in6.h revision 1.1.2.3
1 /* 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Copyright (c) 1982, 1986, 1990, 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the University of 45 * California, Berkeley and its contributors. 46 * 4. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)in.h 8.3 (Berkeley) 1/3/94 63 */ 64 65 #ifndef _NETINET6_IN6_H_ 66 #define _NETINET6_IN6_H_ 67 68 #if !defined(_XOPEN_SOURCE) 69 #include <sys/queue.h> 70 #endif 71 72 /* 73 * Identification of the network protocol stack 74 */ 75 #define __KAME__ 76 #define __KAME_VERSION "19991130" 77 78 /* 79 * Local port number conventions: 80 * 81 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 82 * unless a kernel is compiled with IPNOPRIVPORTS defined. 83 * 84 * When a user does a bind(2) or connect(2) with a port number of zero, 85 * a non-conflicting local port address is chosen. 86 * 87 * The default range is IPPORT_ANONMIX to IPPORT_ANONMAX, although 88 * that is settable by sysctl(3); net.inet.ip.anonportmin and 89 * net.inet.ip.anonportmax respectively. 90 * 91 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 92 * default assignment range. 93 * 94 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 95 * 96 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 97 * and exists only for FreeBSD compatibility purposes. 98 * 99 * The value IP_PORTRANGE_LOW changes the range to the "low" are 100 * that is (by convention) restricted to privileged processes. 101 * This convention is based on "vouchsafe" principles only. 102 * It is only secure if you trust the remote host to restrict these ports. 103 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 104 */ 105 106 #define IPV6PORT_RESERVED 1024 107 #define IPV6PORT_ANONMIN 49152 108 #define IPV6PORT_ANONMAX 65535 109 #define IPV6PORT_RESERVEDMIN 600 110 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 111 112 /* 113 * IPv6 address 114 */ 115 struct in6_addr { 116 union { 117 u_int8_t __u6_addr8[16]; 118 u_int16_t __u6_addr16[8]; 119 u_int32_t __u6_addr32[4]; 120 } __u6_addr; /* 128-bit IP6 address */ 121 }; 122 123 #define s6_addr __u6_addr.__u6_addr8 124 #ifdef _KERNEL /*XXX nonstandard*/ 125 #define s6_addr8 __u6_addr.__u6_addr8 126 #define s6_addr16 __u6_addr.__u6_addr16 127 #define s6_addr32 __u6_addr.__u6_addr32 128 #endif 129 130 #define INET6_ADDRSTRLEN 46 131 132 /* 133 * Socket address for IPv6 134 */ 135 #if !defined(_XOPEN_SOURCE) 136 #define SIN6_LEN 137 #endif 138 struct sockaddr_in6 { 139 u_char sin6_len; /* length of this struct(sa_family_t)*/ 140 u_char sin6_family; /* AF_INET6 (sa_family_t) */ 141 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 142 u_int32_t sin6_flowinfo; /* IP6 flow information */ 143 struct in6_addr sin6_addr; /* IP6 address */ 144 u_int32_t sin6_scope_id; /* intface scope id */ 145 }; 146 147 /* 148 * Local definition for masks 149 */ 150 #ifdef _KERNEL /*XXX nonstandard*/ 151 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 152 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 153 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 154 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 155 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 156 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 157 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 158 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 159 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 160 #endif 161 162 #ifdef _KERNEL 163 extern const struct in6_addr in6mask0; 164 extern const struct in6_addr in6mask32; 165 extern const struct in6_addr in6mask64; 166 extern const struct in6_addr in6mask96; 167 extern const struct in6_addr in6mask128; 168 #endif /* _KERNEL */ 169 170 /* 171 * Macros started with IPV6_ADDR is KAME local 172 */ 173 #ifdef _KERNEL /*XXX nonstandard*/ 174 #if BYTE_ORDER == BIG_ENDIAN 175 #define IPV6_ADDR_INT32_ONE 1 176 #define IPV6_ADDR_INT32_TWO 2 177 #define IPV6_ADDR_INT32_MNL 0xff010000 178 #define IPV6_ADDR_INT32_MLL 0xff020000 179 #define IPV6_ADDR_INT32_SMP 0x0000ffff 180 #define IPV6_ADDR_INT16_ULL 0xfe80 181 #define IPV6_ADDR_INT16_USL 0xfec0 182 #define IPV6_ADDR_INT16_MLL 0xff02 183 #elif BYTE_ORDER == LITTLE_ENDIAN 184 #define IPV6_ADDR_INT32_ONE 0x01000000 185 #define IPV6_ADDR_INT32_TWO 0x02000000 186 #define IPV6_ADDR_INT32_MNL 0x000001ff 187 #define IPV6_ADDR_INT32_MLL 0x000002ff 188 #define IPV6_ADDR_INT32_SMP 0xffff0000 189 #define IPV6_ADDR_INT16_ULL 0x80fe 190 #define IPV6_ADDR_INT16_USL 0xc0fe 191 #define IPV6_ADDR_INT16_MLL 0x02ff 192 #endif 193 #endif 194 195 /* 196 * Definition of some useful macros to handle IP6 addresses 197 */ 198 #define IN6ADDR_ANY_INIT \ 199 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 200 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 201 #define IN6ADDR_LOOPBACK_INIT \ 202 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 204 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 205 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 207 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 208 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 209 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 210 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 211 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 213 214 extern const struct in6_addr in6addr_any; 215 extern const struct in6_addr in6addr_loopback; 216 extern const struct in6_addr in6addr_nodelocal_allnodes; 217 extern const struct in6_addr in6addr_linklocal_allnodes; 218 extern const struct in6_addr in6addr_linklocal_allrouters; 219 220 /* 221 * Equality 222 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 223 * does not supply memcmp(). For userland memcmp() is preferred as it is 224 * in ANSI standard. 225 */ 226 #ifdef _KERNEL 227 #define IN6_ARE_ADDR_EQUAL(a, b) \ 228 (bcmp((a), (b), sizeof(struct in6_addr)) == 0) 229 #else 230 #define IN6_ARE_ADDR_EQUAL(a, b) \ 231 (memcmp((a), (b), sizeof(struct in6_addr)) == 0) 232 #endif 233 234 /* 235 * Unspecified 236 */ 237 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 238 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 239 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 240 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 241 (*(u_int32_t *)(&(a)->s6_addr[12]) == 0)) 242 243 /* 244 * Loopback 245 */ 246 #define IN6_IS_ADDR_LOOPBACK(a) \ 247 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 248 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 249 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 250 (*(u_int32_t *)(&(a)->s6_addr[12]) == ntohl(1))) 251 252 /* 253 * IPv4 compatible 254 */ 255 #define IN6_IS_ADDR_V4COMPAT(a) \ 256 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 257 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 258 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 259 (*(u_int32_t *)(&(a)->s6_addr[12]) != 0) && \ 260 (*(u_int32_t *)(&(a)->s6_addr[12]) != ntohl(1))) 261 262 /* 263 * Mapped 264 */ 265 #define IN6_IS_ADDR_V4MAPPED(a) \ 266 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 267 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 268 (*(u_int32_t *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 269 270 /* 271 * KAME Scope Values 272 */ 273 274 #ifdef _KERNEL /*XXX nonstandard*/ 275 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 276 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 277 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 278 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 279 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 280 #else 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 #endif 287 288 /* 289 * Unicast Scope 290 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 291 */ 292 #define IN6_IS_ADDR_LINKLOCAL(a) \ 293 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 294 #define IN6_IS_ADDR_SITELOCAL(a) \ 295 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 296 297 /* 298 * Multicast 299 */ 300 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 301 302 #ifdef _KERNEL /*XXX nonstandard*/ 303 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 304 #else 305 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 306 #endif 307 308 /* 309 * Multicast Scope 310 */ 311 #ifdef _KERNEL /*refers nonstandard items */ 312 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 313 (IN6_IS_ADDR_MULTICAST(a) && \ 314 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 315 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 316 (IN6_IS_ADDR_MULTICAST(a) && \ 317 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 318 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 319 (IN6_IS_ADDR_MULTICAST(a) && \ 320 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 321 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 322 (IN6_IS_ADDR_MULTICAST(a) && \ 323 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 324 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 325 (IN6_IS_ADDR_MULTICAST(a) && \ 326 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 327 #else 328 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 329 (IN6_IS_ADDR_MULTICAST(a) && \ 330 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 331 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 332 (IN6_IS_ADDR_MULTICAST(a) && \ 333 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 334 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 337 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 340 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 343 #endif 344 345 /* 346 * Wildcard Socket 347 */ 348 #if 0 /*pre-RFC2553*/ 349 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 350 #endif 351 352 /* 353 * KAME Scope 354 */ 355 #ifdef _KERNEL /*nonstandard*/ 356 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 357 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 358 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 359 #endif 360 361 /* 362 * IP6 route structure 363 */ 364 #if !defined(_XOPEN_SOURCE) 365 struct route_in6 { 366 struct rtentry *ro_rt; 367 struct sockaddr_in6 ro_dst; 368 }; 369 #endif 370 371 /* 372 * Options for use with [gs]etsockopt at the IPV6 level. 373 * First word of comment is data type; bool is stored in int. 374 */ 375 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 376 /* no hdrincl */ 377 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 378 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 379 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 380 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 381 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 382 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 383 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 384 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 385 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 386 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 387 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 388 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 389 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 390 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 391 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 392 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 393 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 394 #define IPV6_DSTOPTS 23 /* bool; destination option */ 395 #define IPV6_RTHDR 24 /* bool; routing header */ 396 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 397 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 398 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 399 400 #if 1 /*IPSEC*/ 401 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 402 #endif 403 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 404 405 #if 1 /*IPV6FIREWALL*/ 406 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 407 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 408 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 409 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 410 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 411 #endif 412 413 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 414 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 415 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 416 417 /* 418 * Defaults and limits for options 419 */ 420 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 421 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 422 423 /* 424 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 425 */ 426 struct ipv6_mreq { 427 struct in6_addr ipv6mr_multiaddr; 428 u_int ipv6mr_interface; 429 }; 430 431 /* 432 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 433 */ 434 struct in6_pktinfo { 435 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 436 u_int ipi6_ifindex; /* send/recv interface index */ 437 }; 438 439 /* 440 * Argument for IPV6_PORTRANGE: 441 * - which range to search when port is unspecified at bind() or connect() 442 */ 443 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 444 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 445 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 446 447 #if !defined(_XOPEN_SOURCE) 448 /* 449 * Definitions for inet6 sysctl operations. 450 * 451 * Third level is protocol number. 452 * Fourth level is desired variable within that protocol. 453 */ 454 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 455 456 #define CTL_IPV6PROTO_NAMES { \ 457 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 458 { 0, 0 }, \ 459 { "tcp6", CTLTYPE_NODE }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { 0, 0 }, \ 463 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 464 { 0, 0 }, \ 465 { 0, 0 }, \ 466 { "udp6", CTLTYPE_NODE }, \ 467 { 0, 0 }, \ 468 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 472 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 473 { 0, 0 }, \ 474 { "ip6", CTLTYPE_NODE }, \ 475 { 0, 0 }, \ 476 { 0, 0 }, \ 477 { 0, 0 }, \ 478 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 479 { 0, 0 }, \ 480 { "ipsec6", CTLTYPE_NODE }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { "icmp6", CTLTYPE_NODE }, \ 488 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 496 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { 0, 0 }, \ 500 { "pim6", CTLTYPE_NODE }, \ 501 } 502 503 /* 504 * Names for IP sysctl objects 505 */ 506 #define IPV6CTL_FORWARDING 1 /* act as router */ 507 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 508 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 509 #ifdef notyet 510 #define IPV6CTL_DEFMTU 4 /* default MTU */ 511 #endif 512 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 513 #define IPV6CTL_STATS 6 /* stats */ 514 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 515 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 516 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 517 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 518 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 519 #define IPV6CTL_ACCEPT_RTADV 12 520 #define IPV6CTL_KEEPFAITH 13 521 #define IPV6CTL_LOG_INTERVAL 14 522 #define IPV6CTL_HDRNESTLIMIT 15 523 #define IPV6CTL_DAD_COUNT 16 524 #define IPV6CTL_AUTO_FLOWLABEL 17 525 #define IPV6CTL_DEFMCASTHLIM 18 526 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 527 #define IPV6CTL_KAME_VERSION 20 528 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 529 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 530 #ifdef MAPPED_ADDR_ENABLED 531 #define IPV6CTL_MAPPED_ADDR 23 532 #endif /* MAPPED_ADDR_ENABLED */ 533 /* New entries should be added here from current IPV6CTL_MAXID value. */ 534 #define IPV6CTL_MAXID 24 535 536 #ifdef MAPPED_ADDR_ENABLED 537 #define IPV6CTL_NAMES_MAPPED_ADDR "mapped_addr" 538 #define IPV6CTL_TYPE_MAPPED_ADDR CTLTYPE_INT 539 #define IPV6CTL_VARS_MAPPED_ADDR &ip6_mapped_addr_on 540 #else /* MAPPED_ADDR_ENABLED */ 541 #define IPV6CTL_NAMES_MAPPED_ADDR 0 542 #define IPV6CTL_TYPE_MAPPED_ADDR 0 543 #define IPV6CTL_VARS_MAPPED_ADDR 0 544 #endif /* MAPPED_ADDR_ENABLED */ 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 { "gifhlim", CTLTYPE_INT }, \ 567 { "kame_version", CTLTYPE_STRING }, \ 568 { "use_deprecated", CTLTYPE_INT }, \ 569 { "rr_prune", CTLTYPE_INT }, \ 570 { IPV6CTL_NAMES_MAPPED_ADDR, IPV6CTL_TYPE_MAPPED_ADDR }, \ 571 } 572 573 #define IPV6CTL_VARS { \ 574 0, \ 575 &ip6_forwarding, \ 576 &ip6_sendredirects, \ 577 &ip6_defhlim, \ 578 0, \ 579 &ip6_forward_srcrt, \ 580 0, \ 581 0, \ 582 0, \ 583 &ip6_maxfragpackets, \ 584 &ip6_sourcecheck, \ 585 &ip6_sourcecheck_interval, \ 586 &ip6_accept_rtadv, \ 587 &ip6_keepfaith, \ 588 &ip6_log_interval, \ 589 &ip6_hdrnestlimit, \ 590 &ip6_dad_count, \ 591 &ip6_auto_flowlabel, \ 592 &ip6_defmcasthlim, \ 593 &ip6_gif_hlim, \ 594 0, \ 595 &ip6_use_deprecated, \ 596 &ip6_rr_prune, \ 597 IPV6CTL_VARS_MAPPED_ADDR, \ 598 } 599 #endif /* !_XOPEN_SOURCE */ 600 601 #ifdef _KERNEL 602 struct cmsghdr; 603 604 int in6_canforward __P((struct in6_addr *, struct in6_addr *)); 605 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 606 int in6_localaddr __P((struct in6_addr *)); 607 int in6_addrscope __P((struct in6_addr *)); 608 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 609 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 610 extern void in6_if_up __P((struct ifnet *)); 611 #ifdef MAPPED_ADDR_ENABLED 612 struct sockaddr; 613 614 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 615 struct sockaddr_in6 *sin6)); 616 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 617 struct sockaddr_in6 *sin6)); 618 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 619 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 620 #endif /* MAPPED_ADDR_ENABLED */ 621 622 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 623 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 624 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 625 #endif /* _KERNEL */ 626 627 __BEGIN_DECLS 628 struct cmsghdr; 629 630 extern int inet6_option_space(int); 631 extern int inet6_option_init(void *, struct cmsghdr **, int); 632 extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, int, int); 633 extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 634 extern int inet6_option_next(const struct cmsghdr *, u_int8_t **); 635 extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int); 636 637 extern size_t inet6_rthdr_space __P((int, int)); 638 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 639 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 640 unsigned int)); 641 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 642 #if 0 /* not implemented yet */ 643 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 644 #endif 645 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 646 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 647 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 648 __END_DECLS 649 650 #endif /* !_NETINET6_IN6_H_ */ 651
Indexes created Mon Oct 20 20:10:13 GMT 2025