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
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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 1.11 2006/08/03 16:40:48 swildner 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 char *netname6 (struct sockaddr_in6 *, struct in6_addr *);
79 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
84 * Display a formatted value, or a '-' in the same space.
87 show_stat(const char *fmt, int width, u_long value, short showvalue)
91 /* Construct the format string */
93 sprintf(newfmt, "%%%d%s", width, fmt);
94 printf(newfmt, value);
96 sprintf(newfmt, "%%%ds", width);
104 * Print a description of the network interfaces.
107 intpr(int interval, u_long ifnetaddr, void (*pfunc)(char *))
110 struct ifnethead ifnethead;
115 struct in6_ifaddr in6;
117 struct ipx_ifaddr ipx;
122 struct iso_ifaddr iso;
137 struct sockaddr *sa = NULL;
142 if (ifnetaddr == 0) {
143 printf("ifnet: symbol not defined\n");
147 sidewaysintpr((unsigned)interval, ifnetaddr);
150 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
152 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
153 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
157 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
158 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
160 printf(" %10.10s","Ibytes");
161 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
163 printf(" %10.10s","Obytes");
164 printf(" %5s", "Coll");
166 printf(" %s", "Time");
168 printf(" %s", "Drop");
172 while (ifnetaddr || ifaddraddr) {
173 struct sockaddr_in *sin;
175 struct sockaddr_in6 *sin6;
183 if (ifaddraddr == 0) {
184 ifnetfound = ifnetaddr;
185 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
187 strlcpy(name, ifnet.if_xname, sizeof(name));
188 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
189 if (interface != 0 && (strcmp(name, interface) != 0))
191 cp = strchr(name, '\0');
198 if ((ifnet.if_flags&IFF_UP) == 0)
201 ifaddraddr = (u_long)TAILQ_FIRST(&ifnet.if_addrhead);
203 ifaddrfound = ifaddraddr;
206 * Get the interface stats. These may get
207 * overriden below on a per-interface basis.
209 opackets = ifnet.if_opackets;
210 ipackets = ifnet.if_ipackets;
211 obytes = ifnet.if_obytes;
212 ibytes = ifnet.if_ibytes;
213 oerrors = ifnet.if_oerrors;
214 ierrors = ifnet.if_ierrors;
215 collisions = ifnet.if_collisions;
216 timer = ifnet.if_timer;
217 drops = ifnet.if_snd.ifq_drops;
219 if (ifaddraddr == 0) {
220 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
221 printf("%-13.13s ", "none");
222 printf("%-15.15s ", "none");
224 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
228 #define CP(x) ((char *)(x))
229 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
231 sa = (struct sockaddr *)cp;
232 if (af != AF_UNSPEC && sa->sa_family != af) {
234 (u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_link);
237 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
238 switch (sa->sa_family) {
240 printf("%-13.13s ", "none");
241 printf("%-15.15s ", "none");
244 sin = (struct sockaddr_in *)sa;
246 /* can't use inet_makeaddr because kernel
247 * keeps nets unshifted.
249 in = inet_makeaddr(ifaddr.in.ia_subnet,
251 printf("%-13.13s ", netname(in.s_addr,
252 ifaddr.in.ia_subnetmask));
255 netname(htonl(ifaddr.in.ia_subnet),
256 ifaddr.in.ia_subnetmask));
259 routename(sin->sin_addr.s_addr));
265 sin6 = (struct sockaddr_in6 *)sa;
267 netname6(&ifaddr.in6.ia_addr,
268 &ifaddr.in6.ia_prefixmask.sin6_addr));
270 (char *)inet_ntop(AF_INET6,
272 ntop_buf, sizeof(ntop_buf)));
279 struct sockaddr_ipx *sipx =
280 (struct sockaddr_ipx *)sa;
284 *(union ipx_net *) &net = sipx->sipx_addr.x_net;
285 sprintf(netnum, "%lx", (u_long)ntohl(net));
286 printf("ipx:%-8s ", netnum);
287 /* printf("ipx:%-8s ", netname(net, 0L)); */
289 ipx_phost((struct sockaddr *)sipx));
294 printf("atalk:%-12.12s ",atalk_print(sa,0x10) );
295 printf("%-9.9s ",atalk_print(sa,0x0b) );
300 struct sockaddr_ns *sns =
301 (struct sockaddr_ns *)sa;
305 *(union ns_net *) &net = sns->sns_addr.x_net;
306 sprintf(netnum, "%lxH", ntohl(net));
308 printf("ns:%-8s ", netnum);
310 ns_phost((struct sockaddr *)sns));
316 struct sockaddr_dl *sdl =
317 (struct sockaddr_dl *)sa;
319 cp = (char *)LLADDR(sdl);
321 sprintf(linknum, "<Link#%d>", sdl->sdl_index);
322 m = printf("%-11.11s ", linknum);
326 m = printf("(%d)", sa->sa_family);
327 for (cp = sa->sa_len + (char *)sa;
328 --cp > sa->sa_data && (*cp == 0);) {}
329 n = cp - sa->sa_data + 1;
333 m += printf("%02x%c", *cp++ & 0xff,
344 * Fixup the statistics for interfaces that
345 * update stats for their network addresses
348 opackets = ifaddr.in.ia_ifa.if_opackets;
349 ipackets = ifaddr.in.ia_ifa.if_ipackets;
350 obytes = ifaddr.in.ia_ifa.if_obytes;
351 ibytes = ifaddr.in.ia_ifa.if_ibytes;
354 ifaddraddr = (u_long)TAILQ_NEXT(&ifaddr.ifa, ifa_link);
357 show_stat("lu", 8, ipackets, link_layer|network_layer);
359 show_stat("lu", 5, ierrors, link_layer);
362 show_stat("lu", 10, ibytes, link_layer|network_layer);
365 show_stat("lu", 8, opackets, link_layer|network_layer);
367 show_stat("lu", 5, oerrors, link_layer);
370 show_stat("lu", 10, obytes, link_layer|network_layer);
373 show_stat("lu", 5, collisions, link_layer);
376 show_stat("d", 3, timer, link_layer);
380 show_stat("d", 3, drops, link_layer);
383 if (aflag && ifaddrfound) {
385 * Print family's multicast addresses
388 struct ifmultiaddr ifma;
391 struct sockaddr_in in;
393 struct sockaddr_in6 in6;
395 struct sockaddr_dl dl;
399 for(multiaddr = (u_long)ifnet.if_multiaddrs.lh_first;
401 multiaddr = (u_long)ifma.ifma_link.le_next) {
402 if (kread(multiaddr, (char *)&ifma,
405 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
408 if (msa.sa.sa_family != sa->sa_family)
412 switch (msa.sa.sa_family) {
414 fmt = routename(msa.in.sin_addr.s_addr);
418 printf("%23s %-19.19s(refs: %d)\n", "",
427 switch (msa.dl.sdl_type) {
431 (struct ether_addr *)
438 printf("%23s %s\n", "", fmt);
445 SLIST_ENTRY(iftot) chain;
446 char ift_name[IFNAMSIZ]; /* interface name */
447 u_long ift_ip; /* input packets */
448 u_long ift_ie; /* input errors */
449 u_long ift_op; /* output packets */
450 u_long ift_oe; /* output errors */
451 u_long ift_co; /* collisions */
452 u_int ift_dr; /* drops */
453 u_long ift_ib; /* input bytes */
454 u_long ift_ob; /* output bytes */
457 u_char signalled; /* set if alarm goes off "early" */
460 * Print a running summary of interface statistics.
461 * Repeat display every interval seconds, showing statistics
462 * collected over that interval. Assumes that interval is non-zero.
463 * First line printed at top of screen is always cumulative.
464 * XXX - should be rewritten to use ifmib(4).
467 sidewaysintpr(unsigned interval, u_long off)
471 struct ifnethead ifnethead;
472 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
475 u_long interesting_off;
477 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
479 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
481 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
482 printf("malloc failed\n");
485 memset(iftot, 0, sizeof(struct iftot));
489 for (off = firstifnet, ip = iftot; off;) {
492 if (kread(off, (char *)&ifnet, sizeof ifnet))
494 strlcpy(name, ifnet.if_xname, sizeof(name));
495 if (interface && strcmp(name, interface) == 0) {
497 interesting_off = off;
499 snprintf(ip->ift_name, 16, "(%s)", name);
500 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
501 printf("malloc failed\n");
504 memset(ipn, 0, sizeof(struct iftot));
505 SLIST_NEXT(ip, chain) = ipn;
507 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
509 if ((total = malloc(sizeof(struct iftot))) == NULL) {
510 printf("malloc failed\n");
513 memset(total, 0, sizeof(struct iftot));
514 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
515 printf("malloc failed\n");
518 memset(sum, 0, sizeof(struct iftot));
521 (void)signal(SIGALRM, catchalarm);
523 (void)alarm(interval);
526 printf("%17s %14s %16s", "input",
527 interesting ? interesting->ift_name : "(Total)", "output");
529 printf("%10s %5s %10s %10s %5s %10s %5s",
530 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
532 printf(" %5.5s", "drops");
537 if (interesting != NULL) {
539 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
544 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
545 ifnet.if_ipackets - ip->ift_ip,
546 ifnet.if_ierrors - ip->ift_ie,
547 ifnet.if_ibytes - ip->ift_ib,
548 ifnet.if_opackets - ip->ift_op,
549 ifnet.if_oerrors - ip->ift_oe,
550 ifnet.if_obytes - ip->ift_ob,
551 ifnet.if_collisions - ip->ift_co);
553 printf(" %5u", ifnet.if_snd.ifq_drops - ip->ift_dr);
555 ip->ift_ip = ifnet.if_ipackets;
556 ip->ift_ie = ifnet.if_ierrors;
557 ip->ift_ib = ifnet.if_ibytes;
558 ip->ift_op = ifnet.if_opackets;
559 ip->ift_oe = ifnet.if_oerrors;
560 ip->ift_ob = ifnet.if_obytes;
561 ip->ift_co = ifnet.if_collisions;
562 ip->ift_dr = ifnet.if_snd.ifq_drops;
572 for (off = firstifnet, ip = iftot;
573 off && SLIST_NEXT(ip, chain) != NULL;
574 ip = SLIST_NEXT(ip, chain)) {
575 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
579 sum->ift_ip += ifnet.if_ipackets;
580 sum->ift_ie += ifnet.if_ierrors;
581 sum->ift_ib += ifnet.if_ibytes;
582 sum->ift_op += ifnet.if_opackets;
583 sum->ift_oe += ifnet.if_oerrors;
584 sum->ift_ob += ifnet.if_obytes;
585 sum->ift_co += ifnet.if_collisions;
586 sum->ift_dr += ifnet.if_snd.ifq_drops;
587 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
590 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
591 sum->ift_ip - total->ift_ip,
592 sum->ift_ie - total->ift_ie,
593 sum->ift_ib - total->ift_ib,
594 sum->ift_op - total->ift_op,
595 sum->ift_oe - total->ift_oe,
596 sum->ift_ob - total->ift_ob,
597 sum->ift_co - total->ift_co);
599 printf(" %5u", sum->ift_dr - total->ift_dr);
606 oldmask = sigblock(sigmask(SIGALRM));
612 (void)alarm(interval);
623 * Called if an interval expires before sidewaysintpr has completed a loop.
624 * Sets a flag to not wait for the alarm.
627 catchalarm(int signo __unused)