network code: Convert if_multiaddrs from LIST to TAILQ.
[dragonfly.git] / usr.bin / netstat / if.c
CommitLineData
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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. 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.
20 *
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
31 * SUCH DAMAGE.
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32 *
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 $
b2632176 35 * $DragonFly: src/usr.bin/netstat/if.c,v 1.12 2008/03/07 11:34:21 sephe Exp $
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36 */
37
36c443db 38#include <sys/param.h>
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39#include <sys/protosw.h>
40#include <sys/socket.h>
41#include <sys/sysctl.h>
42#include <sys/time.h>
43
44#include <net/if.h>
45#include <net/if_var.h>
46#include <net/if_dl.h>
47#include <net/if_types.h>
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48#include <net/ethernet.h>
49#include <netinet/in.h>
50#include <netinet/in_var.h>
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51#include <netproto/ipx/ipx.h>
52#include <netproto/ipx/ipx_if.h>
984263bc 53#ifdef NS
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54#include <netproto/ns/ns.h>
55#include <netproto/ns/ns_if.h>
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56#endif
57#ifdef ISO
58#include <netiso/iso.h>
59#include <netiso/iso_var.h>
60#endif
61#include <arpa/inet.h>
62
63#include <signal.h>
64#include <stdio.h>
65#include <stdlib.h>
66#include <string.h>
67#include <unistd.h>
68
69#include "netstat.h"
70
71#define YES 1
72#define NO 0
73
74static void sidewaysintpr (u_int, u_long);
75static void catchalarm (int);
76
77#ifdef INET6
984263bc 78static char ntop_buf[INET6_ADDRSTRLEN]; /* for inet_ntop() */
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79#endif
80
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81
82/*
83 * Display a formatted value, or a '-' in the same space.
84 */
85static void
86show_stat(const char *fmt, int width, u_long value, short showvalue)
87{
88 char newfmt[32];
89
90 /* Construct the format string */
91 if (showvalue) {
92 sprintf(newfmt, "%%%d%s", width, fmt);
93 printf(newfmt, value);
94 } else {
95 sprintf(newfmt, "%%%ds", width);
96 printf(newfmt, "-");
97 }
98}
99
100
101
102/*
103 * Print a description of the network interfaces.
104 */
105void
b82e1528 106intpr(int interval1, u_long ifnetaddr, void (*pfunc)(char *))
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107{
108 struct ifnet ifnet;
b2632176 109 struct ifaddr_container ifac;
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110 struct ifnethead ifnethead;
111 union {
112 struct ifaddr ifa;
113 struct in_ifaddr in;
114#ifdef INET6
115 struct in6_ifaddr in6;
116#endif
117 struct ipx_ifaddr ipx;
118#ifdef NS
119 struct ns_ifaddr ns;
120#endif
121#ifdef ISO
122 struct iso_ifaddr iso;
123#endif
124 } ifaddr;
125 u_long ifaddraddr;
b2632176 126 u_long ifaddrcont_addr;
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127 u_long ifaddrfound;
128 u_long ifnetfound;
129 u_long opackets;
130 u_long ipackets;
131 u_long obytes;
132 u_long ibytes;
133 u_long oerrors;
134 u_long ierrors;
135 u_long collisions;
136 short timer;
137 int drops;
138 struct sockaddr *sa = NULL;
3e4a09e7 139 char name[IFNAMSIZ];
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140 short network_layer;
141 short link_layer;
142
143 if (ifnetaddr == 0) {
144 printf("ifnet: symbol not defined\n");
145 return;
146 }
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147 if (interval1) {
148 sidewaysintpr((unsigned)interval1, ifnetaddr);
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149 return;
150 }
151 if (kread(ifnetaddr, (char *)&ifnethead, sizeof ifnethead))
152 return;
153 ifnetaddr = (u_long)TAILQ_FIRST(&ifnethead);
154 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
155 return;
156
157 if (!pfunc) {
35d7d0f9 158 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
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159 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
160 if (bflag)
161 printf(" %10.10s","Ibytes");
162 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
163 if (bflag)
164 printf(" %10.10s","Obytes");
165 printf(" %5s", "Coll");
166 if (tflag)
167 printf(" %s", "Time");
168 if (dflag)
169 printf(" %s", "Drop");
170 putchar('\n');
171 }
172 ifaddraddr = 0;
173 while (ifnetaddr || ifaddraddr) {
174 struct sockaddr_in *sin;
175#ifdef INET6
176 struct sockaddr_in6 *sin6;
177#endif
6bd457ed 178 char *cp;
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179 int n, m;
180
181 network_layer = 0;
182 link_layer = 0;
183
184 if (ifaddraddr == 0) {
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185 struct ifaddrhead head;
186
984263bc 187 ifnetfound = ifnetaddr;
3e4a09e7 188 if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet))
984263bc 189 return;
3e4a09e7 190 strlcpy(name, ifnet.if_xname, sizeof(name));
984263bc 191 ifnetaddr = (u_long)TAILQ_NEXT(&ifnet, if_link);
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192 if (interface != 0 && (strcmp(name, interface) != 0))
193 continue;
43b4d1bd 194 cp = strchr(name, '\0');
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195
196 if (pfunc) {
197 (*pfunc)(name);
198 continue;
199 }
200
201 if ((ifnet.if_flags&IFF_UP) == 0)
202 *cp++ = '*';
203 *cp = '\0';
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204
205 if (kread((u_long)ifnet.if_addrheads,
206 (char *)&head, sizeof(head)))
207 return;
208
209 ifaddrcont_addr =
210 (u_long)TAILQ_FIRST(&head);
211 if (ifaddrcont_addr == 0) {
212 ifaddraddr = 0;
213 } else {
214 if (kread(ifaddrcont_addr, (char *)&ifac,
215 sizeof(ifac)))
216 return;
217 ifaddraddr = (u_long)ifac.ifa;
218 }
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219 }
220 ifaddrfound = ifaddraddr;
221
222 /*
223 * Get the interface stats. These may get
224 * overriden below on a per-interface basis.
225 */
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;
235
236 if (ifaddraddr == 0) {
35d7d0f9 237 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
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238 printf("%-13.13s ", "none");
239 printf("%-15.15s ", "none");
240 } else {
241 if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) {
242 ifaddraddr = 0;
243 continue;
244 }
245#define CP(x) ((char *)(x))
246 cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
247 CP(&ifaddr);
248 sa = (struct sockaddr *)cp;
249 if (af != AF_UNSPEC && sa->sa_family != af) {
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250 ifaddrcont_addr =
251 (u_long)TAILQ_NEXT(&ifac, ifa_link);
252 if (ifaddrcont_addr == 0) {
253 ifaddraddr = 0;
254 } else {
255 if (kread(ifaddrcont_addr,
256 (char *)&ifac, sizeof(ifac))) {
257 ifaddraddr = 0;
258 continue;
259 }
260 ifaddraddr = (u_long)ifac.ifa;
261 }
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262 continue;
263 }
35d7d0f9 264 printf("%-7.7s %-5lu ", name, ifnet.if_mtu);
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265 switch (sa->sa_family) {
266 case AF_UNSPEC:
267 printf("%-13.13s ", "none");
268 printf("%-15.15s ", "none");
269 break;
270 case AF_INET:
271 sin = (struct sockaddr_in *)sa;
272#ifdef notdef
273 /* can't use inet_makeaddr because kernel
274 * keeps nets unshifted.
275 */
276 in = inet_makeaddr(ifaddr.in.ia_subnet,
277 INADDR_ANY);
278 printf("%-13.13s ", netname(in.s_addr,
279 ifaddr.in.ia_subnetmask));
280#else
281 printf("%-13.13s ",
282 netname(htonl(ifaddr.in.ia_subnet),
283 ifaddr.in.ia_subnetmask));
284#endif
285 printf("%-15.15s ",
286 routename(sin->sin_addr.s_addr));
287
288 network_layer = 1;
289 break;
290#ifdef INET6
291 case AF_INET6:
292 sin6 = (struct sockaddr_in6 *)sa;
293 printf("%-11.11s ",
294 netname6(&ifaddr.in6.ia_addr,
295 &ifaddr.in6.ia_prefixmask.sin6_addr));
296 printf("%-17.17s ",
b82e1528 297 inet_ntop(AF_INET6,
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298 &sin6->sin6_addr,
299 ntop_buf, sizeof(ntop_buf)));
300
301 network_layer = 1;
302 break;
303#endif /*INET6*/
304 case AF_IPX:
305 {
306 struct sockaddr_ipx *sipx =
307 (struct sockaddr_ipx *)sa;
308 u_long net;
309 char netnum[10];
310
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)); */
315 printf("%-15s ",
316 ipx_phost((struct sockaddr *)sipx));
317 }
318 break;
319
320 case AF_APPLETALK:
321 printf("atalk:%-12.12s ",atalk_print(sa,0x10) );
322 printf("%-9.9s ",atalk_print(sa,0x0b) );
323 break;
324#ifdef NS
325 case AF_NS:
326 {
327 struct sockaddr_ns *sns =
328 (struct sockaddr_ns *)sa;
329 u_long net;
330 char netnum[10];
331
332 *(union ns_net *) &net = sns->sns_addr.x_net;
333 sprintf(netnum, "%lxH", ntohl(net));
334 upHex(netnum);
335 printf("ns:%-8s ", netnum);
336 printf("%-15s ",
337 ns_phost((struct sockaddr *)sns));
338 }
339 break;
340#endif
341 case AF_LINK:
342 {
343 struct sockaddr_dl *sdl =
344 (struct sockaddr_dl *)sa;
345 char linknum[10];
346 cp = (char *)LLADDR(sdl);
347 n = sdl->sdl_alen;
348 sprintf(linknum, "<Link#%d>", sdl->sdl_index);
349 m = printf("%-11.11s ", linknum);
350 }
351 goto hexprint;
352 default:
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;
357 cp = sa->sa_data;
358 hexprint:
359 while (--n >= 0)
360 m += printf("%02x%c", *cp++ & 0xff,
361 n > 0 ? ':' : ' ');
362 m = 30 - m;
363 while (m-- > 0)
364 putchar(' ');
365
366 link_layer = 1;
367 break;
368 }
369
370 /*
371 * Fixup the statistics for interfaces that
372 * update stats for their network addresses
373 */
374 if (network_layer) {
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;
379 }
380
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381 ifaddrcont_addr =
382 (u_long)TAILQ_NEXT(&ifac, ifa_link);
383 if (ifaddrcont_addr == 0) {
384 ifaddraddr = 0;
385 } else {
386 if (kread(ifaddrcont_addr,
387 (char *)&ifac, sizeof(ifac))) {
388 ifaddraddr = 0;
389 } else {
390 ifaddraddr = (u_long)ifac.ifa;
391 }
392 }
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393 }
394
395 show_stat("lu", 8, ipackets, link_layer|network_layer);
396 printf(" ");
397 show_stat("lu", 5, ierrors, link_layer);
398 printf(" ");
399 if (bflag) {
400 show_stat("lu", 10, ibytes, link_layer|network_layer);
401 printf(" ");
402 }
403 show_stat("lu", 8, opackets, link_layer|network_layer);
404 printf(" ");
405 show_stat("lu", 5, oerrors, link_layer);
406 printf(" ");
407 if (bflag) {
408 show_stat("lu", 10, obytes, link_layer|network_layer);
409 printf(" ");
410 }
411 show_stat("lu", 5, collisions, link_layer);
412 if (tflag) {
413 printf(" ");
414 show_stat("d", 3, timer, link_layer);
415 }
416 if (dflag) {
417 printf(" ");
418 show_stat("d", 3, drops, link_layer);
419 }
420 putchar('\n');
421 if (aflag && ifaddrfound) {
422 /*
423 * Print family's multicast addresses
424 */
441d34b2 425 struct ifmultiaddr *multiaddr;
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426 struct ifmultiaddr ifma;
427 union {
428 struct sockaddr sa;
429 struct sockaddr_in in;
430#ifdef INET6
431 struct sockaddr_in6 in6;
432#endif /* INET6 */
433 struct sockaddr_dl dl;
434 } msa;
435 const char *fmt;
436
441d34b2
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437 TAILQ_FOREACH(multiaddr, &ifnet.if_multiaddrs, ifma_link) {
438 if (kread((u_long)multiaddr, (char *)&ifma,
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439 sizeof ifma))
440 break;
441d34b2 441 multiaddr = &ifma;
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442 if (kread((u_long)ifma.ifma_addr, (char *)&msa,
443 sizeof msa))
444 break;
445 if (msa.sa.sa_family != sa->sa_family)
446 continue;
447
448 fmt = 0;
449 switch (msa.sa.sa_family) {
450 case AF_INET:
451 fmt = routename(msa.in.sin_addr.s_addr);
452 break;
453#ifdef INET6
454 case AF_INET6:
455 printf("%23s %-19.19s(refs: %d)\n", "",
456 inet_ntop(AF_INET6,
457 &msa.in6.sin6_addr,
458 ntop_buf,
459 sizeof(ntop_buf)),
460 ifma.ifma_refcount);
461 break;
462#endif /* INET6 */
463 case AF_LINK:
464 switch (msa.dl.sdl_type) {
465 case IFT_ETHER:
466 case IFT_FDDI:
467 fmt = ether_ntoa(
468 (struct ether_addr *)
469 LLADDR(&msa.dl));
470 break;
471 }
472 break;
473 }
474 if (fmt)
475 printf("%23s %s\n", "", fmt);
476 }
477 }
478 }
479}
480
481struct iftot {
482 SLIST_ENTRY(iftot) chain;
3e4a09e7 483 char ift_name[IFNAMSIZ]; /* interface name */
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484 u_long ift_ip; /* input packets */
485 u_long ift_ie; /* input errors */
486 u_long ift_op; /* output packets */
487 u_long ift_oe; /* output errors */
488 u_long ift_co; /* collisions */
489 u_int ift_dr; /* drops */
490 u_long ift_ib; /* input bytes */
491 u_long ift_ob; /* output bytes */
492};
493
494u_char signalled; /* set if alarm goes off "early" */
495
496/*
497 * Print a running summary of interface statistics.
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498 * Repeat display every interval1 seconds, showing statistics
499 * collected over that interval. Assumes that interval1 is non-zero.
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500 * First line printed at top of screen is always cumulative.
501 * XXX - should be rewritten to use ifmib(4).
502 */
503static void
b82e1528 504sidewaysintpr(unsigned interval1, u_long off)
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505{
506 struct ifnet ifnet;
507 u_long firstifnet;
508 struct ifnethead ifnethead;
509 struct iftot *iftot, *ip, *ipn, *total, *sum, *interesting;
6bd457ed 510 int line;
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511 int oldmask, first;
512 u_long interesting_off;
513
514 if (kread(off, (char *)&ifnethead, sizeof ifnethead))
515 return;
516 firstifnet = (u_long)TAILQ_FIRST(&ifnethead);
517
518 if ((iftot = malloc(sizeof(struct iftot))) == NULL) {
519 printf("malloc failed\n");
520 exit(1);
521 }
522 memset(iftot, 0, sizeof(struct iftot));
523
524 interesting = NULL;
525 interesting_off = 0;
526 for (off = firstifnet, ip = iftot; off;) {
3e4a09e7 527 char name[IFNAMSIZ];
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528
529 if (kread(off, (char *)&ifnet, sizeof ifnet))
530 break;
3e4a09e7 531 strlcpy(name, ifnet.if_xname, sizeof(name));
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532 if (interface && strcmp(name, interface) == 0) {
533 interesting = ip;
534 interesting_off = off;
535 }
fc6d0222 536 snprintf(ip->ift_name, 16, "(%s)", name);
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537 if ((ipn = malloc(sizeof(struct iftot))) == NULL) {
538 printf("malloc failed\n");
539 exit(1);
540 }
541 memset(ipn, 0, sizeof(struct iftot));
542 SLIST_NEXT(ip, chain) = ipn;
543 ip = ipn;
544 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
545 }
546 if ((total = malloc(sizeof(struct iftot))) == NULL) {
547 printf("malloc failed\n");
548 exit(1);
549 }
550 memset(total, 0, sizeof(struct iftot));
551 if ((sum = malloc(sizeof(struct iftot))) == NULL) {
552 printf("malloc failed\n");
553 exit(1);
554 }
555 memset(sum, 0, sizeof(struct iftot));
556
557
558 (void)signal(SIGALRM, catchalarm);
559 signalled = NO;
b82e1528 560 (void)alarm(interval1);
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561 first = 1;
562banner:
563 printf("%17s %14s %16s", "input",
564 interesting ? interesting->ift_name : "(Total)", "output");
565 putchar('\n');
566 printf("%10s %5s %10s %10s %5s %10s %5s",
567 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
568 if (dflag)
569 printf(" %5.5s", "drops");
570 putchar('\n');
571 fflush(stdout);
572 line = 0;
573loop:
574 if (interesting != NULL) {
575 ip = interesting;
576 if (kread(interesting_off, (char *)&ifnet, sizeof ifnet)) {
577 printf("???\n");
578 exit(1);
579 };
580 if (!first) {
581 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
582 ifnet.if_ipackets - ip->ift_ip,
583 ifnet.if_ierrors - ip->ift_ie,
584 ifnet.if_ibytes - ip->ift_ib,
585 ifnet.if_opackets - ip->ift_op,
586 ifnet.if_oerrors - ip->ift_oe,
587 ifnet.if_obytes - ip->ift_ob,
588 ifnet.if_collisions - ip->ift_co);
589 if (dflag)
590 printf(" %5u", ifnet.if_snd.ifq_drops - ip->ift_dr);
591 }
592 ip->ift_ip = ifnet.if_ipackets;
593 ip->ift_ie = ifnet.if_ierrors;
594 ip->ift_ib = ifnet.if_ibytes;
595 ip->ift_op = ifnet.if_opackets;
596 ip->ift_oe = ifnet.if_oerrors;
597 ip->ift_ob = ifnet.if_obytes;
598 ip->ift_co = ifnet.if_collisions;
599 ip->ift_dr = ifnet.if_snd.ifq_drops;
600 } else {
601 sum->ift_ip = 0;
602 sum->ift_ie = 0;
603 sum->ift_ib = 0;
604 sum->ift_op = 0;
605 sum->ift_oe = 0;
606 sum->ift_ob = 0;
607 sum->ift_co = 0;
608 sum->ift_dr = 0;
609 for (off = firstifnet, ip = iftot;
610 off && SLIST_NEXT(ip, chain) != NULL;
611 ip = SLIST_NEXT(ip, chain)) {
612 if (kread(off, (char *)&ifnet, sizeof ifnet)) {
613 off = 0;
614 continue;
615 }
616 sum->ift_ip += ifnet.if_ipackets;
617 sum->ift_ie += ifnet.if_ierrors;
618 sum->ift_ib += ifnet.if_ibytes;
619 sum->ift_op += ifnet.if_opackets;
620 sum->ift_oe += ifnet.if_oerrors;
621 sum->ift_ob += ifnet.if_obytes;
622 sum->ift_co += ifnet.if_collisions;
623 sum->ift_dr += ifnet.if_snd.ifq_drops;
624 off = (u_long)TAILQ_NEXT(&ifnet, if_link);
625 }
626 if (!first) {
627 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
628 sum->ift_ip - total->ift_ip,
629 sum->ift_ie - total->ift_ie,
630 sum->ift_ib - total->ift_ib,
631 sum->ift_op - total->ift_op,
632 sum->ift_oe - total->ift_oe,
633 sum->ift_ob - total->ift_ob,
634 sum->ift_co - total->ift_co);
635 if (dflag)
636 printf(" %5u", sum->ift_dr - total->ift_dr);
637 }
638 *total = *sum;
639 }
640 if (!first)
641 putchar('\n');
642 fflush(stdout);
643 oldmask = sigblock(sigmask(SIGALRM));
644 if (! signalled) {
645 sigpause(0);
646 }
647 sigsetmask(oldmask);
648 signalled = NO;
b82e1528 649 (void)alarm(interval1);
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650 line++;
651 first = 0;
652 if (line == 21)
653 goto banner;
654 else
655 goto loop;
656 /*NOTREACHED*/
657}
658
659/*
660 * Called if an interval expires before sidewaysintpr has completed a loop.
661 * Sets a flag to not wait for the alarm.
662 */
663static void
664catchalarm(int signo __unused)
665{
666 signalled = YES;
667}