2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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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.
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18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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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 $
35 * $DragonFly: src/usr.bin/netstat/if.c,v 1.12 2008/03/07 11:34:21 sephe Exp $
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 <netproto/ns/ns.h>
55 #include <netproto/ns/ns_if.h>
58 #include <netiso/iso.h>
59 #include <netiso/iso_var.h>
61 #include <arpa/inet.h>
74 static void sidewaysintpr (u_int, u_long);
75 static void catchalarm (int);
78 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
83 * Display a formatted value, or a '-' in the same space.
86 show_stat(const char *fmt, int width, u_long value, short showvalue)
90 /* Construct the format string */
92 sprintf(newfmt, "%%%d%s", width, fmt);
93 printf(newfmt, value);
95 sprintf(newfmt, "%%%ds", width);
103 * Print a description of the network interfaces.
106 intpr(int interval1, u_long ifnetaddr, void (*pfunc)(char *))
109 struct ifaddr_container ifac;
110 struct ifnethead ifnethead;
115 struct in6_ifaddr in6;
117 struct ipx_ifaddr ipx;
122 struct iso_ifaddr iso;
126 u_long ifaddrcont_addr;
138 struct sockaddr *sa = NULL;
143 if (ifnetaddr == 0) {
144 printf("ifnet: symbol not defined\n");
148 sidewaysintpr((unsigned)interval1, ifnetaddr);
151 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
153 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
154 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
158 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
159 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
161 printf(" %10.10s","Ibytes");
162 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
164 printf(" %10.10s","Obytes");
165 printf(" %5s", "Coll");
167 printf(" %s", "Time");
169 printf(" %s", "Drop");
173 while (ifnetaddr || ifaddraddr) {
174 struct sockaddr_in *sin;
176 struct sockaddr_in6 *sin6;
184 if (ifaddraddr == 0) {
185 struct ifaddrhead head;
187 ifnetfound = ifnetaddr;
188 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
190 strlcpy(name, ifnet.if_xname, sizeof(name));
191 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
192 if (interface != 0 && (strcmp(name, interface) != 0))
194 cp = strchr(name, '\0');
201 if ((ifnet.if_flags&IFF_UP) == 0)
205 if (kread((u_long)ifnet.if_addrheads,
206 (char *)&head, sizeof(head)))
210 (u_long)TAILQ_FIRST(&head);
211 if (ifaddrcont_addr == 0) {
214 if (kread(ifaddrcont_addr, (char *)&ifac,
217 ifaddraddr = (u_long)ifac.ifa;
220 ifaddrfound = ifaddraddr;
223 * Get the interface stats. These may get
224 * overriden below on a per-interface basis.
226 opackets = ifnet.if_opackets;
227 ipackets = ifnet.if_ipackets;
228 obytes = ifnet.if_obytes;
229 ibytes = ifnet.if_ibytes;
230 oerrors = ifnet.if_oerrors;
231 ierrors = ifnet.if_ierrors;
232 collisions = ifnet.if_collisions;
233 timer = ifnet.if_timer;
234 drops = ifnet.if_snd.ifq_drops;
236 if (ifaddraddr == 0) {
237 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
238 printf("%-13.13s ", "none");
239 printf("%-15.15s ", "none");
241 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
245 #define CP(x) ((char *)(x))
246 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
248 sa = (struct sockaddr *)cp;
249 if (af != AF_UNSPEC && sa->sa_family != af) {
251 (u_long)TAILQ_NEXT(&ifac, ifa_link);
252 if (ifaddrcont_addr == 0) {
255 if (kread(ifaddrcont_addr,
256 (char *)&ifac, sizeof(ifac))) {
260 ifaddraddr = (u_long)ifac.ifa;
264 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
265 switch (sa->sa_family) {
267 printf("%-13.13s ", "none");
268 printf("%-15.15s ", "none");
271 sin = (struct sockaddr_in *)sa;
273 /* can't use inet_makeaddr because kernel
274 * keeps nets unshifted.
276 in = inet_makeaddr(ifaddr.in.ia_subnet,
278 printf("%-13.13s ", netname(in.s_addr,
279 ifaddr.in.ia_subnetmask));
282 netname(htonl(ifaddr.in.ia_subnet),
283 ifaddr.in.ia_subnetmask));
286 routename(sin->sin_addr.s_addr));
292 sin6 = (struct sockaddr_in6 *)sa;
294 netname6(&ifaddr.in6.ia_addr,
295 &ifaddr.in6.ia_prefixmask.sin6_addr));
299 ntop_buf, sizeof(ntop_buf)));
306 struct sockaddr_ipx *sipx =
307 (struct sockaddr_ipx *)sa;
311 *(union ipx_net *) &net = sipx->sipx_addr.x_net;
312 sprintf(netnum, "%lx", (u_long)ntohl(net));
313 printf("ipx:%-8s ", netnum);
314 /* printf("ipx:%-8s ", netname(net, 0L)); */
316 ipx_phost((struct sockaddr *)sipx));
321 printf("atalk:%-12.12s ",atalk_print(sa,0x10) );
322 printf("%-9.9s ",atalk_print(sa,0x0b) );
327 struct sockaddr_ns *sns =
328 (struct sockaddr_ns *)sa;
332 *(union ns_net *) &net = sns->sns_addr.x_net;
333 sprintf(netnum, "%lxH", ntohl(net));
335 printf("ns:%-8s ", netnum);
337 ns_phost((struct sockaddr *)sns));
343 struct sockaddr_dl *sdl =
344 (struct sockaddr_dl *)sa;
346 cp = (char *)LLADDR(sdl);
348 sprintf(linknum, "<Link#%d>", sdl->sdl_index);
349 m = printf("%-11.11s ", linknum);
353 m = printf("(%d)", sa->sa_family);
354 for (cp = sa->sa_len + (char *)sa;
355 --cp > sa->sa_data && (*cp == 0);) {}
356 n = cp - sa->sa_data + 1;
360 m += printf("%02x%c", *cp++ & 0xff,
371 * Fixup the statistics for interfaces that
372 * update stats for their network addresses
375 opackets = ifaddr.in.ia_ifa.if_opackets;
376 ipackets = ifaddr.in.ia_ifa.if_ipackets;
377 obytes = ifaddr.in.ia_ifa.if_obytes;
378 ibytes = ifaddr.in.ia_ifa.if_ibytes;
382 (u_long)TAILQ_NEXT(&ifac, ifa_link);
383 if (ifaddrcont_addr == 0) {
386 if (kread(ifaddrcont_addr,
387 (char *)&ifac, sizeof(ifac))) {
390 ifaddraddr = (u_long)ifac.ifa;
395 show_stat("lu", 8, ipackets, link_layer|network_layer);
397 show_stat("lu", 5, ierrors, link_layer);
400 show_stat("lu", 10, ibytes, link_layer|network_layer);
403 show_stat("lu", 8, opackets, link_layer|network_layer);
405 show_stat("lu", 5, oerrors, link_layer);
408 show_stat("lu", 10, obytes, link_layer|network_layer);
411 show_stat("lu", 5, collisions, link_layer);
414 show_stat("d", 3, timer, link_layer);
418 show_stat("d", 3, drops, link_layer);
421 if (aflag && ifaddrfound) {
423 * Print family's multicast addresses
426 struct ifmultiaddr ifma;
429 struct sockaddr_in in;
431 struct sockaddr_in6 in6;
433 struct sockaddr_dl dl;
437 for(multiaddr = (u_long)ifnet.if_multiaddrs.lh_first;
439 multiaddr = (u_long)ifma.ifma_link.le_next) {
440 if (kread(multiaddr, (char *)&ifma,
443 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
446 if (msa.sa.sa_family != sa->sa_family)
450 switch (msa.sa.sa_family) {
452 fmt = routename(msa.in.sin_addr.s_addr);
456 printf("%23s %-19.19s(refs: %d)\n", "",
465 switch (msa.dl.sdl_type) {
469 (struct ether_addr *)
476 printf("%23s %s\n", "", fmt);
483 SLIST_ENTRY(iftot) chain;
484 char ift_name[IFNAMSIZ]; /* interface name */
485 u_long ift_ip; /* input packets */
486 u_long ift_ie; /* input errors */
487 u_long ift_op; /* output packets */
488 u_long ift_oe; /* output errors */
489 u_long ift_co; /* collisions */
490 u_int ift_dr; /* drops */
491 u_long ift_ib; /* input bytes */
492 u_long ift_ob; /* output bytes */
495 u_char signalled; /* set if alarm goes off "early" */
498 * Print a running summary of interface statistics.
499 * Repeat display every interval1 seconds, showing statistics
500 * collected over that interval. Assumes that interval1 is non-zero.
501 * First line printed at top of screen is always cumulative.
502 * XXX - should be rewritten to use ifmib(4).
505 sidewaysintpr(unsigned interval1, u_long off)
509 struct ifnethead ifnethead;
510 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
513 u_long interesting_off;
515 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
517 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
519 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
520 printf("malloc failed\n");
523 memset(iftot, 0, sizeof(struct iftot));
527 for (off = firstifnet, ip = iftot; off;) {
530 if (kread(off, (char *)&ifnet, sizeof ifnet))
532 strlcpy(name, ifnet.if_xname, sizeof(name));
533 if (interface && strcmp(name, interface) == 0) {
535 interesting_off = off;
537 snprintf(ip->ift_name, 16, "(%s)", name);
538 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
539 printf("malloc failed\n");
542 memset(ipn, 0, sizeof(struct iftot));
543 SLIST_NEXT(ip, chain) = ipn;
545 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
547 if ((total = malloc(sizeof(struct iftot))) == NULL) {
548 printf("malloc failed\n");
551 memset(total, 0, sizeof(struct iftot));
552 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
553 printf("malloc failed\n");
556 memset(sum, 0, sizeof(struct iftot));
559 (void)signal(SIGALRM, catchalarm);
561 (void)alarm(interval1);
564 printf("%17s %14s %16s", "input",
565 interesting ? interesting->ift_name : "(Total)", "output");
567 printf("%10s %5s %10s %10s %5s %10s %5s",
568 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
570 printf(" %5.5s", "drops");
575 if (interesting != NULL) {
577 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
582 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
583 ifnet.if_ipackets - ip->ift_ip,
584 ifnet.if_ierrors - ip->ift_ie,
585 ifnet.if_ibytes - ip->ift_ib,
586 ifnet.if_opackets - ip->ift_op,
587 ifnet.if_oerrors - ip->ift_oe,
588 ifnet.if_obytes - ip->ift_ob,
589 ifnet.if_collisions - ip->ift_co);
591 printf(" %5u", ifnet.if_snd.ifq_drops - ip->ift_dr);
593 ip->ift_ip = ifnet.if_ipackets;
594 ip->ift_ie = ifnet.if_ierrors;
595 ip->ift_ib = ifnet.if_ibytes;
596 ip->ift_op = ifnet.if_opackets;
597 ip->ift_oe = ifnet.if_oerrors;
598 ip->ift_ob = ifnet.if_obytes;
599 ip->ift_co = ifnet.if_collisions;
600 ip->ift_dr = ifnet.if_snd.ifq_drops;
610 for (off = firstifnet, ip = iftot;
611 off && SLIST_NEXT(ip, chain) != NULL;
612 ip = SLIST_NEXT(ip, chain)) {
613 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
617 sum->ift_ip += ifnet.if_ipackets;
618 sum->ift_ie += ifnet.if_ierrors;
619 sum->ift_ib += ifnet.if_ibytes;
620 sum->ift_op += ifnet.if_opackets;
621 sum->ift_oe += ifnet.if_oerrors;
622 sum->ift_ob += ifnet.if_obytes;
623 sum->ift_co += ifnet.if_collisions;
624 sum->ift_dr += ifnet.if_snd.ifq_drops;
625 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
628 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
629 sum->ift_ip - total->ift_ip,
630 sum->ift_ie - total->ift_ie,
631 sum->ift_ib - total->ift_ib,
632 sum->ift_op - total->ift_op,
633 sum->ift_oe - total->ift_oe,
634 sum->ift_ob - total->ift_ob,
635 sum->ift_co - total->ift_co);
637 printf(" %5u", sum->ift_dr - total->ift_dr);
644 oldmask = sigblock(sigmask(SIGALRM));
650 (void)alarm(interval1);
661 * Called if an interval expires before sidewaysintpr has completed a loop.
662 * Sets a flag to not wait for the alarm.
665 catchalarm(int signo __unused)