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sys/netinet6/in6.h
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1 /* $FreeBSD: releng/5.1/sys/netinet6/in6.h 114259 2003-04-29 22:03:46Z mdodd $ */ 2 /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1982, 1986, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in.h 8.3 (Berkeley) 1/3/94 66 */ 67 68 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 69 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 70 #endif 71 72 #ifndef _NETINET6_IN6_H_ 73 #define _NETINET6_IN6_H_ 74 75 /* 76 * Identification of the network protocol stack 77 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 78 * has the table of implementation/integration differences. 79 */ 80 #define __KAME__ 81 #define __KAME_VERSION "20010528/FreeBSD" 82 83 /* 84 * Local port number conventions: 85 * 86 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 87 * unless a kernel is compiled with IPNOPRIVPORTS defined. 88 * 89 * When a user does a bind(2) or connect(2) with a port number of zero, 90 * a non-conflicting local port address is chosen. 91 * 92 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 93 * that is settable by sysctl(3); net.inet.ip.anonportmin and 94 * net.inet.ip.anonportmax respectively. 95 * 96 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 97 * default assignment range. 98 * 99 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 100 * 101 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 102 * and exists only for FreeBSD compatibility purposes. 103 * 104 * The value IP_PORTRANGE_LOW changes the range to the "low" are 105 * that is (by convention) restricted to privileged processes. 106 * This convention is based on "vouchsafe" principles only. 107 * It is only secure if you trust the remote host to restrict these ports. 108 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 109 */ 110 #if __BSD_VISIBLE 111 #define IPV6PORT_RESERVED 1024 112 #define IPV6PORT_ANONMIN 49152 113 #define IPV6PORT_ANONMAX 65535 114 #define IPV6PORT_RESERVEDMIN 600 115 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 116 #endif 117 118 /* 119 * IPv6 address 120 */ 121 struct in6_addr { 122 union { 123 uint8_t __u6_addr8[16]; 124 uint16_t __u6_addr16[8]; 125 uint32_t __u6_addr32[4]; 126 } __u6_addr; /* 128-bit IP6 address */ 127 }; 128 129 #define s6_addr __u6_addr.__u6_addr8 130 #ifdef _KERNEL /* XXX nonstandard */ 131 #define s6_addr8 __u6_addr.__u6_addr8 132 #define s6_addr16 __u6_addr.__u6_addr16 133 #define s6_addr32 __u6_addr.__u6_addr32 134 #endif 135 136 #define INET6_ADDRSTRLEN 46 137 138 /* 139 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 140 */ 141 142 /* 143 * Socket address for IPv6 144 */ 145 #if __BSD_VISIBLE 146 #define SIN6_LEN 147 #endif 148 149 struct sockaddr_in6 { 150 uint8_t sin6_len; /* length of this struct */ 151 sa_family_t sin6_family; /* AF_INET6 */ 152 in_port_t sin6_port; /* Transport layer port # */ 153 uint32_t sin6_flowinfo; /* IP6 flow information */ 154 struct in6_addr sin6_addr; /* IP6 address */ 155 uint32_t sin6_scope_id; /* scope zone index */ 156 }; 157 158 /* 159 * Local definition for masks 160 */ 161 #ifdef _KERNEL /* XXX nonstandard */ 162 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 163 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 164 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 165 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 167 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 168 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 169 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 171 #endif 172 173 #ifdef _KERNEL 174 extern const struct sockaddr_in6 sa6_any; 175 176 extern const struct in6_addr in6mask0; 177 extern const struct in6_addr in6mask32; 178 extern const struct in6_addr in6mask64; 179 extern const struct in6_addr in6mask96; 180 extern const struct in6_addr in6mask128; 181 #endif /* _KERNEL */ 182 183 /* 184 * Macros started with IPV6_ADDR is KAME local 185 */ 186 #ifdef _KERNEL /* XXX nonstandard */ 187 #if _BYTE_ORDER == _BIG_ENDIAN 188 #define IPV6_ADDR_INT32_ONE 1 189 #define IPV6_ADDR_INT32_TWO 2 190 #define IPV6_ADDR_INT32_MNL 0xff010000 191 #define IPV6_ADDR_INT32_MLL 0xff020000 192 #define IPV6_ADDR_INT32_SMP 0x0000ffff 193 #define IPV6_ADDR_INT16_ULL 0xfe80 194 #define IPV6_ADDR_INT16_USL 0xfec0 195 #define IPV6_ADDR_INT16_MLL 0xff02 196 #elif _BYTE_ORDER == _LITTLE_ENDIAN 197 #define IPV6_ADDR_INT32_ONE 0x01000000 198 #define IPV6_ADDR_INT32_TWO 0x02000000 199 #define IPV6_ADDR_INT32_MNL 0x000001ff 200 #define IPV6_ADDR_INT32_MLL 0x000002ff 201 #define IPV6_ADDR_INT32_SMP 0xffff0000 202 #define IPV6_ADDR_INT16_ULL 0x80fe 203 #define IPV6_ADDR_INT16_USL 0xc0fe 204 #define IPV6_ADDR_INT16_MLL 0x02ff 205 #endif 206 #endif 207 208 /* 209 * Definition of some useful macros to handle IP6 addresses 210 */ 211 #if __BSD_VISIBLE 212 #define IN6ADDR_ANY_INIT \ 213 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 215 #define IN6ADDR_LOOPBACK_INIT \ 216 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 218 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 219 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 220 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 221 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 222 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 223 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 224 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 225 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 226 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 227 #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \ 228 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 229 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}} 230 #endif 231 232 extern const struct in6_addr in6addr_any; 233 extern const struct in6_addr in6addr_loopback; 234 #if __BSD_VISIBLE 235 extern const struct in6_addr in6addr_nodelocal_allnodes; 236 extern const struct in6_addr in6addr_linklocal_allnodes; 237 extern const struct in6_addr in6addr_linklocal_allrouters; 238 #endif 239 240 /* 241 * Equality 242 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 243 * does not supply memcmp(). For userland memcmp() is preferred as it is 244 * in ANSI standard. 245 */ 246 #ifdef _KERNEL 247 #define IN6_ARE_ADDR_EQUAL(a, b) \ 248 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 249 #else 250 #if __BSD_VISIBLE 251 #define IN6_ARE_ADDR_EQUAL(a, b) \ 252 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 253 #endif 254 #endif 255 256 #ifdef _KERNEL /* non standard */ 257 /* see if two addresses are equal in a scope-conscious manner. */ 258 #define SA6_ARE_ADDR_EQUAL(a, b) \ 259 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 260 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 261 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 262 #endif 263 264 /* 265 * Unspecified 266 */ 267 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 268 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 269 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 270 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 271 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 272 273 /* 274 * Loopback 275 */ 276 #define IN6_IS_ADDR_LOOPBACK(a) \ 277 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 278 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 279 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 280 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 281 282 /* 283 * IPv4 compatible 284 */ 285 #define IN6_IS_ADDR_V4COMPAT(a) \ 286 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 287 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 288 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 289 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 290 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 291 292 /* 293 * Mapped 294 */ 295 #define IN6_IS_ADDR_V4MAPPED(a) \ 296 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 297 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 298 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 299 300 /* 301 * KAME Scope Values 302 */ 303 304 #ifdef _KERNEL /* XXX nonstandard */ 305 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 306 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 307 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 308 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 309 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 310 #else 311 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 312 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 313 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 314 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 315 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 316 #endif 317 318 /* 319 * Unicast Scope 320 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 321 */ 322 #define IN6_IS_ADDR_LINKLOCAL(a) \ 323 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 324 #define IN6_IS_ADDR_SITELOCAL(a) \ 325 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 326 327 /* 328 * Multicast 329 */ 330 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 331 332 #ifdef _KERNEL /* XXX nonstandard */ 333 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 334 #else 335 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 336 #endif 337 338 /* 339 * Multicast Scope 340 */ 341 #ifdef _KERNEL /* refers nonstandard items */ 342 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 345 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 348 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 349 (IN6_IS_ADDR_MULTICAST(a) && \ 350 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 351 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 352 (IN6_IS_ADDR_MULTICAST(a) && \ 353 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 354 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 355 (IN6_IS_ADDR_MULTICAST(a) && \ 356 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 357 #else 358 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 359 (IN6_IS_ADDR_MULTICAST(a) && \ 360 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 361 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 362 (IN6_IS_ADDR_MULTICAST(a) && \ 363 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 364 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 365 (IN6_IS_ADDR_MULTICAST(a) && \ 366 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 367 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 368 (IN6_IS_ADDR_MULTICAST(a) && \ 369 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 370 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 371 (IN6_IS_ADDR_MULTICAST(a) && \ 372 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 373 #endif 374 375 #ifdef _KERNEL /* nonstandard */ 376 /* 377 * KAME Scope 378 */ 379 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 380 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 381 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 382 383 #define IFA6_IS_DEPRECATED(a) \ 384 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 385 (a)->ia6_lifetime.ia6t_preferred < time_second) 386 #define IFA6_IS_INVALID(a) \ 387 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 388 (a)->ia6_lifetime.ia6t_expire < time_second) 389 #endif /* _KERNEL */ 390 391 /* 392 * IP6 route structure 393 */ 394 #if __BSD_VISIBLE 395 struct route_in6 { 396 struct rtentry *ro_rt; 397 struct sockaddr_in6 ro_dst; 398 }; 399 #endif 400 401 /* 402 * Options for use with [gs]etsockopt at the IPV6 level. 403 * First word of comment is data type; bool is stored in int. 404 */ 405 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 406 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 407 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 408 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 409 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 410 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 411 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 412 413 #if __BSD_VISIBLE 414 /* no hdrincl */ 415 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 416 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 417 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 418 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 419 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 420 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 421 #endif 422 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 423 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 424 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 425 /* RFC2292 options */ 426 #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 427 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 428 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 429 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 430 #define IPV6_DSTOPTS 23 /* bool; destination option */ 431 #define IPV6_RTHDR 24 /* bool; routing header */ 432 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 433 434 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 435 #ifndef _KERNEL 436 #define IPV6_BINDV6ONLY IPV6_V6ONLY 437 #endif 438 439 #if 1 /* IPSEC */ 440 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 441 #endif 442 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 443 444 #if 1 /* IPV6FIREWALL */ 445 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 446 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 447 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 448 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 449 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 450 #endif 451 452 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 453 454 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 455 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 456 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 457 458 /* 459 * Defaults and limits for options 460 */ 461 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 462 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 463 464 /* 465 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 466 */ 467 struct ipv6_mreq { 468 struct in6_addr ipv6mr_multiaddr; 469 unsigned int ipv6mr_interface; 470 }; 471 472 /* 473 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 474 */ 475 struct in6_pktinfo { 476 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 477 unsigned int ipi6_ifindex; /* send/recv interface index */ 478 }; 479 480 /* 481 * Argument for IPV6_PORTRANGE: 482 * - which range to search when port is unspecified at bind() or connect() 483 */ 484 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 485 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 486 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 487 488 /* 489 * Definitions for inet6 sysctl operations. 490 * 491 * Third level is protocol number. 492 * Fourth level is desired variable within that protocol. 493 */ 494 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 495 496 #define CTL_IPV6PROTO_NAMES { \ 497 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 498 { 0, 0 }, \ 499 { "tcp6", CTLTYPE_NODE }, \ 500 { 0, 0 }, \ 501 { 0, 0 }, \ 502 { 0, 0 }, \ 503 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { "udp6", CTLTYPE_NODE }, \ 507 { 0, 0 }, \ 508 { 0, 0 }, \ 509 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 510 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 511 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 512 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 513 { 0, 0 }, \ 514 { "ip6", CTLTYPE_NODE }, \ 515 { 0, 0 }, \ 516 { 0, 0 }, \ 517 { 0, 0 }, \ 518 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 519 { 0, 0 }, \ 520 { "ipsec6", CTLTYPE_NODE }, \ 521 { 0, 0 }, \ 522 { 0, 0 }, \ 523 { 0, 0 }, \ 524 { 0, 0 }, \ 525 { 0, 0 }, \ 526 { 0, 0 }, \ 527 { "icmp6", CTLTYPE_NODE }, \ 528 { 0, 0 }, \ 529 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 530 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 531 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 532 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 533 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 534 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 535 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 536 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 537 { 0, 0 }, \ 538 { 0, 0 }, \ 539 { 0, 0 }, \ 540 { "pim6", CTLTYPE_NODE }, \ 541 } 542 543 /* 544 * Names for IP sysctl objects 545 */ 546 #define IPV6CTL_FORWARDING 1 /* act as router */ 547 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 548 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 549 #ifdef notyet 550 #define IPV6CTL_DEFMTU 4 /* default MTU */ 551 #endif 552 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 553 #define IPV6CTL_STATS 6 /* stats */ 554 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 555 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 556 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 557 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 558 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 559 #define IPV6CTL_ACCEPT_RTADV 12 560 #define IPV6CTL_KEEPFAITH 13 561 #define IPV6CTL_LOG_INTERVAL 14 562 #define IPV6CTL_HDRNESTLIMIT 15 563 #define IPV6CTL_DAD_COUNT 16 564 #define IPV6CTL_AUTO_FLOWLABEL 17 565 #define IPV6CTL_DEFMCASTHLIM 18 566 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 567 #define IPV6CTL_KAME_VERSION 20 568 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 569 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 570 #if 0 /* obsolete */ 571 #define IPV6CTL_MAPPED_ADDR 23 572 #endif 573 #define IPV6CTL_V6ONLY 24 574 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 575 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 576 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 577 578 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 579 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 580 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 581 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 582 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 583 584 /* New entries should be added here from current IPV6CTL_MAXID value. */ 585 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 586 #define IPV6CTL_MAXID 37 587 588 /* 589 * Redefinition of mbuf flags 590 */ 591 #define M_AUTHIPHDR M_PROTO2 592 #define M_DECRYPTED M_PROTO3 593 #define M_LOOP M_PROTO4 594 #define M_AUTHIPDGM M_PROTO5 595 596 #ifdef _KERNEL 597 struct cmsghdr; 598 599 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 600 int in6_localaddr __P((struct in6_addr *)); 601 int in6_addrscope __P((struct in6_addr *)); 602 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 603 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 604 extern void in6_if_up __P((struct ifnet *)); 605 struct sockaddr; 606 extern u_char ip6_protox[]; 607 608 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 609 struct sockaddr_in6 *sin6)); 610 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 611 struct sockaddr_in6 *sin6)); 612 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 613 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 614 615 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 616 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 617 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 618 619 extern int (*faithprefix_p)(struct in6_addr *); 620 #endif /* _KERNEL */ 621 622 #ifndef _SIZE_T_DECLARED 623 typedef __size_t size_t; 624 #define _SIZE_T_DECLARED 625 #endif 626 627 __BEGIN_DECLS 628 struct cmsghdr; 629 630 extern int inet6_option_space __P((int)); 631 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 632 extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 633 int, int)); 634 extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 635 extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 636 extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 637 638 extern size_t inet6_rthdr_space __P((int, int)); 639 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 640 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 641 unsigned int)); 642 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 643 #if 0 /* not implemented yet */ 644 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 645 #endif 646 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 647 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 648 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 649 650 extern int inet6_opt_init __P((void *, size_t)); 651 extern int inet6_opt_append __P((void *, size_t, int, uint8_t, 652 size_t, uint8_t, void **)); 653 extern int inet6_opt_finish __P((void *, size_t, int)); 654 extern int inet6_opt_set_val __P((void *, size_t, void *, int)); 655 656 extern int inet6_opt_next __P((void *, size_t, int, uint8_t *, 657 size_t *, void **)); 658 extern int inet6_opt_find __P((void *, size_t, int, uint8_t, 659 size_t *, void **)); 660 extern int inet6_opt_get_val __P((void *, size_t, void *, int)); 661 extern size_t inet6_rth_space __P((int, int)); 662 extern void *inet6_rth_init __P((void *, int, int, int)); 663 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 664 extern int inet6_rth_reverse __P((const void *, void *)); 665 extern int inet6_rth_segments __P((const void *)); 666 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 667 __END_DECLS 668 669 #endif /* __BSD_VISIBLE */ 670 671 #endif /* !_NETINET6_IN6_H_ */
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