1/*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ 30 */ 31 32/*- 33 * Copyright (c) 1982, 1986, 1990, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in.h 8.3 (Berkeley) 1/3/94 61 * $FreeBSD$ 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 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#define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 205 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 207#endif 208 209extern const struct in6_addr in6addr_any; 210extern const struct in6_addr in6addr_loopback; 211#if __BSD_VISIBLE 212extern const struct in6_addr in6addr_nodelocal_allnodes; 213extern const struct in6_addr in6addr_linklocal_allnodes; 214extern const struct in6_addr in6addr_linklocal_allrouters; 215extern const struct in6_addr in6addr_linklocal_allv2routers; 216#endif 217 218/* 219 * Equality 220 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 221 * does not supply memcmp(). For userland memcmp() is preferred as it is 222 * in ANSI standard. 223 */ 224#ifdef _KERNEL 225#define IN6_ARE_ADDR_EQUAL(a, b) \ 226 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 227#else 228#if __BSD_VISIBLE 229#define IN6_ARE_ADDR_EQUAL(a, b) \ 230 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 231#endif 232#endif 233 234/* 235 * Unspecified 236 */ 237#define IN6_IS_ADDR_UNSPECIFIED(a) \ 238 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 239 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 240 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 241 (a)->__u6_addr.__u6_addr32[3] == 0) 242 243/* 244 * Loopback 245 */ 246#define IN6_IS_ADDR_LOOPBACK(a) \ 247 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 248 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 249 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 250 (a)->__u6_addr.__u6_addr32[3] == ntohl(1)) 251 252/* 253 * IPv4 compatible 254 */ 255#define IN6_IS_ADDR_V4COMPAT(a) \ 256 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 257 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 258 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 259 (a)->__u6_addr.__u6_addr32[3] != 0 && \ 260 (a)->__u6_addr.__u6_addr32[3] != ntohl(1)) 261 262/* 263 * Mapped 264 */ 265#define IN6_IS_ADDR_V4MAPPED(a) \ 266 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 267 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 268 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff)) 269 270/* 271 * KAME Scope Values 272 */ 273 274#ifdef _KERNEL /* XXX nonstandard */ 275#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 276#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 277#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 278#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 279#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 280#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 281#else 282#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 283#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 284#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 285#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 286#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 287#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 288#endif 289 290/* 291 * Unicast Scope 292 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 293 */ 294#define IN6_IS_ADDR_LINKLOCAL(a) \ 295 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 296#define IN6_IS_ADDR_SITELOCAL(a) \ 297 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 298 299/* 300 * Multicast 301 */ 302#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 303 304#ifdef _KERNEL /* XXX nonstandard */ 305#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 306#else 307#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 308#endif 309 310/* 311 * Multicast Scope 312 */ 313#ifdef _KERNEL /* refers nonstandard items */ 314#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 317#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 320#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 323#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 326#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 327 (IN6_IS_ADDR_MULTICAST(a) && \ 328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 329#define IN6_IS_ADDR_MC_GLOBAL(a) \ 330 (IN6_IS_ADDR_MULTICAST(a) && \ 331 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 332#else 333#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 336#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 339#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 342#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 345#define IN6_IS_ADDR_MC_GLOBAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 348#endif 349 350#ifdef _KERNEL /* nonstandard */ 351/* 352 * KAME Scope 353 */ 354#define IN6_IS_SCOPE_LINKLOCAL(a) \ 355 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 356 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 357#define IN6_IS_SCOPE_EMBED(a) \ 358 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 359 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 360 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 361 362#define IFA6_IS_DEPRECATED(a) \ 363 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 364 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 365 (a)->ia6_lifetime.ia6t_pltime) 366#define IFA6_IS_INVALID(a) \ 367 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 368 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 369 (a)->ia6_lifetime.ia6t_vltime) 370#endif /* _KERNEL */ 371 372/* 373 * IP6 route structure 374 */ 375#if __BSD_VISIBLE 376struct route_in6 { 377 struct rtentry *ro_rt; 378 struct llentry *ro_lle; 379 struct in6_addr *ro_ia6; 380 int ro_flags; 381 struct sockaddr_in6 ro_dst; 382}; 383#endif 384 385/* 386 * Options for use with [gs]etsockopt at the IPV6 level. 387 * First word of comment is data type; bool is stored in int. 388 */ 389/* no hdrincl */ 390#if 0 /* the followings are relic in IPv4 and hence are disabled */ 391#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 392#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 393#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 394#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 395#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 396#endif 397#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 398#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 399#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 400#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 401#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 402#define IPV6_JOIN_GROUP 12 /* ipv6_mreq; join a group membership */ 403#define IPV6_LEAVE_GROUP 13 /* ipv6_mreq; leave a group membership */ 404#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 405#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 406/* RFC2292 options */ 407#ifdef _KERNEL 408#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 409#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 410#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 411#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 412#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 413#define IPV6_2292RTHDR 24 /* bool; routing header */ 414#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 415#endif 416 417#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 418#define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 419#ifndef _KERNEL 420#define IPV6_BINDV6ONLY IPV6_V6ONLY 421#endif 422 423#if 1 /* IPSEC */ 424#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 425#endif /* IPSEC */ 426 427#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/* new socket options introduced in RFC3542 */ 438#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 439 440#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 441#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 442#define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 443#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 444#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 445#ifdef _KERNEL 446#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 447#endif 448 449#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 450#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 451 452#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 453 4 bytes int; MTU notification (cmsg) */ 454#if 0 /*obsoleted during 2292bis -> 3542*/ 455#define IPV6_REACHCONF 45 /* no data; ND reachability confirm 456 (cmsg only/not in of RFC3542) */ 457#endif 458 459/* more new socket options introduced in RFC3542 */ 460#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 461#define IPV6_HOPLIMIT 47 /* int; send hop limit */ 462#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 463#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 464#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 465#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 466#if 0 467#define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 468 /* obsoleted by RFC3542 */ 469#endif 470 471#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 472 473#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 474 475#define IPV6_TCLASS 61 /* int; send traffic class value */ 476#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 477 478#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 479 * the source address. 480 */ 481 482#define IPV6_BINDANY 64 /* bool: allow bind to any address */ 483 484/* 485 * The following option is private; do not use it from user applications. 486 * It is deliberately defined to the same value as IP_MSFILTER. 487 */ 488#define IPV6_MSFILTER 74 /* struct __msfilterreq; 489 * set/get multicast source filter list. 490 */ 491 492/* to define items, should talk with KAME guys first, for *BSD compatibility */ 493 494#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 495#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 496#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 497 498/* 499 * Defaults and limits for options 500 */ 501#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 502#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 503 504/* 505 * The im6o_membership vector for each socket is now dynamically allocated at 506 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 507 * according to a power-of-two increment. 508 */ 509#define IPV6_MIN_MEMBERSHIPS 31 510#define IPV6_MAX_MEMBERSHIPS 4095 511 512/* 513 * Default resource limits for IPv6 multicast source filtering. 514 * These may be modified by sysctl. 515 */ 516#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 517#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 518 519/* 520 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 521 */ 522struct ipv6_mreq { 523 struct in6_addr ipv6mr_multiaddr; 524 unsigned int ipv6mr_interface; 525}; 526 527/* 528 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 529 */ 530struct in6_pktinfo { 531 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 532 unsigned int ipi6_ifindex; /* send/recv interface index */ 533}; 534 535/* 536 * Control structure for IPV6_RECVPATHMTU socket option. 537 */ 538struct ip6_mtuinfo { 539 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 540 uint32_t ip6m_mtu; 541}; 542 543/* 544 * Argument for IPV6_PORTRANGE: 545 * - which range to search when port is unspecified at bind() or connect() 546 */ 547#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 548#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 549#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 550 551#if __BSD_VISIBLE 552/* 553 * Definitions for inet6 sysctl operations. 554 * 555 * Third level is protocol number. 556 * Fourth level is desired variable within that protocol. 557 */ 558#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 559 560/* 561 * Names for IP sysctl objects 562 */ 563#define IPV6CTL_FORWARDING 1 /* act as router */ 564#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 565#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 566#ifdef notyet 567#define IPV6CTL_DEFMTU 4 /* default MTU */ 568#endif 569#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 570#define IPV6CTL_STATS 6 /* stats */ 571#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 572#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 573#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 574#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 575#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 576#define IPV6CTL_ACCEPT_RTADV 12 577#define IPV6CTL_KEEPFAITH 13 578#define IPV6CTL_LOG_INTERVAL 14 579#define IPV6CTL_HDRNESTLIMIT 15 580#define IPV6CTL_DAD_COUNT 16 581#define IPV6CTL_AUTO_FLOWLABEL 17 582#define IPV6CTL_DEFMCASTHLIM 18 583#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 584#define IPV6CTL_KAME_VERSION 20 585#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 586#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 587#if 0 /* obsolete */ 588#define IPV6CTL_MAPPED_ADDR 23 589#endif 590#define IPV6CTL_V6ONLY 24 591#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 592#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 593#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 594 595#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 596#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 597#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 598#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 599#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 600#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 601#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 602#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 603 604#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 605#if 0 606#define IPV6CTL_IFQ 42 /* ip6intrq node */ 607#define IPV6CTL_ISATAPRTR 43 /* isatap router */ 608#endif 609#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 610 611/* New entries should be added here from current IPV6CTL_MAXID value. */ 612/* to define items, should talk with KAME guys first, for *BSD compatibility */ 613#define IPV6CTL_STEALTH 45 614 615#define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 616#define IPV6CTL_NO_RADR 48 /* No defroute from RA */ 617#define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA 618 * receiving IF. */ 619#define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding 620 enabled */ 621#define IPV6CTL_MAXID 51 622#endif /* __BSD_VISIBLE */ 623 624/* 625 * Redefinition of mbuf flags 626 */ 627#define M_AUTHIPHDR M_PROTO2 628#define M_DECRYPTED M_PROTO3 629#define M_LOOP M_PROTO4 630#define M_AUTHIPDGM M_PROTO5 631#define M_RTALERT_MLD M_PROTO6 632 633#ifdef _KERNEL 634struct cmsghdr; 635struct ip6_hdr; 636 637int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 638int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t); 639int in6_localaddr(struct in6_addr *); 640int in6_localip(struct in6_addr *); 641int in6_addrscope(struct in6_addr *); 642struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 643extern void in6_if_up(struct ifnet *); 644struct sockaddr; 645extern u_char ip6_protox[]; 646 647void in6_sin6_2_sin(struct sockaddr_in *sin, 648 struct sockaddr_in6 *sin6); 649void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 650 struct sockaddr_in6 *sin6); 651void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 652void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam); 653extern void addrsel_policy_init(void); 654 655#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 656#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 657#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 658 659extern int (*faithprefix_p)(struct in6_addr *); 660#endif /* _KERNEL */ 661 662#ifndef _SIZE_T_DECLARED 663typedef __size_t size_t; 664#define _SIZE_T_DECLARED 665#endif 666 667#ifndef _SOCKLEN_T_DECLARED 668typedef __socklen_t socklen_t; 669#define _SOCKLEN_T_DECLARED 670#endif 671 672#if __BSD_VISIBLE 673 674__BEGIN_DECLS 675struct cmsghdr; 676 677extern int inet6_option_space(int); 678extern int inet6_option_init(void *, struct cmsghdr **, int); 679extern int inet6_option_append(struct cmsghdr *, const uint8_t *, 680 int, int); 681extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 682extern int inet6_option_next(const struct cmsghdr *, uint8_t **); 683extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int); 684 685extern size_t inet6_rthdr_space(int, int); 686extern struct cmsghdr *inet6_rthdr_init(void *, int); 687extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 688 unsigned int); 689extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 690#if 0 /* not implemented yet */ 691extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 692#endif 693extern int inet6_rthdr_segments(const struct cmsghdr *); 694extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 695extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 696 697extern int inet6_opt_init(void *, socklen_t); 698extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t, 699 uint8_t, void **); 700extern int inet6_opt_finish(void *, socklen_t, int); 701extern int inet6_opt_set_val(void *, int, void *, socklen_t); 702 703extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *, 704 void **); 705extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *, 706 void **); 707extern int inet6_opt_get_val(void *, int, void *, socklen_t); 708extern socklen_t inet6_rth_space(int, int); 709extern void *inet6_rth_init(void *, socklen_t, int, int); 710extern int inet6_rth_add(void *, const struct in6_addr *); 711extern int inet6_rth_reverse(const void *, void *); 712extern int inet6_rth_segments(const void *); 713extern struct in6_addr *inet6_rth_getaddr(const void *, int); 714__END_DECLS 715 716#endif /* __BSD_VISIBLE */ 717 718#endif /* !_NETINET6_IN6_H_ */ 719