in6.h revision 304101
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: stable/11/sys/netinet6/in6.h 304101 2016-08-14 20:22:03Z ae $ 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_uptime - (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_uptime - (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 /* 380 * ro_prepend and ro_plen are only used for bpf to pass in a 381 * preformed header. They are not cacheable. 382 */ 383 char *ro_prepend; 384 uint16_t ro_plen; 385 uint16_t ro_flags; 386 uint16_t ro_mtu; /* saved ro_rt mtu */ 387 uint16_t spare; 388 struct sockaddr_in6 ro_dst; 389}; 390#endif 391 392#ifdef _KERNEL 393#define MTAG_ABI_IPV6 1444287380 /* IPv6 ABI */ 394#define IPV6_TAG_DIRECT 0 /* direct-dispatch IPv6 */ 395#endif /* _KERNEL */ 396 397/* 398 * Options for use with [gs]etsockopt at the IPV6 level. 399 * First word of comment is data type; bool is stored in int. 400 */ 401/* no hdrincl */ 402#if 0 /* the followings are relic in IPv4 and hence are disabled */ 403#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 404#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 405#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 406#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 407#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 408#endif 409#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 410#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 411#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 412#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 413#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 414#define IPV6_JOIN_GROUP 12 /* ipv6_mreq; join a group membership */ 415#define IPV6_LEAVE_GROUP 13 /* ipv6_mreq; leave a group membership */ 416#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 417#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 418/* RFC2292 options */ 419#ifdef _KERNEL 420#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 421#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 422#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 423#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 424#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 425#define IPV6_2292RTHDR 24 /* bool; routing header */ 426#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 427#endif 428 429#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 430#define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 431#ifndef _KERNEL 432#define IPV6_BINDV6ONLY IPV6_V6ONLY 433#endif 434 435#if 1 /* IPSEC */ 436#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 437#endif /* IPSEC */ 438 439 /* 29; unused; was IPV6_FAITH */ 440#if 1 /* IPV6FIREWALL */ 441#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 442#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 443#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 444#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 445#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 446#endif 447 448/* new socket options introduced in RFC3542 */ 449#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 450 451#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 452#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 453#define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 454#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 455#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 456#ifdef _KERNEL 457#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 458#endif 459 460#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 461#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 462 463#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 464 4 bytes int; MTU notification (cmsg) */ 465#if 0 /*obsoleted during 2292bis -> 3542*/ 466#define IPV6_REACHCONF 45 /* no data; ND reachability confirm 467 (cmsg only/not in of RFC3542) */ 468#endif 469 470/* more new socket options introduced in RFC3542 */ 471#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 472#define IPV6_HOPLIMIT 47 /* int; send hop limit */ 473#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 474#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 475#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 476#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 477#if 0 478#define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 479 /* obsoleted by RFC3542 */ 480#endif 481 482#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 483 484#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 485 486#define IPV6_TCLASS 61 /* int; send traffic class value */ 487#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 488 489#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 490 * the source address. 491 */ 492 493#define IPV6_BINDANY 64 /* bool: allow bind to any address */ 494 495#define IPV6_BINDMULTI 65 /* bool; allow multibind to same addr/port */ 496#define IPV6_RSS_LISTEN_BUCKET 66 /* int; set RSS listen bucket */ 497#define IPV6_FLOWID 67 /* int; flowid of given socket */ 498#define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */ 499#define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */ 500#define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */ 501#define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */ 502 503/* 504 * The following option is private; do not use it from user applications. 505 * It is deliberately defined to the same value as IP_MSFILTER. 506 */ 507#define IPV6_MSFILTER 74 /* struct __msfilterreq; 508 * set/get multicast source filter list. 509 */ 510 511/* to define items, should talk with KAME guys first, for *BSD compatibility */ 512 513#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 514#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 515#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 516 517/* 518 * Defaults and limits for options 519 */ 520#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 521#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 522 523/* 524 * The im6o_membership vector for each socket is now dynamically allocated at 525 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 526 * according to a power-of-two increment. 527 */ 528#define IPV6_MIN_MEMBERSHIPS 31 529#define IPV6_MAX_MEMBERSHIPS 4095 530 531/* 532 * Default resource limits for IPv6 multicast source filtering. 533 * These may be modified by sysctl. 534 */ 535#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 536#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 537 538/* 539 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 540 */ 541struct ipv6_mreq { 542 struct in6_addr ipv6mr_multiaddr; 543 unsigned int ipv6mr_interface; 544}; 545 546/* 547 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 548 */ 549struct in6_pktinfo { 550 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 551 unsigned int ipi6_ifindex; /* send/recv interface index */ 552}; 553 554/* 555 * Control structure for IPV6_RECVPATHMTU socket option. 556 */ 557struct ip6_mtuinfo { 558 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 559 uint32_t ip6m_mtu; 560}; 561 562/* 563 * Argument for IPV6_PORTRANGE: 564 * - which range to search when port is unspecified at bind() or connect() 565 */ 566#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 567#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 568#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 569 570#if __BSD_VISIBLE 571/* 572 * Definitions for inet6 sysctl operations. 573 * 574 * Third level is protocol number. 575 * Fourth level is desired variable within that protocol. 576 */ 577#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 578 579/* 580 * Names for IP sysctl objects 581 */ 582#define IPV6CTL_FORWARDING 1 /* act as router */ 583#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 584#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 585#ifdef notyet 586#define IPV6CTL_DEFMTU 4 /* default MTU */ 587#endif 588#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 589#define IPV6CTL_STATS 6 /* stats */ 590#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 591#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 592#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 593#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 594#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 595#define IPV6CTL_ACCEPT_RTADV 12 596 /* 13; unused; was: IPV6CTL_KEEPFAITH */ 597#define IPV6CTL_LOG_INTERVAL 14 598#define IPV6CTL_HDRNESTLIMIT 15 599#define IPV6CTL_DAD_COUNT 16 600#define IPV6CTL_AUTO_FLOWLABEL 17 601#define IPV6CTL_DEFMCASTHLIM 18 602#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 603#define IPV6CTL_KAME_VERSION 20 604#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 605#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 606#if 0 /* obsolete */ 607#define IPV6CTL_MAPPED_ADDR 23 608#endif 609#define IPV6CTL_V6ONLY 24 610/* IPV6CTL_RTEXPIRE 25 deprecated */ 611/* IPV6CTL_RTMINEXPIRE 26 deprecated */ 612/* IPV6CTL_RTMAXCACHE 27 deprecated */ 613 614#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 615#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 616#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 617#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 618#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 619#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 620#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 621#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 622 623#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 624#if 0 625#define IPV6CTL_IFQ 42 /* ip6intrq node */ 626#define IPV6CTL_ISATAPRTR 43 /* isatap router */ 627#endif 628#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 629 630/* New entries should be added here from current IPV6CTL_MAXID value. */ 631/* to define items, should talk with KAME guys first, for *BSD compatibility */ 632#define IPV6CTL_STEALTH 45 633 634#define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 635#define IPV6CTL_NO_RADR 48 /* No defroute from RA */ 636#define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA 637 * receiving IF. */ 638#define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding 639 enabled */ 640#define IPV6CTL_INTRQMAXLEN 51 /* max length of IPv6 netisr queue */ 641#define IPV6CTL_INTRDQMAXLEN 52 /* max length of direct IPv6 netisr 642 * queue */ 643#define IPV6CTL_MAXID 53 644#endif /* __BSD_VISIBLE */ 645 646/* 647 * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/, 648 * the protocol specific mbuf flags are shared between them. 649 */ 650#define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */ 651#define M_IP6_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 652#define M_IP_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 653#define M_SKIP_FIREWALL M_PROTO3 /* skip firewall processing */ 654#define M_AUTHIPHDR M_PROTO4 655#define M_DECRYPTED M_PROTO5 656#define M_LOOP M_PROTO6 657#define M_AUTHIPDGM M_PROTO7 658#define M_RTALERT_MLD M_PROTO8 659 660#ifdef _KERNEL 661struct cmsghdr; 662struct ip6_hdr; 663 664int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 665int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t); 666int in6_cksum_partial(struct mbuf *, u_int8_t, u_int32_t, u_int32_t, 667 u_int32_t); 668int in6_localaddr(struct in6_addr *); 669int in6_localip(struct in6_addr *); 670int in6_ifhasaddr(struct ifnet *, struct in6_addr *); 671int in6_addrscope(const struct in6_addr *); 672char *ip6_sprintf(char *, const struct in6_addr *); 673struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 674extern void in6_if_up(struct ifnet *); 675struct sockaddr; 676extern u_char ip6_protox[]; 677 678void in6_sin6_2_sin(struct sockaddr_in *sin, 679 struct sockaddr_in6 *sin6); 680void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 681 struct sockaddr_in6 *sin6); 682void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 683void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam); 684extern void addrsel_policy_init(void); 685 686#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 687#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 688#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 689 690#endif /* _KERNEL */ 691 692#ifndef _SIZE_T_DECLARED 693typedef __size_t size_t; 694#define _SIZE_T_DECLARED 695#endif 696 697#ifndef _SOCKLEN_T_DECLARED 698typedef __socklen_t socklen_t; 699#define _SOCKLEN_T_DECLARED 700#endif 701 702#if __BSD_VISIBLE 703 704__BEGIN_DECLS 705struct cmsghdr; 706 707extern int inet6_option_space(int); 708extern int inet6_option_init(void *, struct cmsghdr **, int); 709extern int inet6_option_append(struct cmsghdr *, const uint8_t *, 710 int, int); 711extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 712extern int inet6_option_next(const struct cmsghdr *, uint8_t **); 713extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int); 714 715extern size_t inet6_rthdr_space(int, int); 716extern struct cmsghdr *inet6_rthdr_init(void *, int); 717extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 718 unsigned int); 719extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 720#if 0 /* not implemented yet */ 721extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 722#endif 723extern int inet6_rthdr_segments(const struct cmsghdr *); 724extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 725extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 726 727extern int inet6_opt_init(void *, socklen_t); 728extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t, 729 uint8_t, void **); 730extern int inet6_opt_finish(void *, socklen_t, int); 731extern int inet6_opt_set_val(void *, int, void *, socklen_t); 732 733extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *, 734 void **); 735extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *, 736 void **); 737extern int inet6_opt_get_val(void *, int, void *, socklen_t); 738extern socklen_t inet6_rth_space(int, int); 739extern void *inet6_rth_init(void *, socklen_t, int, int); 740extern int inet6_rth_add(void *, const struct in6_addr *); 741extern int inet6_rth_reverse(const void *, void *); 742extern int inet6_rth_segments(const void *); 743extern struct in6_addr *inet6_rth_getaddr(const void *, int); 744__END_DECLS 745 746#endif /* __BSD_VISIBLE */ 747 748#endif /* !_NETINET6_IN6_H_ */ 749