1/* 2 * Copyright (c) 2000,2007 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */ 29 30/* 31 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 32 * 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. Neither the name of the project nor the names of its contributors 43 * may be used to endorse or promote products derived from this software 44 * without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 */ 58 59/* 60 * Copyright (c) 1982, 1986, 1993 61 * The Regents of the University of California. All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 1. Redistributions of source code must retain the above copyright 67 * notice, this list of conditions and the following disclaimer. 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in the 70 * documentation and/or other materials provided with the distribution. 71 * 3. All advertising materials mentioning features or use of this software 72 * must display the following acknowledgement: 73 * This product includes software developed by the University of 74 * California, Berkeley and its contributors. 75 * 4. Neither the name of the University nor the names of its contributors 76 * may be used to endorse or promote products derived from this software 77 * without specific prior written permission. 78 * 79 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 80 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 81 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 82 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 83 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 84 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 85 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 86 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 87 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 88 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 89 * SUCH DAMAGE. 90 * 91 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93 92 */ 93 94#ifndef _NETINET_ICMP6_H_ 95#define _NETINET_ICMP6_H_ 96#include <sys/appleapiopts.h> 97 98#define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr) 99 - sizeof(struct icmp6_hdr) */ 100 101struct icmp6_hdr { 102 u_int8_t icmp6_type; /* type field */ 103 u_int8_t icmp6_code; /* code field */ 104 u_int16_t icmp6_cksum; /* checksum field */ 105 union { 106 u_int32_t icmp6_un_data32[1]; /* type-specific field */ 107 u_int16_t icmp6_un_data16[2]; /* type-specific field */ 108 u_int8_t icmp6_un_data8[4]; /* type-specific field */ 109 } icmp6_dataun; 110}; 111 112#define icmp6_data32 icmp6_dataun.icmp6_un_data32 113#define icmp6_data16 icmp6_dataun.icmp6_un_data16 114#define icmp6_data8 icmp6_dataun.icmp6_un_data8 115#define icmp6_pptr icmp6_data32[0] /* parameter prob */ 116#define icmp6_mtu icmp6_data32[0] /* packet too big */ 117#define icmp6_id icmp6_data16[0] /* echo request/reply */ 118#define icmp6_seq icmp6_data16[1] /* echo request/reply */ 119#define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */ 120 121#define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */ 122#define ICMP6_PACKET_TOO_BIG 2 /* packet too big */ 123#define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */ 124#define ICMP6_PARAM_PROB 4 /* ip6 header bad */ 125 126#define ICMP6_ECHO_REQUEST 128 /* echo service */ 127#define ICMP6_ECHO_REPLY 129 /* echo reply */ 128#define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */ 129#define MLD6_LISTENER_QUERY 130 /* multicast listener query */ 130#define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */ 131#define MLD6_LISTENER_REPORT 131 /* multicast listener report */ 132#define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */ 133#define MLD6_LISTENER_DONE 132 /* multicast listener done */ 134 135#define ND_ROUTER_SOLICIT 133 /* router solicitation */ 136#define ND_ROUTER_ADVERT 134 /* router advertisment */ 137#define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */ 138#define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisment */ 139#define ND_REDIRECT 137 /* redirect */ 140 141#define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */ 142 143#define ICMP6_WRUREQUEST 139 /* who are you request */ 144#define ICMP6_WRUREPLY 140 /* who are you reply */ 145#define ICMP6_FQDN_QUERY 139 /* FQDN query */ 146#define ICMP6_FQDN_REPLY 140 /* FQDN reply */ 147#define ICMP6_NI_QUERY 139 /* node information request */ 148#define ICMP6_NI_REPLY 140 /* node information reply */ 149 150/* The definitions below are experimental. TBA */ 151#define MLD6_MTRACE_RESP 200 /* mtrace response(to sender) */ 152#define MLD6_MTRACE 201 /* mtrace messages */ 153 154#define ICMP6_HADISCOV_REQUEST 202 /* XXX To be defined */ 155#define ICMP6_HADISCOV_REPLY 203 /* XXX To be defined */ 156 157#define ICMP6_MAXTYPE 203 158 159#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */ 160#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */ 161#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */ 162#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */ 163#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */ 164#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */ 165 166#define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */ 167#define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */ 168 169#define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */ 170#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */ 171#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */ 172 173#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */ 174 175#define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */ 176#define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */ 177#define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */ 178 179#define ICMP6_NI_SUCCESS 0 /* node information successful reply */ 180#define ICMP6_NI_REFUSED 1 /* node information request is refused */ 181#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */ 182 183#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */ 184#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */ 185#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */ 186 187/* Used in kernel only */ 188#define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */ 189#define ND_REDIRECT_ROUTER 1 /* redirect to a better router */ 190 191/* 192 * Multicast Listener Discovery 193 */ 194struct mld6_hdr { 195 struct icmp6_hdr mld6_hdr; 196 struct in6_addr mld6_addr; /* multicast address */ 197}; 198 199#define mld6_type mld6_hdr.icmp6_type 200#define mld6_code mld6_hdr.icmp6_code 201#define mld6_cksum mld6_hdr.icmp6_cksum 202#define mld6_maxdelay mld6_hdr.icmp6_data16[0] 203#define mld6_reserved mld6_hdr.icmp6_data16[1] 204 205/* 206 * Neighbor Discovery 207 */ 208 209struct nd_router_solicit { /* router solicitation */ 210 struct icmp6_hdr nd_rs_hdr; 211 /* could be followed by options */ 212}; 213 214#define nd_rs_type nd_rs_hdr.icmp6_type 215#define nd_rs_code nd_rs_hdr.icmp6_code 216#define nd_rs_cksum nd_rs_hdr.icmp6_cksum 217#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0] 218 219struct nd_router_advert { /* router advertisement */ 220 struct icmp6_hdr nd_ra_hdr; 221 u_int32_t nd_ra_reachable; /* reachable time */ 222 u_int32_t nd_ra_retransmit; /* retransmit timer */ 223 /* could be followed by options */ 224}; 225 226#define nd_ra_type nd_ra_hdr.icmp6_type 227#define nd_ra_code nd_ra_hdr.icmp6_code 228#define nd_ra_cksum nd_ra_hdr.icmp6_cksum 229#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0] 230#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1] 231#define ND_RA_FLAG_MANAGED 0x80 232#define ND_RA_FLAG_OTHER 0x40 233#define ND_RA_FLAG_HA 0x20 234 235/* 236 * Router preference values based on draft-draves-ipngwg-router-selection-01. 237 * These are non-standard definitions. 238 */ 239#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */ 240 241#define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */ 242#define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */ 243#define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */ 244#define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */ 245 246#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1] 247 248struct nd_neighbor_solicit { /* neighbor solicitation */ 249 struct icmp6_hdr nd_ns_hdr; 250 struct in6_addr nd_ns_target; /*target address */ 251 /* could be followed by options */ 252}; 253 254#define nd_ns_type nd_ns_hdr.icmp6_type 255#define nd_ns_code nd_ns_hdr.icmp6_code 256#define nd_ns_cksum nd_ns_hdr.icmp6_cksum 257#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0] 258 259struct nd_neighbor_advert { /* neighbor advertisement */ 260 struct icmp6_hdr nd_na_hdr; 261 struct in6_addr nd_na_target; /* target address */ 262 /* could be followed by options */ 263}; 264 265#define nd_na_type nd_na_hdr.icmp6_type 266#define nd_na_code nd_na_hdr.icmp6_code 267#define nd_na_cksum nd_na_hdr.icmp6_cksum 268#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0] 269#if BYTE_ORDER == BIG_ENDIAN 270#define ND_NA_FLAG_ROUTER 0x80000000 271#define ND_NA_FLAG_SOLICITED 0x40000000 272#define ND_NA_FLAG_OVERRIDE 0x20000000 273#else 274#if BYTE_ORDER == LITTLE_ENDIAN 275#define ND_NA_FLAG_ROUTER 0x80 276#define ND_NA_FLAG_SOLICITED 0x40 277#define ND_NA_FLAG_OVERRIDE 0x20 278#endif 279#endif 280 281struct nd_redirect { /* redirect */ 282 struct icmp6_hdr nd_rd_hdr; 283 struct in6_addr nd_rd_target; /* target address */ 284 struct in6_addr nd_rd_dst; /* destination address */ 285 /* could be followed by options */ 286}; 287 288#define nd_rd_type nd_rd_hdr.icmp6_type 289#define nd_rd_code nd_rd_hdr.icmp6_code 290#define nd_rd_cksum nd_rd_hdr.icmp6_cksum 291#define nd_rd_reserved nd_rd_hdr.icmp6_data32[0] 292 293struct nd_opt_hdr { /* Neighbor discovery option header */ 294 u_int8_t nd_opt_type; 295 u_int8_t nd_opt_len; 296 /* followed by option specific data*/ 297}; 298 299#define ND_OPT_SOURCE_LINKADDR 1 300#define ND_OPT_TARGET_LINKADDR 2 301#define ND_OPT_PREFIX_INFORMATION 3 302#define ND_OPT_REDIRECTED_HEADER 4 303#define ND_OPT_MTU 5 304 305#define ND_OPT_ROUTE_INFO 200 /* draft-ietf-ipngwg-router-preference, not officially assigned yet */ 306 307struct nd_opt_prefix_info { /* prefix information */ 308 u_int8_t nd_opt_pi_type; 309 u_int8_t nd_opt_pi_len; 310 u_int8_t nd_opt_pi_prefix_len; 311 u_int8_t nd_opt_pi_flags_reserved; 312 u_int32_t nd_opt_pi_valid_time; 313 u_int32_t nd_opt_pi_preferred_time; 314 u_int32_t nd_opt_pi_reserved2; 315 struct in6_addr nd_opt_pi_prefix; 316}; 317 318#define ND_OPT_PI_FLAG_ONLINK 0x80 319#define ND_OPT_PI_FLAG_AUTO 0x40 320 321struct nd_opt_rd_hdr { /* redirected header */ 322 u_int8_t nd_opt_rh_type; 323 u_int8_t nd_opt_rh_len; 324 u_int16_t nd_opt_rh_reserved1; 325 u_int32_t nd_opt_rh_reserved2; 326 /* followed by IP header and data */ 327}; 328 329struct nd_opt_mtu { /* MTU option */ 330 u_int8_t nd_opt_mtu_type; 331 u_int8_t nd_opt_mtu_len; 332 u_int16_t nd_opt_mtu_reserved; 333 u_int32_t nd_opt_mtu_mtu; 334}; 335 336struct nd_opt_route_info { /* route info */ 337 u_int8_t nd_opt_rti_type; 338 u_int8_t nd_opt_rti_len; 339 u_int8_t nd_opt_rti_prefixlen; 340 u_int8_t nd_opt_rti_flags; 341 u_int32_t nd_opt_rti_lifetime; 342 /* followed by prefix */ 343}; 344 345/* 346 * icmp6 namelookup 347 */ 348 349struct icmp6_namelookup { 350 struct icmp6_hdr icmp6_nl_hdr; 351 u_int8_t icmp6_nl_nonce[8]; 352 int32_t icmp6_nl_ttl; 353#if 0 354 u_int8_t icmp6_nl_len; 355 u_int8_t icmp6_nl_name[3]; 356#endif 357 /* could be followed by options */ 358}; 359 360/* 361 * icmp6 node information 362 */ 363struct icmp6_nodeinfo { 364 struct icmp6_hdr icmp6_ni_hdr; 365 u_int8_t icmp6_ni_nonce[8]; 366 /* could be followed by reply data */ 367}; 368 369#define ni_type icmp6_ni_hdr.icmp6_type 370#define ni_code icmp6_ni_hdr.icmp6_code 371#define ni_cksum icmp6_ni_hdr.icmp6_cksum 372#define ni_qtype icmp6_ni_hdr.icmp6_data16[0] 373#define ni_flags icmp6_ni_hdr.icmp6_data16[1] 374 375#define NI_QTYPE_NOOP 0 /* NOOP */ 376#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */ 377#define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */ 378#define NI_QTYPE_DNSNAME 2 /* DNS Name */ 379#define NI_QTYPE_NODEADDR 3 /* Node Addresses */ 380#define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */ 381 382#if BYTE_ORDER == BIG_ENDIAN 383#define NI_SUPTYPE_FLAG_COMPRESS 0x1 384#define NI_FQDN_FLAG_VALIDTTL 0x1 385#elif BYTE_ORDER == LITTLE_ENDIAN 386#define NI_SUPTYPE_FLAG_COMPRESS 0x0100 387#define NI_FQDN_FLAG_VALIDTTL 0x0100 388#endif 389 390#ifdef NAME_LOOKUPS_04 391#if BYTE_ORDER == BIG_ENDIAN 392#define NI_NODEADDR_FLAG_LINKLOCAL 0x1 393#define NI_NODEADDR_FLAG_SITELOCAL 0x2 394#define NI_NODEADDR_FLAG_GLOBAL 0x4 395#define NI_NODEADDR_FLAG_ALL 0x8 396#define NI_NODEADDR_FLAG_TRUNCATE 0x10 397#define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */ 398#elif BYTE_ORDER == LITTLE_ENDIAN 399#define NI_NODEADDR_FLAG_LINKLOCAL 0x0100 400#define NI_NODEADDR_FLAG_SITELOCAL 0x0200 401#define NI_NODEADDR_FLAG_GLOBAL 0x0400 402#define NI_NODEADDR_FLAG_ALL 0x0800 403#define NI_NODEADDR_FLAG_TRUNCATE 0x1000 404#define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */ 405#endif 406#else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */ 407#if BYTE_ORDER == BIG_ENDIAN 408#define NI_NODEADDR_FLAG_TRUNCATE 0x1 409#define NI_NODEADDR_FLAG_ALL 0x2 410#define NI_NODEADDR_FLAG_COMPAT 0x4 411#define NI_NODEADDR_FLAG_LINKLOCAL 0x8 412#define NI_NODEADDR_FLAG_SITELOCAL 0x10 413#define NI_NODEADDR_FLAG_GLOBAL 0x20 414#define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */ 415#elif BYTE_ORDER == LITTLE_ENDIAN 416#define NI_NODEADDR_FLAG_TRUNCATE 0x0100 417#define NI_NODEADDR_FLAG_ALL 0x0200 418#define NI_NODEADDR_FLAG_COMPAT 0x0400 419#define NI_NODEADDR_FLAG_LINKLOCAL 0x0800 420#define NI_NODEADDR_FLAG_SITELOCAL 0x1000 421#define NI_NODEADDR_FLAG_GLOBAL 0x2000 422#define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */ 423#endif 424#endif 425 426struct ni_reply_fqdn { 427 u_int32_t ni_fqdn_ttl; /* TTL */ 428 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */ 429 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */ 430}; 431 432/* 433 * Router Renumbering. as router-renum-08.txt 434 */ 435struct icmp6_router_renum { /* router renumbering header */ 436 struct icmp6_hdr rr_hdr; 437 u_int8_t rr_segnum; 438 u_int8_t rr_flags; 439 u_int16_t rr_maxdelay; 440 u_int32_t rr_reserved; 441}; 442 443#define ICMP6_RR_FLAGS_TEST 0x80 444#define ICMP6_RR_FLAGS_REQRESULT 0x40 445#define ICMP6_RR_FLAGS_FORCEAPPLY 0x20 446#define ICMP6_RR_FLAGS_SPECSITE 0x10 447#define ICMP6_RR_FLAGS_PREVDONE 0x08 448 449#define rr_type rr_hdr.icmp6_type 450#define rr_code rr_hdr.icmp6_code 451#define rr_cksum rr_hdr.icmp6_cksum 452#define rr_seqnum rr_hdr.icmp6_data32[0] 453 454struct rr_pco_match { /* match prefix part */ 455 u_int8_t rpm_code; 456 u_int8_t rpm_len; 457 u_int8_t rpm_ordinal; 458 u_int8_t rpm_matchlen; 459 u_int8_t rpm_minlen; 460 u_int8_t rpm_maxlen; 461 u_int16_t rpm_reserved; 462 struct in6_addr rpm_prefix; 463}; 464 465#define RPM_PCO_ADD 1 466#define RPM_PCO_CHANGE 2 467#define RPM_PCO_SETGLOBAL 3 468#define RPM_PCO_MAX 4 469 470struct rr_pco_use { /* use prefix part */ 471 u_int8_t rpu_uselen; 472 u_int8_t rpu_keeplen; 473 u_int8_t rpu_ramask; 474 u_int8_t rpu_raflags; 475 u_int32_t rpu_vltime; 476 u_int32_t rpu_pltime; 477 u_int32_t rpu_flags; 478 struct in6_addr rpu_prefix; 479}; 480#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80 481#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40 482 483#if BYTE_ORDER == BIG_ENDIAN 484#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000 485#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000 486#elif BYTE_ORDER == LITTLE_ENDIAN 487#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80 488#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40 489#endif 490 491struct rr_result { /* router renumbering result message */ 492 u_int16_t rrr_flags; 493 u_int8_t rrr_ordinal; 494 u_int8_t rrr_matchedlen; 495 u_int32_t rrr_ifid; 496 struct in6_addr rrr_prefix; 497}; 498#if BYTE_ORDER == BIG_ENDIAN 499#define ICMP6_RR_RESULT_FLAGS_OOB 0x0002 500#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001 501#elif BYTE_ORDER == LITTLE_ENDIAN 502#define ICMP6_RR_RESULT_FLAGS_OOB 0x0200 503#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100 504#endif 505 506/* 507 * icmp6 filter structures. 508 */ 509 510struct icmp6_filter { 511 u_int32_t icmp6_filt[8]; 512}; 513 514#ifdef KERNEL 515#define ICMP6_FILTER_SETPASSALL(filterp) \ 516do { \ 517 int i; u_char *ptr; \ 518 ptr = (u_char *)filterp; \ 519 for (i = 0; i < sizeof(struct icmp6_filter); i++) \ 520 ptr[i] = 0xff; \ 521} while (0) 522#define ICMP6_FILTER_SETBLOCKALL(filterp) \ 523 bzero(filterp, sizeof(struct icmp6_filter)) 524#else /* KERNEL */ 525#define ICMP6_FILTER_SETPASSALL(filterp) \ 526 memset(filterp, 0xff, sizeof(struct icmp6_filter)) 527#define ICMP6_FILTER_SETBLOCKALL(filterp) \ 528 memset(filterp, 0x00, sizeof(struct icmp6_filter)) 529#endif /* KERNEL */ 530 531#define ICMP6_FILTER_SETPASS(type, filterp) \ 532 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31))) 533#define ICMP6_FILTER_SETBLOCK(type, filterp) \ 534 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31))) 535#define ICMP6_FILTER_WILLPASS(type, filterp) \ 536 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0) 537#define ICMP6_FILTER_WILLBLOCK(type, filterp) \ 538 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0) 539 540/* 541 * Variables related to this implementation 542 * of the internet control message protocol version 6. 543 */ 544struct icmp6errstat { 545 u_quad_t icp6errs_dst_unreach_noroute; 546 u_quad_t icp6errs_dst_unreach_admin; 547 u_quad_t icp6errs_dst_unreach_beyondscope; 548 u_quad_t icp6errs_dst_unreach_addr; 549 u_quad_t icp6errs_dst_unreach_noport; 550 u_quad_t icp6errs_packet_too_big; 551 u_quad_t icp6errs_time_exceed_transit; 552 u_quad_t icp6errs_time_exceed_reassembly; 553 u_quad_t icp6errs_paramprob_header; 554 u_quad_t icp6errs_paramprob_nextheader; 555 u_quad_t icp6errs_paramprob_option; 556 u_quad_t icp6errs_redirect; /* we regard redirect as an error here */ 557 u_quad_t icp6errs_unknown; 558}; 559 560struct icmp6stat { 561/* statistics related to icmp6 packets generated */ 562 u_quad_t icp6s_error; /* # of calls to icmp6_error */ 563 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */ 564 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */ 565 u_quad_t icp6s_outhist[256]; 566/* statistics related to input message processed */ 567 u_quad_t icp6s_badcode; /* icmp6_code out of range */ 568 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */ 569 u_quad_t icp6s_checksum; /* bad checksum */ 570 u_quad_t icp6s_badlen; /* calculated bound mismatch */ 571 u_quad_t icp6s_reflect; /* number of responses */ 572 u_quad_t icp6s_inhist[256]; 573 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */ 574 struct icmp6errstat icp6s_outerrhist; 575#define icp6s_odst_unreach_noroute \ 576 icp6s_outerrhist.icp6errs_dst_unreach_noroute 577#define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin 578#define icp6s_odst_unreach_beyondscope \ 579 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope 580#define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr 581#define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport 582#define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big 583#define icp6s_otime_exceed_transit \ 584 icp6s_outerrhist.icp6errs_time_exceed_transit 585#define icp6s_otime_exceed_reassembly \ 586 icp6s_outerrhist.icp6errs_time_exceed_reassembly 587#define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header 588#define icp6s_oparamprob_nextheader \ 589 icp6s_outerrhist.icp6errs_paramprob_nextheader 590#define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option 591#define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect 592#define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown 593 u_quad_t icp6s_pmtuchg; /* path MTU changes */ 594 u_quad_t icp6s_nd_badopt; /* bad ND options */ 595 u_quad_t icp6s_badns; /* bad neighbor solicitation */ 596 u_quad_t icp6s_badna; /* bad neighbor advertisement */ 597 u_quad_t icp6s_badrs; /* bad router advertisement */ 598 u_quad_t icp6s_badra; /* bad router advertisement */ 599 u_quad_t icp6s_badredirect; /* bad redirect message */ 600}; 601 602/* 603 * Names for ICMP sysctl objects 604 */ 605#define ICMPV6CTL_STATS 1 606#define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */ 607#define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */ 608#define ICMPV6CTL_ND6_PRUNE 6 609#define ICMPV6CTL_ND6_DELAY 8 610#define ICMPV6CTL_ND6_UMAXTRIES 9 611#define ICMPV6CTL_ND6_MMAXTRIES 10 612#define ICMPV6CTL_ND6_USELOOPBACK 11 613/*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */ 614#define ICMPV6CTL_NODEINFO 13 615#define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */ 616#define ICMPV6CTL_ND6_MAXNUDHINT 15 617#define ICMPV6CTL_MTUDISC_HIWAT 16 618#define ICMPV6CTL_MTUDISC_LOWAT 17 619#define ICMPV6CTL_ND6_DEBUG 18 620#define ICMPV6CTL_ND6_DRLIST 19 621#define ICMPV6CTL_ND6_PRLIST 20 622#define ICMPV6CTL_MAXID 21 623 624#ifdef KERNEL_PRIVATE 625#define ICMPV6CTL_NAMES { \ 626 { 0, 0 }, \ 627 { 0, 0 }, \ 628 { "rediraccept", CTLTYPE_INT }, \ 629 { "redirtimeout", CTLTYPE_INT }, \ 630 { 0, 0 }, \ 631 { 0, 0 }, \ 632 { "nd6_prune", CTLTYPE_INT }, \ 633 { 0, 0 }, \ 634 { "nd6_delay", CTLTYPE_INT }, \ 635 { "nd6_umaxtries", CTLTYPE_INT }, \ 636 { "nd6_mmaxtries", CTLTYPE_INT }, \ 637 { "nd6_useloopback", CTLTYPE_INT }, \ 638 { 0, 0 }, \ 639 { "nodeinfo", CTLTYPE_INT }, \ 640 { "errppslimit", CTLTYPE_INT }, \ 641 { "nd6_maxnudhint", CTLTYPE_INT }, \ 642 { "mtudisc_hiwat", CTLTYPE_INT }, \ 643 { "mtudisc_lowat", CTLTYPE_INT }, \ 644 { "nd6_debug", CTLTYPE_INT }, \ 645 { 0, 0 }, \ 646 { 0, 0 }, \ 647} 648 649#define RTF_PROBEMTU RTF_PROTO1 650 651# ifdef __STDC__ 652struct rtentry; 653struct rttimer; 654struct in6_multi; 655# endif 656void icmp6_init(void); 657void icmp6_paramerror(struct mbuf *, int); 658void icmp6_error(struct mbuf *, int, int, int); 659int icmp6_input(struct mbuf **, int *); 660void icmp6_fasttimo(void); 661void icmp6_reflect(struct mbuf *, size_t); 662void icmp6_prepare(struct mbuf *); 663void icmp6_redirect_input(struct mbuf *, int); 664void icmp6_redirect_output(struct mbuf *, struct rtentry *); 665 666struct ip6ctlparam; 667void icmp6_mtudisc_update(struct ip6ctlparam *, int); 668 669/* XXX: is this the right place for these macros? */ 670#define icmp6_ifstat_inc(ifp, tag) \ 671do { \ 672 if ((ifp) && (ifp)->if_index <= if_index \ 673 && (ifp)->if_index < icmp6_ifstatmax \ 674 && icmp6_ifstat && icmp6_ifstat[(ifp)->if_index]) { \ 675 icmp6_ifstat[(ifp)->if_index]->tag++; \ 676 } \ 677} while (0) 678 679#define icmp6_ifoutstat_inc(ifp, type, code) \ 680do { \ 681 icmp6_ifstat_inc(ifp, ifs6_out_msg); \ 682 if (type < ICMP6_INFOMSG_MASK) \ 683 icmp6_ifstat_inc(ifp, ifs6_out_error); \ 684 switch(type) { \ 685 case ICMP6_DST_UNREACH: \ 686 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \ 687 if (code == ICMP6_DST_UNREACH_ADMIN) \ 688 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \ 689 break; \ 690 case ICMP6_PACKET_TOO_BIG: \ 691 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \ 692 break; \ 693 case ICMP6_TIME_EXCEEDED: \ 694 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \ 695 break; \ 696 case ICMP6_PARAM_PROB: \ 697 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \ 698 break; \ 699 case ICMP6_ECHO_REQUEST: \ 700 icmp6_ifstat_inc(ifp, ifs6_out_echo); \ 701 break; \ 702 case ICMP6_ECHO_REPLY: \ 703 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \ 704 break; \ 705 case MLD6_LISTENER_QUERY: \ 706 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \ 707 break; \ 708 case MLD6_LISTENER_REPORT: \ 709 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \ 710 break; \ 711 case MLD6_LISTENER_DONE: \ 712 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \ 713 break; \ 714 case ND_ROUTER_SOLICIT: \ 715 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \ 716 break; \ 717 case ND_ROUTER_ADVERT: \ 718 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \ 719 break; \ 720 case ND_NEIGHBOR_SOLICIT: \ 721 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \ 722 break; \ 723 case ND_NEIGHBOR_ADVERT: \ 724 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \ 725 break; \ 726 case ND_REDIRECT: \ 727 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \ 728 break; \ 729 } \ 730} while (0) 731 732extern int icmp6_rediraccept; /* accept/process redirects */ 733extern int icmp6_redirtimeout; /* cache time for redirect routes */ 734#endif KERNEL_PRIVATE 735 736#endif /* !_NETINET_ICMP6_H_ */ 737