ifconfig.c revision 1.64
1 /* $NetBSD: ifconfig.c,v 1.64 2000/01/25 01:03:21 thorpej 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. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by the University of 55 * California, Berkeley and its contributors. 56 * 4. Neither the name of the University nor the names of its contributors 57 * may be used to endorse or promote products derived from this software 58 * without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 70 * SUCH DAMAGE. 71 */ 72 73 #include <sys/cdefs.h> 74 #ifndef lint 75 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 76 The Regents of the University of California. All rights reserved.\n"); 77 #endif /* not lint */ 78 79 #ifndef lint 80 #if 0 81 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; 82 #else 83 __RCSID("$NetBSD: ifconfig.c,v 1.64 2000/01/25 01:03:21 thorpej Exp $"); 84 #endif 85 #endif /* not lint */ 86 87 #include <sys/param.h> 88 #include <sys/socket.h> 89 #include <sys/ioctl.h> 90 91 #include <net/if.h> 92 #include <net/if_dl.h> 93 #include <net/if_media.h> 94 #include <net/if_ether.h> 95 #include <net/if_ieee80211.h> 96 #include <netinet/in.h> 97 #include <netinet/in_var.h> 98 #ifdef INET6 99 #include <netinet6/nd6.h> 100 #endif 101 #include <arpa/inet.h> 102 103 #include <netatalk/at.h> 104 105 #define NSIP 106 #include <netns/ns.h> 107 #include <netns/ns_if.h> 108 #include <netdb.h> 109 110 #define EON 111 #include <netiso/iso.h> 112 #include <netiso/iso_var.h> 113 #include <sys/protosw.h> 114 115 #include <ctype.h> 116 #include <err.h> 117 #include <errno.h> 118 #include <stddef.h> 119 #include <stdio.h> 120 #include <stdlib.h> 121 #include <string.h> 122 #include <unistd.h> 123 124 struct ifreq ifr, ridreq; 125 struct ifaliasreq addreq __attribute__((aligned(4))); 126 #ifdef INET6 127 struct in6_ifreq ifr6; 128 struct in6_ifreq in6_ridreq; 129 struct in6_aliasreq in6_addreq __attribute__((aligned(4))); 130 #endif 131 struct iso_ifreq iso_ridreq; 132 struct iso_aliasreq iso_addreq; 133 struct sockaddr_in netmask; 134 struct netrange at_nr; /* AppleTalk net range */ 135 136 char name[30]; 137 int flags, metric, mtu, setaddr, setipdst, doalias; 138 int clearaddr, s; 139 int newaddr = -1; 140 int nsellength = 1; 141 int af; 142 int Aflag, aflag, bflag, dflag, lflag, mflag, sflag, uflag; 143 #ifdef INET6 144 int Lflag; 145 #endif 146 int reset_if_flags; 147 int explicit_prefix = 0; 148 149 void notealias __P((char *, int)); 150 void notrailers __P((char *, int)); 151 void setifaddr __P((char *, int)); 152 void setifdstaddr __P((char *, int)); 153 void setifflags __P((char *, int)); 154 void setifbroadaddr __P((char *, int)); 155 void setifipdst __P((char *, int)); 156 void setifmetric __P((char *, int)); 157 void setifmtu __P((char *, int)); 158 void setifnwid __P((char *, int)); 159 void setifnetmask __P((char *, int)); 160 void setifprefixlen __P((char *, int)); 161 void setnsellength __P((char *, int)); 162 void setsnpaoffset __P((char *, int)); 163 void setatrange __P((char *, int)); 164 void setatphase __P((char *, int)); 165 #ifdef INET6 166 void setia6flags __P((char *, int)); 167 void setia6pltime __P((char *, int)); 168 void setia6vltime __P((char *, int)); 169 void setia6lifetime __P((char *, char *)); 170 #endif 171 void checkatrange __P ((struct sockaddr_at *)); 172 void setmedia __P((char *, int)); 173 void setmediaopt __P((char *, int)); 174 void unsetmediaopt __P((char *, int)); 175 void setmediainst __P((char *, int)); 176 void fixnsel __P((struct sockaddr_iso *)); 177 int main __P((int, char *[])); 178 179 /* 180 * Media stuff. Whenever a media command is first performed, the 181 * currently select media is grabbed for this interface. If `media' 182 * is given, the current media word is modifed. `mediaopt' commands 183 * only modify the set and clear words. They then operate on the 184 * current media word later. 185 */ 186 int media_current; 187 int mediaopt_set; 188 int mediaopt_clear; 189 190 int actions; /* Actions performed */ 191 192 #define A_MEDIA 0x0001 /* media command */ 193 #define A_MEDIAOPTSET 0x0002 /* mediaopt command */ 194 #define A_MEDIAOPTCLR 0x0004 /* -mediaopt command */ 195 #define A_MEDIAOPT (A_MEDIAOPTSET|A_MEDIAOPTCLR) 196 #define A_MEDIAINST 0x0008 /* instance or inst command */ 197 198 #define NEXTARG 0xffffff 199 200 struct cmd { 201 char *c_name; 202 int c_parameter; /* NEXTARG means next argv */ 203 int c_action; /* defered action */ 204 void (*c_func) __P((char *, int)); 205 } cmds[] = { 206 { "up", IFF_UP, 0, setifflags } , 207 { "down", -IFF_UP, 0, setifflags }, 208 { "trailers", -1, 0, notrailers }, 209 { "-trailers", 1, 0, notrailers }, 210 { "arp", -IFF_NOARP, 0, setifflags }, 211 { "-arp", IFF_NOARP, 0, setifflags }, 212 { "debug", IFF_DEBUG, 0, setifflags }, 213 { "-debug", -IFF_DEBUG, 0, setifflags }, 214 { "alias", IFF_UP, 0, notealias }, 215 { "-alias", -IFF_UP, 0, notealias }, 216 { "delete", -IFF_UP, 0, notealias }, 217 #ifdef notdef 218 #define EN_SWABIPS 0x1000 219 { "swabips", EN_SWABIPS, 0, setifflags }, 220 { "-swabips", -EN_SWABIPS, 0, setifflags }, 221 #endif 222 { "netmask", NEXTARG, 0, setifnetmask }, 223 { "metric", NEXTARG, 0, setifmetric }, 224 { "mtu", NEXTARG, 0, setifmtu }, 225 { "nwid", NEXTARG, 0, setifnwid }, 226 { "broadcast", NEXTARG, 0, setifbroadaddr }, 227 { "ipdst", NEXTARG, 0, setifipdst }, 228 { "prefixlen", NEXTARG, 0, setifprefixlen}, 229 #ifdef INET6 230 { "anycast", IN6_IFF_ANYCAST, 0, setia6flags }, 231 { "-anycast", -IN6_IFF_ANYCAST, 0, setia6flags }, 232 { "tentative", IN6_IFF_TENTATIVE, 0, setia6flags }, 233 { "-tentative", -IN6_IFF_TENTATIVE, 0, setia6flags }, 234 { "pltime", NEXTARG, 0, setia6pltime }, 235 { "vltime", NEXTARG, 0, setia6vltime }, 236 #endif /*INET6*/ 237 #ifndef INET_ONLY 238 { "range", NEXTARG, 0, setatrange }, 239 { "phase", NEXTARG, 0, setatphase }, 240 { "snpaoffset", NEXTARG, 0, setsnpaoffset }, 241 { "nsellength", NEXTARG, 0, setnsellength }, 242 #endif /* INET_ONLY */ 243 { "link0", IFF_LINK0, 0, setifflags } , 244 { "-link0", -IFF_LINK0, 0, setifflags } , 245 { "link1", IFF_LINK1, 0, setifflags } , 246 { "-link1", -IFF_LINK1, 0, setifflags } , 247 { "link2", IFF_LINK2, 0, setifflags } , 248 { "-link2", -IFF_LINK2, 0, setifflags } , 249 { "media", NEXTARG, A_MEDIA, setmedia }, 250 { "mediaopt", NEXTARG, A_MEDIAOPTSET, setmediaopt }, 251 { "-mediaopt", NEXTARG, A_MEDIAOPTCLR, unsetmediaopt }, 252 { "instance", NEXTARG, A_MEDIAINST, setmediainst }, 253 { "inst", NEXTARG, A_MEDIAINST, setmediainst }, 254 { 0, 0, 0, setifaddr }, 255 { 0, 0, 0, setifdstaddr }, 256 }; 257 258 void adjust_nsellength __P((void)); 259 int getinfo __P((struct ifreq *)); 260 int carrier __P((void)); 261 void getsock __P((int)); 262 void printall __P((void)); 263 void printalias __P((const char *, int)); 264 void printb __P((char *, unsigned short, char *)); 265 int prefix __P((void *, int)); 266 void status __P((const u_int8_t *, int)); 267 void usage __P((void)); 268 char *sec2str __P((time_t)); 269 270 const char *get_media_type_string __P((int)); 271 const char *get_media_subtype_string __P((int)); 272 int get_media_subtype __P((int, const char *)); 273 int get_media_options __P((int, const char *)); 274 int lookup_media_word __P((struct ifmedia_description *, int, 275 const char *)); 276 void print_media_word __P((int, int, int)); 277 void process_media_commands __P((void)); 278 void init_current_media __P((void)); 279 280 /* 281 * XNS support liberally adapted from code written at the University of 282 * Maryland principally by James O'Toole and Chris Torek. 283 */ 284 void in_alias __P((struct ifreq *)); 285 void in_status __P((int)); 286 void in_getaddr __P((char *, int)); 287 #ifdef INET6 288 void in6_fillscopeid __P((struct sockaddr_in6 *sin6)); 289 void in6_alias __P((struct in6_ifreq *)); 290 void in6_status __P((int)); 291 void in6_getaddr __P((char *, int)); 292 void in6_getprefix __P((char *, int)); 293 #endif 294 void at_status __P((int)); 295 void at_getaddr __P((char *, int)); 296 void xns_status __P((int)); 297 void xns_getaddr __P((char *, int)); 298 void iso_status __P((int)); 299 void iso_getaddr __P((char *, int)); 300 void ieee80211_status __P((void)); 301 302 /* Known address families */ 303 struct afswtch { 304 char *af_name; 305 short af_af; 306 void (*af_status) __P((int)); 307 void (*af_getaddr) __P((char *, int)); 308 void (*af_getprefix) __P((char *, int)); 309 u_long af_difaddr; 310 u_long af_aifaddr; 311 caddr_t af_ridreq; 312 caddr_t af_addreq; 313 } afs[] = { 314 #define C(x) ((caddr_t) &x) 315 { "inet", AF_INET, in_status, in_getaddr, NULL, 316 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, 317 #ifdef INET6 318 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix, 319 SIOCDIFADDR_IN6, SIOCAIFADDR_IN6, C(in6_ridreq), C(in6_addreq) }, 320 #endif 321 #ifndef INET_ONLY /* small version, for boot media */ 322 { "atalk", AF_APPLETALK, at_status, at_getaddr, NULL, 323 SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) }, 324 { "ns", AF_NS, xns_status, xns_getaddr, NULL, 325 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, 326 { "iso", AF_ISO, iso_status, iso_getaddr, NULL, 327 SIOCDIFADDR_ISO, SIOCAIFADDR_ISO, C(iso_ridreq), C(iso_addreq) }, 328 #endif /* INET_ONLY */ 329 { 0, 0, 0, 0 } 330 }; 331 332 struct afswtch *afp; /*the address family being set or asked about*/ 333 334 struct afswtch *lookup_af __P((const char *)); 335 336 int 337 main(argc, argv) 338 int argc; 339 char *argv[]; 340 { 341 int ch; 342 343 /* Parse command-line options */ 344 aflag = mflag = 0; 345 while ((ch = getopt(argc, argv, "Aabdlmsu" 346 #ifdef INET6 347 "L" 348 #endif 349 )) != -1) { 350 switch (ch) { 351 case 'A': 352 Aflag = 1; 353 break; 354 355 case 'a': 356 aflag = 1; 357 break; 358 359 case 'b': 360 bflag = 1; 361 break; 362 363 case 'd': 364 dflag = 1; 365 break; 366 367 #ifdef INET6 368 case 'L': 369 Lflag = 1; 370 break; 371 #endif 372 373 case 'l': 374 lflag = 1; 375 break; 376 377 case 'm': 378 mflag = 1; 379 break; 380 381 case 's': 382 sflag = 1; 383 break; 384 385 case 'u': 386 uflag = 1; 387 break; 388 389 390 default: 391 usage(); 392 /* NOTREACHED */ 393 } 394 } 395 argc -= optind; 396 argv += optind; 397 398 /* 399 * -l means "list all interfaces", and is mutally exclusive with 400 * all other flags/commands. 401 * 402 * -a means "print status of all interfaces". 403 */ 404 if (lflag && (aflag || mflag || Aflag || argc)) 405 usage(); 406 #ifdef INET6 407 if (lflag && Lflag) 408 usage(); 409 #endif 410 if (aflag || lflag) { 411 if (argc > 1) 412 usage(); 413 else if (argc == 1) { 414 afp = lookup_af(argv[0]); 415 if (afp == NULL) 416 usage(); 417 } 418 if (afp) 419 af = ifr.ifr_addr.sa_family = afp->af_af; 420 else 421 af = ifr.ifr_addr.sa_family = afs[0].af_af; 422 printall(); 423 exit(0); 424 } 425 426 /* Make sure there's an interface name. */ 427 if (argc < 1) 428 usage(); 429 (void) strncpy(name, argv[0], sizeof(name)); 430 argc--; argv++; 431 432 /* Check for address family. */ 433 afp = NULL; 434 if (argc > 0) { 435 afp = lookup_af(argv[0]); 436 if (afp != NULL) { 437 argv++; 438 argc--; 439 } 440 } 441 442 /* Initialize af, just for use in getinfo(). */ 443 if (afp == NULL) 444 af = afs->af_af; 445 else 446 af = afp->af_af; 447 448 /* Get information about the interface. */ 449 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 450 if (getinfo(&ifr) < 0) 451 exit(1); 452 453 if (sflag) { 454 if (argc != 0) 455 usage(); 456 else 457 exit(carrier()); 458 } 459 460 /* No more arguments means interface status. */ 461 if (argc == 0) { 462 status(NULL, 0); 463 exit(0); 464 } 465 466 /* following operations assume inet familiy as default */ 467 if (afp == NULL) 468 afp = afs; 469 af = ifr.ifr_addr.sa_family = afp->af_af; 470 471 #ifdef INET6 472 /* initialization */ 473 in6_addreq.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME; 474 in6_addreq.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME; 475 #endif 476 477 /* Process commands. */ 478 while (argc > 0) { 479 struct cmd *p; 480 481 for (p = cmds; p->c_name; p++) 482 if (strcmp(argv[0], p->c_name) == 0) 483 break; 484 if (p->c_name == 0 && setaddr) { 485 if ((flags & IFF_POINTOPOINT) == 0) { 486 errx(1, "can't set destination address %s", 487 "on non-point-to-point link"); 488 } 489 p++; /* got src, do dst */ 490 } 491 if (p->c_func) { 492 if (p->c_parameter == NEXTARG) { 493 if (argc < 2) 494 errx(1, "'%s' requires argument", 495 p->c_name); 496 (*p->c_func)(argv[1], 0); 497 argc--, argv++; 498 } else 499 (*p->c_func)(argv[0], p->c_parameter); 500 actions |= p->c_action; 501 } 502 argc--, argv++; 503 } 504 505 /* Process any media commands that may have been issued. */ 506 process_media_commands(); 507 508 if (af == AF_INET6 && explicit_prefix == 0) { 509 /* 510 * Aggregatable address architecture defines all prefixes 511 * are 64. So, it is convenient to set prefixlen to 64 if 512 * it is not specified. 513 */ 514 setifprefixlen("64", 0); 515 /* in6_getprefix("64", MASK) if MASK is available here... */ 516 } 517 518 #ifndef INET_ONLY 519 if (af == AF_ISO) 520 adjust_nsellength(); 521 522 if (af == AF_APPLETALK) 523 checkatrange((struct sockaddr_at *) &addreq.ifra_addr); 524 525 if (setipdst && af==AF_NS) { 526 struct nsip_req rq; 527 int size = sizeof(rq); 528 529 rq.rq_ns = addreq.ifra_addr; 530 rq.rq_ip = addreq.ifra_dstaddr; 531 532 if (setsockopt(s, 0, SO_NSIP_ROUTE, &rq, size) < 0) 533 warn("encapsulation routing"); 534 } 535 536 #endif /* INET_ONLY */ 537 538 if (clearaddr) { 539 int ret; 540 (void) strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name); 541 if ((ret = ioctl(s, afp->af_difaddr, afp->af_ridreq)) < 0) { 542 if (errno == EADDRNOTAVAIL && (doalias >= 0)) { 543 /* means no previous address for interface */ 544 } else 545 warn("SIOCDIFADDR"); 546 } 547 } 548 if (newaddr > 0) { 549 (void) strncpy(afp->af_addreq, name, sizeof ifr.ifr_name); 550 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0) 551 warn("SIOCAIFADDR"); 552 } 553 if (reset_if_flags && ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0) 554 err(1, "SIOCSIFFLAGS"); 555 exit(0); 556 } 557 558 struct afswtch * 559 lookup_af(cp) 560 const char *cp; 561 { 562 struct afswtch *a; 563 564 for (a = afs; a->af_name != NULL; a++) 565 if (strcmp(a->af_name, cp) == 0) 566 return (a); 567 return (NULL); 568 } 569 570 void 571 getsock(naf) 572 int naf; 573 { 574 static int oaf = -1; 575 576 if (oaf == naf) 577 return; 578 if (oaf != -1) 579 close(s); 580 s = socket(naf, SOCK_DGRAM, 0); 581 if (s < 0) 582 oaf = -1; 583 else 584 oaf = naf; 585 } 586 587 int 588 getinfo(ifr) 589 struct ifreq *ifr; 590 { 591 592 getsock(af); 593 if (s < 0) 594 err(1, "socket"); 595 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)ifr) < 0) { 596 warn("SIOCGIFFLAGS %s", ifr->ifr_name); 597 return (-1); 598 } 599 flags = ifr->ifr_flags; 600 if (ioctl(s, SIOCGIFMETRIC, (caddr_t)ifr) < 0) { 601 warn("SIOCGIFMETRIC %s", ifr->ifr_name); 602 metric = 0; 603 } else 604 metric = ifr->ifr_metric; 605 if (ioctl(s, SIOCGIFMTU, (caddr_t)ifr) < 0) 606 mtu = 0; 607 else 608 mtu = ifr->ifr_mtu; 609 return (0); 610 } 611 612 void 613 printalias(iname, af) 614 const char *iname; 615 int af; 616 { 617 char inbuf[8192]; 618 struct ifconf ifc; 619 struct ifreq *ifr; 620 int i, siz; 621 char ifrbuf[8192]; 622 623 ifc.ifc_len = sizeof(inbuf); 624 ifc.ifc_buf = inbuf; 625 getsock(af); 626 if (s < 0) 627 err(1, "socket"); 628 if (ioctl(s, SIOCGIFCONF, &ifc) < 0) 629 err(1, "SIOCGIFCONF"); 630 ifr = ifc.ifc_req; 631 for (i = 0; i < ifc.ifc_len; ) { 632 ifr = (struct ifreq *)((caddr_t)ifc.ifc_req + i); 633 siz = sizeof(ifr->ifr_name) + 634 (ifr->ifr_addr.sa_len > sizeof(struct sockaddr) 635 ? ifr->ifr_addr.sa_len 636 : sizeof(struct sockaddr)); 637 i += siz; 638 /* avoid alignment issue */ 639 if (sizeof(ifrbuf) < siz) 640 errx(1, "ifr too big"); 641 memcpy(ifrbuf, ifr, siz); 642 ifr = (struct ifreq *)ifrbuf; 643 if (!strncmp(iname, ifr->ifr_name, sizeof(ifr->ifr_name))) { 644 if (ifr->ifr_addr.sa_family == af) 645 switch (af) { 646 case AF_INET: 647 in_alias(ifr); 648 break; 649 default: 650 /*none*/ 651 } 652 continue; 653 } 654 } 655 } 656 657 void 658 printall() 659 { 660 char inbuf[8192]; 661 const struct sockaddr_dl *sdl = NULL; 662 struct ifconf ifc; 663 struct ifreq ifreq, *ifr; 664 int i, siz, idx; 665 char ifrbuf[8192]; 666 667 ifc.ifc_len = sizeof(inbuf); 668 ifc.ifc_buf = inbuf; 669 getsock(af); 670 if (s < 0) 671 err(1, "socket"); 672 if (ioctl(s, SIOCGIFCONF, &ifc) < 0) 673 err(1, "SIOCGIFCONF"); 674 ifr = ifc.ifc_req; 675 ifreq.ifr_name[0] = '\0'; 676 for (i = 0, idx = 0; i < ifc.ifc_len; ) { 677 ifr = (struct ifreq *)((caddr_t)ifc.ifc_req + i); 678 siz = sizeof(ifr->ifr_name) + 679 (ifr->ifr_addr.sa_len > sizeof(struct sockaddr) 680 ? ifr->ifr_addr.sa_len 681 : sizeof(struct sockaddr)); 682 i += siz; 683 /* avoid alignment issue */ 684 if (sizeof(ifrbuf) < siz) 685 errx(1, "ifr too big"); 686 memcpy(ifrbuf, ifr, siz); 687 ifr = (struct ifreq *)ifrbuf; 688 if (ifr->ifr_addr.sa_family == AF_LINK) 689 sdl = (const struct sockaddr_dl *) &ifr->ifr_addr; 690 if (!strncmp(ifreq.ifr_name, ifr->ifr_name, 691 sizeof(ifr->ifr_name))) { 692 if (Aflag && ifr->ifr_addr.sa_family == AF_INET) 693 in_alias(ifr); 694 continue; 695 } 696 (void) strncpy(name, ifr->ifr_name, sizeof(ifr->ifr_name)); 697 ifreq = *ifr; 698 699 if (getinfo(&ifreq) < 0) 700 continue; 701 if (bflag && (flags & (IFF_POINTOPOINT|IFF_LOOPBACK))) 702 continue; 703 if (dflag && (flags & IFF_UP) != 0) 704 continue; 705 if (uflag && (flags & IFF_UP) == 0) 706 continue; 707 708 if (sflag && carrier()) 709 continue; 710 idx++; 711 /* 712 * Are we just listing the interfaces? 713 */ 714 if (lflag) { 715 if (idx > 1) 716 putchar(' '); 717 fputs(name, stdout); 718 continue; 719 } 720 721 if (sdl == NULL) { 722 status(NULL, 0); 723 } else { 724 status(LLADDR(sdl), sdl->sdl_alen); 725 sdl = NULL; 726 } 727 } 728 if (lflag) 729 putchar('\n'); 730 } 731 732 #define RIDADDR 0 733 #define ADDR 1 734 #define MASK 2 735 #define DSTADDR 3 736 737 /*ARGSUSED*/ 738 void 739 setifaddr(addr, param) 740 char *addr; 741 int param; 742 { 743 /* 744 * Delay the ioctl to set the interface addr until flags are all set. 745 * The address interpretation may depend on the flags, 746 * and the flags may change when the address is set. 747 */ 748 setaddr++; 749 if (newaddr == -1) 750 newaddr = 1; 751 if (doalias == 0) 752 clearaddr = 1; 753 (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR)); 754 } 755 756 void 757 setifnetmask(addr, d) 758 char *addr; 759 int d; 760 { 761 (*afp->af_getaddr)(addr, MASK); 762 } 763 764 void 765 setifbroadaddr(addr, d) 766 char *addr; 767 int d; 768 { 769 (*afp->af_getaddr)(addr, DSTADDR); 770 } 771 772 void 773 setifipdst(addr, d) 774 char *addr; 775 int d; 776 { 777 in_getaddr(addr, DSTADDR); 778 setipdst++; 779 clearaddr = 0; 780 newaddr = 0; 781 } 782 783 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) 784 /*ARGSUSED*/ 785 void 786 notealias(addr, param) 787 char *addr; 788 int param; 789 { 790 if (setaddr && doalias == 0 && param < 0) 791 (void) memcpy(rqtosa(af_ridreq), rqtosa(af_addreq), 792 rqtosa(af_addreq)->sa_len); 793 doalias = param; 794 if (param < 0) { 795 clearaddr = 1; 796 newaddr = 0; 797 } else 798 clearaddr = 0; 799 } 800 801 /*ARGSUSED*/ 802 void 803 notrailers(vname, value) 804 char *vname; 805 int value; 806 { 807 puts("Note: trailers are no longer sent, but always received"); 808 } 809 810 /*ARGSUSED*/ 811 void 812 setifdstaddr(addr, param) 813 char *addr; 814 int param; 815 { 816 (*afp->af_getaddr)(addr, DSTADDR); 817 } 818 819 void 820 setifflags(vname, value) 821 char *vname; 822 int value; 823 { 824 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) 825 err(1, "SIOCGIFFLAGS"); 826 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 827 flags = ifr.ifr_flags; 828 829 if (value < 0) { 830 value = -value; 831 flags &= ~value; 832 } else 833 flags |= value; 834 ifr.ifr_flags = flags; 835 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&ifr) < 0) 836 err(1, "SIOCSIFFLAGS"); 837 838 reset_if_flags = 1; 839 } 840 841 #ifdef INET6 842 void 843 setia6flags(vname, value) 844 char *vname; 845 int value; 846 { 847 if (value < 0) { 848 value = -value; 849 in6_addreq.ifra_flags &= ~value; 850 } else 851 in6_addreq.ifra_flags |= value; 852 } 853 854 void 855 setia6pltime(val, d) 856 char *val; 857 int d; 858 { 859 setia6lifetime("pltime", val); 860 } 861 862 void 863 setia6vltime(val, d) 864 char *val; 865 int d; 866 { 867 setia6lifetime("vltime", val); 868 } 869 870 void 871 setia6lifetime(cmd, val) 872 char *cmd; 873 char *val; 874 { 875 time_t newval, t; 876 char *ep; 877 878 t = time(NULL); 879 newval = (time_t)strtoul(val, &ep, 0); 880 if (val == ep) 881 errx(1, "invalid %s", cmd); 882 if (afp->af_af != AF_INET6) 883 errx(1, "%s not allowed for the AF", cmd); 884 if (strcmp(cmd, "vltime") == 0) { 885 in6_addreq.ifra_lifetime.ia6t_expire = t + newval; 886 in6_addreq.ifra_lifetime.ia6t_vltime = newval; 887 } else if (strcmp(cmd, "pltime") == 0) { 888 in6_addreq.ifra_lifetime.ia6t_preferred = t + newval; 889 in6_addreq.ifra_lifetime.ia6t_pltime = newval; 890 } 891 } 892 #endif 893 894 void 895 setifmetric(val, d) 896 char *val; 897 int d; 898 { 899 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 900 ifr.ifr_metric = atoi(val); 901 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0) 902 warn("SIOCSIFMETRIC"); 903 } 904 905 void 906 setifmtu(val, d) 907 char *val; 908 int d; 909 { 910 (void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 911 ifr.ifr_mtu = atoi(val); 912 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0) 913 warn("SIOCSIFMTU"); 914 } 915 916 void 917 setifnwid(val, d) 918 char *val; 919 int d; 920 { 921 u_int8_t nwid[IEEE80211_NWID_LEN]; 922 923 memset(&nwid, 0, sizeof(nwid)); 924 (void)strncpy(nwid, val, sizeof(nwid)); 925 (void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 926 ifr.ifr_data = (caddr_t)nwid; 927 if (ioctl(s, SIOCS80211NWID, (caddr_t)&ifr) < 0) 928 warn("SIOCS80211NWID"); 929 } 930 931 void 932 ieee80211_status() 933 { 934 u_int8_t nwid[IEEE80211_NWID_LEN + 1]; 935 936 memset(&ifr, 0, sizeof(ifr)); 937 ifr.ifr_data = (caddr_t)nwid; 938 (void)strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 939 nwid[IEEE80211_NWID_LEN] = 0; 940 if (ioctl(s, SIOCG80211NWID, (caddr_t)&ifr) == 0) 941 printf("\tnwid %s\n", nwid); 942 } 943 944 void 945 init_current_media() 946 { 947 struct ifmediareq ifmr; 948 949 /* 950 * If we have not yet done so, grab the currently-selected 951 * media. 952 */ 953 if ((actions & (A_MEDIA|A_MEDIAOPT)) == 0) { 954 (void) memset(&ifmr, 0, sizeof(ifmr)); 955 (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); 956 957 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { 958 /* 959 * If we get E2BIG, the kernel is telling us 960 * that there are more, so we can ignore it. 961 */ 962 if (errno != E2BIG) 963 err(1, "SGIOCGIFMEDIA"); 964 } 965 966 media_current = ifmr.ifm_current; 967 } 968 969 /* Sanity. */ 970 if (IFM_TYPE(media_current) == 0) 971 errx(1, "%s: no link type?", name); 972 } 973 974 void 975 process_media_commands() 976 { 977 978 if ((actions & (A_MEDIA|A_MEDIAOPT)) == 0) { 979 /* Nothing to do. */ 980 return; 981 } 982 983 /* 984 * Media already set up, and commands sanity-checked. Set/clear 985 * any options, and we're ready to go. 986 */ 987 media_current |= mediaopt_set; 988 media_current &= ~mediaopt_clear; 989 990 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 991 ifr.ifr_media = media_current; 992 993 if (ioctl(s, SIOCSIFMEDIA, (caddr_t)&ifr) < 0) 994 err(1, "SIOCSIFMEDIA"); 995 } 996 997 void 998 setmedia(val, d) 999 char *val; 1000 int d; 1001 { 1002 int type, subtype, inst; 1003 1004 init_current_media(); 1005 1006 /* Only one media command may be given. */ 1007 if (actions & A_MEDIA) 1008 errx(1, "only one `media' command may be issued"); 1009 1010 /* Must not come after mediaopt commands */ 1011 if (actions & A_MEDIAOPT) 1012 errx(1, "may not issue `media' after `mediaopt' commands"); 1013 1014 /* 1015 * No need to check if `instance' has been issued; setmediainst() 1016 * craps out if `media' has not been specified. 1017 */ 1018 1019 type = IFM_TYPE(media_current); 1020 inst = IFM_INST(media_current); 1021 1022 /* Look up the subtype. */ 1023 subtype = get_media_subtype(type, val); 1024 1025 /* Build the new current media word. */ 1026 media_current = IFM_MAKEWORD(type, subtype, 0, inst); 1027 1028 /* Media will be set after other processing is complete. */ 1029 } 1030 1031 void 1032 setmediaopt(val, d) 1033 char *val; 1034 int d; 1035 { 1036 1037 init_current_media(); 1038 1039 /* Can only issue `mediaopt' once. */ 1040 if (actions & A_MEDIAOPTSET) 1041 errx(1, "only one `mediaopt' command may be issued"); 1042 1043 /* Can't issue `mediaopt' if `instance' has already been issued. */ 1044 if (actions & A_MEDIAINST) 1045 errx(1, "may not issue `mediaopt' after `instance'"); 1046 1047 mediaopt_set = get_media_options(IFM_TYPE(media_current), val); 1048 1049 /* Media will be set after other processing is complete. */ 1050 } 1051 1052 void 1053 unsetmediaopt(val, d) 1054 char *val; 1055 int d; 1056 { 1057 1058 init_current_media(); 1059 1060 /* Can only issue `-mediaopt' once. */ 1061 if (actions & A_MEDIAOPTCLR) 1062 errx(1, "only one `-mediaopt' command may be issued"); 1063 1064 /* May not issue `media' and `-mediaopt'. */ 1065 if (actions & A_MEDIA) 1066 errx(1, "may not issue both `media' and `-mediaopt'"); 1067 1068 /* 1069 * No need to check for A_MEDIAINST, since the test for A_MEDIA 1070 * implicitly checks for A_MEDIAINST. 1071 */ 1072 1073 mediaopt_clear = get_media_options(IFM_TYPE(media_current), val); 1074 1075 /* Media will be set after other processing is complete. */ 1076 } 1077 1078 void 1079 setmediainst(val, d) 1080 char *val; 1081 int d; 1082 { 1083 int type, subtype, options, inst; 1084 1085 init_current_media(); 1086 1087 /* Can only issue `instance' once. */ 1088 if (actions & A_MEDIAINST) 1089 errx(1, "only one `instance' command may be issued"); 1090 1091 /* Must have already specified `media' */ 1092 if ((actions & A_MEDIA) == 0) 1093 errx(1, "must specify `media' before `instance'"); 1094 1095 type = IFM_TYPE(media_current); 1096 subtype = IFM_SUBTYPE(media_current); 1097 options = IFM_OPTIONS(media_current); 1098 1099 inst = atoi(val); 1100 if (inst < 0 || inst > IFM_INST_MAX) 1101 errx(1, "invalid media instance: %s", val); 1102 1103 media_current = IFM_MAKEWORD(type, subtype, options, inst); 1104 1105 /* Media will be set after other processing is complete. */ 1106 } 1107 1108 struct ifmedia_description ifm_type_descriptions[] = 1109 IFM_TYPE_DESCRIPTIONS; 1110 1111 struct ifmedia_description ifm_subtype_descriptions[] = 1112 IFM_SUBTYPE_DESCRIPTIONS; 1113 1114 struct ifmedia_description ifm_option_descriptions[] = 1115 IFM_OPTION_DESCRIPTIONS; 1116 1117 const char * 1118 get_media_type_string(mword) 1119 int mword; 1120 { 1121 struct ifmedia_description *desc; 1122 1123 for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; 1124 desc++) { 1125 if (IFM_TYPE(mword) == desc->ifmt_word) 1126 return (desc->ifmt_string); 1127 } 1128 return ("<unknown type>"); 1129 } 1130 1131 const char * 1132 get_media_subtype_string(mword) 1133 int mword; 1134 { 1135 struct ifmedia_description *desc; 1136 1137 for (desc = ifm_subtype_descriptions; desc->ifmt_string != NULL; 1138 desc++) { 1139 if (IFM_TYPE_MATCH(desc->ifmt_word, mword) && 1140 IFM_SUBTYPE(desc->ifmt_word) == IFM_SUBTYPE(mword)) 1141 return (desc->ifmt_string); 1142 } 1143 return ("<unknown subtype>"); 1144 } 1145 1146 int 1147 get_media_subtype(type, val) 1148 int type; 1149 const char *val; 1150 { 1151 int rval; 1152 1153 rval = lookup_media_word(ifm_subtype_descriptions, type, val); 1154 if (rval == -1) 1155 errx(1, "unknown %s media subtype: %s", 1156 get_media_type_string(type), val); 1157 1158 return (rval); 1159 } 1160 1161 int 1162 get_media_options(type, val) 1163 int type; 1164 const char *val; 1165 { 1166 char *optlist, *str; 1167 int option, rval = 0; 1168 1169 /* We muck with the string, so copy it. */ 1170 optlist = strdup(val); 1171 if (optlist == NULL) 1172 err(1, "strdup"); 1173 str = optlist; 1174 1175 /* 1176 * Look up the options in the user-provided comma-separated list. 1177 */ 1178 for (; (str = strtok(str, ",")) != NULL; str = NULL) { 1179 option = lookup_media_word(ifm_option_descriptions, type, str); 1180 if (option == -1) 1181 errx(1, "unknown %s media option: %s", 1182 get_media_type_string(type), str); 1183 rval |= IFM_OPTIONS(option); 1184 } 1185 1186 free(optlist); 1187 return (rval); 1188 } 1189 1190 int 1191 lookup_media_word(desc, type, val) 1192 struct ifmedia_description *desc; 1193 int type; 1194 const char *val; 1195 { 1196 1197 for (; desc->ifmt_string != NULL; desc++) { 1198 if (IFM_TYPE_MATCH(desc->ifmt_word, type) && 1199 strcasecmp(desc->ifmt_string, val) == 0) 1200 return (desc->ifmt_word); 1201 } 1202 return (-1); 1203 } 1204 1205 void 1206 print_media_word(ifmw, print_type, as_syntax) 1207 int ifmw, print_type, as_syntax; 1208 { 1209 struct ifmedia_description *desc; 1210 int seen_option = 0; 1211 1212 if (print_type) 1213 printf("%s ", get_media_type_string(ifmw)); 1214 printf("%s%s", as_syntax ? "media " : "", 1215 get_media_subtype_string(ifmw)); 1216 1217 /* Find options. */ 1218 for (desc = ifm_option_descriptions; desc->ifmt_string != NULL; 1219 desc++) { 1220 if (IFM_TYPE_MATCH(desc->ifmt_word, ifmw) && 1221 (ifmw & desc->ifmt_word) != 0 && 1222 (seen_option & IFM_OPTIONS(desc->ifmt_word)) == 0) { 1223 if (seen_option == 0) 1224 printf(" %s", as_syntax ? "mediaopt " : ""); 1225 printf("%s%s", seen_option ? "," : "", 1226 desc->ifmt_string); 1227 seen_option |= IFM_OPTIONS(desc->ifmt_word); 1228 } 1229 } 1230 if (IFM_INST(ifmw) != 0) 1231 printf(" instance %d", IFM_INST(ifmw)); 1232 } 1233 1234 int carrier() 1235 { 1236 struct ifmediareq ifmr; 1237 1238 (void) memset(&ifmr, 0, sizeof(ifmr)); 1239 (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); 1240 1241 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { 1242 /* 1243 * Interface doesn't support SIOC{G,S}IFMEDIA; 1244 * assume ok. 1245 */ 1246 return 0; 1247 } 1248 if ((ifmr.ifm_status & IFM_AVALID) == 0) { 1249 /* 1250 * Interface doesn't report media-valid status. 1251 * assume ok. 1252 */ 1253 return 0; 1254 } 1255 /* otherwise, return ok for active, not-ok if not active. */ 1256 return !(ifmr.ifm_status & IFM_ACTIVE); 1257 } 1258 1259 1260 #define IFFBITS \ 1261 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\ 1262 \11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST" 1263 1264 const int ifm_status_valid_list[] = IFM_STATUS_VALID_LIST; 1265 1266 const struct ifmedia_status_description ifm_status_descriptions[] = 1267 IFM_STATUS_DESCRIPTIONS; 1268 1269 /* 1270 * Print the status of the interface. If an address family was 1271 * specified, show it and it only; otherwise, show them all. 1272 */ 1273 void 1274 status(ap, alen) 1275 const u_int8_t *ap; 1276 int alen; 1277 { 1278 struct afswtch *p = afp; 1279 struct ifmediareq ifmr; 1280 int *media_list, i; 1281 1282 printf("%s: ", name); 1283 printb("flags", flags, IFFBITS); 1284 if (metric) 1285 printf(" metric %d", metric); 1286 if (mtu) 1287 printf(" mtu %d", mtu); 1288 putchar('\n'); 1289 if (ap && alen > 0) { 1290 printf("\taddress:"); 1291 for (i = 0; i < alen; i++, ap++) 1292 printf("%c%02x", i > 0 ? ':' : ' ', *ap); 1293 putchar('\n'); 1294 } 1295 1296 (void) memset(&ifmr, 0, sizeof(ifmr)); 1297 (void) strncpy(ifmr.ifm_name, name, sizeof(ifmr.ifm_name)); 1298 1299 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) { 1300 /* 1301 * Interface doesn't support SIOC{G,S}IFMEDIA. 1302 */ 1303 goto proto_status; 1304 } 1305 1306 if (ifmr.ifm_count == 0) { 1307 warnx("%s: no media types?", name); 1308 goto proto_status; 1309 } 1310 1311 media_list = (int *)malloc(ifmr.ifm_count * sizeof(int)); 1312 if (media_list == NULL) 1313 err(1, "malloc"); 1314 ifmr.ifm_ulist = media_list; 1315 1316 if (ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmr) < 0) 1317 err(1, "SIOCGIFMEDIA"); 1318 1319 printf("\tmedia: "); 1320 print_media_word(ifmr.ifm_current, 1, 0); 1321 if (ifmr.ifm_active != ifmr.ifm_current) { 1322 putchar(' '); 1323 putchar('('); 1324 print_media_word(ifmr.ifm_active, 0, 0); 1325 putchar(')'); 1326 } 1327 putchar('\n'); 1328 1329 if (ifmr.ifm_status & IFM_STATUS_VALID) { 1330 const struct ifmedia_status_description *ifms; 1331 int bitno, found = 0; 1332 1333 printf("\tstatus: "); 1334 for (bitno = 0; ifm_status_valid_list[bitno] != 0; bitno++) { 1335 for (ifms = ifm_status_descriptions; 1336 ifms->ifms_valid != 0; ifms++) { 1337 if (ifms->ifms_type != 1338 IFM_TYPE(ifmr.ifm_active) && 1339 ifms->ifms_valid != 1340 ifm_status_valid_list[bitno]) 1341 continue; 1342 printf("%s%s", found ? ", " : "", 1343 IFM_STATUS_DESC(ifms, ifmr.ifm_status)); 1344 found = 1; 1345 1346 /* 1347 * For each valid indicator bit, there's 1348 * only one entry for each media type, so 1349 * terminate the inner loop now. 1350 */ 1351 break; 1352 } 1353 } 1354 1355 if (found == 0) 1356 printf("unknown"); 1357 putchar('\n'); 1358 } 1359 1360 if (mflag) { 1361 int type, printed_type; 1362 1363 for (type = IFM_NMIN; type <= IFM_NMAX; type += IFM_NMIN) { 1364 for (i = 0, printed_type = 0; i < ifmr.ifm_count; i++) { 1365 if (IFM_TYPE(media_list[i]) == type) { 1366 if (printed_type == 0) { 1367 printf("\tsupported %s media:\n", 1368 get_media_type_string(type)); 1369 printed_type = 1; 1370 } 1371 printf("\t\t"); 1372 print_media_word(media_list[i], 0, 1); 1373 printf("\n"); 1374 } 1375 } 1376 } 1377 } 1378 1379 free(media_list); 1380 1381 proto_status: 1382 ieee80211_status(); 1383 1384 if ((p = afp) != NULL) { 1385 (*p->af_status)(1); 1386 if (Aflag & !aflag) 1387 printalias(name, p->af_af); 1388 } else for (p = afs; p->af_name; p++) { 1389 ifr.ifr_addr.sa_family = p->af_af; 1390 (*p->af_status)(0); 1391 if (Aflag & !aflag && p->af_af == AF_INET) 1392 printalias(name, p->af_af); 1393 } 1394 } 1395 1396 void 1397 in_alias(creq) 1398 struct ifreq *creq; 1399 { 1400 struct sockaddr_in *sin; 1401 1402 if (lflag) 1403 return; 1404 1405 /* Get the non-alias address for this interface. */ 1406 getsock(AF_INET); 1407 if (s < 0) { 1408 if (errno == EPROTONOSUPPORT) 1409 return; 1410 err(1, "socket"); 1411 } 1412 (void) memset(&ifr, 0, sizeof(ifr)); 1413 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1414 if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { 1415 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { 1416 return; 1417 } else 1418 warn("SIOCGIFADDR"); 1419 } 1420 /* If creq and ifr are the same address, this is not an alias. */ 1421 if (memcmp(&ifr.ifr_addr, &creq->ifr_addr, 1422 sizeof(creq->ifr_addr)) == 0) 1423 return; 1424 (void) memset(&addreq, 0, sizeof(addreq)); 1425 (void) strncpy(addreq.ifra_name, name, sizeof(addreq.ifra_name)); 1426 addreq.ifra_addr = creq->ifr_addr; 1427 if (ioctl(s, SIOCGIFALIAS, (caddr_t)&addreq) < 0) { 1428 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { 1429 return; 1430 } else 1431 warn("SIOCGIFALIAS"); 1432 } 1433 1434 sin = (struct sockaddr_in *)&addreq.ifra_addr; 1435 printf("\tinet alias %s", inet_ntoa(sin->sin_addr)); 1436 1437 if (flags & IFF_POINTOPOINT) { 1438 sin = (struct sockaddr_in *)&addreq.ifra_dstaddr; 1439 printf(" -> %s", inet_ntoa(sin->sin_addr)); 1440 } 1441 1442 sin = (struct sockaddr_in *)&addreq.ifra_mask; 1443 printf(" netmask 0x%x", ntohl(sin->sin_addr.s_addr)); 1444 1445 if (flags & IFF_BROADCAST) { 1446 sin = (struct sockaddr_in *)&addreq.ifra_broadaddr; 1447 printf(" broadcast %s", inet_ntoa(sin->sin_addr)); 1448 } 1449 printf("\n"); 1450 } 1451 1452 void 1453 in_status(force) 1454 int force; 1455 { 1456 struct sockaddr_in *sin; 1457 1458 getsock(AF_INET); 1459 if (s < 0) { 1460 if (errno == EPROTONOSUPPORT) 1461 return; 1462 err(1, "socket"); 1463 } 1464 (void) memset(&ifr, 0, sizeof(ifr)); 1465 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1466 if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { 1467 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { 1468 if (!force) 1469 return; 1470 (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); 1471 } else 1472 warn("SIOCGIFADDR"); 1473 } 1474 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1475 sin = (struct sockaddr_in *)&ifr.ifr_addr; 1476 printf("\tinet %s ", inet_ntoa(sin->sin_addr)); 1477 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1478 if (ioctl(s, SIOCGIFNETMASK, (caddr_t)&ifr) < 0) { 1479 if (errno != EADDRNOTAVAIL) 1480 warn("SIOCGIFNETMASK"); 1481 (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); 1482 } else 1483 netmask.sin_addr = 1484 ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr; 1485 if (flags & IFF_POINTOPOINT) { 1486 if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { 1487 if (errno == EADDRNOTAVAIL) 1488 (void) memset(&ifr.ifr_addr, 0, 1489 sizeof(ifr.ifr_addr)); 1490 else 1491 warn("SIOCGIFDSTADDR"); 1492 } 1493 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1494 sin = (struct sockaddr_in *)&ifr.ifr_dstaddr; 1495 printf("--> %s ", inet_ntoa(sin->sin_addr)); 1496 } 1497 printf("netmask 0x%x ", ntohl(netmask.sin_addr.s_addr)); 1498 if (flags & IFF_BROADCAST) { 1499 if (ioctl(s, SIOCGIFBRDADDR, (caddr_t)&ifr) < 0) { 1500 if (errno == EADDRNOTAVAIL) 1501 (void) memset(&ifr.ifr_addr, 0, 1502 sizeof(ifr.ifr_addr)); 1503 else 1504 warn("SIOCGIFBRDADDR"); 1505 } 1506 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1507 sin = (struct sockaddr_in *)&ifr.ifr_addr; 1508 if (sin->sin_addr.s_addr != 0) 1509 printf("broadcast %s", inet_ntoa(sin->sin_addr)); 1510 } 1511 putchar('\n'); 1512 } 1513 1514 void 1515 setifprefixlen(addr, d) 1516 char *addr; 1517 int d; 1518 { 1519 if (*afp->af_getprefix) 1520 (*afp->af_getprefix)(addr, MASK); 1521 explicit_prefix = 1; 1522 } 1523 1524 #ifdef INET6 1525 void 1526 in6_fillscopeid(sin6) 1527 struct sockaddr_in6 *sin6; 1528 { 1529 #if defined(__KAME__) && defined(KAME_SCOPEID) 1530 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1531 sin6->sin6_scope_id = 1532 ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]); 1533 sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0; 1534 } 1535 #endif 1536 } 1537 1538 /* XXX not really an alias */ 1539 void 1540 in6_alias(creq) 1541 struct in6_ifreq *creq; 1542 { 1543 struct sockaddr_in6 *sin6; 1544 char hbuf[NI_MAXHOST]; 1545 u_int32_t scopeid; 1546 #ifdef NI_WITHSCOPEID 1547 const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID; 1548 #else 1549 const int niflag = NI_NUMERICHOST; 1550 #endif 1551 1552 /* Get the non-alias address for this interface. */ 1553 getsock(AF_INET6); 1554 if (s < 0) { 1555 if (errno == EPROTONOSUPPORT) 1556 return; 1557 err(1, "socket"); 1558 } 1559 1560 sin6 = (struct sockaddr_in6 *)&creq->ifr_addr; 1561 1562 in6_fillscopeid(sin6); 1563 scopeid = sin6->sin6_scope_id; 1564 if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len, 1565 hbuf, sizeof(hbuf), NULL, 0, niflag)) 1566 strncpy(hbuf, "", sizeof(hbuf)); /* some message? */ 1567 printf("\tinet6 %s", hbuf); 1568 1569 if (flags & IFF_POINTOPOINT) { 1570 (void) memset(&ifr6, 0, sizeof(ifr6)); 1571 (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); 1572 ifr6.ifr_addr = creq->ifr_addr; 1573 if (ioctl(s, SIOCGIFDSTADDR_IN6, (caddr_t)&ifr6) < 0) { 1574 if (errno != EADDRNOTAVAIL) 1575 warn("SIOCGIFDSTADDR_IN6"); 1576 (void) memset(&ifr6.ifr_addr, 0, sizeof(ifr6.ifr_addr)); 1577 ifr6.ifr_addr.sin6_family = AF_INET6; 1578 ifr6.ifr_addr.sin6_len = sizeof(struct sockaddr_in6); 1579 } 1580 sin6 = (struct sockaddr_in6 *)&ifr6.ifr_addr; 1581 in6_fillscopeid(sin6); 1582 hbuf[0] = '\0'; 1583 if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len, 1584 hbuf, sizeof(hbuf), NULL, 0, niflag)) 1585 strncpy(hbuf, "", sizeof(hbuf)); /* some message? */ 1586 printf(" -> %s", hbuf); 1587 } 1588 1589 (void) memset(&ifr6, 0, sizeof(ifr6)); 1590 (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); 1591 ifr6.ifr_addr = creq->ifr_addr; 1592 if (ioctl(s, SIOCGIFNETMASK_IN6, (caddr_t)&ifr6) < 0) { 1593 if (errno != EADDRNOTAVAIL) 1594 warn("SIOCGIFNETMASK_IN6"); 1595 } else { 1596 sin6 = (struct sockaddr_in6 *)&ifr6.ifr_addr; 1597 printf(" prefixlen %d", prefix(&sin6->sin6_addr, 1598 sizeof(struct in6_addr))); 1599 } 1600 1601 (void) memset(&ifr6, 0, sizeof(ifr6)); 1602 (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); 1603 ifr6.ifr_addr = creq->ifr_addr; 1604 if (ioctl(s, SIOCGIFAFLAG_IN6, (caddr_t)&ifr6) < 0) { 1605 if (errno != EADDRNOTAVAIL) 1606 warn("SIOCGIFAFLAG_IN6"); 1607 } else { 1608 if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_ANYCAST) 1609 printf(" anycast"); 1610 if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_TENTATIVE) 1611 printf(" tentative"); 1612 if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_DUPLICATED) 1613 printf(" duplicated"); 1614 if (ifr6.ifr_ifru.ifru_flags6 & IN6_IFF_DETACHED) 1615 printf(" detached"); 1616 } 1617 1618 if (scopeid) 1619 printf(" scopeid 0x%x", scopeid); 1620 1621 if (Lflag) { 1622 struct in6_addrlifetime *lifetime; 1623 (void) memset(&ifr6, 0, sizeof(ifr6)); 1624 (void) strncpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name)); 1625 ifr6.ifr_addr = creq->ifr_addr; 1626 lifetime = &ifr6.ifr_ifru.ifru_lifetime; 1627 if (ioctl(s, SIOCGIFALIFETIME_IN6, (caddr_t)&ifr6) < 0) { 1628 if (errno != EADDRNOTAVAIL) 1629 warn("SIOCGIFALIFETIME_IN6"); 1630 } else if (lifetime->ia6t_preferred || lifetime->ia6t_expire) { 1631 time_t t = time(NULL); 1632 printf(" pltime "); 1633 if (lifetime->ia6t_preferred) { 1634 printf("%s", lifetime->ia6t_preferred < t 1635 ? "0" 1636 : sec2str(lifetime->ia6t_preferred - t)); 1637 } else 1638 printf("infty"); 1639 1640 printf(" vltime "); 1641 if (lifetime->ia6t_expire) { 1642 printf("%s", lifetime->ia6t_expire < t 1643 ? "0" 1644 : sec2str(lifetime->ia6t_expire - t)); 1645 } else 1646 printf("infty"); 1647 } 1648 } 1649 1650 printf("\n"); 1651 } 1652 1653 void 1654 in6_status(force) 1655 int force; 1656 { 1657 char inbuf[8192]; 1658 struct ifconf ifc; 1659 struct ifreq *ifr; 1660 int i, siz; 1661 char ifrbuf[8192]; 1662 1663 ifc.ifc_len = sizeof(inbuf); 1664 ifc.ifc_buf = inbuf; 1665 getsock(af); 1666 if (s < 0) 1667 err(1, "socket"); 1668 if (ioctl(s, SIOCGIFCONF, &ifc) < 0) 1669 err(1, "SIOCGIFCONF"); 1670 ifr = ifc.ifc_req; 1671 for (i = 0; i < ifc.ifc_len; ) { 1672 ifr = (struct ifreq *)((caddr_t)ifc.ifc_req + i); 1673 siz = sizeof(ifr->ifr_name) + 1674 (ifr->ifr_addr.sa_len > sizeof(struct sockaddr) 1675 ? ifr->ifr_addr.sa_len 1676 : sizeof(struct sockaddr)); 1677 i += siz; 1678 /* avoid alignment issue */ 1679 if (sizeof(ifrbuf) < siz) 1680 errx(1, "ifr too big"); 1681 memcpy(ifrbuf, ifr, siz); 1682 ifr = (struct ifreq *)ifrbuf; 1683 if (!strncmp(name, ifr->ifr_name, sizeof(ifr->ifr_name))) { 1684 if (ifr->ifr_addr.sa_family == AF_INET6) 1685 in6_alias((struct in6_ifreq *)ifr); 1686 } 1687 } 1688 } 1689 #endif /*INET6*/ 1690 1691 #ifndef INET_ONLY 1692 1693 void 1694 at_status(force) 1695 int force; 1696 { 1697 struct sockaddr_at *sat, null_sat; 1698 struct netrange *nr; 1699 1700 getsock(AF_APPLETALK); 1701 if (s < 0) { 1702 if (errno == EPROTONOSUPPORT) 1703 return; 1704 err(1, "socket"); 1705 } 1706 (void) memset(&ifr, 0, sizeof(ifr)); 1707 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1708 if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { 1709 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { 1710 if (!force) 1711 return; 1712 (void) memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); 1713 } else 1714 warn("SIOCGIFADDR"); 1715 } 1716 (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); 1717 sat = (struct sockaddr_at *)&ifr.ifr_addr; 1718 1719 (void) memset(&null_sat, 0, sizeof(null_sat)); 1720 1721 nr = (struct netrange *) &sat->sat_zero; 1722 printf("\tatalk %d.%d range %d-%d phase %d", 1723 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node, 1724 ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase); 1725 if (flags & IFF_POINTOPOINT) { 1726 if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { 1727 if (errno == EADDRNOTAVAIL) 1728 (void) memset(&ifr.ifr_addr, 0, 1729 sizeof(ifr.ifr_addr)); 1730 else 1731 warn("SIOCGIFDSTADDR"); 1732 } 1733 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1734 sat = (struct sockaddr_at *)&ifr.ifr_dstaddr; 1735 if (!sat) 1736 sat = &null_sat; 1737 printf("--> %d.%d", 1738 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node); 1739 } 1740 if (flags & IFF_BROADCAST) { 1741 /* note RTAX_BRD overlap with IFF_POINTOPOINT */ 1742 sat = (struct sockaddr_at *)&ifr.ifr_broadaddr; 1743 if (sat) 1744 printf(" broadcast %d.%d", ntohs(sat->sat_addr.s_net), 1745 sat->sat_addr.s_node); 1746 } 1747 putchar('\n'); 1748 } 1749 1750 void 1751 xns_status(force) 1752 int force; 1753 { 1754 struct sockaddr_ns *sns; 1755 1756 getsock(AF_NS); 1757 if (s < 0) { 1758 if (errno == EPROTONOSUPPORT) 1759 return; 1760 err(1, "socket"); 1761 } 1762 (void) memset(&ifr, 0, sizeof(ifr)); 1763 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1764 if (ioctl(s, SIOCGIFADDR, (caddr_t)&ifr) < 0) { 1765 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { 1766 if (!force) 1767 return; 1768 memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); 1769 } else 1770 warn("SIOCGIFADDR"); 1771 } 1772 (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); 1773 sns = (struct sockaddr_ns *)&ifr.ifr_addr; 1774 printf("\tns %s ", ns_ntoa(sns->sns_addr)); 1775 if (flags & IFF_POINTOPOINT) { /* by W. Nesheim@Cornell */ 1776 if (ioctl(s, SIOCGIFDSTADDR, (caddr_t)&ifr) < 0) { 1777 if (errno == EADDRNOTAVAIL) 1778 memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr)); 1779 else 1780 warn("SIOCGIFDSTADDR"); 1781 } 1782 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1783 sns = (struct sockaddr_ns *)&ifr.ifr_dstaddr; 1784 printf("--> %s ", ns_ntoa(sns->sns_addr)); 1785 } 1786 putchar('\n'); 1787 } 1788 1789 void 1790 iso_status(force) 1791 int force; 1792 { 1793 struct sockaddr_iso *siso; 1794 struct iso_ifreq ifr; 1795 1796 getsock(AF_ISO); 1797 if (s < 0) { 1798 if (errno == EPROTONOSUPPORT) 1799 return; 1800 err(1, "socket"); 1801 } 1802 (void) memset(&ifr, 0, sizeof(ifr)); 1803 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1804 if (ioctl(s, SIOCGIFADDR_ISO, (caddr_t)&ifr) < 0) { 1805 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT) { 1806 if (!force) 1807 return; 1808 (void) memset(&ifr.ifr_Addr, 0, sizeof(ifr.ifr_Addr)); 1809 } else 1810 warn("SIOCGIFADDR_ISO"); 1811 } 1812 (void) strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); 1813 siso = &ifr.ifr_Addr; 1814 printf("\tiso %s ", iso_ntoa(&siso->siso_addr)); 1815 if (ioctl(s, SIOCGIFNETMASK_ISO, (caddr_t)&ifr) < 0) { 1816 if (errno == EADDRNOTAVAIL) 1817 memset(&ifr.ifr_Addr, 0, sizeof(ifr.ifr_Addr)); 1818 else 1819 warn("SIOCGIFNETMASK_ISO"); 1820 } else { 1821 if (siso->siso_len > offsetof(struct sockaddr_iso, siso_addr)) 1822 siso->siso_addr.isoa_len = siso->siso_len 1823 - offsetof(struct sockaddr_iso, siso_addr); 1824 printf("\n\t\tnetmask %s ", iso_ntoa(&siso->siso_addr)); 1825 } 1826 if (flags & IFF_POINTOPOINT) { 1827 if (ioctl(s, SIOCGIFDSTADDR_ISO, (caddr_t)&ifr) < 0) { 1828 if (errno == EADDRNOTAVAIL) 1829 memset(&ifr.ifr_Addr, 0, sizeof(ifr.ifr_Addr)); 1830 else 1831 warn("SIOCGIFDSTADDR_ISO"); 1832 } 1833 (void) strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1834 siso = &ifr.ifr_Addr; 1835 printf("--> %s ", iso_ntoa(&siso->siso_addr)); 1836 } 1837 putchar('\n'); 1838 } 1839 1840 #endif /* INET_ONLY */ 1841 1842 #define SIN(x) ((struct sockaddr_in *) &(x)) 1843 struct sockaddr_in *sintab[] = { 1844 SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr), 1845 SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)}; 1846 1847 void 1848 in_getaddr(s, which) 1849 char *s; 1850 int which; 1851 { 1852 struct sockaddr_in *sin = sintab[which]; 1853 struct hostent *hp; 1854 struct netent *np; 1855 1856 sin->sin_len = sizeof(*sin); 1857 if (which != MASK) 1858 sin->sin_family = AF_INET; 1859 1860 if (which == ADDR) { 1861 char *p = NULL; 1862 1863 if((p = strrchr(s, '/')) != NULL) { 1864 /* address is `name/masklen' */ 1865 int masklen; 1866 int ret; 1867 struct sockaddr_in *min = sintab[MASK]; 1868 *p = '\0'; 1869 ret = sscanf(p+1, "%u", &masklen); 1870 if(ret != 1 || (masklen < 0 || masklen > 32)) { 1871 *p = '/'; 1872 errx(1, "%s: bad value", s); 1873 } 1874 min->sin_len = sizeof(*min); 1875 min->sin_addr.s_addr = 1876 htonl(~((1LL << (32 - masklen)) - 1) & 1877 0xffffffff); 1878 } 1879 } 1880 1881 if (inet_aton(s, &sin->sin_addr) == 0) { 1882 if ((hp = gethostbyname(s)) != NULL) 1883 (void) memcpy(&sin->sin_addr, hp->h_addr, hp->h_length); 1884 else if ((np = getnetbyname(s)) != NULL) 1885 sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY); 1886 else 1887 errx(1, "%s: bad value", s); 1888 } 1889 } 1890 1891 /* 1892 * Print a value a la the %b format of the kernel's printf 1893 */ 1894 void 1895 printb(s, v, bits) 1896 char *s; 1897 char *bits; 1898 unsigned short v; 1899 { 1900 int i, any = 0; 1901 char c; 1902 1903 if (bits && *bits == 8) 1904 printf("%s=%o", s, v); 1905 else 1906 printf("%s=%x", s, v); 1907 bits++; 1908 if (bits) { 1909 putchar('<'); 1910 while ((i = *bits++) != 0) { 1911 if (v & (1 << (i-1))) { 1912 if (any) 1913 putchar(','); 1914 any = 1; 1915 for (; (c = *bits) > 32; bits++) 1916 putchar(c); 1917 } else 1918 for (; *bits > 32; bits++) 1919 ; 1920 } 1921 putchar('>'); 1922 } 1923 } 1924 1925 #ifdef INET6 1926 #define SIN6(x) ((struct sockaddr_in6 *) &(x)) 1927 struct sockaddr_in6 *sin6tab[] = { 1928 SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr), 1929 SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)}; 1930 1931 void 1932 in6_getaddr(s, which) 1933 char *s; 1934 int which; 1935 { 1936 #if defined(__KAME__) && defined(KAME_SCOPEID) 1937 struct sockaddr_in6 *sin6 = sin6tab[which]; 1938 struct addrinfo hints, *res; 1939 int error; 1940 1941 memset(&hints, 0, sizeof(hints)); 1942 hints.ai_family = AF_INET6; 1943 hints.ai_socktype = SOCK_DGRAM; 1944 #if 0 /* in_getaddr() allows FQDN */ 1945 hints.ai_flags = AI_NUMERICHOST; 1946 #endif 1947 error = getaddrinfo(s, "0", &hints, &res); 1948 if (error) 1949 errx(1, "%s: %s", s, gai_strerror(error)); 1950 if (res->ai_next) 1951 errx(1, "%s: resolved to multiple hosts", s); 1952 if (res->ai_addrlen != sizeof(struct sockaddr_in6)) 1953 errx(1, "%s: bad value", s); 1954 memcpy(sin6, res->ai_addr, res->ai_addrlen); 1955 freeaddrinfo(res); 1956 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) && sin6->sin6_scope_id) { 1957 *(u_int16_t *)&sin6->sin6_addr.s6_addr[2] = 1958 htons(sin6->sin6_scope_id); 1959 sin6->sin6_scope_id = 0; 1960 } 1961 #else 1962 struct sockaddr_in6 *sin = sin6tab[which]; 1963 1964 sin->sin6_len = sizeof(*sin); 1965 if (which != MASK) 1966 sin->sin6_family = AF_INET6; 1967 1968 if (which == ADDR) { 1969 char *p = NULL; 1970 if((p = strrchr(s, '/')) != NULL) { 1971 *p = '\0'; 1972 in6_getprefix(p + 1, MASK); 1973 explicit_prefix = 1; 1974 } 1975 } 1976 1977 if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1) 1978 errx(1, "%s: bad value", s); 1979 #endif 1980 } 1981 1982 void 1983 in6_getprefix(plen, which) 1984 char *plen; 1985 int which; 1986 { 1987 register struct sockaddr_in6 *sin = sin6tab[which]; 1988 register u_char *cp; 1989 int len = strtol(plen, (char **)NULL, 10); 1990 1991 if ((len < 0) || (len > 128)) 1992 errx(1, "%s: bad value", plen); 1993 sin->sin6_len = sizeof(*sin); 1994 if (which != MASK) 1995 sin->sin6_family = AF_INET6; 1996 if ((len == 0) || (len == 128)) { 1997 memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); 1998 return; 1999 } 2000 memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); 2001 for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) 2002 *cp++ = 0xff; 2003 *cp = 0xff << (8 - len); 2004 } 2005 2006 int 2007 prefix(val, size) 2008 void *val; 2009 int size; 2010 { 2011 register u_char *name = (u_char *)val; 2012 register int byte, bit, plen = 0; 2013 2014 for (byte = 0; byte < size; byte++, plen += 8) 2015 if (name[byte] != 0xff) 2016 break; 2017 if (byte == size) 2018 return (plen); 2019 for (bit = 7; bit != 0; bit--, plen++) 2020 if (!(name[byte] & (1 << bit))) 2021 break; 2022 for (; bit != 0; bit--) 2023 if (name[byte] & (1 << bit)) 2024 return(0); 2025 byte++; 2026 for (; byte < size; byte++) 2027 if (name[byte]) 2028 return(0); 2029 return (plen); 2030 } 2031 #endif /*INET6*/ 2032 2033 #ifndef INET_ONLY 2034 void 2035 at_getaddr(addr, which) 2036 char *addr; 2037 int which; 2038 { 2039 struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr; 2040 u_int net, node; 2041 2042 sat->sat_family = AF_APPLETALK; 2043 sat->sat_len = sizeof(*sat); 2044 if (which == MASK) 2045 errx(1, "AppleTalk does not use netmasks\n"); 2046 if (sscanf(addr, "%u.%u", &net, &node) != 2 2047 || net == 0 || net > 0xffff || node == 0 || node > 0xfe) 2048 errx(1, "%s: illegal address", addr); 2049 sat->sat_addr.s_net = htons(net); 2050 sat->sat_addr.s_node = node; 2051 } 2052 2053 void 2054 setatrange(range, d) 2055 char *range; 2056 int d; 2057 { 2058 u_short first = 123, last = 123; 2059 2060 if (sscanf(range, "%hu-%hu", &first, &last) != 2 2061 || first == 0 || first > 0xffff 2062 || last == 0 || last > 0xffff || first > last) 2063 errx(1, "%s: illegal net range: %u-%u", range, first, last); 2064 at_nr.nr_firstnet = htons(first); 2065 at_nr.nr_lastnet = htons(last); 2066 } 2067 2068 void 2069 setatphase(phase, d) 2070 char *phase; 2071 int d; 2072 { 2073 if (!strcmp(phase, "1")) 2074 at_nr.nr_phase = 1; 2075 else if (!strcmp(phase, "2")) 2076 at_nr.nr_phase = 2; 2077 else 2078 errx(1, "%s: illegal phase", phase); 2079 } 2080 2081 void 2082 checkatrange(sat) 2083 struct sockaddr_at *sat; 2084 { 2085 if (at_nr.nr_phase == 0) 2086 at_nr.nr_phase = 2; /* Default phase 2 */ 2087 if (at_nr.nr_firstnet == 0) 2088 at_nr.nr_firstnet = /* Default range of one */ 2089 at_nr.nr_lastnet = sat->sat_addr.s_net; 2090 printf("\tatalk %d.%d range %d-%d phase %d\n", 2091 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node, 2092 ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase); 2093 if ((u_short) ntohs(at_nr.nr_firstnet) > 2094 (u_short) ntohs(sat->sat_addr.s_net) 2095 || (u_short) ntohs(at_nr.nr_lastnet) < 2096 (u_short) ntohs(sat->sat_addr.s_net)) 2097 errx(1, "AppleTalk address is not in range"); 2098 *((struct netrange *) &sat->sat_zero) = at_nr; 2099 } 2100 2101 #define SNS(x) ((struct sockaddr_ns *) &(x)) 2102 struct sockaddr_ns *snstab[] = { 2103 SNS(ridreq.ifr_addr), SNS(addreq.ifra_addr), 2104 SNS(addreq.ifra_mask), SNS(addreq.ifra_broadaddr)}; 2105 2106 void 2107 xns_getaddr(addr, which) 2108 char *addr; 2109 int which; 2110 { 2111 struct sockaddr_ns *sns = snstab[which]; 2112 2113 sns->sns_family = AF_NS; 2114 sns->sns_len = sizeof(*sns); 2115 sns->sns_addr = ns_addr(addr); 2116 if (which == MASK) 2117 puts("Attempt to set XNS netmask will be ineffectual"); 2118 } 2119 2120 #define SISO(x) ((struct sockaddr_iso *) &(x)) 2121 struct sockaddr_iso *sisotab[] = { 2122 SISO(iso_ridreq.ifr_Addr), SISO(iso_addreq.ifra_addr), 2123 SISO(iso_addreq.ifra_mask), SISO(iso_addreq.ifra_dstaddr)}; 2124 2125 void 2126 iso_getaddr(addr, which) 2127 char *addr; 2128 int which; 2129 { 2130 struct sockaddr_iso *siso = sisotab[which]; 2131 siso->siso_addr = *iso_addr(addr); 2132 2133 if (which == MASK) { 2134 siso->siso_len = TSEL(siso) - (caddr_t)(siso); 2135 siso->siso_nlen = 0; 2136 } else { 2137 siso->siso_len = sizeof(*siso); 2138 siso->siso_family = AF_ISO; 2139 } 2140 } 2141 2142 void 2143 setsnpaoffset(val, d) 2144 char *val; 2145 int d; 2146 { 2147 iso_addreq.ifra_snpaoffset = atoi(val); 2148 } 2149 2150 void 2151 setnsellength(val, d) 2152 char *val; 2153 int d; 2154 { 2155 nsellength = atoi(val); 2156 if (nsellength < 0) 2157 errx(1, "Negative NSEL length is absurd"); 2158 if (afp == 0 || afp->af_af != AF_ISO) 2159 errx(1, "Setting NSEL length valid only for iso"); 2160 } 2161 2162 void 2163 fixnsel(s) 2164 struct sockaddr_iso *s; 2165 { 2166 if (s->siso_family == 0) 2167 return; 2168 s->siso_tlen = nsellength; 2169 } 2170 2171 void 2172 adjust_nsellength() 2173 { 2174 fixnsel(sisotab[RIDADDR]); 2175 fixnsel(sisotab[ADDR]); 2176 fixnsel(sisotab[DSTADDR]); 2177 } 2178 2179 #endif /* INET_ONLY */ 2180 2181 void 2182 usage() 2183 { 2184 fprintf(stderr, 2185 "usage: ifconfig [ -m ] [ -A ] %s interface\n%s%s%s%s%s%s%s%s%s%s%s%s", 2186 #ifdef INET6 2187 "[ -L ]", 2188 #else 2189 "", 2190 #endif 2191 "\t[ af [ address [ dest_addr ] ] [ up ] [ down ] ", 2192 "[ netmask mask ] ]\n", 2193 "\t[ metric n ]\n", 2194 "\t[ mtu n ]\n", 2195 "\t[ arp | -arp ]\n", 2196 "\t[ media mtype ]\n", 2197 "\t[ mediaopt mopts ]\n", 2198 "\t[ -mediaopt mopts ]\n", 2199 "\t[ instance minst ]\n", 2200 "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n", 2201 " ifconfig -a [ -A ] [ -m ] [ -d ] [ -u ] [ af ]\n", 2202 " ifconfig -l [ -d ] [ -u ]\n"); 2203 exit(1); 2204 } 2205 2206 #ifdef INET6 2207 char * 2208 sec2str(total) 2209 time_t total; 2210 { 2211 static char result[256]; 2212 int days, hours, mins, secs; 2213 int first = 1; 2214 char *p = result; 2215 2216 if (0) { /*XXX*/ 2217 days = total / 3600 / 24; 2218 hours = (total / 3600) % 24; 2219 mins = (total / 60) % 60; 2220 secs = total % 60; 2221 2222 if (days) { 2223 first = 0; 2224 p += sprintf(p, "%dd", days); 2225 } 2226 if (!first || hours) { 2227 first = 0; 2228 p += sprintf(p, "%dh", hours); 2229 } 2230 if (!first || mins) { 2231 first = 0; 2232 p += sprintf(p, "%dm", mins); 2233 } 2234 sprintf(p, "%ds", secs); 2235 } else 2236 sprintf(p, "%lu", (u_long)total); 2237 2238 return(result); 2239 } 2240 #endif 2241
Indexes created Mon Sep 29 21:09:56 GMT 2025