in6.h revision 148385
1/* $FreeBSD: head/sys/netinet6/in6.h 148385 2005-07-25 12:31:43Z ume $ */ 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 "20010528/FreeBSD" 78 79/* 80 * Local port number conventions: 81 * 82 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 83 * unless a kernel is compiled with IPNOPRIVPORTS defined. 84 * 85 * When a user does a bind(2) or connect(2) with a port number of zero, 86 * a non-conflicting local port address is chosen. 87 * 88 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 89 * that is settable by sysctl(3); net.inet.ip.anonportmin and 90 * net.inet.ip.anonportmax respectively. 91 * 92 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 93 * default assignment range. 94 * 95 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 96 * 97 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 98 * and exists only for FreeBSD compatibility purposes. 99 * 100 * The value IP_PORTRANGE_LOW changes the range to the "low" are 101 * that is (by convention) restricted to privileged processes. 102 * This convention is based on "vouchsafe" principles only. 103 * It is only secure if you trust the remote host to restrict these ports. 104 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 105 */ 106#if __BSD_VISIBLE 107#define IPV6PORT_RESERVED 1024 108#define IPV6PORT_ANONMIN 49152 109#define IPV6PORT_ANONMAX 65535 110#define IPV6PORT_RESERVEDMIN 600 111#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 112#endif 113 114/* 115 * IPv6 address 116 */ 117struct in6_addr { 118 union { 119 uint8_t __u6_addr8[16]; 120 uint16_t __u6_addr16[8]; 121 uint32_t __u6_addr32[4]; 122 } __u6_addr; /* 128-bit IP6 address */ 123}; 124 125#define s6_addr __u6_addr.__u6_addr8 126#ifdef _KERNEL /* XXX nonstandard */ 127#define s6_addr8 __u6_addr.__u6_addr8 128#define s6_addr16 __u6_addr.__u6_addr16 129#define s6_addr32 __u6_addr.__u6_addr32 130#endif 131 132#define INET6_ADDRSTRLEN 46 133 134/* 135 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 136 */ 137 138/* 139 * Socket address for IPv6 140 */ 141#if __BSD_VISIBLE 142#define SIN6_LEN 143#endif 144 145struct sockaddr_in6 { 146 uint8_t sin6_len; /* length of this struct */ 147 sa_family_t sin6_family; /* AF_INET6 */ 148 in_port_t sin6_port; /* Transport layer port # */ 149 uint32_t sin6_flowinfo; /* IP6 flow information */ 150 struct in6_addr sin6_addr; /* IP6 address */ 151 uint32_t sin6_scope_id; /* scope zone index */ 152}; 153 154/* 155 * Local definition for masks 156 */ 157#ifdef _KERNEL /* XXX nonstandard */ 158#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 159#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 160 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 161#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 163#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 164 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 165#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 167#endif 168 169#ifdef _KERNEL 170extern const struct sockaddr_in6 sa6_any; 171 172extern const struct in6_addr in6mask0; 173extern const struct in6_addr in6mask32; 174extern const struct in6_addr in6mask64; 175extern const struct in6_addr in6mask96; 176extern const struct in6_addr in6mask128; 177#endif /* _KERNEL */ 178 179/* 180 * Macros started with IPV6_ADDR is KAME local 181 */ 182#ifdef _KERNEL /* XXX nonstandard */ 183#if _BYTE_ORDER == _BIG_ENDIAN 184#define IPV6_ADDR_INT32_ONE 1 185#define IPV6_ADDR_INT32_TWO 2 186#define IPV6_ADDR_INT32_MNL 0xff010000 187#define IPV6_ADDR_INT32_MLL 0xff020000 188#define IPV6_ADDR_INT32_SMP 0x0000ffff 189#define IPV6_ADDR_INT16_ULL 0xfe80 190#define IPV6_ADDR_INT16_USL 0xfec0 191#define IPV6_ADDR_INT16_MLL 0xff02 192#elif _BYTE_ORDER == _LITTLE_ENDIAN 193#define IPV6_ADDR_INT32_ONE 0x01000000 194#define IPV6_ADDR_INT32_TWO 0x02000000 195#define IPV6_ADDR_INT32_MNL 0x000001ff 196#define IPV6_ADDR_INT32_MLL 0x000002ff 197#define IPV6_ADDR_INT32_SMP 0xffff0000 198#define IPV6_ADDR_INT16_ULL 0x80fe 199#define IPV6_ADDR_INT16_USL 0xc0fe 200#define IPV6_ADDR_INT16_MLL 0x02ff 201#endif 202#endif 203 204/* 205 * Definition of some useful macros to handle IP6 addresses 206 */ 207#if __BSD_VISIBLE 208#define IN6ADDR_ANY_INIT \ 209 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 211#define IN6ADDR_LOOPBACK_INIT \ 212 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 213 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 214#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 215 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 216 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 217#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 218 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 219 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 220#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 221 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 222 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 223#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 224 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 225 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 226#endif 227 228extern const struct in6_addr in6addr_any; 229extern const struct in6_addr in6addr_loopback; 230#if __BSD_VISIBLE 231extern const struct in6_addr in6addr_nodelocal_allnodes; 232extern const struct in6_addr in6addr_linklocal_allnodes; 233extern const struct in6_addr in6addr_linklocal_allrouters; 234#endif 235 236/* 237 * Equality 238 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 239 * does not supply memcmp(). For userland memcmp() is preferred as it is 240 * in ANSI standard. 241 */ 242#ifdef _KERNEL 243#define IN6_ARE_ADDR_EQUAL(a, b) \ 244 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 245#else 246#if __BSD_VISIBLE 247#define IN6_ARE_ADDR_EQUAL(a, b) \ 248 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 249#endif 250#endif 251 252#ifdef _KERNEL /* non standard */ 253/* see if two addresses are equal in a scope-conscious manner. */ 254#define SA6_ARE_ADDR_EQUAL(a, b) \ 255 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 256 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 257 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 258#endif 259 260/* 261 * Unspecified 262 */ 263#define IN6_IS_ADDR_UNSPECIFIED(a) \ 264 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 265 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 266 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 267 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 268 269/* 270 * Loopback 271 */ 272#define IN6_IS_ADDR_LOOPBACK(a) \ 273 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 274 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 275 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 276 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 277 278/* 279 * IPv4 compatible 280 */ 281#define IN6_IS_ADDR_V4COMPAT(a) \ 282 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 283 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 284 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 285 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 286 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 287 288/* 289 * Mapped 290 */ 291#define IN6_IS_ADDR_V4MAPPED(a) \ 292 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 293 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 294 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 295 296/* 297 * KAME Scope Values 298 */ 299 300#ifdef _KERNEL /* XXX nonstandard */ 301#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 302#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 303#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 304#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 305#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 306#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 307#else 308#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 309#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 310#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 311#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 312#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 313#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 314#endif 315 316/* 317 * Unicast Scope 318 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 319 */ 320#define IN6_IS_ADDR_LINKLOCAL(a) \ 321 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 322#define IN6_IS_ADDR_SITELOCAL(a) \ 323 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 324 325/* 326 * Multicast 327 */ 328#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 329 330#ifdef _KERNEL /* XXX nonstandard */ 331#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 332#else 333#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 334#endif 335 336/* 337 * Multicast Scope 338 */ 339#ifdef _KERNEL /* refers nonstandard items */ 340#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 343#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 346#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 349#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 350 (IN6_IS_ADDR_MULTICAST(a) && \ 351 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 352#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 353 (IN6_IS_ADDR_MULTICAST(a) && \ 354 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 355#define IN6_IS_ADDR_MC_GLOBAL(a) \ 356 (IN6_IS_ADDR_MULTICAST(a) && \ 357 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 358#else 359#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 360 (IN6_IS_ADDR_MULTICAST(a) && \ 361 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 362#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 363 (IN6_IS_ADDR_MULTICAST(a) && \ 364 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 365#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 366 (IN6_IS_ADDR_MULTICAST(a) && \ 367 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 368#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 369 (IN6_IS_ADDR_MULTICAST(a) && \ 370 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 371#define IN6_IS_ADDR_MC_GLOBAL(a) \ 372 (IN6_IS_ADDR_MULTICAST(a) && \ 373 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 374#endif 375 376#ifdef _KERNEL /* nonstandard */ 377/* 378 * KAME Scope 379 */ 380#define IN6_IS_SCOPE_LINKLOCAL(a) \ 381 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 382 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 383 384#define IFA6_IS_DEPRECATED(a) \ 385 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 386 (a)->ia6_lifetime.ia6t_preferred < time_second) 387#define IFA6_IS_INVALID(a) \ 388 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 389 (a)->ia6_lifetime.ia6t_expire < time_second) 390#endif /* _KERNEL */ 391 392/* 393 * IP6 route structure 394 */ 395#if __BSD_VISIBLE 396struct route_in6 { 397 struct rtentry *ro_rt; 398 struct sockaddr_in6 ro_dst; 399}; 400#endif 401 402/* 403 * Options for use with [gs]etsockopt at the IPV6 level. 404 * First word of comment is data type; bool is stored in int. 405 */ 406/* no hdrincl */ 407#if 0 /* the followings are relic in IPv4 and hence are disabled */ 408#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 409#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 410#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 411#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 412#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 413#endif 414#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 415#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 416#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 417#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 418#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 419#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 420#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 421#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 422#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 423/* RFC2292 options */ 424#ifdef _KERNEL 425#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 426#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 427#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 428#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 429#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 430#define IPV6_2292RTHDR 24 /* bool; routing header */ 431#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 432#endif 433 434#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 435#define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 436#ifndef _KERNEL 437#define IPV6_BINDV6ONLY IPV6_V6ONLY 438#endif 439 440#if 1 /* IPSEC */ 441#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 442#endif 443#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 444 445#if 1 /* IPV6FIREWALL */ 446#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 447#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 448#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 449#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 450#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 451#endif 452 453/* new socket options introduced in RFC3542 */ 454#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 455 456#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 457#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 458#define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 459#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 460#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 461#ifdef _KERNEL 462#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 463#endif 464 465#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 466#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 467 468#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 469 4 bytes int; MTU notification (cmsg) */ 470#if 0 /*obsoleted during 2292bis -> 3542*/ 471#define IPV6_REACHCONF 45 /* no data; ND reachability confirm 472 (cmsg only/not in of RFC3542) */ 473#endif 474 475/* more new socket options introduced in RFC3542 */ 476#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 477#define IPV6_HOPLIMIT 47 /* int; send hop limit */ 478#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 479#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 480#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 481#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 482#if 0 483#define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 484 /* obsoleted by RFC3542 */ 485#endif 486 487#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 488 489#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 490 491#define IPV6_TCLASS 61 /* int; send traffic class value */ 492#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 493 494#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 495 * the source address. 496 */ 497 498/* to define items, should talk with KAME guys first, for *BSD compatibility */ 499 500#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 501#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 502#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 503 504/* 505 * Defaults and limits for options 506 */ 507#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 508#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 509 510/* 511 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 512 */ 513struct ipv6_mreq { 514 struct in6_addr ipv6mr_multiaddr; 515 unsigned int ipv6mr_interface; 516}; 517 518/* 519 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 520 */ 521struct in6_pktinfo { 522 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 523 unsigned int ipi6_ifindex; /* send/recv interface index */ 524}; 525 526/* 527 * Control structure for IPV6_RECVPATHMTU socket option. 528 */ 529struct ip6_mtuinfo { 530 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 531 uint32_t ip6m_mtu; 532}; 533 534/* 535 * Argument for IPV6_PORTRANGE: 536 * - which range to search when port is unspecified at bind() or connect() 537 */ 538#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 539#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 540#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 541 542#if __BSD_VISIBLE 543/* 544 * Definitions for inet6 sysctl operations. 545 * 546 * Third level is protocol number. 547 * Fourth level is desired variable within that protocol. 548 */ 549#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 550 551/* 552 * Names for IP sysctl objects 553 */ 554#define IPV6CTL_FORWARDING 1 /* act as router */ 555#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 556#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 557#ifdef notyet 558#define IPV6CTL_DEFMTU 4 /* default MTU */ 559#endif 560#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 561#define IPV6CTL_STATS 6 /* stats */ 562#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 563#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 564#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 565#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 566#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 567#define IPV6CTL_ACCEPT_RTADV 12 568#define IPV6CTL_KEEPFAITH 13 569#define IPV6CTL_LOG_INTERVAL 14 570#define IPV6CTL_HDRNESTLIMIT 15 571#define IPV6CTL_DAD_COUNT 16 572#define IPV6CTL_AUTO_FLOWLABEL 17 573#define IPV6CTL_DEFMCASTHLIM 18 574#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 575#define IPV6CTL_KAME_VERSION 20 576#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 577#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 578#if 0 /* obsolete */ 579#define IPV6CTL_MAPPED_ADDR 23 580#endif 581#define IPV6CTL_V6ONLY 24 582#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 583#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 584#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 585 586#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 587#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 588#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 589#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 590#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 591#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 592#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 593#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 594 595#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 596 597/* New entries should be added here from current IPV6CTL_MAXID value. */ 598/* to define items, should talk with KAME guys first, for *BSD compatibility */ 599#define IPV6CTL_MAXID 42 600#endif /* __BSD_VISIBLE */ 601 602/* 603 * Redefinition of mbuf flags 604 */ 605#define M_AUTHIPHDR M_PROTO2 606#define M_DECRYPTED M_PROTO3 607#define M_LOOP M_PROTO4 608#define M_AUTHIPDGM M_PROTO5 609 610#ifdef _KERNEL 611struct cmsghdr; 612 613int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 614int in6_localaddr __P((struct in6_addr *)); 615int in6_addrscope __P((struct in6_addr *)); 616struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 617extern void in6_if_up __P((struct ifnet *)); 618struct sockaddr; 619extern u_char ip6_protox[]; 620 621void in6_sin6_2_sin __P((struct sockaddr_in *sin, 622 struct sockaddr_in6 *sin6)); 623void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 624 struct sockaddr_in6 *sin6)); 625void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 626void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 627extern void addrsel_policy_init __P((void)); 628 629#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 630#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 631#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 632 633extern int (*faithprefix_p)(struct in6_addr *); 634#endif /* _KERNEL */ 635 636#ifndef _SIZE_T_DECLARED 637typedef __size_t size_t; 638#define _SIZE_T_DECLARED 639#endif 640 641#ifndef _SOCKLEN_T_DECLARED 642typedef __socklen_t socklen_t; 643#define _SOCKLEN_T_DECLARED 644#endif 645 646#if __BSD_VISIBLE 647 648__BEGIN_DECLS 649struct cmsghdr; 650 651extern int inet6_option_space __P((int)); 652extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 653extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 654 int, int)); 655extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 656extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 657extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 658 659extern size_t inet6_rthdr_space __P((int, int)); 660extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 661extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 662 unsigned int)); 663extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 664#if 0 /* not implemented yet */ 665extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 666#endif 667extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 668extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 669extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 670 671extern int inet6_opt_init __P((void *, socklen_t)); 672extern int inet6_opt_append __P((void *, socklen_t, int, uint8_t, socklen_t, 673 uint8_t, void **)); 674extern int inet6_opt_finish __P((void *, socklen_t, int)); 675extern int inet6_opt_set_val __P((void *, int, void *, socklen_t)); 676 677extern int inet6_opt_next __P((void *, socklen_t, int, uint8_t *, socklen_t *, 678 void **)); 679extern int inet6_opt_find __P((void *, socklen_t, int, uint8_t, socklen_t *, 680 void **)); 681extern int inet6_opt_get_val __P((void *, int, void *, socklen_t)); 682extern socklen_t inet6_rth_space __P((int, int)); 683extern void *inet6_rth_init __P((void *, socklen_t, int, int)); 684extern int inet6_rth_add __P((void *, const struct in6_addr *)); 685extern int inet6_rth_reverse __P((const void *, void *)); 686extern int inet6_rth_segments __P((const void *)); 687extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 688__END_DECLS 689 690#endif /* __BSD_VISIBLE */ 691 692#endif /* !_NETINET6_IN6_H_ */ 693