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 int c;
467
468 /* Parse leading line options */
469 strlcpy(options, "G:adDf:j:klmnuv", sizeof(options));
470 for (p = opts; p != NULL; p = p->next)
471 strlcat(options, p->opt, sizeof(options));
472 while ((c = getopt(argc, argv, options)) != -1) {
473 switch (c) {
474 case 'a': /* scan all interfaces */
475 args->all = true;
476 break;
477 case 'd': /* restrict scan to "down" interfaces */
478 args->downonly = true;
479 break;
480 case 'D': /* Print driver name */
481 args->drivername = true;
482 break;
483 case 'f':
484 if (optarg == NULL)
485 usage();
486 setformat(optarg);
487 break;
488 case 'G':
489 if (optarg == NULL || args->all == 0)
490 usage();
491 args->nogroup = optarg;
492 break;
493 case 'j':
494 #ifdef JAIL
495 if (optarg == NULL)
496 usage();
497 args->jail_name = optarg;
498 #else
499 Perror("not built with jail support");
500 #endif
501 break;
502 case 'k':
503 args->printkeys = true;
504 break;
505 case 'l': /* scan interface names only */
506 args->namesonly = true;
507 break;
508 case 'm': /* show media choices in status */
509 args->supmedia = true;
510 break;
511 case 'n': /* suppress module loading */
512 args->noload = true;
513 break;
514 case 'u': /* restrict scan to "up" interfaces */
515 args->uponly = true;
516 break;
517 case 'v':
518 args->verbose++;
519 break;
520 case 'g':
521 if (args->all) {
522 if (optarg == NULL)
523 usage();
524 args->matchgroup = optarg;
525 break;
526 }
527 /* FALLTHROUGH */
528 default:
529 for (p = opts; p != NULL; p = p->next)
530 if (p->opt[0] == c) {
531 p->cb(optarg);
532 break;
533 }
534 if (p == NULL)
535 usage();
536 break;
537 }
538 }
539 argc -= optind;
540 argv += optind;
541
542 /* -l cannot be used with -a or -m */
543 if (args->namesonly && (args->all || args->supmedia))
544 usage();
545
546 /* nonsense.. */
547 if (args->uponly && args->downonly)
548 usage();
549
550 /* no arguments is equivalent to '-a' */
551 if (!args->namesonly && argc < 1)
552 args->all = 1;
553
554 /* -a and -l allow an address family arg to limit the output */
555 if (args->all || args->namesonly) {
556 if (argc > 1)
557 usage();
558
559 if (argc == 1) {
560 const struct afswtch *afp = af_getbyname(*argv);
561
562 if (afp == NULL) {
563 warnx("Address family '%s' unknown.", *argv);
564 usage();
565 }
566 if (afp->af_name != NULL)
567 argc--, argv++;
568 /* leave with afp non-zero */
569 args->afp = afp;
570 }
571 } else {
572 /* not listing, need an argument */
573 if (argc < 1)
574 usage();
575 }
576
577 args->argc = argc;
578 args->argv = argv;
579 }
580
581 static int
ifconfig(if_ctx * ctx,int iscreate,const struct afswtch * uafp)582 ifconfig(if_ctx *ctx, int iscreate, const struct afswtch *uafp)
583 {
584 #ifdef WITHOUT_NETLINK
585 return (ifconfig_ioctl(ctx, iscreate, uafp));
586 #else
587 return (ifconfig_nl(ctx, iscreate, uafp));
588 #endif
589 }
590
591 static bool
isargcreate(const char * arg)592 isargcreate(const char *arg)
593 {
594 if (arg == NULL)
595 return (false);
596
597 if (strcmp(arg, "create") == 0 || strcmp(arg, "plumb") == 0)
598 return (true);
599
600 return (false);
601 }
602
603 static bool
isnametoolong(const char * ifname)604 isnametoolong(const char *ifname)
605 {
606 return (strlen(ifname) >= IFNAMSIZ);
607 }
608
609 int
main(int ac,char * av[])610 main(int ac, char *av[])
611 {
612 char *envformat;
613 int flags;
614 #ifdef JAIL
615 int jid;
616 #endif
617 struct ifconfig_args _args = {};
618 struct ifconfig_args *args = &_args;
619
620 struct ifconfig_context ctx = {
621 .args = args,
622 .io_s = -1,
623 };
624
625 lifh = ifconfig_open();
626 if (lifh == NULL)
627 err(EXIT_FAILURE, "ifconfig_open");
628
629 envformat = getenv("IFCONFIG_FORMAT");
630 if (envformat != NULL)
631 setformat(envformat);
632
633 /*
634 * Ensure we print interface name when expected to,
635 * even if we terminate early due to error.
636 */
637 atexit(printifnamemaybe);
638
639 args_parse(args, ac, av);
640
641 #ifdef JAIL
642 if (args->jail_name) {
643 jid = jail_getid(args->jail_name);
644 if (jid == -1)
645 Perror("jail not found");
646 if (jail_attach(jid) != 0)
647 Perror("cannot attach to jail");
648 }
649 #endif
650
651 if (!args->all && !args->namesonly) {
652 /* not listing, need an argument */
653 args->ifname = args_pop(args);
654 ctx.ifname = args->ifname;
655
656 /* check and maybe load support for this interface */
657 ifmaybeload(args, args->ifname);
658
659 char *arg = args_peek(args);
660 if (if_nametoindex(args->ifname) == 0) {
661 /*
662 * NOTE: We must special-case the `create' command
663 * right here as we would otherwise fail when trying
664 * to find the interface.
665 */
666 if (isargcreate(arg)) {
667 if (isnametoolong(args->ifname))
668 errx(1, "%s: cloning name too long",
669 args->ifname);
670 ifconfig(&ctx, 1, NULL);
671 exit(exit_code);
672 }
673 #ifdef JAIL
674 /*
675 * NOTE: We have to special-case the `-vnet' command
676 * right here as we would otherwise fail when trying
677 * to find the interface as it lives in another vnet.
678 */
679 if (arg != NULL && (strcmp(arg, "-vnet") == 0)) {
680 if (isnametoolong(args->ifname))
681 errx(1, "%s: interface name too long",
682 args->ifname);
683 ifconfig(&ctx, 0, NULL);
684 exit(exit_code);
685 }
686 #endif
687 errx(1, "interface %s does not exist", args->ifname);
688 } else {
689 /*
690 * Do not allow use `create` command as hostname if
691 * address family is not specified.
692 */
693 if (isargcreate(arg)) {
694 if (args->argc == 1)
695 errx(1, "interface %s already exists",
696 args->ifname);
697 args_pop(args);
698 }
699 }
700 }
701
702 /* Check for address family */
703 if (args->argc > 0) {
704 args->afp = af_getbyname(args_peek(args));
705 if (args->afp != NULL)
706 args_pop(args);
707 }
708
709 /*
710 * Check for a requested configuration action on a single interface,
711 * which doesn't require building, sorting, and searching the entire
712 * system address list
713 */
714 if ((args->argc > 0) && (args->ifname != NULL)) {
715 if (isnametoolong(args->ifname))
716 warnx("%s: interface name too long, skipping", args->ifname);
717 else {
718 flags = getifflags(args->ifname, -1, false);
719 if (!(((flags & IFF_CANTCONFIG) != 0) ||
720 (args->downonly && (flags & IFF_UP) != 0) ||
721 (args->uponly && (flags & IFF_UP) == 0)))
722 ifconfig(&ctx, 0, args->afp);
723 }
724 goto done;
725 }
726
727 args->allfamilies = args->afp == NULL;
728
729 list_interfaces(&ctx);
730
731 done:
732 freeformat();
733 ifconfig_close(lifh);
734 exit(exit_code);
735 }
736
737 bool
match_ether(const struct sockaddr_dl * sdl)738 match_ether(const struct sockaddr_dl *sdl)
739 {
740 switch (sdl->sdl_type) {
741 case IFT_ETHER:
742 case IFT_L2VLAN:
743 case IFT_BRIDGE:
744 if (sdl->sdl_alen == ETHER_ADDR_LEN)
745 return (true);
746 default:
747 return (false);
748 }
749 }
750
751 bool
match_if_flags(struct ifconfig_args * args,int if_flags)752 match_if_flags(struct ifconfig_args *args, int if_flags)
753 {
754 if ((if_flags & IFF_CANTCONFIG) != 0)
755 return (false);
756 if (args->downonly && (if_flags & IFF_UP) != 0)
757 return (false);
758 if (args->uponly && (if_flags & IFF_UP) == 0)
759 return (false);
760 return (true);
761 }
762
763 #ifdef WITHOUT_NETLINK
764 static bool
match_afp(const struct afswtch * afp,int sa_family,const struct sockaddr_dl * sdl)765 match_afp(const struct afswtch *afp, int sa_family, const struct sockaddr_dl *sdl)
766 {
767 if (afp == NULL)
768 return (true);
769 /* special case for "ether" address family */
770 if (!strcmp(afp->af_name, "ether")) {
771 if (sdl == NULL || !match_ether(sdl))
772 return (false);
773 return (true);
774 }
775 return (afp->af_af == sa_family);
776 }
777
778 static void
list_interfaces_ioctl(if_ctx * ctx)779 list_interfaces_ioctl(if_ctx *ctx)
780 {
781 struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q);
782 struct ifaddrs *ifap, *sifap, *ifa;
783 struct ifa_order_elt *cur, *tmp;
784 char *namecp = NULL;
785 int ifindex;
786 struct ifconfig_args *args = ctx->args;
787
788 if (getifaddrs(&ifap) != 0)
789 err(EXIT_FAILURE, "getifaddrs");
790
791 char *cp = NULL;
792
793 if (calcorders(ifap, &q) != 0)
794 err(EXIT_FAILURE, "calcorders");
795
796 sifap = sortifaddrs(ifap, cmpifaddrs, &q);
797
798 TAILQ_FOREACH_SAFE(cur, &q, link, tmp)
799 free(cur);
800
801 ifindex = 0;
802 for (ifa = sifap; ifa; ifa = ifa->ifa_next) {
803 struct ifreq paifr = {};
804 const struct sockaddr_dl *sdl;
805
806 strlcpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
807 if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
808 memcpy(&paifr.ifr_addr, ifa->ifa_addr,
809 ifa->ifa_addr->sa_len);
810 }
811
812 if (args->ifname != NULL && strcmp(args->ifname, ifa->ifa_name) != 0)
813 continue;
814 if (ifa->ifa_addr->sa_family == AF_LINK)
815 sdl = satosdl_c(ifa->ifa_addr);
816 else
817 sdl = NULL;
818 if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !args->namesonly)
819 continue;
820 if (isnametoolong(ifa->ifa_name)) {
821 warnx("%s: interface name too long, skipping",
822 ifa->ifa_name);
823 continue;
824 }
825 cp = ifa->ifa_name;
826
827 if (!match_if_flags(args, ifa->ifa_flags))
828 continue;
829 if (!group_member(ifa->ifa_name, args->matchgroup, args->nogroup))
830 continue;
831 ctx->ifname = cp;
832 /*
833 * Are we just listing the interfaces?
834 */
835 if (args->namesonly) {
836 if (namecp == cp)
837 continue;
838 if (!match_afp(args->afp, ifa->ifa_addr->sa_family, sdl))
839 continue;
840 namecp = cp;
841 ifindex++;
842 if (ifindex > 1)
843 printf(" ");
844 fputs(cp, stdout);
845 continue;
846 }
847 ifindex++;
848
849 if (args->argc > 0)
850 ifconfig(ctx, 0, args->afp);
851 else
852 status(ctx, sdl, ifa);
853 }
854 if (args->namesonly)
855 printf("\n");
856 freeifaddrs(ifap);
857 }
858 #endif
859
860 /*
861 * Returns true if an interface should be listed because any its groups
862 * matches shell pattern "match" and none of groups matches pattern "nomatch".
863 * If any pattern is NULL, corresponding condition is skipped.
864 */
865 bool
group_member(const char * ifname,const char * match,const char * nomatch)866 group_member(const char *ifname, const char *match, const char *nomatch)
867 {
868 static int sock = -1;
869
870 struct ifgroupreq ifgr;
871 struct ifg_req *ifg;
872 unsigned int len;
873 bool matched, nomatched;
874
875 /* Sanity checks. */
876 if (match == NULL && nomatch == NULL)
877 return (true);
878 if (ifname == NULL)
879 return (false);
880
881 memset(&ifgr, 0, sizeof(ifgr));
882 strlcpy(ifgr.ifgr_name, ifname, IFNAMSIZ);
883
884 /* The socket is opened once. Let _exit() close it. */
885 if (sock == -1) {
886 sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
887 if (sock == -1)
888 errx(1, "%s: socket(AF_LOCAL,SOCK_DGRAM)", __func__);
889 }
890
891 /* Determine amount of memory for the list of groups. */
892 if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) {
893 if (errno == EINVAL || errno == ENOTTY)
894 return (false);
895 else
896 errx(1, "%s: SIOCGIFGROUP", __func__);
897 }
898
899 /* Obtain the list of groups. */
900 len = ifgr.ifgr_len;
901 ifgr.ifgr_groups =
902 (struct ifg_req *)calloc(len / sizeof(*ifg), sizeof(*ifg));
903
904 if (ifgr.ifgr_groups == NULL)
905 errx(1, "%s: no memory", __func__);
906 if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1)
907 errx(1, "%s: SIOCGIFGROUP", __func__);
908
909 /* Perform matching. */
910 matched = false;
911 nomatched = true;
912 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(*ifg); ifg++) {
913 len -= sizeof(*ifg);
914 if (match && !matched)
915 matched = !fnmatch(match, ifg->ifgrq_group, 0);
916 if (nomatch && nomatched)
917 nomatched = fnmatch(nomatch, ifg->ifgrq_group, 0);
918 }
919 free(ifgr.ifgr_groups);
920
921 if (match && !nomatch)
922 return (matched);
923 if (!match && nomatch)
924 return (nomatched);
925 return (matched && nomatched);
926 }
927
928 static struct afswtch *afs = NULL;
929
930 void
af_register(struct afswtch * p)931 af_register(struct afswtch *p)
932 {
933 p->af_next = afs;
934 afs = p;
935 }
936
937 static struct afswtch *
af_getbyname(const char * name)938 af_getbyname(const char *name)
939 {
940 struct afswtch *afp;
941
942 for (afp = afs; afp != NULL; afp = afp->af_next)
943 if (strcmp(afp->af_name, name) == 0)
944 return afp;
945 return NULL;
946 }
947
948 struct afswtch *
af_getbyfamily(int af)949 af_getbyfamily(int af)
950 {
951 struct afswtch *afp;
952
953 for (afp = afs; afp != NULL; afp = afp->af_next)
954 if (afp->af_af == af)
955 return afp;
956 return NULL;
957 }
958
959 void
af_other_status(if_ctx * ctx)960 af_other_status(if_ctx *ctx)
961 {
962 struct afswtch *afp;
963 uint8_t afmask[howmany(AF_MAX, NBBY)];
964
965 memset(afmask, 0, sizeof(afmask));
966 for (afp = afs; afp != NULL; afp = afp->af_next) {
967 if (afp->af_other_status == NULL)
968 continue;
969 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
970 continue;
971 afp->af_other_status(ctx);
972 setbit(afmask, afp->af_af);
973 }
974 }
975
976 static void
af_all_tunnel_status(if_ctx * ctx)977 af_all_tunnel_status(if_ctx *ctx)
978 {
979 struct afswtch *afp;
980 uint8_t afmask[howmany(AF_MAX, NBBY)];
981
982 memset(afmask, 0, sizeof(afmask));
983 for (afp = afs; afp != NULL; afp = afp->af_next) {
984 if (afp->af_status_tunnel == NULL)
985 continue;
986 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
987 continue;
988 afp->af_status_tunnel(ctx);
989 setbit(afmask, afp->af_af);
990 }
991 }
992
993 static struct cmd *cmds = NULL;
994
995 void
cmd_register(struct cmd * p)996 cmd_register(struct cmd *p)
997 {
998 p->c_next = cmds;
999 cmds = p;
1000 }
1001
1002 static const struct cmd *
cmd_lookup(const char * name,int iscreate)1003 cmd_lookup(const char *name, int iscreate)
1004 {
1005 const struct cmd *p;
1006
1007 for (p = cmds; p != NULL; p = p->c_next)
1008 if (strcmp(name, p->c_name) == 0) {
1009 if (iscreate) {
1010 if (p->c_iscloneop)
1011 return p;
1012 } else {
1013 if (!p->c_iscloneop)
1014 return p;
1015 }
1016 }
1017 return NULL;
1018 }
1019
1020 struct callback {
1021 callback_func *cb_func;
1022 void *cb_arg;
1023 struct callback *cb_next;
1024 };
1025 static struct callback *callbacks = NULL;
1026
1027 void
callback_register(callback_func * func,void * arg)1028 callback_register(callback_func *func, void *arg)
1029 {
1030 struct callback *cb;
1031
1032 cb = malloc(sizeof(struct callback));
1033 if (cb == NULL)
1034 errx(1, "unable to allocate memory for callback");
1035 cb->cb_func = func;
1036 cb->cb_arg = arg;
1037 cb->cb_next = callbacks;
1038 callbacks = cb;
1039 }
1040
1041 /* specially-handled commands */
1042 static void setifaddr(if_ctx *ctx, const char *addr, int param);
1043 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
1044
1045 static void setifdstaddr(if_ctx *ctx, const char *addr, int param __unused);
1046 static const struct cmd setifdstaddr_cmd =
1047 DEF_CMD("ifdstaddr", 0, setifdstaddr);
1048
1049 int
af_exec_ioctl(if_ctx * ctx,unsigned long action,void * data)1050 af_exec_ioctl(if_ctx *ctx, unsigned long action, void *data)
1051 {
1052 struct ifreq *req = (struct ifreq *)data;
1053
1054 strlcpy(req->ifr_name, ctx->ifname, sizeof(req->ifr_name));
1055 if (ioctl_ctx(ctx, action, req) == 0)
1056 return (0);
1057 return (errno);
1058 }
1059
1060 static void
delifaddr(if_ctx * ctx,const struct afswtch * afp)1061 delifaddr(if_ctx *ctx, const struct afswtch *afp)
1062 {
1063 int error;
1064
1065 if (afp->af_exec == NULL) {
1066 warnx("interface %s cannot change %s addresses!",
1067 ctx->ifname, afp->af_name);
1068 clearaddr = 0;
1069 return;
1070 }
1071
1072 error = afp->af_exec(ctx, afp->af_difaddr, afp->af_ridreq);
1073 if (error != 0) {
1074 if (error == EADDRNOTAVAIL && (doalias >= 0)) {
1075 /* means no previous address for interface */
1076 } else
1077 Perrorc("ioctl (SIOCDIFADDR)", error);
1078 }
1079 }
1080
1081 static void
addifaddr(if_ctx * ctx,const struct afswtch * afp)1082 addifaddr(if_ctx *ctx, const struct afswtch *afp)
1083 {
1084 if (afp->af_exec == NULL) {
1085 warnx("interface %s cannot change %s addresses!",
1086 ctx->ifname, afp->af_name);
1087 newaddr = 0;
1088 return;
1089 }
1090
1091 if (setaddr || setmask) {
1092 int error = afp->af_exec(ctx, afp->af_aifaddr, afp->af_addreq);
1093 if (error != 0)
1094 Perrorc("ioctl (SIOCAIFADDR)", error);
1095 }
1096 }
1097
1098 int
ifconfig_ioctl(if_ctx * orig_ctx,int iscreate,const struct afswtch * uafp)1099 ifconfig_ioctl(if_ctx *orig_ctx, int iscreate, const struct afswtch *uafp)
1100 {
1101 const struct afswtch *afp, *nafp;
1102 const struct cmd *p;
1103 struct callback *cb;
1104 int s;
1105 int argc = orig_ctx->args->argc;
1106 char *const *argv = orig_ctx->args->argv;
1107 struct ifconfig_context _ctx = {
1108 .args = orig_ctx->args,
1109 .io_ss = orig_ctx->io_ss,
1110 .ifname = orig_ctx->ifname,
1111 };
1112 struct ifconfig_context *ctx = &_ctx;
1113
1114 struct ifreq ifr = {};
1115 strlcpy(ifr.ifr_name, ctx->ifname, sizeof ifr.ifr_name);
1116 afp = NULL;
1117 if (uafp != NULL)
1118 afp = uafp;
1119 /*
1120 * This is the historical "accident" allowing users to configure IPv4
1121 * addresses without the "inet" keyword which while a nice feature has
1122 * proven to complicate other things. We cannot remove this but only
1123 * make sure we will never have a similar implicit default for IPv6 or
1124 * any other address familiy. We need a fallback though for
1125 * ifconfig IF up/down etc. to work without INET support as people
1126 * never used ifconfig IF link up/down, etc. either.
1127 */
1128 #ifndef RESCUE
1129 #ifdef INET
1130 if (afp == NULL && feature_present("inet"))
1131 afp = af_getbyname("inet");
1132 #endif
1133 #endif
1134 if (afp == NULL)
1135 afp = af_getbyname("link");
1136 if (afp == NULL) {
1137 warnx("Please specify an address_family.");
1138 usage();
1139 }
1140
1141 top:
1142 ifr.ifr_addr.sa_family =
1143 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
1144 AF_LOCAL : afp->af_af;
1145
1146 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
1147 (uafp != NULL || errno != EAFNOSUPPORT ||
1148 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
1149 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
1150
1151 ctx->io_s = s;
1152 ctx->afp = afp;
1153
1154 while (argc > 0) {
1155 p = cmd_lookup(*argv, iscreate);
1156 if (iscreate && p == NULL) {
1157 /*
1158 * Push the clone create callback so the new
1159 * device is created and can be used for any
1160 * remaining arguments.
1161 */
1162 cb = callbacks;
1163 if (cb == NULL)
1164 errx(1, "internal error, no callback");
1165 callbacks = cb->cb_next;
1166 cb->cb_func(ctx, cb->cb_arg);
1167 iscreate = 0;
1168 /*
1169 * Handle any address family spec that
1170 * immediately follows and potentially
1171 * recreate the socket.
1172 */
1173 nafp = af_getbyname(*argv);
1174 if (nafp != NULL) {
1175 argc--, argv++;
1176 if (nafp != afp) {
1177 close(s);
1178 afp = nafp;
1179 goto top;
1180 }
1181 }
1182 /*
1183 * Look for a normal parameter.
1184 */
1185 continue;
1186 }
1187 if (p == NULL) {
1188 /*
1189 * Not a recognized command, choose between setting
1190 * the interface address and the dst address.
1191 */
1192 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
1193 }
1194 if (p->c_parameter == NEXTARG && p->c_u.c_func) {
1195 if (argv[1] == NULL)
1196 errx(1, "'%s' requires argument",
1197 p->c_name);
1198 p->c_u.c_func(ctx, argv[1], 0);
1199 argc--, argv++;
1200 } else if (p->c_parameter == OPTARG && p->c_u.c_func) {
1201 p->c_u.c_func(ctx, argv[1], 0);
1202 if (argv[1] != NULL)
1203 argc--, argv++;
1204 } else if (p->c_parameter == NEXTARG2 && p->c_u.c_func2) {
1205 if (argc < 3)
1206 errx(1, "'%s' requires 2 arguments",
1207 p->c_name);
1208 p->c_u.c_func2(ctx, argv[1], argv[2]);
1209 argc -= 2, argv += 2;
1210 } else if (p->c_parameter == SPARAM && p->c_u.c_func3) {
1211 p->c_u.c_func3(ctx, *argv, p->c_sparameter);
1212 } else if (p->c_u.c_func)
1213 p->c_u.c_func(ctx, *argv, p->c_parameter);
1214 argc--, argv++;
1215 }
1216
1217 /*
1218 * Do any post argument processing required by the address family.
1219 */
1220 if (afp->af_postproc != NULL)
1221 afp->af_postproc(ctx, newaddr, getifflags(ctx->ifname, s, true));
1222 /*
1223 * Do deferred callbacks registered while processing
1224 * command-line arguments.
1225 */
1226 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
1227 cb->cb_func(ctx, cb->cb_arg);
1228 /*
1229 * Do deferred operations.
1230 */
1231 if (clearaddr)
1232 delifaddr(ctx, afp);
1233 if (newaddr)
1234 addifaddr(ctx, afp);
1235
1236 close(s);
1237 return(0);
1238 }
1239
1240 static void
setifaddr(if_ctx * ctx,const char * addr,int param __unused)1241 setifaddr(if_ctx *ctx, const char *addr, int param __unused)
1242 {
1243 const struct afswtch *afp = ctx->afp;
1244
1245 if (afp->af_getaddr == NULL)
1246 return;
1247 /*
1248 * Delay the ioctl to set the interface addr until flags are all set.
1249 * The address interpretation may depend on the flags,
1250 * and the flags may change when the address is set.
1251 */
1252 setaddr++;
1253 if (doalias == 0 && afp->af_af != AF_LINK)
1254 clearaddr = 1;
1255 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
1256 }
1257
1258 static void
settunnel(if_ctx * ctx,const char * src,const char * dst)1259 settunnel(if_ctx *ctx, const char *src, const char *dst)
1260 {
1261 const struct afswtch *afp = ctx->afp;
1262 struct addrinfo *srcres, *dstres;
1263 int ecode;
1264
1265 if (afp->af_settunnel == NULL) {
1266 warn("address family %s does not support tunnel setup",
1267 afp->af_name);
1268 return;
1269 }
1270
1271 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
1272 errx(1, "error in parsing address string: %s",
1273 gai_strerror(ecode));
1274
1275 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
1276 errx(1, "error in parsing address string: %s",
1277 gai_strerror(ecode));
1278
1279 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
1280 errx(1,
1281 "source and destination address families do not match");
1282
1283 afp->af_settunnel(ctx, srcres, dstres);
1284
1285 freeaddrinfo(srcres);
1286 freeaddrinfo(dstres);
1287 }
1288
1289 static void
deletetunnel(if_ctx * ctx,const char * vname __unused,int param __unused)1290 deletetunnel(if_ctx *ctx, const char *vname __unused, int param __unused)
1291 {
1292 struct ifreq ifr = {};
1293
1294 if (ioctl_ctx_ifr(ctx, SIOCDIFPHYADDR, &ifr) < 0)
1295 err(1, "SIOCDIFPHYADDR");
1296 }
1297
1298 #ifdef JAIL
1299 static void
setifvnet(if_ctx * ctx,const char * jname,int dummy __unused)1300 setifvnet(if_ctx *ctx, const char *jname, int dummy __unused)
1301 {
1302 struct ifreq ifr = {};
1303
1304 ifr.ifr_jid = jail_getid(jname);
1305 if (ifr.ifr_jid < 0)
1306 errx(1, "%s", jail_errmsg);
1307 if (ioctl_ctx_ifr(ctx, SIOCSIFVNET, &ifr) < 0)
1308 err(1, "SIOCSIFVNET");
1309 }
1310
1311 static void
setifrvnet(if_ctx * ctx,const char * jname,int dummy __unused)1312 setifrvnet(if_ctx *ctx, const char *jname, int dummy __unused)
1313 {
1314 struct ifreq ifr = {};
1315
1316 ifr.ifr_jid = jail_getid(jname);
1317 if (ifr.ifr_jid < 0)
1318 errx(1, "%s", jail_errmsg);
1319 if (ioctl_ctx_ifr(ctx, SIOCSIFRVNET, &ifr) < 0)
1320 err(1, "SIOCSIFRVNET(%d, %s)", ifr.ifr_jid, ifr.ifr_name);
1321 }
1322 #endif
1323
1324 static void
setifnetmask(if_ctx * ctx,const char * addr,int dummy __unused)1325 setifnetmask(if_ctx *ctx, const char *addr, int dummy __unused)
1326 {
1327 const struct afswtch *afp = ctx->afp;
1328
1329 if (afp->af_getaddr != NULL) {
1330 setmask++;
1331 afp->af_getaddr(addr, MASK);
1332 }
1333 }
1334
1335 static void
setifbroadaddr(if_ctx * ctx,const char * addr,int dummy __unused)1336 setifbroadaddr(if_ctx *ctx, const char *addr, int dummy __unused)
1337 {
1338 const struct afswtch *afp = ctx->afp;
1339
1340 if (afp->af_getaddr != NULL)
1341 afp->af_getaddr(addr, BRDADDR);
1342 }
1343
1344 static void
notealias(if_ctx * ctx,const char * addr __unused,int param)1345 notealias(if_ctx *ctx, const char *addr __unused, int param)
1346 {
1347 const struct afswtch *afp = ctx->afp;
1348
1349 if (setaddr && doalias == 0 && param < 0) {
1350 if (afp->af_copyaddr != NULL)
1351 afp->af_copyaddr(ctx, RIDADDR, ADDR);
1352 }
1353 doalias = param;
1354 if (param < 0) {
1355 clearaddr = 1;
1356 newaddr = 0;
1357 } else
1358 clearaddr = 0;
1359 }
1360
1361 static void
setifdstaddr(if_ctx * ctx,const char * addr,int param __unused)1362 setifdstaddr(if_ctx *ctx, const char *addr, int param __unused)
1363 {
1364 const struct afswtch *afp = ctx->afp;
1365
1366 if (afp->af_getaddr != NULL)
1367 afp->af_getaddr(addr, DSTADDR);
1368 }
1369
1370 static int
getifflags(const char * ifname,int us,bool err_ok)1371 getifflags(const char *ifname, int us, bool err_ok)
1372 {
1373 struct ifreq my_ifr;
1374 int s;
1375
1376 memset(&my_ifr, 0, sizeof(my_ifr));
1377 (void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name));
1378 if (us < 0) {
1379 if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)
1380 err(1, "socket(family AF_LOCAL,SOCK_DGRAM");
1381 } else
1382 s = us;
1383 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
1384 if (!err_ok) {
1385 Perror("ioctl (SIOCGIFFLAGS)");
1386 exit(1);
1387 }
1388 }
1389 if (us < 0)
1390 close(s);
1391 return ((my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16));
1392 }
1393
1394 /*
1395 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
1396 * of the ifreq structure, which may confuse other parts of ifconfig.
1397 * Make a private copy so we can avoid that.
1398 */
1399 static void
clearifflags(if_ctx * ctx,const char * vname,int value)1400 clearifflags(if_ctx *ctx, const char *vname, int value)
1401 {
1402 struct ifreq my_ifr;
1403 int flags;
1404
1405 flags = getifflags(ctx->ifname, ctx->io_s, false);
1406 flags &= ~value;
1407 memset(&my_ifr, 0, sizeof(my_ifr));
1408 strlcpy(my_ifr.ifr_name, ctx->ifname, sizeof(my_ifr.ifr_name));
1409 my_ifr.ifr_flags = flags & 0xffff;
1410 my_ifr.ifr_flagshigh = flags >> 16;
1411 if (ioctl(ctx->io_s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
1412 Perror(vname);
1413 }
1414
1415 static void
setifflags(if_ctx * ctx,const char * vname,int value)1416 setifflags(if_ctx *ctx, const char *vname, int value)
1417 {
1418 struct ifreq my_ifr;
1419 int flags;
1420
1421 flags = getifflags(ctx->ifname, ctx->io_s, false);
1422 flags |= value;
1423 memset(&my_ifr, 0, sizeof(my_ifr));
1424 strlcpy(my_ifr.ifr_name, ctx->ifname, sizeof(my_ifr.ifr_name));
1425 my_ifr.ifr_flags = flags & 0xffff;
1426 my_ifr.ifr_flagshigh = flags >> 16;
1427 if (ioctl(ctx->io_s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
1428 Perror(vname);
1429 }
1430
1431 void
clearifcap(if_ctx * ctx,const char * vname,int value)1432 clearifcap(if_ctx *ctx, const char *vname, int value)
1433 {
1434 struct ifreq ifr = {};
1435 int flags;
1436
1437 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) {
1438 Perror("ioctl (SIOCGIFCAP)");
1439 exit(1);
1440 }
1441 flags = ifr.ifr_curcap;
1442 flags &= ~value;
1443 flags &= ifr.ifr_reqcap;
1444 /* Check for no change in capabilities. */
1445 if (ifr.ifr_curcap == flags)
1446 return;
1447 ifr.ifr_reqcap = flags;
1448 if (ioctl_ctx(ctx, SIOCSIFCAP, &ifr) < 0)
1449 Perror(vname);
1450 }
1451
1452 void
setifcap(if_ctx * ctx,const char * vname,int value)1453 setifcap(if_ctx *ctx, const char *vname, int value)
1454 {
1455 struct ifreq ifr = {};
1456 int flags;
1457
1458 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) {
1459 Perror("ioctl (SIOCGIFCAP)");
1460 exit(1);
1461 }
1462 flags = ifr.ifr_curcap;
1463 flags |= value;
1464 flags &= ifr.ifr_reqcap;
1465 /* Check for no change in capabilities. */
1466 if (ifr.ifr_curcap == flags)
1467 return;
1468 ifr.ifr_reqcap = flags;
1469 if (ioctl_ctx(ctx, SIOCSIFCAP, &ifr) < 0)
1470 Perror(vname);
1471 }
1472
1473 void
setifcapnv(if_ctx * ctx,const char * vname,const char * arg)1474 setifcapnv(if_ctx *ctx, const char *vname, const char *arg)
1475 {
1476 nvlist_t *nvcap;
1477 void *buf;
1478 char *marg, *mopt;
1479 size_t nvbuflen;
1480 bool neg;
1481 struct ifreq ifr = {};
1482
1483 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0)
1484 Perror("ioctl (SIOCGIFCAP)");
1485 if ((ifr.ifr_curcap & IFCAP_NV) == 0) {
1486 warnx("IFCAP_NV not supported");
1487 return; /* Not exit() */
1488 }
1489
1490 marg = strdup(arg);
1491 if (marg == NULL)
1492 Perror("strdup");
1493 nvcap = nvlist_create(0);
1494 if (nvcap == NULL)
1495 Perror("nvlist_create");
1496 while ((mopt = strsep(&marg, ",")) != NULL) {
1497 neg = *mopt == '-';
1498 if (neg)
1499 mopt++;
1500 if (strcmp(mopt, "rxtls") == 0) {
1501 nvlist_add_bool(nvcap, "rxtls4", !neg);
1502 nvlist_add_bool(nvcap, "rxtls6", !neg);
1503 } else {
1504 nvlist_add_bool(nvcap, mopt, !neg);
1505 }
1506 }
1507 buf = nvlist_pack(nvcap, &nvbuflen);
1508 if (buf == NULL) {
1509 errx(1, "nvlist_pack error");
1510 exit(1);
1511 }
1512 ifr.ifr_cap_nv.buf_length = ifr.ifr_cap_nv.length = nvbuflen;
1513 ifr.ifr_cap_nv.buffer = buf;
1514 if (ioctl_ctx(ctx, SIOCSIFCAPNV, (caddr_t)&ifr) < 0)
1515 Perror(vname);
1516 free(buf);
1517 nvlist_destroy(nvcap);
1518 free(marg);
1519 }
1520
1521 static void
setifmetric(if_ctx * ctx,const char * val,int dummy __unused)1522 setifmetric(if_ctx *ctx, const char *val, int dummy __unused)
1523 {
1524 struct ifreq ifr = {};
1525
1526 ifr.ifr_metric = atoi(val);
1527 if (ioctl_ctx_ifr(ctx, SIOCSIFMETRIC, &ifr) < 0)
1528 err(1, "ioctl SIOCSIFMETRIC (set metric)");
1529 }
1530
1531 static void
setifmtu(if_ctx * ctx,const char * val,int dummy __unused)1532 setifmtu(if_ctx *ctx, const char *val, int dummy __unused)
1533 {
1534 struct ifreq ifr = {};
1535
1536 ifr.ifr_mtu = atoi(val);
1537 if (ioctl_ctx_ifr(ctx, SIOCSIFMTU, &ifr) < 0)
1538 err(1, "ioctl SIOCSIFMTU (set mtu)");
1539 }
1540
1541 static void
setifpcp(if_ctx * ctx,const char * val,int arg __unused)1542 setifpcp(if_ctx *ctx, const char *val, int arg __unused)
1543 {
1544 struct ifreq ifr = {};
1545 u_long ul;
1546 char *endp;
1547
1548 ul = strtoul(val, &endp, 0);
1549 if (*endp != '\0')
1550 errx(1, "invalid value for pcp");
1551 if (ul > 7)
1552 errx(1, "value for pcp out of range");
1553 ifr.ifr_lan_pcp = ul;
1554 if (ioctl_ctx_ifr(ctx, SIOCSLANPCP, &ifr) == -1)
1555 err(1, "SIOCSLANPCP");
1556 }
1557
1558 static void
disableifpcp(if_ctx * ctx,const char * val __unused,int arg __unused)1559 disableifpcp(if_ctx *ctx, const char *val __unused, int arg __unused)
1560 {
1561 struct ifreq ifr = {};
1562
1563 ifr.ifr_lan_pcp = IFNET_PCP_NONE;
1564 if (ioctl_ctx_ifr(ctx, SIOCSLANPCP, &ifr) == -1)
1565 err(1, "SIOCSLANPCP");
1566 }
1567
1568 static void
setifname(if_ctx * ctx,const char * val,int dummy __unused)1569 setifname(if_ctx *ctx, const char *val, int dummy __unused)
1570 {
1571 struct ifreq ifr = {};
1572 char *newname;
1573
1574 ifr_set_name(&ifr, ctx->ifname);
1575 newname = strdup(val);
1576 if (newname == NULL)
1577 err(1, "no memory to set ifname");
1578 ifr.ifr_data = newname;
1579 if (ioctl_ctx(ctx, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
1580 free(newname);
1581 err(1, "ioctl SIOCSIFNAME (set name)");
1582 }
1583 ifname_update(ctx, newname);
1584 free(newname);
1585 }
1586
1587 static void
setifdescr(if_ctx * ctx,const char * val,int dummy __unused)1588 setifdescr(if_ctx *ctx, const char *val, int dummy __unused)
1589 {
1590 struct ifreq ifr = {};
1591 char *newdescr;
1592
1593 ifr.ifr_buffer.length = strlen(val) + 1;
1594 if (ifr.ifr_buffer.length == 1) {
1595 ifr.ifr_buffer.buffer = newdescr = NULL;
1596 ifr.ifr_buffer.length = 0;
1597 } else {
1598 newdescr = strdup(val);
1599 ifr.ifr_buffer.buffer = newdescr;
1600 if (newdescr == NULL) {
1601 warn("no memory to set ifdescr");
1602 return;
1603 }
1604 }
1605
1606 if (ioctl_ctx_ifr(ctx, SIOCSIFDESCR, &ifr) < 0)
1607 err(1, "ioctl SIOCSIFDESCR (set descr)");
1608
1609 free(newdescr);
1610 }
1611
1612 static void
unsetifdescr(if_ctx * ctx,const char * val __unused,int value __unused)1613 unsetifdescr(if_ctx *ctx, const char *val __unused, int value __unused)
1614 {
1615 setifdescr(ctx, "", 0);
1616 }
1617
1618 #ifdef WITHOUT_NETLINK
1619
1620 static const char *IFFBITS[] = {
1621 [0] = "UP",
1622 [1] = "BROADCAST",
1623 [2] = "DEBUG",
1624 [3] = "LOOPBACK",
1625 [4] = "POINTOPOINT",
1626 [6] = "RUNNING",
1627 [7] = "NOARP",
1628 [8] = "PROMISC",
1629 [9] = "ALLMULTI",
1630 [10] = "OACTIVE",
1631 [11] = "SIMPLEX",
1632 [12] = "LINK0",
1633 [13] = "LINK1",
1634 [14] = "LINK2",
1635 [15] = "MULTICAST",
1636 [17] = "PPROMISC",
1637 [18] = "MONITOR",
1638 [19] = "STATICARP",
1639 [20] = "STICKYARP",
1640 };
1641
1642 static const char *IFCAPBITS[] = {
1643 [0] = "RXCSUM",
1644 [1] = "TXCSUM",
1645 [2] = "NETCONS",
1646 [3] = "VLAN_MTU",
1647 [4] = "VLAN_HWTAGGING",
1648 [5] = "JUMBO_MTU",
1649 [6] = "POLLING",
1650 [7] = "VLAN_HWCSUM",
1651 [8] = "TSO4",
1652 [9] = "TSO6",
1653 [10] = "LRO",
1654 [11] = "WOL_UCAST",
1655 [12] = "WOL_MCAST",
1656 [13] = "WOL_MAGIC",
1657 [14] = "TOE4",
1658 [15] = "TOE6",
1659 [16] = "VLAN_HWFILTER",
1660 [18] = "VLAN_HWTSO",
1661 [19] = "LINKSTATE",
1662 [20] = "NETMAP",
1663 [21] = "RXCSUM_IPV6",
1664 [22] = "TXCSUM_IPV6",
1665 [24] = "TXRTLMT",
1666 [25] = "HWRXTSTMP",
1667 [26] = "NOMAP",
1668 [27] = "TXTLS4",
1669 [28] = "TXTLS6",
1670 [29] = "VXLAN_HWCSUM",
1671 [30] = "VXLAN_HWTSO",
1672 [31] = "TXTLS_RTLMT",
1673 };
1674
1675 static void
print_ifcap_nv(if_ctx * ctx)1676 print_ifcap_nv(if_ctx *ctx)
1677 {
1678 struct ifreq ifr = {};
1679 nvlist_t *nvcap;
1680 const char *nvname;
1681 void *buf, *cookie;
1682 bool first, val;
1683 int type;
1684
1685 buf = malloc(IFR_CAP_NV_MAXBUFSIZE);
1686 if (buf == NULL)
1687 Perror("malloc");
1688 ifr.ifr_cap_nv.buffer = buf;
1689 ifr.ifr_cap_nv.buf_length = IFR_CAP_NV_MAXBUFSIZE;
1690 if (ioctl_ctx_ifr(ctx, SIOCGIFCAPNV, &ifr) != 0)
1691 Perror("ioctl (SIOCGIFCAPNV)");
1692 nvcap = nvlist_unpack(ifr.ifr_cap_nv.buffer,
1693 ifr.ifr_cap_nv.length, 0);
1694 if (nvcap == NULL)
1695 Perror("nvlist_unpack");
1696 printf("\toptions");
1697 cookie = NULL;
1698 for (first = true;; first = false) {
1699 nvname = nvlist_next(nvcap, &type, &cookie);
1700 if (nvname == NULL) {
1701 printf("\n");
1702 break;
1703 }
1704 if (type == NV_TYPE_BOOL) {
1705 val = nvlist_get_bool(nvcap, nvname);
1706 if (val) {
1707 printf("%c%s",
1708 first ? ' ' : ',', nvname);
1709 }
1710 }
1711 }
1712 if (ctx->args->supmedia) {
1713 printf("\tcapabilities");
1714 cookie = NULL;
1715 for (first = true;; first = false) {
1716 nvname = nvlist_next(nvcap, &type,
1717 &cookie);
1718 if (nvname == NULL) {
1719 printf("\n");
1720 break;
1721 }
1722 if (type == NV_TYPE_BOOL)
1723 printf("%c%s", first ? ' ' :
1724 ',', nvname);
1725 }
1726 }
1727 nvlist_destroy(nvcap);
1728 free(buf);
1729
1730 if (ioctl_ctx(ctx, SIOCGIFCAP, (caddr_t)&ifr) != 0)
1731 Perror("ioctl (SIOCGIFCAP)");
1732 }
1733
1734 static void
print_ifcap(if_ctx * ctx)1735 print_ifcap(if_ctx *ctx)
1736 {
1737 struct ifreq ifr = {};
1738
1739 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) != 0)
1740 return;
1741
1742 if ((ifr.ifr_curcap & IFCAP_NV) != 0)
1743 print_ifcap_nv(ctx);
1744 else {
1745 printf("\toptions=%x", ifr.ifr_curcap);
1746 print_bits("options", &ifr.ifr_curcap, 1, IFCAPBITS, nitems(IFCAPBITS));
1747 putchar('\n');
1748 if (ctx->args->supmedia && ifr.ifr_reqcap != 0) {
1749 printf("\tcapabilities=%x", ifr.ifr_reqcap);
1750 print_bits("capabilities", &ifr.ifr_reqcap, 1, IFCAPBITS, nitems(IFCAPBITS));
1751 putchar('\n');
1752 }
1753 }
1754 }
1755 #endif
1756
1757 void
print_ifstatus(if_ctx * ctx)1758 print_ifstatus(if_ctx *ctx)
1759 {
1760 struct ifstat ifs;
1761
1762 strlcpy(ifs.ifs_name, ctx->ifname, sizeof ifs.ifs_name);
1763 if (ioctl_ctx(ctx, SIOCGIFSTATUS, &ifs) == 0)
1764 printf("%s", ifs.ascii);
1765 }
1766
1767 void
print_metric(if_ctx * ctx)1768 print_metric(if_ctx *ctx)
1769 {
1770 struct ifreq ifr = {};
1771
1772 if (ioctl_ctx_ifr(ctx, SIOCGIFMETRIC, &ifr) != -1)
1773 printf(" metric %d", ifr.ifr_metric);
1774 }
1775
1776 #ifdef WITHOUT_NETLINK
1777 static void
print_mtu(if_ctx * ctx)1778 print_mtu(if_ctx *ctx)
1779 {
1780 struct ifreq ifr = {};
1781
1782 if (ioctl_ctx_ifr(ctx, SIOCGIFMTU, &ifr) != -1)
1783 printf(" mtu %d", ifr.ifr_mtu);
1784 }
1785
1786 static void
print_description(if_ctx * ctx)1787 print_description(if_ctx *ctx)
1788 {
1789 struct ifreq ifr = {};
1790
1791 ifr_set_name(&ifr, ctx->ifname);
1792 for (;;) {
1793 if ((descr = reallocf(descr, descrlen)) != NULL) {
1794 ifr.ifr_buffer.buffer = descr;
1795 ifr.ifr_buffer.length = descrlen;
1796 if (ioctl_ctx(ctx, SIOCGIFDESCR, &ifr) == 0) {
1797 if (ifr.ifr_buffer.buffer == descr) {
1798 if (strlen(descr) > 0)
1799 printf("\tdescription: %s\n",
1800 descr);
1801 } else if (ifr.ifr_buffer.length > descrlen) {
1802 descrlen = ifr.ifr_buffer.length;
1803 continue;
1804 }
1805 }
1806 } else
1807 warn("unable to allocate memory for interface"
1808 "description");
1809 break;
1810 }
1811 }
1812
1813 /*
1814 * Print the status of the interface. If an address family was
1815 * specified, show only it; otherwise, show them all.
1816 */
1817 static void
status(if_ctx * ctx,const struct sockaddr_dl * sdl __unused,struct ifaddrs * ifa)1818 status(if_ctx *ctx, const struct sockaddr_dl *sdl __unused, struct ifaddrs *ifa)
1819 {
1820 struct ifaddrs *ift;
1821 int s, old_s;
1822 struct ifconfig_args *args = ctx->args;
1823 bool allfamilies = args->afp == NULL;
1824 struct ifreq ifr = {};
1825
1826 if (args->afp == NULL)
1827 ifr.ifr_addr.sa_family = AF_LOCAL;
1828 else
1829 ifr.ifr_addr.sa_family =
1830 args->afp->af_af == AF_LINK ? AF_LOCAL : args->afp->af_af;
1831
1832 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
1833 if (s < 0)
1834 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
1835 old_s = ctx->io_s;
1836 ctx->io_s = s;
1837
1838 printf("%s: flags=%x", ctx->ifname, ifa->ifa_flags);
1839 print_bits("flags", &ifa->ifa_flags, 1, IFFBITS, nitems(IFFBITS));
1840 print_metric(ctx);
1841 print_mtu(ctx);
1842 putchar('\n');
1843
1844 print_description(ctx);
1845
1846 print_ifcap(ctx);
1847
1848 tunnel_status(ctx);
1849
1850 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
1851 if (ift->ifa_addr == NULL)
1852 continue;
1853 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
1854 continue;
1855 if (allfamilies) {
1856 const struct afswtch *p;
1857 p = af_getbyfamily(ift->ifa_addr->sa_family);
1858 if (p != NULL && p->af_status != NULL)
1859 p->af_status(ctx, ift);
1860 } else if (args->afp->af_af == ift->ifa_addr->sa_family)
1861 args->afp->af_status(ctx, ift);
1862 }
1863 #if 0
1864 if (allfamilies || afp->af_af == AF_LINK) {
1865 const struct afswtch *lafp;
1866
1867 /*
1868 * Hack; the link level address is received separately
1869 * from the routing information so any address is not
1870 * handled above. Cobble together an entry and invoke
1871 * the status method specially.
1872 */
1873 lafp = af_getbyname("lladdr");
1874 if (lafp != NULL) {
1875 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
1876 lafp->af_status(s, &info);
1877 }
1878 }
1879 #endif
1880 if (allfamilies)
1881 af_other_status(ctx);
1882 else if (args->afp->af_other_status != NULL)
1883 args->afp->af_other_status(ctx);
1884
1885 print_ifstatus(ctx);
1886 if (args->verbose > 0)
1887 sfp_status(ctx);
1888
1889 close(s);
1890 ctx->io_s = old_s;
1891 return;
1892 }
1893 #endif
1894
1895 void
tunnel_status(if_ctx * ctx)1896 tunnel_status(if_ctx *ctx)
1897 {
1898 af_all_tunnel_status(ctx);
1899 }
1900
1901 static void
Perrorc(const char * cmd,int error)1902 Perrorc(const char *cmd, int error)
1903 {
1904 switch (errno) {
1905
1906 case ENXIO:
1907 errx(1, "%s: no such interface", cmd);
1908 break;
1909
1910 case EPERM:
1911 errx(1, "%s: permission denied", cmd);
1912 break;
1913
1914 default:
1915 errc(1, error, "%s", cmd);
1916 }
1917 }
1918
1919 void
Perror(const char * cmd)1920 Perror(const char *cmd)
1921 {
1922 Perrorc(cmd, errno);
1923 }
1924
1925 void
print_bits(const char * btype,uint32_t * v,const int v_count,const char ** names,const int n_count)1926 print_bits(const char *btype, uint32_t *v, const int v_count,
1927 const char **names, const int n_count)
1928 {
1929 int num = 0;
1930
1931 for (int i = 0; i < v_count * 32; i++) {
1932 bool is_set = v[i / 32] & (1U << (i % 32));
1933 if (is_set) {
1934 if (num++ == 0)
1935 printf("<");
1936 if (num != 1)
1937 printf(",");
1938 if (i < n_count)
1939 printf("%s", names[i]);
1940 else
1941 printf("%s_%d", btype, i);
1942 }
1943 }
1944 if (num > 0)
1945 printf(">");
1946 }
1947
1948 /*
1949 * Print a value a la the %b format of the kernel's printf
1950 */
1951 void
printb(const char * s,unsigned v,const char * bits)1952 printb(const char *s, unsigned v, const char *bits)
1953 {
1954 int i, any = 0;
1955 char c;
1956
1957 if (bits && *bits == 8)
1958 printf("%s=%o", s, v);
1959 else
1960 printf("%s=%x", s, v);
1961 if (bits) {
1962 bits++;
1963 putchar('<');
1964 while ((i = *bits++) != '\0') {
1965 if (v & (1u << (i-1))) {
1966 if (any)
1967 putchar(',');
1968 any = 1;
1969 for (; (c = *bits) > 32; bits++)
1970 putchar(c);
1971 } else
1972 for (; *bits > 32; bits++)
1973 ;
1974 }
1975 putchar('>');
1976 }
1977 }
1978
1979 void
print_vhid(const struct ifaddrs * ifa)1980 print_vhid(const struct ifaddrs *ifa)
1981 {
1982 struct if_data *ifd;
1983
1984 if (ifa->ifa_data == NULL)
1985 return;
1986
1987 ifd = ifa->ifa_data;
1988 if (ifd->ifi_vhid == 0)
1989 return;
1990
1991 printf(" vhid %d", ifd->ifi_vhid);
1992 }
1993
1994 void
ifmaybeload(struct ifconfig_args * args,const char * name)1995 ifmaybeload(struct ifconfig_args *args, const char *name)
1996 {
1997 #define MOD_PREFIX_LEN 3 /* "if_" */
1998 struct module_stat mstat;
1999 int fileid, modid;
2000 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
2001 const char *cp;
2002 struct module_map_entry *mme;
2003 bool found;
2004
2005 /* loading suppressed by the user */
2006 if (args->noload)
2007 return;
2008
2009 /* trim the interface number off the end */
2010 strlcpy(ifname, name, sizeof(ifname));
2011 dp = ifname + strlen(ifname) - 1;
2012 for (; dp > ifname; dp--) {
2013 if (isdigit(*dp))
2014 *dp = '\0';
2015 else
2016 break;
2017 }
2018
2019 /* Either derive it from the map or guess otherwise */
2020 *ifkind = '\0';
2021 found = false;
2022 for (unsigned i = 0; i < nitems(module_map); ++i) {
2023 mme = &module_map[i];
2024 if (strcmp(mme->ifname, ifname) == 0) {
2025 strlcpy(ifkind, mme->kldname, sizeof(ifkind));
2026 found = true;
2027 break;
2028 }
2029 }
2030
2031 /* We didn't have an alias for it... we'll guess. */
2032 if (!found) {
2033 /* turn interface and unit into module name */
2034 strlcpy(ifkind, "if_", sizeof(ifkind));
2035 strlcat(ifkind, ifname, sizeof(ifkind));
2036 }
2037
2038 /* scan files in kernel */
2039 mstat.version = sizeof(struct module_stat);
2040 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
2041 /* scan modules in file */
2042 for (modid = kldfirstmod(fileid); modid > 0;
2043 modid = modfnext(modid)) {
2044 if (modstat(modid, &mstat) < 0)
2045 continue;
2046 /* strip bus name if present */
2047 if ((cp = strchr(mstat.name, '/')) != NULL) {
2048 cp++;
2049 } else {
2050 cp = mstat.name;
2051 }
2052 /*
2053 * Is it already loaded? Don't compare with ifname if
2054 * we were specifically told which kld to use. Doing
2055 * so could lead to conflicts not trivially solved.
2056 */
2057 if ((!found && strcmp(ifname, cp) == 0) ||
2058 strcmp(ifkind, cp) == 0)
2059 return;
2060 }
2061 }
2062
2063 /*
2064 * Try to load the module. But ignore failures, because ifconfig can't
2065 * infer the names of all drivers (eg mlx4en(4)).
2066 */
2067 (void) kldload(ifkind);
2068 }
2069
2070 static struct cmd basic_cmds[] = {
2071 DEF_CMD("up", IFF_UP, setifflags),
2072 DEF_CMD("down", IFF_UP, clearifflags),
2073 DEF_CMD("arp", IFF_NOARP, clearifflags),
2074 DEF_CMD("-arp", IFF_NOARP, setifflags),
2075 DEF_CMD("debug", IFF_DEBUG, setifflags),
2076 DEF_CMD("-debug", IFF_DEBUG, clearifflags),
2077 DEF_CMD_ARG("description", setifdescr),
2078 DEF_CMD_ARG("descr", setifdescr),
2079 DEF_CMD("-description", 0, unsetifdescr),
2080 DEF_CMD("-descr", 0, unsetifdescr),
2081 DEF_CMD("allmulti", IFF_PALLMULTI, setifflags),
2082 DEF_CMD("-allmulti", IFF_PALLMULTI, clearifflags),
2083 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
2084 DEF_CMD("-promisc", IFF_PPROMISC, clearifflags),
2085 DEF_CMD("add", IFF_UP, notealias),
2086 DEF_CMD("alias", IFF_UP, notealias),
2087 DEF_CMD("-alias", -IFF_UP, notealias),
2088 DEF_CMD("delete", -IFF_UP, notealias),
2089 DEF_CMD("remove", -IFF_UP, notealias),
2090 #ifdef notdef
2091 #define EN_SWABIPS 0x1000
2092 DEF_CMD("swabips", EN_SWABIPS, setifflags),
2093 DEF_CMD("-swabips", EN_SWABIPS, clearifflags),
2094 #endif
2095 DEF_CMD_ARG("netmask", setifnetmask),
2096 DEF_CMD_ARG("metric", setifmetric),
2097 DEF_CMD_ARG("broadcast", setifbroadaddr),
2098 DEF_CMD_ARG2("tunnel", settunnel),
2099 DEF_CMD("-tunnel", 0, deletetunnel),
2100 DEF_CMD("deletetunnel", 0, deletetunnel),
2101 #ifdef JAIL
2102 DEF_CMD_ARG("vnet", setifvnet),
2103 DEF_CMD_ARG("-vnet", setifrvnet),
2104 #endif
2105 DEF_CMD("link0", IFF_LINK0, setifflags),
2106 DEF_CMD("-link0", IFF_LINK0, clearifflags),
2107 DEF_CMD("link1", IFF_LINK1, setifflags),
2108 DEF_CMD("-link1", IFF_LINK1, clearifflags),
2109 DEF_CMD("link2", IFF_LINK2, setifflags),
2110 DEF_CMD("-link2", IFF_LINK2, clearifflags),
2111 DEF_CMD("monitor", IFF_MONITOR, setifflags),
2112 DEF_CMD("-monitor", IFF_MONITOR, clearifflags),
2113 DEF_CMD("mextpg", IFCAP_MEXTPG, setifcap),
2114 DEF_CMD("-mextpg", IFCAP_MEXTPG, clearifcap),
2115 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
2116 DEF_CMD("-staticarp", IFF_STATICARP, clearifflags),
2117 DEF_CMD("stickyarp", IFF_STICKYARP, setifflags),
2118 DEF_CMD("-stickyarp", IFF_STICKYARP, clearifflags),
2119 DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap),
2120 DEF_CMD("-rxcsum6", IFCAP_RXCSUM_IPV6, clearifcap),
2121 DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap),
2122 DEF_CMD("-txcsum6", IFCAP_TXCSUM_IPV6, clearifcap),
2123 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
2124 DEF_CMD("-rxcsum", IFCAP_RXCSUM, clearifcap),
2125 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
2126 DEF_CMD("-txcsum", IFCAP_TXCSUM, clearifcap),
2127 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
2128 DEF_CMD("-netcons", IFCAP_NETCONS, clearifcap),
2129 DEF_CMD_ARG("pcp", setifpcp),
2130 DEF_CMD("-pcp", 0, disableifpcp),
2131 DEF_CMD("polling", IFCAP_POLLING, setifcap),
2132 DEF_CMD("-polling", IFCAP_POLLING, clearifcap),
2133 DEF_CMD("tso6", IFCAP_TSO6, setifcap),
2134 DEF_CMD("-tso6", IFCAP_TSO6, clearifcap),
2135 DEF_CMD("tso4", IFCAP_TSO4, setifcap),
2136 DEF_CMD("-tso4", IFCAP_TSO4, clearifcap),
2137 DEF_CMD("tso", IFCAP_TSO, setifcap),
2138 DEF_CMD("-tso", IFCAP_TSO, clearifcap),
2139 DEF_CMD("toe", IFCAP_TOE, setifcap),
2140 DEF_CMD("-toe", IFCAP_TOE, clearifcap),
2141 DEF_CMD("lro", IFCAP_LRO, setifcap),
2142 DEF_CMD("-lro", IFCAP_LRO, clearifcap),
2143 DEF_CMD("txtls", IFCAP_TXTLS, setifcap),
2144 DEF_CMD("-txtls", IFCAP_TXTLS, clearifcap),
2145 DEF_CMD_SARG("rxtls", IFCAP2_RXTLS4_NAME "," IFCAP2_RXTLS6_NAME,
2146 setifcapnv),
2147 DEF_CMD_SARG("-rxtls", "-"IFCAP2_RXTLS4_NAME ",-" IFCAP2_RXTLS6_NAME,
2148 setifcapnv),
2149 DEF_CMD_SARG("ipsec", IFCAP2_IPSEC_OFFLOAD_NAME, setifcapnv),
2150 DEF_CMD_SARG("-ipsec", "-"IFCAP2_IPSEC_OFFLOAD_NAME, setifcapnv),
2151 DEF_CMD("wol", IFCAP_WOL, setifcap),
2152 DEF_CMD("-wol", IFCAP_WOL, clearifcap),
2153 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
2154 DEF_CMD("-wol_ucast", IFCAP_WOL_UCAST, clearifcap),
2155 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
2156 DEF_CMD("-wol_mcast", IFCAP_WOL_MCAST, clearifcap),
2157 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
2158 DEF_CMD("-wol_magic", IFCAP_WOL_MAGIC, clearifcap),
2159 DEF_CMD("txrtlmt", IFCAP_TXRTLMT, setifcap),
2160 DEF_CMD("-txrtlmt", IFCAP_TXRTLMT, clearifcap),
2161 DEF_CMD("txtlsrtlmt", IFCAP_TXTLS_RTLMT, setifcap),
2162 DEF_CMD("-txtlsrtlmt", IFCAP_TXTLS_RTLMT, clearifcap),
2163 DEF_CMD("hwrxtstmp", IFCAP_HWRXTSTMP, setifcap),
2164 DEF_CMD("-hwrxtstmp", IFCAP_HWRXTSTMP, clearifcap),
2165 DEF_CMD("normal", IFF_LINK0, clearifflags),
2166 DEF_CMD("compress", IFF_LINK0, setifflags),
2167 DEF_CMD("noicmp", IFF_LINK1, setifflags),
2168 DEF_CMD_ARG("mtu", setifmtu),
2169 DEF_CMD_ARG("name", setifname),
2170 };
2171
2172 static __constructor void
ifconfig_ctor(void)2173 ifconfig_ctor(void)
2174 {
2175 size_t i;
2176
2177 for (i = 0; i < nitems(basic_cmds); i++)
2178 cmd_register(&basic_cmds[i]);
2179 }
2180