1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/param.h>
33 #include <sys/ioctl.h>
34 #ifdef JAIL
35 #include <sys/jail.h>
36 #endif
37 #include <sys/module.h>
38 #include <sys/linker.h>
39 #include <sys/nv.h>
40 #include <sys/queue.h>
41 #include <sys/socket.h>
42 #include <sys/time.h>
43
44 #include <net/ethernet.h>
45 #include <net/if.h>
46 #include <net/if_dl.h>
47 #include <net/if_strings.h>
48 #include <net/if_types.h>
49 #include <net/route.h>
50
51 /* IP */
52 #include <netinet/in.h>
53 #include <netinet/in_var.h>
54 #include <arpa/inet.h>
55 #include <netdb.h>
56
57 #include <fnmatch.h>
58 #include <ifaddrs.h>
59 #include <ctype.h>
60 #include <err.h>
61 #include <errno.h>
62 #include <fcntl.h>
63 #ifdef JAIL
64 #include <jail.h>
65 #endif
66 #include <stdbool.h>
67 #include <stdio.h>
68 #include <stdlib.h>
69 #include <string.h>
70 #include <unistd.h>
71
72 #include <libifconfig.h>
73
74 #include "ifconfig.h"
75
76 ifconfig_handle_t *lifh;
77
78 #ifdef WITHOUT_NETLINK
79 static char *descr = NULL;
80 static size_t descrlen = 64;
81 #endif
82 static int setaddr;
83 static int setmask;
84 static int doalias;
85 static int clearaddr;
86 static int newaddr = 1;
87
88 int exit_code = 0;
89
90 static char ifname_to_print[IFNAMSIZ]; /* Helper for printifnamemaybe() */
91
92 /* Formatter Strings */
93 char *f_inet, *f_inet6, *f_ether, *f_addr;
94
95 #ifdef WITHOUT_NETLINK
96 static void list_interfaces_ioctl(if_ctx *ctx);
97 static void status(if_ctx *ctx, const struct sockaddr_dl *sdl,
98 struct ifaddrs *ifa);
99 #endif
100 static _Noreturn void usage(void);
101 static void Perrorc(const char *cmd, int error);
102
103 static int getifflags(const char *ifname, int us, bool err_ok);
104
105 static struct afswtch *af_getbyname(const char *name);
106
107 static struct option *opts = NULL;
108
109 struct ifa_order_elt {
110 int if_order;
111 int af_orders[255];
112 struct ifaddrs *ifa;
113 TAILQ_ENTRY(ifa_order_elt) link;
114 };
115
116 TAILQ_HEAD(ifa_queue, ifa_order_elt);
117
118 static struct module_map_entry {
119 const char *ifname;
120 const char *kldname;
121 } module_map[] = {
122 {
123 .ifname = "tun",
124 .kldname = "if_tuntap",
125 },
126 {
127 .ifname = "tap",
128 .kldname = "if_tuntap",
129 },
130 {
131 .ifname = "vmnet",
132 .kldname = "if_tuntap",
133 },
134 {
135 .ifname = "ipsec",
136 .kldname = "ipsec",
137 },
138 {
139 /*
140 * This mapping exists because there is a conflicting enc module
141 * in CAM. ifconfig's guessing behavior will attempt to match
142 * the ifname to a module as well as if_${ifname} and clash with
143 * CAM enc. This is an assertion of the correct module to load.
144 */
145 .ifname = "enc",
146 .kldname = "if_enc",
147 },
148 };
149
150
151 void
opt_register(struct option * p)152 opt_register(struct option *p)
153 {
154 p->next = opts;
155 opts = p;
156 }
157
158 static void
usage(void)159 usage(void)
160 {
161 char options[1024];
162 struct option *p;
163
164 /* XXX not right but close enough for now */
165 options[0] = '\0';
166 for (p = opts; p != NULL; p = p->next) {
167 strlcat(options, p->opt_usage, sizeof(options));
168 strlcat(options, " ", sizeof(options));
169 }
170
171 fprintf(stderr,
172 "usage: ifconfig [-j jail] [-f type:format] %sinterface address_family\n"
173 " [address [dest_address]] [parameters]\n"
174 " ifconfig [-j jail] interface create\n"
175 " ifconfig [-j jail] -a %s[-d] [-m] [-u] [-v] [address_family]\n"
176 " ifconfig [-j jail] -l [-d] [-u] [address_family]\n"
177 " ifconfig [-j jail] %s[-d] [-m] [-u] [-v]\n",
178 options, options, options);
179 exit(1);
180 }
181
182 static void
ifname_update(if_ctx * ctx,const char * name)183 ifname_update(if_ctx *ctx, const char *name)
184 {
185 strlcpy(ctx->_ifname_storage_ioctl, name, sizeof(ctx->_ifname_storage_ioctl));
186 ctx->ifname = ctx->_ifname_storage_ioctl;
187
188 strlcpy(ifname_to_print, name, sizeof(ifname_to_print));
189 }
190
191 static void
ifr_set_name(struct ifreq * ifr,const char * name)192 ifr_set_name(struct ifreq *ifr, const char *name)
193 {
194 strlcpy(ifr->ifr_name, name, sizeof(ifr->ifr_name));
195 }
196
197 int
ioctl_ctx_ifr(if_ctx * ctx,unsigned long cmd,struct ifreq * ifr)198 ioctl_ctx_ifr(if_ctx *ctx, unsigned long cmd, struct ifreq *ifr)
199 {
200 ifr_set_name(ifr, ctx->ifname);
201 return (ioctl_ctx(ctx, cmd, ifr));
202 }
203
204 void
ifcreate_ioctl(if_ctx * ctx,struct ifreq * ifr)205 ifcreate_ioctl(if_ctx *ctx, struct ifreq *ifr)
206 {
207 char ifname_orig[IFNAMSIZ];
208
209 strlcpy(ifname_orig, ifr->ifr_name, sizeof(ifname_orig));
210
211 if (ioctl(ctx->io_s, SIOCIFCREATE2, ifr) < 0) {
212 switch (errno) {
213 case EEXIST:
214 errx(1, "interface %s already exists", ifr->ifr_name);
215 default:
216 err(1, "SIOCIFCREATE2 (%s)", ifr->ifr_name);
217 }
218 }
219
220 if (strncmp(ifname_orig, ifr->ifr_name, sizeof(ifname_orig)) != 0)
221 ifname_update(ctx, ifr->ifr_name);
222 }
223
224 #ifdef WITHOUT_NETLINK
225 static int
calcorders(struct ifaddrs * ifa,struct ifa_queue * q)226 calcorders(struct ifaddrs *ifa, struct ifa_queue *q)
227 {
228 struct ifaddrs *prev;
229 struct ifa_order_elt *cur;
230 unsigned int ord, af, ifa_ord;
231
232 prev = NULL;
233 cur = NULL;
234 ord = 0;
235 ifa_ord = 0;
236
237 while (ifa != NULL) {
238 if (prev == NULL ||
239 strcmp(ifa->ifa_name, prev->ifa_name) != 0) {
240 cur = calloc(1, sizeof(*cur));
241
242 if (cur == NULL)
243 return (-1);
244
245 TAILQ_INSERT_TAIL(q, cur, link);
246 cur->if_order = ifa_ord ++;
247 cur->ifa = ifa;
248 ord = 0;
249 }
250
251 if (ifa->ifa_addr) {
252 af = ifa->ifa_addr->sa_family;
253
254 if (af < nitems(cur->af_orders) &&
255 cur->af_orders[af] == 0)
256 cur->af_orders[af] = ++ord;
257 }
258 prev = ifa;
259 ifa = ifa->ifa_next;
260 }
261
262 return (0);
263 }
264
265 static int
cmpifaddrs(struct ifaddrs * a,struct ifaddrs * b,struct ifa_queue * q)266 cmpifaddrs(struct ifaddrs *a, struct ifaddrs *b, struct ifa_queue *q)
267 {
268 struct ifa_order_elt *cur, *e1, *e2;
269 unsigned int af1, af2;
270 int ret;
271
272 e1 = e2 = NULL;
273
274 ret = strcmp(a->ifa_name, b->ifa_name);
275 if (ret != 0) {
276 TAILQ_FOREACH(cur, q, link) {
277 if (e1 && e2)
278 break;
279
280 if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0)
281 e1 = cur;
282 else if (strcmp(cur->ifa->ifa_name, b->ifa_name) == 0)
283 e2 = cur;
284 }
285
286 if (!e1 || !e2)
287 return (0);
288 else
289 return (e1->if_order - e2->if_order);
290
291 } else if (a->ifa_addr != NULL && b->ifa_addr != NULL) {
292 TAILQ_FOREACH(cur, q, link) {
293 if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) {
294 e1 = cur;
295 break;
296 }
297 }
298
299 if (!e1)
300 return (0);
301
302 af1 = a->ifa_addr->sa_family;
303 af2 = b->ifa_addr->sa_family;
304
305 if (af1 < nitems(e1->af_orders) && af2 < nitems(e1->af_orders))
306 return (e1->af_orders[af1] - e1->af_orders[af2]);
307 }
308
309 return (0);
310 }
311 #endif
312
freeformat(void)313 static void freeformat(void)
314 {
315
316 free(f_inet);
317 free(f_inet6);
318 free(f_ether);
319 free(f_addr);
320 }
321
setformat(char * input)322 static void setformat(char *input)
323 {
324 char *formatstr, *category, *modifier;
325
326 formatstr = strdup(input);
327 while ((category = strsep(&formatstr, ",")) != NULL) {
328 modifier = strchr(category, ':');
329 if (modifier == NULL) {
330 if (strcmp(category, "default") == 0) {
331 freeformat();
332 } else if (strcmp(category, "cidr") == 0) {
333 free(f_inet);
334 f_inet = strdup(category);
335 free(f_inet6);
336 f_inet6 = strdup(category);
337 } else {
338 warnx("Skipping invalid format: %s\n",
339 category);
340 }
341 continue;
342 }
343
344 /* Split the string on the separator, then seek past it */
345 modifier[0] = '\0';
346 modifier++;
347
348 if (strcmp(category, "addr") == 0) {
349 free(f_addr);
350 f_addr = strdup(modifier);
351 } else if (strcmp(category, "ether") == 0) {
352 free(f_ether);
353 f_ether = strdup(modifier);
354 } else if (strcmp(category, "inet") == 0) {
355 free(f_inet);
356 f_inet = strdup(modifier);
357 } else if (strcmp(category, "inet6") == 0) {
358 free(f_inet6);
359 f_inet6 = strdup(modifier);
360 }
361 }
362 free(formatstr);
363 }
364
365 #ifdef WITHOUT_NETLINK
366 static struct ifaddrs *
sortifaddrs(struct ifaddrs * list,int (* compare)(struct ifaddrs *,struct ifaddrs *,struct ifa_queue *),struct ifa_queue * q)367 sortifaddrs(struct ifaddrs *list,
368 int (*compare)(struct ifaddrs *, struct ifaddrs *, struct ifa_queue *),
369 struct ifa_queue *q)
370 {
371 struct ifaddrs *right, *temp, *last, *result, *next, *tail;
372
373 right = list;
374 temp = list;
375 last = list;
376 result = NULL;
377 next = NULL;
378 tail = NULL;
379
380 if (!list || !list->ifa_next)
381 return (list);
382
383 while (temp && temp->ifa_next) {
384 last = right;
385 right = right->ifa_next;
386 temp = temp->ifa_next->ifa_next;
387 }
388
389 last->ifa_next = NULL;
390
391 list = sortifaddrs(list, compare, q);
392 right = sortifaddrs(right, compare, q);
393
394 while (list || right) {
395
396 if (!right) {
397 next = list;
398 list = list->ifa_next;
399 } else if (!list) {
400 next = right;
401 right = right->ifa_next;
402 } else if (compare(list, right, q) <= 0) {
403 next = list;
404 list = list->ifa_next;
405 } else {
406 next = right;
407 right = right->ifa_next;
408 }
409
410 if (!result)
411 result = next;
412 else
413 tail->ifa_next = next;
414
415 tail = next;
416 }
417
418 return (result);
419 }
420 #endif
421
422 static void
printifnamemaybe(void)423 printifnamemaybe(void)
424 {
425 if (ifname_to_print[0] != '\0')
426 printf("%s\n", ifname_to_print);
427 }
428
429 static void
list_interfaces(if_ctx * ctx)430 list_interfaces(if_ctx *ctx)
431 {
432 #ifdef WITHOUT_NETLINK
433 list_interfaces_ioctl(ctx);
434 #else
435 list_interfaces_nl(ctx->args);
436 #endif
437 }
438
439 static char *
args_peek(struct ifconfig_args * args)440 args_peek(struct ifconfig_args *args)
441 {
442 if (args->argc > 0)
443 return (args->argv[0]);
444 return (NULL);
445 }
446
447 static char *
args_pop(struct ifconfig_args * args)448 args_pop(struct ifconfig_args *args)
449 {
450 if (args->argc == 0)
451 return (NULL);
452
453 char *arg = args->argv[0];
454
455 args->argc--;
456 args->argv++;
457
458 return (arg);
459 }
460
461 static void
args_parse(struct ifconfig_args * args,int argc,char * argv[])462 args_parse(struct ifconfig_args *args, int argc, char *argv[])
463 {
464 char options[1024];
465 struct option *p;
466 #ifdef JAIL
467 int jid;
468 #endif
469 int c;
470
471 /* Parse leading line options */
472 strlcpy(options, "G:adDf:j:klmnuv", sizeof(options));
473 for (p = opts; p != NULL; p = p->next)
474 strlcat(options, p->opt, sizeof(options));
475 while ((c = getopt(argc, argv, options)) != -1) {
476 switch (c) {
477 case 'a': /* scan all interfaces */
478 args->all = true;
479 break;
480 case 'd': /* restrict scan to "down" interfaces */
481 args->downonly = true;
482 break;
483 case 'D': /* Print driver name */
484 args->drivername = true;
485 break;
486 case 'f':
487 if (optarg == NULL)
488 usage();
489 setformat(optarg);
490 break;
491 case 'G':
492 if (optarg == NULL || args->all == 0)
493 usage();
494 args->nogroup = optarg;
495 break;
496 case 'j':
497 #ifdef JAIL
498 if (optarg == NULL)
499 usage();
500 jid = jail_getid(optarg);
501 if (jid == -1)
502 Perror("jail not found");
503 if (jail_attach(jid) != 0)
504 Perror("cannot attach to jail");
505 #else
506 Perror("not built with jail support");
507 #endif
508 break;
509 case 'k':
510 args->printkeys = true;
511 break;
512 case 'l': /* scan interface names only */
513 args->namesonly = true;
514 break;
515 case 'm': /* show media choices in status */
516 args->supmedia = true;
517 break;
518 case 'n': /* suppress module loading */
519 args->noload = true;
520 break;
521 case 'u': /* restrict scan to "up" interfaces */
522 args->uponly = true;
523 break;
524 case 'v':
525 args->verbose++;
526 break;
527 case 'g':
528 if (args->all) {
529 if (optarg == NULL)
530 usage();
531 args->matchgroup = optarg;
532 break;
533 }
534 /* FALLTHROUGH */
535 default:
536 for (p = opts; p != NULL; p = p->next)
537 if (p->opt[0] == c) {
538 p->cb(optarg);
539 break;
540 }
541 if (p == NULL)
542 usage();
543 break;
544 }
545 }
546 argc -= optind;
547 argv += optind;
548
549 /* -l cannot be used with -a or -m */
550 if (args->namesonly && (args->all || args->supmedia))
551 usage();
552
553 /* nonsense.. */
554 if (args->uponly && args->downonly)
555 usage();
556
557 /* no arguments is equivalent to '-a' */
558 if (!args->namesonly && argc < 1)
559 args->all = 1;
560
561 /* -a and -l allow an address family arg to limit the output */
562 if (args->all || args->namesonly) {
563 if (argc > 1)
564 usage();
565
566 if (argc == 1) {
567 const struct afswtch *afp = af_getbyname(*argv);
568
569 if (afp == NULL) {
570 warnx("Address family '%s' unknown.", *argv);
571 usage();
572 }
573 if (afp->af_name != NULL)
574 argc--, argv++;
575 /* leave with afp non-zero */
576 args->afp = afp;
577 }
578 } else {
579 /* not listing, need an argument */
580 if (argc < 1)
581 usage();
582 }
583
584 args->argc = argc;
585 args->argv = argv;
586 }
587
588 static int
ifconfig(if_ctx * ctx,int iscreate,const struct afswtch * uafp)589 ifconfig(if_ctx *ctx, int iscreate, const struct afswtch *uafp)
590 {
591 #ifdef WITHOUT_NETLINK
592 return (ifconfig_ioctl(ctx, iscreate, uafp));
593 #else
594 return (ifconfig_nl(ctx, iscreate, uafp));
595 #endif
596 }
597
598 static bool
isargcreate(const char * arg)599 isargcreate(const char *arg)
600 {
601 if (arg == NULL)
602 return (false);
603
604 if (strcmp(arg, "create") == 0 || strcmp(arg, "plumb") == 0)
605 return (true);
606
607 return (false);
608 }
609
610 static bool
isnametoolong(const char * ifname)611 isnametoolong(const char *ifname)
612 {
613 return (strlen(ifname) >= IFNAMSIZ);
614 }
615
616 int
main(int ac,char * av[])617 main(int ac, char *av[])
618 {
619 char *envformat;
620 int flags;
621 struct ifconfig_args _args = {};
622 struct ifconfig_args *args = &_args;
623
624 struct ifconfig_context ctx = {
625 .args = args,
626 .io_s = -1,
627 };
628
629 lifh = ifconfig_open();
630 if (lifh == NULL)
631 err(EXIT_FAILURE, "ifconfig_open");
632
633 envformat = getenv("IFCONFIG_FORMAT");
634 if (envformat != NULL)
635 setformat(envformat);
636
637 /*
638 * Ensure we print interface name when expected to,
639 * even if we terminate early due to error.
640 */
641 atexit(printifnamemaybe);
642
643 args_parse(args, ac, av);
644
645 if (!args->all && !args->namesonly) {
646 /* not listing, need an argument */
647 args->ifname = args_pop(args);
648 ctx.ifname = args->ifname;
649
650 /* check and maybe load support for this interface */
651 ifmaybeload(args, args->ifname);
652
653 char *arg = args_peek(args);
654 if (if_nametoindex(args->ifname) == 0) {
655 /*
656 * NOTE: We must special-case the `create' command
657 * right here as we would otherwise fail when trying
658 * to find the interface.
659 */
660 if (isargcreate(arg)) {
661 if (isnametoolong(args->ifname))
662 errx(1, "%s: cloning name too long",
663 args->ifname);
664 ifconfig(&ctx, 1, NULL);
665 exit(exit_code);
666 }
667 #ifdef JAIL
668 /*
669 * NOTE: We have to special-case the `-vnet' command
670 * right here as we would otherwise fail when trying
671 * to find the interface as it lives in another vnet.
672 */
673 if (arg != NULL && (strcmp(arg, "-vnet") == 0)) {
674 if (isnametoolong(args->ifname))
675 errx(1, "%s: interface name too long",
676 args->ifname);
677 ifconfig(&ctx, 0, NULL);
678 exit(exit_code);
679 }
680 #endif
681 errx(1, "interface %s does not exist", args->ifname);
682 } else {
683 /*
684 * Do not allow use `create` command as hostname if
685 * address family is not specified.
686 */
687 if (isargcreate(arg)) {
688 if (args->argc == 1)
689 errx(1, "interface %s already exists",
690 args->ifname);
691 args_pop(args);
692 }
693 }
694 }
695
696 /* Check for address family */
697 if (args->argc > 0) {
698 args->afp = af_getbyname(args_peek(args));
699 if (args->afp != NULL)
700 args_pop(args);
701 }
702
703 /*
704 * Check for a requested configuration action on a single interface,
705 * which doesn't require building, sorting, and searching the entire
706 * system address list
707 */
708 if ((args->argc > 0) && (args->ifname != NULL)) {
709 if (isnametoolong(args->ifname))
710 warnx("%s: interface name too long, skipping", args->ifname);
711 else {
712 flags = getifflags(args->ifname, -1, false);
713 if (!(((flags & IFF_CANTCONFIG) != 0) ||
714 (args->downonly && (flags & IFF_UP) != 0) ||
715 (args->uponly && (flags & IFF_UP) == 0)))
716 ifconfig(&ctx, 0, args->afp);
717 }
718 goto done;
719 }
720
721 args->allfamilies = args->afp == NULL;
722
723 list_interfaces(&ctx);
724
725 done:
726 freeformat();
727 ifconfig_close(lifh);
728 exit(exit_code);
729 }
730
731 bool
match_ether(const struct sockaddr_dl * sdl)732 match_ether(const struct sockaddr_dl *sdl)
733 {
734 switch (sdl->sdl_type) {
735 case IFT_ETHER:
736 case IFT_L2VLAN:
737 case IFT_BRIDGE:
738 if (sdl->sdl_alen == ETHER_ADDR_LEN)
739 return (true);
740 default:
741 return (false);
742 }
743 }
744
745 bool
match_if_flags(struct ifconfig_args * args,int if_flags)746 match_if_flags(struct ifconfig_args *args, int if_flags)
747 {
748 if ((if_flags & IFF_CANTCONFIG) != 0)
749 return (false);
750 if (args->downonly && (if_flags & IFF_UP) != 0)
751 return (false);
752 if (args->uponly && (if_flags & IFF_UP) == 0)
753 return (false);
754 return (true);
755 }
756
757 #ifdef WITHOUT_NETLINK
758 static bool
match_afp(const struct afswtch * afp,int sa_family,const struct sockaddr_dl * sdl)759 match_afp(const struct afswtch *afp, int sa_family, const struct sockaddr_dl *sdl)
760 {
761 if (afp == NULL)
762 return (true);
763 /* special case for "ether" address family */
764 if (!strcmp(afp->af_name, "ether")) {
765 if (sdl == NULL || !match_ether(sdl))
766 return (false);
767 return (true);
768 }
769 return (afp->af_af == sa_family);
770 }
771
772 static void
list_interfaces_ioctl(if_ctx * ctx)773 list_interfaces_ioctl(if_ctx *ctx)
774 {
775 struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q);
776 struct ifaddrs *ifap, *sifap, *ifa;
777 struct ifa_order_elt *cur, *tmp;
778 char *namecp = NULL;
779 int ifindex;
780 struct ifconfig_args *args = ctx->args;
781
782 if (getifaddrs(&ifap) != 0)
783 err(EXIT_FAILURE, "getifaddrs");
784
785 char *cp = NULL;
786
787 if (calcorders(ifap, &q) != 0)
788 err(EXIT_FAILURE, "calcorders");
789
790 sifap = sortifaddrs(ifap, cmpifaddrs, &q);
791
792 TAILQ_FOREACH_SAFE(cur, &q, link, tmp)
793 free(cur);
794
795 ifindex = 0;
796 for (ifa = sifap; ifa; ifa = ifa->ifa_next) {
797 struct ifreq paifr = {};
798 const struct sockaddr_dl *sdl;
799
800 strlcpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
801 if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
802 memcpy(&paifr.ifr_addr, ifa->ifa_addr,
803 ifa->ifa_addr->sa_len);
804 }
805
806 if (args->ifname != NULL && strcmp(args->ifname, ifa->ifa_name) != 0)
807 continue;
808 if (ifa->ifa_addr->sa_family == AF_LINK)
809 sdl = satosdl_c(ifa->ifa_addr);
810 else
811 sdl = NULL;
812 if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !args->namesonly)
813 continue;
814 if (isnametoolong(ifa->ifa_name)) {
815 warnx("%s: interface name too long, skipping",
816 ifa->ifa_name);
817 continue;
818 }
819 cp = ifa->ifa_name;
820
821 if (!match_if_flags(args, ifa->ifa_flags))
822 continue;
823 if (!group_member(ifa->ifa_name, args->matchgroup, args->nogroup))
824 continue;
825 ctx->ifname = cp;
826 /*
827 * Are we just listing the interfaces?
828 */
829 if (args->namesonly) {
830 if (namecp == cp)
831 continue;
832 if (!match_afp(args->afp, ifa->ifa_addr->sa_family, sdl))
833 continue;
834 namecp = cp;
835 ifindex++;
836 if (ifindex > 1)
837 printf(" ");
838 fputs(cp, stdout);
839 continue;
840 }
841 ifindex++;
842
843 if (args->argc > 0)
844 ifconfig(ctx, 0, args->afp);
845 else
846 status(ctx, sdl, ifa);
847 }
848 if (args->namesonly)
849 printf("\n");
850 freeifaddrs(ifap);
851 }
852 #endif
853
854 /*
855 * Returns true if an interface should be listed because any its groups
856 * matches shell pattern "match" and none of groups matches pattern "nomatch".
857 * If any pattern is NULL, corresponding condition is skipped.
858 */
859 bool
group_member(const char * ifname,const char * match,const char * nomatch)860 group_member(const char *ifname, const char *match, const char *nomatch)
861 {
862 static int sock = -1;
863
864 struct ifgroupreq ifgr;
865 struct ifg_req *ifg;
866 unsigned int len;
867 bool matched, nomatched;
868
869 /* Sanity checks. */
870 if (match == NULL && nomatch == NULL)
871 return (true);
872 if (ifname == NULL)
873 return (false);
874
875 memset(&ifgr, 0, sizeof(ifgr));
876 strlcpy(ifgr.ifgr_name, ifname, IFNAMSIZ);
877
878 /* The socket is opened once. Let _exit() close it. */
879 if (sock == -1) {
880 sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
881 if (sock == -1)
882 errx(1, "%s: socket(AF_LOCAL,SOCK_DGRAM)", __func__);
883 }
884
885 /* Determine amount of memory for the list of groups. */
886 if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) {
887 if (errno == EINVAL || errno == ENOTTY)
888 return (false);
889 else
890 errx(1, "%s: SIOCGIFGROUP", __func__);
891 }
892
893 /* Obtain the list of groups. */
894 len = ifgr.ifgr_len;
895 ifgr.ifgr_groups =
896 (struct ifg_req *)calloc(len / sizeof(*ifg), sizeof(*ifg));
897
898 if (ifgr.ifgr_groups == NULL)
899 errx(1, "%s: no memory", __func__);
900 if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1)
901 errx(1, "%s: SIOCGIFGROUP", __func__);
902
903 /* Perform matching. */
904 matched = false;
905 nomatched = true;
906 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(*ifg); ifg++) {
907 len -= sizeof(*ifg);
908 if (match && !matched)
909 matched = !fnmatch(match, ifg->ifgrq_group, 0);
910 if (nomatch && nomatched)
911 nomatched = fnmatch(nomatch, ifg->ifgrq_group, 0);
912 }
913 free(ifgr.ifgr_groups);
914
915 if (match && !nomatch)
916 return (matched);
917 if (!match && nomatch)
918 return (nomatched);
919 return (matched && nomatched);
920 }
921
922 static struct afswtch *afs = NULL;
923
924 void
af_register(struct afswtch * p)925 af_register(struct afswtch *p)
926 {
927 p->af_next = afs;
928 afs = p;
929 }
930
931 static struct afswtch *
af_getbyname(const char * name)932 af_getbyname(const char *name)
933 {
934 struct afswtch *afp;
935
936 for (afp = afs; afp != NULL; afp = afp->af_next)
937 if (strcmp(afp->af_name, name) == 0)
938 return afp;
939 return NULL;
940 }
941
942 struct afswtch *
af_getbyfamily(int af)943 af_getbyfamily(int af)
944 {
945 struct afswtch *afp;
946
947 for (afp = afs; afp != NULL; afp = afp->af_next)
948 if (afp->af_af == af)
949 return afp;
950 return NULL;
951 }
952
953 void
af_other_status(if_ctx * ctx)954 af_other_status(if_ctx *ctx)
955 {
956 struct afswtch *afp;
957 uint8_t afmask[howmany(AF_MAX, NBBY)];
958
959 memset(afmask, 0, sizeof(afmask));
960 for (afp = afs; afp != NULL; afp = afp->af_next) {
961 if (afp->af_other_status == NULL)
962 continue;
963 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
964 continue;
965 afp->af_other_status(ctx);
966 setbit(afmask, afp->af_af);
967 }
968 }
969
970 static void
af_all_tunnel_status(if_ctx * ctx)971 af_all_tunnel_status(if_ctx *ctx)
972 {
973 struct afswtch *afp;
974 uint8_t afmask[howmany(AF_MAX, NBBY)];
975
976 memset(afmask, 0, sizeof(afmask));
977 for (afp = afs; afp != NULL; afp = afp->af_next) {
978 if (afp->af_status_tunnel == NULL)
979 continue;
980 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
981 continue;
982 afp->af_status_tunnel(ctx);
983 setbit(afmask, afp->af_af);
984 }
985 }
986
987 static struct cmd *cmds = NULL;
988
989 void
cmd_register(struct cmd * p)990 cmd_register(struct cmd *p)
991 {
992 p->c_next = cmds;
993 cmds = p;
994 }
995
996 static const struct cmd *
cmd_lookup(const char * name,int iscreate)997 cmd_lookup(const char *name, int iscreate)
998 {
999 const struct cmd *p;
1000
1001 for (p = cmds; p != NULL; p = p->c_next)
1002 if (strcmp(name, p->c_name) == 0) {
1003 if (iscreate) {
1004 if (p->c_iscloneop)
1005 return p;
1006 } else {
1007 if (!p->c_iscloneop)
1008 return p;
1009 }
1010 }
1011 return NULL;
1012 }
1013
1014 struct callback {
1015 callback_func *cb_func;
1016 void *cb_arg;
1017 struct callback *cb_next;
1018 };
1019 static struct callback *callbacks = NULL;
1020
1021 void
callback_register(callback_func * func,void * arg)1022 callback_register(callback_func *func, void *arg)
1023 {
1024 struct callback *cb;
1025
1026 cb = malloc(sizeof(struct callback));
1027 if (cb == NULL)
1028 errx(1, "unable to allocate memory for callback");
1029 cb->cb_func = func;
1030 cb->cb_arg = arg;
1031 cb->cb_next = callbacks;
1032 callbacks = cb;
1033 }
1034
1035 /* specially-handled commands */
1036 static void setifaddr(if_ctx *ctx, const char *addr, int param);
1037 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
1038
1039 static void setifdstaddr(if_ctx *ctx, const char *addr, int param __unused);
1040 static const struct cmd setifdstaddr_cmd =
1041 DEF_CMD("ifdstaddr", 0, setifdstaddr);
1042
1043 int
af_exec_ioctl(if_ctx * ctx,unsigned long action,void * data)1044 af_exec_ioctl(if_ctx *ctx, unsigned long action, void *data)
1045 {
1046 struct ifreq *req = (struct ifreq *)data;
1047
1048 strlcpy(req->ifr_name, ctx->ifname, sizeof(req->ifr_name));
1049 if (ioctl_ctx(ctx, action, req) == 0)
1050 return (0);
1051 return (errno);
1052 }
1053
1054 static void
delifaddr(if_ctx * ctx,const struct afswtch * afp)1055 delifaddr(if_ctx *ctx, const struct afswtch *afp)
1056 {
1057 int error;
1058
1059 if (afp->af_exec == NULL) {
1060 warnx("interface %s cannot change %s addresses!",
1061 ctx->ifname, afp->af_name);
1062 clearaddr = 0;
1063 return;
1064 }
1065
1066 error = afp->af_exec(ctx, afp->af_difaddr, afp->af_ridreq);
1067 if (error != 0) {
1068 if (error == EADDRNOTAVAIL && (doalias >= 0)) {
1069 /* means no previous address for interface */
1070 } else
1071 Perrorc("ioctl (SIOCDIFADDR)", error);
1072 }
1073 }
1074
1075 static void
addifaddr(if_ctx * ctx,const struct afswtch * afp)1076 addifaddr(if_ctx *ctx, const struct afswtch *afp)
1077 {
1078 if (afp->af_exec == NULL) {
1079 warnx("interface %s cannot change %s addresses!",
1080 ctx->ifname, afp->af_name);
1081 newaddr = 0;
1082 return;
1083 }
1084
1085 if (setaddr || setmask) {
1086 int error = afp->af_exec(ctx, afp->af_aifaddr, afp->af_addreq);
1087 if (error != 0)
1088 Perrorc("ioctl (SIOCAIFADDR)", error);
1089 }
1090 }
1091
1092 int
ifconfig_ioctl(if_ctx * orig_ctx,int iscreate,const struct afswtch * uafp)1093 ifconfig_ioctl(if_ctx *orig_ctx, int iscreate, const struct afswtch *uafp)
1094 {
1095 const struct afswtch *afp, *nafp;
1096 const struct cmd *p;
1097 struct callback *cb;
1098 int s;
1099 int argc = orig_ctx->args->argc;
1100 char *const *argv = orig_ctx->args->argv;
1101 struct ifconfig_context _ctx = {
1102 .args = orig_ctx->args,
1103 .io_ss = orig_ctx->io_ss,
1104 .ifname = orig_ctx->ifname,
1105 };
1106 struct ifconfig_context *ctx = &_ctx;
1107
1108 struct ifreq ifr = {};
1109 strlcpy(ifr.ifr_name, ctx->ifname, sizeof ifr.ifr_name);
1110 afp = NULL;
1111 if (uafp != NULL)
1112 afp = uafp;
1113 /*
1114 * This is the historical "accident" allowing users to configure IPv4
1115 * addresses without the "inet" keyword which while a nice feature has
1116 * proven to complicate other things. We cannot remove this but only
1117 * make sure we will never have a similar implicit default for IPv6 or
1118 * any other address familiy. We need a fallback though for
1119 * ifconfig IF up/down etc. to work without INET support as people
1120 * never used ifconfig IF link up/down, etc. either.
1121 */
1122 #ifndef RESCUE
1123 #ifdef INET
1124 if (afp == NULL && feature_present("inet"))
1125 afp = af_getbyname("inet");
1126 #endif
1127 #endif
1128 if (afp == NULL)
1129 afp = af_getbyname("link");
1130 if (afp == NULL) {
1131 warnx("Please specify an address_family.");
1132 usage();
1133 }
1134
1135 top:
1136 ifr.ifr_addr.sa_family =
1137 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
1138 AF_LOCAL : afp->af_af;
1139
1140 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
1141 (uafp != NULL || errno != EAFNOSUPPORT ||
1142 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
1143 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
1144
1145 ctx->io_s = s;
1146 ctx->afp = afp;
1147
1148 while (argc > 0) {
1149 p = cmd_lookup(*argv, iscreate);
1150 if (iscreate && p == NULL) {
1151 /*
1152 * Push the clone create callback so the new
1153 * device is created and can be used for any
1154 * remaining arguments.
1155 */
1156 cb = callbacks;
1157 if (cb == NULL)
1158 errx(1, "internal error, no callback");
1159 callbacks = cb->cb_next;
1160 cb->cb_func(ctx, cb->cb_arg);
1161 iscreate = 0;
1162 /*
1163 * Handle any address family spec that
1164 * immediately follows and potentially
1165 * recreate the socket.
1166 */
1167 nafp = af_getbyname(*argv);
1168 if (nafp != NULL) {
1169 argc--, argv++;
1170 if (nafp != afp) {
1171 close(s);
1172 afp = nafp;
1173 goto top;
1174 }
1175 }
1176 /*
1177 * Look for a normal parameter.
1178 */
1179 continue;
1180 }
1181 if (p == NULL) {
1182 /*
1183 * Not a recognized command, choose between setting
1184 * the interface address and the dst address.
1185 */
1186 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
1187 }
1188 if (p->c_parameter == NEXTARG && p->c_u.c_func) {
1189 if (argv[1] == NULL)
1190 errx(1, "'%s' requires argument",
1191 p->c_name);
1192 p->c_u.c_func(ctx, argv[1], 0);
1193 argc--, argv++;
1194 } else if (p->c_parameter == OPTARG && p->c_u.c_func) {
1195 p->c_u.c_func(ctx, argv[1], 0);
1196 if (argv[1] != NULL)
1197 argc--, argv++;
1198 } else if (p->c_parameter == NEXTARG2 && p->c_u.c_func2) {
1199 if (argc < 3)
1200 errx(1, "'%s' requires 2 arguments",
1201 p->c_name);
1202 p->c_u.c_func2(ctx, argv[1], argv[2]);
1203 argc -= 2, argv += 2;
1204 } else if (p->c_parameter == SPARAM && p->c_u.c_func3) {
1205 p->c_u.c_func3(ctx, *argv, p->c_sparameter);
1206 } else if (p->c_parameter == ARGVECTOR && p->c_u.c_funcv) {
1207 int argsdone;
1208
1209 argsdone = p->c_u.c_funcv(ctx, argc - 1,
1210 (const char *const *)argv + 1);
1211 argc -= argsdone;
1212 argv += argsdone;
1213 } else if (p->c_u.c_func)
1214 p->c_u.c_func(ctx, *argv, p->c_parameter);
1215 argc--, argv++;
1216 }
1217
1218 /*
1219 * Do any post argument processing required by the address family.
1220 */
1221 if (afp->af_postproc != NULL)
1222 afp->af_postproc(ctx, newaddr, getifflags(ctx->ifname, s, true));
1223 /*
1224 * Do deferred callbacks registered while processing
1225 * command-line arguments.
1226 */
1227 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
1228 cb->cb_func(ctx, cb->cb_arg);
1229 /*
1230 * Do deferred operations.
1231 */
1232 if (clearaddr)
1233 delifaddr(ctx, afp);
1234 if (newaddr)
1235 addifaddr(ctx, afp);
1236
1237 close(s);
1238 return(0);
1239 }
1240
1241 static void
setifaddr(if_ctx * ctx,const char * addr,int param __unused)1242 setifaddr(if_ctx *ctx, const char *addr, int param __unused)
1243 {
1244 const struct afswtch *afp = ctx->afp;
1245
1246 if (afp->af_getaddr == NULL)
1247 return;
1248 /*
1249 * Delay the ioctl to set the interface addr until flags are all set.
1250 * The address interpretation may depend on the flags,
1251 * and the flags may change when the address is set.
1252 */
1253 setaddr++;
1254 if (doalias == 0 && afp->af_af != AF_LINK)
1255 clearaddr = 1;
1256 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
1257 }
1258
1259 static void
settunnel(if_ctx * ctx,const char * src,const char * dst)1260 settunnel(if_ctx *ctx, const char *src, const char *dst)
1261 {
1262 const struct afswtch *afp = ctx->afp;
1263 struct addrinfo *srcres, *dstres;
1264 int ecode;
1265
1266 if (afp->af_settunnel == NULL) {
1267 warn("address family %s does not support tunnel setup",
1268 afp->af_name);
1269 return;
1270 }
1271
1272 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
1273 errx(1, "error in parsing address string: %s",
1274 gai_strerror(ecode));
1275
1276 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
1277 errx(1, "error in parsing address string: %s",
1278 gai_strerror(ecode));
1279
1280 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
1281 errx(1,
1282 "source and destination address families do not match");
1283
1284 afp->af_settunnel(ctx, srcres, dstres);
1285
1286 freeaddrinfo(srcres);
1287 freeaddrinfo(dstres);
1288 }
1289
1290 static void
deletetunnel(if_ctx * ctx,const char * vname __unused,int param __unused)1291 deletetunnel(if_ctx *ctx, const char *vname __unused, int param __unused)
1292 {
1293 struct ifreq ifr = {};
1294
1295 if (ioctl_ctx_ifr(ctx, SIOCDIFPHYADDR, &ifr) < 0)
1296 err(1, "SIOCDIFPHYADDR");
1297 }
1298
1299 #ifdef JAIL
1300 static void
setifvnet(if_ctx * ctx,const char * jname,int dummy __unused)1301 setifvnet(if_ctx *ctx, const char *jname, int dummy __unused)
1302 {
1303 struct ifreq ifr = {};
1304
1305 ifr.ifr_jid = jail_getid(jname);
1306 if (ifr.ifr_jid < 0)
1307 errx(1, "%s", jail_errmsg);
1308 if (ioctl_ctx_ifr(ctx, SIOCSIFVNET, &ifr) < 0)
1309 err(1, "SIOCSIFVNET");
1310 }
1311
1312 static void
setifrvnet(if_ctx * ctx,const char * jname,int dummy __unused)1313 setifrvnet(if_ctx *ctx, const char *jname, int dummy __unused)
1314 {
1315 struct ifreq ifr = {};
1316
1317 ifr.ifr_jid = jail_getid(jname);
1318 if (ifr.ifr_jid < 0)
1319 errx(1, "%s", jail_errmsg);
1320 if (ioctl_ctx_ifr(ctx, SIOCSIFRVNET, &ifr) < 0)
1321 err(1, "SIOCSIFRVNET(%d, %s)", ifr.ifr_jid, ifr.ifr_name);
1322 }
1323 #endif
1324
1325 static void
setifnetmask(if_ctx * ctx,const char * addr,int dummy __unused)1326 setifnetmask(if_ctx *ctx, const char *addr, int dummy __unused)
1327 {
1328 const struct afswtch *afp = ctx->afp;
1329
1330 if (afp->af_getaddr != NULL) {
1331 setmask++;
1332 afp->af_getaddr(addr, MASK);
1333 }
1334 }
1335
1336 static void
setifbroadaddr(if_ctx * ctx,const char * addr,int dummy __unused)1337 setifbroadaddr(if_ctx *ctx, const char *addr, int dummy __unused)
1338 {
1339 const struct afswtch *afp = ctx->afp;
1340
1341 if (afp->af_getaddr != NULL)
1342 afp->af_getaddr(addr, BRDADDR);
1343 }
1344
1345 static void
notealias(if_ctx * ctx,const char * addr __unused,int param)1346 notealias(if_ctx *ctx, const char *addr __unused, int param)
1347 {
1348 const struct afswtch *afp = ctx->afp;
1349
1350 if (setaddr && doalias == 0 && param < 0) {
1351 if (afp->af_copyaddr != NULL)
1352 afp->af_copyaddr(ctx, RIDADDR, ADDR);
1353 }
1354 doalias = param;
1355 if (param < 0) {
1356 clearaddr = 1;
1357 newaddr = 0;
1358 } else
1359 clearaddr = 0;
1360 }
1361
1362 static void
setifdstaddr(if_ctx * ctx,const char * addr,int param __unused)1363 setifdstaddr(if_ctx *ctx, const char *addr, int param __unused)
1364 {
1365 const struct afswtch *afp = ctx->afp;
1366
1367 if (afp->af_getaddr != NULL)
1368 afp->af_getaddr(addr, DSTADDR);
1369 }
1370
1371 static int
getifflags(const char * ifname,int us,bool err_ok)1372 getifflags(const char *ifname, int us, bool err_ok)
1373 {
1374 struct ifreq my_ifr;
1375 int s;
1376
1377 memset(&my_ifr, 0, sizeof(my_ifr));
1378 (void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name));
1379 if (us < 0) {
1380 if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)
1381 err(1, "socket(family AF_LOCAL,SOCK_DGRAM");
1382 } else
1383 s = us;
1384 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
1385 if (!err_ok) {
1386 Perror("ioctl (SIOCGIFFLAGS)");
1387 exit(1);
1388 }
1389 }
1390 if (us < 0)
1391 close(s);
1392 return ((my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16));
1393 }
1394
1395 /*
1396 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
1397 * of the ifreq structure, which may confuse other parts of ifconfig.
1398 * Make a private copy so we can avoid that.
1399 */
1400 static void
clearifflags(if_ctx * ctx,const char * vname,int value)1401 clearifflags(if_ctx *ctx, const char *vname, int value)
1402 {
1403 struct ifreq my_ifr;
1404 int flags;
1405
1406 flags = getifflags(ctx->ifname, ctx->io_s, false);
1407 flags &= ~value;
1408 memset(&my_ifr, 0, sizeof(my_ifr));
1409 strlcpy(my_ifr.ifr_name, ctx->ifname, sizeof(my_ifr.ifr_name));
1410 my_ifr.ifr_flags = flags & 0xffff;
1411 my_ifr.ifr_flagshigh = flags >> 16;
1412 if (ioctl(ctx->io_s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
1413 Perror(vname);
1414 }
1415
1416 static void
setifflags(if_ctx * ctx,const char * vname,int value)1417 setifflags(if_ctx *ctx, const char *vname, int value)
1418 {
1419 struct ifreq my_ifr;
1420 int flags;
1421
1422 flags = getifflags(ctx->ifname, ctx->io_s, false);
1423 flags |= value;
1424 memset(&my_ifr, 0, sizeof(my_ifr));
1425 strlcpy(my_ifr.ifr_name, ctx->ifname, sizeof(my_ifr.ifr_name));
1426 my_ifr.ifr_flags = flags & 0xffff;
1427 my_ifr.ifr_flagshigh = flags >> 16;
1428 if (ioctl(ctx->io_s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
1429 Perror(vname);
1430 }
1431
1432 void
clearifcap(if_ctx * ctx,const char * vname,int value)1433 clearifcap(if_ctx *ctx, const char *vname, int value)
1434 {
1435 struct ifreq ifr = {};
1436 int flags;
1437
1438 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) {
1439 Perror("ioctl (SIOCGIFCAP)");
1440 exit(1);
1441 }
1442 flags = ifr.ifr_curcap;
1443 flags &= ~value;
1444 flags &= ifr.ifr_reqcap;
1445 /* Check for no change in capabilities. */
1446 if (ifr.ifr_curcap == flags)
1447 return;
1448 ifr.ifr_reqcap = flags;
1449 if (ioctl_ctx(ctx, SIOCSIFCAP, &ifr) < 0)
1450 Perror(vname);
1451 }
1452
1453 void
setifcap(if_ctx * ctx,const char * vname,int value)1454 setifcap(if_ctx *ctx, const char *vname, int value)
1455 {
1456 struct ifreq ifr = {};
1457 int flags;
1458
1459 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) {
1460 Perror("ioctl (SIOCGIFCAP)");
1461 exit(1);
1462 }
1463 flags = ifr.ifr_curcap;
1464 flags |= value;
1465 flags &= ifr.ifr_reqcap;
1466 /* Check for no change in capabilities. */
1467 if (ifr.ifr_curcap == flags)
1468 return;
1469 ifr.ifr_reqcap = flags;
1470 if (ioctl_ctx(ctx, SIOCSIFCAP, &ifr) < 0)
1471 Perror(vname);
1472 }
1473
1474 void
setifcapnv(if_ctx * ctx,const char * vname,const char * arg)1475 setifcapnv(if_ctx *ctx, const char *vname, const char *arg)
1476 {
1477 nvlist_t *nvcap;
1478 void *buf;
1479 char *marg, *mopt;
1480 size_t nvbuflen;
1481 bool neg;
1482 struct ifreq ifr = {};
1483
1484 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0)
1485 Perror("ioctl (SIOCGIFCAP)");
1486 if ((ifr.ifr_curcap & IFCAP_NV) == 0) {
1487 warnx("IFCAP_NV not supported");
1488 return; /* Not exit() */
1489 }
1490
1491 marg = strdup(arg);
1492 if (marg == NULL)
1493 Perror("strdup");
1494 nvcap = nvlist_create(0);
1495 if (nvcap == NULL)
1496 Perror("nvlist_create");
1497 while ((mopt = strsep(&marg, ",")) != NULL) {
1498 neg = *mopt == '-';
1499 if (neg)
1500 mopt++;
1501 if (strcmp(mopt, "rxtls") == 0) {
1502 nvlist_add_bool(nvcap, "rxtls4", !neg);
1503 nvlist_add_bool(nvcap, "rxtls6", !neg);
1504 } else {
1505 nvlist_add_bool(nvcap, mopt, !neg);
1506 }
1507 }
1508 buf = nvlist_pack(nvcap, &nvbuflen);
1509 if (buf == NULL) {
1510 errx(1, "nvlist_pack error");
1511 exit(1);
1512 }
1513 ifr.ifr_cap_nv.buf_length = ifr.ifr_cap_nv.length = nvbuflen;
1514 ifr.ifr_cap_nv.buffer = buf;
1515 if (ioctl_ctx(ctx, SIOCSIFCAPNV, (caddr_t)&ifr) < 0)
1516 Perror(vname);
1517 free(buf);
1518 nvlist_destroy(nvcap);
1519 free(marg);
1520 }
1521
1522 static void
setifmetric(if_ctx * ctx,const char * val,int dummy __unused)1523 setifmetric(if_ctx *ctx, const char *val, int dummy __unused)
1524 {
1525 struct ifreq ifr = {};
1526
1527 ifr.ifr_metric = atoi(val);
1528 if (ioctl_ctx_ifr(ctx, SIOCSIFMETRIC, &ifr) < 0)
1529 err(1, "ioctl SIOCSIFMETRIC (set metric)");
1530 }
1531
1532 static void
setifmtu(if_ctx * ctx,const char * val,int dummy __unused)1533 setifmtu(if_ctx *ctx, const char *val, int dummy __unused)
1534 {
1535 struct ifreq ifr = {};
1536
1537 ifr.ifr_mtu = atoi(val);
1538 if (ioctl_ctx_ifr(ctx, SIOCSIFMTU, &ifr) < 0)
1539 err(1, "ioctl SIOCSIFMTU (set mtu)");
1540 }
1541
1542 static void
setifpcp(if_ctx * ctx,const char * val,int arg __unused)1543 setifpcp(if_ctx *ctx, const char *val, int arg __unused)
1544 {
1545 struct ifreq ifr = {};
1546 u_long ul;
1547 char *endp;
1548
1549 ul = strtoul(val, &endp, 0);
1550 if (*endp != '\0')
1551 errx(1, "invalid value for pcp");
1552 if (ul > 7)
1553 errx(1, "value for pcp out of range");
1554 ifr.ifr_lan_pcp = ul;
1555 if (ioctl_ctx_ifr(ctx, SIOCSLANPCP, &ifr) == -1)
1556 err(1, "SIOCSLANPCP");
1557 }
1558
1559 static void
disableifpcp(if_ctx * ctx,const char * val __unused,int arg __unused)1560 disableifpcp(if_ctx *ctx, const char *val __unused, int arg __unused)
1561 {
1562 struct ifreq ifr = {};
1563
1564 ifr.ifr_lan_pcp = IFNET_PCP_NONE;
1565 if (ioctl_ctx_ifr(ctx, SIOCSLANPCP, &ifr) == -1)
1566 err(1, "SIOCSLANPCP");
1567 }
1568
1569 static void
setifname(if_ctx * ctx,const char * val,int dummy __unused)1570 setifname(if_ctx *ctx, const char *val, int dummy __unused)
1571 {
1572 struct ifreq ifr = {};
1573 char *newname;
1574
1575 ifr_set_name(&ifr, ctx->ifname);
1576 newname = strdup(val);
1577 if (newname == NULL)
1578 err(1, "no memory to set ifname");
1579 ifr.ifr_data = newname;
1580 if (ioctl_ctx(ctx, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
1581 free(newname);
1582 err(1, "ioctl SIOCSIFNAME (set name)");
1583 }
1584 ifname_update(ctx, newname);
1585 free(newname);
1586 }
1587
1588 static void
setifdescr(if_ctx * ctx,const char * val,int dummy __unused)1589 setifdescr(if_ctx *ctx, const char *val, int dummy __unused)
1590 {
1591 struct ifreq ifr = {};
1592 char *newdescr;
1593
1594 ifr.ifr_buffer.length = strlen(val) + 1;
1595 if (ifr.ifr_buffer.length == 1) {
1596 ifr.ifr_buffer.buffer = newdescr = NULL;
1597 ifr.ifr_buffer.length = 0;
1598 } else {
1599 newdescr = strdup(val);
1600 ifr.ifr_buffer.buffer = newdescr;
1601 if (newdescr == NULL) {
1602 warn("no memory to set ifdescr");
1603 return;
1604 }
1605 }
1606
1607 if (ioctl_ctx_ifr(ctx, SIOCSIFDESCR, &ifr) < 0)
1608 err(1, "ioctl SIOCSIFDESCR (set descr)");
1609
1610 free(newdescr);
1611 }
1612
1613 static void
unsetifdescr(if_ctx * ctx,const char * val __unused,int value __unused)1614 unsetifdescr(if_ctx *ctx, const char *val __unused, int value __unused)
1615 {
1616 setifdescr(ctx, "", 0);
1617 }
1618
1619 #ifdef WITHOUT_NETLINK
1620
1621 static const char *IFFBITS[] = {
1622 [0] = "UP",
1623 [1] = "BROADCAST",
1624 [2] = "DEBUG",
1625 [3] = "LOOPBACK",
1626 [4] = "POINTOPOINT",
1627 [6] = "RUNNING",
1628 [7] = "NOARP",
1629 [8] = "PROMISC",
1630 [9] = "ALLMULTI",
1631 [10] = "OACTIVE",
1632 [11] = "SIMPLEX",
1633 [12] = "LINK0",
1634 [13] = "LINK1",
1635 [14] = "LINK2",
1636 [15] = "MULTICAST",
1637 [17] = "PPROMISC",
1638 [18] = "MONITOR",
1639 [19] = "STATICARP",
1640 [20] = "STICKYARP",
1641 };
1642
1643 static const char *IFCAPBITS[] = {
1644 [0] = "RXCSUM",
1645 [1] = "TXCSUM",
1646 [2] = "NETCONS",
1647 [3] = "VLAN_MTU",
1648 [4] = "VLAN_HWTAGGING",
1649 [5] = "JUMBO_MTU",
1650 [6] = "POLLING",
1651 [7] = "VLAN_HWCSUM",
1652 [8] = "TSO4",
1653 [9] = "TSO6",
1654 [10] = "LRO",
1655 [11] = "WOL_UCAST",
1656 [12] = "WOL_MCAST",
1657 [13] = "WOL_MAGIC",
1658 [14] = "TOE4",
1659 [15] = "TOE6",
1660 [16] = "VLAN_HWFILTER",
1661 [18] = "VLAN_HWTSO",
1662 [19] = "LINKSTATE",
1663 [20] = "NETMAP",
1664 [21] = "RXCSUM_IPV6",
1665 [22] = "TXCSUM_IPV6",
1666 [24] = "TXRTLMT",
1667 [25] = "HWRXTSTMP",
1668 [26] = "NOMAP",
1669 [27] = "TXTLS4",
1670 [28] = "TXTLS6",
1671 [29] = "VXLAN_HWCSUM",
1672 [30] = "VXLAN_HWTSO",
1673 [31] = "TXTLS_RTLMT",
1674 };
1675
1676 static void
print_ifcap_nv(if_ctx * ctx)1677 print_ifcap_nv(if_ctx *ctx)
1678 {
1679 struct ifreq ifr = {};
1680 nvlist_t *nvcap;
1681 const char *nvname;
1682 void *buf, *cookie;
1683 bool first, val;
1684 int type;
1685
1686 buf = malloc(IFR_CAP_NV_MAXBUFSIZE);
1687 if (buf == NULL)
1688 Perror("malloc");
1689 ifr.ifr_cap_nv.buffer = buf;
1690 ifr.ifr_cap_nv.buf_length = IFR_CAP_NV_MAXBUFSIZE;
1691 if (ioctl_ctx_ifr(ctx, SIOCGIFCAPNV, &ifr) != 0)
1692 Perror("ioctl (SIOCGIFCAPNV)");
1693 nvcap = nvlist_unpack(ifr.ifr_cap_nv.buffer,
1694 ifr.ifr_cap_nv.length, 0);
1695 if (nvcap == NULL)
1696 Perror("nvlist_unpack");
1697 printf("\toptions");
1698 cookie = NULL;
1699 for (first = true;; first = false) {
1700 nvname = nvlist_next(nvcap, &type, &cookie);
1701 if (nvname == NULL) {
1702 printf("\n");
1703 break;
1704 }
1705 if (type == NV_TYPE_BOOL) {
1706 val = nvlist_get_bool(nvcap, nvname);
1707 if (val) {
1708 printf("%c%s",
1709 first ? ' ' : ',', nvname);
1710 }
1711 }
1712 }
1713 if (ctx->args->supmedia) {
1714 printf("\tcapabilities");
1715 cookie = NULL;
1716 for (first = true;; first = false) {
1717 nvname = nvlist_next(nvcap, &type,
1718 &cookie);
1719 if (nvname == NULL) {
1720 printf("\n");
1721 break;
1722 }
1723 if (type == NV_TYPE_BOOL)
1724 printf("%c%s", first ? ' ' :
1725 ',', nvname);
1726 }
1727 }
1728 nvlist_destroy(nvcap);
1729 free(buf);
1730
1731 if (ioctl_ctx(ctx, SIOCGIFCAP, (caddr_t)&ifr) != 0)
1732 Perror("ioctl (SIOCGIFCAP)");
1733 }
1734
1735 static void
print_ifcap(if_ctx * ctx)1736 print_ifcap(if_ctx *ctx)
1737 {
1738 struct ifreq ifr = {};
1739
1740 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) != 0)
1741 return;
1742
1743 if ((ifr.ifr_curcap & IFCAP_NV) != 0)
1744 print_ifcap_nv(ctx);
1745 else {
1746 printf("\toptions=%x", ifr.ifr_curcap);
1747 print_bits("options", &ifr.ifr_curcap, 1, IFCAPBITS, nitems(IFCAPBITS));
1748 putchar('\n');
1749 if (ctx->args->supmedia && ifr.ifr_reqcap != 0) {
1750 printf("\tcapabilities=%x", ifr.ifr_reqcap);
1751 print_bits("capabilities", &ifr.ifr_reqcap, 1, IFCAPBITS, nitems(IFCAPBITS));
1752 putchar('\n');
1753 }
1754 }
1755 }
1756 #endif
1757
1758 void
print_ifstatus(if_ctx * ctx)1759 print_ifstatus(if_ctx *ctx)
1760 {
1761 struct ifstat ifs;
1762
1763 strlcpy(ifs.ifs_name, ctx->ifname, sizeof ifs.ifs_name);
1764 if (ioctl_ctx(ctx, SIOCGIFSTATUS, &ifs) == 0)
1765 printf("%s", ifs.ascii);
1766 }
1767
1768 void
print_metric(if_ctx * ctx)1769 print_metric(if_ctx *ctx)
1770 {
1771 struct ifreq ifr = {};
1772
1773 if (ioctl_ctx_ifr(ctx, SIOCGIFMETRIC, &ifr) != -1)
1774 printf(" metric %d", ifr.ifr_metric);
1775 }
1776
1777 #ifdef WITHOUT_NETLINK
1778 static void
print_mtu(if_ctx * ctx)1779 print_mtu(if_ctx *ctx)
1780 {
1781 struct ifreq ifr = {};
1782
1783 if (ioctl_ctx_ifr(ctx, SIOCGIFMTU, &ifr) != -1)
1784 printf(" mtu %d", ifr.ifr_mtu);
1785 }
1786
1787 static void
print_description(if_ctx * ctx)1788 print_description(if_ctx *ctx)
1789 {
1790 struct ifreq ifr = {};
1791
1792 ifr_set_name(&ifr, ctx->ifname);
1793 for (;;) {
1794 if ((descr = reallocf(descr, descrlen)) != NULL) {
1795 ifr.ifr_buffer.buffer = descr;
1796 ifr.ifr_buffer.length = descrlen;
1797 if (ioctl_ctx(ctx, SIOCGIFDESCR, &ifr) == 0) {
1798 if (ifr.ifr_buffer.buffer == descr) {
1799 if (strlen(descr) > 0)
1800 printf("\tdescription: %s\n",
1801 descr);
1802 } else if (ifr.ifr_buffer.length > descrlen) {
1803 descrlen = ifr.ifr_buffer.length;
1804 continue;
1805 }
1806 }
1807 } else
1808 warn("unable to allocate memory for interface"
1809 "description");
1810 break;
1811 }
1812 }
1813
1814 /*
1815 * Print the status of the interface. If an address family was
1816 * specified, show only it; otherwise, show them all.
1817 */
1818 static void
status(if_ctx * ctx,const struct sockaddr_dl * sdl __unused,struct ifaddrs * ifa)1819 status(if_ctx *ctx, const struct sockaddr_dl *sdl __unused, struct ifaddrs *ifa)
1820 {
1821 struct ifaddrs *ift;
1822 int s, old_s;
1823 struct ifconfig_args *args = ctx->args;
1824 bool allfamilies = args->afp == NULL;
1825 struct ifreq ifr = {};
1826
1827 if (args->afp == NULL)
1828 ifr.ifr_addr.sa_family = AF_LOCAL;
1829 else
1830 ifr.ifr_addr.sa_family =
1831 args->afp->af_af == AF_LINK ? AF_LOCAL : args->afp->af_af;
1832
1833 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
1834 if (s < 0)
1835 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
1836 old_s = ctx->io_s;
1837 ctx->io_s = s;
1838
1839 printf("%s: flags=%x", ctx->ifname, ifa->ifa_flags);
1840 print_bits("flags", &ifa->ifa_flags, 1, IFFBITS, nitems(IFFBITS));
1841 print_metric(ctx);
1842 print_mtu(ctx);
1843 putchar('\n');
1844
1845 print_description(ctx);
1846
1847 print_ifcap(ctx);
1848
1849 tunnel_status(ctx);
1850
1851 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
1852 if (ift->ifa_addr == NULL)
1853 continue;
1854 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
1855 continue;
1856 if (allfamilies) {
1857 const struct afswtch *p;
1858 p = af_getbyfamily(ift->ifa_addr->sa_family);
1859 if (p != NULL && p->af_status != NULL)
1860 p->af_status(ctx, ift);
1861 } else if (args->afp->af_af == ift->ifa_addr->sa_family)
1862 args->afp->af_status(ctx, ift);
1863 }
1864 #if 0
1865 if (allfamilies || afp->af_af == AF_LINK) {
1866 const struct afswtch *lafp;
1867
1868 /*
1869 * Hack; the link level address is received separately
1870 * from the routing information so any address is not
1871 * handled above. Cobble together an entry and invoke
1872 * the status method specially.
1873 */
1874 lafp = af_getbyname("lladdr");
1875 if (lafp != NULL) {
1876 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
1877 lafp->af_status(s, &info);
1878 }
1879 }
1880 #endif
1881 if (allfamilies)
1882 af_other_status(ctx);
1883 else if (args->afp->af_other_status != NULL)
1884 args->afp->af_other_status(ctx);
1885
1886 print_ifstatus(ctx);
1887 if (args->verbose > 0)
1888 sfp_status(ctx);
1889
1890 close(s);
1891 ctx->io_s = old_s;
1892 return;
1893 }
1894 #endif
1895
1896 void
tunnel_status(if_ctx * ctx)1897 tunnel_status(if_ctx *ctx)
1898 {
1899 af_all_tunnel_status(ctx);
1900 }
1901
1902 static void
Perrorc(const char * cmd,int error)1903 Perrorc(const char *cmd, int error)
1904 {
1905 switch (errno) {
1906
1907 case ENXIO:
1908 errx(1, "%s: no such interface", cmd);
1909 break;
1910
1911 case EPERM:
1912 errx(1, "%s: permission denied", cmd);
1913 break;
1914
1915 default:
1916 errc(1, error, "%s", cmd);
1917 }
1918 }
1919
1920 void
Perror(const char * cmd)1921 Perror(const char *cmd)
1922 {
1923 Perrorc(cmd, errno);
1924 }
1925
1926 void
print_bits(const char * btype,uint32_t * v,const int v_count,const char ** names,const int n_count)1927 print_bits(const char *btype, uint32_t *v, const int v_count,
1928 const char **names, const int n_count)
1929 {
1930 int num = 0;
1931
1932 for (int i = 0; i < v_count * 32; i++) {
1933 bool is_set = v[i / 32] & (1U << (i % 32));
1934 if (is_set) {
1935 if (num++ == 0)
1936 printf("<");
1937 if (num != 1)
1938 printf(",");
1939 if (i < n_count)
1940 printf("%s", names[i]);
1941 else
1942 printf("%s_%d", btype, i);
1943 }
1944 }
1945 if (num > 0)
1946 printf(">");
1947 }
1948
1949 /*
1950 * Print a value a la the %b format of the kernel's printf
1951 */
1952 void
printb(const char * s,unsigned v,const char * bits)1953 printb(const char *s, unsigned v, const char *bits)
1954 {
1955 int i, any = 0;
1956 char c;
1957
1958 if (bits && *bits == 8)
1959 printf("%s=%o", s, v);
1960 else
1961 printf("%s=%x", s, v);
1962 if (bits) {
1963 bits++;
1964 putchar('<');
1965 while ((i = *bits++) != '\0') {
1966 if (v & (1u << (i-1))) {
1967 if (any)
1968 putchar(',');
1969 any = 1;
1970 for (; (c = *bits) > 32; bits++)
1971 putchar(c);
1972 } else
1973 for (; *bits > 32; bits++)
1974 ;
1975 }
1976 putchar('>');
1977 }
1978 }
1979
1980 void
print_vhid(const struct ifaddrs * ifa)1981 print_vhid(const struct ifaddrs *ifa)
1982 {
1983 struct if_data *ifd;
1984
1985 if (ifa->ifa_data == NULL)
1986 return;
1987
1988 ifd = ifa->ifa_data;
1989 if (ifd->ifi_vhid == 0)
1990 return;
1991
1992 printf(" vhid %d", ifd->ifi_vhid);
1993 }
1994
1995 void
ifmaybeload(struct ifconfig_args * args,const char * name)1996 ifmaybeload(struct ifconfig_args *args, const char *name)
1997 {
1998 #define MOD_PREFIX_LEN 3 /* "if_" */
1999 struct module_stat mstat;
2000 int fileid, modid;
2001 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
2002 const char *cp;
2003 struct module_map_entry *mme;
2004 bool found;
2005
2006 /* loading suppressed by the user */
2007 if (args->noload)
2008 return;
2009
2010 /* trim the interface number off the end */
2011 strlcpy(ifname, name, sizeof(ifname));
2012 dp = ifname + strlen(ifname) - 1;
2013 for (; dp > ifname; dp--) {
2014 if (isdigit(*dp))
2015 *dp = '\0';
2016 else
2017 break;
2018 }
2019
2020 /* Either derive it from the map or guess otherwise */
2021 *ifkind = '\0';
2022 found = false;
2023 for (unsigned i = 0; i < nitems(module_map); ++i) {
2024 mme = &module_map[i];
2025 if (strcmp(mme->ifname, ifname) == 0) {
2026 strlcpy(ifkind, mme->kldname, sizeof(ifkind));
2027 found = true;
2028 break;
2029 }
2030 }
2031
2032 /* We didn't have an alias for it... we'll guess. */
2033 if (!found) {
2034 /* turn interface and unit into module name */
2035 strlcpy(ifkind, "if_", sizeof(ifkind));
2036 strlcat(ifkind, ifname, sizeof(ifkind));
2037 }
2038
2039 /* scan files in kernel */
2040 mstat.version = sizeof(struct module_stat);
2041 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
2042 /* scan modules in file */
2043 for (modid = kldfirstmod(fileid); modid > 0;
2044 modid = modfnext(modid)) {
2045 if (modstat(modid, &mstat) < 0)
2046 continue;
2047 /* strip bus name if present */
2048 if ((cp = strchr(mstat.name, '/')) != NULL) {
2049 cp++;
2050 } else {
2051 cp = mstat.name;
2052 }
2053 /*
2054 * Is it already loaded? Don't compare with ifname if
2055 * we were specifically told which kld to use. Doing
2056 * so could lead to conflicts not trivially solved.
2057 */
2058 if ((!found && strcmp(ifname, cp) == 0) ||
2059 strcmp(ifkind, cp) == 0)
2060 return;
2061 }
2062 }
2063
2064 /*
2065 * Try to load the module. But ignore failures, because ifconfig can't
2066 * infer the names of all drivers (eg mlx4en(4)).
2067 */
2068 (void) kldload(ifkind);
2069 }
2070
2071 static struct cmd basic_cmds[] = {
2072 DEF_CMD("up", IFF_UP, setifflags),
2073 DEF_CMD("down", IFF_UP, clearifflags),
2074 DEF_CMD("arp", IFF_NOARP, clearifflags),
2075 DEF_CMD("-arp", IFF_NOARP, setifflags),
2076 DEF_CMD("debug", IFF_DEBUG, setifflags),
2077 DEF_CMD("-debug", IFF_DEBUG, clearifflags),
2078 DEF_CMD_ARG("description", setifdescr),
2079 DEF_CMD_ARG("descr", setifdescr),
2080 DEF_CMD("-description", 0, unsetifdescr),
2081 DEF_CMD("-descr", 0, unsetifdescr),
2082 DEF_CMD("allmulti", IFF_PALLMULTI, setifflags),
2083 DEF_CMD("-allmulti", IFF_PALLMULTI, clearifflags),
2084 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
2085 DEF_CMD("-promisc", IFF_PPROMISC, clearifflags),
2086 DEF_CMD("add", IFF_UP, notealias),
2087 DEF_CMD("alias", IFF_UP, notealias),
2088 DEF_CMD("-alias", -IFF_UP, notealias),
2089 DEF_CMD("delete", -IFF_UP, notealias),
2090 DEF_CMD("remove", -IFF_UP, notealias),
2091 DEF_CMD_ARG("netmask", setifnetmask),
2092 DEF_CMD_ARG("metric", setifmetric),
2093 DEF_CMD_ARG("broadcast", setifbroadaddr),
2094 DEF_CMD_ARG2("tunnel", settunnel),
2095 DEF_CMD("-tunnel", 0, deletetunnel),
2096 DEF_CMD("deletetunnel", 0, deletetunnel),
2097 #ifdef JAIL
2098 DEF_CMD_ARG("vnet", setifvnet),
2099 DEF_CMD_ARG("-vnet", setifrvnet),
2100 #endif
2101 DEF_CMD("link0", IFF_LINK0, setifflags),
2102 DEF_CMD("-link0", IFF_LINK0, clearifflags),
2103 DEF_CMD("link1", IFF_LINK1, setifflags),
2104 DEF_CMD("-link1", IFF_LINK1, clearifflags),
2105 DEF_CMD("link2", IFF_LINK2, setifflags),
2106 DEF_CMD("-link2", IFF_LINK2, clearifflags),
2107 DEF_CMD("monitor", IFF_MONITOR, setifflags),
2108 DEF_CMD("-monitor", IFF_MONITOR, clearifflags),
2109 DEF_CMD("mextpg", IFCAP_MEXTPG, setifcap),
2110 DEF_CMD("-mextpg", IFCAP_MEXTPG, clearifcap),
2111 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
2112 DEF_CMD("-staticarp", IFF_STATICARP, clearifflags),
2113 DEF_CMD("stickyarp", IFF_STICKYARP, setifflags),
2114 DEF_CMD("-stickyarp", IFF_STICKYARP, clearifflags),
2115 DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap),
2116 DEF_CMD("-rxcsum6", IFCAP_RXCSUM_IPV6, clearifcap),
2117 DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap),
2118 DEF_CMD("-txcsum6", IFCAP_TXCSUM_IPV6, clearifcap),
2119 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
2120 DEF_CMD("-rxcsum", IFCAP_RXCSUM, clearifcap),
2121 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
2122 DEF_CMD("-txcsum", IFCAP_TXCSUM, clearifcap),
2123 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
2124 DEF_CMD("-netcons", IFCAP_NETCONS, clearifcap),
2125 DEF_CMD_ARG("pcp", setifpcp),
2126 DEF_CMD("-pcp", 0, disableifpcp),
2127 DEF_CMD("polling", IFCAP_POLLING, setifcap),
2128 DEF_CMD("-polling", IFCAP_POLLING, clearifcap),
2129 DEF_CMD("tso6", IFCAP_TSO6, setifcap),
2130 DEF_CMD("-tso6", IFCAP_TSO6, clearifcap),
2131 DEF_CMD("tso4", IFCAP_TSO4, setifcap),
2132 DEF_CMD("-tso4", IFCAP_TSO4, clearifcap),
2133 DEF_CMD("tso", IFCAP_TSO, setifcap),
2134 DEF_CMD("-tso", IFCAP_TSO, clearifcap),
2135 DEF_CMD("toe", IFCAP_TOE, setifcap),
2136 DEF_CMD("-toe", IFCAP_TOE, clearifcap),
2137 DEF_CMD("lro", IFCAP_LRO, setifcap),
2138 DEF_CMD("-lro", IFCAP_LRO, clearifcap),
2139 DEF_CMD("txtls", IFCAP_TXTLS, setifcap),
2140 DEF_CMD("-txtls", IFCAP_TXTLS, clearifcap),
2141 DEF_CMD_SARG("rxtls", IFCAP2_RXTLS4_NAME "," IFCAP2_RXTLS6_NAME,
2142 setifcapnv),
2143 DEF_CMD_SARG("-rxtls", "-"IFCAP2_RXTLS4_NAME ",-" IFCAP2_RXTLS6_NAME,
2144 setifcapnv),
2145 DEF_CMD_SARG("ipsec", IFCAP2_IPSEC_OFFLOAD_NAME, setifcapnv),
2146 DEF_CMD_SARG("-ipsec", "-"IFCAP2_IPSEC_OFFLOAD_NAME, setifcapnv),
2147 DEF_CMD("wol", IFCAP_WOL, setifcap),
2148 DEF_CMD("-wol", IFCAP_WOL, clearifcap),
2149 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
2150 DEF_CMD("-wol_ucast", IFCAP_WOL_UCAST, clearifcap),
2151 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
2152 DEF_CMD("-wol_mcast", IFCAP_WOL_MCAST, clearifcap),
2153 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
2154 DEF_CMD("-wol_magic", IFCAP_WOL_MAGIC, clearifcap),
2155 DEF_CMD("txrtlmt", IFCAP_TXRTLMT, setifcap),
2156 DEF_CMD("-txrtlmt", IFCAP_TXRTLMT, clearifcap),
2157 DEF_CMD("txtlsrtlmt", IFCAP_TXTLS_RTLMT, setifcap),
2158 DEF_CMD("-txtlsrtlmt", IFCAP_TXTLS_RTLMT, clearifcap),
2159 DEF_CMD("hwrxtstmp", IFCAP_HWRXTSTMP, setifcap),
2160 DEF_CMD("-hwrxtstmp", IFCAP_HWRXTSTMP, clearifcap),
2161 DEF_CMD("normal", IFF_LINK0, clearifflags),
2162 DEF_CMD("compress", IFF_LINK0, setifflags),
2163 DEF_CMD("noicmp", IFF_LINK1, setifflags),
2164 DEF_CMD_ARG("mtu", setifmtu),
2165 DEF_CMD_ARG("name", setifname),
2166 };
2167
2168 static __constructor void
ifconfig_ctor(void)2169 ifconfig_ctor(void)
2170 {
2171 size_t i;
2172
2173 for (i = 0; i < nitems(basic_cmds); i++)
2174 cmd_register(&basic_cmds[i]);
2175 }
2176