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 1.2 2003/06/17 04:28:52 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 /* 77 * Identification of the network protocol stack 78 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 79 * has the table of implementation/integration differences. 80 */ 81 #define __KAME__ 82 #define __KAME_VERSION "20010528/FreeBSD" 83 84 /* 85 * Local port number conventions: 86 * 87 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 88 * unless a kernel is compiled with IPNOPRIVPORTS defined. 89 * 90 * When a user does a bind(2) or connect(2) with a port number of zero, 91 * a non-conflicting local port address is chosen. 92 * 93 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 94 * that is settable by sysctl(3); net.inet.ip.anonportmin and 95 * net.inet.ip.anonportmax respectively. 96 * 97 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 98 * default assignment range. 99 * 100 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 101 * 102 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 103 * and exists only for FreeBSD compatibility purposes. 104 * 105 * The value IP_PORTRANGE_LOW changes the range to the "low" are 106 * that is (by convention) restricted to privileged processes. 107 * This convention is based on "vouchsafe" principles only. 108 * It is only secure if you trust the remote host to restrict these ports. 109 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 110 */ 111 112 #define IPV6PORT_RESERVED 1024 113 #define IPV6PORT_ANONMIN 49152 114 #define IPV6PORT_ANONMAX 65535 115 #define IPV6PORT_RESERVEDMIN 600 116 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 117 118 /* 119 * IPv6 address 120 */ 121 struct in6_addr { 122 union { 123 u_int8_t __u6_addr8[16]; 124 u_int16_t __u6_addr16[8]; 125 u_int32_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 * Socket address for IPv6 140 */ 141 #ifndef _XOPEN_SOURCE 142 #define SIN6_LEN 143 #endif 144 struct sockaddr_in6 { 145 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 146 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */ 147 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 148 u_int32_t sin6_flowinfo; /* IP6 flow information */ 149 struct in6_addr sin6_addr; /* IP6 address */ 150 u_int32_t sin6_scope_id; /* scope zone index */ 151 }; 152 153 /* 154 * Local definition for masks 155 */ 156 #ifdef _KERNEL /* XXX nonstandard */ 157 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 158 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 159 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 160 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 161 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 162 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 163 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 164 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 165 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 166 #endif 167 168 #ifdef _KERNEL 169 extern const struct sockaddr_in6 sa6_any; 170 171 extern const struct in6_addr in6mask0; 172 extern const struct in6_addr in6mask32; 173 extern const struct in6_addr in6mask64; 174 extern const struct in6_addr in6mask96; 175 extern const struct in6_addr in6mask128; 176 #endif /* _KERNEL */ 177 178 /* 179 * Macros started with IPV6_ADDR is KAME local 180 */ 181 #ifdef _KERNEL /* XXX nonstandard */ 182 #if BYTE_ORDER == BIG_ENDIAN 183 #define IPV6_ADDR_INT32_ONE 1 184 #define IPV6_ADDR_INT32_TWO 2 185 #define IPV6_ADDR_INT32_MNL 0xff010000 186 #define IPV6_ADDR_INT32_MLL 0xff020000 187 #define IPV6_ADDR_INT32_SMP 0x0000ffff 188 #define IPV6_ADDR_INT16_ULL 0xfe80 189 #define IPV6_ADDR_INT16_USL 0xfec0 190 #define IPV6_ADDR_INT16_MLL 0xff02 191 #elif BYTE_ORDER == LITTLE_ENDIAN 192 #define IPV6_ADDR_INT32_ONE 0x01000000 193 #define IPV6_ADDR_INT32_TWO 0x02000000 194 #define IPV6_ADDR_INT32_MNL 0x000001ff 195 #define IPV6_ADDR_INT32_MLL 0x000002ff 196 #define IPV6_ADDR_INT32_SMP 0xffff0000 197 #define IPV6_ADDR_INT16_ULL 0x80fe 198 #define IPV6_ADDR_INT16_USL 0xc0fe 199 #define IPV6_ADDR_INT16_MLL 0x02ff 200 #endif 201 #endif 202 203 /* 204 * Definition of some useful macros to handle IP6 addresses 205 */ 206 #define IN6ADDR_ANY_INIT \ 207 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 209 #define IN6ADDR_LOOPBACK_INIT \ 210 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 212 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 213 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 215 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 216 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 218 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 219 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 220 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 221 222 extern const struct in6_addr in6addr_any; 223 extern const struct in6_addr in6addr_loopback; 224 extern const struct in6_addr in6addr_nodelocal_allnodes; 225 extern const struct in6_addr in6addr_linklocal_allnodes; 226 extern const struct in6_addr in6addr_linklocal_allrouters; 227 228 /* 229 * Equality 230 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 231 * does not supply memcmp(). For userland memcmp() is preferred as it is 232 * in ANSI standard. 233 */ 234 #ifdef _KERNEL 235 #define IN6_ARE_ADDR_EQUAL(a, b) \ 236 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 237 #else 238 #define IN6_ARE_ADDR_EQUAL(a, b) \ 239 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 240 #endif 241 242 #ifdef _KERNEL /* non standard */ 243 /* see if two addresses are equal in a scope-conscious manner. */ 244 #define SA6_ARE_ADDR_EQUAL(a, b) \ 245 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 246 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 247 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 248 #endif 249 250 /* 251 * Unspecified 252 */ 253 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 254 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 255 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 256 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 257 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 258 259 /* 260 * Loopback 261 */ 262 #define IN6_IS_ADDR_LOOPBACK(a) \ 263 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 264 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 265 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 266 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 267 268 /* 269 * IPv4 compatible 270 */ 271 #define IN6_IS_ADDR_V4COMPAT(a) \ 272 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 273 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 274 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 275 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 276 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 277 278 /* 279 * Mapped 280 */ 281 #define IN6_IS_ADDR_V4MAPPED(a) \ 282 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 283 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 284 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 285 286 /* 287 * KAME Scope Values 288 */ 289 290 #ifdef _KERNEL /* XXX nonstandard */ 291 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 292 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 293 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 294 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 295 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 296 #else 297 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 298 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 299 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 300 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 301 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 302 #endif 303 304 /* 305 * Unicast Scope 306 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 307 */ 308 #define IN6_IS_ADDR_LINKLOCAL(a) \ 309 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 310 #define IN6_IS_ADDR_SITELOCAL(a) \ 311 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 312 313 /* 314 * Multicast 315 */ 316 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 317 318 #ifdef _KERNEL /* XXX nonstandard */ 319 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 320 #else 321 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 322 #endif 323 324 /* 325 * Multicast Scope 326 */ 327 #ifdef _KERNEL /* refers nonstandard items */ 328 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 329 (IN6_IS_ADDR_MULTICAST(a) && \ 330 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 331 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 332 (IN6_IS_ADDR_MULTICAST(a) && \ 333 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 334 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 337 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 340 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 343 #else 344 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 347 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 348 (IN6_IS_ADDR_MULTICAST(a) && \ 349 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 350 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 351 (IN6_IS_ADDR_MULTICAST(a) && \ 352 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 353 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 354 (IN6_IS_ADDR_MULTICAST(a) && \ 355 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 356 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 357 (IN6_IS_ADDR_MULTICAST(a) && \ 358 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 359 #endif 360 361 #ifdef _KERNEL /* nonstandard */ 362 /* 363 * KAME Scope 364 */ 365 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 366 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 367 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 368 369 #define IFA6_IS_DEPRECATED(a) \ 370 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 371 (a)->ia6_lifetime.ia6t_preferred < time_second) 372 #define IFA6_IS_INVALID(a) \ 373 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 374 (a)->ia6_lifetime.ia6t_expire < time_second) 375 #endif /* _KERNEL */ 376 377 /* 378 * IP6 route structure 379 */ 380 #ifndef _XOPEN_SOURCE 381 struct route_in6 { 382 struct rtentry *ro_rt; 383 struct sockaddr_in6 ro_dst; 384 }; 385 #endif 386 387 /* 388 * Options for use with [gs]etsockopt at the IPV6 level. 389 * First word of comment is data type; bool is stored in int. 390 */ 391 /* no hdrincl */ 392 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 393 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 394 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 395 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 396 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 397 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 398 #endif 399 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 400 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 401 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 402 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 403 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 404 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 405 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 406 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 407 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 408 /* RFC2292 options */ 409 #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 410 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 411 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 412 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 413 #define IPV6_DSTOPTS 23 /* bool; destination option */ 414 #define IPV6_RTHDR 24 /* bool; routing header */ 415 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 416 417 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 418 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 419 #ifndef _KERNEL 420 #define IPV6_BINDV6ONLY IPV6_V6ONLY 421 #endif 422 423 #if 1 /* IPSEC */ 424 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 425 #endif 426 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 427 428 #if 1 /* IPV6FIREWALL */ 429 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 430 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 431 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 432 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 433 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 434 #endif 435 436 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 437 438 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 439 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 440 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 441 442 /* 443 * Defaults and limits for options 444 */ 445 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 446 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 447 448 /* 449 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 450 */ 451 struct ipv6_mreq { 452 struct in6_addr ipv6mr_multiaddr; 453 unsigned int ipv6mr_interface; 454 }; 455 456 /* 457 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 458 */ 459 struct in6_pktinfo { 460 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 461 unsigned int ipi6_ifindex; /* send/recv interface index */ 462 }; 463 464 /* 465 * Argument for IPV6_PORTRANGE: 466 * - which range to search when port is unspecified at bind() or connect() 467 */ 468 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 469 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 470 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 471 472 #ifndef _XOPEN_SOURCE 473 /* 474 * Definitions for inet6 sysctl operations. 475 * 476 * Third level is protocol number. 477 * Fourth level is desired variable within that protocol. 478 */ 479 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 480 481 #define CTL_IPV6PROTO_NAMES { \ 482 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 483 { 0, 0 }, \ 484 { "tcp6", CTLTYPE_NODE }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 489 { 0, 0 }, \ 490 { 0, 0 }, \ 491 { "udp6", CTLTYPE_NODE }, \ 492 { 0, 0 }, \ 493 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 498 { 0, 0 }, \ 499 { "ip6", 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 { "ipsec6", CTLTYPE_NODE }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, \ 508 { 0, 0 }, \ 509 { 0, 0 }, \ 510 { 0, 0 }, \ 511 { 0, 0 }, \ 512 { "icmp6", CTLTYPE_NODE }, \ 513 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 522 { 0, 0 }, \ 523 { 0, 0 }, \ 524 { 0, 0 }, \ 525 { "pim6", CTLTYPE_NODE }, \ 526 } 527 528 /* 529 * Names for IP sysctl objects 530 */ 531 #define IPV6CTL_FORWARDING 1 /* act as router */ 532 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 533 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 534 #ifdef notyet 535 #define IPV6CTL_DEFMTU 4 /* default MTU */ 536 #endif 537 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 538 #define IPV6CTL_STATS 6 /* stats */ 539 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 540 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 541 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 542 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 543 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 544 #define IPV6CTL_ACCEPT_RTADV 12 545 #define IPV6CTL_KEEPFAITH 13 546 #define IPV6CTL_LOG_INTERVAL 14 547 #define IPV6CTL_HDRNESTLIMIT 15 548 #define IPV6CTL_DAD_COUNT 16 549 #define IPV6CTL_AUTO_FLOWLABEL 17 550 #define IPV6CTL_DEFMCASTHLIM 18 551 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 552 #define IPV6CTL_KAME_VERSION 20 553 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 554 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 555 #if 0 /* obsolete */ 556 #define IPV6CTL_MAPPED_ADDR 23 557 #endif 558 #define IPV6CTL_V6ONLY 24 559 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 560 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 561 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 562 563 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 564 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 565 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 566 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 567 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 568 569 /* New entries should be added here from current IPV6CTL_MAXID value. */ 570 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 571 #define IPV6CTL_MAXID 37 572 573 #endif /* !_XOPEN_SOURCE */ 574 575 /* 576 * Redefinition of mbuf flags 577 */ 578 #define M_AUTHIPHDR M_PROTO2 579 #define M_DECRYPTED M_PROTO3 580 #define M_LOOP M_PROTO4 581 #define M_AUTHIPDGM M_PROTO5 582 583 #ifdef _KERNEL 584 struct cmsghdr; 585 586 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 587 int in6_localaddr __P((struct in6_addr *)); 588 int in6_addrscope __P((struct in6_addr *)); 589 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 590 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 591 extern void in6_if_up __P((struct ifnet *)); 592 struct sockaddr; 593 594 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 595 struct sockaddr_in6 *sin6)); 596 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 597 struct sockaddr_in6 *sin6)); 598 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 599 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 600 601 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 602 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 603 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 604 605 extern int (*faithprefix_p)(struct in6_addr *); 606 #endif /* _KERNEL */ 607 608 __BEGIN_DECLS 609 struct cmsghdr; 610 611 extern int inet6_option_space __P((int)); 612 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 613 extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 614 int, int)); 615 extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 616 extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 617 extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, int)); 618 619 extern size_t inet6_rthdr_space __P((int, int)); 620 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 621 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 622 unsigned int)); 623 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 624 #if 0 /* not implemented yet */ 625 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 626 #endif 627 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 628 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 629 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 630 631 extern int inet6_opt_init __P((void *, size_t)); 632 extern int inet6_opt_append __P((void *, size_t, int, u_int8_t, 633 size_t, u_int8_t, void **)); 634 extern int inet6_opt_finish __P((void *, size_t, int)); 635 extern int inet6_opt_set_val __P((void *, size_t, void *, int)); 636 637 extern int inet6_opt_next __P((void *, size_t, int, u_int8_t *, 638 size_t *, void **)); 639 extern int inet6_opt_find __P((void *, size_t, int, u_int8_t, 640 size_t *, void **)); 641 extern int inet6_opt_get_val __P((void *, size_t, void *, int)); 642 extern size_t inet6_rth_space __P((int, int)); 643 extern void *inet6_rth_init __P((void *, int, int, int)); 644 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 645 extern int inet6_rth_reverse __P((const void *, void *)); 646 extern int inet6_rth_segments __P((const void *)); 647 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 648 __END_DECLS 649 650 #endif /* !_NETINET6_IN6_H_ */ 651