_find(tcpext_data, "TCPFastOpenActive");
        tcpext_TCPFastOpenActiveFail = netstat_columns_find(tcpext_data, "TCPFastOpenActiveFail");
        tcpext_TCPFastOpenPassive = netstat_columns_find(tcpext_data, "TCPFastOpenPassive");
        tcpext_TCPFastOpenPassiveFail = netstat_columns_find(tcpext_data, "TCPFastOpenPassiveFail");
        tcpext_TCPFastOpenListenOverflow = netstat_columns_find(tcpext_data, "TCPFastOpenListenOverflow");
        tcpext_TCPFastOpenCookieReqd = netstat_columns_find(tcpext_data, "TCPFastOpenCookieReqd");
        tcpext_TCPSpuriousRtxHostQueues = netstat_columns_find(tcpext_data, "TCPSpuriousRtxHostQueues");
        tcpext_BusyPollRxPackets = netstat_columns_find(tcpext_data, "BusyPollRxPackets");
        tcpext_TCPAutoCorking = netstat_columns_find(tcpext_data, "TCPAutoCorking");
        tcpext_TCPFromZeroWindowAdv = netstat_columns_find(tcpext_data, "TCPFromZeroWindowAdv");
        tcpext_TCPToZeroWindowAdv = netstat_columns_find(tcpext_data, "TCPToZeroWindowAdv");
        tcpext_TCPWantZeroWindowAdv = netstat_columns_find(tcpext_data, "TCPWantZeroWindowAdv");
        tcpext_TCPSynRetrans = netstat_columns_find(tcpext_data, "TCPSynRetrans");
        tcpext_TCPOrigDataSent = netstat_columns_find(tcpext_data, "TCPOrigDataSent");
        tcpext_TCPHystartTrainDetect = netstat_columns_find(tcpext_data, "TCPHystartTrainDetect");
        tcpext_TCPHystartTrainCwnd = netstat_columns_find(tcpext_data, "TCPHystartTrainCwnd");
        tcpext_TCPHystartDelayDetect = netstat_columns_find(tcpext_data, "TCPHystartDelayDetect");
        tcpext_TCPHystartDelayCwnd = netstat_columns_find(tcpext_data, "TCPHystartDelayCwnd");
        tcpext_TCPACKSkippedSynRecv = netstat_columns_find(tcpext_data, "TCPACKSkippedSynRecv");
        tcpext_TCPACKSkippedPAWS = netstat_columns_find(tcpext_data, "TCPACKSkippedPAWS");
        tcpext_TCPACKSkippedSeq = netstat_columns_find(tcpext_data, "TCPACKSkippedSeq");
        tcpext_TCPACKSkippedFinWait2 = netstat_columns_find(tcpext_data, "TCPACKSkippedFinWait2");
        tcpext_TCPACKSkippedTimeWait = netstat_columns_find(tcpext_data, "TCPACKSkippedTimeWait");
        tcpext_TCPACKSkippedChallenge = netstat_columns_find(tcpext_data, "TCPACKSkippedChallenge");
        tcpext_TCPWinProbe = netstat_columns_find(tcpext_data, "TCPWinProbe");
        tcpext_TCPKeepAlive = netstat_columns_find(tcpext_data, "TCPKeepAlive");
        tcpext_TCPMTUPFail = netstat_columns_find(tcpext_data, "TCPMTUPFail");
        tcpext_TCPMTUPSuccess = netstat_columns_find(tcpext_data, "TCPMTUPSuccess");
*/
        ipext_InNoRoutes = netstat_columns_find(ipext_data, "InNoRoutes");
        ipext_InTruncatedPkts = netstat_columns_find(ipext_data, "InTruncatedPkts");
        ipext_InMcastPkts = netstat_columns_find(ipext_data, "InMcastPkts");
        ipext_OutMcastPkts = netstat_columns_find(ipext_data, "OutMcastPkts");
        ipext_InBcastPkts = netstat_columns_find(ipext_data, "InBcastPkts");
        ipext_OutBcastPkts = netstat_columns_find(ipext_data, "OutBcastPkts");
        ipext_InOctets = netstat_columns_find(ipext_data, "InOctets");
        ipext_OutOctets = netstat_columns_find(ipext_data, "OutOctets");
        ipext_InMcastOctets = netstat_columns_find(ipext_data, "InMcastOctets");
        ipext_OutMcastOctets = netstat_columns_find(ipext_data, "OutMcastOctets");
        ipext_InBcastOctets = netstat_columns_find(ipext_data, "InBcastOctets");
        ipext_OutBcastOctets = netstat_columns_find(ipext_data, "OutBcastOctets");
        ipext_InCsumErrors = netstat_columns_find(ipext_data, "InCsumErrors");
        ipext_InNoECTPkts = netstat_columns_find(ipext_data, "InNoECTPkts");
        ipext_InECT1Pkts = netstat_columns_find(ipext_data, "InECT1Pkts");
        ipext_InECT0Pkts = netstat_columns_find(ipext_data, "InECT0Pkts");
        ipext_InCEPkts = netstat_columns_find(ipext_data, "InCEPkts");
    }

    if(unlikely(!ff)) {
        char filename[FILENAME_MAX + 1];
        snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/net/netstat");
        ff = procfile_open(config_get("plugin:proc:/proc/net/netstat", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
        if(unlikely(!ff)) return 1;
    }

    ff = procfile_readall(ff);
    if(unlikely(!ff)) return 0; // we return 0, so that we will retry to open it next time

    uint32_t lines = procfile_lines(ff), l;
    uint32_t words;

    for(l = 0; l < lines ;l++) {
        char *key = procfile_lineword(ff, l, 0);
        uint32_t hash = simple_hash(key);

        if(unlikely(hash == hash_ipext && strcmp(key, "IpExt") == 0)) {
            uint32_t h = l++;

            if(unlikely(strcmp(procfile_lineword(ff, l, 0), "IpExt") != 0)) {
                error("Cannot read IpExt line from /proc/net/netstat.");
                break;
            }
            words = procfile_linewords(ff, l);
            if(unlikely(words < 2)) {
                error("Cannot read /proc/net/netstat IpExt line. Expected 2+ params, read %u.", words);
                continue;
            }

            parse_line_pair(ff, ipext_data, h, l);

            RRDSET *st;

            // --------------------------------------------------------------------

            if(do_bandwidth == CONFIG_ONDEMAND_YES || (do_bandwidth == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InOctets || *ipext_OutOctets))) {
                do_bandwidth = CONFIG_ONDEMAND_YES;
                st = rrdset_find("system.ipv4");
                if(unlikely(!st)) {
                    st = rrdset_create("system", "ipv4", NULL, "network", NULL, "IPv4 Bandwidth", "kilobits/s", 500, update_every, RRDSET_TYPE_AREA);

                    rrddim_add(st, "InOctets", "received", 8, 1024, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "OutOctets", "sent", -8, 1024, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InOctets", *ipext_InOctets);
                rrddim_set(st, "OutOctets", *ipext_OutOctets);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_inerrors == CONFIG_ONDEMAND_YES || (do_inerrors == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InNoRoutes || *ipext_InTruncatedPkts))) {
                do_inerrors = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.inerrors");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "inerrors", NULL, "errors", NULL, "IPv4 Input Errors", "packets/s", 4000, update_every, RRDSET_TYPE_LINE);
                    st->isdetail = 1;

                    rrddim_add(st, "InNoRoutes", "noroutes", 1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "InTruncatedPkts", "truncated", 1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "InCsumErrors", "checksum", 1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InNoRoutes", *ipext_InNoRoutes);
                rrddim_set(st, "InTruncatedPkts", *ipext_InTruncatedPkts);
                rrddim_set(st, "InCsumErrors", *ipext_InCsumErrors);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_mcast == CONFIG_ONDEMAND_YES || (do_mcast == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InMcastOctets || *ipext_OutMcastOctets))) {
                do_mcast = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.mcast");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "mcast", NULL, "multicast", NULL, "IPv4 Multicast Bandwidth", "kilobits/s", 9000, update_every, RRDSET_TYPE_AREA);
                    st->isdetail = 1;

                    rrddim_add(st, "InMcastOctets", "received", 8, 1024, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "OutMcastOctets", "sent", -8, 1024, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InMcastOctets", *ipext_InMcastOctets);
                rrddim_set(st, "OutMcastOctets", *ipext_OutMcastOctets);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_bcast == CONFIG_ONDEMAND_YES || (do_bcast == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InBcastOctets || *ipext_OutBcastOctets))) {
                do_bcast = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.bcast");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "bcast", NULL, "broadcast", NULL, "IPv4 Broadcast Bandwidth", "kilobits/s", 8000, update_every, RRDSET_TYPE_AREA);
                    st->isdetail = 1;

                    rrddim_add(st, "InBcastOctets", "received", 8, 1024, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "OutBcastOctets", "sent", -8, 1024, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InBcastOctets", *ipext_InBcastOctets);
                rrddim_set(st, "OutBcastOctets", *ipext_OutBcastOctets);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_mcast_p == CONFIG_ONDEMAND_YES || (do_mcast_p == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InMcastPkts || *ipext_OutMcastPkts))) {
                do_mcast_p = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.mcastpkts");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "mcastpkts", NULL, "multicast", NULL, "IPv4 Multicast Packets", "packets/s", 8600, update_every, RRDSET_TYPE_LINE);
                    st->isdetail = 1;

                    rrddim_add(st, "InMcastPkts", "received", 1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "OutMcastPkts", "sent", -1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InMcastPkts", *ipext_InMcastPkts);
                rrddim_set(st, "OutMcastPkts", *ipext_OutMcastPkts);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_bcast_p == CONFIG_ONDEMAND_YES || (do_bcast_p == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InBcastPkts || *ipext_OutBcastPkts))) {
                do_bcast_p = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.bcastpkts");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "bcastpkts", NULL, "broadcast", NULL, "IPv4 Broadcast Packets", "packets/s", 8500, update_every, RRDSET_TYPE_LINE);
                    st->isdetail = 1;

                    rrddim_add(st, "InBcastPkts", "received", 1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "OutBcastPkts", "sent", -1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InBcastPkts", *ipext_InBcastPkts);
                rrddim_set(st, "OutBcastPkts", *ipext_OutBcastPkts);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_ecn == CONFIG_ONDEMAND_YES || (do_ecn == CONFIG_ONDEMAND_ONDEMAND && (*ipext_InCEPkts || *ipext_InECT0Pkts || *ipext_InECT1Pkts || *ipext_InNoECTPkts))) {
                do_ecn = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.ecnpkts");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "ecnpkts", NULL, "ecn", NULL, "IPv4 ECN Statistics", "packets/s", 8700, update_every, RRDSET_TYPE_LINE);
                    st->isdetail = 1;

                    rrddim_add(st, "InCEPkts", "CEP", 1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "InNoECTPkts", "NoECTP", -1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "InECT0Pkts", "ECTP0", 1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "InECT1Pkts", "ECTP1", 1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "InCEPkts", *ipext_InCEPkts);
                rrddim_set(st, "InNoECTPkts", *ipext_InNoECTPkts);
                rrddim_set(st, "InECT0Pkts", *ipext_InECT0Pkts);
                rrddim_set(st, "InECT1Pkts", *ipext_InECT1Pkts);
                rrdset_done(st);
            }
        }
        else if(unlikely(hash == hash_tcpext && strcmp(key, "TcpExt") == 0)) {
            uint32_t h = l++;

            if(unlikely(strcmp(procfile_lineword(ff, l, 0), "TcpExt") != 0)) {
                error("Cannot read TcpExt line from /proc/net/netstat.");
                break;
            }
            words = procfile_linewords(ff, l);
            if(unlikely(words < 2)) {
                error("Cannot read /proc/net/netstat TcpExt line. Expected 2+ params, read %u.", words);
                continue;
            }

            parse_line_pair(ff, tcpext_data, h, l);

            RRDSET *st;

            // --------------------------------------------------------------------

            if(do_tcpext_memory == CONFIG_ONDEMAND_YES || (do_tcpext_memory == CONFIG_ONDEMAND_ONDEMAND && (*tcpext_TCPMemoryPressures))) {
                do_tcpext_memory = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.tcpmemorypressures");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "tcpmemorypressures", NULL, "tcp", NULL, "TCP Memory Pressures", "events/s", 3000, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "TCPMemoryPressures",   "pressures",  1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "TCPMemoryPressures", *tcpext_TCPMemoryPressures);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_tcpext_connaborts == CONFIG_ONDEMAND_YES || (do_tcpext_connaborts == CONFIG_ONDEMAND_ONDEMAND && (*tcpext_TCPAbortOnData || *tcpext_TCPAbortOnClose || *tcpext_TCPAbortOnMemory || *tcpext_TCPAbortOnTimeout || *tcpext_TCPAbortOnLinger || *tcpext_TCPAbortFailed))) {
                do_tcpext_connaborts = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.tcpconnaborts");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "tcpconnaborts", NULL, "tcp", NULL, "TCP Connection Aborts", "connections/s", 3010, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "TCPAbortOnData",    "baddata",     1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPAbortOnClose",   "userclosed",  1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPAbortOnMemory",  "nomemory",    1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPAbortOnTimeout", "timeout",     1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPAbortOnLinger",  "linger",      1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPAbortFailed",    "failed",     -1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "TCPAbortOnData",    *tcpext_TCPAbortOnData);
                rrddim_set(st, "TCPAbortOnClose",   *tcpext_TCPAbortOnClose);
                rrddim_set(st, "TCPAbortOnMemory",  *tcpext_TCPAbortOnMemory);
                rrddim_set(st, "TCPAbortOnTimeout", *tcpext_TCPAbortOnTimeout);
                rrddim_set(st, "TCPAbortOnLinger",  *tcpext_TCPAbortOnLinger);
                rrddim_set(st, "TCPAbortFailed",    *tcpext_TCPAbortFailed);
                rrdset_done(st);
            }
            // --------------------------------------------------------------------

            if(do_tcpext_reorder == CONFIG_ONDEMAND_YES || (do_tcpext_reorder == CONFIG_ONDEMAND_ONDEMAND && (*tcpext_TCPRenoReorder || *tcpext_TCPFACKReorder || *tcpext_TCPSACKReorder || *tcpext_TCPTSReorder))) {
                do_tcpext_reorder = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.tcpreorders");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "tcpreorders", NULL, "tcp", NULL, "TCP Reordered Packets by Detection Method", "packets/s", 3020, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "TCPTSReorder",   "timestamp",   1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPSACKReorder", "sack",        1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPFACKReorder", "fack",        1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPRenoReorder", "reno",        1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "TCPTSReorder",   *tcpext_TCPTSReorder);
                rrddim_set(st, "TCPSACKReorder", *tcpext_TCPSACKReorder);
                rrddim_set(st, "TCPFACKReorder", *tcpext_TCPFACKReorder);
                rrddim_set(st, "TCPRenoReorder", *tcpext_TCPRenoReorder);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_tcpext_ofo == CONFIG_ONDEMAND_YES || (do_tcpext_ofo == CONFIG_ONDEMAND_ONDEMAND && (*tcpext_TCPOFOQueue || *tcpext_TCPOFODrop || *tcpext_TCPOFOMerge))) {
                do_tcpext_ofo = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.tcpofo");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "tcpofo", NULL, "tcp", NULL, "TCP Out-Of-Order Queue", "packets/s", 3050, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "TCPOFOQueue", "inqueue",  1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPOFODrop",  "dropped", -1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "TCPOFOMerge", "merged",   1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "OfoPruned",   "pruned",  -1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "TCPOFOQueue",   *tcpext_TCPOFOQueue);
                rrddim_set(st, "TCPOFODrop",    *tcpext_TCPOFODrop);
                rrddim_set(st, "TCPOFOMerge",   *tcpext_TCPOFOMerge);
                rrddim_set(st, "OfoPruned",     *tcpext_OfoPruned);
                rrdset_done(st);
            }

            // --------------------------------------------------------------------

            if(do_tcpext_syscookies == CONFIG_ONDEMAND_YES || (do_tcpext_syscookies == CONFIG_ONDEMAND_ONDEMAND && (*tcpext_SyncookiesSent || *tcpext_SyncookiesRecv || *tcpext_SyncookiesFailed))) {
                do_tcpext_syscookies = CONFIG_ONDEMAND_YES;
                st = rrdset_find("ipv4.tcpsyncookies");
                if(unlikely(!st)) {
                    st = rrdset_create("ipv4", "tcpsyncookies", NULL, "tcp", NULL, "TCP SYN Cookies", "packets/s", 3100, update_every, RRDSET_TYPE_LINE);

                    rrddim_add(st, "SyncookiesRecv",   "received",  1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "SyncookiesSent",   "sent",     -1, 1, RRDDIM_INCREMENTAL);
                    rrddim_add(st, "SyncookiesFailed", "failed",   -1, 1, RRDDIM_INCREMENTAL);
                }
                else rrdset_next(st);

                rrddim_set(st, "SyncookiesRecv",   *tcpext_SyncookiesRecv);
                rrddim_set(st, "SyncookiesSent",   *tcpext_SyncookiesSent);
                rrddim_set(st, "SyncookiesFailed", *tcpext_SyncookiesFailed);
                rrdset_done(st);
            }

        }
    }

    return 0;
}