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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)if.c 8.3 (Berkeley) 4/28/95
34 * $FreeBSD: src/usr.bin/netstat/if.c,v 1.32.2.9 2001/09/17 14:35:46 ru Exp $
37 #define _KERNEL_STRUCTURES
38 #include <sys/param.h>
39 #include <sys/protosw.h>
40 #include <sys/socket.h>
41 #include <sys/sysctl.h>
45 #include <net/if_var.h>
46 #include <net/if_dl.h>
47 #include <net/if_types.h>
48 #include <net/ethernet.h>
49 #include <netinet/in.h>
50 #include <netinet/in_var.h>
51 #include <netproto/ipx/ipx.h>
52 #include <netproto/ipx/ipx_if.h>
54 #include <netiso/iso.h>
55 #include <netiso/iso_var.h>
57 #include <arpa/inet.h>
70 static void sidewaysintpr (u_int, u_long);
71 static void catchalarm (int);
74 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
79 * Display a formatted value, or a '-' in the same space.
82 show_stat(const char *fmt, int width, u_long value, short showvalue)
86 /* Construct the format string */
88 sprintf(newfmt, "%%%d%s", width, fmt);
89 printf(newfmt, value);
91 sprintf(newfmt, "%%%ds", width);
99 * Print a description of the network interfaces.
102 intpr(int interval1, u_long ifnetaddr, void (*pfunc)(char *), u_long ncpusaddr)
105 struct ifdata_pcpu ifdata;
106 struct ifaddr_container ifac;
107 struct ifnethead ifnethead;
112 struct in6_ifaddr in6;
114 struct ipx_ifaddr ipx;
116 struct iso_ifaddr iso;
120 u_long ifaddrcont_addr;
132 struct sockaddr *sa = NULL;
138 if (kread(ncpusaddr, (char *)&ncpus, sizeof(ncpus)))
141 if (ifnetaddr == 0) {
142 printf("ifnet: symbol not defined\n");
146 sidewaysintpr((unsigned)interval1, ifnetaddr);
149 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
151 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
152 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
156 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
157 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
159 printf(" %10.10s","Ibytes");
160 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
162 printf(" %10.10s","Obytes");
163 printf(" %5s", "Coll");
165 printf(" %s", "Time");
167 printf(" %s", "Drop");
172 while (ifnetaddr || ifaddraddr) {
173 struct sockaddr_in *sin;
175 struct sockaddr_in6 *sin6;
183 if (ifaddraddr == 0) {
184 struct ifaddrhead head;
186 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
188 strlcpy(name, ifnet.if_xname, sizeof(name));
189 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
190 if (interface != 0 && (strcmp(name, interface) != 0))
192 cp = strchr(name, '\0');
199 if ((ifnet.if_flags&IFF_UP) == 0)
203 if (kread((u_long)ifnet.if_addrheads,
204 (char *)&head, sizeof(head)))
208 (u_long)TAILQ_FIRST(&head);
209 if (ifaddrcont_addr == 0) {
212 if (kread(ifaddrcont_addr, (char *)&ifac,
215 ifaddraddr = (u_long)ifac.ifa;
218 ifaddrfound = ifaddraddr;
221 * Get the interface stats. These may get
222 * overriden below on a per-interface basis.
224 ifdataaddr = (u_long)ifnet.if_data_pcpu;
225 if (kread(ifdataaddr, (char *)&ifdata, sizeof(ifdata)))
227 opackets = ifdata.ifd_opackets;
228 ipackets = ifdata.ifd_ipackets;
229 obytes = ifdata.ifd_obytes;
230 ibytes = ifdata.ifd_ibytes;
231 oerrors = ifdata.ifd_oerrors;
232 ierrors = ifdata.ifd_ierrors;
233 collisions = ifdata.ifd_collisions;
235 for (cpu = 1; cpu < ncpus; ++cpu) {
236 if (kread(ifdataaddr + (cpu * sizeof(ifdata)),
237 (char *)&ifdata, sizeof(ifdata)))
239 opackets += ifdata.ifd_opackets;
240 ipackets += ifdata.ifd_ipackets;
241 obytes += ifdata.ifd_obytes;
242 ibytes += ifdata.ifd_ibytes;
243 oerrors += ifdata.ifd_oerrors;
244 ierrors += ifdata.ifd_ierrors;
245 collisions += ifdata.ifd_collisions;
248 timer = ifnet.if_timer;
251 if (ifaddraddr == 0) {
252 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
253 printf("%-13.13s ", "none");
254 printf("%-15.15s ", "none");
256 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
261 ifaddr.ifa.if_ipackets = ifac.ifa_ipackets;
262 ifaddr.ifa.if_ibytes = ifac.ifa_ibytes;
263 ifaddr.ifa.if_opackets = ifac.ifa_opackets;
264 ifaddr.ifa.if_obytes = ifac.ifa_obytes;
265 for (cpu = 1; cpu < ncpus; ++cpu) {
266 struct ifaddr_container nifac;
268 if (kread(ifaddrcont_addr +
269 (cpu * sizeof(nifac)),
270 (char *)&nifac, sizeof(nifac))) {
274 ifaddr.ifa.if_ipackets += nifac.ifa_ipackets;
275 ifaddr.ifa.if_ibytes += nifac.ifa_ibytes;
276 ifaddr.ifa.if_opackets += nifac.ifa_opackets;
277 ifaddr.ifa.if_obytes += nifac.ifa_obytes;
280 #define CP(x) ((char *)(x))
281 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
283 sa = (struct sockaddr *)cp;
284 if (af != AF_UNSPEC && sa->sa_family != af) {
286 (u_long)TAILQ_NEXT(&ifac, ifa_link);
287 if (ifaddrcont_addr == 0) {
290 if (kread(ifaddrcont_addr,
291 (char *)&ifac, sizeof(ifac))) {
295 ifaddraddr = (u_long)ifac.ifa;
299 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
300 switch (sa->sa_family) {
302 printf("%-13.13s ", "none");
303 printf("%-15.15s ", "none");
306 sin = (struct sockaddr_in *)sa;
308 /* can't use inet_makeaddr because kernel
309 * keeps nets unshifted.
311 in = inet_makeaddr(ifaddr.in.ia_subnet,
313 printf("%-13.13s ", netname(in.s_addr,
314 ifaddr.in.ia_subnetmask));
317 netname(htonl(ifaddr.in.ia_subnet),
318 ifaddr.in.ia_subnetmask));
321 routename(sin->sin_addr.s_addr));
327 sin6 = (struct sockaddr_in6 *)sa;
329 netname6(&ifaddr.in6.ia_addr,
330 &ifaddr.in6.ia_prefixmask.sin6_addr));
334 ntop_buf, sizeof(ntop_buf)));
341 struct sockaddr_ipx *sipx =
342 (struct sockaddr_ipx *)sa;
346 *(union ipx_net *) &net = sipx->sipx_addr.x_net;
347 sprintf(netnum, "%lx", (u_long)ntohl(net));
348 printf("ipx:%-8s ", netnum);
349 /* printf("ipx:%-8s ", netname(net, 0L)); */
351 ipx_phost((struct sockaddr *)sipx));
357 struct sockaddr_dl *sdl =
358 (struct sockaddr_dl *)sa;
360 cp = (char *)LLADDR(sdl);
362 sprintf(linknum, "<Link#%d>", sdl->sdl_index);
363 m = printf("%-11.11s ", linknum);
367 m = printf("(%d)", sa->sa_family);
368 for (cp = sa->sa_len + (char *)sa;
369 --cp > sa->sa_data && (*cp == 0);) {}
370 n = cp - sa->sa_data + 1;
374 m += printf("%02x%c", *cp++ & 0xff,
385 * Fixup the statistics for interfaces that
386 * update stats for their network addresses
389 opackets = ifaddr.ifa.if_opackets;
390 ipackets = ifaddr.ifa.if_ipackets;
391 obytes = ifaddr.ifa.if_obytes;
392 ibytes = ifaddr.ifa.if_ibytes;
396 (u_long)TAILQ_NEXT(&ifac, ifa_link);
397 if (ifaddrcont_addr == 0) {
400 if (kread(ifaddrcont_addr,
401 (char *)&ifac, sizeof(ifac))) {
404 ifaddraddr = (u_long)ifac.ifa;
409 show_stat("lu", 8, ipackets, link_layer|network_layer);
411 show_stat("lu", 5, ierrors, link_layer);
414 show_stat("lu", 10, ibytes, link_layer|network_layer);
417 show_stat("lu", 8, opackets, link_layer|network_layer);
419 show_stat("lu", 5, oerrors, link_layer);
422 show_stat("lu", 10, obytes, link_layer|network_layer);
425 show_stat("lu", 5, collisions, link_layer);
428 show_stat("d", 3, timer, link_layer);
432 show_stat("d", 3, drops, link_layer);
435 if (aflag && ifaddrfound) {
437 * Print family's multicast addresses
439 struct ifmultiaddr *multiaddr;
440 struct ifmultiaddr ifma;
443 struct sockaddr_in in;
445 struct sockaddr_in6 in6;
447 struct sockaddr_dl dl;
451 TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) {
452 if (kread((u_long)multiaddr, (char *)&ifma,
456 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
459 if (msa.sa.sa_family != sa->sa_family)
463 switch (msa.sa.sa_family) {
465 fmt = routename(msa.in.sin_addr.s_addr);
469 printf("%23s %-19.19s(refs: %d)\n", "",
478 switch (msa.dl.sdl_type) {
482 (struct ether_addr *)
489 printf("%23s %s\n", "", fmt);
496 SLIST_ENTRY(iftot) chain;
497 char ift_name[IFNAMSIZ]; /* interface name */
498 u_long ift_ip; /* input packets */
499 u_long ift_ie; /* input errors */
500 u_long ift_op; /* output packets */
501 u_long ift_oe; /* output errors */
502 u_long ift_co; /* collisions */
503 u_int ift_dr; /* drops */
504 u_long ift_ib; /* input bytes */
505 u_long ift_ob; /* output bytes */
508 u_char signalled; /* set if alarm goes off "early" */
511 * Print a running summary of interface statistics.
512 * Repeat display every interval1 seconds, showing statistics
513 * collected over that interval. Assumes that interval1 is non-zero.
514 * First line printed at top of screen is always cumulative.
515 * XXX - should be rewritten to use ifmib(4).
518 sidewaysintpr(unsigned interval1, u_long off)
522 struct ifnethead ifnethead;
523 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
526 u_long interesting_off;
528 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
530 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
532 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
533 printf("malloc failed\n");
536 memset(iftot, 0, sizeof(struct iftot));
540 for (off = firstifnet, ip = iftot; off;) {
543 if (kread(off, (char *)&ifnet, sizeof ifnet))
545 strlcpy(name, ifnet.if_xname, sizeof(name));
546 if (interface && strcmp(name, interface) == 0) {
548 interesting_off = off;
550 snprintf(ip->ift_name, 16, "(%s)", name);
551 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
552 printf("malloc failed\n");
555 memset(ipn, 0, sizeof(struct iftot));
556 SLIST_NEXT(ip, chain) = ipn;
558 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
560 if ((total = malloc(sizeof(struct iftot))) == NULL) {
561 printf("malloc failed\n");
564 memset(total, 0, sizeof(struct iftot));
565 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
566 printf("malloc failed\n");
569 memset(sum, 0, sizeof(struct iftot));
572 (void)signal(SIGALRM, catchalarm);
574 (void)alarm(interval1);
577 printf("%17s %14s %16s", "input",
578 interesting ? interesting->ift_name : "(Total)", "output");
580 printf("%10s %5s %10s %10s %5s %10s %5s",
581 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
583 printf(" %5.5s", "drops");
588 if (interesting != NULL) {
590 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
595 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
596 ifnet.if_ipackets - ip->ift_ip,
597 ifnet.if_ierrors - ip->ift_ie,
598 ifnet.if_ibytes - ip->ift_ib,
599 ifnet.if_opackets - ip->ift_op,
600 ifnet.if_oerrors - ip->ift_oe,
601 ifnet.if_obytes - ip->ift_ob,
602 ifnet.if_collisions - ip->ift_co);
604 printf(" %5u", 0 - ip->ift_dr);
606 ip->ift_ip = ifnet.if_ipackets;
607 ip->ift_ie = ifnet.if_ierrors;
608 ip->ift_ib = ifnet.if_ibytes;
609 ip->ift_op = ifnet.if_opackets;
610 ip->ift_oe = ifnet.if_oerrors;
611 ip->ift_ob = ifnet.if_obytes;
612 ip->ift_co = ifnet.if_collisions;
623 for (off = firstifnet, ip = iftot;
624 off && SLIST_NEXT(ip, chain) != NULL;
625 ip = SLIST_NEXT(ip, chain)) {
626 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
630 sum->ift_ip += ifnet.if_ipackets;
631 sum->ift_ie += ifnet.if_ierrors;
632 sum->ift_ib += ifnet.if_ibytes;
633 sum->ift_op += ifnet.if_opackets;
634 sum->ift_oe += ifnet.if_oerrors;
635 sum->ift_ob += ifnet.if_obytes;
636 sum->ift_co += ifnet.if_collisions;
638 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
641 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
642 sum->ift_ip - total->ift_ip,
643 sum->ift_ie - total->ift_ie,
644 sum->ift_ib - total->ift_ib,
645 sum->ift_op - total->ift_op,
646 sum->ift_oe - total->ift_oe,
647 sum->ift_ob - total->ift_ob,
648 sum->ift_co - total->ift_co);
650 printf(" %5u", sum->ift_dr - total->ift_dr);
657 oldmask = sigblock(sigmask(SIGALRM));
663 (void)alarm(interval1);
674 * Called if an interval expires before sidewaysintpr has completed a loop.
675 * Sets a flag to not wait for the alarm.
678 catchalarm(int signo __unused)