1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ 32 */ 33 34/*- 35 * Copyright (c) 1982, 1986, 1990, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 */ 62 63#ifndef __KAME_NETINET_IN_H_INCLUDED_ 64#error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 65#endif 66 67#ifndef _NETINET6_IN6_H_ 68#define _NETINET6_IN6_H_ 69 70/* 71 * Identification of the network protocol stack 72 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 73 * has the table of implementation/integration differences. 74 */ 75#define __KAME__ 76#define __KAME_VERSION "FreeBSD" 77 78/* 79 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 80 * by the net.inet.ip.portrange sysctl tree. The following defines exist 81 * for compatibility with userland applications that need them. 82 */ 83#if __BSD_VISIBLE 84#define IPV6PORT_RESERVED 1024 85#define IPV6PORT_ANONMIN 49152 86#define IPV6PORT_ANONMAX 65535 87#define IPV6PORT_RESERVEDMIN 600 88#define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 89#endif 90 91/* 92 * IPv6 address 93 */ 94struct in6_addr { 95 union { 96 uint8_t __u6_addr8[16]; 97 uint16_t __u6_addr16[8]; 98 uint32_t __u6_addr32[4]; 99 } __u6_addr; /* 128-bit IP6 address */ 100}; 101 102#define s6_addr __u6_addr.__u6_addr8 103#if __BSD_VISIBLE 104/* 105 * s6_addr is the only in6_addr element specified in RFCs 2553 and 3493, 106 * also in POSIX 1003.1-2017. The following three definitions were not 107 * exposed to user programs in FreeBSD before 14.1, or in other BSDs, 108 * and are thus less portable than s6_addr. 109 */ 110#define s6_addr8 __u6_addr.__u6_addr8 111#define s6_addr16 __u6_addr.__u6_addr16 112#define s6_addr32 __u6_addr.__u6_addr32 113#endif 114 115#define INET6_ADDRSTRLEN 46 116 117/* 118 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 119 */ 120 121/* 122 * Socket address for IPv6 123 */ 124#if __BSD_VISIBLE 125#define SIN6_LEN 126#endif 127 128struct sockaddr_in6 { 129 uint8_t sin6_len; /* length of this struct */ 130 sa_family_t sin6_family; /* AF_INET6 */ 131 in_port_t sin6_port; /* Transport layer port # */ 132 uint32_t sin6_flowinfo; /* IP6 flow information */ 133 struct in6_addr sin6_addr; /* IP6 address */ 134 uint32_t sin6_scope_id; /* scope zone index */ 135}; 136 137/* 138 * Local definition for masks 139 */ 140#ifdef _KERNEL /* XXX nonstandard */ 141#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 142#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 143 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 144#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 145 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 146#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 147 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 148#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 149 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 150#endif 151 152#ifdef _KERNEL 153extern const struct sockaddr_in6 sa6_any; 154 155extern const struct in6_addr in6mask0; 156extern const struct in6_addr in6mask32; 157extern const struct in6_addr in6mask64; 158extern const struct in6_addr in6mask96; 159extern const struct in6_addr in6mask128; 160#endif /* _KERNEL */ 161 162/* 163 * Macros started with IPV6_ADDR is KAME local 164 */ 165#ifdef _KERNEL /* XXX nonstandard */ 166#if _BYTE_ORDER == _BIG_ENDIAN 167#define IPV6_ADDR_INT32_ONE 1 168#define IPV6_ADDR_INT32_TWO 2 169#define IPV6_ADDR_INT32_MNL 0xff010000 170#define IPV6_ADDR_INT32_MLL 0xff020000 171#define IPV6_ADDR_INT32_SMP 0x0000ffff 172#define IPV6_ADDR_INT16_ULL 0xfe80 173#define IPV6_ADDR_INT16_USL 0xfec0 174#define IPV6_ADDR_INT16_MLL 0xff02 175#elif _BYTE_ORDER == _LITTLE_ENDIAN 176#define IPV6_ADDR_INT32_ONE 0x01000000 177#define IPV6_ADDR_INT32_TWO 0x02000000 178#define IPV6_ADDR_INT32_MNL 0x000001ff 179#define IPV6_ADDR_INT32_MLL 0x000002ff 180#define IPV6_ADDR_INT32_SMP 0xffff0000 181#define IPV6_ADDR_INT16_ULL 0x80fe 182#define IPV6_ADDR_INT16_USL 0xc0fe 183#define IPV6_ADDR_INT16_MLL 0x02ff 184#endif 185#endif 186 187/* 188 * Definition of some useful macros to handle IP6 addresses 189 */ 190#if __BSD_VISIBLE 191#define IN6ADDR_ANY_INIT \ 192 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 193 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 194#define IN6ADDR_LOOPBACK_INIT \ 195 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 197#define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 198 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 199 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 200#define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 201 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 203#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 204 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 206#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 207 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 209#define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 210 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 212#endif 213 214extern const struct in6_addr in6addr_any; 215extern const struct in6_addr in6addr_loopback; 216#if __BSD_VISIBLE 217extern const struct in6_addr in6addr_nodelocal_allnodes; 218extern const struct in6_addr in6addr_linklocal_allnodes; 219extern const struct in6_addr in6addr_linklocal_allrouters; 220extern const struct in6_addr in6addr_linklocal_allv2routers; 221#endif 222 223/* 224 * Equality 225 */ 226#if __BSD_VISIBLE 227#define IN6_ARE_ADDR_EQUAL(a, b) \ 228 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 229#endif 230 231/* 232 * Unspecified 233 */ 234#define IN6_IS_ADDR_UNSPECIFIED(a) \ 235 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 236 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 237 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 238 (a)->__u6_addr.__u6_addr32[3] == 0) 239 240/* 241 * Loopback 242 */ 243#define IN6_IS_ADDR_LOOPBACK(a) \ 244 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 245 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 246 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 247 (a)->__u6_addr.__u6_addr32[3] == ntohl(1)) 248 249/* 250 * IPv4 compatible 251 */ 252#define IN6_IS_ADDR_V4COMPAT(a) \ 253 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 254 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 255 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 256 (a)->__u6_addr.__u6_addr32[3] != 0 && \ 257 (a)->__u6_addr.__u6_addr32[3] != ntohl(1)) 258 259/* 260 * Mapped 261 */ 262#define IN6_IS_ADDR_V4MAPPED(a) \ 263 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 264 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 265 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff)) 266 267/* 268 * KAME Scope Values 269 */ 270 271#ifdef _KERNEL /* XXX nonstandard */ 272#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 273#define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 274#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 275#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 276#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 277#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 278#else 279#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 280#define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 281#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 282#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 283#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 284#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 285#endif 286 287/* 288 * Unicast Scope 289 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 290 */ 291#define IN6_IS_ADDR_LINKLOCAL(a) \ 292 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 293#define IN6_IS_ADDR_SITELOCAL(a) \ 294 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 295 296/* 297 * Multicast 298 */ 299#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 300 301#ifdef _KERNEL /* XXX nonstandard */ 302#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 303#else 304#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 305#endif 306 307/* 308 * Multicast Scope 309 */ 310#ifdef _KERNEL /* refers nonstandard items */ 311#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 312 (IN6_IS_ADDR_MULTICAST(a) && \ 313 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 314#define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 317#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 320#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 323#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 326#define IN6_IS_ADDR_MC_GLOBAL(a) \ 327 (IN6_IS_ADDR_MULTICAST(a) && \ 328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 329#else 330#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 333#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 336#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 339#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 342#define IN6_IS_ADDR_MC_GLOBAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 345#endif 346 347#ifdef _KERNEL /* nonstandard */ 348/* 349 * KAME Scope 350 */ 351#define IN6_IS_SCOPE_LINKLOCAL(a) \ 352 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 353 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 354#define IN6_IS_SCOPE_EMBED(a) \ 355 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 356 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 357 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 358 359#define IFA6_IS_DEPRECATED(a) \ 360 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 361 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 362 (a)->ia6_lifetime.ia6t_pltime) 363#define IFA6_IS_INVALID(a) \ 364 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 365 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 366 (a)->ia6_lifetime.ia6t_vltime) 367#endif /* _KERNEL */ 368 369/* 370 * IP6 route structure 371 */ 372#if __BSD_VISIBLE 373struct nhop_object; 374struct route_in6 { 375 struct nhop_object *ro_nh; 376 struct llentry *ro_lle; 377 /* 378 * ro_prepend and ro_plen are only used for bpf to pass in a 379 * preformed header. They are not cacheable. 380 */ 381 char *ro_prepend; 382 uint16_t ro_plen; 383 uint16_t ro_flags; 384 uint16_t ro_mtu; /* saved ro_rt mtu */ 385 uint16_t spare; 386 struct sockaddr_in6 ro_dst; 387}; 388#endif 389 390#ifdef _KERNEL 391#define MTAG_ABI_IPV6 1444287380 /* IPv6 ABI */ 392#define IPV6_TAG_DIRECT 0 /* direct-dispatch IPv6 */ 393#endif /* _KERNEL */ 394 395/* 396 * Options for use with [gs]etsockopt at the IPV6 level. 397 * First word of comment is data type; bool is stored in int. 398 */ 399/* no hdrincl */ 400#if 0 /* the followings are relic in IPv4 and hence are disabled */ 401#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 402#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 403#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 404#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 405#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 406#endif 407#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 408#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 409#define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 410#define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 411#define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 412#define IPV6_JOIN_GROUP 12 /* ipv6_mreq; join a group membership */ 413#define IPV6_LEAVE_GROUP 13 /* ipv6_mreq; leave a group membership */ 414#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 415#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 416/* RFC2292 options */ 417#ifdef _KERNEL 418#define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 419#define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 420#define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 421#define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 422#define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 423#define IPV6_2292RTHDR 24 /* bool; routing header */ 424#define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 425#endif 426 427#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 428#define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 429#ifndef _KERNEL 430#define IPV6_BINDV6ONLY IPV6_V6ONLY 431#endif 432 433#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 434 /* 29; unused; was IPV6_FAITH */ 435#if 1 /* IPV6FIREWALL */ 436#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 437#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 438#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 439#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 440#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 441#endif 442 443/* new socket options introduced in RFC3542 */ 444#define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 445 446#define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 447#define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 448#define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 449#define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 450#define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 451#ifdef _KERNEL 452#define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 453#endif 454 455#define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 456#define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 457 458#define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 459 4 bytes int; MTU notification (cmsg) */ 460#if 0 /*obsoleted during 2292bis -> 3542*/ 461#define IPV6_REACHCONF 45 /* no data; ND reachability confirm 462 (cmsg only/not in of RFC3542) */ 463#endif 464 465/* more new socket options introduced in RFC3542 */ 466#define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 467#define IPV6_HOPLIMIT 47 /* int; send hop limit */ 468#define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 469#define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 470#define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 471#define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 472#if 0 473#define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 474 /* obsoleted by RFC3542 */ 475#endif 476 477#define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 478 479#define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 480 481#define IPV6_TCLASS 61 /* int; send traffic class value */ 482#define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 483 484#define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 485 * the source address. 486 */ 487 488#define IPV6_BINDANY 64 /* bool: allow bind to any address */ 489 /* unused; was IPV6_BIND_MULTI */ 490 /* unused; was IPV6_RSS_LISTEN_BUCKET */ 491#define IPV6_FLOWID 67 /* int; flowid of given socket */ 492#define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */ 493#define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */ 494#define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */ 495#define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */ 496 497#define IPV6_ORIGDSTADDR 72 /* bool: allow getting dstaddr /port info */ 498#define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR 499 500/* 501 * The following option is private; do not use it from user applications. 502 * It is deliberately defined to the same value as IP_MSFILTER. 503 */ 504#define IPV6_MSFILTER 74 /* struct __msfilterreq; 505 * set/get multicast source filter list. 506 */ 507 508/* The following option deals with the 802.1Q Ethernet Priority Code Point */ 509#define IPV6_VLAN_PCP 75 /* int; set/get PCP used for packet, */ 510 /* -1 use interface default */ 511 512/* to define items, should talk with KAME guys first, for *BSD compatibility */ 513 514#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 515#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 516#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 517 518/* 519 * Defaults and limits for options 520 */ 521#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 522#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 523 524/* 525 * Limit for IPv6 multicast memberships 526 */ 527#define IPV6_MAX_MEMBERSHIPS 4095 528 529/* 530 * Default resource limits for IPv6 multicast source filtering. 531 * These may be modified by sysctl. 532 */ 533#define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 534#define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 535 536/* 537 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 538 */ 539struct ipv6_mreq { 540 struct in6_addr ipv6mr_multiaddr; 541 unsigned int ipv6mr_interface; 542}; 543 544/* 545 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 546 */ 547struct in6_pktinfo { 548 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 549 unsigned int ipi6_ifindex; /* send/recv interface index */ 550}; 551 552/* 553 * Control structure for IPV6_RECVPATHMTU socket option. 554 */ 555struct ip6_mtuinfo { 556 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 557 uint32_t ip6m_mtu; 558}; 559 560/* 561 * Argument for IPV6_PORTRANGE: 562 * - which range to search when port is unspecified at bind() or connect() 563 */ 564#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 565#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 566#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 567 568#if __BSD_VISIBLE 569/* 570 * Definitions for inet6 sysctl operations. 571 * 572 * Third level is protocol number. 573 * Fourth level is desired variable within that protocol. 574 */ 575#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 576 577/* 578 * Names for IP sysctl objects 579 */ 580#define IPV6CTL_FORWARDING 1 /* act as router */ 581#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 582#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 583#ifdef notyet 584#define IPV6CTL_DEFMTU 4 /* default MTU */ 585#endif 586#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 587#define IPV6CTL_STATS 6 /* stats */ 588#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 589#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 590#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 591#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 592#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 593#define IPV6CTL_ACCEPT_RTADV 12 594 /* 13; unused; was: IPV6CTL_KEEPFAITH */ 595#define IPV6CTL_LOG_INTERVAL 14 596#define IPV6CTL_HDRNESTLIMIT 15 597#define IPV6CTL_DAD_COUNT 16 598#define IPV6CTL_AUTO_FLOWLABEL 17 599#define IPV6CTL_DEFMCASTHLIM 18 600#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 601#define IPV6CTL_KAME_VERSION 20 602#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 603#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 604#if 0 /* obsolete */ 605#define IPV6CTL_MAPPED_ADDR 23 606#endif 607#define IPV6CTL_V6ONLY 24 608/* IPV6CTL_RTEXPIRE 25 deprecated */ 609/* IPV6CTL_RTMINEXPIRE 26 deprecated */ 610/* IPV6CTL_RTMAXCACHE 27 deprecated */ 611 612#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 613#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 614#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 615#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 616#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 617#define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 618#define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 619#define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 620 621#define IPV6CTL_MAXFRAGS 41 /* max fragments */ 622#if 0 623#define IPV6CTL_IFQ 42 /* ip6intrq node */ 624#define IPV6CTL_ISATAPRTR 43 /* isatap router */ 625#endif 626#define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 627 628/* New entries should be added here from current IPV6CTL_MAXID value. */ 629/* to define items, should talk with KAME guys first, for *BSD compatibility */ 630#define IPV6CTL_STEALTH 45 631 632#define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 633#define IPV6CTL_NO_RADR 48 /* No defroute from RA */ 634#define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA 635 * receiving IF. */ 636#define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding 637 enabled */ 638#define IPV6CTL_INTRQMAXLEN 51 /* max length of IPv6 netisr queue */ 639#define IPV6CTL_INTRDQMAXLEN 52 /* max length of direct IPv6 netisr 640 * queue */ 641#define IPV6CTL_MAXFRAGSPERPACKET 53 /* Max fragments per packet */ 642#define IPV6CTL_MAXFRAGBUCKETSIZE 54 /* Max reassembly queues per bucket */ 643#define IPV6CTL_MAXID 55 644#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#define M_FRAGMENTED M_PROTO9 /* contained fragment header */ 660 661#ifdef _KERNEL 662struct cmsghdr; 663struct ip6_hdr; 664 665int in6_cksum(struct mbuf *, uint8_t, uint32_t, uint32_t); 666int in6_cksum_partial(struct mbuf *, uint8_t, uint32_t, uint32_t, uint32_t); 667int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 668 669int in6_localaddr(struct in6_addr *); 670int in6_localip(struct in6_addr *); 671bool in6_localip_fib(struct in6_addr *, uint16_t); 672int in6_ifhasaddr(struct ifnet *, struct in6_addr *); 673int in6_addrscope(const struct in6_addr *); 674char *ip6_sprintf(char *, const struct in6_addr *); 675struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 676extern void in6_if_up(struct ifnet *); 677struct sockaddr; 678 679void in6_sin6_2_sin(struct sockaddr_in *sin, 680 struct sockaddr_in6 *sin6); 681void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 682 struct sockaddr_in6 *sin6); 683void in6_sin6_2_sin_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