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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 #ifndef lint
35 static const char copyright[] =
36 "@(#) Copyright (c) 1983, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38 #endif /* not lint */
39
40 #ifndef lint
41 #if 0
42 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
43 #endif
44 static const char rcsid[] =
45 "$Id: ifconfig.c,v 1.8 2004/08/26 23:55:21 lindak Exp $";
46 #endif /* not lint */
47
48 #include <sys/param.h>
49 #define KERNEL_PRIVATE
50 #include <sys/ioctl.h>
51 #undef KERNEL_PRIVATE
52 #include <sys/socket.h>
53 #include <sys/sysctl.h>
54 #include <sys/time.h>
55
56 #include <net/ethernet.h>
57 #include <net/if.h>
58 #include <net/if_var.h>
59 #include <net/if_dl.h>
60 #include <net/if_types.h>
61 #include <net/route.h>
62
63 /* IP */
64 #include <netinet/in.h>
65 #include <netinet/in_var.h>
66 #include <arpa/inet.h>
67 #include <netdb.h>
68
69 #ifdef INET6
70 #include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */
71 #endif
72
73
74 /* XNS */
75 #ifdef NS
76 #define NSIP
77 #include <netns/ns.h>
78 #include <netns/ns_if.h>
79 #endif
80 /* OSI */
81
82 #include <ctype.h>
83 #include <err.h>
84 #include <errno.h>
85 #include <fcntl.h>
86 #include <stdio.h>
87 #include <stdlib.h>
88 #include <string.h>
89 #include <unistd.h>
90
91
92 #include "ifconfig.h"
93
94 /* wrapper for KAME-special getnameinfo() */
95 #ifndef NI_WITHSCOPEID
96 #define NI_WITHSCOPEID 0
97 #endif
98
99 struct ifreq ifr, ridreq;
100 struct ifaliasreq addreq;
101 #ifdef INET6
102 struct in6_ifreq in6_ridreq;
103 struct in6_aliasreq in6_addreq =
104 { { 0 },
105 { 0 },
106 { 0 },
107 { 0 },
108 0,
109 { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } };
110 #endif
111 struct sockaddr_in netmask;
112
113
114 char name[32];
115 int flags;
116 int metric;
117 int mtu;
118 int setaddr;
119 int setipdst;
120 int setmask;
121 int doalias;
122 int clearaddr;
123 int newaddr = 1;
124 #ifdef INET6
125 static int ip6lifetime;
126 #endif
127
128 struct afswtch;
129
130 int bond_details = 0;
131 int supmedia = 0;
132 int listcloners = 0;
133
134 #ifdef INET6
135 char addr_buf[MAXHOSTNAMELEN *2 + 1]; /*for getnameinfo()*/
136 #endif
137
138 void Perror __P((const char *cmd));
139
140 int ifconfig __P((int argc, char *const *argv, const struct afswtch *afp));
141 void notealias __P((const char *, int, int, const struct afswtch *afp));
142 void printb __P((const char *s, unsigned value, const char *bits));
143 void rt_xaddrs __P((caddr_t, caddr_t, struct rt_addrinfo *));
144 void status __P((const struct afswtch *afp, int addrcount,
145 struct sockaddr_dl *sdl, struct if_msghdr *ifm,
146 struct ifa_msghdr *ifam));
147 void tunnel_status __P((int s));
148 void usage __P((void));
149
150 #ifdef INET6
151 void in6_fillscopeid __P((struct sockaddr_in6 *sin6));
152 int prefix __P((void *, int));
153 static char *sec2str __P((time_t));
154 int explicit_prefix = 0;
155 #endif
156
157 typedef void c_func __P((const char *cmd, int arg, int s, const struct afswtch *afp));
158 typedef void c_func2 __P((const char *arg, const char *arg2, int s, const struct afswtch *afp));
159 c_func setifaddr, setifbroadaddr, setifdstaddr, setifnetmask;
160 c_func2 settunnel;
161 c_func deletetunnel;
162 #ifdef INET6
163 c_func setifprefixlen;
164 c_func setip6flags;
165 c_func setip6pltime;
166 c_func setip6vltime;
167 c_func2 setip6lifetime;
168 #endif
169 c_func setifipdst;
170 c_func setifflags, setifmetric, setifmtu, setiflladdr;
171 c_func clone_destroy;
172
173
174 void clone_create(void);
175 #define NEXTARG 0xffffff
176 #define NEXTARG2 0xfffffe
177
178 const
179 struct cmd {
180 const char *c_name;
181 int c_parameter; /* NEXTARG means next argv */
182 void (*c_func) __P((const char *, int, int, const struct afswtch *afp));
183 void (*c_func2) __P((const char *, const char *, int, const struct afswtch *afp));
184 } cmds[] = {
185 { "up", IFF_UP, setifflags } ,
186 { "down", -IFF_UP, setifflags },
187 { "arp", -IFF_NOARP, setifflags },
188 { "-arp", IFF_NOARP, setifflags },
189 { "debug", IFF_DEBUG, setifflags },
190 { "-debug", -IFF_DEBUG, setifflags },
191 { "add", IFF_UP, notealias },
192 { "alias", IFF_UP, notealias },
193 { "-alias", -IFF_UP, notealias },
194 { "delete", -IFF_UP, notealias },
195 { "remove", -IFF_UP, notealias },
196 #ifdef notdef
197 #define EN_SWABIPS 0x1000
198 { "swabips", EN_SWABIPS, setifflags },
199 { "-swabips", -EN_SWABIPS, setifflags },
200 #endif
201 { "netmask", NEXTARG, setifnetmask },
202 #ifdef INET6
203 { "prefixlen", NEXTARG, setifprefixlen },
204 { "anycast", IN6_IFF_ANYCAST, setip6flags },
205 { "tentative", IN6_IFF_TENTATIVE, setip6flags },
206 { "-tentative", -IN6_IFF_TENTATIVE, setip6flags },
207 { "deprecated", IN6_IFF_DEPRECATED, setip6flags },
208 { "-deprecated", -IN6_IFF_DEPRECATED, setip6flags },
209 { "autoconf", IN6_IFF_AUTOCONF, setip6flags },
210 { "-autoconf", -IN6_IFF_AUTOCONF, setip6flags },
211 { "pltime", NEXTARG, setip6pltime },
212 { "vltime", NEXTARG, setip6vltime },
213 #endif
214 { "metric", NEXTARG, setifmetric },
215 { "broadcast", NEXTARG, setifbroadaddr },
216 { "ipdst", NEXTARG, setifipdst },
217 { "tunnel", NEXTARG2, NULL, settunnel },
218 { "deletetunnel", 0, deletetunnel },
219 { "link0", IFF_LINK0, setifflags },
220 { "-link0", -IFF_LINK0, setifflags },
221 { "link1", IFF_LINK1, setifflags },
222 { "-link1", -IFF_LINK1, setifflags },
223 { "link2", IFF_LINK2, setifflags },
224 { "-link2", -IFF_LINK2, setifflags },
225 #if USE_IF_MEDIA
226 { "media", NEXTARG, setmedia },
227 { "mediaopt", NEXTARG, setmediaopt },
228 { "-mediaopt", NEXTARG, unsetmediaopt },
229 #endif
230 #ifdef USE_VLANS
231 { "vlan", NEXTARG, setvlantag },
232 { "vlandev", NEXTARG, setvlandev },
233 { "-vlandev", NEXTARG, unsetvlandev },
234 #endif
235 #ifdef USE_BONDS
236 { "bonddev", NEXTARG, setbonddev },
237 { "-bonddev", NEXTARG, unsetbonddev },
238 { "bondmode", NEXTARG, setbondmode },
239 #endif
240 #if 0
241 /* XXX `create' special-cased below */
242 {"create", 0, clone_create },
243 {"plumb", 0, clone_create },
244 #endif
245 {"destroy", 0, clone_destroy },
246 {"unplumb", 0, clone_destroy },
247 #ifdef USE_IEEE80211
248 { "ssid", NEXTARG, set80211ssid },
249 { "nwid", NEXTARG, set80211ssid },
250 { "stationname", NEXTARG, set80211stationname },
251 { "station", NEXTARG, set80211stationname }, /* BSD/OS */
252 { "channel", NEXTARG, set80211channel },
253 { "authmode", NEXTARG, set80211authmode },
254 { "powersavemode", NEXTARG, set80211powersavemode },
255 { "powersave", 1, set80211powersave },
256 { "-powersave", 0, set80211powersave },
257 { "powersavesleep", NEXTARG, set80211powersavesleep },
258 { "wepmode", NEXTARG, set80211wepmode },
259 { "wep", 1, set80211wep },
260 { "-wep", 0, set80211wep },
261 { "weptxkey", NEXTARG, set80211weptxkey },
262 { "wepkey", NEXTARG, set80211wepkey },
263 { "nwkey", NEXTARG, set80211nwkey }, /* NetBSD */
264 { "-nwkey", 0, set80211wep }, /* NetBSD */
265 #endif
266 { "normal", -IFF_LINK0, setifflags },
267 { "compress", IFF_LINK0, setifflags },
268 { "noicmp", IFF_LINK1, setifflags },
269 { "mtu", NEXTARG, setifmtu },
270 { "lladdr", NEXTARG, setiflladdr },
271 { 0, 0, setifaddr },
272 { 0, 0, setifdstaddr },
273 };
274
275 /*
276 * XNS support liberally adapted from code written at the University of
277 * Maryland principally by James O'Toole and Chris Torek.
278 */
279 typedef void af_status __P((int, struct rt_addrinfo *));
280 typedef void af_getaddr __P((const char *, int));
281 typedef void af_getprefix __P((const char *, int));
282
283 af_status in_status, at_status, ether_status;
284 af_getaddr in_getaddr, at_getaddr, ether_getaddr;
285
286
287 #ifdef INET6
288 af_status in6_status;
289 af_getaddr in6_getaddr;
290 af_getprefix in6_getprefix;
291 #endif /*INET6*/
292 #ifdef NS
293 af_status xns_status;
294 af_getaddr xns_getaddr;
295 #endif
296
297 /* Known address families */
298 const
299 struct afswtch {
300 const char *af_name;
301 short af_af;
302 af_status *af_status;
303 af_getaddr *af_getaddr;
304 af_getprefix *af_getprefix;
305 u_long af_difaddr;
306 u_long af_aifaddr;
307 caddr_t af_ridreq;
308 caddr_t af_addreq;
309 } afs[] = {
310 #define C(x) ((caddr_t) &x)
311 { "inet", AF_INET, in_status, in_getaddr, NULL,
312 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
313 #ifdef INET6
314 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix,
315 SIOCDIFADDR_IN6, SIOCAIFADDR_IN6,
316 C(in6_ridreq), C(in6_addreq) },
317 #endif /*INET6*/
318 #ifdef NS
319 { "ns", AF_NS, xns_status, xns_getaddr, NULL,
320 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) },
321 #endif
322 { "ether", AF_LINK, ether_status, ether_getaddr, NULL,
323 0, SIOCSIFLLADDR, NULL, C(ridreq) },
324 #if 0 /* XXX conflicts with the media command */
325 #ifdef USE_IF_MEDIA
326 { "media", AF_UNSPEC, media_status, NULL, NULL, }, /* XXX not real!! */
327 #endif
328 #ifdef USE_VLANS
329 { "vlan", AF_UNSPEC, vlan_status, NULL, NULL, }, /* XXX not real!! */
330 #endif
331 #ifdef USE_BONDS
332 { "bond", AF_UNSPEC, bond_status, NULL, NULL, }, /* XXX not real!! */
333 #endif
334 #ifdef USE_IEEE80211
335 { "ieee80211", AF_UNSPEC, ieee80211_status, NULL, NULL, }, /* XXX not real!! */
336 #endif
337 #endif
338 { 0, 0, 0, 0 }
339 };
340
341 /*
342 * Expand the compacted form of addresses as returned via the
343 * configuration read via sysctl().
344 */
345
346 #define ROUNDUP(a) \
347 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
348 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
349
350 void
351 rt_xaddrs(cp, cplim, rtinfo)
352 caddr_t cp, cplim;
353 struct rt_addrinfo *rtinfo;
354 {
355 struct sockaddr *sa;
356 int i;
357
358 memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info));
359 for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) {
360 if ((rtinfo->rti_addrs & (1 << i)) == 0)
361 continue;
362 rtinfo->rti_info[i] = sa = (struct sockaddr *)cp;
363 ADVANCE(cp, sa);
364 }
365 }
366
367
368 void
369 usage()
370 {
371 #ifndef INET6
372 fprintf(stderr, "%s",
373 "usage: ifconfig interface address_family [address [dest_address]]\n"
374 " [parameters]\n"
375 " ifconfig interface create\n"
376 " ifconfig -a [-d] [-m] [-u] [address_family]\n"
377 " ifconfig -l [-d] [-u] [address_family]\n"
378 " ifconfig [-d] [-m] [-u]\n");
379 #else
380 fprintf(stderr, "%s",
381 "usage: ifconfig [-L] interface address_family [address [dest_address]]\n"
382 " [parameters]\n"
383 " ifconfig interface create\n"
384 " ifconfig -a [-L] [-d] [-m] [-u] [address_family]\n"
385 " ifconfig -l [-d] [-u] [address_family]\n"
386 " ifconfig [-L] [-d] [-m] [-u]\n");
387 #endif
388 exit(1);
389 }
390
391 int
392 main(argc, argv)
393 int argc;
394 char *const *argv;
395 {
396 int c;
397 int all, namesonly, downonly, uponly;
398 int foundit = 0, need_nl = 0;
399 const struct afswtch *afp = 0;
400 int addrcount;
401 struct if_msghdr *ifm, *nextifm;
402 struct ifa_msghdr *ifam;
403 struct sockaddr_dl *sdl;
404 char *buf, *lim, *next;
405
406
407 size_t needed;
408 int mib[6];
409
410 /* Parse leading line options */
411 all = downonly = uponly = namesonly = 0;
412 while ((c = getopt(argc, argv, "abdlmu"
413 #ifdef INET6
414 "L"
415 #endif
416 )) != -1) {
417 switch (c) {
418 case 'a': /* scan all interfaces */
419 all++;
420 break;
421 case 'b': /* bond detailed output */
422 bond_details++;
423 break;
424 case 'd': /* restrict scan to "down" interfaces */
425 downonly++;
426 break;
427 case 'l': /* scan interface names only */
428 namesonly++;
429 break;
430 case 'm': /* show media choices in status */
431 supmedia = 1;
432 break;
433 case 'u': /* restrict scan to "up" interfaces */
434 uponly++;
435 break;
436 #ifdef INET6
437 case 'L':
438 ip6lifetime++; /* print IPv6 address lifetime */
439 break;
440 #endif
441 default:
442 usage();
443 break;
444 }
445 }
446 argc -= optind;
447 argv += optind;
448
449 /* -l cannot be used with -a or -m or -b */
450 if (namesonly && (all || supmedia || bond_details))
451 usage();
452
453 /* nonsense.. */
454 if (uponly && downonly)
455 usage();
456
457 /* no arguments is equivalent to '-a' */
458 if (!namesonly && argc < 1)
459 all = 1;
460
461 /* -a and -l allow an address family arg to limit the output */
462 if (all || namesonly) {
463 if (argc > 1)
464 usage();
465
466 if (argc == 1) {
467 for (afp = afs; afp->af_name; afp++)
468 if (strcmp(afp->af_name, *argv) == 0) {
469 argc--, argv++;
470 break;
471 }
472 if (afp->af_name == NULL)
473 usage();
474 /* leave with afp non-zero */
475 }
476 } else {
477 /* not listing, need an argument */
478 if (argc < 1)
479 usage();
480
481 strncpy(name, *argv, sizeof(name));
482 argc--, argv++;
483
484 /*
485 * NOTE: We must special-case the `create' command right
486 * here as we would otherwise fail when trying to find
487 * the interface.
488 */
489 if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
490 strcmp(argv[0], "plumb") == 0)) {
491 clone_create();
492 argc--, argv++;
493 if (argc == 0)
494 exit(0);
495 }
496 }
497
498 /* Check for address family */
499 if (argc > 0) {
500 for (afp = afs; afp->af_name; afp++)
501 if (strcmp(afp->af_name, *argv) == 0) {
502 argc--, argv++;
503 break;
504 }
505 if (afp->af_name == NULL)
506 afp = NULL; /* not a family, NULL */
507 }
508
509 mib[0] = CTL_NET;
510 mib[1] = PF_ROUTE;
511 mib[2] = 0;
512 mib[3] = 0; /* address family */
513 mib[4] = NET_RT_IFLIST;
514 mib[5] = 0;
515
516 /* if particular family specified, only ask about it */
517 if (afp)
518 mib[3] = afp->af_af;
519
520 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
521 errx(1, "iflist-sysctl-estimate");
522 if ((buf = malloc(needed)) == NULL)
523 errx(1, "malloc");
524 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
525 errx(1, "actual retrieval of interface table");
526 lim = buf + needed;
527
528 next = buf;
529 while (next < lim) {
530
531 ifm = (struct if_msghdr *)next;
532
533 if (ifm->ifm_type == RTM_IFINFO) {
534 sdl = (struct sockaddr_dl *)(ifm + 1);
535 flags = ifm->ifm_flags;
536 } else {
537 fprintf(stderr, "out of sync parsing NET_RT_IFLIST\n");
538 fprintf(stderr, "expected %d, got %d\n", RTM_IFINFO,
539 ifm->ifm_type);
540 fprintf(stderr, "msglen = %d\n", ifm->ifm_msglen);
541 fprintf(stderr, "buf:%p, next:%p, lim:%p\n", buf, next,
542 lim);
543 exit (1);
544 }
545
546 next += ifm->ifm_msglen;
547 ifam = NULL;
548 addrcount = 0;
549 while (next < lim) {
550
551 nextifm = (struct if_msghdr *)next;
552
553 if (nextifm->ifm_type != RTM_NEWADDR)
554 break;
555
556 if (ifam == NULL)
557 ifam = (struct ifa_msghdr *)nextifm;
558
559 addrcount++;
560 next += nextifm->ifm_msglen;
561 }
562
563 if (all || namesonly) {
564 if (uponly)
565 if ((flags & IFF_UP) == 0)
566 continue; /* not up */
567 if (downonly)
568 if (flags & IFF_UP)
569 continue; /* not down */
570 strncpy(name, sdl->sdl_data, sdl->sdl_nlen);
571 name[sdl->sdl_nlen] = '\0';
572 if (namesonly) {
573 if (afp == NULL ||
574 afp->af_status != ether_status ||
575 sdl->sdl_type == IFT_ETHER) {
576 if (need_nl)
577 putchar(' ');
578 fputs(name, stdout);
579 need_nl++;
580 }
581 continue;
582 }
583 } else {
584 if (strlen(name) != sdl->sdl_nlen)
585 continue; /* not same len */
586 if (strncmp(name, sdl->sdl_data, sdl->sdl_nlen) != 0)
587 continue; /* not same name */
588 }
589
590 if (argc > 0)
591 ifconfig(argc, argv, afp);
592 else
593 status(afp, addrcount, sdl, ifm, ifam);
594
595 if (all == 0 && namesonly == 0) {
596 foundit++; /* flag it as 'done' */
597 break;
598 }
599 }
600 free(buf);
601
602 if (namesonly && need_nl > 0)
603 putchar('\n');
604
605 if (all == 0 && namesonly == 0 && foundit == 0)
606 errx(1, "interface %s does not exist", name);
607
608
609 exit (0);
610 }
611
612
613 int
614 ifconfig(argc, argv, afp)
615 int argc;
616 char *const *argv;
617 const struct afswtch *afp;
618 {
619 int s;
620
621 if (afp == NULL)
622 afp = &afs[0];
623 ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af;
624 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
625
626 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0)
627 err(1, "socket");
628
629 while (argc > 0) {
630 register const struct cmd *p;
631
632 for (p = cmds; p->c_name; p++)
633 if (strcmp(*argv, p->c_name) == 0)
634 break;
635 if (p->c_name == 0 && setaddr)
636 p++; /* got src, do dst */
637 if (p->c_func || p->c_func2) {
638 if (p->c_parameter == NEXTARG) {
639 if (argv[1] == NULL)
640 errx(1, "'%s' requires argument",
641 p->c_name);
642 (*p->c_func)(argv[1], 0, s, afp);
643 argc--, argv++;
644 } else if (p->c_parameter == NEXTARG2) {
645 if (argc < 3)
646 errx(1, "'%s' requires 2 arguments",
647 p->c_name);
648 (*p->c_func2)(argv[1], argv[2], s, afp);
649 argc -= 2, argv += 2;
650 } else
651 (*p->c_func)(*argv, p->c_parameter, s, afp);
652 }
653 argc--, argv++;
654 }
655 #ifdef INET6
656 if (ifr.ifr_addr.sa_family == AF_INET6 && explicit_prefix == 0) {
657 /* Aggregatable address architecture defines all prefixes
658 are 64. So, it is convenient to set prefixlen to 64 if
659 it is not specified. */
660 setifprefixlen("64", 0, s, afp);
661 /* in6_getprefix("64", MASK) if MASK is available here... */
662 }
663 #endif
664 #ifdef NS
665 if (setipdst && ifr.ifr_addr.sa_family == AF_NS) {
666 struct nsip_req rq;
667 int size = sizeof(rq);
668
669 rq.rq_ns = addreq.ifra_addr;
670 rq.rq_ip = addreq.ifra_dstaddr;
671
672 if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0)
673 Perror("Encapsulation Routing");
674 }
675 #endif
676 if (clearaddr) {
677 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
678 warnx("interface %s cannot change %s addresses!",
679 name, afp->af_name);
680 clearaddr = 0;
681 }
682 }
683 if (clearaddr) {
684 int ret;
685 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
686 if ((ret = ioctl(s, afp->af_difaddr, afp->af_ridreq)) < 0) {
687 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
688 /* means no previous address for interface */
689 } else
690 Perror("ioctl (SIOCDIFADDR)");
691 }
692 }
693 if (newaddr) {
694 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
695 warnx("interface %s cannot change %s addresses!",
696 name, afp->af_name);
697 newaddr = 0;
698 }
699 }
700 if (newaddr && (setaddr || setmask)) {
701 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
702 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
703 Perror("ioctl (SIOCAIFADDR)");
704 }
705 close(s);
706 return(0);
707 }
708 #define RIDADDR 0
709 #define ADDR 1
710 #define NMASK 2
711 #define DSTADDR 3
712
713 /*ARGSUSED*/
714 void
715 setifaddr(addr, param, s, afp)
716 const char *addr;
717 int param;
718 int s;
719 const struct afswtch *afp;
720 {
721 if (*afp->af_getaddr == NULL)
722 return;
723 /*
724 * Delay the ioctl to set the interface addr until flags are all set.
725 * The address interpretation may depend on the flags,
726 * and the flags may change when the address is set.
727 */
728 setaddr++;
729 if (doalias == 0 && afp->af_af != AF_LINK)
730 clearaddr = 1;
731 (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR));
732 }
733
734 void
735 settunnel(src, dst, s, afp)
736 const char *src, *dst;
737 int s;
738 const struct afswtch *afp;
739 {
740 struct addrinfo hints, *srcres, *dstres;
741 struct ifaliasreq addreq;
742 int ecode;
743 #ifdef INET6
744 struct in6_aliasreq in6_addreq;
745 #endif
746
747 memset(&hints, 0, sizeof(hints));
748 hints.ai_family = afp->af_af;
749
750 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
751 errx(1, "error in parsing address string: %s",
752 gai_strerror(ecode));
753
754 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
755 errx(1, "error in parsing address string: %s",
756 gai_strerror(ecode));
757
758 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
759 errx(1,
760 "source and destination address families do not match");
761
762 switch (srcres->ai_addr->sa_family) {
763 case AF_INET:
764 memset(&addreq, 0, sizeof(addreq));
765 strncpy(addreq.ifra_name, name, IFNAMSIZ);
766 memcpy(&addreq.ifra_addr, srcres->ai_addr,
767 srcres->ai_addr->sa_len);
768 memcpy(&addreq.ifra_dstaddr, dstres->ai_addr,
769 dstres->ai_addr->sa_len);
770
771 if (ioctl(s, SIOCSIFPHYADDR, &addreq) < 0)
772 warn("SIOCSIFPHYADDR");
773 break;
774
775 #ifdef INET6
776 case AF_INET6:
777 memset(&in6_addreq, 0, sizeof(in6_addreq));
778 strncpy(in6_addreq.ifra_name, name, IFNAMSIZ);
779 memcpy(&in6_addreq.ifra_addr, srcres->ai_addr,
780 srcres->ai_addr->sa_len);
781 memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr,
782 dstres->ai_addr->sa_len);
783
784 if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0)
785 warn("SIOCSIFPHYADDR_IN6");
786 break;
787 #endif /* INET6 */
788
789 default:
790 warn("address family not supported");
791 }
792
793 freeaddrinfo(srcres);
794 freeaddrinfo(dstres);
795 }
796
797 /* ARGSUSED */
798 void
799 deletetunnel(vname, param, s, afp)
800 const char *vname;
801 int param;
802 int s;
803 const struct afswtch *afp;
804 {
805
806 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
807 err(1, "SIOCDIFPHYADDR");
808 }
809
810 void
811 setifnetmask(addr, dummy, s, afp)
812 const char *addr;
813 int dummy ;
814 int s;
815 const struct afswtch *afp;
816 {
817 if (*afp->af_getaddr == NULL)
818 return;
819 setmask++;
820 (*afp->af_getaddr)(addr, NMASK);
821 }
822
823 #ifdef INET6
824 void
825 setifprefixlen(addr, dummy, s, afp)
826 const char *addr;
827 int dummy ;
828 int s;
829 const struct afswtch *afp;
830 {
831 if (*afp->af_getprefix)
832 (*afp->af_getprefix)(addr, NMASK);
833 explicit_prefix = 1;
834 }
835
836 void
837 setip6flags(dummyaddr, flag, dummysoc, afp)
838 const char *dummyaddr ;
839 int flag;
840 int dummysoc ;
841 const struct afswtch *afp;
842 {
843 if (afp->af_af != AF_INET6)
844 err(1, "address flags can be set only for inet6 addresses");
845
846 if (flag < 0)
847 in6_addreq.ifra_flags &= ~(-flag);
848 else
849 in6_addreq.ifra_flags |= flag;
850 }
851
852 void
853 setip6pltime(seconds, dummy, s, afp)
854 const char *seconds;
855 int dummy ;
856 int s;
857 const struct afswtch *afp;
858 {
859 setip6lifetime("pltime", seconds, s, afp);
860 }
861
862 void
863 setip6vltime(seconds, dummy, s, afp)
864 const char *seconds;
865 int dummy ;
866 int s;
867 const struct afswtch *afp;
868 {
869 setip6lifetime("vltime", seconds, s, afp);
870 }
871
872 void
873 setip6lifetime(cmd, val, s, afp)
874 const char *cmd;
875 const char *val;
876 int s;
877 const struct afswtch *afp;
878 {
879 time_t newval, t;
880 char *ep;
881
882 t = time(NULL);
883 newval = (time_t)strtoul(val, &ep, 0);
884 if (val == ep)
885 errx(1, "invalid %s", cmd);
886 if (afp->af_af != AF_INET6)
887 errx(1, "%s not allowed for the AF", cmd);
888 if (strcmp(cmd, "vltime") == 0) {
889 in6_addreq.ifra_lifetime.ia6t_expire = t + newval;
890 in6_addreq.ifra_lifetime.ia6t_vltime = newval;
891 } else if (strcmp(cmd, "pltime") == 0) {
892 in6_addreq.ifra_lifetime.ia6t_preferred = t + newval;
893 in6_addreq.ifra_lifetime.ia6t_pltime = newval;
894 }
895 }
896 #endif
897
898 void
899 setifbroadaddr(addr, dummy, s, afp)
900 const char *addr;
901 int dummy ;
902 int s;
903 const struct afswtch *afp;
904 {
905 if (afp->af_getaddr)
906 (*afp->af_getaddr)(addr, DSTADDR);
907 }
908
909 void
910 setifipdst(addr, dummy, s, afp)
911 const char *addr;
912 int dummy ;
913 int s;
914 const struct afswtch *afp;
915 {
916 in_getaddr(addr, DSTADDR);
917 setipdst++;
918 clearaddr = 0;
919 newaddr = 0;
920 }
921 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
922
923 void
924 notealias(addr, param, s, afp)
925 const char *addr;
926 int param;
927 int s;
928 const struct afswtch *afp;
929 {
930 if (setaddr && doalias == 0 && param < 0)
931 bcopy((caddr_t)rqtosa(af_addreq),
932 (caddr_t)rqtosa(af_ridreq),
933 rqtosa(af_addreq)->sa_len);
934 doalias = param;
935 if (param < 0) {
936 clearaddr = 1;
937 newaddr = 0;
938 } else
939 clearaddr = 0;
940 }
941
942 /*ARGSUSED*/
943 void
944 setifdstaddr(addr, param, s, afp)
945 const char *addr;
946 int param ;
947 int s;
948 const struct afswtch *afp;
949 {
950 if (*afp->af_getaddr == NULL)
951 return;
952 (*afp->af_getaddr)(addr, DSTADDR);
953 }
954
955 /*
956 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
957 * of the ifreq structure, which may confuse other parts of ifconfig.
958 * Make a private copy so we can avoid that.
959 */
960 void
961 setifflags(vname, value, s, afp)
962 const char *vname;
963 int value;
964 int s;
965 const struct afswtch *afp;
966 {
967 struct ifreq my_ifr;
968
969 bcopy((char *)&ifr, (char *)&my_ifr, sizeof(struct ifreq));
970
971 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
972 Perror("ioctl (SIOCGIFFLAGS)");
973 exit(1);
974 }
975 strncpy(my_ifr.ifr_name, name, sizeof (my_ifr.ifr_name));
976 flags = my_ifr.ifr_flags;
977
978 if (value < 0) {
979 value = -value;
980 flags &= ~value;
981 } else
982 flags |= value;
983 my_ifr.ifr_flags = flags;
984 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
985 Perror(vname);
986 }
987
988 void
989 setifmetric(val, dummy, s, afp)
990 const char *val;
991 int dummy ;
992 int s;
993 const struct afswtch *afp;
994 {
995 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
996 ifr.ifr_metric = atoi(val);
997 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
998 warn("ioctl (set metric)");
999 }
1000
1001 void
1002 setifmtu(val, dummy, s, afp)
1003 const char *val;
1004 int dummy ;
1005 int s;
1006 const struct afswtch *afp;
1007 {
1008 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
1009 ifr.ifr_mtu = atoi(val);
1010 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
1011 warn("ioctl (set mtu)");
1012 }
1013
1014 void
1015 setiflladdr(val, dummy, s, afp)
1016 const char *val;
1017 int dummy;
1018 int s;
1019 const struct afswtch *afp;
1020 {
1021 struct ether_addr *ea;
1022
1023 ea = ether_aton(val);
1024 if (ea == NULL) {
1025 warn("malformed link-level address");
1026 return;
1027 }
1028 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
1029 ifr.ifr_addr.sa_len = ETHER_ADDR_LEN;
1030 ifr.ifr_addr.sa_family = AF_LINK;
1031 bcopy(ea, ifr.ifr_addr.sa_data, ETHER_ADDR_LEN);
1032 if (ioctl(s, SIOCSIFLLADDR, (caddr_t)&ifr) < 0)
1033 warn("ioctl (set lladdr)");
1034
1035 return;
1036 }
1037
1038 #define IFFBITS \
1039 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
1040 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
1041 "\20MULTICAST"
1042
1043 /*
1044 * Print the status of the interface. If an address family was
1045 * specified, show it and it only; otherwise, show them all.
1046 */
1047 void
1048 status(afp, addrcount, sdl, ifm, ifam)
1049 const struct afswtch *afp;
1050 int addrcount;
1051 struct sockaddr_dl *sdl;
1052 struct if_msghdr *ifm;
1053 struct ifa_msghdr *ifam;
1054 {
1055 const struct afswtch *p = NULL;
1056 struct rt_addrinfo info;
1057 int allfamilies, s;
1058 struct ifstat ifs;
1059
1060 if (afp == NULL) {
1061 allfamilies = 1;
1062 afp = &afs[0];
1063 } else
1064 allfamilies = 0;
1065
1066 ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af;
1067 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
1068
1069 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0)
1070 err(1, "socket");
1071
1072 /*
1073 * XXX is it we are doing a SIOCGIFMETRIC etc for one family.
1074 * is it possible that the metric and mtu can be different for
1075 * each family? If so, we have a format problem, because the
1076 * metric and mtu is printed on the global the flags line.
1077 */
1078 if (ioctl(s, SIOCGIFMETRIC, (caddr_t)&ifr) < 0)
1079 warn("ioctl (SIOCGIFMETRIC)");
1080 else
1081 metric = ifr.ifr_metric;
1082
1083 if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) < 0)
1084 warn("ioctl (SIOCGIFMTU)");
1085 else
1086 mtu = ifr.ifr_mtu;
1087
1088 printf("%s: ", name);
1089 printb("flags", flags, IFFBITS);
1090 if (metric)
1091 printf(" metric %d", metric);
1092 if (mtu)
1093 printf(" mtu %d", mtu);
1094 putchar('\n');
1095
1096 tunnel_status(s);
1097
1098 while (addrcount > 0) {
1099
1100 info.rti_addrs = ifam->ifam_addrs;
1101
1102 /* Expand the compacted addresses */
1103 rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam,
1104 &info);
1105
1106 if (!allfamilies) {
1107 if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family) {
1108 p = afp;
1109 (*p->af_status)(s, &info);
1110 }
1111 } else for (p = afs; p->af_name; p++) {
1112 if (p->af_af == info.rti_info[RTAX_IFA]->sa_family)
1113 (*p->af_status)(s, &info);
1114 }
1115 addrcount--;
1116 ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen);
1117 }
1118 if (allfamilies || afp->af_status == ether_status)
1119 ether_status(s, (struct rt_addrinfo *)sdl);
1120 #if USE_IF_MEDIA
1121 if (allfamilies || afp->af_status == media_status)
1122 media_status(s, NULL);
1123 #endif
1124 #ifdef USE_VLANS
1125 if (allfamilies || afp->af_status == vlan_status)
1126 vlan_status(s, NULL);
1127 #endif
1128 #ifdef USE_BONDS
1129 if (allfamilies || afp->af_status == bond_status)
1130 bond_status(s, NULL);
1131 #endif
1132 #ifdef USE_IEEE80211
1133 if (allfamilies || afp->af_status == ieee80211_status)
1134 ieee80211_status(s, NULL);
1135 #endif
1136 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
1137 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
1138 printf("%s", ifs.ascii);
1139
1140 if (!allfamilies && !p && afp->af_status != media_status &&
1141 afp->af_status != ether_status
1142 #ifdef USE_VLANS
1143 && afp->af_status != vlan_status
1144 #endif
1145 )
1146 warnx("%s has no %s interface address!", name, afp->af_name);
1147
1148 close(s);
1149 return;
1150 }
1151
1152 void
1153 tunnel_status(s)
1154 int s;
1155 {
1156 char psrcaddr[NI_MAXHOST];
1157 char pdstaddr[NI_MAXHOST];
1158 u_long srccmd, dstcmd;
1159 struct ifreq *ifrp;
1160 const char *ver = "";
1161 #ifdef NI_WITHSCOPEID
1162 const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID;
1163 #else
1164 const int niflag = NI_NUMERICHOST;
1165 #endif
1166 #ifdef INET6
1167 struct in6_ifreq in6_ifr;
1168 int s6;
1169 #endif /* INET6 */
1170
1171 psrcaddr[0] = pdstaddr[0] = '\0';
1172
1173 #ifdef INET6
1174 memset(&in6_ifr, 0, sizeof(in6_ifr));
1175 strncpy(in6_ifr.ifr_name, name, IFNAMSIZ);
1176 s6 = socket(AF_INET6, SOCK_DGRAM, 0);
1177 if (s6 < 0) {
1178 srccmd = SIOCGIFPSRCADDR;
1179 dstcmd = SIOCGIFPDSTADDR;
1180 ifrp = &ifr;
1181 } else {
1182 close(s6);
1183 srccmd = SIOCGIFPSRCADDR_IN6;
1184 dstcmd = SIOCGIFPDSTADDR_IN6;
1185 ifrp = (struct ifreq *)&in6_ifr;
1186 }
1187 #else /* INET6 */
1188 srccmd = SIOCGIFPSRCADDR;
1189 dstcmd = SIOCGIFPDSTADDR;
1190 ifrp = &ifr;
1191 #endif /* INET6 */
1192
1193 if (ioctl(s, srccmd, (caddr_t)ifrp) < 0)
1194 return;
1195 #ifdef INET6
1196 if (ifrp->ifr_addr.sa_family == AF_INET6)
1197 in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr);
1198 #endif
1199 getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
1200 psrcaddr, sizeof(psrcaddr), 0, 0, niflag);
1201 #ifdef INET6
1202 if (ifrp->ifr_addr.sa_family == AF_INET6)
1203 ver = "6";
1204 #endif
1205
1206 if (ioctl(s, dstcmd, (caddr_t)ifrp) < 0)
1207 return;
1208 #ifdef INET6
1209 if (ifrp->ifr_addr.sa_family == AF_INET6)
1210 in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr);
1211 #endif
1212 getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len,
1213 pdstaddr, sizeof(pdstaddr), 0, 0, niflag);
1214
1215 printf("\ttunnel inet%s %s --> %s\n", ver,
1216 psrcaddr, pdstaddr);
1217 }
1218
1219 void
1220 in_status(s, info)
1221 int s ;
1222 struct rt_addrinfo * info;
1223 {
1224 struct sockaddr_in *sin, null_sin;
1225
1226 memset(&null_sin, 0, sizeof(null_sin));
1227
1228 sin = (struct sockaddr_in *)info->rti_info[RTAX_IFA];
1229 printf("\tinet %s ", inet_ntoa(sin->sin_addr));
1230
1231 if (flags & IFF_POINTOPOINT) {
1232 /* note RTAX_BRD overlap with IFF_BROADCAST */
1233 sin = (struct sockaddr_in *)info->rti_info[RTAX_BRD];
1234 if (!sin)
1235 sin = &null_sin;
1236 printf("--> %s ", inet_ntoa(sin->sin_addr));
1237 }
1238
1239 sin = (struct sockaddr_in *)info->rti_info[RTAX_NETMASK];
1240 if (!sin)
1241 sin = &null_sin;
1242 printf("netmask 0x%lx ", (unsigned long)ntohl(sin->sin_addr.s_addr));
1243
1244 if (flags & IFF_BROADCAST) {
1245 /* note RTAX_BRD overlap with IFF_POINTOPOINT */
1246 sin = (struct sockaddr_in *)info->rti_info[RTAX_BRD];
1247 if (sin && sin->sin_addr.s_addr != 0)
1248 printf("broadcast %s", inet_ntoa(sin->sin_addr));
1249 }
1250 putchar('\n');
1251 }
1252
1253 #ifdef INET6
1254 void
1255 in6_fillscopeid(sin6)
1256 struct sockaddr_in6 *sin6;
1257 {
1258 #if defined(__KAME__) && defined(KAME_SCOPEID)
1259 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1260 sin6->sin6_scope_id =
1261 ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]);
1262 sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
1263 }
1264 #endif
1265 }
1266
1267 void
1268 in6_status(s, info)
1269 int s ;
1270 struct rt_addrinfo * info;
1271 {
1272 struct sockaddr_in6 *sin, null_sin;
1273 struct in6_ifreq ifr6;
1274 int s6;
1275 u_int32_t flags6;
1276 struct in6_addrlifetime lifetime;
1277 time_t t = time(NULL);
1278 int error;
1279 u_int32_t scopeid;
1280
1281 memset(&null_sin, 0, sizeof(null_sin));
1282
1283 sin = (struct sockaddr_in6 *)info->rti_info[RTAX_IFA];
1284 strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name));
1285 if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
1286 perror("ifconfig: socket");
1287 return;
1288 }
1289 ifr6.ifr_addr = *sin;
1290 if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
1291 perror("ifconfig: ioctl(SIOCGIFAFLAG_IN6)");
1292 close(s6);
1293 return;
1294 }
1295 flags6 = ifr6.ifr_ifru.ifru_flags6;
1296 memset(&lifetime, 0, sizeof(lifetime));
1297 ifr6.ifr_addr = *sin;
1298 if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
1299 perror("ifconfig: ioctl(SIOCGIFALIFETIME_IN6)");
1300 close(s6);
1301 return;
1302 }
1303 lifetime = ifr6.ifr_ifru.ifru_lifetime;
1304 close(s6);
1305
1306 /* XXX: embedded link local addr check */
1307 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
1308 *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
1309 u_short index;
1310
1311 index = *(u_short *)&sin->sin6_addr.s6_addr[2];
1312 *(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
1313 if (sin->sin6_scope_id == 0)
1314 sin->sin6_scope_id = ntohs(index);
1315 }
1316 scopeid = sin->sin6_scope_id;
1317
1318 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf,
1319 sizeof(addr_buf), NULL, 0,
1320 NI_NUMERICHOST|NI_WITHSCOPEID);
1321 if (error != 0)
1322 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
1323 sizeof(addr_buf));
1324 printf("\tinet6 %s ", addr_buf);
1325
1326 if (flags & IFF_POINTOPOINT) {
1327 /* note RTAX_BRD overlap with IFF_BROADCAST */
1328 sin = (struct sockaddr_in6 *)info->rti_info[RTAX_BRD];
1329 /*
1330 * some of the interfaces do not have valid destination
1331 * address.
1332 */
1333 if (sin && sin->sin6_family == AF_INET6) {
1334 int error;
1335
1336 /* XXX: embedded link local addr check */
1337 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
1338 *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
1339 u_short index;
1340
1341 index = *(u_short *)&sin->sin6_addr.s6_addr[2];
1342 *(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
1343 if (sin->sin6_scope_id == 0)
1344 sin->sin6_scope_id = ntohs(index);
1345 }
1346
1347 error = getnameinfo((struct sockaddr *)sin,
1348 sin->sin6_len, addr_buf,
1349 sizeof(addr_buf), NULL, 0,
1350 NI_NUMERICHOST|NI_WITHSCOPEID);
1351 if (error != 0)
1352 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
1353 sizeof(addr_buf));
1354 printf("--> %s ", addr_buf);
1355 }
1356 }
1357
1358 sin = (struct sockaddr_in6 *)info->rti_info[RTAX_NETMASK];
1359 if (!sin)
1360 sin = &null_sin;
1361 printf("prefixlen %d ", prefix(&sin->sin6_addr,
1362 sizeof(struct in6_addr)));
1363
1364 if ((flags6 & IN6_IFF_ANYCAST) != 0)
1365 printf("anycast ");
1366 if ((flags6 & IN6_IFF_TENTATIVE) != 0)
1367 printf("tentative ");
1368 if ((flags6 & IN6_IFF_DUPLICATED) != 0)
1369 printf("duplicated ");
1370 if ((flags6 & IN6_IFF_DETACHED) != 0)
1371 printf("detached ");
1372 if ((flags6 & IN6_IFF_DEPRECATED) != 0)
1373 printf("deprecated ");
1374 if ((flags6 & IN6_IFF_AUTOCONF) != 0)
1375 printf("autoconf ");
1376 if ((flags6 & IN6_IFF_TEMPORARY) != 0)
1377 printf("temporary ");
1378
1379 if (scopeid)
1380 printf("scopeid 0x%x ", scopeid);
1381
1382 if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) {
1383 printf("pltime ");
1384 if (lifetime.ia6t_preferred) {
1385 printf("%s ", lifetime.ia6t_preferred < t
1386 ? "0" : sec2str(lifetime.ia6t_preferred - t));
1387 } else
1388 printf("infty ");
1389
1390 printf("vltime ");
1391 if (lifetime.ia6t_expire) {
1392 printf("%s ", lifetime.ia6t_expire < t
1393 ? "0" : sec2str(lifetime.ia6t_expire - t));
1394 } else
1395 printf("infty ");
1396 }
1397
1398 putchar('\n');
1399 }
1400 #endif /*INET6*/
1401
1402 #ifdef NS
1403 void
1404 xns_status(s, info)
1405 int s ;
1406 struct rt_addrinfo * info;
1407 {
1408 struct sockaddr_ns *sns, null_sns;
1409
1410 memset(&null_sns, 0, sizeof(null_sns));
1411
1412 sns = (struct sockaddr_ns *)info->rti_info[RTAX_IFA];
1413 printf("\tns %s ", ns_ntoa(sns->sns_addr));
1414
1415 if (flags & IFF_POINTOPOINT) {
1416 sns = (struct sockaddr_ns *)info->rti_info[RTAX_BRD];
1417 if (!sns)
1418 sns = &null_sns;
1419 printf("--> %s ", ns_ntoa(sns->sns_addr));
1420 }
1421
1422 putchar('\n');
1423 close(s);
1424 }
1425 #endif
1426
1427
1428 void
1429 ether_status(s, info)
1430 int s ;
1431 struct rt_addrinfo *info;
1432 {
1433 char *cp;
1434 int n;
1435 struct sockaddr_dl *sdl = (struct sockaddr_dl *)info;
1436
1437 cp = (char *)LLADDR(sdl);
1438 if ((n = sdl->sdl_alen) > 0) {
1439 if (sdl->sdl_type == IFT_ETHER)
1440 printf ("\tether ");
1441 else
1442 printf ("\tlladdr ");
1443 while (--n >= 0)
1444 printf("%02x%c",*cp++ & 0xff, n>0? ':' : ' ');
1445 putchar('\n');
1446 }
1447 }
1448
1449 void
1450 Perror(cmd)
1451 const char *cmd;
1452 {
1453 switch (errno) {
1454
1455 case ENXIO:
1456 errx(1, "%s: no such interface", cmd);
1457 break;
1458
1459 case EPERM:
1460 errx(1, "%s: permission denied", cmd);
1461 break;
1462
1463 default:
1464 err(1, "%s", cmd);
1465 }
1466 }
1467
1468 #define SIN(x) ((struct sockaddr_in *) &(x))
1469 struct sockaddr_in *sintab[] = {
1470 SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr),
1471 SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)};
1472
1473 void
1474 in_getaddr(s, which)
1475 const char *s;
1476 int which;
1477 {
1478 register struct sockaddr_in *sin = sintab[which];
1479 struct hostent *hp;
1480 struct netent *np;
1481
1482 sin->sin_len = sizeof(*sin);
1483 if (which != NMASK)
1484 sin->sin_family = AF_INET;
1485
1486 if (which == ADDR) {
1487 char *p = NULL;
1488
1489 if((p = strrchr(s, '/')) != NULL) {
1490 /* address is `name/masklen' */
1491 int masklen;
1492 int ret;
1493 struct sockaddr_in *min = sintab[NMASK];
1494 *p = '\0';
1495 ret = sscanf(p+1, "%u", &masklen);
1496 if(ret != 1 || (masklen < 0 || masklen > 32)) {
1497 *p = '/';
1498 errx(1, "%s: bad value", s);
1499 }
1500 min->sin_len = sizeof(*min);
1501 min->sin_addr.s_addr = htonl(~((1LL << (32 - masklen)) - 1) &
1502 0xffffffff);
1503 }
1504 }
1505
1506 if (inet_aton(s, &sin->sin_addr))
1507 return;
1508 if ((hp = gethostbyname(s)) != 0)
1509 bcopy(hp->h_addr, (char *)&sin->sin_addr,
1510 MIN(hp->h_length, sizeof(sin->sin_addr)));
1511 else if ((np = getnetbyname(s)) != 0)
1512 sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
1513 else
1514 errx(1, "%s: bad value", s);
1515 }
1516
1517 #ifdef INET6
1518 #define SIN6(x) ((struct sockaddr_in6 *) &(x))
1519 struct sockaddr_in6 *sin6tab[] = {
1520 SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr),
1521 SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)};
1522
1523 void
1524 in6_getaddr(s, which)
1525 const char *s;
1526 int which;
1527 {
1528 register struct sockaddr_in6 *sin = sin6tab[which];
1529 struct addrinfo hints, *res;
1530 int error = -1;
1531
1532 newaddr &= 1;
1533
1534 sin->sin6_len = sizeof(*sin);
1535 if (which != NMASK)
1536 sin->sin6_family = AF_INET6;
1537
1538 if (which == ADDR) {
1539 char *p = NULL;
1540 if((p = strrchr(s, '/')) != NULL) {
1541 *p = '\0';
1542 in6_getprefix(p + 1, NMASK);
1543 explicit_prefix = 1;
1544 }
1545 }
1546
1547 if (sin->sin6_family == AF_INET6) {
1548 bzero(&hints, sizeof(struct addrinfo));
1549 hints.ai_family = AF_INET6;
1550 error = getaddrinfo(s, NULL, &hints, &res);
1551 }
1552 if (error != 0) {
1553 if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
1554 errx(1, "%s: bad value", s);
1555 } else
1556 bcopy(res->ai_addr, sin, res->ai_addrlen);
1557 }
1558
1559 void
1560 in6_getprefix(plen, which)
1561 const char *plen;
1562 int which;
1563 {
1564 register struct sockaddr_in6 *sin = sin6tab[which];
1565 register u_char *cp;
1566 int len = atoi(plen);
1567
1568 if ((len < 0) || (len > 128))
1569 errx(1, "%s: bad value", plen);
1570 sin->sin6_len = sizeof(*sin);
1571 if (which != NMASK)
1572 sin->sin6_family = AF_INET6;
1573 if ((len == 0) || (len == 128)) {
1574 memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr));
1575 return;
1576 }
1577 memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr));
1578 for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8)
1579 *cp++ = 0xff;
1580 *cp = 0xff << (8 - len);
1581 }
1582 #endif
1583
1584 /*
1585 * Print a value a la the %b format of the kernel's printf
1586 */
1587 void
1588 printb(s, v, bits)
1589 const char *s;
1590 register unsigned v;
1591 register const char *bits;
1592 {
1593 register int i, any = 0;
1594 register char c;
1595
1596 if (bits && *bits == 8)
1597 printf("%s=%o", s, v);
1598 else
1599 printf("%s=%x", s, v);
1600 bits++;
1601 if (bits) {
1602 putchar('<');
1603 while ((i = *bits++) != '\0') {
1604 if (v & (1 << (i-1))) {
1605 if (any)
1606 putchar(',');
1607 any = 1;
1608 for (; (c = *bits) > 32; bits++)
1609 putchar(c);
1610 } else
1611 for (; *bits > 32; bits++)
1612 ;
1613 }
1614 putchar('>');
1615 }
1616 }
1617
1618 void
1619 ether_getaddr(addr, which)
1620 const char *addr;
1621 int which;
1622 {
1623 struct ether_addr *ea;
1624 struct sockaddr *sea = &ridreq.ifr_addr;
1625
1626 ea = ether_aton(addr);
1627 if (ea == NULL)
1628 errx(1, "malformed ether address");
1629 if (which == NMASK)
1630 errx(1, "Ethernet does not use netmasks");
1631 sea->sa_family = AF_LINK;
1632 sea->sa_len = ETHER_ADDR_LEN;
1633 bcopy(ea, sea->sa_data, ETHER_ADDR_LEN);
1634 }
1635
1636 #ifdef INET6
1637 int
1638 prefix(val, size)
1639 void *val;
1640 int size;
1641 {
1642 register u_char *name = (u_char *)val;
1643 register int byte, bit, plen = 0;
1644
1645 for (byte = 0; byte < size; byte++, plen += 8)
1646 if (name[byte] != 0xff)
1647 break;
1648 if (byte == size)
1649 return (plen);
1650 for (bit = 7; bit != 0; bit--, plen++)
1651 if (!(name[byte] & (1 << bit)))
1652 break;
1653 for (; bit != 0; bit--)
1654 if (name[byte] & (1 << bit))
1655 return(0);
1656 byte++;
1657 for (; byte < size; byte++)
1658 if (name[byte])
1659 return(0);
1660 return (plen);
1661 }
1662
1663 static char *
1664 sec2str(total)
1665 time_t total;
1666 {
1667 static char result[256];
1668 int days, hours, mins, secs;
1669 int first = 1;
1670 char *p = result;
1671
1672 if (0) {
1673 days = total / 3600 / 24;
1674 hours = (total / 3600) % 24;
1675 mins = (total / 60) % 60;
1676 secs = total % 60;
1677
1678 if (days) {
1679 first = 0;
1680 p += sprintf(p, "%dd", days);
1681 }
1682 if (!first || hours) {
1683 first = 0;
1684 p += sprintf(p, "%dh", hours);
1685 }
1686 if (!first || mins) {
1687 first = 0;
1688 p += sprintf(p, "%dm", mins);
1689 }
1690 sprintf(p, "%ds", secs);
1691 } else
1692 sprintf(result, "%lu", (unsigned long)total);
1693
1694 return(result);
1695 }
1696 #endif /*INET6*/
1697
1698 void
1699 clone_create(void)
1700 {
1701 int s;
1702
1703 s = socket(AF_INET, SOCK_DGRAM, 0);
1704 if (s == -1)
1705 err(1, "socket");
1706
1707 memset(&ifr, 0, sizeof(ifr));
1708 (void) strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
1709 if (ioctl(s, SIOCIFCREATE, &ifr) < 0)
1710 err(1, "SIOCIFCREATE");
1711
1712 if (strcmp(name, ifr.ifr_name) != 0) {
1713 printf("%s\n", ifr.ifr_name);
1714 strlcpy(name, ifr.ifr_name, sizeof(name));
1715 }
1716
1717 close(s);
1718 }
1719
1720 void
1721 clone_destroy(const char *val, int d, int s, const struct afswtch *rafp)
1722 {
1723
1724 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
1725 if (ioctl(s, SIOCIFDESTROY, &ifr) < 0)
1726 err(1, "SIOCIFDESTROY");
1727 }
mirror of network_cmds