in6.h revision 83934
1/* $FreeBSD: head/sys/netinet6/in6.h 83934 2001-09-25 18:40:52Z brooks $ */ 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 */ 110 111#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) 116 117/* 118 * IPv6 address 119 */ 120struct in6_addr { 121 union { 122 u_int8_t __u6_addr8[16]; 123 u_int16_t __u6_addr16[8]; 124 u_int32_t __u6_addr32[4]; 125 } __u6_addr; /* 128-bit IP6 address */ 126}; 127 128#define s6_addr __u6_addr.__u6_addr8 129#ifdef _KERNEL /*XXX nonstandard*/ 130#define s6_addr8 __u6_addr.__u6_addr8 131#define s6_addr16 __u6_addr.__u6_addr16 132#define s6_addr32 __u6_addr.__u6_addr32 133#endif 134 135#define INET6_ADDRSTRLEN 46 136 137/* 138 * Socket address for IPv6 139 */ 140#ifndef _XOPEN_SOURCE 141#define SIN6_LEN 142#endif 143struct sockaddr_in6 { 144 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 145 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */ 146 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 147 u_int32_t sin6_flowinfo; /* IP6 flow information */ 148 struct in6_addr sin6_addr; /* IP6 address */ 149 u_int32_t sin6_scope_id; /* scope zone index */ 150}; 151 152/* 153 * Local definition for masks 154 */ 155#ifdef _KERNEL /*XXX nonstandard*/ 156#define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 157#define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 158 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 159#define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 160 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 161#define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 163#define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 164 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 165#endif 166 167#ifdef _KERNEL 168extern const struct sockaddr_in6 sa6_any; 169 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#ifdef _KERNEL /* non standard */ 242/* see if two addresses are equal in a scope-conscious manner. */ 243#define SA6_ARE_ADDR_EQUAL(a, b) \ 244 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 245 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 246 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 247#endif 248 249/* 250 * Unspecified 251 */ 252#define IN6_IS_ADDR_UNSPECIFIED(a) \ 253 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 254 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 255 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 256 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 257 258/* 259 * Loopback 260 */ 261#define IN6_IS_ADDR_LOOPBACK(a) \ 262 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 263 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 264 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 265 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 266 267/* 268 * IPv4 compatible 269 */ 270#define IN6_IS_ADDR_V4COMPAT(a) \ 271 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 272 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 273 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 274 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 275 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 276 277/* 278 * Mapped 279 */ 280#define IN6_IS_ADDR_V4MAPPED(a) \ 281 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 282 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 283 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 284 285/* 286 * KAME Scope Values 287 */ 288 289#ifdef _KERNEL /*XXX nonstandard*/ 290#define IPV6_ADDR_SCOPE_NODELOCAL 0x01 291#define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 292#define IPV6_ADDR_SCOPE_SITELOCAL 0x05 293#define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 294#define IPV6_ADDR_SCOPE_GLOBAL 0x0e 295#else 296#define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 297#define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 298#define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 299#define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 300#define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 301#endif 302 303/* 304 * Unicast Scope 305 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 306 */ 307#define IN6_IS_ADDR_LINKLOCAL(a) \ 308 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 309#define IN6_IS_ADDR_SITELOCAL(a) \ 310 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 311 312/* 313 * Multicast 314 */ 315#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 316 317#ifdef _KERNEL /*XXX nonstandard*/ 318#define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 319#else 320#define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 321#endif 322 323/* 324 * Multicast Scope 325 */ 326#ifdef _KERNEL /*refers nonstandard items */ 327#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 330#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 333#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 336#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 339#define IN6_IS_ADDR_MC_GLOBAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 342#else 343#define IN6_IS_ADDR_MC_NODELOCAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 346#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 349#define IN6_IS_ADDR_MC_SITELOCAL(a) \ 350 (IN6_IS_ADDR_MULTICAST(a) && \ 351 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 352#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 353 (IN6_IS_ADDR_MULTICAST(a) && \ 354 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 355#define IN6_IS_ADDR_MC_GLOBAL(a) \ 356 (IN6_IS_ADDR_MULTICAST(a) && \ 357 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 358#endif 359 360#ifdef _KERNEL /*nonstandard*/ 361/* 362 * KAME Scope 363 */ 364#define IN6_IS_SCOPE_LINKLOCAL(a) \ 365 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 366 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 367 368#define IFA6_IS_DEPRECATED(a) \ 369 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 370 (a)->ia6_lifetime.ia6t_preferred < time_second) 371#define IFA6_IS_INVALID(a) \ 372 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 373 (a)->ia6_lifetime.ia6t_expire < time_second) 374#endif /* _KERNEL */ 375 376/* 377 * IP6 route structure 378 */ 379#ifndef _XOPEN_SOURCE 380struct route_in6 { 381 struct rtentry *ro_rt; 382 struct sockaddr_in6 ro_dst; 383}; 384#endif 385 386/* 387 * Options for use with [gs]etsockopt at the IPV6 level. 388 * First word of comment is data type; bool is stored in int. 389 */ 390/* no hdrincl */ 391#if 0 /* the followings are relic in IPv4 and hence are disabled */ 392#define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 393#define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 394#define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 395#define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 396#define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 397#endif 398#define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 399#define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 400#define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 401#define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 402#define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 403#define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 404#define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 405#define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 406#define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 407/* RFC2292 options */ 408#define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 409#define IPV6_HOPLIMIT 20 /* bool; hop limit */ 410#define IPV6_NEXTHOP 21 /* bool; next hop addr */ 411#define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 412#define IPV6_DSTOPTS 23 /* bool; destination option */ 413#define IPV6_RTHDR 24 /* bool; routing header */ 414#define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 415 416#define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 417#define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 418#ifndef _KERNEL 419#define IPV6_BINDV6ONLY IPV6_V6ONLY 420#endif 421 422#if 1 /*IPSEC*/ 423#define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 424#endif 425#define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 426 427#if 1 /*IPV6FIREWALL*/ 428#define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 429#define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 430#define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 431#define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 432#define IPV6_FW_GET 34 /* get entire firewall rule chain */ 433#endif 434 435/* to define items, should talk with KAME guys first, for *BSD compatibility */ 436 437#define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 438#define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 439#define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 440 441/* 442 * Defaults and limits for options 443 */ 444#define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 445#define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 446 447/* 448 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 449 */ 450struct ipv6_mreq { 451 struct in6_addr ipv6mr_multiaddr; 452 unsigned int ipv6mr_interface; 453}; 454 455/* 456 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 457 */ 458struct in6_pktinfo { 459 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 460 unsigned int ipi6_ifindex; /* send/recv interface index */ 461}; 462 463/* 464 * Argument for IPV6_PORTRANGE: 465 * - which range to search when port is unspecified at bind() or connect() 466 */ 467#define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 468#define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 469#define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 470 471#ifndef _XOPEN_SOURCE 472/* 473 * Definitions for inet6 sysctl operations. 474 * 475 * Third level is protocol number. 476 * Fourth level is desired variable within that protocol. 477 */ 478#define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 479 480#define CTL_IPV6PROTO_NAMES { \ 481 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 482 { 0, 0 }, \ 483 { "tcp6", CTLTYPE_NODE }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 488 { 0, 0 }, \ 489 { 0, 0 }, \ 490 { "udp6", CTLTYPE_NODE }, \ 491 { 0, 0 }, \ 492 { 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 { "ip6", CTLTYPE_NODE }, \ 499 { 0, 0 }, \ 500 { 0, 0 }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 503 { 0, 0 }, \ 504 { "ipsec6", CTLTYPE_NODE }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, \ 508 { 0, 0 }, \ 509 { 0, 0 }, \ 510 { 0, 0 }, \ 511 { "icmp6", CTLTYPE_NODE }, \ 512 { 0, 0 }, \ 513 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 514 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 516 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 517 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 518 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 519 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 520 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 521 { 0, 0 }, \ 522 { 0, 0 }, \ 523 { 0, 0 }, \ 524 { "pim6", CTLTYPE_NODE }, \ 525} 526 527/* 528 * Names for IP sysctl objects 529 */ 530#define IPV6CTL_FORWARDING 1 /* act as router */ 531#define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 532#define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 533#ifdef notyet 534#define IPV6CTL_DEFMTU 4 /* default MTU */ 535#endif 536#define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 537#define IPV6CTL_STATS 6 /* stats */ 538#define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 539#define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 540#define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 541#define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 542#define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 543#define IPV6CTL_ACCEPT_RTADV 12 544#define IPV6CTL_KEEPFAITH 13 545#define IPV6CTL_LOG_INTERVAL 14 546#define IPV6CTL_HDRNESTLIMIT 15 547#define IPV6CTL_DAD_COUNT 16 548#define IPV6CTL_AUTO_FLOWLABEL 17 549#define IPV6CTL_DEFMCASTHLIM 18 550#define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 551#define IPV6CTL_KAME_VERSION 20 552#define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 553#define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 554#if 0 /*obsolete*/ 555#define IPV6CTL_MAPPED_ADDR 23 556#endif 557#define IPV6CTL_V6ONLY 24 558#define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 559#define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 560#define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 561 562#define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 563#define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 564#define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 565#define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 566#define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 567 568/* New entries should be added here from current IPV6CTL_MAXID value. */ 569/* to define items, should talk with KAME guys first, for *BSD compatibility */ 570#define IPV6CTL_MAXID 37 571 572#endif /* !_XOPEN_SOURCE */ 573 574/* 575 * Redefinition of mbuf flags 576 */ 577#define M_AUTHIPHDR M_PROTO2 578#define M_DECRYPTED M_PROTO3 579#define M_LOOP M_PROTO4 580#define M_AUTHIPDGM M_PROTO5 581 582#ifdef _KERNEL 583struct cmsghdr; 584 585int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 586int in6_localaddr __P((struct in6_addr *)); 587int in6_addrscope __P((struct in6_addr *)); 588struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 589struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 590extern void in6_if_up __P((struct ifnet *)); 591struct sockaddr; 592 593void in6_sin6_2_sin __P((struct sockaddr_in *sin, 594 struct sockaddr_in6 *sin6)); 595void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 596 struct sockaddr_in6 *sin6)); 597void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 598void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 599 600#define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 601#define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 602#define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 603 604extern int (*faithprefix_p)(struct in6_addr *); 605#endif /* _KERNEL */ 606 607__BEGIN_DECLS 608struct cmsghdr; 609 610extern int inet6_option_space __P((int)); 611extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 612extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 613 int, int)); 614extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 615extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 616extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, int)); 617 618extern size_t inet6_rthdr_space __P((int, int)); 619extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 620extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 621 unsigned int)); 622extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 623#if 0 /* not implemented yet */ 624extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 625#endif 626extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 627extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 628extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 629 630extern int inet6_opt_init __P((void *, size_t)); 631extern int inet6_opt_append __P((void *, size_t, int, u_int8_t, 632 size_t, u_int8_t, void **)); 633extern int inet6_opt_finish __P((void *, size_t, int)); 634extern int inet6_opt_set_val __P((void *, size_t, void *, int)); 635 636extern int inet6_opt_next __P((void *, size_t, int, u_int8_t *, 637 size_t *, void **)); 638extern int inet6_opt_find __P((void *, size_t, int, u_int8_t, 639 size_t *, void **)); 640extern int inet6_opt_get_val __P((void *, size_t, void *, int)); 641extern size_t inet6_rth_space __P((int, int)); 642extern void *inet6_rth_init __P((void *, int, int, int)); 643extern int inet6_rth_add __P((void *, const struct in6_addr *)); 644extern int inet6_rth_reverse __P((const void *, void *)); 645extern int inet6_rth_segments __P((const void *)); 646extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 647__END_DECLS 648 649#endif /* !_NETINET6_IN6_H_ */ 650