1 /*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ 30 */ 31 32 /*- 33 * Copyright (c) 1982, 1986, 1990, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in.h 8.3 (Berkeley) 1/3/94 61 * $FreeBSD$ 62 */ 63 64 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 65 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 66 #endif 67 68 #ifndef _NETINET6_IN6_H_ 69 #define _NETINET6_IN6_H_ 70 71 /* 72 * Identification of the network protocol stack 73 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 74 * has the table of implementation/integration differences. 75 */ 76 #define __KAME__ 77 #define __KAME_VERSION "FreeBSD" 78 79 /* 80 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 81 * by the net.inet.ip.portrange sysctl tree. The following defines exist 82 * for compatibility with userland applications that need them. 83 */ 84 #if __BSD_VISIBLE 85 #define IPV6PORT_RESERVED 1024 86 #define IPV6PORT_ANONMIN 49152 87 #define IPV6PORT_ANONMAX 65535 88 #define IPV6PORT_RESERVEDMIN 600 89 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 90 #endif 91 92 /* 93 * IPv6 address 94 */ 95 struct in6_addr { 96 union { 97 uint8_t __u6_addr8[16]; 98 uint16_t __u6_addr16[8]; 99 uint32_t __u6_addr32[4]; 100 } __u6_addr; /* 128-bit IP6 address */ 101 }; 102 103 #define s6_addr __u6_addr.__u6_addr8 104 #ifdef _KERNEL /* XXX nonstandard */ 105 #define s6_addr8 __u6_addr.__u6_addr8 106 #define s6_addr16 __u6_addr.__u6_addr16 107 #define s6_addr32 __u6_addr.__u6_addr32 108 #endif 109 110 #define INET6_ADDRSTRLEN 46 111 112 /* 113 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 114 */ 115 116 /* 117 * Socket address for IPv6 118 */ 119 #if __BSD_VISIBLE 120 #define SIN6_LEN 121 #endif 122 123 struct sockaddr_in6 { 124 uint8_t sin6_len; /* length of this struct */ 125 sa_family_t sin6_family; /* AF_INET6 */ 126 in_port_t sin6_port; /* Transport layer port # */ 127 uint32_t sin6_flowinfo; /* IP6 flow information */ 128 struct in6_addr sin6_addr; /* IP6 address */ 129 uint32_t sin6_scope_id; /* scope zone index */ 130 }; 131 132 /* 133 * Local definition for masks 134 */ 135 #ifdef _KERNEL /* XXX nonstandard */ 136 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 137 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 138 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 139 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 140 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 141 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 142 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 143 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 144 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 145 #endif 146 147 #ifdef _KERNEL 148 extern const struct sockaddr_in6 sa6_any; 149 150 extern const struct in6_addr in6mask0; 151 extern const struct in6_addr in6mask32; 152 extern const struct in6_addr in6mask64; 153 extern const struct in6_addr in6mask96; 154 extern const struct in6_addr in6mask128; 155 #endif /* _KERNEL */ 156 157 /* 158 * Macros started with IPV6_ADDR is KAME local 159 */ 160 #ifdef _KERNEL /* XXX nonstandard */ 161 #if _BYTE_ORDER == _BIG_ENDIAN 162 #define IPV6_ADDR_INT32_ONE 1 163 #define IPV6_ADDR_INT32_TWO 2 164 #define IPV6_ADDR_INT32_MNL 0xff010000 165 #define IPV6_ADDR_INT32_MLL 0xff020000 166 #define IPV6_ADDR_INT32_SMP 0x0000ffff 167 #define IPV6_ADDR_INT16_ULL 0xfe80 168 #define IPV6_ADDR_INT16_USL 0xfec0 169 #define IPV6_ADDR_INT16_MLL 0xff02 170 #elif _BYTE_ORDER == _LITTLE_ENDIAN 171 #define IPV6_ADDR_INT32_ONE 0x01000000 172 #define IPV6_ADDR_INT32_TWO 0x02000000 173 #define IPV6_ADDR_INT32_MNL 0x000001ff 174 #define IPV6_ADDR_INT32_MLL 0x000002ff 175 #define IPV6_ADDR_INT32_SMP 0xffff0000 176 #define IPV6_ADDR_INT16_ULL 0x80fe 177 #define IPV6_ADDR_INT16_USL 0xc0fe 178 #define IPV6_ADDR_INT16_MLL 0x02ff 179 #endif 180 #endif 181 182 /* 183 * Definition of some useful macros to handle IP6 addresses 184 */ 185 #if __BSD_VISIBLE 186 #define IN6ADDR_ANY_INIT \ 187 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 188 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 189 #define IN6ADDR_LOOPBACK_INIT \ 190 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 191 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 192 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 193 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 195 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 196 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 197 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 198 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 199 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 201 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 202 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 204 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 205 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 207 #endif 208 209 extern const struct in6_addr in6addr_any; 210 extern const struct in6_addr in6addr_loopback; 211 #if __BSD_VISIBLE 212 extern const struct in6_addr in6addr_nodelocal_allnodes; 213 extern const struct in6_addr in6addr_linklocal_allnodes; 214 extern const struct in6_addr in6addr_linklocal_allrouters; 215 extern const struct in6_addr in6addr_linklocal_allv2routers; 216 #endif 217 218 /* 219 * Equality 220 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 221 * does not supply memcmp(). For userland memcmp() is preferred as it is 222 * in ANSI standard. 223 */ 224 #ifdef _KERNEL 225 #define IN6_ARE_ADDR_EQUAL(a, b) \ 226 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 227 #else 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 #endif 233 234 /* 235 * Unspecified 236 */ 237 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 238 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 239 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 240 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 241 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 242 243 /* 244 * Loopback 245 */ 246 #define IN6_IS_ADDR_LOOPBACK(a) \ 247 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 248 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 249 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 250 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 251 252 /* 253 * IPv4 compatible 254 */ 255 #define IN6_IS_ADDR_V4COMPAT(a) \ 256 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 257 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 258 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 259 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 260 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 261 262 /* 263 * Mapped 264 */ 265 #define IN6_IS_ADDR_V4MAPPED(a) \ 266 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 267 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 268 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 269 270 /* 271 * KAME Scope Values 272 */ 273 274 #ifdef _KERNEL /* XXX nonstandard */ 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 #else 282 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 283 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 284 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 285 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 286 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 287 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 288 #endif 289 290 /* 291 * Unicast Scope 292 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 293 */ 294 #define IN6_IS_ADDR_LINKLOCAL(a) \ 295 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 296 #define IN6_IS_ADDR_SITELOCAL(a) \ 297 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 298 299 /* 300 * Multicast 301 */ 302 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 303 304 #ifdef _KERNEL /* XXX nonstandard */ 305 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 306 #else 307 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 308 #endif 309 310 /* 311 * Multicast Scope 312 */ 313 #ifdef _KERNEL /* refers nonstandard items */ 314 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 317 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 320 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 323 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 326 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 327 (IN6_IS_ADDR_MULTICAST(a) && \ 328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 329 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 330 (IN6_IS_ADDR_MULTICAST(a) && \ 331 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 332 #else 333 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 336 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 339 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 342 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 345 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 348 #endif 349 350 #ifdef _KERNEL /* nonstandard */ 351 /* 352 * KAME Scope 353 */ 354 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 355 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 356 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 357 #define IN6_IS_SCOPE_EMBED(a) \ 358 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 359 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 360 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 361 362 #define IFA6_IS_DEPRECATED(a) \ 363 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 364 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 365 (a)->ia6_lifetime.ia6t_pltime) 366 #define IFA6_IS_INVALID(a) \ 367 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 368 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 369 (a)->ia6_lifetime.ia6t_vltime) 370 #endif /* _KERNEL */ 371 372 /* 373 * IP6 route structure 374 */ 375 #if __BSD_VISIBLE 376 struct route_in6 { 377 struct rtentry *ro_rt; 378 struct llentry *ro_lle; 379 struct in6_addr *ro_ia6; 380 int ro_flags; 381 struct sockaddr_in6 ro_dst; 382 }; 383 #endif 384 385 /* 386 * Options for use with [gs]etsockopt at the IPV6 level. 387 * First word of comment is data type; bool is stored in int. 388 */ 389 /* no hdrincl */ 390 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 391 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 392 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 393 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 394 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 395 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 396 #endif 397 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 398 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 399 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 400 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 401 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 402 #define IPV6_JOIN_GROUP 12 /* ipv6_mreq; join a group membership */ 403 #define IPV6_LEAVE_GROUP 13 /* ipv6_mreq; leave a group membership */ 404 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 405 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 406 /* RFC2292 options */ 407 #ifdef _KERNEL 408 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 409 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 410 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 411 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 412 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 413 #define IPV6_2292RTHDR 24 /* bool; routing header */ 414 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 415 #endif 416 417 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 418 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 419 #ifndef _KERNEL 420 #define IPV6_BINDV6ONLY IPV6_V6ONLY 421 #endif 422 423 #if 1 /* IPSEC */ 424 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 425 #endif /* IPSEC */ 426 427 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 428 429 #if 1 /* IPV6FIREWALL */ 430 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 431 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 432 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 433 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 434 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 435 #endif 436 437 /* new socket options introduced in RFC3542 */ 438 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 439 440 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 441 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 442 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 443 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 444 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 445 #ifdef _KERNEL 446 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 447 #endif 448 449 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 450 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 451 452 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 453 4 bytes int; MTU notification (cmsg) */ 454 #if 0 /*obsoleted during 2292bis -> 3542*/ 455 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 456 (cmsg only/not in of RFC3542) */ 457 #endif 458 459 /* more new socket options introduced in RFC3542 */ 460 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 461 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 462 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 463 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 464 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 465 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 466 #if 0 467 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 468 /* obsoleted by RFC3542 */ 469 #endif 470 471 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 472 473 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 474 475 #define IPV6_TCLASS 61 /* int; send traffic class value */ 476 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 477 478 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 479 * the source address. 480 */ 481 482 #define IPV6_BINDANY 64 /* bool: allow bind to any address */ 483 484 /* 485 * The following option is private; do not use it from user applications. 486 * It is deliberately defined to the same value as IP_MSFILTER. 487 */ 488 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 489 * set/get multicast source filter list. 490 */ 491 492 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 493 494 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 495 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 496 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 497 498 /* 499 * Defaults and limits for options 500 */ 501 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 502 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 503 504 /* 505 * The im6o_membership vector for each socket is now dynamically allocated at 506 * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 507 * according to a power-of-two increment. 508 */ 509 #define IPV6_MIN_MEMBERSHIPS 31 510 #define IPV6_MAX_MEMBERSHIPS 4095 511 512 /* 513 * Default resource limits for IPv6 multicast source filtering. 514 * These may be modified by sysctl. 515 */ 516 #define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 517 #define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 518 519 /* 520 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 521 */ 522 struct ipv6_mreq { 523 struct in6_addr ipv6mr_multiaddr; 524 unsigned int ipv6mr_interface; 525 }; 526 527 /* 528 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 529 */ 530 struct in6_pktinfo { 531 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 532 unsigned int ipi6_ifindex; /* send/recv interface index */ 533 }; 534 535 /* 536 * Control structure for IPV6_RECVPATHMTU socket option. 537 */ 538 struct ip6_mtuinfo { 539 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 540 uint32_t ip6m_mtu; 541 }; 542 543 /* 544 * Argument for IPV6_PORTRANGE: 545 * - which range to search when port is unspecified at bind() or connect() 546 */ 547 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 548 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 549 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 550 551 #if __BSD_VISIBLE 552 /* 553 * Definitions for inet6 sysctl operations. 554 * 555 * Third level is protocol number. 556 * Fourth level is desired variable within that protocol. 557 */ 558 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 559 560 /* 561 * Names for IP sysctl objects 562 */ 563 #define IPV6CTL_FORWARDING 1 /* act as router */ 564 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 565 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 566 #ifdef notyet 567 #define IPV6CTL_DEFMTU 4 /* default MTU */ 568 #endif 569 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 570 #define IPV6CTL_STATS 6 /* stats */ 571 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 572 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 573 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 574 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 575 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 576 #define IPV6CTL_ACCEPT_RTADV 12 577 #define IPV6CTL_KEEPFAITH 13 578 #define IPV6CTL_LOG_INTERVAL 14 579 #define IPV6CTL_HDRNESTLIMIT 15 580 #define IPV6CTL_DAD_COUNT 16 581 #define IPV6CTL_AUTO_FLOWLABEL 17 582 #define IPV6CTL_DEFMCASTHLIM 18 583 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 584 #define IPV6CTL_KAME_VERSION 20 585 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 586 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 587 #if 0 /* obsolete */ 588 #define IPV6CTL_MAPPED_ADDR 23 589 #endif 590 #define IPV6CTL_V6ONLY 24 591 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 592 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 593 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 594 595 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 596 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 597 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 598 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 599 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 600 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 601 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 602 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 603 604 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 605 #if 0 606 #define IPV6CTL_IFQ 42 /* ip6intrq node */ 607 #define IPV6CTL_ISATAPRTR 43 /* isatap router */ 608 #endif 609 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 610 611 /* New entries should be added here from current IPV6CTL_MAXID value. */ 612 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 613 #define IPV6CTL_STEALTH 45 614 615 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 616 #define IPV6CTL_NO_RADR 48 /* No defroute from RA */ 617 #define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA 618 * receiving IF. */ 619 #define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding 620 enabled */ 621 #define IPV6CTL_MAXID 51 622 #endif /* __BSD_VISIBLE */ 623 624 /* 625 * Redefinition of mbuf flags 626 */ 627 #define M_AUTHIPHDR M_PROTO2 628 #define M_DECRYPTED M_PROTO3 629 #define M_LOOP M_PROTO4 630 #define M_AUTHIPDGM M_PROTO5 631 #define M_RTALERT_MLD M_PROTO6 632 633 #ifdef _KERNEL 634 struct cmsghdr; 635 636 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 637 int in6_localaddr __P((struct in6_addr *)); 638 int in6_localip(struct in6_addr *); 639 int in6_addrscope __P((struct in6_addr *)); 640 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 641 extern void in6_if_up __P((struct ifnet *)); 642 struct sockaddr; 643 extern u_char ip6_protox[]; 644 645 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 646 struct sockaddr_in6 *sin6)); 647 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 648 struct sockaddr_in6 *sin6)); 649 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 650 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 651 extern void addrsel_policy_init __P((void)); 652 653 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 654 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 655 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 656 657 extern int (*faithprefix_p)(struct in6_addr *); 658 #endif /* _KERNEL */ 659 660 #ifndef _SIZE_T_DECLARED 661 typedef __size_t size_t; 662 #define _SIZE_T_DECLARED 663 #endif 664 665 #ifndef _SOCKLEN_T_DECLARED 666 typedef __socklen_t socklen_t; 667 #define _SOCKLEN_T_DECLARED 668 #endif 669 670 #if __BSD_VISIBLE 671 672 __BEGIN_DECLS 673 struct cmsghdr; 674 675 extern int inet6_option_space __P((int)); 676 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 677 extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 678 int, int)); 679 extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 680 extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 681 extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 682 683 extern size_t inet6_rthdr_space __P((int, int)); 684 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 685 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 686 unsigned int)); 687 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 688 #if 0 /* not implemented yet */ 689 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 690 #endif 691 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 692 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 693 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 694 695 extern int inet6_opt_init __P((void *, socklen_t)); 696 extern int inet6_opt_append __P((void *, socklen_t, int, uint8_t, socklen_t, 697 uint8_t, void **)); 698 extern int inet6_opt_finish __P((void *, socklen_t, int)); 699 extern int inet6_opt_set_val __P((void *, int, void *, socklen_t)); 700 701 extern int inet6_opt_next __P((void *, socklen_t, int, uint8_t *, socklen_t *, 702 void **)); 703 extern int inet6_opt_find __P((void *, socklen_t, int, uint8_t, socklen_t *, 704 void **)); 705 extern int inet6_opt_get_val __P((void *, int, void *, socklen_t)); 706 extern socklen_t inet6_rth_space __P((int, int)); 707 extern void *inet6_rth_init __P((void *, socklen_t, int, int)); 708 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 709 extern int inet6_rth_reverse __P((const void *, void *)); 710 extern int inet6_rth_segments __P((const void *)); 711 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 712 __END_DECLS 713 714 #endif /* __BSD_VISIBLE */ 715 716 #endif /* !_NETINET6_IN6_H_ */ 717