1 /* 2 * Copyright (c) 2008-2018 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 #include <sys/_types/_sa_family_t.h> 103 104 /* 105 * Identification of the network protocol stack 106 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 107 * has the table of implementation/integration differences. 108 */ 109 #define __KAME__ 110 #define __KAME_VERSION "2009/apple-darwin" 111 112 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 113 /* 114 * Local port number conventions: 115 * 116 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 117 * unless a kernel is compiled with IPNOPRIVPORTS defined. 118 * 119 * When a user does a bind(2) or connect(2) with a port number of zero, 120 * a non-conflicting local port address is chosen. 121 * 122 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 123 * that is settable by sysctl(3); net.inet.ip.anonportmin and 124 * net.inet.ip.anonportmax respectively. 125 * 126 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 127 * default assignment range. 128 * 129 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 130 * 131 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 132 * and exists only for FreeBSD compatibility purposes. 133 * 134 * The value IP_PORTRANGE_LOW changes the range to the "low" are 135 * that is (by convention) restricted to privileged processes. 136 * This convention is based on "vouchsafe" principles only. 137 * It is only secure if you trust the remote host to restrict these ports. 138 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 139 */ 140 141 #define IPV6PORT_RESERVED 1024 142 #define IPV6PORT_ANONMIN 49152 143 #define IPV6PORT_ANONMAX 65535 144 #define IPV6PORT_RESERVEDMIN 600 145 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 146 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 147 148 /* 149 * IPv6 address 150 */ 151 typedef struct in6_addr { 152 union { 153 __uint8_t __u6_addr8[16]; 154 __uint16_t __u6_addr16[8]; 155 __uint32_t __u6_addr32[4]; 156 } __u6_addr; /* 128-bit IP6 address */ 157 } in6_addr_t; 158 159 #define s6_addr __u6_addr.__u6_addr8 160 161 #define INET6_ADDRSTRLEN 46 162 163 /* 164 * Socket address for IPv6 165 */ 166 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 167 #define SIN6_LEN 168 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 169 struct sockaddr_in6 { 170 __uint8_t sin6_len; /* length of this struct(sa_family_t) */ 171 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 172 in_port_t sin6_port; /* Transport layer port # (in_port_t) */ 173 __uint32_t sin6_flowinfo; /* IP6 flow information */ 174 struct in6_addr sin6_addr; /* IP6 address */ 175 __uint32_t sin6_scope_id; /* scope zone index */ 176 }; 177 178 179 180 181 /* 182 * Definition of some useful macros to handle IP6 addresses 183 */ 184 #define IN6ADDR_ANY_INIT \ 185 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 186 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 187 #define IN6ADDR_LOOPBACK_INIT \ 188 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 189 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 190 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 191 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 192 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 193 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 194 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 195 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 197 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 198 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 199 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 200 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 201 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 203 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 204 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 206 #define IN6ADDR_V4MAPPED_INIT \ 207 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 209 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 210 211 extern const struct in6_addr in6addr_any; 212 extern const struct in6_addr in6addr_loopback; 213 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 214 extern const struct in6_addr in6addr_nodelocal_allnodes; 215 extern const struct in6_addr in6addr_linklocal_allnodes; 216 extern const struct in6_addr in6addr_linklocal_allrouters; 217 extern const struct in6_addr in6addr_linklocal_allv2routers; 218 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 219 220 /* 221 * Equality 222 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 223 * does not supply memcmp(). For userland memcmp() is preferred as it is 224 * in ANSI standard. 225 */ 226 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 227 #define IN6_ARE_ADDR_EQUAL(a, b) \ 228 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof (struct in6_addr)) \ 229 == 0) 230 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 231 232 233 /* 234 * Unspecified 235 */ 236 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 237 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 238 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 239 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 240 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 241 242 /* 243 * Loopback 244 */ 245 #define IN6_IS_ADDR_LOOPBACK(a) \ 246 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 247 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 248 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 249 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 250 251 /* 252 * IPv4 compatible 253 */ 254 #define IN6_IS_ADDR_V4COMPAT(a) \ 255 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 256 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 257 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 258 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 259 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 260 261 /* 262 * Mapped 263 */ 264 #define IN6_IS_ADDR_V4MAPPED(a) \ 265 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 266 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 267 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == \ 268 ntohl(0x0000ffff))) 269 270 /* 271 * 6to4 272 */ 273 #define IN6_IS_ADDR_6TO4(x) (ntohs((x)->s6_addr16[0]) == 0x2002) 274 275 /* 276 * KAME Scope Values 277 */ 278 279 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 280 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 281 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 282 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 283 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 284 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 285 286 /* 287 * Unicast Scope 288 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 289 */ 290 #define IN6_IS_ADDR_LINKLOCAL(a) \ 291 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 292 #define IN6_IS_ADDR_SITELOCAL(a) \ 293 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 294 295 /* 296 * Multicast 297 */ 298 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 299 300 /* 301 * Unique Local IPv6 Unicast Addresses (per RFC 4193) 302 */ 303 #define IN6_IS_ADDR_UNIQUE_LOCAL(a) \ 304 (((a)->s6_addr[0] == 0xfc) || ((a)->s6_addr[0] == 0xfd)) 305 306 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 307 308 /* 309 * Multicast Scope 310 */ 311 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 312 (IN6_IS_ADDR_MULTICAST(a) && \ 313 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 314 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 317 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 320 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 323 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 326 327 328 329 330 /* 331 * Options for use with [gs]etsockopt at the IPV6 level. 332 * First word of comment is data type; bool is stored in int. 333 */ 334 /* no hdrincl */ 335 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 336 /* 337 * RFC 3542 define the following socket options in a manner incompatible 338 * with RFC 2292: 339 * IPV6_PKTINFO 340 * IPV6_HOPLIMIT 341 * IPV6_NEXTHOP 342 * IPV6_HOPOPTS 343 * IPV6_DSTOPTS 344 * IPV6_RTHDR 345 * 346 * To use the new IPv6 Sockets options introduced by RFC 3542 347 * the constant __APPLE_USE_RFC_3542 must be defined before 348 * including <netinet/in.h> 349 * 350 * To use the old IPv6 Sockets options from RFC 2292 351 * the constant __APPLE_USE_RFC_2292 must be defined before 352 * including <netinet/in.h> 353 * 354 * Note that eventually RFC 3542 is going to be the 355 * default and RFC 2292 will be obsolete. 356 */ 357 358 #if defined(__APPLE_USE_RFC_3542) && defined(__APPLE_USE_RFC_2292) 359 #error "__APPLE_USE_RFC_3542 and __APPLE_USE_RFC_2292 cannot be both defined" 360 #endif 361 362 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 363 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 364 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 365 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 366 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 367 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 368 #endif /* 0 */ 369 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 370 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 371 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 372 #define IPV6_MULTICAST_IF 9 /* __uint8_t; set/get IP6 multicast i/f */ 373 #define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */ 374 #define IPV6_MULTICAST_LOOP 11 /* __uint8_t; set/get IP6 mcast loopback */ 375 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 376 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 377 378 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 379 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 380 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 381 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 382 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 383 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 384 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 385 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 386 #define IPV6_2292RTHDR 24 /* ip6_rthdr: routing header */ 387 388 /* buf/cmsghdr; set/get IPv6 options [obsoleted by RFC3542] */ 389 #define IPV6_2292PKTOPTIONS 25 390 391 #ifdef __APPLE_USE_RFC_2292 392 #define IPV6_PKTINFO IPV6_2292PKTINFO 393 #define IPV6_HOPLIMIT IPV6_2292HOPLIMIT 394 #define IPV6_NEXTHOP IPV6_2292NEXTHOP 395 #define IPV6_HOPOPTS IPV6_2292HOPOPTS 396 #define IPV6_DSTOPTS IPV6_2292DSTOPTS 397 #define IPV6_RTHDR IPV6_2292RTHDR 398 #define IPV6_PKTOPTIONS IPV6_2292PKTOPTIONS 399 #endif /* __APPLE_USE_RFC_2292 */ 400 401 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 402 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 403 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 404 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 405 #define IPV6_BINDV6ONLY IPV6_V6ONLY 406 407 408 #if 1 /* IPSEC */ 409 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 410 #endif /* 1 */ 411 #define IPV6_FAITH 29 /* deprecated */ 412 413 #if 1 /* IPV6FIREWALL */ 414 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 415 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 416 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 417 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 418 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 419 #endif /* 1 */ 420 421 /* 422 * APPLE: NOTE the value of those 2 options is kept unchanged from 423 * previous version of darwin/OS X for binary compatibility reasons 424 * and differ from FreeBSD (values 57 and 61). See below. 425 */ 426 #define IPV6_RECVTCLASS 35 /* bool; recv traffic class values */ 427 #define IPV6_TCLASS 36 /* int; send traffic class value */ 428 429 #ifdef __APPLE_USE_RFC_3542 430 /* new socket options introduced in RFC3542 */ 431 /* 432 * ip6_dest; send dst option before rthdr 433 * APPLE: Value purposely different than FreeBSD (35) to avoid 434 * collision with definition of IPV6_RECVTCLASS in previous 435 * darwin implementations 436 */ 437 #define IPV6_RTHDRDSTOPTS 57 438 439 /* 440 * bool; recv if, dst addr 441 * APPLE: Value purposely different than FreeBSD(36) to avoid 442 * collision with definition of IPV6_TCLASS in previous 443 * darwin implementations 444 */ 445 #define IPV6_RECVPKTINFO 61 446 447 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 448 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 449 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 450 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 451 452 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 453 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 454 455 /* 456 * mtuinfo; get the current path MTU (sopt), 4 bytes int; 457 * MTU notification (cmsg) 458 */ 459 #define IPV6_PATHMTU 44 460 461 #if 0 /* obsoleted during 2292bis -> 3542 */ 462 /* no data; ND reachability confirm (cmsg only/not in of RFC3542) */ 463 #define IPV6_REACHCONF 45 464 #endif 465 /* more new socket options introduced in RFC3542 */ 466 #define IPV6_3542PKTINFO 46 /* in6_pktinfo; send if, src addr */ 467 #define IPV6_3542HOPLIMIT 47 /* int; send hop limit */ 468 #define IPV6_3542NEXTHOP 48 /* sockaddr; next hop addr */ 469 #define IPV6_3542HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 470 #define IPV6_3542DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 471 #define IPV6_3542RTHDR 51 /* ip6_rthdr; send routing header */ 472 473 #define IPV6_PKTINFO IPV6_3542PKTINFO 474 #define IPV6_HOPLIMIT IPV6_3542HOPLIMIT 475 #define IPV6_NEXTHOP IPV6_3542NEXTHOP 476 #define IPV6_HOPOPTS IPV6_3542HOPOPTS 477 #define IPV6_DSTOPTS IPV6_3542DSTOPTS 478 #define IPV6_RTHDR IPV6_3542RTHDR 479 480 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 481 482 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 483 484 /* int; prefer temporary addresses as the source address. */ 485 #define IPV6_PREFER_TEMPADDR 63 486 487 /* 488 * The following option is private; do not use it from user applications. 489 * It is deliberately defined to the same value as IP_MSFILTER. 490 */ 491 #define IPV6_MSFILTER 74 /* struct __msfilterreq; */ 492 #endif /* __APPLE_USE_RFC_3542 */ 493 494 #define IPV6_BOUND_IF 125 /* int; set/get bound interface */ 495 496 497 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 498 499 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. */ 500 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. */ 501 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 502 503 /* 504 * Defaults and limits for options 505 */ 506 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 507 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 508 509 /* 510 * The im6o_membership vector for each socket is now dynamically allocated at 511 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 512 * according to a power-of-two increment. 513 */ 514 #define IPV6_MIN_MEMBERSHIPS 31 515 #define IPV6_MAX_MEMBERSHIPS 4095 516 517 /* 518 * Default resource limits for IPv6 multicast source filtering. 519 * These may be modified by sysctl. 520 */ 521 #define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 522 #define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 523 524 /* 525 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 526 */ 527 struct ipv6_mreq { 528 struct in6_addr ipv6mr_multiaddr; 529 unsigned int ipv6mr_interface; 530 }; 531 532 /* 533 * IPV6_2292PKTINFO: Packet information(RFC2292 sec 5) 534 */ 535 struct in6_pktinfo { 536 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 537 unsigned int ipi6_ifindex; /* send/recv interface index */ 538 }; 539 540 /* 541 * Control structure for IPV6_RECVPATHMTU socket option. 542 */ 543 struct ip6_mtuinfo { 544 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 545 uint32_t ip6m_mtu; 546 }; 547 548 /* 549 * Argument for IPV6_PORTRANGE: 550 * - which range to search when port is unspecified at bind() or connect() 551 */ 552 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 553 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 554 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 555 556 /* 557 * Definitions for inet6 sysctl operations. 558 * 559 * Third level is protocol number. 560 * Fourth level is desired variable within that protocol. 561 */ 562 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 563 564 /* 565 * Names for IP sysctl objects 566 */ 567 #define IPV6CTL_FORWARDING 1 /* act as router */ 568 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 569 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 570 #ifdef notyet 571 #define IPV6CTL_DEFMTU 4 /* default MTU */ 572 #endif 573 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 574 #define IPV6CTL_STATS 6 /* stats */ 575 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 576 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 577 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 578 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 579 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 580 #define IPV6CTL_ACCEPT_RTADV 12 581 #define IPV6CTL_KEEPFAITH 13 /* deprecated */ 582 #define IPV6CTL_LOG_INTERVAL 14 583 #define IPV6CTL_HDRNESTLIMIT 15 584 #define IPV6CTL_DAD_COUNT 16 585 #define IPV6CTL_AUTO_FLOWLABEL 17 586 #define IPV6CTL_DEFMCASTHLIM 18 587 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 588 #define IPV6CTL_KAME_VERSION 20 589 #define IPV6CTL_USE_DEPRECATED 21 /* use deprec addr (RFC2462 5.5.4) */ 590 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 591 #if 0 /* obsolete */ 592 #define IPV6CTL_MAPPED_ADDR 23 593 #endif 594 #define IPV6CTL_V6ONLY 24 595 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 596 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 597 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 598 599 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses [RFC 4941] */ 600 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 601 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 602 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 603 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 604 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 605 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 606 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 607 608 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 609 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for mcast? */ 610 611 #define IPV6CTL_NEIGHBORGCTHRESH 46 612 #define IPV6CTL_MAXIFPREFIXES 47 613 #define IPV6CTL_MAXIFDEFROUTERS 48 614 #define IPV6CTL_MAXDYNROUTES 49 615 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 50 616 617 /* New entries should be added here from current IPV6CTL_MAXID value. */ 618 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 619 #define IPV6CTL_MAXID 51 620 621 622 623 624 625 __BEGIN_DECLS 626 struct cmsghdr; 627 628 extern int inet6_option_space(int); 629 extern int inet6_option_init(void *, struct cmsghdr **, int); 630 extern int inet6_option_append(struct cmsghdr *, const __uint8_t *, int, int); 631 extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 632 extern int inet6_option_next(const struct cmsghdr *, __uint8_t **); 633 extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int); 634 635 extern size_t inet6_rthdr_space(int, int); 636 extern struct cmsghdr *inet6_rthdr_init(void *, int); 637 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 638 unsigned int); 639 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 640 #if 0 /* not implemented yet */ 641 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 642 #endif 643 extern int inet6_rthdr_segments(const struct cmsghdr *); 644 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 645 extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 646 647 extern int inet6_opt_init(void *, socklen_t); 648 extern int inet6_opt_append(void *, socklen_t, int, __uint8_t, socklen_t, 649 __uint8_t, void **); 650 extern int inet6_opt_finish(void *, socklen_t, int); 651 extern int inet6_opt_set_val(void *, int, void *, socklen_t); 652 653 extern int inet6_opt_next(void *, socklen_t, int, __uint8_t *, socklen_t *, 654 void **); 655 extern int inet6_opt_find(void *, socklen_t, int, __uint8_t, socklen_t *, 656 void **); 657 extern int inet6_opt_get_val(void *, int, void *, socklen_t); 658 extern socklen_t inet6_rth_space(int, int); 659 extern void *inet6_rth_init(void *, socklen_t, int, int); 660 extern int inet6_rth_add(void *, const struct in6_addr *); 661 extern int inet6_rth_reverse(const void *, void *); 662 extern int inet6_rth_segments(const void *); 663 extern struct in6_addr *inet6_rth_getaddr(const void *, int); 664 665 __END_DECLS 666 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 667 #endif /* !_NETINET6_IN6_H_ */