1/* 2 * Copyright (c) 2008-2013 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29/* 30 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. Neither the name of the project nor the names of its contributors 42 * may be used to endorse or promote products derived from this software 43 * without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 */ 57 58/* 59 * Copyright (c) 1982, 1986, 1990, 1993 60 * The Regents of the University of California. All rights reserved. 61 * 62 * Redistribution and use in source and binary forms, with or without 63 * modification, are permitted provided that the following conditions 64 * are met: 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 2. Redistributions in binary form must reproduce the above copyright 68 * notice, this list of conditions and the following disclaimer in the 69 * documentation and/or other materials provided with the distribution. 70 * 3. All advertising materials mentioning features or use of this software 71 * must display the following acknowledgement: 72 * This product includes software developed by the University of 73 * California, Berkeley and its contributors. 74 * 4. Neither the name of the University nor the names of its contributors 75 * may be used to endorse or promote products derived from this software 76 * without specific prior written permission. 77 * 78 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 79 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 80 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 81 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 82 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 83 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 84 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 85 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 86 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 87 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 88 * SUCH DAMAGE. 89 * 90 * @(#)in.h 8.3 (Berkeley) 1/3/94 91 */ 92 93#ifndef __KAME_NETINET_IN_H_INCLUDED_ 94#error "do not include netinet6/in6.h directly, include netinet/in.h. " \ 95 " see RFC2553" 96#endif 97 98#ifndef _NETINET6_IN6_H_ 99#define _NETINET6_IN6_H_ 100#include <sys/appleapiopts.h> 101#include <sys/_types.h> 102 103#include <sys/_types/_sa_family_t.h> 104 105/* 106 * Identification of the network protocol stack 107 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 108 * has the table of implementation/integration differences. 109 */ 110#define __KAME__ 111#define __KAME_VERSION "2009/apple-darwin" 112 113#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 114/* 115 * Local port number conventions: 116 * 117 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 118 * unless a kernel is compiled with IPNOPRIVPORTS defined. 119 * 120 * When a user does a bind(2) or connect(2) with a port number of zero, 121 * a non-conflicting local port address is chosen. 122 * 123 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 124 * that is settable by sysctl(3); net.inet.ip.anonportmin and 125 * net.inet.ip.anonportmax respectively. 126 * 127 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 128 * default assignment range. 129 * 130 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 131 * 132 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 133 * and exists only for FreeBSD compatibility purposes. 134 * 135 * The value IP_PORTRANGE_LOW changes the range to the "low" are 136 * that is (by convention) restricted to privileged processes. 137 * This convention is based on "vouchsafe" principles only. 138 * It is only secure if you trust the remote host to restrict these ports. 139 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 140 */ 141 142#define IPV6PORT_RESERVED 1024 143#define IPV6PORT_ANONMIN 49152 144#define IPV6PORT_ANONMAX 65535 145#define IPV6PORT_RESERVEDMIN 600 146#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 147#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 148 149/* 150 * IPv6 address 151 */ 152struct in6_addr { 153 union { 154 __uint8_t __u6_addr8[16]; 155 __uint16_t __u6_addr16[8]; 156 __uint32_t __u6_addr32[4]; 157 } __u6_addr; /* 128-bit IP6 address */ 158}; 159 160#define s6_addr __u6_addr.__u6_addr8 161#ifdef KERNEL /* XXX nonstandard */ 162#define s6_addr8 __u6_addr.__u6_addr8 163#define s6_addr16 __u6_addr.__u6_addr16 164#define s6_addr32 __u6_addr.__u6_addr32 165#endif 166 167#define INET6_ADDRSTRLEN 46 168 169/* 170 * Socket address for IPv6 171 */ 172#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 173#define SIN6_LEN 174#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 175struct sockaddr_in6 { 176 __uint8_t sin6_len; /* length of this struct(sa_family_t) */ 177 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 178 in_port_t sin6_port; /* Transport layer port # (in_port_t) */ 179 __uint32_t sin6_flowinfo; /* IP6 flow information */ 180 struct in6_addr sin6_addr; /* IP6 address */ 181 __uint32_t sin6_scope_id; /* scope zone index */ 182}; 183 184#ifdef KERNEL /* XXX nonstandard */ 185/* 186 * Local definition for masks 187 */ 188#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 189#define IN6MASK7 {{{ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 190 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 191#define IN6MASK16 {{{ 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 192 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 193#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 195#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 197#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 198 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 199#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 200 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 201#endif 202 203#ifdef KERNEL_PRIVATE 204extern const struct sockaddr_in6 sa6_any; 205 206extern const struct in6_addr in6mask0; 207extern const struct in6_addr in6mask7; 208extern const struct in6_addr in6mask16; 209extern const struct in6_addr in6mask32; 210extern const struct in6_addr in6mask64; 211extern const struct in6_addr in6mask96; 212extern const struct in6_addr in6mask128; 213 214#define SIN6(s) ((struct sockaddr_in6 *)(void *)s) 215#define satosin6(sa) SIN6(sa) 216#define sin6tosa(sin6) ((struct sockaddr *)(void *)(sin6)) 217#define SIN6IFSCOPE(s) SIN6(s) 218#endif /* KERNEL_PRIVATE */ 219 220#ifdef KERNEL /* XXX nonstandard */ 221/* 222 * Macros started with IPV6_ADDR is KAME local 223 */ 224#if BYTE_ORDER == BIG_ENDIAN 225#define IPV6_ADDR_INT32_ONE 1 226#define IPV6_ADDR_INT32_TWO 2 227#define IPV6_ADDR_INT32_MNL 0xff010000 228#define IPV6_ADDR_INT32_MLL 0xff020000 229#define IPV6_ADDR_INT32_SMP 0x0000ffff 230#define IPV6_ADDR_INT16_ULL 0xfe80 231#define IPV6_ADDR_INT16_USL 0xfec0 232#define IPV6_ADDR_INT16_MLL 0xff02 233#elif BYTE_ORDER == LITTLE_ENDIAN 234#define IPV6_ADDR_INT32_ONE 0x01000000 235#define IPV6_ADDR_INT32_TWO 0x02000000 236#define IPV6_ADDR_INT32_MNL 0x000001ff 237#define IPV6_ADDR_INT32_MLL 0x000002ff 238#define IPV6_ADDR_INT32_SMP 0xffff0000 239#define IPV6_ADDR_INT16_ULL 0x80fe 240#define IPV6_ADDR_INT16_USL 0xc0fe 241#define IPV6_ADDR_INT16_MLL 0x02ff 242#endif 243#endif 244 245/* 246 * Definition of some useful macros to handle IP6 addresses 247 */ 248#define IN6ADDR_ANY_INIT \ 249 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 251#define IN6ADDR_LOOPBACK_INIT \ 252 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 253 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 254#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 255#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 256 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 257 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 258#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 259 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 260 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 261#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 262 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 264#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 265 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 266 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 267#define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 268 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 269 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 270#define IN6ADDR_V4MAPPED_INIT \ 271 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 272 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 273#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 274 275extern const struct in6_addr in6addr_any; 276extern const struct in6_addr in6addr_loopback; 277#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 278extern const struct in6_addr in6addr_nodelocal_allnodes; 279extern const struct in6_addr in6addr_linklocal_allnodes; 280extern const struct in6_addr in6addr_linklocal_allrouters; 281extern const struct in6_addr in6addr_linklocal_allv2routers; 282#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 283 284/* 285 * Equality 286 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 287 * does not supply memcmp(). For userland memcmp() is preferred as it is 288 * in ANSI standard. 289 */ 290#ifdef KERNEL 291#define IN6_ARE_ADDR_EQUAL(a, b) \ 292 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], \ 293 sizeof (struct in6_addr)) == 0) 294#else 295#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 296#define IN6_ARE_ADDR_EQUAL(a, b) \ 297 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof (struct in6_addr)) \ 298 == 0) 299#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 300#endif 301 302#ifdef KERNEL /* non standard */ 303/* see if two addresses are equal in a scope-conscious manner. */ 304#define SA6_ARE_ADDR_EQUAL(a, b) \ 305 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 306 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 307 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof (struct in6_addr)) == 0)) 308#endif 309 310/* 311 * Unspecified 312 */ 313#define IN6_IS_ADDR_UNSPECIFIED(a) \ 314 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 315 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 316 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 317 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 318 319/* 320 * Loopback 321 */ 322#define IN6_IS_ADDR_LOOPBACK(a) \ 323 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 324 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 325 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 326 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 327 328/* 329 * IPv4 compatible 330 */ 331#define IN6_IS_ADDR_V4COMPAT(a) \ 332 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 333 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 334 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 335 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 336 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 337 338/* 339 * Mapped 340 */ 341#define IN6_IS_ADDR_V4MAPPED(a) \ 342 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 343 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 344 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == \ 345 ntohl(0x0000ffff))) 346 347/* 348 * 6to4 349 */ 350#define IN6_IS_ADDR_6TO4(x) (ntohs((x)->s6_addr16[0]) == 0x2002) 351 352/* 353 * KAME Scope Values 354 */ 355 356#ifdef KERNEL /* XXX nonstandard */ 357#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 358#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 359#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 360#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 361#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 362#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 363#else 364#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 365#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 366#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 367#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 368#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 369#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 370#endif 371 372/* 373 * Unicast Scope 374 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 375 */ 376#define IN6_IS_ADDR_LINKLOCAL(a) \ 377 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 378#define IN6_IS_ADDR_SITELOCAL(a) \ 379 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 380 381/* 382 * Multicast 383 */ 384#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 385 386/* 387 * Unique Local IPv6 Unicast Addresses (per RFC 4193) 388 */ 389#define IN6_IS_ADDR_UNIQUE_LOCAL(a) \ 390 (((a)->s6_addr[0] == 0xfc) || ((a)->s6_addr[0] == 0xfd)) 391 392#ifdef KERNEL /* XXX nonstandard */ 393#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 394#else 395#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 396#endif 397 398/* 399 * Multicast Scope 400 */ 401#ifdef KERNEL /* refers nonstandard items */ 402#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 403 (IN6_IS_ADDR_MULTICAST(a) && \ 404 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 405#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 406 (IN6_IS_ADDR_MULTICAST(a) && \ 407 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 408#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 409 (IN6_IS_ADDR_MULTICAST(a) && \ 410 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 411#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 412 (IN6_IS_ADDR_MULTICAST(a) && \ 413 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 414#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 415 (IN6_IS_ADDR_MULTICAST(a) && \ 416 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 417#define IN6_IS_ADDR_MC_GLOBAL(a) \ 418 (IN6_IS_ADDR_MULTICAST(a) && \ 419 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 420#else 421#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 422 (IN6_IS_ADDR_MULTICAST(a) && \ 423 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 424#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 425 (IN6_IS_ADDR_MULTICAST(a) && \ 426 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 427#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 428 (IN6_IS_ADDR_MULTICAST(a) && \ 429 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 430#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 431 (IN6_IS_ADDR_MULTICAST(a) && \ 432 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 433#define IN6_IS_ADDR_MC_GLOBAL(a) \ 434 (IN6_IS_ADDR_MULTICAST(a) && \ 435 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 436#endif 437 438#ifdef KERNEL /* nonstandard */ 439/* 440 * KAME Scope 441 */ 442#define IN6_IS_SCOPE_LINKLOCAL(a) \ 443 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 444 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 445 446#define IN6_IS_SCOPE_EMBED(a) \ 447 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 448 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 449 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 450 451#define IFA6_IS_DEPRECATED(a, t) \ 452 ((a)->ia6_lifetime.ia6ti_preferred != 0 && \ 453 (a)->ia6_lifetime.ia6ti_preferred < (t)) 454#define IFA6_IS_INVALID(a, t) \ 455 ((a)->ia6_lifetime.ia6ti_expire != 0 && \ 456 (a)->ia6_lifetime.ia6ti_expire < (t)) 457#endif /* KERNEL */ 458 459#ifdef PRIVATE 460struct route_in6_old { 461 void *ro_rt; 462 uint32_t ro_flags; 463 struct sockaddr_in6 ro_dst; 464}; 465#endif /* PRIVATE */ 466 467#ifdef BSD_KERNEL_PRIVATE 468/* 469 * IP6 route structure 470 * 471 * A route consists of a destination address and a reference 472 * to a routing entry. These are often held by protocols 473 * in their control blocks, e.g. inpcb. 474 */ 475struct route_in6 { 476 /* 477 * N.B: struct route_in6 must begin with ro_{rt,srcia,flags} 478 * because the code does some casts of a 'struct route_in6 *' 479 * to a 'struct route *'. 480 */ 481 struct rtentry *ro_rt; 482 struct ifaddr *ro_srcia; 483 uint32_t ro_flags; /* route flags */ 484 struct sockaddr_in6 ro_dst; 485}; 486#endif /* BSD_KERNEL_PRIVATE */ 487 488/* 489 * Options for use with [gs]etsockopt at the IPV6 level. 490 * First word of comment is data type; bool is stored in int. 491 */ 492/* no hdrincl */ 493#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 494/* 495 * RFC 3542 define the following socket options in a manner incompatible 496 * with RFC 2292: 497 * IPV6_PKTINFO 498 * IPV6_HOPLIMIT 499 * IPV6_NEXTHOP 500 * IPV6_HOPOPTS 501 * IPV6_DSTOPTS 502 * IPV6_RTHDR 503 * 504 * To use the new IPv6 Sockets options introduced by RFC 3542 505 * the constant __APPLE_USE_RFC_3542 must be defined before 506 * including <netinet/in.h> 507 * 508 * To use the old IPv6 Sockets options from RFC 2292 509 * the constant __APPLE_USE_RFC_2292 must be defined before 510 * including <netinet/in.h> 511 * 512 * Note that eventually RFC 3542 is going to be the 513 * default and RFC 2292 will be obsolete. 514 */ 515#ifdef BSD_KERNEL_PRIVATE 516#define __APPLE_USE_RFC_3542 1 517#endif /* BSD_KERNEL_PRIVATE */ 518 519#if defined(__APPLE_USE_RFC_3542) && defined(__APPLE_USE_RFC_2292) 520#error "__APPLE_USE_RFC_3542 and __APPLE_USE_RFC_2292 cannot be both defined" 521#endif 522 523#if 0 /* the followings are relic in IPv4 and hence are disabled */ 524#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 525#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 526#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 527#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 528#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 529#endif /* 0 */ 530#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 531#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 532#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 533#define IPV6_MULTICAST_IF 9 /* __uint8_t; set/get IP6 multicast i/f */ 534#define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */ 535#define IPV6_MULTICAST_LOOP 11 /* __uint8_t; set/get IP6 mcast loopback */ 536#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 537#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 538 539#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 540#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 541#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 542#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 543#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 544#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 545#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 546#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 547#define IPV6_2292RTHDR 24 /* ip6_rthdr: routing header */ 548 549/* buf/cmsghdr; set/get IPv6 options [obsoleted by RFC3542] */ 550#define IPV6_2292PKTOPTIONS 25 551 552#ifdef __APPLE_USE_RFC_2292 553#define IPV6_PKTINFO IPV6_2292PKTINFO 554#define IPV6_HOPLIMIT IPV6_2292HOPLIMIT 555#define IPV6_NEXTHOP IPV6_2292NEXTHOP 556#define IPV6_HOPOPTS IPV6_2292HOPOPTS 557#define IPV6_DSTOPTS IPV6_2292DSTOPTS 558#define IPV6_RTHDR IPV6_2292RTHDR 559#define IPV6_PKTOPTIONS IPV6_2292PKTOPTIONS 560#endif /* __APPLE_USE_RFC_2292 */ 561 562#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 563#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 564#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 565#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 566#ifndef KERNEL 567#define IPV6_BINDV6ONLY IPV6_V6ONLY 568#endif /* KERNEL */ 569 570 571#if 1 /* IPSEC */ 572#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 573#endif /* 1 */ 574#define IPV6_FAITH 29 /* deprecated */ 575 576#if 1 /* IPV6FIREWALL */ 577#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 578#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 579#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 580#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 581#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 582#endif /* 1 */ 583 584/* 585 * APPLE: NOTE the value of those 2 options is kept unchanged from 586 * previous version of darwin/OS X for binary compatibility reasons 587 * and differ from FreeBSD (values 57 and 61). See below. 588 */ 589#define IPV6_RECVTCLASS 35 /* bool; recv traffic class values */ 590#define IPV6_TCLASS 36 /* int; send traffic class value */ 591 592#ifdef __APPLE_USE_RFC_3542 593/* new socket options introduced in RFC3542 */ 594/* 595 * ip6_dest; send dst option before rthdr 596 * APPLE: Value purposely different than FreeBSD (35) to avoid 597 * collision with definition of IPV6_RECVTCLASS in previous 598 * darwin implementations 599 */ 600#define IPV6_RTHDRDSTOPTS 57 601 602/* 603 * bool; recv if, dst addr 604 * APPLE: Value purposely different than FreeBSD(36) to avoid 605 * collision with definition of IPV6_TCLASS in previous 606 * darwin implementations 607 */ 608#define IPV6_RECVPKTINFO 61 609 610#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 611#define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 612#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 613#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 614#ifdef KERNEL 615#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 616#endif 617 618#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 619#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 620 621/* 622 * mtuinfo; get the current path MTU (sopt), 4 bytes int; 623 * MTU notification (cmsg) 624 */ 625#define IPV6_PATHMTU 44 626 627#if 0 /* obsoleted during 2292bis -> 3542 */ 628/* no data; ND reachability confirm (cmsg only/not in of RFC3542) */ 629#define IPV6_REACHCONF 45 630#endif 631/* more new socket options introduced in RFC3542 */ 632#define IPV6_3542PKTINFO 46 /* in6_pktinfo; send if, src addr */ 633#define IPV6_3542HOPLIMIT 47 /* int; send hop limit */ 634#define IPV6_3542NEXTHOP 48 /* sockaddr; next hop addr */ 635#define IPV6_3542HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 636#define IPV6_3542DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 637#define IPV6_3542RTHDR 51 /* ip6_rthdr; send routing header */ 638 639#define IPV6_PKTINFO IPV6_3542PKTINFO 640#define IPV6_HOPLIMIT IPV6_3542HOPLIMIT 641#define IPV6_NEXTHOP IPV6_3542NEXTHOP 642#define IPV6_HOPOPTS IPV6_3542HOPOPTS 643#define IPV6_DSTOPTS IPV6_3542DSTOPTS 644#define IPV6_RTHDR IPV6_3542RTHDR 645 646#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 647 648#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 649 650/* int; prefer temporary addresses as the source address. */ 651#define IPV6_PREFER_TEMPADDR 63 652 653/* 654 * The following option is private; do not use it from user applications. 655 * It is deliberately defined to the same value as IP_MSFILTER. 656 */ 657#define IPV6_MSFILTER 74 /* struct __msfilterreq; */ 658#endif /* __APPLE_USE_RFC_3542 */ 659 660#define IPV6_BOUND_IF 125 /* int; set/get bound interface */ 661 662#ifdef PRIVATE 663#define IPV6_NO_IFT_CELLULAR 6969 /* for internal use only */ 664#define IPV6_OUT_IF 9696 /* for internal use only */ 665#endif /* PRIVATE */ 666 667/* to define items, should talk with KAME guys first, for *BSD compatibility */ 668 669#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. */ 670#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. */ 671#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 672 673/* 674 * Defaults and limits for options 675 */ 676#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 677#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 678 679/* 680 * The im6o_membership vector for each socket is now dynamically allocated at 681 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 682 * according to a power-of-two increment. 683 */ 684#define IPV6_MIN_MEMBERSHIPS 31 685#define IPV6_MAX_MEMBERSHIPS 4095 686 687/* 688 * Default resource limits for IPv6 multicast source filtering. 689 * These may be modified by sysctl. 690 */ 691#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 692#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 693 694/* 695 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 696 */ 697struct ipv6_mreq { 698 struct in6_addr ipv6mr_multiaddr; 699 unsigned int ipv6mr_interface; 700}; 701 702/* 703 * IPV6_2292PKTINFO: Packet information(RFC2292 sec 5) 704 */ 705struct in6_pktinfo { 706 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 707 unsigned int ipi6_ifindex; /* send/recv interface index */ 708}; 709 710/* 711 * Control structure for IPV6_RECVPATHMTU socket option. 712 */ 713struct ip6_mtuinfo { 714 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 715 uint32_t ip6m_mtu; 716}; 717 718/* 719 * Argument for IPV6_PORTRANGE: 720 * - which range to search when port is unspecified at bind() or connect() 721 */ 722#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 723#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 724#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 725 726/* 727 * Definitions for inet6 sysctl operations. 728 * 729 * Third level is protocol number. 730 * Fourth level is desired variable within that protocol. 731 */ 732#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 733 734/* 735 * Names for IP sysctl objects 736 */ 737#define IPV6CTL_FORWARDING 1 /* act as router */ 738#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 739#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 740#ifdef notyet 741#define IPV6CTL_DEFMTU 4 /* default MTU */ 742#endif 743#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 744#define IPV6CTL_STATS 6 /* stats */ 745#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 746#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 747#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 748#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 749#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 750#define IPV6CTL_ACCEPT_RTADV 12 751#define IPV6CTL_KEEPFAITH 13 /* deprecated */ 752#define IPV6CTL_LOG_INTERVAL 14 753#define IPV6CTL_HDRNESTLIMIT 15 754#define IPV6CTL_DAD_COUNT 16 755#define IPV6CTL_AUTO_FLOWLABEL 17 756#define IPV6CTL_DEFMCASTHLIM 18 757#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 758#define IPV6CTL_KAME_VERSION 20 759#define IPV6CTL_USE_DEPRECATED 21 /* use deprec addr (RFC2462 5.5.4) */ 760#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 761#if 0 /* obsolete */ 762#define IPV6CTL_MAPPED_ADDR 23 763#endif 764#define IPV6CTL_V6ONLY 24 765#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 766#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 767#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 768 769#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses [RFC 4941] */ 770#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 771#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 772#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 773#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 774#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 775#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 776#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 777 778#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 779#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for mcast? */ 780 781#define IPV6CTL_NEIGHBORGCTHRESH 46 782#define IPV6CTL_MAXIFPREFIXES 47 783#define IPV6CTL_MAXIFDEFROUTERS 48 784#define IPV6CTL_MAXDYNROUTES 49 785#define ICMPV6CTL_ND6_ONLINKNSRFC4861 50 786 787/* New entries should be added here from current IPV6CTL_MAXID value. */ 788/* to define items, should talk with KAME guys first, for *BSD compatibility */ 789#define IPV6CTL_MAXID 51 790 791#ifdef BSD_KERNEL_PRIVATE 792#define CTL_IPV6PROTO_NAMES { \ 793 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 794 { 0, 0 }, \ 795 { "tcp6", CTLTYPE_NODE }, \ 796 { 0, 0 }, \ 797 { 0, 0 }, \ 798 { 0, 0 }, \ 799 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 800 { 0, 0 }, \ 801 { 0, 0 }, \ 802 { "udp6", CTLTYPE_NODE }, \ 803 { 0, 0 }, \ 804 { 0, 0 }, \ 805 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 806 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 807 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 808 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 809 { 0, 0 }, \ 810 { "ip6", CTLTYPE_NODE }, \ 811 { 0, 0 }, \ 812 { 0, 0 }, \ 813 { 0, 0 }, \ 814 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 815 { 0, 0 }, \ 816 { "ipsec6", CTLTYPE_NODE }, \ 817 { 0, 0 }, \ 818 { 0, 0 }, \ 819 { 0, 0 }, \ 820 { 0, 0 }, \ 821 { 0, 0 }, \ 822 { 0, 0 }, \ 823 { "icmp6", CTLTYPE_NODE }, \ 824 { 0, 0 }, \ 825 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 826 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 827 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 828 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 829 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 830 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 831 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 832 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 833 { 0, 0 }, \ 834 { 0, 0 }, \ 835 { 0, 0 }, \ 836 { 0, 0 }, \ 837} 838/* 839 * Redefinition of mbuf flags 840 */ 841#define M_AUTHIPHDR M_PROTO2 842#define M_DECRYPTED M_PROTO3 843#define M_AUTHIPDGM M_PROTO5 844 845struct cmsghdr; 846struct mbuf; 847struct ifnet; 848struct in6_aliasreq; 849 850extern uint16_t in6_pseudo(const struct in6_addr *, const struct in6_addr *, 851 uint32_t); 852extern u_int16_t inet6_cksum(struct mbuf *, uint32_t, uint32_t, uint32_t); 853 854#define in6_cksum(_m, _n, _o, _l) \ 855 inet6_cksum(_m, _n, _o, _l) 856 857extern int in6_addrscope(struct in6_addr *); 858extern struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *); 859extern struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 860 861struct sockaddr; 862 863extern void in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6); 864extern void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 865 struct sockaddr_in6 *sin6); 866extern void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 867extern int in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam); 868 869extern uint32_t in6_finalize_cksum(struct mbuf *, uint32_t, int32_t, 870 int32_t, uint32_t); 871 872#define in6_delayed_cksum(_m) \ 873 ((void) in6_finalize_cksum(_m, 0, 0, -1, CSUM_DELAY_IPV6_DATA)) 874#define in6_delayed_cksum_offset(_m, _o, _s, _p) \ 875 ((void) in6_finalize_cksum(_m, _o, _s, _p, CSUM_DELAY_IPV6_DATA)) 876#endif /* BSD_KERNEL_PRIVATE */ 877 878#ifdef KERNEL_PRIVATE 879/* exporte for ApplicationFirewall */ 880extern int in6_localaddr(struct in6_addr *); 881extern int in6addr_local(struct in6_addr *); 882#endif /* KERNEL_PRIVATE */ 883 884#ifndef KERNEL 885__BEGIN_DECLS 886struct cmsghdr; 887 888extern int inet6_option_space(int); 889extern int inet6_option_init(void *, struct cmsghdr **, int); 890extern int inet6_option_append(struct cmsghdr *, const __uint8_t *, int, int); 891extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 892extern int inet6_option_next(const struct cmsghdr *, __uint8_t **); 893extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int); 894 895extern size_t inet6_rthdr_space(int, int); 896extern struct cmsghdr *inet6_rthdr_init(void *, int); 897extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 898 unsigned int); 899extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 900#if 0 /* not implemented yet */ 901extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 902#endif 903extern int inet6_rthdr_segments(const struct cmsghdr *); 904extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 905extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 906 907extern int inet6_opt_init(void *, socklen_t); 908extern int inet6_opt_append(void *, socklen_t, int, __uint8_t, socklen_t, 909 __uint8_t, void **); 910extern int inet6_opt_finish(void *, socklen_t, int); 911extern int inet6_opt_set_val(void *, int, void *, socklen_t); 912 913extern int inet6_opt_next(void *, socklen_t, int, __uint8_t *, socklen_t *, 914 void **); 915extern int inet6_opt_find(void *, socklen_t, int, __uint8_t, socklen_t *, 916 void **); 917extern int inet6_opt_get_val(void *, int, void *, socklen_t); 918extern socklen_t inet6_rth_space(int, int); 919extern void *inet6_rth_init(void *, socklen_t, int, int); 920extern int inet6_rth_add(void *, const struct in6_addr *); 921extern int inet6_rth_reverse(const void *, void *); 922extern int inet6_rth_segments(const void *); 923extern struct in6_addr *inet6_rth_getaddr(const void *, int); 924extern void addrsel_policy_init(void); 925__END_DECLS 926#endif /* !KERNEL */ 927#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 928#endif /* !_NETINET6_IN6_H_ */ 929