in6.h revision 171167
1/* $FreeBSD: head/sys/netinet6/in6.h 171167 2007-07-03 12:13:45Z gnn $ */ 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 * 4. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)in.h 8.3 (Berkeley) 1/3/94 62 */ 63 64#ifndef __KAME_NETINET_IN_H_INCLUDED_ 65#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 66#endif 67 68#ifndef _NETINET6_IN6_H_ 69#define _NETINET6_IN6_H_ 70 71/* 72 * Identification of the network protocol stack 73 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 74 * has the table of implementation/integration differences. 75 */ 76#define __KAME__ 77#define __KAME_VERSION "FreeBSD" 78 79/* 80 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 81 * by the the net.inet.ip.portrange sysctl tree. The following defines exist 82 * for compatibility with userland applications that need them. 83 */ 84#if __BSD_VISIBLE 85#define IPV6PORT_RESERVED 1024 86#define IPV6PORT_ANONMIN 49152 87#define IPV6PORT_ANONMAX 65535 88#define IPV6PORT_RESERVEDMIN 600 89#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 90#endif 91 92/* 93 * IPv6 address 94 */ 95struct in6_addr { 96 union { 97 uint8_t __u6_addr8[16]; 98 uint16_t __u6_addr16[8]; 99 uint32_t __u6_addr32[4]; 100 } __u6_addr; /* 128-bit IP6 address */ 101}; 102 103#define s6_addr __u6_addr.__u6_addr8 104#ifdef _KERNEL /* XXX nonstandard */ 105#define s6_addr8 __u6_addr.__u6_addr8 106#define s6_addr16 __u6_addr.__u6_addr16 107#define s6_addr32 __u6_addr.__u6_addr32 108#endif 109 110#define INET6_ADDRSTRLEN 46 111 112/* 113 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 114 */ 115 116/* 117 * Socket address for IPv6 118 */ 119#if __BSD_VISIBLE 120#define SIN6_LEN 121#endif 122 123struct sockaddr_in6 { 124 uint8_t sin6_len; /* length of this struct */ 125 sa_family_t sin6_family; /* AF_INET6 */ 126 in_port_t sin6_port; /* Transport layer port # */ 127 uint32_t sin6_flowinfo; /* IP6 flow information */ 128 struct in6_addr sin6_addr; /* IP6 address */ 129 uint32_t sin6_scope_id; /* scope zone index */ 130}; 131 132/* 133 * Local definition for masks 134 */ 135#ifdef _KERNEL /* XXX nonstandard */ 136#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 137#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 138 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 139#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 140 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 141#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 142 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 143#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 144 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 145#endif 146 147#ifdef _KERNEL 148extern const struct sockaddr_in6 sa6_any; 149 150extern const struct in6_addr in6mask0; 151extern const struct in6_addr in6mask32; 152extern const struct in6_addr in6mask64; 153extern const struct in6_addr in6mask96; 154extern const struct in6_addr in6mask128; 155#endif /* _KERNEL */ 156 157/* 158 * Macros started with IPV6_ADDR is KAME local 159 */ 160#ifdef _KERNEL /* XXX nonstandard */ 161#if _BYTE_ORDER == _BIG_ENDIAN 162#define IPV6_ADDR_INT32_ONE 1 163#define IPV6_ADDR_INT32_TWO 2 164#define IPV6_ADDR_INT32_MNL 0xff010000 165#define IPV6_ADDR_INT32_MLL 0xff020000 166#define IPV6_ADDR_INT32_SMP 0x0000ffff 167#define IPV6_ADDR_INT16_ULL 0xfe80 168#define IPV6_ADDR_INT16_USL 0xfec0 169#define IPV6_ADDR_INT16_MLL 0xff02 170#elif _BYTE_ORDER == _LITTLE_ENDIAN 171#define IPV6_ADDR_INT32_ONE 0x01000000 172#define IPV6_ADDR_INT32_TWO 0x02000000 173#define IPV6_ADDR_INT32_MNL 0x000001ff 174#define IPV6_ADDR_INT32_MLL 0x000002ff 175#define IPV6_ADDR_INT32_SMP 0xffff0000 176#define IPV6_ADDR_INT16_ULL 0x80fe 177#define IPV6_ADDR_INT16_USL 0xc0fe 178#define IPV6_ADDR_INT16_MLL 0x02ff 179#endif 180#endif 181 182/* 183 * Definition of some useful macros to handle IP6 addresses 184 */ 185#if __BSD_VISIBLE 186#define IN6ADDR_ANY_INIT \ 187 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 188 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 189#define IN6ADDR_LOOPBACK_INIT \ 190 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 191 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 192#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 193 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 195#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 196 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 197 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 198#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 199 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 201#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 202 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 204#endif 205 206extern const struct in6_addr in6addr_any; 207extern const struct in6_addr in6addr_loopback; 208#if __BSD_VISIBLE 209extern const struct in6_addr in6addr_nodelocal_allnodes; 210extern const struct in6_addr in6addr_linklocal_allnodes; 211extern const struct in6_addr in6addr_linklocal_allrouters; 212#endif 213 214/* 215 * Equality 216 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 217 * does not supply memcmp(). For userland memcmp() is preferred as it is 218 * in ANSI standard. 219 */ 220#ifdef _KERNEL 221#define IN6_ARE_ADDR_EQUAL(a, b) \ 222 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 223#else 224#if __BSD_VISIBLE 225#define IN6_ARE_ADDR_EQUAL(a, b) \ 226 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 227#endif 228#endif 229 230/* 231 * Unspecified 232 */ 233#define IN6_IS_ADDR_UNSPECIFIED(a) \ 234 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 235 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 236 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 237 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 238 239/* 240 * Loopback 241 */ 242#define IN6_IS_ADDR_LOOPBACK(a) \ 243 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 244 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 245 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 246 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 247 248/* 249 * IPv4 compatible 250 */ 251#define IN6_IS_ADDR_V4COMPAT(a) \ 252 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 253 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 254 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 255 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 256 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 257 258/* 259 * Mapped 260 */ 261#define IN6_IS_ADDR_V4MAPPED(a) \ 262 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 263 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 264 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 265 266/* 267 * KAME Scope Values 268 */ 269 270#ifdef _KERNEL /* XXX nonstandard */ 271#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 272#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 273#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 274#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 275#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 276#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 277#else 278#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 279#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 280#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 281#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 282#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 283#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 284#endif 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#ifdef _KERNEL /* XXX nonstandard */ 301#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 302#else 303#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 304#endif 305 306/* 307 * Multicast Scope 308 */ 309#ifdef _KERNEL /* refers nonstandard items */ 310#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 311 (IN6_IS_ADDR_MULTICAST(a) && \ 312 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 313#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 314 (IN6_IS_ADDR_MULTICAST(a) && \ 315 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 316#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 317 (IN6_IS_ADDR_MULTICAST(a) && \ 318 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 319#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 320 (IN6_IS_ADDR_MULTICAST(a) && \ 321 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 322#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 323 (IN6_IS_ADDR_MULTICAST(a) && \ 324 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 325#define IN6_IS_ADDR_MC_GLOBAL(a) \ 326 (IN6_IS_ADDR_MULTICAST(a) && \ 327 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 328#else 329#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 330 (IN6_IS_ADDR_MULTICAST(a) && \ 331 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 332#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 333 (IN6_IS_ADDR_MULTICAST(a) && \ 334 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 335#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 336 (IN6_IS_ADDR_MULTICAST(a) && \ 337 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 338#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 341#define IN6_IS_ADDR_MC_GLOBAL(a) \ 342 (IN6_IS_ADDR_MULTICAST(a) && \ 343 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 344#endif 345 346#ifdef _KERNEL /* nonstandard */ 347/* 348 * KAME Scope 349 */ 350#define IN6_IS_SCOPE_LINKLOCAL(a) \ 351 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 352 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 353 354#define IFA6_IS_DEPRECATED(a) \ 355 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 356 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 357 (a)->ia6_lifetime.ia6t_pltime) 358#define IFA6_IS_INVALID(a) \ 359 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 360 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 361 (a)->ia6_lifetime.ia6t_vltime) 362#endif /* _KERNEL */ 363 364/* 365 * IP6 route structure 366 */ 367#if __BSD_VISIBLE 368struct route_in6 { 369 struct rtentry *ro_rt; 370 struct sockaddr_in6 ro_dst; 371}; 372#endif 373 374/* 375 * Options for use with [gs]etsockopt at the IPV6 level. 376 * First word of comment is data type; bool is stored in int. 377 */ 378/* no hdrincl */ 379#if 0 /* the followings are relic in IPv4 and hence are disabled */ 380#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 381#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 382#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 383#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 384#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 385#endif 386#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 387#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 388#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 389#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 390#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 391#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 392#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 393#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 394#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 395/* RFC2292 options */ 396#ifdef _KERNEL 397#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 398#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 399#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 400#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 401#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 402#define IPV6_2292RTHDR 24 /* bool; routing header */ 403#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 404#endif 405 406#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 407#define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 408#ifndef _KERNEL 409#define IPV6_BINDV6ONLY IPV6_V6ONLY 410#endif 411 412#ifdef IPSEC 413#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 414#endif /* IPSEC */ 415 416#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 417 418#if 1 /* IPV6FIREWALL */ 419#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 420#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 421#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 422#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 423#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 424#endif 425 426/* new socket options introduced in RFC3542 */ 427#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 428 429#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 430#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 431#define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 432#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 433#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 434#ifdef _KERNEL 435#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 436#endif 437 438#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 439#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 440 441#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 442 4 bytes int; MTU notification (cmsg) */ 443#if 0 /*obsoleted during 2292bis -> 3542*/ 444#define IPV6_REACHCONF 45 /* no data; ND reachability confirm 445 (cmsg only/not in of RFC3542) */ 446#endif 447 448/* more new socket options introduced in RFC3542 */ 449#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 450#define IPV6_HOPLIMIT 47 /* int; send hop limit */ 451#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 452#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 453#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 454#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 455#if 0 456#define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 457 /* obsoleted by RFC3542 */ 458#endif 459 460#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 461 462#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 463 464#define IPV6_TCLASS 61 /* int; send traffic class value */ 465#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 466 467#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 468 * the source address. 469 */ 470 471/* 472 * The following option is private; do not use it from user applications. 473 * It is deliberately defined to the same value as IP_MSFILTER. 474 */ 475#define IPV6_MSFILTER 74 /* struct __msfilterreq; 476 * set/get multicast source filter list. 477 */ 478 479/* to define items, should talk with KAME guys first, for *BSD compatibility */ 480 481#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 482#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 483#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 484 485/* 486 * Defaults and limits for options 487 */ 488#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 489#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 490 491/* 492 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 493 */ 494struct ipv6_mreq { 495 struct in6_addr ipv6mr_multiaddr; 496 unsigned int ipv6mr_interface; 497}; 498 499#ifdef notyet 500/* 501 * Argument structure for IPV6_ADD_SOURCE_MEMBERSHIP, 502 * IPV6_DROP_SOURCE_MEMBERSHIP, IPV6_BLOCK_SOURCE, and IPV6_UNBLOCK_SOURCE. 503 */ 504struct ipv6_mreq_source { 505 struct in6_addr ipv6mr_multiaddr; 506 struct in6_addr ipv6mr_sourceaddr; 507 uint32_t ipv6mr_interface; 508}; 509#endif 510 511/* 512 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 513 */ 514struct in6_pktinfo { 515 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 516 unsigned int ipi6_ifindex; /* send/recv interface index */ 517}; 518 519/* 520 * Control structure for IPV6_RECVPATHMTU socket option. 521 */ 522struct ip6_mtuinfo { 523 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 524 uint32_t ip6m_mtu; 525}; 526 527/* 528 * Argument for IPV6_PORTRANGE: 529 * - which range to search when port is unspecified at bind() or connect() 530 */ 531#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 532#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 533#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 534 535#if __BSD_VISIBLE 536/* 537 * Definitions for inet6 sysctl operations. 538 * 539 * Third level is protocol number. 540 * Fourth level is desired variable within that protocol. 541 */ 542#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 543 544/* 545 * Names for IP sysctl objects 546 */ 547#define IPV6CTL_FORWARDING 1 /* act as router */ 548#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 549#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 550#ifdef notyet 551#define IPV6CTL_DEFMTU 4 /* default MTU */ 552#endif 553#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 554#define IPV6CTL_STATS 6 /* stats */ 555#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 556#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 557#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 558#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 559#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 560#define IPV6CTL_ACCEPT_RTADV 12 561#define IPV6CTL_KEEPFAITH 13 562#define IPV6CTL_LOG_INTERVAL 14 563#define IPV6CTL_HDRNESTLIMIT 15 564#define IPV6CTL_DAD_COUNT 16 565#define IPV6CTL_AUTO_FLOWLABEL 17 566#define IPV6CTL_DEFMCASTHLIM 18 567#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 568#define IPV6CTL_KAME_VERSION 20 569#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 570#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 571#if 0 /* obsolete */ 572#define IPV6CTL_MAPPED_ADDR 23 573#endif 574#define IPV6CTL_V6ONLY 24 575#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 576#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 577#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 578 579#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 580#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 581#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 582#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 583#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 584#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 585#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 586#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 587 588#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 589#if 0 590#define IPV6CTL_IFQ 42 /* ip6intrq node */ 591#define IPV6CTL_ISATAPRTR 43 /* isatap router */ 592#endif 593#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 594 595/* New entries should be added here from current IPV6CTL_MAXID value. */ 596/* to define items, should talk with KAME guys first, for *BSD compatibility */ 597#define IPV6CTL_STEALTH 45 598#define IPV6CTL_MAXID 46 599#endif /* __BSD_VISIBLE */ 600 601/* 602 * Redefinition of mbuf flags 603 */ 604#define M_AUTHIPHDR M_PROTO2 605#define M_DECRYPTED M_PROTO3 606#define M_LOOP M_PROTO4 607#define M_AUTHIPDGM M_PROTO5 608 609#ifdef _KERNEL 610struct cmsghdr; 611 612int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 613int in6_localaddr __P((struct in6_addr *)); 614int in6_addrscope __P((struct in6_addr *)); 615struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 616extern void in6_if_up __P((struct ifnet *)); 617struct sockaddr; 618extern u_char ip6_protox[]; 619 620void in6_sin6_2_sin __P((struct sockaddr_in *sin, 621 struct sockaddr_in6 *sin6)); 622void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 623 struct sockaddr_in6 *sin6)); 624void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 625void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 626extern void addrsel_policy_init __P((void)); 627 628#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 629#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 630#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 631 632extern int (*faithprefix_p)(struct in6_addr *); 633#endif /* _KERNEL */ 634 635#ifndef _SIZE_T_DECLARED 636typedef __size_t size_t; 637#define _SIZE_T_DECLARED 638#endif 639 640#ifndef _SOCKLEN_T_DECLARED 641typedef __socklen_t socklen_t; 642#define _SOCKLEN_T_DECLARED 643#endif 644 645#if __BSD_VISIBLE 646 647__BEGIN_DECLS 648struct cmsghdr; 649 650extern int inet6_option_space __P((int)); 651extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 652extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 653 int, int)); 654extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 655extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 656extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 657 658extern size_t inet6_rthdr_space __P((int, int)); 659extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 660extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 661 unsigned int)); 662extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 663#if 0 /* not implemented yet */ 664extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 665#endif 666extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 667extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 668extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 669 670extern int inet6_opt_init __P((void *, socklen_t)); 671extern int inet6_opt_append __P((void *, socklen_t, int, uint8_t, socklen_t, 672 uint8_t, void **)); 673extern int inet6_opt_finish __P((void *, socklen_t, int)); 674extern int inet6_opt_set_val __P((void *, int, void *, socklen_t)); 675 676extern int inet6_opt_next __P((void *, socklen_t, int, uint8_t *, socklen_t *, 677 void **)); 678extern int inet6_opt_find __P((void *, socklen_t, int, uint8_t, socklen_t *, 679 void **)); 680extern int inet6_opt_get_val __P((void *, int, void *, socklen_t)); 681extern socklen_t inet6_rth_space __P((int, int)); 682extern void *inet6_rth_init __P((void *, socklen_t, int, int)); 683extern int inet6_rth_add __P((void *, const struct in6_addr *)); 684extern int inet6_rth_reverse __P((const void *, void *)); 685extern int inet6_rth_segments __P((const void *)); 686extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 687__END_DECLS 688 689#endif /* __BSD_VISIBLE */ 690 691#endif /* !_NETINET6_IN6_H_ */ 692