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 #define IN6_IS_SCOPE_EMBED(a) \ 354 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 355 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 356 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 357 358 359 #define IFA6_IS_DEPRECATED(a) \ 360 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 361 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 362 (a)->ia6_lifetime.ia6t_pltime) 363 #define IFA6_IS_INVALID(a) \ 364 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 365 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 366 (a)->ia6_lifetime.ia6t_vltime) 367 #endif /* _KERNEL */ 368 369 /* 370 * IP6 route structure 371 */ 372 #if __BSD_VISIBLE 373 struct route_in6 { 374 struct rtentry *ro_rt; 375 struct sockaddr_in6 ro_dst; 376 }; 377 #endif 378 379 /* 380 * Options for use with [gs]etsockopt at the IPV6 level. 381 * First word of comment is data type; bool is stored in int. 382 */ 383 /* no hdrincl */ 384 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 385 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 386 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 387 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 388 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 389 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 390 #endif 391 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 392 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 393 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 394 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 395 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 396 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 397 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 398 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 399 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 400 /* RFC2292 options */ 401 #ifdef _KERNEL 402 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 403 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 404 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 405 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 406 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 407 #define IPV6_2292RTHDR 24 /* bool; routing header */ 408 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 409 #endif 410 411 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 412 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 413 #ifndef _KERNEL 414 #define IPV6_BINDV6ONLY IPV6_V6ONLY 415 #endif 416 417 #ifdef IPSEC 418 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 419 #endif /* IPSEC */ 420 421 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 422 423 #if 1 /* IPV6FIREWALL */ 424 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 425 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 426 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 427 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 428 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 429 #endif 430 431 /* new socket options introduced in RFC3542 */ 432 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 433 434 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 435 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 436 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 437 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 438 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 439 #ifdef _KERNEL 440 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 441 #endif 442 443 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 444 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 445 446 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 447 4 bytes int; MTU notification (cmsg) */ 448 #if 0 /*obsoleted during 2292bis -> 3542*/ 449 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 450 (cmsg only/not in of RFC3542) */ 451 #endif 452 453 /* more new socket options introduced in RFC3542 */ 454 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 455 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 456 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 457 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 458 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 459 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 460 #if 0 461 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 462 /* obsoleted by RFC3542 */ 463 #endif 464 465 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 466 467 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 468 469 #define IPV6_TCLASS 61 /* int; send traffic class value */ 470 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 471 472 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 473 * the source address. 474 */ 475 476 /* 477 * The following option is private; do not use it from user applications. 478 * It is deliberately defined to the same value as IP_MSFILTER. 479 */ 480 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 481 * set/get multicast source filter list. 482 */ 483 484 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 485 486 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 487 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 488 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 489 490 /* 491 * Defaults and limits for options 492 */ 493 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 494 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 495 496 /* 497 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 498 */ 499 struct ipv6_mreq { 500 struct in6_addr ipv6mr_multiaddr; 501 unsigned int ipv6mr_interface; 502 }; 503 504 #ifdef notyet 505 /* 506 * Argument structure for IPV6_ADD_SOURCE_MEMBERSHIP, 507 * IPV6_DROP_SOURCE_MEMBERSHIP, IPV6_BLOCK_SOURCE, and IPV6_UNBLOCK_SOURCE. 508 */ 509 struct ipv6_mreq_source { 510 struct in6_addr ipv6mr_multiaddr; 511 struct in6_addr ipv6mr_sourceaddr; 512 uint32_t ipv6mr_interface; 513 }; 514 #endif 515 516 /* 517 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 518 */ 519 struct in6_pktinfo { 520 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 521 unsigned int ipi6_ifindex; /* send/recv interface index */ 522 }; 523 524 /* 525 * Control structure for IPV6_RECVPATHMTU socket option. 526 */ 527 struct ip6_mtuinfo { 528 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 529 uint32_t ip6m_mtu; 530 }; 531 532 /* 533 * Argument for IPV6_PORTRANGE: 534 * - which range to search when port is unspecified at bind() or connect() 535 */ 536 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 537 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 538 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 539 540 #if __BSD_VISIBLE 541 /* 542 * Definitions for inet6 sysctl operations. 543 * 544 * Third level is protocol number. 545 * Fourth level is desired variable within that protocol. 546 */ 547 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 548 549 /* 550 * Names for IP sysctl objects 551 */ 552 #define IPV6CTL_FORWARDING 1 /* act as router */ 553 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 554 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 555 #ifdef notyet 556 #define IPV6CTL_DEFMTU 4 /* default MTU */ 557 #endif 558 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 559 #define IPV6CTL_STATS 6 /* stats */ 560 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 561 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 562 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 563 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 564 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 565 #define IPV6CTL_ACCEPT_RTADV 12 566 #define IPV6CTL_KEEPFAITH 13 567 #define IPV6CTL_LOG_INTERVAL 14 568 #define IPV6CTL_HDRNESTLIMIT 15 569 #define IPV6CTL_DAD_COUNT 16 570 #define IPV6CTL_AUTO_FLOWLABEL 17 571 #define IPV6CTL_DEFMCASTHLIM 18 572 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 573 #define IPV6CTL_KAME_VERSION 20 574 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 575 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 576 #if 0 /* obsolete */ 577 #define IPV6CTL_MAPPED_ADDR 23 578 #endif 579 #define IPV6CTL_V6ONLY 24 580 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 581 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 582 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 583 584 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 585 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 586 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 587 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 588 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 589 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 590 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 591 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 592 593 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 594 #if 0 595 #define IPV6CTL_IFQ 42 /* ip6intrq node */ 596 #define IPV6CTL_ISATAPRTR 43 /* isatap router */ 597 #endif 598 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 599 600 /* New entries should be added here from current IPV6CTL_MAXID value. */ 601 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 602 #define IPV6CTL_STEALTH 45 603 #define IPV6CTL_MAXID 46 604 #endif /* __BSD_VISIBLE */ 605 606 /* 607 * Redefinition of mbuf flags 608 */ 609 #define M_AUTHIPHDR M_PROTO2 610 #define M_DECRYPTED M_PROTO3 611 #define M_LOOP M_PROTO4 612 #define M_AUTHIPDGM M_PROTO5 613 614 #ifdef _KERNEL 615 struct cmsghdr; 616 617 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 618 int in6_localaddr __P((struct in6_addr *)); 619 int in6_addrscope __P((struct in6_addr *)); 620 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 621 extern void in6_if_up __P((struct ifnet *)); 622 struct sockaddr; 623 extern u_char ip6_protox[]; 624 625 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 626 struct sockaddr_in6 *sin6)); 627 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 628 struct sockaddr_in6 *sin6)); 629 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 630 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 631 extern void addrsel_policy_init __P((void)); 632 633 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 634 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 635 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 636 637 extern int (*faithprefix_p)(struct in6_addr *); 638 #endif /* _KERNEL */ 639 640 #ifndef _SIZE_T_DECLARED 641 typedef __size_t size_t; 642 #define _SIZE_T_DECLARED 643 #endif 644 645 #ifndef _SOCKLEN_T_DECLARED 646 typedef __socklen_t socklen_t; 647 #define _SOCKLEN_T_DECLARED 648 #endif 649 650 #if __BSD_VISIBLE 651 652 __BEGIN_DECLS 653 struct cmsghdr; 654 655 extern int inet6_option_space __P((int)); 656 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 657 extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 658 int, int)); 659 extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 660 extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 661 extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 662 663 extern size_t inet6_rthdr_space __P((int, int)); 664 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 665 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 666 unsigned int)); 667 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 668 #if 0 /* not implemented yet */ 669 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 670 #endif 671 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 672 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 673 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 674 675 extern int inet6_opt_init __P((void *, socklen_t)); 676 extern int inet6_opt_append __P((void *, socklen_t, int, uint8_t, socklen_t, 677 uint8_t, void **)); 678 extern int inet6_opt_finish __P((void *, socklen_t, int)); 679 extern int inet6_opt_set_val __P((void *, int, void *, socklen_t)); 680 681 extern int inet6_opt_next __P((void *, socklen_t, int, uint8_t *, socklen_t *, 682 void **)); 683 extern int inet6_opt_find __P((void *, socklen_t, int, uint8_t, socklen_t *, 684 void **)); 685 extern int inet6_opt_get_val __P((void *, int, void *, socklen_t)); 686 extern socklen_t inet6_rth_space __P((int, int)); 687 extern void *inet6_rth_init __P((void *, socklen_t, int, int)); 688 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 689 extern int inet6_rth_reverse __P((const void *, void *)); 690 extern int inet6_rth_segments __P((const void *)); 691 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 692 __END_DECLS 693 694 #endif /* __BSD_VISIBLE */ 695 696 #endif /* !_NETINET6_IN6_H_ */ 697