in6.h revision 1.10
1 /* $NetBSD: in6.h,v 1.10 2000/02/09 00:54:56 itojun Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1982, 1986, 1990, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)in.h 8.3 (Berkeley) 1/3/94 65 */ 66 67 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 68 #error "do not include netinet6/in6.h directly, include netinet/in.h" 69 #endif 70 71 #ifndef _NETINET6_IN6_H_ 72 #define _NETINET6_IN6_H_ 73 74 #ifndef _XOPEN_SOURCE 75 #include <sys/queue.h> 76 #endif 77 78 /* 79 * Identification of the network protocol stack 80 */ 81 #define __KAME__ 82 #define __KAME_VERSION "19991213/NetBSD-current" 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_ANONMIX 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 struct in6_addr { 122 union { 123 u_int8_t __u6_addr8[16]; 124 u_int16_t __u6_addr16[8]; 125 u_int32_t __u6_addr32[4]; 126 } __u6_addr; /* 128-bit IP6 address */ 127 }; 128 129 #define s6_addr __u6_addr.__u6_addr8 130 #ifdef _KERNEL /*XXX nonstandard*/ 131 #define s6_addr8 __u6_addr.__u6_addr8 132 #define s6_addr16 __u6_addr.__u6_addr16 133 #define s6_addr32 __u6_addr.__u6_addr32 134 #endif 135 136 #define INET6_ADDRSTRLEN 46 137 138 /* 139 * Socket address for IPv6 140 */ 141 #ifndef _XOPEN_SOURCE 142 #define SIN6_LEN 143 #endif 144 struct sockaddr_in6 { 145 u_char sin6_len; /* length of this struct(sa_family_t)*/ 146 u_char sin6_family; /* AF_INET6 (sa_family_t) */ 147 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 148 u_int32_t sin6_flowinfo; /* IP6 flow information */ 149 struct in6_addr sin6_addr; /* IP6 address */ 150 u_int32_t sin6_scope_id; /* intface scope id */ 151 }; 152 153 /* 154 * Local definition for masks 155 */ 156 #ifdef _KERNEL /*XXX nonstandard*/ 157 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 158 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 159 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 160 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 161 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 162 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 163 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 164 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 165 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 166 #endif 167 168 #ifdef _KERNEL 169 extern const struct in6_addr in6mask0; 170 extern const struct in6_addr in6mask32; 171 extern const struct in6_addr in6mask64; 172 extern const struct in6_addr in6mask96; 173 extern const struct in6_addr in6mask128; 174 #endif /* _KERNEL */ 175 176 /* 177 * Macros started with IPV6_ADDR is KAME local 178 */ 179 #ifdef _KERNEL /*XXX nonstandard*/ 180 #if BYTE_ORDER == BIG_ENDIAN 181 #define IPV6_ADDR_INT32_ONE 1 182 #define IPV6_ADDR_INT32_TWO 2 183 #define IPV6_ADDR_INT32_MNL 0xff010000 184 #define IPV6_ADDR_INT32_MLL 0xff020000 185 #define IPV6_ADDR_INT32_SMP 0x0000ffff 186 #define IPV6_ADDR_INT16_ULL 0xfe80 187 #define IPV6_ADDR_INT16_USL 0xfec0 188 #define IPV6_ADDR_INT16_MLL 0xff02 189 #elif BYTE_ORDER == LITTLE_ENDIAN 190 #define IPV6_ADDR_INT32_ONE 0x01000000 191 #define IPV6_ADDR_INT32_TWO 0x02000000 192 #define IPV6_ADDR_INT32_MNL 0x000001ff 193 #define IPV6_ADDR_INT32_MLL 0x000002ff 194 #define IPV6_ADDR_INT32_SMP 0xffff0000 195 #define IPV6_ADDR_INT16_ULL 0x80fe 196 #define IPV6_ADDR_INT16_USL 0xc0fe 197 #define IPV6_ADDR_INT16_MLL 0x02ff 198 #endif 199 #endif 200 201 /* 202 * Definition of some useful macros to handle IP6 addresses 203 */ 204 #define IN6ADDR_ANY_INIT \ 205 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 207 #define IN6ADDR_LOOPBACK_INIT \ 208 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 209 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 210 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 211 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 213 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 214 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 215 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 216 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 217 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 219 220 extern const struct in6_addr in6addr_any; 221 extern const struct in6_addr in6addr_loopback; 222 extern const struct in6_addr in6addr_nodelocal_allnodes; 223 extern const struct in6_addr in6addr_linklocal_allnodes; 224 extern const struct in6_addr in6addr_linklocal_allrouters; 225 226 /* 227 * Equality 228 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 229 * does not supply memcmp(). For userland memcmp() is preferred as it is 230 * in ANSI standard. 231 */ 232 #ifdef _KERNEL 233 #define IN6_ARE_ADDR_EQUAL(a, b) \ 234 (bcmp((a), (b), sizeof(struct in6_addr)) == 0) 235 #else 236 #define IN6_ARE_ADDR_EQUAL(a, b) \ 237 (memcmp((a), (b), sizeof(struct in6_addr)) == 0) 238 #endif 239 240 /* 241 * Unspecified 242 */ 243 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 244 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 245 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 246 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 247 (*(u_int32_t *)(&(a)->s6_addr[12]) == 0)) 248 249 /* 250 * Loopback 251 */ 252 #define IN6_IS_ADDR_LOOPBACK(a) \ 253 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 254 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 255 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 256 (*(u_int32_t *)(&(a)->s6_addr[12]) == ntohl(1))) 257 258 /* 259 * IPv4 compatible 260 */ 261 #define IN6_IS_ADDR_V4COMPAT(a) \ 262 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 263 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 264 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 265 (*(u_int32_t *)(&(a)->s6_addr[12]) != 0) && \ 266 (*(u_int32_t *)(&(a)->s6_addr[12]) != ntohl(1))) 267 268 /* 269 * Mapped 270 */ 271 #define IN6_IS_ADDR_V4MAPPED(a) \ 272 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 273 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 274 (*(u_int32_t *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 275 276 /* 277 * KAME Scope Values 278 */ 279 280 #ifdef _KERNEL /*XXX nonstandard*/ 281 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 282 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 283 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 284 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 285 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 286 #else 287 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 288 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 289 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 290 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 291 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 292 #endif 293 294 /* 295 * Unicast Scope 296 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 297 */ 298 #define IN6_IS_ADDR_LINKLOCAL(a) \ 299 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 300 #define IN6_IS_ADDR_SITELOCAL(a) \ 301 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 302 303 /* 304 * Multicast 305 */ 306 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 307 308 #ifdef _KERNEL /*XXX nonstandard*/ 309 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 310 #else 311 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 312 #endif 313 314 /* 315 * Multicast Scope 316 */ 317 #ifdef _KERNEL /*refers nonstandard items */ 318 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 319 (IN6_IS_ADDR_MULTICAST(a) && \ 320 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 321 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 322 (IN6_IS_ADDR_MULTICAST(a) && \ 323 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 324 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 325 (IN6_IS_ADDR_MULTICAST(a) && \ 326 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 327 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 330 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 333 #else 334 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 337 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 340 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 343 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 346 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 349 #endif 350 351 /* 352 * Wildcard Socket 353 */ 354 #if 0 /*pre-RFC2553*/ 355 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 356 #endif 357 358 /* 359 * KAME Scope 360 */ 361 #ifdef _KERNEL /*nonstandard*/ 362 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 363 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 364 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 365 #endif 366 367 /* 368 * IP6 route structure 369 */ 370 #ifndef _XOPEN_SOURCE 371 struct route_in6 { 372 struct rtentry *ro_rt; 373 struct sockaddr_in6 ro_dst; 374 }; 375 #endif 376 377 /* 378 * Options for use with [gs]etsockopt at the IPV6 level. 379 * First word of comment is data type; bool is stored in int. 380 */ 381 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 382 /* no hdrincl */ 383 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 384 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 385 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 386 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 387 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 388 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 389 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 390 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 391 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 392 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 393 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 394 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 395 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 396 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 397 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 398 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 399 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 400 #define IPV6_DSTOPTS 23 /* bool; destination option */ 401 #define IPV6_RTHDR 24 /* bool; routing header */ 402 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 403 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 404 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 405 406 #if 1 /*IPSEC*/ 407 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 408 #endif 409 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 410 411 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 412 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 413 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 414 415 /* 416 * Defaults and limits for options 417 */ 418 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 419 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 420 421 /* 422 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 423 */ 424 struct ipv6_mreq { 425 struct in6_addr ipv6mr_multiaddr; 426 u_int ipv6mr_interface; 427 }; 428 429 /* 430 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 431 */ 432 struct in6_pktinfo { 433 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 434 u_int ipi6_ifindex; /* send/recv interface index */ 435 }; 436 437 /* 438 * Argument for IPV6_PORTRANGE: 439 * - which range to search when port is unspecified at bind() or connect() 440 */ 441 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 442 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 443 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 444 445 #ifndef _XOPEN_SOURCE 446 /* 447 * Definitions for inet6 sysctl operations. 448 * 449 * Third level is protocol number. 450 * Fourth level is desired variable within that protocol. 451 */ 452 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 453 454 #define CTL_IPV6PROTO_NAMES { \ 455 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 456 { 0, 0 }, \ 457 { "tcp6", CTLTYPE_NODE }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 462 { 0, 0 }, \ 463 { 0, 0 }, \ 464 { "udp6", CTLTYPE_NODE }, \ 465 { 0, 0 }, \ 466 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 470 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 471 { 0, 0 }, \ 472 { "ip6", CTLTYPE_NODE }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 477 { 0, 0 }, \ 478 { "ipsec6", CTLTYPE_NODE }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, \ 485 { "icmp6", CTLTYPE_NODE }, \ 486 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 494 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 495 { 0, 0 }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { "pim6", CTLTYPE_NODE }, \ 499 } 500 501 /* 502 * Names for IP sysctl objects 503 */ 504 #define IPV6CTL_FORWARDING 1 /* act as router */ 505 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 506 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 507 #ifdef notyet 508 #define IPV6CTL_DEFMTU 4 /* default MTU */ 509 #endif 510 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 511 #define IPV6CTL_STATS 6 /* stats */ 512 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 513 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 514 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 515 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 516 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 517 #define IPV6CTL_ACCEPT_RTADV 12 518 #define IPV6CTL_KEEPFAITH 13 519 #define IPV6CTL_LOG_INTERVAL 14 520 #define IPV6CTL_HDRNESTLIMIT 15 521 #define IPV6CTL_DAD_COUNT 16 522 #define IPV6CTL_AUTO_FLOWLABEL 17 523 #define IPV6CTL_DEFMCASTHLIM 18 524 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 525 #define IPV6CTL_KAME_VERSION 20 526 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 527 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 528 #define IPV6CTL_BINDV6ONLY 24 529 /* New entries should be added here from current IPV6CTL_MAXID value. */ 530 #define IPV6CTL_MAXID 25 531 532 #define IPV6CTL_NAMES { \ 533 { 0, 0 }, \ 534 { "forwarding", CTLTYPE_INT }, \ 535 { "redirect", CTLTYPE_INT }, \ 536 { "hlim", CTLTYPE_INT }, \ 537 { "mtu", CTLTYPE_INT }, \ 538 { "forwsrcrt", CTLTYPE_INT }, \ 539 { 0, 0 }, \ 540 { 0, 0 }, \ 541 { "mrtproto", CTLTYPE_INT }, \ 542 { "maxfragpackets", CTLTYPE_INT }, \ 543 { "sourcecheck", CTLTYPE_INT }, \ 544 { "sourcecheck_logint", CTLTYPE_INT }, \ 545 { "accept_rtadv", CTLTYPE_INT }, \ 546 { "keepfaith", CTLTYPE_INT }, \ 547 { "log_interval", CTLTYPE_INT }, \ 548 { "hdrnestlimit", CTLTYPE_INT }, \ 549 { "dad_count", CTLTYPE_INT }, \ 550 { "auto_flowlabel", CTLTYPE_INT }, \ 551 { "defmcasthlim", CTLTYPE_INT }, \ 552 { "gifhlim", CTLTYPE_INT }, \ 553 { "kame_version", CTLTYPE_STRING }, \ 554 { "use_deprecated", CTLTYPE_INT }, \ 555 { "rr_prune", CTLTYPE_INT }, \ 556 { 0, 0 }, \ 557 { "bindv6only", CTLTYPE_INT }, \ 558 } 559 560 #define IPV6CTL_VARS { \ 561 0, \ 562 &ip6_forwarding, \ 563 &ip6_sendredirects, \ 564 &ip6_defhlim, \ 565 0, \ 566 &ip6_forward_srcrt, \ 567 0, \ 568 0, \ 569 0, \ 570 &ip6_maxfragpackets, \ 571 &ip6_sourcecheck, \ 572 &ip6_sourcecheck_interval, \ 573 &ip6_accept_rtadv, \ 574 &ip6_keepfaith, \ 575 &ip6_log_interval, \ 576 &ip6_hdrnestlimit, \ 577 &ip6_dad_count, \ 578 &ip6_auto_flowlabel, \ 579 &ip6_defmcasthlim, \ 580 &ip6_gif_hlim, \ 581 0, \ 582 &ip6_use_deprecated, \ 583 &ip6_rr_prune, \ 584 0, \ 585 &ip6_bindv6only, \ 586 } 587 #endif /* !_XOPEN_SOURCE */ 588 589 #ifdef _KERNEL 590 struct cmsghdr; 591 592 int in6_canforward __P((struct in6_addr *, struct in6_addr *)); 593 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 594 int in6_localaddr __P((struct in6_addr *)); 595 int in6_addrscope __P((struct in6_addr *)); 596 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 597 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 598 extern void in6_if_up __P((struct ifnet *)); 599 600 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 601 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 602 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 603 #endif /* _KERNEL */ 604 605 __BEGIN_DECLS 606 struct cmsghdr; 607 608 extern int inet6_option_space(int); 609 extern int inet6_option_init(void *, struct cmsghdr **, int); 610 extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, int, int); 611 extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 612 extern int inet6_option_next(const struct cmsghdr *, u_int8_t **); 613 extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int); 614 615 extern size_t inet6_rthdr_space __P((int, int)); 616 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 617 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 618 unsigned int)); 619 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 620 #if 0 /* not implemented yet */ 621 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 622 #endif 623 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 624 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 625 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 626 __END_DECLS 627 628 #endif /* !_NETINET6_IN6_H_ */ 629
Indexes created Fri Sep 26 20:09:58 GMT 2025