in6.h revision 1.37
1 /* $NetBSD: in6.h,v 1.37 2002/05/13 14:25:13 kleink Exp $ */ 2 /* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1982, 1986, 1990, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. 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. see RFC2553" 70 #endif 71 72 #ifndef _NETINET6_IN6_H_ 73 #define _NETINET6_IN6_H_ 74 75 /* 76 * Identification of the network protocol stack 77 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 78 * has the table of implementation/integration differences. 79 */ 80 #define __KAME__ 81 #define __KAME_VERSION "NetBSD-current" 82 83 /* 84 * Local port number conventions: 85 * 86 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 87 * unless a kernel is compiled with IPNOPRIVPORTS defined. 88 * 89 * When a user does a bind(2) or connect(2) with a port number of zero, 90 * a non-conflicting local port address is chosen. 91 * 92 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 93 * that is settable by sysctl(3); net.inet.ip.anonportmin and 94 * net.inet.ip.anonportmax respectively. 95 * 96 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 97 * default assignment range. 98 * 99 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 100 * 101 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 102 * and exists only for FreeBSD compatibility purposes. 103 * 104 * The value IP_PORTRANGE_LOW changes the range to the "low" are 105 * that is (by convention) restricted to privileged processes. 106 * This convention is based on "vouchsafe" principles only. 107 * It is only secure if you trust the remote host to restrict these ports. 108 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 109 */ 110 111 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 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 #endif 118 119 /* 120 * IPv6 address 121 */ 122 struct in6_addr { 123 union { 124 u_int8_t __u6_addr8[16]; 125 u_int16_t __u6_addr16[8]; 126 u_int32_t __u6_addr32[4]; 127 } __u6_addr; /* 128-bit IP6 address */ 128 }; 129 130 #define s6_addr __u6_addr.__u6_addr8 131 #ifdef _KERNEL /* XXX nonstandard */ 132 #define s6_addr8 __u6_addr.__u6_addr8 133 #define s6_addr16 __u6_addr.__u6_addr16 134 #define s6_addr32 __u6_addr.__u6_addr32 135 #endif 136 137 #define INET6_ADDRSTRLEN 46 138 139 /* 140 * Socket address for IPv6 141 */ 142 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 143 #define SIN6_LEN 144 #endif 145 struct sockaddr_in6 { 146 u_int8_t sin6_len; /* length of this struct(socklen_t)*/ 147 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 148 in_port_t sin6_port; /* Transport layer port */ 149 u_int32_t sin6_flowinfo; /* IP6 flow information */ 150 struct in6_addr sin6_addr; /* IP6 address */ 151 u_int32_t sin6_scope_id; /* scope zone index */ 152 }; 153 154 /* 155 * Local definition for masks 156 */ 157 #ifdef _KERNEL /* XXX nonstandard */ 158 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 159 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 160 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 161 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 163 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 164 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 165 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 166 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 167 #endif 168 169 #ifdef _KERNEL 170 extern const struct sockaddr_in6 sa6_any; 171 172 extern const struct in6_addr in6mask0; 173 extern const struct in6_addr in6mask32; 174 extern const struct in6_addr in6mask64; 175 extern const struct in6_addr in6mask96; 176 extern const struct in6_addr in6mask128; 177 #endif /* _KERNEL */ 178 179 /* 180 * Macros started with IPV6_ADDR is KAME local 181 */ 182 #ifdef _KERNEL /* XXX nonstandard */ 183 #if BYTE_ORDER == BIG_ENDIAN 184 #define IPV6_ADDR_INT32_ONE 1 185 #define IPV6_ADDR_INT32_TWO 2 186 #define IPV6_ADDR_INT32_MNL 0xff010000 187 #define IPV6_ADDR_INT32_MLL 0xff020000 188 #define IPV6_ADDR_INT32_SMP 0x0000ffff 189 #define IPV6_ADDR_INT16_ULL 0xfe80 190 #define IPV6_ADDR_INT16_USL 0xfec0 191 #define IPV6_ADDR_INT16_MLL 0xff02 192 #elif BYTE_ORDER == LITTLE_ENDIAN 193 #define IPV6_ADDR_INT32_ONE 0x01000000 194 #define IPV6_ADDR_INT32_TWO 0x02000000 195 #define IPV6_ADDR_INT32_MNL 0x000001ff 196 #define IPV6_ADDR_INT32_MLL 0x000002ff 197 #define IPV6_ADDR_INT32_SMP 0xffff0000 198 #define IPV6_ADDR_INT16_ULL 0x80fe 199 #define IPV6_ADDR_INT16_USL 0xc0fe 200 #define IPV6_ADDR_INT16_MLL 0x02ff 201 #endif 202 #endif 203 204 /* 205 * Definition of some useful macros to handle IP6 addresses 206 */ 207 #define IN6ADDR_ANY_INIT \ 208 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 209 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 210 #define IN6ADDR_LOOPBACK_INIT \ 211 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 212 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 213 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 214 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 215 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 216 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 217 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 219 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 220 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 222 223 extern const struct in6_addr in6addr_any; 224 extern const struct in6_addr in6addr_loopback; 225 extern const struct in6_addr in6addr_nodelocal_allnodes; 226 extern const struct in6_addr in6addr_linklocal_allnodes; 227 extern const struct in6_addr in6addr_linklocal_allrouters; 228 229 /* 230 * Equality 231 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 232 * does not supply memcmp(). For userland memcmp() is preferred as it is 233 * in ANSI standard. 234 */ 235 #ifdef _KERNEL 236 #define IN6_ARE_ADDR_EQUAL(a, b) \ 237 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 238 #else 239 #define IN6_ARE_ADDR_EQUAL(a, b) \ 240 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 241 #endif 242 243 /* 244 * Unspecified 245 */ 246 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 247 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 248 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 249 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 250 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 251 252 /* 253 * Loopback 254 */ 255 #define IN6_IS_ADDR_LOOPBACK(a) \ 256 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 257 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 258 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 259 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 260 261 /* 262 * IPv4 compatible 263 */ 264 #define IN6_IS_ADDR_V4COMPAT(a) \ 265 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 266 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 267 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 268 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 269 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 270 271 /* 272 * Mapped 273 */ 274 #define IN6_IS_ADDR_V4MAPPED(a) \ 275 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 276 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 277 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 278 279 /* 280 * KAME Scope Values 281 */ 282 283 #ifdef _KERNEL /* XXX nonstandard */ 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 #else 290 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 291 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 292 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 293 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 294 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 295 #endif 296 297 /* 298 * Unicast Scope 299 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 300 */ 301 #define IN6_IS_ADDR_LINKLOCAL(a) \ 302 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 303 #define IN6_IS_ADDR_SITELOCAL(a) \ 304 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 305 306 /* 307 * Multicast 308 */ 309 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 310 311 #ifdef _KERNEL /* XXX nonstandard */ 312 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 313 #else 314 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 315 #endif 316 317 /* 318 * Multicast Scope 319 */ 320 #ifdef _KERNEL /* refers nonstandard items */ 321 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 322 (IN6_IS_ADDR_MULTICAST(a) && \ 323 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 324 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 325 (IN6_IS_ADDR_MULTICAST(a) && \ 326 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 327 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 330 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 333 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 336 #else 337 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 340 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 343 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 346 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 349 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 350 (IN6_IS_ADDR_MULTICAST(a) && \ 351 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 352 #endif 353 354 #ifdef _KERNEL /* nonstandard */ 355 /* 356 * KAME Scope 357 */ 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(_POSIX_C_SOURCE) && !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_int; set/get IP6 multicast i/f */ 386 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 387 #define IPV6_MULTICAST_LOOP 11 /* u_int; 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 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 392 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 393 #endif 394 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 395 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 396 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 397 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 398 #define IPV6_DSTOPTS 23 /* bool; destination option */ 399 #define IPV6_RTHDR 24 /* bool; routing header */ 400 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 401 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 402 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 403 404 #if 1 /* IPSEC */ 405 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 406 #endif 407 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 408 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 409 410 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 411 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 412 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 413 414 /* 415 * Defaults and limits for options 416 */ 417 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 418 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 419 420 /* 421 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 422 */ 423 struct ipv6_mreq { 424 struct in6_addr ipv6mr_multiaddr; 425 unsigned int ipv6mr_interface; 426 }; 427 428 /* 429 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 430 */ 431 struct in6_pktinfo { 432 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 433 unsigned int ipi6_ifindex; /* send/recv interface index */ 434 }; 435 436 /* 437 * Argument for IPV6_PORTRANGE: 438 * - which range to search when port is unspecified at bind() or connect() 439 */ 440 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 441 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 442 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 443 444 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) 445 /* 446 * Definitions for inet6 sysctl operations. 447 * 448 * Third level is protocol number. 449 * Fourth level is desired variable within that protocol. 450 */ 451 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 452 453 #define CTL_IPV6PROTO_NAMES { \ 454 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 455 { 0, 0 }, \ 456 { "tcp6", CTLTYPE_NODE }, \ 457 { 0, 0 }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, \ 460 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 461 { 0, 0 }, \ 462 { 0, 0 }, \ 463 { "udp6", CTLTYPE_NODE }, \ 464 { 0, 0 }, \ 465 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 470 { 0, 0 }, \ 471 { "ip6", CTLTYPE_NODE }, \ 472 { 0, 0 }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, \ 475 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 476 { 0, 0 }, \ 477 { "ipsec6", CTLTYPE_NODE }, \ 478 { 0, 0 }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { "icmp6", CTLTYPE_NODE }, \ 485 { 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 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 494 { 0, 0 }, \ 495 { 0, 0 }, \ 496 { 0, 0 }, \ 497 { "pim6", CTLTYPE_NODE }, \ 498 } 499 500 /* 501 * Names for IP sysctl objects 502 */ 503 #define IPV6CTL_FORWARDING 1 /* act as router */ 504 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 505 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 506 #ifdef notyet 507 #define IPV6CTL_DEFMTU 4 /* default MTU */ 508 #endif 509 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 510 #define IPV6CTL_STATS 6 /* stats */ 511 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 512 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 513 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 514 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 515 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 516 #define IPV6CTL_ACCEPT_RTADV 12 517 #define IPV6CTL_KEEPFAITH 13 518 #define IPV6CTL_LOG_INTERVAL 14 519 #define IPV6CTL_HDRNESTLIMIT 15 520 #define IPV6CTL_DAD_COUNT 16 521 #define IPV6CTL_AUTO_FLOWLABEL 17 522 #define IPV6CTL_DEFMCASTHLIM 18 523 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 524 #define IPV6CTL_KAME_VERSION 20 525 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 526 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 527 /* 23: reserved */ 528 #define IPV6CTL_V6ONLY 24 529 /* 25 to 27: reserved */ 530 #define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */ 531 #define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */ 532 #define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */ 533 #define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */ 534 /* New entries should be added here from current IPV6CTL_MAXID value. */ 535 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 536 #define IPV6CTL_MAXID 32 537 538 #define IPV6CTL_NAMES { \ 539 { 0, 0 }, \ 540 { "forwarding", CTLTYPE_INT }, \ 541 { "redirect", CTLTYPE_INT }, \ 542 { "hlim", CTLTYPE_INT }, \ 543 { "mtu", CTLTYPE_INT }, \ 544 { "forwsrcrt", CTLTYPE_INT }, \ 545 { 0, 0 }, \ 546 { 0, 0 }, \ 547 { "mrtproto", CTLTYPE_INT }, \ 548 { "maxfragpackets", CTLTYPE_INT }, \ 549 { "sourcecheck", CTLTYPE_INT }, \ 550 { "sourcecheck_logint", CTLTYPE_INT }, \ 551 { "accept_rtadv", CTLTYPE_INT }, \ 552 { "keepfaith", CTLTYPE_INT }, \ 553 { "log_interval", CTLTYPE_INT }, \ 554 { "hdrnestlimit", CTLTYPE_INT }, \ 555 { "dad_count", CTLTYPE_INT }, \ 556 { "auto_flowlabel", CTLTYPE_INT }, \ 557 { "defmcasthlim", CTLTYPE_INT }, \ 558 { "gifhlim", CTLTYPE_INT }, \ 559 { "kame_version", CTLTYPE_STRING }, \ 560 { "use_deprecated", CTLTYPE_INT }, \ 561 { "rr_prune", CTLTYPE_INT }, \ 562 { 0, 0 }, \ 563 { "bindv6only", CTLTYPE_INT }, \ 564 { 0, 0 }, \ 565 { 0, 0 }, \ 566 { 0, 0 }, \ 567 { "anonportmin", CTLTYPE_INT }, \ 568 { "anonportmax", CTLTYPE_INT }, \ 569 { "lowportmin", CTLTYPE_INT }, \ 570 { "lowportmax", CTLTYPE_INT }, \ 571 } 572 573 #endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 574 575 #ifdef _KERNEL 576 struct cmsghdr; 577 578 /* 579 * in6_cksum_phdr: 580 * 581 * Compute significant parts of the IPv6 checksum pseudo-header 582 * for use in a delayed TCP/UDP checksum calculation. 583 * 584 * Args: 585 * 586 * src Source IPv6 address 587 * dst Destination IPv6 address 588 * len htonl(proto-hdr-len) 589 * nxt htonl(next-proto-number) 590 * 591 * NOTE: We expect the src and dst addresses to be 16-bit 592 * aligned! 593 */ 594 static __inline u_int16_t __attribute__((__unused__)) 595 in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst, 596 u_int32_t len, u_int32_t nxt) 597 { 598 u_int32_t sum = 0; 599 const u_int16_t *w; 600 601 /*LINTED*/ 602 w = (const u_int16_t *) src; 603 sum += w[0]; 604 if (!IN6_IS_SCOPE_LINKLOCAL(src)) 605 sum += w[1]; 606 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5]; 607 sum += w[6]; sum += w[7]; 608 609 /*LINTED*/ 610 w = (const u_int16_t *) dst; 611 sum += w[0]; 612 if (!IN6_IS_SCOPE_LINKLOCAL(dst)) 613 sum += w[1]; 614 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5]; 615 sum += w[6]; sum += w[7]; 616 617 sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/); 618 619 sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/); 620 621 sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/); 622 623 if (sum > 0xffff) 624 sum -= 0xffff; 625 626 return (sum); 627 } 628 629 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 630 int in6_localaddr __P((struct in6_addr *)); 631 int in6_addrscope __P((struct in6_addr *)); 632 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 633 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 634 extern void in6_if_up __P((struct ifnet *)); 635 extern u_char ip6_protox[]; 636 637 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 638 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 639 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 640 #endif /* _KERNEL */ 641 642 __BEGIN_DECLS 643 struct cmsghdr; 644 645 extern int inet6_option_space __P((int)); 646 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 647 extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 648 int, int)); 649 extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 650 extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 651 extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, int)); 652 653 extern size_t inet6_rthdr_space __P((int, int)); 654 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 655 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 656 unsigned int)); 657 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 658 #if 0 /* not implemented yet */ 659 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 660 #endif 661 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 662 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 663 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 664 __END_DECLS 665 666 #endif /* !_NETINET6_IN6_H_ */ 667
Indexes created Fri Sep 26 20:09:58 GMT 2025