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 */ 94 struct 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 127 128 struct 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 153 extern const struct sockaddr_in6 sa6_any; 154 155 extern const struct in6_addr in6mask0; 156 extern const struct in6_addr in6mask32; 157 extern const struct in6_addr in6mask64; 158 extern const struct in6_addr in6mask96; 159 extern 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 213 214 extern const struct in6_addr in6addr_any; 215 extern const struct in6_addr in6addr_loopback; 216 #if __BSD_VISIBLE 217 extern const struct in6_addr in6addr_nodelocal_allnodes; 218 extern const struct in6_addr in6addr_linklocal_allnodes; 219 extern const struct in6_addr in6addr_linklocal_allrouters; 220 extern 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 373 struct nhop_object; 374 struct 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 */ 539 struct 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 */ 547 struct 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 */ 555 struct 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 662 struct cmsghdr; 663 struct ip6_hdr; 664 665 int in6_cksum(struct mbuf *, uint8_t, uint32_t, uint32_t); 666 int in6_cksum_partial(struct mbuf *, uint8_t, uint32_t, uint32_t, uint32_t); 667 int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 668 669 int in6_localaddr(struct in6_addr *); 670 int in6_localip(struct in6_addr *); 671 bool in6_localip_fib(struct in6_addr *, uint16_t); 672 int in6_ifhasaddr(struct ifnet *, struct in6_addr *); 673 int in6_addrscope(const struct in6_addr *); 674 char *ip6_sprintf(char *, const struct in6_addr *); 675 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 676 extern void in6_if_up(struct ifnet *); 677 struct sockaddr; 678 679 void in6_sin6_2_sin(struct sockaddr_in *sin, 680 const struct sockaddr_in6 *sin6); 681 void in6_sin_2_v4mapsin6(const struct sockaddr_in *sin, 682 struct sockaddr_in6 *sin6); 683 void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 684 extern 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 693 typedef __size_t size_t; 694 #define _SIZE_T_DECLARED 695 #endif 696 697 #ifndef _SOCKLEN_T_DECLARED 698 typedef __socklen_t socklen_t; 699 #define _SOCKLEN_T_DECLARED 700 #endif 701 702 #if __BSD_VISIBLE 703 704 __BEGIN_DECLS 705 struct cmsghdr; 706 707 extern int inet6_option_space(int); 708 extern int inet6_option_init(void *, struct cmsghdr **, int); 709 extern int inet6_option_append(struct cmsghdr *, const uint8_t *, 710 int, int); 711 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 712 extern int inet6_option_next(const struct cmsghdr *, uint8_t **); 713 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int); 714 715 extern size_t inet6_rthdr_space(int, int); 716 extern struct cmsghdr *inet6_rthdr_init(void *, int); 717 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 718 unsigned int); 719 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 720 #if 0 /* not implemented yet */ 721 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 722 #endif 723 extern int inet6_rthdr_segments(const struct cmsghdr *); 724 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 725 extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 726 727 extern int inet6_opt_init(void *, socklen_t); 728 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t, 729 uint8_t, void **); 730 extern int inet6_opt_finish(void *, socklen_t, int); 731 extern int inet6_opt_set_val(void *, int, void *, socklen_t); 732 733 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *, 734 void **); 735 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *, 736 void **); 737 extern int inet6_opt_get_val(void *, int, void *, socklen_t); 738 extern socklen_t inet6_rth_space(int, int); 739 extern void *inet6_rth_init(void *, socklen_t, int, int); 740 extern int inet6_rth_add(void *, const struct in6_addr *); 741 extern int inet6_rth_reverse(const void *, void *); 742 extern int inet6_rth_segments(const void *); 743 extern struct in6_addr *inet6_rth_getaddr(const void *, int); 744 __END_DECLS 745 746 #endif /* __BSD_VISIBLE */ 747 748 #endif /* !_NETINET6_IN6_H_ */ 749