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 * $FreeBSD$ 64 */ 65 66 #ifndef _NETINET6_IN6_H_ 67 #define _NETINET6_IN6_H_ 68 69 #if !defined(_KERNEL) && !defined(__KAME_NETINET_IN_H_INCLUDED_) 70 #error "do not include netinet6/in6.h directly, include netinet/in.h" 71 #endif 72 73 #if !defined(_XOPEN_SOURCE) 74 #include <sys/queue.h> 75 #endif 76 77 /* 78 * Identification of the network protocol stack 79 */ 80 #define __KAME__ 81 #define __KAME_VERSION "SNAP 19991101" 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_ANONMIX 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 #define IPV6PORT_RESERVED 1024 112 #define IPV6PORT_ANONMIN 49152 113 #define IPV6PORT_ANONMAX 65535 114 #define IPV6PORT_RESERVEDMIN 600 115 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 116 117 /* 118 * IPv6 address 119 */ 120 struct in6_addr { 121 union { 122 u_int8_t __u6_addr8[16]; 123 u_int16_t __u6_addr16[8]; 124 u_int32_t __u6_addr32[4]; 125 } __u6_addr; /* 128-bit IP6 address */ 126 }; 127 128 #define s6_addr __u6_addr.__u6_addr8 129 #ifdef _KERNEL /*XXX nonstandard*/ 130 #define s6_addr8 __u6_addr.__u6_addr8 131 #define s6_addr16 __u6_addr.__u6_addr16 132 #define s6_addr32 __u6_addr.__u6_addr32 133 #endif 134 135 #define INET6_ADDRSTRLEN 46 136 137 /* 138 * Socket address for IPv6 139 */ 140 #if !defined(_XOPEN_SOURCE) 141 #define SIN6_LEN 142 #endif 143 struct sockaddr_in6 { 144 u_char sin6_len; /* length of this struct(sa_family_t)*/ 145 u_char sin6_family; /* AF_INET6 (sa_family_t) */ 146 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 147 u_int32_t sin6_flowinfo; /* IP6 flow information */ 148 struct in6_addr sin6_addr; /* IP6 address */ 149 u_int32_t sin6_scope_id; /* intface scope id */ 150 }; 151 152 /* 153 * Local definition for masks 154 */ 155 #ifdef _KERNEL /*XXX nonstandard*/ 156 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 157 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 158 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 159 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 160 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 161 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 162 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 163 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 164 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 165 #endif 166 167 #ifdef _KERNEL 168 extern const struct in6_addr in6mask0; 169 extern const struct in6_addr in6mask32; 170 extern const struct in6_addr in6mask64; 171 extern const struct in6_addr in6mask96; 172 extern const struct in6_addr in6mask128; 173 #endif /* _KERNEL */ 174 175 /* 176 * Macros started with IPV6_ADDR is KAME local 177 */ 178 #ifdef _KERNEL /*XXX nonstandard*/ 179 #if BYTE_ORDER == BIG_ENDIAN 180 #define IPV6_ADDR_INT32_ONE 1 181 #define IPV6_ADDR_INT32_TWO 2 182 #define IPV6_ADDR_INT32_MNL 0xff010000 183 #define IPV6_ADDR_INT32_MLL 0xff020000 184 #define IPV6_ADDR_INT32_SMP 0x0000ffff 185 #define IPV6_ADDR_INT16_ULL 0xfe80 186 #define IPV6_ADDR_INT16_USL 0xfec0 187 #define IPV6_ADDR_INT16_MLL 0xff02 188 #elif BYTE_ORDER == LITTLE_ENDIAN 189 #define IPV6_ADDR_INT32_ONE 0x01000000 190 #define IPV6_ADDR_INT32_TWO 0x02000000 191 #define IPV6_ADDR_INT32_MNL 0x000001ff 192 #define IPV6_ADDR_INT32_MLL 0x000002ff 193 #define IPV6_ADDR_INT32_SMP 0xffff0000 194 #define IPV6_ADDR_INT16_ULL 0x80fe 195 #define IPV6_ADDR_INT16_USL 0xc0fe 196 #define IPV6_ADDR_INT16_MLL 0x02ff 197 #endif 198 #endif 199 200 /* 201 * Definition of some useful macros to handle IP6 addresses 202 */ 203 #define IN6ADDR_ANY_INIT \ 204 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 206 #define IN6ADDR_LOOPBACK_INIT \ 207 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 208 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 209 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 210 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 212 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 213 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 215 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 216 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 217 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 218 219 extern const struct in6_addr in6addr_any; 220 extern const struct in6_addr in6addr_loopback; 221 extern const struct in6_addr in6addr_nodelocal_allnodes; 222 extern const struct in6_addr in6addr_linklocal_allnodes; 223 extern const struct in6_addr in6addr_linklocal_allrouters; 224 225 /* 226 * Equality 227 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 228 * does not supply memcmp(). For userland memcmp() is preferred as it is 229 * in ANSI standard. 230 */ 231 #ifdef _KERNEL 232 #define IN6_ARE_ADDR_EQUAL(a, b) \ 233 (bcmp((a), (b), sizeof(struct in6_addr)) == 0) 234 #else 235 #define IN6_ARE_ADDR_EQUAL(a, b) \ 236 (memcmp((a), (b), sizeof(struct in6_addr)) == 0) 237 #endif 238 239 /* 240 * Unspecified 241 */ 242 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 243 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 244 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 245 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 246 (*(u_int32_t *)(&(a)->s6_addr[12]) == 0)) 247 248 /* 249 * Loopback 250 */ 251 #define IN6_IS_ADDR_LOOPBACK(a) \ 252 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 253 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 254 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 255 (*(u_int32_t *)(&(a)->s6_addr[12]) == ntohl(1))) 256 257 /* 258 * IPv4 compatible 259 */ 260 #define IN6_IS_ADDR_V4COMPAT(a) \ 261 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 262 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 263 (*(u_int32_t *)(&(a)->s6_addr[8]) == 0) && \ 264 (*(u_int32_t *)(&(a)->s6_addr[12]) != 0) && \ 265 (*(u_int32_t *)(&(a)->s6_addr[12]) != ntohl(1))) 266 267 /* 268 * Mapped 269 */ 270 #define IN6_IS_ADDR_V4MAPPED(a) \ 271 ((*(u_int32_t *)(&(a)->s6_addr[0]) == 0) && \ 272 (*(u_int32_t *)(&(a)->s6_addr[4]) == 0) && \ 273 (*(u_int32_t *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 274 275 /* 276 * KAME Scope Values 277 */ 278 279 #ifdef _KERNEL /*XXX nonstandard*/ 280 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 281 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 282 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 283 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 284 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 285 #else 286 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 287 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 288 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 289 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 290 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 291 #endif 292 293 /* 294 * Unicast Scope 295 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 296 */ 297 #define IN6_IS_ADDR_LINKLOCAL(a) \ 298 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 299 #define IN6_IS_ADDR_SITELOCAL(a) \ 300 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 301 302 /* 303 * Multicast 304 */ 305 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 306 307 #ifdef _KERNEL /*XXX nonstandard*/ 308 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 309 #else 310 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 311 #endif 312 313 /* 314 * Multicast Scope 315 */ 316 #ifdef _KERNEL /*refers nonstandard items */ 317 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 318 (IN6_IS_ADDR_MULTICAST(a) && \ 319 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 320 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 321 (IN6_IS_ADDR_MULTICAST(a) && \ 322 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 323 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 324 (IN6_IS_ADDR_MULTICAST(a) && \ 325 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 326 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 327 (IN6_IS_ADDR_MULTICAST(a) && \ 328 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 329 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 330 (IN6_IS_ADDR_MULTICAST(a) && \ 331 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 332 #else 333 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 336 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 339 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 340 (IN6_IS_ADDR_MULTICAST(a) && \ 341 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 342 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 343 (IN6_IS_ADDR_MULTICAST(a) && \ 344 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 345 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 346 (IN6_IS_ADDR_MULTICAST(a) && \ 347 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 348 #endif 349 350 /* 351 * KAME Scope 352 */ 353 #ifdef _KERNEL /*nonstandard*/ 354 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 355 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 356 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 357 #endif 358 359 /* 360 * IP6 route structure 361 */ 362 #if !defined(_XOPEN_SOURCE) 363 struct route_in6 { 364 struct rtentry *ro_rt; 365 struct sockaddr_in6 ro_dst; 366 }; 367 #endif 368 369 /* 370 * Options for use with [gs]etsockopt at the IPV6 level. 371 * First word of comment is data type; bool is stored in int. 372 */ 373 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 374 /* no hdrincl */ 375 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 376 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 377 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 378 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 379 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 380 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 381 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 382 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 383 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 384 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 385 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 386 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 387 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 388 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 389 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 390 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 391 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 392 #define IPV6_DSTOPTS 23 /* bool; destination option */ 393 #define IPV6_RTHDR 24 /* bool; routing header */ 394 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 395 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 396 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 397 398 /* for IPsec */ 399 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 400 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 401 402 /* for IPV6FIREWALL */ 403 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 404 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 405 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 406 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 407 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 408 409 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 410 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 411 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 412 413 /* 414 * Defaults and limits for options 415 */ 416 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 417 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 418 419 /* 420 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 421 */ 422 struct ipv6_mreq { 423 struct in6_addr ipv6mr_multiaddr; 424 u_int ipv6mr_interface; 425 }; 426 427 /* 428 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 429 */ 430 struct in6_pktinfo { 431 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 432 u_int ipi6_ifindex; /* send/recv interface index */ 433 }; 434 435 /* 436 * Argument for IPV6_PORTRANGE: 437 * - which range to search when port is unspecified at bind() or connect() 438 */ 439 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 440 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 441 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 442 443 #if !defined(_XOPEN_SOURCE) 444 /* 445 * Definitions for inet6 sysctl operations. 446 * 447 * Third level is protocol number. 448 * Fourth level is desired variable within that protocol. 449 */ 450 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 451 452 #define CTL_IPV6PROTO_NAMES { \ 453 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 454 { 0, 0 }, \ 455 { "tcp6", CTLTYPE_NODE }, \ 456 { 0, 0 }, \ 457 { 0, 0 }, \ 458 { 0, 0 }, \ 459 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 460 { 0, 0 }, \ 461 { 0, 0 }, \ 462 { "udp6", CTLTYPE_NODE }, \ 463 { 0, 0 }, \ 464 { 0, 0 }, \ 465 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 466 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 467 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 468 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 469 { 0, 0 }, \ 470 { "ip6", CTLTYPE_NODE }, \ 471 { 0, 0 }, \ 472 { 0, 0 }, \ 473 { 0, 0 }, \ 474 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 475 { 0, 0 }, \ 476 { "ipsec6", CTLTYPE_NODE }, \ 477 { 0, 0 }, \ 478 { 0, 0 }, \ 479 { 0, 0 }, \ 480 { 0, 0 }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { "icmp6", CTLTYPE_NODE }, \ 484 { 0, 0 }, \ 485 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 486 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 487 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 488 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 489 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 490 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 491 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 492 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 493 { 0, 0 }, \ 494 { 0, 0 }, \ 495 { 0, 0 }, \ 496 { "pim6", CTLTYPE_NODE }, \ 497 } 498 499 /* 500 * Names for IP sysctl objects 501 */ 502 #define IPV6CTL_FORWARDING 1 /* act as router */ 503 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 504 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 505 #ifdef notyet 506 #define IPV6CTL_DEFMTU 4 /* default MTU */ 507 #endif 508 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 509 #define IPV6CTL_STATS 6 /* stats */ 510 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 511 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 512 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 513 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 514 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 515 #define IPV6CTL_ACCEPT_RTADV 12 516 #define IPV6CTL_KEEPFAITH 13 517 #define IPV6CTL_LOG_INTERVAL 14 518 #define IPV6CTL_HDRNESTLIMIT 15 519 #define IPV6CTL_DAD_COUNT 16 520 #define IPV6CTL_AUTO_FLOWLABEL 17 521 #define IPV6CTL_DEFMCASTHLIM 18 522 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 523 #define IPV6CTL_KAME_VERSION 20 524 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 525 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 526 #define IPV6CTL_MAPPED_ADDR 23 527 /* New entries should be added here from current IPV6CTL_MAXID value. */ 528 #define IPV6CTL_MAXID 24 529 #endif /* !_XOPEN_SOURCE */ 530 531 /* 532 * Redefinition of mbuf flags 533 */ 534 #define M_ANYCAST6 M_PROTO1 535 #define M_AUTHIPHDR M_PROTO2 536 #define M_DECRYPTED M_PROTO3 537 #define M_LOOP M_PROTO4 538 #define M_AUTHIPDGM M_PROTO5 539 540 #ifdef _KERNEL 541 struct cmsghdr; 542 struct mbuf; 543 struct ifnet; 544 545 int in6_canforward __P((struct in6_addr *, struct in6_addr *)); 546 int in6_cksum __P((struct mbuf *, u_int8_t, int, int)); 547 int in6_localaddr __P((struct in6_addr *)); 548 int in6_addrscope __P((struct in6_addr *)); 549 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 550 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 551 extern void in6_if_up __P((struct ifnet *)); 552 struct sockaddr; 553 554 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 555 struct sockaddr_in6 *sin6)); 556 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 557 struct sockaddr_in6 *sin6)); 558 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 559 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 560 561 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 562 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 563 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 564 #endif /* _KERNEL */ 565 566 __BEGIN_DECLS 567 struct cmsghdr; 568 569 extern int inet6_option_space __P((int)); 570 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 571 extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *, 572 int, int)); 573 extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 574 extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **)); 575 extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, 576 int)); 577 578 extern size_t inet6_rthdr_space __P((int, int)); 579 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 580 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 581 u_int)); 582 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, u_int)); 583 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 584 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 585 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 586 __END_DECLS 587 588 #endif /* !_NETINET6_IN6_H_ */ 589