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