+
+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;
+
+ 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;
+
+ printf("%s:\n"
+ " [ sched: %9s qlength: %3d/%3d ]\n",
+ interface, sched2str(ifcqs->ifqs_scheduler),
+ ifcqs->ifqs_len, ifcqs->ifqs_maxlen);
+ printf(" [ pkts: %10llu bytes: %10llu "
+ " dropped pkts: %6llu bytes: %6llu ]\n",
+ ifcqs->ifqs_xmitcnt.packets, ifcqs->ifqs_xmitcnt.bytes,
+ ifcqs->ifqs_dropcnt.packets, ifcqs->ifqs_dropcnt.bytes);
+
+ for (n = 0; n < IFCQ_SC_MAX && 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_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_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);
+ printf(" [ compressible pkts: %u compressed pkts: %u]\n",
+ fqst->fcls_pkts_compressible, fqst->fcls_pkts_compressed);
+
+ 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
+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_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++;
+}
+
+#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_FQ_CODEL:
+ c = "FQ_CODEL";
+ break;
+ default:
+ c = "UNKNOWN";
+ 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);
+}
+
+void
+rxpollstatpr(void)
+{
+ struct ifmibdata_supplemental ifmsupp;
+ size_t miblen = sizeof (ifmsupp);
+ struct itimerval timer_interval;
+ struct if_rxpoll_stats *sp;
+ struct if_netif_stats *np;
+ sigset_t sigset, oldsigset;
+ unsigned int ifindex;
+ int name[6];
+
+ 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 per poll limit: %19u ]\n",
+ sp->ifi_poll_packets, sp->ifi_poll_packets_limit);
+ printf(" [ polled bytes: %20llu ]\n", sp->ifi_poll_bytes);
+ printf(" [ poll interval: %14llu nsec ]\n",
+ sp->ifi_poll_interval_time);
+ printf(" [ sampled packets avg/min/max: %12u / %12u / %12u ]\n",
+ sp->ifi_poll_packets_avg, sp->ifi_poll_packets_min,
+ sp->ifi_poll_packets_max);
+ 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);
+
+ np = &ifmsupp.ifmd_netif_stats;
+ printf(" [ mit mode: %24U cfg idx: %26u ]\n",
+ np->ifn_rx_mit_mode, np->ifn_rx_mit_cfg_idx);
+ printf(" [ cfg packets lo/hi threshold: %12u / %12u ]\n",
+ np->ifn_rx_mit_cfg_packets_lowat, np->ifn_rx_mit_cfg_packets_hiwat);
+ printf(" [ cfg bytes lo/hi threshold: %12u / %12u ]\n",
+ np->ifn_rx_mit_cfg_bytes_lowat, np->ifn_rx_mit_cfg_bytes_hiwat);
+ printf(" [ cfg interval: %15u nsec ]\n",
+ np->ifn_rx_mit_cfg_interval);
+ printf(" [ mit interval: %15llu nsec ]\n",
+ np->ifn_rx_mit_interval);
+ printf(" [ mit packets avg/min/max: %12u / %12u / %12u ]\n",
+ np->ifn_rx_mit_packets_avg, np->ifn_rx_mit_packets_min,
+ np->ifn_rx_mit_packets_max);
+ printf(" [ mit bytes avg/min/max: %12u / %12u / %12u ]\n",
+ np->ifn_rx_mit_bytes_avg, np->ifn_rx_mit_bytes_min,
+ np->ifn_rx_mit_bytes_max);
+
+ fflush(stdout);
+
+ if (interval > 0) {
+ sigemptyset(&sigset);
+ sigaddset(&sigset, SIGALRM);
+ (void) sigprocmask(SIG_BLOCK, &sigset, &oldsigset);
+ if (!signalled) {
+ sigemptyset(&sigset);
+ sigsuspend(&sigset);
+ }
+ (void) sigprocmask(SIG_SETMASK, &oldsigset, NULL);
+
+ signalled = NO;
+ goto loop;
+ }
+}
+
+static int
+create_control_socket(const char *control_name)
+{
+ struct sockaddr_ctl sc;
+ struct ctl_info ctl;
+ int fd;
+
+ fd = socket(PF_SYSTEM, SOCK_DGRAM, SYSPROTO_CONTROL);
+ if (fd == -1) {
+ perror("socket(PF_SYSTEM)");
+ return fd;
+ }
+
+ /* Get the control ID for statistics */
+ bzero(&ctl, sizeof(ctl));
+ strlcpy(ctl.ctl_name, control_name, sizeof(ctl.ctl_name));
+ if (ioctl(fd, CTLIOCGINFO, &ctl) == -1)
+ {
+ perror("ioctl(CTLIOCGINFO)");
+ close(fd);
+ return -1;
+ }
+
+ /* Connect to the statistics control */
+ bzero(&sc, sizeof(sc));
+ sc.sc_len = sizeof(sc);
+ sc.sc_family = AF_SYSTEM;
+ sc.ss_sysaddr = SYSPROTO_CONTROL;
+ sc.sc_id = ctl.ctl_id;
+ sc.sc_unit = 0;
+ if (connect(fd, (struct sockaddr*)&sc, sc.sc_len) != 0)
+ {
+ perror("connect(SYSPROTO_CONTROL)");
+ close(fd);
+ return -1;
+ }
+
+ /* Set socket to non-blocking operation */
+ if (fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK) == -1) {
+ perror("fcnt(F_SETFL,O_NONBLOCK)");
+ close(fd);
+ return -1;
+ }
+ return fd;
+}
+
+static int
+add_nstat_src(int fd, const nstat_ifnet_add_param *ifparam,
+ nstat_src_ref_t *outsrc)
+{
+ nstat_msg_add_src_req *addreq;
+ nstat_msg_src_added *addedmsg;
+ nstat_ifnet_add_param *param;
+ char buffer[sizeof(*addreq) + sizeof(*param)];
+ ssize_t result;
+ const u_int32_t addreqsize =
+ offsetof(struct nstat_msg_add_src, param) + sizeof(*param);
+
+ /* Setup the add source request */
+ addreq = (nstat_msg_add_src_req *)buffer;
+ param = (nstat_ifnet_add_param*)addreq->param;
+ bzero(addreq, addreqsize);
+ addreq->hdr.context = (uintptr_t)&buffer;
+ addreq->hdr.type = NSTAT_MSG_TYPE_ADD_SRC;
+ addreq->provider = NSTAT_PROVIDER_IFNET;
+ bzero(param, sizeof(*param));
+ param->ifindex = ifparam->ifindex;
+ param->threshold = ifparam->threshold;
+
+ /* Send the add source request */
+ result = send(fd, addreq, addreqsize, 0);
+ if (result != addreqsize)
+ {
+ if (result == -1)
+ perror("send(NSTAT_ADD_SRC_REQ)");
+ else
+ fprintf(stderr, "%s: could only sent %ld out of %d\n",
+ __func__, result, addreqsize);
+ return -1;
+ }
+
+ /* Receive the response */
+ addedmsg = (nstat_msg_src_added *)buffer;
+ result = recv(fd, addedmsg, sizeof(buffer), 0);
+ if (result < sizeof(*addedmsg))
+ {
+ if (result == -1)
+ perror("recv(NSTAT_ADD_SRC_RSP)");
+ else
+ fprintf(stderr, "%s: recv too small, received %ld, "
+ "expected %lu\n", __func__, result,
+ sizeof(*addedmsg));
+ return -1;
+ }
+
+ if (addedmsg->hdr.type != NSTAT_MSG_TYPE_SRC_ADDED)
+ {
+ fprintf(stderr, "%s: received wrong message type, received %u "
+ "expected %u\n", __func__, addedmsg->hdr.type,
+ NSTAT_MSG_TYPE_SRC_ADDED);
+ return -1;
+ }
+
+ if (addedmsg->hdr.context != (uintptr_t)&buffer)
+ {
+ fprintf(stderr, "%s: received wrong context, received %llu "
+ "expected %lu\n", __func__, addedmsg->hdr.context,
+ (uintptr_t)&buffer);
+ return -1;
+ }
+ *outsrc = addedmsg->srcref;
+ return 0;
+}
+
+static int
+rem_nstat_src(int fd, nstat_src_ref_t sref)
+{
+ nstat_msg_rem_src_req *remreq;
+ nstat_msg_src_removed *remrsp;
+ char buffer[sizeof(*remreq)];
+ ssize_t result;
+
+ /* Setup the add source request */
+ remreq = (nstat_msg_rem_src_req *)buffer;
+ bzero(remreq, sizeof(*remreq));
+ remreq->hdr.type = NSTAT_MSG_TYPE_REM_SRC;
+ remreq->srcref = sref;
+
+ /* Send the remove source request */
+ result = send(fd, remreq, sizeof(*remreq), 0);
+ if (result != sizeof(*remreq)) {
+ if (result == -1)
+ perror("send(NSTAT_REM_SRC_REQ)");
+ else
+ fprintf(stderr, "%s: could only sent %ld out of %lu\n",
+ __func__, result, sizeof(*remreq));
+ return -1;
+ }
+
+ /* Receive the response */
+ remrsp = (nstat_msg_src_removed *)buffer;
+ result = recv(fd, remrsp, sizeof(buffer), 0);
+ if (result < sizeof(*remrsp)) {
+ if (result == -1)
+ perror("recv(NSTAT_REM_SRC_RSP)");
+ else
+ fprintf(stderr, "%s: recv too small, received %ld, "
+ "expected %lu\n", __func__, result,
+ sizeof(*remrsp));
+ return -1;
+ }
+
+ if (remrsp->hdr.type != NSTAT_MSG_TYPE_SRC_REMOVED) {
+ fprintf(stderr, "%s: received wrong message type, received %u "
+ "expected %u\n", __func__, remrsp->hdr.type,
+ NSTAT_MSG_TYPE_SRC_REMOVED);
+ return -1;
+ }
+
+ if (remrsp->srcref != sref) {
+ fprintf(stderr, "%s: received invalid srcref, received %llu "
+ "expected %llu\n", __func__, remrsp->srcref, sref);
+ }
+ return 0;
+}
+
+static int
+get_src_decsription(int fd, nstat_src_ref_t srcref,
+ struct nstat_ifnet_descriptor *ifdesc)
+{
+ nstat_msg_get_src_description *dreq;
+ nstat_msg_src_description *drsp;
+ char buffer[sizeof(*drsp) + sizeof(*ifdesc)];
+ ssize_t result;
+ const u_int32_t descsize =
+ offsetof(struct nstat_msg_src_description, data) +
+ sizeof(nstat_ifnet_descriptor);
+
+ dreq = (nstat_msg_get_src_description *)buffer;
+ bzero(dreq, sizeof(*dreq));
+ dreq->hdr.type = NSTAT_MSG_TYPE_GET_SRC_DESC;
+ dreq->srcref = srcref;
+ result = send(fd, dreq, sizeof(*dreq), 0);
+ if (result != sizeof(*dreq))
+ {
+ if (result == -1)
+ perror("send(NSTAT_GET_SRC_DESC_REQ)");
+ else
+ fprintf(stderr, "%s: sent %ld out of %lu\n",
+ __func__, result, sizeof(*dreq));
+ return -1;
+ }
+
+ /* Receive the source description response */
+ drsp = (nstat_msg_src_description *)buffer;
+ result = recv(fd, drsp, sizeof(buffer), 0);
+ if (result < descsize)
+ {
+ if (result == -1)
+ perror("recv(NSTAT_GET_SRC_DESC_RSP");
+ else
+ fprintf(stderr, "%s: recv too small, received %ld, "
+ "expected %u\n", __func__, result, descsize);
+ return -1;
+ }
+
+ if (drsp->hdr.type != NSTAT_MSG_TYPE_SRC_DESC)
+ {
+ fprintf(stderr, "%s: received wrong message type, received %u "
+ "expected %u\n", __func__, drsp->hdr.type,
+ NSTAT_MSG_TYPE_SRC_DESC);
+ return -1;
+ }
+
+ if (drsp->srcref != srcref)
+ {
+ fprintf(stderr, "%s: received message for wrong source, "
+ "received 0x%llx expected 0x%llx\n",
+ __func__, drsp->srcref, srcref);
+ return -1;
+ }
+
+ bcopy(drsp->data, ifdesc, sizeof(*ifdesc));
+ return 0;
+}
+
+static void
+print_wifi_status(nstat_ifnet_desc_wifi_status *status)
+{
+ int tmp;
+#define val(x, f) \
+ ((status->valid_bitmask & NSTAT_IFNET_DESC_WIFI_ ## f ## _VALID) ?\
+ status->x : -1)
+#define parg(n, un) #n, val(n, un)
+#define pretxtl(n, un) \
+ (((tmp = val(n, un)) == -1) ? "(not valid)" : \
+ ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_NONE) ? "(none)" : \
+ ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_LOW) ? "(low)" : \
+ ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_MEDIUM) ? "(medium)" : \
+ ((tmp == NSTAT_IFNET_DESC_WIFI_UL_RETXT_LEVEL_HIGH) ? "(high)" : \
+ "(?)")))))
+
+ printf("\nwifi status:\n");
+ printf(
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t\t%d%s\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t\t%d\n",
+ parg(link_quality_metric, LINK_QUALITY_METRIC),
+ parg(ul_effective_bandwidth, UL_EFFECTIVE_BANDWIDTH),
+ parg(ul_max_bandwidth, UL_MAX_BANDWIDTH),
+ parg(ul_min_latency, UL_MIN_LATENCY),
+ parg(ul_effective_latency, UL_EFFECTIVE_LATENCY),
+ parg(ul_max_latency, UL_MAX_LATENCY),
+ parg(ul_retxt_level, UL_RETXT_LEVEL),
+ pretxtl(ul_retxt_level, UL_RETXT_LEVEL),
+ parg(ul_bytes_lost, UL_BYTES_LOST),
+ parg(ul_error_rate, UL_ERROR_RATE),
+ parg(dl_effective_bandwidth, DL_EFFECTIVE_BANDWIDTH),
+ parg(dl_max_bandwidth, DL_MAX_BANDWIDTH),
+ parg(dl_min_latency, DL_MIN_LATENCY),
+ parg(dl_effective_latency, DL_EFFECTIVE_LATENCY),
+ parg(dl_max_latency, DL_MAX_LATENCY),
+ parg(dl_error_rate, DL_ERROR_RATE),
+ parg(config_frequency, CONFIG_FREQUENCY),
+ parg(config_multicast_rate, CONFIG_MULTICAST_RATE),
+ parg(scan_count, CONFIG_SCAN_COUNT),
+ parg(scan_duration, CONFIG_SCAN_DURATION)
+ );
+#undef pretxtl
+#undef parg
+#undef val
+}
+
+static void
+print_cellular_status(nstat_ifnet_desc_cellular_status *status)
+{
+ int tmp, tmp_mss;
+#define val(x, f) \
+ ((status->valid_bitmask & NSTAT_IFNET_DESC_CELL_ ## f ## _VALID) ?\
+ status->x : -1)
+#define parg(n, un) #n, val(n, un)
+#define pretxtl(n, un) \
+ (((tmp = val(n, un)) == -1) ? "(not valid)" : \
+ ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_NONE) ? "(none)" : \
+ ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_LOW) ? "(low)" : \
+ ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_MEDIUM) ? "(medium)" : \
+ ((tmp == NSTAT_IFNET_DESC_CELL_UL_RETXT_LEVEL_HIGH) ? "(high)" : \
+ "(?)")))))
+#define pretxtm(n, un) \
+ (((tmp_mss = val(n,un)) == -1) ? "(not valid)" : \
+ ((tmp_mss == NSTAT_IFNET_DESC_MSS_RECOMMENDED_NONE) ? "(none)" : \
+ ((tmp_mss == NSTAT_IFNET_DESC_MSS_RECOMMENDED_MEDIUM) ? "(medium)" : \
+ ((tmp_mss == NSTAT_IFNET_DESC_MSS_RECOMMENDED_LOW) ? "(low)" : \
+ "(?)"))))
+
+ printf("\ncellular status:\n");
+ printf(
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t\t%d%s\n"
+ "\t%s:\t\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d\n"
+ "\t%s:\t%d %s\n",
+ parg(link_quality_metric, LINK_QUALITY_METRIC),
+ parg(ul_effective_bandwidth, UL_EFFECTIVE_BANDWIDTH),
+ parg(ul_max_bandwidth, UL_MAX_BANDWIDTH),
+ parg(ul_min_latency, UL_MIN_LATENCY),
+ parg(ul_effective_latency, UL_EFFECTIVE_LATENCY),
+ parg(ul_max_latency, UL_MAX_LATENCY),
+ parg(ul_retxt_level, UL_RETXT_LEVEL),
+ pretxtl(ul_retxt_level, UL_RETXT_LEVEL),
+ parg(ul_bytes_lost, UL_BYTES_LOST),
+ parg(ul_min_queue_size, UL_MIN_QUEUE_SIZE),
+ parg(ul_avg_queue_size, UL_AVG_QUEUE_SIZE),
+ parg(ul_max_queue_size, UL_MAX_QUEUE_SIZE),
+ parg(dl_effective_bandwidth, DL_EFFECTIVE_BANDWIDTH),
+ parg(dl_max_bandwidth, DL_MAX_BANDWIDTH),
+ parg(config_inactivity_time, CONFIG_INACTIVITY_TIME),
+ parg(config_backoff_time, CONFIG_BACKOFF_TIME),
+ parg(mss_recommended, MSS_RECOMMENDED),
+ pretxtm(mss_recommended, MSS_RECOMMENDED)
+ );
+#undef pretxtl
+#undef parg
+#undef val
+}
+
+static int
+get_interface_state(int fd, const char *ifname, struct ifreq *ifr)
+{
+ bzero(ifr, sizeof(*ifr));
+ snprintf(ifr->ifr_name, sizeof(ifr->ifr_name), "%s", ifname);
+
+ if (ioctl(fd, SIOCGIFINTERFACESTATE, ifr) == -1) {
+ perror("ioctl(CTLIOCGINFO)");
+ return -1;
+ }
+ return 0;
+}
+
+static void
+print_interface_state(struct ifreq *ifr)
+{
+ int lqm, rrc, avail;
+
+ printf("\ninterface state:\n");
+
+ if (ifr->ifr_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_LQM_STATE_VALID) {
+ printf("\tlqm: ");
+ lqm = ifr->ifr_interface_state.lqm_state;
+ if (lqm == IFNET_LQM_THRESH_GOOD)
+ printf("\"good\"");
+ else if (lqm == IFNET_LQM_THRESH_POOR)
+ printf("\"poor\"");
+ else if (lqm == IFNET_LQM_THRESH_BAD)
+ printf("\"bad\"");
+ else if (lqm == IFNET_LQM_THRESH_UNKNOWN)
+ printf("\"unknown\"");
+ else if (lqm == IFNET_LQM_THRESH_OFF)
+ printf("\"off\"");
+ else
+ printf("invalid(%d)", lqm);
+ }
+
+ if (ifr->ifr_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_RRC_STATE_VALID) {
+ printf("\trrc: ");
+ rrc = ifr->ifr_interface_state.rrc_state;
+ if (rrc == IF_INTERFACE_STATE_RRC_STATE_CONNECTED)
+ printf("\"connected\"");
+ else if (rrc == IF_INTERFACE_STATE_RRC_STATE_IDLE)
+ printf("\"idle\"");
+ else
+ printf("\"invalid(%d)\"", rrc);
+ }
+
+ if (ifr->ifr_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID) {
+ printf("\tavailability: ");
+ avail = ifr->ifr_interface_state.interface_availability;
+ if (avail == IF_INTERFACE_STATE_INTERFACE_AVAILABLE)
+ printf("\"true\"");
+ else if (rrc == IF_INTERFACE_STATE_INTERFACE_UNAVAILABLE)
+ printf("\"false\"");
+ else
+ printf("\"invalid(%d)\"", avail);
+ }
+}
+
+void
+print_link_status(const char *ifname)
+{
+ unsigned int ifindex;
+ struct itimerval timer_interval;
+ sigset_t sigset, oldsigset;
+ struct nstat_ifnet_descriptor ifdesc;
+ nstat_ifnet_add_param ifparam;
+ nstat_src_ref_t sref = 0;
+ struct ifreq ifr;
+ int ctl_fd;
+
+ ifindex = if_nametoindex(ifname);
+ if (ifindex == 0) {
+ fprintf(stderr, "Invalid interface name\n");
+ return;
+ }
+
+ if ((ctl_fd = create_control_socket(NET_STAT_CONTROL_NAME)) < 0)
+ return;
+
+ ifparam.ifindex = ifindex;
+ ifparam.threshold = UINT64_MAX;
+ if (add_nstat_src(ctl_fd, &ifparam, &sref))
+ goto done;
+loop:
+ if (interval > 0) {
+ /* create a timer that fires repeatedly every interval
+ * seconds */
+ timer_interval.it_value.tv_sec = interval;
+ timer_interval.it_value.tv_usec = 0;
+ timer_interval.it_interval.tv_sec = interval;
+ timer_interval.it_interval.tv_usec = 0;
+ (void) signal(SIGALRM, catchalarm);
+ signalled = NO;
+ (void) setitimer(ITIMER_REAL, &timer_interval, NULL);
+ }
+
+ /* get interface state */
+ if (get_interface_state(ctl_fd, ifname, &ifr))
+ goto done;
+
+ /* get ntstat interface description */
+ if (get_src_decsription(ctl_fd, sref, &ifdesc))
+ goto done;
+
+ /* print time */
+ printf("\n%s: ", ifname);
+ print_time();
+
+ /* print interface state */
+ print_interface_state(&ifr);
+
+ /* print ntsat interface link status */
+ if (ifdesc.link_status.link_status_type ==
+ NSTAT_IFNET_DESC_LINK_STATUS_TYPE_CELLULAR)
+ print_cellular_status(&ifdesc.link_status.u.cellular);
+ else if (ifdesc.link_status.link_status_type ==
+ NSTAT_IFNET_DESC_LINK_STATUS_TYPE_WIFI)
+ print_wifi_status(&ifdesc.link_status.u.wifi);
+
+ fflush(stdout);
+
+ if (interval > 0) {
+ 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);
+}