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 * @(#)in.h 8.3 (Berkeley) 1/3/94 63 */ 64 65 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 66 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 67 #endif 68 69 #ifndef _NETINET6_IN6_H_ 70 #define _NETINET6_IN6_H_ 71 72 /* 73 * Identification of the network protocol stack 74 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 75 * has the table of implementation/integration differences. 76 */ 77 #define __KAME__ 78 #define __KAME_VERSION "FreeBSD" 79 80 /* 81 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 82 * by the net.inet.ip.portrange sysctl tree. The following defines exist 83 * for compatibility with userland applications that need them. 84 */ 85 #if __BSD_VISIBLE 86 #define IPV6PORT_RESERVED 1024 87 #define IPV6PORT_ANONMIN 49152 88 #define IPV6PORT_ANONMAX 65535 89 #define IPV6PORT_RESERVEDMIN 600 90 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 91 #endif 92 93 /* 94 * IPv6 address 95 */ 96 struct in6_addr { 97 union { 98 uint8_t __u6_addr8[16]; 99 uint16_t __u6_addr16[8]; 100 uint32_t __u6_addr32[4]; 101 } __u6_addr; /* 128-bit IP6 address */ 102 }; 103 104 #define s6_addr __u6_addr.__u6_addr8 105 #if __BSD_VISIBLE 106 /* 107 * s6_addr is the only in6_addr element specified in RFCs 2553 and 3493, 108 * also in POSIX 1003.1-2017. The following three definitions were not 109 * exposed to user programs in FreeBSD before 14.1, or in other BSDs, 110 * and are thus less portable than s6_addr. 111 */ 112 #define s6_addr8 __u6_addr.__u6_addr8 113 #define s6_addr16 __u6_addr.__u6_addr16 114 #define s6_addr32 __u6_addr.__u6_addr32 115 #endif 116 117 #define INET6_ADDRSTRLEN 46 118 119 /* 120 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 121 */ 122 123 /* 124 * Socket address for IPv6 125 */ 126 #if __BSD_VISIBLE 127 #define SIN6_LEN 128 #endif 129 130 struct sockaddr_in6 { 131 uint8_t sin6_len; /* length of this struct */ 132 sa_family_t sin6_family; /* AF_INET6 */ 133 in_port_t sin6_port; /* Transport layer port # */ 134 uint32_t sin6_flowinfo; /* IP6 flow information */ 135 struct in6_addr sin6_addr; /* IP6 address */ 136 uint32_t sin6_scope_id; /* scope zone index */ 137 }; 138 139 /* 140 * Local definition for masks 141 */ 142 #ifdef _KERNEL /* XXX nonstandard */ 143 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 144 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 145 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 146 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 147 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 148 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 149 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 150 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 151 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 152 #endif 153 154 #ifdef _KERNEL 155 extern const struct sockaddr_in6 sa6_any; 156 157 extern const struct in6_addr in6mask0; 158 extern const struct in6_addr in6mask32; 159 extern const struct in6_addr in6mask64; 160 extern const struct in6_addr in6mask96; 161 extern const struct in6_addr in6mask128; 162 #endif /* _KERNEL */ 163 164 /* 165 * Macros started with IPV6_ADDR is KAME local 166 */ 167 #ifdef _KERNEL /* XXX nonstandard */ 168 #if _BYTE_ORDER == _BIG_ENDIAN 169 #define IPV6_ADDR_INT32_ONE 1 170 #define IPV6_ADDR_INT32_TWO 2 171 #define IPV6_ADDR_INT32_MNL 0xff010000 172 #define IPV6_ADDR_INT32_MLL 0xff020000 173 #define IPV6_ADDR_INT32_SMP 0x0000ffff 174 #define IPV6_ADDR_INT16_ULL 0xfe80 175 #define IPV6_ADDR_INT16_USL 0xfec0 176 #define IPV6_ADDR_INT16_MLL 0xff02 177 #elif _BYTE_ORDER == _LITTLE_ENDIAN 178 #define IPV6_ADDR_INT32_ONE 0x01000000 179 #define IPV6_ADDR_INT32_TWO 0x02000000 180 #define IPV6_ADDR_INT32_MNL 0x000001ff 181 #define IPV6_ADDR_INT32_MLL 0x000002ff 182 #define IPV6_ADDR_INT32_SMP 0xffff0000 183 #define IPV6_ADDR_INT16_ULL 0x80fe 184 #define IPV6_ADDR_INT16_USL 0xc0fe 185 #define IPV6_ADDR_INT16_MLL 0x02ff 186 #endif 187 #endif 188 189 /* 190 * Definition of some useful macros to handle IP6 addresses 191 */ 192 #if __BSD_VISIBLE 193 #define IN6ADDR_ANY_INIT \ 194 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 195 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 196 #define IN6ADDR_LOOPBACK_INIT \ 197 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 198 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 199 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 200 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 201 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 202 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 203 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 205 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 206 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 207 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 208 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 209 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 211 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 212 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 213 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 214 #endif 215 216 extern const struct in6_addr in6addr_any; 217 extern const struct in6_addr in6addr_loopback; 218 #if __BSD_VISIBLE 219 extern const struct in6_addr in6addr_nodelocal_allnodes; 220 extern const struct in6_addr in6addr_linklocal_allnodes; 221 extern const struct in6_addr in6addr_linklocal_allrouters; 222 extern const struct in6_addr in6addr_linklocal_allv2routers; 223 #endif 224 225 /* 226 * Equality 227 */ 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 232 233 /* 234 * Unspecified 235 */ 236 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 237 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 238 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 239 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 240 (a)->__u6_addr.__u6_addr32[3] == 0) 241 242 /* 243 * Loopback 244 */ 245 #define IN6_IS_ADDR_LOOPBACK(a) \ 246 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 247 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 248 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 249 (a)->__u6_addr.__u6_addr32[3] == ntohl(1)) 250 251 /* 252 * IPv4 compatible 253 */ 254 #define IN6_IS_ADDR_V4COMPAT(a) \ 255 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 256 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 257 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 258 (a)->__u6_addr.__u6_addr32[3] != 0 && \ 259 (a)->__u6_addr.__u6_addr32[3] != ntohl(1)) 260 261 /* 262 * Mapped 263 */ 264 #define IN6_IS_ADDR_V4MAPPED(a) \ 265 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 266 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 267 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff)) 268 269 /* 270 * KAME Scope Values 271 */ 272 273 #ifdef _KERNEL /* XXX nonstandard */ 274 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 275 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 276 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 277 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 278 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 279 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 280 #else 281 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 282 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 283 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 284 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 285 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 286 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 287 #endif 288 289 /* 290 * Unicast Scope 291 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 292 */ 293 #define IN6_IS_ADDR_LINKLOCAL(a) \ 294 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 295 #define IN6_IS_ADDR_SITELOCAL(a) \ 296 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 297 298 /* 299 * Multicast 300 */ 301 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 302 303 #ifdef _KERNEL /* XXX nonstandard */ 304 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 305 #else 306 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 307 #endif 308 309 /* 310 * Multicast Scope 311 */ 312 #ifdef _KERNEL /* refers nonstandard items */ 313 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 314 (IN6_IS_ADDR_MULTICAST(a) && \ 315 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 316 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 317 (IN6_IS_ADDR_MULTICAST(a) && \ 318 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 319 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 320 (IN6_IS_ADDR_MULTICAST(a) && \ 321 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 322 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 323 (IN6_IS_ADDR_MULTICAST(a) && \ 324 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 325 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 326 (IN6_IS_ADDR_MULTICAST(a) && \ 327 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 328 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 329 (IN6_IS_ADDR_MULTICAST(a) && \ 330 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 331 #else 332 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 333 (IN6_IS_ADDR_MULTICAST(a) && \ 334 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 335 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 336 (IN6_IS_ADDR_MULTICAST(a) && \ 337 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 338 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 341 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 342 (IN6_IS_ADDR_MULTICAST(a) && \ 343 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 344 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 347 #endif 348 349 #ifdef _KERNEL /* nonstandard */ 350 /* 351 * KAME Scope 352 */ 353 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 354 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 355 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 356 #define IN6_IS_SCOPE_EMBED(a) \ 357 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 358 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 359 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 360 361 #define IFA6_IS_DEPRECATED(a) \ 362 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 363 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 364 (a)->ia6_lifetime.ia6t_pltime) 365 #define IFA6_IS_INVALID(a) \ 366 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 367 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 368 (a)->ia6_lifetime.ia6t_vltime) 369 #endif /* _KERNEL */ 370 371 /* 372 * IP6 route structure 373 */ 374 #if __BSD_VISIBLE 375 struct nhop_object; 376 struct route_in6 { 377 struct nhop_object *ro_nh; 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 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 436 /* 29; unused; was IPV6_FAITH */ 437 #if 1 /* IPV6FIREWALL */ 438 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 439 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 440 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 441 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 442 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 443 #endif 444 445 /* new socket options introduced in RFC3542 */ 446 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 447 448 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 449 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 450 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 451 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 452 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 453 #ifdef _KERNEL 454 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 455 #endif 456 457 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 458 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 459 460 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 461 4 bytes int; MTU notification (cmsg) */ 462 #if 0 /*obsoleted during 2292bis -> 3542*/ 463 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 464 (cmsg only/not in of RFC3542) */ 465 #endif 466 467 /* more new socket options introduced in RFC3542 */ 468 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 469 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 470 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 471 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 472 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 473 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 474 #if 0 475 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 476 /* obsoleted by RFC3542 */ 477 #endif 478 479 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 480 481 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 482 483 #define IPV6_TCLASS 61 /* int; send traffic class value */ 484 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 485 486 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 487 * the source address. 488 */ 489 490 #define IPV6_BINDANY 64 /* bool: allow bind to any address */ 491 /* unused; was IPV6_BIND_MULTI */ 492 /* unused; was IPV6_RSS_LISTEN_BUCKET */ 493 #define IPV6_FLOWID 67 /* int; flowid of given socket */ 494 #define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */ 495 #define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */ 496 #define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */ 497 #define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */ 498 499 #define IPV6_ORIGDSTADDR 72 /* bool: allow getting dstaddr /port info */ 500 #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR 501 502 /* 503 * The following option is private; do not use it from user applications. 504 * It is deliberately defined to the same value as IP_MSFILTER. 505 */ 506 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 507 * set/get multicast source filter list. 508 */ 509 510 /* The following option deals with the 802.1Q Ethernet Priority Code Point */ 511 #define IPV6_VLAN_PCP 75 /* int; set/get PCP used for packet, */ 512 /* -1 use interface default */ 513 514 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 515 516 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 517 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 518 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 519 520 /* 521 * Defaults and limits for options 522 */ 523 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 524 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 525 526 /* 527 * Limit for IPv6 multicast memberships 528 */ 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 */ 541 struct 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 */ 549 struct 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 */ 557 struct 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_MAXFRAGSPERPACKET 53 /* Max fragments per packet */ 644 #define IPV6CTL_MAXFRAGBUCKETSIZE 54 /* Max reassembly queues per bucket */ 645 #define IPV6CTL_MAXID 55 646 #endif /* __BSD_VISIBLE */ 647 648 /* 649 * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/, 650 * the protocol specific mbuf flags are shared between them. 651 */ 652 #define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */ 653 #define M_IP6_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 654 #define M_IP_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 655 #define M_SKIP_FIREWALL M_PROTO3 /* skip firewall processing */ 656 #define M_AUTHIPHDR M_PROTO4 657 #define M_DECRYPTED M_PROTO5 658 #define M_LOOP M_PROTO6 659 #define M_AUTHIPDGM M_PROTO7 660 #define M_RTALERT_MLD M_PROTO8 661 #define M_FRAGMENTED M_PROTO9 /* contained fragment header */ 662 663 #ifdef _KERNEL 664 struct cmsghdr; 665 struct ip6_hdr; 666 667 int in6_cksum(struct mbuf *, uint8_t, uint32_t, uint32_t); 668 int in6_cksum_partial(struct mbuf *, uint8_t, uint32_t, uint32_t, uint32_t); 669 int in6_cksum_partial_l2(struct mbuf *m, uint8_t nxt, uint32_t off_l3, 670 uint32_t off_l4, uint32_t len, uint32_t cov); 671 int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 672 673 int in6_localaddr(struct in6_addr *); 674 int in6_localip(struct in6_addr *); 675 bool in6_localip_fib(struct in6_addr *, uint16_t); 676 int in6_ifhasaddr(struct ifnet *, struct in6_addr *); 677 int in6_addrscope(const struct in6_addr *); 678 char *ip6_sprintf(char *, const struct in6_addr *); 679 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 680 extern void in6_if_up(struct ifnet *); 681 struct sockaddr; 682 683 void in6_sin6_2_sin(struct sockaddr_in *sin, 684 const struct sockaddr_in6 *sin6); 685 void in6_sin_2_v4mapsin6(const struct sockaddr_in *sin, 686 struct sockaddr_in6 *sin6); 687 void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 688 void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam); 689 extern void addrsel_policy_init(void); 690 691 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 692 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 693 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 694 695 #endif /* _KERNEL */ 696 697 #ifndef _SIZE_T_DECLARED 698 typedef __size_t size_t; 699 #define _SIZE_T_DECLARED 700 #endif 701 702 #ifndef _SOCKLEN_T_DECLARED 703 typedef __socklen_t socklen_t; 704 #define _SOCKLEN_T_DECLARED 705 #endif 706 707 #if __BSD_VISIBLE 708 709 __BEGIN_DECLS 710 struct cmsghdr; 711 712 extern int inet6_option_space(int); 713 extern int inet6_option_init(void *, struct cmsghdr **, int); 714 extern int inet6_option_append(struct cmsghdr *, const uint8_t *, 715 int, int); 716 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 717 extern int inet6_option_next(const struct cmsghdr *, uint8_t **); 718 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int); 719 720 extern size_t inet6_rthdr_space(int, int); 721 extern struct cmsghdr *inet6_rthdr_init(void *, int); 722 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 723 unsigned int); 724 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 725 #if 0 /* not implemented yet */ 726 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 727 #endif 728 extern int inet6_rthdr_segments(const struct cmsghdr *); 729 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 730 extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 731 732 extern int inet6_opt_init(void *, socklen_t); 733 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t, 734 uint8_t, void **); 735 extern int inet6_opt_finish(void *, socklen_t, int); 736 extern int inet6_opt_set_val(void *, int, void *, socklen_t); 737 738 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *, 739 void **); 740 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *, 741 void **); 742 extern int inet6_opt_get_val(void *, int, void *, socklen_t); 743 extern socklen_t inet6_rth_space(int, int); 744 extern void *inet6_rth_init(void *, socklen_t, int, int); 745 extern int inet6_rth_add(void *, const struct in6_addr *); 746 extern int inet6_rth_reverse(const void *, void *); 747 extern int inet6_rth_segments(const void *); 748 extern struct in6_addr *inet6_rth_getaddr(const void *, int); 749 __END_DECLS 750 751 #endif /* __BSD_VISIBLE */ 752 753 #endif /* !_NETINET6_IN6_H_ */ 754