in6.h revision 1.3
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 */ 64 65 #ifndef _NETINET6_IN6_H_ 66 #define _NETINET6_IN6_H_ 67 68 #include <sys/queue.h> 69 70 /* 71 * Identification of the network protocol stack 72 */ 73 #define __KAME__ 74 #define __KAME_VERSION "SNAP 19990628/NetBSD-current" 75 76 /* 77 * Local port number conventions: 78 * 79 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 80 * unless a kernel is compiled with IPNOPRIVPORTS defined. 81 * 82 * When a user does a bind(2) or connect(2) with a port number of zero, 83 * a non-conflicting local port address is chosen. 84 * 85 * The default range is IPPORT_ANONMIX to IPPORT_ANONMAX, although 86 * that is settable by sysctl(3); net.inet.ip.anonportmin and 87 * net.inet.ip.anonportmax respectively. 88 * 89 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 90 * default assignment range. 91 * 92 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 93 * 94 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 95 * and exists only for FreeBSD compatibility purposes. 96 * 97 * The value IP_PORTRANGE_LOW changes the range to the "low" are 98 * that is (by convention) restricted to privileged processes. 99 * This convention is based on "vouchsafe" principles only. 100 * It is only secure if you trust the remote host to restrict these ports. 101 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 102 */ 103 104 #define IPV6PORT_RESERVED 1024 105 #define IPV6PORT_ANONMIN 49152 106 #define IPV6PORT_ANONMAX 65535 107 #define IPV6PORT_RESERVEDMIN 600 108 #define IPV6PORT_RESERVEDMAX (IPV6PORT_RESERVED-1) 109 110 /* 111 * IPv6 address 112 */ 113 struct in6_addr { 114 union { 115 u_int32_t u6_addr32[4]; 116 u_int16_t u6_addr16[8]; 117 u_int8_t u6_addr8[16]; 118 } u6_addr; /* 128 bit IP6 address */ 119 }; 120 121 #define s6_addr32 u6_addr.u6_addr32 122 #define s6_addr16 u6_addr.u6_addr16 123 #define s6_addr8 u6_addr.u6_addr8 124 #define s6_addr u6_addr.u6_addr8 125 126 #define INET6_ADDRSTRLEN 46 127 128 /* 129 * Socket address for IPv6 130 */ 131 #define SIN6_LEN 132 struct sockaddr_in6 { 133 u_char sin6_len; /* length of this struct(sa_family_t)*/ 134 u_char sin6_family; /* AF_INET6 (sa_family_t) */ 135 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 136 u_int32_t sin6_flowinfo; /* IP6 flow information */ 137 struct in6_addr sin6_addr; /* IP6 address */ 138 u_int32_t sin6_scope_id; /* intface scope id */ 139 }; 140 141 /* 142 * Local definition for masks 143 */ 144 #define IN6MASK0 {{{ 0, 0, 0, 0 }}} 145 #define IN6MASK32 {{{ 0xffffffff, 0, 0, 0 }}} 146 #define IN6MASK64 {{{ 0xffffffff, 0xffffffff, 0, 0 }}} 147 #define IN6MASK96 {{{ 0xffffffff, 0xffffffff, 0xffffffff, 0 }}} 148 #define IN6MASK128 {{{ 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }}} 149 150 #ifdef _KERNEL 151 extern const struct in6_addr in6mask0; 152 extern const struct in6_addr in6mask32; 153 extern const struct in6_addr in6mask64; 154 extern const struct in6_addr in6mask96; 155 extern const struct in6_addr in6mask128; 156 #endif /* _KERNEL */ 157 158 /* 159 * Macros started with IPV6_ADDR is KAME local 160 */ 161 162 #if BYTE_ORDER == BIG_ENDIAN 163 #define IPV6_ADDR_INT32_ONE 1 164 #define IPV6_ADDR_INT32_TWO 2 165 #define IPV6_ADDR_INT32_MNL 0xff010000 166 #define IPV6_ADDR_INT32_MLL 0xff020000 167 #define IPV6_ADDR_INT32_SMP 0x0000ffff 168 #define IPV6_ADDR_INT16_ULL 0xfe80 169 #define IPV6_ADDR_INT16_USL 0xfec0 170 #define IPV6_ADDR_INT16_MLL 0xff02 171 #elif BYTE_ORDER == LITTLE_ENDIAN 172 #define IPV6_ADDR_INT32_ONE 0x01000000 173 #define IPV6_ADDR_INT32_TWO 0x02000000 174 #define IPV6_ADDR_INT32_MNL 0x000001ff 175 #define IPV6_ADDR_INT32_MLL 0x000002ff 176 #define IPV6_ADDR_INT32_SMP 0xffff0000 177 #define IPV6_ADDR_INT16_ULL 0x80fe 178 #define IPV6_ADDR_INT16_USL 0xc0fe 179 #define IPV6_ADDR_INT16_MLL 0x02ff 180 #endif 181 182 /* 183 * Definition of some useful macros to handle IP6 addresses 184 */ 185 #define IN6ADDR_ANY_INIT {{{ 0, 0, 0, 0 }}} 186 #define IN6ADDR_LOOPBACK_INIT {{{ 0, 0, 0, IPV6_ADDR_INT32_ONE }}} 187 #define IN6ADDR_NODELOCAL_ALLNODES_INIT \ 188 {{{ IPV6_ADDR_INT32_MNL, 0, 0, IPV6_ADDR_INT32_ONE }}} 189 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 190 {{{ IPV6_ADDR_INT32_MLL, 0, 0, IPV6_ADDR_INT32_ONE }}} 191 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 192 {{{ IPV6_ADDR_INT32_MLL, 0, 0, IPV6_ADDR_INT32_TWO }}} 193 194 extern const struct in6_addr in6addr_any; 195 extern const struct in6_addr in6addr_loopback; 196 extern const struct in6_addr in6addr_nodelocal_allnodes; 197 extern const struct in6_addr in6addr_linklocal_allnodes; 198 extern const struct in6_addr in6addr_linklocal_allrouters; 199 200 /* 201 * Equality 202 */ 203 #define IN6_ARE_ADDR_EQUAL(a, b) \ 204 (((a)->s6_addr32[0] == (b)->s6_addr32[0]) && \ 205 ((a)->s6_addr32[1] == (b)->s6_addr32[1]) && \ 206 ((a)->s6_addr32[2] == (b)->s6_addr32[2]) && \ 207 ((a)->s6_addr32[3] == (b)->s6_addr32[3])) 208 209 /* 210 * Unspecified 211 */ 212 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 213 (((a)->s6_addr32[0] == 0) && \ 214 ((a)->s6_addr32[1] == 0) && \ 215 ((a)->s6_addr32[2] == 0) && \ 216 ((a)->s6_addr32[3] == 0)) 217 218 /* 219 * Loopback 220 */ 221 #define IN6_IS_ADDR_LOOPBACK(a) \ 222 (((a)->s6_addr32[0] == 0) && \ 223 ((a)->s6_addr32[1] == 0) && \ 224 ((a)->s6_addr32[2] == 0) && \ 225 ((a)->s6_addr32[3] == IPV6_ADDR_INT32_ONE)) 226 227 /* 228 * IPv4 compatible 229 */ 230 #define IN6_IS_ADDR_V4COMPAT(a) \ 231 (((a)->s6_addr32[0] == 0) && \ 232 ((a)->s6_addr32[1] == 0) && \ 233 ((a)->s6_addr32[2] == 0) && \ 234 ((a)->s6_addr32[3] != 0) && \ 235 ((a)->s6_addr32[3] != IPV6_ADDR_INT32_ONE)) 236 237 /* 238 * Mapped 239 */ 240 #define IN6_IS_ADDR_V4MAPPED(a) \ 241 (((a)->s6_addr32[0] == 0) && \ 242 ((a)->s6_addr32[1] == 0) && \ 243 ((a)->s6_addr32[2] == IPV6_ADDR_INT32_SMP)) 244 245 /* 246 * KAME Scope Values 247 */ 248 249 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 250 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 251 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 252 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 /* just used in this file */ 253 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e 254 255 /* 256 * Unicast Scope 257 */ 258 #define IN6_IS_ADDR_LINKLOCAL(a) \ 259 ((a)->s6_addr16[0] == IPV6_ADDR_INT16_ULL) 260 #define IN6_IS_ADDR_SITELOCAL(a) \ 261 ((a)->s6_addr16[0] == IPV6_ADDR_INT16_USL) 262 263 /* 264 * Multicast 265 */ 266 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr8[0] == 0xff) 267 268 #define IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr8[1] & 0x0f) 269 270 /* 271 * Multicast Scope 272 */ 273 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 274 (IN6_IS_ADDR_MULTICAST(a) && \ 275 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL)) 276 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 277 (IN6_IS_ADDR_MULTICAST(a) && \ 278 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL)) 279 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 280 (IN6_IS_ADDR_MULTICAST(a) && \ 281 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL)) 282 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 283 (IN6_IS_ADDR_MULTICAST(a) && \ 284 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL)) 285 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 286 (IN6_IS_ADDR_MULTICAST(a) && \ 287 (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL)) 288 289 /* 290 * Wildcard Socket 291 */ 292 #define IN6_IS_ADDR_ANY(a) IN6_IS_ADDR_UNSPECIFIED(a) 293 294 /* 295 * KAME Scope 296 */ 297 #define IN6_IS_SCOPE_LINKLOCAL(a) \ 298 ((IN6_IS_ADDR_LINKLOCAL(a)) || \ 299 (IN6_IS_ADDR_MC_LINKLOCAL(a))) 300 301 /* 302 * IP6 route structure 303 */ 304 struct route_in6 { 305 struct rtentry *ro_rt; 306 struct sockaddr_in6 ro_dst; 307 }; 308 309 /* 310 * Options for use with [gs]etsockopt at the IPV6 level. 311 * First word of comment is data type; bool is stored in int. 312 */ 313 #define IPV6_OPTIONS 1 /* buf/ip6_opts; set/get IP6 options */ 314 /* no hdrincl */ 315 #define IPV6_SOCKOPT_RESERVED1 3 /* reserved for future use */ 316 #define IPV6_UNICAST_HOPS 4 /* int; IP6 hops */ 317 #define IPV6_RECVOPTS 5 /* bool; receive all IP6 opts w/dgram */ 318 #define IPV6_RECVRETOPTS 6 /* bool; receive IP6 opts for response */ 319 #define IPV6_RECVDSTADDR 7 /* bool; receive IP6 dst addr w/dgram */ 320 #define IPV6_RETOPTS 8 /* ip6_opts; set/get IP6 options */ 321 #define IPV6_MULTICAST_IF 9 /* u_char; set/get IP6 multicast i/f */ 322 #define IPV6_MULTICAST_HOPS 10 /* u_char; set/get IP6 multicast hops */ 323 #define IPV6_MULTICAST_LOOP 11 /* u_char; set/get IP6 multicast loopback */ 324 #define IPV6_JOIN_GROUP 12 /* ip6_mreq; join a group membership */ 325 #define IPV6_LEAVE_GROUP 13 /* ip6_mreq; leave a group membership */ 326 #define IPV6_PORTRANGE 14 /* int; range to choose for unspec port */ 327 #define ICMP6_FILTER 18 /* icmp6_filter; icmp6 filter */ 328 #define IPV6_PKTINFO 19 /* bool; send/rcv if, src/dst addr */ 329 #define IPV6_HOPLIMIT 20 /* bool; hop limit */ 330 #define IPV6_NEXTHOP 21 /* bool; next hop addr */ 331 #define IPV6_HOPOPTS 22 /* bool; hop-by-hop option */ 332 #define IPV6_DSTOPTS 23 /* bool; destination option */ 333 #define IPV6_RTHDR 24 /* bool; routing header */ 334 #define IPV6_PKTOPTIONS 25 /* buf/cmsghdr; set/get IPv6 options */ 335 #define IPV6_CHECKSUM 26 /* int; checksum offset for raw socket */ 336 #define IPV6_BINDV6ONLY 27 /* bool; only bind INET6 at null bind */ 337 338 #if 1 /*IPSEC*/ 339 #define IPV6_IPSEC_POLICY 28 /* struct; get/set security policy */ 340 #endif 341 #define IPV6_FAITH 32 /* bool; accept FAITH'ed connections */ 342 343 #define IPV6_RTHDR_LOOSE 0 /* this hop need not be a neighbor. XXX old spec */ 344 #define IPV6_RTHDR_STRICT 1 /* this hop must be a neighbor. XXX old spec */ 345 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 routing header type 0 */ 346 347 /* 348 * Defaults and limits for options 349 */ 350 #define IPV6_DEFAULT_MULTICAST_HOPS 1 /* normally limit m'casts to 1 hop */ 351 #define IPV6_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 352 353 /* 354 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP. 355 */ 356 struct ipv6_mreq { 357 struct in6_addr ipv6mr_multiaddr; 358 u_int ipv6mr_interface; 359 }; 360 361 /* 362 * IPV6_PKTINFO: Packet information(RFC2292 sec 5) 363 */ 364 struct in6_pktinfo { 365 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 366 u_int ipi6_ifindex; /* send/recv interface index */ 367 }; 368 369 /* 370 * Argument for IPV6_PORTRANGE: 371 * - which range to search when port is unspecified at bind() or connect() 372 */ 373 #define IPV6_PORTRANGE_DEFAULT 0 /* default range */ 374 #define IPV6_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 375 #define IPV6_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 376 377 /* 378 * Definitions for inet6 sysctl operations. 379 * 380 * Third level is protocol number. 381 * Fourth level is desired variable within that protocol. 382 */ 383 #define IPV6PROTO_MAXID (IPPROTO_PIM + 1) /* don't list to IPV6PROTO_MAX */ 384 385 #define CTL_IPV6PROTO_NAMES { \ 386 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 387 { 0, 0 }, \ 388 { "tcp6", CTLTYPE_NODE }, \ 389 { 0, 0 }, \ 390 { 0, 0 }, \ 391 { 0, 0 }, \ 392 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 393 { 0, 0 }, \ 394 { 0, 0 }, \ 395 { "udp6", CTLTYPE_NODE }, \ 396 { 0, 0 }, \ 397 { 0, 0 }, \ 398 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 399 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 400 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 401 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 402 { 0, 0 }, \ 403 { "ip6", CTLTYPE_NODE }, \ 404 { 0, 0 }, \ 405 { 0, 0 }, \ 406 { 0, 0 }, \ 407 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 408 { 0, 0 }, \ 409 { "ipsec6", CTLTYPE_NODE }, \ 410 { 0, 0 }, \ 411 { 0, 0 }, \ 412 { 0, 0 }, \ 413 { 0, 0 }, \ 414 { 0, 0 }, \ 415 { 0, 0 }, \ 416 { "icmp6", CTLTYPE_NODE }, \ 417 { 0, 0 }, \ 418 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 419 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 420 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 421 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 422 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 423 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 424 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 425 { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 426 { 0, 0 }, \ 427 { 0, 0 }, \ 428 { 0, 0 }, \ 429 { "pim6", CTLTYPE_NODE }, \ 430 } 431 432 /* 433 * Names for IP sysctl objects 434 */ 435 #define IPV6CTL_FORWARDING 1 /* act as router */ 436 #define IPV6CTL_SENDREDIRECTS 2 /* may send redirects when forwarding*/ 437 #define IPV6CTL_DEFHLIM 3 /* default Hop-Limit */ 438 #ifdef notyet 439 #define IPV6CTL_DEFMTU 4 /* default MTU */ 440 #endif 441 #define IPV6CTL_FORWSRCRT 5 /* forward source-routed dgrams */ 442 #define IPV6CTL_STATS 6 /* stats */ 443 #define IPV6CTL_MRTSTATS 7 /* multicast forwarding stats */ 444 #define IPV6CTL_MRTPROTO 8 /* multicast routing protocol */ 445 #define IPV6CTL_MAXFRAGPACKETS 9 /* max packets reassembly queue */ 446 #define IPV6CTL_SOURCECHECK 10 /* verify source route and intf */ 447 #define IPV6CTL_SOURCECHECK_LOGINT 11 /* minimume logging interval */ 448 #define IPV6CTL_ACCEPT_RTADV 12 449 #define IPV6CTL_KEEPFAITH 13 450 #define IPV6CTL_LOG_INTERVAL 14 451 #define IPV6CTL_HDRNESTLIMIT 15 452 #define IPV6CTL_DAD_COUNT 16 453 #define IPV6CTL_AUTO_FLOWLABEL 17 454 #define IPV6CTL_DEFMCASTHLIM 18 455 #define IPV6CTL_GIF_HLIM 19 /* default HLIM for gif encap packet */ 456 #define IPV6CTL_KAME_VERSION 20 457 /* New entries should be added here from current IPV6CTL_MAXID value. */ 458 #define IPV6CTL_MAXID 21 459 460 #define IPV6CTL_NAMES { \ 461 { 0, 0 }, \ 462 { "forwarding", CTLTYPE_INT }, \ 463 { "redirect", CTLTYPE_INT }, \ 464 { "hlim", CTLTYPE_INT }, \ 465 { "mtu", CTLTYPE_INT }, \ 466 { "forwsrcrt", CTLTYPE_INT }, \ 467 { 0, 0 }, \ 468 { 0, 0 }, \ 469 { "mrtproto", CTLTYPE_INT }, \ 470 { "maxfragpackets", CTLTYPE_INT }, \ 471 { "sourcecheck", CTLTYPE_INT }, \ 472 { "sourcecheck_logint", CTLTYPE_INT }, \ 473 { "accept_rtadv", CTLTYPE_INT }, \ 474 { "keepfaith", CTLTYPE_INT }, \ 475 { "log_interval", CTLTYPE_INT }, \ 476 { "hdrnestlimit", CTLTYPE_INT }, \ 477 { "dad_count", CTLTYPE_INT }, \ 478 { "auto_flowlabel", CTLTYPE_INT }, \ 479 { "defmcasthlim", CTLTYPE_INT }, \ 480 { "gifhlim", CTLTYPE_INT }, \ 481 { "kame_version", CTLTYPE_STRING }, \ 482 } 483 484 #define IPV6CTL_VARS { \ 485 0, \ 486 &ip6_forwarding, \ 487 &ip6_sendredirects, \ 488 &ip6_defhlim, \ 489 0, \ 490 &ip6_forward_srcrt, \ 491 0, \ 492 0, \ 493 0, \ 494 &ip6_maxfragpackets, \ 495 &ip6_sourcecheck, \ 496 &ip6_sourcecheck_interval, \ 497 &ip6_accept_rtadv, \ 498 &ip6_keepfaith, \ 499 &ip6_log_interval, \ 500 &ip6_hdrnestlimit, \ 501 &ip6_dad_count, \ 502 &auto_flowlabel, \ 503 &ip6_defmcasthlim, \ 504 &ip6_gif_hlim, \ 505 0, \ 506 } 507 508 #ifdef _KERNEL 509 struct cmsghdr; 510 511 int in6_canforward __P((struct in6_addr *, struct in6_addr *)); 512 int in6_cksum __P((struct mbuf *, u_int8_t, int, int)); 513 int in6_localaddr __P((struct in6_addr *)); 514 int in6_addrscope __P((struct in6_addr *)); 515 struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *)); 516 struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *)); 517 extern void in6_if_up __P((struct ifnet *)); 518 519 #define satosin6(sa) ((struct sockaddr_in6 *)(sa)) 520 #define sin6tosa(sin6) ((struct sockaddr *)(sin6)) 521 #define ifatoia6(ifa) ((struct in6_ifaddr *)(ifa)) 522 #endif /* _KERNEL */ 523 524 __BEGIN_DECLS 525 struct cmsghdr; 526 527 extern int inet6_option_space(int); 528 extern int inet6_option_init(void *, struct cmsghdr **, int); 529 extern int inet6_option_append(struct cmsghdr *, const u_int8_t *, int, int); 530 extern u_int8_t *inet6_option_alloc(struct cmsghdr *, int, int, int); 531 extern int inet6_option_next(const struct cmsghdr *, u_int8_t **); 532 extern int inet6_option_find(const struct cmsghdr *, u_int8_t **, int); 533 534 extern size_t inet6_rthdr_space __P((int, int)); 535 extern struct cmsghdr *inet6_rthdr_init __P((void *, int)); 536 extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *, 537 unsigned int)); 538 extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int)); 539 #if 0 /* not implemented yet */ 540 extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *)); 541 #endif 542 extern int inet6_rthdr_segments __P((const struct cmsghdr *)); 543 extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int)); 544 extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int)); 545 __END_DECLS 546 547 #endif /* !_NETINET6_IN6_H_ */ 548
Indexes created Thu Sep 25 16:09:42 GMT 2025