1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sbin/ifconfig/ifconfig.c,v 1.113.2.4 2006/02/09 10:48:43 yar Exp $ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/ioctl.h> 34 #include <sys/socket.h> 35 #include <sys/sysctl.h> 36 #include <sys/time.h> 37 #include <sys/module.h> 38 #include <sys/linker.h> 39 #include <sys/cdefs.h> 40 #include <sys/queue.h> 41 42 #include <net/ethernet.h> 43 #include <net/if.h> 44 #include <net/if_var.h> 45 #include <net/if_dl.h> 46 #include <net/if_types.h> 47 #include <net/route.h> 48 49 /* IP */ 50 #include <netinet/in.h> 51 #include <netinet/in_var.h> 52 #include <arpa/inet.h> 53 #include <netdb.h> 54 55 #include <ctype.h> 56 #include <err.h> 57 #include <errno.h> 58 #include <fcntl.h> 59 #include <fnmatch.h> 60 #include <ifaddrs.h> 61 #include <stdbool.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 67 #include "ifconfig.h" 68 69 /* Globals */ 70 char IfName[IFNAMSIZ]; /* name of interface */ 71 int newaddr = 1; 72 int verbose; 73 int supmedia = 0; 74 int printkeys = 0; /* Print keying material for interfaces. */ 75 int printifname = 0; /* Print the name of the created interface. */ 76 int exit_code = 0; 77 char *f_inet, *f_inet6, *f_ether, *f_addr; /* Formatter strings */ 78 79 static bool group_member(const char *ifname, const char *match, 80 const char *nomatch); 81 static int ifconfig(int argc, char *const *argv, int iscreate, 82 const struct afswtch *afp); 83 static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl, 84 struct ifaddrs *ifa); 85 static void tunnel_status(int s); 86 static void usage(void) __dead2; 87 88 static int getifflags(const char *ifname, int us); 89 static struct afswtch *af_getbyname(const char *name); 90 static struct afswtch *af_getbyfamily(int af); 91 static void af_other_status(int); 92 static void printifnamemaybe(void); 93 static void freeformat(void); 94 static void setformat(char *input); 95 96 static struct option *opts = NULL; 97 static char *descr = NULL; 98 static size_t descrlen = 64; 99 static int clearaddr; 100 static int doalias; 101 static int noload; 102 static int setaddr; 103 static int setmask; 104 105 struct ifa_order_elt { 106 int if_order; 107 int af_orders[255]; 108 struct ifaddrs *ifa; 109 TAILQ_ENTRY(ifa_order_elt) link; 110 }; 111 TAILQ_HEAD(ifa_queue, ifa_order_elt); 112 113 static int calcorders(struct ifaddrs *ifa, struct ifa_queue *q); 114 static int cmpifaddrs(struct ifaddrs *a, struct ifaddrs *b, 115 struct ifa_queue *q); 116 typedef int (*ifaddrs_cmp)(struct ifaddrs *, struct ifaddrs *, struct ifa_queue *); 117 static struct ifaddrs *sortifaddrs(struct ifaddrs *list, ifaddrs_cmp compare, 118 struct ifa_queue *q); 119 120 121 void 122 opt_register(struct option *p) 123 { 124 p->next = opts; 125 opts = p; 126 } 127 128 static void 129 usage(void) 130 { 131 char options[1024]; 132 struct option *p; 133 134 /* XXX not right but close enough for now */ 135 options[0] = '\0'; 136 for (p = opts; p != NULL; p = p->next) { 137 strlcat(options, p->opt_usage, sizeof(options)); 138 strlcat(options, " ", sizeof(options)); 139 } 140 141 fprintf(stderr, 142 "usage: ifconfig %s[-n] [-f type:format] interface address_family\n" 143 " [address [dest_address]] [parameters]\n" 144 " ifconfig [-n] interface create\n" 145 " ifconfig [-n] interface destroy\n" 146 " ifconfig -a %s[-G nogroup] [-d | -u] [-m] [-v] [address_family]\n" 147 " ifconfig -l [-d | -u] [address_family]\n" 148 " ifconfig %s[-d | -u] [-m] [-v]\n", 149 options, options, options); 150 exit(1); 151 } 152 153 static int 154 calcorders(struct ifaddrs *ifa, struct ifa_queue *q) 155 { 156 struct ifaddrs *prev; 157 struct ifa_order_elt *cur; 158 unsigned int ord, af, ifa_ord; 159 160 prev = NULL; 161 cur = NULL; 162 ord = 0; 163 ifa_ord = 0; 164 165 while (ifa != NULL) { 166 if (prev == NULL || 167 strcmp(ifa->ifa_name, prev->ifa_name) != 0) { 168 cur = calloc(1, sizeof(*cur)); 169 if (cur == NULL) 170 return (-1); 171 172 TAILQ_INSERT_TAIL(q, cur, link); 173 cur->if_order = ifa_ord++; 174 cur->ifa = ifa; 175 ord = 0; 176 } 177 178 if (ifa->ifa_addr) { 179 af = ifa->ifa_addr->sa_family; 180 181 if (af < nitems(cur->af_orders) && 182 cur->af_orders[af] == 0) 183 cur->af_orders[af] = ++ord; 184 } 185 186 prev = ifa; 187 ifa = ifa->ifa_next; 188 } 189 190 return (0); 191 } 192 193 static int 194 cmpifaddrs(struct ifaddrs *a, struct ifaddrs *b, struct ifa_queue *q) 195 { 196 struct ifa_order_elt *cur, *e1, *e2; 197 unsigned int af1, af2; 198 199 e1 = e2 = NULL; 200 201 if (strcmp(a->ifa_name, b->ifa_name) != 0) { 202 TAILQ_FOREACH(cur, q, link) { 203 if (e1 != NULL && e2 != NULL) 204 break; 205 206 if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) 207 e1 = cur; 208 else if (strcmp(cur->ifa->ifa_name, b->ifa_name) == 0) 209 e2 = cur; 210 } 211 212 if (e1 == NULL || e2 == NULL) 213 return (0); 214 else 215 return (e1->if_order - e2->if_order); 216 217 } else if (a->ifa_addr != NULL && b->ifa_addr != NULL) { 218 TAILQ_FOREACH(cur, q, link) { 219 if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) { 220 e1 = cur; 221 break; 222 } 223 } 224 225 if (e1 == NULL) 226 return (0); 227 228 af1 = a->ifa_addr->sa_family; 229 af2 = b->ifa_addr->sa_family; 230 231 if (af1 < nitems(e1->af_orders) && af2 < nitems(e1->af_orders)) 232 return (e1->af_orders[af1] - e1->af_orders[af2]); 233 } 234 235 return (0); 236 } 237 238 static struct ifaddrs * 239 sortifaddrs(struct ifaddrs *list, ifaddrs_cmp compare, struct ifa_queue *q) 240 { 241 struct ifaddrs *right, *temp, *last, *result, *next, *tail; 242 243 right = temp = last = list; 244 result = next = tail = NULL; 245 246 if (list == NULL || list->ifa_next == NULL) 247 return (list); 248 249 while (temp != NULL && temp->ifa_next != NULL) { 250 last = right; 251 right = right->ifa_next; 252 temp = temp->ifa_next->ifa_next; 253 } 254 255 last->ifa_next = NULL; 256 257 list = sortifaddrs(list, compare, q); 258 right = sortifaddrs(right, compare, q); 259 260 while (list != NULL || right != NULL) { 261 if (right == NULL) { 262 next = list; 263 list = list->ifa_next; 264 } else if (list == NULL) { 265 next = right; 266 right = right->ifa_next; 267 } else if (compare(list, right, q) <= 0) { 268 next = list; 269 list = list->ifa_next; 270 } else { 271 next = right; 272 right = right->ifa_next; 273 } 274 275 if (result == NULL) 276 result = next; 277 else 278 tail->ifa_next = next; 279 280 tail = next; 281 } 282 283 return (result); 284 } 285 286 static void 287 printifnamemaybe(void) 288 { 289 if (printifname) 290 printf("%s\n", IfName); 291 } 292 293 static void 294 freeformat(void) 295 { 296 if (f_inet != NULL) 297 free(f_inet); 298 if (f_inet6 != NULL) 299 free(f_inet6); 300 if (f_ether != NULL) 301 free(f_ether); 302 if (f_addr != NULL) 303 free(f_addr); 304 } 305 306 static void 307 setformat(char *input) 308 { 309 char *formatstr, *category, *modifier; 310 char **fp; 311 312 formatstr = strdup(input); 313 if (formatstr == NULL) 314 err(1, "no memory to set format"); 315 316 while ((category = strsep(&formatstr, ",")) != NULL) { 317 modifier = strchr(category, ':'); 318 if (modifier == NULL || modifier[1] == '\0') { 319 warnx("skip invalid format specification: %s\n", 320 category); 321 continue; 322 } 323 324 modifier[0] = '\0'; 325 modifier++; 326 327 fp = NULL; 328 if (strcmp(category, "addr") == 0) 329 fp = &f_addr; 330 else if (strcmp(category, "ether") == 0) 331 fp = &f_ether; 332 else if (strcmp(category, "inet") == 0) 333 fp = &f_inet; 334 else if (strcmp(category, "inet6") == 0) 335 fp = &f_inet6; 336 337 if (fp != NULL) { 338 *fp = strdup(modifier); 339 if (*fp == NULL) 340 err(1, "strdup"); 341 } 342 } 343 344 free(formatstr); 345 } 346 347 348 int 349 main(int argc, char *argv[]) 350 { 351 int c, all, namesonly, downonly, uponly; 352 int ifindex, flags; 353 const struct afswtch *afp = NULL; 354 const struct sockaddr_dl *sdl; 355 const char *ifname, *matchgroup, *nogroup; 356 struct ifa_order_elt *cur, *tmp; 357 struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q); 358 struct ifaddrs *ifap, *sifap, *ifa; 359 struct ifreq ifr; 360 struct option *p; 361 size_t iflen; 362 char *envformat, *cp; 363 char options[1024]; 364 365 all = downonly = uponly = namesonly = verbose = noload = 0; 366 f_inet = f_inet6 = f_ether = f_addr = NULL; 367 matchgroup = nogroup = NULL; 368 369 /* 370 * Ensure we print interface name when expected to, 371 * even if we terminate early due to error. 372 */ 373 atexit(printifnamemaybe); 374 375 envformat = getenv("IFCONFIG_FORMAT"); 376 if (envformat != NULL) 377 setformat(envformat); 378 379 /* Parse leading line options */ 380 strlcpy(options, "adf:G:klmnuv", sizeof(options)); 381 for (p = opts; p != NULL; p = p->next) 382 strlcat(options, p->opt, sizeof(options)); 383 while ((c = getopt(argc, argv, options)) != -1) { 384 switch (c) { 385 case 'a': /* scan all interfaces */ 386 all++; 387 break; 388 case 'd': /* restrict scan to "down" interfaces */ 389 downonly++; 390 break; 391 case 'f': 392 setformat(optarg); 393 break; 394 case 'G': 395 if (!all) 396 usage(); 397 nogroup = optarg; 398 break; 399 case 'k': 400 printkeys++; 401 break; 402 case 'l': /* scan interface names only */ 403 namesonly++; 404 break; 405 case 'm': /* show media choices in status */ 406 supmedia = 1; 407 break; 408 case 'n': /* suppress module loading */ 409 noload++; 410 break; 411 case 'u': /* restrict scan to "up" interfaces */ 412 uponly++; 413 break; 414 case 'v': 415 verbose++; 416 break; 417 case 'g': 418 if (all) { 419 matchgroup = optarg; 420 break; 421 } 422 /* FALLTHROUGH */ 423 default: 424 for (p = opts; p != NULL; p = p->next) 425 if (p->opt[0] == c) { 426 p->cb(optarg); 427 break; 428 } 429 if (p == NULL) 430 usage(); 431 break; 432 } 433 } 434 argc -= optind; 435 argv += optind; 436 437 /* -l cannot be used with -a or -m */ 438 if (namesonly && (all || supmedia)) 439 usage(); 440 441 /* nonsense.. */ 442 if (uponly && downonly) 443 usage(); 444 445 /* no arguments is equivalent to '-a' */ 446 if (!namesonly && argc < 1) 447 all = 1; 448 449 /* -a and -l allow an address family arg to limit the output */ 450 if (all || namesonly) { 451 if (argc > 1) 452 usage(); 453 454 ifname = NULL; 455 ifindex = 0; 456 if (argc == 1) { 457 afp = af_getbyname(*argv); 458 if (afp == NULL) 459 usage(); 460 if (afp->af_name != NULL) 461 argc--, argv++; 462 /* leave with afp non-zero */ 463 } 464 } else { 465 /* not listing, need an argument */ 466 if (argc < 1) 467 usage(); 468 469 ifname = *argv; 470 argc--, argv++; 471 472 /* check and maybe load support for this interface */ 473 ifmaybeload(ifname); 474 475 ifindex = if_nametoindex(ifname); 476 if (ifindex == 0) { 477 /* 478 * NOTE: We must special-case the `create' command 479 * right here as we would otherwise fail when trying 480 * to find the interface. 481 */ 482 if (argc > 0 && (strcmp(argv[0], "create") == 0 || 483 strcmp(argv[0], "plumb") == 0)) { 484 iflen = strlcpy(IfName, ifname, sizeof(IfName)); 485 if (iflen >= sizeof(IfName)) 486 errx(1, "%s: cloning name too long", 487 ifname); 488 ifconfig(argc, argv, 1, NULL); 489 exit(exit_code); 490 } 491 errx(1, "interface %s does not exist", ifname); 492 } else { 493 /* 494 * Do not allow to use `create` command as hostname 495 * if address family is not specified. 496 */ 497 if (argc > 0 && (strcmp(argv[0], "create") == 0 || 498 strcmp(argv[0], "plumb") == 0)) { 499 if (argc == 1) 500 errx(1, "interface %s already exists", 501 ifname); 502 argc--, argv++; 503 } 504 } 505 } 506 507 /* Check for address family */ 508 if (argc > 0) { 509 afp = af_getbyname(*argv); 510 if (afp != NULL) 511 argc--, argv++; 512 } 513 514 /* 515 * Check for a requested configuration action on a single interface, 516 * which doesn't require building, sorting, and searching the entire 517 * system address list. 518 */ 519 if (argc > 0 && ifname != NULL) { 520 iflen = strlcpy(IfName, ifname, sizeof(IfName)); 521 if (iflen >= sizeof(IfName)) 522 errx(1, "%s: cloning name too long", ifname); 523 524 flags = getifflags(IfName, -1); 525 if (!((downonly && (flags & IFF_UP) != 0) || 526 (uponly && (flags & IFF_UP) == 0))) { 527 ifconfig(argc, argv, 0, afp); 528 } 529 530 exit(exit_code); 531 } 532 533 if (getifaddrs(&ifap) != 0) 534 err(1, "getifaddrs"); 535 if (calcorders(ifap, &q) != 0) 536 err(1, "calcorders"); 537 sifap = sortifaddrs(ifap, cmpifaddrs, &q); 538 539 TAILQ_FOREACH_MUTABLE(cur, &q, link, tmp) 540 free(cur); 541 542 cp = NULL; 543 ifindex = 0; 544 for (ifa = sifap; ifa != NULL; ifa = ifa->ifa_next) { 545 memset(&ifr, 0, sizeof(ifr)); 546 strlcpy(ifr.ifr_name, ifa->ifa_name, sizeof(ifr.ifr_name)); 547 if (sizeof(ifr.ifr_addr) >= ifa->ifa_addr->sa_len) { 548 memcpy(&ifr.ifr_addr, ifa->ifa_addr, 549 ifa->ifa_addr->sa_len); 550 } 551 552 if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0) 553 continue; 554 if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0) 555 continue; 556 iflen = strlcpy(IfName, ifa->ifa_name, sizeof(IfName)); 557 if (iflen >= sizeof(IfName)) { 558 warnx("%s: interface name too long, skipping", 559 ifa->ifa_name); 560 continue; 561 } 562 cp = ifa->ifa_name; 563 564 if (downonly && (ifa->ifa_flags & IFF_UP) != 0) 565 continue; 566 if (uponly && (ifa->ifa_flags & IFF_UP) == 0) 567 continue; 568 if (!group_member(ifa->ifa_name, matchgroup, nogroup)) 569 continue; 570 571 if (ifa->ifa_addr->sa_family == AF_LINK) 572 sdl = (const struct sockaddr_dl *)ifa->ifa_addr; 573 else 574 sdl = NULL; 575 576 /* Are we just listing the interfaces? */ 577 if (namesonly) { 578 if (afp == NULL || 579 afp->af_af != AF_LINK || 580 (sdl != NULL && sdl->sdl_type == IFT_ETHER)) { 581 printf("%s%s", (ifindex > 0 ? " " : ""), 582 IfName); 583 ifindex++; 584 } 585 continue; 586 } 587 588 if (argc > 0) 589 ifconfig(argc, argv, 0, afp); 590 else 591 status(afp, sdl, ifa); 592 } 593 594 if (namesonly) 595 putchar('\n'); 596 597 freeifaddrs(ifap); 598 freeformat(); 599 600 return (exit_code); 601 } 602 603 604 /* 605 * Returns true if an interface should be listed because any its groups 606 * matches shell pattern "match" and none of groups matches pattern "nomatch". 607 * If any pattern is NULL, corresponding condition is skipped. 608 */ 609 static bool 610 group_member(const char *ifname, const char *match, const char *nomatch) 611 { 612 static int sock = -1; 613 614 struct ifgroupreq ifgr; 615 struct ifg_req *ifg; 616 size_t len; 617 bool matched, nomatched; 618 619 /* Sanity checks. */ 620 if (match == NULL && nomatch == NULL) 621 return (true); 622 if (ifname == NULL) 623 return (false); 624 625 memset(&ifgr, 0, sizeof(ifgr)); 626 strlcpy(ifgr.ifgr_name, ifname, sizeof(ifgr.ifgr_name)); 627 628 /* The socket is opened once. Let _exit() close it. */ 629 if (sock == -1) { 630 sock = socket(AF_LOCAL, SOCK_DGRAM, 0); 631 if (sock == -1) 632 errx(1, "%s: socket(AF_LOCAL,SOCK_DGRAM)", __func__); 633 } 634 635 /* Determine amount of memory for the list of groups. */ 636 if (ioctl(sock, SIOCGIFGROUP, &ifgr) == -1) { 637 if (errno == EINVAL || errno == ENOTTY) 638 return (false); 639 else 640 errx(1, "%s: SIOCGIFGROUP", __func__); 641 } 642 643 /* Obtain the list of groups. */ 644 len = ifgr.ifgr_len; 645 ifgr.ifgr_groups = calloc(1, len); 646 if (ifgr.ifgr_groups == NULL) 647 errx(1, "%s: no memory", __func__); 648 if (ioctl(sock, SIOCGIFGROUP, &ifgr) == -1) 649 errx(1, "%s: SIOCGIFGROUP", __func__); 650 651 /* Perform matching. */ 652 matched = false; 653 nomatched = true; 654 for (ifg = ifgr.ifgr_groups; ifg && len >= sizeof(*ifg); ifg++) { 655 len -= sizeof(struct ifg_req); 656 if (match) 657 matched |= !fnmatch(match, ifg->ifgrq_group, 0); 658 if (nomatch) 659 nomatched &= fnmatch(nomatch, ifg->ifgrq_group, 0); 660 } 661 662 if (match && !nomatch) 663 return (matched); 664 if (!match && nomatch) 665 return (nomatched); 666 return (matched && nomatched); 667 } 668 669 670 static struct afswtch *afs = NULL; 671 672 void 673 af_register(struct afswtch *p) 674 { 675 p->af_next = afs; 676 afs = p; 677 } 678 679 static struct afswtch * 680 af_getbyname(const char *name) 681 { 682 struct afswtch *afp; 683 684 for (afp = afs; afp != NULL; afp = afp->af_next) 685 if (strcmp(afp->af_name, name) == 0) 686 return afp; 687 return NULL; 688 } 689 690 static struct afswtch * 691 af_getbyfamily(int af) 692 { 693 struct afswtch *afp; 694 695 for (afp = afs; afp != NULL; afp = afp->af_next) 696 if (afp->af_af == af) 697 return afp; 698 return NULL; 699 } 700 701 static void 702 af_other_status(int s) 703 { 704 struct afswtch *afp; 705 uint8_t afmask[howmany(AF_MAX, NBBY)]; 706 707 memset(afmask, 0, sizeof(afmask)); 708 for (afp = afs; afp != NULL; afp = afp->af_next) { 709 if (afp->af_other_status == NULL) 710 continue; 711 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af)) 712 continue; 713 afp->af_other_status(s); 714 setbit(afmask, afp->af_af); 715 } 716 } 717 718 static void 719 af_all_tunnel_status(int s) 720 { 721 struct afswtch *afp; 722 uint8_t afmask[howmany(AF_MAX, NBBY)]; 723 724 memset(afmask, 0, sizeof(afmask)); 725 for (afp = afs; afp != NULL; afp = afp->af_next) { 726 if (afp->af_status_tunnel == NULL) 727 continue; 728 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af)) 729 continue; 730 afp->af_status_tunnel(s); 731 setbit(afmask, afp->af_af); 732 } 733 } 734 735 static struct cmd *cmds = NULL; 736 737 void 738 cmd_register(struct cmd *p) 739 { 740 p->c_next = cmds; 741 cmds = p; 742 } 743 744 static const struct cmd * 745 cmd_lookup(const char *name, int iscreate) 746 { 747 const struct cmd *p; 748 749 for (p = cmds; p != NULL; p = p->c_next) { 750 if (strcmp(name, p->c_name) == 0) { 751 if (iscreate) { 752 if (p->c_iscloneop) 753 return p; 754 } else { 755 if (!p->c_iscloneop) 756 return p; 757 } 758 } 759 } 760 761 return NULL; 762 } 763 764 struct callback { 765 callback_func *cb_func; 766 void *cb_arg; 767 struct callback *cb_next; 768 }; 769 static struct callback *callbacks = NULL; 770 771 void 772 callback_register(callback_func *func, void *arg) 773 { 774 struct callback *cb; 775 776 cb = malloc(sizeof(struct callback)); 777 if (cb == NULL) 778 errx(1, "unable to allocate memory for callback"); 779 cb->cb_func = func; 780 cb->cb_arg = arg; 781 cb->cb_next = callbacks; 782 callbacks = cb; 783 } 784 785 /* specially-handled commands */ 786 static void setifaddr(const char *, int, int, const struct afswtch *); 787 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr); 788 789 static void setifdstaddr(const char *, int, int, const struct afswtch *); 790 static const struct cmd setifdstaddr_cmd = 791 DEF_CMD("ifdstaddr", 0, setifdstaddr); 792 793 static int 794 ifconfig(int argc, char *const *argv, int iscreate, 795 const struct afswtch *uafp) 796 { 797 const struct afswtch *afp, *nafp; 798 const struct cmd *p; 799 struct ifreq ifr; 800 struct callback *cb; 801 int s; 802 803 memset(&ifr, 0, sizeof(ifr)); 804 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 805 afp = uafp != NULL ? uafp : af_getbyname("inet"); 806 top: 807 ifr.ifr_addr.sa_family = 808 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ? 809 AF_LOCAL : afp->af_af; 810 811 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 && 812 (uafp != NULL || errno != EAFNOSUPPORT || 813 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)) 814 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family); 815 816 while (argc > 0) { 817 p = cmd_lookup(*argv, iscreate); 818 if (iscreate && p == NULL) { 819 /* 820 * Push the clone create callback so the new 821 * device is created and can be used for any 822 * remaining arguments. 823 */ 824 cb = callbacks; 825 if (cb == NULL) 826 errx(1, "internal error, no callback"); 827 callbacks = cb->cb_next; 828 cb->cb_func(s, cb->cb_arg); 829 iscreate = 0; 830 831 /* 832 * Handle any address family spec that 833 * immediately follows and potentially 834 * recreate the socket. 835 */ 836 nafp = af_getbyname(*argv); 837 if (nafp != NULL) { 838 argc--, argv++; 839 if (nafp != afp) { 840 close(s); 841 afp = nafp; 842 goto top; 843 } 844 } 845 846 /* Look for a normal parameter. */ 847 continue; 848 } 849 if (p == NULL) { 850 /* 851 * Not a recognized command, choose between setting 852 * the interface address and the dst address. 853 */ 854 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd); 855 } 856 if (p->c_u.c_func || p->c_u.c_func2) { 857 if (p->c_parameter == NEXTARG) { 858 if (argv[1] == NULL) 859 errx(1, "'%s' requires argument", 860 p->c_name); 861 p->c_u.c_func(argv[1], 0, s, afp); 862 argc--, argv++; 863 } else if (p->c_parameter == OPTARG) { 864 p->c_u.c_func(argv[1], 0, s, afp); 865 if (argv[1] != NULL) 866 argc--, argv++; 867 } else if (p->c_parameter == NEXTARG2) { 868 if (argc < 3) 869 errx(1, "'%s' requires 2 arguments", 870 p->c_name); 871 p->c_u.c_func2(argv[1], argv[2], s, afp); 872 argc -= 2, argv += 2; 873 } else 874 p->c_u.c_func(*argv, p->c_parameter, s, afp); 875 } 876 argc--, argv++; 877 } 878 879 /* 880 * Do any post argument processing required by the address family. 881 */ 882 if (afp->af_postproc != NULL) 883 afp->af_postproc(s, afp); 884 /* 885 * Do deferred callbacks registered while processing 886 * command-line arguments. 887 */ 888 for (cb = callbacks; cb != NULL; cb = cb->cb_next) 889 cb->cb_func(s, cb->cb_arg); 890 /* 891 * Do deferred operations. 892 */ 893 if (clearaddr) { 894 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) { 895 warnx("interface %s cannot change %s addresses!", 896 IfName, afp->af_name); 897 clearaddr = 0; 898 } 899 } 900 if (clearaddr) { 901 strlcpy(afp->af_ridreq, IfName, sizeof(afp->af_ridreq)); 902 if (ioctl(s, afp->af_difaddr, afp->af_ridreq) < 0) { 903 if (errno == EADDRNOTAVAIL && doalias >= 0) { 904 /* means no previous address for interface */ 905 } else 906 Perror("ioctl (SIOCDIFADDR)"); 907 } 908 } 909 if (newaddr) { 910 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) { 911 warnx("interface %s cannot change %s addresses!", 912 IfName, afp->af_name); 913 newaddr = 0; 914 } 915 } 916 if (newaddr && (setaddr || setmask)) { 917 strlcpy(afp->af_addreq, IfName, sizeof(afp->af_addreq)); 918 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0) 919 Perror("ioctl (SIOCAIFADDR)"); 920 } 921 922 close(s); 923 return (0); 924 } 925 926 static void 927 setifaddr(const char *addr, int dummy __unused, int s __unused, 928 const struct afswtch *afp) 929 { 930 if (afp->af_getaddr == NULL) 931 return; 932 /* 933 * Delay the ioctl to set the interface addr until flags are all set. 934 * The address interpretation may depend on the flags, 935 * and the flags may change when the address is set. 936 */ 937 setaddr++; 938 if (doalias == 0 && afp->af_af != AF_LINK) 939 clearaddr = 1; 940 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR)); 941 } 942 943 static void 944 settunnel(const char *src, const char *dst, int s, const struct afswtch *afp) 945 { 946 struct addrinfo *srcres, *dstres; 947 int ecode; 948 949 if (afp->af_settunnel == NULL) { 950 warn("address family %s does not support tunnel setup", 951 afp->af_name); 952 return; 953 } 954 955 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0) 956 errx(1, "error in parsing address string: %s", 957 gai_strerror(ecode)); 958 959 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0) 960 errx(1, "error in parsing address string: %s", 961 gai_strerror(ecode)); 962 963 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family) 964 errx(1, 965 "source and destination address families do not match"); 966 967 afp->af_settunnel(s, srcres, dstres); 968 969 freeaddrinfo(srcres); 970 freeaddrinfo(dstres); 971 } 972 973 static void 974 deletetunnel(const char *arg __unused, int dummy __unused, int s, 975 const struct afswtch *afp __unused) 976 { 977 struct ifreq ifr; 978 979 memset(&ifr, 0, sizeof(ifr)); 980 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 981 982 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0) 983 err(1, "SIOCDIFPHYADDR"); 984 } 985 986 static void 987 setifnetmask(const char *addr, int dummy __unused, int s __unused, 988 const struct afswtch *afp) 989 { 990 if (afp->af_getaddr != NULL) { 991 setmask++; 992 afp->af_getaddr(addr, MASK); 993 } 994 } 995 996 static void 997 setifbroadaddr(const char *addr, int dummy __unused, int s __unused, 998 const struct afswtch *afp) 999 { 1000 if (afp->af_getaddr != NULL) 1001 afp->af_getaddr(addr, DSTADDR); 1002 } 1003 1004 static void 1005 notealias(const char *addr __unused, int param, int s __unused, 1006 const struct afswtch *afp) 1007 { 1008 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) 1009 if (setaddr && doalias == 0 && param < 0) { 1010 if (afp->af_addreq != NULL && afp->af_ridreq != NULL) 1011 memcpy(rqtosa(af_ridreq), rqtosa(af_addreq), 1012 rqtosa(af_addreq)->sa_len); 1013 } 1014 doalias = param; 1015 if (param < 0) { 1016 clearaddr = 1; 1017 newaddr = 0; 1018 } else { 1019 clearaddr = 0; 1020 } 1021 #undef rqtosa 1022 } 1023 1024 static void 1025 setifdstaddr(const char *addr, int dummy __unused, int s __unused, 1026 const struct afswtch *afp __unused) 1027 { 1028 if (afp->af_getaddr != NULL) 1029 afp->af_getaddr(addr, DSTADDR); 1030 } 1031 1032 static int 1033 getifflags(const char *ifname, int us) 1034 { 1035 struct ifreq ifr; 1036 int s; 1037 1038 memset(&ifr, 0, sizeof(ifr)); 1039 strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1040 1041 s = us; 1042 if (us < 0) { 1043 if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0) 1044 err(1, "socket(family AF_LOCAL,SOCK_DGRAM)"); 1045 } 1046 1047 if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0) 1048 Perror("ioctl (SIOCGIFFLAGS)"); 1049 1050 if (us < 0) 1051 close(s); 1052 1053 return ((ifr.ifr_flags & 0xffff) | (ifr.ifr_flagshigh << 16)); 1054 } 1055 1056 static void 1057 setifflags(const char *vname, int value, int s, 1058 const struct afswtch *afp __unused) 1059 { 1060 struct ifreq ifr; 1061 int flags; 1062 1063 flags = getifflags(IfName, s); 1064 if (value < 0) { 1065 value = -value; 1066 flags &= ~value; 1067 } else { 1068 flags |= value; 1069 } 1070 1071 memset(&ifr, 0, sizeof(ifr)); 1072 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 1073 ifr.ifr_flags = flags & 0xffff; 1074 ifr.ifr_flagshigh = flags >> 16; 1075 1076 if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0) 1077 Perror(vname); 1078 } 1079 1080 void 1081 setifcap(const char *vname, int value, int s, 1082 const struct afswtch *afp __unused) 1083 { 1084 struct ifreq ifr; 1085 int flags; 1086 1087 memset(&ifr, 0, sizeof(ifr)); 1088 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 1089 1090 if (ioctl(s, SIOCGIFCAP, &ifr) < 0) 1091 Perror("ioctl (SIOCGIFCAP)"); 1092 1093 flags = ifr.ifr_curcap; 1094 if (value < 0) { 1095 value = -value; 1096 flags &= ~value; 1097 } else { 1098 flags |= value; 1099 } 1100 ifr.ifr_reqcap = flags; 1101 if (ioctl(s, SIOCSIFCAP, &ifr) < 0) 1102 Perror(vname); 1103 } 1104 1105 static void 1106 setifmetric(const char *val, int dummy __unused, int s, 1107 const struct afswtch *afp __unused) 1108 { 1109 struct ifreq ifr; 1110 1111 memset(&ifr, 0, sizeof(ifr)); 1112 strlcpy(ifr.ifr_name, IfName, sizeof (ifr.ifr_name)); 1113 ifr.ifr_metric = atoi(val); 1114 1115 if (ioctl(s, SIOCSIFMETRIC, &ifr) < 0) 1116 err(1, "ioctl SIOCSIFMETRIC (set metric)"); 1117 } 1118 1119 static void 1120 setifmtu(const char *val, int dummy __unused, int s, 1121 const struct afswtch *afp __unused) 1122 { 1123 struct ifreq ifr; 1124 1125 memset(&ifr, 0, sizeof(ifr)); 1126 strlcpy(ifr.ifr_name, IfName, sizeof (ifr.ifr_name)); 1127 ifr.ifr_mtu = atoi(val); 1128 1129 if (ioctl(s, SIOCSIFMTU, &ifr) < 0) 1130 err(1, "ioctl SIOCSIFMTU (set mtu)"); 1131 } 1132 1133 static void 1134 setiftsolen(const char *val, int dummy __unused, int s, 1135 const struct afswtch *afp __unused) 1136 { 1137 struct ifreq ifr; 1138 1139 memset(&ifr, 0, sizeof(ifr)); 1140 strlcpy(ifr.ifr_name, IfName, sizeof (ifr.ifr_name)); 1141 ifr.ifr_tsolen = atoi(val); 1142 1143 if (ioctl(s, SIOCSIFTSOLEN, &ifr) < 0) 1144 err(1, "ioctl SIOCSIFTSOLEN (set tsolen)"); 1145 } 1146 1147 static void 1148 setifname(const char *val, int dummy __unused, int s, 1149 const struct afswtch *afp __unused) 1150 { 1151 struct ifreq ifr; 1152 char newname[IFNAMSIZ]; 1153 int n; 1154 1155 n = snprintf(newname, sizeof(newname), "%s", val); 1156 if (n >= (int)sizeof(newname)) 1157 errx(1, "ifname too long"); 1158 1159 memset(&ifr, 0, sizeof(ifr)); 1160 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 1161 ifr.ifr_data = newname; 1162 1163 if (ioctl(s, SIOCSIFNAME, &ifr) < 0) 1164 err(1, "ioctl SIOCSIFNAME (set name)"); 1165 1166 printifname = 1; 1167 strlcpy(IfName, newname, sizeof(IfName)); 1168 } 1169 1170 static void 1171 setifpollcpu(const char *val __unused, int dummy __unused, int s, 1172 const struct afswtch *afp) 1173 { 1174 warnx("pollcpu is deprecated, use polling or npolling instead"); 1175 setifflags("npolling", IFF_NPOLLING, s, afp); 1176 } 1177 1178 static void 1179 setifdescr(const char *val, int dummy __unused, int s, 1180 const struct afswtch *afp __unused) 1181 { 1182 struct ifreq ifr; 1183 char *newdescr; 1184 1185 memset(&ifr, 0, sizeof(ifr)); 1186 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 1187 1188 ifr.ifr_buffer.length = strlen(val) + 1; 1189 if (ifr.ifr_buffer.length == 1) { 1190 ifr.ifr_buffer.buffer = newdescr = NULL; 1191 ifr.ifr_buffer.length = 0; 1192 } else { 1193 newdescr = strdup(val); 1194 ifr.ifr_buffer.buffer = newdescr; 1195 if (newdescr == NULL) { 1196 warn("no memory to set ifdescr"); 1197 return; 1198 } 1199 } 1200 1201 if (ioctl(s, SIOCSIFDESCR, &ifr) < 0) 1202 warn("ioctl (set descr)"); 1203 1204 free(newdescr); 1205 } 1206 1207 static void 1208 unsetifdescr(const char *val __unused, int dummy __unused, int s, 1209 const struct afswtch *afp __unused) 1210 { 1211 setifdescr("", 0, s, 0); 1212 } 1213 1214 #define IFFBITS \ 1215 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \ 1216 "\10NOARP\11PROMISC\12ALLMULTI\14SIMPLEX\15LINK0\16LINK1\17LINK2" \ 1217 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP\25NPOLLING\26IDIRECT" 1218 1219 #define IFCAPBITS \ 1220 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7RSS" \ 1221 "\10VLAN_HWCSUM\11TSO" 1222 1223 /* 1224 * Print the status of the interface. If an address family was 1225 * specified, show only it; otherwise, show them all. 1226 */ 1227 static void 1228 status(const struct afswtch *afp, const struct sockaddr_dl *sdl __unused, 1229 struct ifaddrs *ifa) 1230 { 1231 struct ifreq ifr; 1232 struct ifstat ifs; 1233 struct ifaddrs *ift; 1234 int allfamilies, s; 1235 1236 memset(&ifr, 0, sizeof(ifr)); 1237 strlcpy(ifr.ifr_name, IfName, sizeof(ifr.ifr_name)); 1238 1239 if (afp == NULL) { 1240 allfamilies = 1; 1241 ifr.ifr_addr.sa_family = AF_LOCAL; 1242 } else { 1243 allfamilies = 0; 1244 ifr.ifr_addr.sa_family = 1245 afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af; 1246 } 1247 1248 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0); 1249 if (s < 0) 1250 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family); 1251 1252 printf("%s: ", IfName); 1253 printb("flags", ifa->ifa_flags, IFFBITS); 1254 if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1) 1255 printf(" metric %d", ifr.ifr_metric); 1256 if (ioctl(s, SIOCGIFMTU, &ifr) != -1) 1257 printf(" mtu %d", ifr.ifr_mtu); 1258 putchar('\n'); 1259 1260 for (;;) { 1261 if ((descr = reallocf(descr, descrlen)) != NULL) { 1262 ifr.ifr_buffer.buffer = descr; 1263 ifr.ifr_buffer.length = descrlen; 1264 if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) { 1265 if (ifr.ifr_buffer.length > 1) 1266 printf("\tdescription: %s\n", descr); 1267 } else if (errno == ENOMSG) { 1268 break; 1269 } else if (errno == ENAMETOOLONG) { 1270 descrlen = ifr.ifr_buffer.length; 1271 continue; 1272 } else { 1273 warn("ioctl (get descr)"); 1274 } 1275 } else { 1276 warn("unable to allocate memory for interface " 1277 "description"); 1278 } 1279 break; 1280 } 1281 1282 if (ioctl(s, SIOCGIFCAP, &ifr) == 0) { 1283 if (ifr.ifr_curcap != 0) { 1284 printb("\toptions", ifr.ifr_curcap, IFCAPBITS); 1285 putchar('\n'); 1286 } 1287 if (supmedia && ifr.ifr_reqcap != 0) { 1288 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS); 1289 putchar('\n'); 1290 if (ifr.ifr_reqcap & IFCAP_TSO) { 1291 if (ioctl(s, SIOCGIFTSOLEN, &ifr) == 0) { 1292 printf("\ttsolen %d", ifr.ifr_tsolen); 1293 putchar('\n'); 1294 } 1295 } 1296 } 1297 } 1298 1299 tunnel_status(s); 1300 1301 for (ift = ifa; ift != NULL; ift = ift->ifa_next) { 1302 if (ift->ifa_addr == NULL) 1303 continue; 1304 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0) 1305 continue; 1306 if (allfamilies) { 1307 const struct afswtch *p; 1308 p = af_getbyfamily(ift->ifa_addr->sa_family); 1309 if (p != NULL && p->af_status != NULL) 1310 p->af_status(s, ift); 1311 } else if (afp->af_af == ift->ifa_addr->sa_family) 1312 afp->af_status(s, ift); 1313 } 1314 #if 0 1315 if (allfamilies || afp->af_af == AF_LINK) { 1316 const struct afswtch *lafp; 1317 1318 /* 1319 * Hack; the link level address is received separately 1320 * from the routing information so any address is not 1321 * handled above. Cobble together an entry and invoke 1322 * the status method specially. 1323 */ 1324 lafp = af_getbyname("lladdr"); 1325 if (lafp != NULL) { 1326 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl; 1327 lafp->af_status(s, &info); 1328 } 1329 } 1330 #endif 1331 if (allfamilies) 1332 af_other_status(s); 1333 else if (afp->af_other_status != NULL) 1334 afp->af_other_status(s); 1335 1336 strlcpy(ifs.ifs_name, IfName, sizeof(ifs.ifs_name)); 1337 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0) 1338 printf("%s", ifs.ascii); 1339 1340 close(s); 1341 } 1342 1343 static void 1344 tunnel_status(int s) 1345 { 1346 af_all_tunnel_status(s); 1347 } 1348 1349 void 1350 Perror(const char *cmd) 1351 { 1352 switch (errno) { 1353 case ENXIO: 1354 errx(1, "%s: no such interface", cmd); 1355 break; 1356 case EPERM: 1357 errx(1, "%s: permission denied", cmd); 1358 break; 1359 default: 1360 err(1, "%s", cmd); 1361 } 1362 } 1363 1364 /* 1365 * Print a value a la the %pb%i format of the kernel's kprintf() 1366 */ 1367 void 1368 printb(const char *s, unsigned v, const char *bits) 1369 { 1370 int i, any = 0; 1371 char c; 1372 1373 if (bits && *bits == 8) 1374 printf("%s=%o", s, v); 1375 else 1376 printf("%s=%x", s, v); 1377 bits++; 1378 if (bits) { 1379 putchar('<'); 1380 while ((i = *bits++) != '\0') { 1381 if (v & (1 << (i-1))) { 1382 if (any) 1383 putchar(','); 1384 any = 1; 1385 for (; (c = *bits) > 32; bits++) 1386 putchar(c); 1387 } else 1388 for (; *bits > 32; bits++) 1389 ; 1390 } 1391 putchar('>'); 1392 } 1393 } 1394 1395 void 1396 ifmaybeload(const char *name) 1397 { 1398 #define MOD_PREFIX_LEN 3 /* "if_" */ 1399 struct module_stat mstat; 1400 int fileid, modid; 1401 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp; 1402 const char *cp; 1403 1404 /* loading suppressed by the user */ 1405 if (noload) 1406 return; 1407 1408 /* trim the interface number off the end */ 1409 strlcpy(ifname, name, sizeof(ifname)); 1410 for (dp = ifname; *dp != 0; dp++) 1411 if (isdigit(*dp)) { 1412 *dp = 0; 1413 break; 1414 } 1415 1416 /* turn interface and unit into module name */ 1417 strlcpy(ifkind, "if_", sizeof(ifkind)); 1418 strlcat(ifkind, ifname, sizeof(ifkind)); 1419 1420 /* scan files in kernel */ 1421 mstat.version = sizeof(struct module_stat); 1422 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) { 1423 /* scan modules in file */ 1424 for (modid = kldfirstmod(fileid); modid > 0; 1425 modid = modfnext(modid)) { 1426 if (modstat(modid, &mstat) < 0) 1427 continue; 1428 /* strip bus name if present */ 1429 if ((cp = strchr(mstat.name, '/')) != NULL) { 1430 cp++; 1431 } else { 1432 cp = mstat.name; 1433 } 1434 /* already loaded? */ 1435 if (strcmp(ifname, cp) == 0 || 1436 strcmp(ifkind, cp) == 0) 1437 return; 1438 } 1439 } 1440 1441 /* not present, we should try to load it */ 1442 kldload(ifkind); 1443 } 1444 1445 static struct cmd basic_cmds[] = { 1446 DEF_CMD("up", IFF_UP, setifflags), 1447 DEF_CMD("down", -IFF_UP, setifflags), 1448 DEF_CMD("arp", -IFF_NOARP, setifflags), 1449 DEF_CMD("-arp", IFF_NOARP, setifflags), 1450 DEF_CMD("debug", IFF_DEBUG, setifflags), 1451 DEF_CMD("-debug", -IFF_DEBUG, setifflags), 1452 DEF_CMD_ARG("description", setifdescr), 1453 DEF_CMD_ARG("descr", setifdescr), 1454 DEF_CMD("-description", 0, unsetifdescr), 1455 DEF_CMD("-descr", 0, unsetifdescr), 1456 DEF_CMD("promisc", IFF_PPROMISC, setifflags), 1457 DEF_CMD("-promisc", -IFF_PPROMISC, setifflags), 1458 DEF_CMD("add", IFF_UP, notealias), 1459 DEF_CMD("alias", IFF_UP, notealias), 1460 DEF_CMD("-alias", -IFF_UP, notealias), 1461 DEF_CMD("delete", -IFF_UP, notealias), 1462 DEF_CMD("remove", -IFF_UP, notealias), 1463 #ifdef notdef 1464 #define EN_SWABIPS 0x1000 1465 DEF_CMD("swabips", EN_SWABIPS, setifflags), 1466 DEF_CMD("-swabips", -EN_SWABIPS, setifflags), 1467 #endif 1468 DEF_CMD_ARG("netmask", setifnetmask), 1469 DEF_CMD_ARG("metric", setifmetric), 1470 DEF_CMD_ARG("broadcast", setifbroadaddr), 1471 DEF_CMD_ARG2("tunnel", settunnel), 1472 DEF_CMD("-tunnel", 0, deletetunnel), 1473 DEF_CMD("deletetunnel", 0, deletetunnel), 1474 DEF_CMD("link0", IFF_LINK0, setifflags), 1475 DEF_CMD("-link0", -IFF_LINK0, setifflags), 1476 DEF_CMD("link1", IFF_LINK1, setifflags), 1477 DEF_CMD("-link1", -IFF_LINK1, setifflags), 1478 DEF_CMD("link2", IFF_LINK2, setifflags), 1479 DEF_CMD("-link2", -IFF_LINK2, setifflags), 1480 DEF_CMD("monitor", IFF_MONITOR, setifflags), 1481 DEF_CMD("-monitor", -IFF_MONITOR, setifflags), 1482 DEF_CMD("staticarp", IFF_STATICARP, setifflags), 1483 DEF_CMD("-staticarp", -IFF_STATICARP, setifflags), 1484 DEF_CMD("polling", IFF_NPOLLING, setifflags), 1485 DEF_CMD("-polling", -IFF_NPOLLING, setifflags), 1486 DEF_CMD("npolling", IFF_NPOLLING, setifflags), 1487 DEF_CMD("-npolling", -IFF_NPOLLING, setifflags), 1488 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap), 1489 DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap), 1490 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap), 1491 DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap), 1492 DEF_CMD("netcons", IFCAP_NETCONS, setifcap), 1493 DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap), 1494 DEF_CMD("rss", IFCAP_RSS, setifcap), 1495 DEF_CMD("-rss", -IFCAP_RSS, setifcap), 1496 DEF_CMD("tso", IFCAP_TSO, setifcap), 1497 DEF_CMD("-tso", -IFCAP_TSO, setifcap), 1498 DEF_CMD("normal", -IFF_LINK0, setifflags), 1499 DEF_CMD("compress", IFF_LINK0, setifflags), 1500 DEF_CMD("noicmp", IFF_LINK1, setifflags), 1501 DEF_CMD_ARG("mtu", setifmtu), 1502 DEF_CMD_ARG("name", setifname), 1503 DEF_CMD_ARG("pollcpu", setifpollcpu), 1504 DEF_CMD_ARG("tsolen", setiftsolen) 1505 }; 1506 1507 __constructor(101) 1508 static void 1509 ifconfig_ctor(void) 1510 { 1511 size_t i; 1512 1513 for (i = 0; i < nitems(basic_cmds); i++) 1514 cmd_register(&basic_cmds[i]); 1515 } 1516