2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)if.c 8.3 (Berkeley) 4/28/95
30 * $FreeBSD: src/usr.bin/netstat/if.c,v 1.32.2.9 2001/09/17 14:35:46 ru Exp $
33 #define _KERNEL_STRUCTURES
34 #include <sys/param.h>
35 #include <sys/protosw.h>
36 #include <sys/socket.h>
37 #include <sys/sysctl.h>
41 #include <net/if_var.h>
42 #include <net/if_dl.h>
43 #include <net/if_types.h>
44 #include <net/ethernet.h>
45 #include <netinet/in.h>
46 #include <netinet/in_var.h>
47 #include <arpa/inet.h>
61 static void sidewaysintpr (u_int, u_long, int);
62 static void catchalarm (int);
65 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
70 * Display a formatted value, or a '-' in the same space.
73 show_stat(const char *fmt, int width, u_long value, short showvalue)
78 /* no value, just the dash */
79 sprintf(newfmt, "%%%ds", width);
84 if (hflag) { /* human-readable */
86 humanize_number(buf, sizeof buf, (int64_t) value, "",
88 HN_NOSPACE | HN_DECIMAL);
89 sprintf(newfmt, "%%%ds", width);
92 sprintf(newfmt, "%%%d%s", width, fmt);
93 printf(newfmt, value);
100 * Print a description of the network interfaces.
103 intpr(int interval1, u_long ifnetaddr, void (*pfunc)(char *), u_long ncpusaddr)
106 struct ifdata_pcpu ifdata;
107 struct ifaddr_container ifac;
108 struct ifnethead ifnethead;
113 struct in6_ifaddr in6;
117 u_long ifaddrcont_addr;
129 struct sockaddr *sa = NULL;
135 if (kread(ncpusaddr, (char *)&ncpus, sizeof(ncpus)))
138 if (ifnetaddr == 0) {
139 printf("ifnet: symbol not defined\n");
143 sidewaysintpr((unsigned)interval1, ifnetaddr, ncpus);
146 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
148 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
149 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
153 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
154 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
156 printf(" %10.10s","Ibytes");
157 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
159 printf(" %10.10s","Obytes");
160 printf(" %5s", "Coll");
162 printf(" %s", "Time");
164 printf(" %s", "Drop");
169 while (ifnetaddr || ifaddraddr) {
170 struct sockaddr_in *sin;
172 struct sockaddr_in6 *sin6;
180 if (ifaddraddr == 0) {
181 struct ifaddrhead head;
183 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
185 strlcpy(name, ifnet.if_xname, sizeof(name));
186 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
187 if (interface != 0 && (strcmp(name, interface) != 0))
189 cp = strchr(name, '\0');
196 if ((ifnet.if_flags&IFF_UP) == 0)
200 if (kread((u_long)ifnet.if_addrheads,
201 (char *)&head, sizeof(head)))
205 (u_long)TAILQ_FIRST(&head);
206 if (ifaddrcont_addr == 0) {
209 if (kread(ifaddrcont_addr, (char *)&ifac,
212 ifaddraddr = (u_long)ifac.ifa;
215 ifaddrfound = ifaddraddr;
218 * Get the interface stats. These may get
219 * overriden below on a per-interface basis.
221 ifdataaddr = (u_long)ifnet.if_data_pcpu;
222 if (kread(ifdataaddr, (char *)&ifdata, sizeof(ifdata)))
224 opackets = ifdata.ifd_opackets;
225 ipackets = ifdata.ifd_ipackets;
226 obytes = ifdata.ifd_obytes;
227 ibytes = ifdata.ifd_ibytes;
228 oerrors = ifdata.ifd_oerrors;
229 ierrors = ifdata.ifd_ierrors;
230 collisions = ifdata.ifd_collisions;
232 for (cpu = 1; cpu < ncpus; ++cpu) {
233 if (kread(ifdataaddr + (cpu * sizeof(ifdata)),
234 (char *)&ifdata, sizeof(ifdata)))
236 opackets += ifdata.ifd_opackets;
237 ipackets += ifdata.ifd_ipackets;
238 obytes += ifdata.ifd_obytes;
239 ibytes += ifdata.ifd_ibytes;
240 oerrors += ifdata.ifd_oerrors;
241 ierrors += ifdata.ifd_ierrors;
242 collisions += ifdata.ifd_collisions;
245 timer = ifnet.if_timer;
248 if (ifaddraddr == 0) {
249 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
250 printf("%-13.13s ", "none");
251 printf("%-15.15s ", "none");
253 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
258 ifaddr.ifa.if_ipackets = ifac.ifa_ipackets;
259 ifaddr.ifa.if_ibytes = ifac.ifa_ibytes;
260 ifaddr.ifa.if_opackets = ifac.ifa_opackets;
261 ifaddr.ifa.if_obytes = ifac.ifa_obytes;
262 for (cpu = 1; cpu < ncpus; ++cpu) {
263 struct ifaddr_container nifac;
265 if (kread(ifaddrcont_addr +
266 (cpu * sizeof(nifac)),
267 (char *)&nifac, sizeof(nifac))) {
271 ifaddr.ifa.if_ipackets += nifac.ifa_ipackets;
272 ifaddr.ifa.if_ibytes += nifac.ifa_ibytes;
273 ifaddr.ifa.if_opackets += nifac.ifa_opackets;
274 ifaddr.ifa.if_obytes += nifac.ifa_obytes;
277 #define CP(x) ((char *)(x))
278 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
280 sa = (struct sockaddr *)cp;
281 if (af != AF_UNSPEC && sa->sa_family != af) {
283 (u_long)TAILQ_NEXT(&ifac, ifa_link);
284 if (ifaddrcont_addr == 0) {
287 if (kread(ifaddrcont_addr,
288 (char *)&ifac, sizeof(ifac))) {
292 ifaddraddr = (u_long)ifac.ifa;
296 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
297 switch (sa->sa_family) {
299 printf("%-13.13s ", "none");
300 printf("%-15.15s ", "none");
303 sin = (struct sockaddr_in *)sa;
305 /* can't use inet_makeaddr because kernel
306 * keeps nets unshifted.
308 in = inet_makeaddr(ifaddr.in.ia_subnet,
310 printf("%-13.13s ", netname(in.s_addr,
311 ifaddr.in.ia_subnetmask));
314 netname(htonl(ifaddr.in.ia_subnet),
315 ifaddr.in.ia_subnetmask));
318 routename(sin->sin_addr.s_addr));
324 sin6 = (struct sockaddr_in6 *)sa;
326 netname6(&ifaddr.in6.ia_addr,
327 &ifaddr.in6.ia_prefixmask.sin6_addr));
331 ntop_buf, sizeof(ntop_buf)));
338 struct sockaddr_dl *sdl =
339 (struct sockaddr_dl *)sa;
341 cp = (char *)LLADDR(sdl);
343 sprintf(linknum, "<Link#%d>", sdl->sdl_index);
344 m = printf("%-11.11s ", linknum);
348 m = printf("(%d)", sa->sa_family);
349 for (cp = sa->sa_len + (char *)sa;
350 --cp > sa->sa_data && (*cp == 0);) {}
351 n = cp - sa->sa_data + 1;
355 m += printf("%02x%c", *cp++ & 0xff,
366 * Fixup the statistics for interfaces that
367 * update stats for their network addresses
370 opackets = ifaddr.ifa.if_opackets;
371 ipackets = ifaddr.ifa.if_ipackets;
372 obytes = ifaddr.ifa.if_obytes;
373 ibytes = ifaddr.ifa.if_ibytes;
377 (u_long)TAILQ_NEXT(&ifac, ifa_link);
378 if (ifaddrcont_addr == 0) {
381 if (kread(ifaddrcont_addr,
382 (char *)&ifac, sizeof(ifac))) {
385 ifaddraddr = (u_long)ifac.ifa;
390 show_stat("lu", 8, ipackets, link_layer|network_layer);
392 show_stat("lu", 5, ierrors, link_layer);
395 show_stat("lu", 10, ibytes, link_layer|network_layer);
398 show_stat("lu", 8, opackets, link_layer|network_layer);
400 show_stat("lu", 5, oerrors, link_layer);
403 show_stat("lu", 10, obytes, link_layer|network_layer);
406 show_stat("lu", 5, collisions, link_layer);
409 show_stat("d", 3, timer, link_layer);
413 show_stat("d", 3, drops, link_layer);
416 if (aflag && ifaddrfound) {
418 * Print family's multicast addresses
420 struct ifmultiaddr *multiaddr;
421 struct ifmultiaddr ifma;
424 struct sockaddr_in in;
426 struct sockaddr_in6 in6;
428 struct sockaddr_dl dl;
432 TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) {
433 if (kread((u_long)multiaddr, (char *)&ifma,
437 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
440 if (msa.sa.sa_family != sa->sa_family)
444 switch (msa.sa.sa_family) {
446 fmt = routename(msa.in.sin_addr.s_addr);
450 printf("%23s %-19.19s(refs: %d)\n", "",
459 switch (msa.dl.sdl_type) {
463 (struct ether_addr *)
470 printf("%23s %s\n", "", fmt);
477 SLIST_ENTRY(iftot) chain;
478 char ift_name[IFNAMSIZ]; /* interface name */
479 u_long ift_ip; /* input packets */
480 u_long ift_ie; /* input errors */
481 u_long ift_op; /* output packets */
482 u_long ift_oe; /* output errors */
483 u_long ift_co; /* collisions */
484 u_int ift_dr; /* drops */
485 u_long ift_ib; /* input bytes */
486 u_long ift_ob; /* output bytes */
489 u_char signalled; /* set if alarm goes off "early" */
492 * Print a running summary of interface statistics.
493 * Repeat display every interval1 seconds, showing statistics
494 * collected over that interval. Assumes that interval1 is non-zero.
495 * First line printed at top of screen is always cumulative.
496 * XXX - should be rewritten to use ifmib(4).
499 sidewaysintpr(unsigned interval1, u_long off, int ncpus)
503 struct ifnethead ifnethead;
504 struct ifdata_pcpu ifdata;
505 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
508 u_long interesting_off;
511 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
513 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
515 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
516 printf("malloc failed\n");
519 memset(iftot, 0, sizeof(struct iftot));
523 for (off = firstifnet, ip = iftot; off;) {
526 if (kread(off, (char *)&ifnet, sizeof ifnet))
528 strlcpy(name, ifnet.if_xname, sizeof(name));
529 if (interface && strcmp(name, interface) == 0) {
531 interesting_off = off;
533 snprintf(ip->ift_name, 16, "(%s)", name);
534 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
535 printf("malloc failed\n");
538 memset(ipn, 0, sizeof(struct iftot));
539 SLIST_NEXT(ip, chain) = ipn;
541 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
543 if ((total = malloc(sizeof(struct iftot))) == NULL) {
544 printf("malloc failed\n");
547 memset(total, 0, sizeof(struct iftot));
548 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
549 printf("malloc failed\n");
552 memset(sum, 0, sizeof(struct iftot));
555 (void)signal(SIGALRM, catchalarm);
557 (void)alarm(interval1);
560 printf("%17s %14s %16s", "input",
561 interesting ? interesting->ift_name : "(Total)", "output");
563 printf("%10s %5s %10s %10s %5s %10s %5s",
564 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
566 printf(" %5.5s", "drops");
571 if (interesting != NULL) {
573 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
578 ifdata_addr = (u_long)ifnet.if_data_pcpu;
579 if (kread(ifdata_addr, (char *)&ifdata, sizeof(ifdata))) {
580 printf("ifdata 1\n");
583 ifnet.if_ipackets = ifdata.ifd_ipackets;
584 ifnet.if_ierrors = ifdata.ifd_ierrors;
585 ifnet.if_ibytes = ifdata.ifd_ibytes;
586 ifnet.if_opackets = ifdata.ifd_opackets;
587 ifnet.if_oerrors = ifdata.ifd_oerrors;
588 ifnet.if_obytes = ifdata.ifd_obytes;
589 ifnet.if_collisions = ifdata.ifd_collisions;
591 for (cpu = 1; cpu < ncpus; ++cpu) {
592 if (kread(ifdata_addr + (cpu * sizeof(ifdata)),
593 (char *)&ifdata, sizeof(ifdata))) {
594 printf("ifdata 2\n");
597 ifnet.if_ipackets += ifdata.ifd_ipackets;
598 ifnet.if_ierrors += ifdata.ifd_ierrors;
599 ifnet.if_ibytes += ifdata.ifd_ibytes;
600 ifnet.if_opackets += ifdata.ifd_opackets;
601 ifnet.if_oerrors += ifdata.ifd_oerrors;
602 ifnet.if_obytes += ifdata.ifd_obytes;
603 ifnet.if_collisions += ifdata.ifd_collisions;
607 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
608 ifnet.if_ipackets - ip->ift_ip,
609 ifnet.if_ierrors - ip->ift_ie,
610 ifnet.if_ibytes - ip->ift_ib,
611 ifnet.if_opackets - ip->ift_op,
612 ifnet.if_oerrors - ip->ift_oe,
613 ifnet.if_obytes - ip->ift_ob,
614 ifnet.if_collisions - ip->ift_co);
616 printf(" %5u", 0 - ip->ift_dr);
618 ip->ift_ip = ifnet.if_ipackets;
619 ip->ift_ie = ifnet.if_ierrors;
620 ip->ift_ib = ifnet.if_ibytes;
621 ip->ift_op = ifnet.if_opackets;
622 ip->ift_oe = ifnet.if_oerrors;
623 ip->ift_ob = ifnet.if_obytes;
624 ip->ift_co = ifnet.if_collisions;
635 for (off = firstifnet, ip = iftot;
636 off && SLIST_NEXT(ip, chain) != NULL;
637 ip = SLIST_NEXT(ip, chain)) {
638 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
643 ifdata_addr = (u_long)ifnet.if_data_pcpu;
644 if (kread(ifdata_addr, (char *)&ifdata,
646 printf("ifdata 3\n");
649 ifnet.if_ipackets = ifdata.ifd_ipackets;
650 ifnet.if_ierrors = ifdata.ifd_ierrors;
651 ifnet.if_ibytes = ifdata.ifd_ibytes;
652 ifnet.if_opackets = ifdata.ifd_opackets;
653 ifnet.if_oerrors = ifdata.ifd_oerrors;
654 ifnet.if_obytes = ifdata.ifd_obytes;
655 ifnet.if_collisions = ifdata.ifd_collisions;
657 for (cpu = 1; cpu < ncpus; ++cpu) {
658 if (kread(ifdata_addr + (cpu * sizeof(ifdata)),
659 (char *)&ifdata, sizeof(ifdata))) {
660 printf("ifdata 2\n");
663 ifnet.if_ipackets += ifdata.ifd_ipackets;
664 ifnet.if_ierrors += ifdata.ifd_ierrors;
665 ifnet.if_ibytes += ifdata.ifd_ibytes;
666 ifnet.if_opackets += ifdata.ifd_opackets;
667 ifnet.if_oerrors += ifdata.ifd_oerrors;
668 ifnet.if_obytes += ifdata.ifd_obytes;
669 ifnet.if_collisions += ifdata.ifd_collisions;
673 * Don't double-count interfaces that are associated
674 * with bridges, they will be rolled up by the
675 * bridge. Errors and collisions are not rolled up.
677 if (ifnet.if_bridge) {
678 sum->ift_ie += ifnet.if_ierrors;
679 sum->ift_oe += ifnet.if_oerrors;
680 sum->ift_co += ifnet.if_collisions;
682 sum->ift_ip += ifnet.if_ipackets;
683 sum->ift_ie += ifnet.if_ierrors;
684 sum->ift_ib += ifnet.if_ibytes;
685 sum->ift_op += ifnet.if_opackets;
686 sum->ift_oe += ifnet.if_oerrors;
687 sum->ift_ob += ifnet.if_obytes;
688 sum->ift_co += ifnet.if_collisions;
691 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
694 /* %10lu %5lu %10lu %10lu %5lu %10lu %5lu */
695 show_stat("lu", 10, sum->ift_ip - total->ift_ip, 1);
696 show_stat("lu", 5+1, sum->ift_ie - total->ift_ie, 1);
697 show_stat("lu", 10+1, sum->ift_ib - total->ift_ib, 1);
698 show_stat("lu", 10+1, sum->ift_op - total->ift_op, 1);
699 show_stat("lu", 5+1, sum->ift_oe - total->ift_oe, 1);
700 show_stat("lu", 10+1, sum->ift_ob - total->ift_ob, 1);
701 show_stat("lu", 5+1, sum->ift_co - total->ift_co, 1);
703 show_stat("u", 5+1, sum->ift_dr - total->ift_dr, 1);
710 oldmask = sigblock(sigmask(SIGALRM));
716 (void)alarm(interval1);
727 * Called if an interval expires before sidewaysintpr has completed a loop.
728 * Sets a flag to not wait for the alarm.
731 catchalarm(int signo __unused)