1 /* $NetBSD: in6.h,v 1.57 2006/10/31 00:29:30 cbiere Exp $ */ 2 /* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */ 3 4 /* 5 Copyright (c) 2011, Intel Corporation. All rights reserved.<BR> 6 This program and the accompanying materials are licensed and made available under 7 the terms and conditions of the BSD License that accompanies this distribution. 8 The full text of the license may be found at 9 http://opensource.org/licenses/bsd-license. 10 11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 */ 14 15 /* 16 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 17 * All rights reserved. 18 * 19 * Redistribution and use in source and binary forms, with or without 20 * modification, are permitted provided that the following conditions 21 * are met: 22 * 1. Redistributions of source code must retain the above copyright 23 * notice, this list of conditions and the following disclaimer. 24 * 2. Redistributions in binary form must reproduce the above copyright 25 * notice, this list of conditions and the following disclaimer in the 26 * documentation and/or other materials provided with the distribution. 27 * 3. Neither the name of the project nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 */ 43 44 /* 45 * Copyright (c) 1982, 1986, 1990, 1993 46 * The Regents of the University of California. All rights reserved. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. Neither the name of the University nor the names of its contributors 57 * may be used to endorse or promote products derived from this software 58 * without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 70 * SUCH DAMAGE. 71 * 72 * @(#)in.h 8.3 (Berkeley) 1/3/94 73 */ 74 75 #ifndef _NETINET6_IN6_H_ 76 #define _NETINET6_IN6_H_ 77 78 #ifndef __KAME_NETINET_IN_H_INCLUDED_ 79 #error "do not include netinet6/in6.h directly, include netinet/in.h. see RFC2553" 80 #endif 81 82 #include <sys/socket.h> 83 84 /* 85 * Identification of the network protocol stack 86 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 87 * has the table of implementation/integration differences. 88 */ 89 #define __KAME__ 90 #define __KAME_VERSION "NetBSD-current" 91 92 /* 93 * Local port number conventions: 94 * 95 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 96 * unless a kernel is compiled with IPNOPRIVPORTS defined. 97 * 98 * When a user does a bind(2) or connect(2) with a port number of zero, 99 * a non-conflicting local port address is chosen. 100 * 101 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 102 * that is settable by sysctl(3); net.inet.ip.anonportmin and 103 * net.inet.ip.anonportmax respectively. 104 * 105 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 106 * default assignment range. 107 * 108 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 109 * 110 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 111 * and exists only for FreeBSD compatibility purposes. 112 * 113 * The value IP_PORTRANGE_LOW changes the range to the "low" are 114 * that is (by convention) restricted to privileged processes. 115 * This convention is based on "vouchsafe" principles only. 116 * It is only secure if you trust the remote host to restrict these ports. 117 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 118 */ 119 120 #if defined(_NETBSD_SOURCE) 121 #define IPV6PORT_RESERVED 1024 122 #define IPV6PORT_ANONMIN 49152 123 #define IPV6PORT_ANONMAX 65535 124 #define IPV6PORT_RESERVEDMIN 600 125 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 126 #endif 127 128 /* 129 * IPv6 address 130 */ 131 struct in6_addr { 132 union { 133 __uint8_t __u6_addr8[16]; 134 __uint16_t __u6_addr16[8]; 135 uint32_t __u6_addr32[4]; 136 } __u6_addr; /* 128-bit IP6 address */ 137 }; 138 139 #define s6_addr __u6_addr.__u6_addr8 140 #ifdef _KERNEL /* XXX nonstandard */ 141 #define s6_addr8 __u6_addr.__u6_addr8 142 #define s6_addr16 __u6_addr.__u6_addr16 143 #define s6_addr32 __u6_addr.__u6_addr32 144 #endif 145 146 #define INET6_ADDRSTRLEN 46 147 148 /* 149 * Socket address for IPv6 150 */ 151 #if defined(_NETBSD_SOURCE) 152 #define SIN6_LEN 153 #endif 154 struct sockaddr_in6 { 155 uint8_t sin6_len; /* length of this struct(socklen_t)*/ 156 sa_family_t sin6_family; /* AF_INET6 (sa_family_t) */ 157 in_port_t sin6_port; /* Transport layer port */ 158 uint32_t sin6_flowinfo; /* IP6 flow information */ 159 struct in6_addr sin6_addr; /* IP6 address */ 160 uint32_t sin6_scope_id; /* scope zone index */ 161 }; 162 163 /* 164 * Local definition for masks 165 */ 166 #ifdef _KERNEL /* XXX nonstandard */ 167 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 168 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 169 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 170 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 171 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 172 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 173 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 174 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 175 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 176 #endif 177 178 #ifdef _KERNEL 179 extern const struct sockaddr_in6 sa6_any; 180 181 extern const struct in6_addr in6mask0; 182 extern const struct in6_addr in6mask32; 183 extern const struct in6_addr in6mask64; 184 extern const struct in6_addr in6mask96; 185 extern const struct in6_addr in6mask128; 186 #endif /* _KERNEL */ 187 188 /* 189 * Macros started with IPV6_ADDR is KAME local 190 */ 191 #ifdef _KERNEL /* XXX nonstandard */ 192 #if BYTE_ORDER == BIG_ENDIAN 193 #define IPV6_ADDR_INT32_ONE 1 194 #define IPV6_ADDR_INT32_TWO 2 195 #define IPV6_ADDR_INT32_MNL 0xff010000 196 #define IPV6_ADDR_INT32_MLL 0xff020000 197 #define IPV6_ADDR_INT32_SMP 0x0000ffff 198 #define IPV6_ADDR_INT16_ULL 0xfe80 199 #define IPV6_ADDR_INT16_USL 0xfec0 200 #define IPV6_ADDR_INT16_MLL 0xff02 201 #elif BYTE_ORDER == LITTLE_ENDIAN 202 #define IPV6_ADDR_INT32_ONE 0x01000000 203 #define IPV6_ADDR_INT32_TWO 0x02000000 204 #define IPV6_ADDR_INT32_MNL 0x000001ff 205 #define IPV6_ADDR_INT32_MLL 0x000002ff 206 #define IPV6_ADDR_INT32_SMP 0xffff0000 207 #define IPV6_ADDR_INT16_ULL 0x80fe 208 #define IPV6_ADDR_INT16_USL 0xc0fe 209 #define IPV6_ADDR_INT16_MLL 0x02ff 210 #endif 211 #endif 212 213 /* 214 * Definition of some useful macros to handle IP6 addresses 215 */ 216 #define IN6ADDR_ANY_INIT \ 217 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 218 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 219 #define IN6ADDR_LOOPBACK_INIT \ 220 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 221 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 222 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 223 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 224 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 225 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 226 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 227 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 228 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 229 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 230 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 231 232 extern const struct in6_addr in6addr_any; 233 extern const struct in6_addr in6addr_loopback; 234 extern const struct in6_addr in6addr_nodelocal_allnodes; 235 extern const struct in6_addr in6addr_linklocal_allnodes; 236 extern const struct in6_addr in6addr_linklocal_allrouters; 237 238 /* 239 * Equality 240 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 241 * does not supply memcmp(). For userland memcmp() is preferred as it is 242 * in ANSI standard. 243 */ 244 #ifdef _KERNEL 245 #define IN6_ARE_ADDR_EQUAL(a, b) \ 246 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 247 #else 248 #define IN6_ARE_ADDR_EQUAL(a, b) \ 249 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 250 #endif 251 252 /* 253 * Unspecified 254 */ 255 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 256 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 257 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 258 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 259 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 260 261 /* 262 * Loopback 263 */ 264 #define IN6_IS_ADDR_LOOPBACK(a) \ 265 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 266 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 267 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 268 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 269 270 /* 271 * IPv4 compatible 272 */ 273 #define IN6_IS_ADDR_V4COMPAT(a) \ 274 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 275 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 276 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 277 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 278 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 279 280 /* 281 * Mapped 282 */ 283 #define IN6_IS_ADDR_V4MAPPED(a) \ 284 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 285 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 286 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 287 288 /* 289 * KAME Scope Values 290 */ 291 292 #ifdef _KERNEL /* XXX nonstandard */ 293 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 294 #define IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 295 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 296 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 297 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 298 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 299 #else 300 #define __IPV6_ADDR_SCOPE_NODELOCAL 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 #endif 306 307 /* 308 * Unicast Scope 309 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 310 */ 311 #define IN6_IS_ADDR_LINKLOCAL(a) \ 312 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 313 #define IN6_IS_ADDR_SITELOCAL(a) \ 314 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 315 316 /* 317 * Multicast 318 */ 319 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 320 321 #ifdef _KERNEL /* XXX nonstandard */ 322 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 323 #else 324 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 325 #endif 326 327 /* 328 * Multicast Scope 329 */ 330 #ifdef _KERNEL /* refers nonstandard items */ 331 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 332 (IN6_IS_ADDR_MULTICAST(a) && \ 333 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 334 #define IN6_IS_ADDR_MC_INTFACELOCAL(a) \ 335 (IN6_IS_ADDR_MULTICAST(a) && \ 336 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL)) 337 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 338 (IN6_IS_ADDR_MULTICAST(a) && \ 339 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 340 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 343 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 346 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 349 #else 350 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 351 (IN6_IS_ADDR_MULTICAST(a) && \ 352 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 353 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 354 (IN6_IS_ADDR_MULTICAST(a) && \ 355 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 356 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 357 (IN6_IS_ADDR_MULTICAST(a) && \ 358 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 359 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 360 (IN6_IS_ADDR_MULTICAST(a) && \ 361 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 362 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 363 (IN6_IS_ADDR_MULTICAST(a) && \ 364 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 365 #endif 366 367 #ifdef _KERNEL /* nonstandard */ 368 /* 369 * KAME Scope 370 */ 371 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 372 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 373 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 374 375 #define IN6_IS_SCOPE_EMBEDDABLE(__a) \ 376 (IN6_IS_SCOPE_LINKLOCAL(__a) || IN6_IS_ADDR_MC_INTFACELOCAL(__a)) 377 378 #define IFA6_IS_DEPRECATED(a) \ 379 ((a)->ia6_lifetime.ia6t_pltime != ND6_INFINITE_LIFETIME && \ 380 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 381 (a)->ia6_lifetime.ia6t_pltime) 382 #define IFA6_IS_INVALID(a) \ 383 ((a)->ia6_lifetime.ia6t_vltime != ND6_INFINITE_LIFETIME && \ 384 (u_int32_t)((time_second - (a)->ia6_updatetime)) > \ 385 (a)->ia6_lifetime.ia6t_vltime) 386 #endif 387 388 /* 389 * IP6 route structure 390 */ 391 #if defined(_NETBSD_SOURCE) 392 struct route_in6 { 393 struct rtentry *ro_rt; 394 struct sockaddr_in6 ro_dst; 395 }; 396 #endif 397 398 /* 399 * Options for use with [gs]etsockopt at the IPV6 level. 400 * First word of comment is data type; bool is stored in int. 401 */ 402 /* no hdrincl */ 403 #if 0 404 /* These are deprecated non-standard options which are no longer supported. */ 405 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 406 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 407 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 408 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 409 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 410 #endif 411 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 412 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 413 #define IPV6_MULTICAST_IF 9 /* u_int; set/get IP6 multicast i/f */ 414 #define IPV6_MULTICAST_HOPS 10 /* int; set/get IP6 multicast hops */ 415 #define IPV6_MULTICAST_LOOP 11 /* u_int; set/get IP6 multicast loopback */ 416 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 417 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 418 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 419 #if defined(_NETBSD_SOURCE) 420 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 421 #endif 422 /* RFC2292 options */ 423 #ifdef _KERNEL 424 #define IPV6_2292PKTINFO 19 /* bool; send/recv if, src/dst addr */ 425 #define IPV6_2292HOPLIMIT 20 /* bool; hop limit */ 426 #define IPV6_2292NEXTHOP 21 /* bool; next hop addr */ 427 #define IPV6_2292HOPOPTS 22 /* bool; hop-by-hop option */ 428 #define IPV6_2292DSTOPTS 23 /* bool; destinaion option */ 429 #define IPV6_2292RTHDR 24 /* bool; routing header */ 430 #define IPV6_2292PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 431 #endif 432 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 433 #define IPV6_V6ONLY 27 /* bool; make AF_INET6 sockets v6 only */ 434 435 #if 1 /* IPSEC */ 436 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 437 #endif 438 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 439 440 /* new socket options introduced in RFC3542 */ 441 #define IPV6_RTHDRDSTOPTS 35 /* ip6_dest; send dst option before rthdr */ 442 443 #define IPV6_RECVPKTINFO 36 /* bool; recv if, dst addr */ 444 #define IPV6_RECVHOPLIMIT 37 /* bool; recv hop limit */ 445 #define IPV6_RECVRTHDR 38 /* bool; recv routing header */ 446 #define IPV6_RECVHOPOPTS 39 /* bool; recv hop-by-hop option */ 447 #define IPV6_RECVDSTOPTS 40 /* bool; recv dst option after rthdr */ 448 #ifdef _KERNEL 449 #define IPV6_RECVRTHDRDSTOPTS 41 /* bool; recv dst option before rthdr */ 450 #endif 451 #define IPV6_USE_MIN_MTU 42 /* bool; send packets at the minimum MTU */ 452 #define IPV6_RECVPATHMTU 43 /* bool; notify an according MTU */ 453 #define IPV6_PATHMTU 44 /* mtuinfo; get the current path MTU (sopt), 454 4 bytes int; MTU notification (cmsg) */ 455 456 /* more new socket options introduced in RFC3542 */ 457 #define IPV6_PKTINFO 46 /* in6_pktinfo; send if, src addr */ 458 #define IPV6_HOPLIMIT 47 /* int; send hop limit */ 459 #define IPV6_NEXTHOP 48 /* sockaddr; next hop addr */ 460 #define IPV6_HOPOPTS 49 /* ip6_hbh; send hop-by-hop option */ 461 #define IPV6_DSTOPTS 50 /* ip6_dest; send dst option befor rthdr */ 462 #define IPV6_RTHDR 51 /* ip6_rthdr; send routing header */ 463 464 #define IPV6_RECVTCLASS 57 /* bool; recv traffic class values */ 465 #ifdef _KERNEL 466 #define IPV6_OTCLASS 58 /* u_int8_t; send traffic class value */ 467 #endif 468 469 #define IPV6_TCLASS 61 /* int; send traffic class value */ 470 #define IPV6_DONTFRAG 62 /* bool; disable IPv6 fragmentation */ 471 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 472 473 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 474 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 475 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 476 477 /* 478 * Defaults and limits for options 479 */ 480 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 481 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 482 483 /* 484 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 485 */ 486 struct ipv6_mreq { 487 struct in6_addr ipv6mr_multiaddr; 488 unsigned int ipv6mr_interface; 489 }; 490 491 /* 492 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 493 */ 494 struct in6_pktinfo { 495 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 496 unsigned int ipi6_ifindex; /* send/recv interface index */ 497 }; 498 499 /* 500 * Control structure for IPV6_RECVPATHMTU socket option. 501 */ 502 struct ip6_mtuinfo { 503 struct sockaddr_in6 ip6m_addr; /* or sockaddr_storage? */ 504 uint32_t ip6m_mtu; 505 }; 506 507 /* 508 * Argument for IPV6_PORTRANGE: 509 * - which range to search when port is unspecified at bind() or connect() 510 */ 511 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 512 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 513 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 514 515 #if defined(_NETBSD_SOURCE) 516 /* 517 * Definitions for inet6 sysctl operations. 518 * 519 * Third level is protocol number. 520 * Fourth level is desired variable within that protocol. 521 */ 522 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 523 524 #define CTL_IPV6PROTO_NAMES { \ 525 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 526 { 0, 0 }, \ 527 { "tcp6", CTLTYPE_NODE }, \ 528 { 0, 0 }, \ 529 { 0, 0 }, \ 530 { 0, 0 }, \ 531 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 532 { 0, 0 }, \ 533 { 0, 0 }, \ 534 { "udp6", CTLTYPE_NODE }, \ 535 { 0, 0 }, \ 536 { 0, 0 }, \ 537 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 538 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 539 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 540 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 541 { 0, 0 }, \ 542 { "ip6", CTLTYPE_NODE }, \ 543 { 0, 0 }, \ 544 { 0, 0 }, \ 545 { 0, 0 }, \ 546 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 547 { 0, 0 }, \ 548 { "ipsec6", CTLTYPE_NODE }, \ 549 { 0, 0 }, \ 550 { 0, 0 }, \ 551 { 0, 0 }, \ 552 { 0, 0 }, \ 553 { 0, 0 }, \ 554 { 0, 0 }, \ 555 { "icmp6", CTLTYPE_NODE }, \ 556 { 0, 0 }, \ 557 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 558 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 559 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 560 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 561 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 562 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 563 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 564 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 565 { 0, 0 }, \ 566 { 0, 0 }, \ 567 { 0, 0 }, \ 568 { "pim6", CTLTYPE_NODE }, \ 569 } 570 571 /* 572 * Names for IP sysctl objects 573 */ 574 #define IPV6CTL_FORWARDING 1 /* act as router */ 575 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 576 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 577 #ifdef notyet 578 #define IPV6CTL_DEFMTU 4 /* default MTU */ 579 #endif 580 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 581 #define IPV6CTL_STATS 6 /* stats */ 582 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 583 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 584 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 585 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 586 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 587 #define IPV6CTL_ACCEPT_RTADV 12 588 #define IPV6CTL_KEEPFAITH 13 589 #define IPV6CTL_LOG_INTERVAL 14 590 #define IPV6CTL_HDRNESTLIMIT 15 591 #define IPV6CTL_DAD_COUNT 16 592 #define IPV6CTL_AUTO_FLOWLABEL 17 593 #define IPV6CTL_DEFMCASTHLIM 18 594 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 595 #define IPV6CTL_KAME_VERSION 20 596 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 597 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 598 /* 23: reserved */ 599 #define IPV6CTL_V6ONLY 24 600 /* 25 to 27: reserved */ 601 #define IPV6CTL_ANONPORTMIN 28 /* minimum ephemeral port */ 602 #define IPV6CTL_ANONPORTMAX 29 /* maximum ephemeral port */ 603 #define IPV6CTL_LOWPORTMIN 30 /* minimum reserved port */ 604 #define IPV6CTL_LOWPORTMAX 31 /* maximum reserved port */ 605 /* 32 to 38: reserved */ 606 #define IPV6CTL_USE_DEFAULTZONE 39 /* use default scope zone */ 607 /* 40: reserved */ 608 #define IPV6CTL_MAXFRAGS 41 /* max fragments */ 609 #define IPV6CTL_IFQ 42 /* ip6intrq node */ 610 /* New entries should be added here from current IPV6CTL_MAXID value. */ 611 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 612 #define IPV6CTL_MAXID 43 613 614 #define IPV6CTL_NAMES { \ 615 { 0, 0 }, \ 616 { "forwarding", CTLTYPE_INT }, \ 617 { "redirect", CTLTYPE_INT }, \ 618 { "hlim", CTLTYPE_INT }, \ 619 { "mtu", CTLTYPE_INT }, \ 620 { "forwsrcrt", CTLTYPE_INT }, \ 621 { "stats", CTLTYPE_STRUCT }, \ 622 { 0, 0 }, \ 623 { "mrtproto", CTLTYPE_INT }, \ 624 { "maxfragpackets", CTLTYPE_INT }, \ 625 { "sourcecheck", CTLTYPE_INT }, \ 626 { "sourcecheck_logint", CTLTYPE_INT }, \ 627 { "accept_rtadv", CTLTYPE_INT }, \ 628 { "keepfaith", CTLTYPE_INT }, \ 629 { "log_interval", CTLTYPE_INT }, \ 630 { "hdrnestlimit", CTLTYPE_INT }, \ 631 { "dad_count", CTLTYPE_INT }, \ 632 { "auto_flowlabel", CTLTYPE_INT }, \ 633 { "defmcasthlim", CTLTYPE_INT }, \ 634 { "gifhlim", CTLTYPE_INT }, \ 635 { "kame_version", CTLTYPE_STRING }, \ 636 { "use_deprecated", CTLTYPE_INT }, \ 637 { "rr_prune", CTLTYPE_INT }, \ 638 { 0, 0 }, \ 639 { "v6only", CTLTYPE_INT }, \ 640 { 0, 0 }, \ 641 { 0, 0 }, \ 642 { 0, 0 }, \ 643 { "anonportmin", CTLTYPE_INT }, \ 644 { "anonportmax", CTLTYPE_INT }, \ 645 { "lowportmin", CTLTYPE_INT }, \ 646 { "lowportmax", CTLTYPE_INT }, \ 647 { 0, 0 }, \ 648 { 0, 0 }, \ 649 { 0, 0 }, \ 650 { 0, 0 }, \ 651 { 0, 0 }, \ 652 { 0, 0 }, \ 653 { 0, 0 }, \ 654 { 0, 0 }, \ 655 { 0, 0 }, \ 656 { "maxfrags", CTLTYPE_INT }, \ 657 { "ifq", CTLTYPE_NODE }, \ 658 } 659 660 #endif /* _NETBSD_SOURCE */ 661 662 #ifdef _KERNEL 663 struct cmsghdr; 664 665 /* 666 * in6_cksum_phdr: 667 * 668 * Compute significant parts of the IPv6 checksum pseudo-header 669 * for use in a delayed TCP/UDP checksum calculation. 670 * 671 * Args: 672 * 673 * src Source IPv6 address 674 * dst Destination IPv6 address 675 * len htonl(proto-hdr-len) 676 * nxt htonl(next-proto-number) 677 * 678 * NOTE: We expect the src and dst addresses to be 16-bit 679 * aligned! 680 */ 681 static __inline u_int16_t __attribute__((__unused__)) 682 in6_cksum_phdr(const struct in6_addr *src, const struct in6_addr *dst, 683 u_int32_t len, u_int32_t nxt) 684 { 685 u_int32_t sum = 0; 686 const u_int16_t *w; 687 688 /*LINTED*/ 689 w = (const u_int16_t *) src; 690 sum += w[0]; 691 if (!IN6_IS_SCOPE_LINKLOCAL(src)) 692 sum += w[1]; 693 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5]; 694 sum += w[6]; sum += w[7]; 695 696 /*LINTED*/ 697 w = (const u_int16_t *) dst; 698 sum += w[0]; 699 if (!IN6_IS_SCOPE_LINKLOCAL(dst)) 700 sum += w[1]; 701 sum += w[2]; sum += w[3]; sum += w[4]; sum += w[5]; 702 sum += w[6]; sum += w[7]; 703 704 sum += (u_int16_t)(len >> 16) + (u_int16_t)(len /*& 0xffff*/); 705 706 sum += (u_int16_t)(nxt >> 16) + (u_int16_t)(nxt /*& 0xffff*/); 707 708 sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/); 709 710 if (sum > 0xffff) 711 sum -= 0xffff; 712 713 return (sum); 714 } 715 716 struct mbuf; 717 struct ifnet; 718 int in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t)); 719 void in6_delayed_cksum __P((struct mbuf *)); 720 int in6_localaddr __P((struct in6_addr *)); 721 int in6_addrscope __P((struct in6_addr *)); 722 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 723 extern void in6_if_up __P((struct ifnet *)); 724 #ifndef __FreeBSD__ 725 extern int in6_src_sysctl __P((void *, size_t *, void *, size_t)); 726 #endif 727 extern void addrsel_policy_init __P((void)); 728 extern u_char ip6_protox[]; 729 730 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 731 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 732 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 733 #endif /* _KERNEL */ 734 735 #if defined(_NETBSD_SOURCE) 736 737 #include <machine/ansi.h> 738 739 #ifdef _EFI_SIZE_T_ 740 typedef _EFI_SIZE_T_ size_t; 741 #define _SIZE_T 742 #undef _EFI_SIZE_T_ 743 #undef _BSD_SIZE_T_ 744 #endif 745 746 #include <sys/EfiCdefs.h> 747 748 __BEGIN_DECLS 749 struct cmsghdr; 750 751 extern int inet6_option_space (int); 752 extern int inet6_option_init (void *, struct cmsghdr **, int); 753 extern int inet6_option_append (struct cmsghdr *, const uint8_t *, 754 int, int); 755 extern uint8_t *inet6_option_alloc (struct cmsghdr *, int, int, int); 756 extern int inet6_option_next (const struct cmsghdr *, uint8_t **); 757 extern int inet6_option_find (const struct cmsghdr *, uint8_t **, int); 758 759 extern size_t inet6_rthdr_space (int, int); 760 extern struct cmsghdr *inet6_rthdr_init (void *, int); 761 extern int inet6_rthdr_add (struct cmsghdr *, const struct in6_addr *, 762 unsigned int); 763 extern int inet6_rthdr_lasthop (struct cmsghdr *, unsigned int); 764 #if 0 /* not implemented yet */ 765 extern int inet6_rthdr_reverse (const struct cmsghdr *, struct cmsghdr *); 766 #endif 767 extern int inet6_rthdr_segments (const struct cmsghdr *); 768 extern struct in6_addr *inet6_rthdr_getaddr (struct cmsghdr *, int); 769 extern int inet6_rthdr_getflags (const struct cmsghdr *, int); 770 771 extern int inet6_opt_init (void *, socklen_t); 772 extern int inet6_opt_append (void *, socklen_t, int, uint8_t, 773 socklen_t, uint8_t, void **); 774 extern int inet6_opt_finish (void *, socklen_t, int); 775 extern int inet6_opt_set_val (void *, int, void *, socklen_t); 776 777 extern int inet6_opt_next (void *, socklen_t, int, uint8_t *, 778 socklen_t *, void **); 779 extern int inet6_opt_find (void *, socklen_t, int, uint8_t, 780 socklen_t *, void **); 781 extern int inet6_opt_get_val (void *, int, void *, socklen_t); 782 extern socklen_t inet6_rth_space (int, int); 783 extern void *inet6_rth_init (void *, socklen_t, int, int); 784 extern int inet6_rth_add (void *, const struct in6_addr *); 785 extern int inet6_rth_reverse (const void *, void *); 786 extern int inet6_rth_segments (const void *); 787 extern struct in6_addr *inet6_rth_getaddr (const void *, int); 788 __END_DECLS 789 #endif /* _NETBSD_SOURCE */ 790 791 #endif /* !_NETINET6_IN6_H_ */ 792
