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 #ifndef lint 33 static const char copyright[] = 34 "@(#) Copyright (c) 1983, 1993\n\ 35 The Regents of the University of California. All rights reserved.\n"; 36 #endif /* not lint */ 37 38 #include <sys/param.h> 39 #include <sys/ioctl.h> 40 #ifdef JAIL 41 #include <sys/jail.h> 42 #endif 43 #include <sys/module.h> 44 #include <sys/linker.h> 45 #include <sys/nv.h> 46 #include <sys/queue.h> 47 #include <sys/socket.h> 48 #include <sys/time.h> 49 50 #include <net/ethernet.h> 51 #include <net/if.h> 52 #include <net/if_dl.h> 53 #include <net/if_strings.h> 54 #include <net/if_types.h> 55 #include <net/route.h> 56 57 /* IP */ 58 #include <netinet/in.h> 59 #include <netinet/in_var.h> 60 #include <arpa/inet.h> 61 #include <netdb.h> 62 63 #include <fnmatch.h> 64 #include <ifaddrs.h> 65 #include <ctype.h> 66 #include <err.h> 67 #include <errno.h> 68 #include <fcntl.h> 69 #ifdef JAIL 70 #include <jail.h> 71 #endif 72 #include <stdbool.h> 73 #include <stdio.h> 74 #include <stdlib.h> 75 #include <string.h> 76 #include <unistd.h> 77 78 #include <libifconfig.h> 79 80 #include "ifconfig.h" 81 82 ifconfig_handle_t *lifh; 83 84 #ifdef WITHOUT_NETLINK 85 static char *descr = NULL; 86 static size_t descrlen = 64; 87 #endif 88 static int setaddr; 89 static int setmask; 90 static int doalias; 91 static int clearaddr; 92 static int newaddr = 1; 93 94 int exit_code = 0; 95 96 static char ifname_to_print[IFNAMSIZ]; /* Helper for printifnamemaybe() */ 97 98 /* Formatter Strings */ 99 char *f_inet, *f_inet6, *f_ether, *f_addr; 100 101 #ifdef WITHOUT_NETLINK 102 static void list_interfaces_ioctl(if_ctx *ctx); 103 static void status(if_ctx *ctx, const struct sockaddr_dl *sdl, 104 struct ifaddrs *ifa); 105 #endif 106 static _Noreturn void usage(void); 107 static void Perrorc(const char *cmd, int error); 108 109 static int getifflags(const char *ifname, int us, bool err_ok); 110 111 static struct afswtch *af_getbyname(const char *name); 112 113 static struct option *opts = NULL; 114 115 struct ifa_order_elt { 116 int if_order; 117 int af_orders[255]; 118 struct ifaddrs *ifa; 119 TAILQ_ENTRY(ifa_order_elt) link; 120 }; 121 122 TAILQ_HEAD(ifa_queue, ifa_order_elt); 123 124 static struct module_map_entry { 125 const char *ifname; 126 const char *kldname; 127 } module_map[] = { 128 { 129 .ifname = "tun", 130 .kldname = "if_tuntap", 131 }, 132 { 133 .ifname = "tap", 134 .kldname = "if_tuntap", 135 }, 136 { 137 .ifname = "vmnet", 138 .kldname = "if_tuntap", 139 }, 140 { 141 .ifname = "ipsec", 142 .kldname = "ipsec", 143 }, 144 { 145 /* 146 * This mapping exists because there is a conflicting enc module 147 * in CAM. ifconfig's guessing behavior will attempt to match 148 * the ifname to a module as well as if_${ifname} and clash with 149 * CAM enc. This is an assertion of the correct module to load. 150 */ 151 .ifname = "enc", 152 .kldname = "if_enc", 153 }, 154 }; 155 156 157 void 158 opt_register(struct option *p) 159 { 160 p->next = opts; 161 opts = p; 162 } 163 164 static void 165 usage(void) 166 { 167 char options[1024]; 168 struct option *p; 169 170 /* XXX not right but close enough for now */ 171 options[0] = '\0'; 172 for (p = opts; p != NULL; p = p->next) { 173 strlcat(options, p->opt_usage, sizeof(options)); 174 strlcat(options, " ", sizeof(options)); 175 } 176 177 fprintf(stderr, 178 "usage: ifconfig [-j jail] [-f type:format] %sinterface address_family\n" 179 " [address [dest_address]] [parameters]\n" 180 " ifconfig [-j jail] interface create\n" 181 " ifconfig [-j jail] -a %s[-d] [-m] [-u] [-v] [address_family]\n" 182 " ifconfig [-j jail] -l [-d] [-u] [address_family]\n" 183 " ifconfig [-j jail] %s[-d] [-m] [-u] [-v]\n", 184 options, options, options); 185 exit(1); 186 } 187 188 static void 189 ifname_update(if_ctx *ctx, const char *name) 190 { 191 strlcpy(ctx->_ifname_storage_ioctl, name, sizeof(ctx->_ifname_storage_ioctl)); 192 ctx->ifname = ctx->_ifname_storage_ioctl; 193 194 strlcpy(ifname_to_print, name, sizeof(ifname_to_print)); 195 } 196 197 static void 198 ifr_set_name(struct ifreq *ifr, const char *name) 199 { 200 strlcpy(ifr->ifr_name, name, sizeof(ifr->ifr_name)); 201 } 202 203 int 204 ioctl_ctx_ifr(if_ctx *ctx, unsigned long cmd, struct ifreq *ifr) 205 { 206 ifr_set_name(ifr, ctx->ifname); 207 return (ioctl_ctx(ctx, cmd, ifr)); 208 } 209 210 void 211 ifcreate_ioctl(if_ctx *ctx, struct ifreq *ifr) 212 { 213 char ifname_orig[IFNAMSIZ]; 214 215 strlcpy(ifname_orig, ifr->ifr_name, sizeof(ifname_orig)); 216 217 if (ioctl(ctx->io_s, SIOCIFCREATE2, ifr) < 0) { 218 switch (errno) { 219 case EEXIST: 220 errx(1, "interface %s already exists", ifr->ifr_name); 221 default: 222 err(1, "SIOCIFCREATE2 (%s)", ifr->ifr_name); 223 } 224 } 225 226 if (strncmp(ifname_orig, ifr->ifr_name, sizeof(ifname_orig)) != 0) 227 ifname_update(ctx, ifr->ifr_name); 228 } 229 230 #ifdef WITHOUT_NETLINK 231 static int 232 calcorders(struct ifaddrs *ifa, struct ifa_queue *q) 233 { 234 struct ifaddrs *prev; 235 struct ifa_order_elt *cur; 236 unsigned int ord, af, ifa_ord; 237 238 prev = NULL; 239 cur = NULL; 240 ord = 0; 241 ifa_ord = 0; 242 243 while (ifa != NULL) { 244 if (prev == NULL || 245 strcmp(ifa->ifa_name, prev->ifa_name) != 0) { 246 cur = calloc(1, sizeof(*cur)); 247 248 if (cur == NULL) 249 return (-1); 250 251 TAILQ_INSERT_TAIL(q, cur, link); 252 cur->if_order = ifa_ord ++; 253 cur->ifa = ifa; 254 ord = 0; 255 } 256 257 if (ifa->ifa_addr) { 258 af = ifa->ifa_addr->sa_family; 259 260 if (af < nitems(cur->af_orders) && 261 cur->af_orders[af] == 0) 262 cur->af_orders[af] = ++ord; 263 } 264 prev = ifa; 265 ifa = ifa->ifa_next; 266 } 267 268 return (0); 269 } 270 271 static int 272 cmpifaddrs(struct ifaddrs *a, struct ifaddrs *b, struct ifa_queue *q) 273 { 274 struct ifa_order_elt *cur, *e1, *e2; 275 unsigned int af1, af2; 276 int ret; 277 278 e1 = e2 = NULL; 279 280 ret = strcmp(a->ifa_name, b->ifa_name); 281 if (ret != 0) { 282 TAILQ_FOREACH(cur, q, link) { 283 if (e1 && e2) 284 break; 285 286 if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) 287 e1 = cur; 288 else if (strcmp(cur->ifa->ifa_name, b->ifa_name) == 0) 289 e2 = cur; 290 } 291 292 if (!e1 || !e2) 293 return (0); 294 else 295 return (e1->if_order - e2->if_order); 296 297 } else if (a->ifa_addr != NULL && b->ifa_addr != NULL) { 298 TAILQ_FOREACH(cur, q, link) { 299 if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) { 300 e1 = cur; 301 break; 302 } 303 } 304 305 if (!e1) 306 return (0); 307 308 af1 = a->ifa_addr->sa_family; 309 af2 = b->ifa_addr->sa_family; 310 311 if (af1 < nitems(e1->af_orders) && af2 < nitems(e1->af_orders)) 312 return (e1->af_orders[af1] - e1->af_orders[af2]); 313 } 314 315 return (0); 316 } 317 #endif 318 319 static void freeformat(void) 320 { 321 322 if (f_inet != NULL) 323 free(f_inet); 324 if (f_inet6 != NULL) 325 free(f_inet6); 326 if (f_ether != NULL) 327 free(f_ether); 328 if (f_addr != NULL) 329 free(f_addr); 330 } 331 332 static void setformat(char *input) 333 { 334 char *formatstr, *category, *modifier; 335 336 formatstr = strdup(input); 337 while ((category = strsep(&formatstr, ",")) != NULL) { 338 modifier = strchr(category, ':'); 339 if (modifier == NULL || modifier[1] == '\0') { 340 warnx("Skipping invalid format specification: %s\n", 341 category); 342 continue; 343 } 344 345 /* Split the string on the separator, then seek past it */ 346 modifier[0] = '\0'; 347 modifier++; 348 349 if (strcmp(category, "addr") == 0) 350 f_addr = strdup(modifier); 351 else if (strcmp(category, "ether") == 0) 352 f_ether = strdup(modifier); 353 else if (strcmp(category, "inet") == 0) 354 f_inet = strdup(modifier); 355 else if (strcmp(category, "inet6") == 0) 356 f_inet6 = strdup(modifier); 357 } 358 free(formatstr); 359 } 360 361 #ifdef WITHOUT_NETLINK 362 static struct ifaddrs * 363 sortifaddrs(struct ifaddrs *list, 364 int (*compare)(struct ifaddrs *, struct ifaddrs *, struct ifa_queue *), 365 struct ifa_queue *q) 366 { 367 struct ifaddrs *right, *temp, *last, *result, *next, *tail; 368 369 right = list; 370 temp = list; 371 last = list; 372 result = NULL; 373 next = NULL; 374 tail = NULL; 375 376 if (!list || !list->ifa_next) 377 return (list); 378 379 while (temp && temp->ifa_next) { 380 last = right; 381 right = right->ifa_next; 382 temp = temp->ifa_next->ifa_next; 383 } 384 385 last->ifa_next = NULL; 386 387 list = sortifaddrs(list, compare, q); 388 right = sortifaddrs(right, compare, q); 389 390 while (list || right) { 391 392 if (!right) { 393 next = list; 394 list = list->ifa_next; 395 } else if (!list) { 396 next = right; 397 right = right->ifa_next; 398 } else if (compare(list, right, q) <= 0) { 399 next = list; 400 list = list->ifa_next; 401 } else { 402 next = right; 403 right = right->ifa_next; 404 } 405 406 if (!result) 407 result = next; 408 else 409 tail->ifa_next = next; 410 411 tail = next; 412 } 413 414 return (result); 415 } 416 #endif 417 418 static void 419 printifnamemaybe(void) 420 { 421 if (ifname_to_print[0] != '\0') 422 printf("%s\n", ifname_to_print); 423 } 424 425 static void 426 list_interfaces(if_ctx *ctx) 427 { 428 #ifdef WITHOUT_NETLINK 429 list_interfaces_ioctl(ctx); 430 #else 431 list_interfaces_nl(ctx->args); 432 #endif 433 } 434 435 static char * 436 args_peek(struct ifconfig_args *args) 437 { 438 if (args->argc > 0) 439 return (args->argv[0]); 440 return (NULL); 441 } 442 443 static char * 444 args_pop(struct ifconfig_args *args) 445 { 446 if (args->argc == 0) 447 return (NULL); 448 449 char *arg = args->argv[0]; 450 451 args->argc--; 452 args->argv++; 453 454 return (arg); 455 } 456 457 static void 458 args_parse(struct ifconfig_args *args, int argc, char *argv[]) 459 { 460 char options[1024]; 461 struct option *p; 462 int c; 463 464 /* Parse leading line options */ 465 strlcpy(options, "G:adf:j:klmnuv", sizeof(options)); 466 for (p = opts; p != NULL; p = p->next) 467 strlcat(options, p->opt, sizeof(options)); 468 while ((c = getopt(argc, argv, options)) != -1) { 469 switch (c) { 470 case 'a': /* scan all interfaces */ 471 args->all = true; 472 break; 473 case 'd': /* restrict scan to "down" interfaces */ 474 args->downonly = true; 475 break; 476 case 'f': 477 if (optarg == NULL) 478 usage(); 479 setformat(optarg); 480 break; 481 case 'G': 482 if (optarg == NULL || args->all == 0) 483 usage(); 484 args->nogroup = optarg; 485 break; 486 case 'j': 487 #ifdef JAIL 488 if (optarg == NULL) 489 usage(); 490 args->jail_name = optarg; 491 #else 492 Perror("not built with jail support"); 493 #endif 494 break; 495 case 'k': 496 args->printkeys = true; 497 break; 498 case 'l': /* scan interface names only */ 499 args->namesonly = true; 500 break; 501 case 'm': /* show media choices in status */ 502 args->supmedia = true; 503 break; 504 case 'n': /* suppress module loading */ 505 args->noload = true; 506 break; 507 case 'u': /* restrict scan to "up" interfaces */ 508 args->uponly = true; 509 break; 510 case 'v': 511 args->verbose++; 512 break; 513 case 'g': 514 if (args->all) { 515 if (optarg == NULL) 516 usage(); 517 args->matchgroup = optarg; 518 break; 519 } 520 /* FALLTHROUGH */ 521 default: 522 for (p = opts; p != NULL; p = p->next) 523 if (p->opt[0] == c) { 524 p->cb(optarg); 525 break; 526 } 527 if (p == NULL) 528 usage(); 529 break; 530 } 531 } 532 argc -= optind; 533 argv += optind; 534 535 /* -l cannot be used with -a or -m */ 536 if (args->namesonly && (args->all || args->supmedia)) 537 usage(); 538 539 /* nonsense.. */ 540 if (args->uponly && args->downonly) 541 usage(); 542 543 /* no arguments is equivalent to '-a' */ 544 if (!args->namesonly && argc < 1) 545 args->all = 1; 546 547 /* -a and -l allow an address family arg to limit the output */ 548 if (args->all || args->namesonly) { 549 if (argc > 1) 550 usage(); 551 552 if (argc == 1) { 553 const struct afswtch *afp = af_getbyname(*argv); 554 555 if (afp == NULL) { 556 warnx("Address family '%s' unknown.", *argv); 557 usage(); 558 } 559 if (afp->af_name != NULL) 560 argc--, argv++; 561 /* leave with afp non-zero */ 562 args->afp = afp; 563 } 564 } else { 565 /* not listing, need an argument */ 566 if (argc < 1) 567 usage(); 568 } 569 570 args->argc = argc; 571 args->argv = argv; 572 } 573 574 static int 575 ifconfig(if_ctx *ctx, int iscreate, const struct afswtch *uafp) 576 { 577 #ifdef WITHOUT_NETLINK 578 return (ifconfig_ioctl(ctx, iscreate, uafp)); 579 #else 580 return (ifconfig_nl(ctx, iscreate, uafp)); 581 #endif 582 } 583 584 static bool 585 isargcreate(const char *arg) 586 { 587 if (arg == NULL) 588 return (false); 589 590 if (strcmp(arg, "create") == 0 || strcmp(arg, "plumb") == 0) 591 return (true); 592 593 return (false); 594 } 595 596 static bool 597 isnametoolong(const char *ifname) 598 { 599 return (strlen(ifname) >= IFNAMSIZ); 600 } 601 602 int 603 main(int ac, char *av[]) 604 { 605 char *envformat; 606 int flags; 607 #ifdef JAIL 608 int jid; 609 #endif 610 struct ifconfig_args _args = {}; 611 struct ifconfig_args *args = &_args; 612 613 struct ifconfig_context ctx = { 614 .args = args, 615 .io_s = -1, 616 }; 617 618 f_inet = f_inet6 = f_ether = f_addr = NULL; 619 620 lifh = ifconfig_open(); 621 if (lifh == NULL) 622 err(EXIT_FAILURE, "ifconfig_open"); 623 624 envformat = getenv("IFCONFIG_FORMAT"); 625 if (envformat != NULL) 626 setformat(envformat); 627 628 /* 629 * Ensure we print interface name when expected to, 630 * even if we terminate early due to error. 631 */ 632 atexit(printifnamemaybe); 633 634 args_parse(args, ac, av); 635 636 #ifdef JAIL 637 if (args->jail_name) { 638 jid = jail_getid(args->jail_name); 639 if (jid == -1) 640 Perror("jail not found"); 641 if (jail_attach(jid) != 0) 642 Perror("cannot attach to jail"); 643 } 644 #endif 645 646 if (!args->all && !args->namesonly) { 647 /* not listing, need an argument */ 648 args->ifname = args_pop(args); 649 ctx.ifname = args->ifname; 650 651 /* check and maybe load support for this interface */ 652 ifmaybeload(args, args->ifname); 653 654 char *arg = args_peek(args); 655 if (if_nametoindex(args->ifname) == 0) { 656 /* 657 * NOTE: We must special-case the `create' command 658 * right here as we would otherwise fail when trying 659 * to find the interface. 660 */ 661 if (isargcreate(arg)) { 662 if (isnametoolong(args->ifname)) 663 errx(1, "%s: cloning name too long", 664 args->ifname); 665 ifconfig(&ctx, 1, NULL); 666 exit(exit_code); 667 } 668 #ifdef JAIL 669 /* 670 * NOTE: We have to special-case the `-vnet' command 671 * right here as we would otherwise fail when trying 672 * to find the interface as it lives in another vnet. 673 */ 674 if (arg != NULL && (strcmp(arg, "-vnet") == 0)) { 675 if (isnametoolong(args->ifname)) 676 errx(1, "%s: interface name too long", 677 args->ifname); 678 ifconfig(&ctx, 0, NULL); 679 exit(exit_code); 680 } 681 #endif 682 errx(1, "interface %s does not exist", args->ifname); 683 } else { 684 /* 685 * Do not allow use `create` command as hostname if 686 * address family is not specified. 687 */ 688 if (isargcreate(arg)) { 689 if (args->argc == 1) 690 errx(1, "interface %s already exists", 691 args->ifname); 692 args_pop(args); 693 } 694 } 695 } 696 697 /* Check for address family */ 698 if (args->argc > 0) { 699 args->afp = af_getbyname(args_peek(args)); 700 if (args->afp != NULL) 701 args_pop(args); 702 } 703 704 /* 705 * Check for a requested configuration action on a single interface, 706 * which doesn't require building, sorting, and searching the entire 707 * system address list 708 */ 709 if ((args->argc > 0) && (args->ifname != NULL)) { 710 if (isnametoolong(args->ifname)) 711 warnx("%s: interface name too long, skipping", args->ifname); 712 else { 713 flags = getifflags(args->ifname, -1, false); 714 if (!(((flags & IFF_CANTCONFIG) != 0) || 715 (args->downonly && (flags & IFF_UP) != 0) || 716 (args->uponly && (flags & IFF_UP) == 0))) 717 ifconfig(&ctx, 0, args->afp); 718 } 719 goto done; 720 } 721 722 args->allfamilies = args->afp == NULL; 723 724 list_interfaces(&ctx); 725 726 done: 727 freeformat(); 728 ifconfig_close(lifh); 729 exit(exit_code); 730 } 731 732 bool 733 match_ether(const struct sockaddr_dl *sdl) 734 { 735 switch (sdl->sdl_type) { 736 case IFT_ETHER: 737 case IFT_L2VLAN: 738 case IFT_BRIDGE: 739 if (sdl->sdl_alen == ETHER_ADDR_LEN) 740 return (true); 741 default: 742 return (false); 743 } 744 } 745 746 bool 747 match_if_flags(struct ifconfig_args *args, int if_flags) 748 { 749 if ((if_flags & IFF_CANTCONFIG) != 0) 750 return (false); 751 if (args->downonly && (if_flags & IFF_UP) != 0) 752 return (false); 753 if (args->uponly && (if_flags & IFF_UP) == 0) 754 return (false); 755 return (true); 756 } 757 758 #ifdef WITHOUT_NETLINK 759 static bool 760 match_afp(const struct afswtch *afp, int sa_family, const struct sockaddr_dl *sdl) 761 { 762 if (afp == NULL) 763 return (true); 764 /* special case for "ether" address family */ 765 if (!strcmp(afp->af_name, "ether")) { 766 if (sdl == NULL || !match_ether(sdl)) 767 return (false); 768 return (true); 769 } 770 return (afp->af_af == sa_family); 771 } 772 773 static void 774 list_interfaces_ioctl(if_ctx *ctx) 775 { 776 struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q); 777 struct ifaddrs *ifap, *sifap, *ifa; 778 struct ifa_order_elt *cur, *tmp; 779 char *namecp = NULL; 780 int ifindex; 781 struct ifconfig_args *args = ctx->args; 782 783 if (getifaddrs(&ifap) != 0) 784 err(EXIT_FAILURE, "getifaddrs"); 785 786 char *cp = NULL; 787 788 if (calcorders(ifap, &q) != 0) 789 err(EXIT_FAILURE, "calcorders"); 790 791 sifap = sortifaddrs(ifap, cmpifaddrs, &q); 792 793 TAILQ_FOREACH_SAFE(cur, &q, link, tmp) 794 free(cur); 795 796 ifindex = 0; 797 for (ifa = sifap; ifa; ifa = ifa->ifa_next) { 798 struct ifreq paifr = {}; 799 const struct sockaddr_dl *sdl; 800 801 strlcpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name)); 802 if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) { 803 memcpy(&paifr.ifr_addr, ifa->ifa_addr, 804 ifa->ifa_addr->sa_len); 805 } 806 807 if (args->ifname != NULL && strcmp(args->ifname, ifa->ifa_name) != 0) 808 continue; 809 if (ifa->ifa_addr->sa_family == AF_LINK) 810 sdl = satosdl_c(ifa->ifa_addr); 811 else 812 sdl = NULL; 813 if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !args->namesonly) 814 continue; 815 if (isnametoolong(ifa->ifa_name)) { 816 warnx("%s: interface name too long, skipping", 817 ifa->ifa_name); 818 continue; 819 } 820 cp = ifa->ifa_name; 821 822 if (!match_if_flags(args, ifa->ifa_flags)) 823 continue; 824 if (!group_member(ifa->ifa_name, args->matchgroup, args->nogroup)) 825 continue; 826 ctx->ifname = cp; 827 /* 828 * Are we just listing the interfaces? 829 */ 830 if (args->namesonly) { 831 if (namecp == cp) 832 continue; 833 if (!match_afp(args->afp, ifa->ifa_addr->sa_family, sdl)) 834 continue; 835 namecp = cp; 836 ifindex++; 837 if (ifindex > 1) 838 printf(" "); 839 fputs(cp, stdout); 840 continue; 841 } 842 ifindex++; 843 844 if (args->argc > 0) 845 ifconfig(ctx, 0, args->afp); 846 else 847 status(ctx, sdl, ifa); 848 } 849 if (args->namesonly) 850 printf("\n"); 851 freeifaddrs(ifap); 852 } 853 #endif 854 855 /* 856 * Returns true if an interface should be listed because any its groups 857 * matches shell pattern "match" and none of groups matches pattern "nomatch". 858 * If any pattern is NULL, corresponding condition is skipped. 859 */ 860 bool 861 group_member(const char *ifname, const char *match, const char *nomatch) 862 { 863 static int sock = -1; 864 865 struct ifgroupreq ifgr; 866 struct ifg_req *ifg; 867 unsigned int len; 868 bool matched, nomatched; 869 870 /* Sanity checks. */ 871 if (match == NULL && nomatch == NULL) 872 return (true); 873 if (ifname == NULL) 874 return (false); 875 876 memset(&ifgr, 0, sizeof(ifgr)); 877 strlcpy(ifgr.ifgr_name, ifname, IFNAMSIZ); 878 879 /* The socket is opened once. Let _exit() close it. */ 880 if (sock == -1) { 881 sock = socket(AF_LOCAL, SOCK_DGRAM, 0); 882 if (sock == -1) 883 errx(1, "%s: socket(AF_LOCAL,SOCK_DGRAM)", __func__); 884 } 885 886 /* Determine amount of memory for the list of groups. */ 887 if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) { 888 if (errno == EINVAL || errno == ENOTTY) 889 return (false); 890 else 891 errx(1, "%s: SIOCGIFGROUP", __func__); 892 } 893 894 /* Obtain the list of groups. */ 895 len = ifgr.ifgr_len; 896 ifgr.ifgr_groups = 897 (struct ifg_req *)calloc(len / sizeof(*ifg), sizeof(*ifg)); 898 899 if (ifgr.ifgr_groups == NULL) 900 errx(1, "%s: no memory", __func__); 901 if (ioctl(sock, SIOCGIFGROUP, (caddr_t)&ifgr) == -1) 902 errx(1, "%s: SIOCGIFGROUP", __func__); 903 904 /* Perform matching. */ 905 matched = false; 906 nomatched = true; 907 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(*ifg); ifg++) { 908 len -= sizeof(*ifg); 909 if (match && !matched) 910 matched = !fnmatch(match, ifg->ifgrq_group, 0); 911 if (nomatch && nomatched) 912 nomatched = fnmatch(nomatch, ifg->ifgrq_group, 0); 913 } 914 free(ifgr.ifgr_groups); 915 916 if (match && !nomatch) 917 return (matched); 918 if (!match && nomatch) 919 return (nomatched); 920 return (matched && nomatched); 921 } 922 923 static struct afswtch *afs = NULL; 924 925 void 926 af_register(struct afswtch *p) 927 { 928 p->af_next = afs; 929 afs = p; 930 } 931 932 static struct afswtch * 933 af_getbyname(const char *name) 934 { 935 struct afswtch *afp; 936 937 for (afp = afs; afp != NULL; afp = afp->af_next) 938 if (strcmp(afp->af_name, name) == 0) 939 return afp; 940 return NULL; 941 } 942 943 struct afswtch * 944 af_getbyfamily(int af) 945 { 946 struct afswtch *afp; 947 948 for (afp = afs; afp != NULL; afp = afp->af_next) 949 if (afp->af_af == af) 950 return afp; 951 return NULL; 952 } 953 954 void 955 af_other_status(if_ctx *ctx) 956 { 957 struct afswtch *afp; 958 uint8_t afmask[howmany(AF_MAX, NBBY)]; 959 960 memset(afmask, 0, sizeof(afmask)); 961 for (afp = afs; afp != NULL; afp = afp->af_next) { 962 if (afp->af_other_status == NULL) 963 continue; 964 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af)) 965 continue; 966 afp->af_other_status(ctx); 967 setbit(afmask, afp->af_af); 968 } 969 } 970 971 static void 972 af_all_tunnel_status(if_ctx *ctx) 973 { 974 struct afswtch *afp; 975 uint8_t afmask[howmany(AF_MAX, NBBY)]; 976 977 memset(afmask, 0, sizeof(afmask)); 978 for (afp = afs; afp != NULL; afp = afp->af_next) { 979 if (afp->af_status_tunnel == NULL) 980 continue; 981 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af)) 982 continue; 983 afp->af_status_tunnel(ctx); 984 setbit(afmask, afp->af_af); 985 } 986 } 987 988 static struct cmd *cmds = NULL; 989 990 void 991 cmd_register(struct cmd *p) 992 { 993 p->c_next = cmds; 994 cmds = p; 995 } 996 997 static const struct cmd * 998 cmd_lookup(const char *name, int iscreate) 999 { 1000 const struct cmd *p; 1001 1002 for (p = cmds; p != NULL; p = p->c_next) 1003 if (strcmp(name, p->c_name) == 0) { 1004 if (iscreate) { 1005 if (p->c_iscloneop) 1006 return p; 1007 } else { 1008 if (!p->c_iscloneop) 1009 return p; 1010 } 1011 } 1012 return NULL; 1013 } 1014 1015 struct callback { 1016 callback_func *cb_func; 1017 void *cb_arg; 1018 struct callback *cb_next; 1019 }; 1020 static struct callback *callbacks = NULL; 1021 1022 void 1023 callback_register(callback_func *func, void *arg) 1024 { 1025 struct callback *cb; 1026 1027 cb = malloc(sizeof(struct callback)); 1028 if (cb == NULL) 1029 errx(1, "unable to allocate memory for callback"); 1030 cb->cb_func = func; 1031 cb->cb_arg = arg; 1032 cb->cb_next = callbacks; 1033 callbacks = cb; 1034 } 1035 1036 /* specially-handled commands */ 1037 static void setifaddr(if_ctx *ctx, const char *addr, int param); 1038 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr); 1039 1040 static void setifdstaddr(if_ctx *ctx, const char *addr, int param __unused); 1041 static const struct cmd setifdstaddr_cmd = 1042 DEF_CMD("ifdstaddr", 0, setifdstaddr); 1043 1044 int 1045 af_exec_ioctl(if_ctx *ctx, unsigned long action, void *data) 1046 { 1047 struct ifreq *req = (struct ifreq *)data; 1048 1049 strlcpy(req->ifr_name, ctx->ifname, sizeof(req->ifr_name)); 1050 if (ioctl_ctx(ctx, action, req) == 0) 1051 return (0); 1052 return (errno); 1053 } 1054 1055 static void 1056 delifaddr(if_ctx *ctx, const struct afswtch *afp) 1057 { 1058 int error; 1059 1060 if (afp->af_exec == NULL) { 1061 warnx("interface %s cannot change %s addresses!", 1062 ctx->ifname, afp->af_name); 1063 clearaddr = 0; 1064 return; 1065 } 1066 1067 error = afp->af_exec(ctx, afp->af_difaddr, afp->af_ridreq); 1068 if (error != 0) { 1069 if (error == EADDRNOTAVAIL && (doalias >= 0)) { 1070 /* means no previous address for interface */ 1071 } else 1072 Perrorc("ioctl (SIOCDIFADDR)", error); 1073 } 1074 } 1075 1076 static void 1077 addifaddr(if_ctx *ctx, const struct afswtch *afp) 1078 { 1079 if (afp->af_exec == NULL) { 1080 warnx("interface %s cannot change %s addresses!", 1081 ctx->ifname, afp->af_name); 1082 newaddr = 0; 1083 return; 1084 } 1085 1086 if (setaddr || setmask) { 1087 int error = afp->af_exec(ctx, afp->af_aifaddr, afp->af_addreq); 1088 if (error != 0) 1089 Perrorc("ioctl (SIOCAIFADDR)", error); 1090 } 1091 } 1092 1093 int 1094 ifconfig_ioctl(if_ctx *orig_ctx, int iscreate, const struct afswtch *uafp) 1095 { 1096 const struct afswtch *afp, *nafp; 1097 const struct cmd *p; 1098 struct callback *cb; 1099 int s; 1100 int argc = orig_ctx->args->argc; 1101 char *const *argv = orig_ctx->args->argv; 1102 struct ifconfig_context _ctx = { 1103 .args = orig_ctx->args, 1104 .io_ss = orig_ctx->io_ss, 1105 .ifname = orig_ctx->ifname, 1106 }; 1107 struct ifconfig_context *ctx = &_ctx; 1108 1109 struct ifreq ifr = {}; 1110 strlcpy(ifr.ifr_name, ctx->ifname, sizeof ifr.ifr_name); 1111 afp = NULL; 1112 if (uafp != NULL) 1113 afp = uafp; 1114 /* 1115 * This is the historical "accident" allowing users to configure IPv4 1116 * addresses without the "inet" keyword which while a nice feature has 1117 * proven to complicate other things. We cannot remove this but only 1118 * make sure we will never have a similar implicit default for IPv6 or 1119 * any other address familiy. We need a fallback though for 1120 * ifconfig IF up/down etc. to work without INET support as people 1121 * never used ifconfig IF link up/down, etc. either. 1122 */ 1123 #ifndef RESCUE 1124 #ifdef INET 1125 if (afp == NULL && feature_present("inet")) 1126 afp = af_getbyname("inet"); 1127 #endif 1128 #endif 1129 if (afp == NULL) 1130 afp = af_getbyname("link"); 1131 if (afp == NULL) { 1132 warnx("Please specify an address_family."); 1133 usage(); 1134 } 1135 1136 top: 1137 ifr.ifr_addr.sa_family = 1138 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ? 1139 AF_LOCAL : afp->af_af; 1140 1141 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 && 1142 (uafp != NULL || errno != EAFNOSUPPORT || 1143 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)) 1144 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family); 1145 1146 ctx->io_s = s; 1147 ctx->afp = afp; 1148 1149 while (argc > 0) { 1150 p = cmd_lookup(*argv, iscreate); 1151 if (iscreate && p == NULL) { 1152 /* 1153 * Push the clone create callback so the new 1154 * device is created and can be used for any 1155 * remaining arguments. 1156 */ 1157 cb = callbacks; 1158 if (cb == NULL) 1159 errx(1, "internal error, no callback"); 1160 callbacks = cb->cb_next; 1161 cb->cb_func(ctx, cb->cb_arg); 1162 iscreate = 0; 1163 /* 1164 * Handle any address family spec that 1165 * immediately follows and potentially 1166 * recreate the socket. 1167 */ 1168 nafp = af_getbyname(*argv); 1169 if (nafp != NULL) { 1170 argc--, argv++; 1171 if (nafp != afp) { 1172 close(s); 1173 afp = nafp; 1174 goto top; 1175 } 1176 } 1177 /* 1178 * Look for a normal parameter. 1179 */ 1180 continue; 1181 } 1182 if (p == NULL) { 1183 /* 1184 * Not a recognized command, choose between setting 1185 * the interface address and the dst address. 1186 */ 1187 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd); 1188 } 1189 if (p->c_parameter == NEXTARG && p->c_u.c_func) { 1190 if (argv[1] == NULL) 1191 errx(1, "'%s' requires argument", 1192 p->c_name); 1193 p->c_u.c_func(ctx, argv[1], 0); 1194 argc--, argv++; 1195 } else if (p->c_parameter == OPTARG && p->c_u.c_func) { 1196 p->c_u.c_func(ctx, argv[1], 0); 1197 if (argv[1] != NULL) 1198 argc--, argv++; 1199 } else if (p->c_parameter == NEXTARG2 && p->c_u.c_func2) { 1200 if (argc < 3) 1201 errx(1, "'%s' requires 2 arguments", 1202 p->c_name); 1203 p->c_u.c_func2(ctx, argv[1], argv[2]); 1204 argc -= 2, argv += 2; 1205 } else if (p->c_parameter == SPARAM && p->c_u.c_func3) { 1206 p->c_u.c_func3(ctx, *argv, p->c_sparameter); 1207 } else if (p->c_u.c_func) 1208 p->c_u.c_func(ctx, *argv, p->c_parameter); 1209 argc--, argv++; 1210 } 1211 1212 /* 1213 * Do any post argument processing required by the address family. 1214 */ 1215 if (afp->af_postproc != NULL) 1216 afp->af_postproc(ctx, newaddr, getifflags(ctx->ifname, s, true)); 1217 /* 1218 * Do deferred callbacks registered while processing 1219 * command-line arguments. 1220 */ 1221 for (cb = callbacks; cb != NULL; cb = cb->cb_next) 1222 cb->cb_func(ctx, cb->cb_arg); 1223 /* 1224 * Do deferred operations. 1225 */ 1226 if (clearaddr) 1227 delifaddr(ctx, afp); 1228 if (newaddr) 1229 addifaddr(ctx, afp); 1230 1231 close(s); 1232 return(0); 1233 } 1234 1235 static void 1236 setifaddr(if_ctx *ctx, const char *addr, int param __unused) 1237 { 1238 const struct afswtch *afp = ctx->afp; 1239 1240 if (afp->af_getaddr == NULL) 1241 return; 1242 /* 1243 * Delay the ioctl to set the interface addr until flags are all set. 1244 * The address interpretation may depend on the flags, 1245 * and the flags may change when the address is set. 1246 */ 1247 setaddr++; 1248 if (doalias == 0 && afp->af_af != AF_LINK) 1249 clearaddr = 1; 1250 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR)); 1251 } 1252 1253 static void 1254 settunnel(if_ctx *ctx, const char *src, const char *dst) 1255 { 1256 const struct afswtch *afp = ctx->afp; 1257 struct addrinfo *srcres, *dstres; 1258 int ecode; 1259 1260 if (afp->af_settunnel == NULL) { 1261 warn("address family %s does not support tunnel setup", 1262 afp->af_name); 1263 return; 1264 } 1265 1266 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0) 1267 errx(1, "error in parsing address string: %s", 1268 gai_strerror(ecode)); 1269 1270 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0) 1271 errx(1, "error in parsing address string: %s", 1272 gai_strerror(ecode)); 1273 1274 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family) 1275 errx(1, 1276 "source and destination address families do not match"); 1277 1278 afp->af_settunnel(ctx, srcres, dstres); 1279 1280 freeaddrinfo(srcres); 1281 freeaddrinfo(dstres); 1282 } 1283 1284 static void 1285 deletetunnel(if_ctx *ctx, const char *vname __unused, int param __unused) 1286 { 1287 struct ifreq ifr = {}; 1288 1289 if (ioctl_ctx_ifr(ctx, SIOCDIFPHYADDR, &ifr) < 0) 1290 err(1, "SIOCDIFPHYADDR"); 1291 } 1292 1293 #ifdef JAIL 1294 static void 1295 setifvnet(if_ctx *ctx, const char *jname, int dummy __unused) 1296 { 1297 struct ifreq ifr = {}; 1298 1299 ifr.ifr_jid = jail_getid(jname); 1300 if (ifr.ifr_jid < 0) 1301 errx(1, "%s", jail_errmsg); 1302 if (ioctl_ctx_ifr(ctx, SIOCSIFVNET, &ifr) < 0) 1303 err(1, "SIOCSIFVNET"); 1304 } 1305 1306 static void 1307 setifrvnet(if_ctx *ctx, const char *jname, int dummy __unused) 1308 { 1309 struct ifreq ifr = {}; 1310 1311 ifr.ifr_jid = jail_getid(jname); 1312 if (ifr.ifr_jid < 0) 1313 errx(1, "%s", jail_errmsg); 1314 if (ioctl_ctx_ifr(ctx, SIOCSIFRVNET, &ifr) < 0) 1315 err(1, "SIOCSIFRVNET(%d, %s)", ifr.ifr_jid, ifr.ifr_name); 1316 } 1317 #endif 1318 1319 static void 1320 setifnetmask(if_ctx *ctx, const char *addr, int dummy __unused) 1321 { 1322 const struct afswtch *afp = ctx->afp; 1323 1324 if (afp->af_getaddr != NULL) { 1325 setmask++; 1326 afp->af_getaddr(addr, MASK); 1327 } 1328 } 1329 1330 static void 1331 setifbroadaddr(if_ctx *ctx, const char *addr, int dummy __unused) 1332 { 1333 const struct afswtch *afp = ctx->afp; 1334 1335 if (afp->af_getaddr != NULL) 1336 afp->af_getaddr(addr, BRDADDR); 1337 } 1338 1339 static void 1340 notealias(if_ctx *ctx, const char *addr __unused, int param) 1341 { 1342 const struct afswtch *afp = ctx->afp; 1343 1344 if (setaddr && doalias == 0 && param < 0) { 1345 if (afp->af_copyaddr != NULL) 1346 afp->af_copyaddr(ctx, RIDADDR, ADDR); 1347 } 1348 doalias = param; 1349 if (param < 0) { 1350 clearaddr = 1; 1351 newaddr = 0; 1352 } else 1353 clearaddr = 0; 1354 } 1355 1356 static void 1357 setifdstaddr(if_ctx *ctx, const char *addr, int param __unused) 1358 { 1359 const struct afswtch *afp = ctx->afp; 1360 1361 if (afp->af_getaddr != NULL) 1362 afp->af_getaddr(addr, DSTADDR); 1363 } 1364 1365 static int 1366 getifflags(const char *ifname, int us, bool err_ok) 1367 { 1368 struct ifreq my_ifr; 1369 int s; 1370 1371 memset(&my_ifr, 0, sizeof(my_ifr)); 1372 (void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name)); 1373 if (us < 0) { 1374 if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0) 1375 err(1, "socket(family AF_LOCAL,SOCK_DGRAM"); 1376 } else 1377 s = us; 1378 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) { 1379 if (!err_ok) { 1380 Perror("ioctl (SIOCGIFFLAGS)"); 1381 exit(1); 1382 } 1383 } 1384 if (us < 0) 1385 close(s); 1386 return ((my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16)); 1387 } 1388 1389 /* 1390 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion 1391 * of the ifreq structure, which may confuse other parts of ifconfig. 1392 * Make a private copy so we can avoid that. 1393 */ 1394 static void 1395 clearifflags(if_ctx *ctx, const char *vname, int value) 1396 { 1397 struct ifreq my_ifr; 1398 int flags; 1399 1400 flags = getifflags(ctx->ifname, ctx->io_s, false); 1401 flags &= ~value; 1402 memset(&my_ifr, 0, sizeof(my_ifr)); 1403 strlcpy(my_ifr.ifr_name, ctx->ifname, sizeof(my_ifr.ifr_name)); 1404 my_ifr.ifr_flags = flags & 0xffff; 1405 my_ifr.ifr_flagshigh = flags >> 16; 1406 if (ioctl(ctx->io_s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0) 1407 Perror(vname); 1408 } 1409 1410 static void 1411 setifflags(if_ctx *ctx, const char *vname, int value) 1412 { 1413 struct ifreq my_ifr; 1414 int flags; 1415 1416 flags = getifflags(ctx->ifname, ctx->io_s, false); 1417 flags |= value; 1418 memset(&my_ifr, 0, sizeof(my_ifr)); 1419 strlcpy(my_ifr.ifr_name, ctx->ifname, sizeof(my_ifr.ifr_name)); 1420 my_ifr.ifr_flags = flags & 0xffff; 1421 my_ifr.ifr_flagshigh = flags >> 16; 1422 if (ioctl(ctx->io_s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0) 1423 Perror(vname); 1424 } 1425 1426 void 1427 clearifcap(if_ctx *ctx, const char *vname, int value) 1428 { 1429 struct ifreq ifr = {}; 1430 int flags; 1431 1432 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) { 1433 Perror("ioctl (SIOCGIFCAP)"); 1434 exit(1); 1435 } 1436 flags = ifr.ifr_curcap; 1437 flags &= ~value; 1438 flags &= ifr.ifr_reqcap; 1439 /* Check for no change in capabilities. */ 1440 if (ifr.ifr_curcap == flags) 1441 return; 1442 ifr.ifr_reqcap = flags; 1443 if (ioctl_ctx(ctx, SIOCSIFCAP, &ifr) < 0) 1444 Perror(vname); 1445 } 1446 1447 void 1448 setifcap(if_ctx *ctx, const char *vname, int value) 1449 { 1450 struct ifreq ifr = {}; 1451 int flags; 1452 1453 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) { 1454 Perror("ioctl (SIOCGIFCAP)"); 1455 exit(1); 1456 } 1457 flags = ifr.ifr_curcap; 1458 flags |= value; 1459 flags &= ifr.ifr_reqcap; 1460 /* Check for no change in capabilities. */ 1461 if (ifr.ifr_curcap == flags) 1462 return; 1463 ifr.ifr_reqcap = flags; 1464 if (ioctl_ctx(ctx, SIOCSIFCAP, &ifr) < 0) 1465 Perror(vname); 1466 } 1467 1468 void 1469 setifcapnv(if_ctx *ctx, const char *vname, const char *arg) 1470 { 1471 nvlist_t *nvcap; 1472 void *buf; 1473 char *marg, *mopt; 1474 size_t nvbuflen; 1475 bool neg; 1476 struct ifreq ifr = {}; 1477 1478 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) < 0) 1479 Perror("ioctl (SIOCGIFCAP)"); 1480 if ((ifr.ifr_curcap & IFCAP_NV) == 0) { 1481 warnx("IFCAP_NV not supported"); 1482 return; /* Not exit() */ 1483 } 1484 1485 marg = strdup(arg); 1486 if (marg == NULL) 1487 Perror("strdup"); 1488 nvcap = nvlist_create(0); 1489 if (nvcap == NULL) 1490 Perror("nvlist_create"); 1491 while ((mopt = strsep(&marg, ",")) != NULL) { 1492 neg = *mopt == '-'; 1493 if (neg) 1494 mopt++; 1495 if (strcmp(mopt, "rxtls") == 0) { 1496 nvlist_add_bool(nvcap, "rxtls4", !neg); 1497 nvlist_add_bool(nvcap, "rxtls6", !neg); 1498 } else { 1499 nvlist_add_bool(nvcap, mopt, !neg); 1500 } 1501 } 1502 buf = nvlist_pack(nvcap, &nvbuflen); 1503 if (buf == NULL) { 1504 errx(1, "nvlist_pack error"); 1505 exit(1); 1506 } 1507 ifr.ifr_cap_nv.buf_length = ifr.ifr_cap_nv.length = nvbuflen; 1508 ifr.ifr_cap_nv.buffer = buf; 1509 if (ioctl_ctx(ctx, SIOCSIFCAPNV, (caddr_t)&ifr) < 0) 1510 Perror(vname); 1511 free(buf); 1512 nvlist_destroy(nvcap); 1513 free(marg); 1514 } 1515 1516 static void 1517 setifmetric(if_ctx *ctx, const char *val, int dummy __unused) 1518 { 1519 struct ifreq ifr = {}; 1520 1521 ifr.ifr_metric = atoi(val); 1522 if (ioctl_ctx_ifr(ctx, SIOCSIFMETRIC, &ifr) < 0) 1523 err(1, "ioctl SIOCSIFMETRIC (set metric)"); 1524 } 1525 1526 static void 1527 setifmtu(if_ctx *ctx, const char *val, int dummy __unused) 1528 { 1529 struct ifreq ifr = {}; 1530 1531 ifr.ifr_mtu = atoi(val); 1532 if (ioctl_ctx_ifr(ctx, SIOCSIFMTU, &ifr) < 0) 1533 err(1, "ioctl SIOCSIFMTU (set mtu)"); 1534 } 1535 1536 static void 1537 setifpcp(if_ctx *ctx, const char *val, int arg __unused) 1538 { 1539 struct ifreq ifr = {}; 1540 u_long ul; 1541 char *endp; 1542 1543 ul = strtoul(val, &endp, 0); 1544 if (*endp != '\0') 1545 errx(1, "invalid value for pcp"); 1546 if (ul > 7) 1547 errx(1, "value for pcp out of range"); 1548 ifr.ifr_lan_pcp = ul; 1549 if (ioctl_ctx_ifr(ctx, SIOCSLANPCP, &ifr) == -1) 1550 err(1, "SIOCSLANPCP"); 1551 } 1552 1553 static void 1554 disableifpcp(if_ctx *ctx, const char *val __unused, int arg __unused) 1555 { 1556 struct ifreq ifr = {}; 1557 1558 ifr.ifr_lan_pcp = IFNET_PCP_NONE; 1559 if (ioctl_ctx_ifr(ctx, SIOCSLANPCP, &ifr) == -1) 1560 err(1, "SIOCSLANPCP"); 1561 } 1562 1563 static void 1564 setifname(if_ctx *ctx, const char *val, int dummy __unused) 1565 { 1566 struct ifreq ifr = {}; 1567 char *newname; 1568 1569 ifr_set_name(&ifr, ctx->ifname); 1570 newname = strdup(val); 1571 if (newname == NULL) 1572 err(1, "no memory to set ifname"); 1573 ifr.ifr_data = newname; 1574 if (ioctl_ctx(ctx, SIOCSIFNAME, (caddr_t)&ifr) < 0) { 1575 free(newname); 1576 err(1, "ioctl SIOCSIFNAME (set name)"); 1577 } 1578 ifname_update(ctx, newname); 1579 free(newname); 1580 } 1581 1582 static void 1583 setifdescr(if_ctx *ctx, const char *val, int dummy __unused) 1584 { 1585 struct ifreq ifr = {}; 1586 char *newdescr; 1587 1588 ifr.ifr_buffer.length = strlen(val) + 1; 1589 if (ifr.ifr_buffer.length == 1) { 1590 ifr.ifr_buffer.buffer = newdescr = NULL; 1591 ifr.ifr_buffer.length = 0; 1592 } else { 1593 newdescr = strdup(val); 1594 ifr.ifr_buffer.buffer = newdescr; 1595 if (newdescr == NULL) { 1596 warn("no memory to set ifdescr"); 1597 return; 1598 } 1599 } 1600 1601 if (ioctl_ctx_ifr(ctx, SIOCSIFDESCR, &ifr) < 0) 1602 err(1, "ioctl SIOCSIFDESCR (set descr)"); 1603 1604 free(newdescr); 1605 } 1606 1607 static void 1608 unsetifdescr(if_ctx *ctx, const char *val __unused, int value __unused) 1609 { 1610 setifdescr(ctx, "", 0); 1611 } 1612 1613 #ifdef WITHOUT_NETLINK 1614 1615 #define IFFBITS \ 1616 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\7RUNNING" \ 1617 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \ 1618 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP\25STICKYARP" 1619 1620 #define IFCAPBITS \ 1621 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \ 1622 "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \ 1623 "\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \ 1624 "\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT\32HWRXTSTMP\33NOMAP\34TXTLS4\35TXTLS6" \ 1625 "\36VXLAN_HWCSUM\37VXLAN_HWTSO\40TXTLS_RTLMT" 1626 1627 static void 1628 print_ifcap_nv(if_ctx *ctx) 1629 { 1630 struct ifreq ifr = {}; 1631 nvlist_t *nvcap; 1632 const char *nvname; 1633 void *buf, *cookie; 1634 bool first, val; 1635 int type; 1636 1637 buf = malloc(IFR_CAP_NV_MAXBUFSIZE); 1638 if (buf == NULL) 1639 Perror("malloc"); 1640 ifr.ifr_cap_nv.buffer = buf; 1641 ifr.ifr_cap_nv.buf_length = IFR_CAP_NV_MAXBUFSIZE; 1642 if (ioctl_ctx_ifr(ctx, SIOCGIFCAPNV, &ifr) != 0) 1643 Perror("ioctl (SIOCGIFCAPNV)"); 1644 nvcap = nvlist_unpack(ifr.ifr_cap_nv.buffer, 1645 ifr.ifr_cap_nv.length, 0); 1646 if (nvcap == NULL) 1647 Perror("nvlist_unpack"); 1648 printf("\toptions"); 1649 cookie = NULL; 1650 for (first = true;; first = false) { 1651 nvname = nvlist_next(nvcap, &type, &cookie); 1652 if (nvname == NULL) { 1653 printf("\n"); 1654 break; 1655 } 1656 if (type == NV_TYPE_BOOL) { 1657 val = nvlist_get_bool(nvcap, nvname); 1658 if (val) { 1659 printf("%c%s", 1660 first ? ' ' : ',', nvname); 1661 } 1662 } 1663 } 1664 if (ctx->args->supmedia) { 1665 printf("\tcapabilities"); 1666 cookie = NULL; 1667 for (first = true;; first = false) { 1668 nvname = nvlist_next(nvcap, &type, 1669 &cookie); 1670 if (nvname == NULL) { 1671 printf("\n"); 1672 break; 1673 } 1674 if (type == NV_TYPE_BOOL) 1675 printf("%c%s", first ? ' ' : 1676 ',', nvname); 1677 } 1678 } 1679 nvlist_destroy(nvcap); 1680 free(buf); 1681 1682 if (ioctl_ctx(ctx, SIOCGIFCAP, (caddr_t)&ifr) != 0) 1683 Perror("ioctl (SIOCGIFCAP)"); 1684 } 1685 1686 static void 1687 print_ifcap(if_ctx *ctx) 1688 { 1689 struct ifreq ifr = {}; 1690 1691 if (ioctl_ctx_ifr(ctx, SIOCGIFCAP, &ifr) != 0) 1692 return; 1693 1694 if ((ifr.ifr_curcap & IFCAP_NV) != 0) 1695 print_ifcap_nv(ctx); 1696 else { 1697 printb("\toptions", ifr.ifr_curcap, IFCAPBITS); 1698 putchar('\n'); 1699 if (ctx->args->supmedia && ifr.ifr_reqcap != 0) { 1700 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS); 1701 putchar('\n'); 1702 } 1703 } 1704 } 1705 #endif 1706 1707 void 1708 print_ifstatus(if_ctx *ctx) 1709 { 1710 struct ifstat ifs; 1711 1712 strlcpy(ifs.ifs_name, ctx->ifname, sizeof ifs.ifs_name); 1713 if (ioctl_ctx(ctx, SIOCGIFSTATUS, &ifs) == 0) 1714 printf("%s", ifs.ascii); 1715 } 1716 1717 void 1718 print_metric(if_ctx *ctx) 1719 { 1720 struct ifreq ifr = {}; 1721 1722 if (ioctl_ctx_ifr(ctx, SIOCGIFMETRIC, &ifr) != -1) 1723 printf(" metric %d", ifr.ifr_metric); 1724 } 1725 1726 #ifdef WITHOUT_NETLINK 1727 static void 1728 print_mtu(if_ctx *ctx) 1729 { 1730 struct ifreq ifr = {}; 1731 1732 if (ioctl_ctx_ifr(ctx, SIOCGIFMTU, &ifr) != -1) 1733 printf(" mtu %d", ifr.ifr_mtu); 1734 } 1735 1736 static void 1737 print_description(if_ctx *ctx) 1738 { 1739 struct ifreq ifr = {}; 1740 1741 ifr_set_name(&ifr, ctx->ifname); 1742 for (;;) { 1743 if ((descr = reallocf(descr, descrlen)) != NULL) { 1744 ifr.ifr_buffer.buffer = descr; 1745 ifr.ifr_buffer.length = descrlen; 1746 if (ioctl_ctx(ctx, SIOCGIFDESCR, &ifr) == 0) { 1747 if (ifr.ifr_buffer.buffer == descr) { 1748 if (strlen(descr) > 0) 1749 printf("\tdescription: %s\n", 1750 descr); 1751 } else if (ifr.ifr_buffer.length > descrlen) { 1752 descrlen = ifr.ifr_buffer.length; 1753 continue; 1754 } 1755 } 1756 } else 1757 warn("unable to allocate memory for interface" 1758 "description"); 1759 break; 1760 } 1761 } 1762 1763 /* 1764 * Print the status of the interface. If an address family was 1765 * specified, show only it; otherwise, show them all. 1766 */ 1767 static void 1768 status(if_ctx *ctx, const struct sockaddr_dl *sdl __unused, struct ifaddrs *ifa) 1769 { 1770 struct ifaddrs *ift; 1771 int s, old_s; 1772 struct ifconfig_args *args = ctx->args; 1773 bool allfamilies = args->afp == NULL; 1774 struct ifreq ifr = {}; 1775 1776 if (args->afp == NULL) 1777 ifr.ifr_addr.sa_family = AF_LOCAL; 1778 else 1779 ifr.ifr_addr.sa_family = 1780 args->afp->af_af == AF_LINK ? AF_LOCAL : args->afp->af_af; 1781 1782 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0); 1783 if (s < 0) 1784 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family); 1785 old_s = ctx->io_s; 1786 ctx->io_s = s; 1787 1788 printf("%s: ", ctx->ifname); 1789 printb("flags", ifa->ifa_flags, IFFBITS); 1790 print_metric(ctx); 1791 print_mtu(ctx); 1792 putchar('\n'); 1793 1794 print_description(ctx); 1795 1796 print_ifcap(ctx); 1797 1798 tunnel_status(ctx); 1799 1800 for (ift = ifa; ift != NULL; ift = ift->ifa_next) { 1801 if (ift->ifa_addr == NULL) 1802 continue; 1803 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0) 1804 continue; 1805 if (allfamilies) { 1806 const struct afswtch *p; 1807 p = af_getbyfamily(ift->ifa_addr->sa_family); 1808 if (p != NULL && p->af_status != NULL) 1809 p->af_status(ctx, ift); 1810 } else if (args->afp->af_af == ift->ifa_addr->sa_family) 1811 args->afp->af_status(ctx, ift); 1812 } 1813 #if 0 1814 if (allfamilies || afp->af_af == AF_LINK) { 1815 const struct afswtch *lafp; 1816 1817 /* 1818 * Hack; the link level address is received separately 1819 * from the routing information so any address is not 1820 * handled above. Cobble together an entry and invoke 1821 * the status method specially. 1822 */ 1823 lafp = af_getbyname("lladdr"); 1824 if (lafp != NULL) { 1825 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl; 1826 lafp->af_status(s, &info); 1827 } 1828 } 1829 #endif 1830 if (allfamilies) 1831 af_other_status(ctx); 1832 else if (args->afp->af_other_status != NULL) 1833 args->afp->af_other_status(ctx); 1834 1835 print_ifstatus(ctx); 1836 if (args->verbose > 0) 1837 sfp_status(ctx); 1838 1839 close(s); 1840 ctx->io_s = old_s; 1841 return; 1842 } 1843 #endif 1844 1845 void 1846 tunnel_status(if_ctx *ctx) 1847 { 1848 af_all_tunnel_status(ctx); 1849 } 1850 1851 static void 1852 Perrorc(const char *cmd, int error) 1853 { 1854 switch (errno) { 1855 1856 case ENXIO: 1857 errx(1, "%s: no such interface", cmd); 1858 break; 1859 1860 case EPERM: 1861 errx(1, "%s: permission denied", cmd); 1862 break; 1863 1864 default: 1865 errc(1, error, "%s", cmd); 1866 } 1867 } 1868 1869 void 1870 Perror(const char *cmd) 1871 { 1872 Perrorc(cmd, errno); 1873 } 1874 1875 /* 1876 * Print a value a la the %b format of the kernel's printf 1877 */ 1878 void 1879 printb(const char *s, unsigned v, const char *bits) 1880 { 1881 int i, any = 0; 1882 char c; 1883 1884 if (bits && *bits == 8) 1885 printf("%s=%o", s, v); 1886 else 1887 printf("%s=%x", s, v); 1888 if (bits) { 1889 bits++; 1890 putchar('<'); 1891 while ((i = *bits++) != '\0') { 1892 if (v & (1u << (i-1))) { 1893 if (any) 1894 putchar(','); 1895 any = 1; 1896 for (; (c = *bits) > 32; bits++) 1897 putchar(c); 1898 } else 1899 for (; *bits > 32; bits++) 1900 ; 1901 } 1902 putchar('>'); 1903 } 1904 } 1905 1906 void 1907 print_vhid(const struct ifaddrs *ifa) 1908 { 1909 struct if_data *ifd; 1910 1911 if (ifa->ifa_data == NULL) 1912 return; 1913 1914 ifd = ifa->ifa_data; 1915 if (ifd->ifi_vhid == 0) 1916 return; 1917 1918 printf(" vhid %d", ifd->ifi_vhid); 1919 } 1920 1921 void 1922 ifmaybeload(struct ifconfig_args *args, const char *name) 1923 { 1924 #define MOD_PREFIX_LEN 3 /* "if_" */ 1925 struct module_stat mstat; 1926 int fileid, modid; 1927 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp; 1928 const char *cp; 1929 struct module_map_entry *mme; 1930 bool found; 1931 1932 /* loading suppressed by the user */ 1933 if (args->noload) 1934 return; 1935 1936 /* trim the interface number off the end */ 1937 strlcpy(ifname, name, sizeof(ifname)); 1938 dp = ifname + strlen(ifname) - 1; 1939 for (; dp > ifname; dp--) { 1940 if (isdigit(*dp)) 1941 *dp = '\0'; 1942 else 1943 break; 1944 } 1945 1946 /* Either derive it from the map or guess otherwise */ 1947 *ifkind = '\0'; 1948 found = false; 1949 for (unsigned i = 0; i < nitems(module_map); ++i) { 1950 mme = &module_map[i]; 1951 if (strcmp(mme->ifname, ifname) == 0) { 1952 strlcpy(ifkind, mme->kldname, sizeof(ifkind)); 1953 found = true; 1954 break; 1955 } 1956 } 1957 1958 /* We didn't have an alias for it... we'll guess. */ 1959 if (!found) { 1960 /* turn interface and unit into module name */ 1961 strlcpy(ifkind, "if_", sizeof(ifkind)); 1962 strlcat(ifkind, ifname, sizeof(ifkind)); 1963 } 1964 1965 /* scan files in kernel */ 1966 mstat.version = sizeof(struct module_stat); 1967 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) { 1968 /* scan modules in file */ 1969 for (modid = kldfirstmod(fileid); modid > 0; 1970 modid = modfnext(modid)) { 1971 if (modstat(modid, &mstat) < 0) 1972 continue; 1973 /* strip bus name if present */ 1974 if ((cp = strchr(mstat.name, '/')) != NULL) { 1975 cp++; 1976 } else { 1977 cp = mstat.name; 1978 } 1979 /* 1980 * Is it already loaded? Don't compare with ifname if 1981 * we were specifically told which kld to use. Doing 1982 * so could lead to conflicts not trivially solved. 1983 */ 1984 if ((!found && strcmp(ifname, cp) == 0) || 1985 strcmp(ifkind, cp) == 0) 1986 return; 1987 } 1988 } 1989 1990 /* 1991 * Try to load the module. But ignore failures, because ifconfig can't 1992 * infer the names of all drivers (eg mlx4en(4)). 1993 */ 1994 (void) kldload(ifkind); 1995 } 1996 1997 static struct cmd basic_cmds[] = { 1998 DEF_CMD("up", IFF_UP, setifflags), 1999 DEF_CMD("down", IFF_UP, clearifflags), 2000 DEF_CMD("arp", IFF_NOARP, clearifflags), 2001 DEF_CMD("-arp", IFF_NOARP, setifflags), 2002 DEF_CMD("debug", IFF_DEBUG, setifflags), 2003 DEF_CMD("-debug", IFF_DEBUG, clearifflags), 2004 DEF_CMD_ARG("description", setifdescr), 2005 DEF_CMD_ARG("descr", setifdescr), 2006 DEF_CMD("-description", 0, unsetifdescr), 2007 DEF_CMD("-descr", 0, unsetifdescr), 2008 DEF_CMD("promisc", IFF_PPROMISC, setifflags), 2009 DEF_CMD("-promisc", IFF_PPROMISC, clearifflags), 2010 DEF_CMD("add", IFF_UP, notealias), 2011 DEF_CMD("alias", IFF_UP, notealias), 2012 DEF_CMD("-alias", -IFF_UP, notealias), 2013 DEF_CMD("delete", -IFF_UP, notealias), 2014 DEF_CMD("remove", -IFF_UP, notealias), 2015 #ifdef notdef 2016 #define EN_SWABIPS 0x1000 2017 DEF_CMD("swabips", EN_SWABIPS, setifflags), 2018 DEF_CMD("-swabips", EN_SWABIPS, clearifflags), 2019 #endif 2020 DEF_CMD_ARG("netmask", setifnetmask), 2021 DEF_CMD_ARG("metric", setifmetric), 2022 DEF_CMD_ARG("broadcast", setifbroadaddr), 2023 DEF_CMD_ARG2("tunnel", settunnel), 2024 DEF_CMD("-tunnel", 0, deletetunnel), 2025 DEF_CMD("deletetunnel", 0, deletetunnel), 2026 #ifdef JAIL 2027 DEF_CMD_ARG("vnet", setifvnet), 2028 DEF_CMD_ARG("-vnet", setifrvnet), 2029 #endif 2030 DEF_CMD("link0", IFF_LINK0, setifflags), 2031 DEF_CMD("-link0", IFF_LINK0, clearifflags), 2032 DEF_CMD("link1", IFF_LINK1, setifflags), 2033 DEF_CMD("-link1", IFF_LINK1, clearifflags), 2034 DEF_CMD("link2", IFF_LINK2, setifflags), 2035 DEF_CMD("-link2", IFF_LINK2, clearifflags), 2036 DEF_CMD("monitor", IFF_MONITOR, setifflags), 2037 DEF_CMD("-monitor", IFF_MONITOR, clearifflags), 2038 DEF_CMD("mextpg", IFCAP_MEXTPG, setifcap), 2039 DEF_CMD("-mextpg", IFCAP_MEXTPG, clearifcap), 2040 DEF_CMD("staticarp", IFF_STATICARP, setifflags), 2041 DEF_CMD("-staticarp", IFF_STATICARP, clearifflags), 2042 DEF_CMD("stickyarp", IFF_STICKYARP, setifflags), 2043 DEF_CMD("-stickyarp", IFF_STICKYARP, clearifflags), 2044 DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap), 2045 DEF_CMD("-rxcsum6", IFCAP_RXCSUM_IPV6, clearifcap), 2046 DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap), 2047 DEF_CMD("-txcsum6", IFCAP_TXCSUM_IPV6, clearifcap), 2048 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap), 2049 DEF_CMD("-rxcsum", IFCAP_RXCSUM, clearifcap), 2050 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap), 2051 DEF_CMD("-txcsum", IFCAP_TXCSUM, clearifcap), 2052 DEF_CMD("netcons", IFCAP_NETCONS, setifcap), 2053 DEF_CMD("-netcons", IFCAP_NETCONS, clearifcap), 2054 DEF_CMD_ARG("pcp", setifpcp), 2055 DEF_CMD("-pcp", 0, disableifpcp), 2056 DEF_CMD("polling", IFCAP_POLLING, setifcap), 2057 DEF_CMD("-polling", IFCAP_POLLING, clearifcap), 2058 DEF_CMD("tso6", IFCAP_TSO6, setifcap), 2059 DEF_CMD("-tso6", IFCAP_TSO6, clearifcap), 2060 DEF_CMD("tso4", IFCAP_TSO4, setifcap), 2061 DEF_CMD("-tso4", IFCAP_TSO4, clearifcap), 2062 DEF_CMD("tso", IFCAP_TSO, setifcap), 2063 DEF_CMD("-tso", IFCAP_TSO, clearifcap), 2064 DEF_CMD("toe", IFCAP_TOE, setifcap), 2065 DEF_CMD("-toe", IFCAP_TOE, clearifcap), 2066 DEF_CMD("lro", IFCAP_LRO, setifcap), 2067 DEF_CMD("-lro", IFCAP_LRO, clearifcap), 2068 DEF_CMD("txtls", IFCAP_TXTLS, setifcap), 2069 DEF_CMD("-txtls", IFCAP_TXTLS, clearifcap), 2070 DEF_CMD_SARG("rxtls", IFCAP2_RXTLS4_NAME "," IFCAP2_RXTLS6_NAME, 2071 setifcapnv), 2072 DEF_CMD_SARG("-rxtls", "-"IFCAP2_RXTLS4_NAME ",-" IFCAP2_RXTLS6_NAME, 2073 setifcapnv), 2074 DEF_CMD("wol", IFCAP_WOL, setifcap), 2075 DEF_CMD("-wol", IFCAP_WOL, clearifcap), 2076 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap), 2077 DEF_CMD("-wol_ucast", IFCAP_WOL_UCAST, clearifcap), 2078 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap), 2079 DEF_CMD("-wol_mcast", IFCAP_WOL_MCAST, clearifcap), 2080 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap), 2081 DEF_CMD("-wol_magic", IFCAP_WOL_MAGIC, clearifcap), 2082 DEF_CMD("txrtlmt", IFCAP_TXRTLMT, setifcap), 2083 DEF_CMD("-txrtlmt", IFCAP_TXRTLMT, clearifcap), 2084 DEF_CMD("txtlsrtlmt", IFCAP_TXTLS_RTLMT, setifcap), 2085 DEF_CMD("-txtlsrtlmt", IFCAP_TXTLS_RTLMT, clearifcap), 2086 DEF_CMD("hwrxtstmp", IFCAP_HWRXTSTMP, setifcap), 2087 DEF_CMD("-hwrxtstmp", IFCAP_HWRXTSTMP, clearifcap), 2088 DEF_CMD("normal", IFF_LINK0, clearifflags), 2089 DEF_CMD("compress", IFF_LINK0, setifflags), 2090 DEF_CMD("noicmp", IFF_LINK1, setifflags), 2091 DEF_CMD_ARG("mtu", setifmtu), 2092 DEF_CMD_ARG("name", setifname), 2093 }; 2094 2095 static __constructor void 2096 ifconfig_ctor(void) 2097 { 2098 size_t i; 2099 2100 for (i = 0; i < nitems(basic_cmds); i++) 2101 cmd_register(&basic_cmds[i]); 2102 } 2103