1 /* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */ 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 * 3. 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 "20010528/FreeBSD" 78 79 #ifndef _SOCKLEN_T_DECLARED 80 #define _SOCKLEN_T_DECLARED 81 typedef __socklen_t socklen_t; 82 #endif 83 84 /* 85 * Local port number conventions: 86 * 87 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 88 * unless a kernel is compiled with IPNOPRIVPORTS defined. 89 * 90 * When a user does a bind(2) or connect(2) with a port number of zero, 91 * a non-conflicting local port address is chosen. 92 * 93 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 94 * that is settable by sysctl(3); net.inet.ip.anonportmin and 95 * net.inet.ip.anonportmax respectively. 96 * 97 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 98 * default assignment range. 99 * 100 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 101 * 102 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 103 * and exists only for FreeBSD compatibility purposes. 104 * 105 * The value IP_PORTRANGE_LOW changes the range to the "low" are 106 * that is (by convention) restricted to privileged processes. 107 * This convention is based on "vouchsafe" principles only. 108 * It is only secure if you trust the remote host to restrict these ports. 109 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 110 */ 111 112 #define IPV6PORT_RESERVED 1024 113 #define IPV6PORT_ANONMIN 49152 114 #define IPV6PORT_ANONMAX 65535 115 #define IPV6PORT_RESERVEDMIN 600 116 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 117 118 /* 119 * IPv6 address 120 */ 121 #ifndef _STRUCT_IN6_ADDR_DECLARED 122 struct in6_addr { 123 union { 124 uint8_t __u6_addr8[16]; 125 uint16_t __u6_addr16[8]; 126 uint32_t __u6_addr32[4]; 127 } __u6_addr; /* 128-bit IP6 address */ 128 }; 129 #define _STRUCT_IN6_ADDR_DECLARED 130 #endif 131 132 #define s6_addr __u6_addr.__u6_addr8 133 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ 134 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ 135 #if __BSD_VISIBLE /* XXX nonstandard */ 136 #define s6_addr8 __u6_addr.__u6_addr8 137 #define s6_addr16 __u6_addr.__u6_addr16 138 #define s6_addr32 __u6_addr.__u6_addr32 139 #endif 140 141 #define INET6_ADDRSTRLEN 46 142 143 /* 144 * Socket address for IPv6 145 */ 146 #ifndef _XOPEN_SOURCE 147 #define SIN6_LEN 148 #endif 149 struct sockaddr_in6 { 150 uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 151 sa_family_t sin6_family; /* AF_INET6 */ 152 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 153 uint32_t sin6_flowinfo; /* IP6 flow information */ 154 struct in6_addr sin6_addr; /* IP6 address */ 155 uint32_t sin6_scope_id; /* scope zone index */ 156 }; 157 158 /* 159 * Local definition for masks 160 */ 161 #ifdef _KERNEL /* XXX nonstandard */ 162 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 163 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 164 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 165 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 167 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 168 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 169 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 171 #endif 172 173 #ifdef _KERNEL 174 extern const struct sockaddr_in6 sa6_any; 175 176 extern const struct in6_addr in6mask0; 177 extern const struct in6_addr in6mask32; 178 extern const struct in6_addr in6mask64; 179 extern const struct in6_addr in6mask96; 180 extern const struct in6_addr in6mask128; 181 #endif /* _KERNEL */ 182 183 /* 184 * Macros started with IPV6_ADDR is KAME local 185 */ 186 #if BYTE_ORDER == BIG_ENDIAN 187 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 188 #define _IPV6_ADDR_INT16_ULL 0xfe80 189 #define _IPV6_ADDR_INT16_USL 0xfec0 190 #else 191 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff 192 #define _IPV6_ADDR_INT16_ULL 0x80fe 193 #define _IPV6_ADDR_INT16_USL 0xc0fe 194 #endif 195 196 #ifdef _KERNEL /* XXX nonstandard */ 197 #if BYTE_ORDER == BIG_ENDIAN 198 #define IPV6_ADDR_INT32_ONE 1 199 #define IPV6_ADDR_INT32_TWO 2 200 #define IPV6_ADDR_INT32_MNL 0xff010000 201 #define IPV6_ADDR_INT32_MLL 0xff020000 202 #define IPV6_ADDR_INT32_SMP 0x0000ffff 203 #define IPV6_ADDR_INT16_MLL 0xff02 204 #elif BYTE_ORDER == LITTLE_ENDIAN 205 #define IPV6_ADDR_INT32_ONE 0x01000000 206 #define IPV6_ADDR_INT32_TWO 0x02000000 207 #define IPV6_ADDR_INT32_MNL 0x000001ff 208 #define IPV6_ADDR_INT32_MLL 0x000002ff 209 #define IPV6_ADDR_INT32_SMP 0xffff0000 210 #define IPV6_ADDR_INT16_MLL 0x02ff 211 #endif 212 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL 213 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL 214 #endif 215 216 /* 217 * Definition of some useful macros to handle IP6 addresses 218 */ 219 #define IN6ADDR_ANY_INIT \ 220 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 222 #define IN6ADDR_LOOPBACK_INIT \ 223 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 225 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 226 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 227 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 228 #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ 229 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 230 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 231 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 232 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 233 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 234 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 235 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 236 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 237 #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \ 238 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 239 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}} 240 241 #ifdef _KERNEL 242 extern const struct in6_addr kin6addr_any; 243 extern const struct in6_addr kin6addr_loopback; 244 extern const struct in6_addr kin6addr_nodelocal_allnodes; 245 extern const struct in6_addr kin6addr_linklocal_allnodes; 246 extern const struct in6_addr kin6addr_linklocal_allrouters; 247 #else 248 extern const struct in6_addr in6addr_any; 249 extern const struct in6_addr in6addr_loopback; 250 extern const struct in6_addr in6addr_nodelocal_allnodes; 251 extern const struct in6_addr in6addr_linklocal_allnodes; 252 #endif 253 254 #define IN6_ARE_ADDR_EQUAL(a, b) \ 255 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 256 257 #ifdef _KERNEL /* non standard */ 258 /* see if two addresses are equal in a scope-conscious manner. */ 259 #define SA6_ARE_ADDR_EQUAL(a, b) \ 260 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 261 (a)->sin6_scope_id == (b)->sin6_scope_id) && \ 262 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 263 #endif 264 265 /* 266 * Unspecified 267 */ 268 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 269 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 270 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) 271 272 /* 273 * Loopback 274 */ 275 #define IN6_IS_ADDR_LOOPBACK(a) \ 276 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 277 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) 278 279 /* 280 * Mapped 281 */ 282 #define IN6_IS_ADDR_V4MAPPED(a) \ 283 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 284 (a)->_s6_addr32[2] == ntohl(0x0000ffff)) 285 286 /* 287 * IPv4 compatible. Deprecated by RFC4291. 288 */ 289 #define IN6_IS_ADDR_V4COMPAT(a) \ 290 ((a)->_s6_addr32[0] == 0 && \ 291 (a)->_s6_addr32[1] == 0 && \ 292 (a)->_s6_addr32[2] == 0 && \ 293 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) 294 295 /* 296 * KAME Scope Values 297 */ 298 299 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 300 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 301 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 302 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 303 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 304 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 305 306 #ifdef _KERNEL /* XXX nonstandard */ 307 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 308 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 309 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 310 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 311 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 312 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 313 #endif 314 315 /* 316 * Unicast Scope 317 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 318 */ 319 #define IN6_IS_ADDR_LINKLOCAL(a) \ 320 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) 321 #define IN6_IS_ADDR_SITELOCAL(a) \ 322 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) 323 324 /* 325 * Multicast 326 */ 327 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 328 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 329 #ifdef _KERNEL /* XXX nonstandard */ 330 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) 331 #endif 332 333 /* 334 * Multicast Scope 335 */ 336 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 339 340 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 343 344 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 345 (IN6_IS_ADDR_MULTICAST(a) && \ 346 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 347 348 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 349 (IN6_IS_ADDR_MULTICAST(a) && \ 350 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 351 352 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 353 (IN6_IS_ADDR_MULTICAST(a) && \ 354 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 355 356 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 357 (IN6_IS_ADDR_MULTICAST(a) && \ 358 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 359 360 #ifdef _KERNEL /* nonstandard */ 361 /* 362 * KAME Scope 363 */ 364 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 365 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) 366 #define IN6_IS_SCOPE_EMBED(a) \ 367 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 368 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 369 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 370 371 372 #define IFA6_IS_DEPRECATED(a) \ 373 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 374 (a)->ia6_lifetime.ia6t_preferred < time_uptime) 375 376 #define IFA6_IS_INVALID(a) \ 377 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 378 (a)->ia6_lifetime.ia6t_expire < time_uptime) 379 #endif 380 381 /* 382 * IP6 route structure 383 */ 384 #ifndef _XOPEN_SOURCE 385 struct route_in6 { 386 struct rtentry *ro_rt; 387 struct sockaddr_in6 ro_dst; 388 }; 389 #endif 390 391 /* 392 * Options for use with [gs]etsockopt at the IPV6 level. 393 * First word of comment is data type; bool is stored in int. 394 */ 395 /* no hdrincl */ 396 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 397 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 398 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 399 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 400 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 401 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 402 #endif 403 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 404 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 405 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 406 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 407 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 408 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 409 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 410 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 411 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 412 /* RFC2292 options */ 413 #ifdef _KERNEL 414 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 415 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 416 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 417 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 418 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 419 #define IPV6_2292RTHDR 24 /* bool; routing header */ 420 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 421 #endif 422 423 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 424 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 425 #ifndef _KERNEL 426 #define IPV6_BINDV6ONLY IPV6_V6ONLY 427 #endif 428 429 #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 /* 438 * new socket options introduced in RFC3542 439 */ 440 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 441 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 442 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 443 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 444 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 445 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 446 #ifdef _KERNEL 447 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 448 #endif 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 /* mtuinfo; get the current path MTU (sopt), 453 * 4 bytes int; MTU notification (cmsg) 454 */ 455 #define IPV6_PATHMTU 44 456 #if 0 /*obsoleted during 2292bis -> 3542*/ 457 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 458 (cmsg only/not in of RFC3542) */ 459 #endif 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 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ 467 468 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 469 470 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 471 472 #define IPV6_TCLASS 61 /* int; send traffic class value */ 473 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 474 475 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 476 * the source address. 477 */ 478 /* 479 * The following option is private; do not use it from user applications. 480 * It is deliberately defined to the same value as IP_MSFILTER. 481 */ 482 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 483 * set/get multicast source filter list. 484 */ 485 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 486 487 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 488 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 489 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 490 491 /* 492 * Defaults and limits for options 493 */ 494 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 495 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 496 497 /* 498 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 499 */ 500 struct ipv6_mreq { 501 struct in6_addr ipv6mr_multiaddr; 502 unsigned int ipv6mr_interface; 503 }; 504 505 /* 506 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 507 */ 508 struct in6_pktinfo { 509 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 510 unsigned int ipi6_ifindex; /* send/recv interface index */ 511 }; 512 513 /* 514 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. 515 */ 516 struct ip6_mtuinfo { 517 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 518 uint32_t ip6m_mtu; 519 }; 520 521 /* 522 * Argument for IPV6_PORTRANGE: 523 * - which range to search when port is unspecified at bind() or connect() 524 */ 525 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 526 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 527 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 528 529 #ifndef _XOPEN_SOURCE 530 /* 531 * Definitions for inet6 sysctl operations. 532 * 533 * Third level is protocol number. 534 * Fourth level is desired variable within that protocol. 535 */ 536 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 537 538 /* 539 * Names for IP sysctl objects 540 */ 541 #define IPV6CTL_FORWARDING 1 /* act as router */ 542 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 543 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 544 #ifdef notyet 545 #define IPV6CTL_DEFMTU 4 /* default MTU */ 546 #endif 547 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 548 #define IPV6CTL_STATS 6 /* stats */ 549 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 550 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 551 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 552 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 553 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 554 #define IPV6CTL_ACCEPT_RTADV 12 555 #define IPV6CTL_LOG_INTERVAL 14 556 #define IPV6CTL_HDRNESTLIMIT 15 557 #define IPV6CTL_DAD_COUNT 16 558 #define IPV6CTL_AUTO_FLOWLABEL 17 559 #define IPV6CTL_DEFMCASTHLIM 18 560 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 561 #define IPV6CTL_KAME_VERSION 20 562 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 563 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 564 #if 0 /* obsolete */ 565 #define IPV6CTL_MAPPED_ADDR 23 566 #define IPV6CTL_V6ONLY 24 567 #endif 568 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 569 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 570 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 571 572 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 573 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 574 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 575 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 576 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 577 578 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 579 #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */ 580 581 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 582 583 /* New entries should be added here from current IPV6CTL_MAXID value. */ 584 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 585 586 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 587 #define IPV6CTL_MAXID 48 588 #endif /* !_XOPEN_SOURCE */ 589 590 /* 591 * Redefinition of mbuf flags 592 */ 593 #define M_AUTHIPHDR M_PROTO2 594 #define M_DECRYPTED M_PROTO3 595 #define M_LOOP M_PROTO4 596 #define M_AUTHIPDGM M_PROTO5 597 598 #ifdef _KERNEL 599 600 struct ifnet; 601 struct mbuf; 602 struct sockaddr; 603 struct sockaddr_in; 604 struct sockaddr_in6; 605 606 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); 607 int in6_localaddr (struct in6_addr *); 608 int in6_addrscope (struct in6_addr *); 609 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *); 610 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 611 612 void addrsel_policy_init (void); 613 614 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 615 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 616 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 617 #endif /* _KERNEL */ 618 619 #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ 620 621 __BEGIN_DECLS 622 struct cmsghdr; 623 624 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 625 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); 626 int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 627 int inet6_option_init (void *, struct cmsghdr **, int); 628 int inet6_option_next (const struct cmsghdr *, uint8_t **); 629 int inet6_option_space (int); 630 631 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); 632 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); 633 int inet6_opt_finish (void *, socklen_t, int); 634 int inet6_opt_get_val (void *, int, void *, socklen_t); 635 int inet6_opt_init (void *, socklen_t); 636 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); 637 int inet6_opt_set_val (void *, int, void *, socklen_t); 638 639 int inet6_rth_add (void *, const struct in6_addr *); 640 struct in6_addr *inet6_rth_getaddr (const void *, int); 641 void *inet6_rth_init (void *, socklen_t, int, int); 642 int inet6_rth_reverse (const void *, void *); 643 int inet6_rth_segments (const void *); 644 socklen_t inet6_rth_space (int, int); 645 646 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 647 unsigned int); 648 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 649 int inet6_rthdr_getflags (const struct cmsghdr *, int); 650 struct cmsghdr *inet6_rthdr_init (void *, int); 651 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 652 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 653 int inet6_rthdr_segments (const struct cmsghdr *); 654 size_t inet6_rthdr_space (int, int); 655 __END_DECLS 656 657 #endif /* !_NETINET6_IN6_H_ */ 658