1 /* $FreeBSD$ */ 2 /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ */ 3 4 /*- 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /*- 34 * Copyright (c) 1982, 1986, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 4. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)in.h 8.3 (Berkeley) 1/3/94 62 */ 63 64 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 65 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 66 #endif 67 68 #ifndef _NETINET6_IN6_H_ 69 #define _NETINET6_IN6_H_ 70 71 /* 72 * Identification of the network protocol stack 73 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 74 * has the table of implementation/integration differences. 75 */ 76 #define __KAME__ 77 #define __KAME_VERSION "FreeBSD" 78 79 /* 80 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 81 * by the the net.inet.ip.portrange sysctl tree. The following defines exist 82 * for compatibility with userland applications that need them. 83 */ 84 #if __BSD_VISIBLE 85 #define IPV6PORT_RESERVED 1024 86 #define IPV6PORT_ANONMIN 49152 87 #define IPV6PORT_ANONMAX 65535 88 #define IPV6PORT_RESERVEDMIN 600 89 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 90 #endif 91 92 /* 93 * IPv6 address 94 */ 95 struct in6_addr { 96 union { 97 uint8_t __u6_addr8[16]; 98 uint16_t __u6_addr16[8]; 99 uint32_t __u6_addr32[4]; 100 } __u6_addr; /* 128-bit IP6 address */ 101 }; 102 103 #define s6_addr __u6_addr.__u6_addr8 104 #ifdef _KERNEL /* XXX nonstandard */ 105 #define s6_addr8 __u6_addr.__u6_addr8 106 #define s6_addr16 __u6_addr.__u6_addr16 107 #define s6_addr32 __u6_addr.__u6_addr32 108 #endif 109 110 #define INET6_ADDRSTRLEN 46 111 112 /* 113 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 114 */ 115 116 /* 117 * Socket address for IPv6 118 */ 119 #if __BSD_VISIBLE 120 #define SIN6_LEN 121 #endif 122 123 struct sockaddr_in6 { 124 uint8_t sin6_len; /* length of this struct */ 125 sa_family_t sin6_family; /* AF_INET6 */ 126 in_port_t sin6_port; /* Transport layer port # */ 127 uint32_t sin6_flowinfo; /* IP6 flow information */ 128 struct in6_addr sin6_addr; /* IP6 address */ 129 uint32_t sin6_scope_id; /* scope zone index */ 130 }; 131 132 /* 133 * Local definition for masks 134 */ 135 #ifdef _KERNEL /* XXX nonstandard */ 136 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 137 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 138 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 139 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 140 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 141 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 142 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 143 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 144 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 145 #endif 146 147 #ifdef _KERNEL 148 extern const struct sockaddr_in6 sa6_any; 149 150 extern const struct in6_addr in6mask0; 151 extern const struct in6_addr in6mask32; 152 extern const struct in6_addr in6mask64; 153 extern const struct in6_addr in6mask96; 154 extern const struct in6_addr in6mask128; 155 #endif /* _KERNEL */ 156 157 /* 158 * Macros started with IPV6_ADDR is KAME local 159 */ 160 #ifdef _KERNEL /* XXX nonstandard */ 161 #if _BYTE_ORDER == _BIG_ENDIAN 162 #define IPV6_ADDR_INT32_ONE 1 163 #define IPV6_ADDR_INT32_TWO 2 164 #define IPV6_ADDR_INT32_MNL 0xff010000 165 #define IPV6_ADDR_INT32_MLL 0xff020000 166 #define IPV6_ADDR_INT32_SMP 0x0000ffff 167 #define IPV6_ADDR_INT16_ULL 0xfe80 168 #define IPV6_ADDR_INT16_USL 0xfec0 169 #define IPV6_ADDR_INT16_MLL 0xff02 170 #elif _BYTE_ORDER == _LITTLE_ENDIAN 171 #define IPV6_ADDR_INT32_ONE 0x01000000 172 #define IPV6_ADDR_INT32_TWO 0x02000000 173 #define IPV6_ADDR_INT32_MNL 0x000001ff 174 #define IPV6_ADDR_INT32_MLL 0x000002ff 175 #define IPV6_ADDR_INT32_SMP 0xffff0000 176 #define IPV6_ADDR_INT16_ULL 0x80fe 177 #define IPV6_ADDR_INT16_USL 0xc0fe 178 #define IPV6_ADDR_INT16_MLL 0x02ff 179 #endif 180 #endif 181 182 /* 183 * Definition of some useful macros to handle IP6 addresses 184 */ 185 #if __BSD_VISIBLE 186 #define IN6ADDR_ANY_INIT \ 187 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 188 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 189 #define IN6ADDR_LOOPBACK_INIT \ 190 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 191 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 192 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 193 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 195 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 196 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 197 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 198 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 199 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 201 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 202 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 204 #endif 205 206 extern const struct in6_addr in6addr_any; 207 extern const struct in6_addr in6addr_loopback; 208 #if __BSD_VISIBLE 209 extern const struct in6_addr in6addr_nodelocal_allnodes; 210 extern const struct in6_addr in6addr_linklocal_allnodes; 211 extern const struct in6_addr in6addr_linklocal_allrouters; 212 #endif 213 214 /* 215 * Equality 216 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 217 * does not supply memcmp(). For userland memcmp() is preferred as it is 218 * in ANSI standard. 219 */ 220 #ifdef _KERNEL 221 #define IN6_ARE_ADDR_EQUAL(a, b) \ 222 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 223 #else 224 #if __BSD_VISIBLE 225 #define IN6_ARE_ADDR_EQUAL(a, b) \ 226 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 227 #endif 228 #endif 229 230 /* 231 * Unspecified 232 */ 233 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 234 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 235 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 236 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 237 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 238 239 /* 240 * Loopback 241 */ 242 #define IN6_IS_ADDR_LOOPBACK(a) \ 243 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 244 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 245 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 246 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 247 248 /* 249 * IPv4 compatible 250 */ 251 #define IN6_IS_ADDR_V4COMPAT(a) \ 252 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 253 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 254 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 255 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 256 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 257 258 /* 259 * Mapped 260 */ 261 #define IN6_IS_ADDR_V4MAPPED(a) \ 262 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 263 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 264 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 265 266 /* 267 * KAME Scope Values 268 */ 269 270 #ifdef _KERNEL /* XXX nonstandard */ 271 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 272 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 273 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 274 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 275 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 276 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 277 #else 278 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 279 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 280 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 281 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 282 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 283 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 284 #endif 285 286 /* 287 * Unicast Scope 288 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 289 */ 290 #define IN6_IS_ADDR_LINKLOCAL(a) \ 291 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 292 #define IN6_IS_ADDR_SITELOCAL(a) \ 293 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 294 295 /* 296 * Multicast 297 */ 298 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 299 300 #ifdef _KERNEL /* XXX nonstandard */ 301 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 302 #else 303 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 304 #endif 305 306 /* 307 * Multicast Scope 308 */ 309 #ifdef _KERNEL /* refers nonstandard items */ 310 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 311 (IN6_IS_ADDR_MULTICAST(a) && \ 312 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 313 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 314 (IN6_IS_ADDR_MULTICAST(a) && \ 315 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 316 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 317 (IN6_IS_ADDR_MULTICAST(a) && \ 318 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 319 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 320 (IN6_IS_ADDR_MULTICAST(a) && \ 321 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 322 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 323 (IN6_IS_ADDR_MULTICAST(a) && \ 324 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 325 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 326 (IN6_IS_ADDR_MULTICAST(a) && \ 327 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 328 #else 329 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 330 (IN6_IS_ADDR_MULTICAST(a) && \ 331 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 332 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 333 (IN6_IS_ADDR_MULTICAST(a) && \ 334 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 335 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 336 (IN6_IS_ADDR_MULTICAST(a) && \ 337 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 338 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 339 (IN6_IS_ADDR_MULTICAST(a) && \ 340 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 341 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 342 (IN6_IS_ADDR_MULTICAST(a) && \ 343 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 344 #endif 345 346 #ifdef _KERNEL /* nonstandard */ 347 /* 348 * KAME Scope 349 */ 350 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 351 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 352 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 353 354 #define IFA6_IS_DEPRECATED(a) \ 355 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 356 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 357 (a)->ia6_lifetime.ia6t_pltime) 358 #define IFA6_IS_INVALID(a) \ 359 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 360 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 361 (a)->ia6_lifetime.ia6t_vltime) 362 #endif /* _KERNEL */ 363 364 /* 365 * IP6 route structure 366 */ 367 #if __BSD_VISIBLE 368 struct route_in6 { 369 struct rtentry *ro_rt; 370 struct sockaddr_in6 ro_dst; 371 }; 372 #endif 373 374 /* 375 * Options for use with [gs]etsockopt at the IPV6 level. 376 * First word of comment is data type; bool is stored in int. 377 */ 378 /* no hdrincl */ 379 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 380 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 381 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 382 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 383 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 384 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 385 #endif 386 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 387 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 388 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 389 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 390 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 391 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 392 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 393 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 394 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 395 /* RFC2292 options */ 396 #ifdef _KERNEL 397 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 398 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 399 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 400 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 401 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 402 #define IPV6_2292RTHDR 24 /* bool; routing header */ 403 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 404 #endif 405 406 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 407 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 408 #ifndef _KERNEL 409 #define IPV6_BINDV6ONLY IPV6_V6ONLY 410 #endif 411 412 #if 1 /* IPSEC */ 413 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 414 #endif 415 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 416 417 #if 1 /* IPV6FIREWALL */ 418 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 419 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 420 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 421 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 422 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 423 #endif 424 425 /* new socket options introduced in RFC3542 */ 426 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 427 428 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 429 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 430 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 431 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 432 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 433 #ifdef _KERNEL 434 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 435 #endif 436 437 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 438 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 439 440 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 441 4 bytes int; MTU notification (cmsg) */ 442 #if 0 /*obsoleted during 2292bis -> 3542*/ 443 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 444 (cmsg only/not in of RFC3542) */ 445 #endif 446 447 /* more new socket options introduced in RFC3542 */ 448 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 449 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 450 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 451 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 452 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 453 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 454 #if 0 455 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 456 /* obsoleted by RFC3542 */ 457 #endif 458 459 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 460 461 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 462 463 #define IPV6_TCLASS 61 /* int; send traffic class value */ 464 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 465 466 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 467 * the source address. 468 */ 469 470 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 471 472 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 473 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 474 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 475 476 /* 477 * Defaults and limits for options 478 */ 479 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 480 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 481 482 /* 483 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 484 */ 485 struct ipv6_mreq { 486 struct in6_addr ipv6mr_multiaddr; 487 unsigned int ipv6mr_interface; 488 }; 489 490 /* 491 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 492 */ 493 struct in6_pktinfo { 494 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 495 unsigned int ipi6_ifindex; /* send/recv interface index */ 496 }; 497 498 /* 499 * Control structure for IPV6_RECVPATHMTU socket option. 500 */ 501 struct ip6_mtuinfo { 502 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 503 uint32_t ip6m_mtu; 504 }; 505 506 /* 507 * Argument for IPV6_PORTRANGE: 508 * - which range to search when port is unspecified at bind() or connect() 509 */ 510 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 511 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 512 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 513 514 #if __BSD_VISIBLE 515 /* 516 * Definitions for inet6 sysctl operations. 517 * 518 * Third level is protocol number. 519 * Fourth level is desired variable within that protocol. 520 */ 521 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 522 523 /* 524 * Names for IP sysctl objects 525 */ 526 #define IPV6CTL_FORWARDING 1 /* act as router */ 527 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 528 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 529 #ifdef notyet 530 #define IPV6CTL_DEFMTU 4 /* default MTU */ 531 #endif 532 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 533 #define IPV6CTL_STATS 6 /* stats */ 534 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 535 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 536 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 537 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 538 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 539 #define IPV6CTL_ACCEPT_RTADV 12 540 #define IPV6CTL_KEEPFAITH 13 541 #define IPV6CTL_LOG_INTERVAL 14 542 #define IPV6CTL_HDRNESTLIMIT 15 543 #define IPV6CTL_DAD_COUNT 16 544 #define IPV6CTL_AUTO_FLOWLABEL 17 545 #define IPV6CTL_DEFMCASTHLIM 18 546 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 547 #define IPV6CTL_KAME_VERSION 20 548 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 549 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 550 #if 0 /* obsolete */ 551 #define IPV6CTL_MAPPED_ADDR 23 552 #endif 553 #define IPV6CTL_V6ONLY 24 554 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 555 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 556 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 557 558 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 559 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 560 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 561 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 562 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 563 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 564 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 565 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 566 567 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 568 #if 0 569 #define IPV6CTL_IFQ 42 /* ip6intrq node */ 570 #define IPV6CTL_ISATAPRTR 43 /* isatap router */ 571 #endif 572 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 573 574 /* New entries should be added here from current IPV6CTL_MAXID value. */ 575 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 576 #define IPV6CTL_STEALTH 45 577 #define IPV6CTL_MAXID 46 578 #endif /* __BSD_VISIBLE */ 579 580 /* 581 * Redefinition of mbuf flags 582 */ 583 #define M_AUTHIPHDR M_PROTO2 584 #define M_DECRYPTED M_PROTO3 585 #define M_LOOP M_PROTO4 586 #define M_AUTHIPDGM M_PROTO5 587 588 #ifdef _KERNEL 589 struct cmsghdr; 590 591 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 592 int in6_localaddr __P((struct in6_addr *)); 593 int in6_addrscope __P((struct in6_addr *)); 594 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 595 extern void in6_if_up __P((struct ifnet *)); 596 struct sockaddr; 597 extern u_char ip6_protox[]; 598 599 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 600 struct sockaddr_in6 *sin6)); 601 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 602 struct sockaddr_in6 *sin6)); 603 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 604 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 605 extern void addrsel_policy_init __P((void)); 606 607 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 608 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 609 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 610 611 extern int (*faithprefix_p)(struct in6_addr *); 612 #endif /* _KERNEL */ 613 614 #ifndef _SIZE_T_DECLARED 615 typedef __size_t size_t; 616 #define _SIZE_T_DECLARED 617 #endif 618 619 #ifndef _SOCKLEN_T_DECLARED 620 typedef __socklen_t socklen_t; 621 #define _SOCKLEN_T_DECLARED 622 #endif 623 624 #if __BSD_VISIBLE 625 626 __BEGIN_DECLS 627 struct cmsghdr; 628 629 extern int inet6_option_space __P((int)); 630 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 631 extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 632 int, int)); 633 extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 634 extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 635 extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 636 637 extern size_t inet6_rthdr_space __P((int, int)); 638 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 639 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 640 unsigned int)); 641 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 642 #if 0 /* not implemented yet */ 643 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 644 #endif 645 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 646 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 647 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 648 649 extern int inet6_opt_init __P((void *, socklen_t)); 650 extern int inet6_opt_append __P((void *, socklen_t, int, uint8_t, socklen_t, 651 uint8_t, void **)); 652 extern int inet6_opt_finish __P((void *, socklen_t, int)); 653 extern int inet6_opt_set_val __P((void *, int, void *, socklen_t)); 654 655 extern int inet6_opt_next __P((void *, socklen_t, int, uint8_t *, socklen_t *, 656 void **)); 657 extern int inet6_opt_find __P((void *, socklen_t, int, uint8_t, socklen_t *, 658 void **)); 659 extern int inet6_opt_get_val __P((void *, int, void *, socklen_t)); 660 extern socklen_t inet6_rth_space __P((int, int)); 661 extern void *inet6_rth_init __P((void *, socklen_t, int, int)); 662 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 663 extern int inet6_rth_reverse __P((const void *, void *)); 664 extern int inet6_rth_segments __P((const void *)); 665 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 666 __END_DECLS 667 668 #endif /* __BSD_VISIBLE */ 669 670 #endif /* !_NETINET6_IN6_H_ */ 671