]> git.saurik.com Git - apple/network_cmds.git/blobdiff - netstat.tproj/if.c
network_cmds-543.tar.gz
[apple/network_cmds.git] / netstat.tproj / if.c
index 881e8aedb4d8b5fb1c80e41c1bcd12330141519a..5d82d82ef91e74ecca126d9dbf009a8cb67644ae 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2008-2015 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>
 #include <net/if_dl.h>
 #include <net/if_types.h>
 #include <net/if_mib.h>
+#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>
 
 #include <netinet/in.h>
 #include <netinet/in_var.h>
@@ -89,7 +88,10 @@ 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 "netstat.h"
 
@@ -104,6 +106,39 @@ static const char rcsid[] =
 
 static void sidewaysintpr ();
 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
+
+struct queue_stats {
+       int                      avgn;
+       double                   avg_bytes;
+       double                   avg_packets;
+       u_int64_t                prev_bytes;
+       u_int64_t                prev_packets;
+       unsigned int             printed;
+       unsigned int             handle;
+};
+
+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];
 
 #ifdef INET6
 char *netname6 (struct sockaddr_in6 *, struct sockaddr *);
@@ -120,10 +155,10 @@ show_stat(const char *fmt, int width, u_int64_t value, short showvalue)
 
        /* Construct the format string */
        if (showvalue) {
-               sprintf(newfmt, "%%%d%s", width, fmt);
+               snprintf(newfmt, sizeof(newfmt), "%%%d%s", width, fmt);
                printf(newfmt, value);
        } else {
-               sprintf(newfmt, "%%%ds", width);
+               snprintf(newfmt, sizeof(newfmt), "%%%ds", width);
                printf(newfmt, "-");
        }
 }
@@ -184,6 +219,7 @@ multipr(int family, char *buf, char *lim)
                                memcpy(&sin6, sa, sizeof(struct sockaddr_in6));
 
                                if (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
+                                       IN6_IS_ADDR_MC_NODELOCAL(&sin6.sin6_addr) ||
                                        IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) {
                                        sin6.sin6_scope_id = ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
                                        sin6.sin6_addr.s6_addr[2] = 0;
@@ -228,28 +264,30 @@ intpr(void (*pfunc)(char *))
        u_int64_t oerrors = 0;
        u_int64_t ierrors = 0;
        u_int64_t collisions = 0;
+       u_int64_t fpackets = 0;
+       u_int64_t fbytes = 0;
        uint32_t mtu = 0;
-       short timer = 0;
+       int timer = 0;
        int drops = 0;
        struct sockaddr *sa = NULL;
        char name[32];
        short network_layer;
        short link_layer;
-    int mib[6];
-    char *buf = NULL, *lim, *next;
+       int mib[6];
+       char *buf = NULL, *lim, *next;
        size_t len;
        struct if_msghdr *ifm;
        struct sockaddr *rti_info[RTAX_MAX];
        unsigned int ifindex = 0;
-       
+
        if (interval) {
                sidewaysintpr();
                return;
        }
-       
+
        if (interface != 0)
                ifindex = if_nametoindex(interface);
-       
+
        mib[0]  = CTL_NET;                      // networking subsystem
        mib[1]  = PF_ROUTE;                     // type of information
        mib[2]  = 0;                            // protocol (IPPROTO_xxx)
@@ -267,34 +305,64 @@ intpr(void (*pfunc)(char *))
                        free(buf);
                return;
        }
+
        if (!pfunc) {
                printf("%-5.5s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
                       "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
-               if (bflag)
+               if (prioflag >= 0)
+                       printf(" %8.8s %8.8s", "Itcpkts", "Ipvpkts");
+               if (bflag) {
                        printf(" %10.10s","Ibytes");
+                       if (prioflag >= 0)
+                               printf(" %8.8s %8.8s", "Itcbytes", "Ipvbytes");
+               }
                printf(" %8.8s %5.5s", "Opkts", "Oerrs");
-               if (bflag)
+               if (prioflag >= 0)
+                       printf(" %8.8s %8.8s", "Otcpkts", "Opvpkts");
+               if (bflag) {
                        printf(" %10.10s","Obytes");
+                       if (prioflag >= 0)
+                               printf(" %8.8s %8.8s", "Otcbytes", "Opvbytes");
+               }
                printf(" %5s", "Coll");
                if (tflag)
                        printf(" %s", "Time");
                if (dflag)
                        printf(" %s", "Drop");
+               if (Fflag) {
+                       printf(" %8.8s", "Fpkts");
+                       if (bflag)
+                               printf(" %10.10s", "Fbytes");
+               }
                putchar('\n');
        }
-    lim = buf + len;
-    for (next = buf; next < lim; ) {
+       lim = buf + len;
+       for (next = buf; next < lim; ) {
                char *cp;
                int n, m;
-               
+               struct ifmibdata_supplemental ifmsupp;
+               u_int64_t       ift_itcp = 0;   /* input tc packets */
+               u_int64_t       ift_itcb = 0;   /* input tc bytes */
+               u_int64_t       ift_otcp = 0;   /* output tc packets */
+               u_int64_t       ift_otcb = 0;   /* output tc bytes */
+               u_int64_t       ift_ipvp = 0;   /* input priv tc packets */
+               u_int64_t       ift_ipvb = 0;   /* input priv tc bytes */
+               u_int64_t       ift_opvp = 0;   /* output priv tc packets */
+               u_int64_t       ift_opvb = 0;   /* output priv tc bytes */
+
+               bzero(&ifmsupp, sizeof(struct ifmibdata_supplemental));
+
                network_layer = 0;
                link_layer = 0;
-        ifm = (struct if_msghdr *)next;
+               ifm = (struct if_msghdr *)next;
                next += ifm->ifm_msglen;
 
-        if (ifm->ifm_type == RTM_IFINFO2) {
+               if (ifm->ifm_type == RTM_IFINFO2) {
                        struct if_msghdr2 *if2m = (struct if_msghdr2 *)ifm;
-            struct sockaddr_dl *sdl = (struct sockaddr_dl *)(if2m + 1);
+                       struct sockaddr_dl *sdl =
+                           (struct sockaddr_dl *)(if2m + 1);
+                       int mibname[6];
+                       size_t miblen = sizeof(struct ifmibdata_supplemental);
 
                        strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
                        name[sdl->sdl_nlen] = 0;
@@ -326,14 +394,72 @@ intpr(void (*pfunc)(char *))
                        drops = if2m->ifm_snd_drops;
                        mtu = if2m->ifm_data.ifi_mtu;
 
-            get_rti_info(if2m->ifm_addrs, (struct sockaddr*)(if2m + 1), rti_info);
+                       /* Common OID prefix */
+                       mibname[0] = CTL_NET;
+                       mibname[1] = PF_LINK;
+                       mibname[2] = NETLINK_GENERIC;
+                       mibname[3] = IFMIB_IFDATA;
+                       mibname[4] = if2m->ifm_index;
+                       mibname[5] = IFDATA_SUPPLEMENTAL;
+                       if (sysctl(mibname, 6, &ifmsupp, &miblen, NULL, 0) == -1)
+                               err(1, "sysctl IFDATA_SUPPLEMENTAL");
+
+                       fpackets = ifmsupp.ifmd_data_extended.ifi_fpackets;
+                       fbytes = ifmsupp.ifmd_data_extended.ifi_fbytes;
+
+                       if (prioflag >= 0) {
+                               switch (prioflag) {
+                               case SO_TC_BE:
+                                       ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ibepackets;
+                                       ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ibebytes;
+                                       ift_otcp = ifmsupp.ifmd_traffic_class.ifi_obepackets;
+                                       ift_otcb = ifmsupp.ifmd_traffic_class.ifi_obebytes;
+                                       break;
+                               case SO_TC_BK:
+                                       ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ibkpackets;
+                                       ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ibkbytes;
+                                       ift_otcp = ifmsupp.ifmd_traffic_class.ifi_obkpackets;
+                                       ift_otcb = ifmsupp.ifmd_traffic_class.ifi_obkbytes;
+                                       break;
+                               case SO_TC_VI:
+                                       ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ivipackets;
+                                       ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ivibytes;
+                                       ift_otcp = ifmsupp.ifmd_traffic_class.ifi_ovipackets;
+                                       ift_otcb = ifmsupp.ifmd_traffic_class.ifi_ovibytes;
+                                       break;
+                               case SO_TC_VO:
+                                       ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ivopackets;
+                                       ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ivobytes;
+                                       ift_otcp = ifmsupp.ifmd_traffic_class.ifi_ovopackets;
+                                       ift_otcb = ifmsupp.ifmd_traffic_class.ifi_ovobytes;
+                                       break;
+                               default:
+                                       ift_itcp = 0;
+                                       ift_itcb = 0;
+                                       ift_otcp = 0;
+                                       ift_otcb = 0;
+                                       ift_ipvp = 0;
+                                       ift_ipvb = 0;
+                                       ift_opvp = 0;
+                                       ift_opvb = 0;
+                                       break;
+                               }
+                               ift_ipvp = ifmsupp.ifmd_traffic_class.ifi_ipvpackets;
+                               ift_ipvb = ifmsupp.ifmd_traffic_class.ifi_ipvbytes;
+                               ift_opvp = ifmsupp.ifmd_traffic_class.ifi_opvpackets;
+                               ift_opvb = ifmsupp.ifmd_traffic_class.ifi_opvbytes;
+                       }
+
+                       get_rti_info(if2m->ifm_addrs,
+                           (struct sockaddr*)(if2m + 1), rti_info);
                        sa = rti_info[RTAX_IFP];
-        } else if (ifm->ifm_type == RTM_NEWADDR) {
-            struct ifa_msghdr  *ifam = (struct ifa_msghdr *)ifm;
-                       
+               } else if (ifm->ifm_type == RTM_NEWADDR) {
+                       struct ifa_msghdr *ifam = (struct ifa_msghdr *)ifm;
+
                        if (interface != 0 && ifam->ifam_index != ifindex)
                                continue;
-            get_rti_info(ifam->ifam_addrs, (struct sockaddr*)(ifam + 1), rti_info);
+                       get_rti_info(ifam->ifam_addrs,
+                           (struct sockaddr*)(ifam + 1), rti_info);
                        sa = rti_info[RTAX_IFA];
                } else {
                        continue;
@@ -351,16 +477,18 @@ intpr(void (*pfunc)(char *))
                                break;
 
                        case AF_INET: {
-                               struct sockaddr_in *sin = (struct sockaddr_in *)sa;
+                               struct sockaddr_in *sin =
+                                   (struct sockaddr_in *)sa;
                                struct sockaddr_in mask;
-                               
+
                                mask.sin_addr.s_addr = 0;
-                               memcpy(&mask,
-                                      rti_info[RTAX_NETMASK],
-                                      ((struct sockaddr_in *)rti_info[RTAX_NETMASK])->sin_len);
-                               
+                               memcpy(&mask, rti_info[RTAX_NETMASK],
+                                   ((struct sockaddr_in *)
+                                   rti_info[RTAX_NETMASK])->sin_len);
+
                                printf("%-13.13s ",
-                                      netname(sin->sin_addr.s_addr & mask.sin_addr.s_addr,
+                                   netname(sin->sin_addr.s_addr &
+                                   mask.sin_addr.s_addr,
                                    ntohl(mask.sin_addr.s_addr)));
 
                                printf("%-15.15s ",
@@ -371,16 +499,15 @@ intpr(void (*pfunc)(char *))
                        }
 #ifdef INET6
                        case AF_INET6: {
-                               struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
-                               struct sockaddr *mask = (struct sockaddr *)rti_info[RTAX_NETMASK];
+                               struct sockaddr_in6 *sin6 =
+                                   (struct sockaddr_in6 *)sa;
+                               struct sockaddr *mask =
+                                   (struct sockaddr *)rti_info[RTAX_NETMASK];
 
-                               printf("%-11.11s ",
-                                      netname6(sin6,
-                                               mask));
-                               printf("%-17.17s ",
-                                   (char *)inet_ntop(AF_INET6,
-                                       &sin6->sin6_addr,
-                                       ntop_buf, sizeof(ntop_buf)));
+                               printf("%-11.11s ", netname6(sin6, mask));
+                               printf("%-17.17s ", (char *)inet_ntop(AF_INET6,
+                                   &sin6->sin6_addr, ntop_buf,
+                                   sizeof(ntop_buf)));
 
                                network_layer = 1;
                                break;
@@ -388,11 +515,12 @@ intpr(void (*pfunc)(char *))
 #endif /*INET6*/
                        case AF_LINK: {
                                struct sockaddr_dl *sdl =
-                                       (struct sockaddr_dl *)sa;
+                                   (struct sockaddr_dl *)sa;
                                char linknum[10];
                                cp = (char *)LLADDR(sdl);
                                n = sdl->sdl_alen;
-                               sprintf(linknum, "<Link#%d>", sdl->sdl_index);
+                               snprintf(linknum, sizeof(linknum),
+                                   "<Link#%d>", sdl->sdl_index);
                                m = printf("%-11.11s ", linknum);
                                goto hexprint;
                        }
@@ -414,55 +542,95 @@ intpr(void (*pfunc)(char *))
                                link_layer = 1;
                                break;
                        }
-                       }
+               }
 
                show_stat("llu", 8, ipackets, link_layer|network_layer);
                printf(" ");
                show_stat("llu", 5, ierrors, link_layer);
                printf(" ");
+               if (prioflag >= 0) {
+                       show_stat("llu", 8, ift_itcp, link_layer|network_layer);
+                       printf(" ");
+                       show_stat("llu", 8, ift_ipvp, link_layer|network_layer);
+                       printf(" ");
+               }
                if (bflag) {
                        show_stat("llu", 10, ibytes, link_layer|network_layer);
                        printf(" ");
+                       if (prioflag >= 0) {
+                               show_stat("llu", 8, ift_itcb, link_layer|network_layer);
+                               printf(" ");
+                               show_stat("llu", 8, ift_ipvb, link_layer|network_layer);
+                               printf(" ");
+                       }
                }
                show_stat("llu", 8, opackets, link_layer|network_layer);
                printf(" ");
                show_stat("llu", 5, oerrors, link_layer);
                printf(" ");
+               if (prioflag >= 0) {
+                       show_stat("llu", 8, ift_otcp, link_layer|network_layer);
+                       printf(" ");
+                       show_stat("llu", 8, ift_opvp, link_layer|network_layer);
+                       printf(" ");
+               }
                if (bflag) {
                        show_stat("llu", 10, obytes, link_layer|network_layer);
                        printf(" ");
+                       if (prioflag >= 0) {
+                               show_stat("llu", 8, ift_otcb, link_layer|network_layer);
+                               printf(" ");
+                               show_stat("llu", 8, ift_opvb, link_layer|network_layer);
+                               printf(" ");
+                       }
                }
                show_stat("llu", 5, collisions, link_layer);
                if (tflag) {
                        printf(" ");
-                       show_stat("ll", 3, timer, link_layer);
+                       show_stat("d", 3, timer, link_layer);
                }
                if (dflag) {
                        printf(" ");
-                       show_stat("ll", 3, drops, link_layer);
+                       show_stat("d", 3, drops, link_layer);
+               }
+               if (Fflag) {
+                       printf(" ");
+                       show_stat("llu", 8, fpackets, link_layer|network_layer);
+                       if (bflag) {
+                               printf(" ");
+                               show_stat("llu", 10, fbytes,
+                                   link_layer|network_layer);
+                       }
                }
                putchar('\n');
 
-               if (aflag) 
+               if (aflag)
                        multipr(sa->sa_family, next, lim);
        }
+       free(buf);
 }
 
 struct iftot {
        SLIST_ENTRY(iftot) chain;
        char            ift_name[16];   /* interface name */
-       u_int64_t       ift_ip;                 /* input packets */
-       u_int64_t       ift_ie;                 /* input errors */
-       u_int64_t       ift_op;                 /* output packets */
-       u_int64_t       ift_oe;                 /* output errors */
-       u_int64_t       ift_co;                 /* collisions */
-       u_int64_t       ift_dr;                 /* drops */
-       u_int64_t       ift_ib;                 /* input bytes */
-       u_int64_t       ift_ob;                 /* output bytes */
-       u_int64_t       ift_itcp;               /* input tc packets */
-       u_int64_t       ift_itcb;               /* input tc bytes */
-       u_int64_t       ift_otcp;               /* output tc packets */
-       u_int64_t       ift_otcb;               /* output tc bytes */
+       u_int64_t       ift_ip;         /* input packets */
+       u_int64_t       ift_ie;         /* input errors */
+       u_int64_t       ift_op;         /* output packets */
+       u_int64_t       ift_oe;         /* output errors */
+       u_int64_t       ift_co;         /* collisions */
+       u_int64_t       ift_dr;         /* drops */
+       u_int64_t       ift_ib;         /* input bytes */
+       u_int64_t       ift_ob;         /* output bytes */
+       u_int64_t       ift_itcp;       /* input tc packets */
+       u_int64_t       ift_itcb;       /* input tc bytes */
+       u_int64_t       ift_otcp;       /* output tc packets */
+       u_int64_t       ift_otcb;       /* output tc bytes */
+       u_int64_t       ift_ipvp;       /* input priv tc packets */
+       u_int64_t       ift_ipvb;       /* input priv tc bytes */
+       u_int64_t       ift_opvp;       /* output priv tc packets */
+       u_int64_t       ift_opvb;       /* output priv tc bytes */
+       u_int64_t       ift_fp;         /* forwarded packets */
+       u_int64_t       ift_fb;         /* forwarded bytes */
 };
 
 u_char signalled;                      /* set if alarm goes off "early" */
@@ -508,17 +676,19 @@ sidewaysintpr()
        name[5] = IFDATA_GENERAL;
        if (sysctl(name, 6, ifmdall, &len, (void *)0, 0) == -1)
                err(1, "sysctl IFMIB_IFALLDATA");
-       
+
        interesting = NULL;
        interesting_row = 0;
        for (i = 0; i < ifcount; i++) {
                struct ifmibdata *ifmd = ifmdall + i;
-       
+
                if (interface && strcmp(ifmd->ifmd_name, interface) == 0) {
-                       if ((interesting = calloc(ifcount, sizeof(struct iftot))) == NULL)
+                       if ((interesting = calloc(ifcount,
+                           sizeof(struct iftot))) == NULL)
                                err(1, "malloc failed");
-                       interesting_row = i + 1;
-                       snprintf(interesting->ift_name, 16, "(%s)", ifmd->ifmd_name);;
+                       interesting_row = if_nametoindex(interface);
+                       snprintf(interesting->ift_name, 16, "(%s)",
+                           ifmd->ifmd_name);;
                }
        }
        if ((total = calloc(1, sizeof(struct iftot))) == NULL)
@@ -537,31 +707,43 @@ sidewaysintpr()
        (void)setitimer(ITIMER_REAL, &timer_interval, NULL);
        first = 1;
 banner:
-       if (prioflag)
-               printf("%37s %14s %16s", "input",
+       if (vflag > 0)
+               printf("%9s", " ");
+
+       if (prioflag >= 0)
+               printf("%39s %39s %36s", "input",
                    interesting ? interesting->ift_name : "(Total)", "output");
        else
                printf("%17s %14s %16s", "input",
                    interesting ? interesting->ift_name : "(Total)", "output");
        putchar('\n');
-       printf("%10s %5s %10s ", 
-           "packets", "errs", "bytes");
-       if (prioflag)
-               printf(" %10s %10s", "tcpkts", "tcbytes");
-       printf("%10s %5s %10s %5s",
-           "packets", "errs", "bytes", "colls");
+
+       if (vflag > 0)
+               printf("%9s", " ");
+
+       printf("%10s %5s %10s ", "packets", "errs", "bytes");
+       if (prioflag >= 0)
+               printf(" %10s %10s %10s %10s",
+                   "tcpkts", "tcbytes", "pvpkts", "pvbytes");
+       printf("%10s %5s %10s %5s", "packets", "errs", "bytes", "colls");
        if (dflag)
                printf(" %5.5s", "drops");
-       if (prioflag)
-               printf(" %10s %10s", "tcpkts", "tcbytes");
+       if (prioflag >= 0)
+               printf(" %10s %10s %10s %10s",
+                   "tcpkts", "tcbytes", "pvpkts", "pvbytes");
+       if (Fflag)
+               printf(" %10s %10s", "fpackets", "fbytes");
        putchar('\n');
        fflush(stdout);
        line = 0;
 loop:
+       if (vflag && !first)
+               print_time();
+
        if (interesting != NULL) {
                struct ifmibdata ifmd;
                struct ifmibdata_supplemental ifmsupp;
-               
+
                len = sizeof(struct ifmibdata);
                name[3] = IFMIB_IFDATA;
                name[4] = interesting_row;
@@ -569,63 +751,111 @@ loop:
                if (sysctl(name, 6, &ifmd, &len, (void *)0, 0) == -1)
                        err(1, "sysctl IFDATA_GENERAL %d", interesting_row);
 
-               if (prioflag) {
-                       len = sizeof(struct ifmibdata_supplemental);
-                       name[3] = IFMIB_IFDATA;
-                       name[4] = interesting_row;
-                       name[5] = IFDATA_SUPPLEMENTAL;
-                       if (sysctl(name, 6, &ifmsupp, &len, (void *)0, 0) == -1)
-                               err(1, "sysctl IFDATA_SUPPLEMENTAL %d", interesting_row);
-               }
+               len = sizeof(struct ifmibdata_supplemental);
+               name[3] = IFMIB_IFDATA;
+               name[4] = interesting_row;
+               name[5] = IFDATA_SUPPLEMENTAL;
+               if (sysctl(name, 6, &ifmsupp, &len, (void *)0, 0) == -1)
+                       err(1, "sysctl IFDATA_SUPPLEMENTAL %d",
+                           interesting_row);
+
                if (!first) {
                        printf("%10llu %5llu %10llu ",
-                               ifmd.ifmd_data.ifi_ipackets - interesting->ift_ip,
-                               ifmd.ifmd_data.ifi_ierrors - interesting->ift_ie,
-                               ifmd.ifmd_data.ifi_ibytes - interesting->ift_ib);
+                           ifmd.ifmd_data.ifi_ipackets - interesting->ift_ip,
+                           ifmd.ifmd_data.ifi_ierrors - interesting->ift_ie,
+                           ifmd.ifmd_data.ifi_ibytes - interesting->ift_ib);
                        switch (prioflag) {
-                               case SO_TC_BK:
-                                       printf("%10llu %10llu ",
-                                           ifmsupp.ifmd_traffic_class.ifi_ibkpackets - interesting->ift_itcp,
-                                           ifmsupp.ifmd_traffic_class.ifi_ibkbytes - interesting->ift_itcb);
-                                       break;
-                               case SO_TC_VI:
-                                       printf("%10llu %10llu ",
-                                           ifmsupp.ifmd_traffic_class.ifi_ivipackets - interesting->ift_itcp,
-                                           ifmsupp.ifmd_traffic_class.ifi_ivibytes - interesting->ift_itcb);
-                                       break;
-                               case SO_TC_VO:
-                                       printf("%10llu %10llu ",
-                                           ifmsupp.ifmd_traffic_class.ifi_ivopackets - interesting->ift_itcp,
-                                           ifmsupp.ifmd_traffic_class.ifi_ivobytes - interesting->ift_itcb);
-                                       break;
-                               default:
-                                       break;
+                       case SO_TC_BE:
+                               printf("%10llu %10llu ",
+                                   ifmsupp.ifmd_traffic_class.ifi_ibepackets -
+                                   interesting->ift_itcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ibebytes -
+                                   interesting->ift_itcb);
+                               break;
+                       case SO_TC_BK:
+                               printf("%10llu %10llu ",
+                                   ifmsupp.ifmd_traffic_class.ifi_ibkpackets -
+                                   interesting->ift_itcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ibkbytes -
+                                   interesting->ift_itcb);
+                               break;
+                       case SO_TC_VI:
+                               printf("%10llu %10llu ",
+                                   ifmsupp.ifmd_traffic_class.ifi_ivipackets -
+                                   interesting->ift_itcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ivibytes -
+                                   interesting->ift_itcb);
+                               break;
+                       case SO_TC_VO:
+                               printf("%10llu %10llu ",
+                                   ifmsupp.ifmd_traffic_class.ifi_ivopackets -
+                                   interesting->ift_itcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ivobytes -
+                                   interesting->ift_itcb);
+                               break;
+                       default:
+                               break;
+                       }
+                       if (prioflag >= 0) {
+                               printf("%10llu %10llu ",
+                                   ifmsupp.ifmd_traffic_class.ifi_ipvpackets -
+                                   interesting->ift_ipvp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ipvbytes -
+                                   interesting->ift_ipvb);
                        }
                        printf("%10llu %5llu %10llu %5llu",
-                               ifmd.ifmd_data.ifi_opackets - interesting->ift_op,
-                               ifmd.ifmd_data.ifi_oerrors - interesting->ift_oe,
-                               ifmd.ifmd_data.ifi_obytes - interesting->ift_ob,
-                               ifmd.ifmd_data.ifi_collisions - interesting->ift_co);
+                           ifmd.ifmd_data.ifi_opackets - interesting->ift_op,
+                           ifmd.ifmd_data.ifi_oerrors - interesting->ift_oe,
+                           ifmd.ifmd_data.ifi_obytes - interesting->ift_ob,
+                           ifmd.ifmd_data.ifi_collisions - interesting->ift_co);
                        if (dflag)
-                               printf(" %5llu", ifmd.ifmd_snd_drops - interesting->ift_dr);
+                               printf(" %5llu",
+                                   ifmd.ifmd_snd_drops - interesting->ift_dr);
                        switch (prioflag) {
-                               case SO_TC_BK:
-                                       printf(" %10llu %10llu",
-                                           ifmsupp.ifmd_traffic_class.ifi_obkpackets - interesting->ift_otcp,
-                                           ifmsupp.ifmd_traffic_class.ifi_obkbytes - interesting->ift_otcb);
-                                       break;
-                               case SO_TC_VI:
-                                       printf(" %10llu %10llu",
-                                           ifmsupp.ifmd_traffic_class.ifi_ovipackets - interesting->ift_otcp,
-                                           ifmsupp.ifmd_traffic_class.ifi_ovibytes - interesting->ift_otcb);
-                                       break;
-                               case SO_TC_VO:
-                                       printf(" %10llu %10llu",
-                                           ifmsupp.ifmd_traffic_class.ifi_ovopackets - interesting->ift_otcp,
-                                           ifmsupp.ifmd_traffic_class.ifi_ovobytes - interesting->ift_otcb);
-                                       break;
-                               default:
-                                       break;
+                       case SO_TC_BE:
+                               printf(" %10llu %10llu",
+                                   ifmsupp.ifmd_traffic_class.ifi_obepackets -
+                                   interesting->ift_otcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_obebytes -
+                                   interesting->ift_otcb);
+                               break;
+                       case SO_TC_BK:
+                               printf(" %10llu %10llu",
+                                   ifmsupp.ifmd_traffic_class.ifi_obkpackets -
+                                   interesting->ift_otcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_obkbytes -
+                                   interesting->ift_otcb);
+                               break;
+                       case SO_TC_VI:
+                               printf(" %10llu %10llu",
+                                   ifmsupp.ifmd_traffic_class.ifi_ovipackets -
+                                   interesting->ift_otcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ovibytes -
+                                   interesting->ift_otcb);
+                               break;
+                       case SO_TC_VO:
+                               printf(" %10llu %10llu",
+                                   ifmsupp.ifmd_traffic_class.ifi_ovopackets -
+                                   interesting->ift_otcp,
+                                   ifmsupp.ifmd_traffic_class.ifi_ovobytes -
+                                   interesting->ift_otcb);
+                               break;
+                       default:
+                               break;
+                       }
+                       if (prioflag >= 0) {
+                               printf("%10llu %10llu ",
+                                   ifmsupp.ifmd_traffic_class.ifi_opvpackets -
+                                   interesting->ift_opvp,
+                                   ifmsupp.ifmd_traffic_class.ifi_opvbytes -
+                                   interesting->ift_opvb);
+                       }
+                       if (Fflag) {
+                               printf("%10llu %10llu",
+                                   ifmsupp.ifmd_data_extended.ifi_fpackets -
+                                   interesting->ift_fp,
+                                   ifmsupp.ifmd_data_extended.ifi_fbytes -
+                                   interesting->ift_fb);
                        }
                }
                interesting->ift_ip = ifmd.ifmd_data.ifi_ipackets;
@@ -636,33 +866,68 @@ loop:
                interesting->ift_ob = ifmd.ifmd_data.ifi_obytes;
                interesting->ift_co = ifmd.ifmd_data.ifi_collisions;
                interesting->ift_dr = ifmd.ifmd_snd_drops;
+
                /* private counters */
                switch (prioflag) {
-                       case SO_TC_BK:
-                               interesting->ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ibkpackets;
-                               interesting->ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ibkbytes;
-                               interesting->ift_otcp = ifmsupp.ifmd_traffic_class.ifi_obkpackets;
-                               interesting->ift_otcb = ifmsupp.ifmd_traffic_class.ifi_obkbytes;
-                               break;
-                       case SO_TC_VI:
-                               interesting->ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ivipackets;
-                               interesting->ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ivibytes;
-                               interesting->ift_otcp = ifmsupp.ifmd_traffic_class.ifi_ovipackets;
-                               interesting->ift_otcb = ifmsupp.ifmd_traffic_class.ifi_ovibytes;
-                               break;
-                       case SO_TC_VO:
-                               interesting->ift_itcp = ifmsupp.ifmd_traffic_class.ifi_ivopackets;
-                               interesting->ift_itcb = ifmsupp.ifmd_traffic_class.ifi_ivobytes;
-                               interesting->ift_otcp = ifmsupp.ifmd_traffic_class.ifi_ovopackets;
-                               interesting->ift_otcb = ifmsupp.ifmd_traffic_class.ifi_ovobytes;
-                               break;
-                       default:
-                               break;
+               case SO_TC_BE:
+                       interesting->ift_itcp =
+                           ifmsupp.ifmd_traffic_class.ifi_ibepackets;
+                       interesting->ift_itcb =
+                           ifmsupp.ifmd_traffic_class.ifi_ibebytes;
+                       interesting->ift_otcp =
+                           ifmsupp.ifmd_traffic_class.ifi_obepackets;
+                       interesting->ift_otcb =
+                           ifmsupp.ifmd_traffic_class.ifi_obebytes;
+                       break;
+               case SO_TC_BK:
+                       interesting->ift_itcp =
+                           ifmsupp.ifmd_traffic_class.ifi_ibkpackets;
+                       interesting->ift_itcb =
+                           ifmsupp.ifmd_traffic_class.ifi_ibkbytes;
+                       interesting->ift_otcp =
+                           ifmsupp.ifmd_traffic_class.ifi_obkpackets;
+                       interesting->ift_otcb =
+                           ifmsupp.ifmd_traffic_class.ifi_obkbytes;
+                       break;
+               case SO_TC_VI:
+                       interesting->ift_itcp =
+                           ifmsupp.ifmd_traffic_class.ifi_ivipackets;
+                       interesting->ift_itcb =
+                           ifmsupp.ifmd_traffic_class.ifi_ivibytes;
+                       interesting->ift_otcp =
+                           ifmsupp.ifmd_traffic_class.ifi_ovipackets;
+                       interesting->ift_otcb =
+                           ifmsupp.ifmd_traffic_class.ifi_ovibytes;
+                       break;
+               case SO_TC_VO:
+                       interesting->ift_itcp =
+                           ifmsupp.ifmd_traffic_class.ifi_ivopackets;
+                       interesting->ift_itcb =
+                           ifmsupp.ifmd_traffic_class.ifi_ivobytes;
+                       interesting->ift_otcp =
+                           ifmsupp.ifmd_traffic_class.ifi_ovopackets;
+                       interesting->ift_otcb =
+                           ifmsupp.ifmd_traffic_class.ifi_ovobytes;
+                       break;
+               default:
+                       break;
+               }
+               if (prioflag >= 0) {
+                       interesting->ift_ipvp =
+                           ifmsupp.ifmd_traffic_class.ifi_ipvpackets;
+                       interesting->ift_ipvb =
+                           ifmsupp.ifmd_traffic_class.ifi_ipvbytes;
+                       interesting->ift_opvp =
+                           ifmsupp.ifmd_traffic_class.ifi_opvpackets;
+                       interesting->ift_opvb =
+                           ifmsupp.ifmd_traffic_class.ifi_opvbytes;
                }
+               interesting->ift_fp = ifmsupp.ifmd_data_extended.ifi_fpackets;
+               interesting->ift_fb = ifmsupp.ifmd_data_extended.ifi_fbytes;
        } else {
                unsigned int latest_ifcount;
                struct ifmibdata_supplemental *ifmsuppall = NULL;
-               
+
                len = sizeof(int);
                name[3] = IFMIB_SYSTEM;
                name[4] = IFMIB_IFCOUNT;
@@ -685,17 +950,17 @@ loop:
                name[5] = IFDATA_GENERAL;
                if (sysctl(name, 6, ifmdall, &len, (void *)0, 0) == -1)
                        err(1, "sysctl IFMIB_IFALLDATA");
-               if (prioflag) {
-                       len = ifcount * sizeof(struct ifmibdata_supplemental);
-                       ifmsuppall = malloc(len);
-                       if (ifmsuppall == NULL)
-                               err(1, "malloc ifmsuppall failed");
-                       name[3] = IFMIB_IFALLDATA;
-                       name[4] = 0;
-                       name[5] = IFDATA_SUPPLEMENTAL;
-                       if (sysctl(name, 6, ifmsuppall, &len, (void *)0, 0) == -1)
-                               err(1, "sysctl IFMIB_IFALLDATA SUPPLEMENTAL");
-               }                       
+
+               len = ifcount * sizeof(struct ifmibdata_supplemental);
+               ifmsuppall = malloc(len);
+               if (ifmsuppall == NULL)
+                       err(1, "malloc ifmsuppall failed");
+               name[3] = IFMIB_IFALLDATA;
+               name[4] = 0;
+               name[5] = IFDATA_SUPPLEMENTAL;
+               if (sysctl(name, 6, ifmsuppall, &len, (void *)0, 0) == -1)
+                       err(1, "sysctl IFMIB_IFALLDATA SUPPLEMENTAL");
+
                sum->ift_ip = 0;
                sum->ift_ie = 0;
                sum->ift_ib = 0;
@@ -708,9 +973,16 @@ loop:
                sum->ift_itcb = 0;
                sum->ift_otcp = 0;
                sum->ift_otcb = 0;
+               sum->ift_ipvp = 0;
+               sum->ift_ipvb = 0;
+               sum->ift_opvp = 0;
+               sum->ift_opvb = 0;
+               sum->ift_fp = 0;
+               sum->ift_fb = 0;
                for (i = 0; i < ifcount; i++) {
                        struct ifmibdata *ifmd = ifmdall + i;
-                       
+                       struct ifmibdata_supplemental *ifmsupp = ifmsuppall + i;
+
                        sum->ift_ip += ifmd->ifmd_data.ifi_ipackets;
                        sum->ift_ie += ifmd->ifmd_data.ifi_ierrors;
                        sum->ift_ib += ifmd->ifmd_data.ifi_ibytes;
@@ -720,41 +992,54 @@ loop:
                        sum->ift_co += ifmd->ifmd_data.ifi_collisions;
                        sum->ift_dr += ifmd->ifmd_snd_drops;
                        /* private counters */
-                       if (prioflag) {
-                               struct ifmibdata_supplemental *ifmsupp = ifmsuppall + i;
+                       if (prioflag >= 0) {
                                switch (prioflag) {
-                                       case SO_TC_BK:
-                                               sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ibkpackets;
-                                               sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ibkbytes;
-                                               sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_obkpackets;
-                                               sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_obkbytes;
-                                               break;
-                                       case SO_TC_VI:
-                                               sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ivipackets;
-                                               sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ivibytes;
-                                               sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_ovipackets;
-                                               sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_ovibytes;
-                                               break;
-                                       case SO_TC_VO:
-                                               sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ivopackets;
-                                               sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ivobytes;
-                                               sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_ovopackets;
-                                               sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_ovobytes;
-                                               break;
-                                       default:
-                                               break;
+                               case SO_TC_BE:
+                                       sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ibepackets;
+                                       sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ibebytes;
+                                       sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_obepackets;
+                                       sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_obebytes;
+                                       break;
+                               case SO_TC_BK:
+                                       sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ibkpackets;
+                                       sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ibkbytes;
+                                       sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_obkpackets;
+                                       sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_obkbytes;
+                                       break;
+                               case SO_TC_VI:
+                                       sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ivipackets;
+                                       sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ivibytes;
+                                       sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_ovipackets;
+                                       sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_ovibytes;
+                                       break;
+                               case SO_TC_VO:
+                                       sum->ift_itcp += ifmsupp->ifmd_traffic_class.ifi_ivopackets;
+                                       sum->ift_itcb += ifmsupp->ifmd_traffic_class.ifi_ivobytes;
+                                       sum->ift_otcp += ifmsupp->ifmd_traffic_class.ifi_ovopackets;
+                                       sum->ift_otcb += ifmsupp->ifmd_traffic_class.ifi_ovobytes;
+                                       break;
+                               default:
+                                       break;
                                }
+                               sum->ift_ipvp += ifmsupp->ifmd_traffic_class.ifi_ipvpackets;
+                               sum->ift_ipvb += ifmsupp->ifmd_traffic_class.ifi_ipvbytes;
+                               sum->ift_opvp += ifmsupp->ifmd_traffic_class.ifi_opvpackets;
+                               sum->ift_opvb += ifmsupp->ifmd_traffic_class.ifi_opvbytes;
                        }
+                       sum->ift_fp += ifmsupp->ifmd_data_extended.ifi_fpackets;
+                       sum->ift_fb += ifmsupp->ifmd_data_extended.ifi_fbytes;
                }
                if (!first) {
                        printf("%10llu %5llu %10llu ",
                                sum->ift_ip - total->ift_ip,
                                sum->ift_ie - total->ift_ie,
                                sum->ift_ib - total->ift_ib);
-                       if (prioflag)
-                               printf(" %10llu %10llu",
+                       if (prioflag >= 0)
+                               printf(" %10llu %10llu %10llu %10llu",
                                    sum->ift_itcp - total->ift_itcp,
-                                   sum->ift_itcb - total->ift_itcb);
+                                   sum->ift_itcb - total->ift_itcb,
+                                   sum->ift_ipvp - total->ift_ipvp,
+                                   sum->ift_ipvb - total->ift_ipvb);
                        printf("%10llu %5llu %10llu %5llu",
                                sum->ift_op - total->ift_op,
                                sum->ift_oe - total->ift_oe,
@@ -762,12 +1047,20 @@ loop:
                                sum->ift_co - total->ift_co);
                        if (dflag)
                                printf(" %5llu", sum->ift_dr - total->ift_dr);
-                       if (prioflag)
-                               printf(" %10llu %10llu",
+                       if (prioflag >= 0)
+                               printf(" %10llu %10llu %10llu %10llu",
                                    sum->ift_otcp - total->ift_otcp,
-                                   sum->ift_otcb - total->ift_otcb);
+                                   sum->ift_otcb - total->ift_otcb,
+                                   sum->ift_opvp - total->ift_opvp,
+                                   sum->ift_opvb - total->ift_opvb);
+                       if (Fflag)
+                               printf(" %10llu %10llu",
+                                   sum->ift_fp - total->ift_fp,
+                                   sum->ift_fb - total->ift_fb);
                }
                *total = *sum;
+               
+               free(ifmsuppall);
        }
        if (!first)
                putchar('\n');
@@ -831,3 +1124,1448 @@ catchalarm(int signo )
 {
        signalled = YES;
 }
+
+static char *
+sec2str(total)
+       time_t total;
+{
+       static char result[256];
+       int days, hours, mins, secs;
+       int first = 1;
+       char *p = result;
+
+       days = total / 3600 / 24;
+       hours = (total / 3600) % 24;
+       mins = (total / 60) % 60;
+       secs = total % 60;
+
+       if (days) {
+               first = 0;
+               p += snprintf(p, sizeof(result) - (p - result), "%dd", days);
+       }
+       if (!first || hours) {
+               first = 0;
+               p += snprintf(p, sizeof(result) - (p - result), "%dh", hours);
+       }
+       if (!first || mins) {
+               first = 0;
+               p += snprintf(p, sizeof(result) - (p - result), "%dm", mins);
+       }
+       snprintf(p, sizeof(result) - (p - result), "%ds", secs);
+
+       return(result);
+}
+
+void
+intpr_ri(void (*pfunc)(char *))
+{
+       int mib[6];
+       char *buf = NULL, *lim, *next;
+       size_t len;
+       unsigned int ifindex = 0;
+       struct if_msghdr2 *if2m;
+
+       if (interface != 0) {
+               ifindex = if_nametoindex(interface);
+               if (ifindex == 0) {
+                       printf("interface name is not valid: %s\n", interface);
+                       exit(1);
+               }
+       }
+
+       mib[0]  = CTL_NET;              /* networking subsystem */
+       mib[1]  = PF_ROUTE;             /* type of information */
+       mib[2]  = 0;                    /* protocol (IPPROTO_xxx) */
+       mib[3]  = 0;                    /* address family */
+       mib[4]  = NET_RT_IFLIST2;       /* operation */
+       mib[5]  = 0;
+       if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0)
+               return;
+       if ((buf = malloc(len)) == NULL) {
+               printf("malloc failed\n");
+               exit(1);
+       }
+       if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) {
+               free(buf);
+               return;
+       }
+
+       printf("%-6s %-17s %8.8s %-9.9s %4s %4s",
+              "Proto", "Linklayer Address", "Netif", "Expire", "Refs",
+              "Prbs");
+       if (xflag)
+               printf(" %7s %7s %7s", "RSSI", "LQM", "NPM");
+       printf("\n");
+
+       lim = buf + len;
+       if2m = (struct if_msghdr2 *)buf;
+
+       for (next = buf; next < lim; ) {
+               if2m = (struct if_msghdr2 *)next;
+               next += if2m->ifm_msglen;
+
+               if (if2m->ifm_type != RTM_IFINFO2)
+                       continue;
+               else if (interface != 0 && if2m->ifm_index != ifindex)
+                       continue;
+
+               llreach_sysctl(if2m->ifm_index);
+       }
+       free(buf);
+}
+
+static void
+llreach_sysctl(uint32_t ifindex)
+{
+#define        MAX_SYSCTL_TRY  5
+       int mib[6], i, ntry = 0;
+       size_t mibsize, len, needed, cnt;
+       struct if_llreach_info *lri;
+       struct timeval time;
+       char *buf;
+       char ifname[IF_NAMESIZE];
+
+       bzero(&mib, sizeof (mib));
+       mibsize = sizeof (mib) / sizeof (mib[0]);
+       if (sysctlnametomib("net.link.generic.system.llreach_info", mib,
+           &mibsize) == -1) {
+               perror("sysctlnametomib");
+               return;
+       }
+
+       needed = 0;
+       mib[5] = ifindex;
+
+       mibsize = sizeof (mib) / sizeof (mib[0]);
+       do {
+               if (sysctl(mib, mibsize, NULL, &needed, NULL, 0) == -1) {
+                       perror("sysctl net.link.generic.system.llreach_info");
+                       return;
+               }
+               if ((buf = malloc(needed)) == NULL) {
+                       perror("malloc");
+                       return;
+               }
+               if (sysctl(mib, mibsize, buf, &needed, NULL, 0) == -1) {
+                       if (errno != ENOMEM || ++ntry >= MAX_SYSCTL_TRY) {
+                               perror("sysctl");
+                               goto out_free;
+                       }
+                       free(buf);
+                       buf = NULL;
+               }
+       } while (buf == NULL);
+
+       len = needed;
+       cnt = len / sizeof (*lri);
+       lri = (struct if_llreach_info *)buf;
+
+       gettimeofday(&time, 0);
+       if (if_indextoname(ifindex, ifname) == NULL)
+               snprintf(ifname, sizeof (ifname), "%s", "?");
+
+       for (i = 0; i < cnt; i++, lri++) {
+               printf("0x%-4x %-17s %8.8s ", lri->lri_proto,
+                   ether_ntoa((struct ether_addr *)lri->lri_addr), ifname);
+
+               if (lri->lri_expire > time.tv_sec)
+                       printf("%-9.9s", sec2str(lri->lri_expire - time.tv_sec));
+               else if (lri->lri_expire == 0)
+                       printf("%-9.9s", "permanent");
+               else
+                       printf("%-9.9s", "expired");
+
+               printf(" %4d", lri->lri_refcnt);
+               if (lri->lri_probes)
+                       printf(" %4d", lri->lri_probes);
+
+               if (xflag) {
+                       if (!lri->lri_probes)
+                               printf(" %-4.4s", "none");
+
+                       if (lri->lri_rssi != IFNET_RSSI_UNKNOWN)
+                               printf(" %7d", lri->lri_rssi);
+                       else
+                               printf(" %-7.7s", "unknown");
+
+                       switch (lri->lri_lqm)
+                       {
+                       case IFNET_LQM_THRESH_OFF:
+                               printf(" %-7.7s", "off");
+                               break;
+                       case IFNET_LQM_THRESH_UNKNOWN:
+                               printf(" %-7.7s", "unknown");
+                               break;
+                       case IFNET_LQM_THRESH_POOR:
+                               printf(" %-7.7s", "poor");
+                               break;
+                       case IFNET_LQM_THRESH_GOOD:
+                               printf(" %-7.7s", "good");
+                               break;
+                       default:
+                               printf(" %7d", lri->lri_lqm);
+                               break;
+                       }
+
+                       switch (lri->lri_npm)
+                       {
+                       case IFNET_NPM_THRESH_UNKNOWN:
+                               printf(" %-7.7s", "unknown");
+                               break;
+                       case IFNET_NPM_THRESH_NEAR:
+                               printf(" %-7.7s", "near");
+                               break;
+                       case IFNET_NPM_THRESH_GENERAL:
+                               printf(" %-7.7s", "general");
+                               break;
+                       case IFNET_NPM_THRESH_FAR:
+                               printf(" %-7.7s", "far");
+                               break;
+                       default:
+                               printf(" %7d", lri->lri_npm);
+                               break;
+                       }
+               }
+
+               printf("\n");
+               len -= sizeof (*lri);
+       }
+
+       if (len > 0) {
+               fprintf(stderr, "warning: %u trailing bytes from %s\n",
+                   (unsigned int)len, "net.link.generic.system.llreach_info");
+       }
+
+out_free:
+       free(buf);
+#undef MAX_SYSCTL_TRY
+}
+
+void
+aqstatpr(void)
+{
+       unsigned int ifindex;
+       struct itimerval timer_interval;
+       struct if_qstatsreq ifqr;
+       struct if_ifclassq_stats *ifcqs;
+       sigset_t sigset, oldsigset;
+       u_int32_t scheduler;
+       int s, n, tcq = 0;
+
+       if (cq < -1 || cq >= IFCQ_SC_MAX) {
+               fprintf(stderr, "Invalid classq index (range is 0-%d)\n",
+                    IFCQ_SC_MAX-1);
+               return;
+       }
+       ifindex = if_nametoindex(interface);
+       if (ifindex == 0) {
+               fprintf(stderr, "Invalid interface name\n");
+               return;
+       }
+
+       ifcqs = malloc(sizeof (*ifcqs));
+       if (ifcqs == NULL) {
+               fprintf(stderr, "Unable to allocate memory\n");
+               return;
+       }
+
+       if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+               perror("Warning: socket(AF_INET)");
+               free(ifcqs);
+               return;
+       }
+
+       bzero(&ifqr, sizeof (ifqr));
+       strlcpy(ifqr.ifqr_name, interface, sizeof (ifqr.ifqr_name));
+       ifqr.ifqr_buf = ifcqs;
+       ifqr.ifqr_len = sizeof (*ifcqs);
+
+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);
+       }
+
+       ifqr.ifqr_slot = 0;
+       if (ioctl(s, SIOCGIFQUEUESTATS, (char *)&ifqr) < 0) {
+               if (errno == ENXIO) {
+                       printf("Queue statistics are not available on %s\n",
+                           interface);
+               } else {
+                       perror("Warning: ioctl(SIOCGIFQUEUESTATS)");
+               }
+               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 ? "" : " ",
+           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;
+
+               ifqr.ifqr_slot = n;
+               if (ioctl(s, SIOCGIFQUEUESTATS, (char *)&ifqr) < 0) {
+                       perror("Warning: ioctl(SIOCGIFQUEUESTATS)");
+                       goto done;
+               }
+
+               update_avg(ifcqs, &qstats[n]);
+
+               switch (scheduler) {
+                       case PKTSCHEDT_TCQ:
+                               print_tcqstats(n, &ifcqs->ifqs_tcq_stats,
+                                   &qstats[n]);
+                               break;
+                       case PKTSCHEDT_QFQ:
+                               print_qfqstats(n, &ifcqs->ifqs_qfq_stats,
+                                   &qstats[n]);
+                               break;
+                       case PKTSCHEDT_FQ_CODEL:
+                               print_fq_codel_stats(n,
+                                   &ifcqs->ifqs_fq_codel_stats,
+                                   &qstats[n]);
+                               break;
+                       case PKTSCHEDT_NONE:
+                       default:
+                               break;
+               }
+       }
+
+       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;
+       }
+
+done:
+       free(ifcqs);
+       close(s);
+}
+
+static void
+print_tcqstats(int slot, struct tcq_classstats *cs, struct queue_stats *qs)
+{
+       int n;
+
+       if (qs->printed)
+               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));
+       }
+
+       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_fq_codel_stats(int pri, struct fq_codel_classstats *fqst,
+    struct queue_stats *qs)
+{
+       int i = 0;
+
+       if (fqst->fcls_service_class == 0 && fqst->fcls_pri == 0)
+               return;
+       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);
+
+       if (qflag < 2)
+               return;
+
+       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");
+               }
+       }
+}
+
+static void
+print_sfbstats(struct sfb_stats *sfb)
+{
+       struct sfbstats *sp = &sfb->sfbstats;
+       int i, j, cur = sfb->current;
+
+       printf("\n");
+       printf("     [target delay: %14s   ",
+           nsec_to_str(sfb->target_qdelay));
+       printf("update interval: %14s]\n",
+           nsec_to_str(sfb->update_interval));
+       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("     [ min queue delay: %10s   delay_fcthreshold: %12u]\n "
+           "     [stalls: %12llu]\n",
+           nsec_to_str(sfb->min_estdelay), sfb->delay_fcthreshold,
+           sp->dequeue_stall);
+
+       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");
+               }
+       }
+       printf("\n");
+}
+
+static void
+update_avg(struct if_ifclassq_stats *ifcqs, struct queue_stats *qs)
+{
+       u_int64_t                b, p;
+       int                      n;
+
+       n = qs->avgn;
+
+       switch (ifcqs->ifqs_scheduler) {
+       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;
+               break;
+       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;
+               p = 0;
+               break;
+       }
+
+       if (n == 0) {
+               qs->prev_bytes = b;
+               qs->prev_packets = p;
+               qs->avgn++;
+               return;
+       }
+
+       if (b >= qs->prev_bytes)
+               qs->avg_bytes = ((qs->avg_bytes * (n - 1)) +
+                   (b - qs->prev_bytes)) / n;
+
+       if (p >= qs->prev_packets)
+               qs->avg_packets = ((qs->avg_packets * (n - 1)) +
+                   (p - qs->prev_packets)) / n;
+
+       qs->prev_bytes = b;
+       qs->prev_packets = p;
+       if (n < AVGN_MAX)
+               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_SFB:
+               c = "SFB";
+               break;
+       default:
+               c = "UNKNOWN";
+               break;
+       }
+
+       return (c);
+}
+
+#define NSEC_PER_SEC    1000000000      /* 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)
+{
+       static char buf[32];
+       const char *u;
+       long double n = nsec, t;
+
+       if (nsec >= NSEC_PER_SEC) {
+               t = n / NSEC_PER_SEC;
+               u = "sec ";
+       } else if (n >= USEC_PER_SEC) {
+               t = n / USEC_PER_SEC;
+               u = "msec";
+       } else if (n >= MSEC_PER_SEC) {
+               t = n / MSEC_PER_SEC;
+               u = "usec";
+       } else {
+               t = n;
+               u = "nsec";
+       }
+
+       snprintf(buf, sizeof (buf), "%-4.2Lf %4s", t, u);
+       return (buf);
+}
+
+static char *
+sched2str(unsigned int s)
+{
+       char *c;
+
+       switch (s) {
+       case PKTSCHEDT_NONE:
+               c = "NONE";
+               break;
+       case PKTSCHEDT_TCQ:
+               c = "TCQ";
+               break;
+       case PKTSCHEDT_QFQ:
+               c = "QFQ";
+               break;
+       case PKTSCHEDT_FQ_CODEL:
+               c = "FQ_CODEL";
+               break;
+       default:
+               c = "UNKNOWN";
+               break;
+       }
+
+       return (c);
+}
+
+static char *
+qid2str(unsigned int s)
+{
+       char *c;
+
+       switch (s) {
+       case 0:
+               c = "BE";
+               break;
+       case 1:
+               c = "BK_SYS";
+               break;
+       case 2:
+               c = "BK";
+               break;
+       case 3:
+               c = "RD";
+               break;
+       case 4:
+               c = "OAM";
+               break;
+       case 5:
+               c = "AV";
+               break;
+       case 6:
+               c = "RV";
+               break;
+       case 7:
+               c = "VI";
+               break;
+       case 8:
+               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";
+               break;
+       default:
+               c = "?";
+               break;
+       }
+
+       return (c);
+}
+
+static char *
+pri2str(unsigned int i)
+{
+       char *c;
+       switch (i) {
+       case 9:
+               c = "BK_SYS";
+               break;
+       case 8:
+               c = "BK";
+               break;
+       case 7:
+               c = "BE";
+               break;
+       case 6:
+               c = "RD";
+               break;
+       case 5:
+               c = "OAM";
+               break;
+       case 4:
+               c = "AV";
+               break;
+       case 3:
+               c = "RV";
+               break;
+       case 2:
+               c = "VI";
+               break;
+       case 1:
+               c = "VO";
+               break;
+       case 0:
+               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)
+{
+       struct ifmibdata_supplemental ifmsupp;
+       size_t miblen = sizeof (ifmsupp);
+       struct itimerval timer_interval;
+       struct if_rxpoll_stats *sp;
+       sigset_t sigset, oldsigset;
+       unsigned int ifindex;
+       int name[6];
+
+       ifindex = if_nametoindex(interface);
+       if (ifindex == 0) {
+               fprintf(stderr, "Invalid interface name\n");
+               return;
+       }
+
+       bzero(&ifmsupp, sizeof (struct ifmibdata_supplemental));
+
+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);
+       }
+
+       /* Common OID prefix */
+       name[0] = CTL_NET;
+       name[1] = PF_LINK;
+       name[2] = NETLINK_GENERIC;
+       name[3] = IFMIB_IFDATA;
+       name[4] = ifindex;
+       name[5] = IFDATA_SUPPLEMENTAL;
+       if (sysctl(name, 6, &ifmsupp, &miblen, NULL, 0) == -1)
+               err(1, "sysctl IFDATA_SUPPLEMENTAL");
+
+       sp = &ifmsupp.ifmd_rxpoll_stats;
+
+       printf("%-4s [ poll on requests:  %15u  errors: %27u ]\n",
+           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("     [ sampled packets avg/min/max: %12u / %12u / %12u ]\n",
+           sp->ifi_poll_packets_avg, sp->ifi_poll_packets_min,
+           sp->ifi_poll_packets_max);
+       printf("     [ sampled bytes avg/min/max:   %12u / %12u / %12u ]\n",
+           sp->ifi_poll_bytes_avg, sp->ifi_poll_bytes_min,
+           sp->ifi_poll_bytes_max);
+       printf("     [ sampled wakeups avg:         %12u ]\n",
+           sp->ifi_poll_wakeups_avg);
+       printf("     [ packets lowat/hiwat threshold: %10u / %10u ]\n",
+           sp->ifi_poll_packets_lowat, sp->ifi_poll_packets_hiwat);
+       printf("     [ bytes lowat/hiwat threshold:   %10u / %10u ]\n",
+           sp->ifi_poll_bytes_lowat, sp->ifi_poll_bytes_hiwat);
+       printf("     [ wakeups lowat/hiwat threshold: %10u / %10u ]\n",
+           sp->ifi_poll_wakeups_lowat, sp->ifi_poll_wakeups_hiwat);
+
+       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) {
+               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;
+       }
+done:
+       if (sref)
+               rem_nstat_src(ctl_fd, sref);
+       close(ctl_fd);
+}