1 /* $OpenBSD: in6.h,v 1.31 2003/06/02 23:28:15 millert Exp $ */ 2 /* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei 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 "OpenBSD-current" 78 79 /* 80 * Local port number conventions: 81 * 82 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 83 * unless a kernel is compiled with IPNOPRIVPORTS defined. 84 * 85 * When a user does a bind(2) or connect(2) with a port number of zero, 86 * a non-conflicting local port address is chosen. 87 * 88 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 89 * that is settable by sysctl(3); net.inet.ip.anonportmin and 90 * net.inet.ip.anonportmax respectively. 91 * 92 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 93 * default assignment range. 94 * 95 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 96 * 97 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 98 * and exists only for FreeBSD compatibility purposes. 99 * 100 * The value IP_PORTRANGE_LOW changes the range to the "low" are 101 * that is (by convention) restricted to privileged processes. 102 * This convention is based on "vouchsafe" principles only. 103 * It is only secure if you trust the remote host to restrict these ports. 104 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 105 */ 106 107 #define IPV6PORT_RESERVED 1024 108 #define IPV6PORT_ANONMIN 49152 109 #define IPV6PORT_ANONMAX 65535 110 #define IPV6PORT_RESERVEDMIN 600 111 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 112 113 /* 114 * IPv6 address 115 */ 116 struct in6_addr { 117 union { 118 u_int8_t __u6_addr8[16]; 119 u_int16_t __u6_addr16[8]; 120 u_int32_t __u6_addr32[4]; 121 } __u6_addr; /* 128-bit IP6 address */ 122 }; 123 124 #define s6_addr __u6_addr.__u6_addr8 125 #ifdef _KERNEL /* XXX nonstandard */ 126 #define s6_addr8 __u6_addr.__u6_addr8 127 #define s6_addr16 __u6_addr.__u6_addr16 128 #define s6_addr32 __u6_addr.__u6_addr32 129 #endif 130 131 #define INET6_ADDRSTRLEN 46 132 133 /* 134 * Socket address for IPv6 135 */ 136 #ifndef _XOPEN_SOURCE 137 #define SIN6_LEN 138 #endif 139 struct sockaddr_in6 { 140 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 141 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 142 in_port_t sin6_port; /* Transport layer port # (in_port_t)*/ 143 u_int32_t sin6_flowinfo; /* IP6 flow information */ 144 struct in6_addr sin6_addr; /* IP6 address */ 145 u_int32_t sin6_scope_id; /* intface scope id */ 146 }; 147 148 /* 149 * Local definition for masks 150 */ 151 #ifdef _KERNEL /* XXX nonstandard */ 152 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 153 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 154 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 155 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 156 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 157 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 158 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 159 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 160 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 161 #endif 162 163 #ifdef _KERNEL 164 extern const struct sockaddr_in6 sa6_any; 165 166 extern const struct in6_addr in6mask0; 167 extern const struct in6_addr in6mask32; 168 extern const struct in6_addr in6mask64; 169 extern const struct in6_addr in6mask96; 170 extern const struct in6_addr in6mask128; 171 #endif /* _KERNEL */ 172 173 /* 174 * Macros started with IPV6_ADDR is KAME local 175 */ 176 #ifdef _KERNEL /* XXX nonstandard */ 177 #if BYTE_ORDER == BIG_ENDIAN 178 #define IPV6_ADDR_INT32_ONE 1 179 #define IPV6_ADDR_INT32_TWO 2 180 #define IPV6_ADDR_INT32_MNL 0xff010000 181 #define IPV6_ADDR_INT32_MLL 0xff020000 182 #define IPV6_ADDR_INT32_SMP 0x0000ffff 183 #define IPV6_ADDR_INT16_ULL 0xfe80 184 #define IPV6_ADDR_INT16_USL 0xfec0 185 #define IPV6_ADDR_INT16_MLL 0xff02 186 #elif BYTE_ORDER == LITTLE_ENDIAN 187 #define IPV6_ADDR_INT32_ONE 0x01000000 188 #define IPV6_ADDR_INT32_TWO 0x02000000 189 #define IPV6_ADDR_INT32_MNL 0x000001ff 190 #define IPV6_ADDR_INT32_MLL 0x000002ff 191 #define IPV6_ADDR_INT32_SMP 0xffff0000 192 #define IPV6_ADDR_INT16_ULL 0x80fe 193 #define IPV6_ADDR_INT16_USL 0xc0fe 194 #define IPV6_ADDR_INT16_MLL 0x02ff 195 #endif 196 #endif 197 198 /* 199 * Definition of some useful macros to handle IP6 addresses 200 */ 201 #define IN6ADDR_ANY_INIT \ 202 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 204 #define IN6ADDR_LOOPBACK_INIT \ 205 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 207 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 208 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 209 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 210 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 211 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 213 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 214 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 215 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 216 217 extern const struct in6_addr in6addr_any; 218 extern const struct in6_addr in6addr_loopback; 219 extern const struct in6_addr in6addr_nodelocal_allnodes; 220 extern const struct in6_addr in6addr_linklocal_allnodes; 221 extern const struct in6_addr in6addr_linklocal_allrouters; 222 223 /* 224 * Equality 225 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 226 * does not supply memcmp(). For userland memcmp() is preferred as it is 227 * in ANSI standard. 228 */ 229 #ifdef _KERNEL 230 #define IN6_ARE_ADDR_EQUAL(a, b) \ 231 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 232 #else 233 #define IN6_ARE_ADDR_EQUAL(a, b) \ 234 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 235 #endif 236 237 /* 238 * Unspecified 239 */ 240 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 241 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 242 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 243 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 244 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 245 246 /* 247 * Loopback 248 */ 249 #define IN6_IS_ADDR_LOOPBACK(a) \ 250 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 251 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 252 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 253 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 254 255 /* 256 * IPv4 compatible 257 */ 258 #define IN6_IS_ADDR_V4COMPAT(a) \ 259 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 260 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 261 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 262 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 263 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 264 265 /* 266 * Mapped 267 */ 268 #define IN6_IS_ADDR_V4MAPPED(a) \ 269 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 270 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 271 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 272 273 /* 274 * KAME Scope Values 275 */ 276 277 #ifdef _KERNEL /* XXX nonstandard */ 278 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 279 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 280 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 281 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 282 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 283 #else 284 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 285 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 286 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 287 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 288 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 289 #endif 290 291 /* 292 * Unicast Scope 293 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 294 */ 295 #define IN6_IS_ADDR_LINKLOCAL(a) \ 296 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 297 #define IN6_IS_ADDR_SITELOCAL(a) \ 298 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 299 300 /* 301 * Multicast 302 */ 303 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 304 305 #ifdef _KERNEL /* XXX nonstandard */ 306 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 307 #else 308 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 309 #endif 310 311 /* 312 * Multicast Scope 313 */ 314 #ifdef _KERNEL /* refers nonstandard items */ 315 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 316 (IN6_IS_ADDR_MULTICAST(a) && \ 317 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 318 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 319 (IN6_IS_ADDR_MULTICAST(a) && \ 320 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 321 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 322 (IN6_IS_ADDR_MULTICAST(a) && \ 323 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 324 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 325 (IN6_IS_ADDR_MULTICAST(a) && \ 326 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 327 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 330 #else 331 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 332 (IN6_IS_ADDR_MULTICAST(a) && \ 333 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 334 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 337 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 340 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 343 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 346 #endif 347 348 #ifdef _KERNEL /* nonstandard */ 349 /* 350 * KAME Scope 351 */ 352 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 353 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 354 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 355 356 #define IFA6_IS_DEPRECATED(a) \ 357 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 358 (u_int32_t)((time.tv_sec - (a)->ia6_updatetime)) > \ 359 (a)->ia6_lifetime.ia6t_pltime) 360 #define IFA6_IS_INVALID(a) \ 361 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 362 (u_int32_t)((time.tv_sec - (a)->ia6_updatetime)) > \ 363 (a)->ia6_lifetime.ia6t_vltime) 364 #endif 365 366 /* 367 * IP6 route structure 368 */ 369 #ifndef _XOPEN_SOURCE 370 struct route_in6 { 371 struct rtentry *ro_rt; 372 struct sockaddr_in6 ro_dst; 373 }; 374 #endif 375 376 /* 377 * Options for use with [gs]etsockopt at the IPV6 level. 378 * First word of comment is data type; bool is stored in int. 379 */ 380 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 381 /* no hdrincl */ 382 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 383 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 384 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 385 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 386 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 387 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 388 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 389 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 390 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 391 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 392 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 393 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 394 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 395 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 396 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 397 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 398 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 399 #define IPV6_DSTOPTS 23 /* bool; destination option */ 400 #define IPV6_RTHDR 24 /* bool; routing header */ 401 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 402 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 403 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 404 405 #if 0 /*KAME IPSEC*/ 406 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 407 #endif 408 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 409 410 /* 30-52, 57-59: reserved */ 411 #define IPV6_AUTH_LEVEL 53 /* int; authentication used */ 412 #define IPV6_ESP_TRANS_LEVEL 54 /* int; transport encryption */ 413 #define IPV6_ESP_NETWORK_LEVEL 55 /* int; full-packet encryption */ 414 #define IPSEC6_OUTSA 56 /* set the outbound SA for a socket */ 415 #define IPV6_IPCOMP_LEVEL 60 /* int; compression */ 416 417 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 418 419 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 420 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 421 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 422 423 /* 424 * Defaults and limits for options 425 */ 426 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 427 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 428 429 /* 430 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 431 */ 432 struct ipv6_mreq { 433 struct in6_addr ipv6mr_multiaddr; 434 unsigned int ipv6mr_interface; 435 }; 436 437 /* 438 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 439 */ 440 struct in6_pktinfo { 441 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 442 unsigned int ipi6_ifindex; /* send/recv interface index */ 443 }; 444 445 /* 446 * Argument for IPV6_PORTRANGE: 447 * - which range to search when port is unspecified at bind() or connect() 448 */ 449 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 450 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 451 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 452 453 #ifndef _XOPEN_SOURCE 454 /* 455 * Definitions for inet6 sysctl operations. 456 * 457 * Third level is protocol number. 458 * Fourth level is desired variable within that protocol. 459 */ 460 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 461 462 #define CTL_IPV6PROTO_NAMES { \ 463 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 464 { 0, 0 }, \ 465 { "tcp6", CTLTYPE_NODE }, \ 466 { 0, 0 }, \ 467 { 0, 0 }, \ 468 { 0, 0 }, \ 469 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 470 { 0, 0 }, \ 471 { 0, 0 }, \ 472 { "udp6", CTLTYPE_NODE }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, \ 475 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 476 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 477 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 478 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 479 { 0, 0 }, \ 480 { "ip6", CTLTYPE_NODE }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 485 { 0, 0 }, \ 486 { "ipsec6", CTLTYPE_NODE }, \ 487 { 0, 0 }, \ 488 { 0, 0 }, \ 489 { 0, 0 }, \ 490 { 0, 0 }, \ 491 { 0, 0 }, \ 492 { 0, 0 }, \ 493 { "icmp6", CTLTYPE_NODE }, \ 494 { 0, 0 }, \ 495 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 496 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 497 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 498 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 499 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 500 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 501 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 502 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 503 { 0, 0 }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { "pim6", CTLTYPE_NODE }, \ 507 } 508 509 /* 510 * Names for IP sysctl objects 511 */ 512 #define IPV6CTL_FORWARDING 1 /* act as router */ 513 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 514 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 515 #ifdef notyet 516 #define IPV6CTL_DEFMTU 4 /* default MTU */ 517 #endif 518 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 519 #define IPV6CTL_STATS 6 /* stats */ 520 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 521 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 522 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 523 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 524 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 525 #define IPV6CTL_ACCEPT_RTADV 12 526 #define IPV6CTL_KEEPFAITH 13 527 #define IPV6CTL_LOG_INTERVAL 14 528 #define IPV6CTL_HDRNESTLIMIT 15 529 #define IPV6CTL_DAD_COUNT 16 530 #define IPV6CTL_AUTO_FLOWLABEL 17 531 #define IPV6CTL_DEFMCASTHLIM 18 532 #ifdef notdef /* obsolete */ 533 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 534 #endif 535 #define IPV6CTL_KAME_VERSION 20 536 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 537 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 538 /*#define IPV6CTL_MAPPED_ADDR 23 not for openbsd */ 539 #define IPV6CTL_V6ONLY 24 540 /* 25 to 40: resrved */ 541 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 542 /* New entries should be added here from current IPV6CTL_MAXID value. */ 543 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 544 #define IPV6CTL_MAXID 42 545 546 #define IPV6CTL_NAMES { \ 547 { 0, 0 }, \ 548 { "forwarding", CTLTYPE_INT }, \ 549 { "redirect", CTLTYPE_INT }, \ 550 { "hlim", CTLTYPE_INT }, \ 551 { "mtu", CTLTYPE_INT }, \ 552 { "forwsrcrt", CTLTYPE_INT }, \ 553 { 0, 0 }, \ 554 { 0, 0 }, \ 555 { "mrtproto", CTLTYPE_INT }, \ 556 { "maxfragpackets", CTLTYPE_INT }, \ 557 { "sourcecheck", CTLTYPE_INT }, \ 558 { "sourcecheck_logint", CTLTYPE_INT }, \ 559 { "accept_rtadv", CTLTYPE_INT }, \ 560 { "keepfaith", CTLTYPE_INT }, \ 561 { "log_interval", CTLTYPE_INT }, \ 562 { "hdrnestlimit", CTLTYPE_INT }, \ 563 { "dad_count", CTLTYPE_INT }, \ 564 { "auto_flowlabel", CTLTYPE_INT }, \ 565 { "defmcasthlim", CTLTYPE_INT }, \ 566 { 0, 0 }, \ 567 { "kame_version", CTLTYPE_STRING }, \ 568 { "use_deprecated", CTLTYPE_INT }, \ 569 { "rr_prune", CTLTYPE_INT }, \ 570 { 0, 0 }, \ 571 { "v6only", CTLTYPE_INT }, \ 572 { 0, 0 }, \ 573 { 0, 0 }, \ 574 { 0, 0 }, \ 575 { 0, 0 }, \ 576 { 0, 0 }, \ 577 { 0, 0 }, \ 578 { 0, 0 }, \ 579 { 0, 0 }, \ 580 { 0, 0 }, \ 581 { 0, 0 }, \ 582 { 0, 0 }, \ 583 { 0, 0 }, \ 584 { 0, 0 }, \ 585 { 0, 0 }, \ 586 { 0, 0 }, \ 587 { 0, 0 }, \ 588 { "maxfrags", CTLTYPE_INT }, \ 589 } 590 591 #endif /* !_XOPEN_SOURCE */ 592 593 #ifdef _KERNEL 594 struct cmsghdr; 595 596 int in6_cksum(struct mbuf *, u_int8_t, u_int32_t, u_int32_t); 597 int in6_localaddr(struct in6_addr *); 598 int in6_addrscope(struct in6_addr *); 599 struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *); 600 struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *); 601 extern void in6_if_up(struct ifnet *); 602 603 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 604 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 605 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 606 #endif /* _KERNEL */ 607 608 __BEGIN_DECLS 609 struct cmsghdr; 610 611 extern int inet6_option_space(int); 612 extern int inet6_option_init(void *, struct cmsghdr **, int); 613 extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, 614 int, int); 615 extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 616 extern int inet6_option_next(const struct cmsghdr *, u_int8_t **); 617 extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int); 618 619 extern size_t inet6_rthdr_space(int, int); 620 extern struct cmsghdr *inet6_rthdr_init(void *, int); 621 extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *, 622 unsigned int); 623 extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int); 624 #if 0 /* not implemented yet */ 625 extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *); 626 #endif 627 extern int inet6_rthdr_segments(const struct cmsghdr *); 628 extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int); 629 extern int inet6_rthdr_getflags(const struct cmsghdr *, int); 630 __END_DECLS 631 632 #endif /* !_NETINET6_IN6_H_ */ 633