1/* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.4 2001/07/04 09:45:23 ume Exp $ */ 2/* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */ 3 4/* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33/* 34 * Copyright (c) 1982, 1986, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in.h 8.3 (Berkeley) 1/3/94 66 */ 67 68#ifndef __KAME_NETINET_IN_H_INCLUDED_ 69#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 70#endif 71 72#ifndef _NETINET6_IN6_H_ 73#define _NETINET6_IN6_H_ 74#include <sys/appleapiopts.h> 75#include <sys/_types.h> 76 77 78#ifndef _SA_FAMILY_T 79#define _SA_FAMILY_T 80typedef __uint8_t sa_family_t; 81#endif 82 83/* 84 * Identification of the network protocol stack 85 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 86 * has the table of implementation/integration differences. 87 */ 88#define __KAME__ 89#define __KAME_VERSION "20010528/apple-darwin" 90 91#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 92/* 93 * Local port number conventions: 94 * 95 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 96 * unless a kernel is compiled with IPNOPRIVPORTS defined. 97 * 98 * When a user does a bind(2) or connect(2) with a port number of zero, 99 * a non-conflicting local port address is chosen. 100 * 101 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 102 * that is settable by sysctl(3); net.inet.ip.anonportmin and 103 * net.inet.ip.anonportmax respectively. 104 * 105 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 106 * default assignment range. 107 * 108 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 109 * 110 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 111 * and exists only for FreeBSD compatibility purposes. 112 * 113 * The value IP_PORTRANGE_LOW changes the range to the "low" are 114 * that is (by convention) restricted to privileged processes. 115 * This convention is based on "vouchsafe" principles only. 116 * It is only secure if you trust the remote host to restrict these ports. 117 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 118 */ 119 120#define IPV6PORT_RESERVED 1024 121#define IPV6PORT_ANONMIN 49152 122#define IPV6PORT_ANONMAX 65535 123#define IPV6PORT_RESERVEDMIN 600 124#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 125#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 126 127/* 128 * IPv6 address 129 */ 130struct in6_addr { 131 union { 132 __uint8_t __u6_addr8[16]; 133 __uint16_t __u6_addr16[8]; 134 __uint32_t __u6_addr32[4]; 135 } __u6_addr; /* 128-bit IP6 address */ 136}; 137 138#define s6_addr __u6_addr.__u6_addr8 139#ifdef KERNEL /*XXX nonstandard*/ 140#define s6_addr8 __u6_addr.__u6_addr8 141#define s6_addr16 __u6_addr.__u6_addr16 142#define s6_addr32 __u6_addr.__u6_addr32 143#endif 144 145#define INET6_ADDRSTRLEN 46 146 147/* 148 * Socket address for IPv6 149 */ 150#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 151#define SIN6_LEN 152#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 153struct sockaddr_in6 { 154 __uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 155 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 156 in_port_t sin6_port; /* Transport layer port # (in_port_t)*/ 157 __uint32_t sin6_flowinfo; /* IP6 flow information */ 158 struct in6_addr sin6_addr; /* IP6 address */ 159 __uint32_t sin6_scope_id; /* scope zone index */ 160}; 161 162/* 163 * Local definition for masks 164 */ 165#ifdef KERNEL /*XXX nonstandard*/ 166#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 167#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 168 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 169#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 171#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 172 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 173#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 174 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 175#endif 176 177#ifdef KERNEL_PRIVATE 178extern const struct sockaddr_in6 sa6_any; 179 180extern const struct in6_addr in6mask0; 181extern const struct in6_addr in6mask32; 182extern const struct in6_addr in6mask64; 183extern const struct in6_addr in6mask96; 184extern const struct in6_addr in6mask128; 185#endif /* KERNEL_PRIVATE */ 186 187 188/* 189 * Macros started with IPV6_ADDR is KAME local 190 */ 191#ifdef KERNEL /*XXX nonstandard*/ 192#if BYTE_ORDER == BIG_ENDIAN 193#define IPV6_ADDR_INT32_ONE 1 194#define IPV6_ADDR_INT32_TWO 2 195#define IPV6_ADDR_INT32_MNL 0xff010000 196#define IPV6_ADDR_INT32_MLL 0xff020000 197#define IPV6_ADDR_INT32_SMP 0x0000ffff 198#define IPV6_ADDR_INT16_ULL 0xfe80 199#define IPV6_ADDR_INT16_USL 0xfec0 200#define IPV6_ADDR_INT16_MLL 0xff02 201#elif BYTE_ORDER == LITTLE_ENDIAN 202#define IPV6_ADDR_INT32_ONE 0x01000000 203#define IPV6_ADDR_INT32_TWO 0x02000000 204#define IPV6_ADDR_INT32_MNL 0x000001ff 205#define IPV6_ADDR_INT32_MLL 0x000002ff 206#define IPV6_ADDR_INT32_SMP 0xffff0000 207#define IPV6_ADDR_INT16_ULL 0x80fe 208#define IPV6_ADDR_INT16_USL 0xc0fe 209#define IPV6_ADDR_INT16_MLL 0x02ff 210#endif 211#endif 212 213/* 214 * Definition of some useful macros to handle IP6 addresses 215 */ 216#define IN6ADDR_ANY_INIT \ 217 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 219#define IN6ADDR_LOOPBACK_INIT \ 220 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 222#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 223#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 224 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 225 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 226#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 227 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 228 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 229#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 230 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 231 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 232#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 233 234extern const struct in6_addr in6addr_any; 235extern const struct in6_addr in6addr_loopback; 236#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 237extern const struct in6_addr in6addr_nodelocal_allnodes; 238extern const struct in6_addr in6addr_linklocal_allnodes; 239extern const struct in6_addr in6addr_linklocal_allrouters; 240#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 241 242/* 243 * Equality 244 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 245 * does not supply memcmp(). For userland memcmp() is preferred as it is 246 * in ANSI standard. 247 */ 248#ifdef KERNEL 249#define IN6_ARE_ADDR_EQUAL(a, b) \ 250 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 251#else 252#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 253#define IN6_ARE_ADDR_EQUAL(a, b) \ 254 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 255#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 256#endif 257 258#ifdef KERNEL /* non standard */ 259/* see if two addresses are equal in a scope-conscious manner. */ 260#define SA6_ARE_ADDR_EQUAL(a, b) \ 261 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 262 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 263 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 264#endif 265 266/* 267 * Unspecified 268 */ 269#define IN6_IS_ADDR_UNSPECIFIED(a) \ 270 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 271 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 272 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 273 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 274 275/* 276 * Loopback 277 */ 278#define IN6_IS_ADDR_LOOPBACK(a) \ 279 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 280 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 281 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 282 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 283 284/* 285 * IPv4 compatible 286 */ 287#define IN6_IS_ADDR_V4COMPAT(a) \ 288 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 289 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 290 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 291 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 292 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 293 294/* 295 * Mapped 296 */ 297#define IN6_IS_ADDR_V4MAPPED(a) \ 298 ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 299 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 300 (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 301 302/* 303 * KAME Scope Values 304 */ 305 306#ifdef KERNEL /*XXX nonstandard*/ 307#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 308#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 309#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 310#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 311#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 312#else 313#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 314#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 315#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 316#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 317#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 318#endif 319 320/* 321 * Unicast Scope 322 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 323 */ 324#define IN6_IS_ADDR_LINKLOCAL(a) \ 325 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 326#define IN6_IS_ADDR_SITELOCAL(a) \ 327 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 328 329/* 330 * Multicast 331 */ 332#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 333 334#ifdef KERNEL /*XXX nonstandard*/ 335#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 336#else 337#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 338#endif 339 340/* 341 * Multicast Scope 342 */ 343#ifdef KERNEL /*refers nonstandard items */ 344#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 347#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 348 (IN6_IS_ADDR_MULTICAST(a) && \ 349 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 350#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 351 (IN6_IS_ADDR_MULTICAST(a) && \ 352 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 353#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 354 (IN6_IS_ADDR_MULTICAST(a) && \ 355 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 356#define IN6_IS_ADDR_MC_GLOBAL(a) \ 357 (IN6_IS_ADDR_MULTICAST(a) && \ 358 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 359#else 360#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 361 (IN6_IS_ADDR_MULTICAST(a) && \ 362 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 363#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 364 (IN6_IS_ADDR_MULTICAST(a) && \ 365 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 366#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 367 (IN6_IS_ADDR_MULTICAST(a) && \ 368 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 369#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 370 (IN6_IS_ADDR_MULTICAST(a) && \ 371 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 372#define IN6_IS_ADDR_MC_GLOBAL(a) \ 373 (IN6_IS_ADDR_MULTICAST(a) && \ 374 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 375#endif 376 377#ifdef KERNEL /*nonstandard*/ 378/* 379 * KAME Scope 380 */ 381#define IN6_IS_SCOPE_LINKLOCAL(a) \ 382 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 383 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 384 385#define IFA6_IS_DEPRECATED(a) \ 386 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 387 (a)->ia6_lifetime.ia6t_preferred < timenow.tv_sec) 388#define IFA6_IS_INVALID(a) \ 389 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 390 (a)->ia6_lifetime.ia6t_expire < timenow.tv_sec) 391#endif /* KERNEL */ 392 393/* 394 * IP6 route structure 395 */ 396#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 397#ifdef PRIVATE 398struct route_in6 { 399 struct rtentry *ro_rt; 400 struct sockaddr_in6 ro_dst; 401}; 402#endif /* PRIVATE */ 403#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 404 405/* 406 * Options for use with [gs]etsockopt at the IPV6 level. 407 * First word of comment is data type; bool is stored in int. 408 */ 409/* no hdrincl */ 410#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 411#if 0 /* the followings are relic in IPv4 and hence are disabled */ 412#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 413#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 414#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 415#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 416#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 417#endif /* 0 */ 418#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 419#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 420#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 421#define IPV6_MULTICAST_IF 9 /* __uint8_t; set/get IP6 multicast i/f */ 422#define IPV6_MULTICAST_HOPS 10 /* __uint8_t; set/get IP6 multicast hops */ 423#define IPV6_MULTICAST_LOOP 11 /* __uint8_t; set/get IP6 mcast loopback */ 424#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 425#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 426 427#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 428#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 429#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 430/* RFC2292 options */ 431#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 432#define IPV6_HOPLIMIT 20 /* bool; hop limit */ 433#define IPV6_NEXTHOP 21 /* bool; next hop addr */ 434#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 435#define IPV6_DSTOPTS 23 /* bool; destination option */ 436#define IPV6_RTHDR 24 /* bool; routing header */ 437#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 438 439#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 440#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 441#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 442#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 443#ifndef KERNEL 444#define IPV6_BINDV6ONLY IPV6_V6ONLY 445#endif /* KERNEL */ 446 447 448#if 1 /*IPSEC*/ 449#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 450#endif /* 1 */ 451#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 452 453#if 1 /*IPV6FIREWALL*/ 454#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 455#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 456#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 457#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 458#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 459#endif /* 1 */ 460 461/* to define items, should talk with KAME guys first, for *BSD compatibility */ 462 463#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 464#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 465#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 466 467/* 468 * Defaults and limits for options 469 */ 470#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 471#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 472 473/* 474 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 475 */ 476struct ipv6_mreq { 477 struct in6_addr ipv6mr_multiaddr; 478 unsigned int ipv6mr_interface; 479}; 480 481/* 482 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 483 */ 484struct in6_pktinfo { 485 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 486 unsigned int ipi6_ifindex; /* send/recv interface index */ 487}; 488 489/* 490 * Argument for IPV6_PORTRANGE: 491 * - which range to search when port is unspecified at bind() or connect() 492 */ 493#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 494#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 495#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 496 497/* 498 * Definitions for inet6 sysctl operations. 499 * 500 * Third level is protocol number. 501 * Fourth level is desired variable within that protocol. 502 */ 503#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 504 505/* 506 * Names for IP sysctl objects 507 */ 508#define IPV6CTL_FORWARDING 1 /* act as router */ 509#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 510#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 511#ifdef notyet 512#define IPV6CTL_DEFMTU 4 /* default MTU */ 513#endif 514#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 515#define IPV6CTL_STATS 6 /* stats */ 516#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 517#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 518#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 519#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 520#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 521#define IPV6CTL_ACCEPT_RTADV 12 522#define IPV6CTL_KEEPFAITH 13 523#define IPV6CTL_LOG_INTERVAL 14 524#define IPV6CTL_HDRNESTLIMIT 15 525#define IPV6CTL_DAD_COUNT 16 526#define IPV6CTL_AUTO_FLOWLABEL 17 527#define IPV6CTL_DEFMCASTHLIM 18 528#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 529#define IPV6CTL_KAME_VERSION 20 530#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 531#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 532#if 0 /*obsolete*/ 533#define IPV6CTL_MAPPED_ADDR 23 534#endif 535#define IPV6CTL_V6ONLY 24 536#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 537#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 538#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 539 540#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 541#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 542#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 543#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 544#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 545 546#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 547 548#define IPV6CTL_NEIGHBORGCTHRESH 46 549#define IPV6CTL_MAXIFPREFIXES 47 550#define IPV6CTL_MAXIFDEFROUTERS 48 551#define IPV6CTL_MAXDYNROUTES 49 552 553/* New entries should be added here from current IPV6CTL_MAXID value. */ 554/* to define items, should talk with KAME guys first, for *BSD compatibility */ 555#define IPV6CTL_MAXID 50 556 557#ifdef KERNEL_PRIVATE 558#define CTL_IPV6PROTO_NAMES { \ 559 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 560 { 0, 0 }, \ 561 { "tcp6", CTLTYPE_NODE }, \ 562 { 0, 0 }, \ 563 { 0, 0 }, \ 564 { 0, 0 }, \ 565 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 566 { 0, 0 }, \ 567 { 0, 0 }, \ 568 { "udp6", CTLTYPE_NODE }, \ 569 { 0, 0 }, \ 570 { 0, 0 }, \ 571 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 572 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 573 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 574 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 575 { 0, 0 }, \ 576 { "ip6", CTLTYPE_NODE }, \ 577 { 0, 0 }, \ 578 { 0, 0 }, \ 579 { 0, 0 }, \ 580 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 581 { 0, 0 }, \ 582 { "ipsec6", CTLTYPE_NODE }, \ 583 { 0, 0 }, \ 584 { 0, 0 }, \ 585 { 0, 0 }, \ 586 { 0, 0 }, \ 587 { 0, 0 }, \ 588 { 0, 0 }, \ 589 { "icmp6", CTLTYPE_NODE }, \ 590 { 0, 0 }, \ 591 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 592 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 593 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 594 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 595 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 596 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 597 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 598 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 599 { 0, 0 }, \ 600 { 0, 0 }, \ 601 { 0, 0 }, \ 602 { "pim6", CTLTYPE_NODE }, \ 603} 604/* 605 * Redefinition of mbuf flags 606 */ 607#define M_AUTHIPHDR M_PROTO2 608#define M_DECRYPTED M_PROTO3 609#define M_LOOP M_PROTO4 610#define M_AUTHIPDGM M_PROTO5 611 612struct cmsghdr; 613struct mbuf; 614struct ifnet; 615struct in6_aliasreq; 616 617#define in6_cksum(m, n, o, l) inet6_cksum(m, n, o, l) 618 619extern u_int16_t inet6_cksum(struct mbuf *m, unsigned int proto, 620 unsigned int offset, unsigned int transport_len); 621 622extern int in6_localaddr(struct in6_addr *); 623extern int in6_addrscope(struct in6_addr *); 624extern struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *); 625extern struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 626extern void in6_if_up(struct ifnet *, struct in6_aliasreq *); 627struct sockaddr; 628 629extern void in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6); 630extern void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 631 struct sockaddr_in6 *sin6); 632extern void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 633extern void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam); 634 635#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 636#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 637#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 638 639extern int in6addr_local(struct in6_addr *); 640#endif /* KERNEL_PRIVATE */ 641 642#ifndef KERNEL 643__BEGIN_DECLS 644struct cmsghdr; 645 646extern int inet6_option_space(int); 647extern int inet6_option_init(void *, struct cmsghdr **, int); 648extern int inet6_option_append(struct cmsghdr *, const __uint8_t *, 649 int, int); 650extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 651extern int inet6_option_next(const struct cmsghdr *, __uint8_t **); 652extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int); 653 654extern size_t inet6_rthdr_space(int, int); 655extern struct cmsghdr *inet6_rthdr_init(void *, int); 656extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 657 unsigned int); 658extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 659#if 0 /* not implemented yet */ 660extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 661#endif 662extern int inet6_rthdr_segments(const struct cmsghdr *); 663extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 664extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 665 666extern int inet6_opt_init(void *, size_t); 667extern int inet6_opt_append(void *, size_t, int, __uint8_t, 668 size_t, __uint8_t, void **); 669extern int inet6_opt_finish(void *, size_t, int); 670extern int inet6_opt_set_val(void *, size_t, void *, int); 671 672extern int inet6_opt_next(void *, size_t, int, __uint8_t *, 673 size_t *, void **); 674extern int inet6_opt_find(void *, size_t, int, __uint8_t, 675 size_t *, void **); 676extern int inet6_opt_get_val(void *, size_t, void *, int); 677extern size_t inet6_rth_space(int, int); 678extern void *inet6_rth_init(void *, int, int, int); 679extern int inet6_rth_add(void *, const struct in6_addr *); 680extern int inet6_rth_reverse(const void *, void *); 681extern int inet6_rth_segments(const void *); 682extern struct in6_addr *inet6_rth_getaddr(const void *, int); 683__END_DECLS 684#endif /* !KERNEL */ 685#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 686#endif /* !_NETINET6_IN6_H_ */ 687