1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef lint 33 static const char rcsid[] = 34 "$FreeBSD$"; 35 #endif /* not lint */ 36 37 #include <sys/param.h> 38 #include <sys/ioctl.h> 39 #include <sys/socket.h> 40 #include <net/if.h> 41 42 #include <err.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <unistd.h> 47 #include <time.h> 48 #include <ifaddrs.h> 49 50 #include <arpa/inet.h> 51 52 #include <netinet/in.h> 53 #include <netinet/in_var.h> 54 #include <arpa/inet.h> 55 #include <netdb.h> 56 57 #include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */ 58 59 #include "ifconfig.h" 60 #include "ifconfig_netlink.h" 61 62 static struct in6_ifreq in6_ridreq; 63 static struct in6_aliasreq in6_addreq = 64 { .ifra_flags = 0, 65 .ifra_lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } }; 66 static int ip6lifetime; 67 68 static int prefix(void *, int); 69 static char *sec2str(time_t); 70 static int explicit_prefix = 0; 71 extern char *f_inet6, *f_addr; 72 73 extern void setnd6flags(const char *, int, int, const struct afswtch *); 74 extern void setnd6defif(const char *, int, int, const struct afswtch *); 75 extern void nd6_status(int); 76 77 static char addr_buf[NI_MAXHOST]; /*for getnameinfo()*/ 78 79 static void 80 setifprefixlen(const char *addr, int dummy __unused, int s, 81 const struct afswtch *afp) 82 { 83 if (afp->af_getprefix != NULL) 84 afp->af_getprefix(addr, MASK); 85 explicit_prefix = 1; 86 } 87 88 static void 89 setip6flags(const char *dummyaddr __unused, int flag, int dummysoc __unused, 90 const struct afswtch *afp) 91 { 92 if (afp->af_af != AF_INET6) 93 err(1, "address flags can be set only for inet6 addresses"); 94 95 if (flag < 0) 96 in6_addreq.ifra_flags &= ~(-flag); 97 else 98 in6_addreq.ifra_flags |= flag; 99 } 100 101 static void 102 setip6lifetime(const char *cmd, const char *val, int s, 103 const struct afswtch *afp) 104 { 105 struct timespec now; 106 time_t newval; 107 char *ep; 108 109 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 110 newval = (time_t)strtoul(val, &ep, 0); 111 if (val == ep) 112 errx(1, "invalid %s", cmd); 113 if (afp->af_af != AF_INET6) 114 errx(1, "%s not allowed for the AF", cmd); 115 if (strcmp(cmd, "vltime") == 0) { 116 in6_addreq.ifra_lifetime.ia6t_expire = now.tv_sec + newval; 117 in6_addreq.ifra_lifetime.ia6t_vltime = newval; 118 } else if (strcmp(cmd, "pltime") == 0) { 119 in6_addreq.ifra_lifetime.ia6t_preferred = now.tv_sec + newval; 120 in6_addreq.ifra_lifetime.ia6t_pltime = newval; 121 } 122 } 123 124 static void 125 setip6pltime(const char *seconds, int dummy __unused, int s, 126 const struct afswtch *afp) 127 { 128 setip6lifetime("pltime", seconds, s, afp); 129 } 130 131 static void 132 setip6vltime(const char *seconds, int dummy __unused, int s, 133 const struct afswtch *afp) 134 { 135 setip6lifetime("vltime", seconds, s, afp); 136 } 137 138 static void 139 setip6eui64(const char *cmd, int dummy __unused, int s, 140 const struct afswtch *afp) 141 { 142 struct ifaddrs *ifap, *ifa; 143 const struct sockaddr_in6 *sin6 = NULL; 144 const struct in6_addr *lladdr = NULL; 145 struct in6_addr *in6; 146 147 if (afp->af_af != AF_INET6) 148 errx(EXIT_FAILURE, "%s not allowed for the AF", cmd); 149 in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr; 150 if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0) 151 errx(EXIT_FAILURE, "interface index is already filled"); 152 if (getifaddrs(&ifap) != 0) 153 err(EXIT_FAILURE, "getifaddrs"); 154 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 155 if (ifa->ifa_addr->sa_family == AF_INET6 && 156 strcmp(ifa->ifa_name, name) == 0) { 157 sin6 = (const struct sockaddr_in6 *)ifa->ifa_addr; 158 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 159 lladdr = &sin6->sin6_addr; 160 break; 161 } 162 } 163 } 164 if (!lladdr) 165 errx(EXIT_FAILURE, "could not determine link local address"); 166 167 memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8); 168 169 freeifaddrs(ifap); 170 } 171 172 static void 173 print_addr(struct sockaddr_in6 *sin) 174 { 175 int error, n_flags; 176 177 if (f_addr != NULL && strcmp(f_addr, "fqdn") == 0) 178 n_flags = 0; 179 else if (f_addr != NULL && strcmp(f_addr, "host") == 0) 180 n_flags = NI_NOFQDN; 181 else 182 n_flags = NI_NUMERICHOST; 183 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, 184 addr_buf, sizeof(addr_buf), NULL, 0, 185 n_flags); 186 if (error != 0) 187 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, 188 sizeof(addr_buf)); 189 printf("\tinet6 %s", addr_buf); 190 } 191 192 static void 193 print_p2p(struct sockaddr_in6 *sin) 194 { 195 int error; 196 197 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf, 198 sizeof(addr_buf), NULL, 0, NI_NUMERICHOST); 199 200 if (error != 0) 201 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, sizeof(addr_buf)); 202 printf(" --> %s", addr_buf); 203 } 204 205 static void 206 print_mask(int plen) 207 { 208 if (f_inet6 != NULL && strcmp(f_inet6, "cidr") == 0) 209 printf("/%d", plen); 210 else 211 printf(" prefixlen %d", plen); 212 } 213 214 static void 215 print_flags(int flags6) 216 { 217 if ((flags6 & IN6_IFF_ANYCAST) != 0) 218 printf(" anycast"); 219 if ((flags6 & IN6_IFF_TENTATIVE) != 0) 220 printf(" tentative"); 221 if ((flags6 & IN6_IFF_DUPLICATED) != 0) 222 printf(" duplicated"); 223 if ((flags6 & IN6_IFF_DETACHED) != 0) 224 printf(" detached"); 225 if ((flags6 & IN6_IFF_DEPRECATED) != 0) 226 printf(" deprecated"); 227 if ((flags6 & IN6_IFF_AUTOCONF) != 0) 228 printf(" autoconf"); 229 if ((flags6 & IN6_IFF_TEMPORARY) != 0) 230 printf(" temporary"); 231 if ((flags6 & IN6_IFF_PREFER_SOURCE) != 0) 232 printf(" prefer_source"); 233 234 } 235 236 static void 237 print_lifetime(const char *prepend, time_t px_time, struct timespec *now) 238 { 239 printf(" %s", prepend); 240 if (px_time == 0) 241 printf(" infty"); 242 243 printf(" %s", px_time < now->tv_sec ? "0" : sec2str(px_time - now->tv_sec)); 244 } 245 246 #ifdef WITHOUT_NETLINK 247 static void 248 in6_status(int s __unused, const struct ifaddrs *ifa) 249 { 250 struct sockaddr_in6 *sin, null_sin = {}; 251 struct in6_ifreq ifr6; 252 int s6; 253 u_int32_t flags6; 254 struct in6_addrlifetime lifetime; 255 256 sin = (struct sockaddr_in6 *)ifa->ifa_addr; 257 if (sin == NULL) 258 return; 259 260 strlcpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name)); 261 if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 262 warn("socket(AF_INET6,SOCK_DGRAM)"); 263 return; 264 } 265 ifr6.ifr_addr = *sin; 266 if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) { 267 warn("ioctl(SIOCGIFAFLAG_IN6)"); 268 close(s6); 269 return; 270 } 271 flags6 = ifr6.ifr_ifru.ifru_flags6; 272 memset(&lifetime, 0, sizeof(lifetime)); 273 ifr6.ifr_addr = *sin; 274 if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) { 275 warn("ioctl(SIOCGIFALIFETIME_IN6)"); 276 close(s6); 277 return; 278 } 279 lifetime = ifr6.ifr_ifru.ifru_lifetime; 280 close(s6); 281 282 print_addr(sin); 283 284 if (ifa->ifa_flags & IFF_POINTOPOINT) { 285 sin = (struct sockaddr_in6 *)ifa->ifa_dstaddr; 286 /* 287 * some of the interfaces do not have valid destination 288 * address. 289 */ 290 if (sin != NULL && sin->sin6_family == AF_INET6) 291 print_p2p(sin); 292 } 293 294 sin = (struct sockaddr_in6 *)ifa->ifa_netmask; 295 if (sin == NULL) 296 sin = &null_sin; 297 print_mask(prefix(&sin->sin6_addr, sizeof(struct in6_addr))); 298 299 print_flags(flags6); 300 301 if (((struct sockaddr_in6 *)(ifa->ifa_addr))->sin6_scope_id) 302 printf(" scopeid 0x%x", 303 ((struct sockaddr_in6 *)(ifa->ifa_addr))->sin6_scope_id); 304 305 if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) { 306 struct timespec now; 307 308 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 309 print_lifetime("pltime", lifetime.ia6t_preferred, &now); 310 print_lifetime("vltime", lifetime.ia6t_expire, &now); 311 } 312 313 print_vhid(ifa, " "); 314 315 putchar('\n'); 316 } 317 318 #else 319 static void 320 show_lifetime(struct ifa_cacheinfo *ci) 321 { 322 struct timespec now; 323 uint32_t pl, vl; 324 325 if (ci == NULL) 326 return; 327 328 int count = ci->ifa_prefered != ND6_INFINITE_LIFETIME; 329 count += ci->ifa_valid != ND6_INFINITE_LIFETIME; 330 if (count == 0) 331 return; 332 333 pl = (ci->ifa_prefered == ND6_INFINITE_LIFETIME) ? 0 : ci->ifa_prefered; 334 vl = (ci->ifa_valid == ND6_INFINITE_LIFETIME) ? 0 : ci->ifa_valid; 335 336 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 337 print_lifetime("pltime", pl + now.tv_sec, &now); 338 print_lifetime("vltime", vl + now.tv_sec, &now); 339 } 340 341 static struct sockaddr_in6 * 342 satosin6(struct sockaddr *sa) 343 { 344 return ((struct sockaddr_in6 *)(void *)sa); 345 } 346 347 static void 348 in6_status_nl(struct ifconfig_args *args __unused, struct io_handler *h, 349 if_link_t *link, if_addr_t *ifa) 350 { 351 int plen = ifa->ifa_prefixlen; 352 uint32_t scopeid; 353 354 if (ifa->ifa_local == NULL) { 355 /* Non-P2P address */ 356 scopeid = satosin6(ifa->ifa_address)->sin6_scope_id; 357 print_addr(satosin6(ifa->ifa_address)); 358 } else { 359 scopeid = satosin6(ifa->ifa_local)->sin6_scope_id; 360 print_addr(satosin6(ifa->ifa_local)); 361 print_p2p(satosin6(ifa->ifa_address)); 362 } 363 364 print_mask(plen); 365 print_flags(ifa->ifaf_flags); 366 367 if (scopeid != 0) 368 printf(" scopeid 0x%x", scopeid); 369 370 show_lifetime(ifa->ifa_cacheinfo); 371 372 if (ifa->ifaf_vhid != 0) 373 printf(" vhid %d", ifa->ifaf_vhid); 374 375 putchar('\n'); 376 } 377 #endif 378 379 #define SIN6(x) ((struct sockaddr_in6 *) &(x)) 380 static struct sockaddr_in6 *sin6tab[] = { 381 SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr), 382 SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr) 383 }; 384 385 static void 386 in6_getprefix(const char *plen, int which) 387 { 388 struct sockaddr_in6 *sin = sin6tab[which]; 389 u_char *cp; 390 int len = atoi(plen); 391 392 if ((len < 0) || (len > 128)) 393 errx(1, "%s: bad value", plen); 394 sin->sin6_len = sizeof(*sin); 395 if (which != MASK) 396 sin->sin6_family = AF_INET6; 397 if ((len == 0) || (len == 128)) { 398 memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); 399 return; 400 } 401 memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); 402 for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) 403 *cp++ = 0xff; 404 *cp = 0xff << (8 - len); 405 } 406 407 static void 408 in6_getaddr(const char *s, int which) 409 { 410 struct sockaddr_in6 *sin = sin6tab[which]; 411 struct addrinfo hints, *res; 412 int error = -1; 413 414 newaddr &= 1; 415 416 sin->sin6_len = sizeof(*sin); 417 if (which != MASK) 418 sin->sin6_family = AF_INET6; 419 420 if (which == ADDR) { 421 char *p = NULL; 422 if((p = strrchr(s, '/')) != NULL) { 423 *p = '\0'; 424 in6_getprefix(p + 1, MASK); 425 explicit_prefix = 1; 426 } 427 } 428 429 if (sin->sin6_family == AF_INET6) { 430 bzero(&hints, sizeof(struct addrinfo)); 431 hints.ai_family = AF_INET6; 432 error = getaddrinfo(s, NULL, &hints, &res); 433 if (error != 0) { 434 if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1) 435 errx(1, "%s: bad value", s); 436 } else { 437 bcopy(res->ai_addr, sin, res->ai_addrlen); 438 freeaddrinfo(res); 439 } 440 } 441 } 442 443 static int 444 prefix(void *val, int size) 445 { 446 u_char *name = (u_char *)val; 447 int byte, bit, plen = 0; 448 449 for (byte = 0; byte < size; byte++, plen += 8) 450 if (name[byte] != 0xff) 451 break; 452 if (byte == size) 453 return (plen); 454 for (bit = 7; bit != 0; bit--, plen++) 455 if (!(name[byte] & (1 << bit))) 456 break; 457 for (; bit != 0; bit--) 458 if (name[byte] & (1 << bit)) 459 return(0); 460 byte++; 461 for (; byte < size; byte++) 462 if (name[byte]) 463 return(0); 464 return (plen); 465 } 466 467 static char * 468 sec2str(time_t total) 469 { 470 static char result[256]; 471 int days, hours, mins, secs; 472 int first = 1; 473 char *p = result; 474 475 if (0) { 476 days = total / 3600 / 24; 477 hours = (total / 3600) % 24; 478 mins = (total / 60) % 60; 479 secs = total % 60; 480 481 if (days) { 482 first = 0; 483 p += sprintf(p, "%dd", days); 484 } 485 if (!first || hours) { 486 first = 0; 487 p += sprintf(p, "%dh", hours); 488 } 489 if (!first || mins) { 490 first = 0; 491 p += sprintf(p, "%dm", mins); 492 } 493 sprintf(p, "%ds", secs); 494 } else 495 sprintf(result, "%lu", (unsigned long)total); 496 497 return(result); 498 } 499 500 static void 501 in6_postproc(int s, const struct afswtch *afp, int newaddr __unused, 502 int ifflags __unused) 503 { 504 if (explicit_prefix == 0) { 505 /* Aggregatable address architecture defines all prefixes 506 are 64. So, it is convenient to set prefixlen to 64 if 507 it is not specified. */ 508 setifprefixlen("64", 0, s, afp); 509 /* in6_getprefix("64", MASK) if MASK is available here... */ 510 } 511 } 512 513 static void 514 in6_status_tunnel(int s) 515 { 516 char src[NI_MAXHOST]; 517 char dst[NI_MAXHOST]; 518 struct in6_ifreq in6_ifr; 519 const struct sockaddr *sa = (const struct sockaddr *) &in6_ifr.ifr_addr; 520 521 memset(&in6_ifr, 0, sizeof(in6_ifr)); 522 strlcpy(in6_ifr.ifr_name, name, sizeof(in6_ifr.ifr_name)); 523 524 if (ioctl(s, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6_ifr) < 0) 525 return; 526 if (sa->sa_family != AF_INET6) 527 return; 528 if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0, 529 NI_NUMERICHOST) != 0) 530 src[0] = '\0'; 531 532 if (ioctl(s, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6_ifr) < 0) 533 return; 534 if (sa->sa_family != AF_INET6) 535 return; 536 if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0, 537 NI_NUMERICHOST) != 0) 538 dst[0] = '\0'; 539 540 printf("\ttunnel inet6 %s --> %s\n", src, dst); 541 } 542 543 static void 544 in6_set_tunnel(int s, struct addrinfo *srcres, struct addrinfo *dstres) 545 { 546 struct in6_aliasreq in6_addreq; 547 548 memset(&in6_addreq, 0, sizeof(in6_addreq)); 549 strlcpy(in6_addreq.ifra_name, name, sizeof(in6_addreq.ifra_name)); 550 memcpy(&in6_addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len); 551 memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr, 552 dstres->ai_addr->sa_len); 553 554 if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0) 555 warn("SIOCSIFPHYADDR_IN6"); 556 } 557 558 static void 559 in6_set_vhid(int vhid) 560 { 561 in6_addreq.ifra_vhid = vhid; 562 } 563 564 static struct cmd inet6_cmds[] = { 565 DEF_CMD_ARG("prefixlen", setifprefixlen), 566 DEF_CMD("anycast", IN6_IFF_ANYCAST, setip6flags), 567 DEF_CMD("tentative", IN6_IFF_TENTATIVE, setip6flags), 568 DEF_CMD("-tentative", -IN6_IFF_TENTATIVE, setip6flags), 569 DEF_CMD("deprecated", IN6_IFF_DEPRECATED, setip6flags), 570 DEF_CMD("-deprecated", -IN6_IFF_DEPRECATED, setip6flags), 571 DEF_CMD("autoconf", IN6_IFF_AUTOCONF, setip6flags), 572 DEF_CMD("-autoconf", -IN6_IFF_AUTOCONF, setip6flags), 573 DEF_CMD("prefer_source",IN6_IFF_PREFER_SOURCE, setip6flags), 574 DEF_CMD("-prefer_source",-IN6_IFF_PREFER_SOURCE,setip6flags), 575 DEF_CMD("accept_rtadv", ND6_IFF_ACCEPT_RTADV, setnd6flags), 576 DEF_CMD("-accept_rtadv",-ND6_IFF_ACCEPT_RTADV, setnd6flags), 577 DEF_CMD("no_radr", ND6_IFF_NO_RADR, setnd6flags), 578 DEF_CMD("-no_radr", -ND6_IFF_NO_RADR, setnd6flags), 579 DEF_CMD("defaultif", 1, setnd6defif), 580 DEF_CMD("-defaultif", -1, setnd6defif), 581 DEF_CMD("ifdisabled", ND6_IFF_IFDISABLED, setnd6flags), 582 DEF_CMD("-ifdisabled", -ND6_IFF_IFDISABLED, setnd6flags), 583 DEF_CMD("nud", ND6_IFF_PERFORMNUD, setnd6flags), 584 DEF_CMD("-nud", -ND6_IFF_PERFORMNUD, setnd6flags), 585 DEF_CMD("auto_linklocal",ND6_IFF_AUTO_LINKLOCAL,setnd6flags), 586 DEF_CMD("-auto_linklocal",-ND6_IFF_AUTO_LINKLOCAL,setnd6flags), 587 DEF_CMD("no_prefer_iface",ND6_IFF_NO_PREFER_IFACE,setnd6flags), 588 DEF_CMD("-no_prefer_iface",-ND6_IFF_NO_PREFER_IFACE,setnd6flags), 589 DEF_CMD("no_dad", ND6_IFF_NO_DAD, setnd6flags), 590 DEF_CMD("-no_dad", -ND6_IFF_NO_DAD, setnd6flags), 591 DEF_CMD_ARG("pltime", setip6pltime), 592 DEF_CMD_ARG("vltime", setip6vltime), 593 DEF_CMD("eui64", 0, setip6eui64), 594 #ifdef EXPERIMENTAL 595 DEF_CMD("ipv6_only", ND6_IFF_IPV6_ONLY_MANUAL,setnd6flags), 596 DEF_CMD("-ipv6_only", -ND6_IFF_IPV6_ONLY_MANUAL,setnd6flags), 597 #endif 598 }; 599 600 static struct afswtch af_inet6 = { 601 .af_name = "inet6", 602 .af_af = AF_INET6, 603 #ifdef WITHOUT_NETLINK 604 .af_status = in6_status, 605 #else 606 .af_status_nl = in6_status_nl, 607 #endif 608 .af_getaddr = in6_getaddr, 609 .af_getprefix = in6_getprefix, 610 .af_other_status = nd6_status, 611 .af_postproc = in6_postproc, 612 .af_status_tunnel = in6_status_tunnel, 613 .af_settunnel = in6_set_tunnel, 614 .af_setvhid = in6_set_vhid, 615 .af_difaddr = SIOCDIFADDR_IN6, 616 .af_aifaddr = SIOCAIFADDR_IN6, 617 .af_ridreq = &in6_addreq, 618 .af_addreq = &in6_addreq, 619 }; 620 621 static void 622 in6_Lopt_cb(const char *optarg __unused) 623 { 624 ip6lifetime++; /* print IPv6 address lifetime */ 625 } 626 static struct option in6_Lopt = { 627 .opt = "L", 628 .opt_usage = "[-L]", 629 .cb = in6_Lopt_cb 630 }; 631 632 static __constructor void 633 inet6_ctor(void) 634 { 635 size_t i; 636 637 #ifndef RESCUE 638 if (!feature_present("inet6")) 639 return; 640 #endif 641 642 for (i = 0; i < nitems(inet6_cmds); i++) 643 cmd_register(&inet6_cmds[i]); 644 af_register(&af_inet6); 645 opt_register(&in6_Lopt); 646 } 647