in6.h revision 100503
1/* $FreeBSD: head/sys/netinet6/in6.h 100503 2002-07-22 15:13:55Z 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 * 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 75/* 76 * Identification of the network protocol stack 77 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 78 * has the table of implementation/integration differences. 79 */ 80#define __KAME__ 81#define __KAME_VERSION "20010528/FreeBSD" 82 83/* 84 * Local port number conventions: 85 * 86 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 87 * unless a kernel is compiled with IPNOPRIVPORTS defined. 88 * 89 * When a user does a bind(2) or connect(2) with a port number of zero, 90 * a non-conflicting local port address is chosen. 91 * 92 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 93 * that is settable by sysctl(3); net.inet.ip.anonportmin and 94 * net.inet.ip.anonportmax respectively. 95 * 96 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 97 * default assignment range. 98 * 99 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 100 * 101 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 102 * and exists only for FreeBSD compatibility purposes. 103 * 104 * The value IP_PORTRANGE_LOW changes the range to the "low" are 105 * that is (by convention) restricted to privileged processes. 106 * This convention is based on "vouchsafe" principles only. 107 * It is only secure if you trust the remote host to restrict these ports. 108 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 109 */ 110#if __BSD_VISIBLE 111#define IPV6PORT_RESERVED 1024 112#define IPV6PORT_ANONMIN 49152 113#define IPV6PORT_ANONMAX 65535 114#define IPV6PORT_RESERVEDMIN 600 115#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 116#endif 117 118/* 119 * IPv6 address 120 */ 121struct in6_addr { 122 union { 123 uint8_t __u6_addr8[16]; 124 uint16_t __u6_addr16[8]; 125 uint32_t __u6_addr32[4]; 126 } __u6_addr; /* 128-bit IP6 address */ 127}; 128 129#define s6_addr __u6_addr.__u6_addr8 130#ifdef _KERNEL /* XXX nonstandard */ 131#define s6_addr8 __u6_addr.__u6_addr8 132#define s6_addr16 __u6_addr.__u6_addr16 133#define s6_addr32 __u6_addr.__u6_addr32 134#endif 135 136#define INET6_ADDRSTRLEN 46 137 138/* 139 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 140 */ 141 142/* 143 * Socket address for IPv6 144 */ 145#if __BSD_VISIBLE 146#define SIN6_LEN 147#endif 148 149struct sockaddr_in6 { 150 uint8_t sin6_len; /* length of this struct */ 151 sa_family_t sin6_family; /* AF_INET6 */ 152 in_port_t sin6_port; /* Transport layer port # */ 153 uint32_t sin6_flowinfo; /* IP6 flow information */ 154 struct in6_addr sin6_addr; /* IP6 address */ 155 uint32_t sin6_scope_id; /* scope zone index */ 156}; 157 158/* 159 * Local definition for masks 160 */ 161#ifdef _KERNEL /* XXX nonstandard */ 162#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 163#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 164 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 165#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 167#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 168 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 169#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 171#endif 172 173#ifdef _KERNEL 174extern const struct sockaddr_in6 sa6_any; 175 176extern const struct in6_addr in6mask0; 177extern const struct in6_addr in6mask32; 178extern const struct in6_addr in6mask64; 179extern const struct in6_addr in6mask96; 180extern const struct in6_addr in6mask128; 181#endif /* _KERNEL */ 182 183/* 184 * Macros started with IPV6_ADDR is KAME local 185 */ 186#ifdef _KERNEL /* XXX nonstandard */ 187#if _BYTE_ORDER == _BIG_ENDIAN 188#define IPV6_ADDR_INT32_ONE 1 189#define IPV6_ADDR_INT32_TWO 2 190#define IPV6_ADDR_INT32_MNL 0xff010000 191#define IPV6_ADDR_INT32_MLL 0xff020000 192#define IPV6_ADDR_INT32_SMP 0x0000ffff 193#define IPV6_ADDR_INT16_ULL 0xfe80 194#define IPV6_ADDR_INT16_USL 0xfec0 195#define IPV6_ADDR_INT16_MLL 0xff02 196#elif _BYTE_ORDER == _LITTLE_ENDIAN 197#define IPV6_ADDR_INT32_ONE 0x01000000 198#define IPV6_ADDR_INT32_TWO 0x02000000 199#define IPV6_ADDR_INT32_MNL 0x000001ff 200#define IPV6_ADDR_INT32_MLL 0x000002ff 201#define IPV6_ADDR_INT32_SMP 0xffff0000 202#define IPV6_ADDR_INT16_ULL 0x80fe 203#define IPV6_ADDR_INT16_USL 0xc0fe 204#define IPV6_ADDR_INT16_MLL 0x02ff 205#endif 206#endif 207 208/* 209 * Definition of some useful macros to handle IP6 addresses 210 */ 211#if __BSD_VISIBLE 212#define IN6ADDR_ANY_INIT \ 213 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 215#define IN6ADDR_LOOPBACK_INIT \ 216 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 218#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 219 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 220 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 221#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 222 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 223 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 224#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 225 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 226 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 227#endif 228 229extern const struct in6_addr in6addr_any; 230extern const struct in6_addr in6addr_loopback; 231#if __BSD_VISIBLE 232extern const struct in6_addr in6addr_nodelocal_allnodes; 233extern const struct in6_addr in6addr_linklocal_allnodes; 234extern const struct in6_addr in6addr_linklocal_allrouters; 235#endif 236 237/* 238 * Equality 239 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 240 * does not supply memcmp(). For userland memcmp() is preferred as it is 241 * in ANSI standard. 242 */ 243#ifdef _KERNEL 244#define IN6_ARE_ADDR_EQUAL(a, b) \ 245 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 246#else 247#if __BSD_VISIBLE 248#define IN6_ARE_ADDR_EQUAL(a, b) \ 249 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 250#endif 251#endif 252 253#ifdef _KERNEL /* non standard */ 254/* see if two addresses are equal in a scope-conscious manner. */ 255#define SA6_ARE_ADDR_EQUAL(a, b) \ 256 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 257 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 258 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 259#endif 260 261/* 262 * Unspecified 263 */ 264#define IN6_IS_ADDR_UNSPECIFIED(a) \ 265 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 266 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 267 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 268 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 269 270/* 271 * Loopback 272 */ 273#define IN6_IS_ADDR_LOOPBACK(a) \ 274 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 275 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 276 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 277 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 278 279/* 280 * IPv4 compatible 281 */ 282#define IN6_IS_ADDR_V4COMPAT(a) \ 283 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 284 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 285 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 286 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 287 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 288 289/* 290 * Mapped 291 */ 292#define IN6_IS_ADDR_V4MAPPED(a) \ 293 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 294 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 295 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 296 297/* 298 * KAME Scope Values 299 */ 300 301#ifdef _KERNEL /* XXX nonstandard */ 302#define IPV6_ADDR_SCOPE_NODELOCAL 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_LINKLOCAL 0x02 310#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 311#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 312#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 313#endif 314 315/* 316 * Unicast Scope 317 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 318 */ 319#define IN6_IS_ADDR_LINKLOCAL(a) \ 320 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 321#define IN6_IS_ADDR_SITELOCAL(a) \ 322 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 323 324/* 325 * Multicast 326 */ 327#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 328 329#ifdef _KERNEL /* XXX nonstandard */ 330#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 331#else 332#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 333#endif 334 335/* 336 * Multicast Scope 337 */ 338#ifdef _KERNEL /* refers nonstandard items */ 339#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 342#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 345#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 348#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 349 (IN6_IS_ADDR_MULTICAST(a) && \ 350 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 351#define IN6_IS_ADDR_MC_GLOBAL(a) \ 352 (IN6_IS_ADDR_MULTICAST(a) && \ 353 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 354#else 355#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 356 (IN6_IS_ADDR_MULTICAST(a) && \ 357 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 358#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 359 (IN6_IS_ADDR_MULTICAST(a) && \ 360 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 361#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 362 (IN6_IS_ADDR_MULTICAST(a) && \ 363 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 364#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 365 (IN6_IS_ADDR_MULTICAST(a) && \ 366 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 367#define IN6_IS_ADDR_MC_GLOBAL(a) \ 368 (IN6_IS_ADDR_MULTICAST(a) && \ 369 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 370#endif 371 372#ifdef _KERNEL /* nonstandard */ 373/* 374 * KAME Scope 375 */ 376#define IN6_IS_SCOPE_LINKLOCAL(a) \ 377 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 378 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 379 380#define IFA6_IS_DEPRECATED(a) \ 381 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 382 (a)->ia6_lifetime.ia6t_preferred < time_second) 383#define IFA6_IS_INVALID(a) \ 384 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 385 (a)->ia6_lifetime.ia6t_expire < time_second) 386#endif /* _KERNEL */ 387 388/* 389 * IP6 route structure 390 */ 391#if __BSD_VISIBLE 392struct route_in6 { 393 struct rtentry *ro_rt; 394 struct sockaddr_in6 ro_dst; 395}; 396#endif 397 398/* 399 * Options for use with [gs]etsockopt at the IPV6 level. 400 * First word of comment is data type; bool is stored in int. 401 */ 402#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 403#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 404#define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 405#define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 406#define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 407#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 408#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 409 410#if __BSD_VISIBLE 411/* no hdrincl */ 412#if 0 /* the followings are relic in IPv4 and hence are disabled */ 413#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 414#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 415#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 416#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 417#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 418#endif 419#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 420#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 421#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 422/* RFC2292 options */ 423#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 424#define IPV6_HOPLIMIT 20 /* bool; hop limit */ 425#define IPV6_NEXTHOP 21 /* bool; next hop addr */ 426#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 427#define IPV6_DSTOPTS 23 /* bool; destination option */ 428#define IPV6_RTHDR 24 /* bool; routing header */ 429#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 430 431#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 432#ifndef _KERNEL 433#define IPV6_BINDV6ONLY IPV6_V6ONLY 434#endif 435 436#if 1 /* IPSEC */ 437#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 438#endif 439#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 440 441#if 1 /* IPV6FIREWALL */ 442#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 443#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 444#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 445#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 446#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 447#endif 448 449/* to define items, should talk with KAME guys first, for *BSD compatibility */ 450 451#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 452#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 453#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 454 455/* 456 * Defaults and limits for options 457 */ 458#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 459#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 460 461/* 462 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 463 */ 464struct ipv6_mreq { 465 struct in6_addr ipv6mr_multiaddr; 466 unsigned int ipv6mr_interface; 467}; 468 469/* 470 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 471 */ 472struct in6_pktinfo { 473 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 474 unsigned int ipi6_ifindex; /* send/recv interface index */ 475}; 476 477/* 478 * Argument for IPV6_PORTRANGE: 479 * - which range to search when port is unspecified at bind() or connect() 480 */ 481#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 482#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 483#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 484 485/* 486 * Definitions for inet6 sysctl operations. 487 * 488 * Third level is protocol number. 489 * Fourth level is desired variable within that protocol. 490 */ 491#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 492 493#define CTL_IPV6PROTO_NAMES { \ 494 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 495 { 0, 0 }, \ 496 { "tcp6", CTLTYPE_NODE }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { 0, 0 }, \ 500 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, \ 503 { "udp6", CTLTYPE_NODE }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 507 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 508 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 509 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 510 { 0, 0 }, \ 511 { "ip6", CTLTYPE_NODE }, \ 512 { 0, 0 }, \ 513 { 0, 0 }, \ 514 { 0, 0 }, \ 515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 516 { 0, 0 }, \ 517 { "ipsec6", CTLTYPE_NODE }, \ 518 { 0, 0 }, \ 519 { 0, 0 }, \ 520 { 0, 0 }, \ 521 { 0, 0 }, \ 522 { 0, 0 }, \ 523 { 0, 0 }, \ 524 { "icmp6", CTLTYPE_NODE }, \ 525 { 0, 0 }, \ 526 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 527 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 528 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 529 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 530 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 531 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 532 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 533 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 534 { 0, 0 }, \ 535 { 0, 0 }, \ 536 { 0, 0 }, \ 537 { "pim6", CTLTYPE_NODE }, \ 538} 539 540/* 541 * Names for IP sysctl objects 542 */ 543#define IPV6CTL_FORWARDING 1 /* act as router */ 544#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 545#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 546#ifdef notyet 547#define IPV6CTL_DEFMTU 4 /* default MTU */ 548#endif 549#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 550#define IPV6CTL_STATS 6 /* stats */ 551#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 552#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 553#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 554#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 555#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 556#define IPV6CTL_ACCEPT_RTADV 12 557#define IPV6CTL_KEEPFAITH 13 558#define IPV6CTL_LOG_INTERVAL 14 559#define IPV6CTL_HDRNESTLIMIT 15 560#define IPV6CTL_DAD_COUNT 16 561#define IPV6CTL_AUTO_FLOWLABEL 17 562#define IPV6CTL_DEFMCASTHLIM 18 563#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 564#define IPV6CTL_KAME_VERSION 20 565#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 566#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 567#if 0 /* obsolete */ 568#define IPV6CTL_MAPPED_ADDR 23 569#endif 570#define IPV6CTL_V6ONLY 24 571#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 572#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 573#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 574 575#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 576#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 577#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 578#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 579#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 580 581/* New entries should be added here from current IPV6CTL_MAXID value. */ 582/* to define items, should talk with KAME guys first, for *BSD compatibility */ 583#define IPV6CTL_MAXID 37 584 585/* 586 * Redefinition of mbuf flags 587 */ 588#define M_AUTHIPHDR M_PROTO2 589#define M_DECRYPTED M_PROTO3 590#define M_LOOP M_PROTO4 591#define M_AUTHIPDGM M_PROTO5 592 593#ifdef _KERNEL 594struct cmsghdr; 595 596int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 597int in6_localaddr __P((struct in6_addr *)); 598int in6_addrscope __P((struct in6_addr *)); 599struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 600struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 601extern void in6_if_up __P((struct ifnet *)); 602struct sockaddr; 603extern u_char ip6_protox[]; 604 605void in6_sin6_2_sin __P((struct sockaddr_in *sin, 606 struct sockaddr_in6 *sin6)); 607void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 608 struct sockaddr_in6 *sin6)); 609void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 610void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 611 612#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 613#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 614#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 615 616extern int (*faithprefix_p)(struct in6_addr *); 617#endif /* _KERNEL */ 618 619#ifdef _BSD_SIZE_T_ 620typedef _BSD_SIZE_T_ size_t; 621#undef _BSD_SIZE_T_ 622#endif 623 624__BEGIN_DECLS 625struct cmsghdr; 626 627extern int inet6_option_space __P((int)); 628extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 629extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 630 int, int)); 631extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 632extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 633extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 634 635extern size_t inet6_rthdr_space __P((int, int)); 636extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 637extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 638 unsigned int)); 639extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 640#if 0 /* not implemented yet */ 641extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 642#endif 643extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 644extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 645extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 646 647extern int inet6_opt_init __P((void *, size_t)); 648extern int inet6_opt_append __P((void *, size_t, int, uint8_t, 649 size_t, uint8_t, void **)); 650extern int inet6_opt_finish __P((void *, size_t, int)); 651extern int inet6_opt_set_val __P((void *, size_t, void *, int)); 652 653extern int inet6_opt_next __P((void *, size_t, int, uint8_t *, 654 size_t *, void **)); 655extern int inet6_opt_find __P((void *, size_t, int, uint8_t, 656 size_t *, void **)); 657extern int inet6_opt_get_val __P((void *, size_t, void *, int)); 658extern size_t inet6_rth_space __P((int, int)); 659extern void *inet6_rth_init __P((void *, int, int, int)); 660extern int inet6_rth_add __P((void *, const struct in6_addr *)); 661extern int inet6_rth_reverse __P((const void *, void *)); 662extern int inet6_rth_segments __P((const void *)); 663extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 664__END_DECLS 665 666#endif /* __BSD_VISIBLE */ 667 668#endif /* !_NETINET6_IN6_H_ */ 669