1 /*
2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
16 *
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
27 * SUCH DAMAGE.
28 *
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 $
31 */
32
33 #define _KERNEL_STRUCTURES
34 #include <sys/param.h>
35 #include <sys/protosw.h>
36 #include <sys/socket.h>
37 #include <sys/sysctl.h>
38 #include <sys/time.h>
39
40 #include <net/if.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>
48
49 #include <libutil.h>
50 #include <signal.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55
56 #include "netstat.h"
57
58 #define YES 1
59 #define NO 0
60
61 static void sidewaysintpr (u_int, u_long, int);
62 static void catchalarm (int);
63
64 #ifdef INET6
65 static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
66 #endif
67
68
69 /*
70 * Display a formatted value, or a '-' in the same space.
71 */
72 static void
show_stat(const char * fmt,int width,u_long value,short showvalue)73 show_stat(const char *fmt, int width, u_long value, short showvalue)
74 {
75 char newfmt[32];
76
77 if (! showvalue) {
78 /* no value, just the dash */
79 sprintf(newfmt, "%%%ds", width);
80 printf(newfmt, "-");
81 return;
82 }
83
84 if (hflag) { /* human-readable */
85 char buf[5];
86 humanize_number(buf, sizeof buf, (int64_t) value, "",
87 HN_AUTOSCALE,
88 HN_NOSPACE | HN_DECIMAL);
89 sprintf(newfmt, "%%%ds", width);
90 printf(newfmt, buf);
91 } else {
92 sprintf(newfmt, "%%%d%s", width, fmt);
93 printf(newfmt, value);
94 }
95 }
96
97
98
99 /*
100 * Print a description of the network interfaces.
101 */
102 void
intpr(int interval1,u_long ifnetaddr,void (* pfunc)(char *),u_long ncpusaddr)103 intpr(int interval1, u_long ifnetaddr, void (*pfunc)(char *), u_long ncpusaddr)
104 {
105 struct ifnet ifnet;
106 struct ifdata_pcpu ifdata;
107 struct ifaddr_container ifac;
108 struct ifnethead ifnethead;
109 union {
110 struct ifaddr ifa;
111 struct in_ifaddr in;
112 #ifdef INET6
113 struct in6_ifaddr in6;
114 #endif
115 } ifaddr;
116 u_long ifaddraddr;
117 u_long ifaddrcont_addr;
118 u_long ifaddrfound;
119 u_long ifdataaddr;
120 u_long opackets;
121 u_long ipackets;
122 u_long obytes;
123 u_long ibytes;
124 u_long oerrors;
125 u_long ierrors;
126 u_long collisions;
127 u_long oqdrops;
128 short timer;
129 struct sockaddr *sa = NULL;
130 char name[IFNAMSIZ];
131 short network_layer;
132 short link_layer;
133 int ncpus;
134
135 if (kread(ncpusaddr, (char *)&ncpus, sizeof(ncpus)))
136 return;
137
138 if (ifnetaddr == 0) {
139 printf("ifnet: symbol not defined\n");
140 return;
141 }
142 if (interval1) {
143 sidewaysintpr((unsigned)interval1, ifnetaddr, ncpus);
144 return;
145 }
146 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
147 return;
148 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
149 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
150 return;
151
152 if (!pfunc) {
153 printf("%-9.9s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
154 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
155 if (bflag)
156 printf(" %10.10s","Ibytes");
157 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
158 if (bflag)
159 printf(" %10.10s","Obytes");
160 printf(" %5s", "Coll");
161 if (tflag)
162 printf(" %5s", "Time");
163 if (dflag)
164 printf(" %5s", "Drop");
165 putchar('\n');
166 }
167 ifaddraddr = 0;
168 ifaddrcont_addr = 0;
169 while (ifnetaddr || ifaddraddr) {
170 struct sockaddr_in *sin;
171 #ifdef INET6
172 struct sockaddr_in6 *sin6;
173 #endif
174 char *cp;
175 int n, m, cpu;
176
177 network_layer = 0;
178 link_layer = 0;
179
180 if (ifaddraddr == 0) {
181 struct ifaddrhead head;
182
183 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
184 return;
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))
188 continue;
189 cp = strchr(name, '\0');
190
191 if (pfunc) {
192 (*pfunc)(name);
193 continue;
194 }
195
196 if ((ifnet.if_flags & IFF_UP) == 0)
197 *cp++ = '*';
198 *cp = '\0';
199
200 if (kread((u_long)ifnet.if_addrheads,
201 (char *)&head, sizeof(head)))
202 return;
203
204 ifaddrcont_addr = (u_long)TAILQ_FIRST(&head);
205 if (ifaddrcont_addr == 0) {
206 ifaddraddr = 0;
207 } else {
208 if (kread(ifaddrcont_addr, (char *)&ifac,
209 sizeof(ifac)))
210 return;
211 ifaddraddr = (u_long)ifac.ifa;
212 }
213 }
214 ifaddrfound = ifaddraddr;
215
216 /*
217 * Get the interface stats. These may get
218 * overridden below on a per-interface basis.
219 */
220 ifdataaddr = (u_long)ifnet.if_data_pcpu;
221 if (kread(ifdataaddr, (char *)&ifdata, sizeof(ifdata)))
222 return;
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;
230 oqdrops = ifdata.ifd_oqdrops;
231
232 for (cpu = 1; cpu < ncpus; ++cpu) {
233 if (kread(ifdataaddr + (cpu * sizeof(ifdata)),
234 (char *)&ifdata, sizeof(ifdata)))
235 return;
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;
243 oqdrops += ifdata.ifd_oqdrops;
244 }
245
246 timer = ifnet.if_timer;
247
248 if (ifaddraddr == 0) {
249 printf("%-9.9s %-5lu ", name, ifnet.if_mtu);
250 printf("%-13.13s ", "none");
251 printf("%-15.15s ", "none");
252 } else {
253 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
254 ifaddraddr = 0;
255 continue;
256 }
257
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;
264
265 if (kread(ifaddrcont_addr +
266 (cpu * sizeof(nifac)),
267 (char *)&nifac, sizeof(nifac))) {
268 ifaddraddr = 0;
269 continue;
270 }
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;
275 }
276
277 #define CP(x) ((char *)(x))
278 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
279 CP(&ifaddr);
280 sa = (struct sockaddr *)cp;
281 if (af != AF_UNSPEC && sa->sa_family != af) {
282 ifaddrcont_addr =
283 (u_long)TAILQ_NEXT(&ifac, ifa_link);
284 if (ifaddrcont_addr == 0) {
285 ifaddraddr = 0;
286 } else {
287 if (kread(ifaddrcont_addr,
288 (char *)&ifac, sizeof(ifac))) {
289 ifaddraddr = 0;
290 continue;
291 }
292 ifaddraddr = (u_long)ifac.ifa;
293 }
294 continue;
295 }
296 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
297 switch (sa->sa_family) {
298 case AF_UNSPEC:
299 printf("%-13.13s ", "none");
300 printf("%-15.15s ", "none");
301 break;
302 case AF_INET:
303 sin = (struct sockaddr_in *)sa;
304 #ifdef notdef
305 /* can't use inet_makeaddr because kernel
306 * keeps nets unshifted.
307 */
308 in = inet_makeaddr(ifaddr.in.ia_subnet,
309 INADDR_ANY);
310 printf("%-13.13s ", netname(in.s_addr,
311 ifaddr.in.ia_subnetmask));
312 #else
313 printf("%-13.13s ",
314 netname(htonl(ifaddr.in.ia_subnet),
315 ifaddr.in.ia_subnetmask));
316 #endif
317 printf("%-15.15s ",
318 routename(sin->sin_addr.s_addr));
319
320 network_layer = 1;
321 break;
322 #ifdef INET6
323 case AF_INET6:
324 sin6 = (struct sockaddr_in6 *)sa;
325 printf("%-11.11s ",
326 netname6(&ifaddr.in6.ia_addr,
327 &ifaddr.in6.ia_prefixmask.sin6_addr));
328 printf("%-17.17s ",
329 inet_ntop(AF_INET6,
330 &sin6->sin6_addr,
331 ntop_buf, sizeof(ntop_buf)));
332
333 network_layer = 1;
334 break;
335 #endif /*INET6*/
336 case AF_LINK:
337 {
338 struct sockaddr_dl *sdl =
339 (struct sockaddr_dl *)sa;
340 char linknum[10];
341 cp = (char *)LLADDR(sdl);
342 n = sdl->sdl_alen;
343 sprintf(linknum, "<Link#%hu>", sdl->sdl_index);
344 m = printf("%-11.11s ", linknum);
345 }
346 goto hexprint;
347 default:
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;
352 cp = sa->sa_data;
353 hexprint:
354 while (--n >= 0)
355 m += printf("%02x%c", *cp++ & 0xff,
356 n > 0 ? ':' : ' ');
357 m = 30 - m;
358 while (m-- > 0)
359 putchar(' ');
360
361 link_layer = 1;
362 break;
363 }
364
365 /*
366 * Fixup the statistics for interfaces that
367 * update stats for their network addresses
368 */
369 if (network_layer) {
370 opackets = ifaddr.ifa.if_opackets;
371 ipackets = ifaddr.ifa.if_ipackets;
372 obytes = ifaddr.ifa.if_obytes;
373 ibytes = ifaddr.ifa.if_ibytes;
374 }
375
376 ifaddrcont_addr =
377 (u_long)TAILQ_NEXT(&ifac, ifa_link);
378 if (ifaddrcont_addr == 0) {
379 ifaddraddr = 0;
380 } else {
381 if (kread(ifaddrcont_addr,
382 (char *)&ifac, sizeof(ifac))) {
383 ifaddraddr = 0;
384 } else {
385 ifaddraddr = (u_long)ifac.ifa;
386 }
387 }
388 }
389
390 show_stat("lu", 8, ipackets, link_layer|network_layer);
391 printf(" ");
392 show_stat("lu", 5, ierrors, link_layer);
393 printf(" ");
394 if (bflag) {
395 show_stat("lu", 10, ibytes, link_layer|network_layer);
396 printf(" ");
397 }
398 show_stat("lu", 8, opackets, link_layer|network_layer);
399 printf(" ");
400 show_stat("lu", 5, oerrors, link_layer);
401 printf(" ");
402 if (bflag) {
403 show_stat("lu", 10, obytes, link_layer|network_layer);
404 printf(" ");
405 }
406 show_stat("lu", 5, collisions, link_layer);
407 if (tflag) {
408 printf(" ");
409 show_stat("d", 5, timer, link_layer);
410 }
411 if (dflag) {
412 printf(" ");
413 show_stat("lu", 5, oqdrops, link_layer);
414 }
415 putchar('\n');
416 if (aflag && ifaddrfound) {
417 /*
418 * Print family's multicast addresses
419 */
420 struct ifmultiaddr *multiaddr;
421 struct ifmultiaddr ifma;
422 union {
423 struct sockaddr sa;
424 struct sockaddr_in in;
425 #ifdef INET6
426 struct sockaddr_in6 in6;
427 #endif /* INET6 */
428 struct sockaddr_dl dl;
429 } msa;
430 const char *fmt;
431
432 TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) {
433 if (kread((u_long)multiaddr, (char *)&ifma,
434 sizeof ifma))
435 break;
436 multiaddr = &ifma;
437 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
438 sizeof msa))
439 break;
440 if (msa.sa.sa_family != sa->sa_family)
441 continue;
442
443 fmt = NULL;
444 switch (msa.sa.sa_family) {
445 case AF_INET:
446 fmt = routename(msa.in.sin_addr.s_addr);
447 break;
448 #ifdef INET6
449 case AF_INET6:
450 printf("%23s %-19.19s(refs: %d)\n", "",
451 inet_ntop(AF_INET6,
452 &msa.in6.sin6_addr,
453 ntop_buf,
454 sizeof(ntop_buf)),
455 ifma.ifma_refcount);
456 break;
457 #endif /* INET6 */
458 case AF_LINK:
459 switch (msa.dl.sdl_type) {
460 case IFT_ETHER:
461 case IFT_FDDI:
462 fmt = ether_ntoa(
463 (struct ether_addr *)
464 LLADDR(&msa.dl));
465 break;
466 }
467 break;
468 }
469 if (fmt)
470 printf("%23s %s\n", "", fmt);
471 }
472 }
473 }
474 }
475
476 struct iftot {
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_long ift_dr; /* drops */
485 u_long ift_ib; /* input bytes */
486 u_long ift_ob; /* output bytes */
487 };
488
489 u_char signalled; /* set if alarm goes off "early" */
490
491 /*
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).
497 */
498 static void
sidewaysintpr(unsigned interval1,u_long off,int ncpus)499 sidewaysintpr(unsigned interval1, u_long off, int ncpus)
500 {
501 struct ifnet ifnet;
502 u_long firstifnet;
503 struct ifnethead ifnethead;
504 struct ifdata_pcpu ifdata;
505 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
506 int line, cpu;
507 int oldmask, first;
508 u_long interesting_off;
509 u_long ifdata_addr;
510
511 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
512 return;
513 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
514
515 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
516 printf("malloc failed\n");
517 exit(1);
518 }
519 memset(iftot, 0, sizeof(struct iftot));
520
521 interesting = NULL;
522 interesting_off = 0;
523 for (off = firstifnet, ip = iftot; off;) {
524 char name[IFNAMSIZ];
525
526 if (kread(off, (char *)&ifnet, sizeof ifnet))
527 break;
528 strlcpy(name, ifnet.if_xname, sizeof(name));
529 if (interface && strcmp(name, interface) == 0) {
530 interesting = ip;
531 interesting_off = off;
532 }
533 snprintf(ip->ift_name, 16, "(%.13s)", name);
534 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
535 printf("malloc failed\n");
536 exit(1);
537 }
538 memset(ipn, 0, sizeof(struct iftot));
539 SLIST_NEXT(ip, chain) = ipn;
540 ip = ipn;
541 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
542 }
543 if ((total = malloc(sizeof(struct iftot))) == NULL) {
544 printf("malloc failed\n");
545 exit(1);
546 }
547 memset(total, 0, sizeof(struct iftot));
548 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
549 printf("malloc failed\n");
550 exit(1);
551 }
552 memset(sum, 0, sizeof(struct iftot));
553
554
555 (void)signal(SIGALRM, catchalarm);
556 signalled = NO;
557 (void)alarm(interval1);
558 first = 1;
559 banner:
560 printf("%17s %14s %16s", "input",
561 interesting ? interesting->ift_name : "(Total)", "output");
562 putchar('\n');
563 printf("%10s %5s %10s %10s %5s %10s %5s",
564 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
565 if (dflag)
566 printf(" %5.5s", "drops");
567 putchar('\n');
568 fflush(stdout);
569 line = 0;
570 loop:
571 if (interesting != NULL) {
572 ip = interesting;
573 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
574 printf("???\n");
575 exit(1);
576 }
577
578 ifdata_addr = (u_long)ifnet.if_data_pcpu;
579 if (kread(ifdata_addr, (char *)&ifdata, sizeof(ifdata))) {
580 printf("ifdata 1\n");
581 exit(1);
582 }
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;
590 ifnet.if_oqdrops = ifdata.ifd_oqdrops;
591
592 for (cpu = 1; cpu < ncpus; ++cpu) {
593 if (kread(ifdata_addr + (cpu * sizeof(ifdata)),
594 (char *)&ifdata, sizeof(ifdata))) {
595 printf("ifdata 2\n");
596 exit(1);
597 }
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;
605 ifnet.if_oqdrops += ifdata.ifd_oqdrops;
606 }
607
608 if (!first) {
609 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
610 ifnet.if_ipackets - ip->ift_ip,
611 ifnet.if_ierrors - ip->ift_ie,
612 ifnet.if_ibytes - ip->ift_ib,
613 ifnet.if_opackets - ip->ift_op,
614 ifnet.if_oerrors - ip->ift_oe,
615 ifnet.if_obytes - ip->ift_ob,
616 ifnet.if_collisions - ip->ift_co);
617 if (dflag)
618 printf(" %5lu", ifnet.if_oqdrops - ip->ift_dr);
619 }
620 ip->ift_ip = ifnet.if_ipackets;
621 ip->ift_ie = ifnet.if_ierrors;
622 ip->ift_ib = ifnet.if_ibytes;
623 ip->ift_op = ifnet.if_opackets;
624 ip->ift_oe = ifnet.if_oerrors;
625 ip->ift_ob = ifnet.if_obytes;
626 ip->ift_co = ifnet.if_collisions;
627 ip->ift_dr = ifnet.if_oqdrops;
628 } else {
629 sum->ift_ip = 0;
630 sum->ift_ie = 0;
631 sum->ift_ib = 0;
632 sum->ift_op = 0;
633 sum->ift_oe = 0;
634 sum->ift_ob = 0;
635 sum->ift_co = 0;
636 sum->ift_dr = 0;
637 for (off = firstifnet, ip = iftot;
638 off && SLIST_NEXT(ip, chain) != NULL;
639 ip = SLIST_NEXT(ip, chain)) {
640 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
641 off = 0;
642 continue;
643 }
644
645 ifdata_addr = (u_long)ifnet.if_data_pcpu;
646 if (kread(ifdata_addr, (char *)&ifdata,
647 sizeof(ifdata))) {
648 printf("ifdata 3\n");
649 exit(1);
650 }
651 ifnet.if_ipackets = ifdata.ifd_ipackets;
652 ifnet.if_ierrors = ifdata.ifd_ierrors;
653 ifnet.if_ibytes = ifdata.ifd_ibytes;
654 ifnet.if_opackets = ifdata.ifd_opackets;
655 ifnet.if_oerrors = ifdata.ifd_oerrors;
656 ifnet.if_obytes = ifdata.ifd_obytes;
657 ifnet.if_collisions = ifdata.ifd_collisions;
658 ifnet.if_oqdrops = ifdata.ifd_oqdrops;
659
660 for (cpu = 1; cpu < ncpus; ++cpu) {
661 if (kread(ifdata_addr + (cpu * sizeof(ifdata)),
662 (char *)&ifdata, sizeof(ifdata))) {
663 printf("ifdata 2\n");
664 exit(1);
665 }
666 ifnet.if_ipackets += ifdata.ifd_ipackets;
667 ifnet.if_ierrors += ifdata.ifd_ierrors;
668 ifnet.if_ibytes += ifdata.ifd_ibytes;
669 ifnet.if_opackets += ifdata.ifd_opackets;
670 ifnet.if_oerrors += ifdata.ifd_oerrors;
671 ifnet.if_obytes += ifdata.ifd_obytes;
672 ifnet.if_collisions += ifdata.ifd_collisions;
673 ifnet.if_oqdrops += ifdata.ifd_oqdrops;
674 }
675
676 /*
677 * Don't double-count interfaces that are associated
678 * with bridges, they will be rolled up by the
679 * bridge. Errors and collisions are not rolled up.
680 */
681 if (ifnet.if_bridge) {
682 sum->ift_ie += ifnet.if_ierrors;
683 sum->ift_oe += ifnet.if_oerrors;
684 sum->ift_co += ifnet.if_collisions;
685 } else {
686 sum->ift_ip += ifnet.if_ipackets;
687 sum->ift_ie += ifnet.if_ierrors;
688 sum->ift_ib += ifnet.if_ibytes;
689 sum->ift_op += ifnet.if_opackets;
690 sum->ift_oe += ifnet.if_oerrors;
691 sum->ift_ob += ifnet.if_obytes;
692 sum->ift_co += ifnet.if_collisions;
693 sum->ift_dr += ifnet.if_oqdrops;
694 }
695 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
696 }
697 if (!first) {
698 /* %10lu %5lu %10lu %10lu %5lu %10lu %5lu */
699 show_stat("lu", 10, sum->ift_ip - total->ift_ip, 1);
700 show_stat("lu", 5+1, sum->ift_ie - total->ift_ie, 1);
701 show_stat("lu", 10+1, sum->ift_ib - total->ift_ib, 1);
702 show_stat("lu", 10+1, sum->ift_op - total->ift_op, 1);
703 show_stat("lu", 5+1, sum->ift_oe - total->ift_oe, 1);
704 show_stat("lu", 10+1, sum->ift_ob - total->ift_ob, 1);
705 show_stat("lu", 5+1, sum->ift_co - total->ift_co, 1);
706 if (dflag)
707 show_stat("u", 5+1, sum->ift_dr - total->ift_dr, 1);
708 }
709 *total = *sum;
710 }
711 if (!first)
712 putchar('\n');
713 fflush(stdout);
714 oldmask = sigblock(sigmask(SIGALRM));
715 if (! signalled) {
716 sigpause(0);
717 }
718 sigsetmask(oldmask);
719 signalled = NO;
720 (void)alarm(interval1);
721 line++;
722 first = 0;
723 if (line == 21)
724 goto banner;
725 else
726 goto loop;
727 /*NOTREACHED*/
728 }
729
730 /*
731 * Called if an interval expires before sidewaysintpr has completed a loop.
732 * Sets a flag to not wait for the alarm.
733 */
734 static void
catchalarm(int signo __unused)735 catchalarm(int signo __unused)
736 {
737 signalled = YES;
738 }
739