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 * 4. 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 <netproto/ipx/ipx.h>
48 #include <netproto/ipx/ipx_if.h>
50 #include <netiso/iso.h>
51 #include <netiso/iso_var.h>
53 #include <arpa/inet.h>
66 static void sidewaysintpr (u_int, u_long, int);
67 static void catchalarm (int);
70 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
75 * Display a formatted value, or a '-' in the same space.
78 show_stat(const char *fmt, int width, u_long value, short showvalue)
82 /* Construct the format string */
84 sprintf(newfmt, "%%%d%s", width, fmt);
85 printf(newfmt, value);
87 sprintf(newfmt, "%%%ds", width);
95 * Print a description of the network interfaces.
98 intpr(int interval1, u_long ifnetaddr, void (*pfunc)(char *), u_long ncpusaddr)
101 struct ifdata_pcpu ifdata;
102 struct ifaddr_container ifac;
103 struct ifnethead ifnethead;
108 struct in6_ifaddr in6;
110 struct ipx_ifaddr ipx;
112 struct iso_ifaddr iso;
116 u_long ifaddrcont_addr;
128 struct sockaddr *sa = NULL;
134 if (kread(ncpusaddr, (char *)&ncpus, sizeof(ncpus)))
137 if (ifnetaddr == 0) {
138 printf("ifnet: symbol not defined\n");
142 sidewaysintpr((unsigned)interval1, ifnetaddr, ncpus);
145 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
147 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
148 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
152 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
153 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
155 printf(" %10.10s","Ibytes");
156 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
158 printf(" %10.10s","Obytes");
159 printf(" %5s", "Coll");
161 printf(" %s", "Time");
163 printf(" %s", "Drop");
168 while (ifnetaddr || ifaddraddr) {
169 struct sockaddr_in *sin;
171 struct sockaddr_in6 *sin6;
179 if (ifaddraddr == 0) {
180 struct ifaddrhead head;
182 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
184 strlcpy(name, ifnet.if_xname, sizeof(name));
185 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
186 if (interface != 0 && (strcmp(name, interface) != 0))
188 cp = strchr(name, '\0');
195 if ((ifnet.if_flags&IFF_UP) == 0)
199 if (kread((u_long)ifnet.if_addrheads,
200 (char *)&head, sizeof(head)))
204 (u_long)TAILQ_FIRST(&head);
205 if (ifaddrcont_addr == 0) {
208 if (kread(ifaddrcont_addr, (char *)&ifac,
211 ifaddraddr = (u_long)ifac.ifa;
214 ifaddrfound = ifaddraddr;
217 * Get the interface stats. These may get
218 * overriden below on a per-interface basis.
220 ifdataaddr = (u_long)ifnet.if_data_pcpu;
221 if (kread(ifdataaddr, (char *)&ifdata, sizeof(ifdata)))
223 opackets = ifdata.ifd_opackets;
224 ipackets = ifdata.ifd_ipackets;
225 obytes = ifdata.ifd_obytes;
226 ibytes = ifdata.ifd_ibytes;
227 oerrors = ifdata.ifd_oerrors;
228 ierrors = ifdata.ifd_ierrors;
229 collisions = ifdata.ifd_collisions;
231 for (cpu = 1; cpu < ncpus; ++cpu) {
232 if (kread(ifdataaddr + (cpu * sizeof(ifdata)),
233 (char *)&ifdata, sizeof(ifdata)))
235 opackets += ifdata.ifd_opackets;
236 ipackets += ifdata.ifd_ipackets;
237 obytes += ifdata.ifd_obytes;
238 ibytes += ifdata.ifd_ibytes;
239 oerrors += ifdata.ifd_oerrors;
240 ierrors += ifdata.ifd_ierrors;
241 collisions += ifdata.ifd_collisions;
244 timer = ifnet.if_timer;
247 if (ifaddraddr == 0) {
248 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
249 printf("%-13.13s ", "none");
250 printf("%-15.15s ", "none");
252 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
257 ifaddr.ifa.if_ipackets = ifac.ifa_ipackets;
258 ifaddr.ifa.if_ibytes = ifac.ifa_ibytes;
259 ifaddr.ifa.if_opackets = ifac.ifa_opackets;
260 ifaddr.ifa.if_obytes = ifac.ifa_obytes;
261 for (cpu = 1; cpu < ncpus; ++cpu) {
262 struct ifaddr_container nifac;
264 if (kread(ifaddrcont_addr +
265 (cpu * sizeof(nifac)),
266 (char *)&nifac, sizeof(nifac))) {
270 ifaddr.ifa.if_ipackets += nifac.ifa_ipackets;
271 ifaddr.ifa.if_ibytes += nifac.ifa_ibytes;
272 ifaddr.ifa.if_opackets += nifac.ifa_opackets;
273 ifaddr.ifa.if_obytes += nifac.ifa_obytes;
276 #define CP(x) ((char *)(x))
277 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
279 sa = (struct sockaddr *)cp;
280 if (af != AF_UNSPEC && sa->sa_family != af) {
282 (u_long)TAILQ_NEXT(&ifac, ifa_link);
283 if (ifaddrcont_addr == 0) {
286 if (kread(ifaddrcont_addr,
287 (char *)&ifac, sizeof(ifac))) {
291 ifaddraddr = (u_long)ifac.ifa;
295 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
296 switch (sa->sa_family) {
298 printf("%-13.13s ", "none");
299 printf("%-15.15s ", "none");
302 sin = (struct sockaddr_in *)sa;
304 /* can't use inet_makeaddr because kernel
305 * keeps nets unshifted.
307 in = inet_makeaddr(ifaddr.in.ia_subnet,
309 printf("%-13.13s ", netname(in.s_addr,
310 ifaddr.in.ia_subnetmask));
313 netname(htonl(ifaddr.in.ia_subnet),
314 ifaddr.in.ia_subnetmask));
317 routename(sin->sin_addr.s_addr));
323 sin6 = (struct sockaddr_in6 *)sa;
325 netname6(&ifaddr.in6.ia_addr,
326 &ifaddr.in6.ia_prefixmask.sin6_addr));
330 ntop_buf, sizeof(ntop_buf)));
337 struct sockaddr_ipx *sipx =
338 (struct sockaddr_ipx *)sa;
342 *(union ipx_net *) &net = sipx->sipx_addr.x_net;
343 sprintf(netnum, "%lx", (u_long)ntohl(net));
344 printf("ipx:%-8s ", netnum);
345 /* printf("ipx:%-8s ", netname(net, 0L)); */
347 ipx_phost((struct sockaddr *)sipx));
353 struct sockaddr_dl *sdl =
354 (struct sockaddr_dl *)sa;
356 cp = (char *)LLADDR(sdl);
358 sprintf(linknum, "<Link#%d>", sdl->sdl_index);
359 m = printf("%-11.11s ", linknum);
363 m = printf("(%d)", sa->sa_family);
364 for (cp = sa->sa_len + (char *)sa;
365 --cp > sa->sa_data && (*cp == 0);) {}
366 n = cp - sa->sa_data + 1;
370 m += printf("%02x%c", *cp++ & 0xff,
381 * Fixup the statistics for interfaces that
382 * update stats for their network addresses
385 opackets = ifaddr.ifa.if_opackets;
386 ipackets = ifaddr.ifa.if_ipackets;
387 obytes = ifaddr.ifa.if_obytes;
388 ibytes = ifaddr.ifa.if_ibytes;
392 (u_long)TAILQ_NEXT(&ifac, ifa_link);
393 if (ifaddrcont_addr == 0) {
396 if (kread(ifaddrcont_addr,
397 (char *)&ifac, sizeof(ifac))) {
400 ifaddraddr = (u_long)ifac.ifa;
405 show_stat("lu", 8, ipackets, link_layer|network_layer);
407 show_stat("lu", 5, ierrors, link_layer);
410 show_stat("lu", 10, ibytes, link_layer|network_layer);
413 show_stat("lu", 8, opackets, link_layer|network_layer);
415 show_stat("lu", 5, oerrors, link_layer);
418 show_stat("lu", 10, obytes, link_layer|network_layer);
421 show_stat("lu", 5, collisions, link_layer);
424 show_stat("d", 3, timer, link_layer);
428 show_stat("d", 3, drops, link_layer);
431 if (aflag && ifaddrfound) {
433 * Print family's multicast addresses
435 struct ifmultiaddr *multiaddr;
436 struct ifmultiaddr ifma;
439 struct sockaddr_in in;
441 struct sockaddr_in6 in6;
443 struct sockaddr_dl dl;
447 TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) {
448 if (kread((u_long)multiaddr, (char *)&ifma,
452 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
455 if (msa.sa.sa_family != sa->sa_family)
459 switch (msa.sa.sa_family) {
461 fmt = routename(msa.in.sin_addr.s_addr);
465 printf("%23s %-19.19s(refs: %d)\n", "",
474 switch (msa.dl.sdl_type) {
478 (struct ether_addr *)
485 printf("%23s %s\n", "", fmt);
492 SLIST_ENTRY(iftot) chain;
493 char ift_name[IFNAMSIZ]; /* interface name */
494 u_long ift_ip; /* input packets */
495 u_long ift_ie; /* input errors */
496 u_long ift_op; /* output packets */
497 u_long ift_oe; /* output errors */
498 u_long ift_co; /* collisions */
499 u_int ift_dr; /* drops */
500 u_long ift_ib; /* input bytes */
501 u_long ift_ob; /* output bytes */
504 u_char signalled; /* set if alarm goes off "early" */
507 * Print a running summary of interface statistics.
508 * Repeat display every interval1 seconds, showing statistics
509 * collected over that interval. Assumes that interval1 is non-zero.
510 * First line printed at top of screen is always cumulative.
511 * XXX - should be rewritten to use ifmib(4).
514 sidewaysintpr(unsigned interval1, u_long off, int ncpus)
518 struct ifnethead ifnethead;
519 struct ifdata_pcpu ifdata;
520 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
523 u_long interesting_off;
526 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
528 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
530 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
531 printf("malloc failed\n");
534 memset(iftot, 0, sizeof(struct iftot));
538 for (off = firstifnet, ip = iftot; off;) {
541 if (kread(off, (char *)&ifnet, sizeof ifnet))
543 strlcpy(name, ifnet.if_xname, sizeof(name));
544 if (interface && strcmp(name, interface) == 0) {
546 interesting_off = off;
548 snprintf(ip->ift_name, 16, "(%s)", name);
549 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
550 printf("malloc failed\n");
553 memset(ipn, 0, sizeof(struct iftot));
554 SLIST_NEXT(ip, chain) = ipn;
556 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
558 if ((total = malloc(sizeof(struct iftot))) == NULL) {
559 printf("malloc failed\n");
562 memset(total, 0, sizeof(struct iftot));
563 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
564 printf("malloc failed\n");
567 memset(sum, 0, sizeof(struct iftot));
570 (void)signal(SIGALRM, catchalarm);
572 (void)alarm(interval1);
575 printf("%17s %14s %16s", "input",
576 interesting ? interesting->ift_name : "(Total)", "output");
578 printf("%10s %5s %10s %10s %5s %10s %5s",
579 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
581 printf(" %5.5s", "drops");
586 if (interesting != NULL) {
588 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
593 ifdata_addr = (u_long)ifnet.if_data_pcpu;
594 if (kread(ifdata_addr, (char *)&ifdata, sizeof(ifdata))) {
595 printf("ifdata 1\n");
598 ifnet.if_ipackets = ifdata.ifd_ipackets;
599 ifnet.if_ierrors = ifdata.ifd_ierrors;
600 ifnet.if_ibytes = ifdata.ifd_ibytes;
601 ifnet.if_opackets = ifdata.ifd_opackets;
602 ifnet.if_oerrors = ifdata.ifd_oerrors;
603 ifnet.if_obytes = ifdata.ifd_obytes;
604 ifnet.if_collisions = ifdata.ifd_collisions;
606 for (cpu = 1; cpu < ncpus; ++cpu) {
607 if (kread(ifdata_addr + (cpu * sizeof(ifdata)),
608 (char *)&ifdata, sizeof(ifdata))) {
609 printf("ifdata 2\n");
612 ifnet.if_ipackets += ifdata.ifd_ipackets;
613 ifnet.if_ierrors += ifdata.ifd_ierrors;
614 ifnet.if_ibytes += ifdata.ifd_ibytes;
615 ifnet.if_opackets += ifdata.ifd_opackets;
616 ifnet.if_oerrors += ifdata.ifd_oerrors;
617 ifnet.if_obytes += ifdata.ifd_obytes;
618 ifnet.if_collisions += ifdata.ifd_collisions;
622 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
623 ifnet.if_ipackets - ip->ift_ip,
624 ifnet.if_ierrors - ip->ift_ie,
625 ifnet.if_ibytes - ip->ift_ib,
626 ifnet.if_opackets - ip->ift_op,
627 ifnet.if_oerrors - ip->ift_oe,
628 ifnet.if_obytes - ip->ift_ob,
629 ifnet.if_collisions - ip->ift_co);
631 printf(" %5u", 0 - ip->ift_dr);
633 ip->ift_ip = ifnet.if_ipackets;
634 ip->ift_ie = ifnet.if_ierrors;
635 ip->ift_ib = ifnet.if_ibytes;
636 ip->ift_op = ifnet.if_opackets;
637 ip->ift_oe = ifnet.if_oerrors;
638 ip->ift_ob = ifnet.if_obytes;
639 ip->ift_co = ifnet.if_collisions;
650 for (off = firstifnet, ip = iftot;
651 off && SLIST_NEXT(ip, chain) != NULL;
652 ip = SLIST_NEXT(ip, chain)) {
653 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
658 ifdata_addr = (u_long)ifnet.if_data_pcpu;
659 if (kread(ifdata_addr, (char *)&ifdata,
661 printf("ifdata 3\n");
664 ifnet.if_ipackets = ifdata.ifd_ipackets;
665 ifnet.if_ierrors = ifdata.ifd_ierrors;
666 ifnet.if_ibytes = ifdata.ifd_ibytes;
667 ifnet.if_opackets = ifdata.ifd_opackets;
668 ifnet.if_oerrors = ifdata.ifd_oerrors;
669 ifnet.if_obytes = ifdata.ifd_obytes;
670 ifnet.if_collisions = ifdata.ifd_collisions;
672 for (cpu = 1; cpu < ncpus; ++cpu) {
673 if (kread(ifdata_addr + (cpu * sizeof(ifdata)),
674 (char *)&ifdata, sizeof(ifdata))) {
675 printf("ifdata 2\n");
678 ifnet.if_ipackets += ifdata.ifd_ipackets;
679 ifnet.if_ierrors += ifdata.ifd_ierrors;
680 ifnet.if_ibytes += ifdata.ifd_ibytes;
681 ifnet.if_opackets += ifdata.ifd_opackets;
682 ifnet.if_oerrors += ifdata.ifd_oerrors;
683 ifnet.if_obytes += ifdata.ifd_obytes;
684 ifnet.if_collisions += ifdata.ifd_collisions;
687 sum->ift_ip += ifnet.if_ipackets;
688 sum->ift_ie += ifnet.if_ierrors;
689 sum->ift_ib += ifnet.if_ibytes;
690 sum->ift_op += ifnet.if_opackets;
691 sum->ift_oe += ifnet.if_oerrors;
692 sum->ift_ob += ifnet.if_obytes;
693 sum->ift_co += ifnet.if_collisions;
695 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
698 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
699 sum->ift_ip - total->ift_ip,
700 sum->ift_ie - total->ift_ie,
701 sum->ift_ib - total->ift_ib,
702 sum->ift_op - total->ift_op,
703 sum->ift_oe - total->ift_oe,
704 sum->ift_ob - total->ift_ob,
705 sum->ift_co - total->ift_co);
707 printf(" %5u", sum->ift_dr - total->ift_dr);
714 oldmask = sigblock(sigmask(SIGALRM));
720 (void)alarm(interval1);
731 * Called if an interval expires before sidewaysintpr has completed a loop.
732 * Sets a flag to not wait for the alarm.
735 catchalarm(int signo __unused)