New upstream version 1.5.0+dfsgupstream/1.5.0+dfsg

1 files changed, 1107 insertions, 0 deletions

diff --git a/src/macos_sysctl.c b/src/macos_sysctl.c
new file mode 100644
index 000000000..955b70757
--- /dev/null
+++ b/src/macos_sysctl.c
@@ -0,0 +1,1107 @@
+#include "common.h"
+#include <sys/sysctl.h>
+// NEEDED BY: do_bandwidth
+#include <net/route.h>
+// NEEDED BY do_tcp...
+#include <sys/socketvar.h>
+#include <netinet/tcp_var.h>
+#include <netinet/tcp_fsm.h>
+// NEEDED BY do_udp..., do_ip...
+#include <netinet/ip_var.h>
+// NEEDED BY do_udp...
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+// NEEDED BY do_icmp...
+#include <netinet/ip.h>
+#include <netinet/ip_icmp.h>
+#include <netinet/icmp_var.h>
+// NEEDED BY do_icmp6...
+#include <netinet/icmp6.h>
+// NEEDED BY do_uptime
+#include <time.h>
+
+// MacOS calculates load averages once every 5 seconds
+#define MIN_LOADAVG_UPDATE_EVERY 5
+
+int do_macos_sysctl(int update_every, usec_t dt) {
+    (void)dt;
+
+    static int do_loadavg = -1, do_swap = -1, do_bandwidth = -1,
+               do_tcp_packets = -1, do_tcp_errors = -1, do_tcp_handshake = -1, do_ecn = -1,
+               do_tcpext_syscookies = -1, do_tcpext_ofo = -1, do_tcpext_connaborts = -1,
+               do_udp_packets = -1, do_udp_errors = -1, do_icmp_packets = -1, do_icmpmsg = -1,
+               do_ip_packets = -1, do_ip_fragsout = -1, do_ip_fragsin = -1, do_ip_errors = -1,
+               do_ip6_packets = -1, do_ip6_fragsout = -1, do_ip6_fragsin = -1, do_ip6_errors = -1,
+               do_icmp6 = -1, do_icmp6_redir = -1, do_icmp6_errors = -1, do_icmp6_echos = -1,
+               do_icmp6_router = -1, do_icmp6_neighbor = -1, do_icmp6_types = -1, do_uptime = -1;
+
+
+    if (unlikely(do_loadavg == -1)) {
+        do_loadavg              = config_get_boolean("plugin:macos:sysctl", "enable load average", 1);
+        do_swap                 = config_get_boolean("plugin:macos:sysctl", "system swap", 1);
+        do_bandwidth            = config_get_boolean("plugin:macos:sysctl", "bandwidth", 1);
+        do_tcp_packets          = config_get_boolean("plugin:macos:sysctl", "ipv4 TCP packets", 1);
+        do_tcp_errors           = config_get_boolean("plugin:macos:sysctl", "ipv4 TCP errors", 1);
+        do_tcp_handshake        = config_get_boolean("plugin:macos:sysctl", "ipv4 TCP handshake issues", 1);
+        do_ecn                  = config_get_boolean_ondemand("plugin:macos:sysctl", "ECN packets", CONFIG_ONDEMAND_ONDEMAND);
+        do_tcpext_syscookies    = config_get_boolean_ondemand("plugin:macos:sysctl", "TCP SYN cookies", CONFIG_ONDEMAND_ONDEMAND);
+        do_tcpext_ofo           = config_get_boolean_ondemand("plugin:macos:sysctl", "TCP out-of-order queue", CONFIG_ONDEMAND_ONDEMAND);
+        do_tcpext_connaborts    = config_get_boolean_ondemand("plugin:macos:sysctl", "TCP connection aborts", CONFIG_ONDEMAND_ONDEMAND);
+        do_udp_packets          = config_get_boolean("plugin:macos:sysctl", "ipv4 UDP packets", 1);
+        do_udp_errors           = config_get_boolean("plugin:macos:sysctl", "ipv4 UDP errors", 1);
+        do_icmp_packets         = config_get_boolean("plugin:macos:sysctl", "ipv4 ICMP packets", 1);
+        do_icmpmsg              = config_get_boolean("plugin:macos:sysctl", "ipv4 ICMP messages", 1);
+        do_ip_packets           = config_get_boolean("plugin:macos:sysctl", "ipv4 packets", 1);
+        do_ip_fragsout          = config_get_boolean("plugin:macos:sysctl", "ipv4 fragments sent", 1);
+        do_ip_fragsin           = config_get_boolean("plugin:macos:sysctl", "ipv4 fragments assembly", 1);
+        do_ip_errors            = config_get_boolean("plugin:macos:sysctl", "ipv4 errors", 1);
+        do_ip6_packets          = config_get_boolean_ondemand("plugin:macos:sysctl", "ipv6 packets", CONFIG_ONDEMAND_ONDEMAND);
+        do_ip6_fragsout         = config_get_boolean_ondemand("plugin:macos:sysctl", "ipv6 fragments sent", CONFIG_ONDEMAND_ONDEMAND);
+        do_ip6_fragsin          = config_get_boolean_ondemand("plugin:macos:sysctl", "ipv6 fragments assembly", CONFIG_ONDEMAND_ONDEMAND);
+        do_ip6_errors           = config_get_boolean_ondemand("plugin:macos:sysctl", "ipv6 errors", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6                = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6_redir          = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp redirects", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6_errors         = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp errors", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6_echos          = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp echos", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6_router         = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp router", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6_neighbor       = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp neighbor", CONFIG_ONDEMAND_ONDEMAND);
+        do_icmp6_types          = config_get_boolean_ondemand("plugin:macos:sysctl", "icmp types", CONFIG_ONDEMAND_ONDEMAND);
+        do_uptime               = config_get_boolean("plugin:macos:sysctl", "system uptime", 1);
+    }
+
+    RRDSET *st;
+
+    int system_pagesize = getpagesize(); // wouldn't it be better to get value directly from hw.pagesize?
+    int i, n;
+    int common_error = 0;
+    size_t size;
+
+    // NEEDED BY: do_loadavg
+    static usec_t last_loadavg_usec = 0;
+    struct loadavg sysload;
+
+    // NEEDED BY: do_swap
+    struct xsw_usage swap_usage;
+
+    // NEEDED BY: do_bandwidth
+    int mib[6];
+    static char *ifstatdata = NULL;
+    char *lim, *next;
+    struct if_msghdr *ifm;
+    struct iftot {
+        u_long  ift_ibytes;
+        u_long  ift_obytes;
+    } iftot = {0, 0};
+
+    // NEEDED BY: do_tcp...
+    struct tcpstat tcpstat;
+    uint64_t tcps_states[TCP_NSTATES];
+
+    // NEEDED BY: do_udp...
+    struct udpstat udpstat;
+
+    // NEEDED BY: do_icmp...
+    struct icmpstat icmpstat;
+    struct icmp_total {
+        u_long  msgs_in;
+        u_long  msgs_out;
+    } icmp_total = {0, 0};
+
+    // NEEDED BY: do_ip...
+    struct ipstat ipstat;
+
+    // NEEDED BY: do_ip6...
+    /*
+     * Dirty workaround for /usr/include/netinet6/ip6_var.h absence.
+     * Struct ip6stat was copied from bsd/netinet6/ip6_var.h from xnu sources.
+     */
+#define	IP6S_SRCRULE_COUNT 16
+#include <netinet6/scope6_var.h>
+    struct	ip6stat {
+        u_quad_t ip6s_total;		/* total packets received */
+        u_quad_t ip6s_tooshort;		/* packet too short */
+        u_quad_t ip6s_toosmall;		/* not enough data */
+        u_quad_t ip6s_fragments;	/* fragments received */
+        u_quad_t ip6s_fragdropped;	/* frags dropped(dups, out of space) */
+        u_quad_t ip6s_fragtimeout;	/* fragments timed out */
+        u_quad_t ip6s_fragoverflow;	/* fragments that exceeded limit */
+        u_quad_t ip6s_forward;		/* packets forwarded */
+        u_quad_t ip6s_cantforward;	/* packets rcvd for unreachable dest */
+        u_quad_t ip6s_redirectsent;	/* packets forwarded on same net */
+        u_quad_t ip6s_delivered;	/* datagrams delivered to upper level */
+        u_quad_t ip6s_localout;		/* total ip packets generated here */
+        u_quad_t ip6s_odropped;		/* lost packets due to nobufs, etc. */
+        u_quad_t ip6s_reassembled;	/* total packets reassembled ok */
+        u_quad_t ip6s_atmfrag_rcvd;	/* atomic fragments received */
+        u_quad_t ip6s_fragmented;	/* datagrams successfully fragmented */
+        u_quad_t ip6s_ofragments;	/* output fragments created */
+        u_quad_t ip6s_cantfrag;		/* don't fragment flag was set, etc. */
+        u_quad_t ip6s_badoptions;	/* error in option processing */
+        u_quad_t ip6s_noroute;		/* packets discarded due to no route */
+        u_quad_t ip6s_badvers;		/* ip6 version != 6 */
+        u_quad_t ip6s_rawout;		/* total raw ip packets generated */
+        u_quad_t ip6s_badscope;		/* scope error */
+        u_quad_t ip6s_notmember;	/* don't join this multicast group */
+        u_quad_t ip6s_nxthist[256];	/* next header history */
+        u_quad_t ip6s_m1;		/* one mbuf */
+        u_quad_t ip6s_m2m[32];		/* two or more mbuf */
+        u_quad_t ip6s_mext1;		/* one ext mbuf */
+        u_quad_t ip6s_mext2m;		/* two or more ext mbuf */
+        u_quad_t ip6s_exthdrtoolong;	/* ext hdr are not continuous */
+        u_quad_t ip6s_nogif;		/* no match gif found */
+        u_quad_t ip6s_toomanyhdr;	/* discarded due to too many headers */
+
+        /*
+         * statistics for improvement of the source address selection
+         * algorithm:
+         */
+        /* number of times that address selection fails */
+        u_quad_t ip6s_sources_none;
+        /* number of times that an address on the outgoing I/F is chosen */
+        u_quad_t ip6s_sources_sameif[SCOPE6_ID_MAX];
+        /* number of times that an address on a non-outgoing I/F is chosen */
+        u_quad_t ip6s_sources_otherif[SCOPE6_ID_MAX];
+        /*
+         * number of times that an address that has the same scope
+         * from the destination is chosen.
+         */
+        u_quad_t ip6s_sources_samescope[SCOPE6_ID_MAX];
+        /*
+         * number of times that an address that has a different scope
+         * from the destination is chosen.
+         */
+        u_quad_t ip6s_sources_otherscope[SCOPE6_ID_MAX];
+        /* number of times that a deprecated address is chosen */
+        u_quad_t ip6s_sources_deprecated[SCOPE6_ID_MAX];
+
+        u_quad_t ip6s_forward_cachehit;
+        u_quad_t ip6s_forward_cachemiss;
+
+        /* number of times that each rule of source selection is applied. */
+        u_quad_t ip6s_sources_rule[IP6S_SRCRULE_COUNT];
+
+        /* number of times we ignored address on expensive secondary interfaces */
+        u_quad_t ip6s_sources_skip_expensive_secondary_if;
+
+        /* pkt dropped, no mbufs for control data */
+        u_quad_t ip6s_pktdropcntrl;
+
+        /* total packets trimmed/adjusted  */
+        u_quad_t ip6s_adj;
+        /* hwcksum info discarded during adjustment */
+        u_quad_t ip6s_adj_hwcsum_clr;
+
+        /* duplicate address detection collisions */
+        u_quad_t ip6s_dad_collide;
+
+        /* DAD NS looped back */
+        u_quad_t ip6s_dad_loopcount;
+    } ip6stat;
+
+    // NEEDED BY: do_icmp6...
+    struct icmp6stat icmp6stat;
+    struct icmp6_total {
+        u_long  msgs_in;
+        u_long  msgs_out;
+    } icmp6_total = {0, 0};
+
+    // NEEDED BY: do_uptime
+    struct timespec boot_time, cur_time;
+
+    // --------------------------------------------------------------------
+
+    if (last_loadavg_usec <= dt) {
+        if (likely(do_loadavg)) {
+            if (unlikely(GETSYSCTL("vm.loadavg", sysload))) {
+                do_loadavg = 0;
+                error("DISABLED: system.load");
+            } else {
+
+                st = rrdset_find_bytype("system", "load");
+                if (unlikely(!st)) {
+                    st = rrdset_create("system", "load", NULL, "load", NULL, "System Load Average", "load", 100, (update_every < MIN_LOADAVG_UPDATE_EVERY) ? MIN_LOADAVG_UPDATE_EVERY : update_every, RRDSET_TYPE_LINE);
+                    rrddim_add(st, "load1", NULL, 1, 1000, RRDDIM_ABSOLUTE);
+                    rrddim_add(st, "load5", NULL, 1, 1000, RRDDIM_ABSOLUTE);
+                    rrddim_add(st, "load15", NULL, 1, 1000, RRDDIM_ABSOLUTE);
+                }
+                else rrdset_next(st);
+
+                rrddim_set(st, "load1", (collected_number) ((double)sysload.ldavg[0] / sysload.fscale * 1000));
+                rrddim_set(st, "load5", (collected_number) ((double)sysload.ldavg[1] / sysload.fscale * 1000));
+                rrddim_set(st, "load15", (collected_number) ((double)sysload.ldavg[2] / sysload.fscale * 1000));
+                rrdset_done(st);
+            }
+        }
+
+        last_loadavg_usec = st->update_every * USEC_PER_SEC;
+    }
+    else last_loadavg_usec -= dt;
+
+    // --------------------------------------------------------------------
+
+    if (likely(do_swap)) {
+        if (unlikely(GETSYSCTL("vm.swapusage", swap_usage))) {
+            do_swap = 0;
+            error("DISABLED: system.swap");
+        } else {
+            st = rrdset_find("system.swap");
+            if (unlikely(!st)) {
+                st = rrdset_create("system", "swap", NULL, "swap", NULL, "System Swap", "MB", 201, update_every, RRDSET_TYPE_STACKED);
+                st->isdetail = 1;
+
+                rrddim_add(st, "free",    NULL, 1, 1048576, RRDDIM_ABSOLUTE);
+                rrddim_add(st, "used",    NULL, 1, 1048576, RRDDIM_ABSOLUTE);
+            }
+            else rrdset_next(st);
+
+            rrddim_set(st, "free", swap_usage.xsu_avail);
+            rrddim_set(st, "used", swap_usage.xsu_used);
+            rrdset_done(st);
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    if (likely(do_bandwidth)) {
+        mib[0] = CTL_NET;
+        mib[1] = PF_ROUTE;
+        mib[2] = 0;
+        mib[3] = AF_INET;
+        mib[4] = NET_RT_IFLIST2;
+        mib[5] = 0;
+        if (unlikely(sysctl(mib, 6, NULL, &size, NULL, 0))) {
+            error("MACOS: sysctl(%s...) failed: %s", "net interfaces", strerror(errno));
+            do_bandwidth = 0;
+            error("DISABLED: system.ipv4");
+        } else {
+            ifstatdata = reallocz(ifstatdata, size);
+            if (unlikely(sysctl(mib, 6, ifstatdata, &size, NULL, 0) < 0)) {
+                error("MACOS: sysctl(%s...) failed: %s", "net interfaces", strerror(errno));
+                do_bandwidth = 0;
+                error("DISABLED: system.ipv4");
+            } else {
+                lim = ifstatdata + size;
+                iftot.ift_ibytes = iftot.ift_obytes = 0;
+                for (next = ifstatdata; next < lim; ) {
+                    ifm = (struct if_msghdr *)next;
+                    next += ifm->ifm_msglen;
+
+                    if (ifm->ifm_type == RTM_IFINFO2) {
+                        struct if_msghdr2 *if2m = (struct if_msghdr2 *)ifm;
+
+                        iftot.ift_ibytes += if2m->ifm_data.ifi_ibytes;
+                        iftot.ift_obytes += if2m->ifm_data.ifi_obytes;
+                    }
+                }
+                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", iftot.ift_ibytes);
+                rrddim_set(st, "OutOctets", iftot.ift_obytes);
+                rrdset_done(st);
+            }
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    // see http://net-snmp.sourceforge.net/docs/mibs/tcp.html
+    if (likely(do_tcp_packets || do_tcp_errors || do_tcp_handshake || do_tcpext_connaborts || do_tcpext_ofo || do_tcpext_syscookies || do_ecn)) {
+        if (unlikely(GETSYSCTL("net.inet.tcp.stats", tcpstat))){
+            do_tcp_packets = 0;
+            error("DISABLED: ipv4.tcppackets");
+            do_tcp_errors = 0;
+            error("DISABLED: ipv4.tcperrors");
+            do_tcp_handshake = 0;
+            error("DISABLED: ipv4.tcphandshake");
+            do_tcpext_connaborts = 0;
+            error("DISABLED: ipv4.tcpconnaborts");
+            do_tcpext_ofo = 0;
+            error("DISABLED: ipv4.tcpofo");
+            do_tcpext_syscookies = 0;
+            error("DISABLED: ipv4.tcpsyncookies");
+            do_ecn = 0;
+            error("DISABLED: ipv4.ecnpkts");
+        } else {
+            if (likely(do_tcp_packets)) {
+                st = rrdset_find("ipv4.tcppackets");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "tcppackets", NULL, "tcp", NULL, "IPv4 TCP Packets",
+                                       "packets/s",
+                                       2600, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InSegs", "received", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutSegs", "sent", -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InSegs", tcpstat.tcps_rcvtotal);
+                rrddim_set(st, "OutSegs", tcpstat.tcps_sndtotal);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_tcp_errors)) {
+                st = rrdset_find("ipv4.tcperrors");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "tcperrors", NULL, "tcp", NULL, "IPv4 TCP Errors",
+                                       "packets/s",
+                                       2700, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "InErrs", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InCsumErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "RetransSegs", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InErrs", tcpstat.tcps_rcvbadoff + tcpstat.tcps_rcvshort);
+                rrddim_set(st, "InCsumErrors", tcpstat.tcps_rcvbadsum);
+                rrddim_set(st, "RetransSegs", tcpstat.tcps_sndrexmitpack);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_tcp_handshake)) {
+                st = rrdset_find("ipv4.tcphandshake");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "tcphandshake", NULL, "tcp", NULL,
+                                       "IPv4 TCP Handshake Issues",
+                                       "events/s", 2900, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "EstabResets", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "ActiveOpens", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "PassiveOpens", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "AttemptFails", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "EstabResets", tcpstat.tcps_drops);
+                rrddim_set(st, "ActiveOpens", tcpstat.tcps_connattempt);
+                rrddim_set(st, "PassiveOpens", tcpstat.tcps_accepts);
+                rrddim_set(st, "AttemptFails", tcpstat.tcps_conndrops);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_tcpext_connaborts == CONFIG_ONDEMAND_YES || (do_tcpext_connaborts == CONFIG_ONDEMAND_ONDEMAND && (tcpstat.tcps_rcvpackafterwin || tcpstat.tcps_rcvafterclose || tcpstat.tcps_rcvmemdrop || tcpstat.tcps_persistdrop))) {
+                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);
+                }
+                else rrdset_next(st);
+
+                rrddim_set(st, "TCPAbortOnData",    tcpstat.tcps_rcvpackafterwin);
+                rrddim_set(st, "TCPAbortOnClose",   tcpstat.tcps_rcvafterclose);
+                rrddim_set(st, "TCPAbortOnMemory",  tcpstat.tcps_rcvmemdrop);
+                rrddim_set(st, "TCPAbortOnTimeout", tcpstat.tcps_persistdrop);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_tcpext_ofo == CONFIG_ONDEMAND_YES || (do_tcpext_ofo == CONFIG_ONDEMAND_ONDEMAND && tcpstat.tcps_rcvoopack)) {
+                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);
+                }
+                else rrdset_next(st);
+
+                rrddim_set(st, "TCPOFOQueue",   tcpstat.tcps_rcvoopack);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_tcpext_syscookies == CONFIG_ONDEMAND_YES || (do_tcpext_syscookies == CONFIG_ONDEMAND_ONDEMAND && (tcpstat.tcps_sc_sendcookie || tcpstat.tcps_sc_recvcookie || tcpstat.tcps_sc_zonefail))) {
+                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",   tcpstat.tcps_sc_recvcookie);
+                rrddim_set(st, "SyncookiesSent",   tcpstat.tcps_sc_sendcookie);
+                rrddim_set(st, "SyncookiesFailed", tcpstat.tcps_sc_zonefail);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_ecn == CONFIG_ONDEMAND_YES || (do_ecn == CONFIG_ONDEMAND_ONDEMAND && (tcpstat.tcps_ecn_recv_ce || tcpstat.tcps_ecn_not_supported))) {
+                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);
+                }
+                else rrdset_next(st);
+
+                rrddim_set(st, "InCEPkts", tcpstat.tcps_ecn_recv_ce);
+                rrddim_set(st, "InNoECTPkts", tcpstat.tcps_ecn_not_supported);
+                rrdset_done(st);
+            }
+
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    // see http://net-snmp.sourceforge.net/docs/mibs/udp.html
+    if (likely(do_udp_packets || do_udp_errors)) {
+        if (unlikely(GETSYSCTL("net.inet.udp.stats", udpstat))) {
+            do_udp_packets = 0;
+            error("DISABLED: ipv4.udppackets");
+            do_udp_errors = 0;
+            error("DISABLED: ipv4.udperrors");
+        } else {
+            if (likely(do_udp_packets)) {
+                st = rrdset_find("ipv4.udppackets");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "udppackets", NULL, "udp", NULL, "IPv4 UDP Packets",
+                                       "packets/s", 2601, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InDatagrams", "received", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutDatagrams", "sent", -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InDatagrams", udpstat.udps_ipackets);
+                rrddim_set(st, "OutDatagrams", udpstat.udps_opackets);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_udp_errors)) {
+                st = rrdset_find("ipv4.udperrors");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "udperrors", NULL, "udp", NULL, "IPv4 UDP Errors", "events/s",
+                                       2701, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "RcvbufErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "NoPorts", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InCsumErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "IgnoredMulti", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InErrors", udpstat.udps_hdrops + udpstat.udps_badlen);
+                rrddim_set(st, "NoPorts", udpstat.udps_noport);
+                rrddim_set(st, "RcvbufErrors", udpstat.udps_fullsock);
+                rrddim_set(st, "InCsumErrors", udpstat.udps_badsum + udpstat.udps_nosum);
+                rrddim_set(st, "IgnoredMulti", udpstat.udps_filtermcast);
+                rrdset_done(st);
+            }
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    if (likely(do_icmp_packets || do_icmpmsg)) {
+        if (unlikely(GETSYSCTL("net.inet.icmp.stats", icmpstat))) {
+            do_icmp_packets = 0;
+            error("DISABLED: ipv4.icmp");
+            error("DISABLED: ipv4.icmp_errors");
+            do_icmpmsg = 0;
+            error("DISABLED: ipv4.icmpmsg");
+        } else {
+            for (i = 0; i <= ICMP_MAXTYPE; i++) {
+                icmp_total.msgs_in += icmpstat.icps_inhist[i];
+                icmp_total.msgs_out += icmpstat.icps_outhist[i];
+            }
+            icmp_total.msgs_in += icmpstat.icps_badcode + icmpstat.icps_badlen + icmpstat.icps_checksum + icmpstat.icps_tooshort;
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_icmp_packets)) {
+                st = rrdset_find("ipv4.icmp");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "icmp", NULL, "icmp", NULL, "IPv4 ICMP Packets", "packets/s",
+                                       2602,
+                                       update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InMsgs", "received", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutMsgs", "sent", -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InMsgs", icmp_total.msgs_in);
+                rrddim_set(st, "OutMsgs", icmp_total.msgs_out);
+
+                rrdset_done(st);
+
+                // --------------------------------------------------------------------
+
+                st = rrdset_find("ipv4.icmp_errors");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "icmp_errors", NULL, "icmp", NULL, "IPv4 ICMP Errors",
+                                       "packets/s",
+                                       2603, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutErrors", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InCsumErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InErrors", icmpstat.icps_badcode + icmpstat.icps_badlen + icmpstat.icps_checksum + icmpstat.icps_tooshort);
+                rrddim_set(st, "OutErrors", icmpstat.icps_error);
+                rrddim_set(st, "InCsumErrors", icmpstat.icps_checksum);
+
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_icmpmsg)) {
+                st = rrdset_find("ipv4.icmpmsg");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "icmpmsg", NULL, "icmp", NULL, "IPv4 ICMP Messsages",
+                                       "packets/s", 2604, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InEchoReps", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutEchoReps", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InEchos", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutEchos", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                    rrddim_set(st, "InEchoReps", icmpstat.icps_inhist[ICMP_ECHOREPLY]);
+                    rrddim_set(st, "OutEchoReps", icmpstat.icps_outhist[ICMP_ECHOREPLY]);
+                    rrddim_set(st, "InEchos", icmpstat.icps_inhist[ICMP_ECHO]);
+                    rrddim_set(st, "OutEchos", icmpstat.icps_outhist[ICMP_ECHO]);
+
+                rrdset_done(st);
+            }
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    // see also http://net-snmp.sourceforge.net/docs/mibs/ip.html
+    if (likely(do_ip_packets || do_ip_fragsout || do_ip_fragsin || do_ip_errors)) {
+        if (unlikely(GETSYSCTL("net.inet.ip.stats", ipstat))) {
+            do_ip_packets = 0;
+            error("DISABLED: ipv4.packets");
+            do_ip_fragsout = 0;
+            error("DISABLED: ipv4.fragsout");
+            do_ip_fragsin = 0;
+            error("DISABLED: ipv4.fragsin");
+            do_ip_errors = 0;
+            error("DISABLED: ipv4.errors");
+        } else {
+            if (likely(do_ip_packets)) {
+                st = rrdset_find("ipv4.packets");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "packets", NULL, "packets", NULL, "IPv4 Packets", "packets/s",
+                                       3000, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InReceives", "received", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutRequests", "sent", -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "ForwDatagrams", "forwarded", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InDelivers", "delivered", 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "OutRequests", ipstat.ips_localout);
+                rrddim_set(st, "InReceives", ipstat.ips_total);
+                rrddim_set(st, "ForwDatagrams", ipstat.ips_forward);
+                rrddim_set(st, "InDelivers", ipstat.ips_delivered);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_ip_fragsout)) {
+                st = rrdset_find("ipv4.fragsout");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "fragsout", NULL, "fragments", NULL, "IPv4 Fragments Sent",
+                                       "packets/s", 3010, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "FragOKs", "ok", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "FragFails", "failed", -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "FragCreates", "created", 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "FragOKs", ipstat.ips_fragmented);
+                rrddim_set(st, "FragFails", ipstat.ips_cantfrag);
+                rrddim_set(st, "FragCreates", ipstat.ips_ofragments);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_ip_fragsin)) {
+                st = rrdset_find("ipv4.fragsin");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "fragsin", NULL, "fragments", NULL,
+                                       "IPv4 Fragments Reassembly",
+                                       "packets/s", 3011, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "ReasmOKs", "ok", 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "ReasmFails", "failed", -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "ReasmReqds", "all", 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "ReasmOKs", ipstat.ips_fragments);
+                rrddim_set(st, "ReasmFails", ipstat.ips_fragdropped);
+                rrddim_set(st, "ReasmReqds", ipstat.ips_reassembled);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (likely(do_ip_errors)) {
+                st = rrdset_find("ipv4.errors");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv4", "errors", NULL, "errors", NULL, "IPv4 Errors", "packets/s",
+                                       3002,
+                                       update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "InDiscards", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutDiscards", NULL, -1, 1, RRDDIM_INCREMENTAL);
+
+                    rrddim_add(st, "InHdrErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutNoRoutes", NULL, -1, 1, RRDDIM_INCREMENTAL);
+
+                    rrddim_add(st, "InAddrErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InUnknownProtos", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InDiscards", ipstat.ips_badsum + ipstat.ips_tooshort + ipstat.ips_toosmall + ipstat.ips_toolong);
+                rrddim_set(st, "OutDiscards", ipstat.ips_odropped);
+                rrddim_set(st, "InHdrErrors", ipstat.ips_badhlen + ipstat.ips_badlen + ipstat.ips_badoptions + ipstat.ips_badvers);
+                rrddim_set(st, "InAddrErrors", ipstat.ips_badaddr);
+                rrddim_set(st, "InUnknownProtos", ipstat.ips_noproto);
+                rrddim_set(st, "OutNoRoutes", ipstat.ips_noroute);
+                rrdset_done(st);
+            }
+        }
+    }
+ 
+    // --------------------------------------------------------------------
+
+    if (likely(do_ip6_packets || do_ip6_fragsout || do_ip6_fragsin || do_ip6_errors)) {
+        if (unlikely(GETSYSCTL("net.inet6.ip6.stats", ip6stat))) {
+            do_ip6_packets = 0;
+            error("DISABLED: ipv6.packets");
+            do_ip6_fragsout = 0;
+            error("DISABLED: ipv6.fragsout");
+            do_ip6_fragsin = 0;
+            error("DISABLED: ipv6.fragsin");
+            do_ip6_errors = 0;
+            error("DISABLED: ipv6.errors");
+        } else {
+            if (do_ip6_packets == CONFIG_ONDEMAND_YES || (do_ip6_packets == CONFIG_ONDEMAND_ONDEMAND &&
+                                                          (ip6stat.ip6s_localout || ip6stat.ip6s_total ||
+                                                           ip6stat.ip6s_forward || ip6stat.ip6s_delivered))) {
+                do_ip6_packets = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.packets");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "packets", NULL, "packets", NULL, "IPv6 Packets", "packets/s", 3000,
+                                       update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "forwarded", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "delivers", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "sent", ip6stat.ip6s_localout);
+                rrddim_set(st, "received", ip6stat.ip6s_total);
+                rrddim_set(st, "forwarded", ip6stat.ip6s_forward);
+                rrddim_set(st, "delivers", ip6stat.ip6s_delivered);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_ip6_fragsout == CONFIG_ONDEMAND_YES || (do_ip6_fragsout == CONFIG_ONDEMAND_ONDEMAND &&
+                                                           (ip6stat.ip6s_fragmented || ip6stat.ip6s_cantfrag ||
+                                                            ip6stat.ip6s_ofragments))) {
+                do_ip6_fragsout = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.fragsout");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "fragsout", NULL, "fragments", NULL, "IPv6 Fragments Sent",
+                                       "packets/s", 3010, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "ok", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "failed", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "all", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "ok", ip6stat.ip6s_fragmented);
+                rrddim_set(st, "failed", ip6stat.ip6s_cantfrag);
+                rrddim_set(st, "all", ip6stat.ip6s_ofragments);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_ip6_fragsin == CONFIG_ONDEMAND_YES || (do_ip6_fragsin == CONFIG_ONDEMAND_ONDEMAND &&
+                                                          (ip6stat.ip6s_reassembled || ip6stat.ip6s_fragdropped ||
+                                                           ip6stat.ip6s_fragtimeout || ip6stat.ip6s_fragments))) {
+                do_ip6_fragsin = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.fragsin");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "fragsin", NULL, "fragments", NULL, "IPv6 Fragments Reassembly",
+                                       "packets/s", 3011, update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "ok", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "failed", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "timeout", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "all", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "ok", ip6stat.ip6s_reassembled);
+                rrddim_set(st, "failed", ip6stat.ip6s_fragdropped);
+                rrddim_set(st, "timeout", ip6stat.ip6s_fragtimeout);
+                rrddim_set(st, "all", ip6stat.ip6s_fragments);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_ip6_errors == CONFIG_ONDEMAND_YES || (do_ip6_errors == CONFIG_ONDEMAND_ONDEMAND && (
+                    ip6stat.ip6s_toosmall ||
+                    ip6stat.ip6s_odropped ||
+                    ip6stat.ip6s_badoptions ||
+                    ip6stat.ip6s_badvers ||
+                    ip6stat.ip6s_exthdrtoolong ||
+                    ip6stat.ip6s_sources_none ||
+                    ip6stat.ip6s_tooshort ||
+                    ip6stat.ip6s_cantforward ||
+                    ip6stat.ip6s_noroute))) {
+                do_ip6_errors = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.errors");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "errors", NULL, "errors", NULL, "IPv6 Errors", "packets/s", 3002,
+                                       update_every, RRDSET_TYPE_LINE);
+                    st->isdetail = 1;
+
+                    rrddim_add(st, "InDiscards", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutDiscards", NULL, -1, 1, RRDDIM_INCREMENTAL);
+
+                    rrddim_add(st, "InHdrErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InAddrErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InTruncatedPkts", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InNoRoutes", NULL, 1, 1, RRDDIM_INCREMENTAL);
+
+                    rrddim_add(st, "OutNoRoutes", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InDiscards", ip6stat.ip6s_toosmall);
+                rrddim_set(st, "OutDiscards", ip6stat.ip6s_odropped);
+
+                rrddim_set(st, "InHdrErrors",
+                           ip6stat.ip6s_badoptions + ip6stat.ip6s_badvers + ip6stat.ip6s_exthdrtoolong);
+                rrddim_set(st, "InAddrErrors", ip6stat.ip6s_sources_none);
+                rrddim_set(st, "InTruncatedPkts", ip6stat.ip6s_tooshort);
+                rrddim_set(st, "InNoRoutes", ip6stat.ip6s_cantforward);
+
+                rrddim_set(st, "OutNoRoutes", ip6stat.ip6s_noroute);
+                rrdset_done(st);
+            }
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    if (likely(do_icmp6 || do_icmp6_redir || do_icmp6_errors || do_icmp6_echos || do_icmp6_router || do_icmp6_neighbor || do_icmp6_types)) {
+        if (unlikely(GETSYSCTL("net.inet6.icmp6.stats", icmp6stat))) {
+            do_icmp6 = 0;
+            error("DISABLED: ipv6.icmp");
+        } else {
+            for (i = 0; i <= ICMP6_MAXTYPE; i++) {
+                icmp6_total.msgs_in += icmp6stat.icp6s_inhist[i];
+                icmp6_total.msgs_out += icmp6stat.icp6s_outhist[i];
+            }
+            icmp6_total.msgs_in += icmp6stat.icp6s_badcode + icmp6stat.icp6s_badlen + icmp6stat.icp6s_checksum + icmp6stat.icp6s_tooshort;
+            if (do_icmp6 == CONFIG_ONDEMAND_YES || (do_icmp6 == CONFIG_ONDEMAND_ONDEMAND && (icmp6_total.msgs_in || icmp6_total.msgs_out))) {
+                do_icmp6 = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmp");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmp", NULL, "icmp", NULL, "IPv6 ICMP Messages",
+                                       "messages/s", 10000, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "sent", icmp6_total.msgs_in);
+                rrddim_set(st, "received", icmp6_total.msgs_out);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_icmp6_redir == CONFIG_ONDEMAND_YES || (do_icmp6_redir == CONFIG_ONDEMAND_ONDEMAND && (icmp6stat.icp6s_inhist[ND_REDIRECT] || icmp6stat.icp6s_outhist[ND_REDIRECT]))) {
+                do_icmp6_redir = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmpredir");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmpredir", NULL, "icmp", NULL, "IPv6 ICMP Redirects",
+                                       "redirects/s", 10050, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "sent", icmp6stat.icp6s_inhist[ND_REDIRECT]);
+                rrddim_set(st, "received", icmp6stat.icp6s_outhist[ND_REDIRECT]);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_icmp6_errors == CONFIG_ONDEMAND_YES || (do_icmp6_errors == CONFIG_ONDEMAND_ONDEMAND && (
+                                                                            icmp6stat.icp6s_badcode ||
+                                                                            icmp6stat.icp6s_badlen ||
+                                                                            icmp6stat.icp6s_checksum ||
+                                                                            icmp6stat.icp6s_tooshort ||
+                                                                            icmp6stat.icp6s_error ||
+                                                                            icmp6stat.icp6s_inhist[ICMP6_DST_UNREACH] ||
+                                                                            icmp6stat.icp6s_inhist[ICMP6_TIME_EXCEEDED] ||
+                                                                            icmp6stat.icp6s_inhist[ICMP6_PARAM_PROB] ||
+                                                                            icmp6stat.icp6s_outhist[ICMP6_DST_UNREACH] ||
+                                                                            icmp6stat.icp6s_outhist[ICMP6_TIME_EXCEEDED] ||
+                                                                            icmp6stat.icp6s_outhist[ICMP6_PARAM_PROB]))) {
+                do_icmp6_errors = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmperrors");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmperrors", NULL, "icmp", NULL, "IPv6 ICMP Errors", "errors/s", 10100, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutErrors", NULL, -1, 1, RRDDIM_INCREMENTAL);
+
+                    rrddim_add(st, "InCsumErrors", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InDestUnreachs", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InPktTooBigs", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InTimeExcds", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InParmProblems", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutDestUnreachs", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutTimeExcds", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutParmProblems", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InErrors", icmp6stat.icp6s_badcode + icmp6stat.icp6s_badlen + icmp6stat.icp6s_checksum + icmp6stat.icp6s_tooshort);
+                rrddim_set(st, "OutErrors", icmp6stat.icp6s_error);
+                rrddim_set(st, "InCsumErrors", icmp6stat.icp6s_checksum);
+                rrddim_set(st, "InDestUnreachs", icmp6stat.icp6s_inhist[ICMP6_DST_UNREACH]);
+                rrddim_set(st, "InPktTooBigs", icmp6stat.icp6s_badlen);
+                rrddim_set(st, "InTimeExcds", icmp6stat.icp6s_inhist[ICMP6_TIME_EXCEEDED]);
+                rrddim_set(st, "InParmProblems", icmp6stat.icp6s_inhist[ICMP6_PARAM_PROB]);
+                rrddim_set(st, "OutDestUnreachs", icmp6stat.icp6s_outhist[ICMP6_DST_UNREACH]);
+                rrddim_set(st, "OutTimeExcds", icmp6stat.icp6s_outhist[ICMP6_TIME_EXCEEDED]);
+                rrddim_set(st, "OutParmProblems", icmp6stat.icp6s_outhist[ICMP6_PARAM_PROB]);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_icmp6_echos == CONFIG_ONDEMAND_YES || (do_icmp6_echos == CONFIG_ONDEMAND_ONDEMAND && (
+                                                                 icmp6stat.icp6s_inhist[ICMP6_ECHO_REQUEST] ||
+                                                                 icmp6stat.icp6s_outhist[ICMP6_ECHO_REQUEST] ||
+                                                                 icmp6stat.icp6s_inhist[ICMP6_ECHO_REPLY] ||
+                                                                 icmp6stat.icp6s_outhist[ICMP6_ECHO_REPLY]))) {
+                do_icmp6_echos = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmpechos");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmpechos", NULL, "icmp", NULL, "IPv6 ICMP Echo", "messages/s", 10200, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InEchos", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutEchos", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InEchoReplies", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutEchoReplies", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InEchos", icmp6stat.icp6s_inhist[ICMP6_ECHO_REQUEST]);
+                rrddim_set(st, "OutEchos", icmp6stat.icp6s_outhist[ICMP6_ECHO_REQUEST]);
+                rrddim_set(st, "InEchoReplies", icmp6stat.icp6s_inhist[ICMP6_ECHO_REPLY]);
+                rrddim_set(st, "OutEchoReplies", icmp6stat.icp6s_outhist[ICMP6_ECHO_REPLY]);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_icmp6_router == CONFIG_ONDEMAND_YES || (do_icmp6_router == CONFIG_ONDEMAND_ONDEMAND && (
+                                                                    icmp6stat.icp6s_inhist[ND_ROUTER_SOLICIT] ||
+                                                                    icmp6stat.icp6s_outhist[ND_ROUTER_SOLICIT] ||
+                                                                    icmp6stat.icp6s_inhist[ND_ROUTER_ADVERT] ||
+                                                                    icmp6stat.icp6s_outhist[ND_ROUTER_ADVERT]))) {
+                do_icmp6_router = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmprouter");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmprouter", NULL, "icmp", NULL, "IPv6 Router Messages", "messages/s", 10400, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InSolicits", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutSolicits", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InAdvertisements", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutAdvertisements", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InSolicits", icmp6stat.icp6s_inhist[ND_ROUTER_SOLICIT]);
+                rrddim_set(st, "OutSolicits", icmp6stat.icp6s_outhist[ND_ROUTER_SOLICIT]);
+                rrddim_set(st, "InAdvertisements", icmp6stat.icp6s_inhist[ND_ROUTER_ADVERT]);
+                rrddim_set(st, "OutAdvertisements", icmp6stat.icp6s_outhist[ND_ROUTER_ADVERT]);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_icmp6_neighbor == CONFIG_ONDEMAND_YES || (do_icmp6_neighbor == CONFIG_ONDEMAND_ONDEMAND && (
+                                                                    icmp6stat.icp6s_inhist[ND_NEIGHBOR_SOLICIT] ||
+                                                                    icmp6stat.icp6s_outhist[ND_NEIGHBOR_SOLICIT] ||
+                                                                    icmp6stat.icp6s_inhist[ND_NEIGHBOR_ADVERT] ||
+                                                                    icmp6stat.icp6s_outhist[ND_NEIGHBOR_ADVERT]))) {
+                do_icmp6_neighbor = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmpneighbor");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmpneighbor", NULL, "icmp", NULL, "IPv6 Neighbor Messages", "messages/s", 10500, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InSolicits", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutSolicits", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InAdvertisements", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutAdvertisements", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InSolicits", icmp6stat.icp6s_inhist[ND_NEIGHBOR_SOLICIT]);
+                rrddim_set(st, "OutSolicits", icmp6stat.icp6s_outhist[ND_NEIGHBOR_SOLICIT]);
+                rrddim_set(st, "InAdvertisements", icmp6stat.icp6s_inhist[ND_NEIGHBOR_ADVERT]);
+                rrddim_set(st, "OutAdvertisements", icmp6stat.icp6s_outhist[ND_NEIGHBOR_ADVERT]);
+                rrdset_done(st);
+            }
+
+            // --------------------------------------------------------------------
+
+            if (do_icmp6_types == CONFIG_ONDEMAND_YES || (do_icmp6_types == CONFIG_ONDEMAND_ONDEMAND && (
+                                                                    icmp6stat.icp6s_inhist[1] ||
+                                                                    icmp6stat.icp6s_inhist[128] ||
+                                                                    icmp6stat.icp6s_inhist[129] ||
+                                                                    icmp6stat.icp6s_inhist[136] ||
+                                                                    icmp6stat.icp6s_outhist[1] ||
+                                                                    icmp6stat.icp6s_outhist[128] ||
+                                                                    icmp6stat.icp6s_outhist[129] ||
+                                                                    icmp6stat.icp6s_outhist[133] ||
+                                                                    icmp6stat.icp6s_outhist[135] ||
+                                                                    icmp6stat.icp6s_outhist[136]))) {
+                do_icmp6_types = CONFIG_ONDEMAND_YES;
+                st = rrdset_find("ipv6.icmptypes");
+                if (unlikely(!st)) {
+                    st = rrdset_create("ipv6", "icmptypes", NULL, "icmp", NULL, "IPv6 ICMP Types",
+                                       "messages/s", 10700, update_every, RRDSET_TYPE_LINE);
+
+                    rrddim_add(st, "InType1", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InType128", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InType129", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "InType136", NULL, 1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutType1", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutType128", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutType129", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutType133", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutType135", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                    rrddim_add(st, "OutType143", NULL, -1, 1, RRDDIM_INCREMENTAL);
+                } else
+                    rrdset_next(st);
+
+                rrddim_set(st, "InType1", icmp6stat.icp6s_inhist[1]);
+                rrddim_set(st, "InType128", icmp6stat.icp6s_inhist[128]);
+                rrddim_set(st, "InType129", icmp6stat.icp6s_inhist[129]);
+                rrddim_set(st, "InType136", icmp6stat.icp6s_inhist[136]);
+                rrddim_set(st, "OutType1", icmp6stat.icp6s_outhist[1]);
+                rrddim_set(st, "OutType128", icmp6stat.icp6s_outhist[128]);
+                rrddim_set(st, "OutType129", icmp6stat.icp6s_outhist[129]);
+                rrddim_set(st, "OutType133", icmp6stat.icp6s_outhist[133]);
+                rrddim_set(st, "OutType135", icmp6stat.icp6s_outhist[135]);
+                rrddim_set(st, "OutType143", icmp6stat.icp6s_outhist[143]);
+                rrdset_done(st);
+            }
+        }
+    }
+
+    // --------------------------------------------------------------------
+
+    if (likely(do_uptime)) {
+        if (unlikely(GETSYSCTL("kern.boottime", boot_time))) {
+            do_uptime = 0;
+            error("DISABLED: system.uptime");
+        } else {
+            clock_gettime(CLOCK_REALTIME, &cur_time);
+            st = rrdset_find("system.uptime");
+
+            if(unlikely(!st)) {
+                st = rrdset_create("system", "uptime", NULL, "uptime", NULL, "System Uptime", "seconds", 1000, update_every, RRDSET_TYPE_LINE);
+                rrddim_add(st, "uptime", NULL, 1, 1, RRDDIM_ABSOLUTE);
+            }
+            else rrdset_next(st);
+
+            rrddim_set(st, "uptime", cur_time.tv_sec - boot_time.tv_sec);
+            rrdset_done(st);
+        }
+    }
+
+    return 0;
+}
+
+int getsysctl(const char *name, void *ptr, size_t len)
+{
+    size_t nlen = len;
+
+    if (unlikely(sysctlbyname(name, ptr, &nlen, NULL, 0) == -1)) {
+        error("MACOS: sysctl(%s...) failed: %s", name, strerror(errno));
+        return 1;
+    }
+    if (unlikely(nlen != len)) {
+        error("MACOS: sysctl(%s...) expected %lu, got %lu", name, (unsigned long)len, (unsigned long)nlen);
+        return 1;
+    }
+    return 0;
+}