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 /* 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 "20010528/FreeBSD" 78 79 #ifndef _SA_FAMILY_T_DECLARED 80 typedef __uint8_t sa_family_t; 81 #define _SA_FAMILY_T_DECLARED 82 #endif 83 84 #ifndef _SIZE_T_DECLARED 85 typedef __size_t size_t; 86 #define _SIZE_T_DECLARED 87 #endif 88 89 #ifndef _SOCKLEN_T_DECLARED 90 #define _SOCKLEN_T_DECLARED 91 typedef __socklen_t socklen_t; 92 #endif 93 94 #ifndef _UINT8_T_DECLARED 95 typedef __uint8_t uint8_t; 96 #define _UINT8_T_DECLARED 97 #endif 98 #ifndef _UINT16_T_DECLARED 99 typedef __uint16_t uint16_t; 100 #define _UINT16_T_DECLARED 101 #endif 102 #ifndef _UINT32_T_DECLARED 103 typedef __uint32_t uint32_t; 104 #define _UINT32_T_DECLARED 105 #endif 106 107 /* 108 * Local port number conventions: 109 * 110 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 111 * unless a kernel is compiled with IPNOPRIVPORTS defined. 112 * 113 * When a user does a bind(2) or connect(2) with a port number of zero, 114 * a non-conflicting local port address is chosen. 115 * 116 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 117 * that is settable by sysctl(3); net.inet.ip.anonportmin and 118 * net.inet.ip.anonportmax respectively. 119 * 120 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 121 * default assignment range. 122 * 123 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 124 * 125 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 126 * and exists only for FreeBSD compatibility purposes. 127 * 128 * The value IP_PORTRANGE_LOW changes the range to the "low" are 129 * that is (by convention) restricted to privileged processes. 130 * This convention is based on "vouchsafe" principles only. 131 * It is only secure if you trust the remote host to restrict these ports. 132 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 133 */ 134 135 #define IPV6PORT_RESERVED 1024 136 #define IPV6PORT_ANONMIN 49152 137 #define IPV6PORT_ANONMAX 65535 138 #define IPV6PORT_RESERVEDMIN 600 139 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 140 141 /* 142 * IPv6 address 143 */ 144 #ifndef _STRUCT_IN6_ADDR_DECLARED 145 struct in6_addr { 146 union { 147 uint8_t __u6_addr8[16]; 148 uint16_t __u6_addr16[8]; 149 uint32_t __u6_addr32[4]; 150 } __u6_addr; /* 128-bit IP6 address */ 151 }; 152 #define _STRUCT_IN6_ADDR_DECLARED 153 #endif 154 155 #define s6_addr __u6_addr.__u6_addr8 156 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ 157 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ 158 #if __BSD_VISIBLE /* XXX nonstandard */ 159 #define s6_addr8 __u6_addr.__u6_addr8 160 #define s6_addr16 __u6_addr.__u6_addr16 161 #define s6_addr32 __u6_addr.__u6_addr32 162 #endif 163 164 #define INET6_ADDRSTRLEN 46 165 166 /* 167 * Socket address for IPv6 168 */ 169 #ifndef _XOPEN_SOURCE 170 #define SIN6_LEN 171 #endif 172 struct sockaddr_in6 { 173 uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 174 sa_family_t sin6_family; /* AF_INET6 */ 175 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 176 uint32_t sin6_flowinfo; /* IP6 flow information */ 177 struct in6_addr sin6_addr; /* IP6 address */ 178 uint32_t sin6_scope_id; /* scope zone index */ 179 }; 180 181 /* 182 * Local definition for masks 183 */ 184 #ifdef _KERNEL /* XXX nonstandard */ 185 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 186 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 187 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 188 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 189 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 190 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 191 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 192 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 193 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 194 #endif 195 196 #ifdef _KERNEL 197 extern const struct sockaddr_in6 sa6_any; 198 199 extern const struct in6_addr in6mask0; 200 extern const struct in6_addr in6mask32; 201 extern const struct in6_addr in6mask64; 202 extern const struct in6_addr in6mask96; 203 extern const struct in6_addr in6mask128; 204 #endif /* _KERNEL */ 205 206 /* 207 * Macros started with IPV6_ADDR is KAME local 208 */ 209 #if BYTE_ORDER == BIG_ENDIAN 210 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 211 #define _IPV6_ADDR_INT16_ULL 0xfe80 212 #define _IPV6_ADDR_INT16_USL 0xfec0 213 #else 214 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff 215 #define _IPV6_ADDR_INT16_ULL 0x80fe 216 #define _IPV6_ADDR_INT16_USL 0xc0fe 217 #endif 218 219 #ifdef _KERNEL /* XXX nonstandard */ 220 #if BYTE_ORDER == BIG_ENDIAN 221 #define IPV6_ADDR_INT32_ONE 1 222 #define IPV6_ADDR_INT32_TWO 2 223 #define IPV6_ADDR_INT32_MNL 0xff010000 224 #define IPV6_ADDR_INT32_MLL 0xff020000 225 #define IPV6_ADDR_INT32_SMP 0x0000ffff 226 #define IPV6_ADDR_INT16_MLL 0xff02 227 #elif BYTE_ORDER == LITTLE_ENDIAN 228 #define IPV6_ADDR_INT32_ONE 0x01000000 229 #define IPV6_ADDR_INT32_TWO 0x02000000 230 #define IPV6_ADDR_INT32_MNL 0x000001ff 231 #define IPV6_ADDR_INT32_MLL 0x000002ff 232 #define IPV6_ADDR_INT32_SMP 0xffff0000 233 #define IPV6_ADDR_INT16_MLL 0x02ff 234 #endif 235 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL 236 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL 237 #endif 238 239 /* 240 * Definition of some useful macros to handle IP6 addresses 241 */ 242 #define IN6ADDR_ANY_INIT \ 243 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 244 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 245 #define IN6ADDR_LOOPBACK_INIT \ 246 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 247 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 248 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 249 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 251 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 252 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 253 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 254 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 255 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 257 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 258 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 260 #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \ 261 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}} 263 264 #ifdef _KERNEL 265 extern const struct in6_addr kin6addr_any; 266 extern const struct in6_addr kin6addr_loopback; 267 extern const struct in6_addr kin6addr_nodelocal_allnodes; 268 extern const struct in6_addr kin6addr_linklocal_allnodes; 269 extern const struct in6_addr kin6addr_linklocal_allrouters; 270 #else 271 extern const struct in6_addr in6addr_any; 272 extern const struct in6_addr in6addr_loopback; 273 extern const struct in6_addr in6addr_nodelocal_allnodes; 274 extern const struct in6_addr in6addr_linklocal_allnodes; 275 #endif 276 277 #define IN6_ARE_ADDR_EQUAL(a, b) \ 278 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 279 280 #ifdef _KERNEL /* non standard */ 281 /* see if two addresses are equal in a scope-conscious manner. */ 282 #define SA6_ARE_ADDR_EQUAL(a, b) \ 283 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 284 (a)->sin6_scope_id == (b)->sin6_scope_id) && \ 285 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 286 #endif 287 288 /* 289 * Unspecified 290 */ 291 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 292 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 293 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) 294 295 /* 296 * Loopback 297 */ 298 #define IN6_IS_ADDR_LOOPBACK(a) \ 299 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 300 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) 301 302 /* 303 * Mapped 304 */ 305 #define IN6_IS_ADDR_V4MAPPED(a) \ 306 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 307 (a)->_s6_addr32[2] == ntohl(0x0000ffff)) 308 309 /* 310 * IPv4 compatible. Deprecated by RFC4291. 311 */ 312 #define IN6_IS_ADDR_V4COMPAT(a) \ 313 ((a)->_s6_addr32[0] == 0 && \ 314 (a)->_s6_addr32[1] == 0 && \ 315 (a)->_s6_addr32[2] == 0 && \ 316 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) 317 318 /* 319 * KAME Scope Values 320 */ 321 322 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 323 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 324 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 325 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 326 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 327 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 328 329 #ifdef _KERNEL /* XXX nonstandard */ 330 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 331 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 332 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 333 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 334 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 335 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 336 #endif 337 338 /* 339 * Unicast Scope 340 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 341 */ 342 #define IN6_IS_ADDR_LINKLOCAL(a) \ 343 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) 344 #define IN6_IS_ADDR_SITELOCAL(a) \ 345 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) 346 347 /* 348 * Multicast 349 */ 350 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 351 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 352 #ifdef _KERNEL /* XXX nonstandard */ 353 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) 354 #endif 355 356 /* 357 * Multicast Scope 358 */ 359 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 360 (IN6_IS_ADDR_MULTICAST(a) && \ 361 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 362 363 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 364 (IN6_IS_ADDR_MULTICAST(a) && \ 365 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 366 367 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 368 (IN6_IS_ADDR_MULTICAST(a) && \ 369 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 370 371 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 372 (IN6_IS_ADDR_MULTICAST(a) && \ 373 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 374 375 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 376 (IN6_IS_ADDR_MULTICAST(a) && \ 377 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 378 379 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 380 (IN6_IS_ADDR_MULTICAST(a) && \ 381 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 382 383 #ifdef _KERNEL /* nonstandard */ 384 /* 385 * KAME Scope 386 */ 387 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 388 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) 389 #define IN6_IS_SCOPE_EMBED(a) \ 390 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 391 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 392 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 393 394 395 #define IFA6_IS_DEPRECATED(a) \ 396 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 397 (a)->ia6_lifetime.ia6t_preferred < time_uptime) 398 399 #define IFA6_IS_INVALID(a) \ 400 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 401 (a)->ia6_lifetime.ia6t_expire < time_uptime) 402 #endif 403 404 /* 405 * IP6 route structure 406 */ 407 #ifndef _XOPEN_SOURCE 408 struct route_in6 { 409 struct rtentry *ro_rt; 410 struct sockaddr_in6 ro_dst; 411 }; 412 #endif 413 414 /* 415 * Options for use with [gs]etsockopt at the IPV6 level. 416 * First word of comment is data type; bool is stored in int. 417 */ 418 /* no hdrincl */ 419 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 420 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 421 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 422 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 423 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 424 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 425 #endif 426 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 427 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 428 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 429 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 430 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 431 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 432 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 433 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 434 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 435 /* RFC2292 options */ 436 #ifdef _KERNEL 437 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 438 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 439 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 440 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 441 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 442 #define IPV6_2292RTHDR 24 /* bool; routing header */ 443 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 444 #endif 445 446 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 447 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 448 #ifndef _KERNEL 449 #define IPV6_BINDV6ONLY IPV6_V6ONLY 450 #endif 451 452 #if 1 /* IPV6FIREWALL */ 453 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 454 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 455 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 456 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 457 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 458 #endif 459 460 /* 461 * new socket options introduced in RFC3542 462 */ 463 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 464 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 465 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 466 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 467 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 468 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 469 #ifdef _KERNEL 470 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 471 #endif 472 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 473 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 474 475 /* mtuinfo; get the current path MTU (sopt), 476 * 4 bytes int; MTU notification (cmsg) 477 */ 478 #define IPV6_PATHMTU 44 479 #if 0 /*obsoleted during 2292bis -> 3542*/ 480 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 481 (cmsg only/not in of RFC3542) */ 482 #endif 483 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 484 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 485 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 486 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 487 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 488 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 489 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ 490 491 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 492 493 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 494 495 #define IPV6_TCLASS 61 /* int; send traffic class value */ 496 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 497 498 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 499 * the source address. 500 */ 501 /* 502 * The following option is private; do not use it from user applications. 503 * It is deliberately defined to the same value as IP_MSFILTER. 504 */ 505 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 506 * set/get multicast source filter list. 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 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 522 */ 523 struct ipv6_mreq { 524 struct in6_addr ipv6mr_multiaddr; 525 unsigned int ipv6mr_interface; 526 }; 527 528 /* 529 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 530 */ 531 struct in6_pktinfo { 532 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 533 unsigned int ipi6_ifindex; /* send/recv interface index */ 534 }; 535 536 /* 537 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. 538 */ 539 struct ip6_mtuinfo { 540 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 541 uint32_t ip6m_mtu; 542 }; 543 544 /* 545 * Argument for IPV6_PORTRANGE: 546 * - which range to search when port is unspecified at bind() or connect() 547 */ 548 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 549 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 550 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 551 552 #ifndef _XOPEN_SOURCE 553 /* 554 * Definitions for inet6 sysctl operations. 555 * 556 * Third level is protocol number. 557 * Fourth level is desired variable within that protocol. 558 */ 559 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 560 561 /* 562 * Names for IP sysctl objects 563 */ 564 #define IPV6CTL_FORWARDING 1 /* act as router */ 565 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 566 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 567 #ifdef notyet 568 #define IPV6CTL_DEFMTU 4 /* default MTU */ 569 #endif 570 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 571 #define IPV6CTL_STATS 6 /* stats */ 572 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 573 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 574 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 575 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 576 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 577 #define IPV6CTL_ACCEPT_RTADV 12 578 #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 #define IPV6CTL_V6ONLY 24 590 #endif 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 */ 600 601 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 602 #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */ 603 604 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 605 606 /* New entries should be added here from current IPV6CTL_MAXID value. */ 607 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 608 609 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 610 #define IPV6CTL_MAXID 48 611 #endif /* !_XOPEN_SOURCE */ 612 613 /* 614 * Redefinition of mbuf flags 615 */ 616 #define M_AUTHIPHDR M_PROTO2 617 #define M_DECRYPTED M_PROTO3 618 #define M_LOOP M_PROTO4 619 #define M_AUTHIPDGM M_PROTO5 620 621 #ifdef _KERNEL 622 623 struct ifnet; 624 struct mbuf; 625 struct sockaddr; 626 struct sockaddr_in; 627 struct sockaddr_in6; 628 629 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); 630 int in6_localaddr (struct in6_addr *); 631 int in6_addrscope (struct in6_addr *); 632 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *); 633 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 634 635 void addrsel_policy_init (void); 636 637 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 638 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 639 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 640 #endif /* _KERNEL */ 641 642 #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ 643 644 __BEGIN_DECLS 645 struct cmsghdr; 646 647 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 648 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); 649 int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 650 int inet6_option_init (void *, struct cmsghdr **, int); 651 int inet6_option_next (const struct cmsghdr *, uint8_t **); 652 int inet6_option_space (int); 653 654 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); 655 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); 656 int inet6_opt_finish (void *, socklen_t, int); 657 int inet6_opt_get_val (void *, int, void *, socklen_t); 658 int inet6_opt_init (void *, socklen_t); 659 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); 660 int inet6_opt_set_val (void *, int, void *, socklen_t); 661 662 int inet6_rth_add (void *, const struct in6_addr *); 663 struct in6_addr *inet6_rth_getaddr (const void *, int); 664 void *inet6_rth_init (void *, socklen_t, int, int); 665 int inet6_rth_reverse (const void *, void *); 666 int inet6_rth_segments (const void *); 667 socklen_t inet6_rth_space (int, int); 668 669 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 670 unsigned int); 671 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 672 int inet6_rthdr_getflags (const struct cmsghdr *, int); 673 struct cmsghdr *inet6_rthdr_init (void *, int); 674 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 675 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 676 int inet6_rthdr_segments (const struct cmsghdr *); 677 size_t inet6_rthdr_space (int, int); 678 __END_DECLS 679 680 #endif /* !_NETINET6_IN6_H_ */ 681