1 /* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */ 2 /* $DragonFly: src/sys/netinet6/in6.h,v 1.4 2006/05/20 02:42:12 dillon Exp $ */ 3 /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */ 4 5 /* 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1982, 1986, 1990, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)in.h 8.3 (Berkeley) 1/3/94 67 */ 68 69 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 70 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 71 #endif 72 73 #ifndef _NETINET6_IN6_H_ 74 #define _NETINET6_IN6_H_ 75 76 #ifndef _SYS_TYPES_H_ 77 #include <sys/types.h> 78 #endif 79 80 /* 81 * Identification of the network protocol stack 82 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 83 * has the table of implementation/integration differences. 84 */ 85 #define __KAME__ 86 #define __KAME_VERSION "20010528/FreeBSD" 87 88 /* 89 * Local port number conventions: 90 * 91 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 92 * unless a kernel is compiled with IPNOPRIVPORTS defined. 93 * 94 * When a user does a bind(2) or connect(2) with a port number of zero, 95 * a non-conflicting local port address is chosen. 96 * 97 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 98 * that is settable by sysctl(3); net.inet.ip.anonportmin and 99 * net.inet.ip.anonportmax respectively. 100 * 101 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 102 * default assignment range. 103 * 104 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 105 * 106 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 107 * and exists only for FreeBSD compatibility purposes. 108 * 109 * The value IP_PORTRANGE_LOW changes the range to the "low" are 110 * that is (by convention) restricted to privileged processes. 111 * This convention is based on "vouchsafe" principles only. 112 * It is only secure if you trust the remote host to restrict these ports. 113 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 114 */ 115 116 #define IPV6PORT_RESERVED 1024 117 #define IPV6PORT_ANONMIN 49152 118 #define IPV6PORT_ANONMAX 65535 119 #define IPV6PORT_RESERVEDMIN 600 120 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 121 122 /* 123 * IPv6 address 124 */ 125 struct in6_addr { 126 union { 127 u_int8_t __u6_addr8[16]; 128 u_int16_t __u6_addr16[8]; 129 u_int32_t __u6_addr32[4]; 130 } __u6_addr; /* 128-bit IP6 address */ 131 }; 132 133 #define s6_addr __u6_addr.__u6_addr8 134 #ifdef _KERNEL /* XXX nonstandard */ 135 #define s6_addr8 __u6_addr.__u6_addr8 136 #define s6_addr16 __u6_addr.__u6_addr16 137 #define s6_addr32 __u6_addr.__u6_addr32 138 #endif 139 140 #define INET6_ADDRSTRLEN 46 141 142 /* 143 * Socket address for IPv6 144 */ 145 #ifndef _XOPEN_SOURCE 146 #define SIN6_LEN 147 #endif 148 struct sockaddr_in6 { 149 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 150 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */ 151 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 152 u_int32_t sin6_flowinfo; /* IP6 flow information */ 153 struct in6_addr sin6_addr; /* IP6 address */ 154 u_int32_t sin6_scope_id; /* scope zone index */ 155 }; 156 157 /* 158 * Local definition for masks 159 */ 160 #ifdef _KERNEL /* XXX nonstandard */ 161 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 162 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 163 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 164 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 165 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 166 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 167 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 168 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 169 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 170 #endif 171 172 #ifdef _KERNEL 173 extern const struct sockaddr_in6 sa6_any; 174 175 extern const struct in6_addr in6mask0; 176 extern const struct in6_addr in6mask32; 177 extern const struct in6_addr in6mask64; 178 extern const struct in6_addr in6mask96; 179 extern const struct in6_addr in6mask128; 180 #endif /* _KERNEL */ 181 182 /* 183 * Macros started with IPV6_ADDR is KAME local 184 */ 185 #ifdef _KERNEL /* XXX nonstandard */ 186 #if BYTE_ORDER == BIG_ENDIAN 187 #define IPV6_ADDR_INT32_ONE 1 188 #define IPV6_ADDR_INT32_TWO 2 189 #define IPV6_ADDR_INT32_MNL 0xff010000 190 #define IPV6_ADDR_INT32_MLL 0xff020000 191 #define IPV6_ADDR_INT32_SMP 0x0000ffff 192 #define IPV6_ADDR_INT16_ULL 0xfe80 193 #define IPV6_ADDR_INT16_USL 0xfec0 194 #define IPV6_ADDR_INT16_MLL 0xff02 195 #elif BYTE_ORDER == LITTLE_ENDIAN 196 #define IPV6_ADDR_INT32_ONE 0x01000000 197 #define IPV6_ADDR_INT32_TWO 0x02000000 198 #define IPV6_ADDR_INT32_MNL 0x000001ff 199 #define IPV6_ADDR_INT32_MLL 0x000002ff 200 #define IPV6_ADDR_INT32_SMP 0xffff0000 201 #define IPV6_ADDR_INT16_ULL 0x80fe 202 #define IPV6_ADDR_INT16_USL 0xc0fe 203 #define IPV6_ADDR_INT16_MLL 0x02ff 204 #endif 205 #endif 206 207 /* 208 * Definition of some useful macros to handle IP6 addresses 209 */ 210 #define IN6ADDR_ANY_INIT \ 211 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 213 #define IN6ADDR_LOOPBACK_INIT \ 214 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 215 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 216 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 217 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 219 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 220 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 222 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 223 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 225 226 extern const struct in6_addr in6addr_any; 227 extern const struct in6_addr in6addr_loopback; 228 extern const struct in6_addr in6addr_nodelocal_allnodes; 229 extern const struct in6_addr in6addr_linklocal_allnodes; 230 extern const struct in6_addr in6addr_linklocal_allrouters; 231 232 /* 233 * Equality 234 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 235 * does not supply memcmp(). For userland memcmp() is preferred as it is 236 * in ANSI standard. 237 */ 238 #ifdef _KERNEL 239 #define IN6_ARE_ADDR_EQUAL(a, b) \ 240 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 241 #else 242 #define IN6_ARE_ADDR_EQUAL(a, b) \ 243 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 244 #endif 245 246 #ifdef _KERNEL /* non standard */ 247 /* see if two addresses are equal in a scope-conscious manner. */ 248 #define SA6_ARE_ADDR_EQUAL(a, b) \ 249 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 250 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 251 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 252 #endif 253 254 /* 255 * Unspecified 256 */ 257 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 258 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 259 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 260 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 261 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 262 263 /* 264 * Loopback 265 */ 266 #define IN6_IS_ADDR_LOOPBACK(a) \ 267 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 268 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 269 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 270 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 271 272 /* 273 * IPv4 compatible 274 */ 275 #define IN6_IS_ADDR_V4COMPAT(a) \ 276 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 277 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 278 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 279 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 280 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 281 282 /* 283 * Mapped 284 */ 285 #define IN6_IS_ADDR_V4MAPPED(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]) == ntohl(0x0000ffff))) 289 290 /* 291 * KAME Scope Values 292 */ 293 294 #ifdef _KERNEL /* XXX nonstandard */ 295 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 296 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 297 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 298 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 299 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 300 #else 301 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 302 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 303 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 304 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 305 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 306 #endif 307 308 /* 309 * Unicast Scope 310 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 311 */ 312 #define IN6_IS_ADDR_LINKLOCAL(a) \ 313 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 314 #define IN6_IS_ADDR_SITELOCAL(a) \ 315 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 316 317 /* 318 * Multicast 319 */ 320 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 321 322 #ifdef _KERNEL /* XXX nonstandard */ 323 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 324 #else 325 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 326 #endif 327 328 /* 329 * Multicast Scope 330 */ 331 #ifdef _KERNEL /* refers nonstandard items */ 332 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 333 (IN6_IS_ADDR_MULTICAST(a) && \ 334 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 335 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 336 (IN6_IS_ADDR_MULTICAST(a) && \ 337 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 338 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 341 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 342 (IN6_IS_ADDR_MULTICAST(a) && \ 343 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 344 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 347 #else 348 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 349 (IN6_IS_ADDR_MULTICAST(a) && \ 350 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 351 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 352 (IN6_IS_ADDR_MULTICAST(a) && \ 353 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 354 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 355 (IN6_IS_ADDR_MULTICAST(a) && \ 356 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 357 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 358 (IN6_IS_ADDR_MULTICAST(a) && \ 359 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 360 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 361 (IN6_IS_ADDR_MULTICAST(a) && \ 362 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 363 #endif 364 365 #ifdef _KERNEL /* nonstandard */ 366 /* 367 * KAME Scope 368 */ 369 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 370 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 371 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 372 373 #define IFA6_IS_DEPRECATED(a) \ 374 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 375 (a)->ia6_lifetime.ia6t_preferred < time_second) 376 #define IFA6_IS_INVALID(a) \ 377 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 378 (a)->ia6_lifetime.ia6t_expire < time_second) 379 #endif /* _KERNEL */ 380 381 /* 382 * IP6 route structure 383 */ 384 #ifndef _XOPEN_SOURCE 385 struct route_in6 { 386 struct rtentry *ro_rt; 387 struct sockaddr_in6 ro_dst; 388 }; 389 #endif 390 391 /* 392 * Options for use with [gs]etsockopt at the IPV6 level. 393 * First word of comment is data type; bool is stored in int. 394 */ 395 /* no hdrincl */ 396 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 397 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 398 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 399 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 400 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 401 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 402 #endif 403 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 404 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 405 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 406 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 407 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 408 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 409 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 410 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 411 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 412 /* RFC2292 options */ 413 #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 414 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 415 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 416 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 417 #define IPV6_DSTOPTS 23 /* bool; destination option */ 418 #define IPV6_RTHDR 24 /* bool; routing header */ 419 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 420 421 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 422 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 423 #ifndef _KERNEL 424 #define IPV6_BINDV6ONLY IPV6_V6ONLY 425 #endif 426 427 #if 1 /* IPSEC */ 428 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 429 #endif 430 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 431 432 #if 1 /* IPV6FIREWALL */ 433 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 434 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 435 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 436 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 437 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 438 #endif 439 440 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 441 442 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 443 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 444 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 445 446 /* 447 * Defaults and limits for options 448 */ 449 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 450 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 451 452 /* 453 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 454 */ 455 struct ipv6_mreq { 456 struct in6_addr ipv6mr_multiaddr; 457 unsigned int ipv6mr_interface; 458 }; 459 460 /* 461 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 462 */ 463 struct in6_pktinfo { 464 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 465 unsigned int ipi6_ifindex; /* send/recv interface index */ 466 }; 467 468 /* 469 * Argument for IPV6_PORTRANGE: 470 * - which range to search when port is unspecified at bind() or connect() 471 */ 472 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 473 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 474 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 475 476 #ifndef _XOPEN_SOURCE 477 /* 478 * Definitions for inet6 sysctl operations. 479 * 480 * Third level is protocol number. 481 * Fourth level is desired variable within that protocol. 482 */ 483 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 484 485 #define CTL_IPV6PROTO_NAMES { \ 486 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 487 { 0, 0 }, \ 488 { "tcp6", CTLTYPE_NODE }, \ 489 { 0, 0 }, \ 490 { 0, 0 }, \ 491 { 0, 0 }, \ 492 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 493 { 0, 0 }, \ 494 { 0, 0 }, \ 495 { "udp6", CTLTYPE_NODE }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 499 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 500 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 501 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 502 { 0, 0 }, \ 503 { "ip6", CTLTYPE_NODE }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 508 { 0, 0 }, \ 509 { "ipsec6", CTLTYPE_NODE }, \ 510 { 0, 0 }, \ 511 { 0, 0 }, \ 512 { 0, 0 }, \ 513 { 0, 0 }, \ 514 { 0, 0 }, \ 515 { 0, 0 }, \ 516 { "icmp6", CTLTYPE_NODE }, \ 517 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 522 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 523 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 524 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 525 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 526 { 0, 0 }, \ 527 { 0, 0 }, \ 528 { 0, 0 }, \ 529 { "pim6", CTLTYPE_NODE }, \ 530 } 531 532 /* 533 * Names for IP sysctl objects 534 */ 535 #define IPV6CTL_FORWARDING 1 /* act as router */ 536 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 537 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 538 #ifdef notyet 539 #define IPV6CTL_DEFMTU 4 /* default MTU */ 540 #endif 541 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 542 #define IPV6CTL_STATS 6 /* stats */ 543 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 544 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 545 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 546 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 547 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 548 #define IPV6CTL_ACCEPT_RTADV 12 549 #define IPV6CTL_KEEPFAITH 13 550 #define IPV6CTL_LOG_INTERVAL 14 551 #define IPV6CTL_HDRNESTLIMIT 15 552 #define IPV6CTL_DAD_COUNT 16 553 #define IPV6CTL_AUTO_FLOWLABEL 17 554 #define IPV6CTL_DEFMCASTHLIM 18 555 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 556 #define IPV6CTL_KAME_VERSION 20 557 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 558 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 559 #if 0 /* obsolete */ 560 #define IPV6CTL_MAPPED_ADDR 23 561 #endif 562 #define IPV6CTL_V6ONLY 24 563 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 564 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 565 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 566 567 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 568 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 569 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 570 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 571 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 572 573 /* New entries should be added here from current IPV6CTL_MAXID value. */ 574 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 575 #define IPV6CTL_MAXID 37 576 577 #endif /* !_XOPEN_SOURCE */ 578 579 /* 580 * Redefinition of mbuf flags 581 */ 582 #define M_AUTHIPHDR M_PROTO2 583 #define M_DECRYPTED M_PROTO3 584 #define M_LOOP M_PROTO4 585 #define M_AUTHIPDGM M_PROTO5 586 587 #ifdef _KERNEL 588 589 struct mbuf; 590 struct ifnet; 591 struct cmsghdr; 592 struct sockaddr; 593 struct sockaddr_in; 594 struct sockaddr_in6; 595 596 int in6_cksum (struct mbuf *, u_int8_t, u_int32_t, u_int32_t); 597 int in6_localaddr (struct in6_addr *); 598 int in6_addrscope (struct in6_addr *); 599 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *); 600 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 601 extern void in6_if_up (struct ifnet *); 602 struct sockaddr; 603 604 void in6_sin6_2_sin (struct sockaddr_in *sin, 605 struct sockaddr_in6 *sin6); 606 void in6_sin_2_v4mapsin6 (struct sockaddr_in *sin, 607 struct sockaddr_in6 *sin6); 608 void in6_sin6_2_sin_in_sock (struct sockaddr *nam); 609 void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam); 610 611 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 612 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 613 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 614 615 extern int (*faithprefix_p)(struct in6_addr *); 616 #endif /* _KERNEL */ 617 618 __BEGIN_DECLS 619 struct cmsghdr; 620 621 extern int inet6_option_space (int); 622 extern int inet6_option_init (void *, struct cmsghdr **, int); 623 extern int inet6_option_append (struct cmsghdr *, const u_int8_t *, 624 int, int); 625 extern u_int8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 626 extern int inet6_option_next (const struct cmsghdr *, u_int8_t **); 627 extern int inet6_option_find (const struct cmsghdr *, u_int8_t **, int); 628 629 extern size_t inet6_rthdr_space (int, int); 630 extern struct cmsghdr *inet6_rthdr_init (void *, int); 631 extern int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 632 unsigned int); 633 extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 634 #if 0 /* not implemented yet */ 635 extern int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 636 #endif 637 extern int inet6_rthdr_segments (const struct cmsghdr *); 638 extern struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 639 extern int inet6_rthdr_getflags (const struct cmsghdr *, int); 640 641 extern int inet6_opt_init (void *, size_t); 642 extern int inet6_opt_append (void *, size_t, int, u_int8_t, 643 size_t, u_int8_t, void **); 644 extern int inet6_opt_finish (void *, size_t, int); 645 extern int inet6_opt_set_val (void *, size_t, void *, int); 646 647 extern int inet6_opt_next (void *, size_t, int, u_int8_t *, 648 size_t *, void **); 649 extern int inet6_opt_find (void *, size_t, int, u_int8_t, 650 size_t *, void **); 651 extern int inet6_opt_get_val (void *, size_t, void *, int); 652 extern size_t inet6_rth_space (int, int); 653 extern void *inet6_rth_init (void *, int, int, int); 654 extern int inet6_rth_add (void *, const struct in6_addr *); 655 extern int inet6_rth_reverse (const void *, void *); 656 extern int inet6_rth_segments (const void *); 657 extern struct in6_addr *inet6_rth_getaddr (const void *, int); 658 __END_DECLS 659 660 #endif /* !_NETINET6_IN6_H_ */ 661