1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $ 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. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 */ 62 63 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 64 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 65 #endif 66 67 #ifndef _NETINET6_IN6_H_ 68 #define _NETINET6_IN6_H_ 69 70 /* 71 * Identification of the network protocol stack 72 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 73 * has the table of implementation/integration differences. 74 */ 75 #define __KAME__ 76 #define __KAME_VERSION "FreeBSD" 77 78 /* 79 * IPv6 port allocation rules should mirror the IPv4 rules and are controlled 80 * by the net.inet.ip.portrange sysctl tree. The following defines exist 81 * for compatibility with userland applications that need them. 82 */ 83 #if __BSD_VISIBLE 84 #define IPV6PORT_RESERVED 1024 85 #define IPV6PORT_ANONMIN 49152 86 #define IPV6PORT_ANONMAX 65535 87 #define IPV6PORT_RESERVEDMIN 600 88 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 89 #endif 90 91 /* 92 * IPv6 address 93 */ 94 struct in6_addr { 95 union { 96 uint8_t __u6_addr8[16]; 97 uint16_t __u6_addr16[8]; 98 uint32_t __u6_addr32[4]; 99 } __u6_addr; /* 128-bit IP6 address */ 100 }; 101 102 #define s6_addr __u6_addr.__u6_addr8 103 #if defined(_KERNEL) || defined(_STANDALONE) /* XXX nonstandard */ 104 #define s6_addr8 __u6_addr.__u6_addr8 105 #define s6_addr16 __u6_addr.__u6_addr16 106 #define s6_addr32 __u6_addr.__u6_addr32 107 #endif 108 109 #define INET6_ADDRSTRLEN 46 110 111 /* 112 * XXX missing POSIX.1-2001 macro IPPROTO_IPV6. 113 */ 114 115 /* 116 * Socket address for IPv6 117 */ 118 #if __BSD_VISIBLE 119 #define SIN6_LEN 120 #endif 121 122 struct sockaddr_in6 { 123 uint8_t sin6_len; /* length of this struct */ 124 sa_family_t sin6_family; /* AF_INET6 */ 125 in_port_t sin6_port; /* Transport layer port # */ 126 uint32_t sin6_flowinfo; /* IP6 flow information */ 127 struct in6_addr sin6_addr; /* IP6 address */ 128 uint32_t sin6_scope_id; /* scope zone index */ 129 }; 130 131 /* 132 * Local definition for masks 133 */ 134 #ifdef _KERNEL /* XXX nonstandard */ 135 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 136 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 137 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 138 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 139 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 140 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 141 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 142 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 143 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 144 #endif 145 146 #ifdef _KERNEL 147 extern const struct sockaddr_in6 sa6_any; 148 149 extern const struct in6_addr in6mask0; 150 extern const struct in6_addr in6mask32; 151 extern const struct in6_addr in6mask64; 152 extern const struct in6_addr in6mask96; 153 extern const struct in6_addr in6mask128; 154 #endif /* _KERNEL */ 155 156 /* 157 * Macros started with IPV6_ADDR is KAME local 158 */ 159 #ifdef _KERNEL /* XXX nonstandard */ 160 #if _BYTE_ORDER == _BIG_ENDIAN 161 #define IPV6_ADDR_INT32_ONE 1 162 #define IPV6_ADDR_INT32_TWO 2 163 #define IPV6_ADDR_INT32_MNL 0xff010000 164 #define IPV6_ADDR_INT32_MLL 0xff020000 165 #define IPV6_ADDR_INT32_SMP 0x0000ffff 166 #define IPV6_ADDR_INT16_ULL 0xfe80 167 #define IPV6_ADDR_INT16_USL 0xfec0 168 #define IPV6_ADDR_INT16_MLL 0xff02 169 #elif _BYTE_ORDER == _LITTLE_ENDIAN 170 #define IPV6_ADDR_INT32_ONE 0x01000000 171 #define IPV6_ADDR_INT32_TWO 0x02000000 172 #define IPV6_ADDR_INT32_MNL 0x000001ff 173 #define IPV6_ADDR_INT32_MLL 0x000002ff 174 #define IPV6_ADDR_INT32_SMP 0xffff0000 175 #define IPV6_ADDR_INT16_ULL 0x80fe 176 #define IPV6_ADDR_INT16_USL 0xc0fe 177 #define IPV6_ADDR_INT16_MLL 0x02ff 178 #endif 179 #endif 180 181 /* 182 * Definition of some useful macros to handle IP6 addresses 183 */ 184 #if __BSD_VISIBLE 185 #define IN6ADDR_ANY_INIT \ 186 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 187 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 188 #define IN6ADDR_LOOPBACK_INIT \ 189 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 190 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 191 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 192 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 193 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 194 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 195 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 197 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 198 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 199 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 200 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 201 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 203 #define IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \ 204 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}} 206 #endif 207 208 extern const struct in6_addr in6addr_any; 209 extern const struct in6_addr in6addr_loopback; 210 #if __BSD_VISIBLE 211 extern const struct in6_addr in6addr_nodelocal_allnodes; 212 extern const struct in6_addr in6addr_linklocal_allnodes; 213 extern const struct in6_addr in6addr_linklocal_allrouters; 214 extern const struct in6_addr in6addr_linklocal_allv2routers; 215 #endif 216 217 /* 218 * Equality 219 */ 220 #if __BSD_VISIBLE 221 #define IN6_ARE_ADDR_EQUAL(a, b) \ 222 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 223 #endif 224 225 /* 226 * Unspecified 227 */ 228 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 229 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 230 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 231 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 232 (a)->__u6_addr.__u6_addr32[3] == 0) 233 234 /* 235 * Loopback 236 */ 237 #define IN6_IS_ADDR_LOOPBACK(a) \ 238 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 239 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 240 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 241 (a)->__u6_addr.__u6_addr32[3] == ntohl(1)) 242 243 /* 244 * IPv4 compatible 245 */ 246 #define IN6_IS_ADDR_V4COMPAT(a) \ 247 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 248 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 249 (a)->__u6_addr.__u6_addr32[2] == 0 && \ 250 (a)->__u6_addr.__u6_addr32[3] != 0 && \ 251 (a)->__u6_addr.__u6_addr32[3] != ntohl(1)) 252 253 /* 254 * Mapped 255 */ 256 #define IN6_IS_ADDR_V4MAPPED(a) \ 257 ((a)->__u6_addr.__u6_addr32[0] == 0 && \ 258 (a)->__u6_addr.__u6_addr32[1] == 0 && \ 259 (a)->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff)) 260 261 /* 262 * KAME Scope Values 263 */ 264 265 #ifdef _KERNEL /* XXX nonstandard */ 266 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 267 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 268 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 269 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 270 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 271 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 272 #else 273 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 274 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 275 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 276 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 277 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 278 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 279 #endif 280 281 /* 282 * Unicast Scope 283 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 284 */ 285 #define IN6_IS_ADDR_LINKLOCAL(a) \ 286 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 287 #define IN6_IS_ADDR_SITELOCAL(a) \ 288 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 289 290 /* 291 * Multicast 292 */ 293 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 294 295 #ifdef _KERNEL /* XXX nonstandard */ 296 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 297 #else 298 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 299 #endif 300 301 /* 302 * Multicast Scope 303 */ 304 #ifdef _KERNEL /* refers nonstandard items */ 305 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 306 (IN6_IS_ADDR_MULTICAST(a) && \ 307 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 308 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 309 (IN6_IS_ADDR_MULTICAST(a) && \ 310 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 311 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 312 (IN6_IS_ADDR_MULTICAST(a) && \ 313 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 314 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 317 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 320 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 323 #else 324 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 325 (IN6_IS_ADDR_MULTICAST(a) && \ 326 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 327 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 330 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 333 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 336 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 339 #endif 340 341 #ifdef _KERNEL /* nonstandard */ 342 /* 343 * KAME Scope 344 */ 345 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 346 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 347 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 348 #define IN6_IS_SCOPE_EMBED(a) \ 349 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 350 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 351 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 352 353 #define IFA6_IS_DEPRECATED(a) \ 354 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 355 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 356 (a)->ia6_lifetime.ia6t_pltime) 357 #define IFA6_IS_INVALID(a) \ 358 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 359 (u_int32_t)((time_uptime - (a)->ia6_updatetime)) > \ 360 (a)->ia6_lifetime.ia6t_vltime) 361 #endif /* _KERNEL */ 362 363 /* 364 * IP6 route structure 365 */ 366 #if __BSD_VISIBLE 367 struct nhop_object; 368 struct route_in6 { 369 struct nhop_object *ro_nh; 370 struct llentry *ro_lle; 371 /* 372 * ro_prepend and ro_plen are only used for bpf to pass in a 373 * preformed header. They are not cacheable. 374 */ 375 char *ro_prepend; 376 uint16_t ro_plen; 377 uint16_t ro_flags; 378 uint16_t ro_mtu; /* saved ro_rt mtu */ 379 uint16_t spare; 380 struct sockaddr_in6 ro_dst; 381 }; 382 #endif 383 384 #ifdef _KERNEL 385 #define MTAG_ABI_IPV6 1444287380 /* IPv6 ABI */ 386 #define IPV6_TAG_DIRECT 0 /* direct-dispatch IPv6 */ 387 #endif /* _KERNEL */ 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 /* ipv6_mreq; join a group membership */ 407 #define IPV6_LEAVE_GROUP 13 /* ipv6_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; make AF_INET6 sockets v6 only */ 423 #ifndef _KERNEL 424 #define IPV6_BINDV6ONLY IPV6_V6ONLY 425 #endif 426 427 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 428 /* 29; unused; was IPV6_FAITH */ 429 #if 1 /* IPV6FIREWALL */ 430 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 431 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 432 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 433 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 434 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 435 #endif 436 437 /* new socket options introduced in RFC3542 */ 438 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 439 440 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 441 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 442 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 443 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 444 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 445 #ifdef _KERNEL 446 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 447 #endif 448 449 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 450 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 451 452 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 453 4 bytes int; MTU notification (cmsg) */ 454 #if 0 /*obsoleted during 2292bis -> 3542*/ 455 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 456 (cmsg only/not in of RFC3542) */ 457 #endif 458 459 /* more new socket options introduced in RFC3542 */ 460 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 461 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 462 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 463 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 464 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 465 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 466 #if 0 467 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options */ 468 /* obsoleted by RFC3542 */ 469 #endif 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 #define IPV6_BINDANY 64 /* bool: allow bind to any address */ 483 /* unused; was IPV6_BIND_MULTI */ 484 /* unused; was IPV6_RSS_LISTEN_BUCKET */ 485 #define IPV6_FLOWID 67 /* int; flowid of given socket */ 486 #define IPV6_FLOWTYPE 68 /* int; flowtype of given socket */ 487 #define IPV6_RSSBUCKETID 69 /* int; RSS bucket ID of given socket */ 488 #define IPV6_RECVFLOWID 70 /* bool; receive IP6 flowid/flowtype w/ datagram */ 489 #define IPV6_RECVRSSBUCKETID 71 /* bool; receive IP6 RSS bucket id w/ datagram */ 490 491 #define IPV6_ORIGDSTADDR 72 /* bool: allow getting dstaddr /port info */ 492 #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR 493 494 /* 495 * The following option is private; do not use it from user applications. 496 * It is deliberately defined to the same value as IP_MSFILTER. 497 */ 498 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 499 * set/get multicast source filter list. 500 */ 501 502 /* The following option deals with the 802.1Q Ethernet Priority Code Point */ 503 #define IPV6_VLAN_PCP 75 /* int; set/get PCP used for packet, */ 504 /* -1 use interface default */ 505 506 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 507 508 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 509 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 510 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 511 512 /* 513 * Defaults and limits for options 514 */ 515 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 516 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 517 518 /* 519 * Limit for IPv6 multicast memberships 520 */ 521 #define IPV6_MAX_MEMBERSHIPS 4095 522 523 /* 524 * Default resource limits for IPv6 multicast source filtering. 525 * These may be modified by sysctl. 526 */ 527 #define IPV6_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 528 #define IPV6_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 529 530 /* 531 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 532 */ 533 struct ipv6_mreq { 534 struct in6_addr ipv6mr_multiaddr; 535 unsigned int ipv6mr_interface; 536 }; 537 538 /* 539 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 540 */ 541 struct in6_pktinfo { 542 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 543 unsigned int ipi6_ifindex; /* send/recv interface index */ 544 }; 545 546 /* 547 * Control structure for IPV6_RECVPATHMTU socket option. 548 */ 549 struct ip6_mtuinfo { 550 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 551 uint32_t ip6m_mtu; 552 }; 553 554 /* 555 * Argument for IPV6_PORTRANGE: 556 * - which range to search when port is unspecified at bind() or connect() 557 */ 558 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 559 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 560 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 561 562 #if __BSD_VISIBLE 563 /* 564 * Definitions for inet6 sysctl operations. 565 * 566 * Third level is protocol number. 567 * Fourth level is desired variable within that protocol. 568 */ 569 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 570 571 /* 572 * Names for IP sysctl objects 573 */ 574 #define IPV6CTL_FORWARDING 1 /* act as router */ 575 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 576 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 577 #ifdef notyet 578 #define IPV6CTL_DEFMTU 4 /* default MTU */ 579 #endif 580 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 581 #define IPV6CTL_STATS 6 /* stats */ 582 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 583 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 584 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 585 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 586 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 587 #define IPV6CTL_ACCEPT_RTADV 12 588 /* 13; unused; was: IPV6CTL_KEEPFAITH */ 589 #define IPV6CTL_LOG_INTERVAL 14 590 #define IPV6CTL_HDRNESTLIMIT 15 591 #define IPV6CTL_DAD_COUNT 16 592 #define IPV6CTL_AUTO_FLOWLABEL 17 593 #define IPV6CTL_DEFMCASTHLIM 18 594 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 595 #define IPV6CTL_KAME_VERSION 20 596 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 597 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 598 #if 0 /* obsolete */ 599 #define IPV6CTL_MAPPED_ADDR 23 600 #endif 601 #define IPV6CTL_V6ONLY 24 602 /* IPV6CTL_RTEXPIRE 25 deprecated */ 603 /* IPV6CTL_RTMINEXPIRE 26 deprecated */ 604 /* IPV6CTL_RTMAXCACHE 27 deprecated */ 605 606 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 607 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 608 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 609 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 610 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 611 #define IPV6CTL_PREFER_TEMPADDR 37 /* prefer temporary addr as src */ 612 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 613 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 614 615 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 616 #if 0 617 #define IPV6CTL_IFQ 42 /* ip6intrq node */ 618 #define IPV6CTL_ISATAPRTR 43 /* isatap router */ 619 #endif 620 #define IPV6CTL_MCAST_PMTU 44 /* enable pMTU discovery for multicast? */ 621 622 /* New entries should be added here from current IPV6CTL_MAXID value. */ 623 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 624 #define IPV6CTL_STEALTH 45 625 626 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 627 #define IPV6CTL_NO_RADR 48 /* No defroute from RA */ 628 #define IPV6CTL_NORBIT_RAIF 49 /* Disable R-bit in NA on RA 629 * receiving IF. */ 630 #define IPV6CTL_RFC6204W3 50 /* Accept defroute even when forwarding 631 enabled */ 632 #define IPV6CTL_INTRQMAXLEN 51 /* max length of IPv6 netisr queue */ 633 #define IPV6CTL_INTRDQMAXLEN 52 /* max length of direct IPv6 netisr 634 * queue */ 635 #define IPV6CTL_MAXFRAGSPERPACKET 53 /* Max fragments per packet */ 636 #define IPV6CTL_MAXFRAGBUCKETSIZE 54 /* Max reassembly queues per bucket */ 637 #define IPV6CTL_MAXID 55 638 #endif /* __BSD_VISIBLE */ 639 640 /* 641 * Since both netinet/ and netinet6/ call into netipsec/ and netpfil/, 642 * the protocol specific mbuf flags are shared between them. 643 */ 644 #define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */ 645 #define M_IP6_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 646 #define M_IP_NEXTHOP M_PROTO2 /* explicit ip nexthop */ 647 #define M_SKIP_FIREWALL M_PROTO3 /* skip firewall processing */ 648 #define M_AUTHIPHDR M_PROTO4 649 #define M_DECRYPTED M_PROTO5 650 #define M_LOOP M_PROTO6 651 #define M_AUTHIPDGM M_PROTO7 652 #define M_RTALERT_MLD M_PROTO8 653 #define M_FRAGMENTED M_PROTO9 /* contained fragment header */ 654 655 #ifdef _KERNEL 656 struct cmsghdr; 657 struct ip6_hdr; 658 659 int in6_cksum(struct mbuf *, uint8_t, uint32_t, uint32_t); 660 int in6_cksum_partial(struct mbuf *, uint8_t, uint32_t, uint32_t, uint32_t); 661 int in6_cksum_pseudo(struct ip6_hdr *, uint32_t, uint8_t, uint16_t); 662 663 int in6_localaddr(struct in6_addr *); 664 int in6_localip(struct in6_addr *); 665 bool in6_localip_fib(struct in6_addr *, uint16_t); 666 int in6_ifhasaddr(struct ifnet *, struct in6_addr *); 667 int in6_addrscope(const struct in6_addr *); 668 char *ip6_sprintf(char *, const struct in6_addr *); 669 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 670 extern void in6_if_up(struct ifnet *); 671 struct sockaddr; 672 673 void in6_sin6_2_sin(struct sockaddr_in *sin, 674 struct sockaddr_in6 *sin6); 675 void in6_sin_2_v4mapsin6(struct sockaddr_in *sin, 676 struct sockaddr_in6 *sin6); 677 void in6_sin6_2_sin_in_sock(struct sockaddr *nam); 678 extern void addrsel_policy_init(void); 679 680 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 681 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 682 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 683 684 #endif /* _KERNEL */ 685 686 #ifndef _SIZE_T_DECLARED 687 typedef __size_t size_t; 688 #define _SIZE_T_DECLARED 689 #endif 690 691 #ifndef _SOCKLEN_T_DECLARED 692 typedef __socklen_t socklen_t; 693 #define _SOCKLEN_T_DECLARED 694 #endif 695 696 #if __BSD_VISIBLE 697 698 __BEGIN_DECLS 699 struct cmsghdr; 700 701 extern int inet6_option_space(int); 702 extern int inet6_option_init(void *, struct cmsghdr **, int); 703 extern int inet6_option_append(struct cmsghdr *, const uint8_t *, 704 int, int); 705 extern uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 706 extern int inet6_option_next(const struct cmsghdr *, uint8_t **); 707 extern int inet6_option_find(const struct cmsghdr *, uint8_t **, int); 708 709 extern size_t inet6_rthdr_space(int, int); 710 extern struct cmsghdr *inet6_rthdr_init(void *, int); 711 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 712 unsigned int); 713 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 714 #if 0 /* not implemented yet */ 715 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 716 #endif 717 extern int inet6_rthdr_segments(const struct cmsghdr *); 718 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 719 extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 720 721 extern int inet6_opt_init(void *, socklen_t); 722 extern int inet6_opt_append(void *, socklen_t, int, uint8_t, socklen_t, 723 uint8_t, void **); 724 extern int inet6_opt_finish(void *, socklen_t, int); 725 extern int inet6_opt_set_val(void *, int, void *, socklen_t); 726 727 extern int inet6_opt_next(void *, socklen_t, int, uint8_t *, socklen_t *, 728 void **); 729 extern int inet6_opt_find(void *, socklen_t, int, uint8_t, socklen_t *, 730 void **); 731 extern int inet6_opt_get_val(void *, int, void *, socklen_t); 732 extern socklen_t inet6_rth_space(int, int); 733 extern void *inet6_rth_init(void *, socklen_t, int, int); 734 extern int inet6_rth_add(void *, const struct in6_addr *); 735 extern int inet6_rth_reverse(const void *, void *); 736 extern int inet6_rth_segments(const void *); 737 extern struct in6_addr *inet6_rth_getaddr(const void *, int); 738 __END_DECLS 739 740 #endif /* __BSD_VISIBLE */ 741 742 #endif /* !_NETINET6_IN6_H_ */ 743