1 /* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */ 2 /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1982, 1986, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)in.h 8.3 (Berkeley) 1/3/94 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 #include <sys/cdefs.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 "20010528/FreeBSD" 80 81 #ifndef _SA_FAMILY_T_DECLARED 82 typedef __uint8_t sa_family_t; 83 #define _SA_FAMILY_T_DECLARED 84 #endif 85 86 #ifndef _SIZE_T_DECLARED 87 typedef __size_t size_t; 88 #define _SIZE_T_DECLARED 89 #endif 90 91 #ifndef _SOCKLEN_T_DECLARED 92 #define _SOCKLEN_T_DECLARED 93 typedef __socklen_t socklen_t; 94 #endif 95 96 #ifndef _UINT8_T_DECLARED 97 typedef __uint8_t uint8_t; 98 #define _UINT8_T_DECLARED 99 #endif 100 #ifndef _UINT16_T_DECLARED 101 typedef __uint16_t uint16_t; 102 #define _UINT16_T_DECLARED 103 #endif 104 #ifndef _UINT32_T_DECLARED 105 typedef __uint32_t uint32_t; 106 #define _UINT32_T_DECLARED 107 #endif 108 109 /* 110 * Local port number conventions: 111 * 112 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 113 * unless a kernel is compiled with IPNOPRIVPORTS defined. 114 * 115 * When a user does a bind(2) or connect(2) with a port number of zero, 116 * a non-conflicting local port address is chosen. 117 * 118 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 119 * that is settable by sysctl(3); net.inet.ip.anonportmin and 120 * net.inet.ip.anonportmax respectively. 121 * 122 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 123 * default assignment range. 124 * 125 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 126 * 127 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 128 * and exists only for FreeBSD compatibility purposes. 129 * 130 * The value IP_PORTRANGE_LOW changes the range to the "low" are 131 * that is (by convention) restricted to privileged processes. 132 * This convention is based on "vouchsafe" principles only. 133 * It is only secure if you trust the remote host to restrict these ports. 134 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 135 */ 136 137 #if __BSD_VISIBLE 138 #define IPV6PORT_RESERVED 1024 139 #define IPV6PORT_ANONMIN 49152 140 #define IPV6PORT_ANONMAX 65535 141 #define IPV6PORT_RESERVEDMIN 600 142 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 143 #endif 144 145 /* 146 * IPv6 address 147 */ 148 #ifndef _STRUCT_IN6_ADDR_DECLARED 149 struct in6_addr { 150 union { 151 uint8_t __u6_addr8[16]; 152 uint16_t __u6_addr16[8]; 153 uint32_t __u6_addr32[4]; 154 } __u6_addr; /* 128-bit IP6 address */ 155 }; 156 #define _STRUCT_IN6_ADDR_DECLARED 157 #endif 158 159 #define s6_addr __u6_addr.__u6_addr8 160 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ 161 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ 162 #if __BSD_VISIBLE /* XXX nonstandard */ 163 #define s6_addr8 __u6_addr.__u6_addr8 164 #define s6_addr16 __u6_addr.__u6_addr16 165 #define s6_addr32 __u6_addr.__u6_addr32 166 #endif 167 168 #define INET6_ADDRSTRLEN 46 169 170 /* 171 * Socket address for IPv6 172 */ 173 #if __BSD_VISIBLE 174 #define SIN6_LEN 175 #endif 176 177 struct sockaddr_in6 { 178 uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 179 sa_family_t sin6_family; /* AF_INET6 */ 180 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 181 uint32_t sin6_flowinfo; /* IP6 flow information */ 182 struct in6_addr sin6_addr; /* IP6 address */ 183 uint32_t sin6_scope_id; /* scope zone index */ 184 }; 185 186 /* 187 * Local definition for masks 188 */ 189 #ifdef _KERNEL /* XXX nonstandard */ 190 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 191 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 192 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 193 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 195 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 196 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 197 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 198 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 199 #endif 200 201 #ifdef _KERNEL 202 extern const struct sockaddr_in6 sa6_any; 203 204 extern const struct in6_addr in6mask0; 205 extern const struct in6_addr in6mask32; 206 extern const struct in6_addr in6mask64; 207 extern const struct in6_addr in6mask96; 208 extern const struct in6_addr in6mask128; 209 #endif /* _KERNEL */ 210 211 /* 212 * Macros started with IPV6_ADDR is KAME local 213 */ 214 #if BYTE_ORDER == BIG_ENDIAN 215 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 216 #define _IPV6_ADDR_INT16_ULL 0xfe80 217 #define _IPV6_ADDR_INT16_USL 0xfec0 218 #else 219 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff 220 #define _IPV6_ADDR_INT16_ULL 0x80fe 221 #define _IPV6_ADDR_INT16_USL 0xc0fe 222 #endif 223 224 #ifdef _KERNEL /* XXX nonstandard */ 225 #if BYTE_ORDER == BIG_ENDIAN 226 #define IPV6_ADDR_INT32_ONE 1 227 #define IPV6_ADDR_INT32_TWO 2 228 #define IPV6_ADDR_INT32_MNL 0xff010000 229 #define IPV6_ADDR_INT32_MLL 0xff020000 230 #define IPV6_ADDR_INT32_SMP 0x0000ffff 231 #define IPV6_ADDR_INT16_MLL 0xff02 232 #elif BYTE_ORDER == LITTLE_ENDIAN 233 #define IPV6_ADDR_INT32_ONE 0x01000000 234 #define IPV6_ADDR_INT32_TWO 0x02000000 235 #define IPV6_ADDR_INT32_MNL 0x000001ff 236 #define IPV6_ADDR_INT32_MLL 0x000002ff 237 #define IPV6_ADDR_INT32_SMP 0xffff0000 238 #define IPV6_ADDR_INT16_MLL 0x02ff 239 #endif 240 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL 241 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL 242 #endif 243 244 /* 245 * Definition of some useful macros to handle IP6 addresses 246 */ 247 #define IN6ADDR_ANY_INIT \ 248 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 250 #define IN6ADDR_LOOPBACK_INIT \ 251 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 253 #if __BSD_VISIBLE 254 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 255 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 257 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 258 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 260 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 261 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 263 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 264 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 265 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 266 #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \ 267 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 268 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}} 269 #endif 270 271 #ifdef _KERNEL 272 extern const struct in6_addr kin6addr_any; 273 extern const struct in6_addr kin6addr_loopback; 274 extern const struct in6_addr kin6addr_nodelocal_allnodes; 275 extern const struct in6_addr kin6addr_linklocal_allnodes; 276 extern const struct in6_addr kin6addr_linklocal_allrouters; 277 #else 278 extern const struct in6_addr in6addr_any; 279 extern const struct in6_addr in6addr_loopback; 280 #if __BSD_VISIBLE 281 extern const struct in6_addr in6addr_nodelocal_allnodes; 282 extern const struct in6_addr in6addr_linklocal_allnodes; 283 #endif 284 #endif 285 286 #if __BSD_VISIBLE || defined(_KERNEL) 287 #define IN6_ARE_ADDR_EQUAL(a, b) \ 288 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 289 #endif 290 291 #ifdef _KERNEL /* non standard */ 292 /* see if two addresses are equal in a scope-conscious manner. */ 293 #define SA6_ARE_ADDR_EQUAL(a, b) \ 294 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 295 (a)->sin6_scope_id == (b)->sin6_scope_id) && \ 296 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 297 #endif 298 299 /* 300 * Unspecified 301 */ 302 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 303 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 304 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) 305 306 /* 307 * Loopback 308 */ 309 #define IN6_IS_ADDR_LOOPBACK(a) \ 310 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 311 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) 312 313 /* 314 * Mapped 315 */ 316 #define IN6_IS_ADDR_V4MAPPED(a) \ 317 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 318 (a)->_s6_addr32[2] == ntohl(0x0000ffff)) 319 320 /* 321 * IPv4 compatible. Deprecated by RFC4291. 322 */ 323 #define IN6_IS_ADDR_V4COMPAT(a) \ 324 ((a)->_s6_addr32[0] == 0 && \ 325 (a)->_s6_addr32[1] == 0 && \ 326 (a)->_s6_addr32[2] == 0 && \ 327 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) 328 329 /* 330 * KAME Scope Values 331 */ 332 333 #ifdef _KERNEL /* XXX nonstandard */ 334 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 335 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 336 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 337 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 338 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 339 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 340 #else 341 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 342 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 343 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 344 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 345 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 346 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 347 #endif 348 349 /* 350 * Unicast Scope 351 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 352 */ 353 #define IN6_IS_ADDR_LINKLOCAL(a) \ 354 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) 355 #define IN6_IS_ADDR_SITELOCAL(a) \ 356 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) 357 358 /* 359 * Multicast 360 */ 361 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 362 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 363 #ifdef _KERNEL /* XXX nonstandard */ 364 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) 365 #endif 366 367 /* 368 * Multicast Scope 369 */ 370 #ifdef _KERNEL 371 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 372 (IN6_IS_ADDR_MULTICAST(a) && \ 373 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 374 375 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 376 (IN6_IS_ADDR_MULTICAST(a) && \ 377 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 378 379 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 380 (IN6_IS_ADDR_MULTICAST(a) && \ 381 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 382 383 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 384 (IN6_IS_ADDR_MULTICAST(a) && \ 385 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 386 387 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 388 (IN6_IS_ADDR_MULTICAST(a) && \ 389 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 390 391 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 392 (IN6_IS_ADDR_MULTICAST(a) && \ 393 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 394 #else 395 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 396 (IN6_IS_ADDR_MULTICAST(a) && \ 397 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 398 399 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 400 (IN6_IS_ADDR_MULTICAST(a) && \ 401 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 402 403 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 404 (IN6_IS_ADDR_MULTICAST(a) && \ 405 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 406 407 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 408 (IN6_IS_ADDR_MULTICAST(a) && \ 409 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 410 411 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 412 (IN6_IS_ADDR_MULTICAST(a) && \ 413 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 414 #endif 415 416 #ifdef _KERNEL /* nonstandard */ 417 /* 418 * KAME Scope 419 */ 420 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 421 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) 422 #define IN6_IS_SCOPE_EMBED(a) \ 423 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 424 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 425 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 426 427 428 #define IFA6_IS_DEPRECATED(a) \ 429 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 430 (a)->ia6_lifetime.ia6t_preferred < time_uptime) 431 432 #define IFA6_IS_INVALID(a) \ 433 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 434 (a)->ia6_lifetime.ia6t_expire < time_uptime) 435 #endif 436 437 /* 438 * IP6 route structure 439 */ 440 #if __BSD_VISIBLE 441 struct route_in6 { 442 struct rtentry *ro_rt; 443 struct sockaddr_in6 ro_dst; 444 }; 445 #endif 446 447 /* 448 * Options for use with [gs]etsockopt at the IPV6 level. 449 * First word of comment is data type; bool is stored in int. 450 */ 451 /* no hdrincl */ 452 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 453 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 454 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 455 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 456 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 457 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 458 #endif 459 #if __BSD_VISIBLE 460 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 461 #endif 462 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 463 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 464 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 465 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 466 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 467 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 468 #if __BSD_VISIBLE 469 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 470 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 471 #endif 472 /* RFC2292 options */ 473 #ifdef _KERNEL 474 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 475 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 476 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 477 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 478 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 479 #define IPV6_2292RTHDR 24 /* bool; routing header */ 480 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 481 #endif 482 483 #if __BSD_VISIBLE 484 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 485 #endif 486 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 487 #ifndef _KERNEL 488 #define IPV6_BINDV6ONLY IPV6_V6ONLY 489 #endif 490 491 #if __BSD_VISIBLE 492 #if 1 /* IPV6FIREWALL */ 493 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 494 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 495 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 496 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 497 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 498 #endif 499 500 /* 501 * new socket options introduced in RFC3542 502 */ 503 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 504 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 505 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 506 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 507 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 508 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 509 #endif 510 #ifdef _KERNEL 511 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 512 #endif 513 #if __BSD_VISIBLE 514 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 515 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 516 517 /* mtuinfo; get the current path MTU (sopt), 518 * 4 bytes int; MTU notification (cmsg) 519 */ 520 #define IPV6_PATHMTU 44 521 #if 0 /*obsoleted during 2292bis -> 3542*/ 522 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 523 (cmsg only/not in of RFC3542) */ 524 #endif 525 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 526 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 527 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 528 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 529 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 530 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 531 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ 532 533 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 534 535 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 536 537 #define IPV6_TCLASS 61 /* int; send traffic class value */ 538 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 539 540 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 541 * the source address. 542 */ 543 /* 544 * The following option is private; do not use it from user applications. 545 * It is deliberately defined to the same value as IP_MSFILTER. 546 */ 547 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 548 * set/get multicast source filter list. 549 */ 550 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 551 552 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 553 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 554 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 555 556 /* 557 * Defaults and limits for options 558 */ 559 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 560 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 561 #endif /* __BSD_VISIBLE */ 562 563 /* 564 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 565 */ 566 struct ipv6_mreq { 567 struct in6_addr ipv6mr_multiaddr; 568 unsigned int ipv6mr_interface; 569 }; 570 571 #if __BSD_VISIBLE 572 /* 573 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 574 */ 575 struct in6_pktinfo { 576 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 577 unsigned int ipi6_ifindex; /* send/recv interface index */ 578 }; 579 580 /* 581 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. 582 */ 583 struct ip6_mtuinfo { 584 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 585 uint32_t ip6m_mtu; 586 }; 587 588 /* 589 * Argument for IPV6_PORTRANGE: 590 * - which range to search when port is unspecified at bind() or connect() 591 */ 592 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 593 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 594 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 595 596 /* 597 * Definitions for inet6 sysctl operations. 598 * 599 * Third level is protocol number. 600 * Fourth level is desired variable within that protocol. 601 */ 602 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 603 604 /* 605 * Names for IP sysctl objects 606 */ 607 #define IPV6CTL_FORWARDING 1 /* act as router */ 608 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 609 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 610 #ifdef notyet 611 #define IPV6CTL_DEFMTU 4 /* default MTU */ 612 #endif 613 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 614 #define IPV6CTL_STATS 6 /* stats */ 615 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 616 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 617 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 618 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 619 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 620 #define IPV6CTL_ACCEPT_RTADV 12 621 #define IPV6CTL_LOG_INTERVAL 14 622 #define IPV6CTL_HDRNESTLIMIT 15 623 #define IPV6CTL_DAD_COUNT 16 624 #define IPV6CTL_AUTO_FLOWLABEL 17 625 #define IPV6CTL_DEFMCASTHLIM 18 626 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 627 #define IPV6CTL_KAME_VERSION 20 628 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 629 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 630 #if 0 /* obsolete */ 631 #define IPV6CTL_MAPPED_ADDR 23 632 #define IPV6CTL_V6ONLY 24 633 #endif 634 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 635 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 636 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 637 638 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 639 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 640 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 641 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 642 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 643 644 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 645 #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */ 646 647 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 648 649 /* New entries should be added here from current IPV6CTL_MAXID value. */ 650 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 651 652 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 653 #define IPV6CTL_MAXID 48 654 655 /* 656 * Redefinition of mbuf flags 657 */ 658 #define M_AUTHIPHDR M_PROTO2 659 #define M_DECRYPTED M_PROTO3 660 #define M_LOOP M_PROTO4 661 #define M_AUTHIPDGM M_PROTO5 662 #endif /* __BSD_VISIBLE */ 663 664 #ifdef _KERNEL 665 666 struct ifnet; 667 struct mbuf; 668 struct sockaddr; 669 struct sockaddr_in; 670 struct sockaddr_in6; 671 672 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); 673 int in6_localaddr (struct in6_addr *); 674 int in6_addrscope (struct in6_addr *); 675 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *); 676 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 677 678 void addrsel_policy_init (void); 679 680 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 681 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 682 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 683 #endif /* _KERNEL */ 684 685 #if __BSD_VISIBLE 686 __BEGIN_DECLS 687 struct cmsghdr; 688 689 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 690 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); 691 int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 692 int inet6_option_init (void *, struct cmsghdr **, int); 693 int inet6_option_next (const struct cmsghdr *, uint8_t **); 694 int inet6_option_space (int); 695 696 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); 697 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); 698 int inet6_opt_finish (void *, socklen_t, int); 699 int inet6_opt_get_val (void *, int, void *, socklen_t); 700 int inet6_opt_init (void *, socklen_t); 701 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); 702 int inet6_opt_set_val (void *, int, void *, socklen_t); 703 704 int inet6_rth_add (void *, const struct in6_addr *); 705 struct in6_addr *inet6_rth_getaddr (const void *, int); 706 void *inet6_rth_init (void *, socklen_t, int, int); 707 int inet6_rth_reverse (const void *, void *); 708 int inet6_rth_segments (const void *); 709 socklen_t inet6_rth_space (int, int); 710 711 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 712 unsigned int); 713 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 714 int inet6_rthdr_getflags (const struct cmsghdr *, int); 715 struct cmsghdr *inet6_rthdr_init (void *, int); 716 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 717 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 718 int inet6_rthdr_segments (const struct cmsghdr *); 719 size_t inet6_rthdr_space (int, int); 720 __END_DECLS 721 #endif /* __BSD_VISIBLE */ 722 723 #endif /* !_NETINET6_IN6_H_ */ 724