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 #include <sys/param.h> 33 #include <sys/ioctl.h> 34 #include <sys/socket.h> 35 #include <net/if.h> 36 37 #include <err.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <time.h> 43 #include <ifaddrs.h> 44 45 #include <arpa/inet.h> 46 47 #include <netinet/in.h> 48 #include <netinet/in_var.h> 49 #include <arpa/inet.h> 50 #include <netdb.h> 51 52 #include <netinet6/nd6.h> /* Define ND6_INFINITE_LIFETIME */ 53 54 #include "ifconfig.h" 55 #include "ifconfig_netlink.h" 56 57 #ifndef WITHOUT_NETLINK 58 struct in6_px { 59 struct in6_addr addr; 60 int plen; 61 bool set; 62 }; 63 struct in6_pdata { 64 struct in6_px addr; 65 struct in6_px dst_addr; 66 struct in6_addrlifetime lifetime; 67 uint32_t flags; 68 uint32_t vhid; 69 }; 70 71 static struct in6_pdata in6_del; 72 static struct in6_pdata in6_add = { 73 .lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME }, 74 }; 75 #else 76 static struct in6_ifreq in6_ridreq; 77 static struct in6_aliasreq in6_addreq = 78 { .ifra_flags = 0, 79 .ifra_lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } }; 80 #endif 81 static int ip6lifetime; 82 83 #ifdef WITHOUT_NETLINK 84 static int prefix(void *, int); 85 #endif 86 static char *sec2str(time_t); 87 static int explicit_prefix = 0; 88 extern char *f_inet6, *f_addr; 89 90 extern void setnd6flags(if_ctx *, const char *, int); 91 extern void setnd6defif(if_ctx *,const char *, int); 92 extern void nd6_status(if_ctx *); 93 94 static char addr_buf[NI_MAXHOST]; /*for getnameinfo()*/ 95 96 static void 97 setifprefixlen(if_ctx *ctx __netlink_unused, const char *addr, int dummy __unused) 98 { 99 #ifdef WITHOUT_NETLINK 100 const struct afswtch *afp = ctx->afp; 101 102 if (afp->af_getprefix != NULL) 103 afp->af_getprefix(addr, MASK); 104 #else 105 int plen = strtol(addr, NULL, 10); 106 107 if ((plen < 0) || (plen > 128)) 108 errx(1, "%s: bad value", addr); 109 in6_add.addr.plen = plen; 110 #endif 111 explicit_prefix = 1; 112 } 113 114 static void 115 setip6flags(if_ctx *ctx, const char *dummyaddr __unused, int flag) 116 { 117 const struct afswtch *afp = ctx->afp; 118 119 if (afp->af_af != AF_INET6) 120 err(1, "address flags can be set only for inet6 addresses"); 121 122 #ifdef WITHOUT_NETLINK 123 if (flag < 0) 124 in6_addreq.ifra_flags &= ~(-flag); 125 else 126 in6_addreq.ifra_flags |= flag; 127 #else 128 if (flag < 0) 129 in6_add.flags &= ~(-flag); 130 else 131 in6_add.flags |= flag; 132 #endif 133 } 134 135 static void 136 setip6lifetime(if_ctx *ctx, const char *cmd, const char *val) 137 { 138 const struct afswtch *afp = ctx->afp; 139 struct timespec now; 140 time_t newval; 141 char *ep; 142 #ifdef WITHOUT_NETLINK 143 struct in6_addrlifetime *lifetime = &in6_addreq.ifra_lifetime; 144 #else 145 struct in6_addrlifetime *lifetime = &in6_add.lifetime; 146 #endif 147 148 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 149 newval = (time_t)strtoul(val, &ep, 0); 150 if (val == ep) 151 errx(1, "invalid %s", cmd); 152 if (afp->af_af != AF_INET6) 153 errx(1, "%s not allowed for the AF", cmd); 154 if (strcmp(cmd, "vltime") == 0) { 155 lifetime->ia6t_expire = now.tv_sec + newval; 156 lifetime->ia6t_vltime = newval; 157 } else if (strcmp(cmd, "pltime") == 0) { 158 lifetime->ia6t_preferred = now.tv_sec + newval; 159 lifetime->ia6t_pltime = newval; 160 } 161 } 162 163 static void 164 setip6pltime(if_ctx *ctx, const char *seconds, int dummy __unused) 165 { 166 setip6lifetime(ctx, "pltime", seconds); 167 } 168 169 static void 170 setip6vltime(if_ctx *ctx, const char *seconds, int dummy __unused) 171 { 172 setip6lifetime(ctx, "vltime", seconds); 173 } 174 175 static void 176 setip6eui64(if_ctx *ctx, const char *cmd, int dummy __unused) 177 { 178 const struct afswtch *afp = ctx->afp; 179 struct ifaddrs *ifap, *ifa; 180 const struct sockaddr_in6 *sin6 = NULL; 181 const struct in6_addr *lladdr = NULL; 182 struct in6_addr *in6; 183 184 if (afp->af_af != AF_INET6) 185 errx(EXIT_FAILURE, "%s not allowed for the AF", cmd); 186 #ifdef WITHOUT_NETLINK 187 in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr; 188 #else 189 in6 = &in6_add.addr.addr; 190 #endif 191 if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0) 192 errx(EXIT_FAILURE, "interface index is already filled"); 193 if (getifaddrs(&ifap) != 0) 194 err(EXIT_FAILURE, "getifaddrs"); 195 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 196 if (ifa->ifa_addr->sa_family == AF_INET6 && 197 strcmp(ifa->ifa_name, ctx->ifname) == 0) { 198 sin6 = (const struct sockaddr_in6 *)satosin6(ifa->ifa_addr); 199 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 200 lladdr = &sin6->sin6_addr; 201 break; 202 } 203 } 204 } 205 if (!lladdr) 206 errx(EXIT_FAILURE, "could not determine link local address"); 207 208 memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8); 209 210 freeifaddrs(ifap); 211 } 212 213 static void 214 print_addr(struct sockaddr_in6 *sin) 215 { 216 int error, n_flags; 217 218 if (f_addr != NULL && strcmp(f_addr, "fqdn") == 0) 219 n_flags = 0; 220 else if (f_addr != NULL && strcmp(f_addr, "host") == 0) 221 n_flags = NI_NOFQDN; 222 else 223 n_flags = NI_NUMERICHOST; 224 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, 225 addr_buf, sizeof(addr_buf), NULL, 0, 226 n_flags); 227 if (error != 0) 228 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, 229 sizeof(addr_buf)); 230 printf("\tinet6 %s", addr_buf); 231 } 232 233 static void 234 print_p2p(struct sockaddr_in6 *sin) 235 { 236 int error; 237 238 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf, 239 sizeof(addr_buf), NULL, 0, NI_NUMERICHOST); 240 241 if (error != 0) 242 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, sizeof(addr_buf)); 243 printf(" --> %s", addr_buf); 244 } 245 246 static void 247 print_mask(int plen) 248 { 249 if (f_inet6 != NULL && strcmp(f_inet6, "cidr") == 0) 250 printf("/%d", plen); 251 else 252 printf(" prefixlen %d", plen); 253 } 254 255 static void 256 print_flags(int flags6) 257 { 258 if ((flags6 & IN6_IFF_ANYCAST) != 0) 259 printf(" anycast"); 260 if ((flags6 & IN6_IFF_TENTATIVE) != 0) 261 printf(" tentative"); 262 if ((flags6 & IN6_IFF_DUPLICATED) != 0) 263 printf(" duplicated"); 264 if ((flags6 & IN6_IFF_DETACHED) != 0) 265 printf(" detached"); 266 if ((flags6 & IN6_IFF_DEPRECATED) != 0) 267 printf(" deprecated"); 268 if ((flags6 & IN6_IFF_AUTOCONF) != 0) 269 printf(" autoconf"); 270 if ((flags6 & IN6_IFF_TEMPORARY) != 0) 271 printf(" temporary"); 272 if ((flags6 & IN6_IFF_PREFER_SOURCE) != 0) 273 printf(" prefer_source"); 274 275 } 276 277 static void 278 print_lifetime(const char *prepend, time_t px_time, struct timespec *now) 279 { 280 printf(" %s", prepend); 281 if (px_time == 0) 282 printf(" infty"); 283 284 printf(" %s", px_time < now->tv_sec ? "0" : sec2str(px_time - now->tv_sec)); 285 } 286 287 #ifdef WITHOUT_NETLINK 288 static void 289 in6_status(if_ctx *ctx, const struct ifaddrs *ifa) 290 { 291 struct sockaddr_in6 *sin, null_sin = {}; 292 struct in6_ifreq ifr6; 293 int s6; 294 u_int32_t flags6; 295 struct in6_addrlifetime lifetime; 296 297 sin = satosin6(ifa->ifa_addr); 298 if (sin == NULL) 299 return; 300 301 strlcpy(ifr6.ifr_name, ctx->ifname, sizeof(ifr6.ifr_name)); 302 if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 303 warn("socket(AF_INET6,SOCK_DGRAM)"); 304 return; 305 } 306 ifr6.ifr_addr = *sin; 307 if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) { 308 warn("ioctl(SIOCGIFAFLAG_IN6)"); 309 close(s6); 310 return; 311 } 312 flags6 = ifr6.ifr_ifru.ifru_flags6; 313 memset(&lifetime, 0, sizeof(lifetime)); 314 ifr6.ifr_addr = *sin; 315 if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) { 316 warn("ioctl(SIOCGIFALIFETIME_IN6)"); 317 close(s6); 318 return; 319 } 320 lifetime = ifr6.ifr_ifru.ifru_lifetime; 321 close(s6); 322 323 print_addr(sin); 324 325 if (ifa->ifa_flags & IFF_POINTOPOINT) { 326 sin = satosin6(ifa->ifa_dstaddr); 327 /* 328 * some of the interfaces do not have valid destination 329 * address. 330 */ 331 if (sin != NULL && sin->sin6_family == AF_INET6) 332 print_p2p(sin); 333 } 334 335 sin = satosin6(ifa->ifa_netmask); 336 if (sin == NULL) 337 sin = &null_sin; 338 print_mask(prefix(&sin->sin6_addr, sizeof(struct in6_addr))); 339 340 print_flags(flags6); 341 342 if ((satosin6(ifa->ifa_addr))->sin6_scope_id) 343 printf(" scopeid 0x%x", 344 (satosin6(ifa->ifa_addr))->sin6_scope_id); 345 346 if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) { 347 struct timespec now; 348 349 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 350 print_lifetime("pltime", lifetime.ia6t_preferred, &now); 351 print_lifetime("vltime", lifetime.ia6t_expire, &now); 352 } 353 354 print_vhid(ifa); 355 356 putchar('\n'); 357 } 358 359 #else 360 static void 361 show_lifetime(struct ifa_cacheinfo *ci) 362 { 363 struct timespec now; 364 uint32_t pl, vl; 365 366 if (ci == NULL) 367 return; 368 369 int count = ci->ifa_prefered != ND6_INFINITE_LIFETIME; 370 count += ci->ifa_valid != ND6_INFINITE_LIFETIME; 371 if (count == 0) 372 return; 373 374 pl = (ci->ifa_prefered == ND6_INFINITE_LIFETIME) ? 0 : ci->ifa_prefered; 375 vl = (ci->ifa_valid == ND6_INFINITE_LIFETIME) ? 0 : ci->ifa_valid; 376 377 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 378 print_lifetime("pltime", pl + now.tv_sec, &now); 379 print_lifetime("vltime", vl + now.tv_sec, &now); 380 } 381 382 static void 383 in6_status_nl(if_ctx *ctx __unused, if_link_t *link __unused, if_addr_t *ifa) 384 { 385 int plen = ifa->ifa_prefixlen; 386 uint32_t scopeid; 387 388 if (ifa->ifa_local == NULL) { 389 /* Non-P2P address */ 390 scopeid = satosin6(ifa->ifa_address)->sin6_scope_id; 391 print_addr(satosin6(ifa->ifa_address)); 392 } else { 393 scopeid = satosin6(ifa->ifa_local)->sin6_scope_id; 394 print_addr(satosin6(ifa->ifa_local)); 395 print_p2p(satosin6(ifa->ifa_address)); 396 } 397 398 print_mask(plen); 399 print_flags(ifa->ifaf_flags); 400 401 if (scopeid != 0) 402 printf(" scopeid 0x%x", scopeid); 403 404 show_lifetime(ifa->ifa_cacheinfo); 405 406 if (ifa->ifaf_vhid != 0) 407 printf(" vhid %d", ifa->ifaf_vhid); 408 409 putchar('\n'); 410 } 411 412 static struct in6_px *sin6tab_nl[] = { 413 &in6_del.addr, /* RIDADDR */ 414 &in6_add.addr, /* ADDR */ 415 NULL, /* MASK */ 416 &in6_add.dst_addr, /* DSTADDR*/ 417 }; 418 419 static void 420 in6_copyaddr(if_ctx *ctx __unused, int to, int from) 421 { 422 sin6tab_nl[to]->addr = sin6tab_nl[from]->addr; 423 sin6tab_nl[to]->set = sin6tab_nl[from]->set; 424 } 425 426 static void 427 in6_getaddr(const char *addr_str, int which) 428 { 429 struct in6_px *px = sin6tab_nl[which]; 430 431 px->set = true; 432 px->plen = 128; 433 if (which == ADDR) { 434 char *p = NULL; 435 if((p = strrchr(addr_str, '/')) != NULL) { 436 *p = '\0'; 437 int plen = strtol(p + 1, NULL, 10); 438 if (plen < 0 || plen > 128) 439 errx(1, "%s: bad value", p + 1); 440 px->plen = plen; 441 explicit_prefix = 1; 442 } 443 } 444 445 struct addrinfo hints = { .ai_family = AF_INET6 }; 446 struct addrinfo *res; 447 448 int error = getaddrinfo(addr_str, NULL, &hints, &res); 449 if (error != 0) { 450 if (inet_pton(AF_INET6, addr_str, &px->addr) != 1) 451 errx(1, "%s: bad value", addr_str); 452 } else { 453 struct sockaddr_in6 *sin6; 454 455 sin6 = (struct sockaddr_in6 *)(void *)res->ai_addr; 456 px->addr = sin6->sin6_addr; 457 freeaddrinfo(res); 458 } 459 } 460 461 static int 462 in6_exec_nl(if_ctx *ctx, unsigned long action, void *data) 463 { 464 struct in6_pdata *pdata = (struct in6_pdata *)data; 465 struct snl_writer nw = {}; 466 467 snl_init_writer(ctx->io_ss, &nw); 468 struct nlmsghdr *hdr = snl_create_msg_request(&nw, action); 469 struct ifaddrmsg *ifahdr = snl_reserve_msg_object(&nw, struct ifaddrmsg); 470 471 ifahdr->ifa_family = AF_INET6; 472 ifahdr->ifa_prefixlen = pdata->addr.plen; 473 ifahdr->ifa_index = if_nametoindex_nl(ctx->io_ss, ctx->ifname); 474 475 snl_add_msg_attr_ip6(&nw, IFA_LOCAL, &pdata->addr.addr); 476 if (action == NL_RTM_NEWADDR && pdata->dst_addr.set) 477 snl_add_msg_attr_ip6(&nw, IFA_ADDRESS, &pdata->dst_addr.addr); 478 479 struct ifa_cacheinfo ci = { 480 .ifa_prefered = pdata->lifetime.ia6t_pltime, 481 .ifa_valid = pdata->lifetime.ia6t_vltime, 482 }; 483 snl_add_msg_attr(&nw, IFA_CACHEINFO, sizeof(ci), &ci); 484 485 int off = snl_add_msg_attr_nested(&nw, IFA_FREEBSD); 486 snl_add_msg_attr_u32(&nw, IFAF_FLAGS, pdata->flags); 487 if (pdata->vhid != 0) 488 snl_add_msg_attr_u32(&nw, IFAF_VHID, pdata->vhid); 489 snl_end_attr_nested(&nw, off); 490 491 if (! (hdr = snl_finalize_msg(&nw)) || !snl_send_message(ctx->io_ss, hdr)) 492 return (0); 493 494 struct snl_errmsg_data e = {}; 495 snl_read_reply_code(ctx->io_ss, hdr->nlmsg_seq, &e); 496 497 return (e.error); 498 } 499 #endif 500 501 #ifdef WITHOUT_NETLINK 502 static struct sockaddr_in6 *sin6tab[] = { 503 &in6_ridreq.ifr_addr, &in6_addreq.ifra_addr, 504 &in6_addreq.ifra_prefixmask, &in6_addreq.ifra_dstaddr 505 }; 506 507 static void 508 in6_copyaddr(if_ctx *ctx __unused, int to, int from) 509 { 510 memcpy(sin6tab[to], sin6tab[from], sizeof(struct sockaddr_in6)); 511 } 512 513 static void 514 in6_getprefix(const char *plen, int which) 515 { 516 struct sockaddr_in6 *sin = sin6tab[which]; 517 u_char *cp; 518 int len = atoi(plen); 519 520 if ((len < 0) || (len > 128)) 521 errx(1, "%s: bad value", plen); 522 sin->sin6_len = sizeof(*sin); 523 if (which != MASK) 524 sin->sin6_family = AF_INET6; 525 if ((len == 0) || (len == 128)) { 526 memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); 527 return; 528 } 529 memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); 530 for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) 531 *cp++ = 0xff; 532 *cp = 0xff << (8 - len); 533 } 534 535 static void 536 in6_getaddr(const char *s, int which) 537 { 538 struct sockaddr_in6 *sin = sin6tab[which]; 539 struct addrinfo hints, *res; 540 int error = -1; 541 542 sin->sin6_len = sizeof(*sin); 543 if (which != MASK) 544 sin->sin6_family = AF_INET6; 545 546 if (which == ADDR) { 547 char *p = NULL; 548 if((p = strrchr(s, '/')) != NULL) { 549 *p = '\0'; 550 in6_getprefix(p + 1, MASK); 551 explicit_prefix = 1; 552 } 553 } 554 555 if (sin->sin6_family == AF_INET6) { 556 bzero(&hints, sizeof(struct addrinfo)); 557 hints.ai_family = AF_INET6; 558 error = getaddrinfo(s, NULL, &hints, &res); 559 if (error != 0) { 560 if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1) 561 errx(1, "%s: bad value", s); 562 } else { 563 bcopy(res->ai_addr, sin, res->ai_addrlen); 564 freeaddrinfo(res); 565 } 566 } 567 } 568 569 static int 570 prefix(void *val, int size) 571 { 572 u_char *name = (u_char *)val; 573 int byte, bit, plen = 0; 574 575 for (byte = 0; byte < size; byte++, plen += 8) 576 if (name[byte] != 0xff) 577 break; 578 if (byte == size) 579 return (plen); 580 for (bit = 7; bit != 0; bit--, plen++) 581 if (!(name[byte] & (1 << bit))) 582 break; 583 for (; bit != 0; bit--) 584 if (name[byte] & (1 << bit)) 585 return(0); 586 byte++; 587 for (; byte < size; byte++) 588 if (name[byte]) 589 return(0); 590 return (plen); 591 } 592 #endif 593 594 static char * 595 sec2str(time_t total) 596 { 597 static char result[256]; 598 int days, hours, mins, secs; 599 int first = 1; 600 char *p = result; 601 602 if (0) { 603 days = total / 3600 / 24; 604 hours = (total / 3600) % 24; 605 mins = (total / 60) % 60; 606 secs = total % 60; 607 608 if (days) { 609 first = 0; 610 p += sprintf(p, "%dd", days); 611 } 612 if (!first || hours) { 613 first = 0; 614 p += sprintf(p, "%dh", hours); 615 } 616 if (!first || mins) { 617 first = 0; 618 p += sprintf(p, "%dm", mins); 619 } 620 sprintf(p, "%ds", secs); 621 } else 622 sprintf(result, "%lu", (unsigned long)total); 623 624 return(result); 625 } 626 627 static void 628 in6_postproc(if_ctx *ctx, int newaddr __unused, 629 int ifflags __unused) 630 { 631 if (explicit_prefix == 0) { 632 /* Aggregatable address architecture defines all prefixes 633 are 64. So, it is convenient to set prefixlen to 64 if 634 it is not specified. */ 635 setifprefixlen(ctx, "64", 0); 636 /* in6_getprefix("64", MASK) if MASK is available here... */ 637 } 638 } 639 640 static void 641 in6_status_tunnel(if_ctx *ctx) 642 { 643 char src[NI_MAXHOST]; 644 char dst[NI_MAXHOST]; 645 struct in6_ifreq in6_ifr; 646 const struct sockaddr *sa = (const struct sockaddr *) &in6_ifr.ifr_addr; 647 648 memset(&in6_ifr, 0, sizeof(in6_ifr)); 649 strlcpy(in6_ifr.ifr_name, ctx->ifname, sizeof(in6_ifr.ifr_name)); 650 651 if (ioctl_ctx(ctx, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6_ifr) < 0) 652 return; 653 if (sa->sa_family != AF_INET6) 654 return; 655 if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0, 656 NI_NUMERICHOST) != 0) 657 src[0] = '\0'; 658 659 if (ioctl_ctx(ctx, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6_ifr) < 0) 660 return; 661 if (sa->sa_family != AF_INET6) 662 return; 663 if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0, 664 NI_NUMERICHOST) != 0) 665 dst[0] = '\0'; 666 667 printf("\ttunnel inet6 %s --> %s\n", src, dst); 668 } 669 670 static void 671 in6_set_tunnel(if_ctx *ctx, struct addrinfo *srcres, struct addrinfo *dstres) 672 { 673 struct in6_aliasreq in6_req = {}; 674 675 strlcpy(in6_req.ifra_name, ctx->ifname, sizeof(in6_req.ifra_name)); 676 memcpy(&in6_req.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len); 677 memcpy(&in6_req.ifra_dstaddr, dstres->ai_addr, 678 dstres->ai_addr->sa_len); 679 680 if (ioctl_ctx(ctx, SIOCSIFPHYADDR_IN6, &in6_req) < 0) 681 warn("SIOCSIFPHYADDR_IN6"); 682 } 683 684 static void 685 in6_set_vhid(int vhid) 686 { 687 #ifdef WITHOUT_NETLINK 688 in6_addreq.ifra_vhid = vhid; 689 #else 690 in6_add.vhid = (uint32_t)vhid; 691 #endif 692 } 693 694 static struct cmd inet6_cmds[] = { 695 DEF_CMD_ARG("prefixlen", setifprefixlen), 696 DEF_CMD("anycast", IN6_IFF_ANYCAST, setip6flags), 697 DEF_CMD("tentative", IN6_IFF_TENTATIVE, setip6flags), 698 DEF_CMD("-tentative", -IN6_IFF_TENTATIVE, setip6flags), 699 DEF_CMD("deprecated", IN6_IFF_DEPRECATED, setip6flags), 700 DEF_CMD("-deprecated", -IN6_IFF_DEPRECATED, setip6flags), 701 DEF_CMD("autoconf", IN6_IFF_AUTOCONF, setip6flags), 702 DEF_CMD("-autoconf", -IN6_IFF_AUTOCONF, setip6flags), 703 DEF_CMD("prefer_source",IN6_IFF_PREFER_SOURCE, setip6flags), 704 DEF_CMD("-prefer_source",-IN6_IFF_PREFER_SOURCE,setip6flags), 705 DEF_CMD("accept_rtadv", ND6_IFF_ACCEPT_RTADV, setnd6flags), 706 DEF_CMD("-accept_rtadv",-ND6_IFF_ACCEPT_RTADV, setnd6flags), 707 DEF_CMD("no_radr", ND6_IFF_NO_RADR, setnd6flags), 708 DEF_CMD("-no_radr", -ND6_IFF_NO_RADR, setnd6flags), 709 DEF_CMD("defaultif", 1, setnd6defif), 710 DEF_CMD("-defaultif", -1, setnd6defif), 711 DEF_CMD("ifdisabled", ND6_IFF_IFDISABLED, setnd6flags), 712 DEF_CMD("-ifdisabled", -ND6_IFF_IFDISABLED, setnd6flags), 713 DEF_CMD("nud", ND6_IFF_PERFORMNUD, setnd6flags), 714 DEF_CMD("-nud", -ND6_IFF_PERFORMNUD, setnd6flags), 715 DEF_CMD("auto_linklocal",ND6_IFF_AUTO_LINKLOCAL,setnd6flags), 716 DEF_CMD("-auto_linklocal",-ND6_IFF_AUTO_LINKLOCAL,setnd6flags), 717 DEF_CMD("no_prefer_iface",ND6_IFF_NO_PREFER_IFACE,setnd6flags), 718 DEF_CMD("-no_prefer_iface",-ND6_IFF_NO_PREFER_IFACE,setnd6flags), 719 DEF_CMD("no_dad", ND6_IFF_NO_DAD, setnd6flags), 720 DEF_CMD("-no_dad", -ND6_IFF_NO_DAD, setnd6flags), 721 DEF_CMD_ARG("pltime", setip6pltime), 722 DEF_CMD_ARG("vltime", setip6vltime), 723 DEF_CMD("eui64", 0, setip6eui64), 724 #ifdef EXPERIMENTAL 725 DEF_CMD("ipv6_only", ND6_IFF_IPV6_ONLY_MANUAL,setnd6flags), 726 DEF_CMD("-ipv6_only", -ND6_IFF_IPV6_ONLY_MANUAL,setnd6flags), 727 #endif 728 }; 729 730 static struct afswtch af_inet6 = { 731 .af_name = "inet6", 732 .af_af = AF_INET6, 733 #ifdef WITHOUT_NETLINK 734 .af_status = in6_status, 735 #else 736 .af_status = in6_status_nl, 737 #endif 738 .af_getaddr = in6_getaddr, 739 .af_copyaddr = in6_copyaddr, 740 #ifdef WITHOUT_NETLINK 741 .af_getprefix = in6_getprefix, 742 #endif 743 .af_other_status = nd6_status, 744 .af_postproc = in6_postproc, 745 .af_status_tunnel = in6_status_tunnel, 746 .af_settunnel = in6_set_tunnel, 747 .af_setvhid = in6_set_vhid, 748 #ifdef WITHOUT_NETLINK 749 .af_difaddr = SIOCDIFADDR_IN6, 750 .af_aifaddr = SIOCAIFADDR_IN6, 751 .af_ridreq = &in6_addreq, 752 .af_addreq = &in6_addreq, 753 .af_exec = af_exec_ioctl, 754 #else 755 .af_difaddr = NL_RTM_DELADDR, 756 .af_aifaddr = NL_RTM_NEWADDR, 757 .af_ridreq = &in6_add, 758 .af_addreq = &in6_add, 759 .af_exec = in6_exec_nl, 760 #endif 761 }; 762 763 static void 764 in6_Lopt_cb(const char *arg __unused) 765 { 766 ip6lifetime++; /* print IPv6 address lifetime */ 767 } 768 static struct option in6_Lopt = { 769 .opt = "L", 770 .opt_usage = "[-L]", 771 .cb = in6_Lopt_cb 772 }; 773 774 static __constructor void 775 inet6_ctor(void) 776 { 777 size_t i; 778 779 #ifndef RESCUE 780 if (!feature_present("inet6")) 781 return; 782 #endif 783 784 for (i = 0; i < nitems(inet6_cmds); i++) 785 cmd_register(&inet6_cmds[i]); 786 af_register(&af_inet6); 787 opt_register(&in6_Lopt); 788 } 789