]> git.saurik.com Git - apple/network_cmds.git/blobdiff - netstat.tproj/if.c
network_cmds-606.100.3.tar.gz
[apple/network_cmds.git] / netstat.tproj / if.c
index 6428d96dc2221884eb48bb2908e94825a162296b..2fe6182a68908c6596fb3d0217fc9b288b2180e9 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2008-2019 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * SUCH DAMAGE.
  */
 
-#ifndef lint
-/*
-static char sccsid[] = "@(#)if.c       8.3 (Berkeley) 4/28/95";
-*/
-static const char rcsid[] =
-       "$Id: if.c,v 1.7 2006/01/16 04:53:59 lindak Exp $";
-#endif /* not lint */
-
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/sysctl.h>
 #include <sys/ioctl.h>
 #include <sys/time.h>
+#include <sys/kern_control.h>
 
 #include <net/if.h>
 #include <net/if_var.h>
@@ -80,6 +73,7 @@ static const char rcsid[] =
 #include <net/if_llreach.h>
 #include <net/ethernet.h>
 #include <net/route.h>
+#include <net/ntstat.h>
 
 #include <net/pktsched/pktsched.h>
 #include <net/classq/if_classq.h>
@@ -94,8 +88,12 @@ static const char rcsid[] =
 #include <string.h>
 #include <unistd.h>
 #include <stdlib.h>
+#include <stddef.h>
 #include <err.h>
 #include <errno.h>
+#include <fcntl.h>
+
+#include <assert.h>
 
 #include "netstat.h"
 
@@ -113,12 +111,8 @@ static void catchalarm (int);
 static char *sec2str(time_t);
 static void llreach_sysctl(uint32_t);
 static char *nsec_to_str(unsigned long long);
-static char *qtype2str(classq_type_t);
 static char *sched2str(unsigned int);
-static char *qid2str(unsigned int);
-static char *qstate2str(unsigned int);
-static char *tcqslot2str(unsigned int);
-static char *rate2str(long double);
+static char *pri2str(unsigned int i);
 
 #define AVGN_MAX       8
 
@@ -128,24 +122,12 @@ struct queue_stats {
        double                   avg_packets;
        u_int64_t                prev_bytes;
        u_int64_t                prev_packets;
-       unsigned int             printed;
        unsigned int             handle;
 };
 
-static void print_cbqstats(int slot, struct cbq_classstats *,
-    struct queue_stats *);
-static void print_priqstats(int slot, struct priq_classstats *,
-    struct queue_stats *);
-static void print_hfscstats(int slot, struct hfsc_classstats *,
-    struct queue_stats *);
-static void print_fairqstats(int slot, struct fairq_classstats *,
-    struct queue_stats *);
-static void print_tcqstats(int slot, struct tcq_classstats *,
-    struct queue_stats *);
-static void print_qfqstats(int slot, struct qfq_classstats *,
-    struct queue_stats *);
-static void print_sfbstats(struct sfb_stats *);
 static void update_avg(struct if_ifclassq_stats *, struct queue_stats *);
+static void print_fq_codel_stats(int slot, struct fq_codel_classstats *,
+    struct queue_stats *);
 
 struct queue_stats qstats[IFCQ_SC_MAX];
 
@@ -203,7 +185,7 @@ multipr(int family, char *buf, char *lim)
                struct sockaddr *rti_info[RTAX_MAX];
                struct sockaddr *sa;
                const char *fmt = 0;
-               
+
                next += ifmam->ifmam_msglen;
                if (ifmam->ifmam_type == RTM_IFINFO2)
                        break;
@@ -211,13 +193,13 @@ multipr(int family, char *buf, char *lim)
                        continue;
                get_rti_info(ifmam->ifmam_addrs, (struct sockaddr*)(ifmam + 1), rti_info);
                sa = rti_info[RTAX_IFA];
-               
+
                if (sa->sa_family != family)
                        continue;
                switch (sa->sa_family) {
                        case AF_INET: {
                                struct sockaddr_in *sin = (struct sockaddr_in *)sa;
-                               
+
                                fmt = routename(sin->sin_addr.s_addr);
                                break;
                        }
@@ -244,7 +226,7 @@ multipr(int family, char *buf, char *lim)
        #endif /* INET6 */
                        case AF_LINK: {
                                struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
-                               
+
                                switch (sdl->sdl_type) {
                                case IFT_ETHER:
                                case IFT_FDDI:
@@ -316,8 +298,13 @@ intpr(void (*pfunc)(char *))
        }
 
        if (!pfunc) {
-               printf("%-5.5s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
-                      "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
+               if (lflag) {
+                       printf("%-10.10s %-5.5s %-39.39s %-39.39s %8.8s %5.5s",
+                                  "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
+               } else {
+                       printf("%-10.10s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
+                                  "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
+               }
                if (prioflag >= 0)
                        printf(" %8.8s %8.8s", "Itcpkts", "Ipvpkts");
                if (bflag) {
@@ -373,17 +360,19 @@ intpr(void (*pfunc)(char *))
                        int mibname[6];
                        size_t miblen = sizeof(struct ifmibdata_supplemental);
 
-                       strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
-                       name[sdl->sdl_nlen] = 0;
                        if (interface != 0 && if2m->ifm_index != ifindex)
                                continue;
-                       cp = index(name, '\0');
+
+                       /* The interface name is not a zero-ended string */
+                       memcpy(name, sdl->sdl_data, MIN(sizeof(name) - 1, sdl->sdl_nlen));
+                       name[MIN(sizeof(name) - 1, sdl->sdl_nlen)] = 0;
 
                        if (pfunc) {
                                (*pfunc)(name);
                                continue;
                        }
 
+                       cp = index(name, '\0');
                        if ((if2m->ifm_flags & IFF_UP) == 0)
                                *cp++ = '*';
                        *cp = '\0';
@@ -473,16 +462,20 @@ intpr(void (*pfunc)(char *))
                } else {
                        continue;
                }
-               printf("%-5.5s %-5u ", name, mtu);
+               if (lflag) {
+                       printf("%-10.10s %-5u ", name, mtu);
+               } else {
+                       printf("%-5.5s %-5u ", name, mtu);
+               }
 
                if (sa == 0) {
-                       printf("%-13.13s ", "none");
-                       printf("%-15.15s ", "none");
+                       printf(lflag ? "%-39.39s " : "%-13.13s ", "none");
+                       printf(lflag ? "%-39.39s " : "%-15.15s ", "none");
                } else {
                        switch (sa->sa_family) {
                        case AF_UNSPEC:
-                               printf("%-13.13s ", "none");
-                               printf("%-15.15s ", "none");
+                               printf(lflag ? "%-39.39s " : "%-13.13s ", "none");
+                               printf(lflag ? "%-39.39s " : "%-15.15s ", "none");
                                break;
 
                        case AF_INET: {
@@ -495,12 +488,12 @@ intpr(void (*pfunc)(char *))
                                    ((struct sockaddr_in *)
                                    rti_info[RTAX_NETMASK])->sin_len);
 
-                               printf("%-13.13s ",
+                               printf(lflag ? "%-39.39s " : "%-13.13s ",
                                    netname(sin->sin_addr.s_addr &
                                    mask.sin_addr.s_addr,
                                    ntohl(mask.sin_addr.s_addr)));
 
-                               printf("%-15.15s ",
+                               printf(lflag ? "%-39.39s " : "%-15.15s ",
                                    routename(sin->sin_addr.s_addr));
 
                                network_layer = 1;
@@ -513,8 +506,8 @@ intpr(void (*pfunc)(char *))
                                struct sockaddr *mask =
                                    (struct sockaddr *)rti_info[RTAX_NETMASK];
 
-                               printf("%-11.11s ", netname6(sin6, mask));
-                               printf("%-17.17s ", (char *)inet_ntop(AF_INET6,
+                               printf(lflag ? "%-39.39s " : "%-11.11s ", netname6(sin6, mask));
+                               printf(lflag ? "%-39.39s " : "%-17.17s ", (char *)inet_ntop(AF_INET6,
                                    &sin6->sin6_addr, ntop_buf,
                                    sizeof(ntop_buf)));
 
@@ -530,7 +523,7 @@ intpr(void (*pfunc)(char *))
                                n = sdl->sdl_alen;
                                snprintf(linknum, sizeof(linknum),
                                    "<Link#%d>", sdl->sdl_index);
-                               m = printf("%-11.11s ", linknum);
+                               m = printf(lflag ? "%-39.39s " : "%-11.11s ", linknum);
                                goto hexprint;
                        }
 
@@ -544,7 +537,7 @@ intpr(void (*pfunc)(char *))
                                while (--n >= 0)
                                        m += printf("%02x%c", *cp++ & 0xff,
                                                    n > 0 ? ':' : ' ');
-                               m = 30 - m;
+                               m = (lflag ? 80 : 30) - m;
                                while (m-- > 0)
                                        putchar(' ');
 
@@ -1068,6 +1061,8 @@ loop:
                                    sum->ift_fb - total->ift_fb);
                }
                *total = *sum;
+
+               free(ifmsuppall);
        }
        if (!first)
                putchar('\n');
@@ -1357,7 +1352,7 @@ aqstatpr(void)
        struct if_ifclassq_stats *ifcqs;
        sigset_t sigset, oldsigset;
        u_int32_t scheduler;
-       int s, n, tcq = 0;
+       int s, n;
 
        if (cq < -1 || cq >= IFCQ_SC_MAX) {
                fprintf(stderr, "Invalid classq index (range is 0-%d)\n",
@@ -1410,31 +1405,16 @@ loop:
                goto done;
        }
        scheduler = ifcqs->ifqs_scheduler;
-       tcq = (scheduler == PKTSCHEDT_TCQ);
 
        printf("%s:\n"
-           "%s     [ sched: %9s %sqlength:  %3d/%3d ]\n",
-           interface, tcq ? "  " : "", sched2str(ifcqs->ifqs_scheduler),
-           tcq ? "" : " ", ifcqs->ifqs_len, ifcqs->ifqs_maxlen);
-       printf("%s     [ pkts: %10llu %sbytes: %10llu "
-           "%sdropped pkts: %6llu bytes: %6llu ]\n",
-           (scheduler != PKTSCHEDT_TCQ) ? "" : "  ",
-           ifcqs->ifqs_xmitcnt.packets, tcq ? "" : " ",
-           ifcqs->ifqs_xmitcnt.bytes, tcq ? "" : " ",
+           "     [ sched: %9s  qlength:  %3d/%3d ]\n",
+           interface, sched2str(ifcqs->ifqs_scheduler),
+           ifcqs->ifqs_len, ifcqs->ifqs_maxlen);
+       printf("     [ pkts: %10llu  bytes: %10llu "
+           " dropped pkts: %6llu bytes: %6llu ]\n",
+           ifcqs->ifqs_xmitcnt.packets, ifcqs->ifqs_xmitcnt.bytes,
            ifcqs->ifqs_dropcnt.packets, ifcqs->ifqs_dropcnt.bytes);
 
-       for (n = 0; n < IFCQ_SC_MAX; n++) {
-               qstats[n].printed = 0;
-               if (!tcq)
-                       continue;
-               ifqr.ifqr_slot = n;
-               if (ioctl(s, SIOCGIFQUEUESTATS, (char *)&ifqr) < 0) {
-                       perror("Warning: ioctl(SIOCGIFQUEUESTATS)");
-                       goto done;
-               }
-               qstats[n].handle = ifcqs->ifqs_tcq_stats.class_handle;
-       }
-
        for (n = 0; n < IFCQ_SC_MAX && scheduler != PKTSCHEDT_NONE; n++) {
                if (cq >= 0 && cq != n)
                        continue;
@@ -1448,28 +1428,9 @@ loop:
                update_avg(ifcqs, &qstats[n]);
 
                switch (scheduler) {
-                       case PKTSCHEDT_CBQ:
-                               print_cbqstats(n, &ifcqs->ifqs_cbq_stats,
-                                   &qstats[n]);
-                               break;
-                       case PKTSCHEDT_HFSC:
-                               print_hfscstats(n, &ifcqs->ifqs_hfsc_stats,
-                                   &qstats[n]);
-                               break;
-                       case PKTSCHEDT_PRIQ:
-                               print_priqstats(n, &ifcqs->ifqs_priq_stats,
-                                   &qstats[n]);
-                               break;
-                       case PKTSCHEDT_FAIRQ:
-                               print_fairqstats(n, &ifcqs->ifqs_fairq_stats,
-                                   &qstats[n]);
-                               break;
-                       case PKTSCHEDT_TCQ:
-                               print_tcqstats(n, &ifcqs->ifqs_tcq_stats,
-                                   &qstats[n]);
-                               break;
-                       case PKTSCHEDT_QFQ:
-                               print_qfqstats(n, &ifcqs->ifqs_qfq_stats,
+                       case PKTSCHEDT_FQ_CODEL:
+                               print_fq_codel_stats(n,
+                                   &ifcqs->ifqs_fq_codel_stats,
                                    &qstats[n]);
                                break;
                        case PKTSCHEDT_NONE:
@@ -1500,275 +1461,69 @@ done:
 }
 
 static void
-print_cbqstats(int slot, struct cbq_classstats *cs, struct queue_stats *qs)
-{
-       printf(" %2d: [ pkts: %10llu  bytes: %10llu  "
-           "dropped pkts: %6llu bytes: %6llu ]\n", slot,
-           (unsigned long long)cs->xmit_cnt.packets,
-           (unsigned long long)cs->xmit_cnt.bytes,
-           (unsigned long long)cs->drop_cnt.packets,
-           (unsigned long long)cs->drop_cnt.bytes);
-       printf("     [ qlength: %3d/%3d  borrows: %6u  "
-           "suspends: %6u  qalg: %s ]\n", cs->qcnt, cs->qmax,
-           cs->borrows, cs->delays, qtype2str(cs->qtype));
-       printf("     [ service class: %5s ]\n", qid2str(cs->handle));
-
-       if (qs->avgn >= 2) {
-               printf("     [ measured: %7.1f packets/s, %s/s ]\n",
-                   qs->avg_packets / interval,
-                   rate2str((8 * qs->avg_bytes) / interval));
-       }
-
-       if (qflag < 2)
-               return;
-
-       switch (cs->qtype) {
-       case Q_SFB:
-               print_sfbstats(&cs->sfb);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-print_priqstats(int slot, struct priq_classstats *cs, struct queue_stats *qs)
-{
-       printf(" %2d: [ pkts: %10llu  bytes: %10llu  "
-           "dropped pkts: %6llu bytes: %6llu ]\n", slot,
-           (unsigned long long)cs->xmitcnt.packets,
-           (unsigned long long)cs->xmitcnt.bytes,
-           (unsigned long long)cs->dropcnt.packets,
-           (unsigned long long)cs->dropcnt.bytes);
-       printf("     [ qlength: %3d/%3d  qalg: %11s  service class: %5s ]\n",
-            cs->qlength, cs->qlimit, qtype2str(cs->qtype),
-            qid2str(cs->class_handle));
-
-       if (qs->avgn >= 2) {
-               printf("     [ measured: %7.1f packets/s, %s/s ]\n",
-                   qs->avg_packets / interval,
-                   rate2str((8 * qs->avg_bytes) / interval));
-       }
-
-       if (qflag < 2)
-               return;
-
-       switch (cs->qtype) {
-       case Q_SFB:
-               print_sfbstats(&cs->sfb);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-print_hfscstats(int slot, struct hfsc_classstats *cs, struct queue_stats *qs)
-{
-       printf(" %2d: [ pkts: %10llu  bytes: %10llu  "
-           "dropped pkts: %6llu bytes: %6llu ]\n", slot,
-           (unsigned long long)cs->xmit_cnt.packets,
-           (unsigned long long)cs->xmit_cnt.bytes,
-           (unsigned long long)cs->drop_cnt.packets,
-           (unsigned long long)cs->drop_cnt.bytes);
-       printf("     [ qlength: %3d/%3d  qalg: %11s  service class: %5s ]\n",
-            cs->qlength, cs->qlimit, qtype2str(cs->qtype),
-            qid2str(cs->class_handle));
-
-       if (qs->avgn >= 2) {
-               printf("     [ measured: %7.1f packets/s, %s/s ]\n",
-                   qs->avg_packets / interval,
-                   rate2str((8 * qs->avg_bytes) / interval));
-       }
-
-       if (qflag < 2)
-               return;
-
-       switch (cs->qtype) {
-       case Q_SFB:
-               print_sfbstats(&cs->sfb);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-print_fairqstats(int slot, struct fairq_classstats *cs, struct queue_stats *qs)
-{
-       printf(" %2d: [ pkts: %10llu  bytes: %10llu  "
-           "dropped pkts: %6llu bytes: %6llu ]\n", slot,
-           (unsigned long long)cs->xmit_cnt.packets,
-           (unsigned long long)cs->xmit_cnt.bytes,
-           (unsigned long long)cs->drop_cnt.packets,
-           (unsigned long long)cs->drop_cnt.bytes);
-       printf("     [ qlength: %3d/%3d  qalg: %11s  service class: %5s ]]\n",
-           cs->qlength, cs->qlimit, qtype2str(cs->qtype),
-           qid2str(cs->class_handle));
-
-       if (qs->avgn >= 2) {
-               printf("     [ measured: %7.1f packets/s, %s/s ]\n",
-                   qs->avg_packets / interval,
-                   rate2str((8 * qs->avg_bytes) / interval));
-       }
-
-       if (qflag < 2)
-               return;
-
-       switch (cs->qtype) {
-       case Q_SFB:
-               print_sfbstats(&cs->sfb);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-print_tcqstats(int slot, struct tcq_classstats *cs, struct queue_stats *qs)
+print_fq_codel_stats(int pri, struct fq_codel_classstats *fqst,
+    struct queue_stats *qs)
 {
-       int n;
+       int i = 0;
 
-       if (qs->printed)
+       if (fqst->fcls_service_class == 0 && fqst->fcls_pri == 0)
                return;
-
-       qs->handle = cs->class_handle;
-       qs->printed++;
-
-       for (n = 0; n < IFCQ_SC_MAX; n++) {
-               if (&qstats[n] != qs && qstats[n].handle == qs->handle)
-                       qstats[n].printed++;
-       }
-
-       printf("%5s: [ pkts: %10llu bytes: %10llu "
-           "dropped pkts: %6llu bytes: %6llu ]\n", tcqslot2str(slot),
-           (unsigned long long)cs->xmitcnt.packets,
-           (unsigned long long)cs->xmitcnt.bytes,
-           (unsigned long long)cs->dropcnt.packets,
-           (unsigned long long)cs->dropcnt.bytes);
-       printf("       [ qlength: %3d/%3d qalg: %11s "
-           "svc class: %9s %-13s ]\n", cs->qlength, cs->qlimit,
-           qtype2str(cs->qtype), qid2str(cs->class_handle),
-           qstate2str(cs->qstate));
-
-       if (qs->avgn >= 2) {
-               printf("       [ measured: %7.1f packets/s, %s/s ]\n",
-                   qs->avg_packets / interval,
-                   rate2str((8 * qs->avg_bytes) / interval));
-       }
+       printf("=====================================================\n");
+       printf("     [ pri: %s (%d)\tsrv_cl: 0x%x\tquantum: %d\tdrr_max: %d ]\n",
+           pri2str(fqst->fcls_pri), fqst->fcls_pri,
+           fqst->fcls_service_class, fqst->fcls_quantum,
+           fqst->fcls_drr_max);
+       printf("     [ queued pkts: %llu\tbytes: %llu ]\n",
+           fqst->fcls_pkt_cnt, fqst->fcls_byte_cnt);
+       printf("     [ dequeued pkts: %llu\tbytes: %llu ]\n",
+           fqst->fcls_dequeue, fqst->fcls_dequeue_bytes);
+       printf("     [ budget: %lld\ttarget qdelay: %10s\t",
+           fqst->fcls_budget, nsec_to_str(fqst->fcls_target_qdelay));
+       printf("update interval:%10s ]\n",
+           nsec_to_str(fqst->fcls_update_interval));
+       printf("     [ flow control: %u\tfeedback: %u\tstalls: %u\tfailed: %u ]\n",
+           fqst->fcls_flow_control, fqst->fcls_flow_feedback,
+           fqst->fcls_dequeue_stall, fqst->fcls_flow_control_fail);
+       printf("     [ drop overflow: %llu\tearly: %llu\tmemfail: %u\tduprexmt:%u ]\n",
+           fqst->fcls_drop_overflow, fqst->fcls_drop_early,
+           fqst->fcls_drop_memfailure, fqst->fcls_dup_rexmts);
+       printf("     [ flows total: %u\tnew: %u\told: %u ]\n",
+           fqst->fcls_flows_cnt,
+           fqst->fcls_newflows_cnt, fqst->fcls_oldflows_cnt);
+       printf("     [ throttle on: %u\toff: %u\tdrop: %u ]\n",
+           fqst->fcls_throttle_on, fqst->fcls_throttle_off,
+           fqst->fcls_throttle_drops);
+       printf("     [ compressible pkts: %u compressed pkts: %u]\n",
+           fqst->fcls_pkts_compressible, fqst->fcls_pkts_compressed);
 
        if (qflag < 2)
                return;
 
-       switch (cs->qtype) {
-       case Q_SFB:
-               print_sfbstats(&cs->sfb);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-print_qfqstats(int slot, struct qfq_classstats *cs, struct queue_stats *qs)
-{
-       printf(" %2d: [ pkts: %10llu  bytes: %10llu  "
-           "dropped pkts: %6llu bytes: %6llu ]\n", slot,
-           (unsigned long long)cs->xmitcnt.packets,
-           (unsigned long long)cs->xmitcnt.bytes,
-           (unsigned long long)cs->dropcnt.packets,
-           (unsigned long long)cs->dropcnt.bytes);
-       printf("     [ qlength: %3d/%3d  index: %10u  weight: %12u "
-           "lmax: %7u ]\n", cs->qlength, cs->qlimit, cs->index,
-           cs->weight, cs->lmax);
-       printf("     [ qalg: %10s  svc class: %6s %-35s ]\n",
-           qtype2str(cs->qtype), qid2str(cs->class_handle),
-           qstate2str(cs->qstate));
-
-       if (qs->avgn >= 2) {
-               printf("     [ measured: %7.1f packets/s, %s/s ]\n",
-                   qs->avg_packets / interval,
-                   rate2str((8 * qs->avg_bytes) / interval));
-       }
-
-       if (qflag < 2)
-               return;
-
-       switch (cs->qtype) {
-       case Q_SFB:
-               print_sfbstats(&cs->sfb);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-print_sfbstats(struct sfb_stats *sfb)
-{
-       struct sfbstats *sp = &sfb->sfbstats;
-       int i, j, cur = sfb->current;
-
-       printf("\n");
-       printf("     [ early drop: %12llu  rlimit drop: %11llu  "
-           "marked: %11llu ]\n",
-           sp->drop_early, sp->drop_pbox, sp->marked_packets);
-       printf("     [ penalized: %13llu  rehash cnt: %12llu  "
-           "current: %10u ]\n", sp->pbox_packets, sp->num_rehash, cur);
-       printf("     [ deque avg: %13s  ", nsec_to_str(sp->dequeue_avg));
-       printf("rehash intvl: %11s]\n", nsec_to_str(sp->rehash_intval));
-       printf("     [ holdtime: %14s  ", nsec_to_str(sp->hold_time));
-       printf("pboxtime: %14s ]\n", nsec_to_str(sp->pbox_time));
-       printf("     [ allocation: %12u  drop thresh: %11u ]\n",
-           sfb->allocation, sfb->dropthresh);
-       printf("     [ flow controlled: %7llu  adv feedback: %10llu ]\n",
-           sp->flow_controlled, sp->flow_feedback);
-
-       printf("\n\t\t\t\tCurrent bins (set %d)", cur);
-       for (i = 0; i < SFB_LEVELS; ++i) {
-               unsigned int q;
-               double p;
-
-               printf("\n\tLevel: %d\n", i);
-               for (j = 0; j < SFB_BINS; ++j) {
-                       if ((j % 4) == 0)
-                               printf("\t%6d:\t", j + 1);
-                       p = sfb->binstats[cur].stats[i][j].pmark;
-                       q = sfb->binstats[cur].stats[i][j].pkts;
-                       if (p > 0) {
-                               p /= (1 << SFB_FP_SHIFT);
-                               printf("[%1.4f %4u]", p, q);
-                       } else {
-                               printf("[           ]");
-                       }
-                       if (j > 0 && ((j + 1) % 4) == 0)
-                               printf("\n");
-               }
-       }
-
-       cur ^= 1;
-       printf("\n\t\t\t\tWarm up bins (set %d)", cur);
-       for (i = 0; i < SFB_LEVELS; ++i) {
-               unsigned int q;
-               double p;
-
-               printf("\n\tLevel: %d\n", i);
-               for (j = 0; j < SFB_BINS; ++j) {
-                       if ((j % 4) == 0)
-                               printf("\t%6d:\t", j + 1);
-                       p = sfb->binstats[cur].stats[i][j].pmark;
-                       q = sfb->binstats[cur].stats[i][j].pkts;
-                       if (p > 0) {
-                               p /= (1 << SFB_FP_SHIFT);
-                               printf("[%1.4f %4u]", p, q);
-                       } else {
-                               printf("[           ]");
-                       }
-                       if (j > 0 && ((j + 1) % 4) == 0)
-                               printf("\n");
+       if (fqst->fcls_flowstats_cnt > 0) {
+               printf("Flowhash\tBytes\tMin qdelay\tFlags\t\n");
+               for (i = 0; i < fqst->fcls_flowstats_cnt; i++) {
+                       printf("%u\t%u\t%14s\t",
+                           fqst->fcls_flowstats[i].fqst_flowhash,
+                           fqst->fcls_flowstats[i].fqst_bytes,
+                           nsec_to_str(fqst->fcls_flowstats[i].fqst_min_qdelay));
+                       if (fqst->fcls_flowstats[i].fqst_flags &
+                           FQ_FLOWSTATS_OLD_FLOW)
+                               printf("O");
+                       if (fqst->fcls_flowstats[i].fqst_flags &
+                           FQ_FLOWSTATS_NEW_FLOW)
+                               printf("N");
+                       if (fqst->fcls_flowstats[i].fqst_flags &
+                           FQ_FLOWSTATS_LARGE_FLOW)
+                               printf("L");
+                       if (fqst->fcls_flowstats[i].fqst_flags &
+                           FQ_FLOWSTATS_DELAY_HIGH)
+                               printf("D");
+                       if (fqst->fcls_flowstats[i].fqst_flags &
+                           FQ_FLOWSTATS_FLOWCTL_ON)
+                               printf("F");
+                       printf("\n");
                }
        }
-       printf("\n");
 }
 
 static void
@@ -1780,29 +1535,9 @@ update_avg(struct if_ifclassq_stats *ifcqs, struct queue_stats *qs)
        n = qs->avgn;
 
        switch (ifcqs->ifqs_scheduler) {
-       case PKTSCHEDT_CBQ:
-               b = ifcqs->ifqs_cbq_stats.xmit_cnt.bytes;
-               p = ifcqs->ifqs_cbq_stats.xmit_cnt.packets;
-               break;
-       case PKTSCHEDT_PRIQ:
-               b = ifcqs->ifqs_priq_stats.xmitcnt.bytes;
-               p = ifcqs->ifqs_priq_stats.xmitcnt.packets;
-               break;
-       case PKTSCHEDT_HFSC:
-               b = ifcqs->ifqs_hfsc_stats.xmit_cnt.bytes;
-               p = ifcqs->ifqs_hfsc_stats.xmit_cnt.packets;
-               break;
-       case PKTSCHEDT_FAIRQ:
-               b = ifcqs->ifqs_fairq_stats.xmit_cnt.bytes;
-               p = ifcqs->ifqs_fairq_stats.xmit_cnt.packets;
-               break;
-       case PKTSCHEDT_TCQ:
-               b = ifcqs->ifqs_tcq_stats.xmitcnt.bytes;
-               p = ifcqs->ifqs_tcq_stats.xmitcnt.packets;
-               break;
-       case PKTSCHEDT_QFQ:
-               b = ifcqs->ifqs_qfq_stats.xmitcnt.bytes;
-               p = ifcqs->ifqs_qfq_stats.xmitcnt.packets;
+       case PKTSCHEDT_FQ_CODEL:
+               b = ifcqs->ifqs_fq_codel_stats.fcls_dequeue_bytes;
+               p = ifcqs->ifqs_fq_codel_stats.fcls_dequeue;
                break;
        default:
                b = 0;
@@ -1831,41 +1566,9 @@ update_avg(struct if_ifclassq_stats *ifcqs, struct queue_stats *qs)
                qs->avgn++;
 }
 
-static char *
-qtype2str(classq_type_t t)
-{
-       char *c;
-
-       switch (t) {
-        case Q_DROPHEAD:
-               c = "DROPHEAD";
-               break;
-        case Q_DROPTAIL:
-               c = "DROPTAIL";
-               break;
-        case Q_RED:
-               c = "RED";
-               break;
-        case Q_RIO:
-               c = "RIO";
-               break;
-        case Q_BLUE:
-               c = "BLUE";
-               break;
-        case Q_SFB:
-               c = "SFB";
-               break;
-       default:
-               c = "UNKNOWN";
-               break;
-       }
-
-       return (c);
-}
-
 #define NSEC_PER_SEC    1000000000      /* nanoseconds per second */
-#define USEC_PER_SEC    1000000                /* nanoseconds per second */
-#define MSEC_PER_SEC    1000           /* nanoseconds per second */
+#define USEC_PER_SEC    1000000                /* microseconds per second */
+#define MSEC_PER_SEC    1000           /* milliseconds per second */
 
 static char *
 nsec_to_str(unsigned long long nsec)
@@ -1901,23 +1604,8 @@ sched2str(unsigned int s)
        case PKTSCHEDT_NONE:
                c = "NONE";
                break;
-       case PKTSCHEDT_CBQ:
-               c = "CBQ";
-               break;
-       case PKTSCHEDT_HFSC:
-               c = "HFSC";
-               break;
-       case PKTSCHEDT_PRIQ:
-               c = "PRIQ";
-               break;
-       case PKTSCHEDT_FAIRQ:
-               c = "FAIRQ";
-               break;
-       case PKTSCHEDT_TCQ:
-               c = "TCQ";
-               break;
-       case PKTSCHEDT_QFQ:
-               c = "QFQ";
+       case PKTSCHEDT_FQ_CODEL:
+               c = "FQ_CODEL";
                break;
        default:
                c = "UNKNOWN";
@@ -1928,128 +1616,47 @@ sched2str(unsigned int s)
 }
 
 static char *
-qid2str(unsigned int s)
+pri2str(unsigned int i)
 {
        char *c;
-
-       switch (s) {
-       case 0:
-               c = "BE";
-               break;
-       case 1:
+       switch (i) {
+       case 9:
                c = "BK_SYS";
                break;
-       case 2:
+       case 8:
                c = "BK";
                break;
-       case 3:
+       case 7:
+               c = "BE";
+               break;
+       case 6:
                c = "RD";
                break;
-       case 4:
+       case 5:
                c = "OAM";
                break;
-       case 5:
+       case 4:
                c = "AV";
                break;
-       case 6:
+       case 3:
                c = "RV";
                break;
-       case 7:
+       case 2:
                c = "VI";
                break;
-       case 8:
+       case 1:
                c = "VO";
                break;
-       case 9:
-               c = "CTL";
-               break;
-       default:
-               c = "UNKNOWN";
-               break;
-       }
-
-       return (c);
-}
-
-static char *
-tcqslot2str(unsigned int s)
-{
-       char *c;
-
-       switch (s) {
        case 0:
-       case 3:
-       case 4:
-               c = "0,3,4";
-               break;
-       case 1:
-       case 2:
-               c = "1,2";
-               break;
-       case 5:
-       case 6:
-       case 7:
-               c = "5-7";
-               break;
-       case 8:
-       case 9:
-               c = "8,9";
+               c = "CTL";
                break;
        default:
                c = "?";
                break;
        }
-
-       return (c);
-}
-
-static char *
-qstate2str(unsigned int s)
-{
-       char *c;
-
-       switch (s) {
-       case QS_RUNNING:
-               c = "(RUNNING)";
-               break;
-       case QS_SUSPENDED:
-               c = "(SUSPENDED)";
-               break;
-       default:
-               c = "(UNKNOWN)";
-               break;
-       }
-
        return (c);
 }
 
-#define        R2S_BUFS        8
-#define        RATESTR_MAX     16
-
-static char *
-rate2str(long double rate)
-{
-       char            *buf;
-       static char      r2sbuf[R2S_BUFS][RATESTR_MAX];  /* ring bufer */
-       static int       idx = 0;
-       int              i;
-       static const char unit[] = " KMG";
-
-       buf = r2sbuf[idx++];
-       if (idx == R2S_BUFS)
-               idx = 0;
-
-       for (i = 0; rate >= 1000 && i <= 3; i++)
-               rate /= 1000;
-
-       if ((int)(rate * 100) % 100)
-               snprintf(buf, RATESTR_MAX, "%.2Lf%cb", rate, unit[i]);
-       else
-               snprintf(buf, RATESTR_MAX, "%lld%cb", (int64_t)rate, unit[i]);
-
-       return (buf);
-}
-
 void
 rxpollstatpr(void)
 {
@@ -2057,6 +1664,7 @@ rxpollstatpr(void)
        size_t miblen = sizeof (ifmsupp);
        struct itimerval timer_interval;
        struct if_rxpoll_stats *sp;
+       struct if_netif_stats *np;
        sigset_t sigset, oldsigset;
        unsigned int ifindex;
        int name[6];
@@ -2097,8 +1705,11 @@ loop:
            interface, sp->ifi_poll_on_req, sp->ifi_poll_on_err);
        printf("     [ poll off requests: %15u  errors: %27u ]\n",
            sp->ifi_poll_off_req, sp->ifi_poll_off_err);
-       printf("     [ polled packets: %18llu  polled bytes: %21llu ]\n",
-           sp->ifi_poll_packets, sp->ifi_poll_bytes);
+       printf("     [ polled packets: %18llu  per poll limit: %19u ]\n",
+           sp->ifi_poll_packets, sp->ifi_poll_packets_limit);
+       printf("     [ polled bytes: %20llu ]\n", sp->ifi_poll_bytes);
+       printf("     [ poll interval: %14llu nsec ]\n",
+           sp->ifi_poll_interval_time);
        printf("     [ sampled packets avg/min/max: %12u / %12u / %12u ]\n",
            sp->ifi_poll_packets_avg, sp->ifi_poll_packets_min,
            sp->ifi_poll_packets_max);
@@ -2114,6 +1725,518 @@ loop:
        printf("     [ wakeups lowat/hiwat threshold: %10u / %10u ]\n",
            sp->ifi_poll_wakeups_lowat, sp->ifi_poll_wakeups_hiwat);
 
+       np = &ifmsupp.ifmd_netif_stats;
+       printf("     [ mit mode: %24U  cfg idx: %26u ]\n",
+           np->ifn_rx_mit_mode, np->ifn_rx_mit_cfg_idx);
+       printf("     [ cfg packets lo/hi threshold: %12u / %12u ]\n",
+           np->ifn_rx_mit_cfg_packets_lowat, np->ifn_rx_mit_cfg_packets_hiwat);
+       printf("     [ cfg bytes lo/hi threshold:   %12u / %12u ]\n",
+           np->ifn_rx_mit_cfg_bytes_lowat, np->ifn_rx_mit_cfg_bytes_hiwat);
+       printf("     [ cfg interval: %15u nsec ]\n",
+           np->ifn_rx_mit_cfg_interval);
+       printf("     [ mit interval: %15llu nsec ]\n",
+           np->ifn_rx_mit_interval);
+       printf("     [ mit packets avg/min/max:    %12u / %12u / %12u ]\n",
+           np->ifn_rx_mit_packets_avg, np->ifn_rx_mit_packets_min,
+           np->ifn_rx_mit_packets_max);
+       printf("     [ mit bytes avg/min/max:      %12u / %12u / %12u ]\n",
+           np->ifn_rx_mit_bytes_avg, np->ifn_rx_mit_bytes_min,
+           np->ifn_rx_mit_bytes_max);
+
+       fflush(stdout);
+
+       if (interval > 0) {
+               sigemptyset(&sigset);
+               sigaddset(&sigset, SIGALRM);
+               (void) sigprocmask(SIG_BLOCK, &sigset, &oldsigset);
+               if (!signalled) {
+                       sigemptyset(&sigset);
+                       sigsuspend(&sigset);
+               }
+               (void) sigprocmask(SIG_SETMASK, &oldsigset, NULL);
+
+               signalled = NO;
+               goto loop;
+       }
+}
+
+static int
+create_control_socket(const char *control_name)
+{
+       struct sockaddr_ctl sc;
+       struct ctl_info ctl;
+       int fd;
+
+       fd = socket(PF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL);
+       if (fd == -1) {
+               perror("socket(PF_SYSTEM)");
+               return fd;
+       }
+
+       /* Get the control ID for statistics */
+       bzero(&ctl, sizeof(ctl));
+       strlcpy(ctl.ctl_name, control_name, sizeof(ctl.ctl_name));
+       if (ioctl(fd, CTLIOCGINFO, &ctl) == -1)
+       {
+               perror("ioctl(CTLIOCGINFO)");
+               close(fd);
+               return -1;
+       }
+
+       /* Connect to the statistics control */
+       bzero(&sc, sizeof(sc));
+       sc.sc_len = sizeof(sc);
+       sc.sc_family = AF_SYSTEM;
+       sc.ss_sysaddr = SYSPROTO_CONTROL;
+       sc.sc_id = ctl.ctl_id;
+       sc.sc_unit = 0;
+       if (connect(fd, (struct sockaddr*)&sc, sc.sc_len) != 0)
+       {
+               perror("connect(SYSPROTO_CONTROL)");
+               close(fd);
+               return -1;
+       }
+
+       /* Set socket to non-blocking operation */
+       if (fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK) == -1) {
+               perror("fcnt(F_SETFL,O_NONBLOCK)");
+               close(fd);
+               return -1;
+       }
+       return fd;
+}
+
+static int
+add_nstat_src(int fd, const nstat_ifnet_add_param *ifparam,
+               nstat_src_ref_t *outsrc)
+{
+       nstat_msg_add_src_req *addreq;
+       nstat_msg_src_added *addedmsg;
+       nstat_ifnet_add_param *param;
+       char buffer[sizeof(*addreq) + sizeof(*param)];
+       ssize_t result;
+       const u_int32_t addreqsize =
+               offsetof(struct nstat_msg_add_src, param) + sizeof(*param);
+
+       /* Setup the add source request */
+       addreq = (nstat_msg_add_src_req *)buffer;
+       param = (nstat_ifnet_add_param*)addreq->param;
+       bzero(addreq, addreqsize);
+       addreq->hdr.context = (uintptr_t)&buffer;
+       addreq->hdr.type = NSTAT_MSG_TYPE_ADD_SRC;
+       addreq->provider = NSTAT_PROVIDER_IFNET;
+       bzero(param, sizeof(*param));
+       param->ifindex = ifparam->ifindex;
+       param->threshold = ifparam->threshold;
+
+       /* Send the add source request */
+       result = send(fd, addreq, addreqsize, 0);
+       if (result != addreqsize)
+       {
+               if (result == -1)
+                       perror("send(NSTAT_ADD_SRC_REQ)");
+               else
+                       fprintf(stderr, "%s: could only sent %ld out of %d\n",
+                               __func__, result, addreqsize);
+               return -1;
+       }
+
+       /* Receive the response */
+       addedmsg = (nstat_msg_src_added *)buffer;
+       result = recv(fd, addedmsg, sizeof(buffer), 0);
+       if (result < sizeof(*addedmsg))
+       {
+               if (result == -1)
+                       perror("recv(NSTAT_ADD_SRC_RSP)");
+               else
+                       fprintf(stderr, "%s: recv too small, received %ld, "
+                               "expected %lu\n", __func__, result,
+                               sizeof(*addedmsg));
+               return -1;
+       }
+
+       if (addedmsg->hdr.type != NSTAT_MSG_TYPE_SRC_ADDED)
+       {
+               fprintf(stderr, "%s: received wrong message type, received %u "
+                       "expected %u\n", __func__, addedmsg->hdr.type,
+                       NSTAT_MSG_TYPE_SRC_ADDED);
+               return -1;
+       }
+
+       if (addedmsg->hdr.context != (uintptr_t)&buffer)
+       {
+               fprintf(stderr, "%s: received wrong context, received %llu "
+                       "expected %lu\n", __func__, addedmsg->hdr.context,
+                       (uintptr_t)&buffer);
+               return -1;
+       }
+       *outsrc = addedmsg->srcref;
+       return 0;
+}
+
+static int
+rem_nstat_src(int fd, nstat_src_ref_t sref)
+{
+       nstat_msg_rem_src_req *remreq;
+       nstat_msg_src_removed *remrsp;
+       char buffer[sizeof(*remreq)];
+       ssize_t result;
+
+       /* Setup the add source request */
+       remreq = (nstat_msg_rem_src_req *)buffer;
+       bzero(remreq, sizeof(*remreq));
+       remreq->hdr.type = NSTAT_MSG_TYPE_REM_SRC;
+       remreq->srcref = sref;
+
+       /* Send the remove source request */
+       result = send(fd, remreq, sizeof(*remreq), 0);
+       if (result != sizeof(*remreq)) {
+               if (result == -1)
+                       perror("send(NSTAT_REM_SRC_REQ)");
+               else
+                       fprintf(stderr, "%s: could only sent %ld out of %lu\n",
+                               __func__, result, sizeof(*remreq));
+               return -1;
+       }
+
+       /* Receive the response */
+       remrsp = (nstat_msg_src_removed *)buffer;
+       result = recv(fd, remrsp, sizeof(buffer), 0);
+       if (result < sizeof(*remrsp)) {
+               if (result == -1)
+                       perror("recv(NSTAT_REM_SRC_RSP)");
+               else
+                       fprintf(stderr, "%s: recv too small, received %ld, "
+                               "expected %lu\n", __func__, result,
+                               sizeof(*remrsp));
+               return -1;
+       }
+
+       if (remrsp->hdr.type != NSTAT_MSG_TYPE_SRC_REMOVED) {
+               fprintf(stderr, "%s: received wrong message type, received %u "
+                       "expected %u\n", __func__, remrsp->hdr.type,
+                       NSTAT_MSG_TYPE_SRC_REMOVED);
+               return -1;
+       }
+
+       if (remrsp->srcref != sref) {
+               fprintf(stderr, "%s: received invalid srcref, received %llu "
+                       "expected %llu\n", __func__, remrsp->srcref, sref);
+       }
+       return 0;
+}
+
+static int
+get_src_decsription(int fd, nstat_src_ref_t srcref,
+                       struct nstat_ifnet_descriptor *ifdesc)
+{
+       nstat_msg_get_src_description *dreq;
+       nstat_msg_src_description *drsp;
+       char buffer[sizeof(*drsp) + sizeof(*ifdesc)];
+       ssize_t result;
+       const u_int32_t descsize =
+               offsetof(struct nstat_msg_src_description, data) +
+               sizeof(nstat_ifnet_descriptor);
+
+       dreq = (nstat_msg_get_src_description *)buffer;
+       bzero(dreq, sizeof(*dreq));
+       dreq->hdr.type = NSTAT_MSG_TYPE_GET_SRC_DESC;
+       dreq->srcref = srcref;
+       result = send(fd, dreq, sizeof(*dreq), 0);
+       if (result != sizeof(*dreq))
+       {
+               if (result == -1)
+                       perror("send(NSTAT_GET_SRC_DESC_REQ)");
+               else
+                       fprintf(stderr, "%s: sent %ld out of %lu\n",
+                               __func__, result, sizeof(*dreq));
+               return -1;
+       }
+
+       /* Receive the source description response */
+       drsp = (nstat_msg_src_description *)buffer;
+       result = recv(fd, drsp, sizeof(buffer), 0);
+       if (result < descsize)
+       {
+               if (result == -1)
+                       perror("recv(NSTAT_GET_SRC_DESC_RSP");
+               else
+                       fprintf(stderr, "%s: recv too small, received %ld, "
+                               "expected %u\n", __func__, result, descsize);
+               return -1;
+       }
+
+       if (drsp->hdr.type != NSTAT_MSG_TYPE_SRC_DESC)
+       {
+               fprintf(stderr, "%s: received wrong message type, received %u "
+                       "expected %u\n", __func__, drsp->hdr.type,
+                       NSTAT_MSG_TYPE_SRC_DESC);
+               return -1;
+       }
+
+       if (drsp->srcref != srcref)
+       {
+               fprintf(stderr, "%s: received message for wrong source, "
+                       "received 0x%llx expected 0x%llx\n",
+                       __func__, drsp->srcref, srcref);
+               return -1;
+       }
+
+       bcopy(drsp->data, ifdesc, sizeof(*ifdesc));
+       return 0;
+}
+
+static void
+print_wifi_status(nstat_ifnet_desc_wifi_status *status)
+{
+       int tmp;
+#define val(x, f)      \
+       ((status->valid_bitmask & NSTAT_IFNET_DESC_WIFI_ ## f ## _VALID) ?\
+        status->x : -1)
+#define parg(n, un) #n, val(n, un)
+#define pretxtl(n, un) \
+       (((tmp = val(n, un)) == -1) ? "(not valid)" : \
+       ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_NONE) ? "(none)" : \
+       ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_LOW) ? "(low)" : \
+       ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_MEDIUM) ? "(medium)" : \
+       ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_HIGH) ? "(high)" : \
+       "(?)")))))
+
+       printf("\nwifi status:\n");
+       printf(
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t\t%d%s\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t\t%d\n",
+           parg(link_quality_metric, LINK_QUALITY_METRIC),
+           parg(ul_effective_bandwidth, UL_EFFECTIVE_BANDWIDTH),
+           parg(ul_max_bandwidth, UL_MAX_BANDWIDTH),
+           parg(ul_min_latency, UL_MIN_LATENCY),
+           parg(ul_effective_latency, UL_EFFECTIVE_LATENCY),
+           parg(ul_max_latency, UL_MAX_LATENCY),
+           parg(ul_retxt_level, UL_RETXT_LEVEL),
+           pretxtl(ul_retxt_level, UL_RETXT_LEVEL),
+           parg(ul_bytes_lost, UL_BYTES_LOST),
+           parg(ul_error_rate, UL_ERROR_RATE),
+           parg(dl_effective_bandwidth, DL_EFFECTIVE_BANDWIDTH),
+           parg(dl_max_bandwidth, DL_MAX_BANDWIDTH),
+           parg(dl_min_latency, DL_MIN_LATENCY),
+           parg(dl_effective_latency, DL_EFFECTIVE_LATENCY),
+           parg(dl_max_latency, DL_MAX_LATENCY),
+           parg(dl_error_rate, DL_ERROR_RATE),
+           parg(config_frequency, CONFIG_FREQUENCY),
+           parg(config_multicast_rate, CONFIG_MULTICAST_RATE),
+           parg(scan_count, CONFIG_SCAN_COUNT),
+           parg(scan_duration, CONFIG_SCAN_DURATION)
+           );
+#undef pretxtl
+#undef parg
+#undef val
+}
+
+static void
+print_cellular_status(nstat_ifnet_desc_cellular_status *status)
+{
+       int tmp, tmp_mss;
+#define val(x, f)      \
+       ((status->valid_bitmask & NSTAT_IFNET_DESC_CELL_ ## f ## _VALID) ?\
+        status->x : -1)
+#define parg(n, un) #n, val(n, un)
+#define pretxtl(n, un) \
+       (((tmp = val(n, un)) == -1) ? "(not valid)" : \
+       ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_NONE) ? "(none)" : \
+       ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_LOW) ? "(low)" : \
+       ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_MEDIUM) ? "(medium)" : \
+       ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_HIGH) ? "(high)" : \
+       "(?)")))))
+#define pretxtm(n, un) \
+       (((tmp_mss = val(n,un)) == -1) ? "(not valid)" : \
+       ((tmp_mss == NSTAT_IFNET_DESC_MSS_RECOMMENDED_NONE) ? "(none)" : \
+       ((tmp_mss == NSTAT_IFNET_DESC_MSS_RECOMMENDED_MEDIUM) ? "(medium)" : \
+       ((tmp_mss == NSTAT_IFNET_DESC_MSS_RECOMMENDED_LOW) ? "(low)" : \
+       "(?)"))))
+
+       printf("\ncellular status:\n");
+       printf(
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t\t%d%s\n"
+           "\t%s:\t\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d\n"
+           "\t%s:\t%d %s\n",
+           parg(link_quality_metric, LINK_QUALITY_METRIC),
+           parg(ul_effective_bandwidth, UL_EFFECTIVE_BANDWIDTH),
+           parg(ul_max_bandwidth, UL_MAX_BANDWIDTH),
+           parg(ul_min_latency, UL_MIN_LATENCY),
+           parg(ul_effective_latency, UL_EFFECTIVE_LATENCY),
+           parg(ul_max_latency, UL_MAX_LATENCY),
+           parg(ul_retxt_level, UL_RETXT_LEVEL),
+           pretxtl(ul_retxt_level, UL_RETXT_LEVEL),
+           parg(ul_bytes_lost, UL_BYTES_LOST),
+           parg(ul_min_queue_size, UL_MIN_QUEUE_SIZE),
+           parg(ul_avg_queue_size, UL_AVG_QUEUE_SIZE),
+           parg(ul_max_queue_size, UL_MAX_QUEUE_SIZE),
+           parg(dl_effective_bandwidth, DL_EFFECTIVE_BANDWIDTH),
+           parg(dl_max_bandwidth, DL_MAX_BANDWIDTH),
+           parg(config_inactivity_time, CONFIG_INACTIVITY_TIME),
+           parg(config_backoff_time, CONFIG_BACKOFF_TIME),
+           parg(mss_recommended, MSS_RECOMMENDED),
+           pretxtm(mss_recommended, MSS_RECOMMENDED)
+           );
+#undef pretxtl
+#undef parg
+#undef val
+}
+
+static int
+get_interface_state(int fd, const char *ifname, struct ifreq *ifr)
+{
+       bzero(ifr, sizeof(*ifr));
+       snprintf(ifr->ifr_name, sizeof(ifr->ifr_name), "%s", ifname);
+
+       if (ioctl(fd, SIOCGIFINTERFACESTATE, ifr) == -1) {
+               perror("ioctl(CTLIOCGINFO)");
+               return -1;
+       }
+       return 0;
+}
+
+static void
+print_interface_state(struct ifreq *ifr)
+{
+       int lqm, rrc, avail;
+
+       printf("\ninterface state:\n");
+
+       if (ifr->ifr_interface_state.valid_bitmask &
+           IF_INTERFACE_STATE_LQM_STATE_VALID) {
+               printf("\tlqm: ");
+               lqm = ifr->ifr_interface_state.lqm_state;
+               if (lqm == IFNET_LQM_THRESH_GOOD)
+                       printf("\"good\"");
+               else if (lqm == IFNET_LQM_THRESH_POOR)
+                       printf("\"poor\"");
+               else if (lqm == IFNET_LQM_THRESH_BAD)
+                       printf("\"bad\"");
+               else if (lqm == IFNET_LQM_THRESH_UNKNOWN)
+                       printf("\"unknown\"");
+               else if (lqm == IFNET_LQM_THRESH_OFF)
+                       printf("\"off\"");
+               else
+                       printf("invalid(%d)", lqm);
+       }
+
+       if (ifr->ifr_interface_state.valid_bitmask &
+           IF_INTERFACE_STATE_RRC_STATE_VALID) {
+               printf("\trrc: ");
+               rrc = ifr->ifr_interface_state.rrc_state;
+               if (rrc == IF_INTERFACE_STATE_RRC_STATE_CONNECTED)
+                       printf("\"connected\"");
+               else if (rrc == IF_INTERFACE_STATE_RRC_STATE_IDLE)
+                       printf("\"idle\"");
+               else
+                       printf("\"invalid(%d)\"", rrc);
+       }
+
+       if (ifr->ifr_interface_state.valid_bitmask &
+           IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID) {
+               printf("\tavailability: ");
+               avail = ifr->ifr_interface_state.interface_availability;
+               if (avail == IF_INTERFACE_STATE_INTERFACE_AVAILABLE)
+                       printf("\"true\"");
+               else if (rrc == IF_INTERFACE_STATE_INTERFACE_UNAVAILABLE)
+                       printf("\"false\"");
+               else
+                       printf("\"invalid(%d)\"", avail);
+       }
+}
+
+void
+print_link_status(const char *ifname)
+{
+       unsigned int ifindex;
+       struct itimerval timer_interval;
+       sigset_t sigset, oldsigset;
+       struct nstat_ifnet_descriptor ifdesc;
+       nstat_ifnet_add_param ifparam;
+       nstat_src_ref_t sref = 0;
+       struct ifreq ifr;
+       int ctl_fd;
+
+       ifindex = if_nametoindex(ifname);
+       if (ifindex == 0) {
+               fprintf(stderr, "Invalid interface name\n");
+               return;
+       }
+
+       if ((ctl_fd = create_control_socket(NET_STAT_CONTROL_NAME)) < 0)
+               return;
+
+       ifparam.ifindex = ifindex;
+       ifparam.threshold = UINT64_MAX;
+       if (add_nstat_src(ctl_fd, &ifparam, &sref))
+               goto done;
+loop:
+       if (interval > 0) {
+               /* create a timer that fires repeatedly every interval
+                * seconds */
+               timer_interval.it_value.tv_sec = interval;
+               timer_interval.it_value.tv_usec = 0;
+               timer_interval.it_interval.tv_sec = interval;
+               timer_interval.it_interval.tv_usec = 0;
+               (void) signal(SIGALRM, catchalarm);
+               signalled = NO;
+               (void) setitimer(ITIMER_REAL, &timer_interval, NULL);
+       }
+
+       /* get interface state */
+       if (get_interface_state(ctl_fd, ifname, &ifr))
+               goto done;
+
+       /* get ntstat interface description */
+       if (get_src_decsription(ctl_fd, sref, &ifdesc))
+               goto done;
+
+       /* print time */
+       printf("\n%s: ", ifname);
+       print_time();
+
+       /* print interface state */
+       print_interface_state(&ifr);
+
+       /* print ntsat interface link status */
+       if (ifdesc.link_status.link_status_type ==
+           NSTAT_IFNET_DESC_LINK_STATUS_TYPE_CELLULAR)
+               print_cellular_status(&ifdesc.link_status.u.cellular);
+       else if (ifdesc.link_status.link_status_type ==
+                NSTAT_IFNET_DESC_LINK_STATUS_TYPE_WIFI)
+               print_wifi_status(&ifdesc.link_status.u.wifi);
+
        fflush(stdout);
 
        if (interval > 0) {
@@ -2129,4 +2252,8 @@ loop:
                signalled = NO;
                goto loop;
        }
+done:
+       if (sref)
+               rem_nstat_src(ctl_fd, sref);
+       close(ctl_fd);
 }