in6.h revision 1.17
1 /* $NetBSD: in6.h,v 1.17 2000/07/06 17:42:55 christos Exp $ */ 2 /* $KAME: in6.h,v 1.44 2000/05/24 08:50:17 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" 70 #endif 71 72 #ifndef _NETINET6_IN6_H_ 73 #define _NETINET6_IN6_H_ 74 75 #ifndef _XOPEN_SOURCE 76 #include <sys/queue.h> 77 #endif 78 79 /* 80 * Identification of the network protocol stack 81 */ 82 #define __KAME__ 83 #define __KAME_VERSION "19991213/NetBSD-current" 84 85 /* 86 * Local port number conventions: 87 * 88 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 89 * unless a kernel is compiled with IPNOPRIVPORTS defined. 90 * 91 * When a user does a bind(2) or connect(2) with a port number of zero, 92 * a non-conflicting local port address is chosen. 93 * 94 * The default range is IPPORT_ANONMIX to IPPORT_ANONMAX, although 95 * that is settable by sysctl(3); net.inet.ip.anonportmin and 96 * net.inet.ip.anonportmax respectively. 97 * 98 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 99 * default assignment range. 100 * 101 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 102 * 103 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 104 * and exists only for FreeBSD compatibility purposes. 105 * 106 * The value IP_PORTRANGE_LOW changes the range to the "low" are 107 * that is (by convention) restricted to privileged processes. 108 * This convention is based on "vouchsafe" principles only. 109 * It is only secure if you trust the remote host to restrict these ports. 110 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 111 */ 112 113 #define IPV6PORT_RESERVED 1024 114 #define IPV6PORT_ANONMIN 49152 115 #define IPV6PORT_ANONMAX 65535 116 #define IPV6PORT_RESERVEDMIN 600 117 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 118 119 /* 120 * IPv6 address 121 */ 122 struct in6_addr { 123 union { 124 u_int8_t __u6_addr8[16]; 125 u_int16_t __u6_addr16[8]; 126 u_int32_t __u6_addr32[4]; 127 } __u6_addr; /* 128-bit IP6 address */ 128 }; 129 130 #define s6_addr __u6_addr.__u6_addr8 131 #ifdef _KERNEL /*XXX nonstandard*/ 132 #define s6_addr8 __u6_addr.__u6_addr8 133 #define s6_addr16 __u6_addr.__u6_addr16 134 #define s6_addr32 __u6_addr.__u6_addr32 135 #endif 136 137 #define INET6_ADDRSTRLEN 46 138 139 /* 140 * Socket address for IPv6 141 */ 142 #ifndef _XOPEN_SOURCE 143 #define SIN6_LEN 144 #endif 145 struct sockaddr_in6 { 146 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 147 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 148 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 149 u_int32_t sin6_flowinfo; /* IP6 flow information */ 150 struct in6_addr sin6_addr; /* IP6 address */ 151 u_int32_t sin6_scope_id; /* intface scope id */ 152 }; 153 154 /* 155 * Local definition for masks 156 */ 157 #ifdef _KERNEL /*XXX nonstandard*/ 158 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 159 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 160 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 161 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 163 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 164 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 165 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 167 #endif 168 169 #ifdef _KERNEL 170 extern const struct in6_addr in6mask0; 171 extern const struct in6_addr in6mask32; 172 extern const struct in6_addr in6mask64; 173 extern const struct in6_addr in6mask96; 174 extern const struct in6_addr in6mask128; 175 #endif /* _KERNEL */ 176 177 /* 178 * Macros started with IPV6_ADDR is KAME local 179 */ 180 #ifdef _KERNEL /*XXX nonstandard*/ 181 #if BYTE_ORDER == BIG_ENDIAN 182 #define IPV6_ADDR_INT32_ONE 1 183 #define IPV6_ADDR_INT32_TWO 2 184 #define IPV6_ADDR_INT32_MNL 0xff010000 185 #define IPV6_ADDR_INT32_MLL 0xff020000 186 #define IPV6_ADDR_INT32_SMP 0x0000ffff 187 #define IPV6_ADDR_INT16_ULL 0xfe80 188 #define IPV6_ADDR_INT16_USL 0xfec0 189 #define IPV6_ADDR_INT16_MLL 0xff02 190 #elif BYTE_ORDER == LITTLE_ENDIAN 191 #define IPV6_ADDR_INT32_ONE 0x01000000 192 #define IPV6_ADDR_INT32_TWO 0x02000000 193 #define IPV6_ADDR_INT32_MNL 0x000001ff 194 #define IPV6_ADDR_INT32_MLL 0x000002ff 195 #define IPV6_ADDR_INT32_SMP 0xffff0000 196 #define IPV6_ADDR_INT16_ULL 0x80fe 197 #define IPV6_ADDR_INT16_USL 0xc0fe 198 #define IPV6_ADDR_INT16_MLL 0x02ff 199 #endif 200 #endif 201 202 /* 203 * Definition of some useful macros to handle IP6 addresses 204 */ 205 #define IN6ADDR_ANY_INIT \ 206 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 207 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 208 #define IN6ADDR_LOOPBACK_INIT \ 209 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 211 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 212 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 213 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 214 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 215 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 216 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 217 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 218 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 219 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 220 221 extern const struct in6_addr in6addr_any; 222 extern const struct in6_addr in6addr_loopback; 223 extern const struct in6_addr in6addr_nodelocal_allnodes; 224 extern const struct in6_addr in6addr_linklocal_allnodes; 225 extern const struct in6_addr in6addr_linklocal_allrouters; 226 227 /* 228 * Equality 229 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 230 * does not supply memcmp(). For userland memcmp() is preferred as it is 231 * in ANSI standard. 232 */ 233 #ifdef _KERNEL 234 #define IN6_ARE_ADDR_EQUAL(a, b) \ 235 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 236 #else 237 #define IN6_ARE_ADDR_EQUAL(a, b) \ 238 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 239 #endif 240 241 /* 242 * Unspecified 243 */ 244 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 245 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 246 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 247 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 248 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) == 0)) 249 250 /* 251 * Loopback 252 */ 253 #define IN6_IS_ADDR_LOOPBACK(a) \ 254 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 255 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 256 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 257 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) == ntohl(1))) 258 259 /* 260 * IPv4 compatible 261 */ 262 #define IN6_IS_ADDR_V4COMPAT(a) \ 263 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 264 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 265 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 266 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) != 0) && \ 267 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) != ntohl(1))) 268 269 /* 270 * Mapped 271 */ 272 #define IN6_IS_ADDR_V4MAPPED(a) \ 273 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 274 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 275 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 276 277 /* 278 * KAME Scope Values 279 */ 280 281 #ifdef _KERNEL /*XXX nonstandard*/ 282 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 283 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 284 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 285 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 286 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 287 #else 288 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 289 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 290 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 291 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 292 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 293 #endif 294 295 /* 296 * Unicast Scope 297 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 298 */ 299 #define IN6_IS_ADDR_LINKLOCAL(a) \ 300 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 301 #define IN6_IS_ADDR_SITELOCAL(a) \ 302 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 303 304 /* 305 * Multicast 306 */ 307 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 308 309 #ifdef _KERNEL /*XXX nonstandard*/ 310 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 311 #else 312 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 313 #endif 314 315 /* 316 * Multicast Scope 317 */ 318 #ifdef _KERNEL /*refers nonstandard items */ 319 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 320 (IN6_IS_ADDR_MULTICAST(a) && \ 321 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 322 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 323 (IN6_IS_ADDR_MULTICAST(a) && \ 324 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 325 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 326 (IN6_IS_ADDR_MULTICAST(a) && \ 327 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 328 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 329 (IN6_IS_ADDR_MULTICAST(a) && \ 330 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 331 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 332 (IN6_IS_ADDR_MULTICAST(a) && \ 333 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 334 #else 335 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 336 (IN6_IS_ADDR_MULTICAST(a) && \ 337 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 338 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 341 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 342 (IN6_IS_ADDR_MULTICAST(a) && \ 343 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 344 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 347 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 348 (IN6_IS_ADDR_MULTICAST(a) && \ 349 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 350 #endif 351 352 /* 353 * Wildcard Socket 354 */ 355 #if 0 /*pre-RFC2553*/ 356 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 357 #endif 358 359 /* 360 * KAME Scope 361 */ 362 #ifdef _KERNEL /*nonstandard*/ 363 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 364 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 365 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 366 #endif 367 368 /* 369 * IP6 route structure 370 */ 371 #ifndef _XOPEN_SOURCE 372 struct route_in6 { 373 struct rtentry *ro_rt; 374 struct sockaddr_in6 ro_dst; 375 }; 376 #endif 377 378 /* 379 * Options for use with [gs]etsockopt at the IPV6 level. 380 * First word of comment is data type; bool is stored in int. 381 */ 382 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 383 /* no hdrincl */ 384 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 385 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 386 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 387 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 388 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 389 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 390 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 391 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 392 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 393 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 394 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 395 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 396 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 397 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 398 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 399 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 400 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 401 #define IPV6_DSTOPTS 23 /* bool; destination option */ 402 #define IPV6_RTHDR 24 /* bool; routing header */ 403 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 404 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 405 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 406 407 #if 1 /*IPSEC*/ 408 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 409 #endif 410 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 411 412 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 413 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 414 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 415 416 /* 417 * Defaults and limits for options 418 */ 419 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 420 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 421 422 /* 423 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 424 */ 425 struct ipv6_mreq { 426 struct in6_addr ipv6mr_multiaddr; 427 unsigned int ipv6mr_interface; 428 }; 429 430 /* 431 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 432 */ 433 struct in6_pktinfo { 434 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 435 unsigned int ipi6_ifindex; /* send/recv interface index */ 436 }; 437 438 /* 439 * Argument for IPV6_PORTRANGE: 440 * - which range to search when port is unspecified at bind() or connect() 441 */ 442 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 443 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 444 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 445 446 #ifndef _XOPEN_SOURCE 447 /* 448 * Definitions for inet6 sysctl operations. 449 * 450 * Third level is protocol number. 451 * Fourth level is desired variable within that protocol. 452 */ 453 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 454 455 #define CTL_IPV6PROTO_NAMES { \ 456 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 457 { 0, 0 }, \ 458 { "tcp6", CTLTYPE_NODE }, \ 459 { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 463 { 0, 0 }, \ 464 { 0, 0 }, \ 465 { "udp6", CTLTYPE_NODE }, \ 466 { 0, 0 }, \ 467 { 0, 0 }, \ 468 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 469 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 470 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 471 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 472 { 0, 0 }, \ 473 { "ip6", CTLTYPE_NODE }, \ 474 { 0, 0 }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, \ 477 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 478 { 0, 0 }, \ 479 { "ipsec6", CTLTYPE_NODE }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, \ 486 { "icmp6", CTLTYPE_NODE }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 489 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 490 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 491 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 492 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 493 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 494 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 495 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { "pim6", CTLTYPE_NODE }, \ 500 } 501 502 /* 503 * Names for IP sysctl objects 504 */ 505 #define IPV6CTL_FORWARDING 1 /* act as router */ 506 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 507 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 508 #ifdef notyet 509 #define IPV6CTL_DEFMTU 4 /* default MTU */ 510 #endif 511 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 512 #define IPV6CTL_STATS 6 /* stats */ 513 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 514 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 515 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 516 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 517 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 518 #define IPV6CTL_ACCEPT_RTADV 12 519 #define IPV6CTL_KEEPFAITH 13 520 #define IPV6CTL_LOG_INTERVAL 14 521 #define IPV6CTL_HDRNESTLIMIT 15 522 #define IPV6CTL_DAD_COUNT 16 523 #define IPV6CTL_AUTO_FLOWLABEL 17 524 #define IPV6CTL_DEFMCASTHLIM 18 525 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 526 #define IPV6CTL_KAME_VERSION 20 527 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 528 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 529 #define IPV6CTL_BINDV6ONLY 24 530 /* New entries should be added here from current IPV6CTL_MAXID value. */ 531 #define IPV6CTL_MAXID 25 532 533 #define IPV6CTL_NAMES { \ 534 { 0, 0 }, \ 535 { "forwarding", CTLTYPE_INT }, \ 536 { "redirect", CTLTYPE_INT }, \ 537 { "hlim", CTLTYPE_INT }, \ 538 { "mtu", CTLTYPE_INT }, \ 539 { "forwsrcrt", CTLTYPE_INT }, \ 540 { 0, 0 }, \ 541 { 0, 0 }, \ 542 { "mrtproto", CTLTYPE_INT }, \ 543 { "maxfragpackets", CTLTYPE_INT }, \ 544 { "sourcecheck", CTLTYPE_INT }, \ 545 { "sourcecheck_logint", CTLTYPE_INT }, \ 546 { "accept_rtadv", CTLTYPE_INT }, \ 547 { "keepfaith", CTLTYPE_INT }, \ 548 { "log_interval", CTLTYPE_INT }, \ 549 { "hdrnestlimit", CTLTYPE_INT }, \ 550 { "dad_count", CTLTYPE_INT }, \ 551 { "auto_flowlabel", CTLTYPE_INT }, \ 552 { "defmcasthlim", CTLTYPE_INT }, \ 553 { "gifhlim", CTLTYPE_INT }, \ 554 { "kame_version", CTLTYPE_STRING }, \ 555 { "use_deprecated", CTLTYPE_INT }, \ 556 { "rr_prune", CTLTYPE_INT }, \ 557 { 0, 0 }, \ 558 { "bindv6only", CTLTYPE_INT }, \ 559 } 560 561 #endif /* !_XOPEN_SOURCE */ 562 563 #ifdef _KERNEL 564 struct cmsghdr; 565 566 int in6_canforward __P((struct in6_addr *, struct in6_addr *)); 567 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 568 int in6_localaddr __P((struct in6_addr *)); 569 int in6_addrscope __P((struct in6_addr *)); 570 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 571 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 572 extern void in6_if_up __P((struct ifnet *)); 573 extern u_char ip6_protox[]; 574 575 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 576 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 577 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 578 #endif /* _KERNEL */ 579 580 __BEGIN_DECLS 581 struct cmsghdr; 582 583 extern int inet6_option_space(int); 584 extern int inet6_option_init(void *, struct cmsghdr **, int); 585 extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, int, int); 586 extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 587 extern int inet6_option_next(const struct cmsghdr *, u_int8_t **); 588 extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int); 589 590 extern size_t inet6_rthdr_space __P((int, int)); 591 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 592 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 593 unsigned int)); 594 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 595 #if 0 /* not implemented yet */ 596 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 597 #endif 598 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 599 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 600 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 601 __END_DECLS 602 603 #endif /* !_NETINET6_IN6_H_ */ 604
Indexes created Fri Sep 26 08:10:20 GMT 2025