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 #ifndef _STRUCT_IN6_ADDR_DECLARED 127 struct in6_addr { 128 union { 129 uint8_t __u6_addr8[16]; 130 uint16_t __u6_addr16[8]; 131 uint32_t __u6_addr32[4]; 132 } __u6_addr; /* 128-bit IP6 address */ 133 }; 134 #define _STRUCT_IN6_ADDR_DECLARED 135 #endif 136 137 #define s6_addr __u6_addr.__u6_addr8 138 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ 139 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ 140 #if __BSD_VISIBLE /* XXX nonstandard */ 141 #define s6_addr8 __u6_addr.__u6_addr8 142 #define s6_addr16 __u6_addr.__u6_addr16 143 #define s6_addr32 __u6_addr.__u6_addr32 144 #endif 145 146 #define INET6_ADDRSTRLEN 46 147 148 /* 149 * Socket address for IPv6 150 */ 151 #ifndef _XOPEN_SOURCE 152 #define SIN6_LEN 153 #endif 154 struct sockaddr_in6 { 155 uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 156 uint8_t sin6_family; /* AF_INET6 (sa_family_t) */ 157 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 158 uint32_t sin6_flowinfo; /* IP6 flow information */ 159 struct in6_addr sin6_addr; /* IP6 address */ 160 uint32_t sin6_scope_id; /* scope zone index */ 161 }; 162 163 /* 164 * Local definition for masks 165 */ 166 #ifdef _KERNEL /* XXX nonstandard */ 167 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 168 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 169 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 170 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 171 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 172 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 173 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 174 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 175 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 176 #endif 177 178 #ifdef _KERNEL 179 extern const struct sockaddr_in6 sa6_any; 180 181 extern const struct in6_addr in6mask0; 182 extern const struct in6_addr in6mask32; 183 extern const struct in6_addr in6mask64; 184 extern const struct in6_addr in6mask96; 185 extern const struct in6_addr in6mask128; 186 #endif /* _KERNEL */ 187 188 /* 189 * Macros started with IPV6_ADDR is KAME local 190 */ 191 #if BYTE_ORDER == BIG_ENDIAN 192 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 193 #define _IPV6_ADDR_INT16_ULL 0xfe80 194 #define _IPV6_ADDR_INT16_USL 0xfec0 195 #else 196 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff 197 #define _IPV6_ADDR_INT16_ULL 0x80fe 198 #define _IPV6_ADDR_INT16_USL 0xc0fe 199 #endif 200 201 #ifdef _KERNEL /* XXX nonstandard */ 202 #if BYTE_ORDER == BIG_ENDIAN 203 #define IPV6_ADDR_INT32_ONE 1 204 #define IPV6_ADDR_INT32_TWO 2 205 #define IPV6_ADDR_INT32_MNL 0xff010000 206 #define IPV6_ADDR_INT32_MLL 0xff020000 207 #define IPV6_ADDR_INT32_SMP 0x0000ffff 208 #define IPV6_ADDR_INT16_MLL 0xff02 209 #elif BYTE_ORDER == LITTLE_ENDIAN 210 #define IPV6_ADDR_INT32_ONE 0x01000000 211 #define IPV6_ADDR_INT32_TWO 0x02000000 212 #define IPV6_ADDR_INT32_MNL 0x000001ff 213 #define IPV6_ADDR_INT32_MLL 0x000002ff 214 #define IPV6_ADDR_INT32_SMP 0xffff0000 215 #define IPV6_ADDR_INT16_MLL 0x02ff 216 #endif 217 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL 218 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL 219 #endif 220 221 /* 222 * Definition of some useful macros to handle IP6 addresses 223 */ 224 #define IN6ADDR_ANY_INIT \ 225 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 226 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 227 #define IN6ADDR_LOOPBACK_INIT \ 228 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 229 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 230 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 231 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 232 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 233 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 234 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 235 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 236 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 237 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 238 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 239 240 #ifdef _KERNEL 241 extern const struct in6_addr kin6addr_any; 242 extern const struct in6_addr kin6addr_loopback; 243 extern const struct in6_addr kin6addr_nodelocal_allnodes; 244 extern const struct in6_addr kin6addr_linklocal_allnodes; 245 extern const struct in6_addr kin6addr_linklocal_allrouters; 246 #else 247 extern const struct in6_addr in6addr_any; 248 extern const struct in6_addr in6addr_loopback; 249 extern const struct in6_addr in6addr_nodelocal_allnodes; 250 extern const struct in6_addr in6addr_linklocal_allnodes; 251 #endif 252 253 #define IN6_ARE_ADDR_EQUAL(a, b) \ 254 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 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 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 269 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) 270 271 /* 272 * Loopback 273 */ 274 #define IN6_IS_ADDR_LOOPBACK(a) \ 275 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 276 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) 277 278 /* 279 * Mapped 280 */ 281 #define IN6_IS_ADDR_V4MAPPED(a) \ 282 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 283 (a)->_s6_addr32[2] == ntohl(0x0000ffff)) 284 285 /* 286 * IPv4 compatible. Deprecated by RFC4291. 287 */ 288 #define IN6_IS_ADDR_V4COMPAT(a) \ 289 ((a)->_s6_addr32[0] == 0 && \ 290 (a)->_s6_addr32[1] == 0 && \ 291 (a)->_s6_addr32[2] == 0 && \ 292 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) 293 294 /* 295 * KAME Scope Values 296 */ 297 298 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 299 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 300 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 301 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 302 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 303 304 #ifdef _KERNEL /* XXX nonstandard */ 305 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 306 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 307 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 308 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 309 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 310 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 311 #endif 312 313 /* 314 * Unicast Scope 315 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 316 */ 317 #define IN6_IS_ADDR_LINKLOCAL(a) \ 318 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) 319 #define IN6_IS_ADDR_SITELOCAL(a) \ 320 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) 321 322 /* 323 * Multicast 324 */ 325 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 326 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 327 #ifdef _KERNEL /* XXX nonstandard */ 328 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) 329 #endif 330 331 /* 332 * Multicast Scope 333 */ 334 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 337 338 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 341 342 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 345 346 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 349 350 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 351 (IN6_IS_ADDR_MULTICAST(a) && \ 352 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 353 354 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 355 (IN6_IS_ADDR_MULTICAST(a) && \ 356 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 357 358 #ifdef _KERNEL /* nonstandard */ 359 /* 360 * KAME Scope 361 */ 362 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 363 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) 364 #define IN6_IS_SCOPE_EMBED(a) \ 365 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 366 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 367 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 368 369 370 #define IFA6_IS_DEPRECATED(a) \ 371 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 372 (a)->ia6_lifetime.ia6t_preferred < time_uptime) 373 374 #define IFA6_IS_INVALID(a) \ 375 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 376 (a)->ia6_lifetime.ia6t_expire < time_uptime) 377 #endif 378 379 /* 380 * IP6 route structure 381 */ 382 #ifndef _XOPEN_SOURCE 383 struct route_in6 { 384 struct rtentry *ro_rt; 385 struct sockaddr_in6 ro_dst; 386 }; 387 #endif 388 389 /* 390 * Options for use with [gs]etsockopt at the IPV6 level. 391 * First word of comment is data type; bool is stored in int. 392 */ 393 /* no hdrincl */ 394 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 395 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 396 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 397 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 398 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 399 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 400 #endif 401 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 402 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 403 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 404 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 405 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 406 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 407 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 408 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 409 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 410 /* RFC2292 options */ 411 #ifdef _KERNEL 412 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 413 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 414 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 415 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 416 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 417 #define IPV6_2292RTHDR 24 /* bool; routing header */ 418 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 419 #endif 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 /* 441 * new socket options introduced in RFC3542 442 */ 443 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 444 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 445 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 446 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 447 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 448 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 449 #ifdef _KERNEL 450 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 451 #endif 452 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 453 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 454 455 /* mtuinfo; get the current path MTU (sopt), 456 * 4 bytes int; MTU notification (cmsg) 457 */ 458 #define IPV6_PATHMTU 44 459 #if 0 /*obsoleted during 2292bis -> 3542*/ 460 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 461 (cmsg only/not in of RFC3542) */ 462 #endif 463 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 464 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 465 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 466 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 467 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 468 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 469 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ 470 471 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 472 473 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 474 475 #define IPV6_TCLASS 61 /* int; send traffic class value */ 476 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 477 478 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 479 * the source address. 480 */ 481 /* 482 * The following option is private; do not use it from user applications. 483 * It is deliberately defined to the same value as IP_MSFILTER. 484 */ 485 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 486 * set/get multicast source filter list. 487 */ 488 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 489 490 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 491 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 492 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 493 494 /* 495 * Defaults and limits for options 496 */ 497 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 498 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 499 500 /* 501 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 502 */ 503 struct ipv6_mreq { 504 struct in6_addr ipv6mr_multiaddr; 505 unsigned int ipv6mr_interface; 506 }; 507 508 /* 509 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 510 */ 511 struct in6_pktinfo { 512 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 513 unsigned int ipi6_ifindex; /* send/recv interface index */ 514 }; 515 516 /* 517 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. 518 */ 519 struct ip6_mtuinfo { 520 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 521 uint32_t ip6m_mtu; 522 }; 523 524 /* 525 * Argument for IPV6_PORTRANGE: 526 * - which range to search when port is unspecified at bind() or connect() 527 */ 528 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 529 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 530 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 531 532 #ifndef _XOPEN_SOURCE 533 /* 534 * Definitions for inet6 sysctl operations. 535 * 536 * Third level is protocol number. 537 * Fourth level is desired variable within that protocol. 538 */ 539 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 540 541 #define CTL_IPV6PROTO_NAMES { \ 542 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 543 { 0, 0 }, \ 544 { "tcp6", CTLTYPE_NODE }, \ 545 { 0, 0 }, \ 546 { 0, 0 }, \ 547 { 0, 0 }, \ 548 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 549 { 0, 0 }, \ 550 { 0, 0 }, \ 551 { "udp6", CTLTYPE_NODE }, \ 552 { 0, 0 }, \ 553 { 0, 0 }, \ 554 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 555 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 556 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 557 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 558 { 0, 0 }, \ 559 { "ip6", CTLTYPE_NODE }, \ 560 { 0, 0 }, \ 561 { 0, 0 }, \ 562 { 0, 0 }, \ 563 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 564 { 0, 0 }, \ 565 { "ipsec6", CTLTYPE_NODE }, \ 566 { 0, 0 }, \ 567 { 0, 0 }, \ 568 { 0, 0 }, \ 569 { 0, 0 }, \ 570 { 0, 0 }, \ 571 { 0, 0 }, \ 572 { "icmp6", CTLTYPE_NODE }, \ 573 { 0, 0 }, \ 574 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 575 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 576 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 577 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 578 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 579 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 580 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 581 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 582 { 0, 0 }, \ 583 { 0, 0 }, \ 584 { 0, 0 }, \ 585 { "pim6", CTLTYPE_NODE }, \ 586 } 587 588 /* 589 * Names for IP sysctl objects 590 */ 591 #define IPV6CTL_FORWARDING 1 /* act as router */ 592 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 593 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 594 #ifdef notyet 595 #define IPV6CTL_DEFMTU 4 /* default MTU */ 596 #endif 597 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 598 #define IPV6CTL_STATS 6 /* stats */ 599 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 600 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 601 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 602 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 603 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 604 #define IPV6CTL_ACCEPT_RTADV 12 605 #define IPV6CTL_KEEPFAITH 13 606 #define IPV6CTL_LOG_INTERVAL 14 607 #define IPV6CTL_HDRNESTLIMIT 15 608 #define IPV6CTL_DAD_COUNT 16 609 #define IPV6CTL_AUTO_FLOWLABEL 17 610 #define IPV6CTL_DEFMCASTHLIM 18 611 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 612 #define IPV6CTL_KAME_VERSION 20 613 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 614 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 615 #if 0 /* obsolete */ 616 #define IPV6CTL_MAPPED_ADDR 23 617 #endif 618 #define IPV6CTL_V6ONLY 24 619 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 620 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 621 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 622 623 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 624 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 625 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 626 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 627 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 628 629 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 630 631 /* New entries should be added here from current IPV6CTL_MAXID value. */ 632 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 633 #define IPV6CTL_MAXID 42 634 635 #endif /* !_XOPEN_SOURCE */ 636 637 /* 638 * Redefinition of mbuf flags 639 */ 640 #define M_AUTHIPHDR M_PROTO2 641 #define M_DECRYPTED M_PROTO3 642 #define M_LOOP M_PROTO4 643 #define M_AUTHIPDGM M_PROTO5 644 645 #ifdef _KERNEL 646 647 struct ifnet; 648 struct mbuf; 649 struct sockaddr; 650 struct sockaddr_in; 651 struct sockaddr_in6; 652 653 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); 654 int in6_localaddr (struct in6_addr *); 655 int in6_addrscope (struct in6_addr *); 656 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *); 657 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 658 void in6_if_up (struct ifnet *); 659 660 void in6_sin6_2_sin (struct sockaddr_in *sin, struct sockaddr_in6 *sin6); 661 void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, struct sockaddr_in6 *sin6); 662 void in6_sin6_2_sin_in_sock (struct sockaddr *nam); 663 void in6_sin_2_v4mapsin6_in_sock (struct sockaddr **nam); 664 void addrsel_policy_init (void); 665 666 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 667 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 668 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 669 670 extern int (*faithprefix_p)(struct in6_addr *); 671 #endif /* _KERNEL */ 672 673 #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ 674 675 __BEGIN_DECLS 676 struct cmsghdr; 677 678 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 679 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); 680 int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 681 int inet6_option_init (void *, struct cmsghdr **, int); 682 int inet6_option_next (const struct cmsghdr *, uint8_t **); 683 int inet6_option_space (int); 684 685 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); 686 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); 687 int inet6_opt_finish (void *, socklen_t, int); 688 int inet6_opt_get_val (void *, int, void *, socklen_t); 689 int inet6_opt_init (void *, socklen_t); 690 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); 691 int inet6_opt_set_val (void *, int, void *, socklen_t); 692 693 int inet6_rth_add (void *, const struct in6_addr *); 694 struct in6_addr *inet6_rth_getaddr (const void *, int); 695 void *inet6_rth_init (void *, socklen_t, int, int); 696 int inet6_rth_reverse (const void *, void *); 697 int inet6_rth_segments (const void *); 698 socklen_t inet6_rth_space (int, int); 699 700 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 701 unsigned int); 702 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 703 int inet6_rthdr_getflags (const struct cmsghdr *, int); 704 struct cmsghdr *inet6_rthdr_init (void *, int); 705 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 706 #if 0 /* not implemented yet */ 707 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 708 #endif 709 int inet6_rthdr_segments (const struct cmsghdr *); 710 size_t inet6_rthdr_space (int, int); 711 __END_DECLS 712 713 #endif /* !_NETINET6_IN6_H_ */ 714