in6.h revision 1.23
1 /* $NetBSD: in6.h,v 1.23 2001/03/02 04:52:54 itojun Exp $ */ 2 /* $KAME: in6.h,v 1.57 2000/08/26 10:00:45 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 /* 76 * Identification of the network protocol stack 77 */ 78 #define __KAME__ 79 #define __KAME_VERSION "NetBSD-current" 80 81 /* 82 * Local port number conventions: 83 * 84 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 85 * unless a kernel is compiled with IPNOPRIVPORTS defined. 86 * 87 * When a user does a bind(2) or connect(2) with a port number of zero, 88 * a non-conflicting local port address is chosen. 89 * 90 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 91 * that is settable by sysctl(3); net.inet.ip.anonportmin and 92 * net.inet.ip.anonportmax respectively. 93 * 94 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 95 * default assignment range. 96 * 97 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 98 * 99 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 100 * and exists only for FreeBSD compatibility purposes. 101 * 102 * The value IP_PORTRANGE_LOW changes the range to the "low" are 103 * that is (by convention) restricted to privileged processes. 104 * This convention is based on "vouchsafe" principles only. 105 * It is only secure if you trust the remote host to restrict these ports. 106 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 107 */ 108 109 #define IPV6PORT_RESERVED 1024 110 #define IPV6PORT_ANONMIN 49152 111 #define IPV6PORT_ANONMAX 65535 112 #define IPV6PORT_RESERVEDMIN 600 113 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 114 115 /* 116 * IPv6 address 117 */ 118 struct in6_addr { 119 union { 120 u_int8_t __u6_addr8[16]; 121 u_int16_t __u6_addr16[8]; 122 u_int32_t __u6_addr32[4]; 123 } __u6_addr; /* 128-bit IP6 address */ 124 }; 125 126 #define s6_addr __u6_addr.__u6_addr8 127 #ifdef _KERNEL /*XXX nonstandard*/ 128 #define s6_addr8 __u6_addr.__u6_addr8 129 #define s6_addr16 __u6_addr.__u6_addr16 130 #define s6_addr32 __u6_addr.__u6_addr32 131 #endif 132 133 #define INET6_ADDRSTRLEN 46 134 135 /* 136 * Socket address for IPv6 137 */ 138 #ifndef _XOPEN_SOURCE 139 #define SIN6_LEN 140 #endif 141 struct sockaddr_in6 { 142 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 143 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 144 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 145 u_int32_t sin6_flowinfo; /* IP6 flow information */ 146 struct in6_addr sin6_addr; /* IP6 address */ 147 u_int32_t sin6_scope_id; /* intface scope id */ 148 }; 149 150 /* 151 * Local definition for masks 152 */ 153 #ifdef _KERNEL /*XXX nonstandard*/ 154 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 155 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 156 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 157 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 158 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 159 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 160 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 161 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 163 #endif 164 165 #ifdef _KERNEL 166 extern const struct sockaddr_in6 sa6_any; 167 168 extern const struct in6_addr in6mask0; 169 extern const struct in6_addr in6mask32; 170 extern const struct in6_addr in6mask64; 171 extern const struct in6_addr in6mask96; 172 extern const struct in6_addr in6mask128; 173 #endif /* _KERNEL */ 174 175 /* 176 * Macros started with IPV6_ADDR is KAME local 177 */ 178 #ifdef _KERNEL /*XXX nonstandard*/ 179 #if BYTE_ORDER == BIG_ENDIAN 180 #define IPV6_ADDR_INT32_ONE 1 181 #define IPV6_ADDR_INT32_TWO 2 182 #define IPV6_ADDR_INT32_MNL 0xff010000 183 #define IPV6_ADDR_INT32_MLL 0xff020000 184 #define IPV6_ADDR_INT32_SMP 0x0000ffff 185 #define IPV6_ADDR_INT16_ULL 0xfe80 186 #define IPV6_ADDR_INT16_USL 0xfec0 187 #define IPV6_ADDR_INT16_MLL 0xff02 188 #elif BYTE_ORDER == LITTLE_ENDIAN 189 #define IPV6_ADDR_INT32_ONE 0x01000000 190 #define IPV6_ADDR_INT32_TWO 0x02000000 191 #define IPV6_ADDR_INT32_MNL 0x000001ff 192 #define IPV6_ADDR_INT32_MLL 0x000002ff 193 #define IPV6_ADDR_INT32_SMP 0xffff0000 194 #define IPV6_ADDR_INT16_ULL 0x80fe 195 #define IPV6_ADDR_INT16_USL 0xc0fe 196 #define IPV6_ADDR_INT16_MLL 0x02ff 197 #endif 198 #endif 199 200 /* 201 * Definition of some useful macros to handle IP6 addresses 202 */ 203 #define IN6ADDR_ANY_INIT \ 204 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 206 #define IN6ADDR_LOOPBACK_INIT \ 207 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 209 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 210 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 212 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 213 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 215 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 216 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 218 219 extern const struct in6_addr in6addr_any; 220 extern const struct in6_addr in6addr_loopback; 221 extern const struct in6_addr in6addr_nodelocal_allnodes; 222 extern const struct in6_addr in6addr_linklocal_allnodes; 223 extern const struct in6_addr in6addr_linklocal_allrouters; 224 225 /* 226 * Equality 227 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 228 * does not supply memcmp(). For userland memcmp() is preferred as it is 229 * in ANSI standard. 230 */ 231 #ifdef _KERNEL 232 #define IN6_ARE_ADDR_EQUAL(a, b) \ 233 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 234 #else 235 #define IN6_ARE_ADDR_EQUAL(a, b) \ 236 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 237 #endif 238 239 /* 240 * Unspecified 241 */ 242 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 243 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 244 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 245 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 246 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) == 0)) 247 248 /* 249 * Loopback 250 */ 251 #define IN6_IS_ADDR_LOOPBACK(a) \ 252 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 253 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 254 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 255 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) == ntohl(1))) 256 257 /* 258 * IPv4 compatible 259 */ 260 #define IN6_IS_ADDR_V4COMPAT(a) \ 261 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 262 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 263 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 264 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) != 0) && \ 265 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) != ntohl(1))) 266 267 /* 268 * Mapped 269 */ 270 #define IN6_IS_ADDR_V4MAPPED(a) \ 271 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 272 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 273 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 274 275 /* 276 * KAME Scope Values 277 */ 278 279 #ifdef _KERNEL /*XXX nonstandard*/ 280 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 281 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 282 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 283 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 284 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 285 #else 286 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 287 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 288 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 289 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 290 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 291 #endif 292 293 /* 294 * Unicast Scope 295 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 296 */ 297 #define IN6_IS_ADDR_LINKLOCAL(a) \ 298 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 299 #define IN6_IS_ADDR_SITELOCAL(a) \ 300 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 301 302 /* 303 * Multicast 304 */ 305 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 306 307 #ifdef _KERNEL /*XXX nonstandard*/ 308 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 309 #else 310 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 311 #endif 312 313 /* 314 * Multicast Scope 315 */ 316 #ifdef _KERNEL /*refers nonstandard items */ 317 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 320 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 323 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 326 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 327 (IN6_IS_ADDR_MULTICAST(a) && \ 328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 329 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 330 (IN6_IS_ADDR_MULTICAST(a) && \ 331 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 332 #else 333 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 336 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 339 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 342 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 345 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 348 #endif 349 350 /* 351 * Wildcard Socket 352 */ 353 #if 0 /*pre-RFC2553*/ 354 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 355 #endif 356 357 /* 358 * KAME Scope 359 */ 360 #ifdef _KERNEL /*nonstandard*/ 361 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 362 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 363 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 364 #endif 365 366 /* 367 * IP6 route structure 368 */ 369 #ifndef _XOPEN_SOURCE 370 struct route_in6 { 371 struct rtentry *ro_rt; 372 struct sockaddr_in6 ro_dst; 373 }; 374 #endif 375 376 /* 377 * Options for use with [gs]etsockopt at the IPV6 level. 378 * First word of comment is data type; bool is stored in int. 379 */ 380 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 381 /* no hdrincl */ 382 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 383 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 384 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 385 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 386 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 387 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 388 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 389 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 390 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 391 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 392 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 393 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 394 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 395 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 396 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 397 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 398 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 399 #define IPV6_DSTOPTS 23 /* bool; destination option */ 400 #define IPV6_RTHDR 24 /* bool; routing header */ 401 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 402 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 403 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 404 405 #if 1 /*IPSEC*/ 406 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 407 #endif 408 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 409 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 410 411 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 412 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 413 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 414 415 /* 416 * Defaults and limits for options 417 */ 418 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 419 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 420 421 /* 422 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 423 */ 424 struct ipv6_mreq { 425 struct in6_addr ipv6mr_multiaddr; 426 unsigned int ipv6mr_interface; 427 }; 428 429 /* 430 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 431 */ 432 struct in6_pktinfo { 433 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 434 unsigned int ipi6_ifindex; /* send/recv interface index */ 435 }; 436 437 /* 438 * Argument for IPV6_PORTRANGE: 439 * - which range to search when port is unspecified at bind() or connect() 440 */ 441 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 442 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 443 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 444 445 #ifndef _XOPEN_SOURCE 446 /* 447 * Definitions for inet6 sysctl operations. 448 * 449 * Third level is protocol number. 450 * Fourth level is desired variable within that protocol. 451 */ 452 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 453 454 #define CTL_IPV6PROTO_NAMES { \ 455 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 456 { 0, 0 }, \ 457 { "tcp6", CTLTYPE_NODE }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 462 { 0, 0 }, \ 463 { 0, 0 }, \ 464 { "udp6", CTLTYPE_NODE }, \ 465 { 0, 0 }, \ 466 { 0, 0 }, \ 467 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \ 472 { "ip6", CTLTYPE_NODE }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 477 { 0, 0 }, \ 478 { "ipsec6", CTLTYPE_NODE }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, \ 485 { "icmp6", CTLTYPE_NODE }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { "pim6", CTLTYPE_NODE }, \ 499 } 500 501 /* 502 * Names for IP sysctl objects 503 */ 504 #define IPV6CTL_FORWARDING 1 /* act as router */ 505 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 506 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 507 #ifdef notyet 508 #define IPV6CTL_DEFMTU 4 /* default MTU */ 509 #endif 510 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 511 #define IPV6CTL_STATS 6 /* stats */ 512 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 513 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 514 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 515 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 516 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 517 #define IPV6CTL_ACCEPT_RTADV 12 518 #define IPV6CTL_KEEPFAITH 13 519 #define IPV6CTL_LOG_INTERVAL 14 520 #define IPV6CTL_HDRNESTLIMIT 15 521 #define IPV6CTL_DAD_COUNT 16 522 #define IPV6CTL_AUTO_FLOWLABEL 17 523 #define IPV6CTL_DEFMCASTHLIM 18 524 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 525 #define IPV6CTL_KAME_VERSION 20 526 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 527 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 528 #define IPV6CTL_BINDV6ONLY 24 529 /* 25 to 27: reserved */ 530 #define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */ 531 #define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */ 532 #define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */ 533 #define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */ 534 /* New entries should be added here from current IPV6CTL_MAXID value. */ 535 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 536 #define IPV6CTL_MAXID 32 537 538 #define IPV6CTL_NAMES { \ 539 { 0, 0 }, \ 540 { "forwarding", CTLTYPE_INT }, \ 541 { "redirect", CTLTYPE_INT }, \ 542 { "hlim", CTLTYPE_INT }, \ 543 { "mtu", CTLTYPE_INT }, \ 544 { "forwsrcrt", CTLTYPE_INT }, \ 545 { 0, 0 }, \ 546 { 0, 0 }, \ 547 { "mrtproto", CTLTYPE_INT }, \ 548 { "maxfragpackets", CTLTYPE_INT }, \ 549 { "sourcecheck", CTLTYPE_INT }, \ 550 { "sourcecheck_logint", CTLTYPE_INT }, \ 551 { "accept_rtadv", CTLTYPE_INT }, \ 552 { "keepfaith", CTLTYPE_INT }, \ 553 { "log_interval", CTLTYPE_INT }, \ 554 { "hdrnestlimit", CTLTYPE_INT }, \ 555 { "dad_count", CTLTYPE_INT }, \ 556 { "auto_flowlabel", CTLTYPE_INT }, \ 557 { "defmcasthlim", CTLTYPE_INT }, \ 558 { "gifhlim", CTLTYPE_INT }, \ 559 { "kame_version", CTLTYPE_STRING }, \ 560 { "use_deprecated", CTLTYPE_INT }, \ 561 { "rr_prune", CTLTYPE_INT }, \ 562 { 0, 0 }, \ 563 { "bindv6only", CTLTYPE_INT }, \ 564 { 0, 0 }, \ 565 { 0, 0 }, \ 566 { 0, 0 }, \ 567 { "anonportmin", CTLTYPE_INT }, \ 568 { "anonportmax", CTLTYPE_INT }, \ 569 { "lowportmin", CTLTYPE_INT }, \ 570 { "lowportmax", CTLTYPE_INT }, \ 571 } 572 573 #endif /* !_XOPEN_SOURCE */ 574 575 #ifdef _KERNEL 576 struct cmsghdr; 577 578 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 579 int in6_localaddr __P((struct in6_addr *)); 580 int in6_addrscope __P((struct in6_addr *)); 581 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 582 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 583 extern void in6_if_up __P((struct ifnet *)); 584 extern u_char ip6_protox[]; 585 586 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 587 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 588 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 589 #endif /* _KERNEL */ 590 591 __BEGIN_DECLS 592 struct cmsghdr; 593 594 extern int inet6_option_space __P((int)); 595 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 596 extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 597 int, int)); 598 extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 599 extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 600 extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, int)); 601 602 extern size_t inet6_rthdr_space __P((int, int)); 603 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 604 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 605 unsigned int)); 606 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 607 #if 0 /* not implemented yet */ 608 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 609 #endif 610 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 611 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 612 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 613 __END_DECLS 614 615 #endif /* !_NETINET6_IN6_H_ */ 616
Indexes created Sat Sep 27 22:09:54 GMT 2025