ifconfig.c revision 1.178
1 /* $NetBSD: ifconfig.c,v 1.178 2006/11/13 05:13:39 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1983, 1993 42 * The Regents of the University of California. All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. Neither the name of the University nor the names of its contributors 53 * may be used to endorse or promote products derived from this software 54 * without specific prior written permission. 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 57 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 58 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 59 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 60 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 61 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 62 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 63 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 64 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 65 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 66 * SUCH DAMAGE. 67 */ 68 69 #include <sys/cdefs.h> 70 #ifndef lint 71 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 72 The Regents of the University of California. All rights reserved.\n"); 73 #endif /* not lint */ 74 75 #ifndef lint 76 #if 0 77 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; 78 #else 79 __RCSID("$NetBSD: ifconfig.c,v 1.178 2006/11/13 05:13:39 dyoung Exp $"); 80 #endif 81 #endif /* not lint */ 82 83 #include <sys/param.h> 84 #include <sys/socket.h> 85 #include <sys/ioctl.h> 86 87 #include <net/if.h> 88 #include <net/if_dl.h> 89 #include <net/if_media.h> 90 #include <net/if_ether.h> 91 #include <netinet/in.h> /* XXX */ 92 #include <netinet/in_var.h> /* XXX */ 93 94 #include <netdb.h> 95 96 #include <sys/protosw.h> 97 98 #include <ctype.h> 99 #include <err.h> 100 #include <errno.h> 101 #include <stddef.h> 102 #include <stdio.h> 103 #include <stdlib.h> 104 #include <string.h> 105 #include <unistd.h> 106 #include <ifaddrs.h> 107 #include <util.h> 108 109 #include "extern.h" 110 111 #ifndef INET_ONLY 112 #include "af_atalk.h" 113 #include "af_iso.h" 114 #endif /* ! INET_ONLY */ 115 #include "af_inet.h" 116 #ifdef INET6 117 #include "af_inet6.h" 118 #endif /* INET6 */ 119 120 #include "agr.h" 121 #include "carp.h" 122 #include "ieee80211.h" 123 #include "tunnel.h" 124 #include "vlan.h" 125 126 struct ifreq ifr, ridreq; 127 struct ifaliasreq addreq __attribute__((aligned(4))); 128 129 char name[30]; 130 u_short flags; 131 int setaddr, doalias; 132 u_long metric, mtu, preference; 133 int clearaddr, s; 134 int newaddr = -1; 135 int conflicting = 0; 136 int check_up_state = -1; 137 int af; 138 int aflag, bflag, Cflag, dflag, lflag, mflag, sflag, uflag, vflag, zflag; 139 int hflag; 140 int have_preference = 0; 141 #ifdef INET6 142 int Lflag; 143 #endif 144 int explicit_prefix = 0; 145 146 struct ifcapreq g_ifcr; 147 int g_ifcr_updated; 148 149 void notealias(const char *, int); 150 void notrailers(const char *, int); 151 void setifaddr(const char *, int); 152 void setifdstaddr(const char *, int); 153 void setifflags(const char *, int); 154 void check_ifflags_up(const char *); 155 void setifcaps(const char *, int); 156 void setifbroadaddr(const char *, int); 157 void setifipdst(const char *, int); 158 void setifmetric(const char *, int); 159 void setifpreference(const char *, int); 160 void setifmtu(const char *, int); 161 void setifnetmask(const char *, int); 162 void setifprefixlen(const char *, int); 163 void setmedia(const char *, int); 164 void setmediamode(const char *, int); 165 void setmediaopt(const char *, int); 166 void unsetmediaopt(const char *, int); 167 void setmediainst(const char *, int); 168 void clone_create(const char *, int); 169 void clone_destroy(const char *, int); 170 int main(int, char *[]); 171 void do_setifpreference(void); 172 173 /* 174 * Media stuff. Whenever a media command is first performed, the 175 * currently select media is grabbed for this interface. If `media' 176 * is given, the current media word is modifed. `mediaopt' commands 177 * only modify the set and clear words. They then operate on the 178 * current media word later. 179 */ 180 int media_current; 181 int mediaopt_set; 182 int mediaopt_clear; 183 184 int actions; /* Actions performed */ 185 186 #define A_MEDIA 0x0001 /* media command */ 187 #define A_MEDIAOPTSET 0x0002 /* mediaopt command */ 188 #define A_MEDIAOPTCLR 0x0004 /* -mediaopt command */ 189 #define A_MEDIAOPT (A_MEDIAOPTSET|A_MEDIAOPTCLR) 190 #define A_MEDIAINST 0x0008 /* instance or inst command */ 191 #define A_MEDIAMODE 0x0010 /* mode command */ 192 193 #define NEXTARG 0xffffff 194 #define NEXTARG2 0xfffffe 195 196 const struct cmd { 197 const char *c_name; 198 int c_parameter; /* NEXTARG means next argv */ 199 int c_action; /* defered action */ 200 void (*c_func)(const char *, int); 201 } cmds[] = { 202 { "up", IFF_UP, 0, setifflags } , 203 { "down", -IFF_UP, 0, setifflags }, 204 { "trailers", -1, 0, notrailers }, 205 { "-trailers", 1, 0, notrailers }, 206 { "arp", -IFF_NOARP, 0, setifflags }, 207 { "-arp", IFF_NOARP, 0, setifflags }, 208 { "debug", IFF_DEBUG, 0, setifflags }, 209 { "-debug", -IFF_DEBUG, 0, setifflags }, 210 { "alias", IFF_UP, 0, notealias }, 211 { "-alias", -IFF_UP, 0, notealias }, 212 { "delete", -IFF_UP, 0, notealias }, 213 #ifdef notdef 214 #define EN_SWABIPS 0x1000 215 { "swabips", EN_SWABIPS, 0, setifflags }, 216 { "-swabips", -EN_SWABIPS, 0, setifflags }, 217 #endif 218 { "netmask", NEXTARG, 0, setifnetmask }, 219 { "metric", NEXTARG, 0, setifmetric }, 220 { "mtu", NEXTARG, 0, setifmtu }, 221 { "bssid", NEXTARG, 0, setifbssid }, 222 { "-bssid", -1, 0, setifbssid }, 223 { "chan", NEXTARG, 0, setifchan }, 224 { "-chan", -1, 0, setifchan }, 225 { "ssid", NEXTARG, 0, setifnwid }, 226 { "nwid", NEXTARG, 0, setifnwid }, 227 { "nwkey", NEXTARG, 0, setifnwkey }, 228 { "-nwkey", -1, 0, setifnwkey }, 229 { "powersave", 1, 0, setifpowersave }, 230 { "-powersave", 0, 0, setifpowersave }, 231 { "powersavesleep", NEXTARG, 0, setifpowersavesleep }, 232 { "hidessid", 1, 0, sethidessid }, 233 { "-hidessid", 0, 0, sethidessid }, 234 { "apbridge", 1, 0, setapbridge }, 235 { "-apbridge", 0, 0, setapbridge }, 236 { "broadcast", NEXTARG, 0, setifbroadaddr }, 237 { "ipdst", NEXTARG, 0, setifipdst }, 238 { "prefixlen", NEXTARG, 0, setifprefixlen}, 239 { "preference", NEXTARG, 0, setifpreference}, 240 #ifndef INET_ONLY 241 /* CARP */ 242 { "advbase", NEXTARG, 0, setcarp_advbase }, 243 { "advskew", NEXTARG, 0, setcarp_advskew }, 244 { "pass", NEXTARG, 0, setcarp_passwd }, 245 { "vhid", NEXTARG, 0, setcarp_vhid }, 246 { "state", NEXTARG, 0, setcarp_state }, 247 { "carpdev", NEXTARG, 0, setcarpdev }, 248 { "-carpdev", 1, 0, unsetcarpdev }, 249 #endif 250 #ifdef INET6 251 { "anycast", IN6_IFF_ANYCAST, 0, setia6flags }, 252 { "-anycast", -IN6_IFF_ANYCAST, 0, setia6flags }, 253 { "tentative", IN6_IFF_TENTATIVE, 0, setia6flags }, 254 { "-tentative", -IN6_IFF_TENTATIVE, 0, setia6flags }, 255 { "deprecated", IN6_IFF_DEPRECATED, 0, setia6flags }, 256 { "-deprecated", -IN6_IFF_DEPRECATED, 0, setia6flags }, 257 { "pltime", NEXTARG, 0, setia6pltime }, 258 { "vltime", NEXTARG, 0, setia6vltime }, 259 { "eui64", 0, 0, setia6eui64 }, 260 #endif /*INET6*/ 261 #ifndef INET_ONLY 262 { "range", NEXTARG, 0, setatrange }, 263 { "phase", NEXTARG, 0, setatphase }, 264 { "snpaoffset", NEXTARG, 0, setsnpaoffset }, 265 { "nsellength", NEXTARG, 0, setnsellength }, 266 #endif /* INET_ONLY */ 267 { "tunnel", NEXTARG2, 0, (void (*)(const char *, int)) 268 settunnel } , 269 { "deletetunnel", 0, 0, deletetunnel }, 270 { "vlan", NEXTARG, 0, setvlan } , 271 { "vlanif", NEXTARG, 0, setvlanif } , 272 { "-vlanif", 0, 0, unsetvlanif } , 273 #if 0 274 /* XXX `create' special-cased below */ 275 { "create", 0, 0, clone_create } , 276 #endif 277 { "destroy", 0, 0, clone_destroy } , 278 { "link0", IFF_LINK0, 0, setifflags } , 279 { "-link0", -IFF_LINK0, 0, setifflags } , 280 { "link1", IFF_LINK1, 0, setifflags } , 281 { "-link1", -IFF_LINK1, 0, setifflags } , 282 { "link2", IFF_LINK2, 0, setifflags } , 283 { "-link2", -IFF_LINK2, 0, setifflags } , 284 { "media", NEXTARG, A_MEDIA, setmedia }, 285 { "mediaopt", NEXTARG, A_MEDIAOPTSET, setmediaopt }, 286 { "-mediaopt", NEXTARG, A_MEDIAOPTCLR, unsetmediaopt }, 287 { "mode", NEXTARG, A_MEDIAMODE, setmediamode }, 288 { "instance", NEXTARG, A_MEDIAINST, setmediainst }, 289 { "inst", NEXTARG, A_MEDIAINST, setmediainst }, 290 { "ip4csum-tx", IFCAP_CSUM_IPv4_Tx,0, setifcaps }, 291 { "-ip4csum-tx",-IFCAP_CSUM_IPv4_Tx,0, setifcaps }, 292 { "ip4csum-rx", IFCAP_CSUM_IPv4_Rx,0, setifcaps }, 293 { "-ip4csum-rx",-IFCAP_CSUM_IPv4_Rx,0, setifcaps }, 294 { "tcp4csum-tx",IFCAP_CSUM_TCPv4_Tx,0, setifcaps }, 295 { "-tcp4csum-tx",-IFCAP_CSUM_TCPv4_Tx,0, setifcaps }, 296 { "tcp4csum-rx",IFCAP_CSUM_TCPv4_Rx,0, setifcaps }, 297 { "-tcp4csum-rx",-IFCAP_CSUM_TCPv4_Rx,0, setifcaps }, 298 { "udp4csum-tx",IFCAP_CSUM_UDPv4_Tx,0, setifcaps }, 299 { "-udp4csum-tx",-IFCAP_CSUM_UDPv4_Tx,0, setifcaps }, 300 { "udp4csum-rx",IFCAP_CSUM_UDPv4_Rx,0, setifcaps }, 301 { "-udp4csum-rx",-IFCAP_CSUM_UDPv4_Rx,0, setifcaps }, 302 { "tcp6csum-tx",IFCAP_CSUM_TCPv6_Tx,0, setifcaps }, 303 { "-tcp6csum-tx",-IFCAP_CSUM_TCPv6_Tx,0, setifcaps }, 304 { "tcp6csum-rx",IFCAP_CSUM_TCPv6_Rx,0, setifcaps }, 305 { "-tcp6csum-rx",-IFCAP_CSUM_TCPv6_Rx,0, setifcaps }, 306 { "udp6csum-tx",IFCAP_CSUM_UDPv6_Tx,0, setifcaps }, 307 { "-udp6csum-tx",-IFCAP_CSUM_UDPv6_Tx,0, setifcaps }, 308 { "udp6csum-rx",IFCAP_CSUM_UDPv6_Rx,0, setifcaps }, 309 { "-udp6csum-rx",-IFCAP_CSUM_UDPv6_Rx,0, setifcaps }, 310 { "ip4csum", IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_IPv4_Rx, 311 0, setifcaps }, 312 { "-ip4csum", -(IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_IPv4_Rx), 313 0, setifcaps }, 314 { "tcp4csum", IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_TCPv4_Rx, 315 0, setifcaps }, 316 { "-tcp4csum", -(IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_TCPv4_Rx), 317 0, setifcaps }, 318 { "udp4csum", IFCAP_CSUM_UDPv4_Tx|IFCAP_CSUM_UDPv4_Rx, 319 0, setifcaps }, 320 { "-udp4csum", -(IFCAP_CSUM_UDPv4_Tx|IFCAP_CSUM_UDPv4_Rx), 321 0, setifcaps }, 322 { "tcp6csum", IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_TCPv6_Rx, 323 0, setifcaps }, 324 { "-tcp6csum", -(IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_TCPv6_Rx), 325 0, setifcaps }, 326 { "udp6csum", IFCAP_CSUM_UDPv6_Tx|IFCAP_CSUM_UDPv6_Rx, 327 0, setifcaps }, 328 { "-udp6csum", -(IFCAP_CSUM_UDPv6_Tx|IFCAP_CSUM_UDPv6_Rx), 329 0, setifcaps }, 330 { "tso4", IFCAP_TSOv4, 0, setifcaps }, 331 { "-tso4", -IFCAP_TSOv4, 0, setifcaps }, 332 { "agrport", NEXTARG, 0, agraddport } , 333 { "-agrport", NEXTARG, 0, agrremport } , 334 { 0, 0, 0, setifaddr }, 335 { 0, 0, 0, setifdstaddr }, 336 }; 337 338 int getinfo(struct ifreq *); 339 int carrier(void); 340 void printall(const char *); 341 void list_cloners(void); 342 void status(const struct sockaddr_dl *); 343 void usage(void); 344 345 void print_media_word(int, const char *); 346 void process_media_commands(void); 347 void init_current_media(void); 348 349 /* Known address families */ 350 const struct afswtch afs[] = { 351 { "inet", AF_INET, in_status, in_getaddr, in_getprefix, 352 SIOCDIFADDR, SIOCAIFADDR, SIOCGIFADDR, &ridreq, &in_addreq }, 353 #ifdef INET6 354 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix, 355 SIOCDIFADDR_IN6, SIOCAIFADDR_IN6, 356 /* 357 * Deleting the first address before setting new one is 358 * not prefered way in this protocol. 359 */ 360 0, 361 &in6_ridreq, &in6_addreq }, 362 #endif 363 #ifndef INET_ONLY /* small version, for boot media */ 364 { "atalk", AF_APPLETALK, at_status, at_getaddr, NULL, 365 SIOCDIFADDR, SIOCAIFADDR, SIOCGIFADDR, &addreq, &addreq }, 366 { "iso", AF_ISO, iso_status, iso_getaddr, NULL, 367 SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, SIOCGIFADDR_ISO, 368 &iso_ridreq, &iso_addreq }, 369 #endif /* INET_ONLY */ 370 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } 371 }; 372 373 const struct afswtch *afp; /*the address family being set or asked about*/ 374 375 int 376 main(int argc, char *argv[]) 377 { 378 int ch; 379 380 /* Parse command-line options */ 381 aflag = mflag = vflag = zflag = 0; 382 while ((ch = getopt(argc, argv, "AabCdhlmsuvz" 383 #ifdef INET6 384 "L" 385 #endif 386 )) != -1) { 387 switch (ch) { 388 case 'A': 389 warnx("-A is deprecated"); 390 break; 391 392 case 'a': 393 aflag = 1; 394 break; 395 396 case 'b': 397 bflag = 1; 398 break; 399 400 case 'C': 401 Cflag = 1; 402 break; 403 404 case 'd': 405 dflag = 1; 406 break; 407 case 'h': 408 hflag = 1; 409 break; 410 #ifdef INET6 411 case 'L': 412 Lflag = 1; 413 break; 414 #endif 415 416 case 'l': 417 lflag = 1; 418 break; 419 420 case 'm': 421 mflag = 1; 422 break; 423 424 case 's': 425 sflag = 1; 426 break; 427 428 case 'u': 429 uflag = 1; 430 break; 431 432 case 'v': 433 vflag = 1; 434 break; 435 436 case 'z': 437 zflag = 1; 438 break; 439 440 441 default: 442 usage(); 443 /* NOTREACHED */ 444 } 445 } 446 argc -= optind; 447 argv += optind; 448 449 /* 450 * -l means "list all interfaces", and is mutally exclusive with 451 * all other flags/commands. 452 * 453 * -C means "list all names of cloners", and it mutually exclusive 454 * with all other flags/commands. 455 * 456 * -a means "print status of all interfaces". 457 */ 458 if ((lflag || Cflag) && (aflag || mflag || vflag || argc || zflag)) 459 usage(); 460 #ifdef INET6 461 if ((lflag || Cflag) && Lflag) 462 usage(); 463 #endif 464 if (lflag && Cflag) 465 usage(); 466 if (Cflag) { 467 if (argc) 468 usage(); 469 list_cloners(); 470 exit(0); 471 } 472 if (aflag || lflag) { 473 if (argc > 1) 474 usage(); 475 else if (argc == 1) { 476 afp = lookup_af_byname(argv[0]); 477 if (afp == NULL) 478 usage(); 479 } 480 if (afp) 481 af = ifr.ifr_addr.sa_family = afp->af_af; 482 else 483 af = ifr.ifr_addr.sa_family = afs[0].af_af; 484 printall(NULL); 485 exit(0); 486 } 487 488 /* Make sure there's an interface name. */ 489 if (argc < 1) 490 usage(); 491 if (strlcpy(name, argv[0], sizeof(name)) >= sizeof(name)) 492 errx(1, "interface name '%s' too long", argv[0]); 493 argc--; argv++; 494 495 /* 496 * NOTE: We must special-case the `create' command right 497 * here as we would otherwise fail in getinfo(). 498 */ 499 if (argc > 0 && strcmp(argv[0], "create") == 0) { 500 clone_create(argv[0], 0); 501 argc--, argv++; 502 if (argc == 0) 503 exit(0); 504 } 505 506 /* Check for address family. */ 507 afp = NULL; 508 if (argc > 0) { 509 afp = lookup_af_byname(argv[0]); 510 if (afp != NULL) { 511 argv++; 512 argc--; 513 } 514 } 515 516 /* Initialize af, just for use in getinfo(). */ 517 if (afp == NULL) 518 af = afs->af_af; 519 else 520 af = afp->af_af; 521 522 /* Get information about the interface. */ 523 estrlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 524 if (getinfo(&ifr) < 0) 525 exit(1); 526 527 if (sflag) { 528 if (argc != 0) 529 usage(); 530 else 531 exit(carrier()); 532 } 533 534 /* No more arguments means interface status. */ 535 if (argc == 0) { 536 printall(name); 537 exit(0); 538 } 539 540 /* The following operations assume inet family as the default. */ 541 if (afp == NULL) 542 afp = afs; 543 af = ifr.ifr_addr.sa_family = afp->af_af; 544 545 #ifdef INET6 546 in6_init(); 547 #endif 548 549 /* Process commands. */ 550 while (argc > 0) { 551 const struct cmd *p; 552 553 for (p = cmds; p->c_name; p++) 554 if (strcmp(argv[0], p->c_name) == 0) 555 break; 556 if (p->c_name == 0 && setaddr) { 557 if ((flags & IFF_POINTOPOINT) == 0) { 558 errx(EXIT_FAILURE, 559 "can't set destination address %s", 560 "on non-point-to-point link"); 561 } 562 p++; /* got src, do dst */ 563 } 564 if (p->c_func != NULL) { 565 if (p->c_parameter == NEXTARG) { 566 if (argc < 2) 567 errx(EXIT_FAILURE, 568 "'%s' requires argument", 569 p->c_name); 570 (*p->c_func)(argv[1], 0); 571 argc--, argv++; 572 } else if (p->c_parameter == NEXTARG2) { 573 if (argc < 3) 574 errx(EXIT_FAILURE, 575 "'%s' requires 2 arguments", 576 p->c_name); 577 ((void (*)(const char *, const char *)) 578 *p->c_func)(argv[1], argv[2]); 579 argc -= 2, argv += 2; 580 } else 581 (*p->c_func)(argv[0], p->c_parameter); 582 actions |= p->c_action; 583 } 584 argc--, argv++; 585 } 586 587 /* 588 * See if multiple alias, -alias, or delete commands were 589 * specified. More than one constitutes an invalid command line 590 */ 591 592 if (conflicting > 1) 593 errx(EXIT_FAILURE, 594 "Only one use of alias, -alias or delete is valid."); 595 596 /* Process any media commands that may have been issued. */ 597 process_media_commands(); 598 599 if (af == AF_INET6 && explicit_prefix == 0) { 600 /* 601 * Aggregatable address architecture defines all prefixes 602 * are 64. So, it is convenient to set prefixlen to 64 if 603 * it is not specified. 604 */ 605 setifprefixlen("64", 0); 606 /* in6_getprefix("64", MASK) if MASK is available here... */ 607 } 608 609 #ifndef INET_ONLY 610 if (af == AF_ISO) 611 adjust_nsellength(); 612 613 if (af == AF_APPLETALK) 614 checkatrange(&addreq.ifra_addr); 615 #endif /* INET_ONLY */ 616 617 if (clearaddr) { 618 estrlcpy(afp->af_ridreq, name, sizeof ifr.ifr_name); 619 if (ioctl(s, afp->af_difaddr, afp->af_ridreq) == -1) 620 err(EXIT_FAILURE, "SIOCDIFADDR"); 621 } 622 if (newaddr > 0) { 623 estrlcpy(afp->af_addreq, name, sizeof ifr.ifr_name); 624 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) == -1) 625 warn("SIOCAIFADDR"); 626 else if (check_up_state < 0) 627 check_up_state = 1; 628 } 629 630 if (have_preference) 631 do_setifpreference(); 632 if (g_ifcr_updated) { 633 strlcpy(g_ifcr.ifcr_name, name, 634 sizeof(g_ifcr.ifcr_name)); 635 if (ioctl(s, SIOCSIFCAP, &g_ifcr) == -1) 636 err(EXIT_FAILURE, "SIOCSIFCAP"); 637 } 638 639 if (check_up_state == 1) 640 check_ifflags_up(name); 641 642 exit(0); 643 } 644 645 const struct afswtch * 646 lookup_af_byname(const char *cp) 647 { 648 const struct afswtch *a; 649 650 for (a = afs; a->af_name != NULL; a++) 651 if (strcmp(a->af_name, cp) == 0) 652 return (a); 653 return (NULL); 654 } 655 656 const struct afswtch * 657 lookup_af_bynum(int afnum) 658 { 659 const struct afswtch *a; 660 661 for (a = afs; a->af_name != NULL; a++) 662 if (a->af_af == afnum) 663 return (a); 664 return (NULL); 665 } 666 667 void 668 getsock(int naf) 669 { 670 static int oaf = -1; 671 672 if (oaf == naf) 673 return; 674 if (oaf != -1) 675 close(s); 676 s = socket(naf, SOCK_DGRAM, 0); 677 if (s < 0) 678 oaf = -1; 679 else 680 oaf = naf; 681 } 682 683 int 684 getinfo(struct ifreq *giifr) 685 { 686 687 getsock(af); 688 if (s < 0) 689 err(EXIT_FAILURE, "socket"); 690 if (ioctl(s, SIOCGIFFLAGS, giifr) == -1) { 691 warn("SIOCGIFFLAGS %s", giifr->ifr_name); 692 return (-1); 693 } 694 flags = giifr->ifr_flags; 695 if (ioctl(s, SIOCGIFMETRIC, giifr) == -1) { 696 warn("SIOCGIFMETRIC %s", giifr->ifr_name); 697 metric = 0; 698 } else 699 metric = giifr->ifr_metric; 700 if (ioctl(s, SIOCGIFMTU, giifr) == -1) 701 mtu = 0; 702 else 703 mtu = giifr->ifr_mtu; 704 705 memset(&g_ifcr, 0, sizeof(g_ifcr)); 706 estrlcpy(g_ifcr.ifcr_name, giifr->ifr_name, sizeof(g_ifcr.ifcr_name)); 707 (void) ioctl(s, SIOCGIFCAP, &g_ifcr); 708 709 return (0); 710 } 711 712 void 713 printall(const char *ifname) 714 { 715 struct ifaddrs *ifap, *ifa; 716 struct ifreq paifr; 717 const struct sockaddr_dl *sdl = NULL; 718 int idx; 719 char *p; 720 721 if (getifaddrs(&ifap) != 0) 722 err(EXIT_FAILURE, "getifaddrs"); 723 p = NULL; 724 idx = 0; 725 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 726 memset(&paifr, 0, sizeof(paifr)); 727 estrlcpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name)); 728 if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) { 729 memcpy(&paifr.ifr_addr, ifa->ifa_addr, 730 ifa->ifa_addr->sa_len); 731 } 732 733 if (ifname && strcmp(ifname, ifa->ifa_name) != 0) 734 continue; 735 if (ifa->ifa_addr->sa_family == AF_LINK) 736 sdl = (const struct sockaddr_dl *) ifa->ifa_addr; 737 if (p && strcmp(p, ifa->ifa_name) == 0) 738 continue; 739 if (strlcpy(name, ifa->ifa_name, sizeof(name)) >= sizeof(name)) 740 continue; 741 p = ifa->ifa_name; 742 743 if (getinfo(&paifr) < 0) 744 continue; 745 if (bflag && (ifa->ifa_flags & IFF_BROADCAST) == 0) 746 continue; 747 if (dflag && (ifa->ifa_flags & IFF_UP) != 0) 748 continue; 749 if (uflag && (ifa->ifa_flags & IFF_UP) == 0) 750 continue; 751 752 if (sflag && carrier()) 753 continue; 754 idx++; 755 /* 756 * Are we just listing the interfaces? 757 */ 758 if (lflag) { 759 if (idx > 1) 760 printf(" "); 761 fputs(name, stdout); 762 continue; 763 } 764 765 status(sdl); 766 sdl = NULL; 767 } 768 if (lflag) 769 printf("\n"); 770 freeifaddrs(ifap); 771 } 772 773 void 774 list_cloners(void) 775 { 776 struct if_clonereq ifcr; 777 char *cp, *buf; 778 int idx; 779 780 memset(&ifcr, 0, sizeof(ifcr)); 781 782 getsock(AF_INET); 783 784 if (ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 785 err(EXIT_FAILURE, "SIOCIFGCLONERS for count"); 786 787 buf = malloc(ifcr.ifcr_total * IFNAMSIZ); 788 if (buf == NULL) 789 err(EXIT_FAILURE, "unable to allocate cloner name buffer"); 790 791 ifcr.ifcr_count = ifcr.ifcr_total; 792 ifcr.ifcr_buffer = buf; 793 794 if (ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 795 err(EXIT_FAILURE, "SIOCIFGCLONERS for names"); 796 797 /* 798 * In case some disappeared in the mean time, clamp it down. 799 */ 800 if (ifcr.ifcr_count > ifcr.ifcr_total) 801 ifcr.ifcr_count = ifcr.ifcr_total; 802 803 for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) { 804 if (idx > 0) 805 printf(" "); 806 printf("%s", cp); 807 } 808 809 printf("\n"); 810 free(buf); 811 return; 812 } 813 814 /*ARGSUSED*/ 815 void 816 clone_create(const char *addr, int param) 817 { 818 819 /* We're called early... */ 820 getsock(AF_INET); 821 822 estrlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 823 if (ioctl(s, SIOCIFCREATE, &ifr) == -1) 824 err(EXIT_FAILURE, "SIOCIFCREATE"); 825 } 826 827 /*ARGSUSED*/ 828 void 829 clone_destroy(const char *addr, int param) 830 { 831 832 estrlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 833 if (ioctl(s, SIOCIFDESTROY, &ifr) == -1) 834 err(EXIT_FAILURE, "SIOCIFDESTROY"); 835 } 836 837 /*ARGSUSED*/ 838 void 839 setifaddr(const char *addr, int param) 840 { 841 struct ifreq *siifr; /* XXX */ 842 843 /* 844 * Delay the ioctl to set the interface addr until flags are all set. 845 * The address interpretation may depend on the flags, 846 * and the flags may change when the address is set. 847 */ 848 setaddr++; 849 if (newaddr == -1) 850 newaddr = 1; 851 if (doalias == 0 && afp->af_gifaddr != 0) { 852 siifr = (struct ifreq *)afp->af_ridreq; 853 estrlcpy(siifr->ifr_name, name, sizeof(siifr->ifr_name)); 854 siifr->ifr_addr.sa_family = afp->af_af; 855 if (ioctl(s, afp->af_gifaddr, afp->af_ridreq) == 0) 856 clearaddr = 1; 857 else if (errno == EADDRNOTAVAIL) 858 /* No address was assigned yet. */ 859 ; 860 else 861 err(EXIT_FAILURE, "SIOCGIFADDR"); 862 } 863 864 (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR)); 865 } 866 867 void 868 setifnetmask(const char *addr, int d) 869 { 870 (*afp->af_getaddr)(addr, MASK); 871 } 872 873 void 874 setifbroadaddr(const char *addr, int d) 875 { 876 (*afp->af_getaddr)(addr, DSTADDR); 877 } 878 879 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) 880 /*ARGSUSED*/ 881 void 882 notealias(const char *addr, int param) 883 { 884 if (setaddr && doalias == 0 && param < 0) 885 (void) memcpy(rqtosa(af_ridreq), rqtosa(af_addreq), 886 rqtosa(af_addreq)->sa_len); 887 doalias = param; 888 if (param < 0) { 889 clearaddr = 1; 890 newaddr = 0; 891 conflicting++; 892 } else { 893 clearaddr = 0; 894 conflicting++; 895 } 896 } 897 898 /*ARGSUSED*/ 899 void 900 notrailers(const char *vname, int value) 901 { 902 puts("Note: trailers are no longer sent, but always received"); 903 } 904 905 /*ARGSUSED*/ 906 void 907 setifdstaddr(const char *addr, int param) 908 { 909 (*afp->af_getaddr)(addr, DSTADDR); 910 } 911 912 void 913 check_ifflags_up(const char *vname) 914 { 915 struct ifreq ifreq; 916 917 estrlcpy(ifreq.ifr_name, name, sizeof(ifreq.ifr_name)); 918 if (ioctl(s, SIOCGIFFLAGS, &ifreq) == -1) 919 err(EXIT_FAILURE, "SIOCGIFFLAGS"); 920 if (ifreq.ifr_flags & IFF_UP) 921 return; 922 ifreq.ifr_flags |= IFF_UP; 923 if (ioctl(s, SIOCSIFFLAGS, &ifreq) == -1) 924 err(EXIT_FAILURE, "SIOCSIFFLAGS"); 925 } 926 927 void 928 setifflags(const char *vname, int value) 929 { 930 struct ifreq ifreq; 931 932 estrlcpy(ifreq.ifr_name, name, sizeof(ifreq.ifr_name)); 933 if (ioctl(s, SIOCGIFFLAGS, &ifreq) == -1) 934 err(EXIT_FAILURE, "SIOCGIFFLAGS"); 935 flags = ifreq.ifr_flags; 936 937 if (value < 0) { 938 value = -value; 939 if (value == IFF_UP) 940 check_up_state = 0; 941 flags &= ~value; 942 } else 943 flags |= value; 944 ifreq.ifr_flags = flags; 945 if (ioctl(s, SIOCSIFFLAGS, &ifreq) == -1) 946 err(EXIT_FAILURE, "SIOCSIFFLAGS"); 947 } 948 949 void 950 setifcaps(const char *vname, int value) 951 { 952 953 if (value < 0) { 954 value = -value; 955 g_ifcr.ifcr_capenable &= ~value; 956 } else 957 g_ifcr.ifcr_capenable |= value; 958 959 g_ifcr_updated = 1; 960 } 961 962 void 963 setifmetric(const char *val, int d) 964 { 965 char *ep = NULL; 966 967 estrlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 968 ifr.ifr_metric = strtoul(val, &ep, 10); 969 if (!ep || *ep) 970 errx(EXIT_FAILURE, "%s: invalid metric", val); 971 if (ioctl(s, SIOCSIFMETRIC, &ifr) == -1) 972 warn("SIOCSIFMETRIC"); 973 } 974 975 void 976 setifpreference(const char *val, int d) 977 { 978 char *end = NULL; 979 if (setaddr <= 0) { 980 errx(EXIT_FAILURE, 981 "set address preference: first specify an address"); 982 } 983 preference = strtoul(val, &end, 10); 984 if (end == NULL || *end != '\0' || preference > UINT16_MAX) 985 errx(EXIT_FAILURE, "invalid preference %s", val); 986 have_preference = 1; 987 } 988 989 void 990 do_setifpreference(void) 991 { 992 struct if_addrprefreq ifap; 993 (void)strncpy(ifap.ifap_name, name, sizeof(ifap.ifap_name)); 994 ifap.ifap_preference = (uint16_t)preference; 995 (void)memcpy(&ifap.ifap_addr, rqtosa(af_addreq), 996 MIN(sizeof(ifap.ifap_addr), rqtosa(af_addreq)->sa_len)); 997 if (ioctl(s, SIOCSIFADDRPREF, &ifap) == -1) 998 warn("SIOCSIFADDRPREF"); 999 } 1000 1001 void 1002 setifmtu(const char *val, int d) 1003 { 1004 char *ep = NULL; 1005 1006 estrlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1007 ifr.ifr_mtu = strtoul(val, &ep, 10); 1008 if (!ep || *ep) 1009 errx(EXIT_FAILURE, "%s: invalid mtu", val); 1010 if (ioctl(s, SIOCSIFMTU, &ifr) == -1) 1011 warn("SIOCSIFMTU"); 1012 } 1013 1014 const char * 1015 get_string(const char *val, const char *sep, u_int8_t *buf, int *lenp) 1016 { 1017 int len; 1018 int hexstr; 1019 u_int8_t *p; 1020 1021 len = *lenp; 1022 p = buf; 1023 hexstr = (val[0] == '0' && tolower((u_char)val[1]) == 'x'); 1024 if (hexstr) 1025 val += 2; 1026 for (;;) { 1027 if (*val == '\0') 1028 break; 1029 if (sep != NULL && strchr(sep, *val) != NULL) { 1030 val++; 1031 break; 1032 } 1033 if (hexstr) { 1034 if (!isxdigit((u_char)val[0]) || 1035 !isxdigit((u_char)val[1])) { 1036 warnx("bad hexadecimal digits"); 1037 return NULL; 1038 } 1039 } 1040 if (p > buf + len) { 1041 if (hexstr) 1042 warnx("hexadecimal digits too long"); 1043 else 1044 warnx("strings too long"); 1045 return NULL; 1046 } 1047 if (hexstr) { 1048 #define tohex(x) (isdigit(x) ? (x) - '0' : tolower(x) - 'a' + 10) 1049 *p++ = (tohex((u_char)val[0]) << 4) | 1050 tohex((u_char)val[1]); 1051 #undef tohex 1052 val += 2; 1053 } else 1054 *p++ = *val++; 1055 } 1056 len = p - buf; 1057 if (len < *lenp) 1058 memset(p, 0, *lenp - len); 1059 *lenp = len; 1060 return val; 1061 } 1062 1063 void 1064 print_string(const u_int8_t *buf, int len) 1065 { 1066 int i; 1067 int hasspc; 1068 1069 i = 0; 1070 hasspc = 0; 1071 if (len < 2 || buf[0] != '0' || tolower(buf[1]) != 'x') { 1072 for (; i < len; i++) { 1073 if (!isprint(buf[i])) 1074 break; 1075 if (isspace(buf[i])) 1076 hasspc++; 1077 } 1078 } 1079 if (i == len) { 1080 if (hasspc || len == 0) 1081 printf("\"%.*s\"", len, buf); 1082 else 1083 printf("%.*s", len, buf); 1084 } else { 1085 printf("0x"); 1086 for (i = 0; i < len; i++) 1087 printf("%02x", buf[i]); 1088 } 1089 } 1090 1091 static void 1092 media_error(int type, const char *val, const char *opt) 1093 { 1094 errx(EXIT_FAILURE, "unknown %s media %s: %s", 1095 get_media_type_string(type), opt, val); 1096 } 1097 1098 void 1099 init_current_media(void) 1100 { 1101 struct ifmediareq ifmr; 1102 1103 /* 1104 * If we have not yet done so, grab the currently-selected 1105 * media. 1106 */ 1107 if ((actions & (A_MEDIA|A_MEDIAOPT|A_MEDIAMODE)) == 0) { 1108 (void) memset(&ifmr, 0, sizeof(ifmr)); 1109 estrlcpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); 1110 1111 if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) { 1112 /* 1113 * If we get E2BIG, the kernel is telling us 1114 * that there are more, so we can ignore it. 1115 */ 1116 if (errno != E2BIG) 1117 err(EXIT_FAILURE, "SGIOCGIFMEDIA"); 1118 } 1119 1120 media_current = ifmr.ifm_current; 1121 } 1122 1123 /* Sanity. */ 1124 if (IFM_TYPE(media_current) == 0) 1125 errx(EXIT_FAILURE, "%s: no link type?", name); 1126 } 1127 1128 void 1129 process_media_commands(void) 1130 { 1131 1132 if ((actions & (A_MEDIA|A_MEDIAOPT|A_MEDIAMODE)) == 0) { 1133 /* Nothing to do. */ 1134 return; 1135 } 1136 1137 /* 1138 * Media already set up, and commands sanity-checked. Set/clear 1139 * any options, and we're ready to go. 1140 */ 1141 media_current |= mediaopt_set; 1142 media_current &= ~mediaopt_clear; 1143 1144 estrlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1145 ifr.ifr_media = media_current; 1146 1147 if (ioctl(s, SIOCSIFMEDIA, &ifr) == -1) 1148 err(EXIT_FAILURE, "SIOCSIFMEDIA"); 1149 } 1150 1151 void 1152 setmedia(const char *val, int d) 1153 { 1154 int type, subtype, inst; 1155 1156 init_current_media(); 1157 1158 /* Only one media command may be given. */ 1159 if (actions & A_MEDIA) 1160 errx(EXIT_FAILURE, "only one `media' command may be issued"); 1161 1162 /* Must not come after mode commands */ 1163 if (actions & A_MEDIAMODE) 1164 errx(EXIT_FAILURE, 1165 "may not issue `media' after `mode' commands"); 1166 1167 /* Must not come after mediaopt commands */ 1168 if (actions & A_MEDIAOPT) 1169 errx(EXIT_FAILURE, 1170 "may not issue `media' after `mediaopt' commands"); 1171 1172 /* 1173 * No need to check if `instance' has been issued; setmediainst() 1174 * craps out if `media' has not been specified. 1175 */ 1176 1177 type = IFM_TYPE(media_current); 1178 inst = IFM_INST(media_current); 1179 1180 /* Look up the subtype. */ 1181 subtype = get_media_subtype(type, val); 1182 if (subtype == -1) 1183 media_error(type, val, "subtype"); 1184 1185 /* Build the new current media word. */ 1186 media_current = IFM_MAKEWORD(type, subtype, 0, inst); 1187 1188 /* Media will be set after other processing is complete. */ 1189 } 1190 1191 void 1192 setmediaopt(const char *val, int d) 1193 { 1194 char *invalid; 1195 1196 init_current_media(); 1197 1198 /* Can only issue `mediaopt' once. */ 1199 if (actions & A_MEDIAOPTSET) 1200 errx(EXIT_FAILURE, "only one `mediaopt' command may be issued"); 1201 1202 /* Can't issue `mediaopt' if `instance' has already been issued. */ 1203 if (actions & A_MEDIAINST) 1204 errx(EXIT_FAILURE, "may not issue `mediaopt' after `instance'"); 1205 1206 mediaopt_set = get_media_options(media_current, val, &invalid); 1207 if (mediaopt_set == -1) 1208 media_error(media_current, invalid, "option"); 1209 1210 /* Media will be set after other processing is complete. */ 1211 } 1212 1213 void 1214 unsetmediaopt(const char *val, int d) 1215 { 1216 char *invalid; 1217 1218 init_current_media(); 1219 1220 /* Can only issue `-mediaopt' once. */ 1221 if (actions & A_MEDIAOPTCLR) 1222 errx(EXIT_FAILURE, 1223 "only one `-mediaopt' command may be issued"); 1224 1225 /* May not issue `media' and `-mediaopt'. */ 1226 if (actions & A_MEDIA) 1227 errx(EXIT_FAILURE, 1228 "may not issue both `media' and `-mediaopt'"); 1229 1230 /* 1231 * No need to check for A_MEDIAINST, since the test for A_MEDIA 1232 * implicitly checks for A_MEDIAINST. 1233 */ 1234 1235 mediaopt_clear = get_media_options(media_current, val, &invalid); 1236 if (mediaopt_clear == -1) 1237 media_error(media_current, invalid, "option"); 1238 1239 /* Media will be set after other processing is complete. */ 1240 } 1241 1242 void 1243 setmediainst(const char *val, int d) 1244 { 1245 int type, subtype, options, inst; 1246 1247 init_current_media(); 1248 1249 /* Can only issue `instance' once. */ 1250 if (actions & A_MEDIAINST) 1251 errx(EXIT_FAILURE, "only one `instance' command may be issued"); 1252 1253 /* Must have already specified `media' */ 1254 if ((actions & A_MEDIA) == 0) 1255 errx(EXIT_FAILURE, "must specify `media' before `instance'"); 1256 1257 type = IFM_TYPE(media_current); 1258 subtype = IFM_SUBTYPE(media_current); 1259 options = IFM_OPTIONS(media_current); 1260 1261 inst = atoi(val); 1262 if (inst < 0 || inst > IFM_INST_MAX) 1263 errx(EXIT_FAILURE, "invalid media instance: %s", val); 1264 1265 media_current = IFM_MAKEWORD(type, subtype, options, inst); 1266 1267 /* Media will be set after other processing is complete. */ 1268 } 1269 1270 void 1271 setmediamode(const char *val, int d) 1272 { 1273 int type, subtype, options, inst, mode; 1274 1275 init_current_media(); 1276 1277 /* Can only issue `mode' once. */ 1278 if (actions & A_MEDIAMODE) 1279 errx(EXIT_FAILURE, "only one `mode' command may be issued"); 1280 1281 type = IFM_TYPE(media_current); 1282 subtype = IFM_SUBTYPE(media_current); 1283 options = IFM_OPTIONS(media_current); 1284 inst = IFM_INST(media_current); 1285 1286 mode = get_media_mode(type, val); 1287 if (mode == -1) 1288 media_error(type, val, "mode"); 1289 1290 media_current = IFM_MAKEWORD(type, subtype, options, inst) | mode; 1291 1292 /* Media will be set after other processing is complete. */ 1293 } 1294 1295 void 1296 print_media_word(int ifmw, const char *opt_sep) 1297 { 1298 const char *str; 1299 1300 printf("%s", get_media_subtype_string(ifmw)); 1301 1302 /* Find mode. */ 1303 if (IFM_MODE(ifmw) != 0) { 1304 str = get_media_mode_string(ifmw); 1305 if (str != NULL) 1306 printf(" mode %s", str); 1307 } 1308 1309 /* Find options. */ 1310 for (; (str = get_media_option_string(&ifmw)) != NULL; opt_sep = ",") 1311 printf("%s%s", opt_sep, str); 1312 1313 if (IFM_INST(ifmw) != 0) 1314 printf(" instance %d", IFM_INST(ifmw)); 1315 } 1316 1317 int 1318 carrier(void) 1319 { 1320 struct ifmediareq ifmr; 1321 1322 (void) memset(&ifmr, 0, sizeof(ifmr)); 1323 estrlcpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); 1324 1325 if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) { 1326 /* 1327 * Interface doesn't support SIOC{G,S}IFMEDIA; 1328 * assume ok. 1329 */ 1330 return 0; 1331 } 1332 if ((ifmr.ifm_status & IFM_AVALID) == 0) { 1333 /* 1334 * Interface doesn't report media-valid status. 1335 * assume ok. 1336 */ 1337 return 0; 1338 } 1339 /* otherwise, return ok for active, not-ok if not active. */ 1340 return !(ifmr.ifm_status & IFM_ACTIVE); 1341 } 1342 1343 1344 const int ifm_status_valid_list[] = IFM_STATUS_VALID_LIST; 1345 1346 const struct ifmedia_status_description ifm_status_descriptions[] = 1347 IFM_STATUS_DESCRIPTIONS; 1348 1349 /* 1350 * Print the status of the interface. If an address family was 1351 * specified, show it and it only; otherwise, show them all. 1352 */ 1353 void 1354 status(const struct sockaddr_dl *sdl) 1355 { 1356 const struct afswtch *p = afp; 1357 struct ifmediareq ifmr; 1358 struct ifdatareq ifdr; 1359 int *media_list, i; 1360 char hbuf[NI_MAXHOST]; 1361 char fbuf[BUFSIZ]; 1362 1363 (void)snprintb(fbuf, sizeof(fbuf), IFFBITS, flags); 1364 printf("%s: flags=%s", name, &fbuf[2]); 1365 if (metric) 1366 printf(" metric %lu", metric); 1367 if (mtu) 1368 printf(" mtu %lu", mtu); 1369 printf("\n"); 1370 1371 if (g_ifcr.ifcr_capabilities) { 1372 (void)snprintb(fbuf, sizeof(fbuf), IFCAPBITS, 1373 g_ifcr.ifcr_capabilities); 1374 printf("\tcapabilities=%s\n", &fbuf[2]); 1375 (void)snprintb(fbuf, sizeof(fbuf), IFCAPBITS, 1376 g_ifcr.ifcr_capenable); 1377 printf("\tenabled=%s\n", &fbuf[2]); 1378 } 1379 1380 ieee80211_status(); 1381 vlan_status(); 1382 #ifndef INET_ONLY 1383 carp_status(); 1384 #endif 1385 tunnel_status(); 1386 agr_status(); 1387 1388 if (sdl != NULL && 1389 getnameinfo((const struct sockaddr *)sdl, sdl->sdl_len, 1390 hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) == 0 && 1391 hbuf[0] != '\0') 1392 printf("\taddress: %s\n", hbuf); 1393 1394 (void) memset(&ifmr, 0, sizeof(ifmr)); 1395 estrlcpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); 1396 1397 if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) { 1398 /* 1399 * Interface doesn't support SIOC{G,S}IFMEDIA. 1400 */ 1401 goto iface_stats; 1402 } 1403 1404 if (ifmr.ifm_count == 0) { 1405 warnx("%s: no media types?", name); 1406 goto iface_stats; 1407 } 1408 1409 media_list = (int *)malloc(ifmr.ifm_count * sizeof(int)); 1410 if (media_list == NULL) 1411 err(EXIT_FAILURE, "malloc"); 1412 ifmr.ifm_ulist = media_list; 1413 1414 if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) 1415 err(EXIT_FAILURE, "SIOCGIFMEDIA"); 1416 1417 printf("\tmedia: %s ", get_media_type_string(ifmr.ifm_current)); 1418 print_media_word(ifmr.ifm_current, " "); 1419 if (ifmr.ifm_active != ifmr.ifm_current) { 1420 printf(" ("); 1421 print_media_word(ifmr.ifm_active, " "); 1422 printf(")"); 1423 } 1424 printf("\n"); 1425 1426 if (ifmr.ifm_status & IFM_STATUS_VALID) { 1427 const struct ifmedia_status_description *ifms; 1428 int bitno, found = 0; 1429 1430 printf("\tstatus: "); 1431 for (bitno = 0; ifm_status_valid_list[bitno] != 0; bitno++) { 1432 for (ifms = ifm_status_descriptions; 1433 ifms->ifms_valid != 0; ifms++) { 1434 if (ifms->ifms_type != 1435 IFM_TYPE(ifmr.ifm_current) || 1436 ifms->ifms_valid != 1437 ifm_status_valid_list[bitno]) 1438 continue; 1439 printf("%s%s", found ? ", " : "", 1440 IFM_STATUS_DESC(ifms, ifmr.ifm_status)); 1441 found = 1; 1442 1443 /* 1444 * For each valid indicator bit, there's 1445 * only one entry for each media type, so 1446 * terminate the inner loop now. 1447 */ 1448 break; 1449 } 1450 } 1451 1452 if (found == 0) 1453 printf("unknown"); 1454 printf("\n"); 1455 } 1456 1457 if (mflag) { 1458 int type, printed_type; 1459 1460 for (type = IFM_NMIN; type <= IFM_NMAX; type += IFM_NMIN) { 1461 for (i = 0, printed_type = 0; i < ifmr.ifm_count; i++) { 1462 if (IFM_TYPE(media_list[i]) != type) 1463 continue; 1464 if (printed_type == 0) { 1465 printf("\tsupported %s media:\n", 1466 get_media_type_string(type)); 1467 printed_type = 1; 1468 } 1469 printf("\t\tmedia "); 1470 print_media_word(media_list[i], " mediaopt "); 1471 printf("\n"); 1472 } 1473 } 1474 } 1475 1476 free(media_list); 1477 1478 iface_stats: 1479 if (!vflag && !zflag) 1480 goto proto_status; 1481 1482 estrlcpy(ifdr.ifdr_name, name, sizeof(ifdr.ifdr_name)); 1483 1484 if (ioctl(s, zflag ? SIOCZIFDATA:SIOCGIFDATA, &ifdr) == -1) { 1485 err(EXIT_FAILURE, zflag ? "SIOCZIFDATA" : "SIOCGIFDATA"); 1486 } else { 1487 struct if_data * const ifi = &ifdr.ifdr_data; 1488 char buf[5]; 1489 1490 #define PLURAL(n) ((n) == 1 ? "" : "s") 1491 #define PLURALSTR(s) ((atof(s)) == 1.0 ? "" : "s") 1492 printf("\tinput: %llu packet%s, ", 1493 (unsigned long long) ifi->ifi_ipackets, 1494 PLURAL(ifi->ifi_ipackets)); 1495 if (hflag) { 1496 (void) humanize_number(buf, sizeof(buf), 1497 (int64_t) ifi->ifi_ibytes, "", HN_AUTOSCALE, 1498 HN_NOSPACE | HN_DECIMAL); 1499 printf("%s byte%s", buf, 1500 PLURALSTR(buf)); 1501 } else 1502 printf("%llu byte%s", 1503 (unsigned long long) ifi->ifi_ibytes, 1504 PLURAL(ifi->ifi_ibytes)); 1505 if (ifi->ifi_imcasts) 1506 printf(", %llu multicast%s", 1507 (unsigned long long) ifi->ifi_imcasts, 1508 PLURAL(ifi->ifi_imcasts)); 1509 if (ifi->ifi_ierrors) 1510 printf(", %llu error%s", 1511 (unsigned long long) ifi->ifi_ierrors, 1512 PLURAL(ifi->ifi_ierrors)); 1513 if (ifi->ifi_iqdrops) 1514 printf(", %llu queue drop%s", 1515 (unsigned long long) ifi->ifi_iqdrops, 1516 PLURAL(ifi->ifi_iqdrops)); 1517 if (ifi->ifi_noproto) 1518 printf(", %llu unknown protocol", 1519 (unsigned long long) ifi->ifi_noproto); 1520 printf("\n\toutput: %llu packet%s, ", 1521 (unsigned long long) ifi->ifi_opackets, 1522 PLURAL(ifi->ifi_opackets)); 1523 if (hflag) { 1524 (void) humanize_number(buf, sizeof(buf), 1525 (int64_t) ifi->ifi_obytes, "", HN_AUTOSCALE, 1526 HN_NOSPACE | HN_DECIMAL); 1527 printf("%s byte%s", buf, 1528 PLURALSTR(buf)); 1529 } else 1530 printf("%llu byte%s", 1531 (unsigned long long) ifi->ifi_obytes, 1532 PLURAL(ifi->ifi_obytes)); 1533 if (ifi->ifi_omcasts) 1534 printf(", %llu multicast%s", 1535 (unsigned long long) ifi->ifi_omcasts, 1536 PLURAL(ifi->ifi_omcasts)); 1537 if (ifi->ifi_oerrors) 1538 printf(", %llu error%s", 1539 (unsigned long long) ifi->ifi_oerrors, 1540 PLURAL(ifi->ifi_oerrors)); 1541 if (ifi->ifi_collisions) 1542 printf(", %llu collision%s", 1543 (unsigned long long) ifi->ifi_collisions, 1544 PLURAL(ifi->ifi_collisions)); 1545 printf("\n"); 1546 #undef PLURAL 1547 #undef PLURALSTR 1548 } 1549 1550 ieee80211_statistics(); 1551 1552 proto_status: 1553 if ((p = afp) != NULL) { 1554 (*p->af_status)(1); 1555 } else for (p = afs; p->af_name; p++) { 1556 ifr.ifr_addr.sa_family = p->af_af; 1557 (*p->af_status)(0); 1558 } 1559 } 1560 1561 void 1562 setifprefixlen(const char *addr, int d) 1563 { 1564 if (*afp->af_getprefix) 1565 (*afp->af_getprefix)(addr, MASK); 1566 explicit_prefix = 1; 1567 } 1568 1569 void 1570 usage(void) 1571 { 1572 const char *progname = getprogname(); 1573 1574 fprintf(stderr, 1575 "usage: %s [-h] [-m] [-v] [-z] " 1576 #ifdef INET6 1577 "[-L] " 1578 #endif 1579 "interface\n" 1580 "\t[ af [ address [ dest_addr ] ] [ netmask mask ] [ prefixlen n ]\n" 1581 "\t\t[ alias | -alias ] ]\n" 1582 "\t[ up ] [ down ] [ metric n ] [ mtu n ]\n" 1583 "\t[ nwid network_id ] [ nwkey network_key | -nwkey ]\n" 1584 "\t[ powersave | -powersave ] [ powersavesleep duration ]\n" 1585 "\t[ hidessid | -hidessid ] [ apbridge | -apbridge ]\n" 1586 "\t[ [ af ] tunnel src_addr dest_addr ] [ deletetunnel ]\n" 1587 "\t[ arp | -arp ]\n" 1588 "\t[ media type ] [ mediaopt opts ] [ -mediaopt opts ] " 1589 "[ instance minst ]\n" 1590 "\t[ preference n ]\n" 1591 "\t[ vlan n vlanif i ]\n" 1592 "\t[ agrport i ] [ -agrport i ]\n" 1593 "\t[ anycast | -anycast ] [ deprecated | -deprecated ]\n" 1594 "\t[ tentative | -tentative ] [ pltime n ] [ vltime n ] [ eui64 ]\n" 1595 "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n" 1596 " %s -a [-b] [-h] [-m] [-d] [-u] [-v] [-z] [ af ]\n" 1597 " %s -l [-b] [-d] [-u] [-s]\n" 1598 " %s -C\n" 1599 " %s interface create\n" 1600 " %s interface destroy\n", 1601 progname, progname, progname, progname, progname, progname); 1602 exit(1); 1603 } 1604
Indexes created Thu Sep 25 16:09:42 GMT 2025