1/*
2 * Copyright (c) 1983, 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.
32 */
33
34/*
35 * 951109 - Andrew@pubnix.net - Changed to iterative buffer growing mechanism
36 * for ifconfig -a so all interfaces are queried.
37 *
38 * 960101 - peter@freebsd.org - Blow away the SIOCGIFCONF code and use
39 * sysctl() to get the structured interface conf
40 * and parse the messages in there. REALLY UGLY!
41 */
42#ifndef lint
43static char copyright[] =
44"@(#) Copyright (c) 1983, 1993\n\
45 The Regents of the University of California. All rights reserved.\n";
46#endif /* not lint */
47
48#ifndef lint
49static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
50#endif /* not lint */
51
52#include <sys/param.h>
53#include <sys/socket.h>
54#include <sys/ioctl.h>
55#include <sys/sysctl.h>
56
57#include <net/if.h>
58#include <net/if_dl.h>
59#include <net/if_types.h>
60#include <net/route.h>
61#include <netinet/in.h>
62#include <netinet/in_var.h>
63#include <arpa/inet.h>
64#include <netdb.h>
65
66#define IPXIP
67#define IPTUNNEL
68#include <netipx/ipx.h>
69#include <netipx/ipx_if.h>
70
71#include <netatalk/at.h>
72
73#ifdef NS
74#define NSIP
75#include <netns/ns.h>
76#include <netns/ns_if.h>
77#endif
78
79#ifdef ISO
80#define EON
81#include <netiso/iso.h>
82#include <netiso/iso_var.h>
83#endif
84#include <sys/protosw.h>
85
86#include <ctype.h>
87#include <err.h>
88#include <errno.h>
89#include <stdio.h>
90#include <stdlib.h>
91#include <string.h>
92#include <unistd.h>
93#include <nlist.h>
94#include <kvm.h>
95#include <fcntl.h>
96
97struct ifreq ifr, ridreq;
98struct ifaliasreq addreq;
99#ifdef ISO
100struct iso_ifreq iso_ridreq;
101struct iso_aliasreq iso_addreq;
102#endif
103struct sockaddr_in netmask;
104struct netrange at_nr; /* AppleTalk net range */
105
106char name[32];
107int flags;
108int metric;
109int mtu;
110#ifdef ISO
111int nsellength = 1;
112#endif
113int setaddr;
114int setipdst;
115int doalias;
116int clearaddr;
117int newaddr = 1;
118int s;
119kvm_t *kvmd;
120extern int errno;
121
122int setifflags(), setifaddr(), setifdstaddr(), setifnetmask();
123int setifmetric(), setifmtu(), setifbroadaddr(), setifipdst();
124int setatrange(), setatphase(), checkatrange();
125int notealias();
126#ifdef ISO
127int setsnpaoffset(), setnsellength();
128#endif
129int notrailers();
130
131#define NEXTARG 0xffffff
132
133struct cmd {
134 char *c_name;
135 int c_parameter; /* NEXTARG means next argv */
136 int (*c_func)();
137} cmds[] = {
138 { "up", IFF_UP, setifflags } ,
139 { "down", -IFF_UP, setifflags },
140 { "trailers", -1, notrailers },
141 { "-trailers", 1, notrailers },
142 { "arp", -IFF_NOARP, setifflags },
143 { "-arp", IFF_NOARP, setifflags },
144 { "debug", IFF_DEBUG, setifflags },
145 { "-debug", -IFF_DEBUG, setifflags },
146 { "alias", IFF_UP, notealias },
147 { "-alias", -IFF_UP, notealias },
148 { "delete", -IFF_UP, notealias },
149#ifdef notdef
150#define EN_SWABIPS 0x1000
151 { "swabips", EN_SWABIPS, setifflags },
152 { "-swabips", -EN_SWABIPS, setifflags },
153#endif
154 { "netmask", NEXTARG, setifnetmask },
155 { "range", NEXTARG, setatrange },
156 { "phase", NEXTARG, setatphase },
157 { "metric", NEXTARG, setifmetric },
158 { "broadcast", NEXTARG, setifbroadaddr },
159 { "ipdst", NEXTARG, setifipdst },
160#ifdef ISO
161 { "snpaoffset", NEXTARG, setsnpaoffset },
162 { "nsellength", NEXTARG, setnsellength },
163#endif
164 { "link0", IFF_LINK0, setifflags },
165 { "-link0", -IFF_LINK0, setifflags },
166 { "link1", IFF_LINK1, setifflags },
167 { "-link1", -IFF_LINK1, setifflags },
168 { "link2", IFF_LINK2, setifflags },
169 { "-link2", -IFF_LINK2, setifflags },
170 { "normal", -IFF_LINK0, setifflags },
171 { "compress", IFF_LINK0, setifflags },
172 { "noicmp", IFF_LINK1, setifflags },
173 { "mtu", NEXTARG, setifmtu },
174 { 0, 0, setifaddr },
175 { 0, 0, setifdstaddr },
176};
177
178/*
179 * XNS support liberally adapted from code written at the University of
180 * Maryland principally by James O'Toole and Chris Torek.
181 */
182int in_status(), in_getaddr();
183int ipx_status(), ipx_getaddr();
184int at_status(), at_getaddr();
185#ifdef NS
186int xns_status(), xns_getaddr();
187#endif
188#ifdef ISO
189int iso_status(), iso_getaddr();
190#endif
191int ether_status();
192
193/* Known address families */
194struct afswtch {
195 char *af_name;
196 short af_af;
197 int (*af_status)();
198 int (*af_getaddr)();
199 int af_difaddr;
200 int af_aifaddr;
201 caddr_t af_ridreq;
202 caddr_t af_addreq;
203} afs[] = {
204#define C(x) ((caddr_t) &x)
205 { "inet", AF_INET, in_status, in_getaddr,
206 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
207 { "ipx", AF_IPX, ipx_status, ipx_getaddr,
208 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
209 { "atalk", AF_APPLETALK, at_status, at_getaddr,
210 SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) },
211#ifdef NS
212 { "ns", AF_NS, xns_status, xns_getaddr,
213 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
214#endif
215#ifdef ISO
216 { "iso", AF_ISO, iso_status, iso_getaddr,
217 SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) },
218#endif
219 { "ether", AF_INET, ether_status, NULL }, /* XXX not real!! */
220 { 0, 0, 0, 0 }
221};
222
223struct afswtch *afp; /*the address family being set or asked about*/
224
225void rt_xaddrs __P((caddr_t, caddr_t, struct rt_addrinfo *));
226int ifconfig __P((int argc, char *argv[], int af, struct afswtch *rafp));
227
228
229/*
230 * Expand the compacted form of addresses as returned via the
231 * configuration read via sysctl().
232 */
233
234#define ROUNDUP(a) \
235 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
236#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
237
238void
239rt_xaddrs(cp, cplim, rtinfo)
240 caddr_t cp, cplim;
241 struct rt_addrinfo *rtinfo;
242{
243 struct sockaddr *sa;
244 int i;
245
246 memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info));
247 for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) {
248 if ((rtinfo->rti_addrs & (1 << i)) == 0)
249 continue;
250 rtinfo->rti_info[i] = sa = (struct sockaddr *)cp;
251 ADVANCE(cp, sa);
252 }
253}
254
255
256/*
257 * Grunge for new-style sysctl() decoding.. :-(
258 * Apologies to the world for committing gross things like this in 1996..
259 */
260struct if_msghdr *ifm;
261struct ifa_msghdr *ifam;
262struct sockaddr_dl *sdl;
263struct rt_addrinfo info;
264char *buf, *lim, *next;
265
266
267
268main(argc, argv)
269 int argc;
270 char *argv[];
271{
272 int af = AF_INET;
273 struct afswtch *rafp;
274
275 size_t needed;
276 int mib[6], len;
277 int all;
278
279 if (argc < 2) {
280 fprintf(stderr, "usage: ifconfig interface\n%s%s%s%s%s%s%s",
281 "\t[ af [ address [ dest_addr ] ] [ up ] [ down ]",
282 "[ netmask mask ] ]\n",
283 "\t[ metric n ]\n",
284 "\t[ mtu n ]\n",
285 "\t[ arp | -arp ]\n",
286 "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ] \n",
287 "\t[ -a ] [ -ad ] [ -au ]\n");
288 exit(1);
289 }
290 argc--, argv++;
291 strncpy(name, *argv, sizeof(name));
292 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
293 argc--, argv++;
294 if (argc > 0) {
295 for (afp = rafp = afs; rafp->af_name; rafp++)
296 if (strcmp(rafp->af_name, *argv) == 0) {
297 afp = rafp; argc--; argv++;
298 break;
299 }
300 rafp = afp;
301 af = ifr.ifr_addr.sa_family = rafp->af_af;
302 }
303
304 mib[0] = CTL_NET;
305 mib[1] = PF_ROUTE;
306 mib[2] = 0;
307 mib[3] = 0; /* address family */
308 mib[4] = NET_RT_IFLIST;
309 mib[5] = 0;
310
311 /* if particular family specified, only ask about it */
312 if (afp) {
313 mib[3] = afp->af_af;
314 }
315
316 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
317 errx(1, "iflist-sysctl-estimate");
318 if ((buf = malloc(needed)) == NULL)
319 errx(1, "malloc");
320 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
321 errx(1, "actual retrieval of interface table");
322 lim = buf + needed;
323
324 all = 0;
325 if (strcmp(name, "-a") == 0)
326 all = 1; /* All interfaces */
327 else if (strcmp(name, "-au") == 0)
328 all = 2; /* All IFF_UPinterfaces */
329 else if (strcmp(name, "-ad") == 0)
330 all = 3; /* All !IFF_UP interfaces */
331
332 for (next = buf; next < lim; next += ifm->ifm_msglen) {
333
334 ifm = (struct if_msghdr *)next;
335
336 /* XXX: Swallow up leftover NEWADDR messages */
337 if (ifm->ifm_type == RTM_NEWADDR)
338 continue;
339
340 if (ifm->ifm_type == RTM_IFINFO) {
341 sdl = (struct sockaddr_dl *)(ifm + 1);
342 flags = ifm->ifm_flags;
343 } else {
344 errx(1, "out of sync parsing NET_RT_IFLIST");
345 }
346
347 switch(all) {
348 case -1:
349 case 0:
350 if (strlen(name) != sdl->sdl_nlen)
351 continue; /* not same len */
352 if (strncmp(name, sdl->sdl_data, sdl->sdl_nlen) != 0)
353 continue; /* not same name */
354 break;
355 case 1:
356 break; /* always do it */
357 case 2:
358 if ((flags & IFF_UP) == 0)
359 continue; /* not up */
360 break;
361 case 3:
362 if (flags & IFF_UP)
363 continue; /* not down */
364 break;
365 }
366
367 if (all > 0) {
368 strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
369 name[sdl->sdl_nlen] = '\0';
370 }
371
372 if ((s = socket(af, SOCK_DGRAM, 0)) < 0) {
373 perror("ifconfig: socket");
374 exit(1);
375 }
376
377 ifconfig(argc,argv,af,rafp);
378
379 close(s);
380
381 if (all == 0) {
382 all = -1; /* flag it as 'done' */
383 break;
384 }
385 }
386 free(buf);
387
388 if (all == 0)
389 errx(1, "interface %s does not exist", name);
390
391
392 exit (0);
393}
394
395
396
397int
398ifconfig(argc,argv,af,rafp)
399 int argc;
400 char *argv[];
401 int af;
402 struct afswtch *rafp;
403{
404
405 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
406
407 if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
408 perror("ioctl (SIOCGIFMETRIC)");
409 else
410 metric = ifr.ifr_metric;
411
412 if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) < 0)
413 perror("ioctl (SIOCGIFMTU)");
414 else
415 mtu = ifr.ifr_mtu;
416
417 if (argc == 0) {
418 status();
419 return(0);
420 }
421
422 while (argc > 0) {
423 register struct cmd *p;
424
425 for (p = cmds; p->c_name; p++)
426 if (strcmp(*argv, p->c_name) == 0)
427 break;
428 if (p->c_name == 0 && setaddr)
429 p++; /* got src, do dst */
430 if (p->c_func) {
431 if (p->c_parameter == NEXTARG) {
432 if (argv[1] == NULL)
433 errx(1, "'%s' requires argument",
434 p->c_name);
435 (*p->c_func)(argv[1]);
436 argc--, argv++;
437 } else
438 (*p->c_func)(*argv, p->c_parameter);
439 }
440 argc--, argv++;
441 }
442#ifdef ISO
443 if (af == AF_ISO)
444 adjust_nsellength();
445#endif
446 if (setipdst && af==AF_IPX) {
447 struct ipxip_req rq;
448 int size = sizeof(rq);
449
450 rq.rq_ipx = addreq.ifra_addr;
451 rq.rq_ip = addreq.ifra_dstaddr;
452
453 if (setsockopt(s, 0, SO_IPXIP_ROUTE, &rq, size) < 0)
454 Perror("Encapsulation Routing");
455 }
456 if (af == AF_APPLETALK)
457 checkatrange((struct sockaddr_at *) &addreq.ifra_addr);
458#ifdef NS
459 if (setipdst && af==AF_NS) {
460 struct nsip_req rq;
461 int size = sizeof(rq);
462
463 rq.rq_ns = addreq.ifra_addr;
464 rq.rq_ip = addreq.ifra_dstaddr;
465
466 if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
467 Perror("Encapsulation Routing");
468 }
469#endif
470 if (clearaddr) {
471 if (rafp->af_ridreq == NULL || rafp->af_difaddr == 0) {
472 warnx("interface %s cannot change %s addresses!",
473 name, rafp->af_name);
474 clearaddr = NULL;
475 }
476 }
477 if (clearaddr) {
478 int ret;
479 strncpy(rafp->af_ridreq, name, sizeof ifr.ifr_name);
480 if ((ret = ioctl(s, rafp->af_difaddr, rafp->af_ridreq)) < 0) {
481 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
482 /* means no previous address for interface */
483 } else
484 Perror("ioctl (SIOCDIFADDR)");
485 }
486 }
487 if (newaddr) {
488 if (rafp->af_ridreq == NULL || rafp->af_difaddr == 0) {
489 warnx("interface %s cannot change %s addresses!",
490 name, rafp->af_name);
491 newaddr = NULL;
492 }
493 }
494 if (newaddr) {
495 strncpy(rafp->af_addreq, name, sizeof ifr.ifr_name);
496 if (ioctl(s, rafp->af_aifaddr, rafp->af_addreq) < 0)
497 Perror("ioctl (SIOCAIFADDR)");
498 }
499 return(0);
500}
501#define RIDADDR 0
502#define ADDR 1
503#define MASK 2
504#define DSTADDR 3
505
506/*ARGSUSED*/
507setifaddr(addr, param)
508 char *addr;
509 short param;
510{
511 /*
512 * Delay the ioctl to set the interface addr until flags are all set.
513 * The address interpretation may depend on the flags,
514 * and the flags may change when the address is set.
515 */
516 setaddr++;
517 if (doalias == 0)
518 clearaddr = 1;
519 (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
520}
521
522setifnetmask(addr)
523 char *addr;
524{
525 (*afp->af_getaddr)(addr, MASK);
526}
527
528setifbroadaddr(addr)
529 char *addr;
530{
531 (*afp->af_getaddr)(addr, DSTADDR);
532}
533
534setifipdst(addr)
535 char *addr;
536{
537 in_getaddr(addr, DSTADDR);
538 setipdst++;
539 clearaddr = 0;
540 newaddr = 0;
541}
542#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
543/*ARGSUSED*/
544notealias(addr, param)
545 char *addr;
546{
547 if (setaddr && doalias == 0 && param < 0)
548 bcopy((caddr_t)rqtosa(af_addreq),
549 (caddr_t)rqtosa(af_ridreq),
550 rqtosa(af_addreq)->sa_len);
551 doalias = param;
552 if (param < 0) {
553 clearaddr = 1;
554 newaddr = 0;
555 } else
556 clearaddr = 0;
557}
558
559/*ARGSUSED*/
560notrailers(vname, value)
561 char *vname;
562 int value;
563{
564 printf("Note: trailers are no longer sent, but always received\n");
565}
566
567/*ARGSUSED*/
568setifdstaddr(addr, param)
569 char *addr;
570 int param;
571{
572 (*afp->af_getaddr)(addr, DSTADDR);
573}
574
575setifflags(vname, value)
576 char *vname;
577 short value;
578{
579 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
580 Perror("ioctl (SIOCGIFFLAGS)");
581 exit(1);
582 }
583 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
584 flags = ifr.ifr_flags;
585
586 if (value < 0) {
587 value = -value;
588 flags &= ~value;
589 } else
590 flags |= value;
591 ifr.ifr_flags = flags;
592 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0)
593 Perror(vname);
594}
595
596setifmetric(val)
597 char *val;
598{
599 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
600 ifr.ifr_metric = atoi(val);
601 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
602 perror("ioctl (set metric)");
603}
604
605setifmtu(val)
606 char *val;
607{
608 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
609 ifr.ifr_mtu = atoi(val);
610 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
611 perror("ioctl (set mtu)");
612}
613
614#ifdef ISO
615setsnpaoffset(val)
616 char *val;
617{
618 iso_addreq.ifra_snpaoffset = atoi(val);
619}
620#endif
621
622#define IFFBITS \
623"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
624\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST"
625
626/*
627 * Print the status of the interface. If an address family was
628 * specified, show it and it only; otherwise, show them all.
629 */
630status()
631{
632 struct afswtch *p = NULL;
633 short af = ifr.ifr_addr.sa_family;
634 char *mynext;
635 struct if_msghdr *myifm;
636
637 printf("%s: ", name);
638 printb("flags", flags, IFFBITS);
639 if (metric)
640 printf(" metric %d", metric);
641 if (mtu)
642 printf(" mtu %d", mtu);
643 putchar('\n');
644
645 /*
646 * XXX: Sigh. This is bad, I know. At this point, we may have
647 * *zero* RTM_NEWADDR's, so we have to "feel the water" before
648 * incrementing the loop. One day, I might feel inspired enough
649 * to get the top level loop to pass a count down here so we
650 * dont have to mess with this. -Peter
651 */
652 myifm = ifm;
653
654 while (1) {
655
656 mynext = next + ifm->ifm_msglen;
657
658 if (mynext >= lim)
659 break;
660
661 myifm = (struct if_msghdr *)mynext;
662
663 if (myifm->ifm_type != RTM_NEWADDR)
664 break;
665
666 next = mynext;
667
668 ifm = (struct if_msghdr *)next;
669
670 ifam = (struct ifa_msghdr *)myifm;
671 info.rti_addrs = ifam->ifam_addrs;
672
673 /* Expand the compacted addresses */
674 rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam,
675 &info);
676
677 if (afp) {
678 if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family &&
679 afp->af_status != ether_status) {
680 p = afp;
681 if (p->af_status != ether_status)
682 (*p->af_status)(1);
683 }
684 } else for (p = afs; p->af_name; p++) {
685 if (p->af_af == info.rti_info[RTAX_IFA]->sa_family &&
686 p->af_status != ether_status)
687 (*p->af_status)(0);
688 }
689 }
690 if (afp == NULL || afp->af_status == ether_status)
691 ether_status();
692 else if (afp && !p) {
693 warnx("%s has no %s IFA address!", name, afp->af_name);
694 }
695}
696
697in_status(force)
698 int force;
699{
700 struct sockaddr_in *sin, null_sin;
701 char *inet_ntoa();
702
703
704 memset(&null_sin, 0, sizeof(null_sin));
705
706 sin = (struct sockaddr_in *)info.rti_info[RTAX_IFA];
707 if (!sin || sin->sin_family != AF_INET) {
708 if (!force)
709 return;
710 /* warnx("%s has no AF_INET IFA address!", name); */
711 sin = &null_sin;
712 }
713 printf("\tinet %s ", inet_ntoa(sin->sin_addr));
714
715 if (flags & IFF_POINTOPOINT) {
716 /* note RTAX_BRD overlap with IFF_BROADCAST */
717 sin = (struct sockaddr_in *)info.rti_info[RTAX_BRD];
718 if (!sin)
719 sin = &null_sin;
720 printf("--> %s ", inet_ntoa(sin->sin_addr));
721 }
722
723 sin = (struct sockaddr_in *)info.rti_info[RTAX_NETMASK];
724 if (!sin)
725 sin = &null_sin;
726 printf("netmask 0x%x ", ntohl(sin->sin_addr.s_addr));
727
728 if (flags & IFF_BROADCAST) {
729 /* note RTAX_BRD overlap with IFF_POINTOPOINT */
730 sin = (struct sockaddr_in *)info.rti_info[RTAX_BRD];
731 if (sin && sin->sin_addr.s_addr != 0)
732 printf("broadcast %s", inet_ntoa(sin->sin_addr));
733 }
734 putchar('\n');
735}
736
737ipx_status(force)
738 int force;
739{
740 struct sockaddr_ipx *sipx, null_sipx;
741
742 close(s);
743 s = socket(AF_IPX, SOCK_DGRAM, 0);
744 if (s < 0) {
745 if (errno == EPROTONOSUPPORT)
746 return;
747 perror("ifconfig: socket");
748 exit(1);
749 }
750
751 memset(&null_sipx, 0, sizeof(null_sipx));
752
753 sipx = (struct sockaddr_ipx *)info.rti_info[RTAX_IFA];
754 if (!sipx || sipx->sipx_family != AF_IPX) {
755 if (!force)
756 return;
757 warnx("%s has no AF_IPX IFA address!", name);
758 sipx = &null_sipx;
759 }
760 printf("\tipx %s ", ipx_ntoa(sipx->sipx_addr));
761
762 if (flags & IFF_POINTOPOINT) {
763 sipx = (struct sockaddr_ipx *)info.rti_info[RTAX_BRD];
764 if (!sipx)
765 sipx = &null_sipx;
766 printf("--> %s ", ipx_ntoa(sipx->sipx_addr));
767 }
768 putchar('\n');
769
770}
771
772at_status(force)
773 int force;
774{
775 struct sockaddr_at *sat, null_sat;
776 struct netrange *nr;
777
778 memset(&null_sat, 0, sizeof(null_sat));
779
780 sat = (struct sockaddr_at *)info.rti_info[RTAX_IFA];
781 if (!sat || sat->sat_family != AF_APPLETALK) {
782 if (!force)
783 return;
784 sat = &null_sat;
785 }
786 nr = (struct netrange *) &sat->sat_zero;
787 printf("\tatalk %d.%d range %d-%d phase %d",
788 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
789 ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase);
790 if (flags & IFF_POINTOPOINT) {
791 /* note RTAX_BRD overlap with IFF_BROADCAST */
792 sat = (struct sockaddr_at *)info.rti_info[RTAX_BRD];
793 if (!sat)
794 sat = &null_sat;
795 printf("--> %d.%d",
796 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node);
797 }
798 if (flags & IFF_BROADCAST) {
799 /* note RTAX_BRD overlap with IFF_POINTOPOINT */
800 sat = (struct sockaddr_at *)info.rti_info[RTAX_BRD];
801 if (sat)
802 printf(" broadcast %d.%d",
803 ntohs(sat->sat_addr.s_net),
804 sat->sat_addr.s_node);
805 }
806
807 putchar('\n');
808}
809
810#ifdef NS
811xns_status(force)
812 int force;
813{
814 struct sockaddr_ns *sns, null_sns;
815
816 close(s);
817 s = socket(AF_NS, SOCK_DGRAM, 0);
818 if (s < 0) {
819 if (errno == EPROTONOSUPPORT)
820 return;
821 perror("ifconfig: socket");
822 exit(1);
823 }
824 memset(&null_sns, 0, sizeof(null_sns));
825
826 sns = (struct sockaddr_ns *)info.rti_info[RTAX_IFA];
827 if (!sns || sns->sns_family != AF_NS) {
828 if (!force)
829 return;
830 /* warnx("%s has no AF_NS IFA address!", name); */
831 sns = &null_sns;
832 }
833 printf("\tns %s ", ns_ntoa(sns->sns_addr));
834
835 if (flags & IFF_POINTOPOINT) {
836 sns = (struct sockaddr_ns *)info.rti_info[RTAX_BRD];
837 if (!sns)
838 sns = &null_sns;
839 printf("--> %s ", ns_ntoa(sns->sns_addr));
840 }
841
842 putchar('\n');
843}
844#endif
845
846#ifdef ISO
847iso_status(force)
848 int force;
849{
850 struct sockaddr_iso *siso, null_siso;
851
852 close(s);
853 s = socket(AF_ISO, SOCK_DGRAM, 0);
854 if (s < 0) {
855 if (errno == EPROTONOSUPPORT)
856 return;
857 perror("ifconfig: socket");
858 exit(1);
859 }
860
861 memset(&null_siso, 0, sizeof(null_siso));
862
863 siso = (struct sockaddr_iso *)info.rti_info[RTAX_IFA];
864 if (!siso || siso->siso_family != AF_ISO) {
865 if (!force)
866 return;
867 /* warnx("%s has no AF_ISO IFA address!", name); */
868 siso = &null_siso;
869 }
870 printf("\tiso %s ", iso_ntoa(&siso->siso_addr));
871
872 /* XXX: is this right? is the ISO netmask meant to be before P2P? */
873 siso = (struct sockaddr_iso *)info.rti_info[RTAX_NETMASK];
874 if (siso)
875 printf(" netmask %s ", iso_ntoa(&siso->siso_addr));
876
877 if (flags & IFF_POINTOPOINT) {
878 siso = (struct sockaddr_iso *)info.rti_info[RTAX_BRD];
879 if (!siso)
880 siso = &null_siso;
881 printf("--> %s ", iso_ntoa(&siso->siso_addr));
882 }
883
884 putchar('\n');
885}
886#endif
887
888ether_status()
889{
890 char *cp;
891 int n;
892
893 cp = (char *)LLADDR(sdl);
894 if ((n = sdl->sdl_alen) > 0) {
895 if (sdl->sdl_type == IFT_ETHER)
896 printf ("\tether ");
897 else
898 printf ("\tlladdr ");
899 while (--n >= 0)
900 printf("%02x%c",*cp++ & 0xff, n>0? ':' : ' ');
901 putchar('\n');
902 }
903}
904
905Perror(cmd)
906 char *cmd;
907{
908 extern int errno;
909
910 switch (errno) {
911
912 case ENXIO:
913 errx(1, "%s: no such interface", cmd);
914 break;
915
916 case EPERM:
917 errx(1, "%s: permission denied", cmd);
918 break;
919
920 default:
921 err(1, "%s", cmd);
922 }
923}
924
925struct in_addr inet_makeaddr();
926
927#define SIN(x) ((struct sockaddr_in *) &(x))
928struct sockaddr_in *sintab[] = {
929SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr),
930SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};
931
932in_getaddr(s, which)
933 char *s;
934{
935 register struct sockaddr_in *sin = sintab[which];
936 struct hostent *hp;
937 struct netent *np;
938 int val;
939
940 sin->sin_len = sizeof(*sin);
941 if (which != MASK)
942 sin->sin_family = AF_INET;
943
944 if (inet_aton(s, &sin->sin_addr))
945 ;
946 else if (hp = gethostbyname(s))
947 bcopy(hp->h_addr, (char *)&sin->sin_addr, hp->h_length);
948 else if (np = getnetbyname(s))
949 sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
950 else
951 errx(1, "%s: bad value", s);
952}
953
954/*
955 * Print a value a la the %b format of the kernel's printf
956 */
957printb(s, v, bits)
958 char *s;
959 register char *bits;
960 register unsigned short v;
961{
962 register int i, any = 0;
963 register char c;
964
965 if (bits && *bits == 8)
966 printf("%s=%o", s, v);
967 else
968 printf("%s=%x", s, v);
969 bits++;
970 if (bits) {
971 putchar('<');
972 while (i = *bits++) {
973 if (v & (1 << (i-1))) {
974 if (any)
975 putchar(',');
976 any = 1;
977 for (; (c = *bits) > 32; bits++)
978 putchar(c);
979 } else
980 for (; *bits > 32; bits++)
981 ;
982 }
983 putchar('>');
984 }
985}
986
987#define SIPX(x) ((struct sockaddr_ipx *) &(x))
988struct sockaddr_ipx *sipxtab[] = {
989SIPX(ridreq.ifr_addr), SIPX(addreq.ifra_addr),
990SIPX(addreq.ifra_mask), SIPX(addreq.ifra_broadaddr)};
991
992ipx_getaddr(addr, which)
993char *addr;
994{
995 struct sockaddr_ipx *sipx = sipxtab[which];
996 struct ipx_addr ipx_addr();
997
998 sipx->sipx_family = AF_IPX;
999 sipx->sipx_len = sizeof(*sipx);
1000 sipx->sipx_addr = ipx_addr(addr);
1001 if (which == MASK)
1002 printf("Attempt to set IPX netmask will be ineffectual\n");
1003}
1004
1005at_getaddr(char *addr, int which)
1006{
1007 struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr;
1008 u_int net, node;
1009
1010 sat->sat_family = AF_APPLETALK;
1011 sat->sat_len = sizeof(*sat);
1012 if (which == MASK)
1013 errx(1, "AppleTalk does not use netmasks\n");
1014 if (sscanf(addr, "%u.%u", &net, &node) != 2
1015 || net == 0 || net > 0xffff || node == 0 || node > 0xfe)
1016 errx(1, "%s: illegal address", addr);
1017 sat->sat_addr.s_net = htons(net);
1018 sat->sat_addr.s_node = node;
1019}
1020
1021setatrange(char *range)
1022{
1023 u_short first = 123, last = 123;
1024
1025 if (sscanf(range, "%hu-%hu", &first, &last) != 2
1026 || first == 0 || first > 0xffff
1027 || last == 0 || last > 0xffff || first > last)
1028 errx(1, "%s: illegal net range: %u-%u", range, first, last);
1029 at_nr.nr_firstnet = htons(first);
1030 at_nr.nr_lastnet = htons(last);
1031}
1032
1033setatphase(char *phase)
1034{
1035 if (!strcmp(phase, "1"))
1036 at_nr.nr_phase = 1;
1037 else if (!strcmp(phase, "2"))
1038 at_nr.nr_phase = 2;
1039 else
1040 errx(1, "%s: illegal phase", phase);
1041}
1042
1043checkatrange(struct sockaddr_at *sat)
1044{
1045 if (at_nr.nr_phase == 0)
1046 at_nr.nr_phase = 2; /* Default phase 2 */
1047 if (at_nr.nr_firstnet == 0)
1048 at_nr.nr_firstnet = /* Default range of one */
1049 at_nr.nr_lastnet = sat->sat_addr.s_net;
1050printf("\tatalk %d.%d range %d-%d phase %d\n",
1051 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node,
1052 ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase);
1053 if ((u_short) ntohs(at_nr.nr_firstnet) >
1054 (u_short) ntohs(sat->sat_addr.s_net)
1055 || (u_short) ntohs(at_nr.nr_lastnet) <
1056 (u_short) ntohs(sat->sat_addr.s_net))
1057 errx(1, "AppleTalk address is not in range");
1058 *((struct netrange *) &sat->sat_zero) = at_nr;
1059}
1060
1061#ifdef NS
1062#define SNS(x) ((struct sockaddr_ns *) &(x))
1063struct sockaddr_ns *snstab[] = {
1064SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr),
1065SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)};
1066
1067xns_getaddr(addr, which)
1068char *addr;
1069{
1070 struct sockaddr_ns *sns = snstab[which];
1071 struct ns_addr ns_addr();
1072
1073 sns->sns_family = AF_NS;
1074 sns->sns_len = sizeof(*sns);
1075 sns->sns_addr = ns_addr(addr);
1076 if (which == MASK)
1077 printf("Attempt to set XNS netmask will be ineffectual\n");
1078}
1079#endif
1080
1081#ifdef ISO
1082#define SISO(x) ((struct sockaddr_iso *) &(x))
1083struct sockaddr_iso *sisotab[] = {
1084SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr),
1085SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)};
1086
1087iso_getaddr(addr, which)
1088char *addr;
1089{
1090 register struct sockaddr_iso *siso = sisotab[which];
1091 struct iso_addr *iso_addr();
1092 siso->siso_addr = *iso_addr(addr);
1093
1094 if (which == MASK) {
1095 siso->siso_len = TSEL(siso) - (caddr_t)(siso);
1096 siso->siso_nlen = 0;
1097 } else {
1098 siso->siso_len = sizeof(*siso);
1099 siso->siso_family = AF_ISO;
1100 }
1101}
1102
1103setnsellength(val)
1104 char *val;
1105{
1106 nsellength = atoi(val);
1107 if (nsellength < 0)
1108 errx(1, "Negative NSEL length is absurd");
1109 if (afp == 0 || afp->af_af != AF_ISO)
1110 errx(1, "Setting NSEL length valid only for iso");
1111}
1112
1113fixnsel(s)
1114register struct sockaddr_iso *s;
1115{
1116 if (s->siso_family == 0)
1117 return;
1118 s->siso_tlen = nsellength;
1119}
1120
1121adjust_nsellength()
1122{
1123 fixnsel(sisotab[RIDADDR]);
1124 fixnsel(sisotab[ADDR]);
1125 fixnsel(sisotab[DSTADDR]);
1126}
1127#endif