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. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in.h 8.3 (Berkeley) 1/3/94 66 */ 67 68 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 69 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 70 #endif 71 72 #ifndef _NETINET6_IN6_H_ 73 #define _NETINET6_IN6_H_ 74 75 /* 76 * Identification of the network protocol stack 77 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 78 * has the table of implementation/integration differences. 79 */ 80 #define __KAME__ 81 #define __KAME_VERSION "20010528/FreeBSD" 82 83 #ifndef _SOCKLEN_T_DECLARED 84 #define _SOCKLEN_T_DECLARED 85 typedef __socklen_t socklen_t; 86 #endif 87 88 /* 89 * Local port number conventions: 90 * 91 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 92 * unless a kernel is compiled with IPNOPRIVPORTS defined. 93 * 94 * When a user does a bind(2) or connect(2) with a port number of zero, 95 * a non-conflicting local port address is chosen. 96 * 97 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 98 * that is settable by sysctl(3); net.inet.ip.anonportmin and 99 * net.inet.ip.anonportmax respectively. 100 * 101 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 102 * default assignment range. 103 * 104 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 105 * 106 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 107 * and exists only for FreeBSD compatibility purposes. 108 * 109 * The value IP_PORTRANGE_LOW changes the range to the "low" are 110 * that is (by convention) restricted to privileged processes. 111 * This convention is based on "vouchsafe" principles only. 112 * It is only secure if you trust the remote host to restrict these ports. 113 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 114 */ 115 116 #define IPV6PORT_RESERVED 1024 117 #define IPV6PORT_ANONMIN 49152 118 #define IPV6PORT_ANONMAX 65535 119 #define IPV6PORT_RESERVEDMIN 600 120 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 121 122 /* 123 * IPv6 address 124 */ 125 #ifndef _STRUCT_IN6_ADDR_DECLARED 126 struct in6_addr { 127 union { 128 uint8_t __u6_addr8[16]; 129 uint16_t __u6_addr16[8]; 130 uint32_t __u6_addr32[4]; 131 } __u6_addr; /* 128-bit IP6 address */ 132 }; 133 #define _STRUCT_IN6_ADDR_DECLARED 134 #endif 135 136 #define s6_addr __u6_addr.__u6_addr8 137 #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ 138 #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ 139 #if __BSD_VISIBLE /* XXX nonstandard */ 140 #define s6_addr8 __u6_addr.__u6_addr8 141 #define s6_addr16 __u6_addr.__u6_addr16 142 #define s6_addr32 __u6_addr.__u6_addr32 143 #endif 144 145 #define INET6_ADDRSTRLEN 46 146 147 /* 148 * Socket address for IPv6 149 */ 150 #ifndef _XOPEN_SOURCE 151 #define SIN6_LEN 152 #endif 153 struct sockaddr_in6 { 154 uint8_t sin6_len; /* length of this struct(sa_family_t)*/ 155 sa_family_t sin6_family; /* AF_INET6 */ 156 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 157 uint32_t sin6_flowinfo; /* IP6 flow information */ 158 struct in6_addr sin6_addr; /* IP6 address */ 159 uint32_t sin6_scope_id; /* scope zone index */ 160 }; 161 162 /* 163 * Local definition for masks 164 */ 165 #ifdef _KERNEL /* XXX nonstandard */ 166 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 167 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 168 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 169 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 170 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 171 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 172 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 173 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 174 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 175 #endif 176 177 #ifdef _KERNEL 178 extern const struct sockaddr_in6 sa6_any; 179 180 extern const struct in6_addr in6mask0; 181 extern const struct in6_addr in6mask32; 182 extern const struct in6_addr in6mask64; 183 extern const struct in6_addr in6mask96; 184 extern const struct in6_addr in6mask128; 185 #endif /* _KERNEL */ 186 187 /* 188 * Macros started with IPV6_ADDR is KAME local 189 */ 190 #if BYTE_ORDER == BIG_ENDIAN 191 #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 192 #define _IPV6_ADDR_INT16_ULL 0xfe80 193 #define _IPV6_ADDR_INT16_USL 0xfec0 194 #else 195 #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff 196 #define _IPV6_ADDR_INT16_ULL 0x80fe 197 #define _IPV6_ADDR_INT16_USL 0xc0fe 198 #endif 199 200 #ifdef _KERNEL /* XXX nonstandard */ 201 #if BYTE_ORDER == BIG_ENDIAN 202 #define IPV6_ADDR_INT32_ONE 1 203 #define IPV6_ADDR_INT32_TWO 2 204 #define IPV6_ADDR_INT32_MNL 0xff010000 205 #define IPV6_ADDR_INT32_MLL 0xff020000 206 #define IPV6_ADDR_INT32_SMP 0x0000ffff 207 #define IPV6_ADDR_INT16_MLL 0xff02 208 #elif BYTE_ORDER == LITTLE_ENDIAN 209 #define IPV6_ADDR_INT32_ONE 0x01000000 210 #define IPV6_ADDR_INT32_TWO 0x02000000 211 #define IPV6_ADDR_INT32_MNL 0x000001ff 212 #define IPV6_ADDR_INT32_MLL 0x000002ff 213 #define IPV6_ADDR_INT32_SMP 0xffff0000 214 #define IPV6_ADDR_INT16_MLL 0x02ff 215 #endif 216 #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL 217 #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL 218 #endif 219 220 /* 221 * Definition of some useful macros to handle IP6 addresses 222 */ 223 #define IN6ADDR_ANY_INIT \ 224 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 225 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 226 #define IN6ADDR_LOOPBACK_INIT \ 227 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 228 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 229 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 230 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 231 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 232 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 233 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 234 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 235 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 236 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 237 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 238 239 #ifdef _KERNEL 240 extern const struct in6_addr kin6addr_any; 241 extern const struct in6_addr kin6addr_loopback; 242 extern const struct in6_addr kin6addr_nodelocal_allnodes; 243 extern const struct in6_addr kin6addr_linklocal_allnodes; 244 extern const struct in6_addr kin6addr_linklocal_allrouters; 245 #else 246 extern const struct in6_addr in6addr_any; 247 extern const struct in6_addr in6addr_loopback; 248 extern const struct in6_addr in6addr_nodelocal_allnodes; 249 extern const struct in6_addr in6addr_linklocal_allnodes; 250 #endif 251 252 #define IN6_ARE_ADDR_EQUAL(a, b) \ 253 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 254 255 #ifdef _KERNEL /* non standard */ 256 /* see if two addresses are equal in a scope-conscious manner. */ 257 #define SA6_ARE_ADDR_EQUAL(a, b) \ 258 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 259 (a)->sin6_scope_id == (b)->sin6_scope_id) && \ 260 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 261 #endif 262 263 /* 264 * Unspecified 265 */ 266 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 267 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 268 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) 269 270 /* 271 * Loopback 272 */ 273 #define IN6_IS_ADDR_LOOPBACK(a) \ 274 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 275 (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) 276 277 /* 278 * Mapped 279 */ 280 #define IN6_IS_ADDR_V4MAPPED(a) \ 281 ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ 282 (a)->_s6_addr32[2] == ntohl(0x0000ffff)) 283 284 /* 285 * IPv4 compatible. Deprecated by RFC4291. 286 */ 287 #define IN6_IS_ADDR_V4COMPAT(a) \ 288 ((a)->_s6_addr32[0] == 0 && \ 289 (a)->_s6_addr32[1] == 0 && \ 290 (a)->_s6_addr32[2] == 0 && \ 291 (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) 292 293 /* 294 * KAME Scope Values 295 */ 296 297 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 298 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 299 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 300 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 301 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 302 303 #ifdef _KERNEL /* XXX nonstandard */ 304 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 305 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 306 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 307 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 308 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 309 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 310 #endif 311 312 /* 313 * Unicast Scope 314 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 315 */ 316 #define IN6_IS_ADDR_LINKLOCAL(a) \ 317 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) 318 #define IN6_IS_ADDR_SITELOCAL(a) \ 319 (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) 320 321 /* 322 * Multicast 323 */ 324 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 325 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 326 #ifdef _KERNEL /* XXX nonstandard */ 327 #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) 328 #endif 329 330 /* 331 * Multicast Scope 332 */ 333 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 336 337 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 340 341 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 342 (IN6_IS_ADDR_MULTICAST(a) && \ 343 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 344 345 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 348 349 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 350 (IN6_IS_ADDR_MULTICAST(a) && \ 351 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 352 353 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 354 (IN6_IS_ADDR_MULTICAST(a) && \ 355 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 356 357 #ifdef _KERNEL /* nonstandard */ 358 /* 359 * KAME Scope 360 */ 361 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 362 (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) 363 #define IN6_IS_SCOPE_EMBED(a) \ 364 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 365 (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ 366 (IN6_IS_ADDR_MC_INTFACELOCAL(a))) 367 368 369 #define IFA6_IS_DEPRECATED(a) \ 370 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 371 (a)->ia6_lifetime.ia6t_preferred < time_uptime) 372 373 #define IFA6_IS_INVALID(a) \ 374 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 375 (a)->ia6_lifetime.ia6t_expire < time_uptime) 376 #endif 377 378 /* 379 * IP6 route structure 380 */ 381 #ifndef _XOPEN_SOURCE 382 struct route_in6 { 383 struct rtentry *ro_rt; 384 struct sockaddr_in6 ro_dst; 385 }; 386 #endif 387 388 /* 389 * Options for use with [gs]etsockopt at the IPV6 level. 390 * First word of comment is data type; bool is stored in int. 391 */ 392 /* no hdrincl */ 393 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 394 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 395 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 396 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 397 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 398 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 399 #endif 400 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 401 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 402 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 403 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 404 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 405 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 406 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 407 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 408 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 409 /* RFC2292 options */ 410 #ifdef _KERNEL 411 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 412 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 413 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 414 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 415 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 416 #define IPV6_2292RTHDR 24 /* bool; routing header */ 417 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 418 #endif 419 420 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 421 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 422 #ifndef _KERNEL 423 #define IPV6_BINDV6ONLY IPV6_V6ONLY 424 #endif 425 426 #if 1 /* IPSEC */ 427 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 428 #endif 429 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 430 431 #if 1 /* IPV6FIREWALL */ 432 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 433 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 434 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 435 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 436 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 437 #endif 438 439 /* 440 * new socket options introduced in RFC3542 441 */ 442 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 443 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 444 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 445 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 446 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 447 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 448 #ifdef _KERNEL 449 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 450 #endif 451 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 452 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 453 454 /* mtuinfo; get the current path MTU (sopt), 455 * 4 bytes int; MTU notification (cmsg) 456 */ 457 #define IPV6_PATHMTU 44 458 #if 0 /*obsoleted during 2292bis -> 3542*/ 459 #define IPV6_REACHCONF 45 /* no data; ND reachability confirm 460 (cmsg only/not in of RFC3542) */ 461 #endif 462 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 463 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 464 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 465 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 466 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 467 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 468 #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ 469 470 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 471 472 #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ 473 474 #define IPV6_TCLASS 61 /* int; send traffic class value */ 475 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 476 477 #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as 478 * the source address. 479 */ 480 /* 481 * The following option is private; do not use it from user applications. 482 * It is deliberately defined to the same value as IP_MSFILTER. 483 */ 484 #define IPV6_MSFILTER 74 /* struct __msfilterreq; 485 * set/get multicast source filter list. 486 */ 487 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 488 489 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 490 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 491 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 492 493 /* 494 * Defaults and limits for options 495 */ 496 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 497 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 498 499 /* 500 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 501 */ 502 struct ipv6_mreq { 503 struct in6_addr ipv6mr_multiaddr; 504 unsigned int ipv6mr_interface; 505 }; 506 507 /* 508 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 509 */ 510 struct in6_pktinfo { 511 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 512 unsigned int ipi6_ifindex; /* send/recv interface index */ 513 }; 514 515 /* 516 * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. 517 */ 518 struct ip6_mtuinfo { 519 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 520 uint32_t ip6m_mtu; 521 }; 522 523 /* 524 * Argument for IPV6_PORTRANGE: 525 * - which range to search when port is unspecified at bind() or connect() 526 */ 527 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 528 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 529 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 530 531 #ifndef _XOPEN_SOURCE 532 /* 533 * Definitions for inet6 sysctl operations. 534 * 535 * Third level is protocol number. 536 * Fourth level is desired variable within that protocol. 537 */ 538 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 539 540 #define CTL_IPV6PROTO_NAMES { \ 541 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 542 { 0, 0 }, \ 543 { "tcp6", CTLTYPE_NODE }, \ 544 { 0, 0 }, \ 545 { 0, 0 }, \ 546 { 0, 0 }, \ 547 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 548 { 0, 0 }, \ 549 { 0, 0 }, \ 550 { "udp6", CTLTYPE_NODE }, \ 551 { 0, 0 }, \ 552 { 0, 0 }, \ 553 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 554 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 555 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 556 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 557 { 0, 0 }, \ 558 { "ip6", CTLTYPE_NODE }, \ 559 { 0, 0 }, \ 560 { 0, 0 }, \ 561 { 0, 0 }, \ 562 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 563 { 0, 0 }, \ 564 { "ipsec6", CTLTYPE_NODE }, \ 565 { 0, 0 }, \ 566 { 0, 0 }, \ 567 { 0, 0 }, \ 568 { 0, 0 }, \ 569 { 0, 0 }, \ 570 { 0, 0 }, \ 571 { "icmp6", CTLTYPE_NODE }, \ 572 { 0, 0 }, \ 573 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 574 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 575 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 576 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 577 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 578 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 579 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 580 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 581 { 0, 0 }, \ 582 { 0, 0 }, \ 583 { 0, 0 }, \ 584 { "pim6", CTLTYPE_NODE }, \ 585 } 586 587 /* 588 * Names for IP sysctl objects 589 */ 590 #define IPV6CTL_FORWARDING 1 /* act as router */ 591 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 592 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 593 #ifdef notyet 594 #define IPV6CTL_DEFMTU 4 /* default MTU */ 595 #endif 596 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 597 #define IPV6CTL_STATS 6 /* stats */ 598 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 599 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 600 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 601 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 602 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 603 #define IPV6CTL_ACCEPT_RTADV 12 604 #define IPV6CTL_KEEPFAITH 13 605 #define IPV6CTL_LOG_INTERVAL 14 606 #define IPV6CTL_HDRNESTLIMIT 15 607 #define IPV6CTL_DAD_COUNT 16 608 #define IPV6CTL_AUTO_FLOWLABEL 17 609 #define IPV6CTL_DEFMCASTHLIM 18 610 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 611 #define IPV6CTL_KAME_VERSION 20 612 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 613 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 614 #if 0 /* obsolete */ 615 #define IPV6CTL_MAPPED_ADDR 23 616 #define IPV6CTL_V6ONLY 24 617 #endif 618 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 619 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 620 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 621 622 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 623 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 624 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 625 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 626 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 627 628 #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ 629 #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */ 630 631 /* New entries should be added here from current IPV6CTL_MAXID value. */ 632 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 633 634 #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 635 #define IPV6CTL_MAXID 48 636 #endif /* !_XOPEN_SOURCE */ 637 638 /* 639 * Redefinition of mbuf flags 640 */ 641 #define M_AUTHIPHDR M_PROTO2 642 #define M_DECRYPTED M_PROTO3 643 #define M_LOOP M_PROTO4 644 #define M_AUTHIPDGM M_PROTO5 645 646 #ifdef _KERNEL 647 648 struct ifnet; 649 struct mbuf; 650 struct sockaddr; 651 struct sockaddr_in; 652 struct sockaddr_in6; 653 654 int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); 655 int in6_localaddr (struct in6_addr *); 656 int in6_addrscope (struct in6_addr *); 657 struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *); 658 struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); 659 void in6_if_up (struct ifnet *); 660 661 void addrsel_policy_init (void); 662 663 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 664 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 665 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 666 667 extern int (*faithprefix_p)(struct in6_addr *); 668 #endif /* _KERNEL */ 669 670 #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ 671 672 __BEGIN_DECLS 673 struct cmsghdr; 674 675 uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 676 int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); 677 int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 678 int inet6_option_init (void *, struct cmsghdr **, int); 679 int inet6_option_next (const struct cmsghdr *, uint8_t **); 680 int inet6_option_space (int); 681 682 int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); 683 int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); 684 int inet6_opt_finish (void *, socklen_t, int); 685 int inet6_opt_get_val (void *, int, void *, socklen_t); 686 int inet6_opt_init (void *, socklen_t); 687 int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); 688 int inet6_opt_set_val (void *, int, void *, socklen_t); 689 690 int inet6_rth_add (void *, const struct in6_addr *); 691 struct in6_addr *inet6_rth_getaddr (const void *, int); 692 void *inet6_rth_init (void *, socklen_t, int, int); 693 int inet6_rth_reverse (const void *, void *); 694 int inet6_rth_segments (const void *); 695 socklen_t inet6_rth_space (int, int); 696 697 int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 698 unsigned int); 699 struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 700 int inet6_rthdr_getflags (const struct cmsghdr *, int); 701 struct cmsghdr *inet6_rthdr_init (void *, int); 702 int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 703 #if 0 /* not implemented yet */ 704 int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 705 #endif 706 int inet6_rthdr_segments (const struct cmsghdr *); 707 size_t inet6_rthdr_space (int, int); 708 __END_DECLS 709 710 #endif /* !_NETINET6_IN6_H_ */ 711