in6.h revision 1.8
1 /* $NetBSD: in6.h,v 1.8 2000/01/06 06:41:19 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 _NETINET6_IN6_H_ 68 #define _NETINET6_IN6_H_ 69 70 #if !defined(_XOPEN_SOURCE) 71 #include <sys/queue.h> 72 #endif 73 74 /* 75 * Identification of the network protocol stack 76 */ 77 #define __KAME__ 78 #define __KAME_VERSION "19991213/NetBSD-current" 79 80 /* 81 * Local port number conventions: 82 * 83 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 84 * unless a kernel is compiled with IPNOPRIVPORTS defined. 85 * 86 * When a user does a bind(2) or connect(2) with a port number of zero, 87 * a non-conflicting local port address is chosen. 88 * 89 * The default range is IPPORT_ANONMIX to IPPORT_ANONMAX, although 90 * that is settable by sysctl(3); net.inet.ip.anonportmin and 91 * net.inet.ip.anonportmax respectively. 92 * 93 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 94 * default assignment range. 95 * 96 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 97 * 98 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 99 * and exists only for FreeBSD compatibility purposes. 100 * 101 * The value IP_PORTRANGE_LOW changes the range to the "low" are 102 * that is (by convention) restricted to privileged processes. 103 * This convention is based on "vouchsafe" principles only. 104 * It is only secure if you trust the remote host to restrict these ports. 105 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 106 */ 107 108 #define IPV6PORT_RESERVED 1024 109 #define IPV6PORT_ANONMIN 49152 110 #define IPV6PORT_ANONMAX 65535 111 #define IPV6PORT_RESERVEDMIN 600 112 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 113 114 /* 115 * IPv6 address 116 */ 117 struct in6_addr { 118 union { 119 u_int8_t __u6_addr8[16]; 120 u_int16_t __u6_addr16[8]; 121 u_int32_t __u6_addr32[4]; 122 } __u6_addr; /* 128-bit IP6 address */ 123 }; 124 125 #define s6_addr __u6_addr.__u6_addr8 126 #ifdef _KERNEL /*XXX nonstandard*/ 127 #define s6_addr8 __u6_addr.__u6_addr8 128 #define s6_addr16 __u6_addr.__u6_addr16 129 #define s6_addr32 __u6_addr.__u6_addr32 130 #endif 131 132 #define INET6_ADDRSTRLEN 46 133 134 /* 135 * Socket address for IPv6 136 */ 137 #if !defined(_XOPEN_SOURCE) 138 #define SIN6_LEN 139 #endif 140 struct sockaddr_in6 { 141 u_char sin6_len; /* length of this struct(sa_family_t)*/ 142 u_char sin6_family; /* AF_INET6 (sa_family_t) */ 143 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 144 u_int32_t sin6_flowinfo; /* IP6 flow information */ 145 struct in6_addr sin6_addr; /* IP6 address */ 146 u_int32_t sin6_scope_id; /* intface scope id */ 147 }; 148 149 /* 150 * Local definition for masks 151 */ 152 #ifdef _KERNEL /*XXX nonstandard*/ 153 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 154 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 155 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 156 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 157 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 158 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 159 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 160 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 161 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 162 #endif 163 164 #ifdef _KERNEL 165 extern const struct in6_addr in6mask0; 166 extern const struct in6_addr in6mask32; 167 extern const struct in6_addr in6mask64; 168 extern const struct in6_addr in6mask96; 169 extern const struct in6_addr in6mask128; 170 #endif /* _KERNEL */ 171 172 /* 173 * Macros started with IPV6_ADDR is KAME local 174 */ 175 #ifdef _KERNEL /*XXX nonstandard*/ 176 #if BYTE_ORDER == BIG_ENDIAN 177 #define IPV6_ADDR_INT32_ONE 1 178 #define IPV6_ADDR_INT32_TWO 2 179 #define IPV6_ADDR_INT32_MNL 0xff010000 180 #define IPV6_ADDR_INT32_MLL 0xff020000 181 #define IPV6_ADDR_INT32_SMP 0x0000ffff 182 #define IPV6_ADDR_INT16_ULL 0xfe80 183 #define IPV6_ADDR_INT16_USL 0xfec0 184 #define IPV6_ADDR_INT16_MLL 0xff02 185 #elif BYTE_ORDER == LITTLE_ENDIAN 186 #define IPV6_ADDR_INT32_ONE 0x01000000 187 #define IPV6_ADDR_INT32_TWO 0x02000000 188 #define IPV6_ADDR_INT32_MNL 0x000001ff 189 #define IPV6_ADDR_INT32_MLL 0x000002ff 190 #define IPV6_ADDR_INT32_SMP 0xffff0000 191 #define IPV6_ADDR_INT16_ULL 0x80fe 192 #define IPV6_ADDR_INT16_USL 0xc0fe 193 #define IPV6_ADDR_INT16_MLL 0x02ff 194 #endif 195 #endif 196 197 /* 198 * Definition of some useful macros to handle IP6 addresses 199 */ 200 #define IN6ADDR_ANY_INIT \ 201 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 203 #define IN6ADDR_LOOPBACK_INIT \ 204 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 206 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 207 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 209 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 210 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 212 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 213 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 215 216 extern const struct in6_addr in6addr_any; 217 extern const struct in6_addr in6addr_loopback; 218 extern const struct in6_addr in6addr_nodelocal_allnodes; 219 extern const struct in6_addr in6addr_linklocal_allnodes; 220 extern const struct in6_addr in6addr_linklocal_allrouters; 221 222 /* 223 * Equality 224 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 225 * does not supply memcmp(). For userland memcmp() is preferred as it is 226 * in ANSI standard. 227 */ 228 #ifdef _KERNEL 229 #define IN6_ARE_ADDR_EQUAL(a, b) \ 230 (bcmp((a), (b), sizeof(struct in6_addr)) == 0) 231 #else 232 #define IN6_ARE_ADDR_EQUAL(a, b) \ 233 (memcmp((a), (b), sizeof(struct in6_addr)) == 0) 234 #endif 235 236 /* 237 * Unspecified 238 */ 239 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 240 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 241 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 242 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 243 (*(u_int32_t *)(&(a)->s6_addr[12]) == 0)) 244 245 /* 246 * Loopback 247 */ 248 #define IN6_IS_ADDR_LOOPBACK(a) \ 249 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 250 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 251 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 252 (*(u_int32_t *)(&(a)->s6_addr[12]) == ntohl(1))) 253 254 /* 255 * IPv4 compatible 256 */ 257 #define IN6_IS_ADDR_V4COMPAT(a) \ 258 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 259 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 260 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 261 (*(u_int32_t *)(&(a)->s6_addr[12]) != 0) && \ 262 (*(u_int32_t *)(&(a)->s6_addr[12]) != ntohl(1))) 263 264 /* 265 * Mapped 266 */ 267 #define IN6_IS_ADDR_V4MAPPED(a) \ 268 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 269 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 270 (*(u_int32_t *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 271 272 /* 273 * KAME Scope Values 274 */ 275 276 #ifdef _KERNEL /*XXX nonstandard*/ 277 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 278 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 279 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 280 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 281 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 282 #else 283 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 284 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 285 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 286 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 287 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 288 #endif 289 290 /* 291 * Unicast Scope 292 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 293 */ 294 #define IN6_IS_ADDR_LINKLOCAL(a) \ 295 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 296 #define IN6_IS_ADDR_SITELOCAL(a) \ 297 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 298 299 /* 300 * Multicast 301 */ 302 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 303 304 #ifdef _KERNEL /*XXX nonstandard*/ 305 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 306 #else 307 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 308 #endif 309 310 /* 311 * Multicast Scope 312 */ 313 #ifdef _KERNEL /*refers nonstandard items */ 314 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 315 (IN6_IS_ADDR_MULTICAST(a) && \ 316 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 317 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 320 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 323 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 326 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 327 (IN6_IS_ADDR_MULTICAST(a) && \ 328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 329 #else 330 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 333 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 336 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 339 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 342 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 345 #endif 346 347 /* 348 * Wildcard Socket 349 */ 350 #if 0 /*pre-RFC2553*/ 351 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 352 #endif 353 354 /* 355 * KAME Scope 356 */ 357 #ifdef _KERNEL /*nonstandard*/ 358 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 359 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 360 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 361 #endif 362 363 /* 364 * IP6 route structure 365 */ 366 #if !defined(_XOPEN_SOURCE) 367 struct route_in6 { 368 struct rtentry *ro_rt; 369 struct sockaddr_in6 ro_dst; 370 }; 371 #endif 372 373 /* 374 * Options for use with [gs]etsockopt at the IPV6 level. 375 * First word of comment is data type; bool is stored in int. 376 */ 377 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 378 /* no hdrincl */ 379 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 380 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 381 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 382 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 383 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 384 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 385 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 386 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 387 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 388 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 389 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 390 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 391 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 392 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 393 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 394 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 395 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 396 #define IPV6_DSTOPTS 23 /* bool; destination option */ 397 #define IPV6_RTHDR 24 /* bool; routing header */ 398 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 399 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 400 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 401 402 #if 1 /*IPSEC*/ 403 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 404 #endif 405 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 406 407 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 408 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 409 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 410 411 /* 412 * Defaults and limits for options 413 */ 414 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 415 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 416 417 /* 418 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 419 */ 420 struct ipv6_mreq { 421 struct in6_addr ipv6mr_multiaddr; 422 u_int ipv6mr_interface; 423 }; 424 425 /* 426 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 427 */ 428 struct in6_pktinfo { 429 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 430 u_int ipi6_ifindex; /* send/recv interface index */ 431 }; 432 433 /* 434 * Argument for IPV6_PORTRANGE: 435 * - which range to search when port is unspecified at bind() or connect() 436 */ 437 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 438 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 439 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 440 441 #if !defined(_XOPEN_SOURCE) 442 /* 443 * Definitions for inet6 sysctl operations. 444 * 445 * Third level is protocol number. 446 * Fourth level is desired variable within that protocol. 447 */ 448 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 449 450 #define CTL_IPV6PROTO_NAMES { \ 451 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 452 { 0, 0 }, \ 453 { "tcp6", CTLTYPE_NODE }, \ 454 { 0, 0 }, \ 455 { 0, 0 }, \ 456 { 0, 0 }, \ 457 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, \ 460 { "udp6", CTLTYPE_NODE }, \ 461 { 0, 0 }, \ 462 { 0, 0 }, \ 463 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 464 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \ 468 { "ip6", CTLTYPE_NODE }, \ 469 { 0, 0 }, \ 470 { 0, 0 }, \ 471 { 0, 0 }, \ 472 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 473 { 0, 0 }, \ 474 { "ipsec6", CTLTYPE_NODE }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, \ 477 { 0, 0 }, \ 478 { 0, 0 }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { "icmp6", CTLTYPE_NODE }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 484 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 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 }, \ 492 { 0, 0 }, \ 493 { 0, 0 }, \ 494 { "pim6", CTLTYPE_NODE }, \ 495 } 496 497 /* 498 * Names for IP sysctl objects 499 */ 500 #define IPV6CTL_FORWARDING 1 /* act as router */ 501 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 502 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 503 #ifdef notyet 504 #define IPV6CTL_DEFMTU 4 /* default MTU */ 505 #endif 506 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 507 #define IPV6CTL_STATS 6 /* stats */ 508 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 509 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 510 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 511 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 512 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 513 #define IPV6CTL_ACCEPT_RTADV 12 514 #define IPV6CTL_KEEPFAITH 13 515 #define IPV6CTL_LOG_INTERVAL 14 516 #define IPV6CTL_HDRNESTLIMIT 15 517 #define IPV6CTL_DAD_COUNT 16 518 #define IPV6CTL_AUTO_FLOWLABEL 17 519 #define IPV6CTL_DEFMCASTHLIM 18 520 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 521 #define IPV6CTL_KAME_VERSION 20 522 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 523 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 524 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) 525 #define IPV6CTL_MAPPED_ADDR 23 526 #endif 527 #if defined(__NetBSD__) 528 #define IPV6CTL_BINDV6ONLY 24 529 #endif 530 /* New entries should be added here from current IPV6CTL_MAXID value. */ 531 #define IPV6CTL_MAXID 25 532 533 #ifdef IPV6CTL_MAPPED_ADDR 534 #define IPV6CTL_NAMES_MAPPED_ADDR "mapped_addr" 535 #define IPV6CTL_TYPE_MAPPED_ADDR CTLTYPE_INT 536 #define IPV6CTL_VARS_MAPPED_ADDR &ip6_mapped_addr_on 537 #else 538 #define IPV6CTL_NAMES_MAPPED_ADDR 0 539 #define IPV6CTL_TYPE_MAPPED_ADDR 0 540 #define IPV6CTL_VARS_MAPPED_ADDR 0 541 #endif 542 543 #ifdef IPV6CTL_BINDV6ONLY 544 #define IPV6CTL_NAMES_BINDV6ONLY "bindv6only" 545 #define IPV6CTL_TYPE_BINDV6ONLY CTLTYPE_INT 546 #define IPV6CTL_VARS_BINDV6ONLY &ip6_bindv6only 547 #else 548 #define IPV6CTL_NAMES_BINDV6ONLY 0 549 #define IPV6CTL_TYPE_BINDV6ONLY 0 550 #define IPV6CTL_VARS_BINDV6ONLY 0 551 #endif 552 553 #define IPV6CTL_NAMES { \ 554 { 0, 0 }, \ 555 { "forwarding", CTLTYPE_INT }, \ 556 { "redirect", CTLTYPE_INT }, \ 557 { "hlim", CTLTYPE_INT }, \ 558 { "mtu", CTLTYPE_INT }, \ 559 { "forwsrcrt", CTLTYPE_INT }, \ 560 { 0, 0 }, \ 561 { 0, 0 }, \ 562 { "mrtproto", CTLTYPE_INT }, \ 563 { "maxfragpackets", CTLTYPE_INT }, \ 564 { "sourcecheck", CTLTYPE_INT }, \ 565 { "sourcecheck_logint", CTLTYPE_INT }, \ 566 { "accept_rtadv", CTLTYPE_INT }, \ 567 { "keepfaith", CTLTYPE_INT }, \ 568 { "log_interval", CTLTYPE_INT }, \ 569 { "hdrnestlimit", CTLTYPE_INT }, \ 570 { "dad_count", CTLTYPE_INT }, \ 571 { "auto_flowlabel", CTLTYPE_INT }, \ 572 { "defmcasthlim", CTLTYPE_INT }, \ 573 { "gifhlim", CTLTYPE_INT }, \ 574 { "kame_version", CTLTYPE_STRING }, \ 575 { "use_deprecated", CTLTYPE_INT }, \ 576 { "rr_prune", CTLTYPE_INT }, \ 577 { IPV6CTL_NAMES_MAPPED_ADDR, IPV6CTL_TYPE_MAPPED_ADDR }, \ 578 { IPV6CTL_NAMES_BINDV6ONLY, IPV6CTL_TYPE_BINDV6ONLY }, \ 579 } 580 581 #define IPV6CTL_VARS { \ 582 0, \ 583 &ip6_forwarding, \ 584 &ip6_sendredirects, \ 585 &ip6_defhlim, \ 586 0, \ 587 &ip6_forward_srcrt, \ 588 0, \ 589 0, \ 590 0, \ 591 &ip6_maxfragpackets, \ 592 &ip6_sourcecheck, \ 593 &ip6_sourcecheck_interval, \ 594 &ip6_accept_rtadv, \ 595 &ip6_keepfaith, \ 596 &ip6_log_interval, \ 597 &ip6_hdrnestlimit, \ 598 &ip6_dad_count, \ 599 &ip6_auto_flowlabel, \ 600 &ip6_defmcasthlim, \ 601 &ip6_gif_hlim, \ 602 0, \ 603 &ip6_use_deprecated, \ 604 &ip6_rr_prune, \ 605 IPV6CTL_VARS_MAPPED_ADDR, \ 606 IPV6CTL_VARS_BINDV6ONLY, \ 607 } 608 #endif /* !_XOPEN_SOURCE */ 609 610 #ifdef _KERNEL 611 struct cmsghdr; 612 613 int in6_canforward __P((struct in6_addr *, struct in6_addr *)); 614 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 615 int in6_localaddr __P((struct in6_addr *)); 616 int in6_addrscope __P((struct in6_addr *)); 617 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 618 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 619 extern void in6_if_up __P((struct ifnet *)); 620 #ifdef MAPPED_ADDR_ENABLED 621 struct sockaddr; 622 623 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 624 struct sockaddr_in6 *sin6)); 625 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 626 struct sockaddr_in6 *sin6)); 627 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 628 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 629 #endif /* MAPPED_ADDR_ENABLED */ 630 631 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 632 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 633 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 634 #endif /* _KERNEL */ 635 636 __BEGIN_DECLS 637 struct cmsghdr; 638 639 extern int inet6_option_space(int); 640 extern int inet6_option_init(void *, struct cmsghdr **, int); 641 extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, int, int); 642 extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 643 extern int inet6_option_next(const struct cmsghdr *, u_int8_t **); 644 extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int); 645 646 extern size_t inet6_rthdr_space __P((int, int)); 647 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 648 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 649 unsigned int)); 650 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 651 #if 0 /* not implemented yet */ 652 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 653 #endif 654 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 655 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 656 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 657 __END_DECLS 658 659 #endif /* !_NETINET6_IN6_H_ */ 660
Indexes created Fri Sep 26 08:10:20 GMT 2025