in6.h revision 1.21
1 /* $NetBSD: in6.h,v 1.21 2000/10/17 21:46:42 itojun Exp $ */ 2 /* $KAME: in6.h,v 1.57 2000/08/26 10:00:45 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" 70 #endif 71 72 #ifndef _NETINET6_IN6_H_ 73 #define _NETINET6_IN6_H_ 74 75 /* 76 * Identification of the network protocol stack 77 */ 78 #define __KAME__ 79 #define __KAME_VERSION "19991213/NetBSD-current" 80 81 /* 82 * Local port number conventions: 83 * 84 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 85 * unless a kernel is compiled with IPNOPRIVPORTS defined. 86 * 87 * When a user does a bind(2) or connect(2) with a port number of zero, 88 * a non-conflicting local port address is chosen. 89 * 90 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 91 * that is settable by sysctl(3); net.inet.ip.anonportmin and 92 * net.inet.ip.anonportmax respectively. 93 * 94 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 95 * default assignment range. 96 * 97 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 98 * 99 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 100 * and exists only for FreeBSD compatibility purposes. 101 * 102 * The value IP_PORTRANGE_LOW changes the range to the "low" are 103 * that is (by convention) restricted to privileged processes. 104 * This convention is based on "vouchsafe" principles only. 105 * It is only secure if you trust the remote host to restrict these ports. 106 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 107 */ 108 109 #define IPV6PORT_RESERVED 1024 110 #define IPV6PORT_ANONMIN 49152 111 #define IPV6PORT_ANONMAX 65535 112 #define IPV6PORT_RESERVEDMIN 600 113 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 114 115 /* 116 * IPv6 address 117 */ 118 struct in6_addr { 119 union { 120 u_int8_t __u6_addr8[16]; 121 u_int16_t __u6_addr16[8]; 122 u_int32_t __u6_addr32[4]; 123 } __u6_addr; /* 128-bit IP6 address */ 124 }; 125 126 #define s6_addr __u6_addr.__u6_addr8 127 #ifdef _KERNEL /*XXX nonstandard*/ 128 #define s6_addr8 __u6_addr.__u6_addr8 129 #define s6_addr16 __u6_addr.__u6_addr16 130 #define s6_addr32 __u6_addr.__u6_addr32 131 #endif 132 133 #define INET6_ADDRSTRLEN 46 134 135 /* 136 * Socket address for IPv6 137 */ 138 #ifndef _XOPEN_SOURCE 139 #define SIN6_LEN 140 #endif 141 struct sockaddr_in6 { 142 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 143 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 144 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 145 u_int32_t sin6_flowinfo; /* IP6 flow information */ 146 struct in6_addr sin6_addr; /* IP6 address */ 147 u_int32_t sin6_scope_id; /* intface scope id */ 148 }; 149 150 /* 151 * Local definition for masks 152 */ 153 #ifdef _KERNEL /*XXX nonstandard*/ 154 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 155 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 156 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 157 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 158 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 159 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 160 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 161 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 163 #endif 164 165 #ifdef _KERNEL 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 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 242 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 243 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 244 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) == 0)) 245 246 /* 247 * Loopback 248 */ 249 #define IN6_IS_ADDR_LOOPBACK(a) \ 250 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 251 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 252 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 253 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) == ntohl(1))) 254 255 /* 256 * IPv4 compatible 257 */ 258 #define IN6_IS_ADDR_V4COMPAT(a) \ 259 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 260 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 261 (*(u_int32_t *)(void *)(&(a)->s6_addr[8]) == 0) && \ 262 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) != 0) && \ 263 (*(u_int32_t *)(void *)(&(a)->s6_addr[12]) != ntohl(1))) 264 265 /* 266 * Mapped 267 */ 268 #define IN6_IS_ADDR_V4MAPPED(a) \ 269 ((*(u_int32_t *)(void *)(&(a)->s6_addr[0]) == 0) && \ 270 (*(u_int32_t *)(void *)(&(a)->s6_addr[4]) == 0) && \ 271 (*(u_int32_t *)(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 /* 349 * Wildcard Socket 350 */ 351 #if 0 /*pre-RFC2553*/ 352 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 353 #endif 354 355 /* 356 * KAME Scope 357 */ 358 #ifdef _KERNEL /*nonstandard*/ 359 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 360 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 361 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 362 #endif 363 364 /* 365 * IP6 route structure 366 */ 367 #ifndef _XOPEN_SOURCE 368 struct route_in6 { 369 struct rtentry *ro_rt; 370 struct sockaddr_in6 ro_dst; 371 }; 372 #endif 373 374 /* 375 * Options for use with [gs]etsockopt at the IPV6 level. 376 * First word of comment is data type; bool is stored in int. 377 */ 378 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 379 /* no hdrincl */ 380 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 381 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 382 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 383 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 384 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 385 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 386 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 387 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 388 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 389 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 390 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 391 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 392 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 393 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 394 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 395 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 396 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 397 #define IPV6_DSTOPTS 23 /* bool; destination option */ 398 #define IPV6_RTHDR 24 /* bool; routing header */ 399 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 400 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 401 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 402 403 #if 1 /*IPSEC*/ 404 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 405 #endif 406 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 407 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 408 409 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 410 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 411 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 412 413 /* 414 * Defaults and limits for options 415 */ 416 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 417 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 418 419 /* 420 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 421 */ 422 struct ipv6_mreq { 423 struct in6_addr ipv6mr_multiaddr; 424 unsigned int ipv6mr_interface; 425 }; 426 427 /* 428 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 429 */ 430 struct in6_pktinfo { 431 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 432 unsigned int ipi6_ifindex; /* send/recv interface index */ 433 }; 434 435 /* 436 * Argument for IPV6_PORTRANGE: 437 * - which range to search when port is unspecified at bind() or connect() 438 */ 439 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 440 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 441 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 442 443 #ifndef _XOPEN_SOURCE 444 /* 445 * Definitions for inet6 sysctl operations. 446 * 447 * Third level is protocol number. 448 * Fourth level is desired variable within that protocol. 449 */ 450 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 451 452 #define CTL_IPV6PROTO_NAMES { \ 453 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 454 { 0, 0 }, \ 455 { "tcp6", CTLTYPE_NODE }, \ 456 { 0, 0 }, \ 457 { 0, 0 }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { "udp6", CTLTYPE_NODE }, \ 463 { 0, 0 }, \ 464 { 0, 0 }, \ 465 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 466 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 467 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 468 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 469 { 0, 0 }, \ 470 { "ip6", CTLTYPE_NODE }, \ 471 { 0, 0 }, \ 472 { 0, 0 }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 475 { 0, 0 }, \ 476 { "ipsec6", CTLTYPE_NODE }, \ 477 { 0, 0 }, \ 478 { 0, 0 }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { "icmp6", CTLTYPE_NODE }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 486 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 487 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 488 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 489 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 490 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 491 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 492 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 493 { 0, 0 }, \ 494 { 0, 0 }, \ 495 { 0, 0 }, \ 496 { "pim6", CTLTYPE_NODE }, \ 497 } 498 499 /* 500 * Names for IP sysctl objects 501 */ 502 #define IPV6CTL_FORWARDING 1 /* act as router */ 503 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 504 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 505 #ifdef notyet 506 #define IPV6CTL_DEFMTU 4 /* default MTU */ 507 #endif 508 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 509 #define IPV6CTL_STATS 6 /* stats */ 510 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 511 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 512 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 513 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 514 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 515 #define IPV6CTL_ACCEPT_RTADV 12 516 #define IPV6CTL_KEEPFAITH 13 517 #define IPV6CTL_LOG_INTERVAL 14 518 #define IPV6CTL_HDRNESTLIMIT 15 519 #define IPV6CTL_DAD_COUNT 16 520 #define IPV6CTL_AUTO_FLOWLABEL 17 521 #define IPV6CTL_DEFMCASTHLIM 18 522 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 523 #define IPV6CTL_KAME_VERSION 20 524 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 525 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 526 #define IPV6CTL_BINDV6ONLY 24 527 /* 25 to 27: reserved */ 528 #define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */ 529 #define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */ 530 #define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */ 531 #define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */ 532 /* New entries should be added here from current IPV6CTL_MAXID value. */ 533 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 534 #define IPV6CTL_MAXID 32 535 536 #define IPV6CTL_NAMES { \ 537 { 0, 0 }, \ 538 { "forwarding", CTLTYPE_INT }, \ 539 { "redirect", CTLTYPE_INT }, \ 540 { "hlim", CTLTYPE_INT }, \ 541 { "mtu", CTLTYPE_INT }, \ 542 { "forwsrcrt", CTLTYPE_INT }, \ 543 { 0, 0 }, \ 544 { 0, 0 }, \ 545 { "mrtproto", CTLTYPE_INT }, \ 546 { "maxfragpackets", CTLTYPE_INT }, \ 547 { "sourcecheck", CTLTYPE_INT }, \ 548 { "sourcecheck_logint", CTLTYPE_INT }, \ 549 { "accept_rtadv", CTLTYPE_INT }, \ 550 { "keepfaith", CTLTYPE_INT }, \ 551 { "log_interval", CTLTYPE_INT }, \ 552 { "hdrnestlimit", CTLTYPE_INT }, \ 553 { "dad_count", CTLTYPE_INT }, \ 554 { "auto_flowlabel", CTLTYPE_INT }, \ 555 { "defmcasthlim", CTLTYPE_INT }, \ 556 { "gifhlim", CTLTYPE_INT }, \ 557 { "kame_version", CTLTYPE_STRING }, \ 558 { "use_deprecated", CTLTYPE_INT }, \ 559 { "rr_prune", CTLTYPE_INT }, \ 560 { 0, 0 }, \ 561 { "bindv6only", CTLTYPE_INT }, \ 562 { 0, 0 }, \ 563 { 0, 0 }, \ 564 { 0, 0 }, \ 565 { "anonportmin", CTLTYPE_INT }, \ 566 { "anonportmax", CTLTYPE_INT }, \ 567 { "lowportmin", CTLTYPE_INT }, \ 568 { "lowportmax", CTLTYPE_INT }, \ 569 } 570 571 #endif /* !_XOPEN_SOURCE */ 572 573 #ifdef _KERNEL 574 struct cmsghdr; 575 576 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 577 int in6_localaddr __P((struct in6_addr *)); 578 int in6_addrscope __P((struct in6_addr *)); 579 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 580 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 581 extern void in6_if_up __P((struct ifnet *)); 582 extern u_char ip6_protox[]; 583 584 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 585 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 586 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 587 #endif /* _KERNEL */ 588 589 __BEGIN_DECLS 590 struct cmsghdr; 591 592 extern int inet6_option_space __P((int)); 593 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 594 extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 595 int, int)); 596 extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 597 extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 598 extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, int)); 599 600 extern size_t inet6_rthdr_space __P((int, int)); 601 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 602 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 603 unsigned int)); 604 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 605 #if 0 /* not implemented yet */ 606 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 607 #endif 608 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 609 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 610 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 611 __END_DECLS 612 613 #endif /* !_NETINET6_IN6_H_ */ 614
Indexes created Fri Sep 26 08:10:20 GMT 2025