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 * $FreeBSD$ 64 */ 65 66 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 67 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 68 #endif 69 70 #ifndef _NETINET6_IN6_H_ 71 #define _NETINET6_IN6_H_ 72 73 /* 74 * Identification of the network protocol stack 75 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 76 * has the table of implementation/integration differences. 77 */ 78 #define __KAME__ 79 #define __KAME_VERSION "FreeBSD" 80 81 /* 82 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 83 * by the net.inet.ip.portrange sysctl tree. The following defines exist 84 * for compatibility with userland applications that need them. 85 */ 86 #if __BSD_VISIBLE 87 #define IPV6PORT_RESERVED 1024 88 #define IPV6PORT_ANONMIN 49152 89 #define IPV6PORT_ANONMAX 65535 90 #define IPV6PORT_RESERVEDMIN 600 91 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 92 #endif 93 94 /* 95 * IPv6 address 96 */ 97 struct in6_addr { 98 union { 99 uint8_t __u6_addr8[16]; 100 uint16_t __u6_addr16[8]; 101 uint32_t __u6_addr32[4]; 102 } __u6_addr; /* 128-bit IP6 address */ 103 }; 104 105 #define s6_addr __u6_addr.__u6_addr8 106 #if defined(_KERNEL) || defined(_STANDALONE) /* XXX nonstandard */ 107 #define s6_addr8 __u6_addr.__u6_addr8 108 #define s6_addr16 __u6_addr.__u6_addr16 109 #define s6_addr32 __u6_addr.__u6_addr32 110 #endif 111 112 #define INET6_ADDRSTRLEN 46 113 114 /* 115 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 116 */ 117 118 /* 119 * Socket address for IPv6 120 */ 121 #if __BSD_VISIBLE 122 #define SIN6_LEN 123 #endif 124 125 struct sockaddr_in6 { 126 uint8_t sin6_len; /* length of this struct */ 127 sa_family_t sin6_family; /* AF_INET6 */ 128 in_port_t sin6_port; /* Transport layer port # */ 129 uint32_t sin6_flowinfo; /* IP6 flow information */ 130 struct in6_addr sin6_addr; /* IP6 address */ 131 uint32_t sin6_scope_id; /* scope zone index */ 132 }; 133 134 /* 135 * Local definition for masks 136 */ 137 #ifdef _KERNEL /* XXX nonstandard */ 138 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 139 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 140 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 141 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 142 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 143 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 144 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 145 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 146 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 147 #endif 148 149 #ifdef _KERNEL 150 extern const struct sockaddr_in6 sa6_any; 151 152 extern const struct in6_addr in6mask0; 153 extern const struct in6_addr in6mask32; 154 extern const struct in6_addr in6mask64; 155 extern const struct in6_addr in6mask96; 156 extern const struct in6_addr in6mask128; 157 #endif /* _KERNEL */ 158 159 /* 160 * Macros started with IPV6_ADDR is KAME local 161 */ 162 #ifdef _KERNEL /* XXX nonstandard */ 163 #if _BYTE_ORDER == _BIG_ENDIAN 164 #define IPV6_ADDR_INT32_ONE 1 165 #define IPV6_ADDR_INT32_TWO 2 166 #define IPV6_ADDR_INT32_MNL 0xff010000 167 #define IPV6_ADDR_INT32_MLL 0xff020000 168 #define IPV6_ADDR_INT32_SMP 0x0000ffff 169 #define IPV6_ADDR_INT16_ULL 0xfe80 170 #define IPV6_ADDR_INT16_USL 0xfec0 171 #define IPV6_ADDR_INT16_MLL 0xff02 172 #elif _BYTE_ORDER == _LITTLE_ENDIAN 173 #define IPV6_ADDR_INT32_ONE 0x01000000 174 #define IPV6_ADDR_INT32_TWO 0x02000000 175 #define IPV6_ADDR_INT32_MNL 0x000001ff 176 #define IPV6_ADDR_INT32_MLL 0x000002ff 177 #define IPV6_ADDR_INT32_SMP 0xffff0000 178 #define IPV6_ADDR_INT16_ULL 0x80fe 179 #define IPV6_ADDR_INT16_USL 0xc0fe 180 #define IPV6_ADDR_INT16_MLL 0x02ff 181 #endif 182 #endif 183 184 /* 185 * Definition of some useful macros to handle IP6 addresses 186 */ 187 #if __BSD_VISIBLE 188 #define IN6ADDR_ANY_INIT \ 189 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 190 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 191 #define IN6ADDR_LOOPBACK_INIT \ 192 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 193 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 194 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 195 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 197 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 198 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 199 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 200 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 201 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 203 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 204 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 206 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 207 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 209 #endif 210 211 extern const struct in6_addr in6addr_any; 212 extern const struct in6_addr in6addr_loopback; 213 #if __BSD_VISIBLE 214 extern const struct in6_addr in6addr_nodelocal_allnodes; 215 extern const struct in6_addr in6addr_linklocal_allnodes; 216 extern const struct in6_addr in6addr_linklocal_allrouters; 217 extern const struct in6_addr in6addr_linklocal_allv2routers; 218 #endif 219 220 /* 221 * Equality 222 */ 223 #if __BSD_VISIBLE 224 #define IN6_ARE_ADDR_EQUAL(a, b) \ 225 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 226 #endif 227 228 /* 229 * Unspecified 230 */ 231 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 232 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 233 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 234 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 235 (a)->__u6_addr.__u6_addr32[3] == 0) 236 237 /* 238 * Loopback 239 */ 240 #define IN6_IS_ADDR_LOOPBACK(a) \ 241 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 242 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 243 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 244 (a)->__u6_addr.__u6_addr32[3] == ntohl(1)) 245 246 /* 247 * IPv4 compatible 248 */ 249 #define IN6_IS_ADDR_V4COMPAT(a) \ 250 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 251 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 252 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 253 (a)->__u6_addr.__u6_addr32[3] != 0 && \ 254 (a)->__u6_addr.__u6_addr32[3] != ntohl(1)) 255 256 /* 257 * Mapped 258 */ 259 #define IN6_IS_ADDR_V4MAPPED(a) \ 260 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 261 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 262 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff)) 263 264 /* 265 * KAME Scope Values 266 */ 267 268 #ifdef _KERNEL /* XXX nonstandard */ 269 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 270 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 271 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 272 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 273 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 274 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 275 #else 276 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 277 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 278 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 279 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 280 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 281 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 282 #endif 283 284 /* 285 * Unicast Scope 286 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 287 */ 288 #define IN6_IS_ADDR_LINKLOCAL(a) \ 289 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 290 #define IN6_IS_ADDR_SITELOCAL(a) \ 291 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 292 293 /* 294 * Multicast 295 */ 296 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 297 298 #ifdef _KERNEL /* XXX nonstandard */ 299 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 300 #else 301 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 302 #endif 303 304 /* 305 * Multicast Scope 306 */ 307 #ifdef _KERNEL /* refers nonstandard items */ 308 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 309 (IN6_IS_ADDR_MULTICAST(a) && \ 310 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 311 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 312 (IN6_IS_ADDR_MULTICAST(a) && \ 313 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 314 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 317 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 320 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 323 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 326 #else 327 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 330 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 333 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 336 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 339 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 342 #endif 343 344 #ifdef _KERNEL /* nonstandard */ 345 /* 346 * KAME Scope 347 */ 348 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 349 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 350 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 351 #define IN6_IS_SCOPE_EMBED(a) \ 352 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 353 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 354 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 355 356 #define IFA6_IS_DEPRECATED(a) \ 357 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 358 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 359 (a)->ia6_lifetime.ia6t_pltime) 360 #define IFA6_IS_INVALID(a) \ 361 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 362 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 363 (a)->ia6_lifetime.ia6t_vltime) 364 #endif /* _KERNEL */ 365 366 /* 367 * IP6 route structure 368 */ 369 #if __BSD_VISIBLE 370 struct nhop_object; 371 struct route_in6 { 372 struct nhop_object *ro_nh; 373 struct llentry *ro_lle; 374 /* 375 * ro_prepend and ro_plen are only used for bpf to pass in a 376 * preformed header. They are not cacheable. 377 */ 378 char *ro_prepend; 379 uint16_t ro_plen; 380 uint16_t ro_flags; 381 uint16_t ro_mtu; /* saved ro_rt mtu */ 382 uint16_t spare; 383 struct sockaddr_in6 ro_dst; 384 }; 385 #endif 386 387 #ifdef _KERNEL 388 #define MTAG_ABI_IPV6 1444287380 /* IPv6 ABI */ 389 #define IPV6_TAG_DIRECT 0 /* direct-dispatch IPv6 */ 390 #endif /* _KERNEL */ 391 392 /* 393 * Options for use with [gs]etsockopt at the IPV6 level. 394 * First word of comment is data type; bool is stored in int. 395 */ 396 /* no hdrincl */ 397 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 398 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 399 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 400 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 401 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 402 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 403 #endif 404 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 405 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 406 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 407 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 408 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 409 #define IPV6_JOIN_GROUP 12 /* ipv6_mreq; join a group membership */ 410 #define IPV6_LEAVE_GROUP 13 /* ipv6_mreq; leave a group membership */ 411 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 412 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 413 /* RFC2292 options */ 414 #ifdef _KERNEL 415 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 416 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 417 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 418 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 419 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 420 #define IPV6_2292RTHDR 24 /* bool; routing header */ 421 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 422 #endif 423 424 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 425 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 426 #ifndef _KERNEL 427 #define IPV6_BINDV6ONLY IPV6_V6ONLY 428 #endif 429 430 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 431 /* 29; unused; was IPV6_FAITH */ 432 #if 1 /* IPV6FIREWALL */ 433 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 434 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 435 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 436 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 437 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 438 #endif 439 440 /* new socket options introduced in RFC3542 */ 441 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 442 443 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 444 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 445 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 446 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 447 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 448 #ifdef _KERNEL 449 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 450 #endif 451 452 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 453 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 454 455 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 456 4 bytes int; MTU notification (cmsg) */ 457 #if 0 /*obsoleted during 2292bis -> 3542*/ 458 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 459 (cmsg only/not in of RFC3542) */ 460 #endif 461 462 /* more new socket options introduced in RFC3542 */ 463 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 464 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 465 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 466 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 467 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 468 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 469 #if 0 470 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 471 /* obsoleted by RFC3542 */ 472 #endif 473 474 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 475 476 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 477 478 #define IPV6_TCLASS 61 /* int; send traffic class value */ 479 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 480 481 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 482 * the source address. 483 */ 484 485 #define IPV6_BINDANY 64 /* bool: allow bind to any address */ 486 /* unused; was IPV6_BIND_MULTI */ 487 /* unused; was IPV6_RSS_LISTEN_BUCKET */ 488 #define IPV6_FLOWID 67 /* int; flowid of given socket */ 489 #define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */ 490 #define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */ 491 #define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */ 492 #define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */ 493 494 #define IPV6_ORIGDSTADDR 72 /* bool: allow getting dstaddr /port info */ 495 #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR 496 497 /* 498 * The following option is private; do not use it from user applications. 499 * It is deliberately defined to the same value as IP_MSFILTER. 500 */ 501 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 502 * set/get multicast source filter list. 503 */ 504 505 /* The following option deals with the 802.1Q Ethernet Priority Code Point */ 506 #define IPV6_VLAN_PCP 75 /* int; set/get PCP used for packet, */ 507 /* -1 use interface default */ 508 509 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 510 511 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 512 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 513 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 514 515 /* 516 * Defaults and limits for options 517 */ 518 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 519 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 520 521 /* 522 * Limit for IPv6 multicast memberships 523 */ 524 #define IPV6_MAX_MEMBERSHIPS 4095 525 526 /* 527 * Default resource limits for IPv6 multicast source filtering. 528 * These may be modified by sysctl. 529 */ 530 #define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 531 #define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 532 533 /* 534 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 535 */ 536 struct ipv6_mreq { 537 struct in6_addr ipv6mr_multiaddr; 538 unsigned int ipv6mr_interface; 539 }; 540 541 /* 542 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 543 */ 544 struct in6_pktinfo { 545 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 546 unsigned int ipi6_ifindex; /* send/recv interface index */ 547 }; 548 549 /* 550 * Control structure for IPV6_RECVPATHMTU socket option. 551 */ 552 struct ip6_mtuinfo { 553 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 554 uint32_t ip6m_mtu; 555 }; 556 557 /* 558 * Argument for IPV6_PORTRANGE: 559 * - which range to search when port is unspecified at bind() or connect() 560 */ 561 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 562 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 563 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 564 565 #if __BSD_VISIBLE 566 /* 567 * Definitions for inet6 sysctl operations. 568 * 569 * Third level is protocol number. 570 * Fourth level is desired variable within that protocol. 571 */ 572 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 573 574 /* 575 * Names for IP sysctl objects 576 */ 577 #define IPV6CTL_FORWARDING 1 /* act as router */ 578 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 579 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 580 #ifdef notyet 581 #define IPV6CTL_DEFMTU 4 /* default MTU */ 582 #endif 583 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 584 #define IPV6CTL_STATS 6 /* stats */ 585 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 586 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 587 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 588 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 589 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 590 #define IPV6CTL_ACCEPT_RTADV 12 591 /* 13; unused; was: IPV6CTL_KEEPFAITH */ 592 #define IPV6CTL_LOG_INTERVAL 14 593 #define IPV6CTL_HDRNESTLIMIT 15 594 #define IPV6CTL_DAD_COUNT 16 595 #define IPV6CTL_AUTO_FLOWLABEL 17 596 #define IPV6CTL_DEFMCASTHLIM 18 597 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 598 #define IPV6CTL_KAME_VERSION 20 599 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 600 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 601 #if 0 /* obsolete */ 602 #define IPV6CTL_MAPPED_ADDR 23 603 #endif 604 #define IPV6CTL_V6ONLY 24 605 /* IPV6CTL_RTEXPIRE 25 deprecated */ 606 /* IPV6CTL_RTMINEXPIRE 26 deprecated */ 607 /* IPV6CTL_RTMAXCACHE 27 deprecated */ 608 609 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 610 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 611 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 612 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 613 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 614 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 615 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 616 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 617 618 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 619 #if 0 620 #define IPV6CTL_IFQ 42 /* ip6intrq node */ 621 #define IPV6CTL_ISATAPRTR 43 /* isatap router */ 622 #endif 623 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 624 625 /* New entries should be added here from current IPV6CTL_MAXID value. */ 626 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 627 #define IPV6CTL_STEALTH 45 628 629 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 630 #define IPV6CTL_NO_RADR 48 /* No defroute from RA */ 631 #define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA 632 * receiving IF. */ 633 #define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding 634 enabled */ 635 #define IPV6CTL_INTRQMAXLEN 51 /* max length of IPv6 netisr queue */ 636 #define IPV6CTL_INTRDQMAXLEN 52 /* max length of direct IPv6 netisr 637 * queue */ 638 #define IPV6CTL_MAXFRAGSPERPACKET 53 /* Max fragments per packet */ 639 #define IPV6CTL_MAXFRAGBUCKETSIZE 54 /* Max reassembly queues per bucket */ 640 #define IPV6CTL_MAXID 55 641 #endif /* __BSD_VISIBLE */ 642 643 /* 644 * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/, 645 * the protocol specific mbuf flags are shared between them. 646 */ 647 #define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */ 648 #define M_IP6_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 649 #define M_IP_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 650 #define M_SKIP_FIREWALL M_PROTO3 /* skip firewall processing */ 651 #define M_AUTHIPHDR M_PROTO4 652 #define M_DECRYPTED M_PROTO5 653 #define M_LOOP M_PROTO6 654 #define M_AUTHIPDGM M_PROTO7 655 #define M_RTALERT_MLD M_PROTO8 656 #define M_FRAGMENTED M_PROTO9 /* contained fragment header */ 657 658 #ifdef _KERNEL 659 struct cmsghdr; 660 struct ip6_hdr; 661 662 int in6_cksum(struct mbuf *, uint8_t, uint32_t, uint32_t); 663 int in6_cksum_partial(struct mbuf *, uint8_t, uint32_t, uint32_t, uint32_t); 664 int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 665 666 int in6_localaddr(struct in6_addr *); 667 int in6_localip(struct in6_addr *); 668 bool in6_localip_fib(struct in6_addr *, uint16_t); 669 int in6_ifhasaddr(struct ifnet *, struct in6_addr *); 670 int in6_addrscope(const struct in6_addr *); 671 char *ip6_sprintf(char *, const struct in6_addr *); 672 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 673 extern void in6_if_up(struct ifnet *); 674 struct sockaddr; 675 676 void in6_sin6_2_sin(struct sockaddr_in *sin, 677 struct sockaddr_in6 *sin6); 678 void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 679 struct sockaddr_in6 *sin6); 680 void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 681 void in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam); 682 extern void addrsel_policy_init(void); 683 684 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 685 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 686 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 687 688 #endif /* _KERNEL */ 689 690 #ifndef _SIZE_T_DECLARED 691 typedef __size_t size_t; 692 #define _SIZE_T_DECLARED 693 #endif 694 695 #ifndef _SOCKLEN_T_DECLARED 696 typedef __socklen_t socklen_t; 697 #define _SOCKLEN_T_DECLARED 698 #endif 699 700 #if __BSD_VISIBLE 701 702 __BEGIN_DECLS 703 struct cmsghdr; 704 705 extern int inet6_option_space(int); 706 extern int inet6_option_init(void *, struct cmsghdr **, int); 707 extern int inet6_option_append(struct cmsghdr *, const uint8_t *, 708 int, int); 709 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 710 extern int inet6_option_next(const struct cmsghdr *, uint8_t **); 711 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int); 712 713 extern size_t inet6_rthdr_space(int, int); 714 extern struct cmsghdr *inet6_rthdr_init(void *, int); 715 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 716 unsigned int); 717 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 718 #if 0 /* not implemented yet */ 719 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 720 #endif 721 extern int inet6_rthdr_segments(const struct cmsghdr *); 722 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 723 extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 724 725 extern int inet6_opt_init(void *, socklen_t); 726 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t, 727 uint8_t, void **); 728 extern int inet6_opt_finish(void *, socklen_t, int); 729 extern int inet6_opt_set_val(void *, int, void *, socklen_t); 730 731 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *, 732 void **); 733 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *, 734 void **); 735 extern int inet6_opt_get_val(void *, int, void *, socklen_t); 736 extern socklen_t inet6_rth_space(int, int); 737 extern void *inet6_rth_init(void *, socklen_t, int, int); 738 extern int inet6_rth_add(void *, const struct in6_addr *); 739 extern int inet6_rth_reverse(const void *, void *); 740 extern int inet6_rth_segments(const void *); 741 extern struct in6_addr *inet6_rth_getaddr(const void *, int); 742 __END_DECLS 743 744 #endif /* __BSD_VISIBLE */ 745 746 #endif /* !_NETINET6_IN6_H_ */ 747