1/* $FreeBSD: src/sys/netinet6/in6.h,v 1.19 2002/04/19 04:46:22 suz 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 * 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#include <sys/types.h> 72 73/* 74 * Identification of the network protocol stack 75 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 76 * has the table of implementation/integration differences. 77 */ 78#define __KAME__ 79#define __KAME_VERSION "20010528/FreeBSD" 80 81/* 82 * Local port number conventions: 83 * 84 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 85 * unless a kernel is compiled with IPNOPRIVPORTS defined. 86 * 87 * When a user does a bind(2) or connect(2) with a port number of zero, 88 * a non-conflicting local port address is chosen. 89 * 90 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 91 * that is settable by sysctl(3); net.inet.ip.anonportmin and 92 * net.inet.ip.anonportmax respectively. 93 * 94 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 95 * default assignment range. 96 * 97 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 98 * 99 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 100 * and exists only for FreeBSD compatibility purposes. 101 * 102 * The value IP_PORTRANGE_LOW changes the range to the "low" are 103 * that is (by convention) restricted to privileged processes. 104 * This convention is based on "vouchsafe" principles only. 105 * It is only secure if you trust the remote host to restrict these ports. 106 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 107 */ 108 109#define IPV6PORT_RESERVED 1024 110#define IPV6PORT_ANONMIN 49152 111#define IPV6PORT_ANONMAX 65535 112#define IPV6PORT_RESERVEDMIN 600 113#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 114 115/* 116 * IPv6 address 117 */ 118struct in6_addr { 119 union { 120 uint8_t __u6_addr8[16]; 121 uint16_t __u6_addr16[8]; 122 uint32_t __u6_addr32[4]; 123 } __u6_addr; /* 128-bit IP6 address */ 124}; 125 126#define s6_addr __u6_addr.__u6_addr8 127#ifdef _KERNEL /* XXX nonstandard */ 128#define s6_addr8 __u6_addr.__u6_addr8 129#define s6_addr16 __u6_addr.__u6_addr16 130#define s6_addr32 __u6_addr.__u6_addr32 131#endif 132 133#define INET6_ADDRSTRLEN 46 134 135/* 136 * Socket address for IPv6 137 */ 138#ifndef _XOPEN_SOURCE 139#define SIN6_LEN 140#endif 141struct sockaddr_in6 { 142 uint8_t sin6_family; /* AF_INET6 (sa_family_t) */ 143 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 144 uint32_t sin6_flowinfo; /* IP6 flow information */ 145 struct in6_addr sin6_addr; /* IP6 address */ 146 uint32_t sin6_scope_id; /* scope zone index */ 147}; 148 149/* 150 * Local definition for masks 151 */ 152#ifdef _KERNEL /* XXX nonstandard */ 153#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 154#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 155 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 156#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 157 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 158#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 159 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 160#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 161 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 162#endif 163 164#ifdef _KERNEL 165extern const struct sockaddr_in6 sa6_any; 166 167extern const struct in6_addr in6mask0; 168extern const struct in6_addr in6mask32; 169extern const struct in6_addr in6mask64; 170extern const struct in6_addr in6mask96; 171extern const struct in6_addr in6mask128; 172#endif /* _KERNEL */ 173 174/* 175 * Macros started with IPV6_ADDR is KAME local 176 */ 177#ifdef _KERNEL /* XXX nonstandard */ 178#if BYTE_ORDER == BIG_ENDIAN 179#define IPV6_ADDR_INT32_ONE 1 180#define IPV6_ADDR_INT32_TWO 2 181#define IPV6_ADDR_INT32_MNL 0xff010000 182#define IPV6_ADDR_INT32_MLL 0xff020000 183#define IPV6_ADDR_INT32_SMP 0x0000ffff 184#define IPV6_ADDR_INT16_ULL 0xfe80 185#define IPV6_ADDR_INT16_USL 0xfec0 186#define IPV6_ADDR_INT16_MLL 0xff02 187#elif BYTE_ORDER == LITTLE_ENDIAN 188#define IPV6_ADDR_INT32_ONE 0x01000000 189#define IPV6_ADDR_INT32_TWO 0x02000000 190#define IPV6_ADDR_INT32_MNL 0x000001ff 191#define IPV6_ADDR_INT32_MLL 0x000002ff 192#define IPV6_ADDR_INT32_SMP 0xffff0000 193#define IPV6_ADDR_INT16_ULL 0x80fe 194#define IPV6_ADDR_INT16_USL 0xc0fe 195#define IPV6_ADDR_INT16_MLL 0x02ff 196#endif 197#endif 198 199/* 200 * Definition of some useful macros to handle IP6 addresses 201 */ 202#define IN6ADDR_ANY_INIT \ 203 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 205#define IN6ADDR_LOOPBACK_INIT \ 206 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 207 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 208#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 209 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 211#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 212 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 213 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 214#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 215 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 216 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 217 218 219__BEGIN_DECLS 220 221extern const struct in6_addr in6addr_any; 222extern const struct in6_addr in6addr_loopback; 223extern const struct in6_addr in6addr_nodelocal_allnodes; 224extern const struct in6_addr in6addr_linklocal_allnodes; 225extern const struct in6_addr in6addr_linklocal_allrouters; 226 227__END_DECLS 228 229/* 230 * Equality 231 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 232 * does not supply memcmp(). For userland memcmp() is preferred as it is 233 * in ANSI standard. 234 */ 235#ifdef _KERNEL 236#define IN6_ARE_ADDR_EQUAL(a, b) \ 237 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 238#else 239#define IN6_ARE_ADDR_EQUAL(a, b) \ 240 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 241#endif 242 243#ifdef _KERNEL /* non standard */ 244/* see if two addresses are equal in a scope-conscious manner. */ 245#define SA6_ARE_ADDR_EQUAL(a, b) \ 246 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 247 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 248 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 249#endif 250 251/* 252 * Unspecified 253 */ 254#define IN6_IS_ADDR_UNSPECIFIED(a) \ 255 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 256 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 257 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 258 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 259 260/* 261 * Loopback 262 */ 263#define IN6_IS_ADDR_LOOPBACK(a) \ 264 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 265 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 266 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 267 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 268 269/* 270 * IPv4 compatible 271 */ 272#define IN6_IS_ADDR_V4COMPAT(a) \ 273 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 274 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 275 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 276 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 277 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 278 279/* 280 * Mapped 281 */ 282#define IN6_IS_ADDR_V4MAPPED(a) \ 283 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 284 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 285 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 286 287/* 288 * KAME Scope Values 289 */ 290 291#ifdef _KERNEL /* XXX nonstandard */ 292#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 293#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 294#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 295#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 296#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 297#else 298#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 299#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 300#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 301#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 302#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 303#endif 304 305/* 306 * Unicast Scope 307 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 308 */ 309#define IN6_IS_ADDR_LINKLOCAL(a) \ 310 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 311#define IN6_IS_ADDR_SITELOCAL(a) \ 312 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 313 314/* 315 * Multicast 316 */ 317#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 318 319#ifdef _KERNEL /* XXX nonstandard */ 320#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 321#else 322#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 323#endif 324 325/* 326 * Multicast Scope 327 */ 328#ifdef _KERNEL /* refers nonstandard items */ 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#else 345#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 348#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 349 (IN6_IS_ADDR_MULTICAST(a) && \ 350 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 351#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 352 (IN6_IS_ADDR_MULTICAST(a) && \ 353 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 354#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 355 (IN6_IS_ADDR_MULTICAST(a) && \ 356 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 357#define IN6_IS_ADDR_MC_GLOBAL(a) \ 358 (IN6_IS_ADDR_MULTICAST(a) && \ 359 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 360#endif 361 362#ifdef _KERNEL /* nonstandard */ 363/* 364 * KAME Scope 365 */ 366#define IN6_IS_SCOPE_LINKLOCAL(a) \ 367 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 368 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 369 370#define IFA6_IS_DEPRECATED(a) \ 371 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 372 (a)->ia6_lifetime.ia6t_preferred < time_second) 373#define IFA6_IS_INVALID(a) \ 374 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 375 (a)->ia6_lifetime.ia6t_expire < time_second) 376#endif /* _KERNEL */ 377 378/* 379 * IP6 route structure 380 */ 381#ifndef _XOPEN_SOURCE 382struct route_in6 { 383 struct rtentry *ro_rt; 384 struct sockaddr_in6 ro_dst; 385}; 386#endif 387 388/* 389 * Options for use with [gs]etsockopt at the IPV6 level. 390 * First word of comment is data type; bool is stored in int. 391 */ 392/* no hdrincl */ 393#if 0 /* the followings are relic in IPv4 and hence are disabled */ 394#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 395#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 396#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 397#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 398#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 399#endif 400#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 401#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 402#define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 403#define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 404#define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 405#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 406#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 407#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 408#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 409/* RFC2292 options */ 410#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 411#define IPV6_HOPLIMIT 20 /* bool; hop limit */ 412#define IPV6_NEXTHOP 21 /* bool; next hop addr */ 413#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 414#define IPV6_DSTOPTS 23 /* bool; destination option */ 415#define IPV6_RTHDR 24 /* bool; routing header */ 416#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 417 418#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 419#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 420#ifndef _KERNEL 421#define IPV6_BINDV6ONLY IPV6_V6ONLY 422#endif 423 424#if 1 /* IPSEC */ 425#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 426#endif 427#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 428 429#if 1 /* IPV6FIREWALL */ 430#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 431#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 432#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 433#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 434#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 435#endif 436 437/* to define items, should talk with KAME guys first, for *BSD compatibility */ 438 439#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 440#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 441#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 442 443/* 444 * Defaults and limits for options 445 */ 446#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 447#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 448 449/* 450 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 451 */ 452struct ipv6_mreq { 453 struct in6_addr ipv6mr_multiaddr; 454 unsigned int ipv6mr_interface; 455}; 456 457/* 458 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 459 */ 460struct in6_pktinfo { 461 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 462 unsigned int ipi6_ifindex; /* send/recv interface index */ 463}; 464 465/* 466 * Argument for IPV6_PORTRANGE: 467 * - which range to search when port is unspecified at bind() or connect() 468 */ 469#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 470#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 471#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 472 473#ifndef _XOPEN_SOURCE 474/* 475 * Definitions for inet6 sysctl operations. 476 * 477 * Third level is protocol number. 478 * Fourth level is desired variable within that protocol. 479 */ 480#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 481 482#define CTL_IPV6PROTO_NAMES { \ 483 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 484 { 0, 0 }, \ 485 { "tcp6", CTLTYPE_NODE }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, \ 489 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 490 { 0, 0 }, \ 491 { 0, 0 }, \ 492 { "udp6", CTLTYPE_NODE }, \ 493 { 0, 0 }, \ 494 { 0, 0 }, \ 495 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 496 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 497 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 498 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 499 { 0, 0 }, \ 500 { "ip6", CTLTYPE_NODE }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, \ 503 { 0, 0 }, \ 504 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 505 { 0, 0 }, \ 506 { "ipsec6", CTLTYPE_NODE }, \ 507 { 0, 0 }, \ 508 { 0, 0 }, \ 509 { 0, 0 }, \ 510 { 0, 0 }, \ 511 { 0, 0 }, \ 512 { 0, 0 }, \ 513 { "icmp6", CTLTYPE_NODE }, \ 514 { 0, 0 }, \ 515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 516 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 517 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 518 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 519 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 520 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 521 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 522 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 523 { 0, 0 }, \ 524 { 0, 0 }, \ 525 { 0, 0 }, \ 526 { "pim6", CTLTYPE_NODE }, \ 527} 528 529/* 530 * Names for IP sysctl objects 531 */ 532#define IPV6CTL_FORWARDING 1 /* act as router */ 533#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 534#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 535#ifdef notyet 536#define IPV6CTL_DEFMTU 4 /* default MTU */ 537#endif 538#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 539#define IPV6CTL_STATS 6 /* stats */ 540#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 541#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 542#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 543#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 544#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 545#define IPV6CTL_ACCEPT_RTADV 12 546#define IPV6CTL_KEEPFAITH 13 547#define IPV6CTL_LOG_INTERVAL 14 548#define IPV6CTL_HDRNESTLIMIT 15 549#define IPV6CTL_DAD_COUNT 16 550#define IPV6CTL_AUTO_FLOWLABEL 17 551#define IPV6CTL_DEFMCASTHLIM 18 552#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 553#define IPV6CTL_KAME_VERSION 20 554#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 555#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 556#if 0 /* obsolete */ 557#define IPV6CTL_MAPPED_ADDR 23 558#endif 559#define IPV6CTL_V6ONLY 24 560#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 561#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 562#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 563 564#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 565#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 566#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 567#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 568#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 569 570/* New entries should be added here from current IPV6CTL_MAXID value. */ 571/* to define items, should talk with KAME guys first, for *BSD compatibility */ 572#define IPV6CTL_MAXID 37 573 574#endif /* !_XOPEN_SOURCE */ 575 576/* 577 * Redefinition of mbuf flags 578 */ 579#define M_AUTHIPHDR M_PROTO2 580#define M_DECRYPTED M_PROTO3 581#define M_LOOP M_PROTO4 582#define M_AUTHIPDGM M_PROTO5 583 584#ifdef _KERNEL 585struct cmsghdr; 586 587int in6_cksum __P((struct mbuf *, uint8_t, uint32_t, uint32_t)); 588int in6_localaddr __P((struct in6_addr *)); 589int in6_addrscope __P((struct in6_addr *)); 590struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 591struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 592extern void in6_if_up __P((struct ifnet *)); 593struct sockaddr; 594extern u_char ip6_protox[]; 595 596void in6_sin6_2_sin __P((struct sockaddr_in *sin, 597 struct sockaddr_in6 *sin6)); 598void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 599 struct sockaddr_in6 *sin6)); 600void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 601void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 602 603#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 604#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 605#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 606 607extern int (*faithprefix_p)(struct in6_addr *); 608#endif /* _KERNEL */ 609 610__BEGIN_DECLS 611struct cmsghdr; 612 613extern int inet6_option_space __P((int)); 614extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 615extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 616 int, int)); 617extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 618extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 619extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 620 621extern size_t inet6_rthdr_space __P((int, int)); 622extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 623extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 624 unsigned int)); 625extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 626#if 0 /* not implemented yet */ 627extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 628#endif 629extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 630extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 631extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 632 633extern int inet6_opt_init __P((void *, size_t)); 634extern int inet6_opt_append __P((void *, size_t, int, uint8_t, 635 size_t, uint8_t, void **)); 636extern int inet6_opt_finish __P((void *, size_t, int)); 637extern int inet6_opt_set_val __P((void *, size_t, void *, int)); 638 639extern int inet6_opt_next __P((void *, size_t, int, uint8_t *, 640 size_t *, void **)); 641extern int inet6_opt_find __P((void *, size_t, int, uint8_t, 642 size_t *, void **)); 643extern int inet6_opt_get_val __P((void *, size_t, void *, int)); 644extern size_t inet6_rth_space __P((int, int)); 645extern void *inet6_rth_init __P((void *, int, int, int)); 646extern int inet6_rth_add __P((void *, const struct in6_addr *)); 647extern int inet6_rth_reverse __P((const void *, void *)); 648extern int inet6_rth_segments __P((const void *)); 649extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 650__END_DECLS 651 652#endif /* !_NETINET6_IN6_H_ */ 653