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 #ifndef WITHOUT_NETLINK 63 struct in6_px { 64 struct in6_addr addr; 65 int plen; 66 bool set; 67 }; 68 struct in6_pdata { 69 struct in6_px addr; 70 struct in6_px dst_addr; 71 struct in6_addrlifetime lifetime; 72 uint32_t flags; 73 uint32_t vhid; 74 }; 75 76 static struct in6_pdata in6_del; 77 static struct in6_pdata in6_add = { 78 .lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME }, 79 }; 80 #else 81 static struct in6_ifreq in6_ridreq; 82 static struct in6_aliasreq in6_addreq = 83 { .ifra_flags = 0, 84 .ifra_lifetime = { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } }; 85 #endif 86 static int ip6lifetime; 87 88 #ifdef WITHOUT_NETLINK 89 static int prefix(void *, int); 90 #endif 91 static char *sec2str(time_t); 92 static int explicit_prefix = 0; 93 extern char *f_inet6, *f_addr; 94 95 extern void setnd6flags(if_ctx *, const char *, int); 96 extern void setnd6defif(if_ctx *,const char *, int); 97 extern void nd6_status(if_ctx *); 98 99 static char addr_buf[NI_MAXHOST]; /*for getnameinfo()*/ 100 101 static void 102 setifprefixlen(if_ctx *ctx __netlink_unused, const char *addr, int dummy __unused) 103 { 104 #ifdef WITHOUT_NETLINK 105 const struct afswtch *afp = ctx->afp; 106 107 if (afp->af_getprefix != NULL) 108 afp->af_getprefix(addr, MASK); 109 #else 110 int plen = strtol(addr, NULL, 10); 111 112 if ((plen < 0) || (plen > 128)) 113 errx(1, "%s: bad value", addr); 114 in6_add.addr.plen = plen; 115 #endif 116 explicit_prefix = 1; 117 } 118 119 static void 120 setip6flags(if_ctx *ctx, const char *dummyaddr __unused, int flag) 121 { 122 const struct afswtch *afp = ctx->afp; 123 124 if (afp->af_af != AF_INET6) 125 err(1, "address flags can be set only for inet6 addresses"); 126 127 #ifdef WITHOUT_NETLINK 128 if (flag < 0) 129 in6_addreq.ifra_flags &= ~(-flag); 130 else 131 in6_addreq.ifra_flags |= flag; 132 #else 133 if (flag < 0) 134 in6_add.flags &= ~(-flag); 135 else 136 in6_add.flags |= flag; 137 #endif 138 } 139 140 static void 141 setip6lifetime(if_ctx *ctx, const char *cmd, const char *val) 142 { 143 const struct afswtch *afp = ctx->afp; 144 struct timespec now; 145 time_t newval; 146 char *ep; 147 #ifdef WITHOUT_NETLINK 148 struct in6_addrlifetime *lifetime = &in6_addreq.ifra_lifetime; 149 #else 150 struct in6_addrlifetime *lifetime = &in6_add.lifetime; 151 #endif 152 153 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 154 newval = (time_t)strtoul(val, &ep, 0); 155 if (val == ep) 156 errx(1, "invalid %s", cmd); 157 if (afp->af_af != AF_INET6) 158 errx(1, "%s not allowed for the AF", cmd); 159 if (strcmp(cmd, "vltime") == 0) { 160 lifetime->ia6t_expire = now.tv_sec + newval; 161 lifetime->ia6t_vltime = newval; 162 } else if (strcmp(cmd, "pltime") == 0) { 163 lifetime->ia6t_preferred = now.tv_sec + newval; 164 lifetime->ia6t_pltime = newval; 165 } 166 } 167 168 static void 169 setip6pltime(if_ctx *ctx, const char *seconds, int dummy __unused) 170 { 171 setip6lifetime(ctx, "pltime", seconds); 172 } 173 174 static void 175 setip6vltime(if_ctx *ctx, const char *seconds, int dummy __unused) 176 { 177 setip6lifetime(ctx, "vltime", seconds); 178 } 179 180 static void 181 setip6eui64(if_ctx *ctx, const char *cmd, int dummy __unused) 182 { 183 const struct afswtch *afp = ctx->afp; 184 struct ifaddrs *ifap, *ifa; 185 const struct sockaddr_in6 *sin6 = NULL; 186 const struct in6_addr *lladdr = NULL; 187 struct in6_addr *in6; 188 189 if (afp->af_af != AF_INET6) 190 errx(EXIT_FAILURE, "%s not allowed for the AF", cmd); 191 #ifdef WITHOUT_NETLINK 192 in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr; 193 #else 194 in6 = &in6_add.addr.addr; 195 #endif 196 if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0) 197 errx(EXIT_FAILURE, "interface index is already filled"); 198 if (getifaddrs(&ifap) != 0) 199 err(EXIT_FAILURE, "getifaddrs"); 200 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 201 if (ifa->ifa_addr->sa_family == AF_INET6 && 202 strcmp(ifa->ifa_name, name) == 0) { 203 sin6 = (const struct sockaddr_in6 *)satosin6(ifa->ifa_addr); 204 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 205 lladdr = &sin6->sin6_addr; 206 break; 207 } 208 } 209 } 210 if (!lladdr) 211 errx(EXIT_FAILURE, "could not determine link local address"); 212 213 memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8); 214 215 freeifaddrs(ifap); 216 } 217 218 static void 219 print_addr(struct sockaddr_in6 *sin) 220 { 221 int error, n_flags; 222 223 if (f_addr != NULL && strcmp(f_addr, "fqdn") == 0) 224 n_flags = 0; 225 else if (f_addr != NULL && strcmp(f_addr, "host") == 0) 226 n_flags = NI_NOFQDN; 227 else 228 n_flags = NI_NUMERICHOST; 229 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, 230 addr_buf, sizeof(addr_buf), NULL, 0, 231 n_flags); 232 if (error != 0) 233 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, 234 sizeof(addr_buf)); 235 printf("\tinet6 %s", addr_buf); 236 } 237 238 static void 239 print_p2p(struct sockaddr_in6 *sin) 240 { 241 int error; 242 243 error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf, 244 sizeof(addr_buf), NULL, 0, NI_NUMERICHOST); 245 246 if (error != 0) 247 inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf, sizeof(addr_buf)); 248 printf(" --> %s", addr_buf); 249 } 250 251 static void 252 print_mask(int plen) 253 { 254 if (f_inet6 != NULL && strcmp(f_inet6, "cidr") == 0) 255 printf("/%d", plen); 256 else 257 printf(" prefixlen %d", plen); 258 } 259 260 static void 261 print_flags(int flags6) 262 { 263 if ((flags6 & IN6_IFF_ANYCAST) != 0) 264 printf(" anycast"); 265 if ((flags6 & IN6_IFF_TENTATIVE) != 0) 266 printf(" tentative"); 267 if ((flags6 & IN6_IFF_DUPLICATED) != 0) 268 printf(" duplicated"); 269 if ((flags6 & IN6_IFF_DETACHED) != 0) 270 printf(" detached"); 271 if ((flags6 & IN6_IFF_DEPRECATED) != 0) 272 printf(" deprecated"); 273 if ((flags6 & IN6_IFF_AUTOCONF) != 0) 274 printf(" autoconf"); 275 if ((flags6 & IN6_IFF_TEMPORARY) != 0) 276 printf(" temporary"); 277 if ((flags6 & IN6_IFF_PREFER_SOURCE) != 0) 278 printf(" prefer_source"); 279 280 } 281 282 static void 283 print_lifetime(const char *prepend, time_t px_time, struct timespec *now) 284 { 285 printf(" %s", prepend); 286 if (px_time == 0) 287 printf(" infty"); 288 289 printf(" %s", px_time < now->tv_sec ? "0" : sec2str(px_time - now->tv_sec)); 290 } 291 292 #ifdef WITHOUT_NETLINK 293 static void 294 in6_status(if_ctx *ctx __unused, const struct ifaddrs *ifa) 295 { 296 struct sockaddr_in6 *sin, null_sin = {}; 297 struct in6_ifreq ifr6; 298 int s6; 299 u_int32_t flags6; 300 struct in6_addrlifetime lifetime; 301 302 sin = (struct sockaddr_in6 *)ifa->ifa_addr; 303 if (sin == NULL) 304 return; 305 306 strlcpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name)); 307 if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { 308 warn("socket(AF_INET6,SOCK_DGRAM)"); 309 return; 310 } 311 ifr6.ifr_addr = *sin; 312 if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) { 313 warn("ioctl(SIOCGIFAFLAG_IN6)"); 314 close(s6); 315 return; 316 } 317 flags6 = ifr6.ifr_ifru.ifru_flags6; 318 memset(&lifetime, 0, sizeof(lifetime)); 319 ifr6.ifr_addr = *sin; 320 if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) { 321 warn("ioctl(SIOCGIFALIFETIME_IN6)"); 322 close(s6); 323 return; 324 } 325 lifetime = ifr6.ifr_ifru.ifru_lifetime; 326 close(s6); 327 328 print_addr(sin); 329 330 if (ifa->ifa_flags & IFF_POINTOPOINT) { 331 sin = (struct sockaddr_in6 *)ifa->ifa_dstaddr; 332 /* 333 * some of the interfaces do not have valid destination 334 * address. 335 */ 336 if (sin != NULL && sin->sin6_family == AF_INET6) 337 print_p2p(sin); 338 } 339 340 sin = (struct sockaddr_in6 *)ifa->ifa_netmask; 341 if (sin == NULL) 342 sin = &null_sin; 343 print_mask(prefix(&sin->sin6_addr, sizeof(struct in6_addr))); 344 345 print_flags(flags6); 346 347 if (((struct sockaddr_in6 *)(ifa->ifa_addr))->sin6_scope_id) 348 printf(" scopeid 0x%x", 349 ((struct sockaddr_in6 *)(ifa->ifa_addr))->sin6_scope_id); 350 351 if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) { 352 struct timespec now; 353 354 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 355 print_lifetime("pltime", lifetime.ia6t_preferred, &now); 356 print_lifetime("vltime", lifetime.ia6t_expire, &now); 357 } 358 359 print_vhid(ifa, " "); 360 361 putchar('\n'); 362 } 363 364 #else 365 static void 366 show_lifetime(struct ifa_cacheinfo *ci) 367 { 368 struct timespec now; 369 uint32_t pl, vl; 370 371 if (ci == NULL) 372 return; 373 374 int count = ci->ifa_prefered != ND6_INFINITE_LIFETIME; 375 count += ci->ifa_valid != ND6_INFINITE_LIFETIME; 376 if (count == 0) 377 return; 378 379 pl = (ci->ifa_prefered == ND6_INFINITE_LIFETIME) ? 0 : ci->ifa_prefered; 380 vl = (ci->ifa_valid == ND6_INFINITE_LIFETIME) ? 0 : ci->ifa_valid; 381 382 clock_gettime(CLOCK_MONOTONIC_FAST, &now); 383 print_lifetime("pltime", pl + now.tv_sec, &now); 384 print_lifetime("vltime", vl + now.tv_sec, &now); 385 } 386 387 static void 388 in6_status_nl(if_ctx *ctx __unused, if_link_t *link __unused, if_addr_t *ifa) 389 { 390 int plen = ifa->ifa_prefixlen; 391 uint32_t scopeid; 392 393 if (ifa->ifa_local == NULL) { 394 /* Non-P2P address */ 395 scopeid = satosin6(ifa->ifa_address)->sin6_scope_id; 396 print_addr(satosin6(ifa->ifa_address)); 397 } else { 398 scopeid = satosin6(ifa->ifa_local)->sin6_scope_id; 399 print_addr(satosin6(ifa->ifa_local)); 400 print_p2p(satosin6(ifa->ifa_address)); 401 } 402 403 print_mask(plen); 404 print_flags(ifa->ifaf_flags); 405 406 if (scopeid != 0) 407 printf(" scopeid 0x%x", scopeid); 408 409 show_lifetime(ifa->ifa_cacheinfo); 410 411 if (ifa->ifaf_vhid != 0) 412 printf(" vhid %d", ifa->ifaf_vhid); 413 414 putchar('\n'); 415 } 416 417 static struct in6_px *sin6tab_nl[] = { 418 &in6_del.addr, /* RIDADDR */ 419 &in6_add.addr, /* ADDR */ 420 NULL, /* MASK */ 421 &in6_add.dst_addr, /* DSTADDR*/ 422 }; 423 424 static void 425 in6_copyaddr(if_ctx *ctx __unused, int to, int from) 426 { 427 sin6tab_nl[to]->addr = sin6tab_nl[from]->addr; 428 sin6tab_nl[to]->set = sin6tab_nl[from]->set; 429 } 430 431 static void 432 in6_getaddr(const char *addr_str, int which) 433 { 434 struct in6_px *px = sin6tab_nl[which]; 435 436 newaddr &= 1; 437 438 px->set = true; 439 px->plen = 128; 440 if (which == ADDR) { 441 char *p = NULL; 442 if((p = strrchr(addr_str, '/')) != NULL) { 443 *p = '\0'; 444 int plen = strtol(p + 1, NULL, 10); 445 if (plen < 0 || plen > 128) 446 errx(1, "%s: bad value", p + 1); 447 px->plen = plen; 448 explicit_prefix = 1; 449 } 450 } 451 452 struct addrinfo hints = { .ai_family = AF_INET6 }; 453 struct addrinfo *res; 454 455 int error = getaddrinfo(addr_str, NULL, &hints, &res); 456 if (error != 0) { 457 if (inet_pton(AF_INET6, addr_str, &px->addr) != 1) 458 errx(1, "%s: bad value", addr_str); 459 } else { 460 struct sockaddr_in6 *sin6; 461 462 sin6 = (struct sockaddr_in6 *)(void *)res->ai_addr; 463 px->addr = sin6->sin6_addr; 464 freeaddrinfo(res); 465 } 466 } 467 468 static int 469 in6_exec_nl(if_ctx *ctx, unsigned long action, void *data) 470 { 471 struct in6_pdata *pdata = (struct in6_pdata *)data; 472 struct snl_writer nw = {}; 473 474 snl_init_writer(ctx->io_ss, &nw); 475 struct nlmsghdr *hdr = snl_create_msg_request(&nw, action); 476 struct ifaddrmsg *ifahdr = snl_reserve_msg_object(&nw, struct ifaddrmsg); 477 478 ifahdr->ifa_family = AF_INET6; 479 ifahdr->ifa_prefixlen = pdata->addr.plen; 480 ifahdr->ifa_index = if_nametoindex_nl(ctx->io_ss, name); 481 482 snl_add_msg_attr_ip6(&nw, IFA_LOCAL, &pdata->addr.addr); 483 if (action == NL_RTM_NEWADDR && pdata->dst_addr.set) 484 snl_add_msg_attr_ip6(&nw, IFA_ADDRESS, &pdata->dst_addr.addr); 485 486 struct ifa_cacheinfo ci = { 487 .ifa_prefered = pdata->lifetime.ia6t_pltime, 488 .ifa_valid = pdata->lifetime.ia6t_vltime, 489 }; 490 snl_add_msg_attr(&nw, IFA_CACHEINFO, sizeof(ci), &ci); 491 492 int off = snl_add_msg_attr_nested(&nw, IFA_FREEBSD); 493 snl_add_msg_attr_u32(&nw, IFAF_FLAGS, pdata->flags); 494 if (pdata->vhid != 0) 495 snl_add_msg_attr_u32(&nw, IFAF_VHID, pdata->vhid); 496 snl_end_attr_nested(&nw, off); 497 498 if (!snl_finalize_msg(&nw) || !snl_send_message(ctx->io_ss, hdr)) 499 return (0); 500 501 struct snl_errmsg_data e = {}; 502 snl_read_reply_code(ctx->io_ss, hdr->nlmsg_seq, &e); 503 504 return (e.error); 505 } 506 #endif 507 508 #ifdef WITHOUT_NETLINK 509 static struct sockaddr_in6 *sin6tab[] = { 510 &in6_ridreq.ifr_addr, &in6_addreq.ifra_addr, 511 &in6_addreq.ifra_prefixmask, &in6_addreq.ifra_dstaddr 512 }; 513 514 static void 515 in6_copyaddr(if_ctx *ctx, int to, int from) 516 { 517 memcpy(sin6tab[to], sin6tab[from], sizeof(struct sockaddr_in6)); 518 } 519 520 static void 521 in6_getprefix(const char *plen, int which) 522 { 523 struct sockaddr_in6 *sin = sin6tab[which]; 524 u_char *cp; 525 int len = atoi(plen); 526 527 if ((len < 0) || (len > 128)) 528 errx(1, "%s: bad value", plen); 529 sin->sin6_len = sizeof(*sin); 530 if (which != MASK) 531 sin->sin6_family = AF_INET6; 532 if ((len == 0) || (len == 128)) { 533 memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr)); 534 return; 535 } 536 memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr)); 537 for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8) 538 *cp++ = 0xff; 539 *cp = 0xff << (8 - len); 540 } 541 542 static void 543 in6_getaddr(const char *s, int which) 544 { 545 struct sockaddr_in6 *sin = sin6tab[which]; 546 struct addrinfo hints, *res; 547 int error = -1; 548 549 newaddr &= 1; 550 551 sin->sin6_len = sizeof(*sin); 552 if (which != MASK) 553 sin->sin6_family = AF_INET6; 554 555 if (which == ADDR) { 556 char *p = NULL; 557 if((p = strrchr(s, '/')) != NULL) { 558 *p = '\0'; 559 in6_getprefix(p + 1, MASK); 560 explicit_prefix = 1; 561 } 562 } 563 564 if (sin->sin6_family == AF_INET6) { 565 bzero(&hints, sizeof(struct addrinfo)); 566 hints.ai_family = AF_INET6; 567 error = getaddrinfo(s, NULL, &hints, &res); 568 if (error != 0) { 569 if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1) 570 errx(1, "%s: bad value", s); 571 } else { 572 bcopy(res->ai_addr, sin, res->ai_addrlen); 573 freeaddrinfo(res); 574 } 575 } 576 } 577 578 static int 579 prefix(void *val, int size) 580 { 581 u_char *name = (u_char *)val; 582 int byte, bit, plen = 0; 583 584 for (byte = 0; byte < size; byte++, plen += 8) 585 if (name[byte] != 0xff) 586 break; 587 if (byte == size) 588 return (plen); 589 for (bit = 7; bit != 0; bit--, plen++) 590 if (!(name[byte] & (1 << bit))) 591 break; 592 for (; bit != 0; bit--) 593 if (name[byte] & (1 << bit)) 594 return(0); 595 byte++; 596 for (; byte < size; byte++) 597 if (name[byte]) 598 return(0); 599 return (plen); 600 } 601 #endif 602 603 static char * 604 sec2str(time_t total) 605 { 606 static char result[256]; 607 int days, hours, mins, secs; 608 int first = 1; 609 char *p = result; 610 611 if (0) { 612 days = total / 3600 / 24; 613 hours = (total / 3600) % 24; 614 mins = (total / 60) % 60; 615 secs = total % 60; 616 617 if (days) { 618 first = 0; 619 p += sprintf(p, "%dd", days); 620 } 621 if (!first || hours) { 622 first = 0; 623 p += sprintf(p, "%dh", hours); 624 } 625 if (!first || mins) { 626 first = 0; 627 p += sprintf(p, "%dm", mins); 628 } 629 sprintf(p, "%ds", secs); 630 } else 631 sprintf(result, "%lu", (unsigned long)total); 632 633 return(result); 634 } 635 636 static void 637 in6_postproc(if_ctx *ctx, int newaddr __unused, 638 int ifflags __unused) 639 { 640 if (explicit_prefix == 0) { 641 /* Aggregatable address architecture defines all prefixes 642 are 64. So, it is convenient to set prefixlen to 64 if 643 it is not specified. */ 644 setifprefixlen(ctx, "64", 0); 645 /* in6_getprefix("64", MASK) if MASK is available here... */ 646 } 647 } 648 649 static void 650 in6_status_tunnel(int s) 651 { 652 char src[NI_MAXHOST]; 653 char dst[NI_MAXHOST]; 654 struct in6_ifreq in6_ifr; 655 const struct sockaddr *sa = (const struct sockaddr *) &in6_ifr.ifr_addr; 656 657 memset(&in6_ifr, 0, sizeof(in6_ifr)); 658 strlcpy(in6_ifr.ifr_name, name, sizeof(in6_ifr.ifr_name)); 659 660 if (ioctl(s, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6_ifr) < 0) 661 return; 662 if (sa->sa_family != AF_INET6) 663 return; 664 if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0, 665 NI_NUMERICHOST) != 0) 666 src[0] = '\0'; 667 668 if (ioctl(s, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6_ifr) < 0) 669 return; 670 if (sa->sa_family != AF_INET6) 671 return; 672 if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0, 673 NI_NUMERICHOST) != 0) 674 dst[0] = '\0'; 675 676 printf("\ttunnel inet6 %s --> %s\n", src, dst); 677 } 678 679 static void 680 in6_set_tunnel(int s, struct addrinfo *srcres, struct addrinfo *dstres) 681 { 682 struct in6_aliasreq in6_addreq; 683 684 memset(&in6_addreq, 0, sizeof(in6_addreq)); 685 strlcpy(in6_addreq.ifra_name, name, sizeof(in6_addreq.ifra_name)); 686 memcpy(&in6_addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len); 687 memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr, 688 dstres->ai_addr->sa_len); 689 690 if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0) 691 warn("SIOCSIFPHYADDR_IN6"); 692 } 693 694 static void 695 in6_set_vhid(int vhid) 696 { 697 #ifdef WITHOUT_NETLINK 698 in6_addreq.ifra_vhid = vhid; 699 #else 700 in6_add.vhid = (uint32_t)vhid; 701 #endif 702 } 703 704 static struct cmd inet6_cmds[] = { 705 DEF_CMD_ARG("prefixlen", setifprefixlen), 706 DEF_CMD("anycast", IN6_IFF_ANYCAST, setip6flags), 707 DEF_CMD("tentative", IN6_IFF_TENTATIVE, setip6flags), 708 DEF_CMD("-tentative", -IN6_IFF_TENTATIVE, setip6flags), 709 DEF_CMD("deprecated", IN6_IFF_DEPRECATED, setip6flags), 710 DEF_CMD("-deprecated", -IN6_IFF_DEPRECATED, setip6flags), 711 DEF_CMD("autoconf", IN6_IFF_AUTOCONF, setip6flags), 712 DEF_CMD("-autoconf", -IN6_IFF_AUTOCONF, setip6flags), 713 DEF_CMD("prefer_source",IN6_IFF_PREFER_SOURCE, setip6flags), 714 DEF_CMD("-prefer_source",-IN6_IFF_PREFER_SOURCE,setip6flags), 715 DEF_CMD("accept_rtadv", ND6_IFF_ACCEPT_RTADV, setnd6flags), 716 DEF_CMD("-accept_rtadv",-ND6_IFF_ACCEPT_RTADV, setnd6flags), 717 DEF_CMD("no_radr", ND6_IFF_NO_RADR, setnd6flags), 718 DEF_CMD("-no_radr", -ND6_IFF_NO_RADR, setnd6flags), 719 DEF_CMD("defaultif", 1, setnd6defif), 720 DEF_CMD("-defaultif", -1, setnd6defif), 721 DEF_CMD("ifdisabled", ND6_IFF_IFDISABLED, setnd6flags), 722 DEF_CMD("-ifdisabled", -ND6_IFF_IFDISABLED, setnd6flags), 723 DEF_CMD("nud", ND6_IFF_PERFORMNUD, setnd6flags), 724 DEF_CMD("-nud", -ND6_IFF_PERFORMNUD, setnd6flags), 725 DEF_CMD("auto_linklocal",ND6_IFF_AUTO_LINKLOCAL,setnd6flags), 726 DEF_CMD("-auto_linklocal",-ND6_IFF_AUTO_LINKLOCAL,setnd6flags), 727 DEF_CMD("no_prefer_iface",ND6_IFF_NO_PREFER_IFACE,setnd6flags), 728 DEF_CMD("-no_prefer_iface",-ND6_IFF_NO_PREFER_IFACE,setnd6flags), 729 DEF_CMD("no_dad", ND6_IFF_NO_DAD, setnd6flags), 730 DEF_CMD("-no_dad", -ND6_IFF_NO_DAD, setnd6flags), 731 DEF_CMD_ARG("pltime", setip6pltime), 732 DEF_CMD_ARG("vltime", setip6vltime), 733 DEF_CMD("eui64", 0, setip6eui64), 734 #ifdef EXPERIMENTAL 735 DEF_CMD("ipv6_only", ND6_IFF_IPV6_ONLY_MANUAL,setnd6flags), 736 DEF_CMD("-ipv6_only", -ND6_IFF_IPV6_ONLY_MANUAL,setnd6flags), 737 #endif 738 }; 739 740 static struct afswtch af_inet6 = { 741 .af_name = "inet6", 742 .af_af = AF_INET6, 743 #ifdef WITHOUT_NETLINK 744 .af_status = in6_status, 745 #else 746 .af_status = in6_status_nl, 747 #endif 748 .af_getaddr = in6_getaddr, 749 .af_copyaddr = in6_copyaddr, 750 #ifdef WITHOUT_NETLINK 751 .af_getprefix = in6_getprefix, 752 #endif 753 .af_other_status = nd6_status, 754 .af_postproc = in6_postproc, 755 .af_status_tunnel = in6_status_tunnel, 756 .af_settunnel = in6_set_tunnel, 757 .af_setvhid = in6_set_vhid, 758 #ifdef WITHOUT_NETLINK 759 .af_difaddr = SIOCDIFADDR_IN6, 760 .af_aifaddr = SIOCAIFADDR_IN6, 761 .af_ridreq = &in6_addreq, 762 .af_addreq = &in6_addreq, 763 .af_exec = af_exec_ioctl, 764 #else 765 .af_difaddr = NL_RTM_DELADDR, 766 .af_aifaddr = NL_RTM_NEWADDR, 767 .af_ridreq = &in6_add, 768 .af_addreq = &in6_add, 769 .af_exec = in6_exec_nl, 770 #endif 771 }; 772 773 static void 774 in6_Lopt_cb(const char *arg __unused) 775 { 776 ip6lifetime++; /* print IPv6 address lifetime */ 777 } 778 static struct option in6_Lopt = { 779 .opt = "L", 780 .opt_usage = "[-L]", 781 .cb = in6_Lopt_cb 782 }; 783 784 static __constructor void 785 inet6_ctor(void) 786 { 787 size_t i; 788 789 #ifndef RESCUE 790 if (!feature_present("inet6")) 791 return; 792 #endif 793 794 for (i = 0; i < nitems(inet6_cmds); i++) 795 cmd_register(&inet6_cmds[i]); 796 af_register(&af_inet6); 797 opt_register(&in6_Lopt); 798 } 799