ifconfig.c revision 121539
1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35static const char copyright[] = 36"@(#) Copyright (c) 1983, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41#if 0 42static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; 43#endif 44static const char rcsid[] = 45 "$FreeBSD: head/sbin/ifconfig/ifconfig.c 121539 2003-10-26 04:36:47Z peter $"; 46#endif /* not lint */ 47 48#include <sys/param.h> 49#include <sys/ioctl.h> 50#include <sys/socket.h> 51#include <sys/sysctl.h> 52#include <sys/time.h> 53#include <sys/module.h> 54#include <sys/linker.h> 55 56#include <net/ethernet.h> 57#include <net/if.h> 58#include <net/if_var.h> 59#include <net/if_dl.h> 60#include <net/if_types.h> 61#include <net/route.h> 62 63/* IP */ 64#include <netinet/in.h> 65#include <netinet/in_var.h> 66#include <arpa/inet.h> 67#include <netdb.h> 68 69#ifdef INET6 70#include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */ 71#endif 72 73#ifndef NO_IPX 74/* IPX */ 75#define IPXIP 76#define IPTUNNEL 77#include <netipx/ipx.h> 78#include <netipx/ipx_if.h> 79#endif 80 81/* Appletalk */ 82#include <netatalk/at.h> 83 84#include <ctype.h> 85#include <err.h> 86#include <errno.h> 87#include <fcntl.h> 88#include <stdio.h> 89#include <stdlib.h> 90#include <string.h> 91#include <unistd.h> 92#include <ifaddrs.h> 93 94#include "ifconfig.h" 95 96/* wrapper for KAME-special getnameinfo() */ 97#ifndef NI_WITHSCOPEID 98#define NI_WITHSCOPEID 0 99#endif 100 101struct ifreq ifr, ridreq; 102struct ifaliasreq addreq; 103#ifdef INET6 104struct in6_ifreq in6_ridreq; 105struct in6_aliasreq in6_addreq = 106 { { 0 }, 107 { 0 }, 108 { 0 }, 109 { 0 }, 110 0, 111 { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } }; 112#endif 113struct sockaddr_in netmask; 114struct netrange at_nr; /* AppleTalk net range */ 115 116char name[32]; 117int flags; 118int setaddr; 119int setipdst; 120int setmask; 121int doalias; 122int clearaddr; 123int newaddr = 1; 124#ifdef INET6 125static int ip6lifetime; 126#endif 127 128struct afswtch; 129 130int supmedia = 0; 131int listcloners = 0; 132 133#ifdef INET6 134char addr_buf[MAXHOSTNAMELEN *2 + 1]; /*for getnameinfo()*/ 135#endif 136 137void Perror(const char *cmd); 138void checkatrange(struct sockaddr_at *); 139int ifconfig(int argc, char *const *argv, const struct afswtch *afp); 140void notealias(const char *, int, int, const struct afswtch *afp); 141void list_cloners(void); 142void printb(const char *s, unsigned value, const char *bits); 143void rt_xaddrs(caddr_t, caddr_t, struct rt_addrinfo *); 144void status(const struct afswtch *afp, int addrcount, 145 struct sockaddr_dl *sdl, struct if_msghdr *ifm, 146 struct ifa_msghdr *ifam); 147void tunnel_status(int s); 148void usage(void); 149void ifmaybeload(char *name); 150 151#ifdef INET6 152void in6_fillscopeid(struct sockaddr_in6 *sin6); 153int prefix(void *, int); 154static char *sec2str(time_t); 155int explicit_prefix = 0; 156#endif 157 158typedef void c_func(const char *cmd, int arg, int s, const struct afswtch *afp); 159typedef void c_func2(const char *arg, const char *arg2, int s, const struct afswtch *afp); 160c_func setatphase, setatrange; 161c_func setifaddr, setifbroadaddr, setifdstaddr, setifnetmask; 162c_func2 settunnel; 163c_func deletetunnel; 164#ifdef INET6 165c_func setifprefixlen; 166c_func setip6flags; 167c_func setip6pltime; 168c_func setip6vltime; 169c_func2 setip6lifetime; 170c_func setip6eui64; 171#endif 172c_func setifipdst; 173c_func setifflags, setifmetric, setifmtu, setifcap; 174c_func clone_destroy; 175 176 177void clone_create(void); 178 179 180#define NEXTARG 0xffffff 181#define NEXTARG2 0xfffffe 182 183const 184struct cmd { 185 const char *c_name; 186 int c_parameter; /* NEXTARG means next argv */ 187 void (*c_func)(const char *, int, int, const struct afswtch *afp); 188 void (*c_func2)(const char *, const char *, int, const struct afswtch *afp); 189} cmds[] = { 190 { "up", IFF_UP, setifflags } , 191 { "down", -IFF_UP, setifflags }, 192 { "arp", -IFF_NOARP, setifflags }, 193 { "-arp", IFF_NOARP, setifflags }, 194 { "debug", IFF_DEBUG, setifflags }, 195 { "-debug", -IFF_DEBUG, setifflags }, 196 { "promisc", IFF_PPROMISC, setifflags }, 197 { "-promisc", -IFF_PPROMISC, setifflags }, 198 { "add", IFF_UP, notealias }, 199 { "alias", IFF_UP, notealias }, 200 { "-alias", -IFF_UP, notealias }, 201 { "delete", -IFF_UP, notealias }, 202 { "remove", -IFF_UP, notealias }, 203#ifdef notdef 204#define EN_SWABIPS 0x1000 205 { "swabips", EN_SWABIPS, setifflags }, 206 { "-swabips", -EN_SWABIPS, setifflags }, 207#endif 208 { "netmask", NEXTARG, setifnetmask }, 209#ifdef INET6 210 { "prefixlen", NEXTARG, setifprefixlen }, 211 { "anycast", IN6_IFF_ANYCAST, setip6flags }, 212 { "tentative", IN6_IFF_TENTATIVE, setip6flags }, 213 { "-tentative", -IN6_IFF_TENTATIVE, setip6flags }, 214 { "deprecated", IN6_IFF_DEPRECATED, setip6flags }, 215 { "-deprecated", -IN6_IFF_DEPRECATED, setip6flags }, 216 { "autoconf", IN6_IFF_AUTOCONF, setip6flags }, 217 { "-autoconf", -IN6_IFF_AUTOCONF, setip6flags }, 218 { "pltime", NEXTARG, setip6pltime }, 219 { "vltime", NEXTARG, setip6vltime }, 220 { "eui64", 0, setip6eui64 }, 221#endif 222 { "range", NEXTARG, setatrange }, 223 { "phase", NEXTARG, setatphase }, 224 { "metric", NEXTARG, setifmetric }, 225 { "broadcast", NEXTARG, setifbroadaddr }, 226 { "ipdst", NEXTARG, setifipdst }, 227 { "tunnel", NEXTARG2, NULL, settunnel }, 228 { "deletetunnel", 0, deletetunnel }, 229 { "link0", IFF_LINK0, setifflags }, 230 { "-link0", -IFF_LINK0, setifflags }, 231 { "link1", IFF_LINK1, setifflags }, 232 { "-link1", -IFF_LINK1, setifflags }, 233 { "link2", IFF_LINK2, setifflags }, 234 { "-link2", -IFF_LINK2, setifflags }, 235 { "monitor", IFF_MONITOR, setifflags }, 236 { "-monitor", -IFF_MONITOR, setifflags }, 237 { "staticarp", IFF_STATICARP, setifflags }, 238 { "-staticarp", -IFF_STATICARP, setifflags }, 239#ifdef USE_IF_MEDIA 240 { "media", NEXTARG, setmedia }, 241 { "mode", NEXTARG, setmediamode }, 242 { "mediaopt", NEXTARG, setmediaopt }, 243 { "-mediaopt", NEXTARG, unsetmediaopt }, 244#endif 245#ifdef USE_VLANS 246 { "vlan", NEXTARG, setvlantag }, 247 { "vlandev", NEXTARG, setvlandev }, 248 { "-vlandev", NEXTARG, unsetvlandev }, 249#endif 250#if 0 251 /* XXX `create' special-cased below */ 252 {"create", 0, clone_create }, 253 {"plumb", 0, clone_create }, 254#endif 255 {"destroy", 0, clone_destroy }, 256 {"unplumb", 0, clone_destroy }, 257#ifdef USE_IEEE80211 258 { "ssid", NEXTARG, set80211ssid }, 259 { "nwid", NEXTARG, set80211ssid }, 260 { "stationname", NEXTARG, set80211stationname }, 261 { "station", NEXTARG, set80211stationname }, /* BSD/OS */ 262 { "channel", NEXTARG, set80211channel }, 263 { "authmode", NEXTARG, set80211authmode }, 264 { "powersavemode", NEXTARG, set80211powersavemode }, 265 { "powersave", 1, set80211powersave }, 266 { "-powersave", 0, set80211powersave }, 267 { "powersavesleep", NEXTARG, set80211powersavesleep }, 268 { "wepmode", NEXTARG, set80211wepmode }, 269 { "wep", 1, set80211wep }, 270 { "-wep", 0, set80211wep }, 271 { "weptxkey", NEXTARG, set80211weptxkey }, 272 { "wepkey", NEXTARG, set80211wepkey }, 273 { "nwkey", NEXTARG, set80211nwkey }, /* NetBSD */ 274 { "-nwkey", 0, set80211wep }, /* NetBSD */ 275#endif 276#ifdef USE_MAC 277 { "maclabel", NEXTARG, setifmaclabel }, 278#endif 279 { "rxcsum", IFCAP_RXCSUM, setifcap }, 280 { "-rxcsum", -IFCAP_RXCSUM, setifcap }, 281 { "txcsum", IFCAP_TXCSUM, setifcap }, 282 { "-txcsum", -IFCAP_TXCSUM, setifcap }, 283 { "netcons", IFCAP_NETCONS, setifcap }, 284 { "-netcons", -IFCAP_NETCONS, setifcap }, 285 { "normal", -IFF_LINK0, setifflags }, 286 { "compress", IFF_LINK0, setifflags }, 287 { "noicmp", IFF_LINK1, setifflags }, 288 { "mtu", NEXTARG, setifmtu }, 289 { 0, 0, setifaddr }, 290 { 0, 0, setifdstaddr }, 291}; 292 293/* 294 * XNS support liberally adapted from code written at the University of 295 * Maryland principally by James O'Toole and Chris Torek. 296 */ 297typedef void af_status(int, struct rt_addrinfo *); 298typedef void af_getaddr(const char *, int); 299typedef void af_getprefix(const char *, int); 300 301af_status in_status, at_status, link_status; 302af_getaddr in_getaddr, at_getaddr, link_getaddr; 303 304#ifndef NO_IPX 305af_status ipx_status; 306af_getaddr ipx_getaddr; 307#endif 308 309#ifdef INET6 310af_status in6_status; 311af_getaddr in6_getaddr; 312af_getprefix in6_getprefix; 313#endif /*INET6*/ 314 315/* Known address families */ 316const 317struct afswtch { 318 const char *af_name; 319 short af_af; 320 af_status *af_status; 321 af_getaddr *af_getaddr; 322 af_getprefix *af_getprefix; 323 u_long af_difaddr; 324 u_long af_aifaddr; 325 caddr_t af_ridreq; 326 caddr_t af_addreq; 327} afs[] = { 328#define C(x) ((caddr_t) &x) 329 { "inet", AF_INET, in_status, in_getaddr, NULL, 330 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, 331#ifdef INET6 332 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_getprefix, 333 SIOCDIFADDR_IN6, SIOCAIFADDR_IN6, 334 C(in6_ridreq), C(in6_addreq) }, 335#endif /*INET6*/ 336#ifndef NO_IPX 337 { "ipx", AF_IPX, ipx_status, ipx_getaddr, NULL, 338 SIOCDIFADDR, SIOCAIFADDR, C(ridreq), C(addreq) }, 339#endif 340 { "atalk", AF_APPLETALK, at_status, at_getaddr, NULL, 341 SIOCDIFADDR, SIOCAIFADDR, C(addreq), C(addreq) }, 342 { "link", AF_LINK, link_status, link_getaddr, NULL, 343 0, SIOCSIFLLADDR, NULL, C(ridreq) }, 344 { "ether", AF_LINK, link_status, link_getaddr, NULL, 345 0, SIOCSIFLLADDR, NULL, C(ridreq) }, 346 { "lladdr", AF_LINK, link_status, link_getaddr, NULL, 347 0, SIOCSIFLLADDR, NULL, C(ridreq) }, 348#if 0 /* XXX conflicts with the media command */ 349#ifdef USE_IF_MEDIA 350 { "media", AF_UNSPEC, media_status, NULL, NULL, }, /* XXX not real!! */ 351#endif 352#ifdef USE_VLANS 353 { "vlan", AF_UNSPEC, vlan_status, NULL, NULL, }, /* XXX not real!! */ 354#endif 355#ifdef USE_IEEE80211 356 { "ieee80211", AF_UNSPEC, ieee80211_status, NULL, NULL, }, /* XXX not real!! */ 357#endif 358#ifdef USE_MAC 359 { "maclabel", AF_UNSPEC, maclabel_status, NULL, NULL, }, 360#endif 361#endif 362 { 0, 0, 0, 0 } 363}; 364 365/* 366 * Expand the compacted form of addresses as returned via the 367 * configuration read via sysctl(). 368 */ 369 370#define ROUNDUP(a) \ 371 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 372#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 373 374void 375rt_xaddrs(caddr_t cp, caddr_t cplim, struct rt_addrinfo *rtinfo) 376{ 377 struct sockaddr *sa; 378 int i; 379 380 memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info)); 381 for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) { 382 if ((rtinfo->rti_addrs & (1 << i)) == 0) 383 continue; 384 rtinfo->rti_info[i] = sa = (struct sockaddr *)cp; 385 ADVANCE(cp, sa); 386 } 387} 388 389 390void 391usage(void) 392{ 393#ifndef INET6 394 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 395 "usage: ifconfig interface address_family [address [dest_address]]", 396 " [parameters]", 397 " ifconfig -C", 398 " ifconfig interface create", 399 " ifconfig -a [-d] [-m] [-u] [address_family]", 400 " ifconfig -l [-d] [-u] [address_family]", 401 " ifconfig [-d] [-m] [-u]"); 402#else 403 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 404 "usage: ifconfig [-L] interface address_family [address [dest_address]]", 405 " [parameters]", 406 " ifconfig -C", 407 " ifconfig interface create", 408 " ifconfig -a [-L] [-d] [-m] [-u] [address_family]", 409 " ifconfig -l [-d] [-u] [address_family]", 410 " ifconfig [-L] [-d] [-m] [-u]"); 411#endif 412 exit(1); 413} 414 415int 416main(int argc, char *argv[]) 417{ 418 int c; 419 int all, namesonly, downonly, uponly; 420 int need_nl = 0; 421 const struct afswtch *afp = 0; 422 int addrcount, ifindex; 423 struct if_msghdr *ifm, *nextifm; 424 struct ifa_msghdr *ifam; 425 struct sockaddr_dl *sdl; 426 char *buf, *lim, *next; 427 size_t needed; 428 int mib[6]; 429 430 /* Parse leading line options */ 431 all = downonly = uponly = namesonly = 0; 432 while ((c = getopt(argc, argv, "adlmuC" 433#ifdef INET6 434 "L" 435#endif 436 )) != -1) { 437 switch (c) { 438 case 'a': /* scan all interfaces */ 439 all++; 440 break; 441 case 'd': /* restrict scan to "down" interfaces */ 442 downonly++; 443 break; 444 case 'l': /* scan interface names only */ 445 namesonly++; 446 break; 447 case 'm': /* show media choices in status */ 448 supmedia = 1; 449 break; 450 case 'u': /* restrict scan to "up" interfaces */ 451 uponly++; 452 break; 453 case 'C': 454 listcloners = 1; 455 break; 456#ifdef INET6 457 case 'L': 458 ip6lifetime++; /* print IPv6 address lifetime */ 459 break; 460#endif 461 default: 462 usage(); 463 break; 464 } 465 } 466 argc -= optind; 467 argv += optind; 468 469 if (listcloners) { 470 /* -C must be solitary */ 471 if (all || supmedia || uponly || downonly || namesonly || 472 argc > 0) 473 usage(); 474 475 list_cloners(); 476 exit(0); 477 } 478 479 /* -l cannot be used with -a or -m */ 480 if (namesonly && (all || supmedia)) 481 usage(); 482 483 /* nonsense.. */ 484 if (uponly && downonly) 485 usage(); 486 487 /* no arguments is equivalent to '-a' */ 488 if (!namesonly && argc < 1) 489 all = 1; 490 491 /* -a and -l allow an address family arg to limit the output */ 492 if (all || namesonly) { 493 if (argc > 1) 494 usage(); 495 496 ifindex = 0; 497 if (argc == 1) { 498 for (afp = afs; afp->af_name; afp++) 499 if (strcmp(afp->af_name, *argv) == 0) { 500 argc--, argv++; 501 break; 502 } 503 if (afp->af_name == NULL) 504 usage(); 505 /* leave with afp non-zero */ 506 } 507 } else { 508 /* not listing, need an argument */ 509 if (argc < 1) 510 usage(); 511 512 strncpy(name, *argv, sizeof(name)); 513 argc--, argv++; 514 515 /* check and maybe load support for this interface */ 516 ifmaybeload(name); 517 518 /* 519 * NOTE: We must special-case the `create' command right 520 * here as we would otherwise fail when trying to find 521 * the interface. 522 */ 523 if (argc > 0 && (strcmp(argv[0], "create") == 0 || 524 strcmp(argv[0], "plumb") == 0)) { 525 clone_create(); 526 argc--, argv++; 527 if (argc == 0) 528 exit(0); 529 } 530 ifindex = if_nametoindex(name); 531 if (ifindex == 0) 532 errx(1, "interface %s does not exist", name); 533 } 534 535 /* Check for address family */ 536 if (argc > 0) { 537 for (afp = afs; afp->af_name; afp++) 538 if (strcmp(afp->af_name, *argv) == 0) { 539 argc--, argv++; 540 break; 541 } 542 if (afp->af_name == NULL) 543 afp = NULL; /* not a family, NULL */ 544 } 545 546 mib[0] = CTL_NET; 547 mib[1] = PF_ROUTE; 548 mib[2] = 0; 549 mib[3] = 0; /* address family */ 550 mib[4] = NET_RT_IFLIST; 551 mib[5] = ifindex; /* interface index */ 552 553 /* if particular family specified, only ask about it */ 554 if (afp) 555 mib[3] = afp->af_af; 556 557 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 558 errx(1, "iflist-sysctl-estimate"); 559 if ((buf = malloc(needed)) == NULL) 560 errx(1, "malloc"); 561 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 562 errx(1, "actual retrieval of interface table"); 563 lim = buf + needed; 564 565 next = buf; 566 while (next < lim) { 567 568 ifm = (struct if_msghdr *)next; 569 570 if (ifm->ifm_type == RTM_IFINFO) { 571 sdl = (struct sockaddr_dl *)(ifm + 1); 572 flags = ifm->ifm_flags; 573 } else { 574 fprintf(stderr, "out of sync parsing NET_RT_IFLIST\n"); 575 fprintf(stderr, "expected %d, got %d\n", RTM_IFINFO, 576 ifm->ifm_type); 577 fprintf(stderr, "msglen = %d\n", ifm->ifm_msglen); 578 fprintf(stderr, "buf:%p, next:%p, lim:%p\n", buf, next, 579 lim); 580 exit (1); 581 } 582 583 next += ifm->ifm_msglen; 584 ifam = NULL; 585 addrcount = 0; 586 while (next < lim) { 587 588 nextifm = (struct if_msghdr *)next; 589 590 if (nextifm->ifm_type != RTM_NEWADDR) 591 break; 592 593 if (ifam == NULL) 594 ifam = (struct ifa_msghdr *)nextifm; 595 596 addrcount++; 597 next += nextifm->ifm_msglen; 598 } 599 strncpy(name, sdl->sdl_data, sdl->sdl_nlen); 600 name[sdl->sdl_nlen] = '\0'; 601 602 if (all || namesonly) { 603 if (uponly) 604 if ((flags & IFF_UP) == 0) 605 continue; /* not up */ 606 if (downonly) 607 if (flags & IFF_UP) 608 continue; /* not down */ 609 if (namesonly) { 610 if (afp == NULL || 611 afp->af_status != link_status || 612 sdl->sdl_type == IFT_ETHER) { 613 if (need_nl) 614 putchar(' '); 615 fputs(name, stdout); 616 need_nl++; 617 } 618 continue; 619 } 620 } 621 622 if (argc > 0) 623 ifconfig(argc, argv, afp); 624 else 625 status(afp, addrcount, sdl, ifm, ifam); 626 } 627 free(buf); 628 629 if (namesonly && need_nl > 0) 630 putchar('\n'); 631 632 exit (0); 633} 634 635int 636ifconfig(int argc, char *const *argv, const struct afswtch *afp) 637{ 638 int s; 639 640 if (afp == NULL) 641 afp = &afs[0]; 642 ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af; 643 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name); 644 645 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) 646 err(1, "socket"); 647 648 while (argc > 0) { 649 const struct cmd *p; 650 651 for (p = cmds; p->c_name; p++) 652 if (strcmp(*argv, p->c_name) == 0) 653 break; 654 if (p->c_name == 0 && setaddr) 655 p++; /* got src, do dst */ 656 if (p->c_func || p->c_func2) { 657 if (p->c_parameter == NEXTARG) { 658 if (argv[1] == NULL) 659 errx(1, "'%s' requires argument", 660 p->c_name); 661 (*p->c_func)(argv[1], 0, s, afp); 662 argc--, argv++; 663 } else if (p->c_parameter == NEXTARG2) { 664 if (argc < 3) 665 errx(1, "'%s' requires 2 arguments", 666 p->c_name); 667 (*p->c_func2)(argv[1], argv[2], s, afp); 668 argc -= 2, argv += 2; 669 } else 670 (*p->c_func)(*argv, p->c_parameter, s, afp); 671 } 672 argc--, argv++; 673 } 674#ifdef INET6 675 if (ifr.ifr_addr.sa_family == AF_INET6 && explicit_prefix == 0) { 676 /* Aggregatable address architecture defines all prefixes 677 are 64. So, it is convenient to set prefixlen to 64 if 678 it is not specified. */ 679 setifprefixlen("64", 0, s, afp); 680 /* in6_getprefix("64", MASK) if MASK is available here... */ 681 } 682#endif 683#ifndef NO_IPX 684 if (setipdst && ifr.ifr_addr.sa_family == AF_IPX) { 685 struct ipxip_req rq; 686 int size = sizeof(rq); 687 688 rq.rq_ipx = addreq.ifra_addr; 689 rq.rq_ip = addreq.ifra_dstaddr; 690 691 if (setsockopt(s, 0, SO_IPXIP_ROUTE, &rq, size) < 0) 692 Perror("Encapsulation Routing"); 693 } 694#endif 695 if (ifr.ifr_addr.sa_family == AF_APPLETALK) 696 checkatrange((struct sockaddr_at *) &addreq.ifra_addr); 697 if (clearaddr) { 698 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) { 699 warnx("interface %s cannot change %s addresses!", 700 name, afp->af_name); 701 clearaddr = NULL; 702 } 703 } 704 if (clearaddr) { 705 int ret; 706 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name); 707 if ((ret = ioctl(s, afp->af_difaddr, afp->af_ridreq)) < 0) { 708 if (errno == EADDRNOTAVAIL && (doalias >= 0)) { 709 /* means no previous address for interface */ 710 } else 711 Perror("ioctl (SIOCDIFADDR)"); 712 } 713 } 714 if (newaddr) { 715 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) { 716 warnx("interface %s cannot change %s addresses!", 717 name, afp->af_name); 718 newaddr = 0; 719 } 720 } 721 if (newaddr && (setaddr || setmask)) { 722 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name); 723 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0) 724 Perror("ioctl (SIOCAIFADDR)"); 725 } 726 close(s); 727 return(0); 728} 729#define RIDADDR 0 730#define ADDR 1 731#define MASK 2 732#define DSTADDR 3 733 734/*ARGSUSED*/ 735void 736setifaddr(const char *addr, int param, int s, const struct afswtch *afp) 737{ 738 if (*afp->af_getaddr == NULL) 739 return; 740 /* 741 * Delay the ioctl to set the interface addr until flags are all set. 742 * The address interpretation may depend on the flags, 743 * and the flags may change when the address is set. 744 */ 745 setaddr++; 746 if (doalias == 0 && afp->af_af != AF_LINK) 747 clearaddr = 1; 748 (*afp->af_getaddr)(addr, (doalias >= 0 ? ADDR : RIDADDR)); 749} 750 751void 752settunnel(const char *src, const char *dst, int s, const struct afswtch *afp) 753{ 754 struct addrinfo hints, *srcres, *dstres; 755 struct ifaliasreq addreq; 756 int ecode; 757#ifdef INET6 758 struct in6_aliasreq in6_addreq; 759#endif 760 761 memset(&hints, 0, sizeof(hints)); 762 hints.ai_family = afp->af_af; 763 764 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0) 765 errx(1, "error in parsing address string: %s", 766 gai_strerror(ecode)); 767 768 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0) 769 errx(1, "error in parsing address string: %s", 770 gai_strerror(ecode)); 771 772 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family) 773 errx(1, 774 "source and destination address families do not match"); 775 776 switch (srcres->ai_addr->sa_family) { 777 case AF_INET: 778 memset(&addreq, 0, sizeof(addreq)); 779 strncpy(addreq.ifra_name, name, IFNAMSIZ); 780 memcpy(&addreq.ifra_addr, srcres->ai_addr, 781 srcres->ai_addr->sa_len); 782 memcpy(&addreq.ifra_dstaddr, dstres->ai_addr, 783 dstres->ai_addr->sa_len); 784 785 if (ioctl(s, SIOCSIFPHYADDR, &addreq) < 0) 786 warn("SIOCSIFPHYADDR"); 787 break; 788 789#ifdef INET6 790 case AF_INET6: 791 memset(&in6_addreq, 0, sizeof(in6_addreq)); 792 strncpy(in6_addreq.ifra_name, name, IFNAMSIZ); 793 memcpy(&in6_addreq.ifra_addr, srcres->ai_addr, 794 srcres->ai_addr->sa_len); 795 memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr, 796 dstres->ai_addr->sa_len); 797 798 if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0) 799 warn("SIOCSIFPHYADDR_IN6"); 800 break; 801#endif /* INET6 */ 802 803 default: 804 warn("address family not supported"); 805 } 806 807 freeaddrinfo(srcres); 808 freeaddrinfo(dstres); 809} 810 811/* ARGSUSED */ 812void 813deletetunnel(const char *vname, int param, int s, const struct afswtch *afp) 814{ 815 816 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0) 817 err(1, "SIOCDIFPHYADDR"); 818} 819 820void 821setifnetmask(const char *addr, int dummy __unused, int s, 822 const struct afswtch *afp) 823{ 824 if (*afp->af_getaddr == NULL) 825 return; 826 setmask++; 827 (*afp->af_getaddr)(addr, MASK); 828} 829 830#ifdef INET6 831void 832setifprefixlen(const char *addr, int dummy __unused, int s, 833 const struct afswtch *afp) 834{ 835 if (*afp->af_getprefix) 836 (*afp->af_getprefix)(addr, MASK); 837 explicit_prefix = 1; 838} 839 840void 841setip6flags(const char *dummyaddr __unused, int flag, int dummysoc __unused, 842 const struct afswtch *afp) 843{ 844 if (afp->af_af != AF_INET6) 845 err(1, "address flags can be set only for inet6 addresses"); 846 847 if (flag < 0) 848 in6_addreq.ifra_flags &= ~(-flag); 849 else 850 in6_addreq.ifra_flags |= flag; 851} 852 853void 854setip6pltime(const char *seconds, int dummy __unused, int s, 855 const struct afswtch *afp) 856{ 857 setip6lifetime("pltime", seconds, s, afp); 858} 859 860void 861setip6vltime(const char *seconds, int dummy __unused, int s, 862 const struct afswtch *afp) 863{ 864 setip6lifetime("vltime", seconds, s, afp); 865} 866 867void 868setip6lifetime(const char *cmd, const char *val, int s, 869 const struct afswtch *afp) 870{ 871 time_t newval, t; 872 char *ep; 873 874 t = time(NULL); 875 newval = (time_t)strtoul(val, &ep, 0); 876 if (val == ep) 877 errx(1, "invalid %s", cmd); 878 if (afp->af_af != AF_INET6) 879 errx(1, "%s not allowed for the AF", cmd); 880 if (strcmp(cmd, "vltime") == 0) { 881 in6_addreq.ifra_lifetime.ia6t_expire = t + newval; 882 in6_addreq.ifra_lifetime.ia6t_vltime = newval; 883 } else if (strcmp(cmd, "pltime") == 0) { 884 in6_addreq.ifra_lifetime.ia6t_preferred = t + newval; 885 in6_addreq.ifra_lifetime.ia6t_pltime = newval; 886 } 887} 888 889void 890setip6eui64(const char *cmd, int dummy __unused, int s, 891 const struct afswtch *afp) 892{ 893 struct ifaddrs *ifap, *ifa; 894 const struct sockaddr_in6 *sin6 = NULL; 895 const struct in6_addr *lladdr = NULL; 896 struct in6_addr *in6; 897 898 if (afp->af_af != AF_INET6) 899 errx(EXIT_FAILURE, "%s not allowed for the AF", cmd); 900 in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr; 901 if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0) 902 errx(EXIT_FAILURE, "interface index is already filled"); 903 if (getifaddrs(&ifap) != 0) 904 err(EXIT_FAILURE, "getifaddrs"); 905 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 906 if (ifa->ifa_addr->sa_family == AF_INET6 && 907 strcmp(ifa->ifa_name, name) == 0) { 908 sin6 = (const struct sockaddr_in6 *)ifa->ifa_addr; 909 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 910 lladdr = &sin6->sin6_addr; 911 break; 912 } 913 } 914 } 915 if (!lladdr) 916 errx(EXIT_FAILURE, "could not determine link local address"); 917 918 memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8); 919 920 freeifaddrs(ifap); 921} 922#endif 923 924void 925setifbroadaddr(const char *addr, int dummy __unused, int s, 926 const struct afswtch *afp) 927{ 928 if (*afp->af_getaddr == NULL) 929 return; 930 (*afp->af_getaddr)(addr, DSTADDR); 931} 932 933void 934setifipdst(const char *addr, int dummy __unused, int s, 935 const struct afswtch *afp) 936{ 937 in_getaddr(addr, DSTADDR); 938 setipdst++; 939 clearaddr = 0; 940 newaddr = 0; 941} 942#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr)) 943 944void 945notealias(const char *addr, int param, int s, const struct afswtch *afp) 946{ 947 if (setaddr && doalias == 0 && param < 0) 948 if (afp->af_addreq != NULL && afp->af_ridreq != NULL) 949 bcopy((caddr_t)rqtosa(af_addreq), 950 (caddr_t)rqtosa(af_ridreq), 951 rqtosa(af_addreq)->sa_len); 952 doalias = param; 953 if (param < 0) { 954 clearaddr = 1; 955 newaddr = 0; 956 } else 957 clearaddr = 0; 958} 959 960/*ARGSUSED*/ 961void 962setifdstaddr(const char *addr, int param __unused, int s, 963 const struct afswtch *afp) 964{ 965 if (*afp->af_getaddr == NULL) 966 return; 967 (*afp->af_getaddr)(addr, DSTADDR); 968} 969 970/* 971 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion 972 * of the ifreq structure, which may confuse other parts of ifconfig. 973 * Make a private copy so we can avoid that. 974 */ 975void 976setifflags(const char *vname, int value, int s, const struct afswtch *afp) 977{ 978 struct ifreq my_ifr; 979 980 bcopy((char *)&ifr, (char *)&my_ifr, sizeof(struct ifreq)); 981 982 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) { 983 Perror("ioctl (SIOCGIFFLAGS)"); 984 exit(1); 985 } 986 strncpy(my_ifr.ifr_name, name, sizeof (my_ifr.ifr_name)); 987 flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16); 988 989 if (value < 0) { 990 value = -value; 991 flags &= ~value; 992 } else 993 flags |= value; 994 my_ifr.ifr_flags = flags & 0xffff; 995 my_ifr.ifr_flagshigh = flags >> 16; 996 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0) 997 Perror(vname); 998} 999 1000void 1001setifcap(const char *vname, int value, int s, const struct afswtch *afp) 1002{ 1003 1004 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) { 1005 Perror("ioctl (SIOCGIFCAP)"); 1006 exit(1); 1007 } 1008 flags = ifr.ifr_curcap; 1009 if (value < 0) { 1010 value = -value; 1011 flags &= ~value; 1012 } else 1013 flags |= value; 1014 ifr.ifr_reqcap = flags; 1015 if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0) 1016 Perror(vname); 1017} 1018 1019void 1020setifmetric(const char *val, int dummy __unused, int s, 1021 const struct afswtch *afp) 1022{ 1023 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1024 ifr.ifr_metric = atoi(val); 1025 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0) 1026 warn("ioctl (set metric)"); 1027} 1028 1029void 1030setifmtu(const char *val, int dummy __unused, int s, 1031 const struct afswtch *afp) 1032{ 1033 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name)); 1034 ifr.ifr_mtu = atoi(val); 1035 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0) 1036 warn("ioctl (set mtu)"); 1037} 1038 1039#define IFFBITS \ 1040"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \ 1041"\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \ 1042"\20MULTICAST\023MONITOR\024STATICARP" 1043 1044#define IFCAPBITS \ 1045"\003\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU" 1046 1047/* 1048 * Print the status of the interface. If an address family was 1049 * specified, show it and it only; otherwise, show them all. 1050 */ 1051void 1052status(const struct afswtch *afp, int addrcount, struct sockaddr_dl *sdl, 1053 struct if_msghdr *ifm, struct ifa_msghdr *ifam) 1054{ 1055 const struct afswtch *p = NULL; 1056 struct rt_addrinfo info; 1057 int allfamilies, s; 1058 struct ifstat ifs; 1059 1060 if (afp == NULL) { 1061 allfamilies = 1; 1062 afp = &afs[0]; 1063 } else 1064 allfamilies = 0; 1065 1066 ifr.ifr_addr.sa_family = afp->af_af == AF_LINK ? AF_INET : afp->af_af; 1067 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1068 1069 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0) 1070 err(1, "socket"); 1071 1072 printf("%s: ", name); 1073 printb("flags", flags, IFFBITS); 1074 if (ifm->ifm_data.ifi_metric) 1075 printf(" metric %ld", ifm->ifm_data.ifi_metric); 1076 if (ifm->ifm_data.ifi_mtu) 1077 printf(" mtu %ld", ifm->ifm_data.ifi_mtu); 1078 putchar('\n'); 1079 1080 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) { 1081 if (ifr.ifr_curcap != 0) { 1082 printb("\toptions", ifr.ifr_curcap, IFCAPBITS); 1083 putchar('\n'); 1084 } 1085 if (supmedia && ifr.ifr_reqcap != 0) { 1086 printf("\tcapability list:\n"); 1087 printb("\t\t", ifr.ifr_reqcap, IFCAPBITS); 1088 putchar('\n'); 1089 } 1090 } 1091 1092 tunnel_status(s); 1093 1094 while (addrcount > 0) { 1095 1096 info.rti_addrs = ifam->ifam_addrs; 1097 1098 /* Expand the compacted addresses */ 1099 rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam, 1100 &info); 1101 1102 if (!allfamilies) { 1103 if (afp->af_af == info.rti_info[RTAX_IFA]->sa_family) { 1104 p = afp; 1105 (*p->af_status)(s, &info); 1106 } 1107 } else for (p = afs; p->af_name; p++) { 1108 if (p->af_af == info.rti_info[RTAX_IFA]->sa_family) 1109 (*p->af_status)(s, &info); 1110 } 1111 addrcount--; 1112 ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen); 1113 } 1114 if (allfamilies || afp->af_status == link_status) 1115 link_status(s, (struct rt_addrinfo *)sdl); 1116#ifdef USE_IF_MEDIA 1117 if (allfamilies || afp->af_status == media_status) 1118 media_status(s, NULL); 1119#endif 1120#ifdef USE_VLANS 1121 if (allfamilies || afp->af_status == vlan_status) 1122 vlan_status(s, NULL); 1123#endif 1124#ifdef USE_IEEE80211 1125 if (allfamilies || afp->af_status == ieee80211_status) 1126 ieee80211_status(s, NULL); 1127#endif 1128#ifdef USE_MAC 1129 if (allfamilies || afp->af_status == maclabel_status) 1130 maclabel_status(s, NULL); 1131#endif 1132 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name); 1133 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0) 1134 printf("%s", ifs.ascii); 1135 1136 if (!allfamilies && !p && 1137#ifdef USE_IF_MEDIA 1138 afp->af_status != media_status && 1139#endif 1140 afp->af_status != link_status 1141#ifdef USE_VLANS 1142 && afp->af_status != vlan_status 1143#endif 1144 ) 1145 warnx("%s has no %s interface address!", name, afp->af_name); 1146 1147 close(s); 1148 return; 1149} 1150 1151void 1152tunnel_status(int s) 1153{ 1154 char psrcaddr[NI_MAXHOST]; 1155 char pdstaddr[NI_MAXHOST]; 1156 u_long srccmd, dstcmd; 1157 struct ifreq *ifrp; 1158 const char *ver = ""; 1159#ifdef NI_WITHSCOPEID 1160 const int niflag = NI_NUMERICHOST | NI_WITHSCOPEID; 1161#else 1162 const int niflag = NI_NUMERICHOST; 1163#endif 1164#ifdef INET6 1165 struct in6_ifreq in6_ifr; 1166 int s6; 1167#endif /* INET6 */ 1168 1169 psrcaddr[0] = pdstaddr[0] = '\0'; 1170 1171#ifdef INET6 1172 memset(&in6_ifr, 0, sizeof(in6_ifr)); 1173 strncpy(in6_ifr.ifr_name, name, IFNAMSIZ); 1174 s6 = socket(AF_INET6, SOCK_DGRAM, 0); 1175 if (s6 < 0) { 1176 srccmd = SIOCGIFPSRCADDR; 1177 dstcmd = SIOCGIFPDSTADDR; 1178 ifrp = 𝔦 1179 } else { 1180 close(s6); 1181 srccmd = SIOCGIFPSRCADDR_IN6; 1182 dstcmd = SIOCGIFPDSTADDR_IN6; 1183 ifrp = (struct ifreq *)&in6_ifr; 1184 } 1185#else /* INET6 */ 1186 srccmd = SIOCGIFPSRCADDR; 1187 dstcmd = SIOCGIFPDSTADDR; 1188 ifrp = 𝔦 1189#endif /* INET6 */ 1190 1191 if (ioctl(s, srccmd, (caddr_t)ifrp) < 0) 1192 return; 1193#ifdef INET6 1194 if (ifrp->ifr_addr.sa_family == AF_INET6) 1195 in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr); 1196#endif 1197 getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len, 1198 psrcaddr, sizeof(psrcaddr), 0, 0, niflag); 1199#ifdef INET6 1200 if (ifrp->ifr_addr.sa_family == AF_INET6) 1201 ver = "6"; 1202#endif 1203 1204 if (ioctl(s, dstcmd, (caddr_t)ifrp) < 0) 1205 return; 1206#ifdef INET6 1207 if (ifrp->ifr_addr.sa_family == AF_INET6) 1208 in6_fillscopeid((struct sockaddr_in6 *)&ifrp->ifr_addr); 1209#endif 1210 getnameinfo(&ifrp->ifr_addr, ifrp->ifr_addr.sa_len, 1211 pdstaddr, sizeof(pdstaddr), 0, 0, niflag); 1212 1213 printf("\ttunnel inet%s %s --> %s\n", ver, 1214 psrcaddr, pdstaddr); 1215} 1216 1217void 1218in_status(int s __unused, struct rt_addrinfo * info) 1219{ 1220 struct sockaddr_in *sin, null_sin; 1221 1222 memset(&null_sin, 0, sizeof(null_sin)); 1223 1224 sin = (struct sockaddr_in *)info->rti_info[RTAX_IFA]; 1225 printf("\tinet %s ", inet_ntoa(sin->sin_addr)); 1226 1227 if (flags & IFF_POINTOPOINT) { 1228 /* note RTAX_BRD overlap with IFF_BROADCAST */ 1229 sin = (struct sockaddr_in *)info->rti_info[RTAX_BRD]; 1230 if (!sin) 1231 sin = &null_sin; 1232 printf("--> %s ", inet_ntoa(sin->sin_addr)); 1233 } 1234 1235 sin = (struct sockaddr_in *)info->rti_info[RTAX_NETMASK]; 1236 if (!sin) 1237 sin = &null_sin; 1238 printf("netmask 0x%lx ", (unsigned long)ntohl(sin->sin_addr.s_addr)); 1239 1240 if (flags & IFF_BROADCAST) { 1241 /* note RTAX_BRD overlap with IFF_POINTOPOINT */ 1242 sin = (struct sockaddr_in *)info->rti_info[RTAX_BRD]; 1243 if (sin && sin->sin_addr.s_addr != 0) 1244 printf("broadcast %s", inet_ntoa(sin->sin_addr)); 1245 } 1246 putchar('\n'); 1247} 1248 1249#ifdef INET6 1250void 1251in6_fillscopeid(struct sockaddr_in6 *sin6) 1252{ 1253#if defined(__KAME__) && defined(KAME_SCOPEID) 1254 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1255 sin6->sin6_scope_id = 1256 ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]); 1257 sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0; 1258 } 1259#endif 1260} 1261 1262void 1263in6_status(int s __unused, struct rt_addrinfo * info) 1264{ 1265 struct sockaddr_in6 *sin, null_sin; 1266 struct in6_ifreq ifr6; 1267 int s6; 1268 u_int32_t flags6; 1269 struct in6_addrlifetime lifetime; 1270 time_t t = time(NULL); 1271 int error; 1272 u_int32_t scopeid; 1273 1274 memset(&null_sin, 0, sizeof(null_sin)); 1275 1276 sin = (struct sockaddr_in6 *)info->rti_info[RTAX_IFA]; 1277 strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name)); 1278 if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 1279 perror("ifconfig: socket"); 1280 return; 1281 } 1282 ifr6.ifr_addr = *sin; 1283 if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) { 1284 perror("ifconfig: ioctl(SIOCGIFAFLAG_IN6)"); 1285 close(s6); 1286 return; 1287 } 1288 flags6 = ifr6.ifr_ifru.ifru_flags6; 1289 memset(&lifetime, 0, sizeof(lifetime)); 1290 ifr6.ifr_addr = *sin; 1291 if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) { 1292 perror("ifconfig: ioctl(SIOCGIFALIFETIME_IN6)"); 1293 close(s6); 1294 return; 1295 } 1296 lifetime = ifr6.ifr_ifru.ifru_lifetime; 1297 close(s6); 1298 1299 /* XXX: embedded link local addr check */ 1300 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) && 1301 *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) { 1302 u_short index; 1303 1304 index = *(u_short *)&sin->sin6_addr.s6_addr[2]; 1305 *(u_short *)&sin->sin6_addr.s6_addr[2] = 0; 1306 if (sin->sin6_scope_id == 0) 1307 sin->sin6_scope_id = ntohs(index); 1308 } 1309 scopeid = sin->sin6_scope_id; 1310 1311 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf, 1312 sizeof(addr_buf), NULL, 0, 1313 NI_NUMERICHOST|NI_WITHSCOPEID); 1314 if (error != 0) 1315 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, 1316 sizeof(addr_buf)); 1317 printf("\tinet6 %s ", addr_buf); 1318 1319 if (flags & IFF_POINTOPOINT) { 1320 /* note RTAX_BRD overlap with IFF_BROADCAST */ 1321 sin = (struct sockaddr_in6 *)info->rti_info[RTAX_BRD]; 1322 /* 1323 * some of the interfaces do not have valid destination 1324 * address. 1325 */ 1326 if (sin && sin->sin6_family == AF_INET6) { 1327 int error; 1328 1329 /* XXX: embedded link local addr check */ 1330 if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) && 1331 *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) { 1332 u_short index; 1333 1334 index = *(u_short *)&sin->sin6_addr.s6_addr[2]; 1335 *(u_short *)&sin->sin6_addr.s6_addr[2] = 0; 1336 if (sin->sin6_scope_id == 0) 1337 sin->sin6_scope_id = ntohs(index); 1338 } 1339 1340 error = getnameinfo((struct sockaddr *)sin, 1341 sin->sin6_len, addr_buf, 1342 sizeof(addr_buf), NULL, 0, 1343 NI_NUMERICHOST|NI_WITHSCOPEID); 1344 if (error != 0) 1345 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, 1346 sizeof(addr_buf)); 1347 printf("--> %s ", addr_buf); 1348 } 1349 } 1350 1351 sin = (struct sockaddr_in6 *)info->rti_info[RTAX_NETMASK]; 1352 if (!sin) 1353 sin = &null_sin; 1354 printf("prefixlen %d ", prefix(&sin->sin6_addr, 1355 sizeof(struct in6_addr))); 1356 1357 if ((flags6 & IN6_IFF_ANYCAST) != 0) 1358 printf("anycast "); 1359 if ((flags6 & IN6_IFF_TENTATIVE) != 0) 1360 printf("tentative "); 1361 if ((flags6 & IN6_IFF_DUPLICATED) != 0) 1362 printf("duplicated "); 1363 if ((flags6 & IN6_IFF_DETACHED) != 0) 1364 printf("detached "); 1365 if ((flags6 & IN6_IFF_DEPRECATED) != 0) 1366 printf("deprecated "); 1367 if ((flags6 & IN6_IFF_AUTOCONF) != 0) 1368 printf("autoconf "); 1369 if ((flags6 & IN6_IFF_TEMPORARY) != 0) 1370 printf("temporary "); 1371 1372 if (scopeid) 1373 printf("scopeid 0x%x ", scopeid); 1374 1375 if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) { 1376 printf("pltime "); 1377 if (lifetime.ia6t_preferred) { 1378 printf("%s ", lifetime.ia6t_preferred < t 1379 ? "0" : sec2str(lifetime.ia6t_preferred - t)); 1380 } else 1381 printf("infty "); 1382 1383 printf("vltime "); 1384 if (lifetime.ia6t_expire) { 1385 printf("%s ", lifetime.ia6t_expire < t 1386 ? "0" : sec2str(lifetime.ia6t_expire - t)); 1387 } else 1388 printf("infty "); 1389 } 1390 1391 putchar('\n'); 1392} 1393#endif /*INET6*/ 1394 1395#ifndef NO_IPX 1396void 1397ipx_status(int s __unused, struct rt_addrinfo * info) 1398{ 1399 struct sockaddr_ipx *sipx, null_sipx; 1400 1401 memset(&null_sipx, 0, sizeof(null_sipx)); 1402 1403 sipx = (struct sockaddr_ipx *)info->rti_info[RTAX_IFA]; 1404 printf("\tipx %s ", ipx_ntoa(sipx->sipx_addr)); 1405 1406 if (flags & IFF_POINTOPOINT) { 1407 sipx = (struct sockaddr_ipx *)info->rti_info[RTAX_BRD]; 1408 if (!sipx) 1409 sipx = &null_sipx; 1410 printf("--> %s ", ipx_ntoa(sipx->sipx_addr)); 1411 } 1412 putchar('\n'); 1413} 1414#endif 1415 1416void 1417at_status(int s __unused, struct rt_addrinfo * info) 1418{ 1419 struct sockaddr_at *sat, null_sat; 1420 struct netrange *nr; 1421 1422 memset(&null_sat, 0, sizeof(null_sat)); 1423 1424 sat = (struct sockaddr_at *)info->rti_info[RTAX_IFA]; 1425 nr = &sat->sat_range.r_netrange; 1426 printf("\tatalk %d.%d range %d-%d phase %d", 1427 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node, 1428 ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet), nr->nr_phase); 1429 if (flags & IFF_POINTOPOINT) { 1430 /* note RTAX_BRD overlap with IFF_BROADCAST */ 1431 sat = (struct sockaddr_at *)info->rti_info[RTAX_BRD]; 1432 if (!sat) 1433 sat = &null_sat; 1434 printf("--> %d.%d", 1435 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node); 1436 } 1437 if (flags & IFF_BROADCAST) { 1438 /* note RTAX_BRD overlap with IFF_POINTOPOINT */ 1439 sat = (struct sockaddr_at *)info->rti_info[RTAX_BRD]; 1440 if (sat) 1441 printf(" broadcast %d.%d", 1442 ntohs(sat->sat_addr.s_net), 1443 sat->sat_addr.s_node); 1444 } 1445 1446 putchar('\n'); 1447} 1448 1449void 1450link_status(int s __unused, struct rt_addrinfo *info) 1451{ 1452 struct sockaddr_dl *sdl = (struct sockaddr_dl *)info; 1453 1454 if (sdl->sdl_alen > 0) { 1455 if (sdl->sdl_type == IFT_ETHER && 1456 sdl->sdl_alen == ETHER_ADDR_LEN) 1457 printf("\tether %s\n", 1458 ether_ntoa((struct ether_addr *)LLADDR(sdl))); 1459 else { 1460 int n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0; 1461 1462 printf("\tlladdr %s\n", link_ntoa(sdl) + n); 1463 } 1464 } 1465} 1466 1467void 1468Perror(const char *cmd) 1469{ 1470 switch (errno) { 1471 1472 case ENXIO: 1473 errx(1, "%s: no such interface", cmd); 1474 break; 1475 1476 case EPERM: 1477 errx(1, "%s: permission denied", cmd); 1478 break; 1479 1480 default: 1481 err(1, "%s", cmd); 1482 } 1483} 1484 1485#define SIN(x) ((struct sockaddr_in *) &(x)) 1486struct sockaddr_in *sintab[] = { 1487SIN(ridreq.ifr_addr), SIN(addreq.ifra_addr), 1488SIN(addreq.ifra_mask), SIN(addreq.ifra_broadaddr)}; 1489 1490void 1491in_getaddr(const char *s, int which) 1492{ 1493 struct sockaddr_in *sin = sintab[which]; 1494 struct hostent *hp; 1495 struct netent *np; 1496 1497 sin->sin_len = sizeof(*sin); 1498 if (which != MASK) 1499 sin->sin_family = AF_INET; 1500 1501 if (which == ADDR) { 1502 char *p = NULL; 1503 1504 if((p = strrchr(s, '/')) != NULL) { 1505 /* address is `name/masklen' */ 1506 int masklen; 1507 int ret; 1508 struct sockaddr_in *min = sintab[MASK]; 1509 *p = '\0'; 1510 ret = sscanf(p+1, "%u", &masklen); 1511 if(ret != 1 || (masklen < 0 || masklen > 32)) { 1512 *p = '/'; 1513 errx(1, "%s: bad value", s); 1514 } 1515 min->sin_len = sizeof(*min); 1516 min->sin_addr.s_addr = htonl(~((1LL << (32 - masklen)) - 1) & 1517 0xffffffff); 1518 } 1519 } 1520 1521 if (inet_aton(s, &sin->sin_addr)) 1522 return; 1523 if ((hp = gethostbyname(s)) != 0) 1524 bcopy(hp->h_addr, (char *)&sin->sin_addr, 1525 MIN(hp->h_length, sizeof(sin->sin_addr))); 1526 else if ((np = getnetbyname(s)) != 0) 1527 sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY); 1528 else 1529 errx(1, "%s: bad value", s); 1530} 1531 1532#ifdef INET6 1533#define SIN6(x) ((struct sockaddr_in6 *) &(x)) 1534struct sockaddr_in6 *sin6tab[] = { 1535SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr), 1536SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)}; 1537 1538void 1539in6_getaddr(const char *s, int which) 1540{ 1541 struct sockaddr_in6 *sin = sin6tab[which]; 1542 struct addrinfo hints, *res; 1543 int error = -1; 1544 1545 newaddr &= 1; 1546 1547 sin->sin6_len = sizeof(*sin); 1548 if (which != MASK) 1549 sin->sin6_family = AF_INET6; 1550 1551 if (which == ADDR) { 1552 char *p = NULL; 1553 if((p = strrchr(s, '/')) != NULL) { 1554 *p = '\0'; 1555 in6_getprefix(p + 1, MASK); 1556 explicit_prefix = 1; 1557 } 1558 } 1559 1560 if (sin->sin6_family == AF_INET6) { 1561 bzero(&hints, sizeof(struct addrinfo)); 1562 hints.ai_family = AF_INET6; 1563 error = getaddrinfo(s, NULL, &hints, &res); 1564 } 1565 if (error != 0) { 1566 if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1) 1567 errx(1, "%s: bad value", s); 1568 } else 1569 bcopy(res->ai_addr, sin, res->ai_addrlen); 1570} 1571 1572void 1573in6_getprefix(const char *plen, int which) 1574{ 1575 struct sockaddr_in6 *sin = sin6tab[which]; 1576 u_char *cp; 1577 int len = atoi(plen); 1578 1579 if ((len < 0) || (len > 128)) 1580 errx(1, "%s: bad value", plen); 1581 sin->sin6_len = sizeof(*sin); 1582 if (which != MASK) 1583 sin->sin6_family = AF_INET6; 1584 if ((len == 0) || (len == 128)) { 1585 memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); 1586 return; 1587 } 1588 memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); 1589 for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) 1590 *cp++ = 0xff; 1591 *cp = 0xff << (8 - len); 1592} 1593#endif 1594 1595/* 1596 * Print a value a la the %b format of the kernel's printf 1597 */ 1598void 1599printb(const char *s, unsigned v, const char *bits) 1600{ 1601 int i, any = 0; 1602 char c; 1603 1604 if (bits && *bits == 8) 1605 printf("%s=%o", s, v); 1606 else 1607 printf("%s=%x", s, v); 1608 bits++; 1609 if (bits) { 1610 putchar('<'); 1611 while ((i = *bits++) != '\0') { 1612 if (v & (1 << (i-1))) { 1613 if (any) 1614 putchar(','); 1615 any = 1; 1616 for (; (c = *bits) > 32; bits++) 1617 putchar(c); 1618 } else 1619 for (; *bits > 32; bits++) 1620 ; 1621 } 1622 putchar('>'); 1623 } 1624} 1625 1626#ifndef NO_IPX 1627#define SIPX(x) ((struct sockaddr_ipx *) &(x)) 1628struct sockaddr_ipx *sipxtab[] = { 1629SIPX(ridreq.ifr_addr), SIPX(addreq.ifra_addr), 1630SIPX(addreq.ifra_mask), SIPX(addreq.ifra_broadaddr)}; 1631 1632void 1633ipx_getaddr(const char *addr, int which) 1634{ 1635 struct sockaddr_ipx *sipx = sipxtab[which]; 1636 1637 sipx->sipx_family = AF_IPX; 1638 sipx->sipx_len = sizeof(*sipx); 1639 sipx->sipx_addr = ipx_addr(addr); 1640 if (which == MASK) 1641 printf("Attempt to set IPX netmask will be ineffectual\n"); 1642} 1643#endif 1644 1645void 1646at_getaddr(const char *addr, int which) 1647{ 1648 struct sockaddr_at *sat = (struct sockaddr_at *) &addreq.ifra_addr; 1649 u_int net, node; 1650 1651 sat->sat_family = AF_APPLETALK; 1652 sat->sat_len = sizeof(*sat); 1653 if (which == MASK) 1654 errx(1, "AppleTalk does not use netmasks"); 1655 if (sscanf(addr, "%u.%u", &net, &node) != 2 1656 || net > 0xffff || node > 0xfe) 1657 errx(1, "%s: illegal address", addr); 1658 sat->sat_addr.s_net = htons(net); 1659 sat->sat_addr.s_node = node; 1660} 1661 1662void 1663link_getaddr(const char *addr, int which) 1664{ 1665 char *temp; 1666 struct sockaddr_dl sdl; 1667 struct sockaddr *sa = &ridreq.ifr_addr; 1668 1669 if (which != ADDR) 1670 errx(1, "can't set link-level netmask or broadcast"); 1671 if ((temp = malloc(strlen(addr) + 1)) == NULL) 1672 errx(1, "malloc failed"); 1673 temp[0] = ':'; 1674 strcpy(temp + 1, addr); 1675 sdl.sdl_len = sizeof(sdl); 1676 link_addr(temp, &sdl); 1677 free(temp); 1678 if (sdl.sdl_alen > sizeof(sa->sa_data)) 1679 errx(1, "malformed link-level address"); 1680 sa->sa_family = AF_LINK; 1681 sa->sa_len = sdl.sdl_alen; 1682 bcopy(LLADDR(&sdl), sa->sa_data, sdl.sdl_alen); 1683} 1684 1685/* XXX FIXME -- should use strtoul for better parsing. */ 1686void 1687setatrange(const char *range, int dummy __unused, int s, 1688 const struct afswtch *afp) 1689{ 1690 u_int first = 123, last = 123; 1691 1692 if (sscanf(range, "%u-%u", &first, &last) != 2 1693 || first == 0 || first > 0xffff 1694 || last == 0 || last > 0xffff || first > last) 1695 errx(1, "%s: illegal net range: %u-%u", range, first, last); 1696 at_nr.nr_firstnet = htons(first); 1697 at_nr.nr_lastnet = htons(last); 1698} 1699 1700void 1701setatphase(const char *phase, int dummy __unused, int s, 1702 const struct afswtch *afp) 1703{ 1704 if (!strcmp(phase, "1")) 1705 at_nr.nr_phase = 1; 1706 else if (!strcmp(phase, "2")) 1707 at_nr.nr_phase = 2; 1708 else 1709 errx(1, "%s: illegal phase", phase); 1710} 1711 1712void 1713checkatrange(struct sockaddr_at *sat) 1714{ 1715 if (at_nr.nr_phase == 0) 1716 at_nr.nr_phase = 2; /* Default phase 2 */ 1717 if (at_nr.nr_firstnet == 0) 1718 at_nr.nr_firstnet = /* Default range of one */ 1719 at_nr.nr_lastnet = sat->sat_addr.s_net; 1720printf("\tatalk %d.%d range %d-%d phase %d\n", 1721 ntohs(sat->sat_addr.s_net), sat->sat_addr.s_node, 1722 ntohs(at_nr.nr_firstnet), ntohs(at_nr.nr_lastnet), at_nr.nr_phase); 1723 if ((u_short) ntohs(at_nr.nr_firstnet) > 1724 (u_short) ntohs(sat->sat_addr.s_net) 1725 || (u_short) ntohs(at_nr.nr_lastnet) < 1726 (u_short) ntohs(sat->sat_addr.s_net)) 1727 errx(1, "AppleTalk address is not in range"); 1728 sat->sat_range.r_netrange = at_nr; 1729} 1730 1731#ifdef INET6 1732int 1733prefix(void *val, int size) 1734{ 1735 u_char *name = (u_char *)val; 1736 int byte, bit, plen = 0; 1737 1738 for (byte = 0; byte < size; byte++, plen += 8) 1739 if (name[byte] != 0xff) 1740 break; 1741 if (byte == size) 1742 return (plen); 1743 for (bit = 7; bit != 0; bit--, plen++) 1744 if (!(name[byte] & (1 << bit))) 1745 break; 1746 for (; bit != 0; bit--) 1747 if (name[byte] & (1 << bit)) 1748 return(0); 1749 byte++; 1750 for (; byte < size; byte++) 1751 if (name[byte]) 1752 return(0); 1753 return (plen); 1754} 1755 1756static char * 1757sec2str(time_t total) 1758{ 1759 static char result[256]; 1760 int days, hours, mins, secs; 1761 int first = 1; 1762 char *p = result; 1763 1764 if (0) { 1765 days = total / 3600 / 24; 1766 hours = (total / 3600) % 24; 1767 mins = (total / 60) % 60; 1768 secs = total % 60; 1769 1770 if (days) { 1771 first = 0; 1772 p += sprintf(p, "%dd", days); 1773 } 1774 if (!first || hours) { 1775 first = 0; 1776 p += sprintf(p, "%dh", hours); 1777 } 1778 if (!first || mins) { 1779 first = 0; 1780 p += sprintf(p, "%dm", mins); 1781 } 1782 sprintf(p, "%ds", secs); 1783 } else 1784 sprintf(result, "%lu", (unsigned long)total); 1785 1786 return(result); 1787} 1788#endif /*INET6*/ 1789 1790void 1791ifmaybeload(char *name) 1792{ 1793 struct module_stat mstat; 1794 int fileid, modid; 1795 char ifkind[35], *cp, *dp; 1796 1797 /* turn interface and unit into module name */ 1798 strcpy(ifkind, "if_"); 1799 for (cp = name, dp = ifkind + 3; 1800 (*cp != 0) && !isdigit(*cp); cp++, dp++) 1801 *dp = *cp; 1802 *dp = 0; 1803 1804 /* scan files in kernel */ 1805 mstat.version = sizeof(struct module_stat); 1806 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) { 1807 /* scan modules in file */ 1808 for (modid = kldfirstmod(fileid); modid > 0; 1809 modid = modfnext(modid)) { 1810 if (modstat(modid, &mstat) < 0) 1811 continue; 1812 /* strip bus name if present */ 1813 if ((cp = strchr(mstat.name, '/')) != NULL) { 1814 cp++; 1815 } else { 1816 cp = mstat.name; 1817 } 1818 /* already loaded? */ 1819 if (!strncmp(name, cp, strlen(cp))) 1820 return; 1821 } 1822 } 1823 1824 /* not present, we should try to load it */ 1825 kldload(ifkind); 1826} 1827 1828void 1829list_cloners(void) 1830{ 1831 struct if_clonereq ifcr; 1832 char *cp, *buf; 1833 int idx; 1834 int s; 1835 1836 s = socket(AF_INET, SOCK_DGRAM, 0); 1837 if (s == -1) 1838 err(1, "socket"); 1839 1840 memset(&ifcr, 0, sizeof(ifcr)); 1841 1842 if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0) 1843 err(1, "SIOCIFGCLONERS for count"); 1844 1845 buf = malloc(ifcr.ifcr_total * IFNAMSIZ); 1846 if (buf == NULL) 1847 err(1, "unable to allocate cloner name buffer"); 1848 1849 ifcr.ifcr_count = ifcr.ifcr_total; 1850 ifcr.ifcr_buffer = buf; 1851 1852 if (ioctl(s, SIOCIFGCLONERS, &ifcr) < 0) 1853 err(1, "SIOCIFGCLONERS for names"); 1854 1855 /* 1856 * In case some disappeared in the mean time, clamp it down. 1857 */ 1858 if (ifcr.ifcr_count > ifcr.ifcr_total) 1859 ifcr.ifcr_count = ifcr.ifcr_total; 1860 1861 for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) { 1862 if (idx > 0) 1863 putchar(' '); 1864 printf("%s", cp); 1865 } 1866 1867 putchar('\n'); 1868 free(buf); 1869} 1870 1871void 1872clone_create(void) 1873{ 1874 int s; 1875 1876 s = socket(AF_INET, SOCK_DGRAM, 0); 1877 if (s == -1) 1878 err(1, "socket"); 1879 1880 memset(&ifr, 0, sizeof(ifr)); 1881 (void) strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1882 if (ioctl(s, SIOCIFCREATE, &ifr) < 0) 1883 err(1, "SIOCIFCREATE"); 1884 1885 if (strcmp(name, ifr.ifr_name) != 0) { 1886 printf("%s\n", ifr.ifr_name); 1887 strlcpy(name, ifr.ifr_name, sizeof(name)); 1888 } 1889 1890 close(s); 1891} 1892 1893void 1894clone_destroy(const char *val, int d, int s, const struct afswtch *rafp) 1895{ 1896 1897 (void) strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); 1898 if (ioctl(s, SIOCIFDESTROY, &ifr) < 0) 1899 err(1, "SIOCIFDESTROY"); 1900} 1901