in6.h revision 62604
1/* $FreeBSD: head/sys/netinet6/in6.h 62604 2000-07-05 01:40:29Z itojun $ */ 2/* $KAME: in6.h,v 1.48 2000/06/26 15:55:32 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 "20000701/FreeBSD-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_ANONMIN 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 */ 122struct 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 145struct sockaddr_in6 { 146 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 147 u_int8_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 170extern const struct in6_addr in6mask0; 171extern const struct in6_addr in6mask32; 172extern const struct in6_addr in6mask64; 173extern const struct in6_addr in6mask96; 174extern 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 221extern const struct in6_addr in6addr_any; 222extern const struct in6_addr in6addr_loopback; 223extern const struct in6_addr in6addr_nodelocal_allnodes; 224extern const struct in6_addr in6addr_linklocal_allnodes; 225extern 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 *)(&(a)->s6_addr[0]) == 0) && \ 246 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 247 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 248 (*(u_int32_t *)(&(a)->s6_addr[12]) == 0)) 249 250/* 251 * Loopback 252 */ 253#define IN6_IS_ADDR_LOOPBACK(a) \ 254 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 255 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 256 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 257 (*(u_int32_t *)(&(a)->s6_addr[12]) == ntohl(1))) 258 259/* 260 * IPv4 compatible 261 */ 262#define IN6_IS_ADDR_V4COMPAT(a) \ 263 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 264 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 265 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 266 (*(u_int32_t *)(&(a)->s6_addr[12]) != 0) && \ 267 (*(u_int32_t *)(&(a)->s6_addr[12]) != ntohl(1))) 268 269/* 270 * Mapped 271 */ 272#define IN6_IS_ADDR_V4MAPPED(a) \ 273 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 274 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 275 (*(u_int32_t *)(&(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 * KAME Scope 354 */ 355#ifdef _KERNEL /*nonstandard*/ 356#define IN6_IS_SCOPE_LINKLOCAL(a) \ 357 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 358 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 359#endif 360 361/* 362 * IP6 route structure 363 */ 364#ifndef _XOPEN_SOURCE 365struct route_in6 { 366 struct rtentry *ro_rt; 367 struct sockaddr_in6 ro_dst; 368}; 369#endif 370 371/* 372 * Options for use with [gs]etsockopt at the IPV6 level. 373 * First word of comment is data type; bool is stored in int. 374 */ 375/* no hdrincl */ 376#if 0 /* the followings are relic in IPv4 and hence are disabled */ 377#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 378#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 379#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 380#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 381#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 382#endif 383#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 384#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 385#define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 386#define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 387#define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 388#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 389#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 390#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 391#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 392#define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 393#define IPV6_HOPLIMIT 20 /* bool; hop limit */ 394#define IPV6_NEXTHOP 21 /* bool; next hop addr */ 395#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 396#define IPV6_DSTOPTS 23 /* bool; destination option */ 397#define IPV6_RTHDR 24 /* bool; routing header */ 398#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 399#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 400#define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 401 402/* for IPsec */ 403#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 404#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 405 406/* for IPV6FIREWALL */ 407#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 408#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 409#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 410#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 411#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 412 413#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 414#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 415#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 416 417/* 418 * Defaults and limits for options 419 */ 420#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 421#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 422 423/* 424 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 425 */ 426struct ipv6_mreq { 427 struct in6_addr ipv6mr_multiaddr; 428 unsigned int ipv6mr_interface; 429}; 430 431/* 432 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 433 */ 434struct in6_pktinfo { 435 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 436 unsigned int ipi6_ifindex; /* send/recv interface index */ 437}; 438 439/* 440 * Argument for IPV6_PORTRANGE: 441 * - which range to search when port is unspecified at bind() or connect() 442 */ 443#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 444#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 445#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 446 447#ifndef _XOPEN_SOURCE 448/* 449 * Definitions for inet6 sysctl operations. 450 * 451 * Third level is protocol number. 452 * Fourth level is desired variable within that protocol. 453 */ 454#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 455 456#define CTL_IPV6PROTO_NAMES { \ 457 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 458 { 0, 0 }, \ 459 { "tcp6", CTLTYPE_NODE }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { 0, 0 }, \ 463 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 464 { 0, 0 }, \ 465 { 0, 0 }, \ 466 { "udp6", CTLTYPE_NODE }, \ 467 { 0, 0 }, \ 468 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 473 { 0, 0 }, \ 474 { "ip6", CTLTYPE_NODE }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, \ 477 { 0, 0 }, \ 478 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 479 { 0, 0 }, \ 480 { "ipsec6", CTLTYPE_NODE }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { "icmp6", CTLTYPE_NODE }, \ 488 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { 0, 0 }, \ 500 { "pim6", CTLTYPE_NODE }, \ 501} 502 503/* 504 * Names for IP sysctl objects 505 */ 506#define IPV6CTL_FORWARDING 1 /* act as router */ 507#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 508#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 509#ifdef notyet 510#define IPV6CTL_DEFMTU 4 /* default MTU */ 511#endif 512#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 513#define IPV6CTL_STATS 6 /* stats */ 514#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 515#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 516#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 517#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 518#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 519#define IPV6CTL_ACCEPT_RTADV 12 520#define IPV6CTL_KEEPFAITH 13 521#define IPV6CTL_LOG_INTERVAL 14 522#define IPV6CTL_HDRNESTLIMIT 15 523#define IPV6CTL_DAD_COUNT 16 524#define IPV6CTL_AUTO_FLOWLABEL 17 525#define IPV6CTL_DEFMCASTHLIM 18 526#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 527#define IPV6CTL_KAME_VERSION 20 528#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 529#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 530#define IPV6CTL_MAPPED_ADDR 23 531#ifdef notdef /*__NetBSD__ - reserved, don't delete*/ 532#define IPV6CTL_BINDV6ONLY 24 533#endif 534#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 535#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 536#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 537/* New entries should be added here from current IPV6CTL_MAXID value. */ 538#define IPV6CTL_MAXID 28 539#endif /* !_XOPEN_SOURCE */ 540 541/* 542 * Redefinition of mbuf flags 543 */ 544#define M_ANYCAST6 M_PROTO1 545#define M_AUTHIPHDR M_PROTO2 546#define M_DECRYPTED M_PROTO3 547#define M_LOOP M_PROTO4 548#define M_AUTHIPDGM M_PROTO5 549 550#ifdef _KERNEL 551struct cmsghdr; 552struct mbuf; 553struct ifnet; 554 555int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 556int in6_localaddr __P((struct in6_addr *)); 557int in6_addrscope __P((struct in6_addr *)); 558struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 559struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 560extern void in6_if_up __P((struct ifnet *)); 561struct sockaddr; 562 563void in6_sin6_2_sin __P((struct sockaddr_in *sin, 564 struct sockaddr_in6 *sin6)); 565void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 566 struct sockaddr_in6 *sin6)); 567void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 568void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 569 570#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 571#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 572#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 573#endif /* _KERNEL */ 574 575__BEGIN_DECLS 576struct cmsghdr; 577 578extern int inet6_option_space __P((int)); 579extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 580extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 581 int, int)); 582extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 583extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 584extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, 585 int)); 586 587extern size_t inet6_rthdr_space __P((int, int)); 588extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 589extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 590 u_int)); 591extern int inet6_rthdr_lasthop __P((struct cmsghdr *, u_int)); 592extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 593extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 594extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 595extern int inet6_rthdr_reverse __P((const struct cmsghdr *, 596 struct cmsghdr *)); 597__END_DECLS 598 599#endif /* !_NETINET6_IN6_H_ */ 600