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 1.12 2008/09/14 08:58:33 hasso 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 #ifndef _SOCKLEN_T_DECLARED 85 #define _SOCKLEN_T_DECLARED 86 typedef __socklen_t socklen_t; 87 #endif 88 89 /* 90 * Local port number conventions: 91 * 92 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 93 * unless a kernel is compiled with IPNOPRIVPORTS defined. 94 * 95 * When a user does a bind(2) or connect(2) with a port number of zero, 96 * a non-conflicting local port address is chosen. 97 * 98 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 99 * that is settable by sysctl(3); net.inet.ip.anonportmin and 100 * net.inet.ip.anonportmax respectively. 101 * 102 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 103 * default assignment range. 104 * 105 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 106 * 107 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 108 * and exists only for FreeBSD compatibility purposes. 109 * 110 * The value IP_PORTRANGE_LOW changes the range to the "low" are 111 * that is (by convention) restricted to privileged processes. 112 * This convention is based on "vouchsafe" principles only. 113 * It is only secure if you trust the remote host to restrict these ports. 114 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 115 */ 116 117 #define IPV6PORT_RESERVED 1024 118 #define IPV6PORT_ANONMIN 49152 119 #define IPV6PORT_ANONMAX 65535 120 #define IPV6PORT_RESERVEDMIN 600 121 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 122 123 /* 124 * IPv6 address 125 */ 126 struct in6_addr { 127 union { 128 uint8_t __u6_addr8[16]; 129 uint16_t __u6_addr16[8]; 130 uint32_t __u6_addr32[4]; 131 } __u6_addr; /* 128-bit IP6 address */ 132 }; 133 134 #define s6_addr __u6_addr.__u6_addr8 135 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ 136 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ 137 #ifdef _KERNEL /* XXX nonstandard */ 138 #define s6_addr8 __u6_addr.__u6_addr8 139 #define s6_addr16 __u6_addr.__u6_addr16 140 #define s6_addr32 __u6_addr.__u6_addr32 141 #endif 142 143 #define INET6_ADDRSTRLEN 46 144 145 /* 146 * Socket address for IPv6 147 */ 148 #ifndef _XOPEN_SOURCE 149 #define SIN6_LEN 150 #endif 151 struct sockaddr_in6 { 152 uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 153 uint8_t sin6_family; /* AF_INET6 (sa_family_t) */ 154 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 155 uint32_t sin6_flowinfo; /* IP6 flow information */ 156 struct in6_addr sin6_addr; /* IP6 address */ 157 uint32_t sin6_scope_id; /* scope zone index */ 158 }; 159 160 /* 161 * Local definition for masks 162 */ 163 #ifdef _KERNEL /* XXX nonstandard */ 164 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 165 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 167 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 168 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 169 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 171 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 172 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 173 #endif 174 175 #ifdef _KERNEL 176 extern const struct sockaddr_in6 sa6_any; 177 178 extern const struct in6_addr in6mask0; 179 extern const struct in6_addr in6mask32; 180 extern const struct in6_addr in6mask64; 181 extern const struct in6_addr in6mask96; 182 extern const struct in6_addr in6mask128; 183 #endif /* _KERNEL */ 184 185 /* 186 * Macros started with IPV6_ADDR is KAME local 187 */ 188 #if BYTE_ORDER == BIG_ENDIAN 189 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 190 #define _IPV6_ADDR_INT16_ULL 0xfe80 191 #define _IPV6_ADDR_INT16_USL 0xfec0 192 #else 193 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff 194 #define _IPV6_ADDR_INT16_ULL 0x80fe 195 #define _IPV6_ADDR_INT16_USL 0xc0fe 196 #endif 197 198 #ifdef _KERNEL /* XXX nonstandard */ 199 #if BYTE_ORDER == BIG_ENDIAN 200 #define IPV6_ADDR_INT32_ONE 1 201 #define IPV6_ADDR_INT32_TWO 2 202 #define IPV6_ADDR_INT32_MNL 0xff010000 203 #define IPV6_ADDR_INT32_MLL 0xff020000 204 #define IPV6_ADDR_INT32_SMP 0x0000ffff 205 #define IPV6_ADDR_INT16_MLL 0xff02 206 #elif BYTE_ORDER == LITTLE_ENDIAN 207 #define IPV6_ADDR_INT32_ONE 0x01000000 208 #define IPV6_ADDR_INT32_TWO 0x02000000 209 #define IPV6_ADDR_INT32_MNL 0x000001ff 210 #define IPV6_ADDR_INT32_MLL 0x000002ff 211 #define IPV6_ADDR_INT32_SMP 0xffff0000 212 #define IPV6_ADDR_INT16_MLL 0x02ff 213 #endif 214 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL 215 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL 216 #endif 217 218 /* 219 * Definition of some useful macros to handle IP6 addresses 220 */ 221 #define IN6ADDR_ANY_INIT \ 222 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 223 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 224 #define IN6ADDR_LOOPBACK_INIT \ 225 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 226 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 227 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 228 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 229 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 230 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 231 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 232 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 233 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 234 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 235 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 236 237 #ifdef _KERNEL 238 extern const struct in6_addr kin6addr_any; 239 extern const struct in6_addr kin6addr_loopback; 240 extern const struct in6_addr kin6addr_nodelocal_allnodes; 241 extern const struct in6_addr kin6addr_linklocal_allnodes; 242 extern const struct in6_addr kin6addr_linklocal_allrouters; 243 #else 244 extern const struct in6_addr in6addr_any; 245 extern const struct in6_addr in6addr_loopback; 246 extern const struct in6_addr in6addr_nodelocal_allnodes; 247 extern const struct in6_addr in6addr_linklocal_allnodes; 248 #endif 249 250 #define IN6_ARE_ADDR_EQUAL(a, b) \ 251 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 252 253 #ifdef _KERNEL /* non standard */ 254 /* see if two addresses are equal in a scope-conscious manner. */ 255 #define SA6_ARE_ADDR_EQUAL(a, b) \ 256 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 257 (a)->sin6_scope_id == (b)->sin6_scope_id) && \ 258 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 259 #endif 260 261 /* 262 * Unspecified 263 */ 264 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 265 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 266 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) 267 268 /* 269 * Loopback 270 */ 271 #define IN6_IS_ADDR_LOOPBACK(a) \ 272 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 273 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) 274 275 /* 276 * Mapped 277 */ 278 #define IN6_IS_ADDR_V4MAPPED(a) \ 279 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 280 (a)->_s6_addr32[2] == ntohl(0x0000ffff)) 281 282 /* 283 * IPv4 compatible. Deprecated by RFC4291. 284 */ 285 #define IN6_IS_ADDR_V4COMPAT(a) \ 286 ((a)->_s6_addr32[0] == 0 && \ 287 (a)->_s6_addr32[1] == 0 && \ 288 (a)->_s6_addr32[2] == 0 && \ 289 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) 290 291 /* 292 * KAME Scope Values 293 */ 294 295 #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 300 301 #ifdef _KERNEL /* XXX nonstandard */ 302 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 303 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 304 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 305 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 306 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 307 #endif 308 309 /* 310 * Unicast Scope 311 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 312 */ 313 #define IN6_IS_ADDR_LINKLOCAL(a) \ 314 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) 315 #define IN6_IS_ADDR_SITELOCAL(a) \ 316 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) 317 318 /* 319 * Multicast 320 */ 321 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 322 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 323 #ifdef _KERNEL /* XXX nonstandard */ 324 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) 325 #endif 326 327 /* 328 * Multicast Scope 329 */ 330 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 333 334 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 337 338 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 341 342 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 345 346 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 349 350 #ifdef _KERNEL /* nonstandard */ 351 /* 352 * KAME Scope 353 */ 354 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 355 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) 356 357 #define IFA6_IS_DEPRECATED(a) \ 358 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 359 (a)->ia6_lifetime.ia6t_preferred < time_second) 360 361 #define IFA6_IS_INVALID(a) \ 362 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 363 (a)->ia6_lifetime.ia6t_expire < time_second) 364 #endif 365 366 /* 367 * IP6 route structure 368 */ 369 #ifndef _XOPEN_SOURCE 370 struct route_in6 { 371 struct rtentry *ro_rt; 372 struct sockaddr_in6 ro_dst; 373 }; 374 #endif 375 376 /* 377 * Options for use with [gs]etsockopt at the IPV6 level. 378 * First word of comment is data type; bool is stored in int. 379 */ 380 /* no hdrincl */ 381 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 382 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 383 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 384 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 385 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 386 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 387 #endif 388 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 389 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 390 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 391 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 392 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 393 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 394 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 395 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 396 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 397 /* RFC2292 options */ 398 #ifdef _KERNEL 399 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 400 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 401 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 402 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 403 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 404 #define IPV6_2292RTHDR 24 /* bool; routing header */ 405 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 406 #endif 407 408 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 409 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 410 #ifndef _KERNEL 411 #define IPV6_BINDV6ONLY IPV6_V6ONLY 412 #endif 413 414 #if 1 /* IPSEC */ 415 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 416 #endif 417 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 418 419 #if 1 /* IPV6FIREWALL */ 420 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 421 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 422 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 423 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 424 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 425 #endif 426 427 /* 428 * new socket options introduced in RFC3542 429 */ 430 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 431 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 432 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 433 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 434 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 435 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 436 #ifdef _KERNEL 437 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 438 #endif 439 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 440 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 441 442 /* mtuinfo; get the current path MTU (sopt), 443 * 4 bytes int; MTU notification (cmsg) 444 */ 445 #define IPV6_PATHMTU 44 446 #if 0 /*obsoleted during 2292bis -> 3542*/ 447 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 448 (cmsg only/not in of RFC3542) */ 449 #endif 450 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 451 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 452 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 453 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 454 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 455 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 456 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ 457 458 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 459 460 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 461 462 #define IPV6_TCLASS 61 /* int; send traffic class value */ 463 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 464 465 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 466 * the source address. 467 */ 468 /* 469 * The following option is private; do not use it from user applications. 470 * It is deliberately defined to the same value as IP_MSFILTER. 471 */ 472 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 473 * set/get multicast source filter list. 474 */ 475 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 476 477 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 478 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 479 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 480 481 /* 482 * Defaults and limits for options 483 */ 484 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 485 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 486 487 /* 488 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 489 */ 490 struct ipv6_mreq { 491 struct in6_addr ipv6mr_multiaddr; 492 unsigned int ipv6mr_interface; 493 }; 494 495 /* 496 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 497 */ 498 struct in6_pktinfo { 499 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 500 unsigned int ipi6_ifindex; /* send/recv interface index */ 501 }; 502 503 /* 504 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. 505 */ 506 struct ip6_mtuinfo { 507 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 508 uint32_t ip6m_mtu; 509 }; 510 511 /* 512 * Argument for IPV6_PORTRANGE: 513 * - which range to search when port is unspecified at bind() or connect() 514 */ 515 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 516 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 517 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 518 519 #ifndef _XOPEN_SOURCE 520 /* 521 * Definitions for inet6 sysctl operations. 522 * 523 * Third level is protocol number. 524 * Fourth level is desired variable within that protocol. 525 */ 526 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 527 528 #define CTL_IPV6PROTO_NAMES { \ 529 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 530 { 0, 0 }, \ 531 { "tcp6", CTLTYPE_NODE }, \ 532 { 0, 0 }, \ 533 { 0, 0 }, \ 534 { 0, 0 }, \ 535 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 536 { 0, 0 }, \ 537 { 0, 0 }, \ 538 { "udp6", CTLTYPE_NODE }, \ 539 { 0, 0 }, \ 540 { 0, 0 }, \ 541 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 542 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 543 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 544 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 545 { 0, 0 }, \ 546 { "ip6", CTLTYPE_NODE }, \ 547 { 0, 0 }, \ 548 { 0, 0 }, \ 549 { 0, 0 }, \ 550 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 551 { 0, 0 }, \ 552 { "ipsec6", CTLTYPE_NODE }, \ 553 { 0, 0 }, \ 554 { 0, 0 }, \ 555 { 0, 0 }, \ 556 { 0, 0 }, \ 557 { 0, 0 }, \ 558 { 0, 0 }, \ 559 { "icmp6", CTLTYPE_NODE }, \ 560 { 0, 0 }, \ 561 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 562 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 563 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 564 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 565 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 566 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 567 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 568 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 569 { 0, 0 }, \ 570 { 0, 0 }, \ 571 { 0, 0 }, \ 572 { "pim6", CTLTYPE_NODE }, \ 573 } 574 575 /* 576 * Names for IP sysctl objects 577 */ 578 #define IPV6CTL_FORWARDING 1 /* act as router */ 579 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 580 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 581 #ifdef notyet 582 #define IPV6CTL_DEFMTU 4 /* default MTU */ 583 #endif 584 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 585 #define IPV6CTL_STATS 6 /* stats */ 586 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 587 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 588 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 589 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 590 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 591 #define IPV6CTL_ACCEPT_RTADV 12 592 #define IPV6CTL_KEEPFAITH 13 593 #define IPV6CTL_LOG_INTERVAL 14 594 #define IPV6CTL_HDRNESTLIMIT 15 595 #define IPV6CTL_DAD_COUNT 16 596 #define IPV6CTL_AUTO_FLOWLABEL 17 597 #define IPV6CTL_DEFMCASTHLIM 18 598 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 599 #define IPV6CTL_KAME_VERSION 20 600 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 601 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 602 #if 0 /* obsolete */ 603 #define IPV6CTL_MAPPED_ADDR 23 604 #endif 605 #define IPV6CTL_V6ONLY 24 606 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 607 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 608 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 609 610 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 611 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 612 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 613 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 614 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 615 616 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 617 618 /* New entries should be added here from current IPV6CTL_MAXID value. */ 619 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 620 #define IPV6CTL_MAXID 42 621 622 #endif /* !_XOPEN_SOURCE */ 623 624 /* 625 * Redefinition of mbuf flags 626 */ 627 #define M_AUTHIPHDR M_PROTO2 628 #define M_DECRYPTED M_PROTO3 629 #define M_LOOP M_PROTO4 630 #define M_AUTHIPDGM M_PROTO5 631 632 #ifdef _KERNEL 633 634 struct ifnet; 635 struct mbuf; 636 struct sockaddr; 637 struct sockaddr_in; 638 struct sockaddr_in6; 639 640 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); 641 int in6_localaddr (struct in6_addr *); 642 int in6_addrscope (struct in6_addr *); 643 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *); 644 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 645 void in6_if_up (struct ifnet *); 646 647 void in6_sin6_2_sin (struct sockaddr_in *sin, struct sockaddr_in6 *sin6); 648 void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, struct sockaddr_in6 *sin6); 649 void in6_sin6_2_sin_in_sock (struct sockaddr *nam); 650 void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam); 651 void addrsel_policy_init (void); 652 653 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 654 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 655 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 656 657 extern int (*faithprefix_p)(struct in6_addr *); 658 #endif /* _KERNEL */ 659 660 #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ 661 662 __BEGIN_DECLS 663 struct cmsghdr; 664 665 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 666 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); 667 int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 668 int inet6_option_init (void *, struct cmsghdr **, int); 669 int inet6_option_next (const struct cmsghdr *, uint8_t **); 670 int inet6_option_space (int); 671 672 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); 673 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); 674 int inet6_opt_finish (void *, socklen_t, int); 675 int inet6_opt_get_val (void *, int, void *, socklen_t); 676 int inet6_opt_init (void *, socklen_t); 677 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); 678 int inet6_opt_set_val (void *, int, void *, socklen_t); 679 680 int inet6_rth_add (void *, const struct in6_addr *); 681 struct in6_addr *inet6_rth_getaddr (const void *, int); 682 void *inet6_rth_init (void *, socklen_t, int, int); 683 int inet6_rth_reverse (const void *, void *); 684 int inet6_rth_segments (const void *); 685 socklen_t inet6_rth_space (int, int); 686 687 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 688 unsigned int); 689 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 690 int inet6_rthdr_getflags (const struct cmsghdr *, int); 691 struct cmsghdr *inet6_rthdr_init (void *, int); 692 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 693 #if 0 /* not implemented yet */ 694 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 695 #endif 696 int inet6_rthdr_segments (const struct cmsghdr *); 697 size_t inet6_rthdr_space (int, int); 698 __END_DECLS 699 700 #endif /* !_NETINET6_IN6_H_ */ 701