| 1 | /* $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.7 2002/08/01 19:38:50 ume Exp $ */ |
| 2 | /* $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun 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. Neither the name of the University nor the names of its contributors |
| 46 | * may be used to endorse or promote products derived from this software |
| 47 | * without specific prior written permission. |
| 48 | * |
| 49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 52 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 53 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 54 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 55 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 56 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 59 | * SUCH DAMAGE. |
| 60 | * |
| 61 | * @(#)in.h 8.3 (Berkeley) 1/3/94 |
| 62 | */ |
| 63 | |
| 64 | #ifndef __KAME_NETINET_IN_H_INCLUDED_ |
| 65 | #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" |
| 66 | #endif |
| 67 | |
| 68 | #ifndef _NETINET6_IN6_H_ |
| 69 | #define _NETINET6_IN6_H_ |
| 70 | |
| 71 | /* |
| 72 | * Identification of the network protocol stack |
| 73 | * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE |
| 74 | * has the table of implementation/integration differences. |
| 75 | */ |
| 76 | #define __KAME__ |
| 77 | #define __KAME_VERSION "20010528/FreeBSD" |
| 78 | |
| 79 | #ifndef _SOCKLEN_T_DECLARED |
| 80 | #define _SOCKLEN_T_DECLARED |
| 81 | typedef __socklen_t socklen_t; |
| 82 | #endif |
| 83 | |
| 84 | /* |
| 85 | * Local port number conventions: |
| 86 | * |
| 87 | * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), |
| 88 | * unless a kernel is compiled with IPNOPRIVPORTS defined. |
| 89 | * |
| 90 | * When a user does a bind(2) or connect(2) with a port number of zero, |
| 91 | * a non-conflicting local port address is chosen. |
| 92 | * |
| 93 | * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although |
| 94 | * that is settable by sysctl(3); net.inet.ip.anonportmin and |
| 95 | * net.inet.ip.anonportmax respectively. |
| 96 | * |
| 97 | * A user may set the IPPROTO_IP option IP_PORTRANGE to change this |
| 98 | * default assignment range. |
| 99 | * |
| 100 | * The value IP_PORTRANGE_DEFAULT causes the default behavior. |
| 101 | * |
| 102 | * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, |
| 103 | * and exists only for FreeBSD compatibility purposes. |
| 104 | * |
| 105 | * The value IP_PORTRANGE_LOW changes the range to the "low" are |
| 106 | * that is (by convention) restricted to privileged processes. |
| 107 | * This convention is based on "vouchsafe" principles only. |
| 108 | * It is only secure if you trust the remote host to restrict these ports. |
| 109 | * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. |
| 110 | */ |
| 111 | |
| 112 | #define IPV6PORT_RESERVED 1024 |
| 113 | #define IPV6PORT_ANONMIN 49152 |
| 114 | #define IPV6PORT_ANONMAX 65535 |
| 115 | #define IPV6PORT_RESERVEDMIN 600 |
| 116 | #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) |
| 117 | |
| 118 | /* |
| 119 | * IPv6 address |
| 120 | */ |
| 121 | #ifndef _STRUCT_IN6_ADDR_DECLARED |
| 122 | struct in6_addr { |
| 123 | union { |
| 124 | uint8_t __u6_addr8[16]; |
| 125 | uint16_t __u6_addr16[8]; |
| 126 | uint32_t __u6_addr32[4]; |
| 127 | } __u6_addr; /* 128-bit IP6 address */ |
| 128 | }; |
| 129 | #define _STRUCT_IN6_ADDR_DECLARED |
| 130 | #endif |
| 131 | |
| 132 | #define s6_addr __u6_addr.__u6_addr8 |
| 133 | #define _s6_addr16 __u6_addr.__u6_addr16 /* internal use */ |
| 134 | #define _s6_addr32 __u6_addr.__u6_addr32 /* internal use */ |
| 135 | #if __BSD_VISIBLE /* XXX nonstandard */ |
| 136 | #define s6_addr8 __u6_addr.__u6_addr8 |
| 137 | #define s6_addr16 __u6_addr.__u6_addr16 |
| 138 | #define s6_addr32 __u6_addr.__u6_addr32 |
| 139 | #endif |
| 140 | |
| 141 | #define INET6_ADDRSTRLEN 46 |
| 142 | |
| 143 | /* |
| 144 | * Socket address for IPv6 |
| 145 | */ |
| 146 | #ifndef _XOPEN_SOURCE |
| 147 | #define SIN6_LEN |
| 148 | #endif |
| 149 | struct sockaddr_in6 { |
| 150 | uint8_t sin6_len; /* length of this struct(sa_family_t)*/ |
| 151 | sa_family_t sin6_family; /* AF_INET6 */ |
| 152 | uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ |
| 153 | uint32_t sin6_flowinfo; /* IP6 flow information */ |
| 154 | struct in6_addr sin6_addr; /* IP6 address */ |
| 155 | uint32_t sin6_scope_id; /* scope zone index */ |
| 156 | }; |
| 157 | |
| 158 | /* |
| 159 | * Local definition for masks |
| 160 | */ |
| 161 | #ifdef _KERNEL /* XXX nonstandard */ |
| 162 | #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} |
| 163 | #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ |
| 164 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
| 165 | #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ |
| 166 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
| 167 | #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ |
| 168 | 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} |
| 169 | #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ |
| 170 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} |
| 171 | #endif |
| 172 | |
| 173 | #ifdef _KERNEL |
| 174 | extern const struct sockaddr_in6 sa6_any; |
| 175 | |
| 176 | extern const struct in6_addr in6mask0; |
| 177 | extern const struct in6_addr in6mask32; |
| 178 | extern const struct in6_addr in6mask64; |
| 179 | extern const struct in6_addr in6mask96; |
| 180 | extern const struct in6_addr in6mask128; |
| 181 | #endif /* _KERNEL */ |
| 182 | |
| 183 | /* |
| 184 | * Macros started with IPV6_ADDR is KAME local |
| 185 | */ |
| 186 | #if BYTE_ORDER == BIG_ENDIAN |
| 187 | #define _IPV6_ADDR_INT16_UL_MASK 0xffc0 |
| 188 | #define _IPV6_ADDR_INT16_ULL 0xfe80 |
| 189 | #define _IPV6_ADDR_INT16_USL 0xfec0 |
| 190 | #else |
| 191 | #define _IPV6_ADDR_INT16_UL_MASK 0xc0ff |
| 192 | #define _IPV6_ADDR_INT16_ULL 0x80fe |
| 193 | #define _IPV6_ADDR_INT16_USL 0xc0fe |
| 194 | #endif |
| 195 | |
| 196 | #ifdef _KERNEL /* XXX nonstandard */ |
| 197 | #if BYTE_ORDER == BIG_ENDIAN |
| 198 | #define IPV6_ADDR_INT32_ONE 1 |
| 199 | #define IPV6_ADDR_INT32_TWO 2 |
| 200 | #define IPV6_ADDR_INT32_MNL 0xff010000 |
| 201 | #define IPV6_ADDR_INT32_MLL 0xff020000 |
| 202 | #define IPV6_ADDR_INT32_SMP 0x0000ffff |
| 203 | #define IPV6_ADDR_INT16_MLL 0xff02 |
| 204 | #elif BYTE_ORDER == LITTLE_ENDIAN |
| 205 | #define IPV6_ADDR_INT32_ONE 0x01000000 |
| 206 | #define IPV6_ADDR_INT32_TWO 0x02000000 |
| 207 | #define IPV6_ADDR_INT32_MNL 0x000001ff |
| 208 | #define IPV6_ADDR_INT32_MLL 0x000002ff |
| 209 | #define IPV6_ADDR_INT32_SMP 0xffff0000 |
| 210 | #define IPV6_ADDR_INT16_MLL 0x02ff |
| 211 | #endif |
| 212 | #define IPV6_ADDR_INT16_ULL _IPV6_ADDR_INT16_ULL |
| 213 | #define IPV6_ADDR_INT16_USL _IPV6_ADDR_INT16_USL |
| 214 | #endif |
| 215 | |
| 216 | /* |
| 217 | * Definition of some useful macros to handle IP6 addresses |
| 218 | */ |
| 219 | #define IN6ADDR_ANY_INIT \ |
| 220 | {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 221 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} |
| 222 | #define IN6ADDR_LOOPBACK_INIT \ |
| 223 | {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 224 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
| 225 | #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ |
| 226 | {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 227 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
| 228 | #define IN6ADDR_INTFACELOCAL_ALLNODES_INIT \ |
| 229 | {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 230 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
| 231 | #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ |
| 232 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 233 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} |
| 234 | #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ |
| 235 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 236 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} |
| 237 | #define IN6ADDR_LINKLOCAL_ALLMDNS_INIT \ |
| 238 | {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 239 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb }}} |
| 240 | |
| 241 | #ifdef _KERNEL |
| 242 | extern const struct in6_addr kin6addr_any; |
| 243 | extern const struct in6_addr kin6addr_loopback; |
| 244 | extern const struct in6_addr kin6addr_nodelocal_allnodes; |
| 245 | extern const struct in6_addr kin6addr_linklocal_allnodes; |
| 246 | extern const struct in6_addr kin6addr_linklocal_allrouters; |
| 247 | #else |
| 248 | extern const struct in6_addr in6addr_any; |
| 249 | extern const struct in6_addr in6addr_loopback; |
| 250 | extern const struct in6_addr in6addr_nodelocal_allnodes; |
| 251 | extern const struct in6_addr in6addr_linklocal_allnodes; |
| 252 | #endif |
| 253 | |
| 254 | #define IN6_ARE_ADDR_EQUAL(a, b) \ |
| 255 | (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) |
| 256 | |
| 257 | #ifdef _KERNEL /* non standard */ |
| 258 | /* see if two addresses are equal in a scope-conscious manner. */ |
| 259 | #define SA6_ARE_ADDR_EQUAL(a, b) \ |
| 260 | (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ |
| 261 | (a)->sin6_scope_id == (b)->sin6_scope_id) && \ |
| 262 | (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) |
| 263 | #endif |
| 264 | |
| 265 | /* |
| 266 | * Unspecified |
| 267 | */ |
| 268 | #define IN6_IS_ADDR_UNSPECIFIED(a) \ |
| 269 | ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ |
| 270 | (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == 0) |
| 271 | |
| 272 | /* |
| 273 | * Loopback |
| 274 | */ |
| 275 | #define IN6_IS_ADDR_LOOPBACK(a) \ |
| 276 | ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ |
| 277 | (a)->_s6_addr32[2] == 0 && (a)->_s6_addr32[3] == ntohl(1)) |
| 278 | |
| 279 | /* |
| 280 | * Mapped |
| 281 | */ |
| 282 | #define IN6_IS_ADDR_V4MAPPED(a) \ |
| 283 | ((a)->_s6_addr32[0] == 0 && (a)->_s6_addr32[1] == 0 && \ |
| 284 | (a)->_s6_addr32[2] == ntohl(0x0000ffff)) |
| 285 | |
| 286 | /* |
| 287 | * IPv4 compatible. Deprecated by RFC4291. |
| 288 | */ |
| 289 | #define IN6_IS_ADDR_V4COMPAT(a) \ |
| 290 | ((a)->_s6_addr32[0] == 0 && \ |
| 291 | (a)->_s6_addr32[1] == 0 && \ |
| 292 | (a)->_s6_addr32[2] == 0 && \ |
| 293 | (a)->_s6_addr32[3] != 0 && (a)->_s6_addr32[3] != ntohl(1)) |
| 294 | |
| 295 | /* |
| 296 | * KAME Scope Values |
| 297 | */ |
| 298 | |
| 299 | #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 |
| 300 | #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 |
| 301 | #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 |
| 302 | #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 |
| 303 | #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ |
| 304 | #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e |
| 305 | |
| 306 | #ifdef _KERNEL /* XXX nonstandard */ |
| 307 | #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 |
| 308 | #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 |
| 309 | #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 |
| 310 | #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 |
| 311 | #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ |
| 312 | #define IPV6_ADDR_SCOPE_GLOBAL 0x0e |
| 313 | #endif |
| 314 | |
| 315 | /* |
| 316 | * Unicast Scope |
| 317 | * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). |
| 318 | */ |
| 319 | #define IN6_IS_ADDR_LINKLOCAL(a) \ |
| 320 | (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_ULL) |
| 321 | #define IN6_IS_ADDR_SITELOCAL(a) \ |
| 322 | (((a)->_s6_addr16[0] & _IPV6_ADDR_INT16_UL_MASK) == _IPV6_ADDR_INT16_USL) |
| 323 | |
| 324 | /* |
| 325 | * Multicast |
| 326 | */ |
| 327 | #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) |
| 328 | #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) |
| 329 | #ifdef _KERNEL /* XXX nonstandard */ |
| 330 | #define IPV6_ADDR_MC_SCOPE(a) __IPV6_ADDR_MC_SCOPE(a) |
| 331 | #endif |
| 332 | |
| 333 | /* |
| 334 | * Multicast Scope |
| 335 | */ |
| 336 | #define IN6_IS_ADDR_MC_NODELOCAL(a) \ |
| 337 | (IN6_IS_ADDR_MULTICAST(a) && \ |
| 338 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) |
| 339 | |
| 340 | #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ |
| 341 | (IN6_IS_ADDR_MULTICAST(a) && \ |
| 342 | (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) |
| 343 | |
| 344 | #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ |
| 345 | (IN6_IS_ADDR_MULTICAST(a) && \ |
| 346 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) |
| 347 | |
| 348 | #define IN6_IS_ADDR_MC_SITELOCAL(a) \ |
| 349 | (IN6_IS_ADDR_MULTICAST(a) && \ |
| 350 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) |
| 351 | |
| 352 | #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ |
| 353 | (IN6_IS_ADDR_MULTICAST(a) && \ |
| 354 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) |
| 355 | |
| 356 | #define IN6_IS_ADDR_MC_GLOBAL(a) \ |
| 357 | (IN6_IS_ADDR_MULTICAST(a) && \ |
| 358 | (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) |
| 359 | |
| 360 | #ifdef _KERNEL /* nonstandard */ |
| 361 | /* |
| 362 | * KAME Scope |
| 363 | */ |
| 364 | #define IN6_IS_SCOPE_LINKLOCAL(a) \ |
| 365 | (IN6_IS_ADDR_LINKLOCAL(a) || IN6_IS_ADDR_MC_LINKLOCAL(a)) |
| 366 | #define IN6_IS_SCOPE_EMBED(a) \ |
| 367 | ((IN6_IS_ADDR_LINKLOCAL(a)) || \ |
| 368 | (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \ |
| 369 | (IN6_IS_ADDR_MC_INTFACELOCAL(a))) |
| 370 | |
| 371 | |
| 372 | #define IFA6_IS_DEPRECATED(a) \ |
| 373 | ((a)->ia6_lifetime.ia6t_preferred != 0 && \ |
| 374 | (a)->ia6_lifetime.ia6t_preferred < time_uptime) |
| 375 | |
| 376 | #define IFA6_IS_INVALID(a) \ |
| 377 | ((a)->ia6_lifetime.ia6t_expire != 0 && \ |
| 378 | (a)->ia6_lifetime.ia6t_expire < time_uptime) |
| 379 | #endif |
| 380 | |
| 381 | /* |
| 382 | * IP6 route structure |
| 383 | */ |
| 384 | #ifndef _XOPEN_SOURCE |
| 385 | struct route_in6 { |
| 386 | struct rtentry *ro_rt; |
| 387 | struct sockaddr_in6 ro_dst; |
| 388 | }; |
| 389 | #endif |
| 390 | |
| 391 | /* |
| 392 | * Options for use with [gs]etsockopt at the IPV6 level. |
| 393 | * First word of comment is data type; bool is stored in int. |
| 394 | */ |
| 395 | /* no hdrincl */ |
| 396 | #if 0 /* the followings are relic in IPv4 and hence are disabled */ |
| 397 | #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ |
| 398 | #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ |
| 399 | #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ |
| 400 | #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ |
| 401 | #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ |
| 402 | #endif |
| 403 | #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ |
| 404 | #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ |
| 405 | #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ |
| 406 | #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ |
| 407 | #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ |
| 408 | #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ |
| 409 | #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ |
| 410 | #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ |
| 411 | #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ |
| 412 | /* RFC2292 options */ |
| 413 | #ifdef _KERNEL |
| 414 | #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ |
| 415 | #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ |
| 416 | #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ |
| 417 | #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ |
| 418 | #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ |
| 419 | #define IPV6_2292RTHDR 24 /* bool; routing header */ |
| 420 | #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ |
| 421 | #endif |
| 422 | |
| 423 | #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ |
| 424 | #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ |
| 425 | #ifndef _KERNEL |
| 426 | #define IPV6_BINDV6ONLY IPV6_V6ONLY |
| 427 | #endif |
| 428 | |
| 429 | #if 1 /* IPV6FIREWALL */ |
| 430 | #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ |
| 431 | #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ |
| 432 | #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ |
| 433 | #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ |
| 434 | #define IPV6_FW_GET 34 /* get entire firewall rule chain */ |
| 435 | #endif |
| 436 | |
| 437 | /* |
| 438 | * new socket options introduced in RFC3542 |
| 439 | */ |
| 440 | #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ |
| 441 | #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ |
| 442 | #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ |
| 443 | #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ |
| 444 | #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ |
| 445 | #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ |
| 446 | #ifdef _KERNEL |
| 447 | #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ |
| 448 | #endif |
| 449 | #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ |
| 450 | #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ |
| 451 | |
| 452 | /* mtuinfo; get the current path MTU (sopt), |
| 453 | * 4 bytes int; MTU notification (cmsg) |
| 454 | */ |
| 455 | #define IPV6_PATHMTU 44 |
| 456 | #if 0 /*obsoleted during 2292bis -> 3542*/ |
| 457 | #define IPV6_REACHCONF 45 /* no data; ND reachability confirm |
| 458 | (cmsg only/not in of RFC3542) */ |
| 459 | #endif |
| 460 | #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ |
| 461 | #define IPV6_HOPLIMIT 47 /* int; send hop limit */ |
| 462 | #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ |
| 463 | #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ |
| 464 | #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ |
| 465 | #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ |
| 466 | #define IPV6_PKTOPTIONS 52 /* buf/cmsghdr; set/get IPv6 options, this is obsoleted by RFC3542 */ |
| 467 | |
| 468 | #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ |
| 469 | |
| 470 | #define IPV6_AUTOFLOWLABEL 59 /* bool; attach flowlabel automagically */ |
| 471 | |
| 472 | #define IPV6_TCLASS 61 /* int; send traffic class value */ |
| 473 | #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ |
| 474 | |
| 475 | #define IPV6_PREFER_TEMPADDR 63 /* int; prefer temporary addresses as |
| 476 | * the source address. |
| 477 | */ |
| 478 | /* |
| 479 | * The following option is private; do not use it from user applications. |
| 480 | * It is deliberately defined to the same value as IP_MSFILTER. |
| 481 | */ |
| 482 | #define IPV6_MSFILTER 74 /* struct __msfilterreq; |
| 483 | * set/get multicast source filter list. |
| 484 | */ |
| 485 | /* to define items, should talk with KAME guys first, for *BSD compatibility */ |
| 486 | |
| 487 | #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ |
| 488 | #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ |
| 489 | #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ |
| 490 | |
| 491 | /* |
| 492 | * Defaults and limits for options |
| 493 | */ |
| 494 | #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ |
| 495 | #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ |
| 496 | |
| 497 | /* |
| 498 | * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. |
| 499 | */ |
| 500 | struct ipv6_mreq { |
| 501 | struct in6_addr ipv6mr_multiaddr; |
| 502 | unsigned int ipv6mr_interface; |
| 503 | }; |
| 504 | |
| 505 | /* |
| 506 | * IPV6_PKTINFO: Packet information(RFC2292 sec 5) |
| 507 | */ |
| 508 | struct in6_pktinfo { |
| 509 | struct in6_addr ipi6_addr; /* src/dst IPv6 address */ |
| 510 | unsigned int ipi6_ifindex; /* send/recv interface index */ |
| 511 | }; |
| 512 | |
| 513 | /* |
| 514 | * New Control structure for IPV6_RECVPATHMTU socket option introduced in RFC3542. |
| 515 | */ |
| 516 | struct ip6_mtuinfo { |
| 517 | struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ |
| 518 | uint32_t ip6m_mtu; |
| 519 | }; |
| 520 | |
| 521 | /* |
| 522 | * Argument for IPV6_PORTRANGE: |
| 523 | * - which range to search when port is unspecified at bind() or connect() |
| 524 | */ |
| 525 | #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ |
| 526 | #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ |
| 527 | #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ |
| 528 | |
| 529 | #ifndef _XOPEN_SOURCE |
| 530 | /* |
| 531 | * Definitions for inet6 sysctl operations. |
| 532 | * |
| 533 | * Third level is protocol number. |
| 534 | * Fourth level is desired variable within that protocol. |
| 535 | */ |
| 536 | #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ |
| 537 | |
| 538 | /* |
| 539 | * Names for IP sysctl objects |
| 540 | */ |
| 541 | #define IPV6CTL_FORWARDING 1 /* act as router */ |
| 542 | #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ |
| 543 | #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ |
| 544 | #ifdef notyet |
| 545 | #define IPV6CTL_DEFMTU 4 /* default MTU */ |
| 546 | #endif |
| 547 | #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ |
| 548 | #define IPV6CTL_STATS 6 /* stats */ |
| 549 | #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ |
| 550 | #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ |
| 551 | #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ |
| 552 | #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ |
| 553 | #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ |
| 554 | #define IPV6CTL_ACCEPT_RTADV 12 |
| 555 | #define IPV6CTL_LOG_INTERVAL 14 |
| 556 | #define IPV6CTL_HDRNESTLIMIT 15 |
| 557 | #define IPV6CTL_DAD_COUNT 16 |
| 558 | #define IPV6CTL_AUTO_FLOWLABEL 17 |
| 559 | #define IPV6CTL_DEFMCASTHLIM 18 |
| 560 | #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ |
| 561 | #define IPV6CTL_KAME_VERSION 20 |
| 562 | #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ |
| 563 | #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ |
| 564 | #if 0 /* obsolete */ |
| 565 | #define IPV6CTL_MAPPED_ADDR 23 |
| 566 | #define IPV6CTL_V6ONLY 24 |
| 567 | #endif |
| 568 | #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ |
| 569 | #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ |
| 570 | #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ |
| 571 | |
| 572 | #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ |
| 573 | #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ |
| 574 | #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ |
| 575 | #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ |
| 576 | #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ |
| 577 | |
| 578 | #define IPV6CTL_ADDRCTLPOLICY 38 /* get/set address selection policy */ |
| 579 | #define IPV6CTL_MINHLIM 39 /* minimum Hop-Limit */ |
| 580 | |
| 581 | #define IPV6CTL_MAXFRAGS 41 /* max fragments */ |
| 582 | |
| 583 | /* New entries should be added here from current IPV6CTL_MAXID value. */ |
| 584 | /* to define items, should talk with KAME guys first, for *BSD compatibility */ |
| 585 | |
| 586 | #define ICMPV6CTL_ND6_ONLINKNSRFC4861 47 |
| 587 | #define IPV6CTL_MAXID 48 |
| 588 | #endif /* !_XOPEN_SOURCE */ |
| 589 | |
| 590 | /* |
| 591 | * Redefinition of mbuf flags |
| 592 | */ |
| 593 | #define M_AUTHIPHDR M_PROTO2 |
| 594 | #define M_DECRYPTED M_PROTO3 |
| 595 | #define M_LOOP M_PROTO4 |
| 596 | #define M_AUTHIPDGM M_PROTO5 |
| 597 | |
| 598 | #ifdef _KERNEL |
| 599 | |
| 600 | struct ifnet; |
| 601 | struct mbuf; |
| 602 | struct sockaddr; |
| 603 | struct sockaddr_in; |
| 604 | struct sockaddr_in6; |
| 605 | |
| 606 | int in6_cksum (struct mbuf *, uint8_t, uint32_t, uint32_t); |
| 607 | int in6_localaddr (struct in6_addr *); |
| 608 | int in6_addrscope (struct in6_addr *); |
| 609 | struct in6_ifaddr *in6_ifawithscope (struct ifnet *, struct in6_addr *, struct ucred *); |
| 610 | struct in6_ifaddr *in6_ifawithifp (struct ifnet *, struct in6_addr *); |
| 611 | void in6_if_up (struct ifnet *); |
| 612 | |
| 613 | void addrsel_policy_init (void); |
| 614 | |
| 615 | #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) |
| 616 | #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) |
| 617 | #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) |
| 618 | #endif /* _KERNEL */ |
| 619 | |
| 620 | #include <sys/cdefs.h> /* for __BEGIN_DECLS and __END_DECLS */ |
| 621 | |
| 622 | __BEGIN_DECLS |
| 623 | struct cmsghdr; |
| 624 | |
| 625 | uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); |
| 626 | int inet6_option_append (struct cmsghdr *, const uint8_t *, int, int); |
| 627 | int inet6_option_find (const struct cmsghdr *, uint8_t **, int); |
| 628 | int inet6_option_init (void *, struct cmsghdr **, int); |
| 629 | int inet6_option_next (const struct cmsghdr *, uint8_t **); |
| 630 | int inet6_option_space (int); |
| 631 | |
| 632 | int inet6_opt_append (void *, socklen_t, int, uint8_t, socklen_t, uint8_t, void **); |
| 633 | int inet6_opt_find (void *, socklen_t, int, uint8_t, socklen_t *, void **); |
| 634 | int inet6_opt_finish (void *, socklen_t, int); |
| 635 | int inet6_opt_get_val (void *, int, void *, socklen_t); |
| 636 | int inet6_opt_init (void *, socklen_t); |
| 637 | int inet6_opt_next (void *, socklen_t, int, uint8_t *, socklen_t *, void **); |
| 638 | int inet6_opt_set_val (void *, int, void *, socklen_t); |
| 639 | |
| 640 | int inet6_rth_add (void *, const struct in6_addr *); |
| 641 | struct in6_addr *inet6_rth_getaddr (const void *, int); |
| 642 | void *inet6_rth_init (void *, socklen_t, int, int); |
| 643 | int inet6_rth_reverse (const void *, void *); |
| 644 | int inet6_rth_segments (const void *); |
| 645 | socklen_t inet6_rth_space (int, int); |
| 646 | |
| 647 | int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, |
| 648 | unsigned int); |
| 649 | struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); |
| 650 | int inet6_rthdr_getflags (const struct cmsghdr *, int); |
| 651 | struct cmsghdr *inet6_rthdr_init (void *, int); |
| 652 | int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); |
| 653 | int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); |
| 654 | int inet6_rthdr_segments (const struct cmsghdr *); |
| 655 | size_t inet6_rthdr_space (int, int); |
| 656 | __END_DECLS |
| 657 | |
| 658 | #endif /* !_NETINET6_IN6_H_ */ |