1 /* $FreeBSD: src/sys/netinet6/in6.h,v 1.19 2002/04/19 04:46:22 suz 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 * 4. 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 #include <sys/types.h> 72 73 /* 74 * Identification of the network protocol stack 75 * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE 76 * has the table of implementation/integration differences. 77 */ 78 #define __KAME__ 79 #define __KAME_VERSION "20010528/FreeBSD" 80 81 /* 82 * Local port number conventions: 83 * 84 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 85 * unless a kernel is compiled with IPNOPRIVPORTS defined. 86 * 87 * When a user does a bind(2) or connect(2) with a port number of zero, 88 * a non-conflicting local port address is chosen. 89 * 90 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 91 * that is settable by sysctl(3); net.inet.ip.anonportmin and 92 * net.inet.ip.anonportmax respectively. 93 * 94 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 95 * default assignment range. 96 * 97 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 98 * 99 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 100 * and exists only for FreeBSD compatibility purposes. 101 * 102 * The value IP_PORTRANGE_LOW changes the range to the "low" are 103 * that is (by convention) restricted to privileged processes. 104 * This convention is based on "vouchsafe" principles only. 105 * It is only secure if you trust the remote host to restrict these ports. 106 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 107 */ 108 109 #define IPV6PORT_RESERVED 1024 110 #define IPV6PORT_ANONMIN 49152 111 #define IPV6PORT_ANONMAX 65535 112 #define IPV6PORT_RESERVEDMIN 600 113 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 114 115 /* 116 * IPv6 address 117 */ 118 struct in6_addr { 119 union { 120 uint8_t __u6_addr8[16]; 121 uint16_t __u6_addr16[8]; 122 uint32_t __u6_addr32[4]; 123 } __u6_addr; /* 128-bit IP6 address */ 124 }; 125 126 #define s6_addr __u6_addr.__u6_addr8 127 #ifdef _KERNEL /* XXX nonstandard */ 128 #define s6_addr8 __u6_addr.__u6_addr8 129 #define s6_addr16 __u6_addr.__u6_addr16 130 #define s6_addr32 __u6_addr.__u6_addr32 131 #endif 132 133 #define INET6_ADDRSTRLEN 46 134 135 /* 136 * Socket address for IPv6 137 */ 138 #ifndef _XOPEN_SOURCE 139 #define SIN6_LEN 140 #endif 141 struct sockaddr_in6 { 142 uint8_t sin6_family; /* AF_INET6 (sa_family_t) */ 143 uint16_t sin6_port; /* Transport layer port # (in_port_t)*/ 144 uint32_t sin6_flowinfo; /* IP6 flow information */ 145 struct in6_addr sin6_addr; /* IP6 address */ 146 uint32_t sin6_scope_id; /* scope zone index */ 147 }; 148 149 /* 150 * Local definition for masks 151 */ 152 #ifdef _KERNEL /* XXX nonstandard */ 153 #define IN6MASK0 {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}} 154 #define IN6MASK32 {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \ 155 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 156 #define IN6MASK64 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 157 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 158 #define IN6MASK96 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 159 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}} 160 #define IN6MASK128 {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 161 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}} 162 #endif 163 164 #ifdef _KERNEL 165 extern const struct sockaddr_in6 sa6_any; 166 167 extern const struct in6_addr in6mask0; 168 extern const struct in6_addr in6mask32; 169 extern const struct in6_addr in6mask64; 170 extern const struct in6_addr in6mask96; 171 extern const struct in6_addr in6mask128; 172 #endif /* _KERNEL */ 173 174 /* 175 * Macros started with IPV6_ADDR is KAME local 176 */ 177 #ifdef _KERNEL /* XXX nonstandard */ 178 #if BYTE_ORDER == BIG_ENDIAN 179 #define IPV6_ADDR_INT32_ONE 1 180 #define IPV6_ADDR_INT32_TWO 2 181 #define IPV6_ADDR_INT32_MNL 0xff010000 182 #define IPV6_ADDR_INT32_MLL 0xff020000 183 #define IPV6_ADDR_INT32_SMP 0x0000ffff 184 #define IPV6_ADDR_INT16_ULL 0xfe80 185 #define IPV6_ADDR_INT16_USL 0xfec0 186 #define IPV6_ADDR_INT16_MLL 0xff02 187 #elif BYTE_ORDER == LITTLE_ENDIAN 188 #define IPV6_ADDR_INT32_ONE 0x01000000 189 #define IPV6_ADDR_INT32_TWO 0x02000000 190 #define IPV6_ADDR_INT32_MNL 0x000001ff 191 #define IPV6_ADDR_INT32_MLL 0x000002ff 192 #define IPV6_ADDR_INT32_SMP 0xffff0000 193 #define IPV6_ADDR_INT16_ULL 0x80fe 194 #define IPV6_ADDR_INT16_USL 0xc0fe 195 #define IPV6_ADDR_INT16_MLL 0x02ff 196 #endif 197 #endif 198 199 /* 200 * Definition of some useful macros to handle IP6 addresses 201 */ 202 #define IN6ADDR_ANY_INIT \ 203 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 205 #define IN6ADDR_LOOPBACK_INIT \ 206 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 207 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 208 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 209 {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 210 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 211 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 212 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 213 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} 214 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 215 {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 216 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} 217 218 extern const struct in6_addr in6addr_any; 219 extern const struct in6_addr in6addr_loopback; 220 extern const struct in6_addr in6addr_nodelocal_allnodes; 221 extern const struct in6_addr in6addr_linklocal_allnodes; 222 extern const struct in6_addr in6addr_linklocal_allrouters; 223 224 /* 225 * Equality 226 * NOTE: Some of kernel programming environment (for example, openbsd/sparc) 227 * does not supply memcmp(). For userland memcmp() is preferred as it is 228 * in ANSI standard. 229 */ 230 #ifdef _KERNEL 231 #define IN6_ARE_ADDR_EQUAL(a, b) \ 232 (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 233 #else 234 #define IN6_ARE_ADDR_EQUAL(a, b) \ 235 (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0) 236 #endif 237 238 #ifdef _KERNEL /* non standard */ 239 /* see if two addresses are equal in a scope-conscious manner. */ 240 #define SA6_ARE_ADDR_EQUAL(a, b) \ 241 (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \ 242 ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \ 243 (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0)) 244 #endif 245 246 /* 247 * Unspecified 248 */ 249 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 250 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 251 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 252 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 253 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 254 255 /* 256 * Loopback 257 */ 258 #define IN6_IS_ADDR_LOOPBACK(a) \ 259 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 260 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 261 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 262 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1))) 263 264 /* 265 * IPv4 compatible 266 */ 267 #define IN6_IS_ADDR_V4COMPAT(a) \ 268 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 269 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 270 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 271 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \ 272 (*(const uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1))) 273 274 /* 275 * Mapped 276 */ 277 #define IN6_IS_ADDR_V4MAPPED(a) \ 278 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 279 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 280 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff))) 281 282 /* 283 * KAME Scope Values 284 */ 285 286 #ifdef _KERNEL /* XXX nonstandard */ 287 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 288 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 289 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 290 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 291 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 292 #else 293 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 294 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 295 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 296 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 297 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 298 #endif 299 300 /* 301 * Unicast Scope 302 * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373). 303 */ 304 #define IN6_IS_ADDR_LINKLOCAL(a) \ 305 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 306 #define IN6_IS_ADDR_SITELOCAL(a) \ 307 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 308 309 /* 310 * Multicast 311 */ 312 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 313 314 #ifdef _KERNEL /* XXX nonstandard */ 315 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 316 #else 317 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 318 #endif 319 320 /* 321 * Multicast Scope 322 */ 323 #ifdef _KERNEL /* refers nonstandard items */ 324 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 325 (IN6_IS_ADDR_MULTICAST(a) && \ 326 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 327 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 328 (IN6_IS_ADDR_MULTICAST(a) && \ 329 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 330 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 331 (IN6_IS_ADDR_MULTICAST(a) && \ 332 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 333 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 334 (IN6_IS_ADDR_MULTICAST(a) && \ 335 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 336 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 337 (IN6_IS_ADDR_MULTICAST(a) && \ 338 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 339 #else 340 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 341 (IN6_IS_ADDR_MULTICAST(a) && \ 342 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL)) 343 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 344 (IN6_IS_ADDR_MULTICAST(a) && \ 345 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL)) 346 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 347 (IN6_IS_ADDR_MULTICAST(a) && \ 348 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL)) 349 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 350 (IN6_IS_ADDR_MULTICAST(a) && \ 351 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL)) 352 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 353 (IN6_IS_ADDR_MULTICAST(a) && \ 354 (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL)) 355 #endif 356 357 #ifdef _KERNEL /* nonstandard */ 358 /* 359 * KAME Scope 360 */ 361 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 362 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 363 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 364 365 #define IFA6_IS_DEPRECATED(a) \ 366 ((a)->ia6_lifetime.ia6t_preferred != 0 && \ 367 (a)->ia6_lifetime.ia6t_preferred < time_second) 368 #define IFA6_IS_INVALID(a) \ 369 ((a)->ia6_lifetime.ia6t_expire != 0 && \ 370 (a)->ia6_lifetime.ia6t_expire < time_second) 371 #endif /* _KERNEL */ 372 373 /* 374 * IP6 route structure 375 */ 376 #ifndef _XOPEN_SOURCE 377 struct route_in6 { 378 struct rtentry *ro_rt; 379 struct sockaddr_in6 ro_dst; 380 }; 381 #endif 382 383 /* 384 * Options for use with [gs]etsockopt at the IPV6 level. 385 * First word of comment is data type; bool is stored in int. 386 */ 387 /* no hdrincl */ 388 #if 0 /* the followings are relic in IPv4 and hence are disabled */ 389 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 390 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 391 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 392 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 393 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 394 #endif 395 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 396 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 397 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 398 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 399 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 400 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 401 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 402 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 403 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 404 /* RFC2292 options */ 405 #define IPV6_PKTINFO 19 /* bool; send/recv if, src/dst addr */ 406 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 407 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 408 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 409 #define IPV6_DSTOPTS 23 /* bool; destination option */ 410 #define IPV6_RTHDR 24 /* bool; routing header */ 411 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 412 413 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 414 #define IPV6_V6ONLY 27 /* bool; only bind INET6 at wildcard bind */ 415 #ifndef _KERNEL 416 #define IPV6_BINDV6ONLY IPV6_V6ONLY 417 #endif 418 419 #if 1 /* IPSEC */ 420 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 421 #endif 422 #define IPV6_FAITH 29 /* bool; accept FAITH'ed connections */ 423 424 #if 1 /* IPV6FIREWALL */ 425 #define IPV6_FW_ADD 30 /* add a firewall rule to chain */ 426 #define IPV6_FW_DEL 31 /* delete a firewall rule from chain */ 427 #define IPV6_FW_FLUSH 32 /* flush firewall rule chain */ 428 #define IPV6_FW_ZERO 33 /* clear single/all firewall counter(s) */ 429 #define IPV6_FW_GET 34 /* get entire firewall rule chain */ 430 #endif 431 432 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 433 434 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 435 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 436 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 437 438 /* 439 * Defaults and limits for options 440 */ 441 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 442 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 443 444 /* 445 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 446 */ 447 struct ipv6_mreq { 448 struct in6_addr ipv6mr_multiaddr; 449 unsigned int ipv6mr_interface; 450 }; 451 452 /* 453 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 454 */ 455 struct in6_pktinfo { 456 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 457 unsigned int ipi6_ifindex; /* send/recv interface index */ 458 }; 459 460 /* 461 * Argument for IPV6_PORTRANGE: 462 * - which range to search when port is unspecified at bind() or connect() 463 */ 464 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 465 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 466 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 467 468 #ifndef _XOPEN_SOURCE 469 /* 470 * Definitions for inet6 sysctl operations. 471 * 472 * Third level is protocol number. 473 * Fourth level is desired variable within that protocol. 474 */ 475 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 476 477 #define CTL_IPV6PROTO_NAMES { \ 478 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 479 { 0, 0 }, \ 480 { "tcp6", CTLTYPE_NODE }, \ 481 { 0, 0 }, \ 482 { 0, 0 }, \ 483 { 0, 0 }, \ 484 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 485 { 0, 0 }, \ 486 { 0, 0 }, \ 487 { "udp6", CTLTYPE_NODE }, \ 488 { 0, 0 }, \ 489 { 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 { "ip6", CTLTYPE_NODE }, \ 496 { 0, 0 }, \ 497 { 0, 0 }, \ 498 { 0, 0 }, \ 499 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 500 { 0, 0 }, \ 501 { "ipsec6", CTLTYPE_NODE }, \ 502 { 0, 0 }, \ 503 { 0, 0 }, \ 504 { 0, 0 }, \ 505 { 0, 0 }, \ 506 { 0, 0 }, \ 507 { 0, 0 }, \ 508 { "icmp6", CTLTYPE_NODE }, \ 509 { 0, 0 }, \ 510 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 511 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 512 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 513 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 514 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 515 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 516 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 517 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 518 { 0, 0 }, \ 519 { 0, 0 }, \ 520 { 0, 0 }, \ 521 { "pim6", CTLTYPE_NODE }, \ 522 } 523 524 /* 525 * Names for IP sysctl objects 526 */ 527 #define IPV6CTL_FORWARDING 1 /* act as router */ 528 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 529 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 530 #ifdef notyet 531 #define IPV6CTL_DEFMTU 4 /* default MTU */ 532 #endif 533 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 534 #define IPV6CTL_STATS 6 /* stats */ 535 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 536 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 537 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 538 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 539 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 540 #define IPV6CTL_ACCEPT_RTADV 12 541 #define IPV6CTL_KEEPFAITH 13 542 #define IPV6CTL_LOG_INTERVAL 14 543 #define IPV6CTL_HDRNESTLIMIT 15 544 #define IPV6CTL_DAD_COUNT 16 545 #define IPV6CTL_AUTO_FLOWLABEL 17 546 #define IPV6CTL_DEFMCASTHLIM 18 547 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 548 #define IPV6CTL_KAME_VERSION 20 549 #define IPV6CTL_USE_DEPRECATED 21 /* use deprecated addr (RFC2462 5.5.4) */ 550 #define IPV6CTL_RR_PRUNE 22 /* walk timer for router renumbering */ 551 #if 0 /* obsolete */ 552 #define IPV6CTL_MAPPED_ADDR 23 553 #endif 554 #define IPV6CTL_V6ONLY 24 555 #define IPV6CTL_RTEXPIRE 25 /* cloned route expiration time */ 556 #define IPV6CTL_RTMINEXPIRE 26 /* min value for expiration time */ 557 #define IPV6CTL_RTMAXCACHE 27 /* trigger level for dynamic expire */ 558 559 #define IPV6CTL_USETEMPADDR 32 /* use temporary addresses (RFC3041) */ 560 #define IPV6CTL_TEMPPLTIME 33 /* preferred lifetime for tmpaddrs */ 561 #define IPV6CTL_TEMPVLTIME 34 /* valid lifetime for tmpaddrs */ 562 #define IPV6CTL_AUTO_LINKLOCAL 35 /* automatic link-local addr assign */ 563 #define IPV6CTL_RIP6STATS 36 /* raw_ip6 stats */ 564 565 /* New entries should be added here from current IPV6CTL_MAXID value. */ 566 /* to define items, should talk with KAME guys first, for *BSD compatibility */ 567 #define IPV6CTL_MAXID 37 568 569 #endif /* !_XOPEN_SOURCE */ 570 571 /* 572 * Redefinition of mbuf flags 573 */ 574 #define M_AUTHIPHDR M_PROTO2 575 #define M_DECRYPTED M_PROTO3 576 #define M_LOOP M_PROTO4 577 #define M_AUTHIPDGM M_PROTO5 578 579 #ifdef _KERNEL 580 struct cmsghdr; 581 582 int in6_cksum __P((struct mbuf *, uint8_t, uint32_t, uint32_t)); 583 int in6_localaddr __P((struct in6_addr *)); 584 int in6_addrscope __P((struct in6_addr *)); 585 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 586 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 587 extern void in6_if_up __P((struct ifnet *)); 588 struct sockaddr; 589 extern u_char ip6_protox[]; 590 591 void in6_sin6_2_sin __P((struct sockaddr_in *sin, 592 struct sockaddr_in6 *sin6)); 593 void in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin, 594 struct sockaddr_in6 *sin6)); 595 void in6_sin6_2_sin_in_sock __P((struct sockaddr *nam)); 596 void in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam)); 597 598 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 599 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 600 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 601 602 extern int (*faithprefix_p)(struct in6_addr *); 603 #endif /* _KERNEL */ 604 605 __BEGIN_DECLS 606 struct cmsghdr; 607 608 extern int inet6_option_space __P((int)); 609 extern int inet6_option_init __P((void *, struct cmsghdr **, int)); 610 extern int inet6_option_append __P((struct cmsghdr *, const uint8_t *, 611 int, int)); 612 extern uint8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int)); 613 extern int inet6_option_next __P((const struct cmsghdr *, uint8_t **)); 614 extern int inet6_option_find __P((const struct cmsghdr *, uint8_t **, int)); 615 616 extern size_t inet6_rthdr_space __P((int, int)); 617 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 618 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 619 unsigned int)); 620 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 621 #if 0 /* not implemented yet */ 622 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 623 #endif 624 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 625 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 626 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 627 628 extern int inet6_opt_init __P((void *, size_t)); 629 extern int inet6_opt_append __P((void *, size_t, int, uint8_t, 630 size_t, uint8_t, void **)); 631 extern int inet6_opt_finish __P((void *, size_t, int)); 632 extern int inet6_opt_set_val __P((void *, size_t, void *, int)); 633 634 extern int inet6_opt_next __P((void *, size_t, int, uint8_t *, 635 size_t *, void **)); 636 extern int inet6_opt_find __P((void *, size_t, int, uint8_t, 637 size_t *, void **)); 638 extern int inet6_opt_get_val __P((void *, size_t, void *, int)); 639 extern size_t inet6_rth_space __P((int, int)); 640 extern void *inet6_rth_init __P((void *, int, int, int)); 641 extern int inet6_rth_add __P((void *, const struct in6_addr *)); 642 extern int inet6_rth_reverse __P((const void *, void *)); 643 extern int inet6_rth_segments __P((const void *)); 644 extern struct in6_addr *inet6_rth_getaddr __P((const void *, int)); 645 __END_DECLS 646 647 #endif /* !_NETINET6_IN6_H_ */ 648
