1 /* $FreeBSD$ */ 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. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in.h 8.3 (Berkeley) 1/3/94 66 */ 67 68 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 69 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 70 #endif 71 72 #ifndef _NETINET6_IN6_H_ 73 #define _NETINET6_IN6_H_ 74 75 /* 76 * Identification of the network protocol stack 77 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 78 * has the table of implementation/integration differences. 79 */ 80 #define __KAME__ 81 #define __KAME_VERSION "20010528/FreeBSD" 82 83 /* 84 * Local port number conventions: 85 * 86 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 87 * unless a kernel is compiled with IPNOPRIVPORTS defined. 88 * 89 * When a user does a bind(2) or connect(2) with a port number of zero, 90 * a non-conflicting local port address is chosen. 91 * 92 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 93 * that is settable by sysctl(3); net.inet.ip.anonportmin and 94 * net.inet.ip.anonportmax respectively. 95 * 96 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 97 * default assignment range. 98 * 99 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 100 * 101 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 102 * and exists only for FreeBSD compatibility purposes. 103 * 104 * The value IP_PORTRANGE_LOW changes the range to the "low" are 105 * that is (by convention) restricted to privileged processes. 106 * This convention is based on "vouchsafe" principles only. 107 * It is only secure if you trust the remote host to restrict these ports. 108 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 109 */ 110 #if __BSD_VISIBLE 111 #define IPV6PORT_RESERVED 1024 112 #define IPV6PORT_ANONMIN 49152 113 #define IPV6PORT_ANONMAX 65535 114 #define IPV6PORT_RESERVEDMIN 600 115 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 116 #endif 117 118 /* 119 * IPv6 address 120 */ 121 struct in6_addr { 122 union { 123 uint8_t __u6_addr8[16]; 124 uint16_t __u6_addr16[8]; 125 uint32_t __u6_addr32[4]; 126 } __u6_addr; /* 128-bit IP6 address */ 127 }; 128 129 #define s6_addr __u6_addr.__u6_addr8 130 #ifdef _KERNEL /* XXX nonstandard */ 131 #define s6_addr8 __u6_addr.__u6_addr8 132 #define s6_addr16 __u6_addr.__u6_addr16 133 #define s6_addr32 __u6_addr.__u6_addr32 134 #endif 135 136 #define INET6_ADDRSTRLEN 46 137 138 /* 139 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 140 */ 141 142 /* 143 * Socket address for IPv6 144 */ 145 #if __BSD_VISIBLE 146 #define SIN6_LEN 147 #endif 148 149 struct sockaddr_in6 { 150 uint8_t sin6_len; /* length of this struct */ 151 sa_family_t sin6_family; /* AF_INET6 */ 152 in_port_t sin6_port; /* Transport layer port # */ 153 uint32_t sin6_flowinfo; /* IP6 flow information */ 154 struct in6_addr sin6_addr; /* IP6 address */ 155 uint32_t sin6_scope_id; /* scope zone index */ 156 }; 157 158 /* 159 * Local definition for masks 160 */ 161 #ifdef _KERNEL /* XXX nonstandard */ 162 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 163 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 164 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 165 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 167 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 168 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 169 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 171 #endif 172 173 #ifdef _KERNEL 174 extern const struct sockaddr_in6 sa6_any; 175 176 extern const struct in6_addr in6mask0; 177 extern const struct in6_addr in6mask32; 178 extern const struct in6_addr in6mask64; 179 extern const struct in6_addr in6mask96; 180 extern const struct in6_addr in6mask128; 181 #endif /* _KERNEL */ 182 183 /* 184 * Macros started with IPV6_ADDR is KAME local 185 */ 186 #ifdef _KERNEL /* XXX nonstandard */ 187 #if _BYTE_ORDER == _BIG_ENDIAN 188 #define IPV6_ADDR_INT32_ONE 1 189 #define IPV6_ADDR_INT32_TWO 2 190 #define IPV6_ADDR_INT32_MNL 0xff010000 191 #define IPV6_ADDR_INT32_MLL 0xff020000 192 #define IPV6_ADDR_INT32_SMP 0x0000ffff 193 #define IPV6_ADDR_INT16_ULL 0xfe80 194 #define IPV6_ADDR_INT16_USL 0xfec0 195 #define IPV6_ADDR_INT16_MLL 0xff02 196 #elif _BYTE_ORDER == _LITTLE_ENDIAN 197 #define IPV6_ADDR_INT32_ONE 0x01000000 198 #define IPV6_ADDR_INT32_TWO 0x02000000 199 #define IPV6_ADDR_INT32_MNL 0x000001ff 200 #define IPV6_ADDR_INT32_MLL 0x000002ff 201 #define IPV6_ADDR_INT32_SMP 0xffff0000 202 #define IPV6_ADDR_INT16_ULL 0x80fe 203 #define IPV6_ADDR_INT16_USL 0xc0fe 204 #define IPV6_ADDR_INT16_MLL 0x02ff 205 #endif 206 #endif 207 208 /* 209 * Definition of some useful macros to handle IP6 addresses 210 */ 211 #if __BSD_VISIBLE 212 #define IN6ADDR_ANY_INIT \ 213 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 215 #define IN6ADDR_LOOPBACK_INIT \ 216 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 218 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 219 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 220 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 221 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 222 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 223 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 224 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 225 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 226 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 227 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 228 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 229 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 230 #endif 231 232 extern const struct in6_addr in6addr_any; 233 extern const struct in6_addr in6addr_loopback; 234 #if __BSD_VISIBLE 235 extern const struct in6_addr in6addr_nodelocal_allnodes; 236 extern const struct in6_addr in6addr_linklocal_allnodes; 237 extern const struct in6_addr in6addr_linklocal_allrouters; 238 #endif 239 240 /* 241 * Equality 242 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 243 * does not supply memcmp(). For userland memcmp() is preferred as it is 244 * in ANSI standard. 245 */ 246 #ifdef _KERNEL 247 #define IN6_ARE_ADDR_EQUAL(a, b) \ 248 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 249 #else 250 #if __BSD_VISIBLE 251 #define IN6_ARE_ADDR_EQUAL(a, b) \ 252 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 253 #endif 254 #endif 255 256 #ifdef _KERNEL /* non standard */ 257 /* see if two addresses are equal in a scope-conscious manner. */ 258 #define SA6_ARE_ADDR_EQUAL(a, b) \ 259 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 260 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 261 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 262 #endif 263 264 /* 265 * Unspecified 266 */ 267 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 268 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 269 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 270 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 271 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 272 273 /* 274 * Loopback 275 */ 276 #define IN6_IS_ADDR_LOOPBACK(a) \ 277 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 278 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 279 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 280 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 281 282 /* 283 * IPv4 compatible 284 */ 285 #define IN6_IS_ADDR_V4COMPAT(a) \ 286 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 287 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 288 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 289 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 290 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 291 292 /* 293 * Mapped 294 */ 295 #define IN6_IS_ADDR_V4MAPPED(a) \ 296 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 297 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 298 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 299 300 /* 301 * KAME Scope Values 302 */ 303 304 #ifdef _KERNEL /* XXX nonstandard */ 305 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 306 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 307 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 308 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 309 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 310 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 311 #else 312 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 313 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 314 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 315 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 316 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 317 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 318 #endif 319 320 /* 321 * Unicast Scope 322 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 323 */ 324 #define IN6_IS_ADDR_LINKLOCAL(a) \ 325 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 326 #define IN6_IS_ADDR_SITELOCAL(a) \ 327 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 328 329 /* 330 * Multicast 331 */ 332 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 333 334 #ifdef _KERNEL /* XXX nonstandard */ 335 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 336 #else 337 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 338 #endif 339 340 /* 341 * Multicast Scope 342 */ 343 #ifdef _KERNEL /* refers nonstandard items */ 344 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 347 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 348 (IN6_IS_ADDR_MULTICAST(a) && \ 349 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 350 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 351 (IN6_IS_ADDR_MULTICAST(a) && \ 352 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 353 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 354 (IN6_IS_ADDR_MULTICAST(a) && \ 355 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 356 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 357 (IN6_IS_ADDR_MULTICAST(a) && \ 358 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 359 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 360 (IN6_IS_ADDR_MULTICAST(a) && \ 361 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 362 #else 363 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 364 (IN6_IS_ADDR_MULTICAST(a) && \ 365 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 366 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 367 (IN6_IS_ADDR_MULTICAST(a) && \ 368 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 369 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 370 (IN6_IS_ADDR_MULTICAST(a) && \ 371 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 372 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 373 (IN6_IS_ADDR_MULTICAST(a) && \ 374 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 375 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 376 (IN6_IS_ADDR_MULTICAST(a) && \ 377 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 378 #endif 379 380 #ifdef _KERNEL /* nonstandard */ 381 /* 382 * KAME Scope 383 */ 384 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 385 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 386 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 387 388 #define IFA6_IS_DEPRECATED(a) \ 389 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 390 (a)->ia6_lifetime.ia6t_preferred < time_second) 391 #define IFA6_IS_INVALID(a) \ 392 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 393 (a)->ia6_lifetime.ia6t_expire < time_second) 394 #endif /* _KERNEL */ 395 396 /* 397 * IP6 route structure 398 */ 399 #if __BSD_VISIBLE 400 struct route_in6 { 401 struct rtentry *ro_rt; 402 struct sockaddr_in6 ro_dst; 403 }; 404 #endif 405 406 /* 407 * Options for use with [gs]etsockopt at the IPV6 level. 408 * First word of comment is data type; bool is stored in int. 409 */ 410 /* no hdrincl */ 411 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 412 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 413 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 414 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 415 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 416 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 417 #endif 418 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 419 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 420 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 421 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 422 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 423 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 424 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 425 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 426 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 427 /* RFC2292 options */ 428 #ifdef _KERNEL 429 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 430 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 431 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 432 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 433 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 434 #define IPV6_2292RTHDR 24 /* bool; routing header */ 435 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 436 #endif 437 438 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 439 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 440 #ifndef _KERNEL 441 #define IPV6_BINDV6ONLY IPV6_V6ONLY 442 #endif 443 444 #if 1 /* IPSEC */ 445 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 446 #endif 447 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 448 449 #if 1 /* IPV6FIREWALL */ 450 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 451 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 452 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 453 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 454 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 455 #endif 456 457 /* new socket options introduced in RFC2292bis */ 458 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 459 460 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 461 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 462 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 463 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 464 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 465 #ifdef _KERNEL 466 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 467 #endif 468 469 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 470 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 471 472 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 473 4 bytes int; MTU notification (cmsg) */ 474 #if 0 /*obsoleted during 2292bis -> 3542*/ 475 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 476 (cmsg only/not in of RFC3542) */ 477 #endif 478 479 /* more new socket options introduced in RFC2292bis */ 480 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 481 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 482 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 483 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 484 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 485 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 486 #if 0 487 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 488 /* obsoleted by 2292bis */ 489 #endif 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 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 503 504 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 505 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 506 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 507 508 /* 509 * Defaults and limits for options 510 */ 511 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 512 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 513 514 /* 515 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 516 */ 517 struct ipv6_mreq { 518 struct in6_addr ipv6mr_multiaddr; 519 unsigned int ipv6mr_interface; 520 }; 521 522 /* 523 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 524 */ 525 struct in6_pktinfo { 526 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 527 unsigned int ipi6_ifindex; /* send/recv interface index */ 528 }; 529 530 /* 531 * Control structure for IPV6_RECVPATHMTU socket option. 532 */ 533 struct ip6_mtuinfo { 534 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 535 uint32_t ip6m_mtu; 536 }; 537 538 /* 539 * Argument for IPV6_PORTRANGE: 540 * - which range to search when port is unspecified at bind() or connect() 541 */ 542 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 543 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 544 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 545 546 #if __BSD_VISIBLE 547 /* 548 * Definitions for inet6 sysctl operations. 549 * 550 * Third level is protocol number. 551 * Fourth level is desired variable within that protocol. 552 */ 553 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 554 555 /* 556 * Names for IP sysctl objects 557 */ 558 #define IPV6CTL_FORWARDING 1 /* act as router */ 559 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 560 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 561 #ifdef notyet 562 #define IPV6CTL_DEFMTU 4 /* default MTU */ 563 #endif 564 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 565 #define IPV6CTL_STATS 6 /* stats */ 566 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 567 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 568 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 569 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 570 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 571 #define IPV6CTL_ACCEPT_RTADV 12 572 #define IPV6CTL_KEEPFAITH 13 573 #define IPV6CTL_LOG_INTERVAL 14 574 #define IPV6CTL_HDRNESTLIMIT 15 575 #define IPV6CTL_DAD_COUNT 16 576 #define IPV6CTL_AUTO_FLOWLABEL 17 577 #define IPV6CTL_DEFMCASTHLIM 18 578 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 579 #define IPV6CTL_KAME_VERSION 20 580 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 581 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 582 #if 0 /* obsolete */ 583 #define IPV6CTL_MAPPED_ADDR 23 584 #endif 585 #define IPV6CTL_V6ONLY 24 586 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 587 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 588 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 589 590 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 591 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 592 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 593 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 594 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 595 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 596 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 597 598 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 599 600 /* New entries should be added here from current IPV6CTL_MAXID value. */ 601 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 602 #define IPV6CTL_MAXID 42 603 #endif /* __BSD_VISIBLE */ 604 605 /* 606 * Redefinition of mbuf flags 607 */ 608 #define M_AUTHIPHDR M_PROTO2 609 #define M_DECRYPTED M_PROTO3 610 #define M_LOOP M_PROTO4 611 #define M_AUTHIPDGM M_PROTO5 612 613 #ifdef _KERNEL 614 struct cmsghdr; 615 616 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 617 int in6_localaddr __P((struct in6_addr *)); 618 int in6_addrscope __P((struct in6_addr *)); 619 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 620 extern void in6_if_up __P((struct ifnet *)); 621 struct sockaddr; 622 extern u_char ip6_protox[]; 623 624 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 625 struct sockaddr_in6 *sin6)); 626 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 627 struct sockaddr_in6 *sin6)); 628 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 629 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 630 extern void addrsel_policy_init __P((void)); 631 632 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 633 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 634 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 635 636 extern int (*faithprefix_p)(struct in6_addr *); 637 #endif /* _KERNEL */ 638 639 #ifndef _SIZE_T_DECLARED 640 typedef __size_t size_t; 641 #define _SIZE_T_DECLARED 642 #endif 643 644 #ifndef _SOCKLEN_T_DECLARED 645 typedef __socklen_t socklen_t; 646 #define _SOCKLEN_T_DECLARED 647 #endif 648 649 #if __BSD_VISIBLE 650 651 __BEGIN_DECLS 652 struct cmsghdr; 653 654 extern int inet6_option_space __P((int)); 655 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 656 extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 657 int, int)); 658 extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 659 extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 660 extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 661 662 extern size_t inet6_rthdr_space __P((int, int)); 663 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 664 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 665 unsigned int)); 666 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 667 #if 0 /* not implemented yet */ 668 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 669 #endif 670 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 671 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 672 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 673 674 extern int inet6_opt_init __P((void *, socklen_t)); 675 extern int inet6_opt_append __P((void *, socklen_t, int, uint8_t, socklen_t, 676 uint8_t, void **)); 677 extern int inet6_opt_finish __P((void *, socklen_t, int)); 678 extern int inet6_opt_set_val __P((void *, int, void *, socklen_t)); 679 680 extern int inet6_opt_next __P((void *, socklen_t, int, uint8_t *, socklen_t *, 681 void **)); 682 extern int inet6_opt_find __P((void *, socklen_t, int, uint8_t, socklen_t *, 683 void **)); 684 extern int inet6_opt_get_val __P((void *, int, void *, socklen_t)); 685 extern socklen_t inet6_rth_space __P((int, int)); 686 extern void *inet6_rth_init __P((void *, socklen_t, int, int)); 687 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 688 extern int inet6_rth_reverse __P((const void *, void *)); 689 extern int inet6_rth_segments __P((const void *)); 690 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 691 __END_DECLS 692 693 #endif /* __BSD_VISIBLE */ 694 695 #endif /* !_NETINET6_IN6_H_ */ 696