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